Báo cáo khoa học: Onconase cytotoxicity relies on the distribution of its positive charge

Onconase  (ONC) is a member of the ribonuclease A superfamily that is toxic to cancer cells in vitro andin vivo. ONC is now in Phase IIIb clinical trials for the treatment of malignant mesothelioma. Internalization of ONC to the cytosol of cancer cells is essential for its cytotoxic activity, despite the apparent absence of a cell-surface receptor protein.