Diabodies Target Tumors with Mutated RAS, p53 - Cancer Currents Blog National Cancer Institute sent this bulletin at 04/02/2021 10:33 AM EDT Having trouble viewing this email? View it as a Web page. You are subscribed to Cancer Currents: An NCI Cancer Research Blog from the National Cancer Institute. Recent posts are listed below. Researchers Create Modified Antibodies to Target RAS and p53 in Cancer 04/02/2021 Researchers have developed synthetic antibodies, called diabodies, that block the activity of two of the most notorious cancer-related proteins, RAS and p53. In experiments in mice, the synthetic antibodies shrank tumors with these mutated proteins.