Breast Cancer Vaccine to Boost Anti-Tumor Immunity

An experimental vaccine against breast cancer safely generated a strong immune response to a key tumor protein, researchers from the University of Washington (UW) School of Medicine in Seattle report in a paper published by the journal JAMA Oncology. The findings suggest the vaccine may be able to treat different types of breast cancer.

Because this was not a randomized clinical trial, the results should be considered preliminary, but the findings are promising enough that the vaccine will now be evaluated in a larger, randomized clinical trial,” said lead author Dr. Mary “Nora” L. Disis, a UW professor of medicine, Division of Medical Oncology, and director of the Cancer Vaccine Institute.

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Smart Tumor-Targeting DNA NanoRobots

Chinese researchers have developed biodegradable tumor-targeting nanoparticles, which provides a promising therapy for tumor treatment, according to the Chinese Academy of Sciences (CAS).

A joint research team with scientists from the CAS developed the tumor-targeting nanoparticles as a combination of tumor-infarction therapy and chemotherapy, said the CAS.

It has long been a challenge for researchers to find a safe and effective therapy for vascular thrombosis. Drugs that induce thrombosis in the tumor vasculature have not resulted in long-term tumor eradication.

The CAS research team developed the nanoparticle, a type of DNA nanorobot that can precisely send the thrombin to the tumor-vessel walls and the tumor stroma, leaving the tumor to “starve to death.”

Study results showed that the co-administration of a cytotoxic payload and a protease to elicit vascular infarction in tumors with biodegradable tumor-targeting nanoparticles represented a promising strategy for improving the therapeutic index of coagulation-based tumor therapy.

The study has been published online by the journal Nature Biomedical Engineering.

Source: http://www.xinhuanet.com/