A team of researchers at Leeds University and the Mayo Clinic have published a new study in Nature Medicine, which suggests that they're close to developing a vaccine to shrink tumors, reports Reuters. The researchers' technique uses a cDNA library from organs in which tumors can form and spread, and early tests on mice with prostate cancer show that the vaccine could eventually be used in human cancer patients, Reuters says, though the team adds that human trials are years away. Several companies are trying to develop therapeutic vaccines — which are meant to treat a disease after it has formed, not prevent it as a traditional vaccine does — for different kinds of cancer. Where this vaccine differs is that because it contains a library of DNA with multiple genes, it could create many different antigens and fight several kinds of cancer, Reuters says.
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