k 2013

The role of ABC transporters associated with multidrug resistance in stem cells

LÁNOVÁ, Martina, Josef VEČEŘA, Jan KUČERA, Jiřina MEDALOVÁ, Jiří PACHERNÍK et. al.

Basic information

Original name

The role of ABC transporters associated with multidrug resistance in stem cells

Authors

LÁNOVÁ, Martina (203 Czech Republic, belonging to the institution), Josef VEČEŘA (203 Czech Republic, belonging to the institution), Jan KUČERA (203 Czech Republic, belonging to the institution), Jiřina MEDALOVÁ (203 Czech Republic, belonging to the institution) and Jiří PACHERNÍK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Stem Cells and Cell therapy: From research to modern clinical application, 2013

Other information

Language

English

Type of outcome

Prezentace na konferencích

Field of Study

30105 Physiology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/13:00070749

Organization unit

Faculty of Science

Keywords in English

ABC-transporters neural stem cells
Změněno: 11/3/2015 10:51, RNDr. Josef Večeřa, Ph.D.

Abstract

V originále

ATP-binding transporters (ABC-t) play various roles in regulation of organism function and homeostasis from prokaryote to mammals. ABC-t mediate transport mainly of lipophilic substances through cellular membranes. These transporters protect stem cells against toxic substances of either endogenous, or importantly, exogenous origin. These transporters are called ABC-t associated with multi-drug resistance (MDR), according to their role in multidrug resistance to pharmacotherapy. High level of ABC-t expression is a typical feature of stem cells and many types of cancer stem cells. Particularly, ABCB1/P-glycoprotein/MDR1, ABCC1/multidrug resistance-associated protein 1 (MRP1), and ABCG2/BCRP (Breast cancer resistance protein);. However, substrates of ABC-t/MDR are not only toxins, but also important signaling molecules as well as leukotrienes and/or glutathione conjugates; and porphyrins, which mediate balance in intracellular oxidation-reduction processing. Thus we hypothesize the role of ABC-t/MDR in regulation of stem cells fate. To test this hypothesis we analyzed effect of modulation of ABC-t/MDR activity in embryonic and neural stem cells. We observed that ABCC1 and ABCG2 are the most expressed ABC-t/MDR in our tested stem cells. Importantly, inhibition of these ABC-t/MDR leads to decreasing of stemness and induction of differentiation in both embryonic and neural stem cells. Analysis of mechanism of observed effect and identification of studying ABC-t/MDR substrates, which may be responsible for this effect, are in progress.

Links

EE2.3.30.0009, research and development project
Name: Zaměstnáním čerstvých absolventů doktorského studia k vědecké excelenci