Author(s)

Dotun Ogunyemi, Jun Xu, Arnold M. Mahesan, Steve Rad, Eric Kim, Jacqueline Yano, Carolyn Alexander, Jerome I. Rotter, Y.-D. Ida Chen

Department of Endocrinology, Cedars-Sinai Medical Center, Los Angeles, USA.
Department of Medical Education, David Geffen School of Medicine at UCLA, Los Angeles, USA.
Department of Medical Genetics, Cedars-Sinai Medical Center, Los Angeles, USA.
Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, Los Angeles, USA.

Objective: To profile the differential gene expression of the KEGG Adipocytokine Signaling pathway in omental compared to subcutaneous tissue in normal pregnancy. Study Design: Subjects included 14 nonobese, normal glucose tolerant, healthy pregnant women. Matched omental and subcutaneous tissue were obtained at elective cesarean delivery. Gene expression was evaluated using microarray and validated by RT-PCR. Differential gene expression was defined as ≥1.5 fold increase at p < 0.05. Results: Six genes were significantly downregulated with two upregulated genes in omental tissue. Downregulation of Adiponectin and Insulin Receptor substrate, key genes mediating insulin sensitivity, were observed with borderline upregulation of GLUT-1. There were downregulations of CD36 and acyl-CoA Synthetase Long-chain Family Member 1which are genes involved in fatty acid uptake and activation. There was a novel expression of Carnitine palmitoyltransferase 1C. Conclusion: Differential gene expression of Adipocytokine Signaling Pathway in omental relative to subcutaneous adipose tissue in normal pregnancy suggests a pattern of insulin resistance, hyperlipidemia, and inflammation.

Adipose Tissue; Pregnancy; Adipocytokine Pathway; Insulin Resistance

Ogunyemi, D. , Xu, J. , Mahesan, A. , Rad, S. , Kim, E. , Yano, J. , Alexander, C. , Rotter, J. and Chen, Y. (2013) Differentially expressed genes in adipocytokine signaling pathway of adipose tissue in pregnancy. Journal of Diabetes Mellitus, 3, 86-95. doi: 10.4236/jdm.2013.32013.