12 results on '"Taicheng Lu"'
Search Results
2. Chinese herbal medicine combined with oxaliplatin-based chemotherapy for advanced gastric cancer: A systematic review and meta-analysis of contributions of specific medicinal materials to tumor response
- Author
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Ying Tan, Heping Wang, Bowen Xu, Xiaoxiao Zhang, Guanghui Zhu, Yuansha Ge, Taicheng Lu, Ruike Gao, and Jie Li
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Pharmacology ,Pharmacology (medical) - Abstract
Introduction: The incidence and mortality of gastric cancer ranks among the highest, and the 5-year survival rate of advanced gastric cancer (AGC) is less than 10%. Currently, chemotherapy is the main treatment for AGC, and oxaliplatin is an important part of the commonly used chemotherapy regimen for AGC. A large number of RCTs have shown that Chinese herbal medicine (CHM) combined with oxaliplatin-based chemotherapy can improve objective response rate (ORR) and disease control rate (DCR), reduce the toxic and side effects of chemotherapy. There is currently a lack of systematic evaluation of the evidence to account for the efficacy and safety of CHM combined with oxaliplatin-based chemotherapy in AGC. Therefore, we carried out this study and conducted the sensitivity analysis on the herbal composition to explore the potential anti-tumor efficacy.Methods: Databases of PubMed, EMBASE, CENTRAL, Web of Science, the Chinese Biomedical Literature Database, the China National Knowledge Infrastructure, the Wanfang database, and the Chinese Scientific Journals Database were searched from their inception to April 2022. RCTs evaluating the efficacy of CHM combined with oxaliplatin-based chemotherapy on AGC were included. Stata 16 was used for data synthesis, RoB 2 for quality evaluation of included RCTs, and GRADE for quality of synthesized evidence. Additional sensitivity analysis was performed to explore the potential anti-tumor effects of single herbs and combination of herbs.Results: Forty trials involving 3,029 participants were included. Most included RCTs were assessed as “Some concerns” of risk of bias. Meta-analyses showed that compare to oxaliplatin-based chemotherapy alone, that CHM combined with oxaliplatin-based chemotherapy could increase the objective response rate (ORR) by 35% [risk ratio (RR) = 1.35, 95% confidence intervals (CI) (1.25, 1.45)], and disease control rate (DCR) by 12% [RR = 1.12, 95% CI (1.08, 1.16)]. Subgroup analysis showed that compare to SOX, FOLFOX, and XELOX regimens alone, CHM plus SOX, CHM plus FOLFOX, and CHM plus XELOX could significantly increase the ORR and DCR. Sensitivity analysis identified seven herbs of Astragalus, Liquorice, Poria, Largehead Atractylodes, Chinese Angelica, Codonopsis, and Tangerine Peel with potentials to improve tumor response of oxaliplatin-based chemotherapy in AGC.Conclusion: Synthesized evidence showed moderate certainty that CHM plus oxaliplatin-based chemotherapy may promote improvement in tumor response in AGC. CHM treatment is safe for AGC. Due to the poor quality of included RCTs and small samplesizes, the quality of synthesized evidence was not high. Specific combinations of herbs appeared to produce higher contributions to ORR than the herb individually. Each of this seven above mentioned herbs has been shown in experimental studies to potentially contribute to the improvement of tumor response. To support this conclusion, these seven herbs are worthy of further clinical research.Systematic Review Registration: [http://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=262595], identifier [CRD42022262595].
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- 2022
3. Functionalised molybdenum disulfide nanosheets for co-delivery of doxorubicin and siRNA for combined chemo/gene/photothermal therapy on multidrug-resistant cancer
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Zhenzhen Nong, Taicheng Lu, Guo Li, Fa-Yan Meng, Liying Wei, Chuanan Liao, Mei Wei, Xuehua Li, and Xin Pan
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Combination therapy ,Biocompatibility ,Cell Survival ,Photothermal Therapy ,Pharmaceutical Science ,Antineoplastic Agents ,Breast Neoplasms ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Cell Line, Tumor ,medicine ,Humans ,Doxorubicin ,Disulfides ,RNA, Small Interfering ,Molybdenum ,Pharmacology ,Chemistry ,Cancer ,Genetic Therapy ,Photothermal therapy ,021001 nanoscience & nanotechnology ,medicine.disease ,Combined Modality Therapy ,Drug Resistance, Multiple ,0104 chemical sciences ,Treatment Outcome ,Drug Resistance, Neoplasm ,Drug delivery ,Cancer cell ,Cancer research ,Nanocarriers ,Nanoparticle Drug Delivery System ,0210 nano-technology ,medicine.drug - Abstract
Objective Molybdenum disulfide (MoS2) has been developed for medical uses due to its excellent medically beneficial characteristics. This research was designed to develop a multifunctional nano-drug delivery system based on the nano-structure of MoS2 for combined chemo/gene/photothermal therapy targeting multidrug-resistant cancer. Methods MoS2 nanosheets were prepared by a hydrothermal reaction and modified. Afterward, the nanocarrier was characterised. In vitro cytotoxicity of the drug delivery systems on human breast adenocarcinoma cell lines was assessed. Key findings The nanocarrier was a flake-like structure with a uniform hydrodynamic diameter and possessing good colloidal stability. The nanocarrier showed the capacity to be deployed for co-delivery of Doxorubicin (DOX) and siRNA. The release of DOX could be triggered and enhanced by pH and application of near-infrared (NIR) laser. The nanocarrier had a good photothermic response and stability. The nanocarrier had little effect on the cells and exhibited good biocompatibility. Measurement of the therapeutic efficacy showed that synergistic therapy combining chemo-, gene- and photothermal therapy deploying this drug delivery system will achieve a better anticancer effect on drug-resistant cancer cells than DOX alone. Conclusions Our results suggest that this drug delivery system has potential application in the therapeutic strategy for drug-resistant cancer.
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- 2021
4. Preparation and anti-cancer activity of transferrin/folic acid double-targeted graphene oxide drug delivery system
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Xuehua Li, Cheng Liu, Guo Li, Bingling Tang, Qixiao Qin, Mei Wei, Fa-Yan Meng, Zhenzhen Nong, Liying Wei, Wu Nini, and Taicheng Lu
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Drug ,media_common.quotation_subject ,Cell ,Biomedical Engineering ,02 engineering and technology ,Pharmacology ,010402 general chemistry ,01 natural sciences ,Biomaterials ,Drug Delivery Systems ,Folic Acid ,Cell Line, Tumor ,medicine ,Humans ,Doxorubicin ,media_common ,chemistry.chemical_classification ,Antibiotics, Antineoplastic ,Liver Neoplasms ,Transferrin ,Cancer ,021001 nanoscience & nanotechnology ,medicine.disease ,0104 chemical sciences ,medicine.anatomical_structure ,chemistry ,Delayed-Action Preparations ,Hepatocellular carcinoma ,Drug delivery ,Toxicity ,Graphite ,0210 nano-technology ,medicine.drug - Abstract
In this study, a transferrin/folic acid double-targeting graphene oxide drug delivery system loaded with doxorubicin was designed. Graphene oxide was prepared by ultrasound improved Hummers method and was modified with Pluronic F68, folic acid, and transferrin to decrease its toxicity and to allow dual-targeting. The results show that the double target drug delivery system (TFGP*DOX) has good and controllable drug delivery performance with no toxicity. Moreover, TFGP*DOX has a better inhibitory effect on SMMC-7721 cells than does a single target drug delivery system (FGP*DOX). The results of drug release analysis and cell inhibition studies showed that TFGP*DOX has a good sustained release function that can reduce the drug release rate in blood circulation over time and improve the local drug concentration in or near a targeted tumor. Therefore, the drug loading system (TFGP*DOX) has potential application value in the treatment of hepatocellular carcinoma.
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- 2020
5. Chinese patent medicine Kanglaite injection for non-small-cell lung cancer: An overview of systematic reviews
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Taicheng, Lu, Jingwen, Yu, Ruike, Gao, Jia, Wang, Heping, Wang, Xinmiao, Wang, Bowen, Xu, Luchang, Cao, Jingyuan, Wu, Baoyi, Ni, Shixin, Li, and Jie, Li
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Pharmacology ,China ,Lung Neoplasms ,Carcinoma, Non-Small-Cell Lung ,Drug Discovery ,Quality of Life ,Humans ,Nonprescription Drugs ,Leukopenia ,Systematic Reviews as Topic - Abstract
Kanglaite injection (KLTi), a Chinese herbal medicine, is used as an adjuvant treatment for non-small-cell lung cancer (NSCLC).To provide an evidence-based endorsement for the clinical application and selection of KLTi by evaluating the reporting quality, methodological quality, risk of bias, and evidence quality of systemic reviews (SRs).SRs of KLTi adjuvant therapy of NSCLC were searched by using 12 databases, consulting experts, and retrieving relevant conference papers until 2022.03.24. The treatment group received KLTi in combination with other therapies, regardless of dosage, duration, or the therapy combined. Network meta-analyses and SRs using repeated data were excluded. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines 2009, A MeaSurement Tool to Assess systematic Reviews, Risk of Bias in Systematic Review, and the Grading of Recommendations Assessment, Development and Evaluation were used to assess the quality of reports, methodological quality, risk of bias, and level of evidence; R was used for visual analysis of the relevant contents.Twenty SRs (13 Chinese and 7 English articles), all authored by Chinese authors as the first author, were included. The reporting information of most included studies was relatively complete (21-27 points), accounting for three-fourths of the total literature. The quality of the methods used in all studies was critically low. The risk of bias was mostly high. Results of the evidence summary showed that among the "moderate" evidence, KLTi combined with chemotherapy had benefits of 9.7-16.4% for objective response rate (ORR) (11 SRs), 8.1-14% for disease control rate (four SRs), and 20.1-28.6% for quality of life (12 SRs) compared with those of chemotherapy alone. The incidence of gastrointestinal symptoms (five SRs) was reduced by 11.5%-23.2%, while that of leukopenia (four SRs) improved by 19.5-29.2%. Combined radiotherapy and targeted therapy had benefits of 25.9% and 16.8%, respectively, in ORR and 31.3% and 22.8%, respectively, in quality of life (the quality of evidence was "low"). The results depicted that treatment with two courses of KLTi produce the best results.Our results suggest that KLTi, whether combined with chemotherapy, radiotherapy, or targeted therapy, has an effect on ORR and quality of life and induces adverse reactions, such as leukopenia, nausea, and vomiting. It may improve patient survival; however, the impact of its low-grade quality on the immune function remains undetermined. Owing to the low reporting quality and methodological quality and high risk of bias of the SRs and the included studies, clinical application of KLTi remains unelucidated; higher-quality SRs and randomized controlled trials are necessary in the future.
- Published
- 2023
6. Efficacy and Safety of Brucea javanica Oil Emulsion Injection in the Treatment of Gastric Cancer: A Systematic Review and Meta-Analysis
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Xinmiao Wang, Heping Wang, Luchang Cao, Jingyuan Wu, Taicheng Lu, Shixin Li, and Jie Li
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safety ,meta-analysis ,Nutrition and Dietetics ,Nutrition. Foods and food supply ,gastric cancer ,Endocrinology, Diabetes and Metabolism ,efficacy ,Brucea javanica oil emulsion injection ,TX341-641 ,Food Science - Abstract
Background: Gastric cancer (GC) is one of the most common digestive tract cancers and ranks fifth in the incidence of malignant tumors worldwide. Brucea javanica oil emulsion injection (BJOEI), a Chinese patent medicine extracted from Brucea javanica (Yadanzi in Chinese Pinyin), is widely used as an adjuvant treatment for GC in China. This systematic review and meta-analysis aimed to evaluate the available data on the efficacy and safety of BJOEI in the treatment of GC and assess the quality of the synthesized evidence.Methods: A comprehensive search was performed on PubMed, EMBASE, CENTRAL, Web of Science, Chinese Biomedical Literature Database (CBM), China National Knowledge Infrastructure (CNKI), Wanfang database and Chinese Scientific Journals Database (VIP database), and other potential resources, such as the Chinese Clinical Trial Registry (ChiCTR) and ClinicalTrials.gov from their inception to July 31, 2021. Randomized controlled trials (RCTs) comparing the therapeutic effects of BJOEI combined with conventional therapy to those of conventional therapy alone were included. We used RevMan 5.3 for data analysis and quality evaluation of the included studies and assessed the evidence quality based on the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria.Results: Eighteen RCTs involving 1,210 patients were included, and the meta-analysis results demonstrated that compared with the control group (conventional therapy), the experimental group (BJOEI combined with conventional therapy) showed a significantly improved overall response rate (ORR) (risk ratio [RR] = 1.52, 95% CI: 1.36–1.69, P < 0.00001), clinical benefit rate (CBR) (RR = 1.17, 95% CI: 1.11–1.23, P < 0.00001), performance status (RR = 1.72, 95% CI: 1.46–2.01, P < 0.00001), and reduced incidence of the following adverse drug reactions (ADRs): neutropenia, leukopenia, nausea and vomiting, diarrhea, liver damage, hand-foot syndrome, and peripheral sensory nerve toxicity. Subgroup analysis showed that the BJOEI intervention could significantly improve the ORR and CBR in patients with GC when combined with FOLFOX4, XELOX, and other chemotherapeutics.Conclusion: The evidence presented in this study supports the fact that BJOEI combined with conventional chemotherapy provides a statistically significant and clinically important effect in the improvement of ORR, CBR, performance status, and ADR reduction in patients with GC. To further support this conclusion, more rigorously designed, large-scale, and multicenter RCTs are needed in the future.
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- 2021
7. Traditional Chinese Medicine Therapy for Esophageal Cancer: A Literature Review
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Xin-miao Wang, Shixin Li, Jie Li, Taicheng Lu, Guanghui Zhu, Heping Wang, Jingyuan Wu, and Luchang Cao
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medicine.medical_specialty ,Esophageal Neoplasms ,mechanism ,Context (language use) ,Traditional Chinese medicine ,Review Article ,Metastasis ,traditional Chinese medicine ,medicine ,Humans ,In patient ,esophageal cancer ,Medicine, Chinese Traditional ,Precision Medicine ,Intensive care medicine ,RC254-282 ,therapy ,business.industry ,Therapeutic effect ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Esophageal cancer ,medicine.disease ,Precision medicine ,Oncology ,business ,Western medicine ,complementary and alternative medicine ,Drugs, Chinese Herbal - Abstract
Esophageal cancer (EC) is the sixth leading cause of cancer-related deaths worldwide. Western medicine has played a leading role in its treatment, but its prognosis remains unsatisfactory. Therefore, the development of effective therapies is important. Traditional Chinese medicine (TCM) has been practiced for thousands of years, and involves taking measures before diseases occur, deteriorate, and recur. Interestingly, there is growing evidence that TCM can improve the therapeutic effects in reversing precancerous lesions, inhibiting the recurrence and metastasis of EC. In this article, we review traditional Chinese herbs and formulas that have preventive and therapeutic effects on EC, summarize the application and research status of TCM in patients with EC, and discuss its shortcomings and prospects in the context of translational, evidence-based, and precision medicine.
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- 2021
8. Efficacy and Safety of Brucea javanica Oil Emulsion Injection for Treating Gastric Cancer: A Protocol for a Systematic Review and Meta Analysis
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Jingyuan Wu, Shixin Li, Heping Wang, Xinmiao Wang, Jie Li, Luchang Cao, and Taicheng Lu
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Protocol (science) ,medicine.medical_specialty ,Evaluation system ,Article Subject ,ved/biology ,business.industry ,ved/biology.organism_classification_rank.species ,MEDLINE ,Cancer ,medicine.disease ,Oil emulsion ,Other systems of medicine ,Brucea javanica ,Complementary and alternative medicine ,Meta-analysis ,medicine ,Medical physics ,Clinical efficacy ,business ,RZ201-999 ,Research Article - Abstract
Introduction. Brucea javanica oil emulsion injection (BJOEI) is an antitumor drug extracted from the traditional Chinese medicinal plant Brucea javanica, which has broad prospects as an adjuvant treatment for gastric cancer (GC); however, its efficacy and safety are still controversial. We plan to conduct a systematic review and meta-analysis to summarise the clinical efficacy and safety of BJOEI in the treatment of GC and provide credible evidence for the clinical application and subsequent studies of BJOEI. Methods and Analysis. This systematic review will include articles identified by electronically searching the following databases: PubMed, EMBASE, CENTRAL, Web of Science, the Chinese Biomedical Literature Database (CBM), the China National Knowledge Infrastructure (CNKI), Wanfang Database, and Chinese Scientific Journals Database (VIP Database) from inception to 31 July 2021. The primary outcomes of this research will be the clinical total effective rate, performance status, and adverse drug reactions (ADRs). The systematic review will be performed using RevMan 5 software. Finally, we will use the Grading of Recommendations Assessment, Development and Evaluation System (GRADE) to assess the quality of evidence. Ethics and Dissemination. Ethical approval is not required for literature-based studies. The results of this systematic review will be published in a peer-reviewed journal. PROSPERO registration number: CRD42021265646.
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- 2021
9. Efficacy and Safety of
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Xinmiao, Wang, Heping, Wang, Luchang, Cao, Jingyuan, Wu, Taicheng, Lu, Shixin, Li, and Jie, Li
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safety ,meta-analysis ,gastric cancer ,efficacy ,Brucea javanica oil emulsion injection ,Review ,Nutrition - Abstract
Background: Gastric cancer (GC) is one of the most common digestive tract cancers and ranks fifth in the incidence of malignant tumors worldwide. Brucea javanica oil emulsion injection (BJOEI), a Chinese patent medicine extracted from Brucea javanica (Yadanzi in Chinese Pinyin), is widely used as an adjuvant treatment for GC in China. This systematic review and meta-analysis aimed to evaluate the available data on the efficacy and safety of BJOEI in the treatment of GC and assess the quality of the synthesized evidence. Methods: A comprehensive search was performed on PubMed, EMBASE, CENTRAL, Web of Science, Chinese Biomedical Literature Database (CBM), China National Knowledge Infrastructure (CNKI), Wanfang database and Chinese Scientific Journals Database (VIP database), and other potential resources, such as the Chinese Clinical Trial Registry (ChiCTR) and ClinicalTrials.gov from their inception to July 31, 2021. Randomized controlled trials (RCTs) comparing the therapeutic effects of BJOEI combined with conventional therapy to those of conventional therapy alone were included. We used RevMan 5.3 for data analysis and quality evaluation of the included studies and assessed the evidence quality based on the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria. Results: Eighteen RCTs involving 1,210 patients were included, and the meta-analysis results demonstrated that compared with the control group (conventional therapy), the experimental group (BJOEI combined with conventional therapy) showed a significantly improved overall response rate (ORR) (risk ratio [RR] = 1.52, 95% CI: 1.36–1.69, P < 0.00001), clinical benefit rate (CBR) (RR = 1.17, 95% CI: 1.11–1.23, P < 0.00001), performance status (RR = 1.72, 95% CI: 1.46–2.01, P < 0.00001), and reduced incidence of the following adverse drug reactions (ADRs): neutropenia, leukopenia, nausea and vomiting, diarrhea, liver damage, hand-foot syndrome, and peripheral sensory nerve toxicity. Subgroup analysis showed that the BJOEI intervention could significantly improve the ORR and CBR in patients with GC when combined with FOLFOX4, XELOX, and other chemotherapeutics. Conclusion: The evidence presented in this study supports the fact that BJOEI combined with conventional chemotherapy provides a statistically significant and clinically important effect in the improvement of ORR, CBR, performance status, and ADR reduction in patients with GC. To further support this conclusion, more rigorously designed, large-scale, and multicenter RCTs are needed in the future.
- Published
- 2021
10. Functionalized Graphene Oxide as Drug Delivery Systems for Platinum Anticancer Drugs
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Guo Li, Qixiao Qin, Mei Wei, Liying Wei, Fayan Meng, Wei Yiming, Taicheng Lu, Zhenzhen Nong, Xin Pan, and Xuehua Li
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Drug ,Cisplatin ,Drug Carriers ,media_common.quotation_subject ,Pharmaceutical Science ,chemistry.chemical_element ,Antineoplastic Agents ,Combinatorial chemistry ,Carboplatin ,Oxaliplatin ,Chitosan ,chemistry.chemical_compound ,Drug Liberation ,Drug Delivery Systems ,chemistry ,Drug delivery ,Spectroscopy, Fourier Transform Infrared ,medicine ,Graphite ,Nanocarriers ,Platinum ,media_common ,medicine.drug - Abstract
Graphene Oxide, prepared by the modified Hummer's method, was modified with a series of high polymers (polyethyleneimine, polyethylene glycol, chitosan) and Folic Acid for the delivery of platinum anticancer drugs including Cisplatin, Carboplatin, Oxaliplatin and Eptaplatin. Nanocarriers were successfully prepared and characterized by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscope. Measurement of drug loading efficiency showed that these nanocarriers had the ability for effective delivery of the platinum anticancer drugs. The Maximum loading ratios of Cisplatin, Carboplatin, Oxaliplatin and Eptaplatin were 25.72, 161.08, 345.21 and 67.80 μg/mg. Drug release experiments in the acid environment showed that the cumulative release rate of platinum anticancer drugs from nanocarriers was higher than that in the neutral environment. The cumulative release of all three nanocarriers in the acid environment reached above 60%. In vitro cytotoxicity assay showed that those nanocarriers had a low toxicity. The cell viability rates were above 80% for all three nanocarriers. Investigation of the anticancer activity in vitro showed that those drug delivery systems had the ability to inhibit the growth of the SKOV3 cell line. These results showed that those nanocarriers were suitable for the delivery of platinum anticancer drugs. Providing preliminary advice on the potential application of the combination of platinum anticancer drugs and the functionalized Graphene Oxide nanocarriers.
- Published
- 2021
11. A potentially valuable nano graphene oxide/USPIO tumor diagnosis and treatment system
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Xin Pan, Liying Wei, Xiaoqing Huang, Xuehua Li, Zhenzhen Nong, Mei Wei, Fayan Meng, Qixiao Qin, Taicheng Lu, Guo Li, Bingling Tang, Yin Li, and Meishi Pan
- Subjects
Treatment system ,Chemotherapy ,Cancer chemotherapy ,Materials science ,Combination therapy ,medicine.medical_treatment ,Dextrans ,Oxides ,Bioengineering ,Tumor site ,Biomaterials ,Mechanics of Materials ,In vivo ,Neoplasms ,Nano ,medicine ,Humans ,Graphite ,Magnetite Nanoparticles ,Inhibitory effect ,Biomedical engineering - Abstract
Due to increased requirements for precision cancer treatment, cancer chemotherapy and combination therapies have gradually developed in the direction of diagnosis and treatment integration. In this study, a non-toxic nano carrier that demonstrates integrated MRI signal enhancing performance, as well as better chemotherapy and photothermal conversion performance, was prepared and characterized. Furthermore, the carrier was used to construct an integrated system of tumor diagnosis and treatment. Our in vitro studies showed that this system has a considerable inhibition effect on tumor cells during the treatment of chemotherapy when combined with PTT, and in vivo studies showed that the system could improve the MRI signal of the tumor site with application of a safe dosage. Thus, this system based on NGO/USPIO has the potential to be a multi-functional nano drug delivery system integrating diagnosis and treatment benefits and applications that are worthy of further research.
- Published
- 2021
12. Reductive response and RGD targeting nano-graphene oxide drug delivery system
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Guo Li, Meishi Pan, Wu Nini, Xin Pan, Wei Yiming, Mei Wei, Taicheng Lu, Huang Jing, Yang Yanfang, Fa-Yan Meng, Xuehua Li, and Zhenzhen Nong
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chemistry.chemical_classification ,Pharmaceutical Science ,Peptide ,02 engineering and technology ,Glutathione ,Polyethylene glycol ,021001 nanoscience & nanotechnology ,030226 pharmacology & pharmacy ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,chemistry ,Targeted drug delivery ,Drug delivery ,Cancer cell ,Biophysics ,medicine ,Doxorubicin ,0210 nano-technology ,Drug carrier ,medicine.drug - Abstract
Cancer cell therapy using redox response and targeted drug delivery systems can increase therapeutic effects of anti-cancer therapy. Here, we report a redox-responsive drug carrier based on nanoscale Graphene Oxide (GO) loaded with Doxorubicin (DOX). In this drug carrier demonstration, we utilized Arginine-glycine-aspartic acid (RGD) peptide, aminated polyethylene glycol (6ARM-PEG-NH2, PEG-NH2) to functionalize the GO. To integrate the carrier with a redox responsive property, we utilized disulfide linkages (3,3′-dithiodipropionic acid (DTPA)), which can be cleaved by glutathione (GSH) combined with the PEG-NH2. Our results show that DOX is rapidly released in a pH = 5.50 PBS solution with GSH concentration of 10 mM. The drug-loading system (RGD-GO-PEG-S-S-DOX) combined with photo-thermotherapy possesses good inhibition activity of Hep-G2 cells at a relatively low concentration. When the concentration of RGD-GO-PEG-S-S-DOX was 1.56 μg/mL, the inhibition activity of Hep-G2 cells was 78%. Because tumor cells generally exhibit a higher concentration of GSH than normal ones, and tumor blood vessels are distorted and dilated, and the blood flow resistance tends to be large, tumor cells are more sensitive to temperature changes than normal tissues. Thus, drug delivery systems, like the one we studied, have potential applications in a therapeutic strategy for the treatment of liver cancer.
- Published
- 2019
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