The present invention relates to a polypeptide for delaying
telomere shortening and its application, and belongs to the field of
biotechnology. The present invention provides a polypeptide for delaying
telomere shortening, and the
amino acid sequence of the polypeptide is shown in SEQ ID NO.1. Studies have shown that the polypeptide has high
biological activity and can significantly slow down the
cell aging process by delaying
telomere shortening, increasing the expression level of
telomerase reverse transcriptase, increasing the activity of
telomerase, and inhibiting the expression level of β-galactosidase. In addition, the polypeptide is derived from the
fermentation process of natural dairy products and has high safety and low risk of side effects. In addition, the polypeptide has a small molecular weight and is easily absorbed by the
human body, which can improve the
bioavailability of the
drug. Therefore, the polypeptide has great application prospects in delaying telomere shortening, anti-aging, and the treatment of diseases related to telomere loss or dysfunction.