Abstract. Periostin, also known as osteoblast-specific factor 2, is a cell-adhesion protein with pleiotropic properties. The protein serves a vital role in the maintenance and development of tooth and bone tissue, in addition to cardiac development and healing. Periostin levels are increased in several forms of cancer, including pancreatic, ovarian, colon, lung, breast, gastric, thyroid, and esophageal head and neck carcinomas. The present review highlights the key role of periostin in tumorigenesis, particularly in increasing cell survival, invasion, angiogenesis, epithelial-mesenchymal transition and metastasis of carcinoma cells by interacting with numerous cell-surface receptors, including integrins, in the phosphoinositide 3-kinase-Akt pathway. In addition, periostin actively affects the canonical Wnt signaling pathway of colorectal tumorigenesis. The current review focused on the involvement of periostin in the development of colorectal, esophageal and gastric cancer.
Our study shows that, besides a rapid suppression of disease activity, serum sCAM and VEGF concentrations are downregulated following anti-tumour necrosis factor alpha (TNFalpha) therapy combined with MTX. Prolonged treatment with etanercept sustained or even more remarkably diminished the sCAM and VEGF serum concentrations.
Objective. Chemokines promote leukocyte traffic into the synovium, leading to the initiation and progression of the rheumatoid arthritis (RA). The aim of the study was to determine the effects of etanercept, a soluble tumour necrosis factor receptor (sTNFr), on the serum chemokines levels in patients with active RA.
Methods
In patients with rheumatoid arthritis the serum profile of transferrin isoforms is altered. We predict that the levels of trisialylated isoforms of transferrin will serve as a useful biochemical marker of the rheumatoid arthritis activity.
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