It's well known that certain viruses can induce cancer. Human papillomavirus, for example, can cause cervical cancer and Epstein-Barr virus can cause Burkitt's lymphoma. Just how they do this is not entirely clear. However, scientists Dominik Duelli and Yuri Lazebnik at New York's Cold Spring Harbor Laboratory may have a theory on their hands. They observed that human fibroblast cells, when infected with a virus, sometimes fused with one another. During fusion their chromosomes became wildly unstable and subsequently developed chromosomal abnormalities that predisposes to cancer. Compared with non-fused cells, only fused cells produce cancer when they were transplanted into mice. (Full article here via Current Biology)


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