Title:Toll-like Receptor as a Molecular Link between Metabolic Syndrome and Inflammation: A Review
Volume: 20
Issue: 12
Author(s): Sok Kuan Wong, Kok-Yong Chin and Soelaiman Ima-Nirwana*
Affiliation:
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Cheras, Kuala Lumpur,Malaysia
Keywords:
Cytokine, free fatty acids, heat shock protein, interleukin, interferon, tumour necrosis factor.
Abstract: Metabolic Syndrome (MetS) involves a cluster of five conditions, i.e. obesity, hyperglycaemia,
hypertension, hypertriglyceridemia and low High-Density Lipoprotein (HDL) cholesterol. All
components of MetS share an underlying chronic inflammatory aetiology, manifested by increased
levels of pro-inflammatory cytokines. The pathogenic role of inflammation in the development of
MetS suggested that toll-like receptor (TLR) activation may trigger MetS. This review summarises the
supporting evidence on the interactions between MetS and TLR activation, bridged by the elevation of
TLR ligands during MetS. The regulatory circuits mediated by TLR activation, which modulates signal
propagation, leading to the state of chronic inflammation, are also discussed. Taken together, TLR
activation could be the molecular basis in the development of MetS-induced inflammation.