Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC

Davide De Battista,1 Fausto Zamboni,2 Hannah Gerstein,1 Shinya Sato,1 Tovah E Markowitz,3,4 Justin Lack,3,4 Ronald E Engle,1 Patrizia Farci1 1Hepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesd...

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Autores principales:	De Battista D, Zamboni F, Gerstein H, Sato S, Markowitz TE, Lack J, Engle RE, Farci P
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2021
Materias:	hepatocellular carcinoma hepatitis c virus hepatitis b virus rna-sequencing molecular signature immune landscape Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282
Acceso en línea:	https://doaj.org/article/a7a87535b8604d668cd9da74863b658a
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spelling	oai:doaj.org-article:a7a87535b8604d668cd9da74863b658a2021-11-21T19:08:51ZMolecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC2253-5969https://doaj.org/article/a7a87535b8604d668cd9da74863b658a2021-11-01T00:00:00Zhttps://www.dovepress.com/molecular-signature-and-immune-landscape-of-hcv-associated-hepatocellu-peer-reviewed-fulltext-article-JHChttps://doaj.org/toc/2253-5969Davide De Battista,1 Fausto Zamboni,2 Hannah Gerstein,1 Shinya Sato,1 Tovah E Markowitz,3,4 Justin Lack,3,4 Ronald E Engle,1 Patrizia Farci1 1Hepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA; 2Liver Transplantation Center, Azienda Ospedaliera Brotzu, Cagliari, Italy; 3NIAID Collaborative Bioinformatics Resource, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA; 4Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research Sponsored by the National Cancer Institute, Frederick, MD, 21702, USACorrespondence: Patrizia FarciHepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USATel +1 240-669-5921Fax +1 301-402-0524Email pfarci@niaid.nih.govIntroduction: HCC is the third leading cause of cancer-related death worldwide, with chronic viral hepatitis accounting for more than 70% of the cases. Therapeutic options are limited and ineffective. The increasing use of immune-based therapies in solid tumors highlights the need to expand our knowledge on the immunologic microenvironment of HCC.Methods: Access to liver samples from 20 well-characterized patients with HCC associated with HCV (n = 9) or HBV (n = 11) gave us the opportunity to study the immunologic landscape in these tumors. For each patient, RNA-sequencing was performed on the tumor and surrounding nontumorous tissue.Results: We found that both HCV- and HBV-HCC are associated with a predominance of downregulated genes (74% and 67%, respectively). Analysis of the immune landscape using a curated gene list showed 216 of 2481 (9%) immune genes in HCV-HCC and 164 of 2560 (6%) in HBV-HCC. However, only 8 immune genes (4%) were upregulated in HCV-HCC and 27 (16.5%) in HBV-HCC. HCV-HCC was characterized by an enrichment of downregulated genes related to T-cell activation and oxidative stress. The dramatic downregulation of immune genes related to T-cell activation in HCV-HCC prompted us to perform an extensive immunohistochemistry analysis on paraffin-embedded liver specimen. Interestingly, we found a significant reduction of immune-cell infiltration (CD3, CD8 and CD20 positive cells) within the tumor. Moreover, we observed that HCV-HCC is characterized by an enrichment of M2-like CD68-positive cells. These data are consistent with the dramatic downregulation of immune-cell infiltration seen in HCV-HCC. Conversely, HBV-HCC was characterized by upregulation of genes related to monocyte/macrophage activation and cell cycle control, and downregulation of genes involved in various cell metabolisms.Conclusion: This study demonstrates a distinctive molecular signature and immune landscape in HCC of different viral etiology, which could provide new insights into pathogenesis and lead to the development of novel immune-based therapies.Keywords: hepatocellular carcinoma, hepatitis C virus, hepatitis B virus, RNA-sequencing, molecular signature, immune landscapeDe Battista DZamboni FGerstein HSato SMarkowitz TELack JEngle REFarci PDove Medical Pressarticlehepatocellular carcinomahepatitis c virushepatitis b virusrna-sequencingmolecular signatureimmune landscapeNeoplasms. Tumors. Oncology. Including cancer and carcinogensRC254-282ENJournal of Hepatocellular Carcinoma, Vol Volume 8, Pp 1399-1413 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hepatocellular carcinoma hepatitis c virus hepatitis b virus rna-sequencing molecular signature immune landscape Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282
spellingShingle	hepatocellular carcinoma hepatitis c virus hepatitis b virus rna-sequencing molecular signature immune landscape Neoplasms. Tumors. Oncology. Including cancer and carcinogens RC254-282 De Battista D Zamboni F Gerstein H Sato S Markowitz TE Lack J Engle RE Farci P Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC
description	Davide De Battista,1 Fausto Zamboni,2 Hannah Gerstein,1 Shinya Sato,1 Tovah E Markowitz,3,4 Justin Lack,3,4 Ronald E Engle,1 Patrizia Farci1 1Hepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA; 2Liver Transplantation Center, Azienda Ospedaliera Brotzu, Cagliari, Italy; 3NIAID Collaborative Bioinformatics Resource, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA; 4Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research Sponsored by the National Cancer Institute, Frederick, MD, 21702, USACorrespondence: Patrizia FarciHepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USATel +1 240-669-5921Fax +1 301-402-0524Email pfarci@niaid.nih.govIntroduction: HCC is the third leading cause of cancer-related death worldwide, with chronic viral hepatitis accounting for more than 70% of the cases. Therapeutic options are limited and ineffective. The increasing use of immune-based therapies in solid tumors highlights the need to expand our knowledge on the immunologic microenvironment of HCC.Methods: Access to liver samples from 20 well-characterized patients with HCC associated with HCV (n = 9) or HBV (n = 11) gave us the opportunity to study the immunologic landscape in these tumors. For each patient, RNA-sequencing was performed on the tumor and surrounding nontumorous tissue.Results: We found that both HCV- and HBV-HCC are associated with a predominance of downregulated genes (74% and 67%, respectively). Analysis of the immune landscape using a curated gene list showed 216 of 2481 (9%) immune genes in HCV-HCC and 164 of 2560 (6%) in HBV-HCC. However, only 8 immune genes (4%) were upregulated in HCV-HCC and 27 (16.5%) in HBV-HCC. HCV-HCC was characterized by an enrichment of downregulated genes related to T-cell activation and oxidative stress. The dramatic downregulation of immune genes related to T-cell activation in HCV-HCC prompted us to perform an extensive immunohistochemistry analysis on paraffin-embedded liver specimen. Interestingly, we found a significant reduction of immune-cell infiltration (CD3, CD8 and CD20 positive cells) within the tumor. Moreover, we observed that HCV-HCC is characterized by an enrichment of M2-like CD68-positive cells. These data are consistent with the dramatic downregulation of immune-cell infiltration seen in HCV-HCC. Conversely, HBV-HCC was characterized by upregulation of genes related to monocyte/macrophage activation and cell cycle control, and downregulation of genes involved in various cell metabolisms.Conclusion: This study demonstrates a distinctive molecular signature and immune landscape in HCC of different viral etiology, which could provide new insights into pathogenesis and lead to the development of novel immune-based therapies.Keywords: hepatocellular carcinoma, hepatitis C virus, hepatitis B virus, RNA-sequencing, molecular signature, immune landscape
format	article
author	De Battista D Zamboni F Gerstein H Sato S Markowitz TE Lack J Engle RE Farci P
author_facet	De Battista D Zamboni F Gerstein H Sato S Markowitz TE Lack J Engle RE Farci P
author_sort	De Battista D
title	Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC
title_short	Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC
title_full	Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC
title_fullStr	Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC
title_full_unstemmed	Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC
title_sort	molecular signature and immune landscape of hcv-associated hepatocellular carcinoma (hcc): differences and similarities with hbv-hcc
publisher	Dove Medical Press
publishDate	2021
url	https://doaj.org/article/a7a87535b8604d668cd9da74863b658a
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Molecular Signature and Immune Landscape of HCV-Associated Hepatocellular Carcinoma (HCC): Differences and Similarities with HBV-HCC

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