Evidence map›Paper›PMID 33043499›Full record

ArticleCancer science2020

Small subset of Wnt-activated cells is an initiator of regrowth in colorectal cancer organoids after irradiation.

Hiroko Endo, Jumpei Kondo, Kunishige Onuma, Masayuki Ohue, Masahiro Inoue

Open access · goldAbstract read
In one paragraph

Article in Cancer science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 30% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Breast cancer vaccines for treatment and prevention.Breast cancer research and treatment · 2022
    Review
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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

5 authors at 2 institutions in 1 country.

Hiroko EndoDepartment of Biochemistry, Osaka International Cancer Institute, Osaka, Japan.
Jumpei KondoDepartment of Biochemistry, Osaka International Cancer Institute, Osaka, Japan.
Kunishige OnumaDepartment of Clinical Bio-resource Research and Development, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Masayuki OhueDepartment of Surgery, Osaka International Cancer Institute, Osaka, Japan.
Masahiro InoueDepartment of Biochemistry, Osaka International Cancer Institute, Osaka, Japan.ORCID https://orcid.org/0000-0001-7315-026X
Kyoto University · JPOsaka International Cancer Institute · JP

Funding

Japan Agency for Medical Research and Development P-CREATE/19cm0106203h0004Japan Society for the Promotion of Science KAKENHI/16K10414Takeda Science Foundation
6 · The paper itself

Abstract

Most colorectal cancers (CRCs) are differentiated adenocarcinomas, which maintain expression of both stemness and differentiation markers. This observation suggests that CRC cells could retain a regeneration system of normal cells upon injury. However, the role of stemness in cancer cell regeneration after irradiation is poorly understood. Here, we examined the effect of radiation on growth, stemness, and differentiation in organoids derived from differentiated adenocarcinomas. Following a sublethal dose of irradiation, proliferation and stemness markers, including Wnt target genes, were drastically reduced, but differentiation markers remained. After a static growth phase after high dose of radiation, regrowth foci appeared; these consisted of highly proliferating cells that expressed stem cell markers. Radiosensitivity and the ability to form foci differed among the cancer tissue-originated spheroid (CTOS) lines examined and showed good correlation with in vivo radiation sensitivity. Pre-treating organoids with histone deacetylase inhibitors increased radiation sensitivity; this increase was accompanied by the suppression of Wnt signal-related gene expression. Accordingly, Wnt inhibitors increased organoid radiosensitivity. These results suggested that only a small subset of, but not all, cancer cells with high Wnt activity at the time of irradiation could give rise to foci formation. In conclusion, we established a radiation sensitivity assay using CRC organoids that could provide a novel platform for evaluating the effects of radiosensitizers on differentiated adenocarcinomas in CRC.

Indexed as

Wnt Signaling PathwayAdenocarcinomaAnimalsCell ProliferationColorectal NeoplasmsHistone Deacetylase InhibitorsHumansNeoplastic Stem CellsOrganoidsRadiation-Sensitizing AgentsRadiation ToleranceRegenerationHistone Deacetylase InhibitorsRadiation-Sensitizing Agentscolorectal cancerorganoidradiation sensitivity assayradiosensitizerWnt

Identifiers

PMID33043499
PMCPMC7734167
OpenAlexW3092348572

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.