ArticleJournal of lipid research2018
Deficiency of alkaline SMase enhances dextran sulfate sodium-induced colitis in mice with upregulation of autotaxin.
Article in Journal of lipid research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Alkaline sphingomyelinase (ENPP7) attenuates DSS-induced colitis by modulating FOXO1-mediated antioxidative stress responses.BMC gastroenterology · 2026Article
- Autotaxin Induces S1P/S1PR1 Signaling to Affect Th17/Treg Cell Balance and Exacerbate Intestinal Inflammation in Colitis.International journal of molecular sciences · 2026Article
- The diverse roles of sphingolipids in inflammatory bowel disease.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024Review
- Alkaline sphingomyelinase deficiency impairs intestinal mucosal barrier integrity and reduces antioxidant capacity in dextran sulfate sodium-induced colitis.World journal of gastroenterology · 2024Article
- Therapeutic Potential for Sphingolipids in Inflammatory Bowel Disease and Colorectal Cancer.Cancers · 2024Review
- A dual role of lysophosphatidic acid type 2 receptor (LPAR2) in nonsteroidal anti-inflammatory drug-induced mouse enteropathy.Acta pharmacologica Sinica · 2024Article
- Functional roles of sphingolipids in immunity and their implication in disease.Experimental & molecular medicine · 2023Review
- Alkaline sphingomyelinase (NPP7) impacts the homeostasis of intestinal T lymphocyte populations.Frontiers in immunology · 2022Article
- Autotaxin loss accelerates intestinal inflammation by suppressing TLR4-mediated immune responses.EMBO reports · 2020Article
- Acid and Neutral Sphingomyelinase Behavior in Radiation-Induced Liver Pyroptosis and in the Protective/Preventive Role of rMnSOD.International journal of molecular sciences · 2020Article
Corrections and comments
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Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Intestinal alkaline SMase (Alk-SMase) cleaves phosphocholine from SM, platelet-activating factor (PAF), and lysophosphatidylcholine. We recently found that colitis-associated colon cancer was 4- to 5-fold enhanced in Alk-SMase KO mice. Here, we further studied the pathogenesis of colitis induced by dextran sulfate sodium (DSS) in WT and KO mice. Compared with WT mice, KO mice demonstrated greater body weight loss, more severe bloody diarrhea, broader inflammatory cell infiltration, and more serious epithelial injury. Higher levels of PAF and lower levels of interleukin (IL)10 were identified in KO mice 2 days after DSS treatment. A greater and progressive increase of lysophosphatidic acid (LPA) was identified. The change was associated with increased autotaxin expression in both small intestine and colon, which was identified by immunohistochemistry study, Western blot, and sandwich ELISA. The upregulation of autotaxin coincided with an early increase of PAF. IL6 and TNFα were increased in both WT and KO mice. At the later stage (day 8), significant decreases in IL6, IL10, and PAF were identified, and the decreases were greater in KO mice. In conclusion, deficiency of Alk-SMase enhances DSS-induced colitis by mechanisms related to increased autotaxin expression and LPA formation. The early increase of PAF might be a trigger for such reactions.
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