1
|
Bach FA, Muñoz Sandoval D, Mazurczyk M, Themistocleous Y, Rawlinson TA, Harding AC, Kemp A, Silk SE, Barrett JR, Edwards NJ, Ivens A, Rayner JC, Minassian AM, Napolitani G, Draper SJ, Spence PJ. A systematic analysis of the human immune response to Plasmodium vivax. J Clin Invest 2023; 133:e152463. [PMID: 37616070 PMCID: PMC10575735 DOI: 10.1172/jci152463] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/22/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUNDThe biology of Plasmodium vivax is markedly different from that of P. falciparum; how this shapes the immune response to infection remains unclear. To address this shortfall, we inoculated human volunteers with a clonal field isolate of P. vivax and tracked their response through infection and convalescence.METHODSParticipants were injected intravenously with blood-stage parasites and infection dynamics were tracked in real time by quantitative PCR. Whole blood samples were used for high dimensional protein analysis, RNA sequencing, and cytometry by time of flight, and temporal changes in the host response to P. vivax were quantified by linear regression. Comparative analyses with P. falciparum were then undertaken using analogous data sets derived from prior controlled human malaria infection studies.RESULTSP. vivax rapidly induced a type I inflammatory response that coincided with hallmark features of clinical malaria. This acute-phase response shared remarkable overlap with that induced by P. falciparum but was significantly elevated (at RNA and protein levels), leading to an increased incidence of pyrexia. In contrast, T cell activation and terminal differentiation were significantly increased in volunteers infected with P. falciparum. Heterogeneous CD4+ T cells were found to dominate this adaptive response and phenotypic analysis revealed unexpected features normally associated with cytotoxicity and autoinflammatory disease.CONCLUSIONP. vivax triggers increased systemic interferon signaling (cf P. falciparum), which likely explains its reduced pyrogenic threshold. In contrast, P. falciparum drives T cell activation far in excess of P. vivax, which may partially explain why falciparum malaria more frequently causes severe disease.TRIAL REGISTRATIONClinicalTrials.gov NCT03797989.FUNDINGThe European Union's Horizon 2020 Research and Innovation programme, the Wellcome Trust, and the Royal Society.
Collapse
Affiliation(s)
- Florian A. Bach
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Diana Muñoz Sandoval
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
- Insitute of Microbiology, Universidad San Francisco de Quito, Quito, Ecuador
| | | | | | | | - Adam C. Harding
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Alison Kemp
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Sarah E. Silk
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Jordan R. Barrett
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Nick J. Edwards
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Alasdair Ivens
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Julian C. Rayner
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Angela M. Minassian
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Giorgio Napolitani
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, and
| | - Simon J. Draper
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Philip J. Spence
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| |
Collapse
|
2
|
Mora MJ, de Los Ángeles Bayas-Rea R, Mejía L, Cruz C, Guerra S, Calle P, Sandoval DM, Galarza JM, Zapata-Mena S. Identification of human leukocyte antigen in precancerous and cancerous cervical lesions from Ecuadorian women. Infect Genet Evol 2022; 105:105365. [PMID: 36108945 DOI: 10.1016/j.meegid.2022.105365] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/02/2022] [Accepted: 09/10/2022] [Indexed: 06/15/2023]
Abstract
Cervical cancer is the fourth most common type of cancer in women. Worldwide, it is a public health problem with around 604,127 women diagnosed per year and 341,831 deaths. Cervical cancer and persistent high-risk human papillomavirus (HPV) infection are highly associated. However, other factors are also involved, such as viral load, HPV variants, sexual behavior, and genetic factors. The host immune response against HPV has been widely studied and it has shown associations with development of cervical cancer. The human leukocyte antigen (HLA) genes are related to the persistence of HPV infection and progression to cervical cancer because of their role in controlling T-cell mediated immune response to clear the infection. In Ecuador, there is scarce information about HLA and HPV infection with high-risk genotypes in the population. This study aimed to identify host-specific HLA alleles in women with cervical intraepithelial neoplasia (CIN) II and III, and cancer infected with HPV-16, 58, and 52. In this study, we included 51 samples previously identified as positive for HPV-16, 58, and 52 from 12 Ecuadorian provinces. As a result, we found that HLA-A*02, HLA-B*35, HLA-C*04, HLA-DRB1*04, and HLA-DQB1*03 alleles were the most frequent, these alleles have been associated with cervical cancer in previous studies; nevertheless, we did not find a statistically significant association between HLA alleles, HPV genotype, and histopathological lesion. This is a baseline study to uncover possible relationships between HLA and HPV to elucidate why this virus can develop a persistent infection in some women leading to the development of cervical cancer.
Collapse
Affiliation(s)
- María José Mora
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Rosa de Los Ángeles Bayas-Rea
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Lorena Mejía
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | | | | | | | - Diana Muñoz Sandoval
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito, Ecuador; Department of Infectious Disease, Imperial College London, London, UK
| | | | - Sonia Zapata-Mena
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito USFQ, Quito, Ecuador.
| |
Collapse
|
3
|
Alexander JL, Liu Z, Muñoz Sandoval D, Reynolds C, Ibraheim H, Anandabaskaran S, Saifuddin A, Castro Seoane R, Anand N, Nice R, Bewshea C, D'Mello A, Constable L, Jones GR, Balarajah S, Fiorentino F, Sebastian S, Irving PM, Hicks LC, Williams HRT, Kent AJ, Linger R, Parkes M, Kok K, Patel KV, Teare JP, Altmann DM, Goodhand JR, Hart AL, Lees CW, Boyton RJ, Kennedy NA, Ahmad T, Powell N. COVID-19 vaccine-induced antibody and T-cell responses in immunosuppressed patients with inflammatory bowel disease after the third vaccine dose (VIP): a multicentre, prospective, case-control study. Lancet Gastroenterol Hepatol 2022; 7:1005-1015. [PMID: 36088954 PMCID: PMC9458592 DOI: 10.1016/s2468-1253(22)00274-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND COVID-19 vaccine-induced antibody responses are reduced in patients with inflammatory bowel disease (IBD) taking anti-TNF or tofacitinib after two vaccine doses. We sought to assess whether immunosuppressive treatments were associated with reduced antibody and T-cell responses in patients with IBD after a third vaccine dose. METHODS VIP was a multicentre, prospective, case-control study done in nine centres in the UK. We recruited immunosuppressed patients with IBD and non-immunosuppressed healthy individuals. All participants were aged 18 years or older. The healthy control group had no diagnosis of IBD and no current treatment with systemic immunosuppressive therapy for any other indication. The immunosuppressed patients with IBD had an established diagnosis of Crohn's disease, ulcerative colitis, or unclassified IBD using standard definitions of IBD, and were receiving established treatment with one of six immunosuppressive regimens for at least 12 weeks at the time of first dose of SARS-CoV-2 vaccination. All participants had to have received three doses of an approved COVID-19 vaccine. SARS-CoV-2 spike antibody binding and T-cell responses were measured in all participant groups. The primary outcome was anti-SARS-CoV-2 spike (S1 receptor binding domain [RBD]) antibody concentration 28-49 days after the third vaccine dose, adjusted by age, homologous versus heterologous vaccine schedule, and previous SARS-CoV-2 infection. The primary outcome was assessed in all participants with available data. FINDINGS Between Oct 18, 2021, and March 29, 2022, 352 participants were included in the study (thiopurine n=65, infliximab n=46, thiopurine plus infliximab combination therapy n=49, ustekinumab n=44, vedolizumab n=50, tofacitinib n=26, and healthy controls n=72). Geometric mean anti-SARS-CoV-2 S1 RBD antibody concentrations increased in all groups following a third vaccine dose, but were significantly lower in patients treated with infliximab (2736·8 U/mL [geometric SD 4·3]; p<0·0001), infliximab plus thiopurine (1818·3 U/mL [6·7]; p<0·0001), and tofacitinib (8071·5 U/mL [3·1]; p=0·0018) compared with the healthy control group (16 774·2 U/mL [2·6]). There were no significant differences in anti-SARS-CoV-2 S1 RBD antibody concentrations between the healthy control group and patients treated with thiopurine (12 019·7 U/mL [2·2]; p=0·099), ustekinumab (11 089·3 U/mL [2·8]; p=0·060), or vedolizumab (13 564·9 U/mL [2·4]; p=0·27). In multivariable modelling, lower anti-SARS-CoV-2 S1 RBD antibody concentrations were independently associated with infliximab (geometric mean ratio 0·15 [95% CI 0·11-0·21]; p<0·0001), tofacitinib (0·52 [CI 0·31-0·87]; p=0·012), and thiopurine (0·69 [0·51-0·95]; p=0·021), but not with ustekinumab (0·64 [0·39-1·06]; p=0·083), or vedolizumab (0·84 [0·54-1·30]; p=0·43). Previous SARS-CoV-2 infection (1·58 [1·22-2·05]; p=0·0006) was independently associated with higher anti-SARS-CoV-2 S1 RBD antibody concentrations and older age (0·88 [0·80-0·97]; p=0·0073) was independently associated with lower anti-SARS-CoV-2 S1 RBD antibody concentrations. Antigen-specific T-cell responses were similar in all groups, except for recipients of tofacitinib without evidence of previous infection, where T-cell responses were significantly reduced relative to healthy controls (p=0·021). INTERPRETATION A third dose of COVID-19 vaccine induced a boost in antibody binding in immunosuppressed patients with IBD, but these responses were reduced in patients taking infliximab, infliximab plus thiopurine, and tofacitinib. Tofacitinib was also associated with reduced T-cell responses. These findings support continued prioritisation of immunosuppressed groups for further vaccine booster dosing, particularly patients on anti-TNF and JAK inhibitors. FUNDING Pfizer.
Collapse
Affiliation(s)
- James L Alexander
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Zhigang Liu
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | | | | | - Hajir Ibraheim
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Sulak Anandabaskaran
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, St Mark's Hospital and Academic Institute, London, UK
| | - Aamir Saifuddin
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, St Mark's Hospital and Academic Institute, London, UK
| | - Rocio Castro Seoane
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Nikhil Anand
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Rachel Nice
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK; Department of Clinical Chemistry, Biochemistry, Exeter Clinical Laboratory International, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Claire Bewshea
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Andrea D'Mello
- Division of Medicine and Integrated Care, Imperial College Healthcare NHS Trust, London, UK
| | - Laura Constable
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Gareth R Jones
- Department of Gastroenterology, Western General Hospital, NHS Lothian, Edinburgh, UK; Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Sharmili Balarajah
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Francesca Fiorentino
- Department of Surgery and Cancer, Imperial College London, London, UK; Nightingale-Saunders Clinical Trials and Epidemiology Unit, King's Clinical Trials Unit, King's College London, London, UK
| | - Shaji Sebastian
- Department of Gastroenterology, Hull University Teaching Hospitals NHS Trust, Hull, UK; Hull York Medical School, University of Hull, Hull, UK
| | - Peter M Irving
- School of Immunology and Microbial Sciences, King's College London, London, UK; Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Lucy C Hicks
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Horace R T Williams
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Alexandra J Kent
- Department of Gastroenterology, King's College Hospital, London, UK
| | - Rachel Linger
- The NIHR Bioresource, University of Cambridge, Cambridge, UK
| | - Miles Parkes
- The NIHR Bioresource, University of Cambridge, Cambridge, UK; Department of Gastroenterology, Cambridge University Hospitals NHS Trust, Cambridge, UK
| | - Klaartje Kok
- Department of Gastroenterology, Bart's Health NHS Trust, London, UK
| | - Kamal V Patel
- Department of Gastroenterology, St George's Hospital NHS Trust, London, UK
| | - Julian P Teare
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Daniel M Altmann
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - James R Goodhand
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK; Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Ailsa L Hart
- Department of Gastroenterology, St Mark's Hospital and Academic Institute, London, UK
| | - Charlie W Lees
- Department of Gastroenterology, Western General Hospital, NHS Lothian, Edinburgh, UK; Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Rosemary J Boyton
- Department of Infectious Disease, Imperial College London, London, UK; Lung Division, Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Nicholas A Kennedy
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK; Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Tariq Ahmad
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK; Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Nick Powell
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK; Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK.
| |
Collapse
|
4
|
Doykov I, Baldwin T, Spiewak J, Gilmour KC, Gibbons JM, Pade C, Reynolds CJ, Áine McKnight, Noursadeghi M, Maini MK, Manisty C, Treibel T, Captur G, Fontana M, Boyton RJ, Altmann DM, Brooks T, Semper A, Moon JC, Kevin Mills, Heywood WE, Abiodun A, Alfarih M, Alldis Z, Altmann DM, Amin OE, Andiapen M, Artico J, Augusto JB, Baca GL, Bailey SN, Bhuva AN, Boulter A, Bowles R, Boyton RJ, Bracken OV, O’Brien B, Brooks T, Bullock N, Butler DK, Captur G, Carr O, Champion N, Chan C, Chandran A, Coleman T, Couto de Sousa J, Couto-Parada X, Cross E, Cutino-Moguel T, D’Arcangelo S, Davies RH, Douglas B, Di Genova C, Dieobi-Anene K, Diniz MO, Ellis A, Feehan K, Finlay M, Fontana M, Forooghi N, Francis S, Gibbons JM, Gillespie D, Gilroy D, Hamblin M, Harker G, Hemingway G, Hewson J, Heywood W, Hickling LM, Hicks B, Hingorani AD, Howes L, Itua I, Jardim V, Lee WYJ, Jensen M, Jones J, Jones M, Joy G, Kapil V, Kelly C, Kurdi H, Lambourne J, Lin KM, Liu S, Lloyd A, Louth S, Maini MK, Mandadapu V, Manisty C, McKnight Á, Menacho K, Mfuko C, Mills K, Millward S, Mitchelmore O, Moon C, Moon J, Sandoval DM, Murray SM, Noursadeghi M, Otter A, Pade C, Palma S, Parker R, Patel K, Pawarova M, Petersen SE, Piniera B, Pieper FP, Rannigan L, Rapala A, Reynolds CJ, Richards A, Robathan M, Rosenheim J, Rowe C, Royds M, West JS, Sambile G, Schmidt NM, Selman H, Semper A, Seraphim A, Simion M, Smit A, Sugimoto M, Swadling L, Taylor S, Temperton N, Thomas S, Thornton GD, Treibel TA, Tucker A, Varghese A, Veerapen J, Vijayakumar M, Warner T, Welch S, White H, Wodehouse T, Wynne L, Zahedi D. Quantitative, multiplexed, targeted proteomics for ascertaining variant specific SARS-CoV-2 antibody response. Cell Rep Methods 2022; 2:100279. [PMID: 35975199 PMCID: PMC9372021 DOI: 10.1016/j.crmeth.2022.100279] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/24/2022] [Accepted: 08/05/2022] [Indexed: 02/09/2023]
Abstract
Determining the protection an individual has to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) variants of concern (VoCs) is crucial for future immune surveillance, vaccine development, and understanding of the changing immune response. We devised an informative assay to current ELISA-based serology using multiplexed, baited, targeted proteomics for direct detection of multiple proteins in the SARS-CoV-2 anti-spike antibody immunocomplex. Serum from individuals collected after infection or first- and second-dose vaccination demonstrates this approach and shows concordance with existing serology and neutralization. Our assays show altered responses of both immunoglobulins and complement to the Alpha (B.1.1.7), Beta (B.1.351), and Delta (B.1.617.1) VoCs and a reduced response to Omicron (B1.1.1529). We were able to identify individuals who had prior infection, and observed that C1q is closely associated with IgG1 (r > 0.82) and may better reflect neutralization to VoCs. Analyzing additional immunoproteins beyond immunoglobulin (Ig) G, provides important information about our understanding of the response to infection and vaccination.
Collapse
Affiliation(s)
- Ivan Doykov
- Translational Mass Spectrometry Research Group, Genetics & Genomic Medicine Department, UCL Institute of Child Health, London, UK.,Great Ormond Street Biomedical Research Centre, UCL Institute of Child Health London
| | - Tomas Baldwin
- Translational Mass Spectrometry Research Group, Genetics & Genomic Medicine Department, UCL Institute of Child Health, London, UK
| | - Justyna Spiewak
- Translational Mass Spectrometry Research Group, Genetics & Genomic Medicine Department, UCL Institute of Child Health, London, UK
| | - Kimberly C Gilmour
- Great Ormond Street Children's Hospital NHS Foundation Trust, Great Ormond Street, London WC1N 3JH, UK
| | - Joseph M Gibbons
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Corinna Pade
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | | | - Áine McKnight
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mahdad Noursadeghi
- Division of Infection and Immunity, University College London, London, UK
| | - Mala K Maini
- Division of Infection and Immunity, University College London, London, UK
| | - Charlotte Manisty
- St. Bartholomew's Hospital, Barts Health NHS Trust, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | - Thomas Treibel
- St. Bartholomew's Hospital, Barts Health NHS Trust, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | - Gabriella Captur
- Institute of Cardiovascular Science, University College London, London, UK.,Royal Free London NHS Foundation Trust, Pond Street, London NW3 2QG, UK
| | - Marianna Fontana
- Institute of Cardiovascular Science, University College London, London, UK.,Royal Free London NHS Foundation Trust, Pond Street, London NW3 2QG, UK
| | - Rosemary J Boyton
- Department of Infectious Disease, Imperial College London, London, UK.,Lung Division, Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Daniel M Altmann
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Tim Brooks
- UK Health Security Agency, Porton Down, UK
| | | | | | - James C Moon
- St. Bartholomew's Hospital, Barts Health NHS Trust, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | - Kevin Mills
- Translational Mass Spectrometry Research Group, Genetics & Genomic Medicine Department, UCL Institute of Child Health, London, UK.,Great Ormond Street Biomedical Research Centre, UCL Institute of Child Health London
| | - Wendy E Heywood
- Translational Mass Spectrometry Research Group, Genetics & Genomic Medicine Department, UCL Institute of Child Health, London, UK.,Great Ormond Street Biomedical Research Centre, UCL Institute of Child Health London
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Salkeld J, Themistocleous Y, Barrett JR, Mitton CH, Rawlinson TA, Payne RO, Hou MM, Khozoee B, Edwards NJ, Nielsen CM, Sandoval DM, Bach FA, Nahrendorf W, Ramon RL, Baker M, Ramos-Lopez F, Folegatti PM, Quinkert D, Ellis KJ, Poulton ID, Lawrie AM, Cho JS, Nugent FL, Spence PJ, Silk SE, Draper SJ, Minassian AM. Repeat controlled human malaria infection of healthy UK adults with blood-stage Plasmodium falciparum: Safety and parasite growth dynamics. Front Immunol 2022; 13:984323. [PMID: 36072606 PMCID: PMC9444061 DOI: 10.3389/fimmu.2022.984323] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 07/01/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
In endemic settings it is known that natural malaria immunity is gradually acquired following repeated exposures. Here we sought to assess whether similar acquisition of blood-stage malaria immunity would occur following repeated parasite exposure by controlled human malaria infection (CHMI). We report the findings of repeat homologous blood-stage Plasmodium falciparum (3D7 clone) CHMI studies VAC063C (ClinicalTrials.gov NCT03906474) and VAC063 (ClinicalTrials.gov NCT02927145). In total, 24 healthy, unvaccinated, malaria-naïve UK adult participants underwent primary CHMI followed by drug treatment. Ten of these then underwent secondary CHMI in the same manner, and then six of these underwent a final tertiary CHMI. As with primary CHMI, malaria symptoms were common following secondary and tertiary infection, however, most resolved within a few days of treatment and there were no long term sequelae or serious adverse events related to CHMI. Despite detectable induction and boosting of anti-merozoite serum IgG antibody responses following each round of CHMI, there was no clear evidence of anti-parasite immunity (manifest as reduced parasite growth in vivo) conferred by repeated challenge with the homologous parasite in the majority of volunteers. However, three volunteers showed some variation in parasite growth dynamics in vivo following repeat CHMI that were either modest or short-lived. We also observed no major differences in clinical symptoms or laboratory markers of infection across the primary, secondary and tertiary challenges. However, there was a trend to more severe pyrexia after primary CHMI and the absence of a detectable transaminitis post-treatment following secondary and tertiary infection. We hypothesize that this could represent the initial induction of clinical immunity. Repeat homologous blood-stage CHMI is thus safe and provides a model with the potential to further the understanding of naturally acquired immunity to blood-stage infection in a highly controlled setting.
Collapse
Affiliation(s)
- Jo Salkeld
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | | | - Jordan R. Barrett
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Celia H. Mitton
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | | | - Ruth O. Payne
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Mimi M. Hou
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Baktash Khozoee
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Nick J. Edwards
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Carolyn M. Nielsen
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Diana Muñoz Sandoval
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Florian A. Bach
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Wiebke Nahrendorf
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Megan Baker
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | | | | | - Doris Quinkert
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | | | - Ian D. Poulton
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Alison M. Lawrie
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Jee-Sun Cho
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Fay L. Nugent
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Philip J. Spence
- Institute of Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Immunity, Infection and Evolution, University of Edinburgh, Edinburgh, United Kingdom
| | - Sarah E. Silk
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Simon J. Draper
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Angela M. Minassian
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
- *Correspondence: Angela M. Minassian,
| |
Collapse
|
6
|
Reynolds CJ, Pade C, Gibbons JM, Otter AD, Lin KM, Muñoz Sandoval D, Pieper FP, Butler DK, Liu S, Joy G, Forooghi N, Treibel TA, Manisty C, Moon JC, Semper A, Brooks T, McKnight Á, Altmann DM, Boyton RJ, Abbass H, Abiodun A, Alfarih M, Alldis Z, Altmann DM, Amin OE, Andiapen M, Artico J, Augusto JB, Baca GL, Bailey SNL, Bhuva AN, Boulter A, Bowles R, Boyton RJ, Bracken OV, O'Brien B, Brooks T, Bullock N, Butler DK, Captur G, Carr O, Champion N, Chan C, Chandran A, Coleman T, Couto de Sousa J, Couto-Parada X, Cross E, Cutino-Moguel T, D'Arcangelo S, Davies RH, Douglas B, Di Genova C, Dieobi-Anene K, Diniz MO, Ellis A, Feehan K, Finlay M, Fontana M, Forooghi N, Francis S, Gibbons JM, Gillespie D, Gilroy D, Hamblin M, Harker G, Hemingway G, Hewson J, Heywood W, Hickling LM, Hicks B, Hingorani AD, Howes L, Itua I, Jardim V, Lee WYJ, Jensen M, Jones J, Jones M, Joy G, Kapil V, Kelly C, Kurdi H, Lambourne J, Lin KM, Liu S, Lloyd A, Louth S, Maini MK, Mandadapu V, Manisty C, McKnight Á, Menacho K, Mfuko C, Mills K, Millward S, Mitchelmore O, Moon C, Moon J, Muñoz Sandoval D, Murray SM, Noursadeghi M, Otter A, Pade C, Palma S, Parker R, Patel K, Pawarova M, Petersen SE, Piniera B, Pieper FP, Rannigan L, Rapala A, Reynolds CJ, Richards A, Robathan M, Rosenheim J, Rowe C, Royds M, Sackville West J, Sambile G, Schmidt NM, Selman H, Semper A, Seraphim A, Simion M, Smit A, Sugimoto M, Swadling L, Taylor S, Temperton N, Thomas S, Thornton GD, Treibel TA, Tucker A, Varghese A, Veerapen J, Vijayakumar M, Warner T, Welch S, White H, Wodehouse T, Wynne L, Zahedi D, Chain B, Moon JC. Immune boosting by B.1.1.529 (Omicron) depends on previous SARS-CoV-2 exposure. Science 2022; 377:eabq1841. [PMID: 35699621 PMCID: PMC9210451 DOI: 10.1126/science.abq1841] [Citation(s) in RCA: 185] [Impact Index Per Article: 92.5] [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: 03/23/2022] [Accepted: 06/06/2022] [Indexed: 12/15/2022]
Abstract
The Omicron, or Pango lineage B.1.1.529, variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) carries multiple spike mutations with high transmissibility and partial neutralizing antibody (nAb) escape. Vaccinated individuals show protection against severe disease, often attributed to primed cellular immunity. We investigated T and B cell immunity against B.1.1.529 in triple BioNTech BNT162b2 messenger RNA-vaccinated health care workers (HCWs) with different SARS-CoV-2 infection histories. B and T cell immunity against previous variants of concern was enhanced in triple-vaccinated individuals, but the magnitude of T and B cell responses against B.1.1.529 spike protein was reduced. Immune imprinting by infection with the earlier B.1.1.7 (Alpha) variant resulted in less durable binding antibody against B.1.1.529. Previously infection-naïve HCWs who became infected during the B.1.1.529 wave showed enhanced immunity against earlier variants but reduced nAb potency and T cell responses against B.1.1.529 itself. Previous Wuhan Hu-1 infection abrogated T cell recognition and any enhanced cross-reactive neutralizing immunity on infection with B.1.1.529.
Collapse
Affiliation(s)
| | - Corinna Pade
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Joseph M Gibbons
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | | | - Kai-Min Lin
- Department of Infectious Disease, Imperial College London, London, UK
| | | | | | - David K Butler
- Department of Infectious Disease, Imperial College London, London, UK
| | - Siyi Liu
- Department of Infectious Disease, Imperial College London, London, UK
| | - George Joy
- St Bartholomew's Hospital, Barts Health NHS Trust, London, UK
| | - Nasim Forooghi
- St Bartholomew's Hospital, Barts Health NHS Trust, London, UK
| | - Thomas A Treibel
- St Bartholomew's Hospital, Barts Health NHS Trust, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | - Charlotte Manisty
- St Bartholomew's Hospital, Barts Health NHS Trust, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | - James C Moon
- St Bartholomew's Hospital, Barts Health NHS Trust, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | | | | | | | - Tim Brooks
- UK Health Security Agency, Porton Down, UK
| | - Áine McKnight
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Daniel M Altmann
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Rosemary J Boyton
- Department of Infectious Disease, Imperial College London, London, UK.,Lung Division, Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Lin S, Kennedy NA, Saifuddin A, Sandoval DM, Reynolds CJ, Seoane RC, Kottoor SH, Pieper FP, Lin KM, Butler DK, Chanchlani N, Nice R, Chee D, Bewshea C, Janjua M, McDonald TJ, Sebastian S, Alexander JL, Constable L, Lee JC, Murray CD, Hart AL, Irving PM, Jones GR, Kok KB, Lamb CA, Lees CW, Altmann DM, Boyton RJ, Goodhand JR, Powell N, Ahmad T. Antibody decay, T cell immunity and breakthrough infections following two SARS-CoV-2 vaccine doses in inflammatory bowel disease patients treated with infliximab and vedolizumab. Nat Commun 2022; 13:1379. [PMID: 35296643 PMCID: PMC8927425 DOI: 10.1038/s41467-022-28517-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [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: 09/30/2021] [Accepted: 01/26/2022] [Indexed: 12/15/2022] Open
Abstract
Anti tumour necrosis factor (anti-TNF) drugs increase the risk of serious respiratory infection and impair protective immunity following pneumococcal and influenza vaccination. Here we report SARS-CoV-2 vaccine-induced immune responses and breakthrough infections in patients with inflammatory bowel disease, who are treated either with the anti-TNF antibody, infliximab, or with vedolizumab targeting a gut-specific anti-integrin that does not impair systemic immunity. Geometric mean [SD] anti-S RBD antibody concentrations are lower and half-lives shorter in patients treated with infliximab than vedolizumab, following two doses of BNT162b2 (566.7 U/mL [6.2] vs 4555.3 U/mL [5.4], p <0.0001; 26.8 days [95% CI 26.2 - 27.5] vs 47.6 days [45.5 - 49.8], p <0.0001); similar results are also observed with ChAdOx1 nCoV-19 vaccination (184.7 U/mL [5.0] vs 784.0 U/mL [3.5], p <0.0001; 35.9 days [34.9 - 36.8] vs 58.0 days [55.0 - 61.3], p value < 0.0001). One fifth of patients fail to mount a T cell response in both treatment groups. Breakthrough SARS-CoV-2 infections are more frequent (5.8% (201/3441) vs 3.9% (66/1682), p = 0.0039) in patients treated with infliximab than vedolizumab, and the risk of breakthrough SARS-CoV-2 infection is predicted by peak anti-S RBD antibody concentration after two vaccine doses. Irrespective of the treatments, higher, more sustained antibody levels are observed in patients with a history of SARS-CoV-2 infection prior to vaccination. Our results thus suggest that adapted vaccination schedules may be required to induce immunity in at-risk, anti-TNF-treated patients.
Collapse
Affiliation(s)
- Simeng Lin
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Nicholas A Kennedy
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Aamir Saifuddin
- Department of Gastroenterology, St Marks Hospital and Academic Institute, London, UK
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | | | | | - Rocio Castro Seoane
- Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Sherine H Kottoor
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | | | - Kai-Min Lin
- Department of Infectious Disease, Imperial College London, London, UK
| | - David K Butler
- Department of Infectious Disease, Imperial College London, London, UK
| | - Neil Chanchlani
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Rachel Nice
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
- Department of Biochemistry, Exeter Clinical Laboratory International, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Desmond Chee
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Claire Bewshea
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Malik Janjua
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Timothy J McDonald
- Department of Biochemistry, Exeter Clinical Laboratory International, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Shaji Sebastian
- IBD Unit, Department of Gastroenterology, Hull University Teaching Hospitals NHS Trust, Hull, UK
- Hull York Medical School, University of Hull, Hull, UK
| | - James L Alexander
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Laura Constable
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - James C Lee
- Department of Gastroenterology, Royal Free London NHS Foundation Trust, London, UK
- Genetic Mechanisms of Disease Laboratory, The Francis Crick Institute, London, UK
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
| | - Charles D Murray
- Department of Gastroenterology, Royal Free London NHS Foundation Trust, London, UK
| | - Ailsa L Hart
- Department of Gastroenterology, St Marks Hospital and Academic Institute, London, UK
| | - Peter M Irving
- Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust, London, UK
- School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Gareth-Rhys Jones
- Department of Gastroenterology, Western General Hospital, NHS Lothian, Edinburgh, UK
- Centre for Inflammation Research, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Klaartje B Kok
- Department of Gastroenterology, Royal London Hospital, Barts Health NHS Trust, London, UK
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine, Queen Mary University of London, London, UK
| | - Christopher A Lamb
- Department of Gastroenterology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Charlie W Lees
- Department of Gastroenterology, Western General Hospital, NHS Lothian, Edinburgh, UK
- Institute of Genetic and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Daniel M Altmann
- Department of Immunology and Inflammation, Imperial College London, London, United Kingdom
| | - Rosemary J Boyton
- Department of Infectious Disease, Imperial College London, London, UK
- Lung Division, Royal Brompton Hospital and Harefield Hospitals, London, UK
| | - James R Goodhand
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Nick Powell
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- Department of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK
| | - Tariq Ahmad
- Department of Gastroenterology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK.
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK.
| |
Collapse
|
8
|
Reynolds CJ, Gibbons JM, Pade C, Lin KM, Sandoval DM, Pieper F, Butler DK, Liu S, Otter AD, Joy G, Menacho K, Fontana M, Smit A, Kele B, Cutino-Moguel T, Maini MK, Noursadeghi M, Brooks T, Semper A, Manisty C, Treibel TA, Moon JC, McKnight Á, Altmann DM, Boyton RJ. Heterologous infection and vaccination shapes immunity against SARS-CoV-2 variants. Science 2022; 375:183-192. [PMID: 34855510 PMCID: PMC10186585 DOI: 10.1126/science.abm0811] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022]
Abstract
The impact of the initial severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infecting strain on downstream immunity to heterologous variants of concern (VOCs) is unknown. Studying a longitudinal healthcare worker cohort, we found that after three antigen exposures (infection plus two vaccine doses), S1 antibody, memory B cells, and heterologous neutralization of B.1.351, P.1, and B.1.617.2 plateaued, whereas B.1.1.7 neutralization and spike T cell responses increased. Serology using the Wuhan Hu-1 spike receptor binding domain poorly predicted neutralizing immunity against VOCs. Neutralization potency against VOCs changed with heterologous virus encounter and number of antigen exposures. Neutralization potency fell differentially depending on targeted VOCs over the 5 months from the second vaccine dose. Heterologous combinations of spike encountered during infection and vaccination shape subsequent cross-protection against VOC, with implications for future-proof next-generation vaccines.
Collapse
Affiliation(s)
| | - Joseph M. Gibbons
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Corinna Pade
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Kai-Min Lin
- Department of Infectious Disease, Imperial College London, London, UK
| | | | - Franziska Pieper
- Department of Infectious Disease, Imperial College London, London, UK
| | - David K. Butler
- Department of Infectious Disease, Imperial College London, London, UK
| | - Siyi Liu
- Department of Infectious Disease, Imperial College London, London, UK
| | | | - George Joy
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
| | - Katia Menacho
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
| | | | | | - Beatrix Kele
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
| | | | - Mala K. Maini
- Division of Infection and Immunity, University College London, London, UK
| | - Mahdad Noursadeghi
- Division of Infection and Immunity, University College London, London, UK
| | - COVIDsortium Immune Correlates Network‡
- Department of Infectious Disease, Imperial College London, London, UK
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- UK Health Security Agency, Porton Down, UK
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
- Royal Free London NHS Foundation Trust, London, UK
- Division of Infection and Immunity, University College London, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
- Department of Immunology and Inflammation, Imperial College London, London, UK
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
| | - Tim Brooks
- UK Health Security Agency, Porton Down, UK
| | | | - Charlotte Manisty
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
| | - Thomas A. Treibel
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
| | - James C. Moon
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
| | - COVIDsortium Investigators‡
- Department of Infectious Disease, Imperial College London, London, UK
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- UK Health Security Agency, Porton Down, UK
- St. Bartholomew’s Hospital, Barts Health NHS Trust, London, UK
- Royal Free London NHS Foundation Trust, London, UK
- Division of Infection and Immunity, University College London, London, UK
- Institute of Cardiovascular Science, University College London, London, UK
- Department of Immunology and Inflammation, Imperial College London, London, UK
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
| | - Áine McKnight
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Daniel M. Altmann
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Rosemary J. Boyton
- Department of Infectious Disease, Imperial College London, London, UK
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
| |
Collapse
|
9
|
O'Rourke LM, Tooze R, Turner M, Sandoval DM, Carter RH, Tybulewicz VL, Fearon DT. CD19 as a membrane-anchored adaptor protein of B lymphocytes: costimulation of lipid and protein kinases by recruitment of Vav. Immunity 1998; 8:635-45. [PMID: 9620684 DOI: 10.1016/s1074-7613(00)80568-3] [Citation(s) in RCA: 148] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CD19 is a coreceptor that amplifies signaling by membrane immunoglobulin (mIg) to promote responses of the B lymphocyte to T-dependent antigens. Vav is a guanine nucleotide exchange factor for the Rho, Rac, Cdc42 family of small GTPases. We found that coligating mIg and CD19 causes a synergistic increase in the tyrosine phosphorylation of CD19. Phosphorylated tyrosine-391 of CD19 binds Vav to mediate a sustained increase in intracellular Ca2+ concentration. This response correlates with activation by the CD19-Vav complex of phosphatidylinositol 4-phosphate 5-kinase for the synthesis of phosphatidylinositol 4,5-bisphosphate. Interaction of CD19 with Vav also mediates the synergistic activation of the mitogen-activated protein kinase JNK. Therefore, CD19 is a membrane adaptor protein that recruits Vav for the activation of lipid and protein kinases.
Collapse
Affiliation(s)
- L M O'Rourke
- Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom
| | | | | | | | | | | | | |
Collapse
|
10
|
Sandoval DM, Gernat AG. Evaluation of early feed restriction on egg size and hen performance. Poult Sci 1996; 75:311-4. [PMID: 8778721 DOI: 10.3382/ps.0750311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Feed restriction was implemented in a factorial design (2x4) when pullets were at either 5 or 10% egg production. Periods of feed restriction were for 0, 3, 4, or 5 d. Two trials each using 672 Hy-line W-77 White Leghorn Hens 19 wk of age were identified and randomly assigned to 16, 2x3 m pens at a density of 7 birds per square meter. Data recorded were days at sexual maturity, egg production, mortality, feed consumption, feed conversion, egg weight, body weight gain, and body weight uniformity. Hens placed on feed restriction reached sexual maturity 3 to 5 d later (P < 0.05) than the unrestricted birds. No significant main effects or interactions were found for egg production, feed consumption, feed conversion, mortality, egg weight, body weight gain, or body weight uniformity for the initial 15 wk or the entire egg production period. These results suggest that early egg size was not increased with the practice of early feed restriction nor did short- or long-term laying performance improve.
Collapse
Affiliation(s)
- D M Sandoval
- Escuela Agricola Panamericana, Departamento de Zootecnia, Tegucigalpa, Honduras
| | | |
Collapse
|
11
|
Sandoval DM, Alarcón GS, Morgan SL. Adverse events in methotrexate-treated rheumatoid arthritis patients. Br J Rheumatol 1995; 34 Suppl 2:49-56. [PMID: 8535650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Methotrexate (MTX) is an antifolate that has been in use for the treatment of rheumatoid arthritis (RA) since the early 1980s. Its efficacy has been clearly documented [1-4] and its administration early in the course of the disease is now generally accepted [5]. Side-effects from low weekly pulse MTX have been reported [1-6] and it was our initial experience that toxicity, rather than lack of efficacy, was the major factor limiting its clinical use [7]. However, when compared with other disease-modifying antirheumatic drugs, its toxicity appears to be comparable to that of antimalarials [8, 9]. The purpose of this paper is to discuss the possible mechanisms responsible for toxicity due to MTX used at low weekly pulse doses for the treatment of RA, as well as the different toxic manifestations reported in the literature.
Collapse
Affiliation(s)
- D M Sandoval
- Department of Medicine, University of Alabama at Birmingham, USA
| | | | | |
Collapse
|
12
|
Sandoval DM, Marques VM. Acute myocardial infarction in a patient post CABG with minimal coronary lesion. Rev Port Cardiol 1995; 14:147-9. [PMID: 7766438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- D M Sandoval
- Department of Medicine, St. John's Episcopal Hospital, Far Rockaway, New York, USA
| | | |
Collapse
|
13
|
Abstract
The steady-state levels of alpha-melanotropin-stimulating hormone (alpha-MSH)-related peptides were examined in the pars intermedia of the reptile Anolis carolinensis as a function of background adaptation. After a 7-day period, the content of immunoreactive alpha-MSH-related material in the pars intermedia of light-adapted animals was approximately fourfold higher than that of animals maintained on a dark background for the same period. The immunoreactive alpha-MSH-related material present in the pars intermedia of light-adapted and dark-adapted animals was separately analyzed by gel filtration chromatography, reverse-phase HPLC, and cation-exchange chromatography. For light-adapted animals the major form of alpha-MSH had an apparent molecular weight of 1.5 kDa and a net charge of +4 at pH 3.5. Following reverse-phase HPLC this material eluted as a single peak of immunoreactivity with a retention time distinct from that of both mammalian ACTH(1-13)amide and N-acetyl-ACTH(1-13)amide. For dark-adapted animals a peak of alpha-MSH-sized material with an apparent molecular weight of 1.5 kDa was also detected. Following reverse-phase HPLC analysis this material eluted as an apparent single peak of immunoreactivity with a retention time distinct from that of the mammalian standards. Subsequent analysis of this major HPLC peak by cation-exchange chromatography revealed the presence of at least two forms of immunoreactive alpha-MSH. These forms differed in relative proportions. The major peak of immunoreactivity had a net charge of +4, whereas the minor peak had a net charge of +3. The +3 immunoreactive form was not detected to any appreciable degree in light-adapted animals.
Collapse
Affiliation(s)
- R M Dores
- University of Denver, Department of Biological Sciences, Colorado 80208
| | | | | |
Collapse
|