ArticleJournal of clinical biochemistry and nutrition2024
Involvement of α-klotho in growth hormone (GH) signaling.
Article in Journal of clinical biochemistry and nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Role of soluble alpha-klotho as a novel biomarker for characterizing children with autism spectrum disorder in Kurdistan, Iraq.World journal of clinical pediatrics · 2026Article
- Serum osteocalcin as a novel biomarker for differentiating growth hormone deficiency from idiopathic short stature.Frontiers in endocrinology · 2026Article
- Growth hormone treatment associates with improved circulating anti-aging protein Klotho and reduced arterial stiffness in children with CKD.Clinical kidney journal · 2025Article
- Down-Regulation of Klotho/FGF23 by Low-Expressed VEGFR2 Inhibits the GH/IGF-1/PI3K/AKT Signaling Pathway Inducing Intrauterine Growth Restriction in Rats.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025Article
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Authors and funding
11 authors.
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Abstract
Growth hormone (GH) exerts multiple effects on different organs directly or via its main mediator, insulin-like growth factor1 (IGF1). In this study, we focused on the novel relationship between GH action and the antiaging hormone α-klotho. Immunofluorescent staining of α-klotho was observed in the renal distal tubules and pituitary glands of somatostatin- and GH-positive cells in wild-type (WT) mice. Treatment of 4-week-old WT mice with GH increased IGF1 mRNA expression in the pituitary gland, liver, heart, kidney, and bone but increased α-klotho mRNA expression only in the pituitary gland, kidney, and bone. Increased α-klotho protein levels were observed in the kidney but not in the pituitary gland. No induction of α-klotho RNA expression by GH was observed in juvenile mice with kidney disease, indicating GH resistance. Furthermore, GH and α-klotho supplementation in HEK293 cells transfected with GHR increased Janus kinase 2 mRNA (a GH downstream signal) expression compared to supplementation with GH alone. In conclusion, we suggest that 1) the kidney is the main source of secreted α-klotho, which is detected in blood by the downstream action of GH, 2) α-klotho induction by GH is resistant in kidney disease, and 3) α-klotho might be an enhanced regulator of GH signaling.
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