Follicle stimulating hormone receptor expression in human pancreas and effects on insulin secretion: A translational study
Aydin, B. K.; Incedal Nilsson, C.; Chowdhury, A.; Wen, Q.; Cerenius, S. Y.; Stenlid, R.; Morwald, K.; Ciba, I.; Manell, H.; Weghuber, D.; Forslund, A.; Idevall-Hagren, O.; Bergsten, P.
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Follicle-stimulating hormone (FSH) is traditionally known for its role in reproduction, but recent studies suggest it may also influence metabolic processes. This study aimed to examine FSH receptor (FSHR) expression in human pancreatic islets and the direct effects of FSH on insulin secretion, as well as explore FSHs metabolic role during puberty, focusing on enhanced insulin secretion during this critical period. FSHR gene and protein expression were detected in isolated human pancreatic islets and co-localized with insulin-producing beta-cells. Additionally, FSH at prepubertal (0.1 IU/L) and pubertal concentrations (10 IU/L) significantly enhanced glucose-stimulated insulin secretion (GSIS) and increased intracellular cAMP concentrations in intact human pancreatic islets. In children with obesity from the Beta-JUDO cohort (n=608), plasma FSH levels were positively associated with several insulin secretion indices, particularly in pubertal children. These findings suggest that FSH has significant metabolic roles beyond reproduction, involving insulin secretion and potentially contributing to puberty-related hyperinsulinemia and insulin resistance.
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