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Wang G, Wei W, Luo Q, Chen L, Bao X, Tao X, He X, Zhan B, Liang H, Jiang J, Ye L. The role and mechanisms of PD-L1 in immune evasion during Talaromyces marneffei infection. Int Immunopharmacol 2024; 126:111255. [PMID: 37984251 DOI: 10.1016/j.intimp.2023.111255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/05/2023] [Accepted: 11/15/2023] [Indexed: 11/22/2023]
Abstract
Talaromycosis, caused by Talaromyces marneffei (T. marneffei), is a systemic fungal disease that involves dissemination throughout the body. The ability of T. marneffei to evade the immune system is considered a crucial factor in its persistent infection, although the specific mechanisms are not yet fully understood. This study aims to investigate the molecular mechanisms underlying the occurrence of latent T. marneffei infection and immune evasion. The gene expression profile analysis in T. marneffei-infected mouse revealed that Pd-l1 exhibited the highest correlation strength with other hub genes, with a median of 0.60 (IQR: 0.50-0.69). T. marneffei infection upregulated the expression of PD-1 and PD-L1 in PBMCs from HIV patients, which was also observed in the T. marneffei-infected mouse and macrophage models. Treatment with a PD-L1 inhibitor significantly reduced fungal burden in the liver and spleen tissues of infected mice and in the kupffer-CTLL-2 co-culture system. PD-L1 inhibitor treatment increased CTLL-2 cell proliferation and downregulated the expression of PD-1, SHP-2, and p-SHP-2, indicating the activation of T cell viability and T cell receptor signaling pathway. Additionally, treatment with a PI3K inhibitor downregulated PD-L1 in T. marneffei-infected kupffer cells. Similar results were observed with treatment using the T. marneffei cell wall virulence factor β-glucan. Overall, T. marneffei infection upregulated PD-L1 expression in HIV / T. marneffei patients, mice, and kupffer cells. Treatment with a PD-L1 inhibitor significantly reduced fungal burden, while activating T cell activity and proliferation, thereby promoting fungal clearance. Furthermore, the PI3K signaling pathway may be involved in the regulation of PD-L1 by T. marneffei.
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Affiliation(s)
- Gang Wang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China; Institute of Oncology, Guangxi Academy of Medical Sciences, Nanning, Guangxi 530021, China
| | - Wudi Wei
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China; Guangxi-ASEAN Collaborative Innovation Center for Major Disease Prevention and Treatment, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Qiang Luo
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China; Guangxi-ASEAN Collaborative Innovation Center for Major Disease Prevention and Treatment, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Lixiang Chen
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China
| | - Xiuli Bao
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China
| | - Xing Tao
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China
| | - Xiaotao He
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China
| | - Baili Zhan
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China
| | - Hao Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China; Guangxi-ASEAN Collaborative Innovation Center for Major Disease Prevention and Treatment, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, China.
| | - Junjun Jiang
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China; Guangxi-ASEAN Collaborative Innovation Center for Major Disease Prevention and Treatment, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi 530021, China.
| | - Li Ye
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning 530021, Guangxi, China.
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Agbarya A, Sarel I, Ziv-Baran T, Schwartz O, Shechtman Y, Kozlener E, Khoury R, Sheikh-Ahmad M, Saiegh L, Swaid F, Ahmad AA, Janzic U, Brenner R. Response Rate of the Third and Fourth Doses of the BNT162b2 Vaccine Administered to Cancer Patients Undergoing Active Anti-Neoplastic Treatments. Diseases 2023; 11:128. [PMID: 37873772 PMCID: PMC10594524 DOI: 10.3390/diseases11040128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 10/25/2023] Open
Abstract
The BNT162b2 vaccine is globally used for preventing morbidity and mortality related to COVID-19. Cancer patients have had priority for receiving the vaccine due to their diminished immunity. This study reports the response rate of administering the third and fourth vaccine doses to cancer patients receiving active anti-neoplastic treatment. A total of 142 patients received two doses of the mRNA-based BNT162b2 COVID-19 vaccine, while 76 and 25 patients received three and four doses, respectively. The efficacy of the humoral response following two vaccine doses was diminished in cancer patients, especially in the group of patients receiving chemotherapy. In a multivariate analysis, patients who received three and four BNT162b2 vaccine doses were more likely to have antibody titers in the upper tertile compared to patients who received two doses of the vaccine (odds ratio (OR) 7.62 (95% CI 1.38-42.12), p = 0.02 and 17.15 (95% CI 5.01-58.7), p < 0.01, respectively). Unlike the response after two doses, the third and fourth BNT162b2 vaccine booster doses had an increased efficacy of 95-100% in cancer patients while undergoing active treatment. This result could be explained by different mechanisms including the development of memory B cells.
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Affiliation(s)
- Abed Agbarya
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
- The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel
| | - Ina Sarel
- Edith Wolfson Medical Center, Oncology Institute, Holon 5822012, Israel;
| | - Tomer Ziv-Baran
- School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel;
| | - Orna Schwartz
- Microbiology and Immunology Laboratory, Edith Wolfson Medical Center, Holon 5822012, Israel;
| | - Yelena Shechtman
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Ella Kozlener
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Rasha Khoury
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Mohammad Sheikh-Ahmad
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Leonard Saiegh
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Forat Swaid
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Asala Abu Ahmad
- Bnai-Zion Medical Center, Oncology Institute, Haifa 3339419, Israel; (Y.S.); (E.K.); (R.K.); (M.S.-A.); (L.S.); (F.S.); (A.A.A.)
| | - Urska Janzic
- Department of Medical Oncology, University Clinic Golnik, 4202 Golnik, Slovenia;
| | - Ronen Brenner
- Edith Wolfson Medical Center, Oncology Institute, Holon 5822012, Israel;
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3
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Chen X, Lin Y, Yue S, Yang Y, Yang X, He J, Gao L, Li Z, Hu L, Tang J, Wang Y, Tian Q, Hao Y, Xu L, Huang Q, Cao Y, Ye L. PD-1/PD-L1 blockade restores tumor-induced COVID-19 vaccine bluntness. Vaccine 2023; 41:4986-4995. [PMID: 37400286 PMCID: PMC10281226 DOI: 10.1016/j.vaccine.2023.06.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 05/14/2023] [Accepted: 06/15/2023] [Indexed: 07/05/2023]
Abstract
The COVID-19 vaccinations are crucial in protecting against the global pandemic. However, accumulating studies revealed the severely blunted COVID-19 vaccine effectiveness in cancer patients. The PD-1/PD-L1 immune checkpoint blockade (ICB) therapy leads to durable therapeutic responses in a subset of cancer patients and has been approved to treat a wide spectrum of cancers in the clinic. In this regard, it is pivotal to explore the potential impact of PD-1/PD-L1 ICB therapy on COVID-19 vaccine effectiveness during ongoing malignancy. In this study, using preclinical models, we found that the tumor-suppressed COVID-19 vaccine responses are largely reverted in the setting of PD-1/PD-L1 ICB therapy. We also identified that the PD-1/PD-L1 blockade-directed restoration of COVID-19 vaccine effectiveness is irrelevant to anti-tumor therapeutic outcomes. Mechanistically, the restored COVID-19 vaccine effectiveness is entwined with the PD-1/PD-L1 blockade-driven preponderance of follicular helper T cell and germinal center responses during ongoing malignancy. Thus, our findings indicate that PD-1/PD-L1 blockade will greatly normalize the responses of cancer patients to COVID-19 vaccination, while regardless of its anti-tumor efficacies on these patients.
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Affiliation(s)
- Xiangyu Chen
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yao Lin
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Shuai Yue
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China; Cancer Center, Daping Hospital & Army Medical Center of PLA, Third Military Medical University, Chongqing 400042, China
| | - Yang Yang
- Guangdong Provincial Key Laboratory of Immune Regulation and Immunotherapy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou 510515, China
| | - Xiaofan Yang
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
| | - Junjian He
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Leiqiong Gao
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Zhirong Li
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Li Hu
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Jianfang Tang
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Yifei Wang
- Guangdong Provincial Key Laboratory of Immune Regulation and Immunotherapy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou 510515, China
| | - Qin Tian
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
| | - Yaxing Hao
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Lifan Xu
- Institute of Immunology, Third Military Medical University, Chongqing 400038, China
| | - Qizhao Huang
- Guangdong Provincial Key Laboratory of Immune Regulation and Immunotherapy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou 510515, China
| | - Yingjiao Cao
- Guangdong Provincial Key Laboratory of Immune Regulation and Immunotherapy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou 510515, China.
| | - Lilin Ye
- School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; Institute of Immunology, Third Military Medical University, Chongqing 400038, China; Guangdong Provincial Key Laboratory of Immune Regulation and Immunotherapy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou 510515, China.
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Liatsou E, Ntanasis-Stathopoulos I, Lykos S, Ntanasis-Stathopoulos A, Gavriatopoulou M, Psaltopoulou T, Sergentanis TN, Terpos E. Adult Patients with Cancer Have Impaired Humoral Responses to Complete and Booster COVID-19 Vaccination, Especially Those with Hematologic Cancer on Active Treatment: A Systematic Review and Meta-Analysis. Cancers (Basel) 2023; 15:cancers15082266. [PMID: 37190194 DOI: 10.3390/cancers15082266] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023] Open
Abstract
The exclusion of patients with cancer in clinical trials evaluating COVID-19 vaccine efficacy and safety, in combination with the high rate of severe infections, highlights the need for optimizing vaccination strategies. The aim of this study was to perform a systematic review and meta-analysis of the published available data from prospective and retrospective cohort studies that included patients with either solid or hematological malignancies according to the PRISMA Guidelines. A literature search was performed in the following databases: Medline (Pubmed), Scopus, Clinicaltrials.gov, EMBASE, CENTRAL and Google Scholar. Overall, 70 studies were included for the first and second vaccine dose and 60 studies for the third dose. The Effect Size (ES) of the seroconversion rate after the first dose was 0.41 (95%CI: 0.33-0.50) for hematological malignancies and 0.56 (95%CI: 0.47-0.64) for solid tumors. The seroconversion rates after the second dose were 0.62 (95%CI: 0.57-0.67) for hematological malignancies and 0.88 (95%CI: 0.82-0.93) for solid tumors. After the third dose, the ES for seroconversion was estimated at 0.63 (95%CI: 0.54-0.72) for hematological cancer and 0.88 (95%CI: 0.75-0.97) for solid tumors. A subgroup analysis was performed to evaluate potential factors affecting immune response. Production of anti-SARS-CoV-2 antibodies was found to be more affected in patients with hematological malignancies, which was attributed to the type of malignancy and treatment with monoclonal antibodies according to the subgroup analyses. Overall, this study highlights that patients with cancer present suboptimal humoral responses after COVID-19 vaccination. Several factors including timing of vaccination in relevance with active therapy, type of therapy, and type of cancer should be considered throughout the immunization process.
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Affiliation(s)
- Efstathia Liatsou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | | | - Stavros Lykos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | | | - Maria Gavriatopoulou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Theodora Psaltopoulou
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Theodoros N Sergentanis
- Department of Public Health Policy, School of Public Health, University of West Attica, 12243 Aigaleo, Greece
| | - Evangelos Terpos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, 11528 Athens, Greece
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Retnakumar SV, Chauvin C, Bayry J. The implication of anti-PD-1 therapy in cancer patients for the vaccination against viral and other infectious diseases. Pharmacol Ther 2023; 245:108399. [PMID: 37001736 DOI: 10.1016/j.pharmthera.2023.108399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023]
Abstract
The phenomenon of 'T cell exhaustion', a state of T cell dysfunction observed during chronic infections and cancers, has been a major obstacle in mounting appropriate immune responses against infectious agents or tumor antigens. The exhausted T cells are characterized by poor effector functions mainly due to the overexpression of inhibitory receptors such as programmed cell death protein 1 (PD-1), cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), T cell immunoglobulin and mucin-domain containing 3 (TIM3), lymphocyte activation gene 3 (LAG3), and T cell immunoreceptor with immunoglobulin and immunoreceptor tyrosine-based inhibitory motif (ITIM) domain (TIGIT), commonly referred to as immune checkpoint (ICP) molecules. ICP blockade, especially of PD-1 that can potentially reverse T cell exhaustion and thereby re-stimulate the impaired immune system, is widely used in clinics as a promising therapeutic strategy for various cancers and is more recently being investigated in infectious diseases as well. In fact, cancer patients represent a population of immunocompromised individuals who are more susceptible to infections and associated complications, and thus the need for protective vaccinations against these diseases is of prime importance in this category. When it comes to vaccinating anti-PD-1-treated cancer patients against infectious diseases including COVID-19 and influenza, a special focus should be brought on the revived immune cells, which could be dynamically affected by the antigenic stimulation. However, since cancer patients are not generally included in clinical trials for designing vaccines against infectious diseases, the possible interaction between vaccine immune responses and ICP therapy is largely unexplored. Mechanistically, the reversal of T cell exhaustion by ICP in an otherwise immunocompromised population could be beneficial for the vaccine's efficacy, helping the immune system to mount a robust immune response. Nevertheless, patients with cancer undergoing anti-PD-1 blockade are known to experience immune-related adverse effects (irAEs). The risk of increasing the irAEs due to the overstimulation of the immune system during vaccination is a major concern. Therefore, while routine vaccination is indispensable for the protection of cancer patients, the impact of PD-1 blockade on vaccine responses against infectious agents requires careful consideration to avoid undesirable adverse effects that could impair the efficacy of anti-cancer treatment.
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Zubarioglu T, Dinc HO, Hopurcuoglu D, Gulmez R, Uygur E, Yilmaz G, Ahmadzada S, Uzunyayla-Inci G, Oge-Enver E, Kiykim E, Kocazeybek B, Aktuglu-Zeybek C. BNT162b2 COVID-19 vaccination elicited protective robust immune responses in pediatric patients with inborn errors of metabolism. Front Immunol 2023; 13:1082192. [PMID: 36685561 PMCID: PMC9849954 DOI: 10.3389/fimmu.2022.1082192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/15/2022] [Indexed: 01/07/2023] Open
Abstract
Introduction SARS-CoV-2 infection can lead to a life-threatening acute metabolic decompensation in children with inborn errors of metabolism (IEM), so vaccination is mandatory. However, IEMs can also impair innate or adaptive immunity, and the impact of these immune system alterations on immunogenicity and vaccine efficacy is still unknown. Here, we investigated humoral immune responses to the BNT162b2 mRNA COVID-19 vaccine and clinical outcomes in pediatric IEM patients. Methods Fifteen patients between 12-18 years of age with a confirmed diagnosis of IEM, and received BNT162b2 were enrolled to the study. Patients with an anti-SARS-CoV-2 IgG concentration >50 AU/mL before vaccination were defined as "COVID-19 recovered" whereas patients with undetectable anti-SARS-CoV-2 IgG concentration were defined as "COVID-19 naïve". Anti-SARS-CoV-2 Immunoglobulin G (IgG) and SARS-CoV-2 neutralizing antibody (nAb) titers were measured to assess humoral immune response. Results Anti-SARS-CoV-2 IgG titers and nAb IH% increased significantly after the first dose. The increase in antibody titers after first and second vaccination remained significant in COVID-19 naïve patients. Complete anti-SARS-CoV-2 IgG seropositivity and nAb IH% positivity was observed in all patients after the second dose. Vaccination appears to be clinically effective in IEM patients, as none of the patients had COVID-19 infection within six months of the last vaccination. Discussion Humoral immune response after two doses of BNT162b2 in pediatric IEM patients was adequate and the immune response was not different from that of healthy individuals.
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Affiliation(s)
- Tanyel Zubarioglu
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye,*Correspondence: Tanyel Zubarioglu,
| | - Harika Oyku Dinc
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Bezmialem Vakıf University, Istanbul, Türkiye
| | - Duhan Hopurcuoglu
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Ruveyda Gulmez
- Department of Pediatric Nephrology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Esma Uygur
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Gizem Yilmaz
- Department of Pediatrics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Türkiye
| | - Saffa Ahmadzada
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Gozde Uzunyayla-Inci
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Ece Oge-Enver
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Ertugrul Kiykim
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Bekir Kocazeybek
- Department of Medical Microbiology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
| | - Cigdem Aktuglu-Zeybek
- Department of Pediatric Nutrition and Metabolism, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Türkiye
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Alexopoulos H, Trougakos IP, Dimopoulos MA, Terpos E. Clinical usefulness of testing for severe acute respiratory syndrome coronavirus 2 antibodies. Eur J Intern Med 2023; 107:7-16. [PMID: 36379820 PMCID: PMC9647045 DOI: 10.1016/j.ejim.2022.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/11/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022]
Abstract
In the COVID-19 pandemic era, antibody testing against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has proven an invaluable tool and herein we highlight some of the most useful clinical and/or epidemiological applications of humoral immune responses recording. Anti-spike circulating IgGs and SARS-CoV-2 neutralizing antibodies can serve as predictors of disease progression or disease prevention, whereas anti-nucleocapsid antibodies can help distinguishing infection from vaccination. Also, in the era of immunotherapies we address the validity of anti-SARS-CoV-2 antibody monitoring post-infection and/or vaccination following therapies with the popular anti-CD20 monoclonals, as well as in the context of various cancers or autoimmune conditions such as rheumatoid arthritis and multiple sclerosis. Additional crucial applications include population immunosurveillance, either at the general population or at specific communities such as health workers. Finally, we discuss how testing of antibodies in cerebrospinal fluid can inform us on the neurological complications that often accompany COVID-19.
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Affiliation(s)
- Harry Alexopoulos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Athens, 15784, Greece
| | - Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Athens, 15784, Greece
| | - Meletios-Athanasios Dimopoulos
- Department of Clinical Therapeutics, School of Medicine, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, 11528, Greece
| | - Evangelos Terpos
- Department of Clinical Therapeutics, School of Medicine, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, 11528, Greece.
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8
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COVID-19 Vaccination Campaign in Cancer Patients and Healthcare Workers-Results from a French Prospective Multicenter Cohort (PAPESCO-19). Cancers (Basel) 2022; 14:cancers14225547. [PMID: 36428640 PMCID: PMC9688516 DOI: 10.3390/cancers14225547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022] Open
Abstract
In this prospective, real-life cohort study, we followed 523 cancer patients (CP) and 579 healthcare workers (HCW) from two cancer centers to evaluate the biological and clinical results of the COVID-19 vaccination campaign. Seventy percent of the CP and 90% of the HCW received an mRNA vaccine or the AZD1222 vaccine. Seropositivity was high after the first vaccine among HCW and poor among CP. The second dose resulted in almost 100% seropositivity in both cohorts. Antibody response was higher after the second injection than the first in both populations. Despite at least two doses, 8 CP (1.5%) and 14 HCW (2.4%) were infected, corresponding either to a weak level of antibody or a new strain of virus (particularly the Omicron variant of concern). Sixteen CP and three HCW were hospitalized but none of them died from COVID-19. To conclude, this study showed that two doses of COVID-19 vaccines were crucially necessary to attain sufficient seropositivity. However, the post-vaccination antibody level declines in individuals from the two cohorts and could not totally prevent new SARS-CoV-2 infections.
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9
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Tsiakos K, Gavrielatou N, Vathiotis IA, Chatzis L, Chatzis S, Poulakou G, Kotteas E, Syrigos NK. Programmed Cell Death Protein 1 Axis Inhibition in Viral Infections: Clinical Data and Therapeutic Opportunities. Vaccines (Basel) 2022; 10:vaccines10101673. [PMID: 36298538 PMCID: PMC9611078 DOI: 10.3390/vaccines10101673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/29/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
A vital function of the immune system is the modulation of an evolving immune response. It is responsible for guarding against a wide variety of pathogens as well as the establishment of memory responses to some future hostile encounters. Simultaneously, it maintains self-tolerance and minimizes collateral tissue damage at sites of inflammation. In recent years, the regulation of T-cell responses to foreign or self-protein antigens and maintenance of balance between T-cell subsets have been linked to a distinct class of cell surface and extracellular components, the immune checkpoint molecules. The fact that both cancer and viral infections exploit similar, if not the same, immune checkpoint molecules to escape the host immune response highlights the need to study the impact of immune checkpoint blockade on viral infections. More importantly, the process through which immune checkpoint blockade completely changed the way we approach cancer could be the key to decipher the potential role of immunotherapy in the therapeutic algorithm of viral infections. This review focuses on the effect of programmed cell death protein 1/programmed death-ligand 1 blockade on the outcome of viral infections in cancer patients as well as the potential benefit from the incorporation of immune checkpoint inhibitors (ICIs) in treatment of viral infections.
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Affiliation(s)
- Konstantinos Tsiakos
- 3rd Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, 157 72 Athens, Greece
- Correspondence:
| | - Niki Gavrielatou
- Department of Pathology, School of Medicine, Yale University, New Haven, CT 06520, USA
| | - Ioannis A. Vathiotis
- 3rd Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, 157 72 Athens, Greece
| | - Loukas Chatzis
- Pathophysiology Department, Athens School of Medicine, National and Kapodistrian University of Athens, 157 72 Athens, Greece
| | - Stamatios Chatzis
- Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, “Hippokration” Hospital, 115 27 Athens, Greece
| | - Garyfallia Poulakou
- 3rd Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, 157 72 Athens, Greece
| | - Elias Kotteas
- 3rd Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, 157 72 Athens, Greece
| | - Nikolaos K. Syrigos
- 3rd Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, 157 72 Athens, Greece
- Dana-Farber Brigham Cancer Center, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02215, USA
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