{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T01:19:33Z","timestamp":1792804773201,"version":"4.5.0"},"reference-count":74,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2022,9,20]],"date-time":"2022-09-20T00:00:00Z","timestamp":1663632000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["32072706"],"award-info":[{"award-number":["32072706"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]},{"name":"National Natural Science Foundation of China","award":["U1901206"],"award-info":[{"award-number":["U1901206"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]},{"name":"National Natural Science Foundation of China","award":["0020404153033"],"award-info":[{"award-number":["0020404153033"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]},{"name":"National Natural Science Foundation of China","award":["2021SCU12101"],"award-info":[{"award-number":["2021SCU12101"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Interdisciplinary Innovation Start-up Fund","award":["32072706"],"award-info":[{"award-number":["32072706"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Interdisciplinary Innovation Start-up Fund","award":["U1901206"],"award-info":[{"award-number":["U1901206"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Interdisciplinary Innovation Start-up Fund","award":["0020404153033"],"award-info":[{"award-number":["0020404153033"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Interdisciplinary Innovation Start-up Fund","award":["2021SCU12101"],"award-info":[{"award-number":["2021SCU12101"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Research and Development Fund","award":["32072706"],"award-info":[{"award-number":["32072706"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Research and Development Fund","award":["U1901206"],"award-info":[{"award-number":["U1901206"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Research and Development Fund","award":["0020404153033"],"award-info":[{"award-number":["0020404153033"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Sichuan University Postdoctoral Research and Development Fund","award":["2021SCU12101"],"award-info":[{"award-number":["2021SCU12101"]}],"id":[{"id":"https:\/\/ror.org\/011ashp19","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Genes"],"abstract":"<jats:p>Corticotropin (ACTH) is a pituitary hormone playing important roles in stress response within the hypothalamus\u2013pituitary\u2013adrenal (HPA) axis. The biosynthesis and secretion of ACTH are controlled by multiple factors, including corticotropin-releasing hormone (CRH). As a key hypothalamus-derived regulator, CRH binds to corticotropin-releasing hormone receptor 1 (CRHR1) in the anterior pituitary gland to regulate ACTH synthesis and release. Thus, CRH-binding protein (CRHBP), which binds CRH with high affinity to inhibit CRH-induced ACTH secretion from pituitary cells, draws wide attention. In contrast to the extensive investigation of CRHBP in mammals and other lower vertebrates, the gene structure, tissue expression and physiological functions of CRHBP in birds remain largely unknown. In the present study, using chicken (c-) as our animal model, we examined the gene structure, tissue expression and functionality of CRHBP. Our results showed that: (1) cCRHBP cDNA encodes a 345 amino acid precursor, which shares high sequence identity with that of mammals, reptiles, frogs and fish; (2) cCRHBP is abundantly expressed in the brain (cerebrum and hypothalamus), pituitary and ovary; (3) cCRHBP inhibits the signaling of cCRHRs induced by cCRH, thus reducing the cCRH-induced ACTH secretion from cultured chick pituitary cells; (4) stress mediators (e.g., glucocorticoids) and stress significantly upregulate CRHBP mRNA expression in chickens, supporting its role as a negative feedback regulator in the HPA axis. The present study enriches our understanding of the conserved roles of CRHBP across vertebrates. In addition, chicken is an important poultry animal with multiple economic traits which are tightly controlled by the HPA axis. The characterization of the chicken CRHBP gene helps to reveal the molecular basis of the chicken HPA axis and is thus beneficial to the poultry industry.<\/jats:p>","DOI":"10.3390\/genes13101680","type":"journal-article","created":{"date-parts":[[2022,9,20]],"date-time":"2022-09-20T21:12:53Z","timestamp":1663708373000},"page":"1680","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Characterization of CRH-Binding Protein (CRHBP) in Chickens: Molecular Cloning, Tissue Distribution and Investigation of Its Role as a Negative Feedback Regulator within the Hypothalamus\u2013Pituitary\u2013Adrenal Axis"],"prefix":"10.3390","volume":"13","author":[{"given":"Yiping","family":"Wan","sequence":"first","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zheng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"},{"name":"Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongliang","family":"Lin","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinglong","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianjiao","family":"Huang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiancheng","family":"Su","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7401-7401","authenticated-orcid":false,"given":"Jiannan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yajun","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"T135","DOI":"10.1530\/JME-15-0257","article-title":"60 years of POMC: Adrenal and extra-adrenal functions of ACTH","volume":"56","year":"2016","journal-title":"J. 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