Abstract: Extended life hematopoietic cell lines include stromal cell lines useful for the in vitro maintenance of undifferentiated pluripotent hematopoietic stem cells. Undifferentiated and differentiated immortalized stem cells are suitable for bone marrow transplantation, gene therapy and cell therapy applications, and as an in vitro model system for drug discovery and toxicological testing.
Abstract: A methodology that allows for highly efficient transfer and stable integration of DNA into both established eukaryotic cell lines and primary cells, including non-dividing cells such as human peripheral blood monocytes and macrophages, entails the use of a synthetic polypeptide comprised of a peptide domain which corresponds to a nuclear localization signal sequence and a DNA binding domain which is rich in basic amino acids, separated by a hinge region of neutral amino acid which prevents stearic interference between the two domains.
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