Secretory lysosome targeting and induced secretion of human soluble TNF-alpha receptor in murine hematopoietic cells in vivo as a principle for immunoregulation in inflammation and malignancy.
OBJECTIVE: Systemic administration of immunotherapeutics often gives rise to severe side effects. A local deposition, using secretory lysosomes of hematopoietic cells as vehicles for delivery, can overcome this problem. In the present study, the validity of this concept was investigated using retroviral transduction of the human soluble tumor necrosis factor-alpha receptor 1 (hsTNFR1) into murine