Journal article
Myeloid translocation genes differentially regulate colorectal cancer programs
Oncogene, Vol.35(49), pp.6341-6349
12/08/2016
DOI: 10.1038/onc.2016.167
PMCID: PMC5140770
PMID: 27270437
Abstract
Myeloid translocation genes (MTGs), originally identified as chromosomal translocations in acute myelogenous leukemia, are transcriptional corepressors that regulate hematopoietic stem cell programs. Analysis of The Cancer Genome Atlas (TCGA) database revealed that MTGs were mutated in epithelial malignancy and suggested that loss of function might promote tumorigenesis. Genetic deletion of MTGR1 and MTG16 in the mouse has revealed unexpected and unique roles within the intestinal epithelium.
Mtgr1
−/−
mice have progressive depletion of all intestinal secretory cells, and
Mtg16
−/−
mice have a decrease in goblet cells. Furthermore, both
Mtgr1
−/−
and
Mtg16
−/−
mice have increased intestinal epithelial cell proliferation. We thus hypothesized that loss of MTGR1 or MTG16 would modify
Apc
1638/+
-dependent intestinal tumorigenesis.
Mtgr1
−/−
mice, but not
Mtg16
−/−
mice, had a 10-fold increase in tumor multiplicity. This was associated with more advanced dysplasia, including progression to invasive adenocarcinoma, and augmented intratumoral proliferation. Analysis of ChIP-seq datasets for MTGR1 and MTG16 targets indicated that MTGR1 can regulate Wnt and Notch signaling. In support of this, immunohistochemistry and gene expression analysis revealed that both Wnt and Notch signaling pathways were hyperactive in
Mtgr1
−/−
tumors. Furthermore, in human colorectal cancer (CRC) samples MTGR1 was downregulated at both the transcript and protein level. Overall our data indicates that MTGR1 has a context dependent effect on intestinal tumorigenesis.
Details
- Title: Subtitle
- Myeloid translocation genes differentially regulate colorectal cancer programs
- Creators
- Bobak Parang - Vanderbilt UniversityAmber M. Bradley - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USAMukul K. Mittal - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USASarah P. Short - Vanderbilt UniversityJoshua J. Thompson - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USACaitlyn W. Barrett - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USARishi D. Naik - Vanderbilt UniversityAnthony J. Bilotta - Vanderbilt UniversityMary K. Washington - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USAFrank L. Revetta - Nashville Oncology AssociatesJesse J. Smith - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USAXi Chen - Department of Biostatistics, Nashville, USAKeith T. Wilson - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USAScott W. Hiebert - Vanderbilt UniversityChristopher S. Williams - Department of Medicine, Division of Gastroenterology Department of Cancer Biology Department of Pathology, Microbiology, and Immunology Department of Surgery, Division of Surgical Oncology Department of Biostatistics Department of Biochemistry Vanderbilt Ingram Cancer Center Veterans Affairs Tennessee Valley Health Care System, Nashville, TN. USA
- Resource Type
- Journal article
- Publication Details
- Oncogene, Vol.35(49), pp.6341-6349
- DOI
- 10.1038/onc.2016.167
- PMID
- 27270437
- PMCID
- PMC5140770
- NLM abbreviation
- Oncogene
- ISSN
- 0950-9232
- eISSN
- 1476-5594
- Language
- English
- Date published
- 12/08/2016
- Academic Unit
- Hematology, Oncology, and Blood & Marrow Transplantation; Internal Medicine
- Record Identifier
- 9984420840802771
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