{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T01:48:06Z","timestamp":1767836886126,"version":"3.49.0"},"reference-count":51,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2010,3,1]],"date-time":"2010-03-01T00:00:00Z","timestamp":1267401600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":["rep.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2010,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Cytokines are thought to regulate prostaglandin (PG) secretion in the bovine endometrium. However, there is no consensus about the role of interleukin-1\u03b1 (IL1A) on PG secretion. The objective of this study was to examine the influence of IL1A on basal and interferon-\u03c4 (IFNT)-regulated PG in vitro secretion, as well its effects on PG secretion, progesterone (P4) output, and corpus luteum (CL) in vivo lifespan. Explants of bovine endometrium (days 16\u201317 of the estrous cycle or early pregnancy) were stimulated with IL1A (10\u200ang\/ml), IFNT (30\u200ang\/ml), or IL1A combined with IFN. IL1A alone strongly stimulated luteotrophic PGE2 secretion by endometrial tissues of both pregnant and nonpregnant cows. IL1A also stimulated luteolytic PGF2\u03b1 output in the late luteal phase. IFNT augmented the stimulatory effect of IL1A on PGE2 secretion. In an in vivo experiment, saline or IL1A at different doses (0.001\u201310\u200a\u03bcg\/per animal) was applied to the uterine lumen on day 16 of the cycle. Only the highest dose of IL1A caused a temporal increase in PGF2\u03b1 secretion, while it had no effect on P4 secretion or CL lifespan. Application of 0.1 and 1\u200a\u03bcg IL1A stimulated P4 and PGE2 output and prolonged the CL lifespan. Although IL1A may stimulate in vitro luteolytic PGF2\u03b1 secretion during the estrous cycle, it only acts as a luteotrophic factor in vivo. IL1A increased luteotrophic PGE2 and P4 output, inhibiting spontaneous luteolysis. These luteotrophic effects may result in appropriate luteal development and function in cows during the estrous cycle and early pregnancy.<\/jats:p>","DOI":"10.1530\/rep-09-0328","type":"journal-article","created":{"date-parts":[[2009,12,23]],"date-time":"2009-12-23T22:11:48Z","timestamp":1261606308000},"page":"665-672","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-1","source":"Crossref","is-referenced-by-count":12,"title":["Is interleukin-1\u03b1 a luteotrophic or luteolytic agent in cattle?"],"prefix":"10.1093","volume":"139","author":[{"given":"Magdalena","family":"Majewska","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Izabela","family":"Woclawek-Potocka","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mamadou M","family":"Bah","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joanna","family":"Hapunik","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Katarzyna K","family":"Piotrowska","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukari","family":"Tasaki","sequence":"additional","affiliation":[{"name":"Department of Reproductive Immunology and Pathology Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland 1Laboratory of Reproductive Endocrinology Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomas J","family":"Acosta","sequence":"additional","affiliation":[{"name":"Department of Reproductive Immunology and Pathology Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland 1Laboratory of Reproductive Endocrinology Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kiyoshi","family":"Okuda","sequence":"additional","affiliation":[{"name":"Department of Reproductive Immunology and Pathology Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland 1Laboratory of Reproductive Endocrinology Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dariusz J","family":"Skarzynski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2010,3,1]]},"reference":[{"key":"2026010712531738900_bib1","doi-asserted-by":"crossref","first-page":"1445","DOI":"10.1172\/JCI115453","article-title":"Interleukin 1 receptor antagonist. 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