Evidence map›Paper›PMID 30187868›Full record

ArticleNan fang yi ke da xue xue bao = Journal of Southern Medical University2018

[Differences in expression profiles of circular RNA between luminal breast cancer cells and normal breast cells].

Bin Xiao, Jiaxin Wen, Chaoran Zhao, Lidan Chen, Zhaohui Sun, Linhai Li

Abstract read
In one paragraph

Article in Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.5field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. Article
4 · The record

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5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Bin XiaoDepartment of Laboratory Medicine, Guangzhou General Hospital of PLA, Guangzhou 510010, China.
Jiaxin WenDepartment of Medical Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou 501515, China.
Chaoran ZhaoDepartment of Medical Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou 501515, China.
Lidan ChenDepartment of Laboratory Medicine, Guangzhou General Hospital of PLA, Guangzhou 510010, China.
Zhaohui SunDepartment of Laboratory Medicine, Guangzhou General Hospital of PLA, Guangzhou 510010, China.
Linhai LiDepartment of Laboratory Medicine, Guangzhou General Hospital of PLA, Guangzhou 510010, China.
General Hospital of Guangzhou Military Command · CNSouthern Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the differences in the expression profiles of circular RNA (circRNA) between luminal breast cancer cells and normal breast cells.

methodsTotal RNA extracted from luminal breast cancer cells MCF7 and normal breast cells MCF10A was digested with Rnase R to remove linear RNAs and enrich circRNAs. The enriched circRNAs were amplified and transcribed into fluorescent cRNAs using a random priming method, and were hybridized onto the circRNA hybridization array. The circRNA expression profiles of MCF7 and MCF10A cells were analyzed using Agilent Feature Extraction software. Quantile normalization and subsequent data processing were performed, and volcano plot filtering and hierarchical clustering were utilized to analyze the circRNA expression patterns. The expressions of 3 circRNAs with significant log fold changes were validated using qPCR.

resultsThe hybridization array data revealed significant differences in the circRNA expression profiles between MCF7 and MCF10A cells. Compared with those of MCF10A cells, the 12910 circRNAs expressed in MCF7 cells showed 5964 up-regulated, 81 consistently regulated, and 6865 down-regulated circRNAs; 343 circRNAs showed a log fold change by more than 2 folds, among which 213 circRNAs were up-regulated and 130 were down-regulated. Nine circRNAs showed differential expressions by more than 2 folds, including 8 up-regulated ones, namely hsa_circRNA_061260 (6.02 folds), hsa_circRNA_103933 (5.96 folds), hsa_circRNA_005239 (5.84 folds), hsa_circRNA_100689 (5.69 folds), hsa_circRNA_004087 (5.60 folds), hsa_circRNA_104420 (5.25 folds), hsa_circRNA_104421 (5.13 folds) and hsa_circRNA_101222 (5.03 folds); only one circRNA was down-regulated, namely hsa_circRNA_104864 (5.09 folds). The expressions of hsa_circRNA_100689, hsa_circRNA_005239 and hsa_circRNA_104864 were further validated by qPCR, which yielded consistent results with the microarray data.

conclusionsThe circRNA expression profiles differ significantly between luminal breast cancer cells and normal breast cells. These differentially expressed circRNAs may serve as potential novel targets for the diagnosis of luminal breast cancer.

Indexed as

BreastBreast NeoplasmsFemaleHumansMCF-7 CellsRNARNA, CircularRNARNA, Circularbreast cancercircRNAexpression profilesluminal type

Identifiers

PMID30187868
PMCPMC6744033
OpenAlexW3025145801

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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.