ArticleFrontiers in immunology2022
Engineered M2a macrophages for the treatment of osteoarthritis.
Article in Frontiers in immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
21 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.
- Global research trends on macrophage polarization in osteoarthritis: a bibliometric analysis.Frontiers in immunology · 2025Pooled it
- Biomimetic cellular sponges for neutralizing inflammatory cytokines in osteoarthritic joints.Materials today. Bio · 2026Article
- Cellular Products with Anti-Inflammatory Properties for the Treatment of Cartilage Lesions.International journal of molecular sciences · 2026Review
- Osteoarthritis: molecular pathogenesis and potential therapeutic options.Signal transduction and targeted therapy · 2026Review
- Integrated analysis of bulk RNA and single-cell RNA sequencing data reveals potential biomarkers and immune infiltrates associated with N7-methylguanosine in osteoarthritis.International journal of surgery (London, England) · 2026Article
- Metrnl and macrophage polarization: role in skeletal muscle homeostasis and therapeutic potential.Frontiers in immunology · 2026Review
- Research progress on the role of CD14 in osteoarthritis.Frontiers in immunology · 2026Review
- Synovial immune control failure in osteoarthritis: from maintenance of tissue homeostasis to inflammatory niche formation.Frontiers in immunology · 2026Review
- Targeting inflammation with chimeric antigen receptor macrophages using a signal switch.Nature biomedical engineering · 2025Article
- Macrophage Polarization in Heterotopic Ossification: Inflammation, Osteogenesis, and Emerging Therapeutic Targets.International journal of molecular sciences · 2025Review
- The role of the immune system in osteoarthritis: mechanisms, challenges and future directions.Nature reviews. Rheumatology · 2025Review
- Functional roles of immune cells in osteoporosis.Frontiers in immunology · 2025Review
- Review
- Review
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- The Role of Copper-Induced M2 Macrophage Polarization in Protecting Cartilage Matrix in Osteoarthritis.Medical science monitor : international medical journal of experimental and clinical research · 2024Article
- Emerging Roles of Macrophage Polarization in Osteoarthritis: Mechanisms and Therapeutic Strategies.Orthopaedic surgery · 2024Review
- Article
- Review
- The Dual Role of Small Extracellular Vesicles in Joint Osteoarthritis: Their Global and Non-Coding Regulatory RNA Molecule-Based Pathogenic and Therapeutic Effects.Biomolecules · 2023Review
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Macrophage is a central regulator of innate immunity. Its M2 subsets, such as interstitial synovial macrophages, have been found to play critical roles in suppressing chronic inflammation and maintaining homeostasis within the joint. These macrophages have great potential as a disease-modifying cell therapy for osteoarthritis (OA). However, this has not yet been studied. Methods: Macrophages were isolated from the bone marrow of rats. We constructed a stable macrophage that "locked" in anti-inflammatory and pro-regenerative M2a polarity (L-M2a) by simultaneously knocking out tumor necrosis factor receptor 1 (TNFR1) and overexpressing IL-4 using Cas9-ribonuclear proteins (Cas9-RNP) and electroporation. Results: L-M2a macrophages displayed a typical anti-inflammatory phenotype similar to that of M2 macrophages Conclusion: The engineered L-M2a macrophages maintained a superior anti-inflammatory and pro-regenerative capacity in the inflammatory OA microenvironment and represents an ideal new strategy for the disease-modifying therapy of OA.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.