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murine colonic adenocarcinoma cell line CT26.WT / 实用医学杂志
The Journal of Practical Medicine ; (24): 704-707, 2015.
Artigo em Chinês | WPRIM | ID: wpr-460615
ABSTRACT
Objective To explore the antigen presentation of CT26.WT via intra-peritoneal injection. Methods The intra-peritoneal injection model was made via injecting cell suspensions in mice. The spleen was isolated from BALB/c mice toco-culture with CT26.WT to detect tumor-killed ability. Phenotype identification methods and CCK8 massy were used to measure the ability of antigen presentation and stimulate T lymphocyte proliferation. IHC was used to detect the expression of B7H4 in normal and tumor tissues. Results Along with the extension of intra-peritoneal injection, the surviving number of cells was increased, contrary to the apoptosis. DC cells failed in maturation and impaired in stimulating T lymphocyte proliferation. B7H4 was higher in tumor tissues. Conclusions With the extension of intra-peritoneal injection, the mature DC cells were scared in number, resulting in the impairement of antigen-presentation. Moreover, the higher B7H4 expression in tumor tissues led to the lack of second signals which may stimulate T cells. Consequently, the ability of T cells in killing tumor cells was decreased so that they escape immunosurveillance.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: The Journal of Practical Medicine Ano de publicação: 2015 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: The Journal of Practical Medicine Ano de publicação: 2015 Tipo de documento: Artigo