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17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch

Hypertension and estrogen deficiency in women have been identified as significant risk factors for cerebrovascular diseases. Hypertension causes excessive vascular stretch and contributes to the initiation of cellular injury in blood vessels while estrogen has been demonstrated to exert beneficial p...

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Main Authors: Nurul Farhana Jufri,, Mohamedali, Abidali, Seong, Beom Ahn, Avolio, Alberto, Baker, Mark
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:http://journalarticle.ukm.my/12941/1/24014-76980-1-PB.pdf
http://journalarticle.ukm.my/12941/
http://ejournal.ukm.my/jskm/issue/view/1072
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spelling my-ukm.journal.129412019-05-17T14:34:30Z http://journalarticle.ukm.my/12941/ 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch Nurul Farhana Jufri, Mohamedali, Abidali Seong, Beom Ahn Avolio, Alberto Baker, Mark Hypertension and estrogen deficiency in women have been identified as significant risk factors for cerebrovascular diseases. Hypertension causes excessive vascular stretch and contributes to the initiation of cellular injury in blood vessels while estrogen has been demonstrated to exert beneficial protective effects on the vascular system. Although the specific biological outcomes exerted by either excessive stretch or estrogen exposure are well established, the combined biochemical effects of both stimuli remain unclear. Therefore, this study was conducted for quantitative proteomics study on human cerebral microvascular endothelial cells (HCMECs) subjected to 20% “pathological” cyclic stretch for a period of 18 hour in the presence or absence of 17β-estradiol by isobaric Taqs for Relative and Absolute Quantification. The results showed that only some proteins responded to 17β-estradiol (e.g., thioredoxin reductase-1), stretch (e.g., 14-3-3 protein epsilon or acidic leucine-rich nuclear phosphoprotein 32 family member B) and interestingly, some proteins returned to control pre-treatment levels when exposed to both (e.g., d-dopachrome decarboxylase, thrombospondin-1). In addition, HCMECs that exposed only to estrogen had a very similar proteomic profile (i.e., up-regulation of structural, cellular adhesion and proliferation proteins) as to those exposed to estrogen with 20% stretching for 18 hour, suggesting that estrogen ablated the detrimental effects by the stretch alone. These findings sheds light on the molecular mechanisms by which the cerebrovascular protective actions of estrogen on HCMEC exposed to pathological levels of cyclic stretch which could provide a platform for future research in therapeutic approach. Penerbit Universiti Kebangsaan Malaysia 2018 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12941/1/24014-76980-1-PB.pdf Nurul Farhana Jufri, and Mohamedali, Abidali and Seong, Beom Ahn and Avolio, Alberto and Baker, Mark (2018) 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch. Jurnal Sains Kesihatan Malaysia, 16 (SI). pp. 55-65. ISSN 1675-8161 http://ejournal.ukm.my/jskm/issue/view/1072
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Hypertension and estrogen deficiency in women have been identified as significant risk factors for cerebrovascular diseases. Hypertension causes excessive vascular stretch and contributes to the initiation of cellular injury in blood vessels while estrogen has been demonstrated to exert beneficial protective effects on the vascular system. Although the specific biological outcomes exerted by either excessive stretch or estrogen exposure are well established, the combined biochemical effects of both stimuli remain unclear. Therefore, this study was conducted for quantitative proteomics study on human cerebral microvascular endothelial cells (HCMECs) subjected to 20% “pathological” cyclic stretch for a period of 18 hour in the presence or absence of 17β-estradiol by isobaric Taqs for Relative and Absolute Quantification. The results showed that only some proteins responded to 17β-estradiol (e.g., thioredoxin reductase-1), stretch (e.g., 14-3-3 protein epsilon or acidic leucine-rich nuclear phosphoprotein 32 family member B) and interestingly, some proteins returned to control pre-treatment levels when exposed to both (e.g., d-dopachrome decarboxylase, thrombospondin-1). In addition, HCMECs that exposed only to estrogen had a very similar proteomic profile (i.e., up-regulation of structural, cellular adhesion and proliferation proteins) as to those exposed to estrogen with 20% stretching for 18 hour, suggesting that estrogen ablated the detrimental effects by the stretch alone. These findings sheds light on the molecular mechanisms by which the cerebrovascular protective actions of estrogen on HCMEC exposed to pathological levels of cyclic stretch which could provide a platform for future research in therapeutic approach.
format Article
author Nurul Farhana Jufri,
Mohamedali, Abidali
Seong, Beom Ahn
Avolio, Alberto
Baker, Mark
spellingShingle Nurul Farhana Jufri,
Mohamedali, Abidali
Seong, Beom Ahn
Avolio, Alberto
Baker, Mark
17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
author_facet Nurul Farhana Jufri,
Mohamedali, Abidali
Seong, Beom Ahn
Avolio, Alberto
Baker, Mark
author_sort Nurul Farhana Jufri,
title 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
title_short 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
title_full 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
title_fullStr 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
title_full_unstemmed 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
title_sort 17β-estradiol changes the human cerebral endothelial cell proteome upon exposure to cyclic stretch
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2018
url http://journalarticle.ukm.my/12941/1/24014-76980-1-PB.pdf
http://journalarticle.ukm.my/12941/
http://ejournal.ukm.my/jskm/issue/view/1072
_version_ 1643738933656289280
score 13.211869

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