Friday, July 4, 2014

CDC Reinstates $2.2M Grant to Fund the Mesothelioma Tissue Bank

Doctor Working With Tissue

The mesothelioma community â€" researchers, doctors, patients, families and advocates â€" received a much-needed boost this week when the Centers for Disease Control and Prevention (CDC) reversed an earlier decision and reinstated funding for the National Mesothelioma Virtual Bank (NMVB).

Officials at the CDC in June restored a two-year, $2.2 million federal grant that will carry the NMVB through 2016.

"Without this [funding], research of mesothelioma could have stagnated," Michael Feldman, M.D., Ph.D., professor of Pathology and Laboratory Medicine at the University of Pennsylvania, told Asbestos. com. "It [NMVB] is like the cornerstone of a building: A foundation on which to build upon and so important for any advancement. We're very pleased right now."

The NMVB is a biospecimen registry designed to facilitate scientific research and advance the goal of developing novel therapies, preventative measures, diagnostic tools and eventually a cure for mesothelioma.

It provides tissue samples, paraffin-embedded blood products and a vast amount of other clinicopathological information free for researchers around the country.

Everyone Should Benefit

The NMVB, which was founded in 2006, is the only federally funded program specifically designed for mesothelioma research. It is a collaborative effort involving the University of Pittsburgh Medical Center, the New York University School of Medicine, the University of Pennsylvania School of Medicine, and the Mount Sinai School of Medicine.

The theory behind the NMVB is that researchers everywhere, at various levels and in various disciplines, are eligible to apply for tissue specimens. Officials believe that kind of open sharing will spark new ideas and become a national model and a leader among tissue banks.

Researchers in recent years have made significant strides in trying to accomplish that goal. For example, they’ve been helping doctors extend patient survival rates. Novel treatments in recent years, many in clinical trials, are revolving around immunotherapy, where designer drugs help a body's own immune system fight the cancer.

"This was not a good time to be scaling back," Feldman said. "We're at a crossroads [with mesothelioma]. We're better understanding this disease and seeing real progress. It would have been the worst time to cutting back the research."

What Led to the Loss of Funding?

Under mounting problems with raising the debt limit, the federal government in 2013 put the budget sequester into place. More than $85 billion in automatic spending cuts affected health care, nonprofit organizations and scientific research and more.

As part of the sequester, the CDC, in association with the National Institute of Occupational Safety and Health (NIOSH), told the NMVB they would no longer fund it.

The NMVB then informed researchers that after Sept. 1, 2014, tissue samples might no longer be available for free and expansion was in doubt.

Looking Ahead

The reversal in funding means that researchers can continue working on medical innovations in the treatment of mesothelioma.

There are more than 1,300 biospecimens in the tissue bank today and researchers plan to expand it significantly with the addition of new medical centers. Those plans had been sidetracked by the announcement in 2013 that left everyone in limbo.

While the NMVB is the only agency eligible to receive this grant money, it still must submit an official application before July 31, 2014 to the Procurement and Grants Office of the Department of Health and Human Services.

"We had been working to try and get this reinstated, but you never know until someone says yes. There are no guarantees with these budgets," said Feldman, a member of the Research Evaluation Panel for the NMVB. "We are fortunate, but we won't rest on our good fortune. We're already looking to see what the next opportunity [beyond 2016] is."

Related News Posts

Tuesday, July 1, 2014

Could Red Wine Enhance Effectiveness of Chemotherapy for Mesothelioma?

Pouring a Glass of Red Wine

Researchers in South Korea have uncovered an unusual synergy between a chemical found in red wine and a drug used to treat childhood leukemia that has translated into a potential future treatment options for malignant mesothelioma.

The combination of resveratrol, which comes from the skin of red grapes, and the drug clofarabine, has shown an ability to make mesothelioma cells much more vulnerable to chemotherapy.

Researchers found the resveratrol/clofarabine combination prevented tumor cell proliferation and triggered programmed cell death. It also left healthy cells untouched.

"I think that our results showed therapeutic potential in overcoming chemo-resistance against malignant mesothelioma," researcher Sang-Han Lee, biochemistry professor in the College of Medicine at Soonchunhyang University, told Asbestos.com. "We have been struggling to find effective therapeutic agents for mesothelioma. I hope our dream [of finding one] comes true sooner rather than later."

Not So Fast Says Researcher

Lee was quick to caution against too much optimism, emphasizing the findings were in vitro, and a long way from even reaching the clinical trial stage where it can reach the actual patients who need it quickly.

"Further studies are needed," Lee said. "A lot of drugs have been demonstrated to be effective in in vitro study, and most of them fail in preclinical animal testing for a number of reasons. We still need time and efforts for the development of an effective systemic treatment regimen."

One of the biggest challenges with cancer treatments is finding a drug combination that avoids the healthy cells while killing the malignant cells. The ability of the resveratrol/clofarabine combination to provide a better target for the chemotherapy is what has researchers intrigued.

Clofarabine for Childhood Leukemia

Clofarabine is typically used to treat actue lymphoblastic leukemia that has recurred or resisted chemotherapy treatments with children. It is part of antimetabolites drug group that prevents cells from making RNA and DNA, halting the growth of cancer cells.

Resveratrol, which is found in both red wine and grape juice, has been studied in previous cancer research but with mixed results. South Korean researchers have shown it to be effective in suppressing tumor growth in laboratory mice. Other scientists have been skeptical.

There is little scientific proof that resveratrol works in human cancers, and it has not been FDA approved, but it is among several medicinal alternatives that some patients insist have helped them. That group of alternatives includes plant extracts, teas, vitamins, minerals and amino acids.

Family doctors have encouraged patients for years to drink a daily glass of red wine to help with cardiovascular health. Korean researchers previously found that drinking red wine was effective with mesothelioma cells because of its interaction with a specific protein known as Sp1.

The Synergistic Effect Works Well

The latest research revolves around another protein known as Mcl-1 and how the synergistic effect of resveratrol/clofarabine activates "caspases," which are proteins that cause tumor cell death.

Mesothelioma, which is caused primarily by asbestos exposure, is a cancer without a definitive cure. Chemotherapy, too often, is not an effective, long-term tool in fighting it. Overcoming the resistance to chemotherapy has been a goal of researchers for many years.

And while the incidence of mesothelioma cancer has begun to show a decline in the U.S., it continues to rise in several, still-developing countries like South Korea, where asbestos products still are being used.

"We are still in the early st ages [of this research]," Lee said. "Our studies have been aimed at finding the potential roles of natural compounds … for higher efficacy of chemotherapeutic regimens, and for alleviating their adverse effects. It still needs the accumulation of more valuable data for the preclinical and clinical setting."

Related News Posts