Subtitle:

The Bcl-2 family proteins and calcium signaling in mammalian embryos generated by somatic cell cloning

Publisher:

Komitet Biotechnologii PAN ; Instytut Chemii Bioorganicznej PAN

Abstract:

The efficiency of somatic cell nuclear transfer (SCNT) technology in mammalian species remains unsatisfactory. One of the main causes of low developmental capability of pre- and peri-implanted somatic cell cloned embryos is the high occurrence of apoptotic cell death, which is prompted by incorrect calcium signaling. The latter is accompanied by upregulation of the members from the Bcl-2 protein family in the blastomeres of SCNT embryos derived from the reconstructed oocytes exposed to artificial activating factors that induce the phenomenon of Ca2+ ion excitotoxicity. Overexpression of antiapoptotic proteins from the Bcl-2 family plays a fundamental role in suppression of different pathways involving intracellular transduction of programmed cell death signal in the somatic cell cloned embryos. Enhancement of Bcl-2 synthesis in the cytoplasm as well as on the outer/cytoplasmic surface of cisterns and tubules of granular endoplasmic reticulum (ERg) and thereby increase in its concentration and activity in the membranes of ER and mitochondria prevents the redistribution of free calcium cations from ER to mitochondria. The purpose of this article is to provide an overview of the current knowledge on molecular aspects of controlling calcium intracellular homeostasis in mammalian SCNT embryos, in which apoptotic cell death was stimulated by an improper activation of reconstituted oocytes.

Relation:

Biotechnologia, vol.88, 1 (2010)-.

Volume:

88

Issue:

1

Start page:

66

End page:

81

Detailed Resource Type:

Artykuł

Format:

application/pdf

Resource Identifier:

0860-7796 ; oai:rcin.org.pl:71737 ; IChB B-83

Source:

Biblioteka Instytutu Chemii Bioorganicznej PAN

Language:

pol

Language of abstract:

eng

Temporal coverage:

2010

Rights:

Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0

Terms of use:

-

Digitizing institution:

Instytut Chemii Bioorganiczneji Polskiej Akademii Nauk

Original in:

Instytut Chemii Bioorganiczneji Polskiej Akademii Nauk

Projects co-financed by:

Program Operacyjny Polska Cyfrowa, lata 2014-2020, Działanie 2.3 : Cyfrowa dostępność i użyteczność sektora publicznego; środki z Europejskiego Funduszu Rozwoju Regionalnego oraz współfinansowania krajowego z budżetu państwa

Access:

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