alexa Obese Patient-Derived Sera Have Proinflammatory Effect
ISSN: 2155-6156

Journal of Diabetes & Metabolism
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Research Article

Obese Patient-Derived Sera Have Proinflammatory Effect

Lan Yao1, Kuan Yan1, Yang Xiao1, Aimin Xu2, Zhiguang Zhou1 and Shiping Liu1*

1Diabetes Center, Institute of Metabolism and Endocrinology, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China

2Medical Department and Pharmacology Department, University of Hong Kong Li Ka Shing Faculty, Hong Kong 999077, China

*Corresponding Author:
Shiping Liu
Diabetes Center, Institute of Metabolism and Endocrinology
Second Xiangya Hospital, Central South University
Changsha, Hunan 410011, China
Tel: +86-731-85295845
E-mail: [email protected]

Received date: June 27, 2015; Accepted date: September 10, 2015; Published date: September 14, 2015

Citation: Yao L, Yan K, Xiao Y, Xu A, Zhou Z, et al. (2015) Obese Patient-Derived Sera Have Proinflammatory Effect. J Diabetes Metab 6:604. doi:10.4172/2155-6156.1000604

Copyright: © 2015 Yao L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Aim: Chronic inflammation of

adipose tissues

plays a key role in obesity-induced metabolic disorders. We examined effects of sera from obese patients with or without different compositions of metabolic disorders on the activation of Toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) signaling pathway in the human monocytic leukemia cell line (THP-1), which have never been reported. Methods: With or without pretreatment of TLR4 monoclonal antibody, THP-1 cells were incubated for 48h by sera from 45 obese patients with or without metabolic disorders and 15 controls. The level of TLR4 in THP-1 cells, intracellular level of phosphorylated NF-κB p65, IL-1β and TNF-α levels in cell culture supernatants were measured. Results: Compared with controls, the expression level of TLR4, NF-κB p65, IL-1β and TNF-α were significantly increased (p <0.05) after cells were incubated with sera from obese patients. The more compositions of

metabolic disorders

, the higher increase of these factors. Pretreatment with TLR4 monoclonal antibody suppressed the degree of increase in these factors (p <0.05). Conclusions: Sera from

obese patient

s could induce the activation of TLR4/NF-κB signaling pathway in THP-1 monocytes by different degrees. The TLR4/NF-κB signaling pathway plays an important role in the proinflammatory effect of obese patient-derived sera.


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