ABSTRACT
AIM:To investigate the role of microRNA-101-3p (miRNA-101-3p) on the proliferation, apopto-sis and invasion of gastric cancer cells and the possible regulatory mechanisms .METHODS: The expression of miRNA-101-3p in two kinds of gastric cancer cells and a gastric mucosal cell line was detected by real -time PCR.The miRNA-101-3p was overexpressed by Lipofectamine 2000 transfection with miRNA-101-3p mimics.The effects of miRNA-101-3p on cell cycle distribution and apoptosis were analyzed by flow cytometry .The effects of miRNA-101-3p on cell proliferation and migration abilities were detected by CCK-8 assay, trypan blue exclusion test and Transwell assay .The protein expression of enhancer of zeste homolog 2 ( EZH2) was determined by Western blot .RESULTS: The expression of miRNA-101-3p in gastric cancer cells was lower than that in gastric mucosal cells (P<0.05).The gastric cancer cell MGC-803 had the low-est expression level of miRNA-101-3p.The result of flow cytometry showed that the population of S phase was reduced , and the population of G0/G1 phase and the early stage apoptotic rate were increased after the expression of miRNA-101-3p was overexpressed (P<0.05).The results of CCK-8 assay, trypan blue exclusion test and Transwell assay showed that overex-pression of miRNA-101-3p significantly reduced the proliferation and migration abilities of gastric cancer cells (P<0.05). Overexpression of miRNA-101-3p decreased the protein level of EZH2 (P<0.05).CONCLUSION:miRNA-101-3p may suppresses the gastric cancer cell proliferation and migration , and promotes the gastric cancer cell apotosis by down-regula-tion of EZH2.
ABSTRACT
Objective To investigate the long-term efficacy of autologous stem cell transplantation for systemic lupus erythematosus (SLE). Methods Long-term follow up of 48 SLE patients with autologous stem cell transplantation were studied. All patients were followed up for 10 years. Among the patients, 24 cases were treated with purified CD34+ cells transplantation and 24 cases were treated with non-CD34+ cell transplantation. Comparison between groups was performed by x2 test. Results Among 5 dead patients, 4 died of transplantation related complications including 3 cases treated with CD34+ transplantion. The survival rate of those patients with more than 10 years duration of lupus was 90%(43/48). Among 43 patients, 7 had disease flare, 6 were treated with non-CD34+ cell transplantation. Eight patients went to college, 26 returned to normal life and 4 of them had children. Conclusion The long-term effect of SLE treated with autologous hematopoietic stem cell transplantation and anti-thymocyte globulin (ATG) is good. The recurrence of CD34+ transplant patients is lower than those treated with non-CD34+ transplantation. The quality of life in SLE patients treated with transplantation is better than those treated with conventional therapy.