PMID- 11836300 OWN - NLM STAT- MEDLINE DCOM- 20020301 LR - 20171116 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 87 IP - 2 DP - 2002 Feb TI - Brain-derived neurotrophic factor: a novel human ovarian follicular protein. PG - 655-9 AB - Neurotrophins are a family of soluble polypeptide growth factors widely recognized for their roles in the mammalian nervous system. One such neurotrophin, brain-derived neurotrophic factor (BDNF) was originally described in the nervous system but has now been shown to be expressed in a variety of nonneuronal tissues including endocrine tissues. We examined the human ovarian follicle for its possible secretion of BDNF and further studied mouse oocytes to determine BDNF's possible influence upon oocyte maturation. In a series of experiments derived from human specimens from in vitro fertilization following oocyte retrieval, BDNF was detected in human follicular fluid. To define the source of BDNF, cumulus granulosa cells (the cells that immediately surround the developing oocyte) were grown in cell culture for 1-2 d. BDNF protein increased over 24 h in the culture medium. Moreover, the release of BDNF was enhanced upon stimulation with cAMP or forskolin, an activator of cAMP. In contrast, mural granulosa (cells lining the follicle), oocytes, and embryos did not release appreciable quantities of BDNF. To examine possible targets of BDNF, mouse studies were used to localize the BDNF receptor, Trk B, immunocytochemically. The receptor was present on the surface of isolated oocytes. Moreover, BDNF promoted mouse oocyte maturation in culture. These experiments demonstrate for the first time the presence and secretion of BDNF from follicular cells in the human ovary and suggest a possible role for BDNF in the regulation and modulation of oocyte maturation. FAU - Seifer, David B AU - Seifer DB AD - Department of Obstetrics, Gynecology and Reproductive Sciences, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08901, USA. FAU - Feng, Bo AU - Feng B FAU - Shelden, Robert M AU - Shelden RM FAU - Chen, Shiling AU - Chen S FAU - Dreyfus, Cheryl F AU - Dreyfus CF LA - eng GR - AG-15425/AG/NIA NIH HHS/United States GR - HD23315/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 23583-48-4 (8-Bromo Cyclic Adenosine Monophosphate) RN - EC 2.7.10.1 (Receptor, trkB) SB - IM MH - 8-Bromo Cyclic Adenosine Monophosphate/pharmacology MH - Adult MH - Animals MH - Brain-Derived Neurotrophic Factor/*metabolism/pharmacology MH - Cellular Senescence/drug effects MH - Culture Techniques MH - Embryo, Mammalian MH - Female MH - Follicular Fluid/metabolism MH - Granulosa Cells/metabolism MH - Humans MH - Mice MH - Mice, Inbred C57BL MH - Oocytes/drug effects/metabolism/physiology MH - Ovarian Follicle/cytology/*metabolism MH - Receptor, trkB/metabolism EDAT- 2002/02/12 10:00 MHDA- 2002/03/02 10:01 CRDT- 2002/02/12 10:00 PHST- 2002/02/12 10:00 [pubmed] PHST- 2002/03/02 10:01 [medline] PHST- 2002/02/12 10:00 [entrez] AID - 10.1210/jcem.87.2.8213 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2002 Feb;87(2):655-9. doi: 10.1210/jcem.87.2.8213.