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公开(公告)号:US06664040B2
公开(公告)日:2003-12-16
申请号:US09839329
申请日:2001-04-20
申请人: Michael P. Sherman , Warner C. Greene , Carlos M.C. de Noronha , Ulrich Schubert , Peter Henklein
发明人: Michael P. Sherman , Warner C. Greene , Carlos M.C. de Noronha , Ulrich Schubert , Peter Henklein
IPC分类号: C12Q170
CPC分类号: C07K14/005 , A61K38/162 , A61K41/0038 , A61K47/62 , C12N15/87 , C12N2740/16322
摘要: Provided is a composition comprising a Vpr polypeptide conjugated to a therapeutic molecule. Preferably, the Vpr comprises synthetic Vpr. The therapeutic molecule can comprise any molecule capable of being conjugated to Vpr or a fragment thereof, including a polypeptide, a polynucleotide, and/or a toxin. The invention additionally provides a method for delivering a molecule into a cell. The method comprises contacting the cell with a conjugate comprising a Vpr polypeptide conjugated to the molecule. The invention further provides a method for modulating the expression of a transgene in a cell, a method for killing a target cell population in a subject, a method for increasing the sensitivity of cells to radiation therapy, and a method for inhibiting cell proliferation.