TNPSC Thervupettagam
October 18 , 2024 14 hrs 0 min 21 0
  • The Scientists from the Indian Association for the Cultivation of Science (IACS), Kolkata, have identified a new therapeutic target by activating a DNA repair enzyme called Tyrosyl-DNA phosphodiesterase 1 (TDP1).
  • Current anticancer drugs like Camptothecin, Topotecan, and Irinotecan focus on inhibiting the enzyme Topoisomerase 1 (Top1).
  • Cancer cells often develop resistance to these drugs, leading the researchers to explore alternative treatment strategies.
  • The researchers have discovered that cancer cells can survive Top1-targeted chemotherapy by activating TDP1, which helps repair damaged DNA during cell division.
  • This process allows the cancer cells to counteract the effects of chemotherapy and continue proliferating.

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