Your dentist could soon be your new doctor. Don't cancel your annual physical just yet, but promising research coming out of UCLA's School of Dentistry suggests that salivary diagnostics - or "salivaomics" - could become a potent resource for early detection of a broad range of potential health problems like autoimmune diseases, diabetes and even life-threatening conditions like cancer.

A simple blood test that offers early detection of cancer in the human body has long eluded medical researchers, but a team at UCLA is getting closer. By blending an ultra-fast camera and a powerful optical microscope with software that can process the data they produce at extremely high speeds, the team hopes it can spot circulating tumor cells (CTCs) that have broken away from cancerous tumors in blood samples, potentially making early cancer detection as simple as taking a blood draw.

The giant keyhole limpet's hemolymph carries a protein that is the essential component of a new cancer vaccine. Keyhole limpet hemocyanin (KLH) carries oxygen in limpet blood. It is an unusually large protein - near virus size - and contains many epitopes, which trigger our body to produce antibodies. When doctors inject KLH into the human bloodstream, it provokes a powerful immune response. If markers for a certain cancer are attached to KLH, the immune system can be stimulated to attack them. Unlike some synthetic alternatives, KLH is nontoxic. Researchers use the protein in cancer vaccines to "break tolerance," says Frank Oakes, the CEO of Stellar Biotechnologies, which grows limpets in a business park for aquaculture next to the Pacific Ocean in Port Hueneme, California. "Your body tolerates the cancer cell because the body believes it is a part of you," he says.