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OBJECTIVE@#To investigate the expressions of secreted frizzled-related protein 4 (SFRP4) in stage Ⅱ DNA mismatch repair-deficient (dMMR) and mismatch repair- proficient (pMMR) colorectal cancers and explore their clinical significance.@*METHODS@#We collected fresh stage Ⅱ colon cancer tissues with different MMR status detected by immunohistochemistry (IHC). The differentially expressed mRNAs between dMMR and pMMR tumors were identified by Affymetrix Human oeLncRNA gene chip, and the expression of SFRP4 in these cancer tissues and in colorectal cancer cell lines were detected using Western blotting and real- time quantitative PCR. The apoptosis rates of HCT116 cells with and without siRNA- mediated transient SFRP4 knockdown were determined using flow cytometry. We further investigated the expression pattern of Ki-67 and its correlation with SFRP4 expression.@*RESULTS@#Compared with pMMR colon cancer tissues or cells, both dMMR colon cancer tissues (=0.014) and cells (=0.0079) showed significantly increased expression of SFRP4, which was in negative correlation with Ki-67 (=0.041). In HCT116 cells, transient SFRP4 knockdown resulted in decreased cell apoptosis, including both early apoptosis (=0.003) and late apoptosis (=0.024).@*CONCLUSIONS@#Up-regulation of SFRP4 in dMMR stage Ⅱ colon cancer promotes apoptosis and inhibits proliferation of the cancer cells, and may improve the prognosis of dMMR colon cancer.
Subject(s)
Humans , Apoptosis , Cell Proliferation , Colon , Metabolism , Pathology , Colonic Neoplasms , Genetics , Metabolism , Pathology , Colorectal Neoplasms , Genetics , Metabolism , Pathology , DNA Mismatch Repair , Gene Knockdown Techniques , HCT116 Cells , Ki-67 Antigen , Metabolism , Prognosis , Proto-Oncogene Proteins , Genetics , Metabolism , Up-RegulationABSTRACT
Objective:To evaluate the effects of chemotherapy on survival of patients with inoperable hepatocellular carcinoma. Methods:MEDLINE and EMBASE searches were supplemented by information from trial registers. RCT (randomized clinical trial) for chemotherapy of old generation and best supportive care in inoperable hepatocellular carcinoma was selected. Best supportive care may include some non-cytotoxic drug,such as tamoxifen,octreotide and so on. A quantitative meta-analysis using updated information basing on inclusion and exclusion criterion from all available RCT was carried out by two reviewers. The meta-analysis was based on 6 months survival rate and 1 year survival rate. Result:There was no significant improvement for chemotherapy of old generation in 6 months survival rate and 1 year survival rate as compared with best supportive care. Conclusions:There is no convincing evidence that inoperable hepatocellular carcinoma patients will benefit from chemotherapy. A large number of randomized controlled clinical studies should be performed to confirm the efficacy of chemotherapy.
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ObjectiveTo evaluate the short-term effect and side effects of ICE regimen treating the patients with relapsed and refractory non-Hodgkin's lymphoma(NHL). MethodsTwenty-five patients with relapsed and refractory NHL were treated with ICE regimen. Treatment was repeated every 3 weeks. ResultsThe total effective rate was 76.0％ for 25 patients,The response rate(PR) was 60.0％. The main side effects were marrow suppression including of leucopenia and thrombocytopenia,no patients dead for toxic reactions of chemotherapy. ConclusionICE regimen was a safe and effective salvage regimen for the patients with relapsed and refractory NHL.
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0.05).Conclusion There is no significant difference of short-term effect between the two groups in treating advanced NSCLC,and the method has mild digestive reactions and nephrotoxicity.
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OBJECTIVE:To observe the preventive effect of Ca/Mg infusion combined with glutathione and carbamazepine on oxaliplatin-induced neurotoxicity.METHODS:65patients treated with oxaliplatin,5-fluorouracil and leucovorin for gas-trointestinal cancer were divided into treatment group undergoing treatment with Ca/Mg infusion combined with glutathione and carbamazepine,and control group without any preventive treatment.RESULTS:At the third cycle,7patients in the treat-ment group but17patients in the control group showed clinically evident neurotoxicity,which demonstrated the statistical difference between the two groups(P=0.036).After12cycles,neurotoxicity of grade2to3was observed in2patients in the treatment group but in9patients in the control group,which demonstrated the statistical difference between the two groups(P=0.022).CONCLUSION:Ca/Mg infusions combined with glutathione and carbamazepine can prevent oxaliplatin-induced neurotoxicity.