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FEBS Lett. 1999 Jun 25;453(3):283-7.

High molecular weight hyaluronic acid inhibits advanced glycation endproduct-induced NF-kappaB activation and cytokine expression.

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Physiological Chemistry I, Biocenter, Würzburg, Germany.


Advanced glycation endproducts (AGEs), which accumulate on long-lived proteins and protein deposits (amyloids), induce the expression of proinflammatory cytokines through NF-kappaB-dependent pathways. Hyaluronic acid with a molecular weight above 1.2 MDa (HMW-HA) inhibits the AGE-induced activation of the transcription factor NF-kappaB and the NF-kappaB-regulated cytokines interleukin-1alpha, interleukin-6 and tumor necrosis factor-alpha. Since the molecular weight of hyaluronic acid in humans decreases with age and under conditions of oxidative stress, it is likely that the protective effect of HMW-HA against AGE-induced cellular activation is lost at sites of chronic inflammation and in older age.

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