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1.
Article in Chinese | WPRIM | ID: wpr-581640

ABSTRACT

Using a syngeneic transplantable leukemia model of 615 inbred mice, named L615, we (1) compared the adoptive immunoprophylactic(AIP) effects of spleen cells from various normal dornor mice with different genetic background and from different immune-deficient mice;(2) studied the adoptive immunotherapeutic (AIT) and adoptive chemo-immunotherapeutic(ACIT) effects of immune spleen cells from those survival mice in the AIP groups;(3) analysed the antitumor activities of various murine spleen cells either nonspecifically activated in vitro or specifically induced in vivo and resensitized in vitro by MMC-treated L615 tumor cell vaccine (TCV).Our results might provide some new experimental evidences for clinical application of cancer ACI.

2.
Article in Chinese | WPRIM | ID: wpr-581721

ABSTRACT

The result showed that CD3AK induced and expanded in vitro could kill MHC I class - negative K562 (NK - sensitive) and Daudi (NK - resistant) tumor cells in a MHC - nonrestricted manner. Induction of necrosis and / or apoptosis of target cells were responsible for the tumorlytic effect mediated by CD3AK.

3.
Article in Chinese | WPRIM | ID: wpr-581833

ABSTRACT

A new type of killer cells, named PHA-?CD3LAK, was induced by means of costimulating the peripheral blood mononuclear cells (PBMC) with anti-CD3McAb (?CD3) and rIL-2 after PHA-priming for 48 hours. Some biological characteristics of PHA-?CD3LAK, PHA-LAK and CD3AK were compared. The results showed that PHA-?CD3LAK exhibited some advantages over CD3AK and PHA-LAK in proliferation, cytotoxicity, the expression level of mIL-2R, as well as the utilizing of IL-2, suggesting the synergistic enhancing role of PHA, ?CD3 and IL-2. All three groups of effector cells were heterogeneous populations, predominantly CD3 + CD8 + T cells. The CD8 ~(+) cell percentage of PHA-?CD3LAK was higher than that of the other two groups. The application of PHA-?CD3LAK might open a new prospect to clinical therapeutic approach.

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