EnglishIt is common opinion that maximal activation of luteinizing hormone (LH)-dependent steroidogenic signal occurs at <1% of human LH/choriogonadotropin (hCG) receptor (LHCGR) occupancy. This effect would be a consequence of an excess of receptors expressed on the surface of theca cells, resulting in a pool of LHCGRs remaining unbound (spare). This concept was borrowed from historical pharmacological studies, when discrepancies between ligand-receptor binding and dose-response curves of cAMP were evaluated by treating mouse or rat Leydig cells with hCG in vitro. Recent findings demonstrated the specificity of LH- and hCG-dependent effects, receptor heterodimerization, and differing behaviors of rodent versus human gonadotropin-responsive cells, which may help to revise the 'spare' LHCGRs concept applied to human ovarian physiology and assisted reproduction.
'Spare' Luteinizing Hormone Receptors: Facts and Fiction / Casarini, Livio; Santi, Daniele; Simoni, Manuela; Potì, Francesco.. - In: TRENDS IN ENDOCRINOLOGY AND METABOLISM. - ISSN 1043-2760. - (2018), pp. 208-217. [10.1016/j.tem.2018.01.007]
| Data di pubblicazione: | 2018 | |
| Data di prima pubblicazione: | 9-feb-2018 | |
| Titolo: | 'Spare' Luteinizing Hormone Receptors: Facts and Fiction. | |
| Autore/i: | Casarini, Livio; Santi, Daniele; Simoni, Manuela; Potì, Francesco. | |
| Autore/i UNIMORE: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.tem.2018.01.007 | |
| Rivista: | ||
| Pagina iniziale: | 208 | |
| Pagina finale: | 217 | |
| Codice identificativo ISI: | WOS:000427915900004 | |
| Codice identificativo Scopus: | 2-s2.0-85041648586 | |
| Codice identificativo Pubmed: | 29429918 | |
| Citazione: | 'Spare' Luteinizing Hormone Receptors: Facts and Fiction / Casarini, Livio; Santi, Daniele; Simoni, Manuela; Potì, Francesco.. - In: TRENDS IN ENDOCRINOLOGY AND METABOLISM. - ISSN 1043-2760. - (2018), pp. 208-217. [10.1016/j.tem.2018.01.007] | |
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