Insulin like Growth Factor-1(IGF-1)

Presentation by Athira E
Peer Reviewers : Sydney & Navya
Introduction
Insulin-like growth factor-1 (IGF-1), also called Somatomedin C, is a polypeptide hormone similar to insulin. IGF-1 plays an important role in promoting tissue growth and can cross the blood-brain barrier (BBB). It has a synergistic action with estrogen to maintain brain homeostasis during ageing (Castilla-Cortázar et al., 2020). IGF-1 acts on all body tissues to promote growth and maturation. It also plays a role in brain development, adult neural reorganization and neural cell production (Bondy & Cheng, 2004). Reduced IGF-1 levels are generally shown to cause dysregulation of neurovascular systems (Gubbi et al., 2018). IGF-1 can be a potential intervention for brain remodeling and ageing in future.
Future Research
More studies necessary to understand the involvement of IGF-1 in Parkinson’s disease and cerebrovascular conditions.
More human studies are essential to show that the down-regulation of IGF-1 prolongs lifespan.
References
Bondy, C. A., & Cheng, C. M. (2004). Signaling by insulin-like growth factor 1 in brain. European journal of pharmacology, 490(1-3), 25-31. doi.org/10.1016/j.ejphar.2004...
Castilla-Cortázar, I., Aguirre, G.A., Femat-Roldán, G. et al. Is insulin-like growth factor-1 involved in Parkinson’s disease development?. J Transl Med 18, 70 (2020). doi.org/10.1186/s12967-020-02...
Gubbi, S., Quipildor, G. F., Barzilai, N., Huffman, D. M., & Milman, S. (2018). 40 YEARS of IGF1: IGF1: the Jekyll and Hyde of the aging brain. Journal of molecular endocrinology, 61(1), T171-T185. doi.org/10.1530/JME-18-0093

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