A proteomic approach for identification of secreted proteins during the differentiation of 3T3-L1 preadipocytes to adipocytes.

Irina Kratchmarova, Dario E. Kalume, Blagoy Blagoev, Philipp E. Scherer, Alexandre V. Podtelejnikov, Henrik Molina, Perry E. Bickel, Jens S. Andersen, Minerva M. Fernandez, Jacob Bunkenborg, Peter Roepstorff, Karsten Kristiansen, Harvey F. Lodish, Matthias Mann, Akhilesh Pandey

Research output: Contribution to journalArticle

222 Citations (Scopus)

Abstract

We have undertaken a systematic proteomic approach to purify and identify secreted factors that are differentially expressed in preadipocytes versus adipocytes. Using one-dimensional gel electrophoresis combined with nanoelectrospray tandem mass spectrometry, proteins that were specifically secreted by 3T3-L1 preadipocytes or adipocytes were identified. In addition to a number of previously reported molecules that are up- or down-regulated during this differentiation process (adipsin, adipocyte complement-related protein 30 kDa, complement C3, and fibronectin), we identified four secreted molecules that have not been shown previously to be expressed differentially during the process of adipogenesis. Pigment epithelium-derived factor, a soluble molecule with potent antiangiogenic properties, was found to be highly secreted by preadipocytes but not adipocytes. Conversely, we found hippocampal cholinergic neurostimulating peptide, neutrophil gelatinase-associated lipocalin, and haptoglobin to be expressed highly by mature adipocytes. We also used liquid chromatography-based separation followed by automated tandem mass spectrometry to identify proteins secreted by mature adipocytes. Several additional secreted proteins including resistin, secreted acidic cysteine-rich glycoprotein/osteonectin, stromal cell-derived factor-1, cystatin C, gelsolin, and matrix metalloprotease-2 were identified by this method. To our knowledge, this is the first study to identify several novel secreted proteins by adipocytes by a proteomic approach using mass spectrometry.

Original languageEnglish (US)
Pages (from-to)213-222
Number of pages10
JournalMolecular & cellular proteomics : MCP
Volume1
Issue number3
StatePublished - Mar 2002

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Adipocytes
Proteomics
Mass spectrometry
Molecules
Proteins
Osteonectin
Gelsolin
Tandem Mass Spectrometry
Complement Factor D
Resistin
Lipocalins
Chemokine CXCL12
Cystatin C
Gelatinases
Complement C3
Haptoglobins
Adiponectin
Liquid chromatography
Metalloproteases
Electrophoresis

ASJC Scopus subject areas

  • Biochemistry

Cite this

Kratchmarova, I., Kalume, D. E., Blagoev, B., Scherer, P. E., Podtelejnikov, A. V., Molina, H., ... Pandey, A. (2002). A proteomic approach for identification of secreted proteins during the differentiation of 3T3-L1 preadipocytes to adipocytes. Molecular & cellular proteomics : MCP, 1(3), 213-222.

A proteomic approach for identification of secreted proteins during the differentiation of 3T3-L1 preadipocytes to adipocytes. / Kratchmarova, Irina; Kalume, Dario E.; Blagoev, Blagoy; Scherer, Philipp E.; Podtelejnikov, Alexandre V.; Molina, Henrik; Bickel, Perry E.; Andersen, Jens S.; Fernandez, Minerva M.; Bunkenborg, Jacob; Roepstorff, Peter; Kristiansen, Karsten; Lodish, Harvey F.; Mann, Matthias; Pandey, Akhilesh.

In: Molecular & cellular proteomics : MCP, Vol. 1, No. 3, 03.2002, p. 213-222.

Research output: Contribution to journalArticle

Kratchmarova, I, Kalume, DE, Blagoev, B, Scherer, PE, Podtelejnikov, AV, Molina, H, Bickel, PE, Andersen, JS, Fernandez, MM, Bunkenborg, J, Roepstorff, P, Kristiansen, K, Lodish, HF, Mann, M & Pandey, A 2002, 'A proteomic approach for identification of secreted proteins during the differentiation of 3T3-L1 preadipocytes to adipocytes.', Molecular & cellular proteomics : MCP, vol. 1, no. 3, pp. 213-222.
Kratchmarova, Irina ; Kalume, Dario E. ; Blagoev, Blagoy ; Scherer, Philipp E. ; Podtelejnikov, Alexandre V. ; Molina, Henrik ; Bickel, Perry E. ; Andersen, Jens S. ; Fernandez, Minerva M. ; Bunkenborg, Jacob ; Roepstorff, Peter ; Kristiansen, Karsten ; Lodish, Harvey F. ; Mann, Matthias ; Pandey, Akhilesh. / A proteomic approach for identification of secreted proteins during the differentiation of 3T3-L1 preadipocytes to adipocytes. In: Molecular & cellular proteomics : MCP. 2002 ; Vol. 1, No. 3. pp. 213-222.
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