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Nanoparticle-delivered 'suicide' genes slowed ovarian tumor growth

PHILADELPHIA -- Nanoparticle delivery of diphtheria toxin-encoding DNA selectively expressed in ovarian cancer cells reduced the burden of ovarian tumors in mice, and researchers expect this therapy could be tested in humans within 18 to 24 months, according to a report in Cancer Research, a journal of the American Association for Cancer Research.

Diabetes gene raises odds of lower birth weight

Pediatric researchers have found that a gene previously shown to be involved in the development of type 2 diabetes also predisposes children to having a lower birth weight. The finding sheds light on a possible genetic influence on how prenatal events may set the stage for developing diabetes in later childhood or adulthood.

Mathematical modeling predicts response to Herceptin

PHILADELPHIA -- Cancer researchers are turning to mathematical models to help answer important clinical questions, and a new paper in Cancer Research, a journal of the American Association for Cancer Research, illustrates how the technique may answer questions about Herceptin resistance.

Fox Chase researchers uncover one force behind the MYC oncogene in many cancers

Philadelphia (July 27, 2009) -- DLX5, a gene crucial for embryonic development, promotes cancer by activating the expression of the known oncogene, MYC, according to researchers from Fox Chase Cancer Center. Since the DLX5 gene is inactive in normal adults, it may be an ideal target for future anti-cancer drugs, they reason.

Smoking increases potential for metastatic pancreatic cancer

(PHILADELPHIA) Smoking has once again been implicated in the development of advanced cancer. Exposure to nicotine by way of cigarette smoking may increase the likelihood that pancreatic ductal adenocarcinoma will become metastatic, according to researchers from the Kimmel Cancer Center at Jefferson. Their study was published in the August edition of the journal Surgery.

Genetic testing may be valuable in treating colorectal cancer

NEW YORK (July 27, 2009) -- For the 29,000 patients in the United States with metastatic colorectal cancer, chemotherapy with irinotecan is a standard treatment that has been shown to improve survival.

Bone from blood: Circulating cells form bone outside the normal skeleton, Penn study finds

PHILADELPHIA ?The accepted dogma has been that bone-forming cells, derived from the body's connective tissue, are the only cells able to form the skeleton.

Eliminating cell receptor prevents infection in animal study

New research from The Children's Hospital of Philadelphia sheds light on the role of cell receptors in acting as gatekeepers for infectious viruses. By using mice genetically engineered to lack a particular receptor in heart and pancreas cells, the study team prevented infection by a common virus that causes potentially serious diseases in humans.

Penn-Wistar team gains insight into HIV vaccine failure

PHILADELPHIA -- (July 20, 2009) -- A team of researchers from The Wistar Institute and the University of Pennsylvania reports new evidence refuting a popular hypothesis about the highly publicized failure in 2007 of the Merck STEP HIV vaccine study that cast doubt on the feasibility of HIV-1 vaccines. The findings were published on-line July 20 in Nature Medicine.

New map of genomic variations will enable disease research

Genetics researchers have unveiled a powerful new resource for scientists and health providers studying human illnesses--a reference standard of deletions and duplications of DNA found in the human genome.

Circulating blood cells are important predictors of cancer spread in children

PHILADELPHIA -- Endothelial progenitor cells may play a role in the start and progression of metastatic disease in children with cancer, according to study results published in Clinical Cancer Research, a journal of the American Association for Cancer Research.

DACH1 a key protein for tumor suppression in ER+ breast cancer

(PHILADELPHIA) Researchers from the Kimmel Cancer Center at Jefferson have identified a protein relationship that may be an ideal treatment target for ER+ breast cancer. The study was reported in the July 15 issue of Cancer Research.

2 reproductive factors are important predictors of death from ovarian cancer

PHILADELPHIA -- Researchers from the Centers for Disease Control and Prevention (CDC) found that survival among women with ovarian cancer is influenced by age of menarche and total number of lifetime ovulatory cycles.

New role discovered for molecule important in development of the pancreas

PHILADELPHIA -- For years researchers have been searching for a way to treat diabetics by reactivating their insulin-producing beta cells, to no avail. Now, they may be one step closer.



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