Comparison of messenger RNA distribution for 60 proteins in fat cells vs the nonfat cells of human omental adipose tissue

John N. Fain, Ben Buehrer, Suleiman Bahouth, David S. Tichansky, Atul K. Madan

Research output: Contribution to journalArticle

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Abstract

The messenger RNA (mRNA) distribution of 60 proteins was examined in the 3 fractions obtained by collagenase digestion (fat cells and the nonfat cells comprising the tissue remaining after collagenase digestion [matrix] and the stromovascular cells) of omental adipose tissue obtained from morbidly obese women undergoing bariatric surgery. Fat cells were enriched by at least 3-fold as compared with nonfat cells in the mRNAs for retinol binding protein 4, angiotensinogen, adipsin, glutathione peroxidase 3, uncoupling protein 2, peroxisome proliferator-activated receptor γ, cell death-inducing DFFA-like effector A, fat-specific protein 27, 11β-hydroxysteroid dehydrogenase 1, glycerol channel aquaporin 7, NADPH:quinone oxidoreductase 1, cyclic adenosine monophosphate phosphodiesterase 3B, glyceraldehyde-3-phosphate dehydrogenase, insulin receptor, and amyloid A1. Fat cells were also enriched by at least 26-fold in the mRNAs for proteins involved in lipolysis such as hormone-sensitive lipase, lipoprotein lipase, adipose tissue triglyceride lipase, and FAT/CD36. The relative distribution of mRNAs in cultured preadipocytes was also compared with that of in vitro differentiated adipocytes derived from human omental adipose tissue. Cultured preadipocytes had far lower levels of the mRNAs for inflammatory proteins than the nonfat cells of omental adipose tissue. The nonfat cells were enriched by at least 5-fold in the mRNAs for proteins involved in the inflammatory response such as tumor necrosis factor α, interleukin lβ, cyclooxygenase 2, interleukin 24, interleukin 6, and monocyte chemoattractant protein 1 plus the mRNAs for osteopontin, vaspin, endothelin, angiotensin II receptor 1, butyrylcholinesterase, lipocalin 2, and plasminogen activator inhibitor 1. The cells in the adipose tissue matrix were enriched at least 3-fold as compared with the isolated stromovascular cells in the mRNAs for proteins related to the inflammatory response, as well as osteopontin and endothelial nitric oxide synthase. We conclude that the mRNAs for inflammatory proteins are primarily present in the nonfat cells of human omental adipose tissue.

Original languageEnglish (US)
Pages (from-to)1005-1015
Number of pages11
JournalMetabolism: Clinical and Experimental
Volume57
Issue number7
DOIs
StatePublished - Jul 1 2008

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Adipocytes
Adipose Tissue
Messenger RNA
Proteins
Osteopontin
Collagenases
Digestion
Type 3 Cyclic Nucleotide Phosphodiesterases
11-beta-Hydroxysteroid Dehydrogenases
Complement Factor D
Sterol Esterase
Butyrylcholinesterase
Retinol-Binding Proteins
Angiotensinogen
Aquaporins
Peroxisome Proliferator-Activated Receptors
Glyceraldehyde-3-Phosphate Dehydrogenases
Angiotensin Receptors
Bariatric Surgery
Lipoprotein Lipase

All Science Journal Classification (ASJC) codes

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology

Cite this

Comparison of messenger RNA distribution for 60 proteins in fat cells vs the nonfat cells of human omental adipose tissue. / Fain, John N.; Buehrer, Ben; Bahouth, Suleiman; Tichansky, David S.; Madan, Atul K.

In: Metabolism: Clinical and Experimental, Vol. 57, No. 7, 01.07.2008, p. 1005-1015.

Research output: Contribution to journalArticle

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