ArticleArthritis research & therapy2023
CD64 as novel molecular imaging marker for the characterization of synovitis in rheumatoid arthritis.
Article in Arthritis research & therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
- Immuno-positron emission tomography in cardiovascular disease: Advances, challenges, and opportunities.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2026Review
- Theranostic Nanoprobes for Rheumatoid Arthritis: From Inflammation Visualization to Guided Precision Therapy.International journal of nanomedicine · 2026Review
- Integrative Multiomics Identifies CD64⁺ Monocytes as Potential Contributors to Age-Related Macular Degeneration.Investigative ophthalmology & visual science · 2025Article
- Identification of aging-related biomarkers for intervertebral disc degeneration in whole blood samples based on bioinformatics and machine learning.Frontiers in immunology · 2025Article
- Bispecific antibodies tethering innate receptors induce human tolerant-dendritic cells and regulatory T cells.Frontiers in immunology · 2024Article
- Application of Nanomaterials Targeting Immune Cells in the Treatment of Chronic Inflammation.International journal of nanomedicine · 2024Review
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Authors and funding
15 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundRheumatoid arthritis (RA) is one of the most prevalent and debilitating joint diseases worldwide. RA is characterized by synovial inflammation (synovitis), which is linked to the development of joint destruction. Magnetic resonance imaging and ultrasonography are widely being used to detect the presence and extent of synovitis. However, these techniques do not reveal the activation status of inflammatory cells such as macrophages that play a crucial role in synovitis and express CD64 (Fc gamma receptor (FcγR)I) which is considered as macrophage activation marker.
objectivesWe aimed to investigate CD64 expression and its correlation with pro-inflammatory cytokines and pro-damaging factors in human-derived RA synovium. Furthermore, we aimed to set up a molecular imaging modality using a radiolabeled CD64-specific antibody as a novel imaging tracer that could be used to determine the extent and phenotype of synovitis using optical and nuclear imaging.
methodsFirst, we investigated CD64 expression in synovium of early- and late-stage RA patients and studied its correlation with the expression of pro-inflammatory and tissue-damaging factors. Next, we conjugated an anti-CD64 antibody with IRDye 800CW and diethylenetriamine penta-acetic acid (DTPA; used for
resultsWe showed that CD64 is expressed in synovium of early and late-stage RA patients and that FCGR1A/CD64 expression is strongly correlated with factors known to be involved in RA progression. Combined, this makes CD64 a useful marker for imaging the extent and phenotype of synovitis. We reported higher binding of the [
conclusionTaken together, we successfully developed an optical and nuclear imaging modality to detect CD64 in human RA synovium in vivo.
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