“<Dr. Sheets> was first author of a recent paper in the Journal of the American Medical Association on the comparative effectiveness of IMRT radiation therapy for prostate cancer with proton beam therapy”

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*Health-E-NC is a statewide effort to improve cancer outcomes for diseases that affect North Carolina's citizens. Sponsored by the UNC Lineberger Comprehensive Cancer Center and the University Cancer Research Fund, the effort is aimed at finding innovative approaches to cancer prevention, detection, diagnosis, treatment and survivorship, and spreading the latest and best evidence-based cancer information to health care providers, advocacy groups, cancer patients, their families and survivors.

Dr. Donita Brady, a recent doctoral recipient from Dr. Adrienne Cox's lab, was awarded First Place for best basic science poster at the 2008 UNC Lineberger Annual Scientific Retreat.

Congratulations to Dr. Ron Chen for receiving research funding from the Radiation Therapy Oncology Group (RTOG) for a grant entitled “A Study to Evaluate Cardiovascular Risk Factors and Receipt of Primary and Preventive Care in Prostate Cancer Patients who Receive Definitive Radiation Therapy and Androgen Deprivation Therapy”.

Comparative effectiveness of intensity modulated radiation therapy, proton therapy and conformal radiation therapy in the treatment of localized prostate cancer.

Other authors are: Meyer AM, Wu Y, Chang YK, Sturmer T, Reeve BB, Godley PA, and Carpenter WR.

Read more here

CHAPEL HILL, N.C. - Current nanomedicine research has focused on the delivery of established and novel therapeutics. But a UNC team is taking a different approach. They developed nanoparticle carriers to successfully deliver therapeutic doses of a cancer drug that had previously failed clinical development due to pharmacologic challenges. They report their proof of principle findings in the April 30, 2012 early online edition of Proceedings of the National Academy of Sciences.

Wortmannin is a drug that was highly promising as a cancer drug, but its successful preclinical studies did not translate into clinical efficacy because of challenges such as high toxicity, low stability and low solubility (unable to be dissolved in blood).

Andrew Z. Wang, MD, study senior author, says, “Drug development is a difficult and expensive process. For a cancer drug to make it to clinical use, it not only has to be effective against cancer cells, but also needs to have low toxicity, good stability and good solubility. Many promising drugs such as wortmannin failed clinical development because they failed one or more of these requirements. Nanoparticle drug delivery is a breakthrough technology and has the ability to overcome these limitations. Our study is a proof of principle to demonstrate that nanoparticles can renew the clinical potential of many of these ‘abandoned’ and ‘forgotten’ drugs.

“We found that the nanoparticle formulation of wortmannin decreased toxicity and increased stability, solubility and effectiveness.  Additionally, nanoparticle wortmannin can improve the efficacy of radiotherapy dramatically and is more effective than the most commonly utilized chemotherapeutics. ” Wang is a member of UNC Lineberger Comprehensive Cancer Center.

Wang explains, “Most research has focused on established drugs. However, there is a large number of these ‘forgotten’ drugs that can be revived and re-evaluated using nanoparticle drug delivery.  These drugs can provide new targets and offer new strategies that previously didn’t exist.”

The team will now focus on further development of the nanoparticle wortmannin as well as look into developing nanoparticle formulation of other abandoned drugs.

Other authors are (UNC) Shrirang Karve, PhD; Michael Werner, PhD; Rohit Sukumar, BS; Natalie Cummings, BS; Jonathan Copp, BS; Edina Wang, BS; Manish Sethi, PhD; Chenxi Li, PhD; and Ronald Chen, MD; and (Harvard) Michael Pacold, MD, PhD.

Funding for the work was provided by a grant from the University Cancer Research Fund.

His abstract has been chosen as one or only five presentations for the meeting’s official Press Program.

NAFKI was created in response to the need for new modes of scientific inquiry that break down the conceptual and institutional barriers to interdisciplinary research that could yield significant benefits to science and society.  NAFKI grants are funded through a generous donation from the W.M. Keck Foundation.

Congratulations to Dr. Wang on this significant accomplishment!