University of Georgia researchers have developed a new formulation of cisplatin, a common chemotherapy drug, that significantly increases the drug’s ability to target and destroy cancerous cells. Cisplatin may be used to treat a variety of cancers, but it is most commonly prescribed for cancer of the bladder, ovaries, cervix, testicles and lung. It is an effective drug, but many cancerous cells develop resistance to the treatment. Shanta Dhar is an assistant professor of chemistry in the UGA Franklin College of Arts and Sciences. Shanta Dhar, assistant professor of chemistry in the UGA Franklin College of Arts and Sciences, and Rakesh Pathak, a postdoctoral researcher in Dhar’s lab, constructed a modified version of cisplatin called Platin-M, which is designed to overcome this resistance by attacking mitochondria within cancerous cells. They published their findings recently in the Proceedings of the National Academy of Sciences. “You can think of mitochondria as a kind of powerhouse for the cell, generating the energy it needs to grow and reproduce,” said Dhar, a member of the UGA Cancer Center and principal investigator for the project. “This prodrug delivers cisplatin directly to the mitochondria in cancerous cells. Without that essential powerhouse, the cell cannot survive.” Shanta
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