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Ben-Mustapha Y, Rekik R, Ben-Fradj MK, Serghini M, Sanhaji H, Ben-Ahmed M, Boubaker J, Feki M. Abnormal expression of oxylipins and related synthesizing/signaling pathways in inflammatory bowel diseases. Prostaglandins Leukot Essent Fatty Acids 2024; 202:102628. [PMID: 38991597 DOI: 10.1016/j.plefa.2024.102628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/11/2024] [Accepted: 06/30/2024] [Indexed: 07/13/2024]
Abstract
We investigated selected oxylipins and related synthesizing/signaling pathways in 28 patients with Crohn's disease (CD), 19 patients with ulcerative colitis (UC), and 39 controls. Plasma and mucosal PUFA/oxylipin profiles were analyzed by LC-MS/MS. mRNA expression of 5, 12 and 15-lipooxygenases, FPR2/ALXR, FFAR4/GPR120, annexin A1, and interleukin-10 were analyzed by qRT-PCR. Oxylipin profile and related metabolic pathways were altered in both CD and UC patients. The patterns were characterized by increased prostaglandins, leukotrienes, and lipoxins and overexpression of 5-lipoxygenase, FPR2/ALXR, annexin A1, and interleukin-10 genes, but decreased n-3 PUFAs and 18-hydroxyeisapentaenoic acid. The gene of 15-lipoxygenase was under-expressed mainly in UC patients. CD and UC are associated with unbalanced n-6 and n-3 derivatives and pro-inflammatory and anti-inflammatory/pro-resolving mediators favoring the former compounds. The findings suggest that oxylipins engage in the pathophysiology of the diseases. Targeting oxylipin's metabolic pathways would be a promising therapy for inflammatory bowel diseases.
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Affiliation(s)
- Yamina Ben-Mustapha
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia; Laboratory of Biochemistry & LR99ES11, Rabta Hospital, Tunis 1007, Tunisia
| | - Raja Rekik
- Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia; Institute Pasteur of Tunis, Laboratory of Clinical Immunology, Tunis 1002, Tunisia
| | - Mohamed K Ben-Fradj
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Laboratory of Biochemistry & LR99ES11, Rabta Hospital, Tunis 1007, Tunisia
| | - Meriem Serghini
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Rabta Hospital, Service of Gastroenterology A, Tunis 1007, Tunisia
| | - Haifa Sanhaji
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Laboratory of Biochemistry & LR99ES11, Rabta Hospital, Tunis 1007, Tunisia
| | - Melika Ben-Ahmed
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Institute Pasteur of Tunis, Laboratory of Clinical Immunology, Tunis 1002, Tunisia
| | - Jalel Boubaker
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Rabta Hospital, Service of Gastroenterology A, Tunis 1007, Tunisia
| | - Moncef Feki
- Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia; Laboratory of Biochemistry & LR99ES11, Rabta Hospital, Tunis 1007, Tunisia.
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Jung SH, Saxena A, Kaur K, Fletcher E, Ponemone V, Nottingham JM, Sheppe JA, Petroni M, Greene J, Graves K, Baliga MS, Fayad R. The role of adipose tissue-associated macrophages and T lymphocytes in the pathogenesis of inflammatory bowel disease. Cytokine 2012; 61:459-68. [PMID: 23245845 DOI: 10.1016/j.cyto.2012.11.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 10/24/2012] [Accepted: 11/20/2012] [Indexed: 12/24/2022]
Abstract
Inflammatory bowel diseases (IBDs) are chronic inflammatory disorders of the gastrointestinal tract that affect more than 3 million people worldwide, but the pathological etiology is still unknown. The overall purpose of our investigations was to elucidate the possibility of pathological causes of IBD, and therefore, we determined the difference of inflammatory cytokine profiles in adipose tissue macrophages (ATMs) and T lymphocytes (ATTs) obtained near active lesions of IBD; investigated whether the alteration in ATM activation induces genes involved in collagen formation; and evaluated the effects of fatty acid oxidation inhibitors on factors involved in inflammation and collagen production by ATMs in IBD. Adipose tissues (ATs) were collected near active lesions and also at the margin of resected segments of the bowel from IBD patients with ulcerative colitis (UC) and CD (n=14/group). Normal appearing ATs from control subjects (n=14) who had colon resection for adenocarcinoma were collected as far away from the cancer lesion as possible to rule out possible changes. Compared with inactive disease lesions, ATMs and ATTs from active lesions released more IL-6, IL-4 and IL-13. Treatments of cytokine IL-4 and/or IL-13 to ATMs reduced iNOS expression but increased Arg-I expression which were exacerbated when treated with T cell- and adipocyte-conditioned medium. However, fatty acid oxidation inhibitors prevented the effects of cytokines IL-4 and/or IL-13 on iNOS and Arg-I expressions. This study was the first to show the effect of IL-4 and IL-13 on collagen formation, through iNOS and Arg-I expressions, that was exacerbated in a condition that mimics in vivo condition of active lesions. Moreover, our study was the first to provide potential benefits of fatty acid oxidation inhibitors to ATMs on preventing collagen formation; thus, providing therapeutic implications for individuals with intestinal fibrosis and stricture lesions, although future study should be guaranteed to elucidate the underlying mechanisms.
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Affiliation(s)
- Seung Ho Jung
- Department of Pharmacology, Physiology & Neuroscience, School of Medicine, University of South Carolina, Columbia, SC 29208, USA
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