LC-MS/MS analysis of visceral and subcutaneous adipose tissue proteomes in young goats with focus on innate immunity and inflammation related proteins

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Laura Restelli, Dipartimento di Scienze Veterinarie per la Salute, La Produzione Animale e la Sicurezza Alimentare, Università degli Studi di Milano, Italy
  • Marius Cosmin Codrea, Quantitative Biology Center (QBiC), Eberhard Karls University Tuebingen, Denmark
  • Giovanni Savoini, Dipartimento di Scienze Veterinarie per la Salute, La Produzione Animale e la Sicurezza Alimentare, Università degli Studi di Milano, Italy
  • Fabrizio Ceciliani, Dipartimento di Scienze Veterinarie e Sanità Pubblica, Università degli Studi di Milano, Italy
  • Emoke Bendixen

The endocrine role of adipose tissue and its involvement in several physiological and pathological processes are well recognized. Studies on human, mouse and rat adipose tissues have made clear that subcutaneous and visceral deposits play different roles, which is also reflected by different protein and gene expression patterns. In ruminants, fat tissues play important biological roles not only for animal health, but also for quality and gain in meat and milk production. Yet very few studies have explored the ruminant adipose tissue proteomes. The aim of our study was to compare subcutaneous and visceral adipose tissues of goat, focusing on proteins involved in immune and inflammatory response. A 2-D LC-MS/MS approach followed by cluster analysis shows a clear distinction between subcutaneous and visceral fat tissue proteomes, and qualitative RT-PCR based analysis of 30 potential adipokines further confirmed the individual expression patterns of 26 of these, including 7 whose mRNA expression was observed for the first time in adipose tissues. This study provides a first description of adipose tissue proteomes in goat, and presents observations on novel proteins related to metabolic and inflammatory pathways. The mass spectrometry data have been deposited to the ProteomeXchange Consortium with the data set identifier PXD000564.

Biological significance

The proteomic analysis of different subcutaneous and visceral adipose tissue deposits showed tissue specific differences in protein expressions of well known as well as novel adipokines. This highlights the importance of sampling site when studying adipose tissue's metabolic roles. The protein expression characteristics of adipose tissues was evaluated by quantitative RT-PCR, and confirmed that adipose tissues play a central role in controlling inflammation, detoxification and coagulation pathways, as well as regulation of body fat mobilization in dairy animals. These findings are of particular interest in farm animals where health and production traits are important for animal welfare and for economic gains. (C) 2014 Elsevier B.V. All rights reserved.

Original languageEnglish
JournalJournal of Proteomics
Volume108
Pages (from-to)295-305
Number of pages11
ISSN1874-3919
DOIs
Publication statusPublished - 28 Aug 2014

    Research areas

  • Subcutaneous adipose tissue, Visceral adipose tissue, LC-MS/MS, Adipokines, Goat, ALPHA-B-CRYSTALLIN, DEPOT-SPECIFIC DIFFERENCES, ACUTE-PHASE PROTEINS, OXIDATIVE STRESS, EARLY LACTATION, DAIRY-COWS, GENE-EXPRESSION, FAT DEPOTS, CELLS, OBESITY

See relations at Aarhus University Citationformats

ID: 84857712