吉林大学学报(医学版) ›› 2026, Vol. 52 ›› Issue (3): 781-790.doi: 10.13481/j.1671-587X.20260320

• 临床研究 • 上一篇    下一篇

PAQR3在肝细胞癌中的表达及其与T淋巴细胞免疫浸润、免疫检查点基因及患者生存期关系的生物信息学分析

梁晓辉1,2(),刘文娜3,赵建伯4   

  1. 1.天津医科大学基础医学院病理教研室,天津 300070
    2.天津医科大学总医院病理科,天津 300052
    3.天津医科大学朱宪彝纪念医院麻醉科 天津市内分泌研究所 国家卫健委激素与发育重点实验室 天津市代谢性疾病重点实验室,天津 300134
    4.天津市天津医院重症医学科,天津 300211
  • 收稿日期:2025-09-08 接受日期:2025-11-03 出版日期:2026-05-28 发布日期:2026-06-08
  • 通讯作者: 梁晓辉 E-mail:liang-02@163.com
  • 作者简介:梁晓辉(1985-),女,山东省乐陵市人,实验师,医学硕士,主要从事肿瘤病理和病理技术方面的研究。
  • 基金资助:
    天津市教委科研计划项目(2022KJ196)

Bioinformatic analysis on PAQR3 expression in hepatocellular carcinoma and its correlations with T lymphocyte infiltration, immune checkpoint genes, and patient survival

Xiaohui LIANG1,2(),Wenna LIU3,Jianbo ZHAO4   

  1. 1.Department of Pathology,School of Basic Medical Sciences,Tianjin Medical University,Tianjin 300070,China
    2.Department of Pathology,General Hospital,Tianjin Medical University,Tianjin 300052,China
    3.Departmeat of Anesthesiology,Tianjin Medical University Chu Hsien-I Memorial Hospital,Tianjin Institute of Endocrinology,NHC Key Lab of Hormones and Development,Tianjin Key Lab of Metabolic Diseases,Tianjin 300134,China
    4.Department of Critical Care Medicine,Tianjin Hospital,Tianjin City,Tianjin 300211,China
  • Received:2025-09-08 Accepted:2025-11-03 Online:2026-05-28 Published:2026-06-08
  • Contact: Xiaohui LIANG E-mail:liang-02@163.com

摘要:

目的 探讨孕酮和脂联素受体3(PAQR3)在肝细胞癌(HCC)中的表达及其与免疫浸润和免疫治疗反应及患者生存之间的关联,阐明PAQR3在HCC免疫微环境中的作用及其临床意义。 方法 收集2023年1—12月在天津医科大学总医院行肝切除术的3例HCC患者HCC组织及癌旁组织样本。采用Western blotting法和免疫组织化学染色法检测各例HCC患者HCC组织及癌旁组织中PAQR3蛋白表达情况。收集癌症基因组图谱(TCGA)数据库中接受肝切除术的HCC患者的基因表达和临床数据。采用CIBERSORT和TIMER2.0等多种算法分析PAQR3表达与免疫细胞浸润的相关性;采用Spearman相关性分析评估PAQR3表达水平与免疫检查点基因[程序性细胞死亡蛋白1(PDCD1)、分化抗原274(CD274)和细胞毒性T淋巴细胞相关蛋白4 (CTLA4)]表达水平的相关性,采用Cox比例风险回归模型和Kaplan-Meier法分析PAQR3蛋白表达与患者生存的关系。 结果 Western blotting和免疫组织化学染色法,与癌旁组织比较,HCC组织中PAQR3蛋白表达水平明显升高(P<0.05)。TCGA数据库分析,与癌旁组织比较,PAQR3基因在HCC组织中表达上调(P<0.05)。相关性分析,PAQR3表达水平与HCC组织中调节性T淋巴细胞(Treqs)(rho=0.349,P<0.001)、CD8+T淋巴细胞(rho=0.268,P<0.001)、M2巨噬细胞(rho=0.435,P<0.001)和中性粒细胞(rho=0.399,P<0.001)浸润呈正相关关系。PAQR3蛋白高表达与HCC患者总生存期缩短有关联(P=0.019),而免疫浸润对HCC患者生存无关联(P>0.05)。PAQR3表达与免疫检查点相关基因PDCD1CD274CTLA4的表达呈正相关关系(P<0.05)。 结论 PAQR3在HCC组织中表达上调,其表达水平与T淋巴细胞和巨噬细胞等多种免疫细胞浸润程度、免疫检查点基因表达及患者不良预后有关,提示PAQR3可能作为HCC预后的潜在生物标志物。

关键词: 孕酮和脂联素受体3, 肝细胞癌, 免疫细胞浸润, 免疫检查点基因, 生物信息学分析

Abstract:

Objective To discuss the expression of progestin and adipoQ receptor 3 (PAQR3) in hepatocellular carcinoma (HCC) and its association with immune infiltration, immunotherapy response, and patient survival, and to clarify its role in the HCC immune microenvironment and its clinical significance. Methods The HCC tissue and adjacent tissue samples were collected from 3 cases of HCC patients who underwent hepatectomy in General Hospital of Tianjin Medical University from January to December 2023. Western blotting method and immunohistochemical staining were used to detect the expression level of PAQR3 protein in HCC tissue and adjacent tissue of each HCC patient. The gene expression and clinical data of HCC patients who underwent hepatectomy were collected from The Cancer Genome Atlas (TCGA) database. Various algorithms such as CIBERSORT and TIMER2.0 were used to analyze the correlation between PAQR3 expression and immune cell infiltration; Spearman correlation analysis was used to evaluate the correlation between PAQR3 expression level and the expression levels of immune checkpoint genes [programmed cell death protein 1 (PDCD1), cluster of differentiation 274 (CD274), and cytotoxic T-lymphocyte?associated protein 4 (CTLA4)]; Cox proportional hazards regression model and Kaplan-Meier method were used to analyze the relationship between PAQR3 protein expression and patient survival. Results The Western blotting and immunohistochemical staining results showed that compared with adjacent tissue, the expression level of PAQR3 protein in HCC tissue was significantly increased (P<0.05). The TCGA database analysis results showed that compared with adjacent tissue, the expression of PAQR3 gene in HCC tissue was up?regulated (P<0.05). The correlation analysis results showed that PAQR3 expression level was positively correlated with regulatory T cells (Tregs) (rho=0.349, P<0.001), CD8+ T lymphocytes (rho=0.268, P<0.001), M2 macrophages (rho=0.435, P<0.001), and neutrophils (rho=0.399, P<0.001) in HCC tissue. High expression of PAQR3 protein was associated with shortened overall survival of HCC patients (P=0.019), while immune infiltration was not associated with the survival of HCC patients (P>0.05). The expression of PAQR3 was positively correlated with the expressions of immune checkpoint-related genes PDCD1CD274, and CTLA4P<0.05). Conclusion The expression of PAQR3 is up-regulated in HCC tissue. Its expression level is associated with the infiltration degree of various immune cells such as T lymphocytes and macrophages, the expression of immune checkpoint genes, and poor prognosis of patients, suggesting that PAQR3 may serve as a potential prognostic biomarker for HCC.

Key words: Progestin and adipoQ receptor 3, Hepatocellular carcinoma, Immune cell infiltration, Immune checkpoint genes, Bioinformatics analysis

中图分类号: 

  • R730.2