Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma

Zeyu Zhang, Zhiming Wang, Yun Huang Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of ChinaCorrespondence: Yun HuangDepartment of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic...

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Main Authors: Zhang Z, Wang Z, Huang Y
Format: Article
Language:English
Published: Dove Medical Press 2021-08-01
Series:International Journal of General Medicine
Subjects:
Online Access:https://www.dovepress.com/comprehensive-analyses-of-the-infiltrating-immune-cell-landscape-and-i-peer-reviewed-fulltext-article-IJGM
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author Zhang Z
Wang Z
Huang Y
author_facet Zhang Z
Wang Z
Huang Y
author_sort Zhang Z
collection DOAJ
description Zeyu Zhang, Zhiming Wang, Yun Huang Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of ChinaCorrespondence: Yun HuangDepartment of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of ChinaTel +86 13787102228Email huangyun-1002@163.comBackground: Immunotherapy has gradually played a significant role in treating cancer over the past 10 years. Meanwhile, significant connections have been found between infiltrating immune cells and prognosis, as well as the development of immunotherapy in hepatocellular carcinoma (HCC). Thus, analyses of the immune cell landscape are urgently needed for the future development of immunotherapy in HCC.Methods: Expression data of HCC and normal liver tissue were searched and downloaded from The Cancer Genome Atlas. The fraction of various immune cells was estimated by CIBERSORT, which is a computational analysis tool. Comparisons of the fractions of 22 types of immune cells were performed between HCC and normal tissues, as well as survival analyses and clinical significance. xCell was used to validate the results.Results: The fractions of 12 types of immune cells, including follicular helper T (Tfh) cells, monocytes, M0, and M2 macrophages, were significantly different between tissues. In survival analyses, higher fractions of Tfh cells (P=0.037), M0 (P=0.001), and M2 macrophages (P=0.045) were associated with a poorer prognosis, and monocytes with a better prognosis (P=0.040). Furthermore, a higher fraction of M0 macrophages (P=0.001), lower fraction of monocytes (P=0.031), and M2 macrophages (P=0.018) were found as risk factors of a poorer histological grade of HCC. Only M0 macrophages showed a significant association with the clinical stage of HCC. Meanwhile, xCell showed monocytes and M2 macrophages significantly reduced in tumor tissues, which validated the results.Conclusion: Tfh cells, monocytes, M0 and M2 macrophages may play an indicator role in carcinogenesis, progression, and clinical outcomes of HCC. Our research can serve as a reference contributing to future immunotherapy strategies of HCC.Keywords: infiltrating immune cell, hepatocellular carcinoma, immunotherapy, CIBERSORT
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spelling doaj.art-cc631e02184948ce8dc83f32774a33672022-12-21T22:31:29ZengDove Medical PressInternational Journal of General Medicine1178-70742021-08-01Volume 144695470468037Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular CarcinomaZhang ZWang ZHuang YZeyu Zhang, Zhiming Wang, Yun Huang Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of ChinaCorrespondence: Yun HuangDepartment of Hepatobiliary Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of ChinaTel +86 13787102228Email huangyun-1002@163.comBackground: Immunotherapy has gradually played a significant role in treating cancer over the past 10 years. Meanwhile, significant connections have been found between infiltrating immune cells and prognosis, as well as the development of immunotherapy in hepatocellular carcinoma (HCC). Thus, analyses of the immune cell landscape are urgently needed for the future development of immunotherapy in HCC.Methods: Expression data of HCC and normal liver tissue were searched and downloaded from The Cancer Genome Atlas. The fraction of various immune cells was estimated by CIBERSORT, which is a computational analysis tool. Comparisons of the fractions of 22 types of immune cells were performed between HCC and normal tissues, as well as survival analyses and clinical significance. xCell was used to validate the results.Results: The fractions of 12 types of immune cells, including follicular helper T (Tfh) cells, monocytes, M0, and M2 macrophages, were significantly different between tissues. In survival analyses, higher fractions of Tfh cells (P=0.037), M0 (P=0.001), and M2 macrophages (P=0.045) were associated with a poorer prognosis, and monocytes with a better prognosis (P=0.040). Furthermore, a higher fraction of M0 macrophages (P=0.001), lower fraction of monocytes (P=0.031), and M2 macrophages (P=0.018) were found as risk factors of a poorer histological grade of HCC. Only M0 macrophages showed a significant association with the clinical stage of HCC. Meanwhile, xCell showed monocytes and M2 macrophages significantly reduced in tumor tissues, which validated the results.Conclusion: Tfh cells, monocytes, M0 and M2 macrophages may play an indicator role in carcinogenesis, progression, and clinical outcomes of HCC. Our research can serve as a reference contributing to future immunotherapy strategies of HCC.Keywords: infiltrating immune cell, hepatocellular carcinoma, immunotherapy, CIBERSORThttps://www.dovepress.com/comprehensive-analyses-of-the-infiltrating-immune-cell-landscape-and-i-peer-reviewed-fulltext-article-IJGMinfiltrating immune cellhepatocellular carcinomaimmunotherapycibersort
spellingShingle Zhang Z
Wang Z
Huang Y
Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma
International Journal of General Medicine
infiltrating immune cell
hepatocellular carcinoma
immunotherapy
cibersort
title Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma
title_full Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma
title_fullStr Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma
title_full_unstemmed Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma
title_short Comprehensive Analyses of the Infiltrating Immune Cell Landscape and Its Clinical Significance in Hepatocellular Carcinoma
title_sort comprehensive analyses of the infiltrating immune cell landscape and its clinical significance in hepatocellular carcinoma
topic infiltrating immune cell
hepatocellular carcinoma
immunotherapy
cibersort
url https://www.dovepress.com/comprehensive-analyses-of-the-infiltrating-immune-cell-landscape-and-i-peer-reviewed-fulltext-article-IJGM
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AT wangz comprehensiveanalysesoftheinfiltratingimmunecelllandscapeanditsclinicalsignificanceinhepatocellularcarcinoma
AT huangy comprehensiveanalysesoftheinfiltratingimmunecelllandscapeanditsclinicalsignificanceinhepatocellularcarcinoma