Evidence map›Paper›PMID 25663768›Full record

ArticleWorld journal of gastroenterology2015

MiR-21/RASA1 axis affects malignancy of colon cancer cells via RAS pathways.

Bo Gong, Wan-Wei Liu, Wen-Jing Nie, Dong-Feng Li, Zi-Jun Xie, Chao Liu, Yan-Hui Liu, Ping Mei, Zi-Jun Li

Open access · hybridAbstract read
In one paragraph

Article in World journal of gastroenterology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 16% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
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  10. Interplay between K-RAS and miRNAs.Trends in cancer · 2022
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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 1 institution in 1 country.

Bo GongBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Wan-Wei LiuBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Wen-Jing NieBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Dong-Feng LiBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Zi-Jun XieBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Chao LiuBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Yan-Hui LiuBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Ping MeiBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Zi-Jun LiBo Gong, Wan-Wei Liu, Zi-Jun Li, Department of Gastroenterology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China.
Guangdong General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo determine how the oncogene miR-21 regulates the RAS signaling pathways and affects colon cancer cell behaviors.

methodsRAS p21 GTPase activating protein 1 (RASA1) protein expression in six colon cancer cell lines was assessed by Western blot. Colon cancer RKO cells were chosen for transfection because they are KRAS wild type colon cancer cells whose RASA1 expression is significantly decreased. RKO cells were transfected with vectors overexpressing or down-regulating either miR-21 or RASA1. Furthermore, a luciferase reporter assay was used to determine whether RASA1 is a gene target of miR-21. Then, changes in mRNA and protein levels of RASA1, RAS-GTP, and other components of the RAS signaling pathways were assessed in transfected RKO cells by real-time quantitative reverse transcription-polymerase chain reaction, Western blot and immunoprecipitation. Finally, cell proliferation, apoptosis, invasion, and tumor formation ability were assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide dye assay, flow cytometry, transwell assay, and animal experiment, respectively.

resultsRASA1 protein levels were significantly decreased in RKO cells compared with the other 5 colon cancer cell lines, and RASA1 was confirmed as a target gene of miR-21. Interestingly, RASA1 mRNA and protein levels in pre-miR-21-LV (up-regulation of miR-21) cells were lower than those in anti-miR-21-LV (down-regulation of miR-21) cells (P < 0.05). In addition, pre-miR-21-LV or siRASA1 (down-regulation of RASA1) cells showed higher cell proliferation, reduced apoptosis, increased expression of RAS-GTP, p-AKT, Raf-1, KRAS, and p-ERK1/2, and higher invasion and tumor formation ability, compared with control, anti-miR-21-LV or pcDNA3.1-RASA1 (up-regulation of RASA1) cells (P < 0.05).

conclusionRASA1 is a target gene of miR-21, which promotes malignant behaviors of RKO cells through regulation of RASA1 expression.

Indexed as

Signal TransductionAnimalsApoptosisCaco-2 CellsCell ProliferationColonic NeoplasmsGene Expression Regulation, NeoplasticHCT116 CellsHT29 CellsHumansMaleMice, Inbred BALB CMice, NudeMicroRNAsp120 GTPase Activating ProteinProto-Oncogene ProteinsKRAS protein, humanMicroRNAsMIRN21 microRNA, humanp120 GTPase Activating ProteinProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)RASA1 protein, humanras ProteinsRNA, MessengerColon cancermiR-21RASRASA1RAS signaling pathways

Identifiers

PMID25663768
PMCPMC4316091
OpenAlexW1969779604

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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.