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Establishing a metastasis-related diagnosis and prognosis model for lung adenocarcinoma through CRISPR library and TCGA database

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Abstract

Purpose

Existing biomarkers for diagnosing and predicting metastasis of lung adenocarcinoma (LUAD) may not meet the demands of clinical practice. Risk prediction models with multiple markers may provide better prognostic factors for accurate diagnosis and prediction of metastatic LUAD.

Methods

An animal model of LUAD metastasis was constructed using CRISPR technology, and genes related to LUAD metastasis were screened by mRNA sequencing of normal and metastatic tissues. The immune characteristics of different subtypes were analyzed, and differentially expressed genes were subjected to survival and Cox regression analyses to identify the specific genes involved in metastasis for constructing a prediction model. The biological function of RFLNA was verified by analyzing CCK-8, migration, invasion, and apoptosis in LUAD cell lines.

Results

We identified 108 differentially expressed genes related to metastasis and classified LUAD samples into two subtypes according to gene expression. Subsequently, a prediction model composed of eight metastasis-related genes (RHOBTB2, KIAA1524, CENPW, DEPDC1, RFLNA, COL7A1, MMP12, and HOXB9) was constructed. The areas under the curves of the logistic regression and neural network were 0.946 and 0.856, respectively. The model effectively classified patients into low- and high-risk groups. The low-risk group had a better prognosis in both the training and test cohorts, indicating that the prediction model had good diagnostic and predictive power. Upregulation of RFLNA successfully promoted cell proliferation, migration, invasion, and attenuated apoptosis, suggesting that RFLNA plays a role in promoting LUAD development and metastasis.

Conclusion

The model has important diagnostic and prognostic value for metastatic LUAD and may be useful in clinical applications.

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Data availability statement

Data relevant to this study are available from the corresponding authors upon reasonable request.

References

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Funding

This work was supported by Wenzhou Municipal Science and Technology Bureau of China (Y20220127, Y20190461), Zhejiang Provincial Natural Science Foundation of China (LQ22H200003, LY19H200002), the Fundamental Scientific Research Fees of Wenzhou Medical University (KYYW2021026), the Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province (2022E10022), the National Natural Science Foundation of China (81672088), and Zhejiang Provincial Research Center for Cancer Intelligent Diagnosis and Molecular Technology (JBZX-202003). All the authors declare that they have no further financial or non-financial conflicts of interest in this research.

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Authors and Affiliations

Authors

Contributions

YW, JP, and JC conceived and designed the study. FS, LL, CL, and XH performed the experiments and analyzed the data. YY, MZ, and KH prepared figures and/or tables. FS and YW drafted and revised of the manuscript. All authors contributed to the article and approved the submitted version.

Corresponding authors

Correspondence to Jingye Pan, Jie Chen or Yumin Wang.

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Conflict of interest

The authors have no relevant financial or non-financial interests to disclose.

Ethics approval and consent to participate

All animal procedures were approved by the Experimental Animal Ethics Committee of the First Affiliated Hospital of Wenzhou Medical University (WYYY-AEC-2021–310).

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All authors were read the final version and agreed on the publication.

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Shao, F., Ling, L., Li, C. et al. Establishing a metastasis-related diagnosis and prognosis model for lung adenocarcinoma through CRISPR library and TCGA database. J Cancer Res Clin Oncol 149, 885–899 (2023). https://doi.org/10.1007/s00432-022-04495-z

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  • DOI: https://doi.org/10.1007/s00432-022-04495-z

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