Polar/apolar Compounds Induce Leukemia Cell Differentiation by Modulating Cell-surface Potential
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The mechanism of action of polar/apolar inducers of cell differentiation, such as dimethyl sulfoxide and hexamethylene-bisacetamide, is still obscure. In this paper evidence is provided that their effects on murine erythroleukemia cells are modulated by various extracellular cations as a precise function of the cation effects on membrane surface potential. The interfacial effects of the inducers were directly measured on the charged electrode, showing that both dimethyl sulfoxide and hexamethylene-bisacetamide, at the effective concentrations for cell differentiation and within the physiological range of charge density, adsorb at the charged surface and produce a potential shift. A linear correlation was found between this shift and the inducer effects on cell differentiation. Besides offering a different interpretation of the mechanism of action of the inducers, these findings indicate that surface potential has a signaling function. They may also be relevant to cancer treatments based on tumor-cell commitment to terminal differentiation.
Levin M, Pietak A, Bischof J Semin Cell Dev Biol. 2018; 87:125-144.
PMID: 29635019 PMC: 6234102. DOI: 10.1016/j.semcdb.2018.04.003.
Bioelectric signaling in regeneration: Mechanisms of ionic controls of growth and form.
McLaughlin K, Levin M Dev Biol. 2018; 433(2):177-189.
PMID: 29291972 PMC: 5753428. DOI: 10.1016/j.ydbio.2017.08.032.
Drug-Loaded Polymeric Nanoparticles for Cancer Stem Cell Targeting.
Li B, Li Q, Mo J, Dai H Front Pharmacol. 2017; 8:51.
PMID: 28261093 PMC: 5306366. DOI: 10.3389/fphar.2017.00051.
Yokogi S, Tsubota T, Kanki K, Azumi J, Itaba N, Oka H Yonago Acta Med. 2016; 59(2):93-9.
PMID: 27493479 PMC: 4973014.
Use of genetically encoded, light-gated ion translocators to control tumorigenesis.
Chernet B, Adams D, Lobikin M, Levin M Oncotarget. 2016; 7(15):19575-88.
PMID: 26988909 PMC: 4991402. DOI: 10.18632/oncotarget.8036.