ArticleScientific reports2024
Molecular characteristics and regulatory role of insulin-like growth factor 1 gene in testicular Leydig cells of Tibetan sheep.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Multi-omic analysis of the liver-breast axis reveals key hepatic mediators of breast cancer progression.Science China. Life sciences · 2026Review
- METTL3 regulates Leydig cell proliferation via miR-145-PCK1 mediated gluconeogenesis in goats.Journal of animal science and biotechnology · 2026Article
- Transcriptomics identified crucial candidate genes and pathways regulating early testicular development of drakes in the hypothalamic-pituitary-gonadal/thyroid axes.BMC genomics · 2026Article
- The EV-mitochondrial outsourcing network as a therapeutic target for age-related testosterone deficiency: from network collapse to clinical intervention.Frontiers in endocrinology · 2026Review
- Whole Transcriptome Sequencing and Differential Analysis of Testes in Pre- and Post-Sexual MaturityBiology · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
This study aimed to analyze the molecular characteristics of insulin-like growth factor 1 (IGF1) gene in the testes of Tibetan sheep and its role in the testosterone synthesis and cell development. First, we cloned IGF1 gene for bioinformatics analysis, and the primary Leydig cells (LCs) of Tibetan sheep were isolated to explore its effect on the proliferation, apoptosis and function of LCs. Finally, the specific regulatory mechanism of IGF1 on LCs was analyzed by transcriptome sequencing. Results showed that overexpression of IGF1 increased the proliferation rate and decreased apoptosis of LCs. In addition, overexpression of IGF1 altered expression of genes related to testosterone synthesis and transformation and significantly increased amount of the final product testosterone. Mechanistically, IGF1 stimulated the expression of the proliferating cell nuclear antigen and IGF1R and promoted the proliferation of LCs via the PI3K/Akt signaling pathway. Collectively, what should be clear from the results reported here is that IGF1 might play roles in the proliferation or differentiation and testosterone synthesis of LCs. These findings add to our understanding on the regulation of testosterone synthesis in sheep and other mammals.
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Registered trials
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