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| Content Provider | frontiers |
|---|---|
| Author | Wang, Qiang Ma, Linna An, Caiping Wise, Steven G. Bao, Shisan |
| Abstract | IL-38, an anti-inflammatory cytokine, is a key regulator of homeostasis in host immunity. Intestinal immunity plays a critical role in defence against pathogenic invasion, as it is the largest surface organ and the most common entry point for micro-organisms. Dysregulated IL-38 activity is observed in several autoimmune diseases including systemic lupus erythematosus and atherosclerosis. The protective role of IL-38 is well illustrated in experimental colitis models, showing significantly worse colitis in IL-38 deficient mice, compared to wildtype mice. Moreover, exogenous IL 38 has been shown to ameliorate experimental colitis. Surprisingly, upregulated IL 38 is detected in inflamed tissue from inflammatory bowel disease patients, consistent with increased circulating cytokine levels, demonstrating the complex nature of host immunity in vivo. However, colonic IL-38 is significantly reduced in malignant tissues from patients with colorectal cancer (CRC), compared to adjacent non-cancerous tissue. Additionally, IL-38 expression in CRC correlates with 5-year survival, tumour size and differentiation, suggesting IL-38 plays a protective role during the development of CRC. IL 38 is also an independent biomarker for the prognosis of CRC, offering useful information in the management of CRC. Taken together, these data demonstrate the role of IL-38 in the maintenance of normal intestinal mucosal homeostasis, but that dysregulation of IL-38 contributes to initiation of chronic inflammatory bowel disease (resulting from persistent local inflammation), and that IL-38 provides protection during the development of colorectal cancer. Such data provide useful information for the development of novel therapeutic targets in the management of intestinal diseases for more precise medicine. |
| ISSN | 16643224 |
| DOI | 10.3389/fimmu.2022.1051787 |
| Volume Number | 13 |
| Journal | Frontiers in Immunology |
| Language | English |
| Publisher Date | 2022-11-03 |
| Access Restriction | Open |
| Subject Keyword | Intestine Cancer IL-38 Immunity IL-38 Inflammation Intestinal Mucosa Colorectal cancer |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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