Navigation Links
Discoveries point to more powerful cancer treatments, fewer side effects
Date:2/27/2014

What if there were a way to make chemotherapy and radiation more effective as cancer treatments than they are today, while also getting rid of debilitating side effects that patients dread? 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 the day that happens could be getting closer.

Side effects such as heart damage, nausea and hair loss occur when cancer therapy kills healthy cells along with the malignant cells that are being targeted. It is a medical form of collateral damage. But Ryazanov explains that if a way could be found to protect 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 key to Ryazanov's vision of cancer treatment is addition by subtraction specifically elimination of eEF2K an enzyme that influences 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 complicated processes for which that enzyme is responsible.

Ryazanov's latest findings, published in the journal Developmental Cell, demonstrate that the presence of eEF2K 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 way to preserve genetic quality from one generation to the next.

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

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

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 specifically designed to block cell division, and Ryazanov says removing the enzyme eEF2K actually makes the cancer cells more vulnerable 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 already underway, and Ryazanov hopes that his new findings will speed 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 nice logic to the research and drug development that have become his life's work because the cancer therapies he wants to enhance already exist and are known to work. Making chemo and radiation less toxic, he says, 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.


'/>"/>

Contact: Rob Forman
robert.forman@rutgers.edu
973-972-7276
Rutgers University
Source:Eurekalert

Related medicine news :

1. Cancer targeted treatments from space station discoveries
2. New Discoveries to Prevent Winter Dry Eye
3. Ohio State and Microlin Bio Inc. to bring transformational cancer discoveries to patients
4. Alzheimer’s Disease: Landmark Gene Discoveries Open Up New Therapeutic Opportunities
5. Yves Pichon’s New Book Presents Latest Neurophysiological Discoveries
6. Gene Discoveries Give Hope Against Brittle Bone Disease
7. Smell and taste experts to discuss new discoveries
8. LSUHSC research discoveries shed light on common STI
9. New discoveries linking gut bacteria with cholesterol metabolism give hope for the future
10. $50 million to speed discoveries for patients
11. Register now! San Diego meeting will showcase latest aging discoveries
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is helping ... fitness app. The fitness app plans to fix the two major problems leading the fitness ... size fits all type program , They don’t eliminate all the reasons people ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... "With 30 ... their specific project," said Christina Austin - CEO of Pixel Film Studios. , ... and all within Final Cut Pro X . Simply select a ProHand generator ...
(Date:6/25/2016)... ... ... Conventional wisdom preaches the benefits of moderation, whether it’s a matter of indulgence ... high can result in disappointment, perhaps even self-loathing. However, those who set the bar ... from PsychTests.com reveals that behind the tendency to set low expectations is ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... Conference and Scientific Sessions in Dallas that it will receive two significant new ... the grants came as PHA marked its 25th anniversary by recognizing patients, medical ...
(Date:6/24/2016)... ... , ... People across the U.S. are sharpening their pencils and honing their ... in which patients and their families pay tribute to a genetic counselor by nominating ... of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. , In April, ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... INDIANAPOLIS , June 23, 2016 Roche ... received 510(k) clearance for its Elecsys BRAHMS PCT (procalcitonin) ... severe sepsis or septic shock. With this clearance, Roche ... provide a fully integrated solution for sepsis risk assessment ... associated with bacterial infection and PCT levels in blood ...
(Date:6/23/2016)... VIEW, Calif. , June 23, 2016 ... a.m. CST on Thursday, July 7, 2016 , , , ... kayla.belcher@frost.com ) , , , , EXPERT PANELISTS:  , ... Nitin Naik; Senior Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa ... The global pharmaceutical industry is witnessing an ...
(Date:6/23/2016)... 23, 2016 The vast majority of dialysis ... facility.  Treatments are usually 3 times a week, with ... including travel time, equipment preparation and wait time.  This ... grueling for patients who are elderly and frail.  Many ... and rehabilitation centers for some duration of time. ...
Breaking Medicine Technology: