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Study Shows Stronger Cancer Treatments with Fewer Side Effects

Study Shows Stronger Cancer Treatments with Fewer Side Effects

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stronger cancer treatment

A new study led by Alexey Ryazanov, a professor of pharmacology at Rutgers Robert Wood Johnson Medical School and member of the Rutgers Cancer Institute of New Jersey, suggests finding a way to make chemotherapy and radiation more effective as cancer treatments than they currently are, in addition to removing crippling side effects that patients fear.

Side effects such as heart damage, nausea, and hair loss happens when cancer therapy kills healthy cells alongside the malignant cells that are being targeted. It is a medical form of collateral damage. However, Ryazanov delineates that if a way could be found to safeguard those healthy cells, then doses of chemo and radiation could actually be increased, "killing all the cancer cells and the patient would be cured. We also could start treating cancers that now can't be cured because the most effective doses are too toxic to normal tissues."

The solution to Ryazanov's vision of cancer treatment is addition by subtraction, particularly elimination of eEF2K, an enzyme that impacts the rates at which proteins are created in the human body. Ryazanov first identified eEF2K more than a quarter century ago, and since then, bit by bit, he and other scientists have uncovered many intricate processes for which that enzyme is responsible.

Ryazanov's latest findings, published in the journal Developmental Cell, reveal that the existence of eEF2K deliberately weakens healthy cells. His evidence is the enzyme's involvement in a process where defective cells involved in reproduction are degraded and ultimately destroyed, as a means to preserve genetic quality from one generation to the next.

“Still, there is eEF2K in every cell in the body, the enzyme's presence tends to leave cells less robust than they otherwise would be.It is that added weakness that leaves healthy cells vulnerable to being poisoned by chemo and radiation,” Ryazanov explained.

Ryazanov notes that removing the enzyme would make those healthy cells stronger, to the point where they would survive cancer therapy, and that, in turn, would terminate the side effects.

Yet, how would healthy cells survive cancer treatment while malignant cells would not? Ryazanov explains that tumors grow and cancer spreads when malignant cells divide and duplicate. Chemo and radiation are purposefully designed to obstruct cell division, and Ryazanov says removing the enzyme eEF2K actually makes the cancer cells more susceptible to the treatment. By contrast, as long as healthy cells are strong enough to resist being poisoned, the cancer therapies won't hurt them.

In 2008, Ryazanov founded Longevica Pharmaceuticals, a company whose mission is to perfect medications designed to eliminate the enzyme and improve the performance of chemo and radiation. Animal testing is has already been commenced, and Ryazanov hopes that his new findings will lead to the day when medications that pass those tests can be tried in people. He even predicts that taking such a drug may be as easy as swallowing a pill.

Ryazanov says there is a comforting logic to the research and drug development that have become his life's work, due to the fact that the cancer therapies he wants to enhance and improve already exist and are known to work.

“Making chemo and radiation less toxic can make those therapies dramatically more effective in the relatively near future, while other cutting-edge approaches to cancer treatment might need far more time to prove their ultimate worth,” he said.


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