Evidence map›Paper›PMID 34954189›Full record

ArticleCellular and molecular gastroenterology and hepatology2022

A β-Catenin-TCF-Sensitive Locus Control Region Mediates GUCY2C Ligand Loss in Colorectal Cancer.

Jeffrey A Rappaport, Ariana A Entezari, Adi Caspi, Signe Caksa, Aakash V Jhaveri, Timothy J Stanek, Adam Ertel, Joan Kupper, Paolo M Fortina, Steven B McMahon and 3 more

Open access · goldAbstract read
In one paragraph

Article in Cellular and molecular gastroenterology and hepatology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Jeffrey A RappaportDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, Pennsylvania.
Ariana A EntezariDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, Pennsylvania.
Adi CaspiDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, Pennsylvania.
Signe CaksaDepartment of Cancer Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
Aakash V JhaveriDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, Pennsylvania.
Timothy J StanekDepartment of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
Adam ErtelDepartment of Cancer Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
Joan KupperDepartment of Cancer Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
Paolo M FortinaDepartment of Cancer Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
Steven B McMahonDepartment of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
James B JaynesDepartment of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, Pennsylvania.
Adam E SnookDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, Pennsylvania.
Scott A WaldmanDepartment of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, Pennsylvania. Electronic address: scott.waldman@jefferson.edu.
Thomas Jefferson University · US

Funding

X-Ray Crystallography and Macromolecular CharacterizationP30CA056036 · NCI · THOMAS JEFFERSON UNIVERSITY · PI DANIEL P SILVER · 1995 to 2026
$94.8M
Guanylin GUCY2C axis in Colorectal Cancer InitiationR01CA204481 · NCI · THOMAS JEFFERSON UNIVERSITY · PI WALDMAN, SCOTT A · 2017 to 2021
$1.8M
(PQ1) GUCY2C hormone loss translates APC-Beta-catenin mutations into epithelial transformationR01CA206026 · NCI · THOMAS JEFFERSON UNIVERSITY · PI WALDMAN, SCOTT A · 2016 to 2020
$1.8M
Non-canonical functions of chromatin insulators and Polycomb-group proteinsR01GM137062 · NIGMS · THOMAS JEFFERSON UNIVERSITY · PI JAYNES, JAMES B · 2020 to 2023
$1.2M
Restoring Guanylin-Guanylate cyclase C Signaling to Prevent Colorectal CancerF30CA232469 · NCI · THOMAS JEFFERSON UNIVERSITY · PI RAPPAPORT, JEFFREY · 2018 to 2022
$188k
NCI NIH HHS F30 CA232469NCI NIH HHS P30 CA056036NCI NIH HHS R01 CA204481NCI NIH HHS R01 CA206026NIGMS NIH HHS R01 GM137062
6 · The paper itself

Abstract

BACKGROUND &

aimsSporadic colorectal cancers arise from initiating mutations in APC, producing oncogenic β-catenin/TCF-dependent transcriptional reprogramming. Similarly, the tumor suppressor axis regulated by the intestinal epithelial receptor GUCY2C is among the earliest pathways silenced in tumorigenesis. Retention of the receptor, but loss of its paracrine ligands, guanylin and uroguanylin, is an evolutionarily conserved feature of colorectal tumors, arising in the earliest dysplastic lesions. Here, we examined a mechanism of GUCY2C ligand transcriptional silencing by β-catenin/TCF signaling.

methodsWe performed RNA sequencing analysis of 4 unique conditional human colon cancer cell models of β-catenin/TCF signaling to map the core Wnt-transcriptional program. We then performed a comparative analysis of orthogonal approaches, including luciferase reporters, chromatin immunoprecipitation sequencing, CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats) knockout, and CRISPR epigenome editing, which were cross-validated with human tissue chromatin immunoprecipitation sequencing datasets, to identify functional gene enhancers mediating GUCY2C ligand loss.

resultsRNA sequencing analyses reveal the GUCY2C hormones as 2 of the most sensitive targets of β-catenin/TCF signaling, reflecting transcriptional repression. The GUCY2C hormones share an insulated genomic locus containing a novel locus control region upstream of the guanylin promoter that mediates the coordinated silencing of both genes. Targeting this region with CRISPR epigenome editing reconstituted GUCY2C ligand expression, overcoming gene inactivation by mutant β-catenin/TCF signaling.

conclusionsThese studies reveal DNA elements regulating corepression of GUCY2C ligand transcription by β-catenin/TCF signaling, reflecting a novel pathophysiological step in tumorigenesis. They offer unique genomic strategies that could reestablish hormone expression in the context of canonical oncogenic mutations to reconstitute the GUCY2C axis and oppose transformation.

Indexed as

beta CateninColorectal NeoplasmsCarcinogenesisCateninsHumansLigandsLocus Control RegionReceptors, EnterotoxinTCF Transcription Factorsbeta CateninCateninsGUCY2C protein, humanLigandsReceptors, EnterotoxinTCF Transcription FactorsGuanylinsuper-enhanceruroguanylinWnt signaling

Identifiers

PMID34954189
PMCPMC9073733
OpenAlexW4200078466

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.