Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells

ObjectiveTo investigate the relationship between cyclin A2 (CCNA2) and the prognosis of colon cancer, and its possible mechanism from the perspective of immune infiltration. MethodsWe downloaded the transcriptome data of colon cancer patients from The Cancer Genome Atlas database. Clinicopathologica...

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Main Authors: Peng YANG, Ziyi QIU, Lingling WANG, Yuan HU, Zhengzhen CHEN, Meizhen ZHONG, Feiyue YU, Rongyuan QIU
Format: Article
Language:zho
Published: Magazine House of Cancer Research on Prevention and Treatment 2025-04-01
Series:Zhongliu Fangzhi Yanjiu
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Online Access:http://www.zlfzyj.com/cn/article/doi/10.3971/j.issn.1000-8578.2025.24.0947
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author Peng YANG
Ziyi QIU
Lingling WANG
Yuan HU
Zhengzhen CHEN
Meizhen ZHONG
Feiyue YU
Rongyuan QIU
author_facet Peng YANG
Ziyi QIU
Lingling WANG
Yuan HU
Zhengzhen CHEN
Meizhen ZHONG
Feiyue YU
Rongyuan QIU
author_sort Peng YANG
collection DOAJ
description ObjectiveTo investigate the relationship between cyclin A2 (CCNA2) and the prognosis of colon cancer, and its possible mechanism from the perspective of immune infiltration. MethodsWe downloaded the transcriptome data of colon cancer patients from The Cancer Genome Atlas database. Clinicopathological feature analysis and survival analysis were performed based on the expression levels of CCNA2. A total of 75 specimens of colon cancer and normal tissues were collected, and the expression level of CCNA2 was analyzed using immunohistochemical methods. Multivariate analysis was conducted to explore its relationship with clinicopathological features. Gene Set Enrichment Analysis (GSEA) was used to assess the potential molecular functions of CCNA2 in colon cancer. CIBERSORT algorithm was applied to calculate the correlation between CCNA2 and immune-cell infiltration in colon cancer. ResultsDatabase and immunohistochemical analyses indicated that CCNA2 was expressed at a significantly higher level in colon cancer tissues than normal tissues (P<0.001). The overall survival, disease-specific survival, and progression-free interval were all longer in the group with high CCNA2 expression than the group with low expression (all P<0.05). In tumor tissues, the expression level of CCNA2 decreased with increased pathological and TNM stages (P<0.05). The expression level of CCNA2 in normal tissues was consistently lower than that in colon cancer tissues across all clinical stages (all P<0.001). GSEA suggested that Wnt/β-catenin, KRAS, and other signaling pathways were enriched when CCNA2 was lowly expressed. CIBERSORT analysis revealed an increase in the infiltration of immune cells such as regulatory T cells and macrophages M0 when CCNA2 expression was low. ConclusionCCNA2 is highly expressed in colon cancer and closely associated with grade of pathology and TNM stage. It may recruit regulatory T cells through the KRAS and Wnt/β-catenin pathways, thereby reducing immune-cell infiltration and promoting colon cancer progression, leading to poor prognosis.
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spelling doaj-art-2182f96d56e94bdfa8e1b15b9b57dc242025-08-20T02:58:00ZzhoMagazine House of Cancer Research on Prevention and TreatmentZhongliu Fangzhi Yanjiu1000-85782025-04-0152430531210.3971/j.issn.1000-8578.2025.24.094720240947Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor CellsPeng YANG0Ziyi QIU1Lingling WANG2Yuan HU3Zhengzhen CHEN4Meizhen ZHONG5Feiyue YU6Rongyuan QIU7Department of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaDepartment of Gastroenterology, The 2nd Affiliated Hospital of Xinjiang Medical University, Urumqi 830018, ChinaDepartment of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaDepartment of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaDepartment of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaDepartment of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaDepartment of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaDepartment of Gastroenterology, Yueyang Hospital Affiliated to Hunan Normal University, Yueyang 414000, ChinaObjectiveTo investigate the relationship between cyclin A2 (CCNA2) and the prognosis of colon cancer, and its possible mechanism from the perspective of immune infiltration. MethodsWe downloaded the transcriptome data of colon cancer patients from The Cancer Genome Atlas database. Clinicopathological feature analysis and survival analysis were performed based on the expression levels of CCNA2. A total of 75 specimens of colon cancer and normal tissues were collected, and the expression level of CCNA2 was analyzed using immunohistochemical methods. Multivariate analysis was conducted to explore its relationship with clinicopathological features. Gene Set Enrichment Analysis (GSEA) was used to assess the potential molecular functions of CCNA2 in colon cancer. CIBERSORT algorithm was applied to calculate the correlation between CCNA2 and immune-cell infiltration in colon cancer. ResultsDatabase and immunohistochemical analyses indicated that CCNA2 was expressed at a significantly higher level in colon cancer tissues than normal tissues (P<0.001). The overall survival, disease-specific survival, and progression-free interval were all longer in the group with high CCNA2 expression than the group with low expression (all P<0.05). In tumor tissues, the expression level of CCNA2 decreased with increased pathological and TNM stages (P<0.05). The expression level of CCNA2 in normal tissues was consistently lower than that in colon cancer tissues across all clinical stages (all P<0.001). GSEA suggested that Wnt/β-catenin, KRAS, and other signaling pathways were enriched when CCNA2 was lowly expressed. CIBERSORT analysis revealed an increase in the infiltration of immune cells such as regulatory T cells and macrophages M0 when CCNA2 expression was low. ConclusionCCNA2 is highly expressed in colon cancer and closely associated with grade of pathology and TNM stage. It may recruit regulatory T cells through the KRAS and Wnt/β-catenin pathways, thereby reducing immune-cell infiltration and promoting colon cancer progression, leading to poor prognosis.http://www.zlfzyj.com/cn/article/doi/10.3971/j.issn.1000-8578.2025.24.0947ccna2colon cancertumor microenvironmentimmune infiltrationprognosisclinical featuresbioinformatics analysis
spellingShingle Peng YANG
Ziyi QIU
Lingling WANG
Yuan HU
Zhengzhen CHEN
Meizhen ZHONG
Feiyue YU
Rongyuan QIU
Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells
Zhongliu Fangzhi Yanjiu
ccna2
colon cancer
tumor microenvironment
immune infiltration
prognosis
clinical features
bioinformatics analysis
title Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells
title_full Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells
title_fullStr Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells
title_full_unstemmed Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells
title_short Effect of CCNA2 on Prognosis of Colon Cancer by Regulating Immune Microenvironment of Tumor Cells
title_sort effect of ccna2 on prognosis of colon cancer by regulating immune microenvironment of tumor cells
topic ccna2
colon cancer
tumor microenvironment
immune infiltration
prognosis
clinical features
bioinformatics analysis
url http://www.zlfzyj.com/cn/article/doi/10.3971/j.issn.1000-8578.2025.24.0947
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