Functional genomics of PPAR-γ in human immunomodulatory cells
2006
Kaul, Deepak | Anand, Paras K | Khanna, Amit
Keeping in view the fact that peroxisome-proliferators activated receptors-PPARs (α,γ) play a crucial role in atherogenic inflammation, the present study was addressed to explore as to how selective and specific PPAR-γ gene silencing within human mononuclear cells affects genes involved in lipid metabolism and innate immune process. Such a study revealed that with respect to control cells, the PPAR-γ knock-out cells exhibited significant reduction in the expression of genes coding for PPAR- α, CD-36, LDL-R as well as significant increase in the expression of genes coding for IL-4, IL-8, IFN-γ, CX3CR1, hTERT. However, the expression of genes coding for LXR-α and Receptor-C k could not be detected in PPAR-γ knock-out cells. Based on these results, we propose that PPAR-γ gene has the inherent capacity to influence the lipid mediated inflammation process in atherosclerotic lesions.
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