13 results on '"Tao Wang"'
Search Results
2. Pleiotrophin affects the susceptibility of prostate cancer cells to cisplatin
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Xingxing Wang, Linlin Ding, Yumeng Dai, Liwei You, Qiuru Che, Ke Ding, Liquan Yang, Zhuoqi Zhang, Yuqiang Zhang, Yunfei Li, Tao Wang, Zhiwei Li, and Wei Sun
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Male ,Cancer Research ,Antineoplastic Agents ,Pleiotrophin ,Flow cytometry ,medicine ,Humans ,Pharmacology (medical) ,MTT assay ,RNA, Small Interfering ,Pharmacology ,Cisplatin ,Dose-Response Relationship, Drug ,medicine.diagnostic_test ,Chemistry ,Prostatic Neoplasms ,Transfection ,Blot ,Oncology ,Apoptosis ,PC-3 Cells ,Cancer cell ,Cancer research ,Cytokines ,Carrier Proteins ,medicine.drug - Abstract
Drug resistance is a major problem in cancer therapy with cisplatin. It has not been reported that pleiotrophin, which is anti-apoptotic in some cancer cells, is associated with cisplatin resistance. Pleiotrophin was exogenously expressed in 293 cells. Viability and apoptosis of PC3 cells treated with different concentrations of cisplatin in the presence or absence of purified pleiotrophin were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and flow cytometry, respectively. PC3 cells transfected with shRNAs were analyzed by reverse transcription-polymerase chain reaction (RT-PCR) and western blotting 24 h after transfection. MTT assay data indicated that the EC50 value of cisplatin for PC3 cells was significantly increased in the presence of pleiotrophin. Flow cytometry data demonstrated the pleiotrophin dose-dependent anti-apoptosis in PC3 cells treated with cisplatin. Knockdown of pleiotrophin with sh-RNA, as justified by RT-PCR and western blotting analysis, led to increased cisplatin induced-apoptosis in PC3 cells with an increased level of the cleaved poly ADP-ribose polymerase protein. Pleiotrophin may be a potential antiapoptotic protein associated with cisplatin susceptibility, which warrants further study on the role of pleiotrophin in cisplatin resistance.
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- 2021
3. Ripretinib Versus Sunitinib in Patients With Advanced Gastrointestinal Stromal Tumor After Treatment With Imatinib (INTRIGUE): A Randomized, Open-Label, Phase III Trial
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Sebastian Bauer, Robin L. Jones, Jean-Yves Blay, Hans Gelderblom, Suzanne George, Patrick Schöffski, Margaret von Mehren, John R. Zalcberg, Yoon-Koo Kang, Albiruni Abdul Razak, Jonathan Trent, Steven Attia, Axel Le Cesne, Ying Su, Julie Meade, Tao Wang, Matthew L. Sherman, Rodrigo Ruiz-Soto, and Michael C. Heinrich
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Cancer Research ,Indoles ,Gastrointestinal Stromal Tumors ,Medizin ,Antineoplastic Agents ,Proto-Oncogene Proteins c-kit ,Oncology ,Drug Resistance, Neoplasm ,Mutation ,Imatinib Mesylate ,Sunitinib ,Humans ,Pyrroles ,Protein Kinase Inhibitors - Abstract
PURPOSE Sunitinib, a multitargeted tyrosine kinase inhibitor (TKI), is approved for advanced gastrointestinal stromal tumor (GIST) after imatinib failure. Ripretinib is a switch-control TKI approved for advanced GIST after prior treatment with three or more TKIs, including imatinib. We compared efficacy and safety of ripretinib versus sunitinib in patients with advanced GIST who were previously treated with imatinib (INTRIGUE, ClinicalTrials.gov identifier: NCT03673501 ). PATIENTS AND METHODS Random assignment was 1:1 to once-daily ripretinib 150 mg or once-daily sunitinib 50 mg (4 weeks on/2 weeks off) and stratified by KIT/ platelet-derived growth factor α mutation and imatinib intolerance. The primary end point was progression-free survival (PFS) by independent radiologic review using modified Response Evaluation Criteria in Solid Tumors version 1.1. Secondary end points included objective response rate by independent radiologic review, safety, and patient-reported outcome measures. RESULTS Overall, 453 patients were randomly assigned to ripretinib (intention-to-treat [ITT], n = 226; KIT exon 11 ITT, n = 163) or sunitinib (ITT, n = 227; KIT exon 11 ITT, n = 164). Median PFS for ripretinib and sunitinib ( KIT exon 11 ITT) was 8.3 and 7.0 months, respectively (hazard ratio, 0.88; 95% CI, 0.66 to 1.16; P = .36); median PFS (ITT) was 8.0 and 8.3 months, respectively (hazard ratio, 1.05; 95% CI, 0.82 to 1.33; nominal P = .72). Neither was statistically significant. Objective response rate was higher for ripretinib versus sunitinib in the KIT exon 11 ITT population (23.9% v 14.6%, nominal P = .03). Ripretinib was associated with a more favorable safety profile, fewer grade 3/4 treatment-emergent adverse events (41.3% v 65.6%, nominal P < .0001), and better scores on patient-reported outcome measures of tolerability. CONCLUSION Ripretinib was not superior to sunitinib in terms of PFS. However, meaningful clinical activity, fewer grade 3/4 treatment-emergent adverse events, and improved tolerability were observed with ripretinib.
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- 2022
4. Pan-cancer analyses of classical protein tyrosine phosphatases and phosphatase-targeted therapy in cancer
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Tao Wang, Xinlei Ba, Xiaonan Zhang, Na Zhang, Guowen Wang, Bin Bai, Tong Li, Jiahui Zhao, Yanjiao Zhao, Yang Yu, and Bing Wang
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Neoplasms ,Immunology ,Humans ,Immunology and Allergy ,Antineoplastic Agents ,Protein Tyrosine Phosphatases ,Signal Transduction - Abstract
Protein tyrosine phosphatases function in dephosphorylating target proteins to regulate signaling pathways that control a broad spectrum of fundamental physiological and pathological processes. Detailed knowledge concerning the roles of classical PTPs in human cancer merits in-depth investigation. We comprehensively analyzed the regulatory mechanisms and clinical relevance of classical PTPs in more than 9000 tumor patients across 33 types of cancer. The independent datasets and functional experiments were employed to validate our findings. We exhibited the extensive dysregulation of classical PTPs and constructed the gene regulatory network in human cancer. Moreover, we characterized the correlation of classical PTPs with both drug-resistant and drug-sensitive responses to anti-cancer drugs. To evaluate the PTP activity in cancer prognosis, we generated a PTPscore based on the expression and hazard ratio of classical PTPs. Our study highlights the notable role of classical PTPs in cancer biology and provides novel intelligence to improve potential therapeutic strategies based on pTyr regulation.
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- 2022
5. Sinomenine Derivatives: Synthesis, Antitumor Activity, and Apoptotic Induction in MCF-7 Cells via IL-6/PI3K/Akt/NF-κB Signaling Pathway
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Zuchang Zhu, Huixian Zhou, Fenglian Chen, Jianxiong Deng, Lina Yin, Baoen He, Qingzhong Hu, and Tao Wang
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Pharmacology ,Molecular Structure ,Interleukin-6 ,Organic Chemistry ,NF-kappa B ,Antineoplastic Agents ,Apoptosis ,Biochemistry ,Phosphatidylinositol 3-Kinases ,Structure-Activity Relationship ,Morphinans ,Drug Discovery ,MCF-7 Cells ,Molecular Medicine ,Humans ,General Pharmacology, Toxicology and Pharmaceutics ,Drug Screening Assays, Antitumor ,Proto-Oncogene Proteins c-akt ,Cell Proliferation ,Signal Transduction - Abstract
Natural products have been widely considered as an important resource for new drugs or lead compounds. Sinomenine (SIN) and its derivatives exert antitumor activity via regulation of inflammatory mediators. For these reasons we synthesized three series of SIN derivatives (compounds 4 a-i, 7 a-c and 11 a-c) as antitumor agents from this natural product. All compounds were prepared by modification at the C1 and C4 positions of the A ring, the C4 position of the A ring, and the C6 and C7 positions of the C ring, respectively. All the derivatives were subjected to in vitro antitumor activity against HeLa, A549, HepG-2, MCF-7 and HT-29 cell lines. To observe the apoptotic induction of SIN derivatives and its mechanism, fluorescent staining and western blot assays were carried out for active compound against MCF-7. Based on the screening results, most of the SIN derivatives showed better antitumor activity than SIN. Some of them were found to possess broad-spectrum antitumor activity. Most notably, 11 c exhibited obvious antitumor activity in both cell lines with IC
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- 2022
6. Assembly of pH-Responsive Antibody-Drug-Inspired Conjugates
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Astrid Johanna Heck, Tao Wang, Lutz Nuhn, Tanja Weil, Seah Ling Kuan, Dominik Schauenburg, Marco Raabe, David Y. W. Ng, Siska Führer, Michaela Pieszka, and Maksymilian Marek Zegota
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chemistry.chemical_classification ,Scaffold protein ,Immunoconjugates ,Polymers and Plastics ,biology ,Antibodies, Monoclonal ,Biotin ,Bioengineering ,Peptide ,Antineoplastic Agents ,Hydrogen-Ion Concentration ,Biomaterials ,chemistry.chemical_compound ,chemistry ,Cancer cell ,Materials Chemistry ,biology.protein ,Biophysics ,Antigens ,Receptor ,Linker ,Biotechnology ,Avidin ,Conjugate - Abstract
With the advent of chemical strategies that allow the design of smart bioconjugates, peptide- and protein-drug conjugates are emerging as highly efficient therapeutics to overcome limitations of conventional treatment, as exemplified by antibody-drug conjugates (ADCs). While targeting peptides serve similar roles as antibodies to recognize overexpressed receptors on diseased cell surfaces, peptide-drug conjugates suffer from poor stability and bioavailability due to their low molecular weights. Through a combination of a supramolecular protein-based assembly platform and a pH-responsive linker, the authors devise herein the convenient assembly of a trivalent protein-drug conjugate. The conjugate should ideally possess distinct features of ADCs such as 1) recognition sites that recognize cell receptor and are arranged on 2) distinct locations on a high molecular weight protein scaffold, 3) a stimuli-responsive linker, as well as 4) an attached payload such as a drug molecule. These AD-like conjugates target cancer cells that overexpress somatostatin receptors, can enable controlled release in the microenvironment of cancer cells through a new pH-responsive biotin linker, and exhibit stability in biological media.
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- 2021
7. Coacervate-Based Instant and Repeatable Underwater Adhesive with Anticancer and Antibacterial Properties
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Qiongyao Peng, Qiuqiu Wu, Hongbo Zeng, Meng Wu, Jingsi Chen, Diling Yang, Hao Zhang, Tao Wang, Jifang Liu, and Xuwen Peng
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Staphylococcus aureus ,Materials science ,Swine ,Antineoplastic Agents ,02 engineering and technology ,Microbial Sensitivity Tests ,Poloxamer ,010402 general chemistry ,01 natural sciences ,Micelle ,Polyvinyl alcohol ,Hydrophobic effect ,chemistry.chemical_compound ,Adhesives ,Cell Line, Tumor ,Escherichia coli ,Animals ,Humans ,General Materials Science ,Skin ,Coacervate ,Adhesiveness ,Water ,Hydrogen Bonding ,Adhesion ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Anti-Bacterial Agents ,chemistry ,Chemical engineering ,Adhesive ,Drug Screening Assays, Antitumor ,0210 nano-technology ,Drug carrier ,Ethylene glycol ,Hydrophobic and Hydrophilic Interactions ,Tannins - Abstract
Underwater adhesion is a great challenge for the development of adhesives as the attractive interfacial intermolecular interactions are usually weakened by the surface hydration layer. The coacervation process of sessile organisms like marine mussels and sandcastle worms has inspired substantial research interest in the fabrication of long-lasting underwater adhesives, but they generally suffer from time-consuming curing triggered by surrounding environmental changes and cannot reserve the adhesiveness once damaged. Herein, an instant and repeatable underwater adhesive was developed based on the coacervation of tannic acid (TA) and poly(ethylene glycol)77-b-poly(propylene glycol)29-b-poly(ethylene glycol)77 (PEG-PPG-PEG, F68), which was driven by hydrogen-bonding interaction, and the hydrophobic cores of F68 micelles offered an additional cross-linking to enhance the mechanical properties. The TA-F68 coacervates could be facilely painted on different substrates, exhibiting robust and instant underwater adhesion (with adhesion strength up to 1.1 MPa on porcine skin) and excellent repeatability (at least 1000 cycles), superior to the previously reported coacervates. Due to the biological activities of TA, the underwater adhesive displayed innate anticancer and antibacterial properties against different types of cancer cells and bacteria, showing great potential for diverse biomedical applications, such as injectable drug carriers, tissue glues, and wound dressings.
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- 2021
8. Development of ligand modified erythrocyte coated polydopamine nanomedicine to codeliver chemotherapeutic agent and oxygen for chemo-photothermal synergistic cancer therapy
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Liyao Zhang, Peijie Huang, Shubin Huang, Tao Wang, Shufeng Chen, Zhihao Chen, Yi Zhou, and Linghao Qin
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Drug Carriers ,Erythrocytes ,Indoles ,Photothermal Therapy ,Polymers ,Pharmaceutical Science ,Antineoplastic Agents ,Hyperthermia, Induced ,Phototherapy ,Ligands ,Oxygen ,Nanomedicine ,Doxorubicin ,Neoplasms ,Humans ,Nanoparticles - Abstract
The use of conventional chemotherapy often faces limitations such as severe side effects, weak tumor tissue specificity, and the development of multidrug resistance. To conquer these challenges, numerous novel drug carriers have been designed in recent years. However, due to the complex processes of tumor development, metastasis and recurrence, single chemotherapy cannot fulfill the goals of clinical diverse treatment. In this work, by utilizing the inherent characteristics of surface-modified erythrocyte and the outstanding photothermal conversion capability of polydopamine (PDA), we designed and constructed a biomimetic multifunctional nanomedicine DPPR NPs to codeliver chemotherapeutic agent doxorubicin (DOX) and oxygen. The results showed that DPPR NPs exhibited inspiring features including nanoscale droplet size, good physicochemical stability, and sustained, pH-, and NIR triggered drug release behavior. It can dramatically prolong the systematic circulation time and elevated the drug accumulated level in the tumor site. Moreover, DPPR NPs could be effectively internalized into tumor cells and destroyed the intracellular redox balance to mediate cell apoptosis. It exerted excellent in vivo tumor targeting effect, photothermal conversion efficiency, ultrasound imaging responses, antitumor efficacy, and good compatibility. In summary, DPPR NPs provide a biomimetic drug delivery platform to organically combine chemotherapy and photothermal therapy for precise cancer treatment.
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- 2022
9. Cell metabolomics study on the anticancer effects of Ophiopogon japonicus against lung cancer cells using UHPLC/Q-TOF-MS analysis.
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Qiao Liu, Jia-Man Shen, Hui-Jie Hong, Qi Yang, Wen Liu, Zhong Guan, Yi-Tao Wang, and Xiao-Jia Chen
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LUNG cancer ,CANCER cells ,METABOLOMICS ,TIME-of-flight mass spectrometry ,ANTINEOPLASTIC agents ,LIPID metabolism ,ETHER lipids - Abstract
Ophiopogon japonicus (OJ) is a traditional Chinese herbal medicine that has been used for thousands of years. Recently, the anticancer effects of OJ have been reported in multiple types of cancer, particularly in lung cancer. However, the underlying mechanisms remain unclear. In present study, the effects of OJ against NCI-H1299 human lung cancer cells were investigated, and the underlying mechanisms were explored using ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC/Q-TOF-MS)-based cell metabolomics. As a result, OJ inhibited the proliferation, induced the apoptosis and suppressed the migration of NCIH1299 cells. A total of 22 differential metabolites responsible for the effects of OJ were screened and annotated based on the LC-MS-based cell metabolomics approach. The altered metabolites were involved in three metabolic pathways, including glycerophospholipid metabolism, ether lipid metabolism and glutathione metabolism. These results showed that cell metabolomics-based strategies are promising tools to discover the action mechanisms of OJ against lung cancer cells. [ABSTRACT FROM AUTHOR]
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- 2022
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10. Lipid response of hepatocellular carcinoma cells to anticancer drug detected on nanostructure-assisted LDI-MS platform
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Jianmin Wu, Xingyue Liu, Xuetong Qu, Yuexin Li, Tao Wang, and Xiao Liang
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Sorafenib ,Cisplatin ,Drug ,Carcinoma, Hepatocellular ,Chemistry ,media_common.quotation_subject ,Liver Neoplasms ,Antineoplastic Agents ,Hep G2 Cells ,medicine.disease ,digestive system diseases ,Nanostructures ,Analytical Chemistry ,Hep G2 ,Hepatocellular carcinoma ,medicine ,Cancer research ,Humans ,Doxorubicin ,Viability assay ,Chemosensitivity assay ,Phospholipids ,medicine.drug ,media_common - Abstract
High heterogeneity of hepatocellular carcinoma (HCC) tumor has become an obstacle to select effective therapy for the treatment of HCC patients. Methods that can guide the decision on therapy choice for HCC treatment are highly demanded. Evaluating the drug response of heterogeneous tumor cells at the molecular level can help to reveal the toxicity mechanism of anticancer drugs and provide more information than current cell-based chemosensitivity assays. In the present work, nanostructure-assisted laser desorption/ionization mass spectrometry (NALDI-MS) was used to investigate the lipid response of HCC cells to anticancer drugs. Three types of HCC cells (LM3, Hep G2, Huh7) were treated with sorafenib, doxorubicin hydro-chloride, and cisplatin. We found that the lipid profiles of HCC cells changed a lot after the drug treatment, and the degree of lipid changes was related to the cell viability. Two pairs of fatty acids C16:1/C16:0 and C18:1/C18:0 were found to be strongly related to the viability of HCC cells after drug treatment, and were more sensitive than Methyl-thiazolyl tetrazolium (MTT) assay. Accordingly, they can act as sensitive and comprehensive indexes to evaluate the drug susceptibility of HCC cells. In addition, the peak ratio of several neighboring phospholipids displayed high correlation with drug response of specific cell subtype to specific drug. The ratio of neighboring lipids may be traced back to the activity of enzyme and gene expression which regulate the lipidomic pathway. This method provides drug response of heterogenous tumor cells at molecular level and could be a potential candidate to precise tumor chemosensitivity assay.
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- 2021
11. Discovery of GNE-502 as an orally bioavailable and potent degrader for estrogen receptor positive breast cancer
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Kuen Yeap, Birong Zhang, Jae H. Chang, Lori Friedman, Nick Ray, Jiangpeng Liao, Xiaojing Wang, Amy Sambrone, Jun Li, Yu Zhong, Ellen Ingalla, Jason R. Zbieg, Daniel F. Ortwine, Vidhi Mody, John S. Wai, Tao Wang, Maia Vinogradova, Sharada Labadie, Steven J. Hartman, Tracy Kleinheinz, Nev McLean, Tommy Lai, Simon Charles Goodacre, Deepak Sampath, Jun Liang, Fabien Roussel, James R. Kiefer, Ciara Metcalfe, Xiaoping Zheng, Yingqing Ran, Michelle Nannini, and Robert A. Blake
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Drug ,Protein Conformation ,media_common.quotation_subject ,Clinical Biochemistry ,Pharmaceutical Science ,Estrogen receptor ,Antineoplastic Agents ,Breast Neoplasms ,Pharmacology ,Biochemistry ,Mice ,Route of administration ,Breast cancer ,Pharmacokinetics ,Drug Discovery ,medicine ,Animals ,Humans ,Molecular Biology ,media_common ,Dose-Response Relationship, Drug ,Molecular Structure ,Fulvestrant ,Chemistry ,Organic Chemistry ,Antagonist ,medicine.disease ,Xenograft Model Antitumor Assays ,Bioavailability ,Receptors, Estrogen ,MCF-7 Cells ,Molecular Medicine ,Female ,medicine.drug - Abstract
Fulvestrant is an FDA-approved drug with a dual mechanism of action (MOA), acting as a full antagonist and degrader of the estrogen receptor protein. A significant limitation of fulvestrant is the dosing regimen required for efficacy. Due to its high lipophilicity and poor pharmacokinetic profile, fulvestrant needs to be administered through intramuscular injections which leads to injection site soreness. This route of administration also limits the dose and target occupancy in patients. We envisioned a best-in-class molecule that would function with the same dual MOA as fulvestrant, but with improved physicochemical properties and would be orally bioavailable. Herein we report our progress toward that goal, resulting in a new lead GNE-502 which addressed some of the liabilities of our previously reported lead molecule GNE-149.
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- 2021
12. Design, Synthesis, and Antitumor Activity Evaluation of Trifluoromethyl-Substituted Pyrimidine Derivatives Containing Urea Moiety.
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Liu Limin, Zhengjie, Wang, Xiujuan, Liu, Chao, Gao, Honglin, Dai, Tao, Wang, Na, Li, Heyi, Yan, Yang, Zhang, Luye, Zhang, Jiaxin, Zheng, Lihong, Shan, Hongmin, Liu, and Qiurong, Zhang
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UREA derivatives ,ANTINEOPLASTIC agents ,PYRIMIDINE derivatives ,EPIDERMAL growth factor receptors ,MOIETIES (Chemistry) - Abstract
In order to find efficient new antitumor drugs, a series of novel pyrimidine derivatives containing urea moiety were designed and synthesized, and the antitumor activity of four human tumor cells was evaluated by MTT analysis. The results showed that most of the target compounds exhibited moderate antitumor activity. In particular, the IC
50 (concentration required to achieve 50% inhibition of the tumor cell proliferation) value of compound 2-((4-(4-ethylphenoxy)-6-(trifluoromethyl)pyrimidin-2-yl)thio)-N-((4-ethylphenyl)carba-moyl)acetamide for MGC-803 (human gastric carcinoma cell line) was 2.51 ± 0.17 µmol L–1 , the anti-proliferative activity was significantly better than the positive control drug 5-fluorouracil. Molecular docking revealed that this compound can bind well to the active site of epidermal growth factor receptor (EGFR), and it may become a potential antitumor drug. [ABSTRACT FROM AUTHOR]- Published
- 2021
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13. Ultralow-dose binary oncolytic/helper-dependent adenovirus promotes antitumor activity in preclinical and clinical studies.
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Wang, Daniel, Porter, Caroline E., Lim, Bora, Shaw, Amanda Rosewell, Robertson, Catherine S., Woods, Mae L., Ya Xu, Biegert, Greyson G. W., Morita, Daisuke, Tao Wang, Grilley, Bambi J., Heslop, Helen, Brenner, Malcolm K., and Masataka Suzuki
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PROGRAMMED cell death 1 receptors , *FEVER , *T cells , *ANTINEOPLASTIC agents , *GREEN fluorescent protein , *MONONUCLEAR leukocytes - Abstract
The article presents a study which showed that a binary oncolytic/helper-dependent adenovirus (CAdVEC) that boy lyses tumor cells and locally express the proinflammtory cytokine IL-12 and PDL1 blocking antibody has potent antitumor activity in humanized mouse models. Topics include cell lines and adenoviral vectors (HDAds and OAds), isolation of tumor-infiltrating immune cells, and quantification of vector genome DNA in CAdVEC-injected tumors of patients.
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- 2023
- Full Text
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