{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T13:16:31Z","timestamp":1785417391797,"version":"3.56.0"},"reference-count":119,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T00:00:00Z","timestamp":1777075200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Liaoning Province Science and Technology Plan Alliance Fund project","award":["2024-BSLH-041"],"award-info":[{"award-number":["2024-BSLH-041"]}]},{"DOI":"10.13039\/501100012465","name":"Dalian Medical University","doi-asserted-by":"crossref","award":["ZXY2025GJ03"],"award-info":[{"award-number":["ZXY2025GJ03"]}],"id":[{"id":"10.13039\/501100012465","id-type":"DOI","asserted-by":"crossref"}]},{"award":["ZXY2025GJ03"],"award-info":[{"award-number":["ZXY2025GJ03"]}],"id":[{"id":"https:\/\/ror.org\/04c8eg608","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Inflammatory bowel disease (IBD) is characterized by chronic intestinal inflammation, epithelial barrier disruption and immune dysfunction. Alleviating and curing these pathological manifestations is the goal of IBD treatment. Despite substantial advances in targeted immunotherapies and anti-inflammatory strategies, achieving sustained intestinal mucosal healing remains a major clinical challenge. Dynamin-related protein 1 (Drp1) is a GTPase that mediates mitochondrial fission and plays a crucial role in maintaining the dynamic balance of mitochondrial morphology and function. In IBD, Drp1 expression is frequently upregulated and continuously activated, resulting in excessive fission and fragmentation of mitochondria. This mitochondrial dysregulation contributes to ATP depletion and excessive reactive oxygen species (ROS) production, thereby exacerbating disease progression and amplifying inflammatory signaling. This review highlights the distinctive role of Drp1 as an integrative node in IBD. Specifically, we connect mitochondrial dynamics with epithelial barrier failure, immune dysregulation, inflammatory cell death, and intestinal microenvironment remodeling. We further emphasize the potential relevance of Drp1 for biomarker-based patient stratification and mechanism-informed therapeutic targeting, thereby distinguishing this review from more descriptive accounts of mitochondrial dysfunction in intestinal inflammation.<\/jats:p>","DOI":"10.3390\/ijms27093828","type":"journal-article","created":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T11:33:37Z","timestamp":1777376017000},"page":"3828","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dynamin-Related Protein 1 (Drp1) in Inflammatory Bowel Disease: Molecular Pathways Connecting Mitochondrial Dynamics with Intestinal Inflammation and Homeostasis"],"prefix":"10.3390","volume":"27","author":[{"given":"Yingying","family":"Chi","sequence":"first","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunbo","family":"Jia","sequence":"additional","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shujie","family":"Zeng","sequence":"additional","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinyu","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dapeng","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Comparative Medicine, Dalian Medical University, Dalian 116044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,25]]},"reference":[{"key":"ref_1","unstructured":"GBD 2017 Inflammatory Bowel Disease Collaborators (2020). 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