1.Efficacy and safety of rituximab in children and adolescents with mature B-cell non-Hodgkin's lymphoma: a Meta analysis.
Bi-Yun LI ; Ya-Hui HAN ; Chu-Yun YIN ; Wei-Chuang DU ; Yuan-Fang LI ; Ying-Chao WANG
Chinese Journal of Contemporary Pediatrics 2023;25(1):51-59
OBJECTIVES:
To study the efficacy and safety of rituximab combined with chemotherapy in the treatment of children and adolescents with mature B-cell non-Hodgkin's lymphoma (B-NHL) through a Meta analysis.
METHODS:
The databases including PubMed, Embase, the Cochrane Library, ClinicalTrials.gov, Web of Science, China National Knowledge Infrastructure, Wanfang Data, and Weipu were searched to obtain 10 articles on rituximab in the treatment of mature B-NHL in children and adolescents published up to June 2022, with 886 children in total. With 3-year event-free survival (EFS) rate, 3-year overall survival (OS) rate, complete remission rate, mortality rate, and incidence rate of adverse reactions as outcome measures, RevMan 5.4 software was used for Meta analysis, subgroup analysis, sensitivity analysis, and publication bias analysis.
RESULTS:
The rituximab+chemotherapy group showed significant increases in the 3-year EFS rate (HR=0.38, 95%CI: 0.25-0.59, P<0.001), 3-year OS rate (HR=0.29, 95%CI: 0.14-0.61, P=0.001), and complete remission rate (OR=3.72, 95%CI: 1.89-7.33, P<0.001) as well as a significant reduction in the mortality rate (OR=0.31, 95%CI: 0.17-0.57, P<0.001), as compared with the chemotherapy group without rituximab. There was no significant difference in the incidence rate of adverse reactions between the two groups (OR=1.28, 95%CI: 0.85-1.92, P=0.24).
CONCLUSIONS
The addition of rituximab to the treatment regimen for children and adolescents with mature B-cell non-Hodgkin's lymphoma can bring significant survival benefits without increasing the incidence of adverse reactions.
Child
;
Adolescent
;
Humans
;
Rituximab/adverse effects*
;
Lymphoma, B-Cell/drug therapy*
;
Progression-Free Survival
;
Remission Induction
;
China
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
2.Chemerin promotes proliferation and migration of ovarian cancer cells by upregulating expression of PD-L1.
Chenxi GAO ; Jinming SHI ; Jingxin ZHANG ; Yin LI ; Yi ZHANG
Journal of Zhejiang University. Science. B 2022;23(2):164-170
Ovarian cancer is the third-most-common malignant reproductive tumor in women. According to the American Cancer Society, it has the highest mortality rate of gynecological tumors. The five-year survival rate was only 29% during the period from 1975 to 2008 (Reid et al., 2017). In recent decades, the five-year survival rate of ovarian cancer has remained around 30% despite continuous improvements in surgery, chemotherapy, radiotherapy, and other therapeutic methods. However, because of the particularity of the volume and location of ovarian tissue, the early symptoms of ovarian cancer are hidden, and there is a lack of highly sensitive and specific screening methods. Most patients have advanced metastasis, including abdominal metastasis, when they are diagnosed (Reid et al., 2017). Therefore, exploring the mechanism of ovarian cancer metastasis and finding early preventive measures are key to improving the survival rate and reducing mortality caused by ovarian cancer.
B7-H1 Antigen/biosynthesis*
;
Cell Proliferation/drug effects*
;
Chemokines/biosynthesis*
;
Female
;
Humans
;
Ovarian Neoplasms/pathology*
;
Survival Rate
;
Up-Regulation
3.Human Serum-derived Extracellular Vesicles Protect A549 from PM
Qiu Lian ZHOU ; Yu Zheng BAI ; Juan GAO ; Yi DUAN ; Yi Cheng LYU ; Long Fei GUAN ; Kenneth ELKIN ; Yu Ling XIE ; Zheng JIAO ; Hong Yun WANG
Biomedical and Environmental Sciences 2021;34(1):40-49
Objective:
Epidemiological studies reveal that exposure to fine particulate matter (aerodynamic diameter ≤ 2.5 μm, PM
Methods:
EVs were isolated from the serum of healthy subjects, quantified
Results:
PM
Conclusions
EVs treatment promotes cell survival and attenuates PM
A549 Cells
;
Air Pollutants/toxicity*
;
Apoptosis/drug effects*
;
Cell Survival/drug effects*
;
Extracellular Vesicles
;
Humans
;
Male
;
Middle Aged
;
Particulate Matter/toxicity*
;
Protective Agents/pharmacology*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Serum
4.Assessment of Benchmark Dose in BEAS-2B Cells by Evaluating the Cell Relative Viability with Particulates in Motorcycle Exhaust
Tao YU ; Xue Yan ZHANG ; Shu Fei LI ; Yu Mei ZHOU ; Bin LI ; Zhong Xu WANG ; Yu Fei DAI ; Sherleen Xue-Fu ADAMSON ; Yu Xin ZHENG ; Ping BIN
Biomedical and Environmental Sciences 2021;34(4):272-281
Objective:
This study aimed to use an air-liquid interface (ALI) exposure system to simulate the inhalation exposure of motorcycle exhaust particulates (MEPs) and then investigate the benchmark dose (BMD) of MEPs by evaluating cell relative viability (CRV) in lung epithelial BEAS-2B cells.
Methods:
The MEPs dose was characterized by measuring the number concentration (NC), surface area concentration (SAC), and mass concentration (MC). BEAS-2B cells were exposed to MEPs at different concentrations
Results:
Our results reveal that BMD of NC and SAC were estimated by the best-fitting Hill model, while MC was estimated by Polynomial model. The BMDL for CRV following ALI exposure to MEPs were as follows: 364.2#/cm
Conclusion
These results indicate that MEPs exposure
Benchmarking/statistics & numerical data*
;
Bronchi/physiology*
;
Cell Line
;
Cell Survival/drug effects*
;
Epithelial Cells/physiology*
;
Humans
;
Motorcycles
;
Particulate Matter/adverse effects*
;
Vehicle Emissions/analysis*
5.Effects of stachyine on apoptosis in an Aβ-induced PC12 cell model of Alzheimer's disease.
Liangchao QU ; Jiajia HUANG ; Mingda FAN ; Yuchen HAO ; Jinxiu YAN
Journal of Zhejiang University. Medical sciences 2020;40(7):1023-1028
OBJECTIVE:
To investigate the effects of stachydrine (STA) on apoptosis of Aβ-induced PC12 cells mimicking Alzheimer's disease and explore the mechanisms.
METHODS:
The differential genes of STA were analyzed based on GSE85871 data, and the target genes of STA were identified using STITCH database. PC12 cells were treated with Aβ to establish a cell model of Alzheimer's disease, and the changes in cell viability and cell cycle in response to STA treatment were assessed using MTT assay and flow cytometry, respectively. RT-PCR and Western blotting were used to detect the relevant gene or protein expressions in the treated cells.
RESULTS:
GSE85871 data showed 37 up-regulated genes and 48 down-regulated genes in cells following treatment with STA. Analysis of the data from the STITCH database indicated that RPS8 and EED were the target genes of STA. Treatment of PC12 cells with Aβ significantly lowered the cell viability ( < 0.05) and the expressions of RPS8 and EED at both the mRNA and protein levels ( < 0.05), and obviously inhibited the expression of apoptosis-related proteins Bcl-2 and p53 ( < 0.05). STA treatment of the cells significantly reversed the effect of Aβ and induced cell cycle arrest in G2/M phase, causing also significantly increases in the expression levels of RPS8, EED, Bcl-2 and p53 ( < 0.05).
CONCLUSIONS
STA plays an important role in inhibiting the apoptosis of PC12 cells induced by Aβ possibly by regulating RPS8 and EED expression to promote the expressions of Bcl-2 and p53.
Alzheimer Disease
;
Animals
;
Apoptosis
;
drug effects
;
Cell Survival
;
drug effects
;
Gene Expression Regulation
;
drug effects
;
Models, Biological
;
PC12 Cells
;
Proline
;
analogs & derivatives
;
pharmacology
;
Rats
6.Protective effect of iridoid glycosides of radix scrophulariae on endoplasmic reticulum stress induced by oxygen-glucose deprivation and reperfusion
Jiayi YE ; Hengpei GONG ; Lingfeng WANG ; Zhen HUANG ; Fengmei QIU ; Xiaoming ZHONG
Journal of Zhejiang University. Medical sciences 2020;49(6):705-713
OBJECTIVE:
To investigate the regulatory effect of iridoid glycoside of radix scrophulariae (IGRS) on endoplasmic reticulum stress induced by oxygen-glucose deprivation and reperfusion
METHODS:
Rat pheochromocytoma PC12 cells were pretreated with IGRS (50, 100, 200 μg/mL) for 24h, and the
RESULTS:
The damage caused by OGD/R to PC12 cells was significantly reduced by IGRS, with significant effect on increasing survival rate and reducing LDH release (all
CONCLUSIONS
IGRS has neuroprotective effect, which may alleviate cerebral ischemia-reperfusion injury by regulating SERCA2, maintaining calcium balance, and inhibiting endoplasmic reticulum stress-mediated apoptosis.
Animals
;
Cell Survival/drug effects*
;
Down-Regulation/drug effects*
;
Endoplasmic Reticulum Stress/drug effects*
;
Glucose
;
In Vitro Techniques
;
Iridoid Glycosides/pharmacology*
;
Oxygen
;
PC12 Cells
;
Rats
;
Reperfusion
;
Reperfusion Injury/prevention & control*
;
Snails/chemistry*
7.Clinical response and safety of apatinib monotherapy in recurrent, metastatic cervical cancer after failure of chemotherapy: a retrospective study
Yan XIAO ; Huijun CHENG ; Li WANG ; Xiao YU
Journal of Gynecologic Oncology 2020;31(1):2-
cell carcinoma, 8 with adenocarcinoma, and 2 with adenosquamous carcinoma. Progression-free survival (PFS), overall survival (OS), and treatment-related adverse events (AEs) were reviewed and evaluated.RESULTS: All patients had complete follow-up records, and the median follow-up time was 14.5 months (5.5–20.5 months). Among the 48 patients, 14.58% achieved a partial response and 52.08% achieved stable disease. The overall response rate and disease control rate were 14.58% and 66.67%, respectively. The median time that the 48 patients received oral apatinib was 8.2 months. The median PFS was 4.6 months (95% confidence interval [CI]=3.31–5.26) and OS was 13.9 months (95% CI=8.37–17.96). The main apatinib-related adverse reactions were leukopenia (37.5%), neutropenia (41.67%), hemorrhage (37.5%), hypertension (33.33%), proteinuria (12.5%), fatigue (37.5%), and hand-foot syndrome (27.08%). Most of them were grade 1–2, and no drug-related death occurred.CONCLUSIONS: Apatinib can improve the disease control rate of recurrent and metastatic cervical cancer when chemotherapy has failed, and the treatment is well tolerated. This represents that apatinib may be a new treatment option for metastatic cervical cancer patients.]]>
Adenocarcinoma
;
Carcinoma, Adenosquamous
;
Carcinoma, Squamous Cell
;
Disease-Free Survival
;
Drug Therapy
;
Drug-Related Side Effects and Adverse Reactions
;
Fatigue
;
Follow-Up Studies
;
Hand-Foot Syndrome
;
Hemorrhage
;
Humans
;
Hypertension
;
Leukopenia
;
Molecular Targeted Therapy
;
Neutropenia
;
Proteinuria
;
Radiotherapy
;
Retrospective Studies
;
Uterine Cervical Neoplasms
8.Inhibition of autophagy suppresses osteogenic differentiation of stem cells from apical papilla.
Ying HUANG ; Huacui XIONG ; Ke CHEN ; Xiaobin ZHU ; Xiaoping YIN ; Yun LIANG ; Wei LUO ; Qiyin LEI
Journal of Southern Medical University 2019;39(1):106-112
OBJECTIVE:
To investigate the effects of autophagy on osteogenic differentiation of stem cells from the apical papilla (SCAPs) in the presence of tumor necrosis factor- (TNF-) stimulation .
METHODS:
SCAPs treated with TNF- (0, 5, and 10 ng/mL) with or without 5 mmol/L 3-MA were examined for the expression of autophagy marker LC3-Ⅱ using Western blotting. The cells were transfected with GFP-LC3 plasmid and fluorescence microscopy was used for quantitative analysis of intracellular GFP-LC3; AO staining was used to detect the acidic vesicles in the cells. The cell viability was assessed with CCK-8 assays and the cell apoptosis rate was analyzed using flow cytometry. The cells treated with TNF- or with TNF- and 3-MA were cultured in osteogenic differentiation medium for 3 to 14 days, and real- time PCR was used to detect the mRNA expressions of osteogenesis-related genes (ALP, BSP, and OCN) for evaluating the cell differentiation.
RESULTS:
TNF- induced activation of autophagy in cultured SCAPs. Pharmacological inhibition of TNF--induced autophagy by 3-MA significantly decreased the cell viability and increased the apoptosis rate of SCAPs ( < 0.05). Compared with the cells treated with TNF- alone, the cells treated with both TNF- and 3-MA exhibited decreased expressions of the ALP and BSP mRNA on days 3, 7 and 14 during osteogenic induction ( < 0.05) and decreased expression of OCN mRNA on days 3 and 7 during the induction ( < 0.05).
CONCLUSIONS
Autophagy may play an important role during the osteogenic differentiation of SCAPs in the presence of TNF- stimulation.
Autophagy
;
drug effects
;
physiology
;
Cell Differentiation
;
drug effects
;
physiology
;
Cell Survival
;
drug effects
;
Cells, Cultured
;
Dental Papilla
;
cytology
;
Green Fluorescent Proteins
;
Humans
;
Osteogenesis
;
physiology
;
Stem Cells
;
drug effects
;
physiology
;
Transfection
;
Tumor Necrosis Factor-alpha
;
administration & dosage
;
antagonists & inhibitors
;
pharmacology
9.Eight new cytotoxic annonaceous acetogenins from the seeds of Annona squamosa.
Cheng-Yao MA ; Jia-Hui LU ; Xiang LI ; Xiao LIU ; Jian-Wei CHEN
Chinese Journal of Natural Medicines (English Ed.) 2019;17(4):291-297
Eight new annonaceous acetogenins, squamotin A-D (1-4), annosquatin IV-V (5 and 6), muricin O (7) and squamosten B (8), together with four known ones (9-12) were isolated from the seeds of Annona squamosa. Their structures were elucidated by chemical methods and spectral data. The inhibitory activities of compound 1-9 against three multidrug resistance cell lines were evaluated. All tested compounds showed strong cytotoxicity.
Acetogenins
;
chemistry
;
isolation & purification
;
pharmacology
;
toxicity
;
Annona
;
chemistry
;
Antineoplastic Agents, Phytogenic
;
chemistry
;
isolation & purification
;
pharmacology
;
toxicity
;
Cell Line, Tumor
;
Cell Survival
;
drug effects
;
Drug Resistance, Neoplasm
;
drug effects
;
Drug Screening Assays, Antitumor
;
Humans
;
Molecular Structure
;
Plant Extracts
;
chemistry
;
pharmacology
;
toxicity
;
Seeds
;
chemistry
10.Involvement of mitochondrial apoptotic pathway and MAPKs/NF-κ B inflammatory pathway in the neuroprotective effect of atractylenolide III in corticosterone-induced PC12 cells.
Wen-Xia GONG ; Yu-Zhi ZHOU ; Xue-Mei QIN ; Guan-Hua DU
Chinese Journal of Natural Medicines (English Ed.) 2019;17(4):264-274
Atractylenolide III (ATL-III), a sesquiterpene compound isolated from Rhizoma Atractylodis Macrocephalae, has revealed a number of pharmacological properties including anti-inflammatory, anti-cancer activity, and neuroprotective effect. This study aimed to evaluate the cytoprotective efficiency and potential mechanisms of ATL-III on corticosterone injured rat phaeochromocytoma (PC12) cells. Our results demonstrate that ATL-III increases cell viability and reduces the release of lactate dehydrogenase (LDH). The results suggest that ATL-III protects PC12 cells from corticosterone-induced injury by inhibiting the intracellular Ca overloading, inhibiting the mitochondrial apoptotic pathway and modulating the MAPK/NF-ΚB inflammatory pathways. These findings provide a novel insight into the molecular mechanism by which ATL-III protected the PC12 cells against corticosterone-induced injury for the first time. Our results provide the evidence that ATL-III may serve as a therapeutic agent in the treatment of depression.
Animals
;
Apoptosis
;
drug effects
;
Calcium
;
metabolism
;
Cell Survival
;
drug effects
;
Corticosterone
;
toxicity
;
Inflammation Mediators
;
metabolism
;
L-Lactate Dehydrogenase
;
metabolism
;
Lactones
;
pharmacology
;
Mitochondria
;
drug effects
;
metabolism
;
Mitogen-Activated Protein Kinases
;
metabolism
;
NF-kappa B
;
metabolism
;
Neuroprotective Agents
;
pharmacology
;
PC12 Cells
;
Phosphorylation
;
drug effects
;
Rats
;
Sesquiterpenes
;
pharmacology
;
Signal Transduction
;
drug effects

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