PMID- 8312455 OWN - NLM STAT- MEDLINE DCOM- 19940324 LR - 20190512 IS - 0006-3363 (Print) IS - 0006-3363 (Linking) VI - 50 IP - 1 DP - 1994 Jan TI - Rat ovary produces cytokines during ovulation. PG - 88-94 AB - To examine the production of cytokines by the ovary during ovulation, ovaries were obtained from immature rats and from eCG/hCG-primed immature rats at different stages of the ovulatory process (before hCG injection, 10 h after hCG, and 20 h after hCG) and were perfused in vitro for 5 h. Large quantities of interleukin (IL)-6 and granulocyte-macrophage colony-stimulating factor (GM-CSF) bioactivity and smaller amounts of tumor necrosis factor-alpha (TNF alpha) and IL-1 bioactivity were found in the perfusate. IL-2 and IL-3 were not detectable in the perfusion media. The GM-CSF content was significantly higher in the perfusate of ovulating ovaries (obtained 10 h after hCG) compared to the earlier stages. Studies on preovulatory ovaries (prior to hCG injection) revealed that GM-CSF release was not influenced by LH, but was markedly increased when recombinant human IL-1 beta (4 ng/ml) was added to the perfusion medium. IL-6 was released in similar amounts from ovaries at all stages. The identity of bioactive GM-CSF was confirmed by neutralization with a specific polyclonal antibody against murine GM-CSF. Size-exclusion chromatography of perfusion medium revealed peaks of GM-CSF and IL-6 bioactivity at approximate molecular masses of 21-23 kDa and 24-25 kDa, respectively. This study demonstrates that the rat ovary produces IL-6, GM-CSF, TNF alpha, and IL-1 prior to and during the ovulatory process and that there are temporal fluctuations in GM-CSF release with a peak in output at ovulation. FAU - Brannstrom, M AU - Brannstrom M AD - Department of Obstetrics and Gynaecology, University of Adelaide, Queen Elizabeth Hospital, Woodville, Australia. FAU - Norman, R J AU - Norman RJ FAU - Seamark, R F AU - Seamark RF FAU - Robertson, S A AU - Robertson SA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biol Reprod JT - Biology of reproduction JID - 0207224 RN - 0 (Antibodies) RN - 0 (Chorionic Gonadotropin) RN - 0 (Cytokines) RN - 0 (Interleukin-6) RN - 0 (Tumor Necrosis Factor-alpha) RN - 4G7DS2Q64Y (Progesterone) RN - 4TI98Z838E (Estradiol) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) SB - IM MH - Animals MH - Antibodies/pharmacology MH - Chorionic Gonadotropin/pharmacology MH - Cytokines/*biosynthesis MH - Estradiol/metabolism MH - Female MH - Granulocyte-Macrophage Colony-Stimulating Factor/biosynthesis/chemistry/immunology MH - Interleukin-6/biosynthesis/chemistry/immunology MH - Molecular Weight MH - Ovary/*metabolism MH - Ovulation/*physiology MH - Progesterone/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Tumor Necrosis Factor-alpha/biosynthesis EDAT- 1994/01/01 00:00 MHDA- 1994/01/01 00:01 CRDT- 1994/01/01 00:00 PHST- 1994/01/01 00:00 [pubmed] PHST- 1994/01/01 00:01 [medline] PHST- 1994/01/01 00:00 [entrez] AID - 10.1095/biolreprod50.1.88 [doi] PST - ppublish SO - Biol Reprod. 1994 Jan;50(1):88-94. doi: 10.1095/biolreprod50.1.88.