Bioinformatic analysis and identification of potential prognostic microRNAs and mRNAs in thyroid cancer
Jianing Tang1, Deguang Kong2, Qiuxia Cui1
1Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
Abstract:
Thyroid cancer is one of the most common endocrine malignancies. Multiple evidences revealed that a large number of microRNAs and mRNAs were abnormally expressed in thyroid cancer tissues. These microRNAs and mRNAs play important roles in tumorigenesis. In the present study, we identified 72 microRNAs and 1,766 mRNAs differentially expressed between thyroid cancer tissues and normal thyroid tissues and evaluated their prognostic values using Kaplan-Meier survival curves by log-rank test. Seven microRNAs (miR-146b, miR-184, miR-767, miR-6730, miR-6860, miR-196a-2 and miR-509-3) were associated with the overall survival. Among them, three microRNAs were linked with six differentially expressed mRNAs (miR-767 was predicted to target COL10A1, PLAG1 and PPP1R1C; miR-146b was predicted to target MMP16; miR-196a-2 was predicted to target SYT9). To identify the key genes in the protein-protein interaction network , we screened out the top 10 hub genes (NPY, NMU, KNG1, LPAR5, CCR3, SST, PPY, GABBR2, ADCY8 and SAA1) with higher degrees. Only LPAR5 was associated with the overall survival. Multivariate analysis demonstrated that miR-184, miR-146b, miR-509-3 and LPAR5 were an independent risk factors for prognosis. Our results of the present study identified a series of prognostic microRNAs and mRNAs that have the potential to be the targets for treatment of thyroid cancer.
Insights
Researchers identified key microRNAs (miRNAs) and messenger RNAs (mRNAs) linked to thyroid cancer survival. These molecules, including miR-184, miR-146b, miR-509-3, and LPAR5, show potential as prognostic markers and therapeutic targets for this endocrine malignancy.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Thyroid cancer is a common endocrine malignancy.
- Aberrant expression of microRNAs (miRNAs) and messenger RNAs (mRNAs) is implicated in thyroid cancer development.
- These genetic alterations play crucial roles in tumorigenesis.
Purpose of the Study:
- To identify differentially expressed miRNAs and mRNAs in thyroid cancer tissues compared to normal tissues.
- To evaluate the prognostic value of these identified molecules in thyroid cancer.
- To explore potential therapeutic targets for thyroid cancer treatment.
Main Methods:
- Differential expression analysis of miRNAs and mRNAs between thyroid cancer and normal tissues.
- Kaplan-Meier survival analysis and log-rank tests to assess prognostic significance.
- Prediction of miRNA-mRNA interactions and analysis of protein-protein interaction networks to identify hub genes.
Main Results:
- Identified 72 differentially expressed miRNAs and 1,766 differentially expressed mRNAs.
- Seven miRNAs (miR-146b, miR-184, miR-767, miR-6730, miR-6860, miR-196a-2, miR-509-3) were associated with overall survival.
- miR-184, miR-146b, miR-509-3, and LPAR5 were identified as independent risk factors for prognosis.
Conclusions:
- A set of prognostic miRNAs and mRNAs were identified in thyroid cancer.
- These molecules, particularly miR-184, miR-146b, miR-509-3, and LPAR5, hold potential as biomarkers for patient prognosis.
- The findings suggest these miRNAs and mRNAs could serve as novel therapeutic targets for thyroid cancer.
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