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פותח על ידי קלירמאש פתרונות בע"מ -
The yin and yang of corpus luteum-derived endothelial cells: Balancing life and death
Year:
2005
Source of publication :
Domestic Animal Endocrinology
Authors :
קיסיליוק, טטיאנה
;
.
Volume :
29
Co-Authors:
Meidan, R., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Levy, N., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Kisliouk, T., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Podlovny, L., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Rusiansky, M., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Klipper, E., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Facilitators :
From page:
318
To page:
328
(
Total pages:
11
)
Abstract:
A dense network of capillaries irrigates the corpus luteum (CL) allowing an intricate cross talk between luteal steroiodgenic and endothelial cell (EC) types. Indeed, luteal endothelial cells (LEC) play pivotal roles throughout the entire CL life-span. Microvascular endothelial cells are locally specialized to accommodate the needs of individual tissues, therefore unraveling the characteristics of LEC is imperative in CL physiology. Numerous studies demonstrated that endothelium-derived endothelin-1 (ET-1) is upregulated by the luteolytic hormone-prostaglandin F2α (PGF2α) and functions as an important element of the luteolytic cascade. To have a better insight on its synthesis and action, members of ET system (ET-1, ET converting enzyme -ECE-1 and ETA and ETB receptors) were quantified in LEC. The characteristic phenotype of these cells, identified by high ET-1 receptor expression (both ETA, ETB) and low ET-1 and ECE-1 levels, was gradually lost during culture suggesting that luteal microenvironment sustains the selective phenotype of its resident endothelial cells. Proper vascularization and endothelial cell activity per se are essential for normal CL function. Therefore, factors affecting vascular growth are expected to play major role in the regulation of luteal function. Concomitantly with the angiogenic process, luteal PGF2α and its receptors (PGFR) are induced and maintained during most of the CL life-span, suggesting a possible role of PGF2α in LEC proliferation and function. Dispersed LEC expressed PGFR and incubation with the prostaglandin stimulated mitogen-activated protein kinase (MAPK) signaling cascade. PGF2α activated p42/44 MAPK phosphorylation also in long-term cultured LEC. In this cell type, PGF2α increased cell number, 3H-Thymidine incorporation and cell survival. Additionally, PGF2α rapidly and transiently stimulated the expression of immediate-early response genes, i.e. c-fos and c-jun mRNA, further suggesting a mitogenic effect for this prostaglandin in LEC. These data imply that PGF2α may assume different and perhaps opposing roles depending on luteal microenvironment. © 2005 Elsevier Inc. All rights reserved.
Note:
Related Files :
Animal
Animals
Conference paper
corpus luteum
endothelin receptor
Female
molecular genetics
Prostaglandins
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.domaniend.2005.04.003
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
29973
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:51
You may also be interested in
Scientific Publication
The yin and yang of corpus luteum-derived endothelial cells: Balancing life and death
29
Meidan, R., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Levy, N., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Kisliouk, T., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Podlovny, L., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Rusiansky, M., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Klipper, E., Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
The yin and yang of corpus luteum-derived endothelial cells: Balancing life and death
A dense network of capillaries irrigates the corpus luteum (CL) allowing an intricate cross talk between luteal steroiodgenic and endothelial cell (EC) types. Indeed, luteal endothelial cells (LEC) play pivotal roles throughout the entire CL life-span. Microvascular endothelial cells are locally specialized to accommodate the needs of individual tissues, therefore unraveling the characteristics of LEC is imperative in CL physiology. Numerous studies demonstrated that endothelium-derived endothelin-1 (ET-1) is upregulated by the luteolytic hormone-prostaglandin F2α (PGF2α) and functions as an important element of the luteolytic cascade. To have a better insight on its synthesis and action, members of ET system (ET-1, ET converting enzyme -ECE-1 and ETA and ETB receptors) were quantified in LEC. The characteristic phenotype of these cells, identified by high ET-1 receptor expression (both ETA, ETB) and low ET-1 and ECE-1 levels, was gradually lost during culture suggesting that luteal microenvironment sustains the selective phenotype of its resident endothelial cells. Proper vascularization and endothelial cell activity per se are essential for normal CL function. Therefore, factors affecting vascular growth are expected to play major role in the regulation of luteal function. Concomitantly with the angiogenic process, luteal PGF2α and its receptors (PGFR) are induced and maintained during most of the CL life-span, suggesting a possible role of PGF2α in LEC proliferation and function. Dispersed LEC expressed PGFR and incubation with the prostaglandin stimulated mitogen-activated protein kinase (MAPK) signaling cascade. PGF2α activated p42/44 MAPK phosphorylation also in long-term cultured LEC. In this cell type, PGF2α increased cell number, 3H-Thymidine incorporation and cell survival. Additionally, PGF2α rapidly and transiently stimulated the expression of immediate-early response genes, i.e. c-fos and c-jun mRNA, further suggesting a mitogenic effect for this prostaglandin in LEC. These data imply that PGF2α may assume different and perhaps opposing roles depending on luteal microenvironment. © 2005 Elsevier Inc. All rights reserved.
Scientific Publication
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