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Liu Y, Sun X, Wang L, Dou Y, Tian Y, Yu T, Zhang Y, Zhao Q, Lu J, Feng Y, Wang J, Liu X, Shang Y, Li C, Yang Q. Sequential Targeted Enzyme-Instructed Self-Assembly Supramolecular Nanofibers to Attenuate Intervertebral Disc Degeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2408678. [PMID: 39221659 DOI: 10.1002/adma.202408678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/06/2024] [Indexed: 09/04/2024]
Abstract
As an age-related disease, intervertebral disc degeneration is closely related to inflammation and aging. Inflammatory cytokines and cellular senescence collectively contribute to the degradation of intervertebral disc. Blocking this synergy reduces disc extracellular matrix damage caused by inflammation and aging. In this study, drug-loaded nanofibers with sequential targeting functions are constructed through intelligent response, hydrophilicity, and in situ self-assembly empowerment of flurbiprofen. The peptide precursor responds to the cleavage of overexpressed MMP-2 in the degenerative intervertebral disc microenvironment (intracellular and extracellular), resulting in the formation of self-assembled nanofibers that enable the on-demand release of flurbiprofen and COX-2 response. In vitro, Comp. 1 (Flurbiprofen-GFFYPLGLAGEEEERGD) reduces the expression of inflammation-related genes and proteins and the polarization of M1 macrophages by competitively inhibiting COX-2 and increases the expression of extracellular matrix proteins COL-2 and aggrecan. Additionally, it can reduce the expression of Senescence-Associated Secretory Phenotype and DNA damage in aged nucleus pulposus cells and promote the recovery of proliferation and cell cycle. In vivo, drug-loaded nanofibers delay intervertebral disc degeneration by inhibiting inflammation and preventing the accumulation of senescent cells. Therefore, the sequentially targeted self-assembled drug-loaded nanofibers can delay intervertebral disc degeneration by blocking the synergistic effect of inflammatory cytokines and cellular senescence.
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Affiliation(s)
- Yang Liu
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Xun Sun
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Lianlei Wang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Yiming Dou
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Ye Tian
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Tianyu Yu
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Yiming Zhang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Qingqian Zhao
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
| | - Jiayi Lu
- Academy of Interdisciplinary Studies on Intelligent Molecules, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, P. R. China
| | - Yinyin Feng
- Academy of Interdisciplinary Studies on Intelligent Molecules, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, P. R. China
| | - Jiayu Wang
- Academy of Interdisciplinary Studies on Intelligent Molecules, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, P. R. China
| | - Xinyu Liu
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, P. R. China
| | - Yuna Shang
- Academy of Interdisciplinary Studies on Intelligent Molecules, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, P. R. China
| | - Chunju Li
- Academy of Interdisciplinary Studies on Intelligent Molecules, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300387, P. R. China
| | - Qiang Yang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, P. R. China
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Sun Q, Ni Y, Wang K, Zhang H, Liu J, Xu L, Zhao Y. Rhodium nanozyme mitigates RPE degeneration and preserves vision in age-related macular degeneration via antioxidant and anti-inflammatory mechanisms. Mater Today Bio 2024; 28:101230. [PMID: 39296359 PMCID: PMC11408860 DOI: 10.1016/j.mtbio.2024.101230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 08/17/2024] [Accepted: 09/03/2024] [Indexed: 09/21/2024] Open
Abstract
Age-related macular degeneration (AMD) is the leading cause of blindness among elderly people worldwide. However, there are currently no effective treatments for AMD. Oxidative stress-induced retinal pigment epithelium (RPE) degeneration and the inflammatory response are the main causes of AMD. In this study, a polyethylene glycol (PEG)-coated rhodium nanozyme (PEG-RhZ) with excellent reactive oxygen species (ROS) and reactive nitrogen species (RNS) elimination capability was synthesized for the treatment of AMD. PEG-RhZs protected RPE cell viability and barrier function upon exposure to oxidative stress stimuli. Additionally, microglial migration and iNOS, IL-1β and TNF-α expression were inhibited by PEG-RhZs. In the acute phase of the AMD model, PEG-RhZs significantly alleviated RPE oxidative damage and inhibited microglial activation. In the late stage of the AMD model, PEG-RhZs reduced photoreceptor loss and improved vision impairment. Furthermore, PEG-RhZs showed good biocompatibility and stability both in vitro and in vivo. Collectively, our findings suggest the therapeutic potential of PEG-RhZs for AMD treatment. STATEMENT OF SIGNIFICANCE: AMD is a kind of retinal degenerative disease that poses heavy health burden globally. PEG-RhZs exhibiting robust ROS and RNS scavenging capabilities have shown promise in safeguarding retinal pigment epithelium (RPE) from oxidative stress, suppressing microglia activation and the secretion of pro-inflammatory molecules, mitigating loss of retinal photoreceptor cells, and ameliorating visual impairment. The commendable antioxidant properties, biological safety, and biostability of PEG-RhZs offer valuable insights for the clinical management of AMD.
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Affiliation(s)
- Qian Sun
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yueqi Ni
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kang Wang
- Hubei Province Tobacco Quality Supervision and Test Station, Wuhan, 430030, China
| | - Hong Zhang
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jia Liu
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lingjuan Xu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yin Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Hu J, Chen Y, Lin M, Duan K, Xu M, Li T, Zhao Y, Lee BH, Deng H. Arginine-loaded globular BSAMA/fibrous GelMA biohybrid cryogels with multifunctional features and enhanced healing for soft gingival tissue regeneration. Int J Biol Macromol 2024; 278:134932. [PMID: 39179087 DOI: 10.1016/j.ijbiomac.2024.134932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 08/26/2024]
Abstract
Mucogingival surgery has been widely used in soft gingival tissue augmentation in which autografts are predominantly employed. However, the autografts face grand challenges, such as scarcity of palatal donor tissue and postoperative discomfort. Therefore, development of alternative soft tissue substitutes has been an imperative need. Here, we engineered an interconnected porous bovine serum albumin methacryloyl (BSAMA: B, as a drug carrier and antioxidant)/gelatin methacryloyl (GelMA: G, as a biocompatible collagen-like component)-based cryogel with L-Arginine (Arg) loaded as an angiogenic molecule, which could serve as a promising gingival tissue biohybrid scaffold. BG@Arg cryogels featured macroporous architecture, biodegradation, sponge-like properties, suturability, and sustained Arg release. Moreover, BG@Arg cryogels promoted vessel formation and collagen deposition which play an important role in tissue regeneration. Most interestingly, BG@Arg cryogels were found to enhance antioxidant effects. Finally, the therapeutic effect of BG@Arg on promoting tissue regeneration was confirmed in rat full-thickness skin and oral gingival defect models. In vivo results revealed that BG@Arg2 could promote better angiogenesis, more collagen production, and better modulation of inflammation, as compared to a commercial collagen membrane. These advantages might render BG@Arg cryogels a promising alternative to commercial collagen membrane products and possibly autografts for soft gingival tissue regeneration.
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Affiliation(s)
- Jiajun Hu
- Department of Periodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Yuan Chen
- Department of Periodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Mian Lin
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
| | - Kairui Duan
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
| | - Mengdie Xu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
| | - Tingting Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China
| | - Yueming Zhao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Bae Hoon Lee
- Department of Periodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China.
| | - Hui Deng
- Department of Periodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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Xia J, Jia D, Wu J. Protective effects of alpinetin against interleukin-1β-exposed nucleus pulposus cells: Involvement of the TLR4/MyD88 pathway in a cellular model of intervertebral disc degeneration. Toxicol Appl Pharmacol 2024; 492:117110. [PMID: 39322069 DOI: 10.1016/j.taap.2024.117110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 09/15/2024] [Accepted: 09/20/2024] [Indexed: 09/27/2024]
Abstract
Intervertebral disc degeneration (IDD) causes a variety of symptoms such as low back pain, disc herniation, and spinal stenosis, which can lead to high social and economic costs. Alpinetin has an anti-inflammatory potential, but its effect on IDD is unclear. Herein, we investigated the effect of alpinetin on IDD. To mimic an in vitro model of IDD, nucleus pulposus cells (NPCs) were exposed to interleukin 1β (IL-1β). The viability of NPCs was assessed by CCK-8 assay. The expression of Toll-like receptor 4 (TLR4), myeloid differentiation primary response protein 88 (MyD88), aggrecan, collagen-2, and matrix metalloproteinase-3 (MMP-3) was examined by qRT-PCR and western blotting. The protein levels of B cell lymphoma-2 (Bcl-2), Bcl-2-associated protein X (Bax), and cleaved caspase-3 were scrutinized by western blotting. The flow cytometry assay was performed to assess apoptosis of NPCs. The contents of inflammatory factors were examined by ELISA kits. Results showed that alpinetin repressed IL-1β-tempted activation of the TLR4/MyD88 pathway and apoptosis in NPCs. Alpinetin alleviated IL-1β-tempted inflammatory responses and oxidative stress in NPCs. Moreover, alpinetin lessened IL-1β-tempted extracellular matrix (ECM) degeneration in NPCs by enhancing the expression of aggrecan and collagen-2 and reducing the expression of MMP-3. The effects of alpinetin on IL-1β-exposed NPCs were neutralized by TLR4 upregulation. In conclusion, alpinetin repressed IL-1β-tempted apoptosis, inflammatory responses, oxidative stress, and ECM degradation in NPCs through the inactivation of the TLR4/MyD88 pathway.
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Affiliation(s)
- Junfeng Xia
- Department of Orthopedics, Nanyang First People's Hospital, Nanyang, China
| | - Di Jia
- Medical Department, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan Traditional Chinese Medicine Hospital), Shenzhen, China
| | - Jianlong Wu
- Center for Plastic & Reconstructive Surgery, Department of Hand & Reconstructive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, China.
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Liu G, Gao L, Wang Y, Xie X, Gao X, Wu X. The JNK signaling pathway in intervertebral disc degeneration. Front Cell Dev Biol 2024; 12:1423665. [PMID: 39364138 PMCID: PMC11447294 DOI: 10.3389/fcell.2024.1423665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 09/09/2024] [Indexed: 10/05/2024] Open
Abstract
Intervertebral disc degeneration (IDD) serves as the underlying pathology for various spinal degenerative conditions and is a primary contributor to low back pain (LBP). Recent studies have revealed a strong correlation between IDD and biological processes such as Programmed Cell Death (PCD), cellular senescence, inflammation, cell proliferation, extracellular matrix (ECM) degradation, and oxidative stress (OS). Of particular interest is the emerging evidence highlighting the significant involvement of the JNK signaling pathway in these fundamental biological processes of IDD. This paper explores the potential mechanisms through the JNK signaling pathway influences IDD in diverse ways. The objective of this article is to offer a fresh perspective and methodology for in-depth investigation into the pathogenesis of IDD by thoroughly examining the interplay between the JNK signaling pathway and IDD. Moreover, this paper summarizes the drugs and natural compounds that alleviate the progression of IDD by regulating the JNK signaling pathway. This paper aims to identify potential therapeutic targets and strategies for IDD treatment, providing valuable insights for clinical application.
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Affiliation(s)
- Ganggang Liu
- Orthopaedics, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Lu Gao
- Orthopaedics, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yuncai Wang
- Orthopaedics, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xinsheng Xie
- Orthopaedics, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xuejiao Gao
- Otolaryngology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xingjie Wu
- Orthopaedics, The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
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Stover JD, Trone MAR, Weston J, Lewis C, Levis H, Farhang N, Philippi M, Zeidan M, Lawrence B, Bowles RD. Therapeutic CRISPR epigenome editing of inflammatory receptors in the intervertebral disc. Mol Ther 2024:S1525-0016(24)00610-5. [PMID: 39295148 DOI: 10.1016/j.ymthe.2024.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 08/07/2024] [Accepted: 09/13/2024] [Indexed: 09/21/2024] Open
Abstract
Low back pain (LBP) ranks among the leading causes of disability worldwide and generates a tremendous socioeconomic cost. Disc degeneration, a leading contributor to LBP, can be characterized by the breakdown of the extracellular matrix of the intervertebral disc (IVD), disc height loss, and inflammation. The inflammatory cytokine tumor necrosis factor α (TNF-α) has multiple signaling pathways, including proinflammatory signaling through tumor necrosis factor receptor 1 superfamily, member 1a (TNFR1 or TNFRSF1A), and has been implicated as a primary mediator of disc degeneration. We tested our ability to regulate the TNFR1 signaling pathway in vivo, utilizing CRISPR epigenome editing to slow the progression of disc degeneration in rats. Sprague-Dawley rats were treated with TNF-α and CRISPR interference (CRISPRi)-based epigenome-editing therapeutics targeting TNFR1, showing decreased behavioral pain in a disc degeneration model. Surprisingly, while treatment with the vectors alone was therapeutic, the TNF-α injection became therapeutic after TNFR1 modulation. These results suggest direct inflammatory receptor modulation as a potent strategy for treating disc degeneration.
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Affiliation(s)
- Joshua D Stover
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Matthew A R Trone
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Jacob Weston
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Christian Lewis
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Hunter Levis
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Niloofar Farhang
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Matthew Philippi
- Department of Orthopaedics, University of Utah, Salt Lake City, UT 84112, USA
| | - Michelle Zeidan
- Department of Orthopaedics, University of Utah, Salt Lake City, UT 84112, USA
| | - Brandon Lawrence
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA; Department of Orthopaedics, University of Utah, Salt Lake City, UT 84112, USA
| | - Robby D Bowles
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA; Department of Orthopaedics, University of Utah, Salt Lake City, UT 84112, USA.
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Tang P, Liu B. Overactivation of NF-kB pathway can induce apoptosis by down-regulating glycolysis in human degenerative nucleus pulposus cells. Heliyon 2024; 10:e36905. [PMID: 39281505 PMCID: PMC11395756 DOI: 10.1016/j.heliyon.2024.e36905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 08/23/2024] [Accepted: 08/23/2024] [Indexed: 09/18/2024] Open
Abstract
Intervertebral disc herniation, a prevalent condition in spinal surgery that frequently results in low back pain and lower limb dysfunction, significantly impacting patients' quality of life. Several factors, including spine biomechanics, biology, nutrition, injury, and abnormal inflammatory responses, have been associated with the development of intervertebral disc herniation. Among these factors, abnormal inflammatory responses have received considerable attention as a crucial mediator of both clinical symptoms and disease progression during the intervertebral disc herniation process. However, the underlying mechanisms of inflammation-induced intervertebral disc herniation remain inadequately explored. The NF-κB (Nuclear Factor-κB) pathway plays a central role in regulating the expression of proinflammatory cytokines. Research on intervertebral disc herniation has suggested that NF-κB can activate the NLRP3 inflammasome, thereby exacerbating intervertebral disc degeneration. Targeting the NF-κB pathway has shown promise in alleviating disc degeneration and associated pain. Previous research indicated that the upregulation of the NF-κB pathway, achieved through the inhibition of A20 (zinc finger protein A20), accelerated intervertebral disc herniation. In the present study, we observed that increased activation of NF-κB pathway activation suppressed the glycolysis process in nucleus pulposus cells (NPCs), leading to NPC apoptosis. Conversely, inhibition of the NF-κB pathway overactivated promoted the restoration of glycolysis and reversed NPC apoptosis, especially when treated with Lipopolysaccharide (LPS).
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Affiliation(s)
- Pan Tang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, China
- Chongqing Municipal Health Commission Key Laboratory of Musculoskeletal Regeneration and Translational Medicine, China
- Orthopaedic Research Laboratory of Chongqing Medical University, China
| | - Bo Liu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, China
- Chongqing Municipal Health Commission Key Laboratory of Musculoskeletal Regeneration and Translational Medicine, China
- Orthopaedic Research Laboratory of Chongqing Medical University, China
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Zhao Y, Xia Q, Zhu L, Xia J, Xiang S, Mao Q, Dong H, Weng Z, Liao W, Xin Z. Mapping knowledge structure and themes trends of non-surgical treatment in intervertebral disc degeneration. Heliyon 2024; 10:e36509. [PMID: 39286189 PMCID: PMC11402762 DOI: 10.1016/j.heliyon.2024.e36509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/23/2024] [Accepted: 08/16/2024] [Indexed: 09/19/2024] Open
Abstract
Background Intervertebral disc degeneration (IDD) is a chronic disabling disease caused by degeneration of nucleus pulposus cells, decreased activity and the number of nucleus pulposus cells, decreased extracellular matrix, and infiltration of inflammatory factors, resulting in low back and leg pain. Recent studies have shown that non-surgical treatment is of great significance in reversing the progression of degenerative disc disease, and there are more relevant literature reports. However, there is no bibliometric analysis in this area. This study aimed to describe the knowledge structure and thematic trends of non-surgical treatment methods for IDD through bibliometrics. Methods Articles and reviews on non-surgical treatment of disc degeneration from 1998 to 2022 were collected on the Web of Science. VOSviewer 1.6.18, CiteSpace 6.1.R3, R package "bibliometrix" and two online analysis platforms were used for bibliometric and visual literature analysis. Results 961 articles were screened for inclusion, including 821 articles and 140 reviews. The analysis of our study shows that publications in the non-surgical treatment of disc degeneration are increasing annually, with publications coming mainly from North America and Asia, with China and the United States dominating. Huazhong Univ Sci & Technol and Wang K are the most prolific institutions and authors, respectively, and Le Maitre CL is the most co-cited author. However, there is less collaboration between institutions in different countries. Spine is both the most published and the most cited journal. According to the co-citation and co-occurrence analysis results, "mesenchymal stem cells," "exosomes," "medication," and "tissue engineering" are the current research hotspots in this field. Conclusions This study employs bibliometric analysis to explore the knowledge structure and trends of non-surgical treatments for IDD from 2013 to 2022. Key research hotspots include mesenchymal stem cells, exosomes, medication, and tissue engineering. The number of publications, especially from China and the USA, has increased significantly, though international collaboration needs improvement. Influential contributors include Wang K and the journal Spine. These findings provide a comprehensive overview and highlight important future directions for the field.
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Affiliation(s)
- Yan Zhao
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Qiuqiu Xia
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Lu Zhu
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Jiyue Xia
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Shaojie Xiang
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Qiming Mao
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Huaize Dong
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Zijing Weng
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Wenbo Liao
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Zhijun Xin
- Department of Orthopedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
- Institut Curie, PSL Research University, CNRS UMR3244, Dynamics of Genetic Information, Sorbonne Université, 75005, Paris, France
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Yu XJ, Zhao YT, Abudouaini H, Zou P, Li TQ, Bai XF, Wang SX, Guan JB, Li MW, Wang XD, Wang YG, Hao DJ. A novel spherical GelMA-HAMA hydrogel encapsulating APET×2 polypeptide and CFIm25-targeting sgRNA for immune microenvironment modulation and nucleus pulposus regeneration in intervertebral discs. J Nanobiotechnology 2024; 22:556. [PMID: 39267105 PMCID: PMC11391743 DOI: 10.1186/s12951-024-02783-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Accepted: 08/16/2024] [Indexed: 09/14/2024] Open
Abstract
METHODS Single-cell transcriptomics and high-throughput transcriptomics were used to screen factors significantly correlated with intervertebral disc degeneration (IDD). Expression changes of CFIm25 were determined via RT-qPCR and Western blot. NP cells were isolated from mouse intervertebral discs and induced to degrade with TNF-α and IL-1β. CFIm25 was knocked out using CRISPR-Cas9, and CFIm25 knockout and overexpressing nucleus pulposus (NP) cell lines were generated through lentiviral transfection. Proteoglycan expression, protein expression, inflammatory factor expression, cell viability, proliferation, migration, gene expression, and protein expression were analyzed using various assays (alcian blue staining, immunofluorescence, ELISA, CCK-8, EDU labeling, transwell migration, scratch assay, RT-qPCR, Western blot). The GelMA-HAMA hydrogel loaded with APET×2 polypeptide and sgRNA was designed, and its effects on NP regeneration were assessed through in vitro and mouse model experiments. The progression of IDD in mice was evaluated using X-ray, H&E staining, and Safranin O-Fast Green staining. Immunohistochemistry was performed to determine protein expression in NP tissue. Proteomic analysis combined with in vitro and in vivo experiments was conducted to elucidate the mechanisms of hydrogel action. RESULTS CFIm25 was upregulated in IDD NP tissue and significantly correlated with disease progression. Inhibition of CFIm25 improved NP cell degeneration, enhanced cell proliferation, and migration. The hydrogel effectively knocked down CFIm25 expression, improved NP cell degeneration, promoted cell proliferation and migration, and mitigated IDD progression in a mouse model. The hydrogel inhibited inflammatory factor expression (IL-6, iNOS, IL-1β, TNF-α) by targeting the p38/NF-κB signaling pathway, increased collagen COLII and proteoglycan Aggrecan expression, and suppressed NP degeneration-related factors (COX-2, MMP-3). CONCLUSION The study highlighted the crucial role of CFIm25 in IDD and introduced a promising therapeutic strategy using a porous spherical GelMA-HAMA hydrogel loaded with APET×2 polypeptide and sgRNA. This innovative approach offers new possibilities for treating degenerated intervertebral discs.
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Grants
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
- 82302763, 82202764, 82202765 National Natural Science Foundation of China
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Affiliation(s)
- Xiao-Jun Yu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Yuan-Ting Zhao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Haimiti Abudouaini
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Peng Zou
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Tian-Qi Li
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Xiao-Fan Bai
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Shan-Xi Wang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Jian-Bin Guan
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Meng-Wei Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiao-Dong Wang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China
| | - Ying-Guang Wang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China.
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China.
| | - Ding-Jun Hao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an City, Shaanxi Province, 710054, China.
- Shaanxi Key Laboratory of Spine Bionic Treatment, No.555 Friendship East Road, South Gate, Beilin District, Xi'an, Shaanxi, China.
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10
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Ran R, Zhang SB, Shi YQ, Dong H, Song W, Dong YB, Zhou KS, Zhang HH. Spotlight on necroptosis: Role in pathogenesis and therapeutic potential of intervertebral disc degeneration. Int Immunopharmacol 2024; 138:112616. [PMID: 38959544 DOI: 10.1016/j.intimp.2024.112616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/19/2024] [Accepted: 06/30/2024] [Indexed: 07/05/2024]
Abstract
Intervertebral disc degeneration (IDD) is the leading cause of low back pain, which is one of the major factors leading to disability and severe economic burden. Necroptosis is an important form of programmed cell death (PCD), a highly regulated caspase-independent type of cell death that is regulated by receptor-interacting protein kinase 1 (RIPK1), RIPK3 and mixed lineage kinase domain-like protein (MLKL)-mediated, play a key role in the pathophysiology of various inflammatory, infectious and degenerative diseases. Recent studies have shown that necroptosis plays an important role in the occurrence and development of IDD. In this review, we provide an overview of the initiation and execution of necroptosis and explore in depth its potential mechanisms of action in IDD. The analysis focuses on the connection between NP cell necroptosis and mitochondrial dysfunction-oxidative stress pathway, inflammation, endoplasmic reticulum stress, apoptosis, and autophagy. Finally, we evaluated the possibility of treating IDD by inhibiting necroptosis, and believed that targeting necroptosis may be a new strategy to alleviate the symptoms of IDD.
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Affiliation(s)
- Rui Ran
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Shun-Bai Zhang
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Yong-Qiang Shi
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Hao Dong
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Wei Song
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Yan-Bo Dong
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Kai-Sheng Zhou
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China
| | - Hai-Hong Zhang
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou 730000, PR China; Orthopedics Key Laboratory of Gansu Province, Lanzhou 730000, PR China.
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11
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Ma Y, Zhang Y, Wang Y, Qiao Z, Liu Y, Xia X. PhoP/PhoQ Two-Component System Contributes to Intestinal Inflammation Induced by Cronobacter sakazakii in Neonatal Mice. Foods 2024; 13:2808. [PMID: 39272573 PMCID: PMC11394756 DOI: 10.3390/foods13172808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/30/2024] [Accepted: 09/02/2024] [Indexed: 09/15/2024] Open
Abstract
Cronobacter sakazakii (C. sakazakii) is a foodborne pathogen capable of causing severe infections in newborns. The PhoP/PhoQ two-component system exerts a significant influence on bacterial virulence. This study aimed to investigate the impact of the PhoP/PhoQ system on intestinal inflammation in neonatal mice induced by C. sakazakii. Neonatal mice were infected orally by C. sakazakii BAA-894 (WT), a phoPQ-gene-deletion strain (ΔphoPQ), and a complementation strain (ΔphoPQC), and the intestinal inflammation in the mice was monitored. Deletion of the phoPQ gene reduced the viable count of C. sakazakii in the ileum and alleviated intestinal tissue damage. Moreover, caspase-3 activity in the ileum of the WT- and ΔphoPQC-infected mice was significantly elevated compared to that of the ΔphoPQ and control groups. ELISA results showed elevated levels of TNF-α and IL-6 in the ileum of the mice infected with WT and ΔphoPQC. In addition, deletion of the phoPQ gene in C. sakazakii resulted in a down-regulation of inflammatory genes (IL-1β, TNF-α, IL-6, NF-κB p65, TLR4) within the ileum and decreased inflammation by modulating the TLR4/NF-κB pathway. It is suggested that targeting the PhoP/PhoQ two-component system could be a potential strategy for mitigating C. sakazakii-induced neonatal infections.
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Affiliation(s)
- Yan Ma
- School of Biological and Food Processing Engineering, Huanghuai University, Zhumadian 463000, China
| | - Yingying Zhang
- The College of Life Sciences, Northwest University, Xi'an 710068, China
| | - Yuting Wang
- School of Biological and Food Processing Engineering, Huanghuai University, Zhumadian 463000, China
| | - Zhu Qiao
- School of Biological and Food Processing Engineering, Huanghuai University, Zhumadian 463000, China
| | - Yingying Liu
- School of Biological and Food Processing Engineering, Huanghuai University, Zhumadian 463000, China
| | - Xiaodong Xia
- State Key Laboratory of Marine Food Processing and Safety Control, National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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12
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Liu L, Wang W, Huang L, Xian Y, Ma W, Zhao L, Li Y, Zheng Z, Liu H, Wu D. Injectable Inflammation-Responsive Hydrogels for Microenvironmental Regulation of Intervertebral Disc Degeneration. Adv Healthc Mater 2024; 13:e2400717. [PMID: 38649143 DOI: 10.1002/adhm.202400717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Chronic local inflammation and excessive cell apoptosis in nucleus pulposus (NP) tissue are the main causes of intervertebral disc degeneration (IDD). Stimuli-responsive hydrogels have great potential in the treatment of IDD by facilitating localized and controlled drug delivery. Herein, an injectable drug-loaded dual stimuli-responsive adhesive hydrogel for microenvironmental regulation of IDD, is developed. The gelatin methacryloyl is functionalized with phenylboronic acid groups to enhance drug loading capacity and enable dual stimuli-responsive behavior, while the incorporation of oxidized hyaluronic acid further improves the adhesive properties. The prepared hydrogel exhibits an enhanced drug loading capacity for diol-containing drugs, pH- and reactive oxygen species (ROS)-responsive behaviors, excellent radical scavenging efficiency, potent antibacterial activity, and favorable biocompatibility. Furthermore, the hydrogel shows a beneficial protective efficacy on NP cells within an in vitro oxidative stress microenvironment. The in vivo results demonstrate the hydrogel's excellent therapeutic effect on treating IDD by maintaining water retention, restoring disc height, and promoting NP regeneration, indicating that this hydrogel holds great potential as a promising therapeutic approach for regulating the microenvironment and alleviating the progression of IDD.
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Affiliation(s)
- Lei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wantao Wang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Lin Huang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yiwen Xian
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wenzheng Ma
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Lei Zhao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yixi Li
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Hongmei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Decheng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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13
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Rudnik‐Jansen I, van Kruining Kodele S, Creemers L, Joosten B. Biomolecular therapies for chronic discogenic low back pain: A narrative review. JOR Spine 2024; 7:e1345. [PMID: 39114580 PMCID: PMC11303450 DOI: 10.1002/jsp2.1345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/01/2024] [Accepted: 05/01/2024] [Indexed: 08/10/2024] Open
Abstract
Chronic low back pain caused by intervertebral disc (IVD) degeneration, also termed chronic discogenic low back pain (CD-LBP), is one of the most prevalent musculoskeletal diseases. Degenerative processes in the IVD, such as inflammation and extra-cellular matrix breakdown, result in neurotrophin release. Local elevated neurotrophin levels will stimulate sprouting and innervation of sensory neurons. Furthermore, sprouted sensory nerves that are directly connected to adjacent dorsal root ganglia have shown to increase microglia activation, contributing to the maintenance and chronification of pain. Current pain treatments have shown to be insufficient or inadequate for long-term usage. Furthermore, most therapeutic approaches aimed to target the underlying pathogenesis of disc degeneration focus on repair and regeneration and neglect chronic pain. How biomolecular therapies influence the degenerative IVD environment, pain signaling cascades, and innervation and excitability of the sensory neurons often remains unclear. This review addresses the relatively underexplored area of chronic pain treatment for CD-LBP and summarizes effects of therapies aimed for CD-LBP with special emphasis on chronic pain. Approaches based on blocking pro-inflammatory mediators or neurotrophin activity have been shown to hamper neuronal ingrowth into the disc. Furthermore, the tissue regenerative and neuro inhibitory properties of extracellular matrix components or transplanted mesenchymal stem cells are potentially interesting biomolecular approaches to not only block IVD degeneration but also impede pain sensitization. At present, most biomolecular therapies are based on acute IVD degeneration models and thus do not reflect the real clinical chronic pain situation in CD-LBP patients. Future studies should aim at investigating the effects of therapeutic interventions applied in chronic degenerated discs containing established sensory nerve ingrowth. The in-depth understanding of the ramifications from biomolecular therapies on pain (chronification) pathways and pain relief in CD-LBP could help narrow the gap between the pre-clinical bench and clinical bedside for novel CD-LBP therapeutics and optimize pain treatment.
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Affiliation(s)
- Imke Rudnik‐Jansen
- Department of Anesthesiology and Pain ManagementMaastricht University Medical Center (MUMC+)Maastrichtthe Netherlands
- Department of Translational Neuroscience, School of Mental Health and Neuroscience (MHeNs)University of MaastrichtMaastrichtthe Netherlands
| | - Sanda van Kruining Kodele
- Department of Translational Neuroscience, School of Mental Health and Neuroscience (MHeNs)University of MaastrichtMaastrichtthe Netherlands
| | - Laura Creemers
- Department of OrthopedicsUniversity Medical Center UtrechtUtrechtthe Netherlands
| | - Bert Joosten
- Department of Anesthesiology and Pain ManagementMaastricht University Medical Center (MUMC+)Maastrichtthe Netherlands
- Department of Translational Neuroscience, School of Mental Health and Neuroscience (MHeNs)University of MaastrichtMaastrichtthe Netherlands
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14
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Fu Z, Yang G, Yun SY, Jang JM, Ha HC, Shin IC, Back MJ, Piao Y, Kim DK. Hyaluronan and proteoglycan link protein 1 - a novel signaling molecule for rejuvenating aged skin. Matrix Biol 2024:S0945-053X(24)00111-2. [PMID: 39226945 DOI: 10.1016/j.matbio.2024.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 08/28/2024] [Accepted: 08/30/2024] [Indexed: 09/05/2024]
Abstract
The skin seems to rejuvenate upon exposure to factors within the circulation of young organisms. Intrinsic factors that modulate skin aging are poorly understood. We used heterochronic parabiosis and aptamer-based proteomics to identify serum-derived rejuvenating factors. We discovered a novel extracellular function of hyaluronan and proteoglycan link protein 1 (HAPLN1). Its serum levels decreased with age, disturbing the integrity of the skin extracellular matrix, which is predominantly composed of collagen I and hyaluronan; levels of various markers, which decrease in aged skin, were significantly restored in vivo and in vitro by the administration of recombinant human HAPLN1 (rhHAPLN1). rhHAPLN1 protected transforming growth factor beta receptor 2 on the cell surface from endocytic degradation via mechanisms such as regulation of viscoelasticity, CD44 clustering, and hyaluronan cross-linking. Moreover, rhHAPLN1 regulated the levels of nuclear factor erythroid 2-related factor 2, phosphorylated nuclear factor kappa B, and some cyclin-dependent kinase inhibitors such as p16 and p21. Therefore, rhHAPLN1 may act as a novel biomechanical signaling protein to rejuvenate aged skin.
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Affiliation(s)
- Zhicheng Fu
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea; HaplnScience Research Institute, HaplnScience, Inc., Seongnam 13494, Republic of Korea
| | - Goowon Yang
- HaplnScience Research Institute, HaplnScience, Inc., Seongnam 13494, Republic of Korea
| | - So Yoon Yun
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea; HaplnScience Research Institute, HaplnScience, Inc., Seongnam 13494, Republic of Korea
| | - Ji Min Jang
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hae Chan Ha
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - In Chul Shin
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Moon Jung Back
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yongwei Piao
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea; HaplnScience Research Institute, HaplnScience, Inc., Seongnam 13494, Republic of Korea
| | - Dae Kyong Kim
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea; HaplnScience Research Institute, HaplnScience, Inc., Seongnam 13494, Republic of Korea.
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15
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Zou M, Chen W, Li J, Qi X, Wang X, Liu F, Hu J, Zhang Q. Apoptosis Signal-Regulated Kinase-1 Promotes Nucleus Pulposus Cell Senescence and Apoptosis to Regulate Intervertebral Disc Degeneration. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:1737-1751. [PMID: 38879082 DOI: 10.1016/j.ajpath.2024.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 04/28/2024] [Accepted: 05/08/2024] [Indexed: 06/27/2024]
Abstract
This study investigated the role of apoptosis signal-regulated kinase-1 (ASK1) in intervertebral disc degeneration (IDD). The nucleus pulposus (NP) tissues of non-IDD and IDD patients were subjected to hematoxylin and eosin, Safranin O-fast green, and immunohistochemical staining. Quantitative real-time PCR was used to assess the ASK1 mRNA level within NP tissue samples and cells. The Cell Counting Kit-8 assay, senescence-associated β-galactosidase staining, and flow cytometry were conducted to assess the viability, senescence, and apoptosis of NP cells, respectively. Extracellular matrix-related factors were detected using Western blot analysis. Furthermore, the effect of ASK1 on the IDD rat model was evaluated. Finally, c-Jun N-terminal kinase (JNK) inhibitors were used to verify the effect of the JNK/p38 signaling on IDD. ASK1 mRNA and protein were up-regulated within NP tissue samples from the IDD group, IL-1β-stimulated NP cells, and IDD rats. ASK1 inhibition promoted cell viability and repressed the senescence and apoptosis of NP cells, promoted collagen II and aggrecan, inhibited matrix metalloproteinase 3/9 and a disintegrin and metalloproteinase with thrombospondin motifs 4/5 protein levels, and increased NP cells in rat intervertebral disc tissues. ASK1 overexpression exerted the opposite effects of ASK1 inhibition on NP cells. Additionally, JNK/p38 signaling suppression could reverse the ASK1 up-regulation-induced dysfunction. In conclusion, ASK1 facilitated the senescence and apoptosis of NP cells in promoting IDD progression via the JNK/p38 pathway.
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Affiliation(s)
- Mingxiang Zou
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wenkang Chen
- Department of Orthopedics, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Jing Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xin Qi
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaobin Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fubing Liu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiarui Hu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianshi Zhang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
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16
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Baroudi M, Daher M, Parks RD, Gregoryczyk JG, Balmaceno-Criss M, McDonald CL, Diebo BG, Daniels AH. Cutibacterium acnes in spine surgery: pathophysiology, diagnosis, and treatment. Spine J 2024; 24:1545-1552. [PMID: 38679079 DOI: 10.1016/j.spinee.2024.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
Cutibacterium acnes (C. acnes) previously named Propionibacterium acnes (P. acnes) has been increasingly recognized by spine surgeons as a cause of indolent postsurgical spinal infection. Patients infected with C. acnes may present with pseudarthrosis or nonspecific back pain. Currently, microbiological tissue cultures remain the gold standard in diagnosing C. acnes infection. Ongoing research into using genetic sequencing as a diagnostic method shows promising results and may be another future way of diagnosis. Optimized prophylaxis involves the use of targeted antibiotics, longer duration of antibiotic prophylaxis, antibacterial-coated spinal implants, and evidence-based sterile surgical techniques all of which decrease contamination. Antibiotics and implant replacement remain the mainstay of treatment, with longer durations of antibiotics proving to be more efficacious. Local guidelines must consider the surge of antimicrobial resistance worldwide when treating C. acnes.
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Affiliation(s)
- Makeen Baroudi
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Mohammad Daher
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Russell D Parks
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Jerzy George Gregoryczyk
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Mariah Balmaceno-Criss
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Christopher L McDonald
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Bassel G Diebo
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA
| | - Alan H Daniels
- Department of Orthopaedic Surgery, Warren Alpert Medical School of Brown University, 1 Kettle Point Ave, Providence, RI 02914, USA.
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17
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Xu T, Chen G, Li J, Zhang Y. Exploring causal correlations between inflammatory cytokines and intervertebral disc degeneration: A Mendelian randomization. JOR Spine 2024; 7:e1349. [PMID: 38993524 PMCID: PMC11237178 DOI: 10.1002/jsp2.1349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 07/13/2024] Open
Abstract
Background Inflammatory cytokines have been reported to be related to intervertebral disc degeneration (IVDD) in several previous studies. However, it remains unclear about the causal relationship between inflammatory cytokines and IVDD. This study employs Mendelian randomization (MR) to analyze the causal link between inflammatory cytokines and the risk of IVDD. Method We used genetic variants associated with inflammatory cytokines from a meta-analysis of genome-wide association study (GWAS) in 8293 Finns as instrumental variables and IVDD data were sourced from the FinnGen consortium. The main analytical approach utilized Inverse-Variance Weighting (IVW) with random effects to assess the causal relationship. Additionally, complementary methods such as MR-Egger, weighted median, simple mode, weighted mode, and MR pleiotropy residual sum and outlier were employed to enhance the robustness of the final results. Result We found interferon-gamma (IFN-γ, p = 2.14 × 10-6, OR = 0.870, 95% CI = 0.821-0.921), interleukin-1 beta (IL-1b, p = 0.012, OR = 0.951, 95% CI = 0.914-0.989), interleukin-4 (IL-4, p = 0.034, OR = 0.946, 95% CI = 0.899-0.996), interleukin-18 (IL-18, p = 0.028, OR = 0.964, 95% CI = 0.934-0.996), granulocyte colony-stimulating factor (GCSF, p = 0.010, OR = 0.919, 95% CI = 0.861-0.980), and Stromal cell-derived factor 1a (SDF1a, p = 0.014, OR = 1.072, 95% CI = 1.014-1.134) were causally associated with risk of IVDD. Conclusion Our MR analyses found a potential causal relationship between six inflammation cytokines (IFN-γ, IL-1b, IL-4, IL-18, SDF1a, and GCSF) and altered IVDD risk.
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Affiliation(s)
- Tao Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople's Republic of China
| | - Guangzi Chen
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople's Republic of China
| | - Jian Li
- Department of OrthopaedicsThird Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi HospitalTaiyuanPeople's Republic of China
| | - Yingchi Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople's Republic of China
- Department of Traumatology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanPeople's Republic of China
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18
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Wang H, Chen S, Liu Z, Meng Q, Sobreiro-Almeida R, Liu L, Haugen HJ, Li J, Mano JF, Hong Y, Crouzier T, Yan H, Li B. Preserving the Immune-Privileged Niche of the Nucleus Pulposus: Safeguarding Intervertebral Discs from Degeneration after Discectomy with Synthetic Mucin Hydrogel Injection. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404496. [PMID: 39207014 DOI: 10.1002/advs.202404496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 08/09/2024] [Indexed: 09/04/2024]
Abstract
Intervertebral disc (IVD) herniation is a prevalent spinal disorder, often necessitating surgical intervention such as microdiscectomy for symptomatic relief and nerve decompression. IVDs comprise a gel-like nucleus pulposus (NP) encased by an annulus fibrosus (AF), and their avascular nature renders them immune-privileged. Microdiscectomy exposes the residual NP to the immune system, precipitating an immune cell infiltration and attack that exacerbates IVD degeneration. While many efforts in the tissue engineering field are directed toward IVD regeneration, the inherently limited regenerative capacity due to the avascular and low-cellularity nature of the disc and the challenging mechanical environment of the spine often impedes success. This study, aiming to prevent IVD degeneration post-microdiscectomy, utilizes mucin-derived gels (Muc-gels) that form a gel at the surgical site, inspired by the natural mucin coating on living organisms to evade immune reorganization. It is shown that type I macrophages are present in severely degenerated human discs. Encapsulating IVDs within Muc-gels prevents fibrous encapsulation and macrophage infiltration in a mouse subcutaneous model. The injection of Muc-gels prevents IVD degeneration in a rat tail IVD degeneration model up to 24 weeks post-operation. Mechanistic investigations indicate that Muc-gels attenuate immune cell infiltration into NPs, offering durable protection against immune attack post-microdiscectomy.
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Affiliation(s)
- Huan Wang
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
| | - Song Chen
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
| | - Zhao Liu
- National University of Singapore Suzhou Research Institute, Suzhou, Jiangsu, 215000, China
| | - Qingchen Meng
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
| | - Rita Sobreiro-Almeida
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Ling Liu
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
| | - Håvard Jostein Haugen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109 Blindern, Oslo, 0376, Norway
| | - Jiaying Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
| | - João F Mano
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Youzhi Hong
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
| | - Thomas Crouzier
- Department of Health Technology, DTU, Ørsteds Plads, building 345C DK-2800 Kgs, Lyngby, Copenhagen, Denmark
| | - Hongji Yan
- Department of Medical Cell Biology, Uppsala University, Uppsala, 75123, Sweden
- AIMES - Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institute and KTH Royal Institute of Technology, Stockholm, 17177, Sweden
| | - Bin Li
- Medical 3D Printing Center, Orthopedic Institute, Department of Orthopedic Surgery, The First Affiliated Hospital, School of Basic Medical Sciences, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, 215000, China
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, 215000, China
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Xu T, Zhao H, Fang X, Wang S, Li J, Wu H, Hu W, Lu R. Mulberroside A mitigates intervertebral disc degeneration by inhibiting MAPK and modulating Ppar-γ/NF-κB pathways. J Inflamm (Lond) 2024; 21:32. [PMID: 39198816 PMCID: PMC11360712 DOI: 10.1186/s12950-024-00398-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 06/12/2024] [Indexed: 09/01/2024] Open
Abstract
BACKGROUND Intervertebral disc degeneration (IVDD) is a common spine disease with inflammation as its main pathogenesis. Mulberroside A (MA), isolated from herbal medicine, possesses anti-inflammatory characteristics in many diseases. Whereas, there is little exploration of the therapeutic potential of MA on IVDD. This study aimed at the therapeutic potential of MA on IVDD in vivo and in vitro and the mechanism involved. METHODS In vitro, western blotting, RT-qPCR, and immunofluorescence analysis were implemented to explore the bioactivity of MA on interleukin-1 beta (IL-1β)-induced inflammation nucleus pulposus cells (NPCs) isolated from Sprague-Dawley male rats. In vivo, X-ray and MRI were applied to measure the morphological changes, and histological staining and immunohistochemistry were employed to investigate the histological changes of intervertebral disc sections on puncture-induced IVDD rat models. RESULTS In vitro, MA up-regulated the expression level of anabolic-related proteins (Aggrecan and Collagen II) and decreased catabolic-related proteins (Mmp2, Mmp3, Mmp9, and Mmp13) in IL-1β-induced NPCs. Furthermore, MA inhibits the production of pro-inflammatory factors (Inos, Cox-2, and Il-6) stimulated by IL-1β. Mechanistically, MA inhibited the signal transduction of mitogen-activated protein kinase (MAPK) and nuclear factor kappa-B (NF-κB) pathways in IL-1β-induced NPCs. Moreover, MA might bind to Ppar-γ and then suppress the NF-kB pathway. In vivo experiment illustrated that MA mitigates the IVDD progression in puncture-induced IVDD model. X-ray and MRI images showed MA restore the disc height and T2-weighted signal intensity after puncturing. H&E and Safranin O/Fast Green also showed MA also alleviated morphological changes caused by acupuncture. In addition, MA reversed the expression level of Mmp13, Aggrecan, Collagen II, and Ppar-γ induced in IVDD models. CONCLUSIONS MA inhibited degenerative phenotypes in NPCs and alleviated IVDD progression via inhibiting the MAPK and NF-κB pathways; besides, MA suppressed the NF-κB pathway was attributed to activating Ppar-γ, those supported that MA or Ppar-γ might be a potential drug or target for IVDD.
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Affiliation(s)
- Tao Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hongqi Zhao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuan Fang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shanxi Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jian Li
- Department of Orthopaedics, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Hua Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Weihua Hu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Rui Lu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Department of Thoracic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
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20
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Han Y, Zheng D, Ji Y, Feng Y, Chen Z, Chen L, Li H, Jiang X, Shen H, Tao B, Zhuang H, Bu W. Active Magnesium Boride/Alginate Hydrogels Rejuvenate Senescent Cells. ACS NANO 2024; 18:23566-23578. [PMID: 39145584 DOI: 10.1021/acsnano.4c07833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
The clearance of senescent cells may be detrimental to low cell density diseases, such as intervertebral disc degeneration (IVDD), and rejuvenating these cells presents a formidable obstacle. In this study, we investigate a mild-alkalization strategy employing magnesium boride-alginate (MB-ALG) hydrogels to rejuvenate senescent cells associated with age-related diseases. MB-ALG hydrogels proficiently ensnare senescent cells owing to their surface roughness. The hydrolysis of MB-ALG hydrogels liberates hydroxide ions (OH-), effecting a transition from an acidic microenvironment (pH ∼ 6.2) to a mildly alkaline state (pH ∼ 8.0), thereby fostering senescent cell proliferation via activation of the PI3K/Akt/mTOR pathway. Additionally, H2 aids in ROS clearance, which reduces cellular oxidative stress. And, Mg2+ rejuvenates senescent cells by inhibiting Ca2+ influx and fine-tuning the sirt1-p53 signaling pathways. Both in vitro and in vivo experiments conducted on rat intervertebral discs corroborate the sustained antisenescence and rejuvenation properties of MB-ALG hydrogels, with effects persisting for up to 12 weeks postoperation. These discoveries elucidate the role of mild-alkalization in dictating cellular destiny and provide key insights for addressing age-related diseases.
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Affiliation(s)
- Yingchao Han
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P. R. China
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai 200433, P. R. China
| | - Dandan Zheng
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P. R. China
| | - Yucheng Ji
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P. R. China
| | - Yubo Feng
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P. R. China
| | - Zhanyi Chen
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P. R. China
| | - Lijie Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai 200433, P. R. China
| | - Huiyan Li
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai 200433, P. R. China
| | - Xingwu Jiang
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai 200433, P. R. China
| | - Hongxing Shen
- Department of Spine Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P. R. China
| | - Bangbao Tao
- Department of Neurosurgery, Xinhua Hospital School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P. R. China
| | - Hongjun Zhuang
- Research Center for Translational Medicine, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, P. R. China
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, P. R. China
| | - Wenbo Bu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Academy for Engineering and Technology, Fudan University, Shanghai 200433, P. R. China
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Liu W, Li Q, Fang W, Cai L, Wang Z, Kou B, Zhou C, Zhou Y, Yao Z, Wei M, Zhang S. A 2AR regulate inflammation through PKA/NF-κB signaling pathways in intervertebral disc degeneration. Eur J Med Res 2024; 29:433. [PMID: 39192377 DOI: 10.1186/s40001-024-02028-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 08/16/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Reduction of inflammatory damage and inhibition of nucleus pulposus (NP) apoptosis are considered to be the main effective therapy idea to reverse the intervertebral disc degeneration (IDD) and alleviate the chronic low back pain. The adenosine A2A receptor (A2AR), as a member of G protein-coupled receptor families, plays an important role in the anti-inflammation and relieving pain. So far, the impact of A2AR on IDD therapy is unclear. The aim of this study was to explore the role of Adenosine A2A receptor (A2AR) in the intervertebral disc degeneration (IDD) and clarify potential mechanism. MATERIALS AND METHODS IL-1β and acupuncture was used to establish IDD model rats. A2AR agonist CGS-21680 and A2AR antagonist SCH442416 were used to investigate the therapeutical effects for IDD. Histological examination, western blotting analysis and RT-PCR were employed to evaluate the the association between A2AR and cyclic adenosine monophosphate (cAMP)/protein kinase A (PKA) pathway. RESULTS A2AR activity of the intervertebral disc tissues was up-regulated in feedback way, and cAMP, PKA and CREB expression were also increased. But in general, IL-1β-induced IDD promoted the significant up-regulation the expression of inflammatory factors. The nucleus pulposus (NP) inflammation was exacerbated in result of MMP3 and Col-II decline through activating NF-κB signaling pathway. A2AR agonist CGS-21680 exhibited a disc protective effect through significantly increasing A2AR activity, then further activated cAMP/PKA signaling pathway with attenuating the release of TNF-α and IL-6 via down-regulating NF-κB. In contrast, SCH442416 inhibited A2AR activation, consistent with lower expression levels of cAMP and PKA, further leading to the acceleration of IDD. CONCLUSIONS The activation of A2AR can prevent inflammatory responses and mitigates degradation of IDD thus suggest a potential novel therapeutic strategy of IDD.
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Affiliation(s)
- Weijun Liu
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China.
| | - Qingbo Li
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Weizhi Fang
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Lei Cai
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Zhengkun Wang
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Bowen Kou
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Chuankun Zhou
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Yichi Zhou
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Zhi Yao
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Mengcheng Wei
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
| | - Shishuang Zhang
- Department of Spine Surgery, Wuhan Fourth Hospital, Hanzheng Street, 473#, QiaoKou District, Wuhan, 430033, China
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22
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Tong Y, Yuan J, Li Z, Deng C, Cheng Y. Drug-Loaded Bioscaffolds for Osteochondral Regeneration. Pharmaceutics 2024; 16:1095. [PMID: 39204440 PMCID: PMC11360256 DOI: 10.3390/pharmaceutics16081095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 07/20/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
Osteochondral defect is a complex tissue loss disease caused by arthritis, high-energy trauma, and many other reasons. Due to the unique structural characteristics of osteochondral tissue, the repair process is sophisticated and involves the regeneration of both hyaline cartilage and subchondral bone. However, the current clinical treatments often fall short of achieving the desired outcomes. Tissue engineering bioscaffolds, especially those created via three-dimensional (3D) printing, offer promising solutions for osteochondral defects due to their precisely controllable 3D structures. The microstructure of 3D-printed bioscaffolds provides an excellent physical environment for cell adhesion and proliferation, as well as nutrient transport. Traditional 3D-printed bioscaffolds offer mere physical stimulation, while drug-loaded 3D bioscaffolds accelerate the tissue repair process by synergistically combining drug therapy with physical stimulation. In this review, the physiological characteristics of osteochondral tissue and current treatments of osteochondral defect were reviewed. Subsequently, the latest progress in drug-loaded bioscaffolds was discussed and highlighted in terms of classification, characteristics, and applications. The perspectives of scaffold design, drug control release, and biosafety were also discussed. We hope this article will serve as a valuable reference for the design and development of osteochondral regenerative bioscaffolds and pave the way for the use of drug-loaded bioscaffolds in clinical therapy.
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Affiliation(s)
| | | | | | - Cuijun Deng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China; (Y.T.); (J.Y.); (Z.L.)
| | - Yu Cheng
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-like Intelligence, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai 200434, China; (Y.T.); (J.Y.); (Z.L.)
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23
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Yang X, Sun A, Kong L, Yang X, Zhao X, Wang S. Inhibition of NLRP3 inflammasome alleviates cognitive deficits in a mouse model of anti-NMDAR encephalitis induced by active immunization. Int Immunopharmacol 2024; 137:112374. [PMID: 38851162 DOI: 10.1016/j.intimp.2024.112374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/21/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024]
Abstract
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a neurological disorder, characterized by cognitive deficits as one of its vital features. The nucleotide-binding oligomerization domain-like receptor (NLRP3) inflammasome is a key contributor to neuroinflammation and cognitive deficits in neurological diseases. However, the underlying mechanism of anti-NMDAR encephalitis remains unclear, and the biological function of the NLRP3 inflammasome in this condition has not been elucidated. In this study, a mouse model of anti-NMDAR encephalitis was induced by active immunization with the GluN1356-385 peptide (NEA model). The NLRP3 inflammasome in the hippocampus and temporal cortex was investigated using real-time quantitative PCR (RT-qPCR), western blotting, and immunofluorescence staining. The impact of MCC950 on cognitive function and NLRP3 inflammation was assessed. Confocal immunofluorescence staining and Sholl analysis were employed to examine the function and morphology of microglia. In the current study, we discovered overactivation of the NLRP3 inflammasome and an enhanced inflammatory response in the NEA model, particularly in the hippocampus and temporal cortex. Furthermore, significant cognitive dysfunction was observed in the NEA model. While, MCC950, a selective inhibitor of the NLRP3 inflammasome, sharply attenuated the inflammatory response in mice, leading to mitigated cognitive deficits of mice and more regular arrangements of neurons and reduced number of hyperchromatic cells were also observed in the hippocampus area. In addition, we found that the excess elevation of NLRP3 inflammasome was mainly expressed in microglia accompanied with the overactivation of microglia, while MCC950 treatment significantly inhibited the increased number and activated morphological changes of microglia in the NEA model. Altogether, our study reveals the vital role of overactivated NLRP3 signaling pathway in aggravating the inflammatory response and cognitive deficits and the potential protective effect of MCC950 in anti-NMDAR encephalitis. Thus, MCC950 represents a promising strategy for anti-inflammation in anti-NMDAR encephalitis and our study lays a theoretical foundation for it to become a clinically targeted drug.
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Affiliation(s)
- Xiaxin Yang
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, China
| | - Anqi Sun
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, China
| | - Liangbo Kong
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, China
| | - Xue Yang
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, China
| | - Xiuhe Zhao
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, China.
| | - Shengjun Wang
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, China.
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24
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Li K, Yang W, Chen X, Yu Y, Liu Y, Ni F, Xiao Y, Qing X, Liu S, He Y, Wang B, Xu L, Shao Z, Zhao L, Peng Y, Lin H. A structured biomimetic nanoparticle as inflammatory factor sponge and autophagy-regulatory agent against intervertebral disc degeneration and discogenic pain. J Nanobiotechnology 2024; 22:486. [PMID: 39143545 PMCID: PMC11323362 DOI: 10.1186/s12951-024-02715-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 07/09/2024] [Indexed: 08/16/2024] Open
Abstract
Lower back pain (LBP) is a common condition closely associated with intervertebral disc degeneration (IDD), causing a significant socioeconomic burden. Inflammatory activation in degenerated discs involves pro-inflammatory cytokines, dysregulated regulatory cytokines, and increased levels of nerve growth factor (NGF), leading to further intervertebral disc destruction and pain sensitization. Macrophage polarization is closely related to autophagy. Based on these pathological features, a structured biomimetic nanoparticle coated with TrkA-overexpressing macrophage membranes (TMNP@SR) with a rapamycin-loaded mesoporous silica core is developed. TMNP@SR acted like sponges to adsorbe inflammatory cytokines and NGF and delivers the autophagy regulator rapamycin (RAPA) into macrophages through homologous targeting effects of the outer engineered cell membrane. By regulating autophagy activation, TMNP@SR promoted the M1-to-M2 switch of macrophages to avoid continuous activation of inflammation within the degenerated disc, which prevented the apoptosis of nucleus pulposus cells. In addition, TMNP@SR relieved mechanical and thermal hyperalgesia, reduced calcitonin gene-related peptide (CGRP) and substance P (SP) expression in the dorsal root ganglion, and downregulated GFAP and c-FOS signaling in the spinal cord in the rat IDD model. In summary, TMNP@SR spontaneously inhibits the aggravation of disc inflammation to alleviate disc degeneration and reduce the ingress of sensory nerves, presenting a promising treatment strategy for LBP induced by disc degeneration.
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Affiliation(s)
- Kanglu Li
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wenbo Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xuanzuo Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yihan Yu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yiran Liu
- Tongji Medical College, HuaZhong University of Science and Technology, Wuhan, 430030, China
| | - Feifei Ni
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yan Xiao
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiangcheng Qing
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Sheng Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - YuXin He
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Baichuan Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Li Xu
- Department of Emergency, Union Hospital, Tongji Medical College, HuaZhong University of Science and Technology, Wuhan, 430022, China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lei Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Yizhong Peng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Hui Lin
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Numan AT, Jawad NK, Fawzi HA. Biochemical study of the effect of lead exposure in nonobese gasoline station workers and risk of hyperglycemia: A retrospective case-control study. Medicine (Baltimore) 2024; 103:e39152. [PMID: 39121307 PMCID: PMC11315521 DOI: 10.1097/md.0000000000039152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 07/10/2024] [Indexed: 08/11/2024] Open
Abstract
Evaluate the relationship between blood lead (Pb) levels and other biomedical markers and the risk of diabetes in gasoline station workers. The participants were separated into 2 groups: group A consisted of 26 workers from gasoline filling stations, while group B comprised 26 healthy individuals. Serum levels of malondialdehyde, IL-1β, visfatin, insulin, fasting blood sugar, and vitamin D were assessed. Mean Pb level was significantly higher in group A compared to group B (almost 2.9 times higher levels) (14.43 ± 1.01 vs 5.01 ± 1.41, µg/dL). The levels of visfatin (23.19 ± 0.96 vs 3.88 ± 0.58, ng/mL), insulin (22.14 ± 1.31 vs 11.26 ± 0.75, mU/L), fasting blood sugar (118.4 ± 26.1 vs 82.7 ± 9.2, gm/dL), malondialdehyde (6.40 ± 0.27 vs 1.62 ± 0.21, nmol/mL), and IL-1β (330.25 ± 10.34 vs 12.35 ± 1.43, pg/mL) were significantly higher in group A, meanwhile; vitamin D (11.99 ± 1.55 vs 35.41 ± 3.16, ng/mL) were significantly lower in group A. A positive association exists between blood Pb levels and increased inflammatory markers. Lead exposure increases serum insulin and fasting blood sugar, which suggests that it is diabetogenic and that increased inflammation is a possible cause.
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Affiliation(s)
- Ahmad Tarik Numan
- Department of Pharmacy, Al-Mustafa University College, Baghdad, Iraq
| | - Nada Kadum Jawad
- Department of Pharmacy, Al-Mustafa University College, Baghdad, Iraq
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Shafqat A, Masters MC, Tripathi U, Tchkonia T, Kirkland JL, Hashmi SK. Long COVID as a disease of accelerated biological aging: An opportunity to translate geroscience interventions. Ageing Res Rev 2024; 99:102400. [PMID: 38945306 DOI: 10.1016/j.arr.2024.102400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/12/2024] [Accepted: 06/27/2024] [Indexed: 07/02/2024]
Abstract
It has been four years since long COVID-the protracted consequences that survivors of COVID-19 face-was first described. Yet, this entity continues to devastate the quality of life of an increasing number of COVID-19 survivors without any approved therapy and a paucity of clinical trials addressing its biological root causes. Notably, many of the symptoms of long COVID are typically seen with advancing age. Leveraging this similarity, we posit that Geroscience-which aims to target the biological drivers of aging to prevent age-associated conditions as a group-could offer promising therapeutic avenues for long COVID. Bearing this in mind, this review presents a translational framework for studying long COVID as a state of effectively accelerated biological aging, identifying research gaps and offering recommendations for future preclinical and clinical studies.
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Affiliation(s)
- Areez Shafqat
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.
| | - Mary Clare Masters
- Division of Infectious Diseases, Northwestern University, Chicago, IL, USA
| | - Utkarsh Tripathi
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA
| | - Tamara Tchkonia
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN, USA; Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Shahrukh K Hashmi
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA; Research and Innovation Center, Department of Health, Abu Dhabi, UAE; College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, United Arab Emirates
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Zhang C, Yin Z, Hu F, Lin X, Guan Q, Zhang F, Zhang X. Omega-3 Polyunsaturated Fatty Acids Alleviate Intestinal Barrier Dysfunction in Obstructive Jaundice Rats. Mol Biotechnol 2024; 66:1954-1960. [PMID: 37507597 DOI: 10.1007/s12033-023-00829-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
Obstructive jaundice (OJ) can cause multiple pathophysiological consequences including intestinal barrier dysfunction. Omega-3 has been indicated to have a promising therapeutic effect on OJ. This study aimed to further investigate the functions of omega-3 on OJ-induced intestinal injury. A rat OJ model was established by bile duct ligation with or without omega-3 administration. ELISA was utilized for measuring serum levels of inflammatory cytokines. Hematoxylin-eosin staining and TUNEL staining were employed for detecting the morphological changes and cell apoptosis in rat intestine. Western blotting was utilized for evaluating expression of tight junction proteins in the intestinal tissues. Omgea-3 offset the reduction in body weight of OJ rats. Omega-3 alleviated inflammatory response, pathological damages and cell apoptosis in the intestine of OJ rats. Additionally, omega-3 enhanced levels of tight junction proteins in the intestinal tissues of OJ rats. Omega-3 ameliorates OJ-triggered impairment of intestinal barrier function in rats.
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Affiliation(s)
- Changxi Zhang
- Department of General Surgery, Binzhou Medical University Hospital, No.661, Huanghe 2nd Road, Binzhou, 256603, Shandong, China
| | - Zhicheng Yin
- Department of General Surgery, Binzhou Medical University Hospital, No.661, Huanghe 2nd Road, Binzhou, 256603, Shandong, China
| | - Feng'ai Hu
- Clinical Medicine Laboratory, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
| | - Xutao Lin
- Department of General Surgery, Binzhou Medical University Hospital, No.661, Huanghe 2nd Road, Binzhou, 256603, Shandong, China
| | - Qinghai Guan
- Department of General Surgery, Binzhou Medical University Hospital, No.661, Huanghe 2nd Road, Binzhou, 256603, Shandong, China
| | - Fan Zhang
- Department of General Surgery, Binzhou Medical University Hospital, No.661, Huanghe 2nd Road, Binzhou, 256603, Shandong, China
| | - Xingyuan Zhang
- Department of General Surgery, Binzhou Medical University Hospital, No.661, Huanghe 2nd Road, Binzhou, 256603, Shandong, China.
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Walk R, Broz K, Jing L, Potter R, Gonzalez CE, Beeve A, Scheller E, Gupta M, Setton L, Tang SY. The progression of neurovascular features and chemokine signatures of the intervertebral disc with degeneration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.12.603182. [PMID: 39071400 PMCID: PMC11275839 DOI: 10.1101/2024.07.12.603182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Inflammatory cytokine production and de novo neurovascularization have been identified in painful, degenerated intervertebral discs (IVDs). However, the temporal trajectories of these key pathoanatomical features, including the cascade of inflammatory chemokines and neo- vessel and neurite infiltration, and their associations with IVD degeneration, remain relatively unknown. Investigating this process in the caudal mouse IVD enables the opportunity to study the tissue-specific response without confounding inflammatory signaling from neighboring structures. Thus this study aims to define the progression of chemokine production and neurovascular invasion during the IVD degeneration initiated by injury in the caudal spine 3-month-old C57BL6/J mice. Forty-nine IVD-secreted chemokines and matrix metalloproteinases (MMPs) was measured using multiplex ELISA, and the intradiscal infiltrating vessels (endomucin) and nerves (protein-gene-product 9.5) was quantified in the tissue volume using immunohistochemistry. Injury provoked the increase secretion of IL6, CCL2, CCL12, CCL17, CCL20, CCL21, CCL22, CXCL2 and MMP2 proteins. The centrality and structure of inflammatory networks in IVDs evolved over the 12 post-injury weeks, highlighting distinct responses between the acute and chronic phases. Neurites propagated rapidly within 2-weeks post-injury and remained relatively constant until 12-weeks. Vascular vessel length was observed to peak at 4-weeks post-injury and it regressed by 12-weeks. These findings identified the temporal flux of inflammatory chemokines and pain-associated pathoanatomy in a model of IVD degeneration using the mouse caudal spine.
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Yang M, Wei X, Yi X, Jiang DS. Mitophagy-related regulated cell death: molecular mechanisms and disease implications. Cell Death Dis 2024; 15:505. [PMID: 39013891 PMCID: PMC11252137 DOI: 10.1038/s41419-024-06804-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 07/18/2024]
Abstract
During oxidative phosphorylation, mitochondria continuously produce reactive oxygen species (ROS), and untimely ROS clearance can subject mitochondria to oxidative stress, ultimately resulting in mitochondrial damage. Mitophagy is essential for maintaining cellular mitochondrial quality control and homeostasis, with activation involving both ubiquitin-dependent and ubiquitin-independent pathways. Over the past decade, numerous studies have indicated that different forms of regulated cell death (RCD) are connected with mitophagy. These diverse forms of RCD have been shown to be regulated by mitophagy and are implicated in the pathogenesis of a variety of diseases, such as tumors, degenerative diseases, and ischemia‒reperfusion injury (IRI). Importantly, targeting mitophagy to regulate RCD has shown excellent therapeutic potential in preclinical trials, and is expected to be an effective strategy for the treatment of related diseases. Here, we present a summary of the role of mitophagy in different forms of RCD, with a focus on potential molecular mechanisms by which mitophagy regulates RCD. We also discuss the implications of mitophagy-related RCD in the context of various diseases.
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Affiliation(s)
- Molin Yang
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiang Wei
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
| | - Xin Yi
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
| | - Ding-Sheng Jiang
- Division of Cardiovascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China.
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Wang Q, Huang Q, Ying X, Zhou Y, Duan S. Exploring the regulatory role of tsRNAs in the TNF signaling pathway: Implications for cancer and non-cancer diseases. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2024; 191:1-10. [PMID: 38971324 DOI: 10.1016/j.pbiomolbio.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/31/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Transfer RNA-derived small RNAs (tsRNAs), a recently identified subclass of small non-coding RNAs (sncRNAs), emerge through the cleavage of mature transfer RNA (tRNA) or tRNA precursors mediated by specific enzymes. The tumor necrosis factor (TNF) protein, a signaling molecule produced by activated macrophages, plays a pivotal role in systemic inflammation. Its multifaceted functions include the capacity to eliminate or hinder tumor cells, enhance the phagocytic capabilities of neutrophils, confer resistance against infections, induce fever, and prompt the production of acute phase proteins. Notably, four TNF-related tsRNAs have been conclusively linked to distinct diseases. Examples include 5'tiRNA-Gly in skeletal muscle injury, tsRNA-21109 in systemic lupus erythematosus (SLE), tRF-Leu-AAG-001 in endometriosis (EMs), and tsRNA-04002 in intervertebral disk degeneration (IDD). These tsRNAs exhibit the ability to suppress the expression of TNF-α. Additionally, KEGG analysis has identified seven tsRNAs potentially involved in modulating the TNF pathway, exerting their influence across a spectrum of non-cancerous diseases. Noteworthy instances include aberrant tiRNA-Ser-TGA-001 and tRF-Val-AAC-034 in intrauterine growth restriction (IUGR), irregular tRF-Ala-AGC-052 and tRF-Ala-TGC-027 in obesity, and deviant tiRNA-His-GTG-001, tRF-Ser-GCT-113, and tRF-Gln-TTG-035 in irritable bowel syndrome with diarrhea (IBS-D). This comprehensive review explores the biological functions and mechanisms of tsRNAs associated with the TNF signaling pathway in both cancer and other diseases, offering novel insights for future translational medical research.
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Affiliation(s)
- Qurui Wang
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China.
| | - Qinyuan Huang
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China.
| | - Xiaowei Ying
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China.
| | - Yang Zhou
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China.
| | - Shiwei Duan
- Key Laboratory of Novel Targets and Drug Study for Neural Repair of Zhejiang Province, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China; Department of Clinical Medicine, School of Medicine, Hangzhou City University, Hangzhou, Zhejiang, China.
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31
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He W, Li ZQ, Gu HY, Pan QL, Lin FX. Targeted Therapy of Spinal Cord Injury: Inhibition of Apoptosis Is a Promising Therapeutic Strategy. Mol Neurobiol 2024; 61:4222-4239. [PMID: 38066400 DOI: 10.1007/s12035-023-03814-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/16/2023] [Indexed: 07/11/2024]
Abstract
Spinal cord injury (SCI) is a serious disabling central nervous system injury that can lead to motor, sensory, and autonomic dysfunction below the injury level. SCI can be divided into primary injury and secondary injury according to pathological process. Primary injury is mostly irreversible, while secondary injury is a dynamic regulatory process. Apoptosis is an important pathological event of secondary injury and has a significant effect on the recovery of nerve function after SCI. Nerve cell death can further aggravate the microenvironment of the injured site, leading to neurological dysfunction and thus affect the clinical outcome of patients. Therefore, apoptosis plays a crucial role in the pathological progression of secondary SCI, while inhibiting apoptosis may be a promising therapeutic strategy for SCI. This review will summarize and explore the factors that lead to cell death after SCI, the influence of cross talk between signaling pathways and pathways involved in apoptosis and discuss the influence of apoptosis on SCI, and the therapeutic significance of targeting apoptosis on SCI. This review helps us to understand the role of apoptosis in secondary SCI and provides a theoretical basis for the treatment of SCI based on apoptosis.
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Affiliation(s)
- Wei He
- Department of Spine Surgery, Ganzhou People's Hospital, Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
- Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
| | - Zhi-Qiang Li
- Department of Spine Surgery, Ganzhou People's Hospital, Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
- Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
| | - Hou-Yun Gu
- Department of Spine Surgery, Ganzhou People's Hospital, Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
- Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
| | - Qi-Lin Pan
- Department of Spine Surgery, Ganzhou People's Hospital, Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
- Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China
| | - Fei-Xiang Lin
- Department of Spine Surgery, Ganzhou People's Hospital, Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China.
- Department of Spine Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou Hospital-Nanfang Hospital, Southern Medical University), Jiangxi Province, 16 Meiguan Avenue, Ganzhou, 341000, People's Republic of China.
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32
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Zhou H, He J, Liu R, Cheng J, Yuan Y, Mao W, Zhou J, He H, Liu Q, Tan W, Shuai C, Deng Y. Microenvironment-responsive metal-phenolic network release platform with ROS scavenging, anti-pyroptosis, and ECM regeneration for intervertebral disc degeneration. Bioact Mater 2024; 37:51-71. [PMID: 38515609 PMCID: PMC10954684 DOI: 10.1016/j.bioactmat.2024.02.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/13/2024] [Accepted: 02/29/2024] [Indexed: 03/23/2024] Open
Abstract
Intervertebral disc degeneration (IVDD) can be caused by aging, injury, and genetic factors. The pathological changes associated with IVDD include the excessive accumulation of reactive oxygen species (ROS), cellular pyroptosis, and extracellular matrix (ECM) degradation. There are currently no approved specific molecular therapies for IVDD. In this study, we developed a multifunctional and microenvironment-responsive metal-phenolic network release platform, termed TMP@Alg-PBA/PVA, which could treat (IL-1β)-induced IVDD. The metal-phenolic network (TA-Mn-PVP, TMP) released from this platform targeted mitochondria to efficiently scavenge ROS and reduce ECM degradation. Pyroptosis was suppressed through the inhibition of the IL-17/ERK signaling pathway. These findings demonstrate the versatility of the platform. And in a rat model of IVDD, TMP@Alg-PBA/PVA exhibited excellent therapeutic effects by reducing the progression of the disease. TMP@Alg-PBA/PVA, therefore, presents clinical potential for the treatment of IVDD.
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Affiliation(s)
- Hao Zhou
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
- Department of Joint Surgery and Sports Medicine, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421002, China
| | - Jinpeng He
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - Renfeng Liu
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - Jun Cheng
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - Yuhao Yuan
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Wanpu Mao
- Department of Joint Surgery and Sports Medicine, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421002, China
| | - Jun Zhou
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Honghui He
- Department of Joint Surgery and Sports Medicine, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, 421002, China
| | - Qianqi Liu
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - Wei Tan
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China
| | - Youwen Deng
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
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Jiang J, Huang Y, He B. Advances in the interaction between lumbar intervertebral disc degeneration and fat infiltration of paraspinal muscles: critical summarization, classification, and perspectives. Front Endocrinol (Lausanne) 2024; 15:1353087. [PMID: 38978618 PMCID: PMC11228240 DOI: 10.3389/fendo.2024.1353087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 06/10/2024] [Indexed: 07/10/2024] Open
Abstract
More than 619 million people in the world suffer from low back pain (LBP). As two potential inducers of LBP, intervertebral disc degeneration (IVDD) and fat infiltration of paraspinal muscles (PSMs) have attracted extensive attention in recent years. So far, only one review has been presented to summarize their relationship and relevant mechanisms. Nevertheless, it has several noticeable drawbacks, such as incomplete categorization and discussion, lack of practical proposals, etc. Consequently, this paper aims to systematically summarize and classify the interaction between IVDD and fat infiltration of PSMs, thus providing a one-stop search handbook for future studies. As a result, four mechanisms of IVDD leading to fat infiltration of PSMs and three mechanisms of fat infiltration in PSMs causing IVDD are thoroughly analyzed and summarized. The typical reseaches are tabulated and evaluated from four aspects, i.e., methods, conclusions, benefits, and drawbacks. We find that IVDD and fat infiltration of PSMs is a vicious cycle that can promote the occurrence and development of each other, ultimately leading to LBP and disability. Finally, eight perspectives are proposed for future in-depth research.
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Affiliation(s)
- Jiaqiu Jiang
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yilong Huang
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Bo He
- Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, China
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Tu H, Gao Q, Zhou Y, Peng L, Wu D, Zhang D, Yang J. The role of sirtuins in intervertebral disc degeneration: Mechanisms and therapeutic potential. J Cell Physiol 2024. [PMID: 38922861 DOI: 10.1002/jcp.31328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 04/27/2024] [Accepted: 05/13/2024] [Indexed: 06/28/2024]
Abstract
Intervertebral disc degeneration (IDD) is one of the main causes of low back pain, which affects the patients' quality of life and health and imposes a significant socioeconomic burden. Despite great efforts made by researchers to understand the pathogenesis of IDD, effective strategies for preventing and treating this disease remain very limited. Sirtuins are a highly conserved family of (NAD+)-dependent deacetylases in mammals that are involved in a variety of metabolic processes in vivo. In recent years, sirtuins have attracted much attention owing to their regulatory roles in IDD on physiological activities such as inflammation, apoptosis, autophagy, aging, oxidative stress, and mitochondrial function. At the same time, many studies have explored the therapeutic effects of sirtuins-targeting activators or micro-RNA in IDD. This review summarizes the molecular pathways of sirtuins involved in IDD, and summarizes the therapeutic role of activators or micro-RNA targeting Sirtuins in IDD, as well as the current limitations and challenges, with a view to provide possible solutions for the treatment of IDD.
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Affiliation(s)
- Heng Tu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Qian Gao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yumeng Zhou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Li Peng
- Key Laboratory of Bio-Resource & Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, China
| | - Dan Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Demao Zhang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Jing Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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35
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Gansau J, Grossi E, Rodriguez L, Wang M, Laudier DM, Chaudhary S, Hecht AC, Fu W, Sebra R, Liu C, Iatridis JC. TNFR1-mediated senescence and lack of TNFR2-signaling limit human intervertebral disc cell repair in back pain conditions. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.22.581620. [PMID: 38948728 PMCID: PMC11212922 DOI: 10.1101/2024.02.22.581620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Poor intervertebral disc (IVD) healing causes IVD degeneration (IVDD) and progression to herniation and back pain. This study identified distinct roles of TNFα-receptors (TNFRs) in contributing to poor healing in painful IVDD. We first isolated IVDD tissue of back pain subjects and determined the complex pro-inflammatory mixture contained many chemokines for recruiting inflammatory cells. Single-cell RNA-sequencing of human IVDD tissues revealed these pro-inflammatory cytokines were dominantly expressed by a small macrophage-population. Human annulus fibrosus (hAF) cells treated with IVDD-conditioned media (CM) underwent senescence with greatly reduced metabolic rates and limited inflammatory responses. TNFR1 inhibition partially restored hAF cell metabolism sufficiently to enable a robust chemokine and cytokine response to CM. We showed that the pro-reparative TNFR2 was very limited on hIVD cell membranes so that TNFR2 inhibition with blocking antibodies or activation using Atsttrin had no effect on hAF cells with CM challenge. However, TNFR2 was expressed in high levels on macrophages identified in scRNA-seq analyses, suggesting their role in repair responses. Results therefore point to therapeutic strategies for painful IVDD involving immunomodulation of TNFR1 signaling in IVD cells to enhance metabolism and enable a more robust inflammatory response including recruitment or delivery of TNFR2 expressing immune cells to enhance IVD repair.
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Affiliation(s)
- Jennifer Gansau
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Elena Grossi
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Levon Rodriguez
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
- Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Minghui Wang
- Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Damien M. Laudier
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Saad Chaudhary
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Andrew C. Hecht
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Wenyu Fu
- Department of Orthopaedics & Rehabilitation, Yale University School of Medicine; New Haven, CT 06510, USA
| | - Robert Sebra
- Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
| | - Chuanju Liu
- Department of Orthopaedics & Rehabilitation, Yale University School of Medicine; New Haven, CT 06510, USA
| | - James C. Iatridis
- Department of Orthopaedics, Icahn School of Medicine at Mount Sinai; New York, NY 10029, USA
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36
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Gu D, Xia Y, Ding Z, Qian J, Gu X, Bai H, Jiang M, Yao D. Inflammation in the Peripheral Nervous System after Injury. Biomedicines 2024; 12:1256. [PMID: 38927464 PMCID: PMC11201765 DOI: 10.3390/biomedicines12061256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Nerve injury is a common condition that occurs as a result of trauma, iatrogenic injury, or long-lasting stimulation. Unlike the central nervous system (CNS), the peripheral nervous system (PNS) has a strong capacity for self-repair and regeneration. Peripheral nerve injury results in the degeneration of distal axons and myelin sheaths. Macrophages and Schwann cells (SCs) can phagocytose damaged cells. Wallerian degeneration (WD) makes the whole axon structure degenerate, creating a favorable regenerative environment for new axons. After nerve injury, macrophages, neutrophils and other cells are mobilized and recruited to the injury site to phagocytose necrotic cells and myelin debris. Pro-inflammatory and anti-inflammatory factors involved in the inflammatory response provide a favorable microenvironment for peripheral nerve regeneration and regulate the effects of inflammation on the body through relevant signaling pathways. Previously, inflammation was thought to be detrimental to the body, but further research has shown that appropriate inflammation promotes nerve regeneration, axon regeneration, and myelin formation. On the contrary, excessive inflammation can cause nerve tissue damage and pathological changes, and even lead to neurological diseases. Therefore, after nerve injury, various cells in the body interact with cytokines and chemokines to promote peripheral nerve repair and regeneration by inhibiting the negative effects of inflammation and harnessing the positive effects of inflammation in specific ways and at specific times. Understanding the interaction between neuroinflammation and nerve regeneration provides several therapeutic ideas to improve the inflammatory microenvironment and promote nerve regeneration.
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Affiliation(s)
- Dandan Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Yiming Xia
- Medical School, Nantong University, Nantong 226001, China
| | - Zihan Ding
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Jiaxi Qian
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Xi Gu
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Huiyuan Bai
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Maorong Jiang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
| | - Dengbing Yao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China (H.B.)
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Chen M, Li F, Qu M, Jin X, He T, He S, Chen S, Yao Q, Wang L, Chen D, Wu X, Xiao G. Pip5k1γ promotes anabolism of nucleus pulposus cells and intervertebral disc homeostasis by activating CaMKII-Ampk pathway in aged mice. Aging Cell 2024:e14237. [PMID: 38840443 DOI: 10.1111/acel.14237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 06/07/2024] Open
Abstract
Degenerative disc disease (DDD) represents a significant global health challenge, yet its underlying molecular mechanisms remain elusive. This study aimed to investigate the role of type 1 phosphatidylinositol 4-phosphate 5-kinase (Pip5k1) in intervertebral disc (IVD) homeostasis and disease. All three Pip5k1 isoforms, namely Pip5k1α, Pip5k1β, and Pip5k1γ, were detectable in mouse and human IVD tissues, with Pip5k1γ displaying a highest expression in nucleus pulposus (NP) cells. The expression of Pip5k1γ was significantly down-regulated in the NP cells of aged mice and patients with severe DDD. To determine whether Pip5k1γ expression is required for disc homeostasis, we generated a Pip5k1γfl/fl; AggrecanCreERT2 mouse model for the conditional knockout of the Pip5k1γ gene in aggrecan-expressing IVD cells. Our findings revealed that the conditional deletion of Pip5k1γ did not affect the disc structure or cellular composition in 5-month-old adult mice. However, in aged (15-month-old) mice, this deletion led to several severe degenerative disc defects, including decreased NP cellularity, spontaneous fibrosis and cleft formation, and a loss of the boundary between NP and annulus fibrosus. At the molecular level, the absence of Pip5k1γ reduced the anabolism of NP cells without markedly affecting their catabolic or anti-catabolic activities. Moreover, the loss of Pip5k1γ significantly dampened the activation of the protective Ampk pathway in NP cells, thereby accelerating NP cell senescence. Notably, Pip5k1γ deficiency blunted the effectiveness of metformin, a potent Ampk activator, in activating the Ampk pathway and mitigating lumbar spine instability (LSI)-induced disc lesions in mice. Overall, our study unveils a novel role for Pip5k1γ in promoting anabolism and maintaining disc homeostasis, suggesting it as a potential therapeutic target for DDD.
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Affiliation(s)
- Mingjue Chen
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
| | - Feiyun Li
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
| | - Minghao Qu
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
- Southern University of Science and Technology Hospital, Shenzhen, China
| | - Xiaowan Jin
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
| | - Tailin He
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
| | - Shuangshuang He
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
| | - Sheng Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Yao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
| | - Lin Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
- Southern University of Science and Technology Hospital, Shenzhen, China
| | - Di Chen
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaohao Wu
- Division of Immunology and Rheumatology, Stanford University, Stanford, California, USA
- VA Palo Alto Health Care System, Palo Alto, California, USA
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Shenzhen Key Laboratory of Cell Microenvironment, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Southern University of Science and Technology, Shenzhen, China
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Wang D, Zhang L, He D, Zhang Y, Zhao L, Miao Z, Cheng W, Zhu C, Shao Y, Ge G, Zhu H, Jin H, Zhang W, Pan H. A natural hydrogel complex improves intervertebral disc degeneration by correcting fatty acid metabolism and inhibiting nucleus pulposus cell pyroptosis. Mater Today Bio 2024; 26:101081. [PMID: 38741924 PMCID: PMC11089368 DOI: 10.1016/j.mtbio.2024.101081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/26/2024] [Accepted: 05/02/2024] [Indexed: 05/16/2024] Open
Abstract
The degeneration of intervertebral discs is strongly associated with the occurrence of pyroptosis in nucleus pulposus (NP) cells. This pyroptosis is characterized by abnormal metabolism of fatty acids in the degenerative pathological state, which is further exacerbated by the inflammatory microenvironment and degradation of the extracellular matrix. In order to address this issue, we have developed a fibrin hydrogel complex (FG@PEV). This intricate formulation amalgamates the beneficial attributes of platelet extravasation vesicles, contributing to tissue repair and regeneration. Furthermore, this complex showcases exceptional stability, gradual-release capabilities, and a high degree of biocompatibility. In order to substantiate the biological significance of FG@PEV in intervertebral disc degeneration (IVDD), we conducted a comprehensive investigation into its potential mechanism of action through the integration of RNA-seq sequencing and metabolomics analysis. Furthermore, these findings were subsequently validated through experimentation in both in vivo and in vitro models. The experimental results revealed that the FG@PEV intervention possesses the capability to reshape the inflammatory microenvironment within the disc. It also addresses the irregularities in fatty acid metabolism of nucleus pulposus cells, consequently hindering cellular pyroptosis and slowing down disc degeneration through the regulation of extracellular matrix synthesis and degradation. As a result, this injectable gel system represents a promising and innovative therapeutic approach for mitigating disc degeneration.
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Affiliation(s)
- Dong Wang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
- Institute of Orthopaedics and Traumatology, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road NO 453, Hangzhou, 310007, Zhejiang Province, PR China
| | - Liangping Zhang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
| | - Du He
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
| | - Yujun Zhang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
| | - Lan Zhao
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
| | - Zhimin Miao
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
| | - Wei Cheng
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
| | - Chengyue Zhu
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
- Institute of Orthopaedics and Traumatology, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road NO 453, Hangzhou, 310007, Zhejiang Province, PR China
| | - Yinyan Shao
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
| | - Guofen Ge
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
| | - Hang Zhu
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
| | - HongTing Jin
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
- Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, PR China
| | - Wei Zhang
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
- Institute of Orthopaedics and Traumatology, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road NO 453, Hangzhou, 310007, Zhejiang Province, PR China
| | - Hao Pan
- Department of Orthopaedics, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Hospital of Traditional Chinese Medicine), Hangzhou, 310000, Zhejiang Province, PR China
- Department of Orthopaedics, Hangzhou Dingqiao Hospital, Huanding Road NO 1630, Hangzhou, 310021, Zhejiang Province, PR China
- Institute of Orthopaedics and Traumatology, Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road NO 453, Hangzhou, 310007, Zhejiang Province, PR China
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Wang Z, Zhu D, Yang F, Chen H, Kang J, Liu W, Lin A, Kang X. POSTN knockdown suppresses IL-1β-induced inflammation and apoptosis of nucleus pulposus cells via inhibiting the NF-κB pathway and alleviates intervertebral disc degeneration. J Cell Commun Signal 2024; 18:e12030. [PMID: 38946726 PMCID: PMC11208126 DOI: 10.1002/ccs3.12030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 03/07/2024] [Accepted: 04/01/2024] [Indexed: 07/02/2024] Open
Abstract
The aim of this study is to investigate the effects of POSTN on IL-1β induced inflammation, apoptosis, NF-κB pathway and intervertebral disc degeneration (IVDD) in Nucleus pulposus (NP) cells (NPCs). NP tissue samples with different Pfirrmann grades were collected from patients with different degrees of IVDD. Western blot and immunohistochemical staining were used to compare the expression of POSTN protein in NP tissues. Using the IL-1β-induced IVDD model, NPCs were transfected with lentivirus-coated si-POSTN to down-regulate the expression of POSTN and treated with CU-T12-9 to evaluate the involvement of NF-κB pathway. Western blot, immunofluorescence, and TUNEL staining were used to detect the expression changes of inflammation, apoptosis and NF-κB pathway-related proteins in NPCs. To investigate the role of POSTN in vivo, a rat IVDD model was established by needle puncture of the intervertebral disc. Rats were injected with lentivirus-coated si-POSTN, and H&E staining and immunohistochemical staining were performed. POSTN expression is positively correlated with the severity of IVDD in human. POSTN expression was significantly increased in the IL-1β-induced NPCs degeneration model. Downregulation of POSTN protects NPCs from IL-1β-induced inflammation and apoptosis. CU-T12-9 treatment reversed the protective effect of si-POSTN on NPCs. Furthermore, lentivirus-coated si-POSTN injection partially reversed NP tissue damage in the IVDD model in vivo. POSTN knockdown reduces inflammation and apoptosis of NPCs by inhibiting NF-κB pathway, and ultimately prevents IVDD. Therefore, POSTN may be an effective target for the treatment of IVDD.
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Affiliation(s)
- Zhaoheng Wang
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Daxue Zhu
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Fengguang Yang
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Haiwei Chen
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Jihe Kang
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Wenzhao Liu
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Aixin Lin
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
| | - Xuewen Kang
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
- Key Laboratory of Orthopedics Disease of Gansu ProvinceLanzhou University Second HospitalLanzhouChina
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Zhang D, Xu D, Huang X, Wei Y, Tang F, Qin X, Liang W, Liang Z, Jin L, Wang H, Wang H. Puerarin-Loaded Electrospun Patches with Anti-Inflammatory and Pro-Collagen Synthesis Properties for Pelvic Floor Reconstruction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308590. [PMID: 38509840 DOI: 10.1002/advs.202308590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/02/2024] [Indexed: 03/22/2024]
Abstract
Pelvic organ prolapse (POP) is one of the most common pelvic floor dysfunction disorders worldwide. The weakening of pelvic connective tissues initiated by excessive collagen degradation is a leading cause of POP. However, the patches currently used in the clinic trigger an unfavorable inflammatory response, which often leads to implantation failure and the inability to simultaneously reverse progressive collagen degradation. Therefore, to overcome the present challenges, a new strategy is applied by introducing puerarin (Pue) into poly(l-lactic acid) (PLLA) using electrospinning technology. PLLA improves the mechanical properties of the patch, while Pue offers intrinsic anti-inflammatory and pro-collagen synthesis effects. The results show that Pue is released from PLLA@Pue in a sustained manner for more than 20 days, with a total release rate exceeding 80%. The PLLA@Pue electrospun patches also show good biocompatibility and low cytotoxicity. The excellent anti-inflammatory and pro-collagen synthesis properties of the PLLA@Pue patch are demonstrated both in vitro in H2O2-stimulated mouse fibroblasts and in vivo in rat abdominal wall muscle defects. Therefore, it is believed that this multifunctional electrospun patch integrating anti-inflammatory and pro-collagen synthesis properties can overcome the limitations of traditional patches and has great prospects for efficient pelvic floor reconstruction.
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Affiliation(s)
- Di Zhang
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Dong Xu
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Xiaobo Huang
- Department of Ophthalmology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Yingqi Wei
- Translational Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Fuxin Tang
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Xiusen Qin
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Weiwen Liang
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Zhongping Liang
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, China
| | - Lin Jin
- International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou, 466001, China
| | - Hui Wang
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
| | - Huaiming Wang
- Department of General Surgery (Colorectal Surgery), Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China
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Cannon K, Gill S, Mercuri J. Mesenchymal stromal cell response to intervertebral disc-like pH is tissue source dependent. J Orthop Res 2024; 42:1303-1313. [PMID: 38084765 DOI: 10.1002/jor.25766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/30/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023]
Abstract
Intervertebral disc (IVD) degeneration (IVDD) has become increasingly prevalent and is a common contributing factor to low back pain. Current treatment options are limited to either symptom management or surgery. A promising treatment option being explored is intradiscal administration of mesenchymal stromal cells (MSCs). However, there remains a gap in knowledge as to whether MSCs from different tissue sources have similar responses to the low pH microenvironment of the IVD and the possible mechanisms governing these responses. To study this, MSCs from three different tissue sources: adipose (adipose-derived mesenchymal stem cell), bone marrow (bone marrow mesenchymal stem cells), and amnion (amniotic membrane mesenchymal stem cell) were cultured at low pHs representative of IVDD. MSCs were assessed for survival, senescence, apoptosis, metabolic activity, and cytokine release profile. Additionally, western blot was utilized to assess acid sensing ion channel 1 and 3 expression. The results of this study indicated that MSC viability, cell proliferation, senescence, and metabolic activity is negatively affected by low pH and alters MSC cytokine production. This study also demonstrated that MSCs behavior is dependent on tissue source. Understanding how MSC behavior is altered by pH will allow further research aimed at increasing the efficacy of MSC therapy to promote in situ IVD tissue regeneration to combat IVDD.
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Affiliation(s)
- Kyle Cannon
- Laboratory of Orthopaedic Tissue Regeneration and Orthobiologics, Department of Bioengineering, Clemson University, Clemson, South Carolina, USA
| | - Sanjitpal Gill
- Department of Orthopaedic Surgery, The Steadman Clinic, Vail, Colorado, USA
- Department Spine & Neck, The Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Jeremy Mercuri
- Laboratory of Orthopaedic Tissue Regeneration and Orthobiologics, Department of Bioengineering, Clemson University, Clemson, South Carolina, USA
- Department of Bioengineering, Frank H. Stelling and C. Dayton Riddle, Orthopaedic Education and Research Laboratory, Clemson University Biomedical Engineering Innovation Campus, Greenville, South Carolina, USA
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Fan C, Wang W, Yu Z, Wang J, Xu W, Ji Z, He W, Hua D, Wang W, Yao L, Deng Y, Geng D, Wu X, Mao H. M1 macrophage-derived exosomes promote intervertebral disc degeneration by enhancing nucleus pulposus cell senescence through LCN2/NF-κB signaling axis. J Nanobiotechnology 2024; 22:301. [PMID: 38816771 PMCID: PMC11140985 DOI: 10.1186/s12951-024-02556-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
Intervertebral disc degeneration (IVDD) is the primary factor contributing to low back pain (LBP). Unlike elderly patients, many young IVDD patients usually have a history of trauma or long-term abnormal stress, which may lead to local inflammatory reaction causing by immune cells, and ultimately accelerates degeneration. Research has shown the significance of M1-type macrophages in IVDD; nevertheless, the precise mechanism and the route by which it influences the function of nucleus pulposus cell (NPC) remain unknown. Utilizing a rat acupuncture IVDD model and an NPC degeneration model induced by lipopolysaccharide (LPS), we investigated the function of M1 macrophage-derived exosomes (M1-Exos) in IVDD both in vivo and in vitro in this study. We found that M1-Exos enhanced LPS-induced NPC senescence, increased the number of SA-β-gal-positive cells, blocked the cell cycle, and promoted the activation of P21 and P53. M1-Exos derived from supernatant pretreated with the exosome inhibitor GW4869 reversed this result in vivo and in vitro. RNA-seq showed that Lipocalin2 (LCN2) was enriched in M1-Exos and targeted the NF-κB pathway. The quantity of SA-β-gal-positive cells was significantly reduced with the inhibition of LCN2, and the expression of P21 and P53 in NPCs was decreased. The same results were obtained in the acupuncture-induced IVDD model. In addition, inhibition of LCN2 promotes the expression of type II collagen (Col-2) and inhibits the expression of matrix metalloproteinase 13 (MMP13), thereby restoring the equilibrium of metabolism inside the extracellular matrix (ECM) in vitro and in vivo. In addition, the NF-κB pathway is crucial for regulating M1-Exo-mediated NPC senescence. After the addition of M1-Exos to LPS-treated NPCs, p-p65 activity was significantly activated, while si-LCN2 treatment significantly inhibited p-p65 activity. Therefore, this paper demonstrates that M1 macrophage-derived exosomes have the ability to deliver LCN2, which activates the NF-κB signaling pathway, and exacerbates IVDD by accelerating NPC senescence. This may shed new light on the mechanism of IVDD and bring a fresh approach to IVDD therapy.
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Affiliation(s)
- Chunyang Fan
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Wei Wang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Zilin Yu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Jiale Wang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Wei Xu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhongwei Ji
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Pain Management, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Wei He
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
- Department of Orthopaedic Surgery, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China
| | - Di Hua
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wentao Wang
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Linye Yao
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Yongkang Deng
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Dechun Geng
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China.
| | - Xiexing Wu
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China.
| | - Haiqing Mao
- Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Suzhou Medical College, Soochow University, Suzhou, Jiangsu, China.
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Li M, Yu X, Chen X, Jiang Y, Zeng Y, Ren R, Nie M, Zhang Z, Bao Y, Kang H. Genkwanin alleviates intervertebral disc degeneration via regulating ITGA2/PI3K/AKT pathway and inhibiting apoptosis and senescence. Int Immunopharmacol 2024; 133:112101. [PMID: 38640717 DOI: 10.1016/j.intimp.2024.112101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/07/2024] [Accepted: 04/13/2024] [Indexed: 04/21/2024]
Abstract
Intervertebral disc degeneration (IVDD) is a progressive degenerative disease influenced by various factors. Genkwanin, a known anti-inflammatory flavonoid, has not been explored for its potential in IVDD management. This study aims to investigate the effects and mechanisms of genkwanin on IVDD. In vitro, cell experiments revealed that genkwanin dose-dependently inhibited Interleukin-1β-induced expression levels of inflammatory factors (Interleukin-6, inducible nitric oxide synthase, cyclooxygenase-2) and degradation metabolic protein (matrix metalloproteinase-13). Concurrently, genkwanin upregulated the expression of synthetic metabolism genes (type II collagen, aggrecan). Moreover, genkwanin effectively reduced the phosphorylation of phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin, mitogen-activated protein kinase (MAPK), and nuclear factor-κB (NF-κB) pathways. Transcriptome sequencing analysis identified integrin α2 (ITGA2) as a potential target of genkwanin, and silencing ITGA2 reversed the activation of PI3K/AKT pathway induced by Interleukin-1β. Furthermore, genkwanin alleviated Interleukin-1β-induced senescence and apoptosis in nucleus pulposus cells. In vivo animal experiments demonstrated that genkwanin mitigated the progression of IVDD in the rat model through imaging and histological examinations. In conclusion, This study suggest that genkwanin inhibits inflammation in nucleus pulposus cells, promotes extracellular matrix remodeling, suppresses cellular senescence and apoptosis, through the ITGA2/PI3K/AKT, NF-κB and MAPK signaling pathways. These findings indicate that genkwanin may be a promising therapeutic candidate for IVDD.
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Affiliation(s)
- Mengwei Li
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Xiaojun Yu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China; Shaanxi Key Laboratory of Spine Bionic Treatment, Xi'an, Shaanxi, China
| | - Xin Chen
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yongqiao Jiang
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yunqian Zeng
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Ranyue Ren
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Mingbo Nie
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Ziyang Zhang
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yuan Bao
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
| | - Hao Kang
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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Que Y, Wong C, Qiu J, Gao W, Lin Y, Zhou H, Gao B, Li P, Deng Z, Shi H, Hu W, Liu S, Peng Y, Su P, Xu C, Liang A, Qiu X, Huang D. Maslinic acid alleviates intervertebral disc degeneration by inhibiting the PI3K/AKT and NF-κB signaling pathways. Acta Biochim Biophys Sin (Shanghai) 2024; 56:776-788. [PMID: 38495003 PMCID: PMC11187486 DOI: 10.3724/abbs.2024027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/04/2024] [Indexed: 03/19/2024] Open
Abstract
Intervertebral disc degeneration (IDD) is the cause of low back pain (LBP), and recent research has suggested that inflammatory cytokines play a significant role in this process. Maslinic acid (MA), a natural compound found in olive plants ( Olea europaea), has anti-inflammatory properties, but its potential for treating IDD is unclear. The current study aims to investigate the effects of MA on TNFα-induced IDD in vitro and in other in vivo models. Our findings suggest that MA ameliorates the imbalance of the extracellular matrix (ECM) and mitigates senescence by upregulating aggrecan and collagen II levels as well as downregulating MMP and ADAMTS levels in nucleus pulposus cells (NPCs). It can also impede the progression of IDD in rats. We further find that MA significantly affects the PI3K/AKT and NF-κB pathways in TNFα-induced NPCs determined by RNA-seq and experimental verification, while the AKT agonist Sc-79 eliminates these signaling cascades. Furthermore, molecular docking simulation shows that MA directly binds to PI3K. Dysfunction of the PI3K/AKT pathway and ECM metabolism has also been confirmed in clinical specimens of degenerated nucleus pulposus. This study demonstrates that MA may hold promise as a therapeutic agent for alleviating ECM metabolism disorders and senescence to treat IDD.
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Affiliation(s)
- Yichen Que
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Chipiu Wong
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Jincheng Qiu
- Panyu Hospital of Chinese MedicineDepartment of Minimally Invasive Spine SurgeryGuangzhou511408China
| | - Wenjie Gao
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Youxi Lin
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Hang Zhou
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Bo Gao
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Pengfei Li
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Zhihuai Deng
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Huihong Shi
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Wenjun Hu
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Song Liu
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Yan Peng
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Peiqiang Su
- Department of Orthopedic Surgerythe First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou510080China
| | - Caixia Xu
- Research Centre for Translational Medicinethe First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou510006China
| | - Anjing Liang
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Xianjian Qiu
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Dongsheng Huang
- Department of Orthopedic SurgerySun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
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Zhong H, Li M, Wu H, Ying H, Zhong M, Huang M. Silencing DDX3 Attenuates Interleukin-1β-Induced Intervertebral Disc Degeneration Through Inhibiting Pyroptosis. Inflammation 2024:10.1007/s10753-024-02042-1. [PMID: 38735906 DOI: 10.1007/s10753-024-02042-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/08/2024] [Accepted: 04/30/2024] [Indexed: 05/14/2024]
Abstract
Intervertebral disc degeneration (IVDD) is a common disorder associated with chronic inflammation and cell death. In this study, an IVDD rat model was created through Interleukin-1β (IL-1β) injection. The degeneration of intervertebral disc tissues was assessed using magnetic resonance imaging (MRI), followed by hematoxylin and eosin (H&E) and terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) staining. RNA sequencing was performed to identify differentially expressed genes (DEGs) between the IVDD model and control rats. The expression levels of DEGs (DEAD-box polypeptide 3 (DDX3), lysine-specific demethylase 5D (KDM5D), interferon-induced gene-1 (IFIT1), ribosomal protein S10 (RPS10), tenomodulin (TNMD), and pentraxin 3 (PTX3)) were measured by real-time quantitative polymerase chain reaction (RT-qPCR). The regulatory effect of DDX3 on pyroptosis in IL-1β-treated nucleus pulpous (NP) cells was assessed after transfection with siRNA of DDX3. A total of 601 DEGs were identified from the IVDD model rat, and were abundant in extracellular matrix (ECM) organization, ECM-receptor interaction, and inflammatory pathways, including the PI3K-Akt, TNF, and AMPK signaling pathways. DDX3, KDM5D, and IFIT1 levels were notably elevated, whereas RPS10, TNMD, and PTX3 levels were decreased in the IL-1β-induced IVDD rat model. Moreover, silencing DDX3 promoted cell proliferation and abolished IL-1β-induced cell apoptosis and pyroptosis. This study revealed the role of DDX3 in IVDD pyroptosis, providing potential target for IVDD management.
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Affiliation(s)
- Hongfa Zhong
- Department of Orthopaedics, Ganzhou People's Hospital, No.16 Meiguang Avenue, Ganzhou City, Jiangxi Province, 341000, China.
| | - Mingheng Li
- Department of Orthopaedics, Ganzhou People's Hospital, No.16 Meiguang Avenue, Ganzhou City, Jiangxi Province, 341000, China
| | - Haijian Wu
- Department of Orthopaedics, Ganzhou People's Hospital, No.16 Meiguang Avenue, Ganzhou City, Jiangxi Province, 341000, China
| | - Hui Ying
- Department of Orthopaedics, Ganzhou People's Hospital, No.16 Meiguang Avenue, Ganzhou City, Jiangxi Province, 341000, China
| | - Mingliang Zhong
- Department of Orthopaedics, Ganzhou People's Hospital, No.16 Meiguang Avenue, Ganzhou City, Jiangxi Province, 341000, China
| | - Mouzhang Huang
- Department of Orthopaedics, Ganzhou People's Hospital, No.16 Meiguang Avenue, Ganzhou City, Jiangxi Province, 341000, China
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Tang Y, Liu T, Sun S, Peng Y, Huang X, Wang S, Zhou Z. Role and Mechanism of Growth Differentiation Factor 15 in Chronic Kidney Disease. J Inflamm Res 2024; 17:2861-2871. [PMID: 38741613 PMCID: PMC11090192 DOI: 10.2147/jir.s451398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 04/25/2024] [Indexed: 05/16/2024] Open
Abstract
GDF-15 is an essential member of the transforming growth factor-beta superfamily. Its functions mainly involve in tissue injury, inflammation, fibrosis, regulation of appetite and weight, development of tumor, and cardiovascular disease. GDF-15 is involved in various signaling pathways, such as MAPK pathway, PI3K/AKT pathway, STAT3 pathway, RET pathway, and SMAD pathway. In addition, several factors such as p53, ROS, and TNF-α participate the regulation of GDF-15. However, the specific mechanism of these factors regulating GDF-15 is still unclear and more research is needed to explore them. GDF-15 mainly improves the function of kidneys in CKD and plays an important role in the prediction of CKD progression and cardiovascular complications. In addition, the role of GDF-15 in the kidney may be related to the SMAD and MAPK pathways. However, the specific mechanism of these pathways remains unclear. Accordingly, more research on the specific mechanism of GDF-15 affecting kidney disease is needed in the future. In conclusion, GDF-15 may be a therapeutic target for kidney disease.
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Affiliation(s)
- Yifang Tang
- Department of Nephrology, the First Affiliated Hospital, Kunming Medical University, Kunming, People’s Republic of China
| | - Tao Liu
- Organ Transplantation Center, the First Affiliated Hospital, Kunming Medical University, Kunming, People’s Republic of China
| | - Shibo Sun
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, Kunming, People’s Republic of China
| | - Youbo Peng
- Department of Nephrology, the First Affiliated Hospital, Kunming Medical University, Kunming, People’s Republic of China
| | - Xiaoxiao Huang
- Department of Nephrology, Xishuangbanna Dai Autonomous Prefecture People’s Hospital, Xishuangbanna, People’s Republic of China
| | - Shuangquan Wang
- Department of Nephrology, Xishuangbanna Dai Autonomous Prefecture People’s Hospital, Xishuangbanna, People’s Republic of China
| | - Zhu Zhou
- Department of Nephrology, the First Affiliated Hospital, Kunming Medical University, Kunming, People’s Republic of China
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Kim SY, Lee JO, Lee S, Heo J, Cho KH, Bahuguna A, Yoo KH, Kim BJ. Ozonated Sunflower Oil (OSO) Alleviates Inflammatory Responses in Oxazolone-Induced Atopic Dermatitis (AD)-Like Mice and LPS-Treated RAW 264.7 Cells. J Microbiol Biotechnol 2024; 34:765-773. [PMID: 38247218 DOI: 10.4014/jmb.2310.10037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/21/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024]
Abstract
Ozone, a highly reactive oxidant molecule, is widely used as a complementary therapy for various skin diseases, including wound healing, pressure ulcers, diabetic foot, and infections. However, there is limited research on the effectiveness of ozone for atopic dermatitis (AD). Ozonated sunflower oil (OSO) is an active ingredient obtained from partially ozonated sunflower oil (SO). OSO markedly reduced the LPS-induced increase in IL-1β and nitric oxide (NO) levels in RAW 264.7 mouse macrophage cells. Oxazolone (OXZ) was applied to hairless mice to induce AD-like skin symptoms and immune response. OSO significantly alleviated the OXZ-induced increases in the number of infiltrating mast cells, epidermal thickness, AD symptoms, thymic stromal lymphopoietin (TSLP), and filaggrin, as well as the serum levels of NO, IgE, IL-1β, and TNF-α. Furthermore, OSO inhibited the IL-4/STAT3/MAPK pathway and the expression of NF-κB. Our results suggest that OSO treatment could relieve AD-mediated skin damage through its anti-inflammatory and antioxidant activities. Therefore, it can be used as a therapeutic agent against AD-related skin diseases.
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Affiliation(s)
- Su-Young Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
| | - Jung Ok Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Sue Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
| | - Jihye Heo
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
| | - Kyung-Hyun Cho
- Raydel Research Institute, Medical Innovation Complex, Daegu 41061, Republic of Korea
| | - Ashutosh Bahuguna
- Raydel Research Institute, Medical Innovation Complex, Daegu 41061, Republic of Korea
| | - Kwang-Ho Yoo
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
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Qi C, Sun Q, Xiao D, Zhang M, Gao S, Guo B, Lin Y. Tetrahedral framework nucleic acids/hyaluronic acid-methacrylic anhydride hybrid hydrogel with antimicrobial and anti-inflammatory properties for infected wound healing. Int J Oral Sci 2024; 16:30. [PMID: 38622128 PMCID: PMC11018755 DOI: 10.1038/s41368-024-00290-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 04/17/2024] Open
Abstract
Bacterial resistance and excessive inflammation are common issues that hinder wound healing. Antimicrobial peptides (AMPs) offer a promising and versatile antibacterial option compared to traditional antibiotics, with additional anti-inflammatory properties. However, the applications of AMPs are limited by their antimicrobial effects and stability against bacterial degradation. TFNAs are regarded as a promising drug delivery platform that could enhance the antibacterial properties and stability of nanodrugs. Therefore, in this study, a composite hydrogel (HAMA/t-GL13K) was prepared via the photocross-linking method, in which tFNAs carry GL13K. The hydrogel was injectable, biocompatible, and could be instantly photocured. It exhibited broad-spectrum antibacterial and anti-inflammatory properties by inhibiting the expression of inflammatory factors and scavenging ROS. Thereby, the hydrogel inhibited bacterial infection, shortened the wound healing time of skin defects in infected skin full-thickness defect wound models and reduced scarring. The constructed HAMA/tFNA-AMPs hydrogels exhibit the potential for clinical use in treating microbial infections and promoting wound healing.
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Affiliation(s)
- Cai Qi
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qiang Sun
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, China
| | - Dexuan Xiao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mei Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shaojingya Gao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bin Guo
- Department of Stomatology, The First Medical Centre, Chinese PLA General Hospital, Beijing, China.
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China.
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, China.
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Zhou X, Zhang YC, Lu KQ, Xiao R, Tang WC, Wang F. The Role of p38 Mitogen-Activated Protein Kinase-Mediated F-Actin in the Acupuncture-Induced Mitigation of Inflammatory Pain in Arthritic Rats. Brain Sci 2024; 14:380. [PMID: 38672029 PMCID: PMC11048453 DOI: 10.3390/brainsci14040380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The analgesic efficacy of acupuncture has been widely recognized. However, the mechanism by which manual acupuncture-generated mechanical stimuli translate into biological signals remains unclear. This study employed a CFA-induced inflammatory pain rat model. Acupuncture intervention was then performed following standardized procedures. Enzyme-linked immunosorbent assay (ELISA) assessed inflammatory cytokines levels, while immunofluorescence and qRT-PCR screened the level of p38 and F-actin expression in the ST36 acupoint area of rats. Results indicated increased inflammatory factors, including IL-1β and TNFα, with reduced paw withdrawal mechanical threshold (PWMT) and paw withdrawal thermal latency (PWTL) in CFA rats compared to unmodeled rats. After acupuncture intervention, the heightened expression level of F-actin and p38 mRNA and the phosphorylation of p38 in the acupoint area was observed alongside decreased inflammatory factors in diseased ankle joints. The application of lifting and thrusting manipulations further enhanced the effect of acupuncture, in which the molecular expression level of muscle and connective tissue increased most significantly, indicating that these two tissues play a major role in the transformation of acupuncture stimulation. Moreover, antagonizing p38 expression hindered acupuncture efficacy, supporting the hypothesis that p38 MAPK-mediated F-actin transduces mechanical signals generated by acupuncture and related manipulation into biological signals.
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Affiliation(s)
| | | | | | | | | | - Fan Wang
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; (X.Z.); (Y.-C.Z.); (K.-Q.L.); (R.X.); (W.-C.T.)
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50
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Liu L, Wang W, Huang L, Xian Y, Ma W, Fan J, Li Y, Liu H, Zheng Z, Wu D. Injectable pathological microenvironment-responsive anti-inflammatory hydrogels for ameliorating intervertebral disc degeneration. Biomaterials 2024; 306:122509. [PMID: 38377847 DOI: 10.1016/j.biomaterials.2024.122509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/31/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
Chronic local inflammation and resulting cellular dysfunction of nucleus pulposus (NP) cells are important pathogenic factors of intervertebral disc degeneration (IDD). Injectable pathological microenvironment-responsive hydrogels hold significant potential for treating IDD by adapting to dynamic microenvironment of IDD. Herein, we proposed an injectable gelatin-based hydrogel drug delivery system that could respond to the pathological microenvironment of IDD for controlled release of anti-inflammatory drug to promote degenerative NP repair. The hydrogel system was prepared by conjugating phenylboronic acid-modified gelatin methacryloyl (GP) with the naturally extracted anti-inflammatory drug epigallocatechin-3-gallate (EGCG) through dynamic boronic esters. The hydrogel exhibited excellent degradability, injectability, antioxidant properties, anti-inflammatory effects, and biocompatibility. It also displayed responsive-release of EGCG under high reactive oxygen species (ROS) levels and acidic conditions. The hydrogel demonstrated remarkable cytoprotective effects on NP cells in both hyperactive ROS environments and inflammatory cytokine-overexpressed environments in vitro. In vivo studies revealed that the hydrogel injected in situ could effectively ameliorate the intervertebral disc degeneration by maintaining the disc height and NP tissue structure in a rat IDD model. The hydrogel system exhibited excellent biocompatibility and responsive-release of diol-containing drugs in pathological microenvironments, indicating its potential application as a drug delivery platform.
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Affiliation(s)
- Lei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wantao Wang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China; Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Lin Huang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yiwen Xian
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wenzheng Ma
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China; Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jinghao Fan
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yixi Li
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Hongmei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China; Pain Research Center, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Decheng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
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