机构:[1]Capital Med Univ, Beijing Tian Tan Hosp, Dept Obstet & Gynecol, Beijing 100050, Peoples R China;[2]Capital Med Univ, Beijing You An Hosp, Dept Obstet & Gynecol, Beijing, Peoples R China
Non-coding RNAs are critical regulators of tumor biology. nc886, a recently identified non- coding RNA, is overexpressed in some tumors, but undetected in others. However, the precise role of nc886 remains unclear in cervical cancers. In this study, we found that nc886, major vault protein (MVP), and E2F1 exhibited coordinate expression as they were silenced in normal tissues but overexpressed in cervical cancer tissues. We subsequently demonstrate that nc886 upregulation was a critical response to chemotherapy treatment of cervical cancer cells. Mechanistically, inhibition of nc886 increased chemosensitivity, induced apoptosis, and suppressed the protein expression of MVP, a critical regulator of drug resistance. Furthermore, we identify E2F1 as a key transcription regulator of nc886 that directly interacts and modulates promoter activity. Taken together, we demonstrate that E2F1 sufficiently promotes nc886 transcription and in turn MVP expression to drive drug resistance in cervical cancer cells.
基金:
National Natural Science FoundationNational Natural Science Foundation of China [81101969]; Beijing Natural Science FoundationBeijing Natural Science Foundation [7152051]
第一作者机构:[1]Capital Med Univ, Beijing Tian Tan Hosp, Dept Obstet & Gynecol, Beijing 100050, Peoples R China;
通讯作者:
通讯机构:[1]Capital Med Univ, Beijing Tian Tan Hosp, Dept Obstet & Gynecol, Beijing 100050, Peoples R China;
推荐引用方式(GB/T 7714):
Li Jing-Hua,Wang Ming,Zhang Rui,et al.E2F1-directed activation of nc886 mediates drug resistance in cervical cancer cells via regulation of major vault protein[J].INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY.2017,10(9):9233-9242.
APA:
Li, Jing-Hua,Wang, Ming,Zhang, Rui,Gao, Wan-Li,Meng, Shi-Hui...&Feng, Li-Min.(2017).E2F1-directed activation of nc886 mediates drug resistance in cervical cancer cells via regulation of major vault protein.INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY,10,(9)
MLA:
Li, Jing-Hua,et al."E2F1-directed activation of nc886 mediates drug resistance in cervical cancer cells via regulation of major vault protein".INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 10..9(2017):9233-9242