Elevated RACGAP1 Expression Enhances Malignant Potential in Lung Adenocarcinoma and Serves as a Prognostic Factor

Lai, Wei; Su, Yunshu; Li, Yangbo; Zuo, Yifan; He, Kunzhuo; Zhang, Tianyu; Peng, Dunyu; Wang, Wei

doi:10.7150/jca.96334

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J Cancer 2024; 15(13):4244-4258. doi:10.7150/jca.96334 This issue Cite

Research Paper

Elevated RACGAP1 Expression Enhances Malignant Potential in Lung Adenocarcinoma and Serves as a Prognostic Factor

Wei Lai^1*, Yunshu Su^1*, Yangbo Li¹, Yifan Zuo¹, Kunzhuo He¹, Tianyu Zhang¹, Dunyu Peng^2✉, Wei Wang^1✉

1. Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China.
2. Department of anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
* These authors equally contributed to the manuscript.
# These authors were corresponding authors.

Citation:

Lai W, Su Y, Li Y, Zuo Y, He K, Zhang T, Peng D, Wang W. Elevated RACGAP1 Expression Enhances Malignant Potential in Lung Adenocarcinoma and Serves as a Prognostic Factor. J Cancer 2024; 15(13):4244-4258. doi:10.7150/jca.96334. https://www.jcancer.org/v15p4244.htm

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Abstract

Background: While RACGAP1 is identified as a potential oncogene, its specific role in lung adenocarcinoma (LUAD) remains unclear.

Methods: First, we conducted a comprehensive analysis of the role of RACGAP1 across 33 types of cancer. Subsequently, we investigated the expression levels of RACGAP1 and its impact on prognosis using data from The Cancer Genome Atlas (TCGA) database. We utilized single-cell sequencing data to explore the tumor-related processes of RACGAP1 in LUAD and validated our findings through experimental verification. Employing a consensus clustering (CC) approach, we subdivided LUAD patients into two subtypes based on RACGAP1 cell cycle-related genes (RrCCGs). These subtypes exhibited significant differences in tumor characteristics, lymph node metastasis, and recurrence. Furthermore, we evaluated the prognostic influence of RrCCGs using univariate Cox regression and least absolute shrinkage and selection operator regression models (LASSO), successfully establishing a prognostic model.

Results: RACGAP1 is frequently overexpressed in various tumors and can impact the prognosis of patients with LUAD. Additionally, experimental evidence has demonstrated that low expression of RACGAP1 favors tumor cell apoptosis and restoration of the cell cycle, while high expression promotes invasion and metastasis. Through CC analysis of RrCCGs, patients were classified into two groups, with survival analysis revealing distinct prognoses and stages between the two groups. Furthermore, Cox and LASSO regression successfully constructed a prognostic model with robust predictive capability.

Keywords: RACGAP1, lung adenocarcinoma, prognostic model, invasion

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APA

Lai, W., Su, Y., Li, Y., Zuo, Y., He, K., Zhang, T., Peng, D., Wang, W. (2024). Elevated RACGAP1 Expression Enhances Malignant Potential in Lung Adenocarcinoma and Serves as a Prognostic Factor. Journal of Cancer, 15(13), 4244-4258. https://doi.org/10.7150/jca.96334.

ACS

Lai, W.; Su, Y.; Li, Y.; Zuo, Y.; He, K.; Zhang, T.; Peng, D.; Wang, W. Elevated RACGAP1 Expression Enhances Malignant Potential in Lung Adenocarcinoma and Serves as a Prognostic Factor. J. Cancer 2024, 15 (13), 4244-4258. DOI: 10.7150/jca.96334.

NLM

CSE

Lai W, Su Y, Li Y, Zuo Y, He K, Zhang T, Peng D, Wang W. 2024. Elevated RACGAP1 Expression Enhances Malignant Potential in Lung Adenocarcinoma and Serves as a Prognostic Factor. J Cancer. 15(13):4244-4258.

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