1
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Li W, Xu JW, Chai JL, Guo CC, Li GZ, Gao M, Liang XZ. Complex causal association between genetically predicted 731 immunocyte phenotype and osteonecrosis: A bidirectional Two-sample mendelian randomization analysis. Int J Surg 2024; 110:01279778-990000000-01223. [PMID: 38498404 PMCID: PMC11175804 DOI: 10.1097/js9.0000000000001327] [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: 01/09/2024] [Accepted: 03/03/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE Previous studies have explored the role of immune cells on osteonecrosis. This Mendelian randomization (MR) study further assessed 731 immunocyte phenotypes on osteonecrosis whether a causal relationship exists and provides some evidence of causality. METHODS The 731 immunocyte phenotypes and osteonecrosis data used in this study were obtained from their respective genome-wide association studies (GWAS). We used inverse variable weighting (IVW) as the primary analysis method. In addition, we simultaneously employed multiple analytical methods, including MR-Egger, weighted mode, simple mode, and weighted median, to strengthen the final results. Finally, sensitivity analyses were conducted to verify the stability and feasibility of the data. RESULTS The results of the IVW method of MR analysis showed that 8 immunocyte phenotypes were positively associated with osteonecrosis (P<0.05, OR > 1); 18 immunocyte phenotypes were negatively associated with osteonecrosis (P<0.05, OR<1), none of which were heterogeneous or horizontally pleiotropic (P > 0.05) or reverse causality. In addition to this, in reverse MR, osteonecrosis was positively associated with 10 additional immunocyte phenotypes (P<0.05, OR > 1) and negatively associated with 14 immunocyte phenotypes (P<0.05, OR<1). And none of them had heterogeneity and horizontal pleiotropy (P > 0.05) or reverse causality. CONCLUSIONS We demonstrated a complex causal relationship between multiple immune phenotypes and osteonecrosis through a comprehensive two-way two-sample MR analysis, highlighting the complex pattern of interactions between the immune system and osteonecrosis.
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Affiliation(s)
- Wei Li
- College of Traditional Chinese Medicine
| | - Jing-Wen Xu
- First College of Clinical Medicine
- Department of Cardiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Cardiac Electrophysiology and Arrhythmia, Jinan, China
| | | | - Cong-Cong Guo
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital
| | | | - Mei Gao
- Department of Cardiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Cardiac Electrophysiology and Arrhythmia, Jinan, China
| | - Xue-Zhen Liang
- First College of Clinical Medicine
- Orthopaedic Microsurgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong
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2
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Bassan Marinho Maciel G, Marinho Maciel R, Linhares Ferrazzo K, Cademartori Danesi C. Etiopathogenesis of medication-related osteonecrosis of the jaws: a review. J Mol Med (Berl) 2024; 102:353-364. [PMID: 38302741 DOI: 10.1007/s00109-024-02425-9] [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: 08/24/2023] [Revised: 12/29/2023] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
This study compiles the main hypotheses involved in the etiopathogenesis of medication-related osteonecrosis of the jaw (MRONJ). A narrative review of the literature was performed. The etiopathogenesis of MRONJ is multifactorial and not fully understood. The main hypothesis considers the disturbance of bone turnover caused by anti-resorptive drugs. Bisphosphonates and denosumab inhibit osteoclast activity through different action mechanisms, accumulating bone microfracture. Other hypotheses also consider oral infection and inflammation, the antiangiogenic effect and soft tissue toxicity of bisphosphonates, and the inhibition of lymphangiogenesis. Knowledge of the current theories for MRONJ is necessary to define future studies and protocols to minimize the incidence of this severe condition.
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Affiliation(s)
- Gabriel Bassan Marinho Maciel
- Postgraduate Program in Dental Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil.
| | - Roberto Marinho Maciel
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil
| | - Kívia Linhares Ferrazzo
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil
| | - Cristiane Cademartori Danesi
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil
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3
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Shi BY, Sriram V, Wu SY, Huang D, Cheney A, Metzger MF, Sundberg O, Lyons KM, McKenna CE, Nishimura I, Kremen TJ. Novel bisphosphonate-based cathepsin K-triggered compound targets the enthesis without impairing soft tissue-to-bone healing. Front Bioeng Biotechnol 2024; 12:1308161. [PMID: 38433822 PMCID: PMC10905384 DOI: 10.3389/fbioe.2024.1308161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024] Open
Abstract
Background: Osteoadsorptive fluorogenic sentinel 3 (OFS-3) is a recently described compound that contains a bone-targeting bisphosphonate (BP) and cathepsin K (Ctsk)-triggered fluorescence signal. A prior study in a murine Achilles repair model demonstrated its effectiveness at targeting the site of tendon-to-bone repair, but the intrinsic effect of this novel bisphosphonate chaperone on tendon-to-bone healing has not been previously explored. We hypothesized that application of this bisphosphonate-fluorophore cargo conjugate would not affect the biomechanical properties or histologic appearance of tendon-bone repairs. Materials and Methods: Right hindlimb Achilles tendon-to-bone repair was performed on 12-week old male mice. Animals were divided into 2 groups of 18 each: 1) Achilles repair with OFS-3 applied directly to the repair site prior to closure, and 2) Achilles repair with saline applied prior to closure. Repaired hindlimbs from 12 animals per group were harvested at 6 weeks for biomechanical analysis with a custom 3D-printed jig. At 4 and 6 weeks, repaired hindlimbs from the remaining animals were assessed histologically using H&E, immunohistochemistry (IHC) staining for the presence of Ctsk, and second harmonic generation (SHG) imaging to evaluate collagen fibers. Results: At 6 weeks, there was no significant difference in failure load, stiffness, toughness, or displacement to failure between repaired hindlimbs that received OFS-3 versus saline. There was no difference in tissue healing on H&E or Ctsk staining on immunohistochemistry between animals that received OFS-3 versus saline. Finally, second harmonic generation imaging demonstrated no difference in collagen fiber parameters between the two groups. Conclusion: OFS-3 did not significantly affect the biomechanical properties or histologic appearance of murine Achilles tendon-to-bone repairs. This study demonstrates that OFS-3 can target the site of tendon-to-bone repair without causing intrinsic negative effects on healing. Further development of this drug delivery platform to target growth factors to the site of tendon-bone repair is warranted.
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Affiliation(s)
- Brendan Y. Shi
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
| | - Varun Sriram
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
| | - Shannon Y. Wu
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
| | - Dave Huang
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Alexis Cheney
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
| | - Melodie F. Metzger
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Oskar Sundberg
- Department of Chemistry, University of Southern California, Los Angeles, CA, United States
| | - Karen M. Lyons
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
- Department of Molecular, Cellular, and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, United States
| | - Charles E. McKenna
- Department of Chemistry, University of Southern California, Los Angeles, CA, United States
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, School of Dentistry, University of California at Los Angeles, Los Angeles, CA, United States
| | - Thomas J. Kremen
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, United States
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4
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Kondo T, Gleason A, Okawa H, Hokugo A, Nishimura I. Mouse gingival single-cell transcriptomic atlas identified a novel fibroblast subpopulation activated to guide oral barrier immunity in periodontitis. eLife 2023; 12:RP88183. [PMID: 38015204 PMCID: PMC10684155 DOI: 10.7554/elife.88183] [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] [Indexed: 11/29/2023] Open
Abstract
Periodontitis, one of the most common non-communicable diseases, is characterized by chronic oral inflammation and uncontrolled tooth supporting alveolar bone resorption. Its underlying mechanism to initiate aberrant oral barrier immunity has yet to be delineated. Here, we report a unique fibroblast subpopulation activated to guide oral inflammation (AG fibroblasts) identified in a single-cell RNA sequencing gingival cell atlas constructed from the mouse periodontitis models. AG fibroblasts localized beneath the gingival epithelium and in the cervical periodontal ligament responded to the ligature placement and to the discrete topical application of Toll-like receptor stimulants to mouse maxillary tissue. The upregulated chemokines and ligands of AG fibroblasts linked to the putative receptors of neutrophils in the early stages of periodontitis. In the established chronic inflammation, neutrophils, together with AG fibroblasts, appeared to induce type 3 innate lymphoid cells (ILC3s) that were the primary source of interleukin-17 cytokines. The comparative analysis of Rag2-/- and Rag2-/-Il2rg-/- mice suggested that ILC3 contributed to the cervical alveolar bone resorption interfacing the gingival inflammation. We propose the AG fibroblast-neutrophil-ILC3 axis as a previously unrecognized mechanism which could be involved in the complex interplay between oral barrier immune cells contributing to pathological inflammation in periodontitis.
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Affiliation(s)
- Takeru Kondo
- Weintraub Center for Reconstructive Biotechnology, UCLA School of DentistryLos AngelesUnited States
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of DentistrySendaiJapan
| | - Annie Gleason
- Weintraub Center for Reconstructive Biotechnology, UCLA School of DentistryLos AngelesUnited States
- UCLA Bruin in Genomics Summer ProgramLos AngelesUnited States
| | - Hiroko Okawa
- Weintraub Center for Reconstructive Biotechnology, UCLA School of DentistryLos AngelesUnited States
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of DentistrySendaiJapan
| | - Akishige Hokugo
- Weintraub Center for Reconstructive Biotechnology, UCLA School of DentistryLos AngelesUnited States
- Regenerative Bioengineering and Repair Laboratory, Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLALos AngelesUnited States
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, UCLA School of DentistryLos AngelesUnited States
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5
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Kremen TJ, Shi BY, Wu SY, Sundberg O, Sriram V, Kim W, Sheyn D, Lyons KM, Wang W, McKenna CE, Nishimura I. Biologically-coupled bisphosphonate chaperones effectively deliver molecules to the site of soft tissue-bone healing. J Orthop Res 2023; 41:2250-2260. [PMID: 37087676 DOI: 10.1002/jor.25579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/26/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023]
Abstract
Tendon injuries are common and often treated surgically, however, current tendon repair healing results in poorly organized fibrotic tissue. While certain growth factors have been reported to improve both the strength and organization of the repaired enthesis, their clinical applicability is severely limited due to a lack of appropriate delivery strategies. In this study, we evaluated a recently developed fluorescent probe, Osteoadsorptive Fluorogenic Sentinel-3 that is composed of a bone-targeting bisphosphonate (BP) moiety linked to fluorochrome and quencher molecules joined via a cathepsin K-sensitive peptide sequence. Using a murine Achilles tendon-to-bone repair model, BP-based and/or Ctsk-coupled imaging probes were applied either locally or systemically. Fluorescence imaging was used to quantify the resultant signal in vivo. After tendon-bone repair, animals that received either local or systemic administration of imaging probes demonstrated significantly higher fluorescence signal at the repair site compared to the sham surgery group at all time points (p < 0.001), with signal peaking at 7-10 days after surgery. Our findings demonstrate the feasibility of using a novel BP-based targeting and Ctsk-activated delivery of molecules to the site of tendon-to-bone repair and creates a foundation for further development of this platform as an effective strategy to deliver bioactive molecules to sites of musculoskeletal injury.
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Affiliation(s)
- Thomas J Kremen
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Brendan Y Shi
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Shannon Y Wu
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Oskar Sundberg
- Department of Chemistry, University of Southern California, Los Angeles, California, USA
| | - Varun Sriram
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Won Kim
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Dmitriy Sheyn
- Orthopaedic Stem Cell Research Laboratory, Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Karen M Lyons
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Department of Molecular, Cellular, and Developmental Biology, University of California, Los Angeles, California, USA
| | - Weiguang Wang
- Department of Orthopaedic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Charles E McKenna
- Department of Chemistry, University of Southern California, Los Angeles, California, USA
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, University of California, Los Angeles, California, USA
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6
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Ciobanu GA, Mogoantă L, Popescu SM, Ionescu M, Munteanu CM, Staicu IE, Mercuț R, Georgescu CC, Scrieciu M, Vlad D, Camen A. Correlations between Immune Response and Etiopathogenic Factors of Medication-Related Osteonecrosis of the Jaw in Cancer Patients Treated with Zoledronic Acid. Int J Mol Sci 2023; 24:14345. [PMID: 37762651 PMCID: PMC10532296 DOI: 10.3390/ijms241814345] [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: 08/27/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Impairment of the immune response in MRONJ (medication-related osteonecrosis of the jaws) is one of the still unclear etiopathogenic mechanisms of this condition encountered in cancer patients treated with bisphosphonates, with negative effects on the patient's quality of life. The aim of the present study was to correlate the immune response with etiopathogenic factors via immunohistochemical evaluation of the maxillary tissues in zoledronic acid osteonecrosis. The retrospective study included a group of 51 patients with various types of cancers, diagnosed with stage 2 or 3 MRONJ at zoledronic acid and treated surgically. Immunohistochemical expressions of αSMA, CD3, CD4, CD8, CD20, CD79α, CD68, CD204, and tryptase were evaluated. Immunohistochemical markers expressions were statistically analyzed according to the duration of the treatment, the trigger factor, the location of the MRONJ, and the healing status. Analysis of the immune response included T lymphocytes, B lymphocytes, plasma cells, macrophages, and mast cells. The duration of treatment significantly influenced the immunohistochemical expression of most markers (p < 0.05). For an increasing trend in treatment duration, a decreasing trend in marker score was observed, suggesting an inverse correlation. The expression of the markers was different depending on the trigger factor, on MRONJ localization (maxilla/mandible), and the healing status, being more intense in patients cured per primam compared to those who had relapses. The patient's immune response was negatively influenced by the duration of the treatment, the trigger factor, the location of the lesion in the mandible, and the recurrence of MRONJ.
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Affiliation(s)
- George Adrian Ciobanu
- Department of Oral Rehabilitation, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Department of Oral and Maxillofacial Surgery, Dental Medicine Faculty, Ovidius University of Constanța, 900470 Constanța, Romania
| | - Laurențiu Mogoantă
- Department of Histology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Sanda Mihaela Popescu
- Department of Oral Rehabilitation, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Mihaela Ionescu
- Department of Medical Informatics and Biostatistics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Cristina Maria Munteanu
- Department of Oral and Maxillofacial Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ionela Elisabeta Staicu
- Department of Orthodontics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Răzvan Mercuț
- Department of Plastic Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | | | - Monica Scrieciu
- Department of Prosthetic Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Daniel Vlad
- Department of Oral and Maxillofacial Surgery, Dental Medicine Faculty, Ovidius University of Constanța, 900470 Constanța, Romania
| | - Adrian Camen
- Department of Oral and Maxillofacial Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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7
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Kondo T, Gleason A, Okawa H, Hokugo A, Nishimura I. Mouse gingival single-cell transcriptomic atlas: An activated fibroblast subpopulation guides oral barrier immunity in periodontitis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.13.536751. [PMID: 37546811 PMCID: PMC10401928 DOI: 10.1101/2023.04.13.536751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Periodontitis, one of the most common non-communicable diseases, is characterized by chronic oral inflammation and uncontrolled tooth supporting alveolar bone resorption. Its underlying mechanism to initiate aberrant oral barrier immunity has yet to be delineated. Here, we report a unique fibroblast subpopulation activated to guide oral inflammation (AG fibroblasts) identified in a single-cell RNA sequencing gingival cell atlas constructed from the mouse periodontitis models. AG fibroblasts localized beneath the gingival epithelium and in the cervical periodontal ligament responded to the ligature placement and to the discrete application of Toll-like receptor stimulants to mouse maxillary tissue. The upregulated chemokines and ligands of AG fibroblasts linked to the putative receptors of neutrophils in the early stages of periodontitis. In the established chronic inflammation, neutrophils together with AG fibroblasts appeared to induce type 3 innate lymphoid cells (ILC3s) that were the primary source of interleukin-17 cytokines. The comparative analysis of Rag2-/- and Rag2γc-/- mice suggested that ILC3 contributed to the cervical alveolar bone resorption interfacing the gingival inflammation. We propose that AG fibroblasts function as a previously unrecognized surveillant to initiate gingival inflammation leading to periodontitis through the AG fibroblast-neutrophil-ILC3 axis.
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Affiliation(s)
- Takeru Kondo
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA 90095, USA
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan
| | - Annie Gleason
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA 90095, USA
- UCLA Bruin in Genomics Summer Program
| | - Hiroko Okawa
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA 90095, USA
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan
| | - Akishige Hokugo
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA 90095, USA
- Regenerative Bioengineering and Repair Laboratory, Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA 90095, USA
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8
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Zhao N, Li QX, Wang YF, Qiao Q, Huang HY, Guo CB, Guo YX. Anti-angiogenic drug aggravates the degree of anti-resorptive drug-based medication-related osteonecrosis of the jaw by impairing the proliferation and migration function of gingival fibroblasts. BMC Oral Health 2023; 23:330. [PMID: 37245004 DOI: 10.1186/s12903-023-03034-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/11/2023] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Long-term use of anti-resorptive or anti-angiogenic drugs in cancer patients with odontogenic infections may lead to medication-related osteonecrosis of the jaw (MRONJ). This study investigated whether anti-angiogenic agents aggravate MRONJ occurrence in anti-resorptive-treated patients. METHODS The clinical stage and jawbone exposure of MRONJ patients caused by different drug regimens were analyzed to ascertain the aggravation effect of anti-angiogenic drugs on anti-resorptive drug-based MRONJ. Next, a periodontitis mice model was established, and tooth extraction was performed after administering anti-resorptive and/or anti-angiogenic drugs; the imaging and histological change of the extraction socket were observed. Moreover, the cell function of gingival fibroblasts was analyzed after the treatment with anti-resorptive and/or anti-angiogenic drugs in order to evaluate their effect on the gingival tissue healing of the extraction socket. RESULTS Patients treated with anti-angiogenic and anti-resorptive drugs had an advanced clinical stage and a bigger proportion of necrotic jawbone exposure compared to patients treated with anti-resorptive drugs alone. In vivo study further indicated a greater loss of mucosa tissue coverage above the tooth extraction in mice treated with sunitinib (Suti) + zoledronate (Zole) group (7/10) vs. Zole group (3/10) and Suti group (1/10). Micro-computed tomography (CT) and histological data showed that the new bone formation in the extraction socket was lower in Suti + Zole and Zole groups vs. Suti and control groups. In vitro data showed that the anti-angiogenic drugs had a stronger inhibitory ability on the proliferation and migration function of gingival fibroblasts than anti-resorptive drugs, and the inhibitory effect was obviously enhanced after combining zoledronate and sunitinib. CONCLUSION Our findings provided support for a synergistic contribution of anti-angiogenic drugs to anti-resorptive drugs-based MRONJ. Importantly, the present study revealed that anti-angiogenic drugs alone do not induce severe MRONJ but aggravate the degree of MRONJ via the enhanced inhibitory function of gingival fibroblasts based on anti-resorptive drugs.
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Affiliation(s)
- Ning Zhao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Qing-Xiang Li
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Yi-Fei Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Qiao Qiao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Hong-Yuan Huang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Chuan-Bin Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China.
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China.
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China.
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China.
| | - Yu-Xing Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie Haidian District, Beijing, 100081, PR China.
- National Clinical Research Center for Oral Diseases, Beijing, 100081, PR China.
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China.
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China.
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9
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Zhang W, Liu Y, Luo Y, Shu X, Pu C, Zhang B, Feng P, Xiong A, Kong Q. New insights into the role of long non-coding RNAs in osteoporosis. Eur J Pharmacol 2023; 950:175753. [PMID: 37119958 DOI: 10.1016/j.ejphar.2023.175753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/12/2023] [Accepted: 04/26/2023] [Indexed: 05/01/2023]
Abstract
Osteoporosis is a common disease in elderly individuals, and osteoporosis can easily lead to bone and hip fractures that seriously endanger the health of elderly individuals. At present, the treatment of osteoporosis is mainly anti-osteoporosis drugs, but there are side effects associated with anti-osteoporosis drugs. Therefore, it is very important to develop early diagnostic indicators and new therapeutic drugs for the prevention and treatment of osteoporosis. Long noncoding RNAs (lncRNAs), noncoding RNAs longer than 200 nucleotides, can be used as diagnostic markers for osteoporosis, and lncRNAs play an important role in the progression of osteoporosis. Many studies have shown that lncRNAs can be the target of osteoporosis. Therefore, herein, the role of lncRNAs in osteoporosis is summarized, aiming to provide some information for the prevention and treatment of osteoporosis.
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Affiliation(s)
- Weifei Zhang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuheng Liu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yuanrui Luo
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xiang Shu
- Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region (Hospital.C.T.), Sichuan University, Chengdu, 610041, China
| | - Congmin Pu
- Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region (Hospital.C.T.), Sichuan University, Chengdu, 610041, China
| | - Bin Zhang
- Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region (Hospital.C.T.), Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Pin Feng
- Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region (Hospital.C.T.), Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ao Xiong
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
| | - Qingquan Kong
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region (Hospital.C.T.), Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Hart DA. Are secondary effects of bisphosphonates on the vascular system of bone contributing to increased risk for atypical femoral fractures in osteoporosis? Bioessays 2023; 45:e2200206. [PMID: 36807308 DOI: 10.1002/bies.202200206] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/22/2023]
Abstract
Osteoporosis (OP) is a bone disease which affects a number of post-menopausal females and puts many at risk for fractures. A large number of patients are taking bisphosphonates (BPs) to treat their OP and a rare complication is the development of atypical femoral fractures (AFF). No real explanations for the mechanisms underlying the basis for development of where AFF develop while on BPs has emerged. The present hypothesis will discuss the possibility that part of the risk for an AFF is a secondary effect of BPs on a subset of vascular cells in a genetically at-risk population, leading to localized deregulation of the endothelial cell (EC)-bone cell-matrix units in nutrient channels/canals of the femur and increased risk for AFF. This concept of targeting ECs is consistent with location of AFF in the femur, the bilateral risk for occurrence of AFF, and the requirement for long term exposure to the drugs.
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Affiliation(s)
- David A Hart
- Department of Surgery, Faculty of Kinesiology, McCaig Institute for Bone & Joint Health, University of Calgary, Calgary, Alberta, Canada
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