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Recent Advances in the Studies of Molecular Mechanisms Regulating Multidrug Resistance in Cancer Cells

Abstract

Abstract—Here we present new approaches to better understanding multidrug resistance (MDR) development in cancer cells, such as identification of components of a complex process of MDR evolution. Recent advances in the studies of MDR are discussed: 1) chemotherapy agents might be involved in the selection of cancer stem cells resulting in the elevated drug resistance and enhanced tumorigenicity; 2) cell–cell interactions have a great effect on the MDR emergence and evolution; 3) mechanotransduction is an important signaling mechanism in cell–cell interactions; 4) proteins of the ABC transporter family which are often involved in MDR might be transferred between cells via microvesicles (epigenetic MDR regulation); 5) proteins providing cell-to-cell transfer of functional P-glycoprotein (MDR1 protein) via microvesicles have been investigated; 6) P-glycoprotein may serve to regulate apoptosis, as well as transcription and translation of target genes/proteins. Although proving once again that MDR is a complex multi-faceted process, these data open new approaches to overcoming it.

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Abbreviations

ABC:

ATP binding cassette

CAFs:

cancer-associated fibroblasts

CSCs:

cancer stem cells

DR:

drug resistance

E-cad:

E-cadherin

ECM:

extracellular matrix

ES:

Ewing sarcoma

MDR:

multidrug resistance

MDR1 :

multidrug resistance gene 1, encodes Pgp

MVs:

microvesicles

NFs:

normal fibroblasts

Pgp:

P-glycoprotein (according to the current ABCB1 classification)

TNF:

tumor necrosis factor

TRAIL:

TNF-related apoptosis-inducing ligand

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Correspondence to A. A. Stavrovskaya.

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Original Russian Text © A. A. Stavrovskaya, E. Yu. Rybalkina, 2018, published in Biokhimiya, 2018, Vol. 83, No. 7, pp. 963–971.

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Stavrovskaya, A.A., Rybalkina, E.Y. Recent Advances in the Studies of Molecular Mechanisms Regulating Multidrug Resistance in Cancer Cells. Biochemistry Moscow 83, 779–786 (2018). https://doi.org/10.1134/S0006297918070015

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Keywords

  • multidrug resistance
  • cell–cell interactions
  • epigenetic regulation
  • microvesicles