TERT Inhibitors

Telomerase reverse transcriptase (TERT) is a catalytic subunit of telomerase, an enzyme essential for the maintenance of telomeres, the protective caps at the ends of chromosomes. Telomeres play a crucial role in preserving genomic stability and integrity by preventing chromosomal degradation and fusion. TERT functions primarily by adding repetitive DNA sequences to the ends of chromosomes during cell division, counteracting the natural shortening of telomeres that occurs with each round of DNA replication. By extending telomeres, TERT helps to ensure the longevity and replicative capacity of cells, particularly in highly proliferative tissues such as stem cells and cancer cells. Inhibition of TERT is a significant area of research due to its implications in cancer therapy and age-related diseases. Various mechanisms have been proposed to inhibit TERT activity, targeting different stages of telomerase function. One approach involves interfering with the assembly or stability of the telomerase complex, preventing TERT from binding to its RNA component or other associated proteins. Another strategy focuses on disrupting the catalytic activity of TERT itself, inhibiting its ability to synthesize telomeric DNA. Additionally, inhibition of TERT expression or telomerase trafficking to telomeres has been explored as means to limit telomere elongation and induce cellular senescence or apoptosis. Understanding the precise mechanisms of TERT inhibition is critical for the development of novel strategies aimed at targeting telomerase activity in various disease contexts.