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Frodlund M, Nived P, Chatzidionysiou K, Södergren A, Klingberg E, Hansson M, Ohlsson S, Pin E, Bengtsson A, Klareskog L, Kapetanovic M. The serological immunogenicity of the third and fourth doses of COVID-19 vaccine in patients with inflammatory rheumatic diseases on different biologic or targeted DMARDs: a Swedish nationwide study (COVID-19-REUMA). Microbiol Spectr 2024; 12:e0298123. [PMID: 38441463 DOI: 10.1128/spectrum.02981-23] [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: 07/29/2023] [Accepted: 12/05/2023] [Indexed: 04/06/2024] Open
Abstract
Studies investigating the immunogenicity of additional COVID-19 vaccine doses in immunosuppressed patients with inflammatory rheumatic diseases (IRD) are still limited. The objective was to explore the antibody response including response to omicron virus subvariants (sBA.1 and sBS.2) after third and fourth COVID-19 vaccine doses in Swedish IRD patients treated with immunomodulating drugs compared to controls. Antibody levels to spike wild-type antigens (full-length protein and S1) and the omicron variants sBA.1 and sBA.2 (full-length proteins) were measured. A positive response was defined as having antibody levels over cut-off or ≥fourfold increase in post-vaccination levels for both antigens. Patients with arthritis, vasculitis, and other autoimmune diseases (n = 414), and controls (n = 61) receiving biologic/targeted synthetic disease-modifying anti-rheumatic drugs (DMARDs) with or without conventional synthetic DMARDs participated. Of these, blood samples were available for 370 patients and 52 controls after three doses, and 65 patients and 15 controls after four doses. Treatment groups after three vaccine doses were rituximab (n = 133), abatacept (n = 22), IL6r inhibitors (n = 71), JAnus Kinase inhibitors (JAK-inhibitors) (n = 56), tumor necrosis factor inhibitor (TNF-inhibitors) (n = 61), IL12/23/17 inhibitors (n = 27), and controls (n = 52). The percentage of responders after three and four vaccine doses was lower in rituximab-treated patients (59% and 57%) compared to controls (100%) (P < 0.001). After three doses, the percentage of responders in all other groups was 100%, including response to omicron sBA.1 and sBA.2. In rituximab-treated patients, higher baseline immunoglobulin G (IgG) and longer time-period between rituximab and vaccination predicted better response. In this Swedish nationwide study including IRD patients three and four COVID-19 vaccine doses were immunogenic in patients treated with IL6r inhibitors, TNF-inhibitors, JAK-inhibitors, and IL12/23/17-inhibitors but not in rituximab. As >50% of rituximab patients responded to vaccines including omicron subvariants, these patients should be prioritized for additional vaccine doses. IMPORTANCE Results from this study provide further evidence that additional doses of COVID-19 vaccines are immunogenic and result in satisfactory antibody response in a majority of patients with inflammatory rheumatic diseases (IRD) receiving potent immunomodulating treatments such as biological or targeted disease-modifying anti-rheumatic drugs (DMARDs) given as monotherapy or combined with traditional DMARDs. We observed that rituximab treatment, both as monotherapy and combined with csDMARDs, impaired antibody response, and only roughly 50% of patients developed a satisfactory antibody response including response to omicron subvariants after the third vaccine. In addition, higher IgG levels at the last rituximab course before the third vaccine dose and a longer time after the last rituximab treatment increased the chance of a satisfactory antibody response. These results indicate that rituximab-treated patients should be prioritized for additional vaccine doses. CLINICAL TRIALS EudraCT (European Union Drug Regulating Authorities Clinical Trials Database) with number 2021-000880-63.
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Affiliation(s)
- Martina Frodlund
- Department of Biomedical and Clinical Sciences, Division of Inflammation and Infection/Rheumatology, Linköping University, Linköping, Sweden
| | - Per Nived
- Department of Clinical Sciences, Section for Rheumatology, Lund University, Lund and Skåne University Hospital, Lund, Lund, , Sweden
| | - Katerina Chatzidionysiou
- Department of Medicine, Rheumatology Unit, Karolinska University Hospital and Karolinska Institutet, Stockholm, Solna, Sweden
| | - Anna Södergren
- Department of Public Health and Clinical Medicine/Rheumatology, Umeå University, Umeå, Sweden
| | - Eva Klingberg
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Monica Hansson
- Department of Medicine, Rheumatology Unit, Karolinska University Hospital and Karolinska Institutet, Stockholm, Solna, Sweden
| | - Sophie Ohlsson
- Department of Clinical Sciences, Section for Nephrology, Lund University, Lund and Skåne University Hospital, Lund, Lund, , Sweden
| | - Elisa Pin
- Department of Protein Science, SciLifeLab, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Anders Bengtsson
- Department of Clinical Sciences, Section for Rheumatology, Lund University, Lund and Skåne University Hospital, Lund, Lund, , Sweden
| | - Lars Klareskog
- Department of Medicine, Rheumatology Unit, Karolinska University Hospital and Karolinska Institutet, Stockholm, Solna, Sweden
| | - Meliha Kapetanovic
- Department of Clinical Sciences, Section for Rheumatology, Lund University, Lund and Skåne University Hospital, Lund, Lund, , Sweden
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Pierantoni M, Hammerman M, Silva Barreto I, Larsson D, Notermans T, Bodey AJ, Eliasson P, Isaksson H. Spatiotemporal and microstructural characterization of heterotopic ossification in healing rat Achilles tendons. FASEB J 2023; 37. [PMID: 37219456 DOI: 10.1096/fj.202201018rrr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 04/18/2023] [Accepted: 05/05/2023] [Indexed: 05/24/2023]
Abstract
Achilles tendon rupture is a common debilitating medical condition. The healing process is slow and can be affected by heterotopic ossification (HO), which occurs when pathologic bone-like tissue is deposited instead of the soft collagenous tendon tissue. Little is known about the temporal and spatial progression of HO during Achilles tendon healing. In this study we characterize HO deposition, microstructure, and location at different stages of healing in a rat model. We use phase contrast-enhanced synchrotron microtomography, a state-of-the-art technique that allows 3D imaging at high-resolution of soft biological tissues without invasive or time-consuming sample preparation. The results increase our understanding of HO deposition, from the early inflammatory phase of tendon healing, by showing that the deposition is initiated as early as one week after injury in the distal stump and mostly growing on preinjury HO deposits. Later, more deposits form first in the stumps and then all over the tendon callus, merging into large, calcified structures, which occupy up to 10% of the tendon volume. The HOs were characterized by a looser connective trabecular-like structure and a proteoglycan-rich matrix containing chondrocyte-like cells with lacunae. The study shows the potential of 3D imaging at high-resolution by phase-contrast tomography to better understand ossification in healing tendons.
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Affiliation(s)
- Maria Pierantoni
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Malin Hammerman
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | | | - Daniel Larsson
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Thomas Notermans
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | | | - Pernilla Eliasson
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, Lund, Sweden
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