Granulosa Cell Apoptosis in the Ovarian Follicle—A Changing View

نویسندگان

  • Sheena L. P. Regan
  • Phil G. Knight
  • John L. Yovich
  • Yee Leung
  • Frank Arfuso
  • Arun Dharmarajan
چکیده

Recent studies challenge the previous view that apoptosis within the granulosa cells of the maturing ovarian follicle is a reflection of aging and consequently a marker for poor quality of the contained oocyte. On the contrary, apoptosis within the granulosa cells is an integral part of normal development and has limited predictive capability regarding oocyte quality or the ensuing pregnancy rate in in vitro fertilization programs. This review article covers our revised understanding of the process of apoptosis within the ovarian follicle, its three phenotypes, the major signaling pathways underlying apoptosis as well as the associated mitochondrial pathways.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evidence Inducible Cells: A P Atresia for an Nitric ossible Inverse Relationship between Apoptosis and Oxide Synthase Expression in Rat Granulosa Role of Nitric Oxide in Ovarian Follicle

Ovarian follicle atresia is thought to be induced through apoptosis of granulosa cells. This study was designed to investigate the possible involvement of nitric oxide (NO) in granulosa cell apoptosis. In immature rat ovaries obtained 48 h after pregnant mare serum gonadotropin administration, immunohistochemistry and terminal deoxynucleotidyl transferase-mediated dUTPbiotin nick end labeling (...

متن کامل

Expression of bcl-2 and nr-13 in hen ovarian follicles during development.

Follicle atresia is initiated within the granulosa cell layer of ovarian follicles and is mediated via the process of apoptosis. In the hen, at least two populations of granulosa cells can be distinguished during follicle development on the basis of their inherent susceptibility or resistance to apoptosis, in vitro. Given the previously established correlation between expression of bcl-xLong an...

متن کامل

Robo1/2 regulate follicle atresia through manipulating granulosa cell apoptosis in mice

Secreted Slit proteins and their Roundabout (Robo) receptors act as a repulsive cue to prevent axons from migrating to inappropriate locations during the development of the nervous system. Slit/Robo has also been implicated in reproductive system development, but the molecular mechanism of the Slit/Robo pathway in the reproductive system remains poorly understood. Using a transgenic mouse model...

متن کامل

Oocyte-granulosa-theca cell interactions during preantral follicular development

The preantral-early antral follicle transition is the penultimate stage of follicular development in terms of gonadotropin dependence and follicle destiny (growth versus atresia). Follicular growth during this period is tightly regulated by oocyte-granulosa-theca cell interactions. Formation of the theca cell layer is a key event that occurs during this transitional stage. Granulosal factor(s) ...

متن کامل

Effects of 3, 5, 3'-triiodothyronine (t3) and follicle stimulating hormone on apoptosis and proliferation of rat ovarian granulosa cells.

Thyroid hormone (TH) is important for normal reproductive functions and dysregulation of TH support is associated with reproductive disorders. We have previously reported that 3,5,3'-triiodothyronine (T₃) increases follicle stimulating hormone (FSH)-induced preantral follicle growth in vitro. Interaction of hormones with apoptosis and proliferation of granulosa cells is poorly understood. The p...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 9  شماره 

صفحات  -

تاریخ انتشار 2018