Evidence map›Paper›PMID 29399696›Full record

ArticleOncology reports2018

Fra‑1 enhances the radioresistance of colon cancer cells to X‑ray or C‑ion radiation.

Satoshi Endo, Mayumi Fujita, Shigeru Yamada, Kaori Imadome, Fumiaki Nakayama, Tetsuro Isozaki, Takeshi Yasuda, Takashi Imai, Hisahiro Matsubara

Open access · hybridAbstract read
In one paragraph

Article in Oncology reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 38% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. 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

9 authors at 2 institutions in 1 country.

Satoshi EndoDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba 260‑8670, Japan.
Mayumi FujitaDepartment of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan.
Shigeru YamadaHospital of The National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Japan.
Kaori ImadomeDepartment of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan.
Fumiaki NakayamaDepartment of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan.
Tetsuro IsozakiDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba 260‑8670, Japan.
Takeshi YasudaDepartment of Basic Medical Sciences for Radiation Damage, National Institutes for Quantum and Radiological Science and Technology, Japan.
Takashi ImaiNational Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Japan.
Hisahiro MatsubaraDepartment of Frontier Surgery, Chiba University Graduate School of Medicine, Chiba 260‑8670, Japan.
National Institutes for Quantum and Radiological Science and Technology · JPChiba University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fos‑related antigen 1 (Fra‑1) has roles in a variety of cell functions, including cell proliferation, differentiation, transformation, and invasiveness, and it is upregulated in various cancers. We investigated the role of Fra‑1 in cellular radioresistance using cells of two human colorectal cancer cell lines, SW620 and SW480. We found that SW620 cells are more sensitive than SW480 cells at doses greater than 6 Gy for X‑ray or 3 Gy for carbon‑ion (C‑ion) radiation. Fra‑1 expression tended to be decreased by the radiation in a dose‑dependent manner in both cell lines; of note, a greater reduction of Fra‑1 expression was observed in SW620 cells, especially at 6 Gy of X‑ray or 3 Gy of C‑ion irradiation, than in SW480 cells, indicating a possible association between Fra‑1 downregulation and cellular radiosensitivity. Knockdown of Fra‑1 in SW480 cells significantly increased the radiosensitivity to X‑ray or C‑ion radiation. On the other hand, overexpression of Fra‑1 in SW620 cells significantly enhanced the radioresistance to C‑ion radiation, suggesting a role of Fra‑1 in radioresistance. Furthermore, we found that downregulation of Fra‑1 protein in irradiated SW620 cells was regulated via protein degradation through a proteasome‑dependent pathway. Overall, our results indicate a role of Fra‑1 in radioresistance to both X‑ray and C‑ion radiation for colorectal cancer cell lines.

Indexed as

Radiation ToleranceCell Line, TumorColonic NeoplasmsFos-Related Antigen 1HumansProteasome Endopeptidase ComplexProto-Oncogene Proteins c-fosRadiation, IonizingX-RaysFos-Related Antigen 1Proteasome Endopeptidase ComplexProto-Oncogene Proteins c-fos

Identifiers

PMID29399696
PMCPMC5802033
OpenAlexW2784894429

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.