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Tan D, Du X, Tang J, Liu H, Li M, Kang J, Li X, Li Y, Luo Y, Wang Q, Gu X, Zhao Z, Fu X, Chen X. Factors associated with the SARS-CoV-2 immunoglobulin-G titer levels in convalescent whole-blood donors: a Chinese cross-sectional study. Sci Rep 2024; 14:6072. [PMID: 38480826 PMCID: PMC10937670 DOI: 10.1038/s41598-024-56462-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/06/2024] [Indexed: 03/17/2024] Open
Abstract
Blood transfusions from convalescent Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infected patients could be used to treat patients with severe infections or immunocompromised patients. However, it is necessary to select the optimal donors to maximize the utilization of resources. In this study, we investigated the associations among body mass index (BMI), tobacco smoking, exercise frequency and duration, and alcohol consumption with the SARS-CoV-2 immunoglobulin-G (IgG) antibody titer levels with in the Chinese convalescent blood donor population. Here we show that BMI, smoking habits, and exercise frequency appear to be predictive factors for IgG levels in convalescent male blood donors. However, these variables were not observed as predictive of IgG levels in female convalescent blood donors. The findings could be used to optimize the screening for potential blood donors to treat immunocompromised or severely ill COVID-19 patients.
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Affiliation(s)
- Donglin Tan
- Department of Blood Processing, Chengdu Blood Center, Chengdu, 610041, Sichuan, China
| | - Xinman Du
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Jingyun Tang
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Humin Liu
- Department of Blood Testing, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Meng Li
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Jianxun Kang
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xiaochun Li
- Department of Blood Processing, Chengdu Blood Center, Chengdu, 610041, Sichuan, China
| | - Ying Li
- Department of Blood Testing, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Yue Luo
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Qing Wang
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xiaobo Gu
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Zonghan Zhao
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xuemei Fu
- Department of Blood Processing, Chengdu Blood Center, Chengdu, 610041, Sichuan, China.
| | - Xue Chen
- Department of Blood Processing, Chengdu Blood Center, Chengdu, 610041, Sichuan, China.
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Tang J, Liu H, Wang Q, Gu X, Wang J, Li W, Luo Y, Li Y, Deng L, Luo Y, Du X, Tan D, Fu X, Chen X. Predictors of high SARS-CoV-2 immunoglobulin G titers in COVID-19 convalescent whole-blood donors: a cross-sectional study in China. Front Immunol 2023; 14:1191479. [PMID: 37388736 PMCID: PMC10303911 DOI: 10.3389/fimmu.2023.1191479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/02/2023] [Indexed: 07/01/2023] Open
Abstract
Background Demographic information has been shown to help predict high antibody titers of COVID-19 convalescent plasma (CCP) in CCP donors. However, there is no research on the Chinese population and little evidence on whole-blood donors. Therefore, we aimed to investigate these associations among Chinese blood donors after SARS-CoV-2 infection. Methods In this cross-sectional study, 5,064 qualified blood donors with confirmed or suspected SARS-CoV-2 infection completed a self-reported questionnaire and underwent tests of SARS-CoV-2 Immunoglobulin G (IgG) antibody and ABO blood type. Logistic regression models were used to calculate odds ratios (ORs) for high SARS-CoV-2 IgG titers according to each factor. Results Totally, 1,799 participants (with SARS-CoV-2 IgG titers≥1:160) had high-titer CCPs. Multivariable analysis showed that a 10-year increment in age and earlier donation were associated with higher odds of high-titer CCP, while medical personnel was associated with lower odds. The ORs (95% CIs) of high-titer CCP were 1.17 (1.10-1.23, p< 0.001) and 1.41 (1.25-1.58, p< 0.001) for each 10-year increment in age and earlier donation, respectively. The OR of high-titer CCP was 0.75 (0.60-0.95, p = 0.02) for medical personnel. Female early donors were associated with increased odds of high-titer CCP, but this association was insignificant for later donors. Donating after 8 weeks from the onset was associated with decreased odds of having high-titer CCP compared to donating within 8 weeks from the onset, and the HR was 0.38 (95% CI: 0.22-0.64, p <0.001). There was no significant association between ABO blood type or race and the odds of high-titer CCP. Discussion Older age, earlier donation, female early donors, and non-medical-related occupations are promising predictors of high-titer CCP in Chinese blood donors. Our findings highlight the importance of CCP screening at the early stage of the pandemic.
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Affiliation(s)
- Jingyun Tang
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Humin Liu
- Department of Blood Testing, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Qing Wang
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xiaobo Gu
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Jia Wang
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Wenjun Li
- Department of Blood Testing, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Yinglan Luo
- Department of Blood Testing, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Yan Li
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Lan Deng
- Department of Blood Collection, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Yue Luo
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xinman Du
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Donglin Tan
- Department of Blood Processing, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xuemei Fu
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
| | - Xue Chen
- Blood Research Laboratory, Chengdu Blood Center, Chengdu, Sichuan, China
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Focosi D, Franchini M, Pirofski LA, Burnouf T, Paneth N, Joyner MJ, Casadevall A. COVID-19 Convalescent Plasma and Clinical Trials: Understanding Conflicting Outcomes. Clin Microbiol Rev 2022; 35:e0020021. [PMID: 35262370 PMCID: PMC9491201 DOI: 10.1128/cmr.00200-21] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Convalescent plasma (CP) recurs as a frontline treatment in epidemics because it is available as soon as there are survivors. The COVID-19 pandemic represented the first large-scale opportunity to shed light on the mechanisms of action, safety, and efficacy of CP using modern evidence-based medicine approaches. Studies ranging from observational case series to randomized controlled trials (RCTs) have reported highly variable efficacy results for COVID-19 CP (CCP), resulting in uncertainty. We analyzed variables associated with efficacy, such as clinical settings, disease severity, CCP SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) antibody levels and function, dose, timing of administration (variously defined as time from onset of symptoms, molecular diagnosis, diagnosis of pneumonia, or hospitalization, or by serostatus), outcomes (defined as hospitalization, requirement for ventilation, clinical improvement, or mortality), CCP provenance and time for collection, and criteria for efficacy. The conflicting trial results, along with both recent WHO guidelines discouraging CCP usage and the recent expansion of the FDA emergency use authorization (EUA) to include outpatient use of CCP, create confusion for both clinicians and patients about the appropriate use of CCP. A review of 30 available RCTs demonstrated that signals of efficacy (including reductions in mortality) were more likely if the CCP neutralizing titer was >160 and the time to randomization was less than 9 days. The emergence of the Omicron variant also reminds us of the benefits of polyclonal antibody therapies, especially as a bridge to the development and availability of more specific therapies.
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Affiliation(s)
- Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, Pisa, Italy
| | - Massimo Franchini
- Division of Transfusion Medicine, Carlo Poma Hospital, Mantua, Italy
| | - Liise-anne Pirofski
- Division of Infectious Diseases, Albert Einstein College of Medicine and Montefiore Medical Center, New York, New York, USA
| | - Thierry Burnouf
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Nigel Paneth
- Department of Epidemiology & Biostatistics and Pediatrics & Human Development, College of Human Medicine, Michigan State University, East Lansing, Michigan, USA
- Department of Pediatrics & Human Development, College of Human Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Michael J. Joyner
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Arturo Casadevall
- Department of Medicine, Johns Hopkins School of Public Health and School of Medicine, Baltimore, Maryland, USA
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Gallian P, Amroun A, Laperche S, Le Cam S, Brisbarre N, Malard L, Nurtop E, Isnard C, Richard P, Morel P, Tiberghien P, de Lamballerie X. Reduced neutralizing antibody potency of COVID-19 convalescent vaccinated plasma against SARS-CoV-2 Omicron variant. Vox Sang 2022; 117:971-975. [PMID: 35577569 PMCID: PMC9347889 DOI: 10.1111/vox.13279] [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: 02/04/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/28/2022]
Abstract
Background and Objective The SARS‐CoV‐2 Omicron variant displays increased infectiveness as well as mutations resulting in reduced neutralizing activity of antibodies acquired after vaccination or infection involving earlier strains. To assess the ability of vaccinated COVID‐19 convalescent plasma (CCP‐V) collected before November 2021 to seroneutralize Omicron, we compared neutralizing antibody (nAb) titres of 63 samples against Omicron and earlier B.1 (D614G) strains. Methods and Findings Relationship between anti‐Omicron titres and IgG anti‐S1 levels (binding arbitrary unit: BAU/ml) was studied. Although correlated, anti‐Omicron titres were significantly lower than anti‐B.1 titres (median = 80 [10–1280] vs. 1280 [160–10,240], p < 0.0001). Omicron nAb titres and IgG anti‐S1 levels were correlated (Spearman's rank correlation coefficient = 0.67). Anti‐S1 IgG threshold at 7000 BAU/ml may allow to discard CCP‐V without anti‐Omicron activity (nAb titre <40). Conversely, only those with highest titres (≥160) had systematically anti‐S1 IgG levels >7000 BAU/ml. Conclusion A fraction of CCP‐V collected before November 2021 retains anti‐Omicron seroneutralizing activity that may be selected by quantitative anti‐IgG assays, but such assays do not easily allow the identification of ‘high‐titre’ CCP‐V. However, collecting plasma from vaccinated donors recently infected with Omicron may be the best option to provide optimal CCP‐V for immunocompromised patients infected with this variant.
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Affiliation(s)
- Pierre Gallian
- Etablissement Français du Sang, La Plaine Saint Denis, France.,Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France
| | - Abdennour Amroun
- Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France
| | - Syria Laperche
- Etablissement Français du Sang, La Plaine Saint Denis, France.,Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France
| | - Sophie Le Cam
- Etablissement Français du Sang, La Plaine Saint Denis, France
| | - Nadège Brisbarre
- Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France.,Etablissement français du Sang Provence Alpes Côte d'Azur et Corse, Marseille, France
| | - Lucile Malard
- Etablissement Français du Sang, La Plaine Saint Denis, France
| | - Elif Nurtop
- Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France
| | - Christine Isnard
- Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France.,Etablissement français du Sang Provence Alpes Côte d'Azur et Corse, Marseille, France
| | - Pascale Richard
- Etablissement Français du Sang, La Plaine Saint Denis, France
| | - Pascal Morel
- Etablissement Français du Sang, La Plaine Saint Denis, France.,UMR RIGHT 1098, Inserm, Etablissement Français du Sang, University of Franche-Comté, Besançon, France
| | - Pierre Tiberghien
- Etablissement Français du Sang, La Plaine Saint Denis, France.,UMR RIGHT 1098, Inserm, Etablissement Français du Sang, University of Franche-Comté, Besançon, France
| | - Xavier de Lamballerie
- Unité des Virus Emergents (UVE: Aix-Marseille Univ, IRD 190, Inserm 1207), Marseille, France
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