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Cachexia-associated adipose tissue morphological rearrangement in gastrointestinal cancer patients

Batista Jr, Miguel L ; Henriques, Felipe S ; Neves, Rodrigo X ; Olivan Riera, Mireia ; Matos-Neto, Emídio M ; Alcântara, Paulo S. M ; Maximiano, Linda F ; Otoch, José P ; Alves, Michele J ; Seelaender, Marília

John Wiley & Sons 2016-03

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  • Título:
    Cachexia-associated adipose tissue morphological rearrangement in gastrointestinal cancer patients
  • Autor: Batista Jr, Miguel L ; Henriques, Felipe S ; Neves, Rodrigo X ; Olivan Riera, Mireia ; Matos-Neto, Emídio M ; Alcântara, Paulo S. M ; Maximiano, Linda F ; Otoch, José P ; Alves, Michele J ; Seelaender, Marília
  • Assuntos: Adipose tissues ; Cachexia ; Caquèxia ; Espai extracel·lular ; Extracellular space ; Teixit adipós
  • Notas: 27066317
    Articles publicats en revistes (Patologia i Terapèutica Experimental)
    Reproducció del document publicat a: https://doi.org/10.1002/jcsm.12037
    697753
    https://doi.org/10.1002/jcsm.12037
    2190-5991
    http://hdl.handle.net/2445/167784
    Journal of Cachexia Sarcopenia and Muscle, 2016, vol. 7, num. 1, p. 37-47
  • Descrição: 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/m2. 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.
  • Editor: John Wiley & Sons
  • Data de criação/publicação: 2016-03
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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