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The minor salivary gland proteome in Sjögren’s syndrome
Author(s) -
Hjelmervik TOR,
Jonsson R,
Bolstad AI
Publication year - 2009
Publication title -
oral diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.953
H-Index - 87
eISSN - 1601-0825
pISSN - 1354-523X
DOI - 10.1111/j.1601-0825.2009.01531.x
Subject(s) - proteome , salivary gland , proteomics , ribosomal protein , two dimensional gel electrophoresis , saliva , gel electrophoresis , microbiology and biotechnology , chemistry , immunology , biology , medicine , biochemistry , ribosome , rna , gene
Objective: To identify the global protein expression (the proteome) in the minor salivary glands from primary Sjögren’s syndrome (pSS) patients and non‐SS controls. Materials and methods: Minor labial salivary glands were obtained from six pSS patients and from six age‐matched non‐SS controls, lysed in SDS buffer and pooled into two groups, respectively. The lysates were analysed by liquid chromatography electrospray ionization combined with tandem mass spectrometry. Also, the proteins were separated by two‐dimensional polyacrylamide gel electrophoresis and protein spots were subjected to mass spectrometry. Results: Heat shock proteins, mucins, carbonic anhydrases, enolase, vimentin and cyclophilin B were among the proteins identified. The differences in the proteomes of minor salivary glands from pSS patients and non‐SS controls were mainly related to ribosomal proteins, immunity and stress. Alpha‐defensin‐1 and calmodulin were among six proteins exclusively identified in pSS patients. Conclusion: We have identified several minor salivary gland proteins that may have implications for clarifying the SS pathophysiology. This experiment adds to the knowledge of proteins produced in salivary glands in health and disease, and may form the basis of further studies on biomarkers of prognostic and diagnostic value.