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  • Title: Effects of Kupffer cell-depletion on Concanavalin A-induced hepatitis.
    Author: Hatano M, Sasaki S, Ohata S, Shiratsuchi Y, Yamazaki T, Nagata K, Kobayashi Y.
    Journal: Cell Immunol; 2008 Jan; 251(1):25-30. PubMed ID: 18374909.
    Abstract:
    TNF-alpha, IFN-gamma, IL-4, and MIP-2 are known to be involved in Con A-induced hepatitis. Although Kupffer cells are reportedly involved in TNF-alpha production, it is largely unknown whether or not Kupffer cells also play a role in the production of other cytokines, such as IFN-gamma, IL-4, and MIP-2. In this study we examined the liver injury and the levels of plasma cytokines, including above four cytokines, KC, and IL-10 in Kupffer cell-depleted mice obtained through administration of liposome-encapsulated dichloromethylene bisphosphonate. The liver injury was significantly suppressed in Kupffer cell-depleted mice, as assessed as to the plasma ALT level and histochemistry. The cytokine levels were also significantly suppressed in such mice except for those of IFN-gamma, which was slightly suppressed at 12h, and IL-10, which was not significantly suppressed at any time. Apoptosis was also significantly suppressed in such mice, as found immunohistochemically with anti-ssDNA Ab. Taken together, these results suggest that Kupffer cells are involved in the production of MIP-2, KC, IL-4, and TNF-alpha in Con A-induced hepatitis, thereby contributing to the liver injury either directly or indirectly.
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