Breast cancer-derived K172N, D301V mutations abolish Na+/H+ exchanger regulatory factor 1 inhibition of platelet-derived growth factor receptor signaling
Breast cancer-derived K172N, D301V mutations abolish Na+/H+ exchanger regulatory factor 1 inhibition of platelet-derived growth factor receptor signaling
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DOI:
10.1016/j.febslet.2013.08.026
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发表时间:
2013-10-11
期刊:
影响因子:
3.5
通讯作者:
He, Junqi
中科院分区:
文献类型:
--
作者:
Cheng, Shan;Li, Yang;He, Junqi
Na+/H+ exchanger regulatory factor 1 (NHERF1) is a scaffold protein known to interact with a number of cancer-related proteins. nherf1 Mutations (K172N and D301V) were recently identified in breast cancer cells. To investigate the functional properties of NHERF1, wild-type and cancer-derived nherf1 mutations were stably expressed in SKMES-1 cells respectively. NHERF1-wt overexpression suppressed the cellular malignant phenotypes, including proliferation, migration, and invasion. nherf1 Mutations (K172N and D301V) caused complete or partial loss of NHERF1 functions by affecting the PTEN/NHERF1/PDGFR beta complex formation, inactivating NHERF1 inhibition of PDGF-induced AKT and ERK activation, and attenuating the tumor-suppressor effects of NHERF1-wt. These results further demonstrated the functional consequences of breast cancer-derived nherf1 mutations (K172N and D301V), and suggested the causal role of NHERF1 in tumor development and progression.Structured summary of protein interactions:NHERF1 physically interacts with PDGFRbeta by pull downNHERF1 physically interacts with PTEN by pull downPDGFRbeta physically interacts with PTEN and NHERF1 by pull down (C) 2013 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.