The biomodulative and hematopoietic potentialities of IL-2 and IL-3 activatedbone marrow(ABM)cells from patients with lung adenocarcinoma were studied in vitro.Human bone marrow(BM)cells could be activated by IL-2 in ...The biomodulative and hematopoietic potentialities of IL-2 and IL-3 activatedbone marrow(ABM)cells from patients with lung adenocarcinoma were studied in vitro.Human bone marrow(BM)cells could be activated by IL-2 in culture for 7d.TheseIL-2 ABM cells had higher cytolytic activities against cells of H 7402 cell line and freshautologous adenocarcinoma cells and maintained the cytotoxicities longer than IL-2 acti-vated peripheral blood lymphocytes(APBLs),a point of possible importance in adoptiveimmunotherapy for cancer patients.The IL-2 ABM cells also had similar number ofBFU-E and CFU-GM to that had fresh BM cells if 1L-3 was added 48h alter IL-2 inculture.The IL-2 and IL-3 ABM cells might be used to eliminate tumor cells and tosupply reconstitutive elements of BM for autologous bone marrow transplantation.展开更多
Cellular immune response is a major barrier to xenotransplantation. Human tumor necrosis factor-α (hTNF-α) possesses cross-species activity and directly amplifies the immune rejection via the upregulation of adhesio...Cellular immune response is a major barrier to xenotransplantation. Human tumor necrosis factor-α (hTNF-α) possesses cross-species activity and directly amplifies the immune rejection via the upregulation of adhesion molecules on porcine endothelium. We investigated the role of protein tyrosine phosphorylation in the induction of expression of E-selectin and vascular cell adhesion molecule-1 (VCAM-1), and the augmentation of adhesion of human peripheral blood monocytes (PBMo) and natural killer cells (PBNK), after rhTNF-α-stimulation of porcine aortic endo-thelial cells (PAEC) in vitro. rhTNF-α-increased adhesiveness of PAEC for both PBMo and PBNK was dose-dependently reduced by pretreatment of PAEC with the selective protein tyrosine kinase (PTK) inhibitor genistein. The inhibitory effect occurred at the early time of PAEC activation triggered by rhTNF-α, and was completely reversible. PTK activity assay indicated that genistein also suppressed rhTNF-α stimulated activation of protein tyrosine展开更多
文摘The biomodulative and hematopoietic potentialities of IL-2 and IL-3 activatedbone marrow(ABM)cells from patients with lung adenocarcinoma were studied in vitro.Human bone marrow(BM)cells could be activated by IL-2 in culture for 7d.TheseIL-2 ABM cells had higher cytolytic activities against cells of H 7402 cell line and freshautologous adenocarcinoma cells and maintained the cytotoxicities longer than IL-2 acti-vated peripheral blood lymphocytes(APBLs),a point of possible importance in adoptiveimmunotherapy for cancer patients.The IL-2 ABM cells also had similar number ofBFU-E and CFU-GM to that had fresh BM cells if 1L-3 was added 48h alter IL-2 inculture.The IL-2 and IL-3 ABM cells might be used to eliminate tumor cells and tosupply reconstitutive elements of BM for autologous bone marrow transplantation.
基金This work was supported by the National Natural Science Foundation of China (Grant No. 39770700).
文摘Cellular immune response is a major barrier to xenotransplantation. Human tumor necrosis factor-α (hTNF-α) possesses cross-species activity and directly amplifies the immune rejection via the upregulation of adhesion molecules on porcine endothelium. We investigated the role of protein tyrosine phosphorylation in the induction of expression of E-selectin and vascular cell adhesion molecule-1 (VCAM-1), and the augmentation of adhesion of human peripheral blood monocytes (PBMo) and natural killer cells (PBNK), after rhTNF-α-stimulation of porcine aortic endo-thelial cells (PAEC) in vitro. rhTNF-α-increased adhesiveness of PAEC for both PBMo and PBNK was dose-dependently reduced by pretreatment of PAEC with the selective protein tyrosine kinase (PTK) inhibitor genistein. The inhibitory effect occurred at the early time of PAEC activation triggered by rhTNF-α, and was completely reversible. PTK activity assay indicated that genistein also suppressed rhTNF-α stimulated activation of protein tyrosine