Related Experiment Video

Updated: Jun 16, 2025

Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
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Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies

Published on: September 15, 2023

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Epigenetic alterations of TP53INP1 by EHMT2 regulate the cell cycle in gastric cancer

Tae Young Ryu1, In Hwan Tae1, Tae-Su Han1,2,3

  • 1Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.

Experimental Hematology & Oncology
|August 19, 2024
PubMed
Abstract

Insights

EHMT2 is overexpressed in gastric cancer (GC) and inhibiting it halts cancer cell proliferation. This histone methyltransferase is a promising new therapeutic target for effective GC treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Gastric cancer (GC) presents high incidence and mortality rates, necessitating novel therapeutic targets due to limitations of current treatments.
  • Existing chemical interventions for GC often exhibit low effectiveness and significant side effects.
  • Research into new GC treatment targets and mechanisms of action (MOAs) is crucial.

Discussion:

  • EHMT2 (Euclidean distance metric learning, Mahalanobis-distance based, k-nearest neighbors, and transfer learning) was identified as significantly overexpressed in GC patient samples via TCGA data.
  • EHMT2 functions as a histone 3 lysine 9 (H3K9) methyltransferase.
  • Knockdown of EHMT2 using siRNA resulted in G1 cell cycle arrest and reduced GC cell proliferation.

Key Insights:

  • EHMT2 knockdown induces TP53INP1, leading to cell cycle arrest and inhibited proliferation.
  • Specific EHMT2 inhibitors, BIX01294 and UNC0638, also upregulate TP53INP1, causing cell cycle arrest in GC cell lines.
  • Validated EHMT2's role in GC proliferation using 3D spheroid culture, patient-derived gastric cancer organoids (PDOs), and an in vivo xenograft model.

Outlook:

  • EHMT2 inhibition demonstrates efficacy across multiple experimental models, including organoids and xenografts.
  • The findings highlight EHMT2 as a potential therapeutic target for gastric cancer.
  • Further investigation into EHMT2-targeted therapies could lead to improved GC treatment strategies.
Keywords:
Cell cycleEHMT2Gastric cancerTP53INP1

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