Work

Monitoring the Effect of Tributyltin Salicylate and Propionate, Retinoid X Receptor Ligands, on Heat Shock Protein Expression in MDA‐MB‐231 Cells by MALDI MS/MS

Year: 2026

Type: article

Abstract: Organotin (IV) compounds are known to induce apoptosis via the intrinsic mitochondrial pathway, which is a key mechanism of effective anticancer therapy. Their ability to selectively promote apoptotic cell death highlights their potential as chemotherapeutic agents. In this study, the in vitro effects of two triorganotin compounds, tributyltin propionate and tributyltin salicylate, on the human breast cancer cell line MDA-MB-231 were evaluated. In addition to their proven antitumor activity, these compounds may act as synthetic ligands for nuclear retinoid X receptors. Protein expression profiles were examined using gel electrophoresis and MALDI-TOF mass spectrometry, with a particular focus on heat shock proteins (HSPs), which are commonly overexpressed in cancer cells and contribute to tumor progression and therapeutic resistance. Both triorganotin derivatives significantly reduced HSP expression, suggesting that HSPs could be a promising target in cancer therapy.

Source: Journal of Mass Spectrometry

DOI: 10.1002/jms.70090

Authors: Dana Strouhalova, Dana Macejova, Julius Brtko, Janette Bobalova

Institutions: Czech Academy of Sciences, Czech Academy of Sciences, Institute of Analytical Chemistry, Slovak Academy of Sciences, Institute of Experimental Endocrinology of the Slovak Academy of Sciences, Biomedical Research Center of the Slovak Academy of Sciences

Language: English

Topic: Heat shock proteins research

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: hybrid

Estimated APC paid: $4,430