Roles of ABCC1 and ABCC4 in Proliferation and Migration of Breast Cancer Cell Lines

Abstract

ABCC1 and ABCC4 utilize energy from ATP hydrolysis to transport many different molecules, including drugs, out of the cell and, as such, have been implicated in causing drug resistance. However recently, because of their ability to transport signaling molecules and inflammatory mediators, it has been proposed that ABCC1 and ABCC4 may play a role in the hallmarks of cancer development and progression, independent of their drug efflux capabilities. Breast cancer is the most common cancer affecting women. In this study, the aim was to investigate whether ABCC1 or ABCC4 play a role in the proliferation or migration of breast cancer cell lines MCF-7 (luminal-type, receptor-positive) and MDA-MB-231 (basal-type, triple-negative). The effects of small molecule inhibitors or siRNA-mediated knockdown of ABCC1 or ABCCC4 were measured. Colony formation assays were used to assess the clonogenic capacity, MTT assays to measure the proliferation, and scratch assays and Transwell assays to monitor the cellular migration. The results showed a role for ABCC1 in cellular proliferation, whilst ABCC4 appeared to be more important for cellular migration. ELISA studies implicated cAMP and/or sphingosine-1-phosphate efflux in the mechanism by which these transporters mediate their effects. However, this needs to be investigated further, as it is key to understand the mechanisms before they can be considered as targets for treatment.

Publication DOI: https://doi.org/10.3390/ijms21207664
Divisions: College of Health & Life Sciences > School of Biosciences
Additional Information: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords: Breast cancer,CAMP,Invasion,MRP1,MRP4,Migration,Proliferation,Catalysis,Molecular Biology,Spectroscopy,Computer Science Applications,Physical and Theoretical Chemistry,Organic Chemistry,Inorganic Chemistry
Publication ISSN: 1422-0067
Full Text Link:
Related URLs: https://www.mdp ... 0067/21/20/7664 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-10-16
Accepted Date: 2020-10-07
Authors: Low, Floren G.
Shabir, Kiran
Brown, James E. (ORCID Profile 0000-0002-3504-7373)
Bill, Roslyn M. (ORCID Profile 0000-0003-1331-0852)
Rothnie, Alice J. (ORCID Profile 0000-0002-4259-7015)

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