"Our Cleveland-based collaborative research teams revealed that increasing HEXIM1 levels brought normal functioning hearts up to an athletic level, which could perhaps stand up to the physical insults of various cardiovascular diseases," Watanabe said.
The results build on the team's findings last year that showed increased levels of HEXIM1 suppressed the growth of breast cancer tumors. Using a well-known mouse model of breast cancer metastasis, researchers induced the gene's expression by locally delivering a drug, hexamethylene-bisacetamide using an FDA-approved polymer. The strategy increased local HEXIM1 levels and inhibited the spread of breast cancer. The team is currently making a more potent version of the drug and intends to move to clinical trials within a few years.
"Many cancer drugs have detrimental effects on the heart," said Mukesh K. Jain, MD, FAHA, professor of medicine, Ellery Sedgwick Jr. Chair and director of Case Cardiovascular Research Institute at Case Western Reserve School of Medicine. "It would be beneficial to have a cancer therapeutic with no adverse effects on the heart and perhaps even enhance its function."
The Case Western Reserve-led research team is now investigating HEXIM1's ability to improve the health of mice with cardiovascular disease. They are investigating
|Contact: Jessica Studeny|
Case Western Reserve University