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Research
Hongli Pan
Guangxi medical university
Corresponding Author
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This work is licensed under a CC BY 4.0 License. Read Full License
Background: Colorectal cancer (CRC) is prevalent worldwide and novel diagnostic and prognostic biomarkers are needed to improve precision medicine. Circulating circular RNAs (circRNAs) are currently being considered as emerging tumor biomarkers.
Methods: Candidate circRNA was selected by integrating analysis of Gene Expression Omnibus (GEO) database using GEO2R program. The expression data of serum circ_001659 were obtained from the quantitative real-time polymerase chain reaction (qRT-PCR). Receiver operating characteristic curves were applied to evaluate the clinical applications of circ_001659. Finally, biological functions and potential mechanisms of circ_001659 in tumor progression were investigated in CRC progression.
Results: The results showed that the diagnostic performance of serum circ_001659 were excellent for CRC detection. The predictive values and likelihood ratios were satisfactory for the diagnosis of CRC, including patients in early-stage disease or patients with carcinoembryonic antigen (CEA)-negative status. Serum levels of circ_001659 declined significantly 3 months after surgery in both preoperative CEA-positive and CEA-negative patients. Functionally, circ_001659 influenced tumor cell metastasis via regulating epithelial-mesenchymal transition (EMT) and cytoskeleton organization.
Conclusion: Our findings demonstrate that circ_001659 could be a useful serum biomarker for CRC diagnosis and prognosis. Targeting circ_001659 and its pathway may be meaningful for treating patients with CRC.
Keywords
circular RNA, biomarker, early diagnosis, prognosis prediction, epithelial-mesenchymal transition, cytoskeleton, colorectal cancer
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This is a list of supplementary files associated with this preprint. Click to download.
- Additionalfile1.xlsx
Table S1. Clinical characteristics of patients and controls.
- Additionalfile2.xlsx
Table S2. Differentially regulated circRNAs in blood of CRC patients and healthy controls from two well-established cohorts.
- Additionalfile3.xlsx
Table S3. Sequence of primers for real-time PCR.
- Additionalfile4.xlsx
Table S4. Statistical results of 26 upregulated circRNAs in 20 pairs of serum samples from screen cohort.
- Additionalfile5.xlsx
Table S5. Levels of serum circ_001659 after surgical resection of CRC.
- Additionalfile6.xlsx
Table S6. Intersection of gene sets regulated by circ_001659 in SW620 and LS174T cells.
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This is a preprint. It has not completed peer review.
Research
Hongli Pan
Guangxi medical university
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 28 Dec, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: Colorectal cancer (CRC) is prevalent worldwide and novel diagnostic and prognostic biomarkers are needed to improve precision medicine. Circulating circular RNAs (circRNAs) are currently being considered as emerging tumor biomarkers.
Methods: Candidate circRNA was selected by integrating analysis of Gene Expression Omnibus (GEO) database using GEO2R program. The expression data of serum circ_001659 were obtained from the quantitative real-time polymerase chain reaction (qRT-PCR). Receiver operating characteristic curves were applied to evaluate the clinical applications of circ_001659. Finally, biological functions and potential mechanisms of circ_001659 in tumor progression were investigated in CRC progression.
Results: The results showed that the diagnostic performance of serum circ_001659 were excellent for CRC detection. The predictive values and likelihood ratios were satisfactory for the diagnosis of CRC, including patients in early-stage disease or patients with carcinoembryonic antigen (CEA)-negative status. Serum levels of circ_001659 declined significantly 3 months after surgery in both preoperative CEA-positive and CEA-negative patients. Functionally, circ_001659 influenced tumor cell metastasis via regulating epithelial-mesenchymal transition (EMT) and cytoskeleton organization.
Conclusion: Our findings demonstrate that circ_001659 could be a useful serum biomarker for CRC diagnosis and prognosis. Targeting circ_001659 and its pathway may be meaningful for treating patients with CRC.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
This is a list of supplementary files associated with this preprint. Click to download.
- Additionalfile1.xlsx
Table S1. Clinical characteristics of patients and controls.
- Additionalfile2.xlsx
Table S2. Differentially regulated circRNAs in blood of CRC patients and healthy controls from two well-established cohorts.
- Additionalfile3.xlsx
Table S3. Sequence of primers for real-time PCR.
- Additionalfile4.xlsx
Table S4. Statistical results of 26 upregulated circRNAs in 20 pairs of serum samples from screen cohort.
- Additionalfile5.xlsx
Table S5. Levels of serum circ_001659 after surgical resection of CRC.
- Additionalfile6.xlsx
Table S6. Intersection of gene sets regulated by circ_001659 in SW620 and LS174T cells.
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