Title : T cell PPARγ is required for the anti-inflammatory efficacy of abscisic acid against experimental IBD.

Pub. Date : 2011 Sep

PMID : 21109419






7 Functional Relationships(s)
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1 T cell PPARgamma is required for the anti-inflammatory efficacy of abscisic acid against experimental IBD. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus
2 The objective of this study was to investigate whether ABA"s anti-inflammatory efficacy in the gut is dependent on peroxisome proliferator-activated receptor gamma (PPARgamma) in T cells. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus
3 The objective of this study was to investigate whether ABA"s anti-inflammatory efficacy in the gut is dependent on peroxisome proliferator-activated receptor gamma (PPARgamma) in T cells. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus
4 ABA"s beneficial effects on disease activity were completely abrogated in T cell-specific PPARgamma null mice. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus
5 Additionally, ABA improved colon histopathology, reduced blood F4/80(+)CD11b(+) monocytes, increased the percentage of CD4(+) T cells expressing the inhibitory molecule cytotoxic T lymphocyte antigen 4 in blood and enhanced the number of T(reg) cells in the mesenteric lymph nodes and colons of PPARgamma-expressing but not T cell-specific PPARgamma null mice. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus
6 Additionally, ABA improved colon histopathology, reduced blood F4/80(+)CD11b(+) monocytes, increased the percentage of CD4(+) T cells expressing the inhibitory molecule cytotoxic T lymphocyte antigen 4 in blood and enhanced the number of T(reg) cells in the mesenteric lymph nodes and colons of PPARgamma-expressing but not T cell-specific PPARgamma null mice. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus
7 We conclude that dietary ABA ameliorates experimental inflammatory bowel disease by enhancing T(reg) cell accumulation in the colonic lamina propria through a PPARgamma-dependent mechanism. Abscisic Acid peroxisome proliferator activated receptor gamma Mus musculus