Reactive metabolites serve as signaling messengers for the evolution and perpetuation of the inflammatory process that is often associated with cell death and degeneration.
This is an early, critical aspect to synovial pannus formation and facilitates the perpetuation of the inflammatory process within synovial joints [ 7].
Several clinical cohorts, meta-analysis, and case-control studies have produced compelling evidence that inflammation participates in both initiation and perpetuation of the atherosclerotic process [ 29– 31].
The rapidly increasing local estrogen levels during the process of healing interfere with the ovarian control over uterine peristaltic activity leading rapidly to second step injury with ensuing auto-traumatization and perpetuation of the disease process.
There is strong evidence to implicate MHC class II as an important marker of genetic susceptibility to RA, which implicates T cell-antigen-presenting cell interaction in a fundamental way in the initiation and perpetuation of the autoimmune process.
MSC share many properties with fibroblast-like synoviocytes (FLS) [ 22], the cells responsible for the thickening of the synovium in the joint in RA and perpetuation of the inflammatory process by recruiting and supporting the survival of inflammatory cells [ 23].
In that case, antibodies have no ability to recognize their target as they cannot cross the cell membrane and only immune cells with cytotoxic function can kill the infected cells and stop the perpetuation of the infectious process.
Reactive oxygen species and reactive nitrogen species serve as signaling messengers for the evolution and perpetuation of the inflammatory process that is often associated with the condition of oxidative stress, which involves genetic regulation.
Furthermore, interferon- γ released from activated T lymphocytes can induce the expression of MHC class II molecules on thyroid cells, leading T-cell restimulation and perpetuation of the autoimmune process (Huang and Kukes, 1999).
This observation suggests that arthritogenic Abs and T cells may briefly synergize to initiate inflammation but that continuous in vivo production of autoAbs by B cells (probably in a T cell-supported manner) is necessary for the perpetuation of the inflammatory process and establishment of chronic disease.
