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Nilawati N, Widyastuti W, Rizka Y, Kurniawan H. Dental Implant Osseointegration Inhibition by Nicotine through Increasing nAChR, NFATc1 Expression, Osteoclast Numbers, and Decreasing Osteoblast Numbers. Eur J Dent 2023; 17:1189-1193. [PMID: 36574781 PMCID: PMC10756838 DOI: 10.1055/s-0042-1758794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE The success of dental implants is determined by the osteointegration process. Many studies state that smoking cigarettes can inhibit osseointegration, but the inhibition mechanism is still unclear.The aim of this study was to identify and analyze the effect of nicotine on the inhibition of dental implant osseointegration through the expression of nicotinic acetylcholine receptor (nAChR), nuclear factor of activated T cells cytoplasmic 1 (NFATc1), osteoclast, and osteoblast numbers. MATERIALS AND METHODS This study is an experimental study of 16 New Zealand rabbits, randomized across two groups. Group 1 (eight rabbits) was a control group, and group 2 (eight rabbits) was a treatment group. The treatment group was given 2.5 mg/kg body weight/day of nicotine by injection 1 week before placement of the implant until the end of research. Observations were made in the first and the eighth week by measuring the number of osteoblast and osteoclast by immunohistology test and the expression of nAChR and NFATc1 by immunohistochemistry test. STATISTICAL ANALYSIS Data was analyzed using a one-way analysis of variance and Student's t-test. A p-value of < 0.05 was considered statistically significant. RESULTS Significant differences were found between the control and treatment groups (p < 0.05). Results showed that nicotine increases the expression of nAChR and decreases the number of osteoblasts and the expression of BMP2 and osteocalcin. CONCLUSION Nicotine inhibits the osseointegration of dental implants by increasing nAChR, NFATc1, osteoclast numbers, and decreasing osteoblast numbers.
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Affiliation(s)
- Nina Nilawati
- Department of Periodontology, Faculty of Dentistry, Universitas Hang Tuah, Surabaya, Indonesia
- Department of Periodontology, Haji General Hospital, Surabaya, Indonesia
| | - Widyastuti Widyastuti
- Department of Periodontology, Faculty of Dentistry, Universitas Hang Tuah, Surabaya, Indonesia
| | - Yoifah Rizka
- Department of Periodontology, Faculty of Dentistry, Universitas Hang Tuah, Surabaya, Indonesia
| | - Hansen Kurniawan
- Department of Periodontology, Faculty of Dentistry, Universitas Hang Tuah, Surabaya, Indonesia
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Courties A, Petit J, Do A, Legris M, Kouki I, Pigenet A, Sacitharan PK, Ehkirch FP, Berenbaum F, Sellam J. Alpha-7 Nicotinic Receptor Dampens Murine Osteoblastic Response to Inflammation and Age-Related Osteoarthritis. Front Immunol 2022; 13:842538. [PMID: 35479080 PMCID: PMC9037377 DOI: 10.3389/fimmu.2022.842538] [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: 12/23/2021] [Accepted: 03/10/2022] [Indexed: 11/17/2022] Open
Abstract
Introduction Osteoarthritis (OA) is a whole-joint disease characterized by a low-grade inflammation that is involved in both cartilage degradation and subchondral bone remodeling. Since subchondral bone has a cholinergic innervation and that acetylcholine (Ach) might have an anti-inflammatory effect through the α7 nicotinic Ach receptor (α7nAchR), we aimed (i) to determine the expression of non-neuronal cholinergic system and nicotinic receptor subunits by murine and human osteoblasts, (ii) to address the role of α7nAchR in osteoblastic response to inflammation, and (iii) to study the role of α7nAchR in a spontaneous aging OA model. Methods Primary cultures of WT and α7nAchR knock-out mice (Chrna7-/-) murine osteoblasts and of subchondral bone human OA osteoblasts were performed. The expressions of the non-neuronal cholinergic system and of the nAchR subunits were assessed by PCR. In vitro, IL1β-stimulated WT, Chrna7-/-, and human osteoblasts were pretreated with nicotine. At 24 h, expressions of interleukin-6 (IL6) and metalloproteinase-3 and -13 (MMP), RANK-ligand (RANKL), and osteoprotegerin (OPG) were quantified by qPCR and ELISA. Spontaneous aging OA was evaluated and compared between male WT and Chrna7-/- mice of 9 and 12 months. Results Murine WT osteoblasts express the main components of the cholinergic system and α7 subunit composing α7nAchR. Nicotine partially prevented the IL1β-induced expression and production of IL6, MMP3, and RANKL in WT osteoblasts. The effect for IL6 and MMP was mediated by α7nAchR since nicotine had no effect on Chrna7-/- osteoblasts while the RANKL decrease persisted. Chrna7-/- mice displayed significantly higher cartilage lesions than their WT counterparts at 9 and 12 months, without difference in subchondral bone remodeling. Human OA osteoblasts also expressed the non-neuronal cholinergic system and α7 subunit as well as CHRFAM7A, the dominant negative duplicate of Chrna7. Nicotine pretreatment did not significantly reduce IL6 and MMP3 production in IL-1β-stimulated human osteoarthritic osteoblasts (n = 4), possibly due to CHRFAM7A. Conclusion Cholinergic system counteracts murine osteoblastic response to IL-1β through α7nAchR. Since α7nAchR deletion may limit cartilage degradation during murine age-related OA, enhancing cholinergic system could be a new therapeutic target in OA but may depend on CHRFAM7A expression.
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Affiliation(s)
- Alice Courties
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France.,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Juliette Petit
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France.,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Ariane Do
- Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Manon Legris
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Inès Kouki
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Audrey Pigenet
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Pradeep K Sacitharan
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France.,Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom.,Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, China
| | | | - Francis Berenbaum
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France.,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Jérémie Sellam
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France.,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
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Courties A, Petit J, Do A, Legris M, Kouki I, Pigenet A, Sacitharan PK, Ehkirch FP, Berenbaum F, Sellam J. Alpha-7 Nicotinic Receptor Dampens Murine Osteoblastic Response to Inflammation and Age-Related Osteoarthritis. Front Immunol 2022. [PMID: 35479080 DOI: 10.3389/fimmu.2021.761820/full] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023] Open
Abstract
INTRODUCTION Osteoarthritis (OA) is a whole-joint disease characterized by a low-grade inflammation that is involved in both cartilage degradation and subchondral bone remodeling. Since subchondral bone has a cholinergic innervation and that acetylcholine (Ach) might have an anti-inflammatory effect through the α7 nicotinic Ach receptor (α7nAchR), we aimed (i) to determine the expression of non-neuronal cholinergic system and nicotinic receptor subunits by murine and human osteoblasts, (ii) to address the role of α7nAchR in osteoblastic response to inflammation, and (iii) to study the role of α7nAchR in a spontaneous aging OA model. METHODS Primary cultures of WT and α7nAchR knock-out mice (Chrna7-/-) murine osteoblasts and of subchondral bone human OA osteoblasts were performed. The expressions of the non-neuronal cholinergic system and of the nAchR subunits were assessed by PCR. In vitro, IL1β-stimulated WT, Chrna7-/-, and human osteoblasts were pretreated with nicotine. At 24 h, expressions of interleukin-6 (IL6) and metalloproteinase-3 and -13 (MMP), RANK-ligand (RANKL), and osteoprotegerin (OPG) were quantified by qPCR and ELISA. Spontaneous aging OA was evaluated and compared between male WT and Chrna7-/- mice of 9 and 12 months. RESULTS Murine WT osteoblasts express the main components of the cholinergic system and α7 subunit composing α7nAchR. Nicotine partially prevented the IL1β-induced expression and production of IL6, MMP3, and RANKL in WT osteoblasts. The effect for IL6 and MMP was mediated by α7nAchR since nicotine had no effect on Chrna7-/- osteoblasts while the RANKL decrease persisted. Chrna7-/- mice displayed significantly higher cartilage lesions than their WT counterparts at 9 and 12 months, without difference in subchondral bone remodeling. Human OA osteoblasts also expressed the non-neuronal cholinergic system and α7 subunit as well as CHRFAM7A, the dominant negative duplicate of Chrna7. Nicotine pretreatment did not significantly reduce IL6 and MMP3 production in IL-1β-stimulated human osteoarthritic osteoblasts (n = 4), possibly due to CHRFAM7A. CONCLUSION Cholinergic system counteracts murine osteoblastic response to IL-1β through α7nAchR. Since α7nAchR deletion may limit cartilage degradation during murine age-related OA, enhancing cholinergic system could be a new therapeutic target in OA but may depend on CHRFAM7A expression.
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Affiliation(s)
- Alice Courties
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
- Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Juliette Petit
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
- Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Ariane Do
- Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Manon Legris
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Inès Kouki
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Audrey Pigenet
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Pradeep K Sacitharan
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
- Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, China
| | | | - Francis Berenbaum
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
- Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Jérémie Sellam
- Sorbonne Université, INSERM UMR 938, Centre de Recherche Saint-Antoine, Hôpital Saint-Antoine, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
- Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
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Hemm F, Fijak M, Belikan J, Kampschulte M, El Khassawna T, Pilatz A, Heiss C, Lips KS. Bone Status in a Mouse Model of Experimental Autoimmune-Orchitis. Int J Mol Sci 2021; 22:7858. [PMID: 34360623 PMCID: PMC8346031 DOI: 10.3390/ijms22157858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 11/17/2022] Open
Abstract
Investigations in male patients with fertility disorders revealed a greater risk of osteoporosis. The rodent model of experimental autoimmune-orchitis (EAO) was established to analyze the underlying mechanisms of male infertility and causes of reduced testosterone concentration. Hence, we investigated the impact of testicular dysfunction in EAO on bone status. Male mice were immunized with testicular homogenate in adjuvant to induce EAO (n = 5). Age-matched mice were treated with adjuvant alone (adjuvant, n = 6) or remained untreated (control, n = 7). Fifty days after the first immunization specimens were harvested. Real-time reverse transcription-PCR indicated decreased bone metabolism by alkaline phosphatase and Cathepsin K as well as remodeling of cell-contacts by Connexin-43. Micro computed tomography demonstrated a loss of bone mass and mineralization. These findings were supported by histomorphometric results. Additionally, biomechanical properties of femora in a three-point bending test were significantly altered. In summary, the present study illustrates the induction of osteoporosis in the investigated mouse model. However, results suggest that the major effects on bone status were mainly caused by the complete Freund's adjuvant rather than the autoimmune-orchitis itself. Therefore, the benefit of the EAO model to transfer laboratory findings regarding bone metabolism in context with orchitis into a clinical application is limited.
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Affiliation(s)
- Fabian Hemm
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital of Giessen, Rudolf-Buchheim-Str. 7, 35392 Giessen, Germany;
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Aulweg 128, 35392 Giessen, Germany;
| | - Monika Fijak
- Department of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Aulweg 123, 35385 Giessen, Germany;
| | - Jan Belikan
- Laboratory of Experimental Radiology, Justus-Liebig-University Giessen, Schubertstrasse 81, 35392 Giessen, Germany; (J.B.); (M.K.)
| | - Marian Kampschulte
- Laboratory of Experimental Radiology, Justus-Liebig-University Giessen, Schubertstrasse 81, 35392 Giessen, Germany; (J.B.); (M.K.)
| | - Thaqif El Khassawna
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Aulweg 128, 35392 Giessen, Germany;
| | - Adrian Pilatz
- Department of Urology, Pediatric Urology and Andrology, University Hospital of Giessen, Rudolf-Buchheim-Straße 7, 35392 Giessen, Germany;
| | - Christian Heiss
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital of Giessen, Rudolf-Buchheim-Str. 7, 35392 Giessen, Germany;
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Aulweg 128, 35392 Giessen, Germany;
| | - Katrin Susanne Lips
- Experimental Trauma Surgery, Justus-Liebig-University Giessen, Aulweg 128, 35392 Giessen, Germany;
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Soraya Z, Ghollasi M, Halabian R, Eftekhari E, Tabasi A, Salimi A. Donepezil hydrochloride as a novel inducer for osteogenic differentiation of mesenchymal stem cells on PLLA scaffolds in vitro. Biotechnol J 2021; 16:e2100112. [PMID: 34170068 DOI: 10.1002/biot.202100112] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/08/2021] [Accepted: 06/17/2021] [Indexed: 01/14/2023]
Abstract
Over the past decades, bone defects caused by illness or trauma have been the most common traumatic injuries in humans and treatment of orthopedic infections has always been a serious challenge to experts in the world. In this project, poly L-lactic acid (PLLA) nanofibrous scaffolds were synthesized as a nontoxic, eco-friendly, and cost-effective scaffold by the electrospinning technique. Then, the impact of PLLA on the cell proliferation and osteogenic differentiation of human mesenchymal stem cells (hMSCs) was assayed in the presence and absence of donepezil hydrochloride (DH) which was prescribed in patients with Alzheimer's disease. Also, hMSCs were seeded on PLLA scaffold in the presence (PLLA-DH) and absence of 1 μg mL-1 of DH under osteogenic induction media. Osteogenic differentiation of hMSCs was assessed by specific bone-related tests including alkaline phosphatase (ALP) activity, Alizarin red and von Kossa staining, calcium content assay. Also, Osteocalcin and osteopontin were evaluated as osteogenic proteins as well as ALP, osteonectin, osteocalcin, collagen type I (Col-I) and Runx2 as osteogenic genes via immunocytochemistry (ICC) and Real-time PCR analyses. The obtained data showed the higher ALP enzyme activity and biomineralization, more intensity during von Kossa staining as well as the increase in the expression rate of osteogenic related gene and protein markers in differentiated hMSCs on PLLA-DH. In conclusion, the present study revealed that the combination of PLLA scaffold with DH provides a scope to develop a suitable matrix in bone tissue engineering applications.
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Affiliation(s)
- Zahra Soraya
- Department of Molecular and Cellular Sciences, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Marzieh Ghollasi
- Department of Cell and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Raheleh Halabian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Elahe Eftekhari
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amin Tabasi
- Department of Cellular and Molecular biology, Faculty of Advanced Science and Technology, Tehran Medical Science Branch, Islamic Azad University, Tehran, Iran
| | - Ali Salimi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Ma Y, Elefteriou F. Brain-Derived Acetylcholine Maintains Peak Bone Mass in Adult Female Mice. J Bone Miner Res 2020; 35:1562-1571. [PMID: 32282950 PMCID: PMC8087457 DOI: 10.1002/jbmr.4024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/20/2020] [Accepted: 03/31/2020] [Indexed: 12/26/2022]
Abstract
Preclinical and clinical data support a role of the sympathetic nervous system in the regulation of bone remodeling, but the contribution of parasympathetic arm of the autonomic nervous system to bone homeostasis remains less studied. In this study, we sought to determine whether acetylcholine (ACh) contributes to the regulation of bone remodeling after peak bone mass acquisition. We show that reduced central ACh synthesis in mice heterozygous for the choline transporter (ChT) leads to a decrease in bone mass in young female mice, thus independently confirming the previously reported beneficial effect of ACh signaling on bone mass accrual. Increasing brain ACh levels through the use of the blood brain barrier (BBB)-permeable acetylcholinesterase inhibitor (AChEI) galantamine increased trabecular bone mass in adult female mice, whereas a peripheral increase in ACh levels induced by the BBB-impermeable AChEI pyridostigmine caused trabecular bone loss. AChEIs did not alter skeletal norepinephrine level, and induced an overall increase in osteoblast and osteoclast densities, two findings that do not support a reduction in sympathetic outflow as the mechanism involved in the pro-anabolic effect of galantamine on the skeleton. In addition, we did not detect changes in the commitment of skeletal progenitor cells to the osteoblast lineage in vivo in AChEI-treated mice, nor a direct impact of these drugs in vitro on the survival and differentiation of osteoblast and osteoclast progenitors. Last, ChT heterozygosity and galantamine treatment triggered bone changes in female mice only, thus revealing the existence of a gender-specific skeletal response to brain ACh level. In conclusion, this study supports the stimulatory effect of central ACh on bone mass accrual, shows that it also promotes peak bone mass maintenance in adult mice, and suggests that central ACh regulates bone mass via different mechanisms in growing versus sexually mature mice. © 2020 American Society for Bone and Mineral Research.
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Affiliation(s)
- Yun Ma
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Florent Elefteriou
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
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Courties A, Belle M, Senay S, Cambon-Binder A, Sautet A, Chédotal A, Berenbaum F, Sellam J. Clearing method for 3-dimensional immunofluorescence of osteoarthritic subchondral human bone reveals peripheral cholinergic nerves. Sci Rep 2020; 10:8852. [PMID: 32483280 PMCID: PMC7264130 DOI: 10.1038/s41598-020-65873-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 05/05/2020] [Indexed: 11/09/2022] Open
Abstract
The cholinergic system plays a major anti-inflammatory role in many diseases through acetylcholine (Ach) release after vagus nerve stimulation. Osteoarthritis (OA) is associated with local low-grade inflammation, but the regulatory mechanisms are unclear. Local Ach release could have anti-inflammatory activity since articular cells express Ach receptors involved in inflammatory responses. Using the 3DISCO clearing protocol that allows whole-sample 3-dimensional (3D) analysis, we cleared human OA cartilage-subchondral bone samples to search for cholinergic nerve fibres able to produce Ach locally. We analysed 3 plugs of knee cartilage and subchondral bone from 3 OA patients undergoing arthroplasty. We found no nerves in the superficial and intermediate articular cartilage layers, as evidenced by the lack of Peripherin staining (a peripheral nerves marker). Conversely, peripheral nerves were found in the deepest layer of cartilage and in subchondral bone. Some nerves in the subchondral bone samples were cholinergic because they coexpressed peripherin and choline acetyltransferase (ChAT), a specific marker of cholinergic nerves. However, no cholinergic nerves were found in the cartilage layers. It is therefore feasible to clear human bone to perform 3D immunofluorescence. Human OA subchondral bone is innervated by cholinergic fibres, which may regulate local inflammation through local Ach release.
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Affiliation(s)
- Alice Courties
- Sorbonne Université, Paris, France.,INSERM UMRS_938, CRSA, Paris, France.,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
| | - Morgane Belle
- Sorbonne Université, Paris, France.,INSERM, CNRS, Institut de la Vision, Paris, France
| | - Simge Senay
- Sorbonne Université, Paris, France.,INSERM UMRS_938, CRSA, Paris, France
| | - Adeline Cambon-Binder
- Sorbonne Université, Paris, France.,Department of Orthopedic Surgery, AP-HP, Saint-Antoine Hospital, Paris, France
| | - Alain Sautet
- Sorbonne Université, Paris, France.,Department of Orthopedic Surgery, AP-HP, Saint-Antoine Hospital, Paris, France
| | - Alain Chédotal
- Sorbonne Université, Paris, France.,INSERM, CNRS, Institut de la Vision, Paris, France
| | - Francis Berenbaum
- Sorbonne Université, Paris, France. .,INSERM UMRS_938, CRSA, Paris, France. .,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France.
| | - Jérémie Sellam
- Sorbonne Université, Paris, France.,INSERM UMRS_938, CRSA, Paris, France.,Department of Rheumatology, Assistance Publique - Hôpitaux de Paris (AP-HP), Saint-Antoine Hospital, Paris, France
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Courties A, Sellam J, Berenbaum F. Role of the autonomic nervous system in osteoarthritis. Best Pract Res Clin Rheumatol 2017; 31:661-675. [DOI: 10.1016/j.berh.2018.04.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/11/2018] [Indexed: 01/15/2023]
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Wang CJ, Wang G, Wang XY, Liu M, Chuai M, Lee KKH, He XS, Lu DX, Yang X. Imidacloprid Exposure Suppresses Neural Crest Cells Generation during Early Chick Embryo Development. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:4705-15. [PMID: 27195532 DOI: 10.1021/acs.jafc.6b01478] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Imidacloprid is a neonicotinoid pesticide that is widely used in the control pests found on crops and fleas on pets. However, it is still unclear whether imidacloprid exposure could affect early embryo development-despite some studies having been conducted on the gametes. In this study, we demonstrated that imidacloprid exposure could lead to abnormal craniofacial osteogenesis in the developing chick embryo. Cranial neural crest cells (NCCs) are the progenitor cells of the chick cranial skull. We found that the imidacloprid exposure retards the development of gastrulating chick embryos. HNK-1, PAX7, and Ap-2α immunohistological stainings indicated that cranial NCCs generation was inhibited after imidacloprid exposure. Double immunofluorescent staining (Ap-2α and PHIS3 or PAX7 and c-Caspase3) revealed that imidacloprid exposure inhibited both NCC proliferation and apoptosis. In addition, it inhibited NCCs production by repressing Msx1 and BMP4 expression in the developing neural tube and by altering expression of EMT-related adhesion molecules (Cad6B, E-Cadherin, and N-cadherin) in the developing neural crests. We also determined that imidacloprid exposure suppressed cranial NCCs migration and their ability to differentiate. In sum, we have provided experimental evidence that imidacloprid exposure during embryogenesis disrupts NCCs development, which in turn causes defective cranial bone development.
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Affiliation(s)
- Chao-Jie Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University , Guangzhou 510632, China
| | - Guang Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University , Guangzhou 510632, China
| | - Xiao-Yu Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University , Guangzhou 510632, China
| | - Meng Liu
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University , Guangzhou 510632, China
| | - Manli Chuai
- Division of Cell and Developmental Biology, University of Dundee , Dundee, DD1 5EH, U.K
| | - Kenneth Ka Ho Lee
- Key Laboratory for Regenerative Medicine of the Ministry of Education, School of Biomedical Sciences, Chinese University of Hong Kong , Shatin, Hong Kong
| | - Xiao-Song He
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences , Beijing 100012, China
| | - Da-Xiang Lu
- Division of Pathophysiology, Medical College, Jinan University , Guangzhou 510632, China
| | - Xuesong Yang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University , Guangzhou 510632, China
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Mandl P, Hayer S, Karonitsch T, Scholze P, Győri D, Sykoutri D, Blüml S, Mócsai A, Poór G, Huck S, Smolen JS, Redlich K. Nicotinic acetylcholine receptors modulate osteoclastogenesis. Arthritis Res Ther 2016; 18:63. [PMID: 26970742 PMCID: PMC4789270 DOI: 10.1186/s13075-016-0961-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 02/23/2016] [Indexed: 12/27/2022] Open
Abstract
Background Our aim was to investigate the role of nicotinic acetylcholine receptors (nAChRs) in in-vitro osteoclastogenesis and in in-vivo bone homeostasis. Methods The presence of nAChR subunits as well as the in-vitro effects of nAChR agonists were investigated by ex vivo osteoclastogenesis assays, real-time polymerase chain reaction, Western blot and flow cytometry in murine bone marrow-derived macrophages differentiated in the presence of recombinant receptor activator of nuclear factor kappa B ligand (RANKL) and macrophage colony-stimulating factor (M-CSF). The bone phenotype of mice lacking various nAChR subunits was investigated by peripheral quantitative computed tomography and histomorphometric analysis. Oscillations in the intracellular calcium concentration were detected by measuring the Fura-2 fluorescence intensity. Results We could demonstrate the presence of several nAChR subunits in bone marrow-derived macrophages stimulated with RANKL and M-CSF, and showed that they are capable of producing acetylcholine. nAChR ligands reduced the number of osteoclasts as well as the number of tartrate-resistant acidic phosphatase-positive mononuclear cells in a dose-dependent manner. In vitro RANKL-mediated osteoclastogenesis was reduced in mice lacking α7 homomeric nAChR or β2-containing heteromeric nAChRs, while bone histomorphometry revealed increased bone volume as well as impaired osteoclastogenesis in male mice lacking the α7 nAChR. nAChR ligands inhibited RANKL-induced calcium oscillation, a well-established phenomenon of osteoclastogenesis. This inhibitory effect on Ca2+ oscillation subsequently led to the inhibition of RANKL-induced NFATc1 and c-fos expression after long-term treatment with nicotine. Conclusions We have shown that the activity of nAChRs conveys a marked effect on osteoclastogenesis in mice. Agonists of these receptors inhibited calcium oscillations in osteoclasts and blocked the RANKL-induced activation of c-fos and NFATc1. RANKL-mediated in-vitro osteoclastogenesis was reduced in α7 knockout mice, which was paralleled by increased tibial bone volume in male mice in vivo. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-0961-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Peter Mandl
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria.
| | - Silvia Hayer
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Thomas Karonitsch
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Petra Scholze
- Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - David Győri
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Despoina Sykoutri
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Stephan Blüml
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Attila Mócsai
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Gyula Poór
- National Institute of Rheumatology and Physiotherapy, Budapest, Hungary
| | - Sigismund Huck
- Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Josef S Smolen
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Kurt Redlich
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
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Kauschke V, Kneffel M, Floel W, Hartmann S, Kampschulte M, Dürselen L, Ignatius A, Schnettler R, Heiss C, Lips KS. Bone status of acetylcholinesterase-knockout mice. Int Immunopharmacol 2015; 29:222-30. [PMID: 26250336 DOI: 10.1016/j.intimp.2015.07.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 07/27/2015] [Accepted: 07/30/2015] [Indexed: 12/19/2022]
Abstract
Acetylcholinesterase (AChE) hydrolyzes acetylcholine (ACh) to acetate and choline and thereby terminates nerve impulse transmission. ACh is also expressed in bone tissue and enhances here proliferation and differentiation of osteoblasts, which makes it interesting to investigate effects of AChE deficiency on bone. To our knowledge, this is the first study that analyzed bone of heterozygous acetylcholinesterase-knockout (AChE-KO) mice. Tibia, femur, thoracic and lumbar vertebrae of 16-week-old female heterozygous AChE-KO mice and their corresponding wildtypes (WT) were analyzed using real-time RT-PCR, dual-energy X-ray absorptiometry, biomechanics, micro-computed tomography, histology and histomorphometry. Our data revealed that heterozygous AChE-KO did not cause negative effects upon bone parameters analyzed. In contrast, the number of osteoclasts per perimeter was significantly reduced in lumbar vertebrae. In addition, we found a significant decrease in trabecular perimeter of lumbar vertebrae and cortical area fraction (Ct.Ar/Tt.Ar) in the mid-diaphysis of femurs of AChE-KO mice compared to their WT. Therefore, presumably a local homozygous knockout of AChE or AChE-inhibitor administration might be beneficial for bone formation due to ACh accumulation. However, many other bone parameters analyzed did not differ statistically significantly between AChE-KO and WT mice. That might be reasoned by the compensating effect of butyrylcholinesterase (BChE).
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Affiliation(s)
- Vivien Kauschke
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany.
| | - Mathias Kneffel
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany
| | - Wolfgang Floel
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany
| | - Sonja Hartmann
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany
| | - Marian Kampschulte
- Department of Radiology, University Hospital of Giessen-Marburg, Klinikstr. 33, 35392 Giessen, Germany
| | - Lutz Dürselen
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Medical Faculty, Helmholtzstr. 14, 89081 Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, University of Ulm, Medical Faculty, Helmholtzstr. 14, 89081 Ulm, Germany
| | - Reinhard Schnettler
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany; Department of Trauma Surgery, University Hospital of Giessen-Marburg, Rudolph-Buchheimstr. 7, 35392 Giessen, Germany
| | - Christian Heiss
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany; Department of Trauma Surgery, University Hospital of Giessen-Marburg, Rudolph-Buchheimstr. 7, 35392 Giessen, Germany
| | - Katrin Susanne Lips
- Laboratory of Experimental Trauma Surgery, Justus-Liebig-University Giessen, Schubertstr. 81, 35392 Giessen, Germany
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Bone status of adult female butyrylcholinesterase gene-deficient mice. Int Immunopharmacol 2015; 29:208-14. [PMID: 26138460 DOI: 10.1016/j.intimp.2015.06.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/11/2015] [Accepted: 06/23/2015] [Indexed: 11/20/2022]
Abstract
Butyrylcholinesterase (BChE) degrades acetylcholine in addition to acetylcholinesterase (AChE) which is involved in embryonic development of limbs. Since BChE is expressed by osteoblast-like cells we asked whether it is functional in adult bone remodeling. We addressed this issue by analyzing BChE gene-deficient mice (BChE-KO). Bones were extracted from 16-week old female BChE-KO and corresponding wild type mice (WT). Femoral bones were used for biomechanical testing and μCT evaluation of cancellous and cortical bone. Also vertebrae Th12 and L1 were investigated with μCT while L3 was used for tartrate-resistant acidic phosphatase (TRAP) histomorphometry and Th10 for gene expression analysis by means of real-time RT-PCR. BChE-KO did not reveal significant differences in biomechanical bone strength and bone mineral density determined by μCT. Microarchitecture of cancellous and cortical bone showed an increase in μCT parameters like trabecular thickness, trabecular separation, and relative cortical bone area of femoral BChE-KO bone compared to WT. In vertebrae no changes of microstructure and mRNA expression were detected. However, osteoclast histomorphometry with TRAP stained sections demonstrated a significant increase in relative osteoclast number. In conclusion, in adult murine bone the role of BChE is limited to bone specific changes in microarchitecture and to an increase in relative number of bone resorbing osteoclasts whereas the main collagen resorbing enzyme Cathepsin-K (CtsK) was stably expressed. Besides, AChE might be able to compensate the lack of BChE. Thus, further analyses using bone tissue specific AChE BChE cre-lox double knockout mice would be helpful.
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Lips KS, Kneffel M, Willscheid F, Mathies FM, Kampschulte M, Hartmann S, Panzer I, Dürselen L, Heiss C, Kauschke V. Altered ultrastructure, density and cathepsin K expression in bone of female muscarinic acetylcholine receptor M3 knockout mice. Int Immunopharmacol 2015; 29:201-7. [PMID: 26002583 DOI: 10.1016/j.intimp.2015.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 05/04/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
High frequency of osteoporosis is found in postmenopausal women where several molecular components were identified to be involved in bone loss that subsequently leads to an increased fracture risk. Bone loss has already been determined in male mice with gene deficiency of muscarinic acetylcholine receptor M3 (M3R-KO). Here we asked whether bone properties of female 16-week old M3R-KO present similarities to osteoporotic bone loss by means of biomechanical, radiological, electron microscopic, cell- and molecular biological methods. Reduced biomechanical strength of M3R-KO correlated with cortical thickness and decreased bone mineral density (BMD). Femur and vertebrae of M3R-KO demonstrated a declined trabecular bone volume, surface, and a higher trabecular pattern factor and structure model index (SMI) compared to wild type (WT) mice. In M3R-KO, the number of osteoclasts as well as the cathepsin K mRNA expression was increased. Osteoclasts of M3R-KO showed an estimated increase in cytoplasmic vesicles. Further, histomorphometrical analysis revealed up-regulation of alkaline phosphatase. Osteoblasts and osteocytes showed a swollen cytoplasm with an estimated increase in the amount of rough endoplasmatic reticulum and in case of osteocytes a reduced pericellular space. Thus, current results on bone properties of 16-week old female M3R-KO are related to postmenopausal osteoporotic phenotype. Stimulation and up-regulation of muscarinic acetylcholine receptor subtype M3 expression in osteoblasts might be a possible new option for prevention and therapy of osteoporotic fractures. Pharmacological interventions and the risk of side effects have to be determined in upcoming studies.
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Affiliation(s)
- Katrin Susanne Lips
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany.
| | - Mathias Kneffel
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany
| | - Fee Willscheid
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany
| | - Frank Martin Mathies
- Department of Urology, University of Lübeck Medical School, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - Marian Kampschulte
- Department of Diagnostic and Interventional Radiology, University Hospital of Giessen-Marburg, Campus Giessen, Klinikstrasse 33, 35392 Giessen, Germany; Laboratory for Experimental Radiology, Justus-Liebig University Giessen, Schubertstr. 81, 35392 Giessen, Germany
| | - Sonja Hartmann
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany
| | - Imke Panzer
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany
| | - Lutz Dürselen
- Institute of Orthopaedic Research and Biomechanics, Center of Musculoskeletal Research University of Ulm, Ulm, Germany
| | - Christian Heiss
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany; Department of Trauma Surgery Giessen, University Hospital of Giessen-Marburg, Campus Giessen, Rudolf-Buchheim-Str. 7, 35392 Giessen, Germany
| | - Vivien Kauschke
- Laboratory for Experimental Trauma Surgery, Justus-Liebig University Giessen, Kerkraderstr. 9, 35394 Giessen, Germany
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