例如:"lncRNA", "apoptosis", "WRKY"

Ribosomal protein small subunit 15A (RPS15A) inhibits the apoptosis of breast cancer MDA-MB-231 cells via upregulating phosphorylated ERK1/2, Bad, and Chk1.

J Cell Biochem. 2020 Jan;121(1):587-595. doi:10.1002/jcb.29304. Epub 2019 Sep 18
Lingsuo Kong 1 , Qing Wei 1 , Xianwen Hu 2 , Lanren Chen 1 , Juan Li 3
Lingsuo Kong 1 , Qing Wei 1 , Xianwen Hu 2 , Lanren Chen 1 , Juan Li 3

[No authors listed]

Author information
  • 1 Department of Anesthesiology, Division of life Sciences and Medicine, West district of The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, Anhui, China.
  • 2 Department of Anesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
  • 3 Department of Anesthesia, Qilu Medical College of Shandong University, Jinan, China.

摘要


AIM:To detect the expression and identify the role of Ribosomal protein S15A (RPS15A) in human breast cancer (BC). METHODS:Immunohistochemistry (IHC) was carried out for detecting the levels of RPS15A protein. was used to evaluate the mRNA level of RPS15A in one normal breast and three BC cell lines. Lentivirus-mediated shRNA targeting RPS15A was designed to investigate the impact of silencing RPS15A in MDA-MB-231 cell. RESULTS:Higher RPS15A expression was detected in tumor tissues than in para-cancer tissues, and higher RPS15A expression was related to larger tumor size and higher TNM stage. Also, RPS15A mRNA expression in all three BC cell lines was higher than that in normal breast cell (all P < .005). Further, RPS15A knockdown significantly suppressed MDA-MB-231 cell proliferation and induced apoptosis. Moreover, RPS15A knockdown increased the caspase-3/-7 activity, and suppressed the phosphorylated levels of ERK1/2, Bad, and Chk1 (all P < .01). CONCLUSION:RPS15A inhibits apoptosis via upregulating phosphorylated ERK1/2, Bad, and Chk1 in MDA-MB-231 cell line.

KEYWORDS: ERK1/2, apoptosis, breast cancer, caspase