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Choida V, Hall-Craggs M, Jebson BR, Fisher C, Leandro M, Wedderburn LR, Ciurtin C. Biomarkers of Response to Biologic Therapy in Juvenile Idiopathic Arthritis. Front Pharmacol 2021; 11:635823. [PMID: 33603671 PMCID: PMC7884612 DOI: 10.3389/fphar.2020.635823] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 12/31/2020] [Indexed: 01/22/2023] Open
Abstract
Background: Juvenile idiopathic arthritis (JIA) is the most common chronic inflammatory arthritis of childhood, characterized by various clinical phenotypes associated with variable prognosis. Significant progress has been achieved with the use of biologic treatments, which specifically block pro-inflammatory molecules involved in the disease pathogenesis. The most commonly used biologics in JIA are monoclonal antibodies and recombinant proteins targeting interleukins 1 (IL-1) and 6 (IL-6), and tumor necrosis factor α (TNF-α). Several biomarkers have been investigated in JIA. Aims: To assess the level of evidence available regarding the role of biomarkers in JIA related to guiding clinical and therapeutic decisions, providing disease prognostic information, facilitating disease activity monitoring and assessing biologic treatment response in JIA, as well as propose new strategies for biologic therapy-related biomarker use in JIA. Methods: We searched PubMed for relevant literature using predefined key words corresponding to several categories of biomarkers to assess their role in predicting and assessing biologic treatment response and clinical remission in JIA. Results: We reviewed serological, cellular, genetic, transcriptomic and imaging biomarkers, to identify candidates that are both well-established and widely used, as well as newly investigated in JIA on biologic therapy. We evaluated their role in management of JIA as well as identified the unmet needs for new biomarker discovery and better clinical applications. Conclusion: Although there are no ideal biomarkers in JIA, we identified serological biomarkers with potential clinical utility. We propose strategies of combining biomarkers of response to biologics in JIA, as well as routine implementation of clinically acceptable imaging biomarkers for improved disease assessment performance.
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Affiliation(s)
- Varvara Choida
- Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, Division of Medicine, University College London, London, United Kingdom
- Department of Adolescent Rheumatology, University College London Hospital, London, United Kingdom
| | | | - Bethany R. Jebson
- Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, Division of Medicine, University College London, London, United Kingdom
- University College London Great Ormond Street Institute for Child Health, London, United Kingdom
| | - Corinne Fisher
- Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, Division of Medicine, University College London, London, United Kingdom
- Department of Adolescent Rheumatology, University College London Hospital, London, United Kingdom
| | - Maria Leandro
- Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, Division of Medicine, University College London, London, United Kingdom
- Department of Adolescent Rheumatology, University College London Hospital, London, United Kingdom
| | - Lucy R. Wedderburn
- Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, Division of Medicine, University College London, London, United Kingdom
- University College London Great Ormond Street Institute for Child Health, London, United Kingdom
- NIHR Biomedical Research Centre at Great Ormond Street Hospital, London, United Kingdom
| | - Coziana Ciurtin
- Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, Division of Medicine, University College London, London, United Kingdom
- Department of Adolescent Rheumatology, University College London Hospital, London, United Kingdom
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Zhu S, Lv H, Luo Y, Huang Q, Shen J. JNK Pathway-Associated Phosphatase as a Serum Marker for Disease Activity and Treatment Outcome of Juvenile Idiopathic Arthritis. TOHOKU J EXP MED 2021; 253:19-28. [PMID: 33441511 DOI: 10.1620/tjem.253.19] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Juvenile idiopathic arthritis (JIA) is a heterogeneous autoimmune disease characterized by arthritis of unknown etiology. JNK pathway-associated phosphatase (JKAP) is reported to be a negative regulator of T-cell activation, but its clinical role in JIA is unknown. This study aimed to investigate the correlation of JKAP with disease activity and treatment response to a tumor necrosis factor (TNF) inhibitor, etanercept (ETN), in JIA patients. Totally, 104 JIA patients (6.9 ± 2.7 years old) and 100 age- and sex-matched healthy controls (HCs) (7.2 ± 2.4 years old) were enrolled, and their serum samples were collected for measuring JKAP by enzyme-linked immunoassay. In JIA patients, after 24-week ETN treatment, clinical response was assessed based on the American College of Rheumatology pediatric criteria (ACRpedi) 50 criteria. Results showed that JKAP levels were significantly lower in JIA patients compared with HCs, and of good value in differentiating JIA patients from HCs. Among JIA patients, higher JKAP levels were associated with lower disease activity indexes, including C-reactive protein, number of joints with active arthritis, physician's global assessment of disease activity, and the present history of disease-modifying antirheumatic drugs; higher baseline JKAP levels were correlated with worse ACRpedi 50 response to ETN at week 24, and was also an independent predictive factor for worse ACRpedi 50 response to ETN. Thus, it may be inappropriate to use ETN for JIA patients with higher JKAP levels. In conclusion, serum JKAP is a potential biomarker for JIA activity and treatment response to a TNF inhibitor.
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Affiliation(s)
- Songbai Zhu
- Department of Pediatrics Nephrology, Maternal and Child Health Hospital of Hubei Province
| | - Huijuan Lv
- Department of Rheumatology and Immunology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology
| | - Yuanyuan Luo
- Department of Pediatrics, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology
| | - Qing Huang
- Department of Pediatrics Nephrology, Maternal and Child Health Hospital of Hubei Province
| | - Jiangman Shen
- Department of Rheumatology and Immunology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology
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