PMID- 27066317 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160412 LR - 20210109 IS - 2190-5991 (Print) IS - 2190-6009 (Electronic) IS - 2190-5991 (Linking) VI - 7 IP - 1 DP - 2016 Mar TI - Cachexia-associated adipose tissue morphological rearrangement in gastrointestinal cancer patients. PG - 37-47 LID - 10.1002/jcsm.12037 [doi] AB - BACKGROUND AND AIMS: Cachexia is a syndrome characterized by marked involuntary loss of body weight. Recently, adipose tissue (AT) wasting has been shown to occur before the appearance of other classical cachexia markers. We investigated the composition and rearrangement of the extracellular matrix, adipocyte morphology and inflammation in the subcutaneous AT (scAT) pad of gastrointestinal cancer patients. METHODS: Surgical biopsies for scAT were obtained from gastrointestinal cancer patients, who were signed up into the following groups: cancer cachexia (CC, n = 11), weight-stable cancer (WSC, n = 9) and weight-stable control (non-cancer) (control, n = 7). The stable weight groups were considered as those with no important weight change during the last year and body mass index <25 kg/m(2). Subcutaneous AT fibrosis was quantified and characterized by quantitative PCR, histological analysis and immunohistochemistry. RESULTS: The degree of fibrosis and the distribution and collagen types (I and III) were different in WSC and CC patients. CC patients showed more pronounced fibrosis in comparison with WSC. Infiltrating macrophages surrounding adipocytes and CD3 Ly were found in the fibrotic areas of scAT. Subcutaneous AT fibrotic areas demonstrated increased monocyte chemotactic protein 1 (MCP-1) and Cluster of Differentiation (CD)68 gene expression in cancer patients. CONCLUSIONS: Our data indicate architectural modification consisting of fibrosis and inflammatory cell infiltration in scAT as induced by cachexia in gastrointestinal cancer patients. The latter was characterized by the presence of macrophages and lymphocytes, more evident in the fibrotic areas. In addition, increased MCP-1 and CD68 gene expression in scAT from cancer patients may indicate an important role of these markers in the early phases of cancer. FAU - Batista, Miguel L Jr AU - Batista ML Jr AD - Laboratory of Adipose Tissue Biology, Integrated Group of Biotechnology University of Mogi das Cruzes Mogi das Cruzes Brazil; Cancer Metabolism Research Group, Institute of Biomedical Sciences University of Sao Paulo Sao Paulo Brazil. FAU - Henriques, Felipe S AU - Henriques FS AD - Laboratory of Adipose Tissue Biology, Integrated Group of Biotechnology University of Mogi das Cruzes Mogi das Cruzes Brazil. FAU - Neves, Rodrigo X AU - Neves RX AD - Laboratory of Adipose Tissue Biology, Integrated Group of Biotechnology University of Mogi das Cruzes Mogi das Cruzes Brazil; Cancer Metabolism Research Group, Institute of Biomedical Sciences University of Sao Paulo Sao Paulo Brazil. FAU - Olivan, Mireia R AU - Olivan MR AD - Cancer Metabolism Research Group, Institute of Biomedical Sciences University of Sao Paulo Sao Paulo Brazil. FAU - Matos-Neto, Emidio M AU - Matos-Neto EM AD - Cancer Metabolism Research Group, Institute of Biomedical Sciences University of Sao Paulo Sao Paulo Brazil. FAU - Alcantara, Paulo S M AU - Alcantara PS AD - Department of Clinical Surgery, University Hospital University of Sao Paulo Sao Paulo Brazil. FAU - Maximiano, Linda F AU - Maximiano LF AD - Department of Clinical Surgery, University Hospital University of Sao Paulo Sao Paulo Brazil. FAU - Otoch, Jose P AU - Otoch JP AD - Department of Clinical Surgery, University Hospital University of Sao Paulo Sao Paulo Brazil. FAU - Alves, Michele J AU - Alves MJ AD - Cancer Metabolism Research Group, Institute of Biomedical Sciences University of Sao Paulo Sao Paulo Brazil. FAU - Seelaender, Marilia AU - Seelaender M AD - Cancer Metabolism Research Group, Institute of Biomedical Sciences University of Sao Paulo Sao Paulo Brazil. LA - eng PT - Journal Article DEP - 20150604 PL - Germany TA - J Cachexia Sarcopenia Muscle JT - Journal of cachexia, sarcopenia and muscle JID - 101552883 PMC - PMC4799865 OTO - NOTNLM OT - Adipose tissue OT - Extracellular matrix OT - Fibrosis, Inflammation, Cachexia EDAT- 2016/04/12 06:00 MHDA- 2016/04/12 06:01 PMCR- 2016/03/01 CRDT- 2016/04/12 06:00 PHST- 2014/12/19 00:00 [received] PHST- 2015/03/11 00:00 [revised] PHST- 2015/03/30 00:00 [accepted] PHST- 2016/04/12 06:00 [entrez] PHST- 2016/04/12 06:00 [pubmed] PHST- 2016/04/12 06:01 [medline] PHST- 2016/03/01 00:00 [pmc-release] AID - JCSM12037 [pii] AID - 10.1002/jcsm.12037 [doi] PST - ppublish SO - J Cachexia Sarcopenia Muscle. 2016 Mar;7(1):37-47. doi: 10.1002/jcsm.12037. Epub 2015 Jun 4.