AUTHOR=Martinho Nuno , Santos Tânia C. B. , Florindo Helena F. , Silva Liana C. TITLE=Cisplatin-Membrane Interactions and Their Influence on Platinum Complexes Activity and Toxicity JOURNAL=Frontiers in Physiology VOLUME=9 YEAR=2019 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2018.01898 DOI=10.3389/fphys.2018.01898 ISSN=1664-042X ABSTRACT=

Cisplatin and other platinum(II) analogs are widely used in clinical practice as anti-cancer drugs for a wide range of tumors. The primary mechanism by which they exert their action is through the formation of adducts with genomic DNA. However, multiple cellular targets by platinum(II) complexes have been described. In particular, the early events occurring at the plasma membrane (PM), i.e., platinum-membrane interactions seem to be involved in the uptake, cytotoxicity and cell-resistance to cisplatin. In fact, PM influences signaling events, and cisplatin-induced changes on membrane organization and fluidity were shown to activate apoptotic pathways. This review critically discusses the sequence of events caused by lipid membrane-platinum interactions, with emphasis on the mechanisms that lead to changes in the biophysical properties of the membranes (e.g., fluidity and permeability), and how these correlate with sensitivity and resistance phenotypes of cells to platinum(II) complexes.