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2004 DEC 1 - (NewsRx.com & NewsRx.net) -- Differential immunization has identified PHB1/PHB2 as blood-borne tumor antigens.
"Early diagnosis of cancer is crucial for successful treatment. Noninvasive assays for detecting tumor-derived antigens in serum and other bodily fluids have the potential to screen healthy individuals for hitherto undetected cancers. Very few such assays have been successfully developed, in part because identifying potential target antigens remains a challenge. To identify new blood-borne tumor antigens for the purpose of establishing such assays, we have developed a novel technique called differential immunization," scientists in Germany report.
"Using this method, we have identified PHB1 and PHB2, proteins thought to function as mitochondrial chaperones and transcriptional regulators, as antigens released from colorectal tumors in vivo, said Jorg Mengwasser and collaborators at the Forschungszentrum Karlsruhe and Humboldt-University. "Serum from colorectal patients contains significantly higher levels of these antigens ...
Source: HighBeam Research, PHB1/PHB2 identified as blood-borne tumor antigens.