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Lidenge SJ, Yalcin D, Bennett SJ, Ngalamika O, Kweyamba BB, Mwita CJ, Tso FY, Mwaiselage J, West JT, Wood C. Viral Epitope Scanning Reveals Correlation between Seasonal HCoVs and SARS-CoV-2 Antibody Responses among Cancer and Non-Cancer Patients. Viruses 2024; 16:448. [PMID: 38543814 PMCID: PMC10975915 DOI: 10.3390/v16030448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/23/2024] [Accepted: 03/09/2024] [Indexed: 04/01/2024] Open
Abstract
Seasonal coronaviruses (HCoVs) are known to contribute to cross-reactive antibody (Ab) responses against SARS-CoV-2. While these responses are predictable due to the high homology between SARS-CoV-2 and other CoVs, the impact of these responses on susceptibility to SARS-CoV-2 infection in cancer patients is unclear. To investigate the influence of prior HCoV infection on anti-SARS-CoV-2 Ab responses among COVID-19 asymptomatic individuals with cancer and controls without cancers, we utilized the VirScan technology in which phage immunoprecipitation and sequencing (PhIP-seq) of longitudinal plasma samples was performed to investigate high-resolution (i.e., epitope level) humoral CoV responses. Despite testing positive for anti-SARS-CoV-2 Ab in the plasma, a majority of the participants were asymptomatic for COVID-19 with no prior history of COVID-19 diagnosis. Although the magnitudes of the anti-SARS-CoV-2 Ab responses were lower in individuals with Kaposi sarcoma (KS) compared to non-KS cancer individuals and those without cancer, the HCoV Ab repertoire was similar between individuals with and without cancer independent of age, sex, HIV status, and chemotherapy. The magnitudes of the anti-spike HCoV responses showed a strong positive association with those of the anti-SARS-CoV-2 spike in cancer patients, and only a weak association in non-cancer patients, suggesting that prior infection with HCoVs might play a role in limiting SARS-CoV-2 infection and COVID-19 disease severity.
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Affiliation(s)
- Salum J. Lidenge
- Department of Clinical Research, Training, and Consultancy, Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (B.B.K.); (J.M.)
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam P.O. Box 65001, Tanzania
| | - Dicle Yalcin
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.Y.); (S.J.B.); (F.Y.T.); (J.T.W.)
| | - Sydney J. Bennett
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.Y.); (S.J.B.); (F.Y.T.); (J.T.W.)
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68516, USA
| | - Owen Ngalamika
- Dermatology and Venereology Division, University Teaching Hospital, University of Zambia School of Medicine, Lusaka P.O. Box 50001, Zambia;
| | - Brenda B. Kweyamba
- Department of Clinical Research, Training, and Consultancy, Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (B.B.K.); (J.M.)
| | - Chacha J. Mwita
- Department of Clinical Research, Training, and Consultancy, Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (B.B.K.); (J.M.)
| | - For Yue Tso
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.Y.); (S.J.B.); (F.Y.T.); (J.T.W.)
| | - Julius Mwaiselage
- Department of Clinical Research, Training, and Consultancy, Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (B.B.K.); (J.M.)
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam P.O. Box 65001, Tanzania
| | - John T. West
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.Y.); (S.J.B.); (F.Y.T.); (J.T.W.)
| | - Charles Wood
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.Y.); (S.J.B.); (F.Y.T.); (J.T.W.)
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68516, USA
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Julius P, Kang G, Siyumbwa S, Musumali J, Tso FY, Ngalamika O, Kaile T, Maate F, Moonga P, West JT, Angeletti P, Wood C. Co-infection and co-localization of Kaposi sarcoma-associated herpesvirus and Epstein-Barr virus in HIV-associated Kaposi sarcoma: a case report. Front Cell Infect Microbiol 2023; 13:1270935. [PMID: 37928187 PMCID: PMC10623342 DOI: 10.3389/fcimb.2023.1270935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/04/2023] [Indexed: 11/07/2023] Open
Abstract
Kaposi sarcoma (KS), a multifocal vascular neoplasm frequently observed in HIV-positive individuals, primarily affects the skin, mucous membranes, visceral organs, and lymph nodes. KS is associated primarily with Kaposi sarcoma-associated herpesvirus (KSHV) infection. In this case report, we present a rare occurrence of co-infection and co-localization of KSHV and Epstein-Barr virus (EBV) in KS arising from the conjunctiva, which, to our knowledge, has not been reported previously. Immunohistochemistry (IHC), DNA polymerase chain reaction (PCR), and EBV-encoded RNA in situ hybridization (EBER-ISH) were utilized to demonstrate the presence of KSHV and EBV infection in the ocular KS lesion. Nearly all KSHV-positive cells displayed co-infection with EBV. In addition, the KS lesion revealed co-localization of KSHV Latency-Associated Nuclear Antigen (LANA) and EBV Epstein Barr virus Nuclear Antigen-1 (EBNA1) by multi-colored immunofluorescence staining with different anti-EBNA1 antibodies, indicating the possibility of interactions between these two gamma herpesviruses within the same lesion. Additional study is needed to determine whether EBV co-infection in KS is a common or an opportunistic event that might contribute to KS development and progression.
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Affiliation(s)
- Peter Julius
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Guobin Kang
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Stepfanie Siyumbwa
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Jane Musumali
- University Teaching Hospitals, Eye Hospital, Ministry of Health, Lusaka, Zambia
| | - For Yue Tso
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Owen Ngalamika
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Trevor Kaile
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Fred Maate
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Phyllis Moonga
- University Teaching Hospitals, Eye Hospital, Ministry of Health, Lusaka, Zambia
| | - John T. West
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Peter Angeletti
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Charles Wood
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
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Vladimirova O, Soldan S, Su C, Kossenkov A, Ngalamika O, Tso FY, West JT, Wood C, Lieberman PM. Elevated iNOS and 3'-nitrotyrosine in Kaposi's Sarcoma tumors and mouse model. Tumour Virus Res 2023; 15:200259. [PMID: 36863485 PMCID: PMC10009278 DOI: 10.1016/j.tvr.2023.200259] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 01/24/2023] [Accepted: 02/20/2023] [Indexed: 03/04/2023] Open
Abstract
Kaposi's Sarcoma (KS) is a heterogenous, multifocal vascular malignancy caused by the human herpesvirus 8 (HHV8), also known as Kaposi's Sarcoma-Associated Herpesvirus (KSHV). Here, we show that KS lesions express iNOS/NOS2 broadly throughout KS lesions, with enrichment in LANA positive spindle cells. The iNOS byproduct 3-nitrotyrosine is also enriched in LANA positive tumor cells and colocalizes with a fraction of LANA-nuclear bodies. We show that iNOS is highly expressed in the L1T3/mSLK tumor model of KS. iNOS expression correlated with KSHV lytic cycle gene expression, which was elevated in late-stage tumors (>4 weeks) but to a lesser degree in early stage (1 week) xenografts. Further, we show that L1T3/mSLK tumor growth is sensitive to an inhibitor of nitric oxide, L-NMMA. L-NMMA treatment reduced KSHV gene expression and perturbed cellular gene pathways relating to oxidative phosphorylation and mitochondrial dysfunction. These finding suggest that iNOS is expressed in KSHV infected endothelial-transformed tumor cells in KS, that iNOS expression depends on tumor microenvironment stress conditions, and that iNOS enzymatic activity contributes to KS tumor growth.
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Affiliation(s)
| | | | - Chenhe Su
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Owen Ngalamika
- Dermatology and Venereology Section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka, P.O. Box 50110, Zambia
| | - For Yue Tso
- Department of Interdisciplinary Oncology, Stanley S Scott Cancer Center, State University Health Sciences Center, New Orleans, LA, USA
| | - John T West
- Department of Interdisciplinary Oncology, Stanley S Scott Cancer Center, State University Health Sciences Center, New Orleans, LA, USA
| | - Charles Wood
- Department of Interdisciplinary Oncology, Stanley S Scott Cancer Center, State University Health Sciences Center, New Orleans, LA, USA
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Yalcin D, Bennett SJ, Sheehan J, Trauth AJ, Tso FY, West JT, Hagensee ME, Ramsay AJ, Wood C. Longitudinal Variations in Antibody Responses against SARS-CoV-2 Spike Epitopes upon Serial Vaccinations. Int J Mol Sci 2023; 24:ijms24087292. [PMID: 37108460 PMCID: PMC10138620 DOI: 10.3390/ijms24087292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/08/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
The COVID-19 pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) impacted healthcare, the workforce, and worldwide socioeconomics. Multi-dose mono- or bivalent mRNA vaccine regimens have shown high efficacy in protection against SARS-CoV-2 and its emerging variants with varying degrees of efficacy. Amino acid changes, primarily in the receptor-binding domain (RBD), result in selection for viral infectivity, disease severity, and immune evasion. Therefore, many studies have centered around neutralizing antibodies that target the RBD and their generation achieved through infection or vaccination. Here, we conducted a unique longitudinal study, analyzing the effects of a three-dose mRNA vaccine regimen exclusively using the monovalent BNT162b2 (Pfizer/BioNTech) vaccine, systematically administered to nine previously uninfected (naïve) individuals. We compare changes in humoral antibody responses across the entire SARS-CoV-2 spike glycoprotein (S) using a high-throughput phage display technique (VirScan). Our data demonstrate that two doses of vaccination alone can achieve the broadest and highest magnitudes of anti-S response. Moreover, we present evidence of novel highly boosted non-RBD epitopes that strongly correlate with neutralization and recapitulate independent findings. These vaccine-boosted epitopes could facilitate multi-valent vaccine development and drug discovery.
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Affiliation(s)
- Dicle Yalcin
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Sydney J Bennett
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68516, USA
| | - Jared Sheehan
- Department of Microbiology, Immunology and Parasitology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Amber J Trauth
- Departments of Medicine, Section of Infectious Diseases, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - For Yue Tso
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - John T West
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Michael E Hagensee
- Departments of Medicine, Section of Infectious Diseases, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Alistair J Ramsay
- Department of Microbiology, Immunology and Parasitology, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - Charles Wood
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68516, USA
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Ngalamika O, Lidenge SJ, Mukasine MC, Kawimbe M, Kamanzi P, Ngowi JR, Mwaiselage J, Tso FY. SARS-CoV-2-specific T cell and humoral immunity in individuals with and without HIV in an African population: a prospective cohort study. Int J Infect Dis 2023; 127:106-115. [PMID: 36516914 PMCID: PMC9741763 DOI: 10.1016/j.ijid.2022.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/07/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES To longitudinally compare SARS-CoV-2-specific T cell and humoral immune responses between convalescent individuals who are HIV-positive (HIV+) and HIV-negative (HIV-). METHODS We conducted enzyme-linked immunospots to determine the SARS-CoV-2-specific T cell responses to spike and nucleocapsid, membrane protein, and other open reading frame proteins (NMO), whereas an immunofluorescence assay was used to determine the humoral responses. Participants were sampled at baseline and after 8 weeks of follow-up. RESULTS Individuals who are HIV- had significantly more T cell responses to NMO and spike than individuals who are HIV+ at baseline, P-value = 0.026 and P-value = 0.029, respectively. At follow-up, T cell responses to NMO and spike in individuals who are HIV+ increased to levels comparable with individuals who are HIV-. T cell responses in the HIV- group significantly decreased from baseline levels at the time of follow-up (spike [P-value = 0.011] and NMO [P-value = 0.014]). A significantly higher number of individuals in the HIV+ group had an increase in T cell responses to spike (P-value = 0.01) and NMO (P-value = 0.026) during the follow-up period than the HIV- group. Antispike and antinucleocapsid antibody titers were high (1: 1280) and not significantly different between individuals who were HIV- and HIV+ at baseline. A significant decrease in antinucleocapsid titer was observed in the HIV- (P-value = 0.0001) and the HIV+ (P-value = 0.001) groups at follow-up. SARS-CoV-2 vaccination was more effective in boosting the T cell than antibody responses shortly after infection. CONCLUSION There is an impairment of SARS-CoV-2-specific T cell immunity in individuals who are HIV+ with advanced immunosuppression. SARS-CoV-2-specific T cell immune responses may be delayed in individuals who are HIV+, even in those on antiretroviral therapy. There is no difference in SARS-CoV-2-specific humoral immunity between individuals who are HIV- and HIV+.
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Affiliation(s)
- Owen Ngalamika
- Dermatology and Venereology Division, Department of Medicine, University Teaching Hospital, University of Zambia School of Medicine, Lusaka, Zambia,HHV-8 Molecular Virology Laboratory, University Teaching Hospital, Lusaka, Zambia,Corresponding author: Tel: +260961406928
| | - Salum J. Lidenge
- Ocean Road Cancer Institute, Dar-es-Salam, Tanzania,Muhimbili University of Health and Allied Sciences, Dar-es-Salam, Tanzania
| | | | - Musonda Kawimbe
- HHV-8 Molecular Virology Laboratory, University Teaching Hospital, Lusaka, Zambia
| | - Patrick Kamanzi
- Dermatology and Venereology Division, Department of Medicine, University Teaching Hospital, University of Zambia School of Medicine, Lusaka, Zambia
| | | | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar-es-Salam, Tanzania,Muhimbili University of Health and Allied Sciences, Dar-es-Salam, Tanzania
| | - For Yue Tso
- Department of Interdisciplinary Oncology, and The Stanley S Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, USA
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Tso FY, Lidenge SJ, Ngowi JR, Peña PB, Clegg AA, Ngalamika O, Mwita CJ, Mwaiselage J, Wood C. Lower SARS-CoV-2 Seroprevalence among Cancer Patients in Sub-Saharan Africa. J Clin Med 2022; 11:jcm11154428. [PMID: 35956046 PMCID: PMC9369079 DOI: 10.3390/jcm11154428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Despite the high COVID-19 morbidity and mortality rates across the world, the reported rates in sub-Saharan Africa (SSA), which has a higher burden of other infectious diseases and overwhelmed healthcare systems, remain relatively low. This study aims to better understand the potential factors that contribute to this phenomenon, especially among cancer patients who are considered as a high-risk group for developing severe COVID-19. METHODS Plasma samples collected during the COVID-19 pandemic from SARS-CoV-2 unvaccinated cancer and potential blood donor populations were analyzed for SARS-CoV-2 (spike and nucleocapsid proteins) antibodies by an immunofluorescence assay. The relationships between SARS-CoV-2 seroprevalences and study variables were determined using a logistic regression analysis. RESULTS High seroprevalence against the SARS-CoV-2 spike and nucleocapsid proteins were found among the SARS-CoV-2 unvaccinated COVID-19 pandemic populations in SSA. However, the cancer patients demonstrated a lower seroprevalence compared to potential blood donors. There was also an association between mild COVID-19 symptoms with prior tuberculosis vaccination among cancer patients. CONCLUSION Cancer patients in SSA tend to have a relatively lower SARS-CoV-2 seroprevalence compared to potential blood donors recruited from the same geographic locations during the COVID-19 pandemic. More study is required to determine its cause and potential impact on SARS-CoV-2 vaccination among cancer patients.
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Affiliation(s)
- For Yue Tso
- Department of Interdisciplinary Oncology, and the Stanley S Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA;
| | - Salum J. Lidenge
- Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (J.R.N.); (C.J.M.); (J.M.)
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam P.O. Box 65001, Tanzania
| | - John R. Ngowi
- Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (J.R.N.); (C.J.M.); (J.M.)
| | - Phoebe B. Peña
- Nebraska Center for Virology, Lincoln, NE 68583, USA; (P.B.P.); (A.A.C.)
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Ashley A. Clegg
- Nebraska Center for Virology, Lincoln, NE 68583, USA; (P.B.P.); (A.A.C.)
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Owen Ngalamika
- Dermatology and Venereology Section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka P.O. Box 50110, Zambia;
| | - Chacha J. Mwita
- Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (J.R.N.); (C.J.M.); (J.M.)
| | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar es Salaam P.O. Box 3592, Tanzania; (S.J.L.); (J.R.N.); (C.J.M.); (J.M.)
- Department of Clinical Oncology, Muhimbili University of Health and Allied Sciences, Dar es Salaam P.O. Box 65001, Tanzania
| | - Charles Wood
- Department of Interdisciplinary Oncology, and the Stanley S Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA;
- Correspondence:
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Tso FY, Lidenge SJ, Poppe LK, Peña PB, Privatt SR, Bennett SJ, Ngowi JR, Mwaiselage J, Belshan M, Siedlik JA, Raine MA, Ochoa JB, Garcia-Diaz J, Nossaman B, Buckner L, Roberts WM, Dean MJ, Ochoa AC, West JT, Wood C. Presence of antibody-dependent cellular cytotoxicity (ADCC) against SARS-CoV-2 in COVID-19 plasma. PLoS One 2021; 16:e0247640. [PMID: 33661923 PMCID: PMC7932539 DOI: 10.1371/journal.pone.0247640] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/10/2021] [Indexed: 12/28/2022] Open
Abstract
Background Neutralizing-antibody (nAb) is the major focus of most ongoing COVID-19 vaccine trials. However, nAb response against SARS-CoV-2, when present, decays rapidly. Given the myriad roles of antibodies in immune responses, it is possible that antibodies could also mediate protection against SARS-CoV-2 via effector mechanisms such as antibody-dependent cellular cytotoxicity (ADCC), which we sought to explore here. Methods Plasma of 3 uninfected controls and 20 subjects exposed to, or recovering from, SARS-CoV-2 infection were collected from U.S. and sub-Saharan Africa. Immunofluorescence assay was used to detect the presence of SARS-CoV-2 specific IgG antibodies in the plasma samples. SARS-CoV-2 specific neutralizing capability of these plasmas was assessed with SARS-CoV-2 spike pseudotyped virus. ADCC activity was assessed with a calcein release assay. Results SARS-CoV-2 specific IgG antibodies were detected in all COVID-19 subjects studied. All but three COVID-19 subjects contained nAb at high potency (>80% neutralization). Plasma from 19/20 of COVID-19 subjects also demonstrated strong ADCC activity against SARS-CoV-2 spike glycoprotein, including two individuals without nAb against SARS-CoV-2. Conclusion Both neutralizing and non-neutralizing COVID-19 plasmas can mediate ADCC. Our findings argue that evaluation of potential vaccines against SARS-CoV-2 should include investigation of the magnitude and durability of ADCC, in addition to nAb.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Salum J. Lidenge
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Lisa K. Poppe
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Phoebe B. Peña
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Sara R. Privatt
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Sydney J. Bennett
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - John R. Ngowi
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Michael Belshan
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- Department of Medical Microbiology & Immunology, Creighton University, Omaha, NE, United States of America
| | - Jacob A. Siedlik
- Department of Exercise Science and Pre-Health Professions, Creighton University, Omaha, NE, United States of America
| | - Morgan A. Raine
- Department of Medical Microbiology & Immunology, Creighton University, Omaha, NE, United States of America
| | - Juan B. Ochoa
- Department of Surgery, Ochsner Medical Center, New Orleans, LA, United States of America
| | - Julia Garcia-Diaz
- Department of Internal Medicine Ochsner Medical Center, New Orleans, LA, United States of America
| | - Bobby Nossaman
- Department of Internal Medicine Ochsner Medical Center, New Orleans, LA, United States of America
| | - Lyndsey Buckner
- Department of Internal Medicine Ochsner Medical Center, New Orleans, LA, United States of America
| | - W. Mark Roberts
- Department of Internal Medicine Ochsner Medical Center, New Orleans, LA, United States of America
| | - Matthew J. Dean
- Louisiana State University Cancer Center, New Orleans, LA, United States of America
| | - Augusto C. Ochoa
- Louisiana State University Cancer Center, New Orleans, LA, United States of America
- Department of Pediatrics LSU Health, New Orleans, LA, United States of America
| | - John T. West
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Charles Wood
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, United States of America
- * E-mail:
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Tso FY, Lidenge SJ, Peña PB, Clegg AA, Ngowi JR, Mwaiselage J, Ngalamika O, Julius P, West JT, Wood C. High prevalence of pre-existing serological cross-reactivity against severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) in sub-Saharan Africa. Int J Infect Dis 2020; 102:577-583. [PMID: 33176202 PMCID: PMC7648883 DOI: 10.1016/j.ijid.2020.10.104] [Citation(s) in RCA: 164] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/27/2020] [Accepted: 10/31/2020] [Indexed: 01/22/2023] Open
Abstract
Objective Significant morbidity and mortality have occurred in the USA, Europe, and Asia due to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), whereas the numbers of infections and deaths in sub-Saharan Africa (SSA) have remained comparatively low. It has been hypothesized that exposure of the population in SSA to other coronaviruses prior to the COVID-19 pandemic resulted in some degree of cross-protection against SARS-CoV-2 infection and pathogenesis. We evaluated this hypothesis by comparing SARS-CoV-2 cross-reactive antibodies in pre-pandemic plasma samples collected from SSA and the USA. Method Pre-COVID-19 pandemic plasma samples from SSA and the USA were collected and tested by immunofluorescence assay against the spike and nucleocapsid proteins of all known human coronaviruses (HCoVs). Results The prevalence of SARS-CoV-2 serological cross-reactivity was significantly higher in samples from SSA compared with the USA. Most of these cross-reactive samples cross-recognized the SARS-CoV-2 nucleocapsid protein and the spike proteins of other HCoVs. Nucleocapsid proteins from HCoV-NL63 and HCoV-229E were detected in most samples, thereby implicating prior exposure to these two HCoVs as the likely source of cross-reactive antibodies against SARS-CoV-2. Conclusion The low incidences of SARS-CoV-2 infection and disease in SSA appear to be correlated with the pre-pandemic serological cross-recognition of HCoVs, which are substantially more prevalent in SSA than the USA.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology, Lincoln, NE, USA; School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Salum J Lidenge
- Nebraska Center for Virology, Lincoln, NE, USA; School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA; Ocean Road Cancer Institute, Dar es Salaam, Tanzania; Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Phoebe B Peña
- Nebraska Center for Virology, Lincoln, NE, USA; School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Ashley A Clegg
- Nebraska Center for Virology, Lincoln, NE, USA; School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - John R Ngowi
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania; Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Owen Ngalamika
- Dermatology and Venereology Section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka, Zambia
| | - Peter Julius
- Department of Pathology and Microbiology, University of Zambia School of Medicine, Lusaka, Zambia
| | - John T West
- Nebraska Center for Virology, Lincoln, NE, USA; Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Charles Wood
- Nebraska Center for Virology, Lincoln, NE, USA; School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA; Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA.
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9
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Ngalamika O, Tso FY, Lidenge S, Munsaka S, Shea D, Wood C, West J. Outcome markers of ART-treated HIV+ patients with early stage Kaposi's sarcoma. PLoS One 2020; 15:e0235865. [PMID: 32634155 PMCID: PMC7340279 DOI: 10.1371/journal.pone.0235865] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 06/23/2020] [Indexed: 12/19/2022] Open
Abstract
HIV-associated/epidemic Kaposi's sarcoma (EpKS) is an AIDS-defining angio-proliferative malignancy. It can be treated with antiretroviral therapy (ART) alone or with ART plus cytotoxic chemotherapy. ART-treated EpKS can either respond or worsen upon treatment. This study aimed at identifying immunological markers of ART-treatment response. We compared responders (those with clinical EpKS tumor regression) versus poor responders (those with progressive or non-responsive EpKS). We measured plasma cytokine and chemokine levels using cytometric bead assays. Kaposi's sarcoma herpesvirus (KSHV) neutralizing antibody (nAb) responses were also quantified to test associations with treatment outcome. Interleukin (IL)-5 levels were significantly elevated in responders versus poor-responders at baseline (0.76pg/ml vs. 0.37pg/ml; p<0.01) and follow-up (0.56pg/ml vs. 0.37pg/ml; p<0.01); IL-6 was lower in responders than poor-responders at follow-up (600fg/ml vs. 4272fg/ml; p<0.05). IP-10/CxCL-10 was significantly lower at follow-up in responders versus poor-responders (187pg/ml vs. 528pg/ml; p<0.01). KSHV nAb were not significantly differential between responders and poor-responders. In conclusion, high plasma IL-5 at baseline could be a marker for ART-treated KS tumor regression, whereas increased pro-inflammatory cytokine IL-6, and the chemokine IP-10, associate with KS tumor progression.
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Affiliation(s)
- Owen Ngalamika
- Dermatology & Venereology Section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka, Zambia
- * E-mail:
| | - For Yue Tso
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- Nebraska Center for Virology, Lincoln, Nebraska, United States of America
| | - Salum Lidenge
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- Nebraska Center for Virology, Lincoln, Nebraska, United States of America
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Sody Munsaka
- School of Biological Sciences, University of Zambia, Lusaka, Zambia
| | - Danielle Shea
- Nebraska Center for Virology, Lincoln, Nebraska, United States of America
| | - Charles Wood
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- Nebraska Center for Virology, Lincoln, Nebraska, United States of America
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - John West
- Nebraska Center for Virology, Lincoln, Nebraska, United States of America
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
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10
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Lidenge SJ, Kossenkov AV, Tso FY, Wickramasinghe J, Privatt SR, Ngalamika O, Ngowi JR, Mwaiselage J, Lieberman PM, West JT, Wood C. Comparative transcriptome analysis of endemic and epidemic Kaposi's sarcoma (KS) lesions and the secondary role of HIV-1 in KS pathogenesis. PLoS Pathog 2020; 16:e1008681. [PMID: 32706839 PMCID: PMC7406108 DOI: 10.1371/journal.ppat.1008681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/05/2020] [Accepted: 06/03/2020] [Indexed: 02/08/2023] Open
Abstract
In sub-Saharan Africa, endemic Kaposi's sarcoma (EnKS) is still prevalent despite high incidence of epidemic Kaposi's sarcoma (EpKS) resulting from the on-going HIV-1 epidemic. While KSHV is clearly the etiologic agent of KS, the mechanisms underlying KS development are not fully understood. For example, HIV-1 co-infection and concomitant immune dysfunction have been associated with EpKS development. However, the direct or indirect role(s) of HIV-1, and therefore of immune suppression, in EpKS remains unclear. How, or whether, EpKS is mechanistically distinct from EnKS is unknown. Thus, the absence of HIV-1 co-infection in EnKS provides a unique control for investigating and deciphering whether HIV-1 plays a direct or indirect role in the EpKS tumor microenvironment. We hypothesized that HIV-1 co-infection would induce transcriptome changes that differentiate EpKS from EnKS, thereby defining the direct intra-tumor role of HIV-1 in KS. Comparison of ART-treated and -naïve patients would further define the impact of ART on the KS transcriptome. We utilized RNA-seq followed by multiparameter bioinformatics analysis to compare transcriptomes from KS lesions to uninvolved control skin. We provide the first transcriptomic comparison of EpKS versus EnKS, ART-treated vs-naïve EpKS and male vs female EpKS to define the roles of HIV-1 co-infection, the impact of ART, and gender on KS gene expression profiles. Our findings suggest that ART-use and gender have minimal impact on transcriptome profiles of KS lesions. Gene expression profiles strongly correlated between EpKS and EnKS patients (Spearman r = 0.83, p<10-10). A subset of genes involved in tumorigenesis and inflammation/immune responses showed higher magnitude, but not unique dysregulation in EnKS compared to EpKS. While gender and ART had no detectable contribution, the trend toward higher magnitude of gene dysregulation in EnKS coupled with the absence of HIV-1 transcripts in EpKS may suggest an indirect or systemic effect of HIV-1 to promote KS tumorigenesis.
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Affiliation(s)
- Salum J. Lidenge
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | | | - For Yue Tso
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America
| | | | - Sara R. Privatt
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America
| | - Owen Ngalamika
- Dermatology and Venereology section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka, Zambia
| | - John R. Ngowi
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Paul M. Lieberman
- Wistar Institute, Philadelphia, Pennsylvania, United States of America
| | - John T. West
- Nebraska Center for Virology and the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, United States of America
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America
- Nebraska Center for Virology and the Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, United States of America
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11
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Lidenge SJ, Tso FY, Ngalamika O, Ngowi JR, Mortazavi Y, Kwon EH, Shea DM, Minhas V, Mwaiselage J, Wood C, West JT. Similar Immunological Profiles Between African Endemic and Human Immunodeficiency Virus Type 1-Associated Epidemic Kaposi Sarcoma (KS) Patients Reveal the Primary Role of KS-Associated Herpesvirus in KS Pathogenesis. J Infect Dis 2020; 219:1318-1328. [PMID: 30452681 DOI: 10.1093/infdis/jiy654] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 11/09/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Kaposi sarcoma (KS)-associated herpesvirus (KSHV) is etiologically linked to all KS forms, but mechanisms underlying KS development are unclear. The incidence of KS in human immunodeficiency virus type 1-infected (HIV-1+) individuals implicates immune dysregulation; however, the lack of characterization of KSHV immune responses in endemic KS makes the role of HIV-1 unclear. The study objective was to investigate the HIV-1 and KSHV roles in viral nucleic acid detection, antibody responses, and cytokine responses in polymerase chain reaction-confirmed epidemic KS and endemic KS patients and non-cancer controls from sub-Saharan Africa. METHODS KSHV viral DNA (vDNA), total anti-KSHV antibody, KSHV neutralizing antibody (nAb), and cytokines were quantified. RESULTS KSHV vDNA was detectable in tumors but variably in plasma and peripheral blood mononuclear cells. Consistent with elevated antibody-associated cytokines (interleukin [IL] 6, IL-5, and IL-10), nAb titers were higher in epidemic KS and endemic KS patients than in controls (P < .05). Despite HIV-1 coinfection in epidemic KS, nAb titers were similar between epidemic KS and endemic KS patients (P = 0.3). CONCLUSIONS Similarities in antibody and cytokine responses between epidemic and endemic KS patients suggest that KSHV drives KS pathogenesis, whereas HIV-1 exacerbates it.
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Affiliation(s)
- Salum J Lidenge
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania.,School of Biological Sciences, University of Nebraska-Lincoln, Dar es Salaam, Tanzania.,Ocean Road Cancer Institute, Dar es Salaam, Tanzania.,Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - For Yue Tso
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania.,School of Biological Sciences, University of Nebraska-Lincoln, Dar es Salaam, Tanzania
| | - Owen Ngalamika
- Dermatology and Venereology Section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka
| | - John R Ngowi
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Yasaman Mortazavi
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania.,School of Biological Sciences, University of Nebraska-Lincoln, Dar es Salaam, Tanzania
| | - Eun Hee Kwon
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania
| | - Danielle M Shea
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania
| | - Veenu Minhas
- Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, Omaha
| | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania.,Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Charles Wood
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania.,School of Biological Sciences, University of Nebraska-Lincoln, Dar es Salaam, Tanzania
| | - John T West
- Nebraska Center for Virology, University of Nebraska-Lincoln, Dar es Salaam, Tanzania
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12
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Tso FY, West JT, Wood C. Reduction of Kaposi's Sarcoma-Associated Herpesvirus Latency Using CRISPR-Cas9 To Edit the Latency-Associated Nuclear Antigen Gene. J Virol 2019; 93:e02183-18. [PMID: 30651362 PMCID: PMC6430552 DOI: 10.1128/jvi.02183-18] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/03/2019] [Indexed: 12/18/2022] Open
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiologic agent of Kaposi's sarcoma (KS), an AIDS-defining cancer in HIV-1-infected individuals or immune-suppressed transplant patients. The prevalence for both KSHV and KS are highest in sub-Saharan Africa where HIV-1 infection is also epidemic. There is no effective treatment for advanced KS; therefore, the survival rate is low. Similar to other herpesviruses, KSHV's ability to establish latent infection in the host presents a major challenge to KS treatment or prevention. Strategies to reduce KSHV episomal persistence in latently infected cells might lead to approaches to prevent KS development. The CRISPR-Cas9 system is a gene editing technique that has been used to specifically manipulate the HIV-1 genome but also Epstein-Barr virus (EBV) which, similar to KSHV, belongs to the Gammaherpesvirus family. Among KSHV gene products, the latency-associated nuclear antigen (LANA) is absolutely required in the maintenance, replication, and segregation of KSHV episomes during mitosis, which makes LANA an ideal target for CRISPR-Cas9 editing. In this study, we designed a replication-incompetent adenovirus type 5 to deliver a LANA-specific Cas9 system (Ad-CC9-LANA) into various KSHV latent target cells. We showed that KSHV latently infected epithelial and endothelial cells transduced with Ad-CC9-LANA underwent significant reductions in the KSHV episome burden, LANA RNA and protein expression over time, but this effect is less profound in BC3 cells due to the low infection efficiency of adenovirus type 5 for B cells. The use of an adenovirus vector might confer potential in vivo applications of LANA-specific Cas9 against KSHV infection and KS.IMPORTANCE The ability for Kaposi's sarcoma-associated herpesvirus (KSHV), the causative agent of Kaposi's sarcoma (KS), to establish and maintain latency has been a major challenge to clearing infection and preventing KS development. This is the first study to demonstrate the feasibility of using a KSHV LANA-targeted CRISPR-Cas9 and adenoviral delivery system to disrupt KSHV latency in infected epithelial and endothelial cell lines. Our system significantly reduced the KSHV episomal burden over time. Given the safety record of adenovirus as vaccine or delivery vectors, this approach to limit KSHV latency may also represent a viable strategy against other tumorigenic viruses and may have potential benefits in developing countries where the viral cancer burden is high.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - John T West
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
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13
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Tso FY, Kang G, Kwon EH, Julius P, Li Q, West JT, Wood C. Brain is a potential sanctuary for subtype C HIV-1 irrespective of ART treatment outcome. PLoS One 2018; 13:e0201325. [PMID: 30040863 PMCID: PMC6057662 DOI: 10.1371/journal.pone.0201325] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/12/2018] [Indexed: 12/11/2022] Open
Abstract
Subtype C HIV-1 is responsible for the largest proportion of people living with HIV-1 infection. However, there is limited information about the roles of the brain and its cell types as a potential sanctuary for this subtype and how the sanctuary may be affected by the administration of anti-retroviral therapy (ART). To address this issue, we collected postmortem brain tissues from ART treated HIV-1 infected Zambian individuals who experienced complete viral suppression and those who did not. Tissues from various brain compartments were collected from each individual as frozen and formalin-fixed paraffin embedded brain specimens, for detection and quantification of HIV-1 genomes and identification of the infected cell type. Genomic DNA and RNA were extracted from frozen brain tissues. The extracted DNA and RNA were then subjected to droplet digital PCR for HIV-1 quantification. RNA/DNAscope in situ hybridization (ISH) for HIV-1 was performed on formalin-fixed paraffin embedded brain tissues in conjugation with immunohistochemistry to identify the infected cell types. Droplet digital PCR revealed that HIV-1 gag DNA and RNA were detectable in half of the cases studied regardless of ART success or failure. The presence of HIV-1 lacked specific tissue compartmentalization since detection was random among various brain tissues. When combined with immunohistochemistry, RNA/DNAscope ISH demonstrated co-localization of HIV-1 DNA with CD68 expressing cells indicative of microglia or peripheral macrophage. Our study showed that brain is a potential sanctuary for subtype C HIV-1, as HIV-1 can be detected in the brain of infected individuals irrespective of ART treatment outcome and no compartmentalization of HIV-1 to specific brain compartments was evident.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Nebraska, United States of America
| | - Guobin Kang
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Nebraska, United States of America
| | - Eun Hee Kwon
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Nebraska, United States of America
| | - Peter Julius
- Department of Pathology and Microbiology, University Teaching Hospital, Nationalist Road, Lusaka, Zambia
| | - Qingsheng Li
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Nebraska, United States of America
| | - John T. West
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Nebraska, United States of America
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Nebraska, United States of America
- * E-mail:
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14
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Tso FY, Kossenkov AV, Lidenge SJ, Ngalamika O, Ngowi JR, Mwaiselage J, Wickramasinghe J, Kwon EH, West JT, Lieberman PM, Wood C. RNA-Seq of Kaposi's sarcoma reveals alterations in glucose and lipid metabolism. PLoS Pathog 2018; 14:e1006844. [PMID: 29352292 PMCID: PMC5792027 DOI: 10.1371/journal.ppat.1006844] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/31/2018] [Accepted: 12/27/2017] [Indexed: 12/31/2022] Open
Abstract
Kaposi’s sarcoma-associated herpesvirus (KSHV) is the etiologic agent of Kaposi’s sarcoma (KS). It is endemic in a number of sub-Saharan African countries with infection rate of >50%. The high prevalence of HIV-1 coupled with late presentation of advanced cancer staging make KS the leading cancer in the region with poor prognosis and high mortality. Disease markers and cellular functions associated with KS tumorigenesis remain ill-defined. Several studies have attempted to investigate changes of the gene profile with in vitro infection of monoculture models, which are not likely to reflect the cellular complexity of the in vivo lesion environment. Our approach is to characterize and compare the gene expression profile in KS lesions versus non-cancer tissues from the same individual. Such comparisons could identify pathways critical for KS formation and maintenance. This is the first study that utilized high throughput RNA-seq to characterize the viral and cellular transcriptome in tumor and non-cancer biopsies of African epidemic KS patients. These patients were treated anti-retroviral therapy with undetectable HIV-1 plasma viral load. We found remarkable variability in the viral transcriptome among these patients, with viral latency and immune modulation genes most abundantly expressed. The presence of KSHV also significantly affected the cellular transcriptome profile. Specifically, genes involved in lipid and glucose metabolism disorder pathways were substantially affected. Moreover, infiltration of immune cells into the tumor did not prevent KS formation, suggesting some functional deficits of these cells. Lastly, we found only minimal overlaps between our in vivo cellular transcriptome dataset with those from in vitro studies, reflecting the limitation of in vitro models in representing tumor lesions. These findings could lead to the identification of diagnostic and therapeutic markers for KS, and will provide bases for further mechanistic studies on the functions of both viral and cellular genes that are involved. Kaposi’s sarcoma-associated herpesvirus (KSHV) is endemic in sub-Saharan Africa and cause Kaposi’s sarcoma (KS). KS is one of the most common cancer among HIV-1 patients in this region. Despite anti-retroviral treatment, prognosis for KS is poor with high mortality often due to presentation of late cancer stage. In order to identify biomarkers or therapeutic targets against KS, a better understanding of the viral and cellular genes expression/transcriptome in the tumor will be necessary. We used RNA-seq, a highly efficient method to sequence transcriptome, to characterize and compare the viral and cellular transcriptome in tumor and non-cancer tissues from KS patients. We found that viral genes involved in latency and immune modulation are most commonly expressed among KS patients. Additionally, cellular genes involved in lipid and glucose metabolism disorder pathways are significantly affected by the presence of KSHV. Despite the detection of immune cells in the tumor, it did not prevent the tumor progression, suggesting some level of immune cell dysfunctions in KS patients. Lastly, we found limited overlap of our data, derived from actual KS biopsy, with other cell culture models, suggesting that the complexity of tumor is difficult to be reflected in cell line models.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | | | - Salum J. Lidenge
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Owen Ngalamika
- Dermatology and Venereology section, University Teaching Hospitals, University of Zambia School of Medicine, Lusaka, Zambia
| | - John R. Ngowi
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | - Julius Mwaiselage
- Ocean Road Cancer Institute, Dar es Salaam, Tanzania
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | | | - Eun Hee Kwon
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - John T. West
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Paul M. Lieberman
- Wistar Institute, Philadelphia, Pennsylvania, United States of America
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- * E-mail:
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15
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Tso FY, Sawyer A, Kwon EH, Mudenda V, Langford D, Zhou Y, West J, Wood C. Kaposi's Sarcoma-Associated Herpesvirus Infection of Neurons in HIV-Positive Patients. J Infect Dis 2017; 215:1898-1907. [PMID: 27932611 DOI: 10.1093/infdis/jiw545] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/11/2016] [Indexed: 12/18/2022] Open
Abstract
Background Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of Kaposi sarcoma (KS), one of the leading cancers in human immunodeficiency virus (HIV)-infected patients in Zambia. KSHV was detected in the human central nervous system (CNS) by polymerase chain reaction (PCR) analysis, but tissue location and cell tropism for KSHV infection has not been established. Given the neurotropism exhibited by other herpesviruses and the frequent coinfection of HIV-positive individuals by KSHV, we sought to determine whether the central nervous system (CNS) can be infected by KSHV in HIV-positive Zambian individuals. Methods Postmortem brain tissue specimens were collected from individuals coinfected with KSHV and HIV. PCR and Southern blots were performed on DNA extracted from the brain tissue specimens to verify KSHV infection. Immunohistochemical analysis and immunofluorescent microscopy were used to localize and identify KSHV-infected cells. Tropism was further established by in vitro infection of primary human neurons with rKSHV.219. Results KSHV DNA was detected in the CNS from 4 of 11 HIV-positive individuals. Immunohistochemical analysis and immunofluorescent microscopy demonstrated that KSHV infected neurons and oligodendrocytes in parenchymal brain tissues. KSHV infection of neurons was confirmed by in vitro infection of primary human neurons with rKSHV.219. Conclusion Our study showed that KSHV infects human CNS-resident cells, primarily neurons, in HIV-positive Zambian individuals.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology.,School of Biological Sciences
| | - Ashley Sawyer
- Nebraska Center for Virology.,School of Biological Sciences
| | - Eun Hee Kwon
- Nebraska Center for Virology.,School of Biological Sciences
| | - Victor Mudenda
- Department of Microbiology and Pathology, University Teaching Hospital, Lusaka, Zambia
| | - Dianne Langford
- Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - You Zhou
- Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - John West
- Nebraska Center for Virology.,School of Biological Sciences
| | - Charles Wood
- Nebraska Center for Virology.,School of Biological Sciences
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16
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Tso FY, Abrahamyan L, Hu SL, Ruprecht RM, Wood C. Variations in the Biological Functions of HIV-1 Clade C Envelope in a SHIV-Infected Rhesus Macaque during Disease Progression. PLoS One 2013; 8:e66973. [PMID: 23840566 PMCID: PMC3694120 DOI: 10.1371/journal.pone.0066973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/14/2013] [Indexed: 11/18/2022] Open
Abstract
A better understanding of how the biological functions of the HIV-1 envelope (Env) changes during disease progression may aid the design of an efficacious anti-HIV-1 vaccine. Although studies from patient had provided some insights on this issue, the differences in the study cohorts and methodology had make it difficult to reach a consensus of the variations in the HIV-1 Env functions during disease progression. To this end, an animal model that can be infected under controlled environment and reflect the disease course of HIV-1 infection in human will be beneficial. Such an animal model was previously demonstrated by the infection of macaque with SHIV, expressing HIV-1 clade C Env V1-V5 region. By using this model, we examined the changes in biological functions of Env in the infected animal over the entire disease course. Our data showed an increase in the neutralization resistance phenotype over time and coincided with the decrease in the net charges of the V1-V5 region. Infection of PBMC with provirus expressing various Env clones, isolated from the infected animal over time, showed a surprisingly better replicative fitness for viruses expressing the Env from early time point. Biotinylation and ELISA data also indicated a decrease of cell-surface-associated Env and virion-associated gp120 content with disease progression. This decrease did not affect the CD4-binding capability of Env, but were positively correlated with the decrease of Env fusion ability. Interestingly, some of these changes in biological functions reverted to the pre-AIDS level during advance AIDS. These data suggested a dynamic relationship between the Env V1-V5 region with the host immune pressure. The observed changes of biological functions in this setting might reflect and predict those occurring during natural disease progression in human.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Levon Abrahamyan
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Shiu-Lok Hu
- Department of Pharmaceutics, University of Washington, Seattle, Washington, United States of America
- The Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Ruth M. Ruprecht
- Dana-Farber Cancer Institute, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- * E-mail:
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Tso FY, Tully DC, Gonzalez S, Quince C, Ho O, Polacino P, Ruprecht RM, Hu SL, Wood C. Dynamics of envelope evolution in clade C SHIV-infected pig-tailed macaques during disease progression analyzed by ultra-deep pyrosequencing. PLoS One 2012; 7:e32827. [PMID: 22427893 PMCID: PMC3299704 DOI: 10.1371/journal.pone.0032827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 02/06/2012] [Indexed: 11/19/2022] Open
Abstract
Understanding the evolution of the human immunodeficiency virus type 1 (HIV-1) envelope during disease progression can provide tremendous insights for vaccine development, and simian-human immunodeficiency virus (SHIV) infection of non-human primate provides an ideal platform for such studies. A newly developed clade C SHIV, SHIV-1157ipd3N4, which was able to infect rhesus macaques, closely resembled primary HIV-1 in transmission and pathogenesis, was used to infect several pig-tailed macaques. One of the infected animals subsequently progressed to AIDS, whereas one remained a non-progressor. The viral envelope evolution in the infected animals during disease progression was analyzed by a bioinformatics approach using ultra-deep pyrosequencing. Our results showed substantial envelope variations emerging in the progressor animal after the onset of AIDS. These envelope variations impacted the length of the variable loops and charges of different envelope regions. Additionally, multiple mutations were located at the CD4 and CCR5 binding sites, potentially affecting receptor binding affinity, viral fitness and they might be selected at late stages of disease. More importantly, these envelope mutations are not random since they had repeatedly been observed in a rhesus macaque and a human infant infected by either SHIV or HIV-1, respectively, carrying the parental envelope of the infectious molecular clone SHIV-1157ipd3N4. Moreover, similar mutations were also observed from other studies on different clades of envelopes regardless of the host species. These recurring mutations in different envelopes suggest that there may be a common evolutionary pattern and selection pathway for the HIV-1 envelope during disease progression.
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Affiliation(s)
- For Yue Tso
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Damien C. Tully
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Sandra Gonzalez
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Christopher Quince
- School of Engineering, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - On Ho
- Department of Pharmaceutics, University of Washington, Seattle, Washington, United States of America
| | - Patricia Polacino
- The Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Ruth M. Ruprecht
- Dana-Farber Cancer Institute, Boston, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Shiu-Lok Hu
- Department of Pharmaceutics, University of Washington, Seattle, Washington, United States of America
- The Washington National Primate Research Center, University of Washington, Seattle, Washington, United States of America
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- * E-mail:
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Lowe J, Panda D, Rose S, Jensen T, Hughes WA, Tso FY, Angeletti PC. Evolutionary and structural analyses of alpha-papillomavirus capsid proteins yields novel insights into L2 structure and interaction with L1. Virol J 2008; 5:150. [PMID: 19087355 PMCID: PMC2630942 DOI: 10.1186/1743-422x-5-150] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2008] [Accepted: 12/17/2008] [Indexed: 11/10/2022] Open
Abstract
Background PVs (PV) are small, non-enveloped, double-stranded DNA viruses that have been identified as the primary etiological agent for cervical cancer and their potential for malignant transformation in mucosal tissue has a large impact on public health. The PV family Papillomaviridae is organized into multiple genus based on sequential parsimony, host range, tissue tropism, and histology. We focused this analysis on the late gene products, major (L1) and minor (L2) capsid proteins from the family Papillomaviridae genus Alpha-papillomavirus. Alpha-PVs preferentially infect oral and anogenital mucosa of humans and primates with varied risk of oncogenic transformation. Development of evolutionary associations between PVs will likely provide novel information to assist in clarifying the currently elusive relationship between PV and its microenvironment (i.e., the single infected cell) and macro environment (i.e., the skin tissue). We attempt to identify the regions of the major capsid proteins as well as minor capsid proteins of alpha-papillomavirus that have been evolutionarily conserved, and define regions that are under constant selective pressure with respect to the entire family of viruses. Results This analysis shows the loops of L1 are in fact the most variable regions among the alpha-PVs. We also identify regions of L2, involved in interaction with L1, as evolutionarily conserved among the members of alpha- PVs. Finally, a predicted three-dimensional model was generated to further elucidate probable aspects of the L1 and L2 interaction.
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Affiliation(s)
- John Lowe
- School of Biological Sciences, Nebraska Center for Virology, University of Nebraska-Lincoln, 68583-0900, USA
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