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您的检索式：作者名="Muhammad Amin Karim"
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| 1 | A novel long non-coding RNA NFIA-AS1 is down-regulated in gastric cancer and inhibits proliferation of gastric cancer cells显示文摘Gastric cancer is one of the most common malignant gastrointestinal tumors whose morbidity and mortality account for the second and third place respectively in malignant tumors in China.As an important participant in tumor biology,the abnormal expression of long non-coding RNA(lncRNAs)in cancer cells is closely related to the occurrence and development of tumors and plays the role of oncogenes or tumor suppressor genes.In this study,we identified a novel lncRNA NFIA antisense RNA 1(NFIA-AS1)and explored its role and clinical significance in gastric cancer.Real-time quantitative PCR was performed to detect the expression of NFIA-AS1 in tumor tissues and corresponding normal tissues from 42 pairs of gastric cancer samples.The lower expression of NFIA-AS1 was significantly associated with larger tumor size,lower histological grade,and advanced TNM stage.Kaplan-meier analysis showed that NFIA-AS1 expression could be used as an independent predictor of overall survival.We also demonstrated that overexpression of NFIA-AS1 significantly inhibited the proliferation of gastric cancer cells through affecting p16 levels.In conclusion,our results suggest that the lncRNA NFIA-AS1 may play the role of tumor suppressor gene,and serve as a biomarker for prognosis or progression of gastric cancer. | Jing Wang Xuezhi He Xiyi Lu Muhammad Amin Karim Dengshun Miao Erbao Zhang | 2019 | The Journal of Biomedical Research2019，33，6： | 1 |
| 2 | 整合素αvβ6-ERK信号通路负调控钙黏蛋白Fat-1促进结肠癌细胞侵袭的分子机制研究(英文)显示文摘目的 :明确整合素αvβ6能否调控钙黏蛋白Fat1表达,及其可能的信号传导通路,进一步揭示其促进结肠癌侵袭的分子机制。方法:分别孵育HT-29及SW480结肠癌细胞,利用si RNA技术和转基因技术调控整合素αvβ6的表达,并根据其表达情况进行实验分组;应用Western Blotting分析各组结肠癌细胞中Total-ERK、phosphate-ERK和Fat-1蛋白的表达情况。利用ERK特异性抑制剂PD98059,观察阻断ERK活化后Fat-1的表达情况。明胶酶谱分析αvβ6的表达与否与肿瘤细胞分泌Gelatinase B的情况。结果:通过干预整合素αvβ6表达,能够负向调控钙黏蛋白Fat-1表达,阻断ERK磷酸化过程能够抑制αvβ6对Fat-1的负向调控作用。明胶酶谱分析证实整合素αvβ6能够促进Gelatinase B表达。结论:整合素αvβ6对钙黏蛋白Fat1在结肠癌中的表达有负向调控作用,αvβ6-ERK信号通路可能涉及这一分子机制,增强αvβ6表达能够促进肿瘤细胞侵袭转移。 | Muhammad Amin Karim 单立群 李泽群 高会杰 牛正川 王舟 高超 贺兆斌 彭程 牛卫博 方汝亮 牛军 | 2016 | 中国现代普通外科进展2016，19，4： | 0 |
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