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Journal of Sun Yat-sen University(Medical Sciences) ; (6): 231-237, 2010.
Artículo en Chino | WPRIM | ID: wpr-402708

RESUMEN

[Objective]This study was designed to explore the dynamic changes of cytokines in the local tissues of radiationinduced oral mucositis in a rat model.[methods]The rat oral mucosal tissues were obtained at 5 d,8 d,and 14 d after irradiation.which were received single X-ray irradiation of 30 Gy locally.RayBio~((R)) Rat Cytokine Array was applied to analyze the 19 cytokines.The mRNA levels of the 8 inflammatory-related cytokines were analyzed by real time-PCR.ELISA was employed to detect IL-1α,IFN-γ,and TIMP-1 protein levels.[Results]Cytokine array detection showed that cytokines such as Frac,IL-4,IL-6,IL-10,and TNF-α were down-regulated after irradiation.IL-1β,LIX,VEGF,and β-NGF were no obviously changed at the same time corse.The elevate range less than 2 fold of the CINC-2,GM-CGF,Leptin,MCP-1,and MIP-3α after irradiation were detected.The increasing range more than 2 fold of CINC-3,INF-γ,IL-1α,and TIMP-1 post irradiation were detected.The mRNA levels of anti-apoptosis,such as Bcl-2,and TNF-α,IL-6,VEGF,and IL-1β were low down,while the levels of promoting apoptosis cytokine such as Bax,and neutrophil recruitment associated cytokines,CINC,and TLR-9 were up-regulated after irradiation.The ELISA results of IL-1α,IFN-γ,and TIMP-1 were identical with the results of the two previom analyses.[Conclusion]The results of the three methods in the study should present evidences to prove each other.Some cytokines in the local lesion of oral mucositis during the initiate,development,and progression stages were blocked,while others were positively up-regulated to involving the control of the pathogensis of oral mucositis.

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