Open Access

Comparative proteomics analysis of primary cutaneous amyloidosis

  • Authors:
    • Daxing Cai
    • Yang Li
    • Chunlei Zhou
    • Yulin Jiang
    • Jian Jiao
    • Lin Wu
  • View Affiliations

  • Published online on: July 31, 2017     https://doi.org/10.3892/etm.2017.4852
  • Pages: 3004-3012
  • Copyright: © Cai et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Primary cutaneous amyloidosis (PCA) is a localized skin disorder that is characterized by the abnormal deposition of amyloid in the extracellular matrix (ECM) of the dermis. The pathogenesis of PCA is poorly understood. The objective of the present study was to survey proteome changes in PCA lesions in order to gain insight into the molecular basis and pathogenesis of PCA. Total protein from PCA lesions and normal skin tissue samples were extracted and analyzed using the isobaric tags for relative and absolute quantitation technique. The function of differentially expressed proteins in PCA were analyzed by gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and protein-protein interaction analysis. The proteins that were most upregulated in PCA lesions were further analyzed by immunohistochemistry. A total of 1,032 proteins were identified in PCA lesions and control skin samples, with 51 proteins differentially expressed in PCA lesions, of which 27 were upregulated. In PCA lesions, the upregulated proteins were primarily extracellulary located. In addition, GO analysis indicated that the upregulated proteins were significantly enriched in the biological processes of epidermal development, collagen fiber organization and response to wounding (adjusted P<0.001). KEGG analysis indicated that the upregulated proteins were significantly enriched in the signaling pathways of cell communication, ECM receptor interaction and focal adhesion (adjusted P<0.001). Furthermore, the upregulated proteins were enriched in the molecular function of calcium ion binding, and the calcium binding proteins calmodulin‑like protein 5, S100 calcium‑binding protein A7 (S100A7)/fatty‑acid binding protein and S100A8/A9 exhibited the highest levels of upregulation in PCA. This analysis of differentially expressed proteins in PCA suggests that increased focal adhesion, differentiation and wound healing is associated with the pathogenesis of PCA.

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October-2017
Volume 14 Issue 4

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Cai D, Li Y, Zhou C, Jiang Y, Jiao J and Wu L: Comparative proteomics analysis of primary cutaneous amyloidosis. Exp Ther Med 14: 3004-3012, 2017
APA
Cai, D., Li, Y., Zhou, C., Jiang, Y., Jiao, J., & Wu, L. (2017). Comparative proteomics analysis of primary cutaneous amyloidosis. Experimental and Therapeutic Medicine, 14, 3004-3012. https://doi.org/10.3892/etm.2017.4852
MLA
Cai, D., Li, Y., Zhou, C., Jiang, Y., Jiao, J., Wu, L."Comparative proteomics analysis of primary cutaneous amyloidosis". Experimental and Therapeutic Medicine 14.4 (2017): 3004-3012.
Chicago
Cai, D., Li, Y., Zhou, C., Jiang, Y., Jiao, J., Wu, L."Comparative proteomics analysis of primary cutaneous amyloidosis". Experimental and Therapeutic Medicine 14, no. 4 (2017): 3004-3012. https://doi.org/10.3892/etm.2017.4852