毛囊
细胞外基质
卵泡
细胞生物学
窦卵泡
雌激素
生物物理学
卵泡膜
激素
材料科学
化学
内分泌学
内科学
生物
医学
作者
Erin R. West,Min Xu,Teresa K. Woodruff,Lonnie D. Shea
出处
期刊:Biomaterials
[Elsevier]
日期:2007-10-01
卷期号:28 (30): 4439-4448
被引量:286
标识
DOI:10.1016/j.biomaterials.2007.07.001
摘要
The mechanical properties and density of natural and synthetic extracellular matrices are known to affect cellular processes and regulate tissue formation. In this report, these factors were independently investigated for their role in ovarian follicle development. The matrix composition was controlled through decreasing the solids concentration or the molar mass of the encapsulating biomaterial, alginate. Decreasing matrix stiffness and solids concentration enhanced follicle growth and coordinated differentiation of the follicle cell types, as evidenced by antral cavity formation, theca cell differentiation, oocyte maturation, and relative hormone production levels. While a stiff environment favored high progesterone and androgen secretion, decreasing alginate stiffness resulted in estrogen production which exceeded progesterone and androgen accumulation. These studies reveal, for the first time, a direct link between the biomechanical environment and follicle function, and suggest a novel non-hormonal mechanism regulating follicle development.
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