{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T18:32:30Z","timestamp":1782498750387,"version":"3.54.5"},"reference-count":42,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2021,5,1]],"date-time":"2021-05-01T00:00:00Z","timestamp":1619827200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Thyroid\u00ae"],"published-print":{"date-parts":[[2021,5]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>\n                      Thyrotropin (TSH) is well known as the hormone of the anterior pituitary thyrotrophs responsible for acting in the thyroid gland, where it stimulates synthesis and release of thyroid hormones through G\n                      <jats:sub>s<\/jats:sub>\n                      and G\n                      <jats:sub>q\/11<\/jats:sub>\n                      protein coupled TSH receptors (TSHRs).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>In this study, we examined whether the functional TSHRs are also expressed in cultured rat pituitary cells, using double immunocytochemistry, quantitative reverse transcription-polymerase chain reaction analysis, cAMP and hormone measurements, and single-cell calcium imaging.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Double immunocytochemistry revealed the expression of TSHRs in cultured corticotrophs and melanotrophs, in addition to previously identified receptors in folliculostellate cells. The functional coupling of these receptors to the G\n                      <jats:sub>q\/11<\/jats:sub>\n                      signaling pathway was not observed, as demonstrated by the lack of TSH activation of IP\n                      <jats:sub>3<\/jats:sub>\n                      -dependent calcium mobilization in these cells when bathed in calcium-deficient medium. However, TSH increased cAMP production in a time- and concentration-dependent manner and facilitated calcium influx in single corticotrophs and melanotrophs, indicating their coupling to the G\n                      <jats:sub>s<\/jats:sub>\n                      signaling pathway. Consistent with these findings, TSH stimulated adrenocorticotropin and \u03b2-endorphin release in male and female pituitary cells in a time- and concentration-dependent manner without affecting the expression of proopiomelanocortin gene.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>These results indicate that TSH is a potential paracrine modulator of anterior pituitary corticotrophs and melanotrophs, controlling the exocytotic but not the transcriptional pathway in a cAMP\/calcium influx-dependent manner.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/thy.2020.0222","type":"journal-article","created":{"date-parts":[[2020,11,16]],"date-time":"2020-11-16T02:50:10Z","timestamp":1605495010000},"page":"850-858","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Expression and Role of Thyrotropin Receptors in Proopiomelanocortin-Producing Pituitary Cells"],"prefix":"10.1177","volume":"31","author":[{"given":"Rafael Maso","family":"Pr\u00e9vide","sequence":"first","affiliation":[{"name":"Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA."},{"name":"CAPES Foundation, Ministry of Education of Brazil, Bras\u00edlia, Brazil."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Wang","sequence":"additional","affiliation":[{"name":"Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kosara","family":"Smiljanic","sequence":"additional","affiliation":[{"name":"Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marija M.","family":"Janjic","sequence":"additional","affiliation":[{"name":"Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Tereza","family":"Nunes","sequence":"additional","affiliation":[{"name":"Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stanko S.","family":"Stojilkovic","sequence":"additional","affiliation":[{"name":"Section on Cellular Signaling, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,5,3]]},"reference":[{"key":"e_1_3_5_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0969-2126(01)00272-6"},{"key":"e_1_3_5_3_2","doi-asserted-by":"publisher","DOI":"10.3389\/fendo.2017.00086"},{"key":"e_1_3_5_4_2","first-page":"596","article-title":"The thyrotropin receptor and the regulation of thyrocyte function and growth","volume":"13","author":"Vassart G","year":"1992","unstructured":"Vassart G, , Dumont JE. 1992. 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