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The Effect of Estradiol on Production of Type Ii Collagen and Aggrecan in Chondrogenic Proccess



Hashemibeni B1, 2 ; Sadeghi F1, 2 ; Ansar M3 ; Kabiri A3
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Authors Affiliations
  1. 1. Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Anatomical Sciences, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran

Source: Journal of Isfahan Medical School Published:2014

Abstract

Background: Sex hormones play important role in proliferation, differentiation, maturation and the scheduled death of chondrocytes. Although, some studies report the regulatory role of estrogen in the development and progression of cartilage, some of the mechanisms still remain unclear, including the role of estrogen in the expression of cartilage-specific genes in chondrogenesis process. We studied this role in the present study. Methods: We used adipose-derived stem cells, which were previously differentiated into cartilage tissue in pellet culture system in the control (without estrogen in culture medium) and experimental (with estrogen in culture medium) groups. Production of chondrogenesis markers, type II collagen and aggrecan were evaluated in experimental and control groups via immunohistochemical (IHC) technique. Then, the results were evaluated with Image-J software and statistical analysis were done. Findings: Estrogen led to decrease of type II collagen and increase of aggrecan production. Conclusion: This study showed that chondrogenesis could be affected by estrogen. © 2014, Isfahan University of Medical Sciences(IUMS). All rights reserved.
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