Blocking Epidermal Growth Factor Receptor Signaling in HTR-8SVneo First Trimester Trophoblast Cells Results in Dephosphorylation of PKBαAKT and Induces Apoptosis
Joint Authors
Bolnick, J.
Laidler, L. L.
Abdullah, R.
Leslie, Kimberly K.
Albitar, L.
Source
Obstetrics and Gynecology International
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We identified a major peptide signaling target of EGF/EGFR pathway and explored the consequences of blocking or activating this pathway in the first trimester extravillous trophoblast cells, HTR-8/SVneo.
A global analysis of protein phosphorylation was undertaken using novel technology (Kinexus Kinetworks) that utilizes SDS-polyacrylamide minigel electrophoresis and multi-lane immunoblotting to permit specific and semiquantitative detection of multiple phosphoproteins.
Forty-seven protein phosphorylation sites were queried, and the results reported based on relative phosphorylation at each site.
EGF- and Iressa-(gefitinib, ZD1839, an inhibitor of EGFR) treated HTR-8/SVneo cells were subjected to immunoblotting and flow cytometry to confirm the phosphoprotein screen and to assess the effects of EGF versus Iressa on cell cycle and apoptosis.
EGFR mediates the phosphorylation of important signaling proteins, including PKBα/AKT.
This pathway is likely to be central to EGFR-mediated trophoblast survival.
Furthermore, EGF treatment induces proliferation and inhibits apoptosis, while Iressa induces apoptosis.
American Psychological Association (APA)
Bolnick, J.& Albitar, L.& Laidler, L. L.& Abdullah, R.& Leslie, Kimberly K.. 2011. Blocking Epidermal Growth Factor Receptor Signaling in HTR-8SVneo First Trimester Trophoblast Cells Results in Dephosphorylation of PKBαAKT and Induces Apoptosis. Obstetrics and Gynecology International،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-506319
Modern Language Association (MLA)
Bolnick, J.…[et al.]. Blocking Epidermal Growth Factor Receptor Signaling in HTR-8SVneo First Trimester Trophoblast Cells Results in Dephosphorylation of PKBαAKT and Induces Apoptosis. Obstetrics and Gynecology International No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-506319
American Medical Association (AMA)
Bolnick, J.& Albitar, L.& Laidler, L. L.& Abdullah, R.& Leslie, Kimberly K.. Blocking Epidermal Growth Factor Receptor Signaling in HTR-8SVneo First Trimester Trophoblast Cells Results in Dephosphorylation of PKBαAKT and Induces Apoptosis. Obstetrics and Gynecology International. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-506319
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506319