Molecular Pathogenesis of Cancer Induced by Inflammatory Bowel Disease

A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Biological Factors".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 660

Special Issue Editors


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Guest Editor
VCU School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
Interests: molecular pathogenesis of IBD-induced cancer; colorectal cancer; inflammatory bowel disease; inflammation-mediated carcinogenesis

E-Mail Website
Guest Editor
Department of Pathology, VCU School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
Interests: molecular mechanisms of proteotoxic stress response in cancer

Special Issue Information

Dear Colleagues,

This Special Issue focuses on cancer risk and the distinct genomic landscapes of inflammatory bowel disease-associated cancer (IBD-AC), highlighting mechanisms that diverge from conventional sporadic colorectal carcinogenesis. Chronic inflammation, epithelial injury and aberrant DNA damage responses shape a unique evolutionary trajectory in IBD-AC, with early genomic instability and non-canonical driver events.

A central theme of this issue is the oncogenic role of missense mutant p53, which is frequently acquired early in IBD-associated neoplasia. Rather than acting solely as a loss-of-function tumor suppressor, mutant p53 exhibits gain-of-function activities that reprogram transcriptional networks, promote epithelial survival under inflammatory stress, and facilitate malignant progression. Particular emphasis is placed on the mutant p53–FOSL1–MCL1 axis, a signaling pathway that enhances cell survival, resistance to apoptosis and clonal expansion in inflamed mucosa.

Collectively, the contributions in this issue integrate genomic, molecular and pathological insights to advance our understanding of IBD-associated carcinogenesis and to identify potential biomarkers and therapeutic vulnerabilities driven by mutant p53 signaling. This work underscores the need for disease-specific models of cancer-risk assessment and targeted intervention in patients with chronic inflammatory bowel disease.

Prof. Dr. Guang-Yu Yang
Dr. Senthil Radhakrishnan
Guest Editors

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Keywords

  • cancer
  • inflammatory bowel disease
  • genomic
  • pathogenesis
  • biomarkers
  • pathway
  • therapeutic strategies

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Published Papers (1 paper)

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Review

16 pages, 510 KB  
Review
The Role of FOSL1 in Inflammatory Bowel Disease (IBD) Pathogenesis and IBD-Associated Tumorigenesis
by Grace J. Rilee, Senthil K. Radhakrishnan, Guang-Yu Yang and Jiong Li
Biomolecules 2026, 16(5), 647; https://doi.org/10.3390/biom16050647 - 27 Apr 2026
Viewed by 443
Abstract
Inflammatory bowel diseases (IBD), including ulcerative colitis and Crohn’s disease, are chronic inflammatory disorders of the gastrointestinal tract associated with epithelial barrier dysfunction, dysregulated immune responses, and an increased risk of cancer. Persistent inflammation is a key driver of IBD-associated tumorigenesis, yet the [...] Read more.
Inflammatory bowel diseases (IBD), including ulcerative colitis and Crohn’s disease, are chronic inflammatory disorders of the gastrointestinal tract associated with epithelial barrier dysfunction, dysregulated immune responses, and an increased risk of cancer. Persistent inflammation is a key driver of IBD-associated tumorigenesis, yet the transcriptional regulators linking inflammatory signaling to epithelial transformation remain incompletely defined. FOSL1 (FOS-like antigen 1), a member of the activator protein-1 (AP-1) transcription factor family, has emerged as a critical mediator at the intersection of inflammation, epithelial homeostasis, and cancer progression. FOSL1 is induced by pro-inflammatory pathways commonly activated in IBD, including MAPK/ERK, NF-κB, and cytokine signaling, and regulates gene programs involved in cell proliferation, migration, barrier integrity, immune modulation, and survival. Accumulating evidence demonstrates that FOSL1 expression is elevated in inflamed intestinal mucosa and in IBD-associated malignancies, where it contributes to epithelial dysfunction, chronic inflammation, tumor initiation, metastasis, angiogenesis, and therapeutic resistance. Moreover, FOSL1-driven transcriptional networks show mechanistic overlap between IBD-associated colorectal cancer (CRC) and other inflammation-linked gastrointestinal cancers, such as pancreatic ductal adenocarcinoma (PDAC). In this review, we summarize current knowledge on the regulation and function of FOSL1 in intestinal inflammation and IBD-associated cancers, highlight its context-dependent roles in epithelial and immune compartments, and discuss emerging therapeutic strategies aimed at indirectly targeting FOSL1 signaling pathways. Full article
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