Regulation by cytoglobin of hypoxia-induced cell proliferation in human aortic smooth muscle cells

Dissertant

al-Alaoui, Chaymae

Thesis advisor

Barradah, Fuad
Jourdheuil, David

Comitee Members

Sindidi, Khalid Sadaqa
al-Asli, Abd al-Ghani
Fechtali, Tawfiq
Ibrahimi, Izz al-Din

University

Al Akhawayn University

Faculty

School of Science and Engineering

Department

Biotechnology

University Country

Morocco

Degree

Master

Degree Date

2011

English Abstract

Atherosclerosis is the principal cause of a constellation of cardiovascular diseases including coronary artery disease and abdominal aortic aneurysm.

Endothelial dysfunction, accumulation of cellular and extracellular substances in the arterial lumen and excessive vascular smooth muscle cell proliferation are the active players underlying the development of atherosclerotic inflammatory lesions.

All together, this events result in plaque formation, vascular remodeling and diminished oxygen supply.

Accordingly, considerable effort has been devoted to elucidate the mechanisms regulating VSM cell proliferation in this pathological condition.

In the present project, we test the involvement of Cytoglobin (Cygb); a novel globin type ubiquitously expressed in vertebrate tissues, in the regulation of excessive human aortic smooth muscle cell (HASMC) proliferation, one of the major steps characterizing the formation of atherosclerotic lesion within the aorta.

HASMCs were seeded at different cell densities and subjected to variable oxygen tensions and growth factors treatments.

Our results show an increase in Cygb expression at both mRNA and protein levels during hypoxia and this upregulation correlates with cell replication through increased rate of HASM cell proliferation, suggesting a possible role of Cygb in oxygen homeostasis by the regulation of cellular oxygen sensing and transport as a specific physiological adaptive mechanism to the lack of oxygenation in thickened aortic wall.

Main Subjects

Biology
Medicine

No. of Pages

57

Table of Contents

Table of contents.

Abstract.

Abstract in Arabic.

Abstract in French.

Chapter One : Introduction.

Chapter Two : Materials and methods.

Chapter Three : Results.

Chapter Four : Discussion.

Chapter Five : Conclusion.

References.

American Psychological Association (APA)

al-Alaoui, Chaymae. (2011). Regulation by cytoglobin of hypoxia-induced cell proliferation in human aortic smooth muscle cells. (Master's theses Theses and Dissertations Master). York University, Morocco
https://search.emarefa.net/detail/BIM-644913

Modern Language Association (MLA)

al-Alaoui, Chaymae. Regulation by cytoglobin of hypoxia-induced cell proliferation in human aortic smooth muscle cells. (Master's theses Theses and Dissertations Master). York University. (2011).
https://search.emarefa.net/detail/BIM-644913

American Medical Association (AMA)

al-Alaoui, Chaymae. (2011). Regulation by cytoglobin of hypoxia-induced cell proliferation in human aortic smooth muscle cells. (Master's theses Theses and Dissertations Master). York University, Morocco
https://search.emarefa.net/detail/BIM-644913

Language

English

Data Type

Arab Theses

Record ID

BIM-644913