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New Protein Could Revolutionize Chemo Treatment
28 Jun
Summary
- A newly identified protein may allow chemotherapy to target tumors more effectively.
- Researchers found HSF1 protein influences TOP2B enzyme differently than TOP2A.
- This discovery could lead to cancer treatments with fewer side effects.
A significant breakthrough in cancer research may soon lead to more precise chemotherapy treatments. Scientists have identified a stress-response protein, HSF1, that could allow these powerful drugs to target tumors more effectively while sparing healthy organs.
The research, conducted by teams at the University of Sheffield and UT Southwestern Medical Center, focuses on TOP2 poisons, a class of chemotherapy drugs. These drugs disrupt enzymes essential for cell division, a mechanism that targets fast-growing cancer cells but can also harm healthy cells, including brain and heart tissue.
The newly identified HSF1 protein seems to selectively influence the TOP2B enzyme, a form also utilized by some healthy cells, distinct from the TOP2A enzyme. This differentiation offers a potential pathway for developing safer chemotherapy.
Initial in vitro studies using mouse cells showed that combining TOP2 chemotherapy with an HSF1 inhibitor greatly reduced toxicity in healthy cells while preserving the treatment's anti-cancer effects. Researchers are now planning further studies, including animal trials, to assess the safety and effectiveness of this strategy in protecting mice from chemotherapy's secondary toxicities.
