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Updated: Mar 6, 2026
09:16
Investigation of the Transcriptional Role of a RUNX1 Intronic Silencer by CRISPR/Cas9 Ribonucleoprotein in Acute Myeloid Leukemia Cells
Published on: September 1, 2019
8.1K
Runx3 in Immunity, Inflammation and Cancer.
Joseph Lotem1, Ditsa Levanon1, Varda Negreanu1
1Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 76100, Israel.
Advances in Experimental Medicine and Biology
|March 17, 2017
Summary
Runx3 is not a tumor suppressor gene (TSG) as previously thought. Instead, Runx3 overexpression promotes cancer progression, and its role in cancer is linked to immunity and inflammation.
Area of Science:
- Oncology
- Molecular Biology
- Immunology
Background:
- The role of Runx3 as a tumor suppressor gene (TSG) in epithelial cancers has been debated.
- Previous hypotheses suggested RUNX3 inactivation contributes to cancer development.
- Recent evidence challenges the RUNX3-TSG paradigm.
Purpose of the Study:
- To critically evaluate the evidence for and against Runx3 functioning as a major tumor suppressor gene (TSG).
- To explore the contrasting roles of Runx3 in normal epithelia versus tumor cells.
- To investigate the indirect influence of Runx3 on epithelial tumor development via immune and inflammatory pathways.
Main Methods:
- Review and synthesis of existing literature on Runx3 function in cancer.
- Analysis of high-throughput quantitative genome-wide studies.
- Examination of data from mouse cancer models.
Main Results:
- Runx3 is not expressed in normal gastric and other epithelia, contradicting the TSG model.
- RUNX3 is frequently overexpressed in various human epithelial tumors.
- Overexpression of RUNX3 in pancreatic cancer promotes migration, anchorage-independent growth, and metastasis.
Conclusions:
- RUNX3 is not a bona fide cell-autonomous TSG.
- RUNX3 overexpression can drive tumor progression and metastasis.
- Runx3's primary role in cancer development is indirect, through its influence on immunity and inflammation.
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