VECTOR PARTICLES RESISTANT TO INACTIVATION BY HUMAN SERUM

摘要

A retroviral vector particle resistant to inactivation by human serum. The vector particles preferably include p15E protein wherein at least a portion of the DNA encoding p15E protein is mutated such that the vector particle is resistant to inactivation by human serum. The vector particles may further include a protein containing a receptor binding region which binds to the receptor of a human target cell, thereby enabling the direct introduction of desired heterologous genes in vivo, whereby the vector particle including the heterologous gene travels directly to a targeted cell or tissue.