Environmental and immune dynamics in the pathophysiology of Sjogren’s syndrome

Sjogren’s Syndrome (SS) comes under the category of autoimmune disorder, causing oral and eye dryness because SS mainly affects secretory organs of the sufferer’s body, such as the tear and salivary glands, resulting in chronic inflammation. Autoreactive B and T cells that secrete disease-specific autoantibodies and persistently stimulate the type I interferon system are central to the origination of SS. Some viruses, especially Epstein-Barr virus (EBV), human T-cell lymphotropic virus type-1 (HTLV-1), and hepatitis C virus, are proposed as triggers. SS is even so due to environmental factors, and in its pathogenesis, there are several combined environmental factors. It's been suggested that SS might be more vulnerable to exposure to pollutants in the air, such as nitrogen dioxide, particles, or some chemical solvents. It has been found that stress and other environmental factors are causes or contributing causes that can act as initiators of the disease process in genetically predisposed individuals. Deficiency of vitamin D has also been proposed as an etiological factor. Several nongenetic, broad environmental influences appear to have important direct effects on the development of the disease. Throughout the studies, these exposures suggest that autoreactive B cells, as well as T-cell activation, trigger type I interferon-driven glandular inflammation and play a role in the breakdown of peripheral tolerance. The available research articles provide qualitative and limited quantitative associations, but results remain incompatible due to diverse study designs. There are no large, prospective studies being conducted with exposure analysis together with immunological and genetic phenotyping. Overall, published studies in relation to the environmental risk factors of SS have been reviewed extensively in this review, and a major research gap is the unavailability of large, prospective studies that merge environmental tracking with immunologic and genetic profiling. Addressing the research gap, this study presents an opportunity for a more complete investigation of how natural influences are related to the etiology and progression of illness. It would be beneficial in the future for early diagnosis, strategies of prevention, and measures of improved management of SS.