1
|
Hsieh MK, Wang CY, Kao FC, Su HT, Chen MF, Tsai TT, Lai PL. Local application of zoledronate inhibits early bone resorption and promotes bone formation. JBMR Plus 2024; 8:ziae031. [PMID: 38606146 PMCID: PMC11008729 DOI: 10.1093/jbmrpl/ziae031] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 02/14/2024] [Accepted: 03/03/2024] [Indexed: 04/13/2024] Open
Abstract
Nonunion resulting from early bone resorption is common after bone transplantation surgery. In these patients, instability or osteoporosis causes hyperactive catabolism relative to anabolism, leading to graft resorption instead of fusion. Systemic zoledronate administration inhibits osteoclastogenesis and is widely used to prevent osteoporosis; however, evidence on local zoledronate application is controversial due to osteoblast cytotoxicity, uncontrolled dosing regimens, and local release methods. We investigated the effects of zolendronate on osteoclastogenesis and osteogenesis and explored the corresponding signaling pathways. In vitro cytotoxicity and differentiation of MC3T3E1 cells, rat bone marrow stromal cells (BMSCs) and preosteoclasts (RAW264.7 cells) were evaluated with different zolendronate concentrations. In vivo bone regeneration ability was tested by transplanting different concentrations of zolendronate with β-tricalcium phosphate (TCP) bone substitute into rat femoral critical-sized bone defects. In vitro, zolendronate concentrations below 2.5 × 10-7 M did not compromise viability in the three cell lines and did not promote osteogenic differentiation in MC3T3E1 cells and BMSCs. In RAW264.7 cells, zoledronate inhibited extracellular regulated protein kinases and c-Jun n-terminal kinase signaling, downregulating c-Fos and NFATc1 expression, with reduced expression of fusion-related dendritic cell‑specific transmembrane protein and osteoclast-specific Ctsk and tartrate-resistant acid phosphatase (. In vivo, histological staining revealed increased osteoid formation and neovascularization and reduced fibrotic tissue with 500 μM and 2000 μM zolendronate. More osteoclasts were found in the normal saline group after 6 weeks, and sequential osteoclast formation occurred after zoledronate treatment, indicating inhibition of bone resorption during early callus formation without inhibition of late-stage bone remodeling. In vivo, soaking β-TCP artificial bone with 500 μM or 2000 μM zoledronate is a promising approach for bone regeneration, with potential applications in bone transplantation.
Collapse
Affiliation(s)
- Ming-Kai Hsieh
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Linkou, Taiwan and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Chi-Yun Wang
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices, Ming Chi University of Technology, Taishan Dist, New Taipei City 243303, Taiwan
| | - Fu-Cheng Kao
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Linkou, Taiwan and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Hui-Ting Su
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Linkou, Taiwan and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Mei-Feng Chen
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Linkou, Taiwan and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Tsung-Ting Tsai
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Linkou, Taiwan and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Po-Liang Lai
- Department of Orthopaedic Surgery, Spine Section, Chang Gung Memorial Hospital, Linkou, Taiwan and College of Medicine, Chang Gung University, Taoyuan 33305, Taiwan
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| |
Collapse
|
2
|
Meng XJ, Wang LQ, Ma BG, Wei XH, Zhou Y, Sun ZX, Li YY. Screening, identification and evaluation of an acidophilic strain of Bacillus velezensis B4-7 for the biocontrol of tobacco bacterial wilt. FRONTIERS IN PLANT SCIENCE 2024; 15:1360173. [PMID: 38751839 PMCID: PMC11094357 DOI: 10.3389/fpls.2024.1360173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 04/15/2024] [Indexed: 05/18/2024]
Abstract
Tobacco (Nicotiana tabacum L.) bacterial wilt, caused by Ralstonia solanacearum, is indeed a highly destructive plant disease, leading to substantial damage in tobacco production. While biological control is considered an effective measure for managing bacterial wilt, related research in this area has been relatively limited compared to other control methods. In order to discover new potential antagonistic bacteria with high biocontrol efficacy against tobacco bacterial wilt, we conducted an analysis of the microbial composition differences between disease-suppressive and disease-conducive soils using Illumina sequencing. As a result, we successfully isolated six strains from the disease-suppressive soil that exhibited antibacterial activity against Ralstonia solanacearum. Among these strains, B4-7 showed the strongest antibacterial activity, even at acidic conditions with a pH of 4.0. Based on genome analysis using Average Nucleotide Identity (ANI), B4-7 was identified as Bacillus velezensis. In greenhouse and field trials, strain B4-7 significantly reduced the disease index of tobacco bacterial wilt, with control efficiencies reaching 74.03% and 46.88% respectively. Additionally, B4-7 exhibited plant-promoting abilities that led to a 35.27% increase in tobacco production in field conditions. Quantitative real-time (qPCR) analysis demonstrated that strain B4-7 effectively reduced the abundance of R. solanacearum in the rhizosphere. Genome sequencing and Liquid Chromatography-Mass Spectrometry (LC-MS) analysis revealed that strain B4-7 potentially produces various lipopeptide metabolites, such as microlactin, bacillaene, difficidin, bacilysin, and surfactin. Furthermore, B4-7 influenced the structure of the rhizosphere soil microbial community, increasing bacterial abundance and fungal diversity, while also promoting the growth of different beneficial microorganisms. In addition, B4-7 enhanced tobacco's resistance to R. solanacearum by increasing the activities of defense enzymes, including superoxide dismutase (SOD), phenylalanine ammonia-lyase (PAL), peroxidase (POD), catalase (CAT), and polyphenol oxidase (PPO). Collectively, these findings suggest that B. velezensis B4-7 holds significant biocontrol potential and can be considered a promising candidate strain for eco-friendly management of tobacco bacterial wilt.
Collapse
Affiliation(s)
- Xiang-jia Meng
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Lan-qin Wang
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Bai-ge Ma
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Xi-hong Wei
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Yi Zhou
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
- Early Detection and Management of Agricultural and Forestry Pests, Jingzhou, Hubei, China
| | - Zheng-xiang Sun
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
- Early Detection and Management of Agricultural and Forestry Pests, Jingzhou, Hubei, China
| | - Yan-yan Li
- Tobacco Research Institute of Hubei Province, Wuhan, Hubei, China
| |
Collapse
|
3
|
Carletti A, Gavaia PJ, Cancela ML, Laizé V. Metabolic bone disorders and the promise of marine osteoactive compounds. Cell Mol Life Sci 2023; 81:11. [PMID: 38117357 PMCID: PMC10733242 DOI: 10.1007/s00018-023-05033-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: 06/20/2023] [Revised: 10/12/2023] [Accepted: 11/05/2023] [Indexed: 12/21/2023]
Abstract
Metabolic bone disorders and associated fragility fractures are major causes of disability and mortality worldwide and place an important financial burden on the global health systems. These disorders result from an unbalance between bone anabolic and resorptive processes and are characterized by different pathophysiological mechanisms. Drugs are available to treat bone metabolic pathologies, but they are either poorly effective or associated with undesired side effects that limit their use. The molecular mechanism underlying the most common metabolic bone disorders, and the availability, efficacy, and limitations of therapeutic options currently available are discussed here. A source for the unmet need of novel drugs to treat metabolic bone disorders is marine organisms, which produce natural osteoactive compounds of high pharmaceutical potential. In this review, we have inventoried the marine osteoactive compounds (MOCs) currently identified and spotted the groups of marine organisms with potential for MOC production. Finally, we briefly examine the availability of in vivo screening and validation tools for the study of MOCs.
Collapse
Affiliation(s)
- Alessio Carletti
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
- Faculty of Medicine and Biomedical Sciences (FMCB), University of Algarve, Faro, Portugal
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Paulo Jorge Gavaia
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
- Faculty of Medicine and Biomedical Sciences (FMCB), University of Algarve, Faro, Portugal
- Associação Oceano Verde (GreenCoLab), Faro, Portugal
| | - Maria Leonor Cancela
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
- Faculty of Medicine and Biomedical Sciences (FMCB), University of Algarve, Faro, Portugal
- Algarve Biomedical Center (ABC), University of Algarve, Faro, Portugal
| | - Vincent Laizé
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal.
- Collaborative Laboratory for Sustainable and Smart Aquaculture (S2AQUAcoLAB), Olhão, Portugal.
| |
Collapse
|
4
|
Qin X, Wei Q, An R, Yang Y, Cai M, Han X, Mao H, Gao X. Regulation of bone and fat balance by Fructus Ligustri Lucidi in ovariectomized mice. PHARMACEUTICAL BIOLOGY 2023; 61:391-403. [PMID: 36740874 PMCID: PMC9904306 DOI: 10.1080/13880209.2023.2168019] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 12/03/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
CONTEXT Fructus Ligustri Lucidi (FLL), a commonly used herb of traditional Chinese medicine (TCM), is the fruit of Ligustrum lucidum Ait. (Oleaceae). The ethanol extract of FLL is a potential candidate for preventing and treating postmenopausal osteoporosis (PMOP) by nourishing the liver and kidneys. OBJECTIVE This study determines whether an ethanol extract of FLL has anti-osteoporotic effects in ovariectomized (OVX) mice and explores the underlying mechanism. MATERIALS AND METHODS The OVX model of eight-week-old C57BL/6J female mice was taken, and ovariectomy was used as PMOP. Mice were divided into five groups: sham-operated group (n = 10), OVX group (n = 10), OVX + E2 group (n = 10; 0.039 mg/kg), OVX + FLL group (n = 10; 2 g/kg) and OVX + FLL group (n = 10; 4 g/kg). Mice were treated by gavage with FLL or CMCNa once daily for 8 weeks. We harvested uteri, femur, and tibias from mice; bone mineral density (BMD) and bone microstructure were obtained by X-ray absorptiometry and micro-CT. Furthermore, the effect of FLL on the balance of osteoblast and adipocyte differentiation was investigated using bone marrow mesenchymal stem cells (BMMSCs). RESULTS The results indicated that FLL did not affect OVX-induced estradiol reduction. Compared with OVX mice, FLL significantly increased BMD (63.54 vs. 61.96), Conn. D (86.46 vs. 57.00), and left tibial strength (13.91 vs. 11.27), decreased Tb. Sp (0.38 vs. 0.44) and body fat content (4.19% vs. 11.24%). FLL decreased osteoclast activity and enhanced RUNX2 expression; inhibited perilipin peroxisome proliferator-activated receptor gamma (PPARγ) expression and adipocyte differentiation from BMMSCs. CONCLUSIONS FLL prevented additional bone loss and improved bone microstructure in OVX mice by modulating bone and fat balance, suggesting that FLL might be a therapeutic agent for PMOP.
Collapse
Affiliation(s)
- Xiaoyan Qin
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qiu Wei
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ran An
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yun Yang
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Mingqi Cai
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaoling Han
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Haoping Mao
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiumei Gao
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| |
Collapse
|
5
|
Okagu IU, Ezeorba TPC, Aguchem RN, Ohanenye IC, Aham EC, Okafor SN, Bollati C, Lammi C. A Review on the Molecular Mechanisms of Action of Natural Products in Preventing Bone Diseases. Int J Mol Sci 2022; 23:ijms23158468. [PMID: 35955603 PMCID: PMC9368769 DOI: 10.3390/ijms23158468] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 12/10/2022] Open
Abstract
The drugs used for treating bone diseases (BDs), at present, elicit hazardous side effects that include certain types of cancers and strokes, hence the ongoing quest for the discovery of alternatives with little or no side effects. Natural products (NPs), mainly of plant origin, have shown compelling promise in the treatments of BDs, with little or no side effects. However, the paucity in knowledge of the mechanisms behind their activities on bone remodeling has remained a hindrance to NPs’ adoption. This review discusses the pathological development of some BDs, the NP-targeted components, and the actions exerted on bone remodeling signaling pathways (e.g., Receptor Activator of Nuclear Factor κ B-ligand (RANKL)/monocyte/macrophage colony-stimulating factor (M-CSF)/osteoprotegerin (OPG), mitogen-activated protein kinase (MAPK)s/c-Jun N-terminal kinase (JNK)/nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), Kelch-like ECH-associated protein 1 (Keap-1)/nuclear factor erythroid 2–related factor 2 (Nrf2)/Heme Oxygenase-1 (HO-1), Bone Morphogenetic Protein 2 (BMP2)-Wnt/β-catenin, PhosphatidylInositol 3-Kinase (PI3K)/protein kinase B (Akt)/Glycogen Synthase Kinase 3 Beta (GSK3β), and other signaling pathways). Although majority of the studies on the osteoprotective properties of NPs against BDs were conducted ex vivo and mostly on animals, the use of NPs for treating human BDs and the prospects for future development remain promising.
Collapse
Affiliation(s)
- Innocent U. Okagu
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
| | - Timothy P. C. Ezeorba
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
| | - Rita N. Aguchem
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
| | - Ikenna C. Ohanenye
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1H 8M5, Canada;
| | - Emmanuel C. Aham
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (I.U.O.); (T.P.C.E.); (R.N.A.); (E.C.A.)
- Natural Science Unit, School of General Studies, University of Nigeria, Nsukka 410001, Nigeria
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sunday N. Okafor
- Department of Pharmaceutical and Medicinal Chemistry, University of Nigeria, Nsukka 410001, Nigeria;
| | - Carlotta Bollati
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy;
| | - Carmen Lammi
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy;
- Correspondence: ; Tel.: +39-02-5031-9372
| |
Collapse
|
6
|
Gan Y, Bai M, Lin X, Liu K, Huang B, Jiang X, Liu Y, Gao C. Improvement of macrolactins production by the genetic adaptation of Bacillus siamensis A72 to saline stress via adaptive laboratory evolution. Microb Cell Fact 2022; 21:147. [PMID: 35854349 PMCID: PMC9294813 DOI: 10.1186/s12934-022-01871-9] [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: 05/01/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Macrolactins, a type of macrolide antibiotic, are toxic to the producer strains. As such, its level is usually maintained below the lethal concentration during the fermentation process. To improve the production of macrolactins, we applied adaptive laboratory evolution technology to engineer a saline-resistant mutant strain. The hypothesis that strains with saline resistance show improved macrolactins production was investigated. RESULTS Using saline stress as a selective pressure, we engineered a mutant strain with saline resistance coupled with enhanced macrolactins production within 60 days using a self-made device. As compared with the parental strain, the evolved strain produced macrolactins with 11.93% improvement in non-saline stress fermentation medium containing 50 g/L glucose, when the glucose concentration increased to 70 g/L, the evolved strain produced macrolactins with 71.04% improvement. RNA sequencing and metabolomics results revealed that amino acid metabolism was involved in the production of macrolactins in the evolved strain. Furthermore, genome sequencing of the evolved strain revealed a candidate mutation, hisDD41Y, that was causal for the improved MLNs production, it was 3.42 times higher than the control in the overexpression hisDD41Y strain. Results revealed that saline resistance protected the producer strain from feedback inhibition of end-product (macrolide antibiotic), resulting in enhanced MLNs production. CONCLUSIONS In the present work, we successfully engineered a mutant strain with enhanced macrolactins production by adaptive laboratory evolution using saline stress as a selective pressure. Based on physiological, transcriptomic and genetic analysis, amino acid metabolism was found to benefit macrolactins production improvement. Our strategy might be applicable to improve the production of other kinds of macrolide antibiotics and other toxic compounds. The identification of the hisD mutation will allow for the deduction of metabolic engineering strategies in future research.
Collapse
Affiliation(s)
- Yuman Gan
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China.
| | - Meng Bai
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Xiao Lin
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Kai Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Bingyao Huang
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Xiaodong Jiang
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Yonghong Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China.
| | - Chenghai Gao
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China.
| |
Collapse
|
7
|
Sui Y, Yusufu A, Nian K, Li X, Shi W, Cheng B, Shen B. Bone Regeneration in Osteoporosis via Carbon Nanotube-Based Bone Morphogenetic Protein-2. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We constructed a bone morphogenetic protein 2 (BMP-2)@Carbon nanotube (CNT) delivery system to explore the feasibility of a nanodrug delivery system in the treatment of osteoporosis (OP). Osteoblasts were cultured and OP mouse models were constructed to evaluate the osteogenesis of
nano-BMP-2 in OP therapy. In physicochemical property tests, we found that BMP-2 was effectively loaded into CNT to form nanoparticles (NPs) with a particle size of 100 nm. Additionally, we found that nano-BMP-2 had good stability and could effectively prolong BMP-2 release time. In cellular
experiments, we found that nano-BMP-2 could penetrate osteoblasts more effectively than BMP-2 alone, and with the increase of BMP-2 loading, the amount of BMP-2 penetrating osteoblasts increased with an optimal loading of 100 μg. We determined that nano-BMP-2 could increase proliferation
activity of osteoblasts to better promote OP repair. In our vivo experiments, we found that nano-BMP-2 was effectively excreted through the kidney and mainly distributed in bone tissue. Moreover, CNT effectively prolonged the half-life of BMP-2 and was safe to introduce through intramuscular
injection and did not cause obvious inflammatory reactions. Following treatment, nano-BMP-2 increased body weight, femur weight, and femoral head diameter in OP mouse models. Furthermore, bone trabecular was arranged in a close and orderly fashion and was uniform in thickness in OP mice treated
with nano-BMP-2. OP mice had improved bone mineral density, trabecular thickness, trabecular number, and cortical bone thickness in their metaphyseal regions, implying nano-BMP-2 treatment led to improved OP symptoms. Therefore, BMP-2@CNT may be a beneficial choice for treatment of OP.
Collapse
Affiliation(s)
- Yi Sui
- Department of Orthopaedics, Chinese PLA 955th Hospital, Changdu, 854000, Tibet, PR China
| | - Aierpati Yusufu
- Department of Orthopaedics, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, Xinjiang, PR China
| | - Kaiwei Nian
- Department of Orthopaedics, Chinese PLA 955th Hospital, Changdu, 854000, Tibet, PR China
| | - Xin Li
- Department of Orthopaedics, Chinese PLA 955th Hospital, Changdu, 854000, Tibet, PR China
| | - Wenhua Shi
- Department of Orthopaedics, Chinese PLA 955th Hospital, Changdu, 854000, Tibet, PR China
| | - Bo Cheng
- Department of Orthopaedics, Chinese PLA 955th Hospital, Changdu, 854000, Tibet, PR China
| | - Bin Shen
- Department of Orthopaedics, Chinese PLA 955th Hospital, Changdu, 854000, Tibet, PR China
| |
Collapse
|
8
|
Marine natural products that inhibit osteoclastogenesis and promote osteoblast differentiation. J Nat Med 2022; 76:575-583. [PMID: 35397769 PMCID: PMC9165232 DOI: 10.1007/s11418-022-01622-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/15/2022] [Indexed: 10/25/2022]
Abstract
Osteoporosis is a disease that affects the quality of life of elderly people. The balance between bone formation mediated by osteoblasts and bone resorption by osteoclasts is important to maintain the normal bone condition. Therefore, the promotion of osteoblast differentiation and the suppression of osteoclastogenesis are effective strategies for osteoporosis treatment. Marine organisms are a promising source of biologically active and structurally diverse secondary metabolites, and have been providing drug leads for the treatment of numerous diseases. We describe the marine-derived secondary metabolites that can inhibit receptor activator of nuclear factor-κB ligand (RANKL)-induced osteoclastogenesis and promote osteoblast differentiation.
Collapse
|
9
|
Su XD, Yang SY, Shrestha SK, Soh Y. Aster saponin A 2 inhibits osteoclastogenesis through mitogen-activated protein kinase-c-Fos-NFATc1 signaling pathway. J Vet Sci 2022; 23:e47. [PMID: 35698806 PMCID: PMC9346523 DOI: 10.4142/jvs.21246] [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: 09/23/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 11/20/2022] Open
Abstract
Background In lipopolysaccharide-induced RAW264.7 cells, Aster tataricus (AT) inhibits the nuclear factor kappa-light-chain-enhancer of activated B cells and MAPKs pathways and critical pathways of osteoclast development and bone resorption. Objectives This study examined how aster saponin A2 (AS-A2) isolated from AT affects the processes and function of osteoclastogenesis induced by receptor activator of nuclear factor kappa-B ligand (RANKL) in RAW264.7 cells and bone marrow macrophages (BMMs). Methods The cell viability, tartrate-resistant acid phosphatase staining, pit formation assay, polymerase chain reaction, and western blot were carried out to determine the effects of AS-A2 on osteoclastogenesis. Results In RAW264.7 and BMMs, AS-A2 decreased RANKL-initiated osteoclast differentiation in a concentration-dependent manner. In AS-A2-treated cells, the phosphorylation of ERK1/2, JNK, and p38 protein expression were reduced considerably compared to the control cells. In RAW264.7 cells, AS-A2 suppressed the RANKL-induced activation of osteoclast-related genes. During osteoclast differentiation, AS-A2 suppressed the transcriptional and translational expression of NFATc1 and c-Fos. AS-A2 inhibited osteoclast development, reducing the size of the bone resorption pit area. Conclusion AS-A2 isolated from AT appears to be a viable therapeutic therapy for osteolytic illnesses, such as osteoporosis, Paget’s disease, and osteogenesis imperfecta.
Collapse
Affiliation(s)
- Xiang-Dong Su
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Seo Y Yang
- Department of Pharmaceutical Engineering, Sangji University, Wonju 26339, Korea
| | - Saroj K Shrestha
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea
| | - Yunjo Soh
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Korea
- Department of Pharmacology, School of Pharmacy, Jeonbuk National University, Jeonju 54896, Korea
| |
Collapse
|
10
|
Liu Y, Fu B, Li X, Chen C, Li X, Xu L, Wang B. Bushen huoxue decoction inhibits RANKL-stimulated osteoclastogenesis and glucocorticoid-induced bone loss by modulating the NF-κB, ERK, and JNK signaling pathways. Front Pharmacol 2022; 13:1007839. [PMID: 36467086 PMCID: PMC9716084 DOI: 10.3389/fphar.2022.1007839] [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: 07/31/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022] Open
Abstract
Glucocorticoid-induced osteoporosis (GIOP) is the most common form of secondary osteoporosis, which is caused by a disorder in bone metabolism due to excessive activation of osteoclasts. Bushen Huoxue decoction (BHD) is an herbal formula with multiple pharmacological effects, including anti-inflammatory, antioxidant activity and stem cell migration promotion. However, the effect of BHD on osteoclastogenesis has not been reported. In this study, we aimed to elucidate the effect of BHD on RANKL-stimulated osteoclastogenesis and explored its underlying mechanisms of action in vitro. Our results show that BHD had no effect on BMMs and RAW264.7 cells viability, but inhibited RANKL-induced osteoclast formation in vitro. Furthermore, BHD attenuated RANKL-induced NF-κB, ERK, and JNK signaling. The attenuation of NF-κB, ERK, and JNK activation were enough to impede downstream expression of c-fos and NFATc1 and related specific genes. Meanwhile, we investigated the therapeutic effect of BHD on glucocorticoid-induced osteoporosis (GIOP) mice. The result indicated that BHD prevents glucocorticoid-induced osteoporosis and preserves bone volume by repressing osteoclast activity. Collectively, BHD shows significant osteoclast inhibition and holds great promise in the treatment of osteoporosis.
Collapse
Affiliation(s)
- Yamei Liu
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Binlan Fu
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, China.,Laboratory of Orthopedics and Traumatology, Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoman Li
- School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, China.,Laboratory of Orthopedics and Traumatology, Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chen Chen
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xican Li
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liangliang Xu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bin Wang
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| |
Collapse
|
11
|
Park YR, Su XD, Shrestha SK, Yang SY, Soh Y. 2E-Decene-4,6-diyn-1-ol-acetate inhibits osteoclastogenesis through mitogen-activated protein kinase-c-Fos-NFATc1 signaling pathways. Clin Exp Pharmacol Physiol 2021; 49:341-349. [PMID: 34729812 DOI: 10.1111/1440-1681.13609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 10/14/2021] [Accepted: 10/29/2021] [Indexed: 11/27/2022]
Abstract
An imbalance of osteoclasts and osteoblasts can result in a variety of bone-related diseases, including osteoporosis. Thus, decreasing the activity of osteoclastic bone resorption is the main therapeutic method for osteoporosis. 2E-Decene-4, 6-diyn-1-ol-acetate (DDA) is a natural bioactive compound with anti-inflammatory and anti-cancer properties. However, its effects on osteoclastogenesis are unknown. Murine bone marrow-derived macrophages (BMMs) or RAW264.7 cells were treated with DDA, followed by evaluation of cell viability, RANKL-induced osteoclast differentiation, and pit formation assay. Effects of DDA on RANKL-induced phosphorylation of MAPKs were assayed by Western blot analysis. Expression of osteoclast-specific genes was examined with reverse transcription-PCR (RT-PCR) and Western blot analysis. In this study, DDA significantly inhibited RANKL-induced osteoclast differentiation in RAW264.7 cells as well as in BMMs without cytotoxicity. DDA also strongly blocked the resorbing capacity of BMM on calcium phosphate-coated plates. DDA inhibited RANKL-induced phosphorylation of ERK, JNK, and p38 MAPKs, as well as expression of c-Fos and NFATc1, which are essential transcription factors for osteoclastogenesis. In addition, DDA decreased expression levels of osteoclastogenesis-specific genes, including matrix metalloproteinase-9 (MMP-9), tartrate-resistant acid phosphatase (TRAP), and receptor activator of NF-κB (RANK) in RANKL-induced RAW264.7 cells. Collectively, these findings indicated that DDA attenuates RANKL-induced osteoclast formation by suppressing the MAPKs-c-Fos-NFATc1 signaling pathway and osteoclast-specific genes. These results indicate that DDA may be a potential candidate for bone diseases associated with abnormal osteoclast formation and function.
Collapse
Affiliation(s)
- Young Ran Park
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Xiang-Dong Su
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou, 510275, China
| | - Saroj Kuma Shrestha
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Seo Young Yang
- Department of Pharmaceutical Engineering, Sangji University, Wonju, 26339, Republic of Korea
| | - Yunjo Soh
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea.,Department of Pharmacology, School of Pharmacy, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| |
Collapse
|
12
|
Qu H, Zhang Y, He R, Lin N, Wang C. Anethole inhibits RANKL-induced osteoclastogenesis by downregulating ERK/AKT signaling and prevents ovariectomy-induced bone loss in vivo. Int Immunopharmacol 2021; 100:108113. [PMID: 34530203 DOI: 10.1016/j.intimp.2021.108113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 01/02/2023]
Abstract
Postmenopausal osteoporosis is a chronic population health hazard systemic metabolic disease caused by excessive bone resorption and reduced bone formation. The activity between osteoblast and osteoclast, with their mutual effects, influence the procedure of normal bone remodeling. Over-activated osteoclast differentiation and function play a crucial role in excessive bone resorption. Hence, therapy strategies targeting osteoclast activity may promote the bone mass preservation and delay the osteoporosis process. Natural compound (anethole) is emerging as potential therapeutics for various metabolic diseases. The purpose of this study is to investigate the potential effects of anethole on RANKL-induced osteoclast formation and function in vitro and in vivo. Here, in vitro TRAP staining assay was performed to investigate the inhibitory effect of anethole on osteoclast differentiation. Bone pits resorption assay revealed that osteoclast-mediated bone resorption was inhibited by anethole. At mRNA and protein levels, anethole significantly reduced the expression of osteoclast-specific genes expression in a concentration- or time-dependent manner, including NFATc1, MMP-9, DC-STAMP, c-F, TRAP, CTR, Cathepsin K, and V-ATPase d2. Furthermore, intracellular signaling transduction assay indicated that anethole inhibited osteoclast formation via blocking ERK and AKT signaling. GSK3β, the downstream signal of AKT, is simultaneously suppressed with anethole treatment. Based on ovariectomized (OVX) mice model, micro-CT and histological staining results suggested that anethole prevented estrogen deficiency-induced bone mass loss and increased osteoclast activity in vivo. In conclusion, our results show significant indications that anethole exhibits an osteoprotective effect and may be potential for the treatment of osteoporosis.
Collapse
Affiliation(s)
- Hao Qu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China.
| | - Yuankang Zhang
- Department of Orthopedics, XinJian District People's Hospital of Nanchang, Nanchang City, Jiangxi Province, China.
| | - Rongxin He
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China.
| | - Nong Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China.
| | - Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China; Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China.
| |
Collapse
|
13
|
Zhou X, Xu W, Wang Y, Zhang H, Zhang L, Li C, Yao S, Huang Z, Huang L, Luo D. LncRNA DNM3OS regulates GREM2 via miR-127-5p to suppress early chondrogenic differentiation of rat mesenchymal stem cells under hypoxic conditions. Cell Mol Biol Lett 2021; 26:22. [PMID: 34049478 PMCID: PMC8161583 DOI: 10.1186/s11658-021-00269-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 05/20/2021] [Indexed: 12/13/2022] Open
Abstract
Background Improved chondrogenic differentiation of mesenchymal stem cells (MSCs) by genetic regulation is a potential method for regenerating articular cartilage. MiR-127-5p has been reported to promote cartilage differentiation of rat bone marrow MSCs (rMSCs); however, the regulatory mechanisms underlying hypoxia-stimulated chondrogenic differentiation remain unknown. Methods rMSCs were induced to undergo chondrogenic differentiation under normoxic or hypoxic conditions. Expression of lncRNA DNM3OS, miR-127-5p, and GREM2 was detected by quantitative real-time PCR. Proteoglycans were detected by Alcian blue staining. Western blot assays were performed to examine the relative levels of GREM2 and chondrogenic differentiation related proteins. Luciferase reporter assays were performed to assess the association among DNM3OS, miR-127-5p, and GREM2. Results MiR-127-5p levels were upregulated, while DNM3OS and GREM2 levels were downregulated in rMSCs induced to undergo chondrogenic differentiation, and those changes were attenuated by hypoxic conditions (1% O2). Further in vitro experiments revealed that downregulation of miR-127-5p reduced the production of proteoglycans and expression of chondrogenic differentiation markers (COL1A1, COL2A1, SOX9, and ACAN) and osteo/chondrogenic markers (BMP-2, p-SMAD1/2). MiR-127-5p overexpression produced the opposite results in rMSCs induced to undergo chondrogenic differentiation under hypoxic conditions. GREM2 was found to be a direct target of miR-127-5p, which was suppressed in rMSCs undergoing chondrogenic differentiation. Moreover, DNM3OS could directly bind to miR-127-5p and inhibit chondrogenic differentiation of rMSCs via regulating GREM2. Conclusions Our study revealed a novel molecular pathway (DNM3OS/miR-127-5p/GREM2) that may be involved in hypoxic chondrogenic differentiation.
Collapse
Affiliation(s)
- Xiaozhong Zhou
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Wangyang Xu
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Yeyang Wang
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Hui Zhang
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Li Zhang
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Chao Li
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Shun Yao
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Zixiang Huang
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Lishan Huang
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China
| | - Dixin Luo
- The Spine Department, Orthopaedic Center, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, 510317, Guangdong, People's Republic of China.
| |
Collapse
|
14
|
Zhu T, Bao X, Chen M, Lin R, Zhuyan J, Zhen T, Xing K, Zhou W, Zhu S. Mechanisms and Future of Non-Small Cell Lung Cancer Metastasis. Front Oncol 2020; 10:585284. [PMID: 33262947 PMCID: PMC7686569 DOI: 10.3389/fonc.2020.585284] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022] Open
Abstract
Lung cancer, renowned for its fast progression and metastatic potency, is rising to become a leading cause of death globally. It has been long observed that lung cancer is particularly ept in spawning distant metastasis at its early stages, and it can readily colonize virtually any human organ. In recent years, cancer research has shed light on why lung cancer is endowed with its exceptional ability to metastasize. In this review, we will take a comprehensive look at the current research on lung cancer metastasis, including molecular pathways, anatomical features and genetic traits that make lung cancer intrinsically metastatic, as we go from lung cancer’s general metastatic potential to the particular metastasis mechanisms in multiple organs. We highly concerned about the advanced discovery and development of lung cancer metastasis, indicating the importance of lung cancer specific gene mutations, heterogeneity or biomarker discovery, and discussing potential opportunities and challenges. We will also introduce some current treatments that targets certain metastatic strategies of non-small cell lung cancer (NSCLC). Advances made in these regards could be critical to our current knowledge base of lung cancer metastasis.
Collapse
Affiliation(s)
- Tianhao Zhu
- School of Life Sciences, Fudan University, Shanghai, China.,Shanghai Starriver Bilingual School, Shanghai, China
| | | | - Mingyu Chen
- Department of Neurosurgery, Huashan Hospital, Shanghai, China
| | - Rui Lin
- Department of General Surgery, Tongji Hospital, School of Medicine, Tongji University Medical School, Shanghai, China
| | - Jianan Zhuyan
- Shanghai Starriver Bilingual School, Shanghai, China
| | | | | | - Wei Zhou
- Department of Emergency, Souths Campus, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Sibo Zhu
- School of Life Sciences, Fudan University, Shanghai, China
| |
Collapse
|
15
|
Zhang B, Zhang X, Xiao J, Zhou X, Chen Y, Gao C. Neuropeptide Y upregulates Runx2 and osterix and enhances osteogenesis in mouse MC3T3‑E1 cells via an autocrine mechanism. Mol Med Rep 2020; 22:4376-4382. [PMID: 33000198 PMCID: PMC7533442 DOI: 10.3892/mmr.2020.11506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 08/20/2020] [Indexed: 12/23/2022] Open
Abstract
The neuropeptide Y (NPY) system is considered one of the primary neural signaling pathways. NPY, produced by osteoblasts and other peripheral tissues, is known to inhibit biological functions of osteoblasts. However, until recently, little was known of the autocrine mechanism by which NPY is regulated. To investigate this mechanism, overexpression plasmids and small interfering RNA (siRNA) targeting NPY were transfected into the MC3T3-E1 cell line to observe its effects on osteogenesis. NPY overexpression was found to markedly enhance the osteogenic ability of MC3T3-E1 cells by an autocrine mechanism, coincident with the upregulation of osterix and runt-related transcription factor 2 (Runx2). Furthermore, NPY increased the activities of alkaline phosphatase (ALP) and osteocalcin (OCN) by upregulating their osteoblastic expression in vitro (as well as that of osterix and Runx2). Following transfection with NPY-siRNA, the osteoblastic ability of MC3T3-E1 cells was markedly decreased, and NPY deficiency inhibited the protein expression of osterix, Runx2, OCN and ALP in primary osteoblasts. Collectively, these results indicated that NPY played an important role in osteoblast differentiation by regulating the osterix and Runx2 pathways.
Collapse
Affiliation(s)
- Bo Zhang
- Department of Joint Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Xiaolei Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Juan Xiao
- Department of Evidence‑Based Medicine, Institute of Medical Sciences, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Xuguang Zhou
- Department of Joint Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Yuan Chen
- Departments of Central Research Lab, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Chunzheng Gao
- Departments of Spinal Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| |
Collapse
|
16
|
Sapkota M, Gao M, Li L, Yang M, Shrestha SK, Choi H, Soh Y. Macrolactin A protects against LPS-induced bone loss by regulation of bone remodeling. Eur J Pharmacol 2020; 883:173305. [PMID: 32673673 DOI: 10.1016/j.ejphar.2020.173305] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/19/2022]
Abstract
An imbalance between bone resorption and bone formation leads to several kinds of bone diseases such as rheumatoid arthritis, osteoporosis and Paget's disease. The imbalance between bone formations relative to bone resorption is responsible in bone remodeling. Several studies have suggested that macrolactin A (MA) has potent anti-inflammatory, anti-cancer and anti-angiogenic effects in various cell types. We investigate whether macrolactin A (MA) could inhibit bone loss and enhance bone formation. We used bone marrow monocytes/macrophages (BMMs) cells to study osteoclast activity and MC3T3-E1 cells to study osteoblast activity. MA suppressed tartrate resistant acid phosphatase (TRAP) positive multinucleated cells in a concentration-dependent manner, as well as at a specific time point. MA markedly reduced bone resorption activity and F-actin ring formation. Moreover, MA markedly suppressed receptor activator of nuclear factor k-B ligand (RANKL)-induced osteoclastogenic marker genes and transcription factors in-vitro. MA repressed osteoclast differentiation via activation of the phosphoinositide kinase-3/Akt, extracellular signal-regulated kinase 1/2 (ERK 1/2), c-Jun N-terminal kinase (JNK), nuclear factor of activated T cells, cytoplasmic 1 (NFATc1) and c-Fos signaling pathways. MA enhanced pre-osteoblast cell differentiation on mineralization activity, alkaline phosphatase (ALP) activity, and the expression of osteoblastogenic markers including osterix, RUNX-2, SMAD4, BMP-2, and ALP. Importantly, MA repressed lipopolysaccharide (LPS)-induced inflammatory bone loss in mice as shown by TRAP staining of femurs and μCT analysis. Therefore, MA could be a promising candidate for the inhibition and management of osteoporosis, arthritis, and bone lytic diseases.
Collapse
Affiliation(s)
- Mahesh Sapkota
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea
| | - Ming Gao
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, South Korea
| | - Liang Li
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea
| | - Ming Yang
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea
| | | | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, South Korea.
| | - Yunjo Soh
- School of Pharmacy, Jeonbuk National University, Jeonju, 561-756, South Korea.
| |
Collapse
|
17
|
Yi X, Gan Y, Jiang L, Yu L, Liu Y, Gao C. Rapid improvement in the macrolactins production of Bacillus sp. combining atmospheric room temperature plasma with the specific growth rate index. J Biosci Bioeng 2020; 130:48-53. [DOI: 10.1016/j.jbiosc.2020.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/09/2020] [Accepted: 02/13/2020] [Indexed: 02/06/2023]
|
18
|
Zhang G, Liu W, Wang R, Zhang Y, Chen L, Chen A, Luo H, Zhong H, Shao L. The Role of Tantalum Nanoparticles in Bone Regeneration Involves the BMP2/Smad4/Runx2 Signaling Pathway. Int J Nanomedicine 2020; 15:2419-2435. [PMID: 32368035 PMCID: PMC7174976 DOI: 10.2147/ijn.s245174] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/22/2020] [Indexed: 12/26/2022] Open
Abstract
Background In recent years, nanomaterials have been increasingly developed and applied in the field of bone tissue engineering. However, there are few studies on the induction of bone regeneration by tantalum nanoparticles (Ta NPs) and no reports on the effects of Ta NPs on the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) and the underlying mechanisms. The main purpose of this study was to investigate the effects of Ta NPs on bone regeneration and BMSC osteogenic differentiation and the underlying mechanisms. Materials and Methods The effects of Ta NPs on bone regeneration were evaluated in an animal experiment, and the effects of Ta NPs on osteogenic differentiation of BMSCs and the underlying mechanisms were evaluated in cell experiments. In the animal experiment, hematoxylin-eosin (HE) staining and hard-tissue section analysis showed that Ta NPs promoted bone regeneration, and immunohistochemistry revealed elevated expression of BMP2 and Smad4 in cells cultured with Ta NPs. Results The results of the cell experiments showed that Ta NPs promoted BMSC proliferation, alkaline phosphatase (ALP) activity, BMP2 secretion and extracellular matrix (ECM) mineralization, and the expression of related osteogenic genes and proteins (especially BMP2, Smad4 and Runx2) was upregulated under culture with Ta NPs. Smad4 expression, ALP activity, ECM mineralization, and osteogenesis-related gene and protein expression decreased after inhibiting Smad4. Conclusion These data suggest that Ta NPs have an osteogenic effect and induce bone regeneration by activating the BMP2/Smad4/Runx2 signaling pathway, which in turn causes BMSCs to undergo osteogenic differentiation. This study provides insight into the molecular mechanisms underlying the effects of Ta NPs in bone regeneration.
Collapse
Affiliation(s)
- Guilan Zhang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China.,Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, People's Republic of China
| | - Wenjing Liu
- Department of Prosthodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, People's Republic of China
| | - Ruolan Wang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Yanli Zhang
- Department of Prosthodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, People's Republic of China
| | - Liangjiao Chen
- Department of Orthodontics, Stomatological Hospital, Guangzhou Medical University, Guangzhou, 510150, People's Republic of China
| | - Aijie Chen
- Department of Prosthodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, People's Republic of China
| | - Haiyun Luo
- Department of Endodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, People's Republic of China
| | - Hui Zhong
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Longquan Shao
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China.,Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, People's Republic of China
| |
Collapse
|
19
|
Marine Microorganism-Derived Macrolactins Inhibit Inflammatory Mediator Effects in LPS-Induced Macrophage and Microglial Cells by Regulating BACH1 and HO-1/Nrf2 Signals through Inhibition of TLR4 Activation. Molecules 2020; 25:molecules25030656. [PMID: 32033079 PMCID: PMC7037854 DOI: 10.3390/molecules25030656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/31/2020] [Accepted: 02/01/2020] [Indexed: 12/12/2022] Open
Abstract
Recently, many natural products with unique structure and promising pharmacological potential have been reported from marine-derived microorganisms. The macrolactin A (MA), 15-epi-dihydromacrolactin F (DMF) and macrolactin F (MF) were obtained from the culture broth extract of a marine sediment derived microorganism Bacillus sp. HC001. In this study, MA, DMF and MF inhibited the production and expression of proinflammatory mediators of inducible nitric oxide synthase (iNOS) and cyclooxygenase–2 (COX-2) in LPS-stimulated RAW264.7 and BV2 cells. Also, MA, DMF and MF exert anti-inflammatory effects through the expression of heme oxygenase (HO) -1, a stress-inducing enzyme that converts heme to carbon monoxide (CO), iron and biliberdine. Toll-like receptor 4 (TLR4) expressed by lipopolysaccharide (LPS) was inhibited by increased expression of HO-1 transcription factor Nrf2 and down regulation of BTB Domain And CNC Homolog 1 (BACH1), inhibited phosphorylation of Mitogen-activated protein kinase kinase kinase 7 (MAP3K7, TAK1) and nuclear factor kappaB (NF-κB). These results show that MA, DMF and MF effectively inhibited TLR4 by regulating BACH1 and HO-1/Nrf2 signals in LPS-stimulated RAW264.7 and BV2 cells, which suggests the possibility of use as an anti-inflammatory agent.
Collapse
|
20
|
Xue S, Shao Q, Zhu LB, Jiang YF, Wang C, Xue B, Lu HM, Sang WL, Ma JZ. LDC000067 suppresses RANKL-induced osteoclastogenesis in vitro and prevents LPS-induced osteolysis in vivo. Int Immunopharmacol 2019; 75:105826. [DOI: 10.1016/j.intimp.2019.105826] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/11/2019] [Accepted: 08/12/2019] [Indexed: 12/22/2022]
|
21
|
Zhu S, Zhu L, Yu J, Wang Y, Peng B. Anti-osteoclastogenic effect of epigallocatechin gallate-functionalized gold nanoparticles in vitro and in vivo. Int J Nanomedicine 2019; 14:5017-5032. [PMID: 31371944 PMCID: PMC6627179 DOI: 10.2147/ijn.s204628] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 05/03/2019] [Indexed: 12/15/2022] Open
Abstract
Background: Epigallocatechin gallate (EGCG), the major anti-inflammatory compound in green tea, has been shown to suppress osteoclast (OC) differentiation. However, the low aqueous solubility of EGCG always leads to poor bioavailability, adverse effects, and several drawbacks for clinical applications. Purpose: In this study, we synthesized EGCG-capped gold nanoparticles (EGCG-GNPs) to solve the drawbacks for clinical uses of EGCG in bone destruction disorders by direct reduction of HAuCl4 in EGCG aqueous solution. Methods and Results: The obtained EGCG-GNPs were negatively charged and spherical. Theoretical calculation results suggested that EGCG was released from GNPs in an acidic environment. Cellular uptake study showed an obviously large amount of intracellular EGCG-GNPs without cytotoxicity. EGCG-GNPs exhibited better effects in reducing intracellular reactive oxygen species levels than free EGCG. A more dramatic anti-osteoclastogenic effect induced by EGCG-GNPs than free EGCG was observed in lipopolysaccharide (LPS)-stimulated bone marrow macrophages, including decreased formation of TRAP-positive multinuclear cells and actin rings. Meanwhile, EGCG-GNPs not only suppressed the mRNA expression of genetic markers of OC differentiation but also inhibited MAPK signaling pathways. Furthermore, we confirmed that EGCG-GNPs greatly reversed bone resorption in the LPS-induced calvarial bone erosion model in vivo, which was more effective than applying free EGCG, specifically in inhibiting the number of OCs, improving bone density, and preventing bone loss. Conclusion: EGCG-GNPs showed better anti-osteoclastogenic effect than free EGCG in vitro and in vivo, indicating their potential in anti-bone resorption treatment strategy.
Collapse
Affiliation(s)
- Shenting Zhu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Lingxin Zhu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Jingjing Yu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Yanqing Wang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| | - Bin Peng
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, People's Republic of China
| |
Collapse
|
22
|
Qiu X, Zhuang M, Lu Z, Liu Z, Cheng D, Zhu C, Liu J. RIPK1 suppresses apoptosis mediated by TNF and caspase-3 in intervertebral discs. J Transl Med 2019; 17:135. [PMID: 31029152 PMCID: PMC6487042 DOI: 10.1186/s12967-019-1886-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 04/16/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Low back pain has become a serious social and economic burden and the leading cause of disability worldwide. Among a variety of pathophysiological triggers, intervertebral disc (IVD) degeneration plays a primary underlying role in causing such pain. Specifically, multiple independent endplate changes have been implicated in the initiation and progression of IVD degeneration. METHODS In this study, we built a signaling network comprising both well-characterized IVD pathology-associated proteins as well as some potentially correlated proteins that have been associated with one or more of the currently known pathology-associated proteins. We then screened for the potential IVD degeneration-associated proteins using patients' normal and degenerative endplate specimens. Short hairpin RNAs for receptor interacting serine/threonine kinase 1 (RIPK1) were constructed to examine the effects of RIPK1 knockdown in primary chondrocyte cells and in animal models of caudal vertebra intervertebral disc degeneration in vivo. RESULTS RIPK1 was identified as a potential IVD degeneration-associated protein based on IVD pathology-associated signaling networks and the patients' degenerated endplate specimens. Construction of the short hairpin RNAs was successful, with short-term RIPK1 knockdown triggering inflammation in the primary chondrocytes, while long-term knockdown triggered apoptosis through cleavage of the caspase 3 pathway, down-regulated NF-κB and mitogen-activating protein kinase (MAPK)s cascades, and decreased cell survival and inflammation. Animal models of caudal vertebra intervertebral disc degeneration further demonstrated that apoptosis was induced by up-regulation of tumor necrosis factor (TNF) accompanied by down-regulation of NF-κB and MAPKs cascades that are dependent on caspase and RIPK1. CONCLUSIONS These results provide proof-of-concept for developing novel therapies to combat IVD degeneration through interfering with RIPK1-mediated apoptosis signaling pathways especially in patients with RIPK1 abnormality.
Collapse
Affiliation(s)
- Xubin Qiu
- Department of Spine, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Tianning District, Changzhou, 213003 Jiangsu China
| | - Ming Zhuang
- Department of Spine, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Tianning District, Changzhou, 213003 Jiangsu China
| | - Ziwen Lu
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013 Jiangsu China
| | - Zhiwei Liu
- Department of Spine, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Tianning District, Changzhou, 213003 Jiangsu China
| | - Dong Cheng
- Department of Spine, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Tianning District, Changzhou, 213003 Jiangsu China
| | - Chenlei Zhu
- Department of Spine, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Tianning District, Changzhou, 213003 Jiangsu China
| | - Jinbo Liu
- Department of Spine, The Third Affiliated Hospital of Soochow University, 185 Juqian Street, Tianning District, Changzhou, 213003 Jiangsu China
| |
Collapse
|
23
|
Kim JS, Jeon J, An JJ, Yi HK. Interval running training improves age-related skeletal muscle wasting and bone loss: Experiments with ovariectomized rats. Exp Physiol 2019; 104:691-703. [PMID: 30843284 DOI: 10.1113/ep087458] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 02/18/2019] [Indexed: 12/11/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the effect and mechanism of interval running training on age-related muscle wasting and bone loss in an ovariectomized rat model? What is the main finding and its importance? Interval running training improved muscle growth and osteogenic differentiation by enhancing the expression of bone morphogenic proteins and sirtuins in ageing-induced ovariectomized rats. Therefore, the repetition of low and high intensities within a single exercise bout, such as interval running training, may be recommended as a practical intervention to prevent skeletal muscle wasting and bone loss in the elderly. ABSTRACT Effective prophylactic strategies are needed for the suppression of age-related muscle wasting and bone loss after menopause. Exercise training is attractive due to its potential for improving energy metabolism, as well as age-related muscle wasting and bone loss. In particular, interval running (IR) training involves a repetition of low and high intensities within a single exercise bout. Therefore, this study elucidated the effect of interval training on muscle and bone health, as well as anti-ageing, in ovariectomized (OVX) rats. The anti-ageing effect of IR on muscle and bone was tested using western blotting and micro-computed tomography analysis, tartrate-resistant acid phosphatase and immunohistochemical staining. IR significantly inhibited the expression of inflammatory molecules, and improved antioxidant activity via down-regulation of mitogen-activated protein kinases (MAPKs) in the ageing-induced OVX rats skeletal muscle. IR compared with continuous running (CR) improved muscle mass and growth in OVX rats by the promotion of muscle growth-related factors including MyoD, myogenin, phospho-mechanistic target of rapamycin (p-mTOR), sirtuins (SIRTs), and bone morphogenic proteins (BMPs). IR also effectively recovered OVX-induced bone loss via the down-regulation of bone resorption and osteoclast formation in receptor activator of nuclear factor κB ligand (RANKL)-treated bone marrowmacrophages (BMMs). In particular, IR led to high expression of SIRT1 and 6, which promoted osteogenic differentiation and bone formation via modulating the BMP signalling pathway compared with CR training. The in vivo effect of IR was confirmed by immunohistochemical staining with the improvement of bone formation molecules such as BMPs and SIRTs. These results suggested that IR training affected myogenic and osteogenic formation. So, IR training may be considered for prevention of muscle wasting and bone loss for the elderly.
Collapse
Affiliation(s)
- Jeong-Seok Kim
- College of Natural Science, Chonbuk National University, 664-14 Dukjin-dong, Dukjin-ku, Jeonju, Chonbuk, Republic of Korea
| | - Jin Jeon
- College of Education, Chonbuk National University, 664-14 Dukjin-dong, Dukjin-ku, Jeonju, Chonbuk, Republic of Korea
| | - Jin-Jeong An
- College of Education, Chonbuk National University, 664-14 Dukjin-dong, Dukjin-ku, Jeonju, Chonbuk, Republic of Korea
| | - Ho-Keun Yi
- Schoolo of Dentistry, Chonbuk National University, 664-14 Dukjin-dong, Dukjin-ku, Jeonju, Chonbuk, 561-756, Republic of Korea
| |
Collapse
|
24
|
Han X, Gong S, Li N, Wang X, Liu P, Xu Y, He X, Jiang W, Si S. A Novel Small Molecule Which Increases Osteoprotegerin Expression and Protects Against Ovariectomy-Related Bone Loss in Rats. Front Pharmacol 2019; 10:103. [PMID: 30914947 PMCID: PMC6421503 DOI: 10.3389/fphar.2019.00103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/25/2019] [Indexed: 12/24/2022] Open
Abstract
The ratio of osteoprotegerin (OPG) to the receptor activator of NF-κB ligand (RANKL) is a key determinant in the regulation of bone metabolism. The study was performed to screen novel anti-osteoporotic drugs regulating OPG/RANKL ratio and evaluate their effect on bone metabolism. According to the screening results and in vitro results, we found a small molecule, E09241, significantly increased the ratio of OPG/RANKL by mainly increasing OPG expression. Our in vitro studies showed that E09241 increased the alkaline phosphatase (ALP) activity of mouse osteoblasts, promoted mineralization, and increased the expression of osteogenic differentiation-related genes. In addition, we observed that E09241 inhibited RANKL-induced osteoclast differentiation and reduced the expression of osteoclast differentiation-related proteins nuclear factor of activated T cells c1 (NFATc1) and matrix metalloproteinase 9 (MMP-9). More importantly, E09241 exerted therapeutic protection against bone loss in ovariectomized rats in vivo. This protective effect was confirmed to be achieved by inhibiting bone resorption and promoting bone formation in vivo. Mechanistically, E09241 regulates OPG expression through canonical Wnt/β-catenin signaling. Our findings suggest that E09241 is a promising small-molecule compound for treating osteoporosis with a dual effect on osteoblasts and osteoclasts.
Collapse
Affiliation(s)
- Xiaowan Han
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shiqiang Gong
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, China
| | - Ni Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao Wang
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Liu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yanni Xu
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaobo He
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Jiang
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuyi Si
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
25
|
Ma Z, Yu R, Zhao J, Sun L, Jian L, Li C, Liu X. Constant hypoxia inhibits osteoclast differentiation and bone resorption by regulating phosphorylation of JNK and IκBα. Inflamm Res 2019; 68:157-166. [PMID: 30604211 DOI: 10.1007/s00011-018-1209-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/19/2018] [Accepted: 12/17/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Osteoclasts are responsible for the bone loss in rheumatoid arthritis (RA). Hypoxia has been suggested to play key roles in pathological bone loss. However, the current understanding of the effects of hypoxia on osteoclastogenesis is controversial. Effects of hypoxia on both the formation and function of osteoclasts requires examination. In the current study, we aimed to explore the effect of hypoxia on osteoclast differentiation and the underlying mechanisms. METHODS RAW264.7 cells and murine bone-marrow-derived monocytes were used to induce osteoclastogenesis in the presence of macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor kappa B ligand (RANKL). Hypoxic conditions were maintained in a hypoxic chamber at 5% CO2 and 1% O2, balanced with N2. Osteoclasts were detected by tartrate-resistant acid phosphatase (TRAP) staining. A bone resorption assay was carried out in vitro using bone slices. RT-PCR was conducted to detect osteoclast markers and transcription factors. The phosphorylation of nuclear factor-κBα (IκBα), c-Jun N-terminal kinase (JNK), extracellular regulated protein kinase (ERK), and p38 was detected by western blotting. Mann-Whitney U test or Student's t test was used to compare differences between the two groups. RESULTS TRAP staining and the bone resorption assay revealed that hypoxia-restrained osteoclast differentiation and bone resorption. Expression of osteoclast markers including cathepsin K, RANK, and TRAP decreased during osteoclast differentiation under hypoxic conditions (all P < 0.05). Hypoxia at 1% O2 did not affect cell viability, whereas it dramatically abated RANKL-dependent phosphorylation of the JNK-mitogen-activated protein kinases (MAPK) and IκBα pathways. Moreover, the expression of nuclear factor of activated T-cell cytoplasmic 1 (NFATc1) was inhibited under hypoxic conditions (all P < 0.05). CONCLUSIONS These results suggest that constant hypoxia at 1% O2 significantly restrains osteoclast formation and resorbing function without affecting cell viability. Constant hypoxia might inhibit RANKL-induced osteoclastogenesis by regulating NFATc1 expression via interfering the phosphorylation of JNK and IκBα.
Collapse
Affiliation(s)
- Zhenzhen Ma
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Ruohan Yu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Jinxia Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Lin Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Leilei Jian
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Changhong Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China.
| | - Xiangyuan Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China.
| |
Collapse
|
26
|
Zhang Y, Cai F, Liu J, Chang H, Liu L, Yang A, Liu X. Transfer RNA-derived fragments as potential exosome tRNA-derived fragment biomarkers for osteoporosis. Int J Rheum Dis 2018; 21:1659-1669. [PMID: 30345646 DOI: 10.1111/1756-185x.13346] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yan Zhang
- Department of Orthopedics; Shanghai Yangpu Hospital Affiliated to Tongji University; Shanghai China
| | - Feng Cai
- Department of Orthopedics; Shanghai Yangpu Hospital Affiliated to Tongji University; Shanghai China
| | - Ju Liu
- Department of Orthopedics; Shanghai Zhoupu Hospital; Shanghai China
| | - Hongze Chang
- Department of Orthopedics; Shanghai Yangpu Hospital Affiliated to Tongji University; Shanghai China
| | - Liang Liu
- Department of Orthopedics; Shanghai Yangpu Hospital Affiliated to Tongji University; Shanghai China
| | - Anli Yang
- Department of Orthopedics; Shanghai Yangpu Hospital Affiliated to Tongji University; Shanghai China
| | - Xiaodong Liu
- Department of Orthopedics; Shanghai Yangpu Hospital Affiliated to Tongji University; Shanghai China
- Department of Orthopedics; Shanghai Zhoupu Hospital; Shanghai China
| |
Collapse
|
27
|
Cordycepin Accelerates Osteoblast Mineralization and Attenuates Osteoclast Differentiation In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:5892957. [PMID: 30410556 PMCID: PMC6206560 DOI: 10.1155/2018/5892957] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/05/2018] [Accepted: 10/10/2018] [Indexed: 11/17/2022]
Abstract
Bone homeostasis destruction is triggered by the uncontrolled activity of osteoblasts and osteoclasts. Targeting both the regulation of bone formation and resorption is a promising strategy for treating bone disorders. Cordycepin is a major component of Chinese caterpillar fungus Cordyceps militaris. It exerts a variety of biological actions in various cells and animal models. However, its function on bone metabolism remains unclear. In the present study, we discovered a dual-action function of cordycepin in murine MC3T3-E1 and RAW264.7 cells. MC3T3-E1 cells were cultured in an osteogenic medium in the presence of 1 μM cordycepin for up two weeks. Cordycepin was used for effects of osteoblast and osteoclast differentiation. Cell viability was measured using the MTT assay. Osteoblast differentiation was confirmed by alizarin red staining, ALP activity, western blot, and real-time PCR. Osteoclast differentiation and autophagic activity were confirmed via TRAP staining, pit formation assay, confocal microscopy, western blot, and real-time PCR. Cordycepin promoted osteoblast differentiation, matrix mineralization, and induction of osteoblast markers via BMP2/Runx2/Osterix pathway. On the other hand, RAW264.7 cells were differentiated into osteoclast by RANKL treatment for 72 h. 1 μM cordycepin significantly inhibited RANKL-induced osteoclast formation and resorption activity through disturbing the actin ring-formatted sealing zone and activating cathepsin K and MMP9. These findings indicate that cordycepin might be an innovative dual-action therapeutic agent for bone disease caused by an imbalance of osteoblasts and osteoclasts.
Collapse
|
28
|
Cui Y, Huang R, Wang Y, Zhu L, Zhang X. Down-regulation of LGR6 promotes bone fracture recovery using bone marrow stromal cells. Biomed Pharmacother 2018; 99:629-637. [PMID: 29625528 DOI: 10.1016/j.biopha.2017.12.109] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 12/08/2017] [Accepted: 12/28/2017] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The Leucine-rich repeat-containing G-protein coupled receptor 6 (LGR6) is a well-known marker of stem cells. In present study, we aimed to further explore the effects of LGR6 on promoting osteogenic differentiation of bone marrow stromal cells (BMSCs) and bone healing. METHODS Flow cytometry assay was used to determine the expression of BMSCs surface markers, and western blot was performed to detect the LGR6 protein expression. The osteogenic differentiation of BMSCs was qualified using ALP and ARS staining. Protein expression of osteogenic genes (ALP, Collagen I, Runx2 and OCN) were evaluated using western blot. In vivo, BMSCs transfected with sh-LGR6 or LGR6 cDNA were injected into the fracture site to establish rat fracture healing model. X-ray system and hematoxylin-eosin (HE) staining were conducted to observe the fracture recovery. Biomechanical test was performed to detect the changes of maximum load, elastic modules and bone mineral density. RESULTS In BMSCS, CD90 and CD44 were positively expressed, while CD11b was negatively expressed. Expression level of LGR6 gradually decreased with the osteogenic differentiation of BMSCs. The osteogenic genes expression level during the osteogenic differentiation significantly increased with the down-regulation of LGR6. In vivo, 8 weeks after injection, rats treated with LGR6 knocked-down BMSCs showed increased number of fibroblasts. Maximum load, elastic modulus and the bone mineral density were enhanced with the knocking-down of LGR6. CONCLUSION Inhibition of LGR6 promoted the osteogenic differentiation of BMSCs in vitro. Moreover, transplantation of LGR6-knockout BMSCs in rat models contributes to a better recovery after the fracture.
Collapse
Affiliation(s)
- Yanchao Cui
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Renchun Huang
- Emergency Department, Hanzhong Central Hospital, Hanzhong 723000, Shaanxi, China
| | - Yingzhou Wang
- Beijing Meinuoyikang Health Food Co., Ltd., Beijing 100000, China
| | - Li Zhu
- Second Department of Orthopedics, The First Central Hospital of Baoding, No. 320 North Great Wall Street, Baoding 071000, Hebei, China.
| | - Xueliang Zhang
- Department of Orthopedics, The First Hospital of Lanzhou University, No. 1 West Gang Road, East District, Lanzhou 730000, Gansu, China.
| |
Collapse
|
29
|
Fan S, Gao X, Chen P, Li X. Myricetin ameliorates glucocorticoid-induced osteoporosis through the ERK signaling pathway. Life Sci 2018; 207:205-211. [DOI: 10.1016/j.lfs.2018.06.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/28/2018] [Accepted: 06/05/2018] [Indexed: 12/14/2022]
|
30
|
Peng M, Wang Y, Qiang L, Xu Y, Li C, Li T, Zhou X, Xiao M, Wang J. Interleukin-35 Inhibits TNF-α-Induced Osteoclastogenesis and Promotes Apoptosis via Shifting the Activation From TNF Receptor-Associated Death Domain (TRADD)-TRAF2 to TRADD-Fas-Associated Death Domain by JAK1/STAT1. Front Immunol 2018; 9:1417. [PMID: 30061878 PMCID: PMC6054960 DOI: 10.3389/fimmu.2018.01417] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 06/06/2018] [Indexed: 12/27/2022] Open
Abstract
Over-activated osteoclasts derived from myeloid or peripheral blood monocytes by inflammatory cytokines results in osteoporosis, osteoarthritis, and other bone erosion-related diseases. Interleukin 35 (IL-35) is a novel anti-inflammatory and immunosuppressive factor. This study investigated the effect of IL-35 on TNF-α-induced osteoclastogenesis. In the presence of IL-35, this process was detected by Tartrate-Resistant Acid Phosphatase (TRAP) staining, F-actin staining, and bone resorption assays. The effects of IL-35 on TNF-α-induced apoptosis were demonstrated by TUNEL staining, cell viability assays, and flow cytometry. Moreover, a microarray was performed to detect the effect of IL-35 on TNF-α-activated phosphatase kinase. The effect of IL-35 on the TNF-α-mediated activation of NF-κB, MAPK, TRAF2, RIP1, Fas-associated death domain (FADD), and caspase3 was further investigated. In addition, a murine calvarial osteolysis model was established via the subcutaneous injection of TNF-α onto the calvaria, and histological analysis was subsequently performed. As a result, IL-35 inhibited TNF-α-induced osteoclast formation and bone resorption in vitro and osteolysis calvaria in vivo. NFATc1, c-fos, and TRAP were downregulated by IL-35 through the inhibition of NF-κB and MAPK, during which JAK1/STAT1 was activated. Moreover, based on TUNEL staining and flow cytometry, IL-35 was shown to enhance TNF-α-induced osteoclast apoptosis. Meanwhile, FADD and cleaved-caspase 3 were increased in cells treated with TNF-α and IL-35, whereas the DNA-binding activity of NF-κB was increased in TNF-α-treated cells, but was decreased in cells treated with both TNF-α and IL-35. In conclusion, IL-35 inhibits TNF-α-induced osteoclastogenesis and promotes apoptosis by activating JAK1/STAT1 and shifting activation from TNF receptor-associated death domain (TRADD)-TRAF2/RIP1-NF-κB to TRADD-FADD-caspase 3 signaling.
Collapse
Affiliation(s)
- Mingzheng Peng
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanguo Wang
- Department of Orthopedic-Spine Surgery, Binzhou Central Hospital, Binzhou Medical College, Binzhou, China
| | - Lei Qiang
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Southwest Jiaotong University College of Medicine, Chengdu, China
| | - Yan Xu
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
- Southwest Jiaotong University College of Medicine, Chengdu, China
| | - Cuidi Li
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Tao Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaojun Zhou
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ming Xiao
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinwu Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
31
|
Hsieh MK, Wu CJ, Chen CC, Tsai TT, Niu CC, Wu SC, Lai PL. BMP-2 gene transfection of bone marrow stromal cells to induce osteoblastic differentiation in a rat calvarial defect model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:806-816. [PMID: 30033316 DOI: 10.1016/j.msec.2018.06.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 05/09/2018] [Accepted: 06/07/2018] [Indexed: 12/22/2022]
Abstract
Gene therapy for bone tissue engineering has been widely developed. Recently, non-viral DNA-based gene therapy has been reported to be a safer and more efficient method of delivering DNA into target cells. We used a non-viral gene transfection reagent to delivery bone morphogenetic protein-2 (BMP-2) gene into bone marrow stromal cells (BMSCs). Primary BMSCs were isolated from rat femurs and transfected with BMP-2 plasmids. The transfection rate was analyzed using flow cytometry. The concentration of BMP-2 protein was quantified using an enzyme-linked immunosorbent assay. Levels of osteopontin and osteocalcin were measured to evaluate osteogenic differentiation. In vivo, we designed a critical-size calvarial defect rat model to study new bone regeneration, using Matrigel as a scaffold to carry BMP-2-transfected bone marrow stromal cells into the defect site. New bone formation was assessed by micro-computed tomography, X-ray, immunohistochemical staining and histomophometry. The transfection rate after 72 h was 31.5%. The BMP-2 protein level as well as osteopontin and osteocalcin expressions were higher in the experimental group (transfected with BMP-2) than the control group (transfected with green fluorescent protein, GFP). The in vivo study suggested that bone healing occurred 12 weeks after scaffold implantation. In addition, BMP-2-transfected bone marrow stromal cells provided better osteogenic differentiation than primary bone marrow stromal cells. Our findings suggest that non-viral gene therapy may be useful in bone tissue engineering. SIGNIFICANCE The study has clinical implications for the wider use of BMP-2-transfected BMSCs for cell-based transplantation therapy in bone regeneration.
Collapse
Affiliation(s)
- Ming-Kai Hsieh
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan; Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Jung Wu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Chieh Chen
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Tsung-Ting Tsai
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chi-Chien Niu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shinn-Chih Wu
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan; Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan.
| | - Po-Liang Lai
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| |
Collapse
|
32
|
Lei Y, Su J, Xu H, Yu Q, Zhao M, Tian J. Pulsed electromagnetic fields inhibit osteoclast differentiation in RAW264.7 macrophages via suppression of the protein kinase B/mammalian target of rapamycin signaling pathway. Mol Med Rep 2018; 18:447-454. [PMID: 29749519 DOI: 10.3892/mmr.2018.8999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 04/17/2018] [Indexed: 11/06/2022] Open
Abstract
When bone resorption, aided by the activity of osteoclasts, exceeds bone formation induced by osteoblasts, bone metabolism loses equilibration, which results in the development of bone diseases, including osteoporosis. Pulsed electromagnetic fields (PEMFs) are known to be involved in various biological processes, including cell proliferation, differentiation and apoptosis. However, the exact mechanism of action of osteoclasts remains poorly understood. In the present study, the effects of PEMFs on osteoclast differentiation and associated signaling pathways were systematically investigated in RAW264.7 macrophages. RAW264.7 cells were induced by receptor activator of nuclear factor‑κB ligand (RANKL) to obtain osteoclasts in vitro. The results of the present study demonstrated that PEMF exposure decreased osteoclast formation, limited tartrate‑resistant acid phosphatase activity, contracted bone resorption area and inhibited osteoclastic specific gene and protein expression. Furthermore, western blot analysis indicated that PEMFs distinctly abolished the upregulation of phosphorylated‑protein kinase B (Akt), ‑mammalian target of rapamycin (mTOR) and ‑ribosome S6 protein kinase (p70S6K) induced by RANKL, which was consistent with the effects of pharmacological inhibitor perifosine and rapamycin. Therefore, the present study suggested that PEMFs reduced osteoclast formation from RAW264.7 macrophages via inhibition of the Akt/mTOR signaling pathway. These findings provided novel insight into the mechanisms through which PEMFs suppress osteoclast differentiation.
Collapse
Affiliation(s)
- Yutian Lei
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
| | - Jinyu Su
- Department of Pathophysiology, Key Laboratory for Shock and Microcirculation Research of Guangdong, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Haixia Xu
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
| | - Qiang Yu
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
| | - Ming Zhao
- Department of Pathophysiology, Key Laboratory for Shock and Microcirculation Research of Guangdong, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jing Tian
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
| |
Collapse
|
33
|
Jin G, Wang FF, Li T, Jia DD, Shen Y, Xu HC. Neogambogic Acid Suppresses Receptor Activator of Nuclear Factor κB Ligand (RANKL)-Induced Osteoclastogenesis by Inhibiting the JNK and NF-κB Pathways in Mouse Bone Marrow-Derived Monocyte/Macrophages. Med Sci Monit 2018; 24:2569-2577. [PMID: 29698379 PMCID: PMC5939603 DOI: 10.12659/msm.909651] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background Neogambogic acid (NGA) is used in traditional Chinese medicine. The aim of this study was to investigate the effects of NGA on gene signaling pathways involved in osteoclastogenesis in mouse bone marrow-derived monocyte/macrophages (BMMs) and on bone resorption in vitro. Material/Methods Primary mouse BMMs were cultured with increasing concentrations of NGA. Real-time polymerase chain reaction was used to study the expression of mRNAs corresponding to gene products specific to receptor activator of NF-κB ligand (RANKL)-induced osteoclast differentiation, including tartrate-resistant acid phosphatase (TRAP), calcitonin receptor (CTR), cathepsin K (CTSK), and nuclear factor of activated T cells c1 (NFATc1). A cell counting kit-8 assay was used to evaluate cell proliferation. Western blotting and confocal immunofluorescence microscopy were used to investigate the signaling pathways. A bone resorption model was used to quantify bone resorption. Results An NGA dose of ≤0.4 μg/ml had no significant effect on the proliferation of mouse BMMs in vitro (P>0.05); concentrations of between 0.1–0.4 μg/ml significantly inhibited RANKL-induced osteoclastogenesis (P<0.01) in a dose-dependent manner. Compared with the control group, NGA significantly reduced RANKL-induced bone resorption in vitro (P <0.01), and downregulated the expression of osteoclast-related mRNAs of TRAP, CTR, CTSK, and NFATc1. NGA suppressed the activation of JNK but not the p38 signaling pathway and significantly reduced NF-κB p65 phosphorylation and the nuclear transport of NF-κB molecules, which inhibited NFATc1 expression. Conclusions NGA suppressed RANKL-induced osteoclastogenesis by inhibiting the JNK and NF-κB pathways in mouse BMMs in vitro and reduced osteoclastic bone resorption.
Collapse
Affiliation(s)
- Gu Jin
- Department of Bone and Soft Tissue Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Fang-Fang Wang
- Department of Gynecologic Radiation Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Tao Li
- Department of Bone and Soft Tissue Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Dong-Dong Jia
- Department of Bone and Soft Tissue Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Yong Shen
- Department of Emergency, Zhejiang Provincial Peoples' Hospital, Peoples' Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China (mainland)
| | - Hai-Chao Xu
- Department of Bone and Soft Tissue Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China (mainland)
| |
Collapse
|
34
|
Bai BL, Xie ZJ, Weng SJ, Wu ZY, Li H, Tao ZS, Boodhun V, Yan DY, Shen ZJ, Tang JH, Yang L. Chitosan oligosaccharide promotes osteoclast formation by stimulating the activation of MAPK and AKT signaling pathways. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:1207-1218. [PMID: 29502489 DOI: 10.1080/09205063.2018.1448336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bing-Li Bai
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhong-Jie Xie
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - She-Ji Weng
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zong-Yi Wu
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hang Li
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, WuHu, China
| | - Viraj Boodhun
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - De-Yi Yan
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zi-Jian Shen
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jia-Hao Tang
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lei Yang
- Department of Orthopedics Surgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
35
|
Involvement of bone morphogenetic protein-related pathways in the effect of aucubin on the promotion of osteoblast differentiation in MG63 cells. Chem Biol Interact 2018; 283:51-58. [PMID: 29408431 DOI: 10.1016/j.cbi.2018.02.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/20/2018] [Accepted: 02/02/2018] [Indexed: 12/20/2022]
Abstract
Aucubin, an iridoid glycoside found in several plants, such as Eucommia ulmoide and Rehmannia, has various pharmacological effects. Bone formation is a complex process in which osteoblast differentiation plays an important role. This study aimed to investigate the promotion effects of aucubin on osteoblast differentiation in MG63 cells, a human osteoblast-like cell line. Aucubin not only improved osteoblast differentiation, as shown by enhanced ALP (alkaline phosphatase) concentration and mineralization in cells, but increased the expression of various cytokines, including collagen I, osteocalcin, osteopontin, integrin β1, and Osterix. Aucubin strongly enhanced the levels of BMP2 (bone morphogenetic proteins-2) in MG63 cells, which play a central role during osteoblast differentiation. Further data show that aucubin exposure after 1 day, 7 days, and 14 days enhanced the expression of Smad1, 5, and 8, and the phosphoresced levels of MAPKs (mitogen-activated protein kinases) family Erk (extracellular signal-regulated kinases), JNK (c-Jun-NH2-terminal kinases), P38, and Akt (serine/threonine protein kinase)/mTOR (mammalian target of rapamycin)/p70s6k in MG63 cells. This study shows the improved effects of aucubin on osteoblast differentiation in MG63 cells, related to the signaling of BMP2-mediated Smads (drosophila mothers against decapentaplegic proteins), MAPKs, and Akt/mTOR/p70S6K. This study indicates the potential of aucubin for osteoporosis treatment.
Collapse
|