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Published in: Cancer Cell International 1/2023

Open Access 01-12-2023 | Breast Cancer | Research

Disclosing a metabolic signature of cisplatin resistance in MDA-MB-231 triple-negative breast cancer cells by NMR metabolomics

Authors: Tatiana J. Carneiro, Ana L. M. Batista Carvalho, Martin Vojtek, Inês F. Carmo, Maria Paula M. Marques, Carmen Diniz, Ana M. Gil

Published in: Cancer Cell International | Issue 1/2023

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Abstract

This work compared the metabolic profile of a parental MDA-MB-231 cisplatin-sensitive triple negative breast cancer (TNBC) cell line with that of a derived cisplatin-resistant line, to characterize inherent metabolic adaptations to resistance, as a means for marker and new TNBC therapies discovery. Supported by cytotoxic, microscopic and biochemical characterization of both lines, Nuclear Magnetic Resonance (NMR) metabolomics was employed to characterize cell polar extracts for the two cell lines, as a function of time (0, 24 and 48 h), and identify statistically relevant differences both between sensitive and resistant cells and their time course behavior. Biochemical results revealed a slight increase in activation of the NF-κB pathway and a marked decrease of the ERK signaling pathway in resistant cells. This was accompanied by lower glycolytic and glutaminolytic activities, possibly linked to glutamine being required to increase stemness capacity and, hence, higher survival to cisplatin. The TCA cycle dynamics seemed to be time-dependent, with an apparent activation at 48 h preferentially supported by anaplerotic aromatic amino acids, leucine and lysine. A distinct behavior of leucine, compared to the other branched-chain-amino-acids, suggested the importance of the recognized relationship between leucine and in mTOR-mediated autophagy to increase resistance. Suggested markers of MDA-MB-231 TNBC cisplatin-resistance included higher phosphocreatine/creatine ratios, hypotaurine/taurine–mediated antioxidant protective mechanisms, a generalized marked depletion in nucleotides/nucleosides, and a distinctive pattern of choline compounds. Although the putative hypotheses generated here require biological demonstration, they pave the way to the use of metabolites as markers of cisplatin-resistance in TNBC and as guidance to develop therapies.
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Metadata
Title
Disclosing a metabolic signature of cisplatin resistance in MDA-MB-231 triple-negative breast cancer cells by NMR metabolomics
Authors
Tatiana J. Carneiro
Ana L. M. Batista Carvalho
Martin Vojtek
Inês F. Carmo
Maria Paula M. Marques
Carmen Diniz
Ana M. Gil
Publication date
01-12-2023
Publisher
BioMed Central
Published in
Cancer Cell International / Issue 1/2023
Electronic ISSN: 1475-2867
DOI
https://doi.org/10.1186/s12935-023-03124-0

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