Journal of Traditional Chinese Medicine ›› 2026, Vol. 46 ›› Issue (4): 844-853.DOI: 10.19852/j.cnki.jtcm.20251201.001

• Original Articles • Previous Articles     Next Articles

Regulatory effects and mechanisms of the acupuncture-induced complement component 1q on the high mobility group box 1 -receptor for advanced glycation end products-nuclear factor kappa-B pathway at Zusanli (ST36)

KANG Xiaochun1, WU Sinuo1, LI Ningcen2, XU Wenyue1, XU Zhifang2, Thong Yikchih1, LI Peiyun1, TU Shiwei1, MA Ning3, LI Yanwei2, DOU Baomin1, TAN Wenjun4, GUO Jing5, GUO Yi2, PAN Xingfang2(), LÜ Zhongxi2()   

  1. 1 School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
    2 Research Center of Experimental Acupuncture Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
    3 Institute of Traditional Chinese Medicine, Suzuka University of Medical Science, Suzuka 5100226, Japan
    4 Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang 110189, China
    5 School of Automation, Guangdong University of technology, Guangzhou 510006, China
  • Received:2025-05-10 Accepted:2025-09-30 Online:2026-08-15 Published:2025-12-01
  • Contact: Associate professor LÜ Zhongxi, full professor PAN Xingfang, School of Acupuncture & Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China. 1025117807@qq.com;panxingfang@163.com
  • About author:KANG Xiaochun and WU Sinuo are co-first authors and contributed equally to this work
  • Supported by:
    National Key R&D Program of China: Efficacy and Safety Verification of Intelligent Traditional Chinese Medicine Acupuncture Robot System(2022YFB4703100);National Natural Science Foundation of China: Study on the Effect and Mechanism of C1q Protein in the Ordered and Controlled Inflammatory Response in Acupuncture Area(82105023);Mechanism of electroacupuncture-driven Surface-modified Graded Cell-derived Glycosylated Exo-miR-146a targeting T Cell Immunoglobulin and Mucin Domain-containing Protein 3 to Regulate Exhausted T Cells and Alleviate Sepsis Immunosuppression(82305370);Initial Dynamic Regulation Mechanism of Acupuncture Effect via Physicochemical Coupling Network in Acupoint Microenvironment(82030125);Young Elite Scientists Sponsorship Program by China Association of Chinese Medicine: Initiation Mechanism of Acupuncture Analgesia Mediated by High Mobility Group Box 1 at Acupoints(2023-QNRC2-B04)

Abstract:

OBJECTIVE: To investigate what are the crucial regulators and mechanisms involved in regulating the inflammatory responses at Zusanli (ST36).

METHODS: Initially, we utilized enzyme-linked immunosorbent assay (ELISA) to detect the variations of high mobility group box 1 (HMGB1), interleukin-10 (IL-10), and complement component 1q (C1q) concentrations at Zusanli (ST36) on day 1 (D1), day 3 (D3), day 5 (D5) and day 7 (D7) after acupuncture to clearly depict the time-dependent changes of these inflammatory substances. Subsequently, we utilized C1qa-knockout (C1qa-KO) mice to investigate the role of acupuncture-induced C1q in inflammatory responses at Zusanli (ST36). We utilized hematoxylin and eosin staining to observe the inflammatory morphological alterations, examined the activation of the NF-κB pathway by immunofluorescence and assessed HMGB1 and IL-10 changes using ELISA. Lastly, to uncover the specific mechanism by which C1q regulates the acupuncture-induced inflammatory responses at Zusanli (ST36), we employed Western blot (WB) to measure the expression levels of receptor of advanced glycation end products (RAGE), leukocyte associated immunoglobulin like receptor 1 (LAIR-1), and src homology region 2 domain-containing protein tyrosine phosphatase 1 (SHP-1) proteins and used immunofluorescence to detect the polarization of classically activated macrophages (M1) and alternatively activated macrophages (M2).

RESULTS: Compared with the wild-type group, the levels of HMGB1 and C1q of acupuncture (ACU) group at Zusanli (ST36) were increased on D3 after acupuncture, while the level of IL-10 decreased. With continued higher level of HMGB1, both C1q and IL-10 level were increased on D7. After knocking out C1q, compared with the ACU group, the C1qa-KO+acupuncture (C1q-/-+ACU) group exhibited further aggravated inflammatory infiltrations in the epidermal layer, dermal layer, and muscular layer. At Zusanli (ST36), the level of HMGB1 was further increased, accompanied by an intensified activation of the NF-κB pathway. Meanwhile, the level of IL-10 exhibited a downward tendency, which jointly led to the exacerbation of inflammatory responses at Zusanli (ST36). In comparison with the ACU group, the C1q-/-+ACU group showed a reduction in SHP-1 levels, a downward tendency of LAIR-1 expression, whereas the expression of RAGE exhibited an upward inclination. Furthermore, the number of M1 macrophages at Zusanli (ST36) increased significantly, in stark contrast to a pronounced decline in the number of M2 macrophages.

CONCLUSION: Zusanli (ST36) acupuncture initiates a time-regulated inflammatory cascade might through the following mechanism: HMGB1 release (D1) triggers C1q upregulation (D3), culminating on D7 with C1q binding to LAIR-1, which recruits SHP-1 to inhibit HMGB1-RAGE-NF-κB signaling viaM2 polarization and IL-10 feedback, ensuring precisely controlled inflammation at acupoints.

Key words: acupuncture, HMGB1 protein, receptor for advanced glycation end products, NF-kappa B, complement C1q, inflammatory response regulation, sequential and controllable

Cite this article

KANG Xiaochun, WU Sinuo, LI Ningcen, XU Wenyue, XU Zhifang, Thong Yikchih, LI Peiyun, TU Shiwei, MA Ning, LI Yanwei, DOU Baomin, TAN Wenjun, GUO Jing, GUO Yi, PAN Xingfang, LÜ Zhongxi. Regulatory effects and mechanisms of the acupuncture-induced complement component 1q on the high mobility group box 1 -receptor for advanced glycation end products-nuclear factor kappa-B pathway at Zusanli (ST36)[J]. Journal of Traditional Chinese Medicine, 2026, 46(4): 844-853.