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Article

Interleukin-17A Differentially Induces Inflammatory and Metabolic Gene Expression in the Adipose Tissues of Lean and Obese Mice

1
Department of Structural and Cellular Biology, Tulane University, New Orleans, LA 70112, USA
2
Department of Histology and Embryology, School of Basic Medicine of North China University of Science and Technology, Tangshan 063000, China
3
Department of Thoracic Surgery, Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
4
Department of Obstetrics and Gynecology, Shijiazhuang Maternal and Child Health Care Hospital, Shijiazhuang 050000, China
5
Department of Orthopaedic Surgery, Tulane University, New Orleans, LA 70112, USA
6
Tulane Cancer Center and Louisiana Cancer Research Consortium, Tulane University, New Orleans, LA 70112, USA
7
Tulane Center for Stem Cell Research and Regenerative Medicine, Tulane University, New Orleans, LA 70112, USA
8
Tulane Center for Aging, Tulane University, New Orleans, LA 70112, USA
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2016, 17(4), 522; https://doi.org/10.3390/ijms17040522
Submission received: 11 February 2016 / Revised: 17 March 2016 / Accepted: 30 March 2016 / Published: 7 April 2016
(This article belongs to the Special Issue Molecular Research on Obesity and Diabetes)

Abstract

The functions of interleukin-17A (IL-17A) in adipose tissues and adipocytes have not been well understood. In the present study, male mice were fed with a regular diet (n = 6, lean mice) or a high-fat diet (n = 6, obese mice) for 30 weeks. Subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) were analyzed for IL-17A levels. SAT and VAT were treated with IL-17A and analyzed for inflammatory and metabolic gene expression. Mouse 3T3-L1 pre-adipocytes were differentiated into adipocytes, followed with IL-17A treatment and analysis for inflammatory and metabolic gene expression. We found that IL-17A levels were higher in obese SAT than lean SAT; the basal expression of inflammatory and metabolic genes was different between SAT and VAT and between lean and obese adipose tissues. IL-17A differentially induced expression of inflammatory and metabolic genes, such as tumor necrosis factor α, Il-6, Il-1β, leptin, and glucose transporter 4, in adipose tissues of lean and obese mice. IL-17A also differentially induced expression of inflammatory and metabolic genes in pre-adipocytes and adipocytes, and IL-17A selectively activated signaling pathways in adipose tissues and adipocytes. These findings suggest that IL-17A differentially induces inflammatory and metabolic gene expression in the adipose tissues of lean and obese mice.
Keywords: interleukin-17A; inflammation; metabolism; obesity; gene expression interleukin-17A; inflammation; metabolism; obesity; gene expression
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MDPI and ACS Style

Qu, Y.; Zhang, Q.; Ma, S.; Liu, S.; Chen, Z.; Mo, Z.; You, Z. Interleukin-17A Differentially Induces Inflammatory and Metabolic Gene Expression in the Adipose Tissues of Lean and Obese Mice. Int. J. Mol. Sci. 2016, 17, 522. https://doi.org/10.3390/ijms17040522

AMA Style

Qu Y, Zhang Q, Ma S, Liu S, Chen Z, Mo Z, You Z. Interleukin-17A Differentially Induces Inflammatory and Metabolic Gene Expression in the Adipose Tissues of Lean and Obese Mice. International Journal of Molecular Sciences. 2016; 17(4):522. https://doi.org/10.3390/ijms17040522

Chicago/Turabian Style

Qu, Yine, Qiuyang Zhang, Siqi Ma, Sen Liu, Zhiquan Chen, Zhongfu Mo, and Zongbing You. 2016. "Interleukin-17A Differentially Induces Inflammatory and Metabolic Gene Expression in the Adipose Tissues of Lean and Obese Mice" International Journal of Molecular Sciences 17, no. 4: 522. https://doi.org/10.3390/ijms17040522

APA Style

Qu, Y., Zhang, Q., Ma, S., Liu, S., Chen, Z., Mo, Z., & You, Z. (2016). Interleukin-17A Differentially Induces Inflammatory and Metabolic Gene Expression in the Adipose Tissues of Lean and Obese Mice. International Journal of Molecular Sciences, 17(4), 522. https://doi.org/10.3390/ijms17040522

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