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Alternative splicing (AS) is an important biological process for regulating the expression of various isoforms from a single gene and thus to promote proteome diversity. In this study, RNA-seq data from 15 pairs of esophageal squamous cell carcinoma (ESCC) tissue samples and two cell lines were analyzed. AS events with significant differences between ESCC and matched normal tissues were re-annotated to find protein coding genes or non-coding RNAs. A total of 45,439 AS events was found. Of these, 6,019 (13.25%) significant differentially AS events were identified. Exon skipping (SE) events occupied the largest proportion of abnormal splicing events. Fifteen differential splicing events with the same trends of ΔΨ values in ESCC tissues and cell lines were found. Four pathways and 20 biological processes related to cell junction and migration were significantly enriched. The upregulated splicing factor SF3B4, which regulates 92 gene splicing events, could be a potential prognostic factor of ESCC. Sashimi plotting was applied to show the differentially-spliced genes, including HNRNPC, VCL, ZNF207, KIAA1217, TPM1 and CALD1. These results suggest that cell junction- and migration-related biological processes and KEGG pathways are affected by the AS abnormalities, and aberrant splicing events can be affected by changed expression of splicing factors. In summary, we identified significant differentially AS events which might be related to the development of ESCC.
Keywords
alternative splicing, MISO, esophagus squamous cell carcinoma
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CURRENT STATUS: Published
View the published article at Cell & Bioscience.
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Editorial decision: Accept
On 26 Jan, 2021
Review #1 received
Received 12 Jan, 2021
Reviewer #1 agreed
On 05 Jan, 2021
Reviewers invited
Invitations sent on 04 Jan, 2021
Editor assigned
On 02 Jan, 2021
Submission checks complete
On 02 Jan, 2021
Editor invited
On 02 Jan, 2021
Version 1
Posted 02 Jul, 2020
No comments provided
Review #2 received
Received 03 Nov, 2020
Editorial decision: Major revision
On 03 Nov, 2020
Reviewer #3 agreed
On 11 Oct, 2020
Review #1 received
Received 14 Aug, 2020
Reviewer #2 agreed
On 05 Aug, 2020
Reviewer #1 agreed
On 03 Aug, 2020
Reviewers invited
Invitations sent on 01 Aug, 2020
Editor assigned
On 22 Jul, 2020
Editor invited
On 21 Jul, 2020
Submission checks complete
On 30 Jun, 2020
First submitted
On 27 Jun, 2020
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Subject Areas
Molecular Biology
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See the published version of this preprint at Cell & Bioscience.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Cell & Bioscience.
No community comments so far
Editorial decision: Accept
On 26 Jan, 2021
Review #1 received
Received 12 Jan, 2021
Reviewer #1 agreed
On 05 Jan, 2021
Reviewers invited
Invitations sent on 04 Jan, 2021
Editor assigned
On 02 Jan, 2021
Submission checks complete
On 02 Jan, 2021
Editor invited
On 02 Jan, 2021
Version 1
Posted 02 Jul, 2020
No comments provided
Review #2 received
Received 03 Nov, 2020
Editorial decision: Major revision
On 03 Nov, 2020
Reviewer #3 agreed
On 11 Oct, 2020
Review #1 received
Received 14 Aug, 2020
Reviewer #2 agreed
On 05 Aug, 2020
Reviewer #1 agreed
On 03 Aug, 2020
Reviewers invited
Invitations sent on 01 Aug, 2020
Editor assigned
On 22 Jul, 2020
Editor invited
On 21 Jul, 2020
Submission checks complete
On 30 Jun, 2020
First submitted
On 27 Jun, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Molecular Biology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Cell & Bioscience.
Alternative splicing (AS) is an important biological process for regulating the expression of various isoforms from a single gene and thus to promote proteome diversity. In this study, RNA-seq data from 15 pairs of esophageal squamous cell carcinoma (ESCC) tissue samples and two cell lines were analyzed. AS events with significant differences between ESCC and matched normal tissues were re-annotated to find protein coding genes or non-coding RNAs. A total of 45,439 AS events was found. Of these, 6,019 (13.25%) significant differentially AS events were identified. Exon skipping (SE) events occupied the largest proportion of abnormal splicing events. Fifteen differential splicing events with the same trends of ΔΨ values in ESCC tissues and cell lines were found. Four pathways and 20 biological processes related to cell junction and migration were significantly enriched. The upregulated splicing factor SF3B4, which regulates 92 gene splicing events, could be a potential prognostic factor of ESCC. Sashimi plotting was applied to show the differentially-spliced genes, including HNRNPC, VCL, ZNF207, KIAA1217, TPM1 and CALD1. These results suggest that cell junction- and migration-related biological processes and KEGG pathways are affected by the AS abnormalities, and aberrant splicing events can be affected by changed expression of splicing factors. In summary, we identified significant differentially AS events which might be related to the development of ESCC.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
This is a list of supplementary files associated with this preprint. Click to download.
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