Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone

Jiangyan Wei,1,* Xin Yang,1,* Xiaobo Ge,2,* Luopeng Zhao,3 Xueyan Liu,1,2 Jiarun Zhang,1 Jun Zhou,1 Chengcheng Zhang,1 Wenshan Li,1,2 Zhijuan Li,1 Tianli Lyu,1 Yizhan Wang,1 Fang Yuan,1 Lu Liu,1 Bin Li1 1Department of Acupuncture and Moxibustion, Beijing Hospital...

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Main Authors: Wei J, Yang X, Ge X, Zhao L, Liu X, Zhang J, Zhou J, Zhang C, Li W, Li Z, Lyu T, Wang Y, Yuan F, Liu L, Li B
Format: Article
Language:English
Published: Dove Medical Press 2025-06-01
Series:Journal of Inflammation Research
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Online Access:https://www.dovepress.com/therapeutic-effects-of-fire-needling-acupuncture-on-pain-relief-and-ca-peer-reviewed-fulltext-article-JIR
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author Wei J
Yang X
Ge X
Zhao L
Liu X
Zhang J
Zhou J
Zhang C
Li W
Li Z
Lyu T
Wang Y
Yuan F
Liu L
Li B
author_facet Wei J
Yang X
Ge X
Zhao L
Liu X
Zhang J
Zhou J
Zhang C
Li W
Li Z
Lyu T
Wang Y
Yuan F
Liu L
Li B
author_sort Wei J
collection DOAJ
description Jiangyan Wei,1,* Xin Yang,1,* Xiaobo Ge,2,* Luopeng Zhao,3 Xueyan Liu,1,2 Jiarun Zhang,1 Jun Zhou,1 Chengcheng Zhang,1 Wenshan Li,1,2 Zhijuan Li,1 Tianli Lyu,1 Yizhan Wang,1 Fang Yuan,1 Lu Liu,1 Bin Li1 1Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing, 100010, People’s Republic of China; 2Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China; 3Beijing Institute of Traditional Chinese Medicine, Beijing, 100010, People’s Republic of China*These authors contributed equally to this workCorrespondence: Bin Li, Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, 23 Meishuguan Back Street, Dongcheng District, Beijing, 100010, People’s Republic of China, Email libin@bjzhongyi.com Lu Liu, Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, 23 Meishuguan Back Street, Dongcheng District, Beijing, 100010, People’s Republic of China, Email lululalavictor1985@126.comPurpose: Knee osteoarthritis (KOA) is a prevalent degenerative disease impacting bone and joint health. Clinical studies indicate that fire needling acupuncture can alleviate joint stiffness, pain, and dysfunction in KOA. Previous research demonstrated its efficacy in reducing pain, mitigating cartilage damage, and regulating macrophage polarization, but its effects on subchondral bone remain unclear. This study aimed to evaluate the therapeutic effects of fire needling acupuncture on subchondral bone in KOA.Methods: Sprague-Dawley rats were divided into three groups: control (CON), monosodium iodoacetate (MIA), and fire needling acupuncture (FNA) (n=6 per group). A KOA model was established using 0.3 mg/50 μL MIA, followed by acupuncture at acupoints SP10, ST34, ST35, EX-LE5, and ST36 twice weekly. Evaluations included body weight, joint diameter, weight distribution, and mechanical withdrawal threshold. Micro-CT imaging assessed tibial plateau bone mass changes. Histological evaluations used HE, Safranin O/Fast Green, and toluidine blue staining. Immunohistochemistry examined COL2, MMP9, and MMP13 expression, while macrophage polarization was analyzed using immunofluorescence for F4/80, iNOS, and Arg-1. TRAP staining assessed osteoclast activity, and immunofluorescence for CD31/Emcn and VEGF evaluated angiogenesis in subchondral bone.Results: Fire needling acupuncture significantly improved weight distribution and mechanical withdrawal thresholds, reduced synovial inflammation and abnormal changes in subchondral bone, and preserved cartilage integrity in MIA-induced KOA rats. Notably, F4/80 and iNOS expression levels decreased, while Arg-1 expression increased after treatment. Additionally, TRAP, CD31/Emcn, and VEGF expression in subchondral bone decreased following fire needling acupuncture.Conclusion: Fire needling acupuncture mitigates pain behavior, synovial inflammation, cartilage degradation, and abnormal changes in subchondral bone in MIA-induced KOA rats. The therapeutic mechanism may involve modulation of synovial macrophage polarization and subchondral bone angiogenesis. Further research is warranted to elucidate the precise molecular pathways and the interaction between macrophage polarization and angiogenesis.Keywords: fire needling acupuncture, knee osteoarthritis, cartilage degradation, macrophages polarization, subchondral bone angiogenesis
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spelling doaj-art-c4eaadaef5104ff0bfbfe561a4d26ce62025-08-20T03:26:57ZengDove Medical PressJournal of Inflammation Research1178-70312025-06-01Volume 18Issue 174597475103729Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral BoneWei J0Yang X1Ge X2Zhao L3Liu X4Zhang JZhou J5Zhang C6Li W7Li Z8Lyu T9Wang YYuan FLiu L10Li B11Beijing Hospital of Traditional Chinese MedicineDepartment of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese MedicineGraduate SchoolDepartment of Acupuncture and MoxibustionacupunctureBeijing Hospital of Traditional Chinese Medicine,Department of Acupuncture and MoxibustionDepartment of acupuncture and moxibustionBeijing Hospital of Traditional Chinese MedicineAcupuncture and Moxibustion DepartmentDepartment of Acupuncture and MoxibustionDepartment of Acupuncture and MoxibustionJiangyan Wei,1,* Xin Yang,1,* Xiaobo Ge,2,* Luopeng Zhao,3 Xueyan Liu,1,2 Jiarun Zhang,1 Jun Zhou,1 Chengcheng Zhang,1 Wenshan Li,1,2 Zhijuan Li,1 Tianli Lyu,1 Yizhan Wang,1 Fang Yuan,1 Lu Liu,1 Bin Li1 1Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, Beijing, 100010, People’s Republic of China; 2Graduate School, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China; 3Beijing Institute of Traditional Chinese Medicine, Beijing, 100010, People’s Republic of China*These authors contributed equally to this workCorrespondence: Bin Li, Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, 23 Meishuguan Back Street, Dongcheng District, Beijing, 100010, People’s Republic of China, Email libin@bjzhongyi.com Lu Liu, Department of Acupuncture and Moxibustion, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Key Laboratory of Acupuncture Neuromodulation, 23 Meishuguan Back Street, Dongcheng District, Beijing, 100010, People’s Republic of China, Email lululalavictor1985@126.comPurpose: Knee osteoarthritis (KOA) is a prevalent degenerative disease impacting bone and joint health. Clinical studies indicate that fire needling acupuncture can alleviate joint stiffness, pain, and dysfunction in KOA. Previous research demonstrated its efficacy in reducing pain, mitigating cartilage damage, and regulating macrophage polarization, but its effects on subchondral bone remain unclear. This study aimed to evaluate the therapeutic effects of fire needling acupuncture on subchondral bone in KOA.Methods: Sprague-Dawley rats were divided into three groups: control (CON), monosodium iodoacetate (MIA), and fire needling acupuncture (FNA) (n=6 per group). A KOA model was established using 0.3 mg/50 μL MIA, followed by acupuncture at acupoints SP10, ST34, ST35, EX-LE5, and ST36 twice weekly. Evaluations included body weight, joint diameter, weight distribution, and mechanical withdrawal threshold. Micro-CT imaging assessed tibial plateau bone mass changes. Histological evaluations used HE, Safranin O/Fast Green, and toluidine blue staining. Immunohistochemistry examined COL2, MMP9, and MMP13 expression, while macrophage polarization was analyzed using immunofluorescence for F4/80, iNOS, and Arg-1. TRAP staining assessed osteoclast activity, and immunofluorescence for CD31/Emcn and VEGF evaluated angiogenesis in subchondral bone.Results: Fire needling acupuncture significantly improved weight distribution and mechanical withdrawal thresholds, reduced synovial inflammation and abnormal changes in subchondral bone, and preserved cartilage integrity in MIA-induced KOA rats. Notably, F4/80 and iNOS expression levels decreased, while Arg-1 expression increased after treatment. Additionally, TRAP, CD31/Emcn, and VEGF expression in subchondral bone decreased following fire needling acupuncture.Conclusion: Fire needling acupuncture mitigates pain behavior, synovial inflammation, cartilage degradation, and abnormal changes in subchondral bone in MIA-induced KOA rats. The therapeutic mechanism may involve modulation of synovial macrophage polarization and subchondral bone angiogenesis. Further research is warranted to elucidate the precise molecular pathways and the interaction between macrophage polarization and angiogenesis.Keywords: fire needling acupuncture, knee osteoarthritis, cartilage degradation, macrophages polarization, subchondral bone angiogenesishttps://www.dovepress.com/therapeutic-effects-of-fire-needling-acupuncture-on-pain-relief-and-ca-peer-reviewed-fulltext-article-JIRfire needling acupunctureknee osteoarthritiscartilage degradationmacrophages polarizationsubchondral bone angiogenesis
spellingShingle Wei J
Yang X
Ge X
Zhao L
Liu X
Zhang J
Zhou J
Zhang C
Li W
Li Z
Lyu T
Wang Y
Yuan F
Liu L
Li B
Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone
Journal of Inflammation Research
fire needling acupuncture
knee osteoarthritis
cartilage degradation
macrophages polarization
subchondral bone angiogenesis
title Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone
title_full Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone
title_fullStr Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone
title_full_unstemmed Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone
title_short Therapeutic Effects of Fire Needling Acupuncture on Pain Relief and Cartilage Protection in MIA-Induced Knee Osteoarthritis Rats: The Role of Macrophage Polarization in Synovium and Angiogenesis in Subchondral Bone
title_sort therapeutic effects of fire needling acupuncture on pain relief and cartilage protection in mia induced knee osteoarthritis rats the role of macrophage polarization in synovium and angiogenesis in subchondral bone
topic fire needling acupuncture
knee osteoarthritis
cartilage degradation
macrophages polarization
subchondral bone angiogenesis
url https://www.dovepress.com/therapeutic-effects-of-fire-needling-acupuncture-on-pain-relief-and-ca-peer-reviewed-fulltext-article-JIR
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