166 results on '"Xiaoxia Cui"'
Search Results
2. Highly reliable creation of floxed alleles by electroporating single-cell embryos
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Monica F. Sentmanat, J. Michael White, Evguenia Kouranova, and Xiaoxia Cui
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Mouse models ,Gene editing ,Conditional knockout mice ,CRISPR ,Floxing ,Functional genomics ,Biology (General) ,QH301-705.5 - Abstract
Abstract Background Floxed (flanked by loxP) alleles are a crucial portion of conditional knockout mouse models. However, an efficient and reliable strategy to flox genomic regions of any desired size is still lacking. Results Here, we demonstrate that the method combining electroporation of fertilized eggs with gRNA/Cas9 complexes and single-stranded oligodeoxynucleotides (ssODNs), assessing phasing of loxP insertions in founders using an in vitro Cre assay and an optional, highly specific and efficient second-round targeting ensures the generation of floxed F1 animals in roughly five months for a wide range of sequence lengths (448 bp to 160 kb reported here). Conclusions Floxed alleles can be reliably obtained in a predictable timeline using the improved method of electroporation of two gRNA/Cas9 ribonucleoprotein particles (RNPs) and two ssODNs.
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- 2022
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3. Meta‐analysis of immune‐related adverse events of immune checkpoint inhibitor therapy in cancer patients
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Peng Song, Dingding Zhang, Xiaoxia Cui, and Li Zhang
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Cancer ,immune checkpoint inhibitor (ICI) ,immune‐related adverse events (irAEs) ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Immune checkpoint inhibitors (ICIs) have significant clinical efficacy in the treatment of non‐small cell lung cancer (NSCLC); however, the incidence of immune‐related adverse events (irAEs) of up to 50% has prevented their widespread use. With the increase in the use of ICIs alone or as combination therapy, clinicians are required to have a better understanding of irAEs and be able to manage them systematically. In this study, we aimed to assess the incidence of irAEs associated with ICIs. Methods We searched PubMed, Embase, and the Web of Science databases, and also included relevant literature references to widen our search. The relevant data with inclusion criteria were performed using RevMan 3.6.0 for meta‐analysis. We undertook a systematic literature search which included published data up to December 2019. Results Overall, 147 articles and 23 761 cancer patients with 11 different ICI treatment‐related (grade 1–5 and 3–5) irAEs were included in the study. There were 46 articles on pembrolizumab (6598 patients), 27 on nivolumab (3576 patients), 13 on atezolizumab (2787 patients), 12 on avelumab (3213 patients), 10 on durvalumab (1780 patients), 22 on ipilimumab (4067 patients), eight on tremelimumab (1158 patients), three on JS001 (223 patients), four on camrelizumab (SHR‐1210) (178 patients), one on sintilimab (96 patients), and one on cemiplimab (85 patients). Grade 1–5 irAEs were: cytotoxic T lymphocyte antigen 4 (CTLA‐4) (82.87%), programmed cell death 1 (PD‐1) (71.89%), and programmed cell death ligand‐1 (PD‐L1) (58.95%). Subgroup analysis was: Avelumab (44.53%), durvalumab (66.63%), pembrolizumab (67.25%), atezolizumab (68.77%), nivolumab (76.25%), Ipilimumab (82.18%), and tremelimumab (86.78%). Grade 3–5 irAEs were: CTLA‐4 (27.22%), PD‐1(17.29%), and PD‐L1(17.29%). Subgroup analysis was: Avelumab (5.86%), durvalumab (13.43%), atezolizumab (14.45%), nivolumab (15.72%), pembrolizumab (16.58%), tremelimumab (22.04%), and ipilimumab (28.27%). Conclusions This meta‐analysis confirmed that anti‐PD‐1 and anti‐PD‐L1 inhibitors had a lower incidence of irAEs compared with anti‐CTLA‐4 inhibitors.
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- 2020
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4. Relationship between intestinal flora structure and metabolite analysis and immunotherapy efficacy in Chinese NSCLC patients
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Peng Song, Dongliang Yang, Hanping Wang, Xiaoxia Cui, Xiaoyan Si, Xiaotong Zhang, and Li Zhang
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Β‐diversity ,intestinal flora ,non‐small cell lung cancer ,programmed cell death 1 (PD‐1) ,programmed cell death 1 ligand(PD‐L1) ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background Many immune checkpoint inhibitors (ICIs) have been approved in China to treat non‐small cell lung cancer (NSCLC). However, in the long term, less than 20% of patients benefit from ICIs. To maximize the benefit for NSCLC patients, it is necessary to guide the choice of immunotherapy through biomarkers. Recent studies have shown that gut microbiota can affect tumor response to immunotherapy and might be a potential predictive biomarker. This study analyzed the relationship between intestinal flora structure and metabolomic characteristics in NSCLC and the efficacy of ICIs. Methods Prospective analysis of samples from 63 patients with advanced NSCLC who attended the Department of Respiratory Medicine of the Peking Union Medical College Hospital from March 2018 to June 2019, and were prescribed programmed cell death 1 (PD‐1) inhibitors, was carried out. The follow‐up deadline was 31 December 2019. Stool samples were collected from all patients before the start of immunotherapy. DNA was extracted from all samples and libraries were constructed. This was followed by sequencing using the Illumina sequencing platform, and results were studied using a biological information data analysis process. We divided the data into two groups based on progression‐free survival (PFS) ≥ six months and PFS
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- 2020
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5. Relationship between the efficacy of immunotherapy and characteristics of specific tumor mutation genes in non‐small cell lung cancer patients
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Peng Song, Dongliang Yang, Hanping Wang, Xiaoxia Cui, Xiaoyan Si, Xiaotong Zhang, and Li Zhang
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Immune checkpoint inhibitor ,KRAS ,non‐small cell lung cancer ,PD‐1 ,PD‐L1 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Immune checkpoint inhibitors (ICIs) have greatly improved the prognosis and overall management of non‐small cell lung cancer (NSCLC) patients, but in the long term less than 20% of patients benefit from treatment with ICIs. Therefore, it is necessary to guide the choice of immunotherapy population through biomarkers in order to maximize the benefit for NSCLC patients. This article mainly explores the relationship between the efficacy of immunotherapy and specific tumor mutation gene characteristics in an NSCLC population. Methods This was a prospective analysis of patients with advanced NSCLC who visited the Department of Respiratory Medicine of Peking Union Medical College Hospital from March 2018 to June 2019 and were instructed to use PD‐1 inhibitors. The follow‐up deadline was 31 December 2019. The tumor pathological tissues were tested for tumor mutation genes, and the patients were evaluated for efficacy according to RECIST 1.1. The patients were divided into the durable benefit group (DCB) and the nonsustainable benefit group (NDB). DCB/NDB was used as the outcome variable. Various statistics methods were used to explore the independent predictors of long‐term benefits associated with immunotherapy and to draw a progression‐free survival curve for the relevant predictors. Results A total of 44 patients were examined for tumor mutation genes in pathological tissues; 20 in the DCB group and 24 in the NDB group. Specific gene mutations occurred in TP53 38.64%, KRAS 31.82%, EGFR 20.45%, BRCA 20.45%, ERBB (excluding EGFR) 18.18%, PTEN 15.91%, CDK4/6 13.64%, POLE 11.36%, MET 11.36%, PIK3CA 9.10%, FGFR 9.10%, BRAF 9.10%, JAK 9.10%, ALK 6.82%, POLD1 4.55%, BLM 4.55%. Chi‐square test results showed that there were statistically significant differences between DCB and NDB groups with eight mutations such as KRAS. Logistic regression showed that the KRAS mutation was statistically significant (P
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- 2020
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6. GmWRKY40, a member of the WRKY transcription factor genes identified from Glycine max L., enhanced the resistance to Phytophthora sojae
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Xiaoxia Cui, Qiang Yan, Shuping Gan, Dong Xue, Haitang Wang, Han Xing, Jinming Zhao, and Na Guo
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Glycine max (L.) Merr ,Phytophthora sojae ,GmWRKY40 ,RNA interference ,Yeast two-hybrid ,Soybean hairy roots ,Botany ,QK1-989 - Abstract
Abstract Background The WRKY proteins are a superfamily of transcription factors and members play essential roles in the modulation of diverse physiological processes, such as growth, development, senescence and response to biotic and abiotic stresses. However, the biological roles of the majority of the WRKY family members remains poorly understood in soybean relative to the research progress in model plants. Results In this study, we identified and characterized GmWRKY40, which is a group IIc WRKY gene. Transient expression analysis revealed that the GmWRKY40 protein is located in the nucleus of plant cells. Expression of GmWRKY40 was strongly induced in soybean following infection with Phytophthora sojae, or treatment with methyl jasmonate, ethylene, salicylic acid, and abscisic acid. Furthermore, soybean hairy roots silencing GmWRKY40 enhanced susceptibility to P. sojae infection compared with empty vector transgenic roots. Moreover, suppression of GmWRKY40 decreased the accumulation of reactive oxygen species (ROS) and modified the expression of several oxidation-related genes. Yeast two-hybrid experiment combined with RNA-seq analysis showed that GmWRKY40 interacted with 8 JAZ proteins with or without the WRKY domain or zinc-finger domain of GmWRKY40, suggesting there were different interaction patterns among these interacted proteins. Conclusions Collectively, these results suggests that GmWRKY40 functions as a positive regulator in soybean plants response to P. sojae through modulating hydrogen peroxide accumulation and JA signaling pathway.
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- 2019
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7. New Advances in the Treatment for Small Cell Lung Cancer
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Xiaoxia CUI, Peng SONG, and Li ZHANG
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Lung neoplasms ,Biology ,Antiangiogenic agents ,Molecular-target therapy ,Immune checkpoint inhibitors ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Small cell lung cancer (SCLC) is a refractory cancer with high degree of malignancy, rapid disease progression, poor prognosis and easy recurrence. In the past 30 years, the traditional treatment of SCLC, mainly chemotherapy and radiotherapy, has not changed significantly, and the effective treatment method for clinical needs is extremely urgent. The rapid development of precision medicine has revealed the molecular biological characteristics of SCLC, so its diagnosis and treatment will into a new era. At present, some studies have shown that anti-angiogenic drugs, immunotherapy and so on have improved the efficacy of SCLC treatment to some extent, and there are more studies on the diagnosis and treatment of SCLC, so a new field of SCLC treatment are coming and bringing more survival benefits to patients. New studies on targeted therapy, anti-angiogenesis drugs and immunotherapy of molecular pathology of SCLC are emerging. This paper reviews the new diagnosis and treatment methods of SCLC to provide new guidance for its clinical treatment.
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- 2019
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8. Genome-Wide Identification of Phytophthora sojae-Associated microRNAs and Network in a Resistant and a Susceptible Soybean Germplasm
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Na Guo, Ammara Tahir, Xiaoxia Cui, Jianyu Xu, Jutao Sun, Nannan Zhang, Ruidong Sun, Sushuang Deng, Han Xing, and Jinming Zhao
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Glycine max ,Phytophthora sojae ,microRNA ,RNA sequencing ,resistance ,Agriculture - Abstract
Phytophthora root rot, caused by Phytophthora sojae (P. sojae), is one of the most devastating diseases limiting soybean production worldwide. microRNAs (miRNAs) play major roles in regulating plant defense against pathogens. To understand the roles of soybean miRNAs during P. sojae infection, we analyzed four small RNA libraries from two soybean germplasms before and after P. sojae isolate JS08-12 infection. The cultivar Nannong 10-1 was resistant to JS08-12, whereas the 06-070583 line was susceptible to JS08-12. In total, 528 known and 555 putative novel miRNAs in soybean were identified from 97 million reads; 74 known miRNAs and 75 novel miRNAs that might be specifically related to Nannong10-1 responses to P. sojae; and 55 known and 43 novel miRNAs expressed before and after infection in the susceptible line 06-070583. qRT-PCR provided similar miRNA expression patterns to those obtained by the small-RNA sequencing of the four libraries. Then, the potential target genes of these differentially expressed miRNA were predicted, which encoded transcriptional factors, resistance proteins and transporters. Finally, we focused on the targets of the three legume-specific miRNAs (gma-miR1508, gma-miR1509, and gma-miR1510) and charted the miRNA–target interactions and networks based on the published degradome data.
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- 2022
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9. Ligand-Free BaF2: Nd Nanoparticles With Low Cytotoxicity, High Stability and Enhanced Fluorescence Intensity as NIR-II Imaging Probes
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Xiaoxia Cui, Yantao Xu, Shengfei She, Xusheng Xiao, Chaoqi Hou, and Haitao Guo
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BaF2:Nd ,fluorescence imaging ,stability ,low toxicity ,NIR-II ,Physics ,QC1-999 - Abstract
Ligand-free BaF2:Nd nanoparticles (NPs) with a size of 10 nm were fabricated by a novel synthetic route in the liquid phase. A transparent dispersion of the BaF2:Nd NPs mixed with propanetriol and DMSO-d6 was done. Highly stable and outstanding near-infrared (NIR) fluorescence centered at 1,058 nm was detected using an excitation wavelength of 808 nm laser. Moreover, the dispersion can be found to be stable for over 1 month, and the cytotoxicity of the BaF2:Nd NP dispersion has also been studied by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. The superior performance of these NPs exhibits their great potential application in high-contrast and high-penetration in vivo imaging.
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- 2021
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10. Theoretical Modeling of 4.3 μm Mid-Infrared Lasing in Dy3+-Doped Chalcogenide Fiber Lasers
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Xusheng Xiao, Yantao Xu, Haitao Guo, Pengfei Wang, Xiaoxia Cui, Min Lu, Yishan Wang, and Bo Peng
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Theoretical modeling ,fiber lasers ,4.3 ${\mu}$ m mid-infrared. ,Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
We theoretically investigate a Dy3+-doped chalcogenide fiber lasers operating at 4.3 μ m based on the rate equations and propagation equations. The two main pump bands for 1319 and 1707 nm corresponding to the 6H15/2→6H9/2 and 6H15/2→6H13/2 transitions are discussed in detail. The predicted maximum slope efficiencies are determined to be ~7.8% and ~15.1% for the two pumping wavelength, respectively. Besides, the variety of laser performance has been systematically analyzed when the pump configurations, fiber length, fiber loss are varied. This numerical analysis might be useful to explore the 4.3 μm lasing operation for the mid-infrared chalcogenide fiber lasers in future.
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- 2018
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11. CRISPR/Cas9-Mediated Insertion of loxP Sites in the Mouse Dock7 Gene Provides an Effective Alternative to Use of Targeted Embryonic Stem Cells
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Kathleen A. Bishop, Anne Harrington, Evguenia Kouranova, Edward J. Weinstein, Clifford J. Rosen, Xiaoxia Cui, and Lucy Liaw
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Dock7 ,CRISPR/Cas9 ,KOMP ES cells ,Genetics ,QH426-470 - Abstract
Targeted gene mutation in the mouse is a primary strategy to understand gene function and relation to phenotype. The Knockout Mouse Project (KOMP) had an initial goal to develop a public resource of mouse embryonic stem (ES) cell clones that carry null mutations in all genes. Indeed, many useful novel mouse models have been generated from publically accessible targeted mouse ES cell lines. However, there are limitations, including incorrect targeting or cassette structure, and difficulties with germline transmission of the allele from chimeric mice. In our experience, using a small sample of targeted ES cell clones, we were successful ∼50% of the time in generating germline transmission of a correctly targeted allele. With the advent of CRISPR/Cas9 as a mouse genome modification tool, we assessed the efficiency of creating a conditional targeted allele in one gene, dedicator of cytokinesis 7 (Dock7), for which we were unsuccessful in generating a null allele using a KOMP targeted ES cell clone. The strategy was to insert loxP sites to flank either exons 3 and 4, or exons 3 through 7. By coinjecting Cas9 mRNA, validated sgRNAs, and oligonucleotide donors into fertilized eggs from C57BL/6J mice, we obtained a variety of alleles, including mice homozygous for the null alleles mediated by nonhomologous end joining, alleles with one of the two desired loxP sites, and correctly targeted alleles with both loxP sites. We also found frequent mutations in the inserted loxP sequence, which is partly attributable to the heterogeneity in the original oligonucleotide preparation.
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- 2016
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12. GmDAD1, a Conserved Defender Against Cell Death 1 (DAD1) From Soybean, Positively Regulates Plant Resistance Against Phytophthora Pathogens
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Qiang Yan, Jierui Si, Xiaoxia Cui, Hao Peng, Maofeng Jing, Xin Chen, Han Xing, and Daolong Dou
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Glycine max ,Phytophthora resistant ,defender against apoptotic death 1 (DAD1) ,programmed cell death (PCD) ,ER stress ,Plant culture ,SB1-1110 - Abstract
Initially identified as a mammalian apoptosis suppressor, defender against apoptotic death 1 (DAD1) protein has conserved plant orthologs acting as negative regulators of cell death. The potential roles and action mechanisms of plant DADs in resistance against Phytophthora pathogens are still unknown. Here, we cloned GmDAD1 from soybean and performed functional dissection. GmDAD1 expression can be induced by Phytophthora sojae infection in both compatible and incompatible soybean varieties. By manipulating GmDAD1 expression in soybean hairy roots, we showed that GmDAD1 transcript accumulations are positively correlated with plant resistance levels against P. sojae. Heterologous expression of GmDAD1 in Nicotiana benthamiana enhanced its resistance to Phytophthora parasitica. NbDAD1 from N. benthamiana was shown to have similar role in conferring Phytophthora resistance. As an endoplasmic reticulum (ER)-localized protein, GmDAD1 was demonstrated to be involved in ER stress signaling and to affect the expression of multiple defense-related genes. Taken together, our findings reveal that GmDAD1 plays a critical role in defense against Phytophthora pathogens and might participate in the ER stress signaling pathway. The defense-associated characteristic of GmDAD1 makes it a valuable working target for breeding Phytophthora resistant soybean varieties.
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- 2019
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13. Correction: Tissue Specific Expression of Cre in Rat Tyrosine Hydroxylase and Dopamine Active Transporter-Positive Neurons.
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Zhenyi Liu, Andrew Brown, Dan Fisher, Yumei Wu, Joe Warren, and Xiaoxia Cui
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Medicine ,Science - Abstract
[This corrects the article DOI: 10.1371/journal.pone.0149379.].
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- 2019
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14. Phenotypic characterization of recessive gene knockout rat models of Parkinson's disease
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Kuldip D. Dave, Shehan De Silva, Niketa P. Sheth, Sylvie Ramboz, Melissa J. Beck, Changyu Quang, Robert C. Switzer, III, Syed O. Ahmad, Susan M. Sunkin, Dan Walker, Xiaoxia Cui, Daniel A. Fisher, Aaron M. McCoy, Kevin Gamber, Xiaodong Ding, Matthew S. Goldberg, Stanley A. Benkovic, Meredith Haupt, Marco A.S. Baptista, Brian K. Fiske, Todd B. Sherer, and Mark A. Frasier
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Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Recessively inherited loss-of-function mutations in the PTEN-induced putative kinase 1(Pink1), DJ-1 (Park7) and Parkin (Park2) genes are linked to familial cases of early-onset Parkinson's disease (PD). As part of its strategy to provide more tools for the research community, The Michael J. Fox Foundation for Parkinson's Research (MJFF) funded the generation of novel rat models with targeted disruption ofPink1, DJ-1 or Parkin genes and determined if the loss of these proteins would result in a progressive PD-like phenotype. Pathological, neurochemical and behavioral outcome measures were collected at 4, 6 and 8 months of age in homozygous KO rats and compared to wild-type (WT) rats. Both Pink1 and DJ-1 KO rats showed progressive nigral neurodegeneration with about 50% dopaminergic cell loss observed at 8 months of age. ThePink1 KO and DJ-1 KO rats also showed a two to three fold increase in striatal dopamine and serotonin content at 8 months of age. Both Pink1 KO and DJ-1 KO rats exhibited significant motor deficits starting at 4 months of age. However, Parkin KO rats displayed normal behaviors with no neurochemical or pathological changes. These results demonstrate that inactivation of the Pink1 or DJ-1 genes in the rat produces progressive neurodegeneration and early behavioral deficits, suggesting that these recessive genes may be essential for the survival of dopaminergic neurons in the substantia nigra (SN). These MJFF-generated novel rat models will assist the research community to elucidate the mechanisms by which these recessive genes produce PD pathology and potentially aid in therapeutic development.
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- 2014
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15. Creation and preliminary characterization of a Tp53 knockout rat
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Aaron McCoy, Cynthia L. Besch-Williford, Craig L. Franklin, Edward J. Weinstein, and Xiaoxia Cui
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Medicine ,Pathology ,RB1-214 - Abstract
SUMMARY The tumor suppressor TP53 plays a crucial role in cancer biology, and the TP53 gene is the most mutated gene in human cancer. Trp53 knockout mouse models have been widely used in cancer etiology studies and in search for a cure of cancer with some limitations that other model organisms might help overcome. Via pronuclear microinjection of zinc finger nucleases (ZFNs), we created a Tp53 knockout rat that contains an 11-bp deletion in exon 3, resulting in a frameshift and premature terminations in the open reading frame. In cohorts of 25 homozygous (Tp53Δ11/Δ11), 37 heterozygous (Tp53Δ11/+) and 30 wild-type rats, the Tp53Δ11/Δ11 rats lived an average of 126 days before death or removal from study because of clinical signs of abnormality or formation of tumors. Half of Tp53Δ11/+ were removed from study by 1 year of age because of tumor formation. Both Tp53Δ11/+ and Tp53Δ11/Δ11 rats developed a wide spectrum of tumors, most commonly sarcomas. Interestingly, there was a strikingly high incidence of brain lesions, especially in Tp53Δ11/Δ11 animals. We believe that this mutant rat line will be useful in studying cancer types rarely observed in mice and in carcinogenicity assays for drug development.
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- 2013
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16. GmCYP82A3, a Soybean Cytochrome P450 Family Gene Involved in the Jasmonic Acid and Ethylene Signaling Pathway, Enhances Plant Resistance to Biotic and Abiotic Stresses.
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Qiang Yan, Xiaoxia Cui, Shuai Lin, Shuping Gan, Han Xing, and Daolong Dou
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Medicine ,Science - Abstract
The cytochrome P450 monooxygenases (P450s) represent a large and important enzyme superfamily in plants. They catalyze numerous monooxygenation/hydroxylation reactions in biochemical pathways, P450s are involved in a variety of metabolic pathways and participate in the homeostasis of phytohormones. The CYP82 family genes specifically reside in dicots and are usually induced by distinct environmental stresses. However, their functions are largely unknown, especially in soybean (Glycine max L.). Here, we report the function of GmCYP82A3, a gene from soybean CYP82 family. Its expression was induced by Phytophthora sojae infection, salinity and drought stresses, and treatment with methyl jasmonate (MeJA) or ethephon (ETH). Its expression levels were consistently high in resistant cultivars. Transgenic Nicotiana benthamiana plants overexpressing GmCYP82A3 exhibited strong resistance to Botrytis cinerea and Phytophthora parasitica, and enhanced tolerance to salinity and drought stresses. Furthermore, transgenic plants were less sensitive to jasmonic acid (JA), and the enhanced resistance was accompanied with increased expression of the JA/ET signaling pathway-related genes.
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- 2016
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17. Tissue Specific Expression of Cre in Rat Tyrosine Hydroxylase and Dopamine Active Transporter-Positive Neurons.
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Zhenyi Liu, Andrew Brown, Dan Fisher, Yumei Wu, Joe Warren, and Xiaoxia Cui
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Medicine ,Science - Abstract
The rat is a preferred model system over the mouse for neurological studies, and cell type-specific Cre expression in the rat enables precise ablation of gene function in neurons of interest, which is especially valuable for neurodegenerative disease modeling and optogenetics. Yet, few such Cre rats are available. Here we report the characterization of two Cre rats, tyrosine hydroxylase (TH)-Cre and dopamine active transporter (DAT or Slc6a3)-Cre, by using a combination of immunohistochemistry (IHC) and mRNA fluorescence in situ hybridization (FISH) as well as a fluorescent reporter for Cre activity. We detected Cre expression in expected neurons in both Cre lines. Interestingly, we also found that in Th-Cre rats, but not DAT-Cre rats, Cre is expressed in female germ cells, allowing germline excision of the floxed allele and hence the generation of whole-body knockout rats. In summary, our data demonstrate that targeted integration of Cre cassette lead to faithful recapitulation of expression pattern of the endogenous promoter, and mRNA FISH, in addition to IHC, is an effective method for the analysis of the spatiotemporal gene expression patterns in the rat brain, alleviating the dependence on high quality antibodies that are often not available against rat proteins. The Th-Cre and the DAT-Cre rat lines express Cre in selective subsets of dopaminergic neurons and should be particularly useful for researches on Parkinson's disease.
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- 2016
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18. Molecular Characterization and Functional Analysis of a Novel Calcium-Dependent Protein Kinase 4 from Eimeria tenella.
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Ziwen Wang, Bing Huang, Hui Dong, Qiping Zhao, Shunhai Zhu, Weili Xia, Shuaibin Xu, Yuxiang Xie, Xiaoxia Cui, Min Tang, Qifei Men, Zhiyuang Yang, Cong Li, Xuelong Zhu, and Hongyu Han
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Medicine ,Science - Abstract
Eimeria tenella is an obligate intracellular parasite that actively invades cecal epithelial cells of chickens. The basis of cell invasion is not completely understood, but some key molecules of host cell invasion have been discovered. This paper investigated the characteristics of calcium-dependent protein kinase 4 (EtCDPK4), a critical molecule in E. tenella invasion of host cells. A full-length EtCDPK4 cDNA was identified from E. tenella using rapid amplification of cDNA ends. EtCDPK4 had an open reading frame of 1803 bp encoding a protein of 600 amino acids. Quantitative real-time PCR and western blotting were used to explore differences in EtCDPK4 transcription and translation in four developmental stages of E. tenella. EtCDPK4 was expressed at higher levels in sporozoites, but translation was higher in second-generation merozoites. In vitro invasion inhibition assays explored whether EtCDPK4 was involved in invasion of DF-1 cells by E. tenella sporozoites. Polyclonal antibodies against recombinant EtCDPK4 (rEtCDPK4) inhibited parasite invasion, decreasing it by approximately 52%. Indirect immunofluorescence assays explored EtCDPK4 distribution during parasite development after E. tenella sporozoite invasion of DF-1 cells in vitro. The results showed that EtCDPK4 might be important in sporozoite invasion and development. To analyze EtCDPK4 functional domains according to the structural characteristics of EtCDPK4 and study the kinase activity of rEtCDPK4, an in vitro phosphorylation system was established. We verified that rEtCDPK4 was a protein kinase that was completely dependent on Ca2+ for enzyme activity. Specific inhibitors of rEtCDPK4 activity were screened by kinase activity in vitro. Some specific inhibitors were applied to assays of DF-1 cell invasion by E. tenella sporozoites to confirm that the inhibitors functioned in vitro. W-7, H-7, H-89, and myristoylated peptide inhibited DF-1 invasion by E. tenella sporozoites. The experimental results showed that EtCDPK4 may be involved in E. tenella invasion of chicken cecal epithelial cells.
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- 2016
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19. Retrohoming of a Mobile Group II Intron in Human Cells Suggests How Eukaryotes Limit Group II Intron Proliferation.
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David M Truong, F Curtis Hewitt, Joseph H Hanson, Xiaoxia Cui, and Alan M Lambowitz
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Genetics ,QH426-470 - Abstract
Mobile bacterial group II introns are evolutionary ancestors of spliceosomal introns and retroelements in eukaryotes. They consist of an autocatalytic intron RNA (a "ribozyme") and an intron-encoded reverse transcriptase, which function together to promote intron integration into new DNA sites by a mechanism termed "retrohoming". Although mobile group II introns splice and retrohome efficiently in bacteria, all examined thus far function inefficiently in eukaryotes, where their ribozyme activity is limited by low Mg2+ concentrations, and intron-containing transcripts are subject to nonsense-mediated decay (NMD) and translational repression. Here, by using RNA polymerase II to express a humanized group II intron reverse transcriptase and T7 RNA polymerase to express intron transcripts resistant to NMD, we find that simply supplementing culture medium with Mg2+ induces the Lactococcus lactis Ll.LtrB intron to retrohome into plasmid and chromosomal sites, the latter at frequencies up to ~0.1%, in viable HEK-293 cells. Surprisingly, under these conditions, the Ll.LtrB intron reverse transcriptase is required for retrohoming but not for RNA splicing as in bacteria. By using a genetic assay for in vivo selections combined with deep sequencing, we identified intron RNA mutations that enhance retrohoming in human cells, but
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- 2015
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20. Characterization of defects in ion transport and tissue development in cystic fibrosis transmembrane conductance regulator (CFTR)-knockout rats.
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Katherine L Tuggle, Susan E Birket, Xiaoxia Cui, Jeong Hong, Joe Warren, Lara Reid, Andre Chambers, Diana Ji, Kevin Gamber, Kengyeh K Chu, Guillermo Tearney, Li Ping Tang, James A Fortenberry, Ming Du, Joan M Cadillac, David M Bedwell, Steven M Rowe, Eric J Sorscher, and Michelle V Fanucchi
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Medicine ,Science - Abstract
Animal models for cystic fibrosis (CF) have contributed significantly to our understanding of disease pathogenesis. Here we describe development and characterization of the first cystic fibrosis rat, in which the cystic fibrosis transmembrane conductance regulator gene (CFTR) was knocked out using a pair of zinc finger endonucleases (ZFN). The disrupted Cftr gene carries a 16 base pair deletion in exon 3, resulting in loss of CFTR protein expression. Breeding of heterozygous (CFTR+/-) rats resulted in Mendelian distribution of wild-type, heterozygous, and homozygous (CFTR-/-) pups. Nasal potential difference and transepithelial short circuit current measurements established a robust CF bioelectric phenotype, similar in many respects to that seen in CF patients. Young CFTR-/- rats exhibited histological abnormalities in the ileum and increased intracellular mucus in the proximal nasal septa. By six weeks of age, CFTR-/- males lacked the vas deferens bilaterally. Airway surface liquid and periciliary liquid depth were reduced, and submucosal gland size was abnormal in CFTR-/- animals. Use of ZFN based gene disruption successfully generated a CF animal model that recapitulates many aspects of human disease, and may be useful for modeling other CF genotypes, including CFTR processing defects, premature truncation alleles, and channel gating abnormalities.
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- 2014
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21. An Enclave-based TEE for SE-in-SoC in RISC-V Industry.
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Xuanle Ren and Xiaoxia Cui
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- 2022
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22. Hydrogen-Related Anti-Radiation Effect and its Suppression Mechanism in Er3+/Al3+/Ge4+ Co-doped Silica Fibers
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Gencheng Wang, Shengfei She, Yuting Zhang, Yanan Wang, Miao Li, Zhenchao Ma, Yan Zhang, Song Gao, Xiaoxia Cui, Zhe Li, Chaoqi Hou, and Haitao Guo
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Atomic and Molecular Physics, and Optics - Published
- 2023
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23. Bi-allelic CAMSAP1 variants cause a clinically recognizable neuronal migration disorder
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Reham, Khalaf-Nazzal, James, Fasham, Katherine A, Inskeep, Lauren E, Blizzard, Joseph S, Leslie, Matthew N, Wakeling, Nishanka, Ubeyratna, Tadahiro, Mitani, Jennifer L, Griffith, Wisam, Baker, Fida', Al-Hijawi, Karen C, Keough, Alper, Gezdirici, Loren, Pena, Christine G, Spaeth, Peter D, Turnpenny, Joseph R, Walsh, Randall, Ray, Amber, Neilson, Evguenia, Kouranova, Xiaoxia, Cui, David T, Curiel, Davut, Pehlivan, Zeynep Coban, Akdemir, Jennifer E, Posey, James R, Lupski, William B, Dobyns, Rolf W, Stottmann, Andrew H, Crosby, and Emma L, Baple
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Mice, Knockout ,Mice ,Phenotype ,Tubulin ,Genetics ,Humans ,Animals ,Classical Lissencephalies and Subcortical Band Heterotopias ,Lissencephaly ,Nervous System Malformations ,Microtubule-Associated Proteins ,Alleles ,Genetics (clinical) - Abstract
Non-centrosomal microtubules are essential cytoskeletal filaments that are important for neurite formation, axonal transport, and neuronal migration. They require stabilization by microtubule minus-end-targeting proteins including the CAMSAP family of molecules. Using exome sequencing on samples from five unrelated families, we show that bi-allelic CAMSAP1 loss-of-function variants cause a clinically recognizable, syndromic neuronal migration disorder. The cardinal clinical features of the syndrome include a characteristic craniofacial appearance, primary microcephaly, severe neurodevelopmental delay, cortical visual impairment, and seizures. The neuroradiological phenotype comprises a highly recognizable combination of classic lissencephaly with a posterior more severe than anterior gradient similar to PAFAH1B1(LIS1)-related lissencephaly and severe hypoplasia or absence of the corpus callosum; dysplasia of the basal ganglia, hippocampus, and midbrain; and cerebellar hypodysplasia, similar to the tubulinopathies, a group of monogenic tubulin-associated disorders of cortical dysgenesis. Neural cell rosette lineages derived from affected individuals displayed findings consistent with these phenotypes, including abnormal morphology, decreased cell proliferation, and neuronal differentiation. Camsap1-null mice displayed increased perinatal mortality, and RNAScope studies identified high expression levels in the brain throughout neurogenesis and in facial structures, consistent with the mouse and human neurodevelopmental and craniofacial phenotypes. Together our findings confirm a fundamental role of CAMSAP1 in neuronal migration and brain development and define bi-allelic variants as a cause of a clinically distinct neurodevelopmental disorder in humans and mice.
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- 2022
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24. Effect of residual chlorine on fluorescence emission of Dy 3+ doped chalcogenide glasses with low gallium content
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Jian Cui, Yantao Xu, Xusheng Xiao, Xiaoxia Cui, Chengzhen Liu, and Haitao Guo
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Materials Chemistry ,Ceramics and Composites - Published
- 2022
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25. In situ epitaxial growth of blocking structure in mixed-halide wide-band-gap perovskites for efficient photovoltaics
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Zhuoxin Li, Xing Li, Xianggang Chen, Xiaoxia Cui, Chunlin Guo, Xuzheng Feng, Dongxu Ren, Yaqi Mo, Miao Yang, Huiwei Huang, Rui Jia, Xuepeng Liu, Liyuan Han, Songyuan Dai, and Molang Cai
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General Energy - Published
- 2023
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26. Floxing by Electroporating Single-Cell Embryos with Two CRISPR RNPs and Two ssODNs
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Mia Wallace, J. Michael White, Evgenea Kouranova, Zi Teng Wang, and Xiaoxia Cui
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- 2023
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27. Enhancing photocatalytic C-O/N coupling reaction over covalent organic frameworks by pull-push electron group regulation
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Ce Song, Teng Yan, Xiaoxia Cui, Hao Chen, Ranfeng Ye, and Xiaohu Zhang
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Process Chemistry and Technology ,Catalysis - Published
- 2023
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28. The mutual influence between rare earth element doping and femtosecond laser-induced effects in Ga-As-Sb-S chalcogenide glass
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Chaoqi Hou, L. Liu, Fengyi Chen, Xiaoxia Cui, Xusheng Xiao, Haitao Guo, Jian Cui, and Yantao Xu
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010302 applied physics ,Materials science ,business.industry ,Process Chemistry and Technology ,Doping ,Chalcogenide glass ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Laser ,Microstructure ,01 natural sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,law.invention ,Wavelength ,law ,0103 physical sciences ,Femtosecond ,Materials Chemistry ,Ceramics and Composites ,Optoelectronics ,0210 nano-technology ,Luminescence ,Absorption (electromagnetic radiation) ,business - Abstract
Femtosecond laser-induced damage thresholds (LIDTs) of Ga0.8As29.2Sb10S60 glasses doped with gradient Tm3+ concentrations and the effects of laser-induced damage on the glass' luminescence properties were studied in this work. Tm3+ doping in the glass considerably decreased the LIDT, from 3394.8 to 1881.8 mJ/cm2, when the Tm3+ concentration increased from 0 to 5000 ppmw. This was related to the absorption of Tm3+ around the femtosecond laser's wavelength and microstructural changes caused by the Tm3+ doping. On the other hand, the femtosecond laser changed the glass matrix's elemental distribution and microstructure. Although the laser damaged the glass, the luminescence properties were barely affected. Based on the changes, femtosecond laser damage mechanism of chalcogenide glass doped with rare earth element was firstly proposed.
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- 2021
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29. Oropouche orthobunyavirus infection is mediated by the cellular host factor Lrp1
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Madeline M. Schwarz, David A. Price, Safder S. Ganaie, Annie Feng, Nawneet Mishra, Ryan M. Hoehl, Farheen Fatma, Sarah H. Stubbs, Sean P.J. Whelan, Xiaoxia Cui, Takeshi Egawa, Daisy W. Leung, Gaya K. Amarasinghe, and Amy L. Hartman
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Gene Knockout Techniques ,Mice ,Orthobunyavirus ,Multidisciplinary ,Animals ,Humans ,South America ,Virus Internalization ,Bunyaviridae Infections ,Low Density Lipoprotein Receptor-Related Protein-1 - Abstract
Oropouche orthobunyavirus (OROV; Peribunyaviridae ) is a mosquito-transmitted virus that causes widespread human febrile illness in South America, with occasional progression to neurologic effects. Host factors mediating the cellular entry of OROV are undefined. Here, we show that OROV uses the host protein low-density lipoprotein–related protein 1 (Lrp1) for efficient cellular infection. Cells from evolutionarily distinct species lacking Lrp1 were less permissive to OROV infection than cells with Lrp1. Treatment of cells with either the high-affinity Lrp1 ligand receptor-associated protein (RAP) or recombinant ectodomain truncations of Lrp1 significantly reduced OROV infection. In addition, chimeric vesicular stomatitis virus (VSV) expressing OROV glycoproteins (VSV-OROV) bound to the Lrp1 ectodomain in vitro. Furthermore, we demonstrate the biological relevance of the OROV-Lrp1 interaction in a proof-of-concept mouse study in which treatment of mice with RAP at the time of infection reduced tissue viral load and promoted survival from an otherwise lethal infection. These results with OROV, along with the recent finding of Lrp1 as an entry factor for Rift Valley fever virus, highlight the broader significance of Lrp1 in cellular infection by diverse bunyaviruses. Shared strategies for entry, such as the critical function of Lrp1 defined here, provide a foundation for the development of pan-bunyaviral therapeutics.
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- 2022
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30. Yb/Ce Codoped Aluminosilicate Fiber With High Laser Stability for Multi-kW Level Laser
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Song Gao, Li Yizhao, Chang Chang, Zhe Li, Xusheng Xiao, Haitao Guo, Shengfei She, Jinkun Zheng, Zhenyu Zhou, Chaoqi Hou, Yan Zhang, Bo Liu, Xiaoxia Cui, Lin Mei, and Yantao Xu
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Core (optical fiber) ,Materials science ,law ,Fiber laser ,Photodarkening ,Slope efficiency ,Analytical chemistry ,Fiber ,Laser power scaling ,Refractive index profile ,Laser ,Atomic and Molecular Physics, and Optics ,law.invention - Abstract
Further power scaling and stable laser performance were demonstrated in the Yb/Ce codoped aluminosilicate fiber fabricated through low-temperature chelate gas phase deposition technique. The molar ratio of Ce/Yb was designed and optimized to be 0.58 for low background loss, effective photodarkening suppression, and no additional thermal load. The background loss of this active fiber was 4.7 dB/km and its photodarkening loss at equilibrium was as low as 3.9 dB/m at 633 nm. Benefiting from low-temperature deposition technique, the fiber showed uniform core composition devoid of clustering and central ‘dip’ of refractive index profile and 0.19 mol% Yb2O3 was homogeneously dissolved into the fiber core plus with 0.41 mol% Al2O3, 0.11 mol% Ce2O3, and 0.32 mol% SiF4. Based on a master oscillator power amplifier laser setup, 5.04 kW laser output at 1079.80 nm was achieved with a slope efficiency of 81.1%. Stabilized at 5kW-level laser for over 60 minutes, the output power presented almost no power degradation, directly confirming a noticeable photodarkening mitigation.
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- 2020
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31. Meta‐analysis of immune‐related adverse events of immune checkpoint inhibitor therapy in cancer patients
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Dingding Zhang, Xiaoxia Cui, Peng Song, and Li Zhang
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0301 basic medicine ,Pulmonary and Respiratory Medicine ,Oncology ,Male ,medicine.medical_specialty ,Durvalumab ,Ipilimumab ,Subgroup analysis ,Pembrolizumab ,lcsh:RC254-282 ,Avelumab ,03 medical and health sciences ,0302 clinical medicine ,Atezolizumab ,Internal medicine ,Neoplasms ,medicine ,Humans ,Immune Checkpoint Inhibitors ,Cancer ,immune checkpoint inhibitor (ICI) ,business.industry ,General Medicine ,Original Articles ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,030104 developmental biology ,030220 oncology & carcinogenesis ,immune‐related adverse events (irAEs) ,Original Article ,Female ,Nivolumab ,business ,Tremelimumab ,medicine.drug - Abstract
Background Immune checkpoint inhibitors (ICIs) have significant clinical efficacy in the treatment of non‐small cell lung cancer (NSCLC); however, the incidence of immune‐related adverse events (irAEs) of up to 50% has prevented their widespread use. With the increase in the use of ICIs alone or as combination therapy, clinicians are required to have a better understanding of irAEs and be able to manage them systematically. In this study, we aimed to assess the incidence of irAEs associated with ICIs. Methods We searched PubMed, Embase, and the Web of Science databases, and also included relevant literature references to widen our search. The relevant data with inclusion criteria were performed using RevMan 3.6.0 for meta‐analysis. We undertook a systematic literature search which included published data up to December 2019. Results Overall, 147 articles and 23 761 cancer patients with 11 different ICI treatment‐related (grade 1–5 and 3–5) irAEs were included in the study. There were 46 articles on pembrolizumab (6598 patients), 27 on nivolumab (3576 patients), 13 on atezolizumab (2787 patients), 12 on avelumab (3213 patients), 10 on durvalumab (1780 patients), 22 on ipilimumab (4067 patients), eight on tremelimumab (1158 patients), three on JS001 (223 patients), four on camrelizumab (SHR‐1210) (178 patients), one on sintilimab (96 patients), and one on cemiplimab (85 patients). Grade 1–5 irAEs were: cytotoxic T lymphocyte antigen 4 (CTLA‐4) (82.87%), programmed cell death 1 (PD‐1) (71.89%), and programmed cell death ligand‐1 (PD‐L1) (58.95%). Subgroup analysis was: Avelumab (44.53%), durvalumab (66.63%), pembrolizumab (67.25%), atezolizumab (68.77%), nivolumab (76.25%), Ipilimumab (82.18%), and tremelimumab (86.78%). Grade 3–5 irAEs were: CTLA‐4 (27.22%), PD‐1(17.29%), and PD‐L1(17.29%). Subgroup analysis was: Avelumab (5.86%), durvalumab (13.43%), atezolizumab (14.45%), nivolumab (15.72%), pembrolizumab (16.58%), tremelimumab (22.04%), and ipilimumab (28.27%). Conclusions This meta‐analysis confirmed that anti‐PD‐1 and anti‐PD‐L1 inhibitors had a lower incidence of irAEs compared with anti‐CTLA‐4 inhibitors., This becomes very challenging when oncologists must make decisions among many therapies with similar efficacy and / or specific toxicity characteristics. The advantage of meta‐analysis in this study is that it can reduce publication bias and identify obvious results with higher efficiency. Due to the combination of smaller and larger studies, the effective sample size will be greatly increased. The results of this meta‐analysis can help oncologists choose the type of immune checkpoint inhibitor when deciding on an ICI plan and when planning to use ICI for future research.
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- 2020
32. NLCIPS: Non-Small Cell Lung Cancer Immunotherapy Prognosis Score
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Xiaotong Zhang, Xiaoyan Si, Li Zhang, Peng Song, Dongliang Yang, Xiaoxia Cui, and Hanping Wang
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0301 basic medicine ,Oncology ,medicine.medical_specialty ,Univariate analysis ,education.field_of_study ,Multivariate statistics ,Multivariate analysis ,Proportional hazards model ,business.industry ,Population ,Nomogram ,medicine.disease ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Internal medicine ,medicine ,Neutrophil to lymphocyte ratio ,education ,business ,Lung cancer - Abstract
Introduction Currently in China, many immune checkpoint inhibitors (ICIs) have been approved for the treatment of non-small cell lung cancer (NSCLC). Some patients can not benefit from ICIs, and approximately 50% of patients have immunotherapy-related toxicity. Therefore, it is necessary to monitor carefully the selection of immunotherapy population using biomarkers to maximize the benefit of patients with NSCLC. Methods A prospective analysis was performed on patients with advanced NSCLC who were treated with ICIS at our hospital from March 2018 to June 2019, up to the follow-up deadline of December 31, 2019. The primary end points were overall survival (OS) and progression-free survival (PFS), and the secondary end points were objective response rate and disease control rate. A lasso regression was used for the univariate analysis, and Cox regression analysis was used for the multivariate analysis. An efficacy prediction line chart was developed. Results A total of 63 patients were included in the study. The median PFS was 7.0 months (95% CI, 5.0-11.0) and did not reach the median OS. According to the lasso regression, significant univariate factors were smoking index, PD-ligand 1 expression, and neutrophil to lymphocyte ratio (NLR). According to the multivariate analysis, the Cox proportional hazards model showed that smoking index and NLR are independent predictors of PFS in immunotherapy. A model comprised of independent predictors was developed based on a multivariate logical analysis of the main cohort-non-small cell lung cancer immunotherapy prognosis score. This model is shown as a nomogram with a C-index of 0.801 (95% CI, 0.744, 0.858), which has high prediction accuracy. Conclusion This predictive model, including NLR and smoking index, can achieve a 1-year PFS in immunotherapy of patients. PD-1 inhibitors have been demonstrated to be effective and safe in the clinical treatment of patients with NSCLC.
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- 2020
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33. Relationship between the efficacy of immunotherapy and characteristics of specific tumor mutation genes in non‐small cell lung cancer patients
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Hanping Wang, Xiaotong Zhang, Xiaoxia Cui, Xiaoyan Si, Peng Song, Li Zhang, and Dongliang Yang
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0301 basic medicine ,Oncology ,Lung Neoplasms ,medicine.medical_treatment ,Immune checkpoint inhibitor ,Gene mutation ,medicine.disease_cause ,0302 clinical medicine ,Antineoplastic Agents, Immunological ,Carcinoma, Non-Small-Cell Lung ,Medicine ,Prospective Studies ,education.field_of_study ,biology ,General Medicine ,Prognosis ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Gene Expression Regulation, Neoplastic ,Survival Rate ,030220 oncology & carcinogenesis ,Original Article ,KRAS ,Immunotherapy ,Pulmonary and Respiratory Medicine ,non‐small cell lung cancer ,medicine.medical_specialty ,Population ,lcsh:RC254-282 ,03 medical and health sciences ,Internal medicine ,PD-L1 ,Biomarkers, Tumor ,PTEN ,Humans ,education ,Lung cancer ,Survival analysis ,Response Evaluation Criteria in Solid Tumors ,business.industry ,PD‐1 ,Original Articles ,medicine.disease ,030104 developmental biology ,PD‐L1 ,Mutation ,biology.protein ,business ,Follow-Up Studies - Abstract
Background Immune checkpoint inhibitors (ICIs) have greatly improved the prognosis and overall management of non‐small cell lung cancer (NSCLC) patients, but in the long term less than 20% of patients benefit from treatment with ICIs. Therefore, it is necessary to guide the choice of immunotherapy population through biomarkers in order to maximize the benefit for NSCLC patients. This article mainly explores the relationship between the efficacy of immunotherapy and specific tumor mutation gene characteristics in an NSCLC population. Methods This was a prospective analysis of patients with advanced NSCLC who visited the Department of Respiratory Medicine of Peking Union Medical College Hospital from March 2018 to June 2019 and were instructed to use PD‐1 inhibitors. The follow‐up deadline was 31 December 2019. The tumor pathological tissues were tested for tumor mutation genes, and the patients were evaluated for efficacy according to RECIST 1.1. The patients were divided into the durable benefit group (DCB) and the nonsustainable benefit group (NDB). DCB/NDB was used as the outcome variable. Various statistics methods were used to explore the independent predictors of long‐term benefits associated with immunotherapy and to draw a progression‐free survival curve for the relevant predictors. Results A total of 44 patients were examined for tumor mutation genes in pathological tissues; 20 in the DCB group and 24 in the NDB group. Specific gene mutations occurred in TP53 38.64%, KRAS 31.82%, EGFR 20.45%, BRCA 20.45%, ERBB (excluding EGFR) 18.18%, PTEN 15.91%, CDK4/6 13.64%, POLE 11.36%, MET 11.36%, PIK3CA 9.10%, FGFR 9.10%, BRAF 9.10%, JAK 9.10%, ALK 6.82%, POLD1 4.55%, BLM 4.55%. Chi‐square test results showed that there were statistically significant differences between DCB and NDB groups with eight mutations such as KRAS. Logistic regression showed that the KRAS mutation was statistically significant (P
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- 2020
34. Application of rare earth-doped nanoparticles in biological imaging and tumor treatment
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Xiaoxia Cui, Qi Fan, Guangwei Zhang, Haitao Guo, Bo Peng, and Yantao Xu
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Fluorescence-lifetime imaging microscopy ,Tumor targeting ,Photothermal Therapy ,Rare earth ,Biomedical Engineering ,Nanoparticle ,Biocompatible Materials ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Biomaterials ,Drug Delivery Systems ,Neoplasms ,Animals ,Humans ,Chemistry ,Optical Imaging ,Tumor therapy ,021001 nanoscience & nanotechnology ,Magnetic Resonance Imaging ,0104 chemical sciences ,Nanomedicine ,Luminescent Measurements ,Drug delivery ,Nanoparticles ,Metals, Rare Earth ,Tomography, X-Ray Computed ,0210 nano-technology ,Biological imaging ,Preclinical imaging ,Biomedical engineering - Abstract
Rare earth-doped nanoparticles have been widely used in disease diagnosis, drug delivery, tumor therapy, and bioimaging. Among various bioimaging methods, the fluorescence imaging technology based on the rare earth-doped nanoparticles can visually display the cell activity and lesion evolution in living animals, which is a powerful tool in biological technology and has being widely applied in medical and biological fields. Especially in the band of near infrared (700–1700 nm), the emissions show the characteristics of deep penetration due to low absorption, low photon scattering, and low autofluorescence interference. Furthermore, the rare earth-doped nanoparticles can be endowed with the water solubility, biocompatibility, drug-loading ability, and the targeting ability for different tumors by surface functionalization. This confirms its potential in the cancer diagnosis and treatment. In this review, we summarized the recent progress in the application of rare earth-doped nanoparticles in the field of bioimaging and tumor treatment. The luminescent mechanism, properties, and structure design were also discussed.
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- 2020
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35. PDA modified NIR-II NaEr
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Weifan, Zhan, Bin, Zhao, Xiaoxia, Cui, Junsong, Liu, Xusheng, Xiao, Yantao, Xu, Shengfei, She, Chaoqi, Hou, and Haitao, Guo
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Mice ,Indoles ,Polymers ,Animals ,Nanoparticles ,Phototherapy ,Fluorescent Dyes - Abstract
Polydopamine (PDA)-modified NaEr
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- 2022
36. Lrp1 is a host entry factor for Rift Valley Fever Virus
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Austin B. Moyle, Daisy W. Leung, Safder Ganaie, Michael R. Kujawa, Devin A. Boyles, Xiaoxia Cui, Takeshi Egawa, Aidan R. Cole, David A. Price, Wenjie Wang, Monica F. Sentmanat, Michael L. Gross, Ryan M. Hoehl, Herbert W. Virgin, Gaya K. Amarasinghe, Sachdev S. Sidhu, Amy L. Hartman, John G. Doench, Cynthia M. McMillen, Anita K. McElroy, Annie X. Feng, Matthew Demers, Sean P. J. Whelan, Joan Teyra, Tom J. Brett, Anthony Orvedahl, Shane Miersch, Nawneet Mishra, Joseph R. Albe, Madeline M. Schwarz, Nicole D. Wagner, Zachary T. Koenig, Lia Cardarelli, and Sarah H. Stubbs
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Protein Denaturation ,Glycosylation ,Rift Valley Fever ,Mutant ,Ligands ,General Biochemistry, Genetics and Molecular Biology ,Article ,Mice ,Viral entry ,Antibody Specificity ,Heat shock protein ,CRISPR ,Humans ,Animals ,LDL-Receptor Related Protein-Associated Protein ,Cells, Cultured ,Glycoproteins ,Glycosaminoglycans ,Membrane Glycoproteins ,biology ,Base Sequence ,Host (biology) ,Cell Membrane ,Brain ,Virus Internalization ,Rift Valley fever virus ,LRP1 ,Virology ,Cell culture ,Host-Pathogen Interactions ,biology.protein ,Receptors, Virus ,Antibody ,CRISPR-Cas Systems ,Low Density Lipoprotein Receptor-Related Protein-1 ,Protein Binding - Abstract
Rift Valley Fever Virus (RVFV) is a zoonotic pathogen with pandemic potential. RVFV entry is mediated by the viral glycoprotein (Gn), but host entry factors remain poorly defined. Our genome-wide CRISPR screen identified low-density lipoprotein receptor-related protein 1 (mouse Lrp1/human LRP1), heat shock protein (Grp94), and receptor associated protein (RAP) as critical host factors for RVFV infection. RVFV Gn directly binds to specific clusters Lrp1 and is glycosylation independent. Exogenous addition of murine RAP domain 3 (mRAP(D3)) and anti-Lrp1 antibodies neutralize RVFV infection in taxonomically diverse cell lines. Mice treated with mRAP(D3) and infected with pathogenic RVFV are protected from disease and death. A mutant mRAPD3 that binds Lrp1 weakly failed to protect from RVFV infection. Altogether, these data support Lrp1 as a host entry factor for RVFV infection and defines a new target to limit RVFV infections.
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- 2021
37. Structured active fiber fabrication and characterization of a chemically high‐purified Dy 3+ ‐doped chalcogenide glass
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Shixun Dai, Xunsi Wang, Xiaoxia Cui, Yantao Xu, Xiaogang Liu, Haitao Guo, Jian Cui, and Xusheng Xiao
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Materials science ,Chemical engineering ,Doping ,Materials Chemistry ,Ceramics and Composites ,Mid infrared ,Single-mode optical fiber ,Chalcogenide glass ,Fiber fabrication ,Fluorescence ,Characterization (materials science) - Published
- 2019
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38. GmWRKY40, a member of the WRKY transcription factor genes identified from Glycine max L., enhanced the resistance to Phytophthora sojae
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Shuping Gan, Jinming Zhao, Dong Xue, Haitang Wang, Han Xing, Qiang Yan, Xiaoxia Cui, and Na Guo
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Phytophthora ,Two-hybrid screening ,Plant Science ,Biology ,chemistry.chemical_compound ,Phytophthora sojae ,RNA interference ,Gene Expression Regulation, Plant ,lcsh:Botany ,Amino Acid Sequence ,GmWRKY40 ,Gene ,Abscisic acid ,Transcription factor ,Disease Resistance ,Plant Diseases ,Plant Proteins ,Methyl jasmonate ,food and beverages ,Yeast two-hybrid ,biology.organism_classification ,WRKY protein domain ,Cell biology ,lcsh:QK1-989 ,chemistry ,Glycine max (L.) Merr ,Soybeans ,Soybean hairy roots ,Sequence Alignment ,Research Article ,Transcription Factors - Abstract
Background The WRKY proteins are a superfamily of transcription factors and members play essential roles in the modulation of diverse physiological processes, such as growth, development, senescence and response to biotic and abiotic stresses. However, the biological roles of the majority of the WRKY family members remains poorly understood in soybean relative to the research progress in model plants. Results In this study, we identified and characterized GmWRKY40, which is a group IIc WRKY gene. Transient expression analysis revealed that the GmWRKY40 protein is located in the nucleus of plant cells. Expression of GmWRKY40 was strongly induced in soybean following infection with Phytophthora sojae, or treatment with methyl jasmonate, ethylene, salicylic acid, and abscisic acid. Furthermore, soybean hairy roots silencing GmWRKY40 enhanced susceptibility to P. sojae infection compared with empty vector transgenic roots. Moreover, suppression of GmWRKY40 decreased the accumulation of reactive oxygen species (ROS) and modified the expression of several oxidation-related genes. Yeast two-hybrid experiment combined with RNA-seq analysis showed that GmWRKY40 interacted with 8 JAZ proteins with or without the WRKY domain or zinc-finger domain of GmWRKY40, suggesting there were different interaction patterns among these interacted proteins. Conclusions Collectively, these results suggests that GmWRKY40 functions as a positive regulator in soybean plants response to P. sojae through modulating hydrogen peroxide accumulation and JA signaling pathway.
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- 2019
39. A Toolbox to Characterize Human Induced Pluripotent Stem Cell–Derived Kidney Cell Types and Organoids
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Sanjay Jain, Amber Neilson, Lakshi T. Starks, Sean B. Wilson, Michelle Scurr, H. Siebe Spijker, Ker Sin Tan, Xiaoxia Cui, Jessica M. Vanslambrouck, Melissa H. Little, Joanne Y.-C. Soo, and Sara E. Howden
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0301 basic medicine ,Organogenesis ,Induced Pluripotent Stem Cells ,Kidney development ,General Medicine ,Biology ,Cell sorting ,Kidney ,Cell biology ,Organoids ,Transplantation ,Mice ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Directed differentiation ,Nephrology ,Organoid ,Animals ,Female ,Progenitor cell ,Stem cell ,Induced pluripotent stem cell ,Rapid Communication ,030217 neurology & neurosurgery - Abstract
Background The generation of reporter lines for cell identity, lineage, and physiologic state has provided a powerful tool in advancing the dissection of mouse kidney morphogenesis at a molecular level. Although use of this approach is not an option for studying human development in vivo, its application in human induced pluripotent stem cells (iPSCs) is now feasible. Methods We used CRISPR/Cas9 gene editing to generate ten fluorescence reporter iPSC lines designed to identify nephron progenitors, podocytes, proximal and distal nephron, and ureteric epithelium. Directed differentiation to kidney organoids was performed according to published protocols. Using immunofluorescence and live confocal microscopy, flow cytometry, and cell sorting techniques, we investigated organoid patterning and reporter expression characteristics. Results Each iPSC reporter line formed well patterned kidney organoids. All reporter lines showed congruence of endogenous gene and protein expression, enabling isolation and characterization of kidney cell types of interest. We also demonstrated successful application of reporter lines for time-lapse imaging and mouse transplantation experiments. Conclusions We generated, validated, and applied a suite of fluorescence iPSC reporter lines for the study of morphogenesis within human kidney organoids. This fluorescent iPSC reporter toolbox enables the visualization and isolation of key populations in forming kidney organoids, facilitating a range of applications, including cellular isolation, time-lapse imaging, protocol optimization, and lineage-tracing approaches. These tools offer promise for enhancing our understanding of this model system and its correspondence with human kidney morphogenesis.
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- 2019
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40. Evaluation of Lung Cancer and Neuroendocrine Neoplasm in a Single Scan by Targeting Both Somatostatin Receptor and Integrin αvβ3
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Shaobo Yao, Li Zhang, Huangying Tan, Zhaohui Zhu, Hanping Wang, Yumin Zheng, Jie Zang, and Xiaoxia Cui
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Adult ,Male ,Lung Neoplasms ,Integrin ,Pilot Projects ,Peptide ,Carcinoma, Non-Small-Cell Lung ,Positron Emission Tomography Computed Tomography ,medicine ,Carcinoma ,Humans ,Radiology, Nuclear Medicine and imaging ,Receptors, Somatostatin ,Single scan ,Receptor ,Lung cancer ,Aged ,chemistry.chemical_classification ,biology ,Somatostatin receptor ,business.industry ,Neuroendocrine neoplasm ,General Medicine ,Middle Aged ,Integrin alphaVbeta3 ,medicine.disease ,Small Cell Lung Carcinoma ,Neuroendocrine Tumors ,chemistry ,Cancer research ,biology.protein ,Female ,business - Abstract
This pilot study aimed to prove the complementary value of a novel Gallium-labeled heterodimeric peptide, Ga-NOTA-3P-TATE-RGD, in detection and evaluation of tumors with somatostatin receptor subtype 2 or integrin αvβ3 overexpression, including non-small cell lung cancer (NSCLC), small-cell lung cancer (SCLC), neuroendocrine tumor (NET), and neuroendocrine carcinoma (NEC).With institute review board approval and written informed consent, 32 patients with pathologically diagnosed lung cancer (18 NSCLC, 14 SCLC) and 12 patients with neuroendocrine neoplasm (8 NET, 4 NEC) patients were recruited to undergo Ga-NOTA-3P-TATE-RGD PET/CT. For comparison, the NSCLC patients also underwent Ga-NOTA-TATE PET/CT, the SCLC patients underwent Ga-NOTA-RGD PET/CT, and the neuroendocrine neoplasm patients underwent F-FDG PET/CT within 3 days. The maximum standardized uptake value (SUV) of the primary tumor (T) and mean SUV of the blood pool (B) were measured, and the T/B ratios were calculated for comparison.In the primary tumors of NSCLC, the T/B ratios of Ga-NOTA-3P-TATE-RGD were significantly higher than those of Ga-NOTA-TATE (4.54 ± 3.00 versus 4.10 ± 2.83, P = 0.0058). In SCLC, the T/B ratios of Ga-NOTA-3P-TATE-RGD were significantly higher than those of Ga-NOTA-RGD (6.06 ± 6.09 versus 2.65 ± 1.19, P = 0.0344). In NET, the T/B ratios of Ga-NOTA-3P-TATE-RGD were 36.13 ± 33.84, significantly higher than those of F-FDG (2.91 ± 1.71, P = 0.0234). In NEC, there were no significant difference between the T/B ratios of Ga-NOTA-3P-TATE-RGD (4.80 ± 0.85) and those of F-FDG (3.56 ± 0.74, P = 0.1833).This proof-of-concept study preliminarily demonstrates the efficacy of the dual targeting Ga-NOTA-3P-TATE-RGD PET/CT in the evaluation of lung cancer and neuroendocrine neoplasm in a single scan.
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- 2019
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41. Design and magneto‐optical characteristics of Ge–Sb–S–PbI 2 chalcogenide glasses with a high Verdet constant
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Min Lu, Xiaoxia Cui, Haitao Guo, Jian Cui, Junjiang Guo, Jiangbo She, Xiaogang Liu, Xusheng Xiao, Bo Peng, and Yantao Xu
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Materials science ,Verdet constant ,Chalcogenide ,business.industry ,Magneto optical ,symbols.namesake ,chemistry.chemical_compound ,chemistry ,Materials Chemistry ,Ceramics and Composites ,symbols ,Optoelectronics ,Raman spectroscopy ,business - Published
- 2019
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42. Molecular characterization of clinical responses to PD‐1/PD‐L1 inhibitors in non‐small cell lung cancer: Predictive value of multidimensional immunomarker detection for the efficacy of PD‐1 inhibitors in Chinese patients
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Kai Wang, Xiangdong Zhou, Qi Wang, Xiaoxia Cui, Xiaoyu Zhang, Chunxue Bai, Li Zhang, Jian Zhang, Jianping Zhao, Peng Song, Xiaoju Zhang, Faguang Jin, Yao Yu, Li Bai, Xiaoli Zhu, Yanbin Zhou, and Chengzhi Zhou
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Adult ,Male ,0301 basic medicine ,Pulmonary and Respiratory Medicine ,Oncology ,medicine.medical_specialty ,Lung Neoplasms ,Adolescent ,medicine.medical_treatment ,Programmed Cell Death 1 Receptor ,Pembrolizumab ,NSCLC ,Multi‐omics ,B7-H1 Antigen ,Young Adult ,Study Protocol ,03 medical and health sciences ,Antineoplastic Agents, Immunological ,0302 clinical medicine ,PD‐1/PD‐L1 inhibitor ,Carcinoma, Non-Small-Cell Lung ,PD-L1 ,Internal medicine ,Biomarkers, Tumor ,medicine ,Humans ,Molecular Targeted Therapy ,predictive biomarker ,Lung cancer ,Aged ,Response rate (survey) ,biology ,business.industry ,General Medicine ,Immunotherapy ,Middle Aged ,medicine.disease ,Clinical trial ,Treatment Outcome ,030104 developmental biology ,030220 oncology & carcinogenesis ,biology.protein ,Immunohistochemistry ,Female ,Nivolumab ,business - Abstract
According to multiple studies, the objective response rate of PD‐1/PD‐L1 inhibitors in the second‐line treatment of unscreened non‐small cell lung cancer (NSCLC) is only approximately 20%. Predictive biomarkers of treatment efficacies are still under investigation. In selected NSCLC patients with PD‐L1 expression ≥ 50%, the response rate of pembrolizumab in first‐line treatment can reach 44.8%. Moreover, patients with a higher tumor mutation burden (TMB) tend to achieve a better response with nivolumab. Besides PD‐L1 expression and TMB, taking all these indicators into consideration would hypothetically maximize the clinical response in a specific subgroup of patients. Our study aims to accumulate large and complete samples and clinical data to verify the biomarkers and their cutoff values related to the efficacy of PD‐1/PD‐L1 inhibitors in Chinese NSCLC patients, and to construct a comprehensive predictive model by combining multi‐omics data with contemporary machine learning techniques. NSCLC patients administered treatment of anti‐PD‐1/PD‐L1 antibodies or a combination with other drugs have been enrolled. The estimated enrollment is 250 participants. A sophisticated predictive model of immunotherapy response in the Chinese population has not yet been developed. It is clinically and practically imperative to comprehensively evaluate the possible indicators of Chinese NSCLC patients through multiple test platforms, such as next generation sequencing, PCR, or immunohistochemistry. This study is registered in the Chinese Clinical Trial Registry (ChiCTR1900021395).
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- 2019
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43. The soybean cinnamate 4-hydroxylase gene GmC4H1 contributes positively to plant defense via increasing lignin content
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Xiaoxia Cui, Qiang Yan, Han Xing, Jierui Si, Hao Peng, Xin Chen, and Daolong Dou
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0106 biological sciences ,0301 basic medicine ,Physiology ,fungi ,food and beverages ,Nicotiana benthamiana ,Plant physiology ,Plant Science ,Biology ,biology.organism_classification ,01 natural sciences ,Transcriptome ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,Biochemistry ,chemistry ,Gene expression ,Plant defense against herbivory ,Lignin ,Phytophthora sojae ,Verticillium dahliae ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Lignification is a key event in plant defense against pathogens. In the plant lignin biosynthetic pathway, cinnamate 4-hydroxylase (C4H) catalyzes the conversion of trans-cinnamic acid to p-coumaric acid. However, the potential role of C4H in plant defense remains elusive. In this research, a soybean C4H gene, GmC4H1, was identified via microarray-based comparative transcriptome analysis of genes responsive to Phytophthora sojae infection. The accumulation of GmC4H1 transcripts increased significantly upon P. sojae infection. Nicotiana benthamiana plants overexpressing GmC4H1 demonstrated enhanced lignin accumulation and elevated resistance to both Phytophthora parasitica and Verticillium dahliae. The silencing of GmC4H1 in soybean hairy roots resulted in decreased resistance to P. sojae. These results together suggest that GmC4H1 contributes positively to plant defense against various pathogens, possibly by enhancing lignin biosynthesis.
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- 2019
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44. Mid-Infrared Emission of Transition Metal Co2+-Doped ZnSe Nanocrystals at Room Temperature via Hydrothermal Preparation
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Meiling Chen, Xiaoxia Cui, Chao Liu, Yantao Xu, Xusheng Xiao, Haitao Guo, Jian Cui, and Junjiang Guo
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Crystal ,Photoluminescence ,Materials science ,Nanocrystal ,X-ray photoelectron spectroscopy ,Transition metal ,Transmission electron microscopy ,Doping ,Analytical chemistry ,General Materials Science ,Spectroscopy - Abstract
A series of Co2+:ZnSe and Co2+:ZnSe/ZnSe nanocrystals emitting mid-infrared (mid-IR) fluorescence centered at around 3.4 and 4.7 μm were successfully synthesized via a simple hydrothermal method. The core/shell structure and post-heat treatment under reducing atmosphere were adopted to decrease the nanocrystal’s surface quenching centers and defects and improve the mid-IR photoluminescence. By analysis of the X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy (TEM), high-resolution TEM, Fourier transform IR, absorption, and mid-IR emission measurements of serial concentrations of Co2+-doped ZnSe nanocrystals, the crystal phase, grain size, core/shell structure, distribution of Co2+ ions, impurities on the surface, and mid-IR emission performance were investigated in detail. By use of optimum Co2+ concentration, core/shell structure construction, and proper post-heat treatment, the mid-IR emission intensities of nanocrystals were enha...
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- 2019
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45. Highly reliable creation of floxed alleles by electroporating single-cell embryos
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Monica F. Sentmanat, J. Michael White, Evguenia Kouranova, and Xiaoxia Cui
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Mice, Knockout ,QH301-705.5 ,Physiology ,Zygote ,Methodology Article ,Conditional knockout mice ,Functional genomics ,Cell Biology ,Plant Science ,Gene editing ,Mouse models ,Floxing ,General Biochemistry, Genetics and Molecular Biology ,Mice ,Structural Biology ,CRISPR ,Animals ,Biology (General) ,CRISPR-Cas Systems ,General Agricultural and Biological Sciences ,Ecology, Evolution, Behavior and Systematics ,Alleles ,Developmental Biology ,Biotechnology ,RNA, Guide, Kinetoplastida - Abstract
Background Floxed (flanked by loxP) alleles are a crucial portion of conditional knockout mouse models. However, an efficient and reliable strategy to flox genomic regions of any desired size is still lacking. Results Here, we demonstrate that the method combining electroporation of fertilized eggs with gRNA/Cas9 complexes and single-stranded oligodeoxynucleotides (ssODNs), assessing phasing of loxP insertions in founders using an in vitro Cre assay and an optional, highly specific and efficient second-round targeting ensures the generation of floxed F1 animals in roughly five months for a wide range of sequence lengths (448 bp to 160 kb reported here). Conclusions Floxed alleles can be reliably obtained in a predictable timeline using the improved method of electroporation of two gRNA/Cas9 ribonucleoprotein particles (RNPs) and two ssODNs.
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- 2021
46. Efficacy and safety of camrelizumab combined with chemotherapy (irinotecan combined with platinum) followed by camrelizumab combined with apatinib in the first-line treatment of advanced small cell lung cancer: A phase II study
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Jun Ni, Xiaotong Zhang, Ruili Pan, Hanping Wang, Xiaoyan Si, Xiaoxia Cui, and Li Zhang
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Cancer Research ,Oncology - Abstract
8573 Background: The treatment mode of small cell lung cancer (SCLC) is mainly based on the comprehensive treatment of chemotherapy and radiotherapy. IMpower133 study, suggesting that immune checkpoint inhibitors combined with chemotherapy first-line treatment for advanced SCLC may bring new research directions of clinical benefit. Previous study suggested that the combination of anti-PD-1 antibody camrelizumab and VEGFR-2 inhibitor apatinib significantly improved antitumor effects. The aim of this study was to evaluate the efficacy and safety of camrelizumab combined with chemotherapy (irinotecan combined with platinum) followed by camrelizumab combined with apatinib in the first-line treatment of SCLC. Methods: Extensive-stage small cell lung cancer patients were enrolled in this single-center, single-arm study. During the induction treatment phase, Patients received camrelizumab (200mg q3w), irinotecan (65 mg/m2, q3w) and platinum (cisplatin: 30 mg/m2, carboplatin: AUC=4̃5), after 4-6 cycles, the patient entered the maintenance phase, and then patients received camrelizumab combined with apatinib until disease progression or unacceptable toxicity. Treatment efficacy was assessed every 3 cycles (6 weeks). The primary endpoint is progression-free survival (PFS). Secondary endpoints are objective response rate (ORR), disease control rate (DCR), duration of response (DoR) and overall survival (OS), which are based on RECIST 1.1. Results: At data cut-off (Jan 10, 2022), 20 extensive-stage SCLC patients were enrolled in the study, of which 18 patients were evaluable. Median age was 64 years, male accounts for 85.0% (17/20). Median follow-up was 5.0 months (range 0.4̃17.6 months). Of 18 evaluable patients, no one achieved complete response Partial response was achieved by 17 (94.4%) patients and stable disease exhibited by 1 (5.6%) patient. The ORR and DCR were 94.4% and 100%, respectively. mPFS and mDoR have not been reached. In terms of adverse events (AEs), reactive cutaneous capillary hyperplasia (RCCEP) was observed in 10 (47.6%) patients 10 patients. Grade III-IV AEs were observed in 7 (35.0%) patients with neutropenia, thrombocytopenia, hemoglobin reduction, leukopenia, rash. The rest were grade I-II AEs. Conclusions: The treatment in this study showed impressive ORR and DCR, and acceptable toxicity, and may be a promising method as a first line treatment. Clinical trial information: NCT04453930.
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- 2022
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47. Targeted genome modification in mice using zinc-finger nucleases
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Carbery, Iara D., Ji, Diana, Harrington, Anne, Brown, Victoria, Weinstein, Edward J., Liaw, Lucy, and Xiaoxia Cui
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DNA repair -- Research ,Enzyme binding -- Research ,Rodents as pets -- Physiological aspects ,Rodents as pets -- Genetic aspects ,Stem cells -- Physiological aspects ,Stem cells -- Genetic aspects ,Biological sciences - Published
- 2010
48. Expression of miR-92a in colon cancer tissues and its correlation with clinicopathologic features and prognosis
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Xiang, Wu, Xiaoxia, Cui, Chundi, Yue, Xusheng, Liu, and Zhanduan, Mo
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Original Article - Abstract
Objective: This study analyzed the expression of miR-92a in colon tumor tissues and its correlation with disease clinicopathologic features and prognosis. Methods: 83 cases of colorectal cancer tissues and paracancerous normal tissues acquired from colon cancer resection surgery during January 2015-January 2017 were collected. We detected the expression of miR-92a in cancer tissues and paracancerous tissues by qRT-PCR, and analyzed the correlation between the relative expression of miR-92 in colon cancer tissues and clinicopathologic characteristics, progression-free survival (PFS), and overall survival (OS) of the patients accordingly. Results: The relative expression level of miR-92a in colon cancer tissues was higher than of paracancerous tissues (P0.05). Patients with low expression of miR-92a had superior PFS to the control group (P>0.05) and better OS (P
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- 2021
49. One-step RNA extraction for RT-qPCR detection of 2019-nCoV
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Evguenia Kouranova, Monica F. Sentmanat, and Xiaoxia Cui
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Lysis ,Real-time polymerase chain reaction ,TaqMan ,RNA ,RNA extraction ,Biology ,Primer (molecular biology) ,Virology ,Reverse transcriptase ,Virus - Abstract
The global outbreak of coronavirus disease 2019 (COVID-19) has placed an unprecedented burden on healthcare systems as the virus spread from the initial 27 reported cases in the city of Wuhan, China to a global pandemic in under three month[1]. Resources essential to monitoring virus transmission have been challenged with a demand for expanded surveillance. The CDC 2019-nCoV Real-Time Diagnostic Panel uses a real-time reverse transcription polymerase chain reaction (RT-PCR) consisting of two TaqMan probe and primer sets specific for the 2019-nCoV N gene, which codes for the nucleocapsid structural protein that encapsulates viral RNA, for the qualitative detection of 2019-nCoV viral RNA in respiratory samples. To isolate RNA from respiratory samples, the CDC lists RNA extraction kits from four manufacturers. In anticipation of a limited supply chain of RNA extraction kits and the need for test scalability, we sought to identify alternative RNA extraction methods. Here we show that direct lysis of respiratory samples can be used in place of RNA extraction kits to run the CDC 2019-nCoV Real-Time Diagnostic assay with the additional benefits of higher throughput, lower cost, faster turnaround and possibly higher sensitivity and improved safety.
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- 2020
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50. 虚拟仿真场景中威胁性视觉刺激搜索的注意偏向效应 *
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Xiaojun Yuan, Xiaoxia Cui, Hong Kan, Zhengcao Cao, Xiao Wang, and Yamin Wang
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Visual search ,Visual perception ,Ecological validity ,05 social sciences ,Virtual reality ,Attentional bias ,050105 experimental psychology ,Task (project management) ,03 medical and health sciences ,0302 clinical medicine ,0501 psychology and cognitive sciences ,Psychology ,030217 neurology & neurosurgery ,General Psychology ,Cognitive psychology - Published
- 2018
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