Molecular mechanisms of KMT2C alterations in gastrointestinal cancers: enhancer network destabilization, lineage plasticity, and clinical translation - Report - MDSpire

Molecular mechanisms of KMT2C alterations in gastrointestinal cancers: enhancer network destabilization, lineage plasticity, and clinical translation

  • By

  • Xintao Zeng

  • Pei Yang

  • Tao Wang

  • Ruizi Shi

  • Chuan Qin

  • Lun Zhang

  • Ting Jiang

  • Xi Chen

  • Hua Luo

  • Jihong Wei

  • Haiyan Hu

  • Decai Wang

  • Jianjun Wang

  • May 28, 2026

  • 0 min

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Clinical Report: Investigating the Role of KMT2C Alterations in GI Cancers

Overview

KMT2C alterations in gastrointestinal cancers are associated with tumor mutational burden and immune infiltration patterns.

Background

Gastrointestinal malignancies exhibit considerable heterogeneity and complexity, complicating treatment outcomes. Understanding the role of epigenetic factors, such as KMT2C alterations, is important for tumor behavior and therapeutic responses.

Data Highlights

No specific numerical data or trial data provided in the source material.

Key Findings

['KMT2C is recurrently altered in various gastrointestinal cancers through loss-of-function variants and structural alterations.', 'KMT2C deficiency destabilizes enhancer and super-enhancer networks, leading to transcriptional rewiring.', 'Alterations in KMT2C can reshape the tumor immune microenvironment, affecting antigenic burden and inflammatory signaling.', 'KMT2C alterations are linked to tumor mutational burden (TMB) and microsatellite instability (MSI).', 'Deficiencies in DNA repair mechanisms associated with KMT2C alterations suggest potential for synthetic-lethal strategies.']

Clinical Implications

KMT2C alterations may inform the development of targeted therapies and immunotherapies in gastrointestinal cancers. Understanding these alterations can aid in predicting treatment responses and tailoring patient management strategies.

Conclusion

KMT2C alterations play a significant role in gastrointestinal cancers, influencing both tumor biology and clinical outcomes. Further research is needed to fully elucidate their implications for treatment strategies.

Related Resources & Content

  1. Blood Cancer Journal, 2021 -- Factors Influencing Treatment Outcomes in Adults with Acute Myeloid Leukemia and KMT2A Rearrangements
  2. Frontiers in Endocrinology, 2026 -- Editorial: Changes in Metabolic Characteristics Associated with Gastrointestinal Tract Cancers, Volume II
  3. Gastric Cancer, 2019 -- Association of KRAS Status with Histological Phenotypes in Gastric Cancer: Findings from a Comprehensive Multicenter Investigation
  4. ESMO Clinical Practice Guideline interim update on the treatment of locally advanced oesophageal and oesophagogastric junction adenocarcinoma - PMC
  5. Pembrolizumab plus chemotherapy versus chemotherapy for advanced esophageal cancer: 5-year extended follow-up for the randomized phase III KEYNOTE-590 study - PMC
  6. Frontiers | Molecular Mechanisms of KMT2C Alterations in Gastrointestinal Cancers: Enhancer Network Destabilization, Lineage Plasticity, and Clinical Translation
  7. Gastric Cancer — Genomic Analysis and Molecular Characterization of Somatic Copy Number Variations in Gastric Intramucosal Neoplasias According to Microsatellite Status
  8. ESMO Clinical Practice Guideline interim update on the treatment of locally advanced oesophageal and oesophagogastric junction adenocarcinoma and metastatic squamous-cell carcinoma - PMC
  9. Pembrolizumab plus chemotherapy versus chemotherapy for advanced esophageal cancer: 5-year extended follow-up for the randomized phase III KEYNOTE-590 study - PMC
  10. Frontiers | Molecular Mechanisms of KMT2C Alterations in Gastrointestinal Cancers: Enhancer Network Destabilization, Lineage Plasticity, and Clinical Translation

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