Mouse mammary tumor-like virus (MMTV) is present in human breast tissue before development of virally associated breast cancer

Abstract excerpt

There is substantial evidence that a virus homologous to mouse mammary tumor virus (MMTV) may have a role in human breast cancer. The present study indicates that those who developed breast cancer associated with an MMTV-like virus had this virus in their non-cancerous breast tissues years before the cancer developed. Polymerase chain reaction (PCR) techniques and sequencing were used to identify MMTV-like...

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