1
|
Huong NT, Son NT. Icaritin: A phytomolecule with enormous pharmacological values. PHYTOCHEMISTRY 2023:113772. [PMID: 37356700 DOI: 10.1016/j.phytochem.2023.113772] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 05/24/2023] [Accepted: 06/10/2023] [Indexed: 06/27/2023]
Abstract
Pharmacological studies on flavonoids have always drawn much interest for many years. Icaritin (ICT), a representative flavone containing an 8-prenyl group, is a principal compound detected in medicinal plants of the genus Epimedum, the family Berberidaceae. Experimental results in the phytochemistry and pharmacology of this molecule are abundant now, but a deep overview has not been carried out. The goal of this review is to provide an insight into the natural observation, biosynthesis, biotransformation, synthesis, pharmacology, and pharmacokinetics of prenyl flavone ICT. The relevant data on ICT was collected from bibliographic sources, like Google Scholar, Web of Science, Sci-Finder, and various published journals. "Icaritin" alone or in combination is the main keyword to seek for references, and references have been updated till now. ICT is among the characteristic phytomolecules of Epimedum plants. Bacteria monitored its biosynthesis and biotransformation, while this agent was rapidly synthesized from phloroglucinol by microwave-assistance Claisen rearrangement. ICT is a potential agent in numerous in vitro and in vivo pharmacological records, which demonstrated its role in cancer treatments via apoptotic-related mechanisms. It also brings in various health benefits since it reduced harmful effects on the liver, lung, heart, bone, blood, and skin, and improved immune responses. Pharmacokinetic outcomes indicated that its metabolic pathway involved hydration, hydroxylation, dehydrogenation, glycosylation, and glucuronidation. Molecule mechanisms of action at a cellular level are predominant, but clinical studies are expected to get more. Structure-activity relationship records seem insufficient, and the studies on nano-combined approaches to improve its soluble property in living bodied medium are needed.
Collapse
Affiliation(s)
- Nguyen Thi Huong
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Viet Nam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Viet Nam.
| |
Collapse
|
2
|
Polymeric Systems for the Controlled Release of Flavonoids. Pharmaceutics 2023; 15:pharmaceutics15020628. [PMID: 36839955 PMCID: PMC9964149 DOI: 10.3390/pharmaceutics15020628] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/15/2023] Open
Abstract
Flavonoids are natural compounds that are attracting great interest in the biomedical field thanks to the wide spectrum of their biological properties. Their employment as anticancer, anti-inflammatory, and antidiabetic drugs, as well as for many other pharmacological applications, is extensively investigated. One of the most successful ways to increase their therapeutic efficacy is to encapsulate them into a polymeric matrix in order to control their concentration in the physiological fluids for a prolonged time. The aim of this article is to provide an updated overview of scientific literature on the polymeric systems developed so far for the controlled release of flavonoids. The different classes of flavonoids are described together with the polymers most commonly employed for drug delivery applications. Representative drug delivery systems are discussed, highlighting the most common techniques for their preparation. The flavonoids investigated for polymer system encapsulation are then presented with their main source of extraction and biological properties. Relevant literature on their employment in this context is reviewed in relationship to the targeted pharmacological and biomedical applications.
Collapse
|
3
|
Kumari S, Katiyar S, Darshna, Anand A, Singh D, Singh BN, Mallick SP, Mishra A, Srivastava P. Design strategies for composite matrix and multifunctional polymeric scaffolds with enhanced bioactivity for bone tissue engineering. Front Chem 2022; 10:1051678. [PMID: 36518978 PMCID: PMC9742444 DOI: 10.3389/fchem.2022.1051678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 11/14/2022] [Indexed: 09/19/2023] Open
Abstract
Over the past few decades, various bioactive material-based scaffolds were investigated and researchers across the globe are actively involved in establishing a potential state-of-the-art for bone tissue engineering applications, wherein several disciplines like clinical medicine, materials science, and biotechnology are involved. The present review article's main aim is to focus on repairing and restoring bone tissue defects by enhancing the bioactivity of fabricated bone tissue scaffolds and providing a suitable microenvironment for the bone cells to fasten the healing process. It deals with the various surface modification strategies and smart composite materials development that are involved in the treatment of bone tissue defects. Orthopaedic researchers and clinicians constantly focus on developing strategies that can naturally imitate not only the bone tissue architecture but also its functional properties to modulate cellular behaviour to facilitate bridging, callus formation and osteogenesis at critical bone defects. This review summarizes the currently available polymeric composite matrices and the methods to improve their bioactivity for bone tissue regeneration effectively.
Collapse
Affiliation(s)
- Shikha Kumari
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Soumya Katiyar
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Darshna
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Aditya Anand
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Divakar Singh
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | - Bhisham Narayan Singh
- Department of Ageing Research, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sarada Prasanna Mallick
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Andhra Pradesh, India
| | - Abha Mishra
- School of Biochemical Engineering, IIT BHU, Varanasi, India
| | | |
Collapse
|
4
|
Xing Y, Zhong X, Chen Z, Liu Q. Optimized osteogenesis of biological hydroxyapatite-based bone grafting materials by ion doping and osteoimmunomodulation. Biomed Mater Eng 2022; 34:195-213. [DOI: 10.3233/bme-221437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Biological hydroxyapatite (BHA)-based bone grafting materials have been widely used for bone regeneration in implant surgery. Much effort has been made in the improvement of their osteogenic property as it remains unsatisfactory for clinical use. Osteoimmunomodulation plays a significant role in bone regeneration, which is highly related to active inorganic ions. Therefore, attempts have been made to obtain osteoimmunomodulatory BHA-based bone grafting materials with optimized osteogenic property by ion doping. OBJECTIVE: To summarize and discuss the active inorganic ions doped into BHA and their effects on BHA-based bone grafting materials. METHOD: A literature search was performed in databases including Google Scholar, Web of Science and PubMed, with the elementary keywords of “ion doped” and “biological hydroxyapatite”, as well as several supplementary keywords. All document types were included in this search. The searching period and language were not limited and kept updated to 2022. RESULTS: A total of 32 articles were finally included, of which 32 discussed the physiochemical properties of BHA-based biomaterials, while 12 investigated their biological features in vitro, and only three examined their biological performance in vivo. Various ions were doped into BHA, including fluoride, zinc, magnesium and lithium. Such ions improved the biological performance of BHA-based biomaterials, which was attributed to their osteoimmunomodulatory effect. CONCLUSION: The doping of active inorganic ions is a reliable strategy to endow BHA-based biomaterials with osteoimmunomodulatory property and promote bone regeneration. Further studies are still in need to explore more ions and their effects in the crosstalk between the skeletal and immune systems.
Collapse
Affiliation(s)
| | | | | | - Quan Liu
- , Sun Yat-sen University, , China
| |
Collapse
|
5
|
Zhang X, Wang X, Lee YW, Feng L, Wang B, Pan Q, Meng X, Cao H, Li L, Wang H, Bai S, Kong L, Chow DHK, Qin L, Cui L, Lin S, Li G. Bioactive Scaffold Fabricated by 3D Printing for Enhancing Osteoporotic Bone Regeneration. Bioengineering (Basel) 2022; 9:525. [PMID: 36290493 PMCID: PMC9598556 DOI: 10.3390/bioengineering9100525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 10/27/2023] Open
Abstract
We develop a poly (lactic-co-glycolic acid)/β-calcium phosphate (PLGA/TCP)-based scaffold through a three-dimensional (3D) printing technique incorporating icaritin (ICT), a unique phytomolecule, and secretome derived from human fetal mesenchymal stem cells (HFS), to provide mechanical support and biological cues for stimulating bone defect healing. With the sustained release of ICT and HFS from the composite scaffold, the cell-free scaffold efficiently facilitates the migration of MSCs and promotes bone regeneration at the femoral defect site in the ovariectomy (OVX)-induced osteoporotic rat model. Furthermore, mechanism study results indicate that the combination of ICT and HFS additively activates the Integrin-FAK (focal adhesion kinase)-ERK1/2 (extracellular signal-regulated kinase 1/2)-Runx2 (Runt-related transcription factor 2) axis, which could be linked to the beneficial recruitment of MSCs to the implant and subsequent osteogenesis enhancement. Collectively, the PLGA/TCP/ICT/HFS (P/T/I/S) bioactive scaffold is a promising biomaterial for repairing osteoporotic bone defects, which may have immense implications for their translation to clinical practice.
Collapse
Affiliation(s)
- Xiaoting Zhang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Xinluan Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yuk-wai Lee
- SH Ho Scoliosis Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
- Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong, China
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Lu Feng
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Bin Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Qi Pan
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Xiangbo Meng
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Huijuan Cao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Linlong Li
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Haixing Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Shanshan Bai
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Lingchi Kong
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Dick Ho Kiu Chow
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Liao Cui
- School of Pharmacy and Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, China
| | - Sien Lin
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Gang Li
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| |
Collapse
|
6
|
Zhang J, Wang F, Wu D, Zhao D. Revealing the mechanisms of Weishi Huogu I capsules used for treating osteonecrosis of the femoral head based on systems pharmacology with one mechanism validated with in vitro experiments. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115354. [PMID: 35577160 DOI: 10.1016/j.jep.2022.115354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/22/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Weishi Huogu I (WH I) capsules, developed through traditional Chinese medicine, have been used to treat clinical osteonecrosis of the femoral head (ONFH) for decades. However, the mechanisms have not been systematically studied. AIM OF THE STUDY In this study, the mechanisms of WH I capsules used in treating ONFH were examined through a systems pharmacology strategy, and one mechanism was validated with in vitro experiments. MATERIALS AND METHODS WH I capsules compounds were identified by screening databases; then, a database of the potential active compounds was constructed after absorption, distribution, metabolism and excretion (ADME) evaluation. The compounds were identified through a systematic approach in which the probability of an interaction of every candidate compound with each corresponding target in the DrugBank database was calculated. Gene Ontology (GO) and pathway enrichment analyses of the targets was performed with the Metascape and KEGG DISEASE databases. Then, a compound-target network (C-T) and target-pathway network (T-P) of WH I capsule components were constructed, and network characteristics and related information were used for systematically identifying WH I capsule multicomponent-target interactions. Furthermore, the effects of WH I capsule compounds identified through the systematic pharmacology analysis of the osteogenic transformation of human umbilical mesenchymal stem cells (HUMSCs) were validated in vitro. RESULTS In total, 152 potentially important compounds and 176 associated targets were identified. Twenty-two crucial GO biological process (BP) or pathways were related to ONFH, mainly in regulatory modules regulating blood circulation, modulating growth, and affecting pathological processes closely related to ONFH. Furthermore, the GO enrichment analysis showed that corydine, isorhamnetin, and bicuculline were enriched in "RUNX2 regulates osteoblast differentiation", significantly increased alkaline phosphatase activity and calcium deposition and upregulated runt-related transcription factor 2 mRNA and protein expression and osteocalcin mRNA expression in HUMSCs, suggesting that these compounds promoted the mesenchymal stem cell (MSC) osteogenic transformation. CONCLUSIONS The study showed that the pharmacological mechanisms of WH I capsule attenuation of ONFH mainly involve three therapeutic modules: blood circulation, modulating growth, and regulating pathological processes. The crosstalk between GOBPs/pathways may constitute the basis of the synergistic effects of the compounds in WH I capsules in attenuating ONFH. One of the pharmacological mechanisms in the WH I capsule effect on ONFH involves enhancement of the osteogenic transformation of MSCs, as validated in experiments performed in vitro; however, more mechanisms should be validated in further studies.
Collapse
Affiliation(s)
- Jiaoyue Zhang
- Department of Orthopedics, Affifiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China; Ansteel Group Hospital, Anshan, 114002, China.
| | - Fanli Wang
- Ansteel Group Hospital, Anshan, 114002, China.
| | - Dengbin Wu
- Ansteel Group Hospital, Anshan, 114002, China.
| | - Dewei Zhao
- Department of Orthopedics, Affifiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China.
| |
Collapse
|
7
|
Gao ZR, Feng YZ, Zhao YQ, Zhao J, Zhou YH, Ye Q, Chen Y, Tan L, Zhang SH, Feng Y, Hu J, Ou-Yang ZY, Dusenge MA, Guo Y. Traditional Chinese medicine promotes bone regeneration in bone tissue engineering. Chin Med 2022; 17:86. [PMID: 35858928 PMCID: PMC9297608 DOI: 10.1186/s13020-022-00640-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/30/2022] [Indexed: 11/10/2022] Open
Abstract
Bone tissue engineering (BTE) is a promising method for the repair of difficult-to-heal bone tissue damage by providing three-dimensional structures for cell attachment, proliferation, and differentiation. Traditional Chinese medicine (TCM) has been introduced as an effective global medical program by the World Health Organization, comprising intricate components, and promoting bone regeneration by regulating multiple mechanisms and targets. This study outlines the potential therapeutic capabilities of TCM combined with BTE in bone regeneration. The effective active components promoting bone regeneration can be generally divided into flavonoids, alkaloids, glycosides, terpenoids, and polyphenols, among others. The chemical structures of the monomers, their sources, efficacy, and mechanisms are described. We summarize the use of compounds and medicinal parts of TCM to stimulate bone regeneration. Finally, the limitations and prospects of applying TCM in BTE are introduced, providing a direction for further development of novel and potential TCM.
Collapse
Affiliation(s)
- Zheng-Rong Gao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yun-Zhi Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ya-Qiong Zhao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Jie Zhao
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ying-Hui Zhou
- Department of Endocrinology and Metabolism, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, National Clinical Research Center for Metabolic Disease, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Ye
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yun Chen
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Li Tan
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Shao-Hui Zhang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yao Feng
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Jing Hu
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ze-Yue Ou-Yang
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Marie Aimee Dusenge
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Yue Guo
- Department of Stomatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China.
| |
Collapse
|
8
|
Checinska K, Checinski M, Cholewa-Kowalska K, Sikora M, Chlubek D. Polyphenol-Enriched Composite Bone Regeneration Materials: A Systematic Review of In Vitro Studies. Int J Mol Sci 2022; 23:ijms23137473. [PMID: 35806482 PMCID: PMC9267334 DOI: 10.3390/ijms23137473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 06/27/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
One of the possible alternatives for creating materials for the regeneration of bone tissue supporting comprehensive reconstruction is the incorporation of active substances whose controlled release will improve this process. This systematic review aimed to identify and synthesize in vitro studies that assess the suitability of polyphenolics as additives to polymer-ceramic composite bone regeneration materials. Data on experimental studies in terms of the difference in mechanical, wettability, cytocompatibility, antioxidant and anti-inflammatory properties of materials were synthesized. The obtained numerical data were compiled and analyzed in search of percentage changes of these parameters. The results of the systematic review were based on data from forty-six studies presented in nineteen articles. The addition of polyphenolic compounds to composite materials for bone regeneration improved the cytocompatibility and increased the activity of early markers of osteoblast differentiation, indicating a high osteoinductive potential of the materials. Polyphenolic compounds incorporated into the materials presumably give them high antioxidant properties and reduce the production of reactive oxygen species in macrophage cells, implying anti-inflammatory activity. The evidence was limited by the number of missing data and the heterogeneity of the data.
Collapse
Affiliation(s)
- Kamila Checinska
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Cracow, Poland;
- Correspondence: (K.C.); (D.C.)
| | - Maciej Checinski
- Department of Oral Surgery, Preventive Medicine Center, Komorowskiego 12, 30-106 Cracow, Poland;
| | - Katarzyna Cholewa-Kowalska
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Cracow, Poland;
| | - Maciej Sikora
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland;
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
- Correspondence: (K.C.); (D.C.)
| |
Collapse
|
9
|
Gao L, Zhang SQ. Antiosteoporosis Effects, Pharmacokinetics, and Drug Delivery Systems of Icaritin: Advances and Prospects. Pharmaceuticals (Basel) 2022; 15:397. [PMID: 35455393 PMCID: PMC9032325 DOI: 10.3390/ph15040397] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/10/2022] [Accepted: 03/22/2022] [Indexed: 12/11/2022] Open
Abstract
Osteoporosis is a systemic skeletal disorder affecting over 200 million people worldwide and contributes dramatically to global healthcare costs. Available anti-osteoporotic drug treatments including hormone replacement therapy, anabolic agents, and bisphosphonates often cause adverse events which limit their long-term use. Therefore, the application of natural products has been proposed as an alternative therapy strategy. Icaritin (ICT) is not only an enzyme-hydrolyzed product of icariin but also an intestinal metabolite of eight major flavonoids of the traditional Chinese medicinal plant Epimedium with extensive pharmacological activities, such as strengthening the kidney and reinforcing the bone. ICT displays several therapeutic effects, including osteoporosis prevention, neuroprotection, antitumor, cardiovascular protection, anti-inflammation, and immune-protective effect. ICT inhibits bone resorption activity of osteoclasts and stimulates osteogenic differentiation and maturation of bone marrow stromal progenitor cells and osteoblasts. As for the mechanisms of effect, ICT regulates relative activities of two transcription factors Runx2 and PPARγ, determines the differentiation of MSCs into osteoblasts, increases mRNA expression of OPG, and inhibits mRNA expression of RANKL. Poor water solubility, high lipophilicity, and unfavorable pharmacokinetic properties of ICT restrict its anti-osteoporotic effects, and novel drug delivery systems are explored to overcome intrinsic limitations of ICT. The paper focuses on osteogenic effects and mechanisms, pharmacokinetics and delivery systems of ICT, and highlights bone-targeting strategies to concentrate ICT on the ideal specific site of bone. ICT is a promising potential novel therapeutic agent for osteoporosis.
Collapse
Affiliation(s)
- Lifang Gao
- School of Public Health, Capital Medical University, 10 Youanmenwai Xitiao, Beijing 100069, China;
| | - Shuang-Qing Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Beijing 100050, China
| |
Collapse
|
10
|
Andrés Sastre E, Nossin Y, Jansen I, Kops N, Intini C, Witte-Bouma J, van Rietbergen B, Hofmann S, Ridwan Y, Gleeson JP, O'Brien FJ, Wolvius EB, van Osch GJVM, Farrell E. A new semi-orthotopic bone defect model for cell and biomaterial testing in regenerative medicine. Biomaterials 2021; 279:121187. [PMID: 34678648 DOI: 10.1016/j.biomaterials.2021.121187] [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: 07/19/2021] [Revised: 10/08/2021] [Accepted: 10/14/2021] [Indexed: 02/07/2023]
Abstract
In recent decades, an increasing number of tissue engineered bone grafts have been developed. However, expensive and laborious screenings in vivo are necessary to assess the safety and efficacy of their formulations. Rodents are the first choice for initial in vivo screens but their size limits the dimensions and number of the bone grafts that can be tested in orthotopic locations. Here, we report the development of a refined murine subcutaneous model for semi-orthotopic bone formation that allows the testing of up to four grafts per mouse one order of magnitude greater in volume than currently possible in mice. Crucially, these defects are also "critical size" and unable to heal within the timeframe of the study without intervention. The model is based on four bovine bone implants, ring-shaped, where the bone healing potential of distinct grafts can be evaluated in vivo. In this study we demonstrate that promotion and prevention of ossification can be assessed in our model. For this, we used a semi-automatic algorithm for longitudinal micro-CT image registration followed by histological analyses. Taken together, our data supports that this model is suitable as a platform for the real-time screening of bone formation, and provides the possibility to study bone resorption, osseointegration and vascularisation.
Collapse
Affiliation(s)
- E Andrés Sastre
- Department of Oral and Maxillofacial Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Y Nossin
- Department of Otorhinolaryngology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - I Jansen
- Department of Oral and Maxillofacial Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands; Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - N Kops
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - C Intini
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - J Witte-Bouma
- Department of Oral and Maxillofacial Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - B van Rietbergen
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Department of Orthopaedic Surgery, Research School CAPHRI, Maastricht University Medical Center, Maastricht, the Netherlands
| | - S Hofmann
- Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Y Ridwan
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - J P Gleeson
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - F J O'Brien
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland; SFI Advanced Materials and Bioengineering Research (AMBER) Center, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin, Ireland; Trinity Center for Biomedical Engineering, Trinity College Dublin, Dublin, Ireland
| | - E B Wolvius
- Department of Oral and Maxillofacial Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - G J V M van Osch
- Department of Otorhinolaryngology, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Delft, the Netherlands
| | - E Farrell
- Department of Oral and Maxillofacial Surgery, Erasmus University Medical Center, Rotterdam, the Netherlands.
| |
Collapse
|
11
|
Mi J, Xu J, Yao H, Li X, Tong W, Li Y, Dai B, He X, Chow DHK, Li G, Lui KO, Zhao J, Qin L. Calcitonin Gene-Related Peptide Enhances Distraction Osteogenesis by Increasing Angiogenesis. Tissue Eng Part A 2020; 27:87-102. [PMID: 32375579 DOI: 10.1089/ten.tea.2020.0009] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Distraction osteogenesis (DO) is a well-established surgical technique for treating bone defect and limb lengthening. The major drawback of DO is the long treatment period as the external fixator has to be kept in place until consolidation is completed. Calcitonin gene-related peptide (CGRP) has been reported to promote angiogenesis by affecting endothelial progenitor cells (EPCs) in limb ischemia and wound healing. Thus, the goal of this study was to evaluate the angiogenic effect of exogenous CGRP on bone regeneration in a rat DO model. Exogenous CGRP was directly injected into the bone defect after each cycle of distraction in vivo. Microcomputed tomography, biomechanical test, and histological analysis were performed to assess the new bone formation. Angiography and immunofluorescence were performed to assess the formation of blood vessels. CD31+CD144+ EPCs in the bone defect were quantified with flow cytometry. In in vitro study, bone marrow stem cells (BMSCs) were used to investigate the effect of CGRP on EPCs production during endothelial differentiation. Our results showed that CGRP significantly promoted bone regeneration and vessel formation after consolidation. CGRP significantly increased the fraction of CD31+CD144+EPCs and the capillary density in the bone defect at the end of distraction phase. CGRP increased EPC population in the endothelial differentiation of BMSCs in vitro by activating PI3K/AKT signaling pathway. Furthermore, differentiated EPCs rapidly assembled into tube-like structures and promoted osteogenic differentiation of BMSCs. In conclusion, CGRP increased EPC population and promoted blood vessel formation and bone regeneration at the defect region in a DO model. Impact statement Distraction osteogenesis (DO) is a well-established surgical technique for limb lengthening and bone defect. The disadvantage of this technique is that external fixator is needed to be kept in place for about 12 months. This may result in increased risk of infection, financial burden, and negative psychological impacts. In this study, we have injected calcitonin gene-related peptide (CGRP) into the defect region after distraction and found that CGRP enhanced vessel formation and bone regeneration in a rat DO model. This suggests that a controlled delivery system for CGRP could be developed and applied clinically for accelerating bone regeneration in patients with DO.
Collapse
Affiliation(s)
- Jie Mi
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiankun Xu
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Hao Yao
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xisheng Li
- Department of Chemical Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wenxue Tong
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Ye Li
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Bingyang Dai
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xuan He
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Dick Ho Kiu Chow
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Gang Li
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Kathy O Lui
- Department of Chemical Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jie Zhao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Innovative Orthopedic Biomaterial and Drug Translational Research Laboratory, Department of Orthopedics & Traumatology, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
12
|
Deng Z, Chen J, Lin B, Li J, Wang H, Wang D, Pang L, Zeng X, Wang H, Zhang Y. A novel 3D printed bioactive scaffolds with enhanced osteogenic inspired by ancient Chinese medicine HYSA for bone repair. Exp Cell Res 2020; 394:112139. [DOI: 10.1016/j.yexcr.2020.112139] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/13/2020] [Accepted: 06/07/2020] [Indexed: 12/13/2022]
|
13
|
Dong GC, Ma TY, Li CH, Chi CY, Su CM, Huang CL, Wang YH, Lee TM. A study of Drynaria fortunei in modulation of BMP–2 signalling by bone tissue engineering. Turk J Med Sci 2020; 50:1444-1453. [PMID: 32252500 PMCID: PMC7491309 DOI: 10.3906/sag-2001-148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/03/2020] [Indexed: 11/06/2022] Open
Abstract
Background/aim Drynaria fortunei
(Gusuibu; GSB) is a popular traditional Chinese medicine used for bone repair. An increasing number of studies have reported that GSB induces osteogenic differentiation in bone marrow mesenchymal stem cells (BMSCs). These results provide insight into the application of GSB for bone tissue engineering techniques used to repair large bone defects. However, few studies have described the molecular mechanisms of GSB. Materials and methods In the present study, the effects of GSB and naringin, a marker compound, on the binding of BMP-2 to BMPR and BMP-2-derived signal transduction were investigated using surface plasmon resonance (SPR) and coculturing with BMPR-expressed cell line, C2C12, respectively. Furthermore, naringin was also used to prepare naringin contained scaffolds for bone tissue engineering. The physical and chemical properties of these scaffolds were analysed using scanning electron microscopy (SEM) and highperformance liquid chromatography (HPLC). These scaffolds were cocultured with rabbit BMSCs in vitro and implanted into rabbit calvarial defects for bone repair assessment. Results The results showed that GSB and naringin affect the binding of BMP and BMPR in SPR experiments. GSB is a subtle BMP modulator that simultaneously inhibits the binding of BMP-2 to BMPR-1A and enhances its binding to BMPR-1B. In contrast, naringin inhibited BMP-2 binding to BMPR-1A. In vitro studies involving the phosphorylation of signals downstream of BMPR and Smad showed that GSB and naringin affected stem cell differentiation by inhibiting BMPR-1A signalling. When using GSB for bone tissue engineering, naringin exhibited a higher capacity for slow and gradual release from the scaffold, which promotes bone formation via osteoinduction. Moreover, control and naringin scaffolds were implanted into rabbit calvarial defects for 4 weeks, and naringin enhanced bone regeneration in vivo significantly. Conclusion GSB and its marker compound (naringin) could inhibit the binding of BMP-2 and BMPR-1A to control cell differentiation by blocked BMPR-1A signalling and enhanced BMPR-1B signalling. GSB and naringin could be good natural BMP regulators for bone tissue engineering.
Collapse
Affiliation(s)
- Guo-Chung Dong
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Tzn-Yuan Ma
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chi-Han Li
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chih-Ying Chi
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chao-Ming Su
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chih-Ling Huang
- Center for Fundamental Science, Kaohsiung Medical University Kaohsiung, Taiwan
| | - Yan-Hsiung Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzer-Ming Lee
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| |
Collapse
|
14
|
Shi GS, Li YY, Luo YP, Jin JF, Sun YX, Zheng LZ, Lai YX, Li L, Fu GH, Qin L, Chen SH. Bioactive PLGA/tricalcium phosphate scaffolds incorporating phytomolecule icaritin developed for calvarial defect repair in rat model. J Orthop Translat 2020; 24:112-120. [PMID: 32775203 PMCID: PMC7390784 DOI: 10.1016/j.jot.2020.05.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/18/2020] [Accepted: 05/29/2020] [Indexed: 02/09/2023] Open
Abstract
Background/objectives For treatment of large bone defects challenging in orthopaedic clinics, bone graft substitutes are commonly used for the majority of surgeons. It would be proposed in the current study that our bioactive scaffolds could additionally serve as a local delivery system for therapeutic small molecule agents capable of providing support to enhance biological bone repair. Methods In this study, composite scaffolds made of poly (lactic-co-glycolic acid) (PLGA) and tricalcium phosphate (TCP) named by P/T was fabricated by a low-temperature rapid prototyping technique. For optimizing the scaffolds, the phytomolecule icaritin (ICT) was incorporated into P/T scaffolds called P/T/ICT. The osteogenic efficacies of the two groups of scaffolds were compared in a successfully established calvarial defect model in rats. Bone regeneration was evaluated by X-ray, micro-computerised tomography (micro-CT), and histology at weeks 4 and/or 8 post-implantation. In vitro induction of osteogenesis and osteoclastogenesis was established for identification of differentiation potentials evoked by icaritin in primary cultured precursor cells. Results The results of radiographies and decalcified histology demonstrated more area and volume fractions of newly formed bone within bone defect sites implanted with P/T/ICT scaffold than that with P/T scaffold. Undecalcified histological results presented more osteoid and mineralized bone tissues, and also more active bone remodeling in P/T/ICT group than that in P/T group. The results of histological staining in osteoclast-like cells and newly formed vessels indicated favorable biocompatibility, rapid bioresorption and more new vessel growth in P/T/ICT scaffolds in contrast to P/T scaffolds. Based on in vitro induction, the results presented that icaritin could significantly facilitate osteogenic differentiation, while suppressed adipogenic differentiation. Meanwhile, icaritin demonstrated remarkable inhibition of osteoclastogenic differentiation. Conclusion The finding that P/T/ICT composite scaffold can enhance bone regeneration in calvarial bone defects through facilitating effective bone formation and restraining excessive bone resorption. The translational potential of this article The osteogenic bioactivity of icaritin facilitated PLGA/TCP/icartin composite scaffold to exert significant bone regeneration in calvarial defects in rat model. It might form an optimized foundation for potential clinical validation in bone defects application.
Collapse
Affiliation(s)
- Guang-Sen Shi
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Ying-Ying Li
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Ya-Ping Luo
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jian-Feng Jin
- Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou, PR China
| | - Yu-Xin Sun
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li-Zhen Zheng
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yu-Xiao Lai
- Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Long Li
- Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Guo-Hui Fu
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Ling Qin
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China.,Translational Medicine R&D Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Shi-Hui Chen
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.,Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
15
|
Geven MA, Grijpma DW. Additive manufacturing of composite structures for the restoration of bone tissue. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/2399-7532/ab201f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
16
|
Feng Q, Xu J, Zhang K, Yao H, Zheng N, Zheng L, Wang J, Wei K, Xiao X, Qin L, Bian L. Dynamic and Cell-Infiltratable Hydrogels as Injectable Carrier of Therapeutic Cells and Drugs for Treating Challenging Bone Defects. ACS CENTRAL SCIENCE 2019; 5:440-450. [PMID: 30937371 PMCID: PMC6439455 DOI: 10.1021/acscentsci.8b00764] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Indexed: 05/24/2023]
Abstract
Biopolymeric hydrogels have been widely used as carriers of therapeutic cells and drugs for biomedical applications. However, most conventional hydrogels cannot be injected after gelation and do not support the infiltration of cells because of the static nature of their network structure. Here, we develop unique cell-infiltratable and injectable (Ci-I) gelatin hydrogels, which are physically cross-linked by weak and highly dynamic host-guest complexations and are further reinforced by limited chemical cross-linking for enhanced stability, and then demonstrate the outstanding properties of these Ci-I gelatin hydrogels. The highly dynamic network of Ci-I hydrogels allows injection of prefabricated hydrogels with encapsulated cells and drugs, thereby simplifying administration during surgery. Furthermore, the reversible nature of the weak host-guest cross-links enables infiltration and migration of external cells into Ci-I gelatin hydrogels, thereby promoting the participation of endogenous cells in the healing process. Our findings show that Ci-I hydrogels can mediate sustained delivery of small hydrophobic molecular drugs (e.g., icaritin) to boost differentiation of stem cells while avoiding the adverse effects (e.g., in treatment of bone necrosis) associated with high drug dosage. The injection of Ci-I hydrogels encapsulating mesenchymal stem cells (MSCs) and drug (icaritin) efficiently prevented the decrease in bone mineral density (BMD) and promoted in situ bone regeneration in an animal model of steroid-associated osteonecrosis (SAON) of the hip by creating the microenvironment favoring the osteogenic differentiation of MSCs, including the recruited endogenous cells. We believe that this is the first demonstration on applying injectable hydrogels as effective carriers of therapeutic cargo for treating dysfunctions in deep and enclosed anatomical sites via a minimally invasive procedure.
Collapse
Affiliation(s)
- Qian Feng
- Fujian
Provincial Key Laboratory of Advanced Materials Oriented Chemical
Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
| | - Jiankun Xu
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Kunyu Zhang
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
| | - Hao Yao
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Nianye Zheng
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Lizhen Zheng
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Jiali Wang
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Kongchang Wei
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
- Laboratory
for Biomimetic Membranes and Textiles, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 9014 St., Gallen, Switzerland
| | - Xiufeng Xiao
- Fujian
Provincial Key Laboratory of Advanced Materials Oriented Chemical
Engineering, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
| | - Ling Qin
- Department
of Orthopaedic and Traumatology and Innovative Orthopaedic Biomaterial
and Drug Translational Research Laboratory of Li Ka Shing Institute
of Health, Faculty of Medicine, The Chinese
University of Hong Kong, Hong Kong
SAR, China
| | - Liming Bian
- Department
of Biomedical Engineering, The Chinese University
of Hong Kong, William M.W. Mong Building, Shatin, Hong Kong
SAR, China
- Translational
Research Centre of Regenerative Medicine and 3D Printing Technologies
of Guangzhou Medical University, The Third
Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, China
- Shenzhen
Research Institute, The Chinese University
of Hong Kong, Shenzhen 518172, China
- China
Orthopedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China
- Centre
for Novel Biomaterials, The Chinese University
of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
17
|
Association of Traditional Chinese Medicine Therapy with Risk of Total Hip Replacement in Patients with Nontraumatic Osteonecrosis of the Femoral Head: A Population-Based Cohort Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:5870179. [PMID: 30915147 PMCID: PMC6409016 DOI: 10.1155/2019/5870179] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/27/2019] [Accepted: 02/18/2019] [Indexed: 11/18/2022]
Abstract
Background Osteonecrosis of the femoral head (ONFH) contributes to 45% of total hip replacements (THRs) annually in Taiwan. Nontraumatic ONFH (NONFH) is multifactorial; no effective Western medicine is available to delay the disease process. This population-based cohort study investigated the association of traditional Chinese medicine (TCM) therapy with risk of THR in patients with NONFH. Methods This retrospective study was conducted using claims data from all insured residents covered by the National Health Insurance from 2000 to 2010. We enrolled 1,680 newly diagnosed ONFH patients who had not undergone THR, before or within 6 months after diagnosis of ONFH; these patients did not exhibit hip fracture or dislocation before the endpoint. In total, 595 propensity score-matched pairs were selected from among 1,028 TCM users and 652 non-TCM users. The association between TCM use and risk of THR was analyzed using a Cox proportional hazard model. Kaplan-Meier and log rank tests were performed to plot the cumulative incidence of THR. Results The mean follow-up periods were 5.00 years and 3.57 years for TCM and non-TCM cohorts, respectively. Compared to the non-TCM cohort, the TCM cohort had fewer patients undergoing THR surgery (25.4% vs. 18.2%, adjusted hazard ratio: 0.60, p<0.0001). The risk of reduction was noted in the group aged 30–59 years (adjusted hazard ratio: 0.56, p<0.0001), but there was no association with gender nor socioeconomic status. There was a significantly lower cumulative incidence of THR in TCM users (p<0.0001). Shu-Jing-Huo-Xue-Tang and Yan Hu Suo were the most frequently prescribed formula and single herb, respectively. Conclusions NONFH patients using TCM had a lower risk of THR; the risk of reduction was noted in the group aged 30–59 years but was not associated with gender nor socioeconomic status. TCM might be useful in conservative treatment for NONFH.
Collapse
|
18
|
Huang L, Wang X, Cao H, Li L, Chow DHK, Tian L, Wu H, Zhang J, Wang N, Zheng L, Yao X, Yang Z, Qin L. A bone-targeting delivery system carrying osteogenic phytomolecule icaritin prevents osteoporosis in mice. Biomaterials 2018; 182:58-71. [DOI: 10.1016/j.biomaterials.2018.07.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 12/19/2022]
|
19
|
Quantitative determination of residual 1,4-dioxane in three-dimensional printed bone scaffold. J Orthop Translat 2018; 13:58-67. [PMID: 29662792 PMCID: PMC5894362 DOI: 10.1016/j.jot.2017.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/25/2017] [Accepted: 06/19/2017] [Indexed: 01/22/2023] Open
Abstract
Background/Objective A novel porous scaffold poly (lactide-co-glycolide) and tricalcium phosphate (PLGA/TCP) was developed by three-dimensional printing technology for bone defect repair. As a Class 2 solvent with less severe toxicity, content of residual 1,4-dioxane in this newly developed scaffold should be rigorously controlled when it is translated to clinical use. In this study, a headspace gas chromatography-mass spectrometric (HS-GC-MS) method and related testing protocol were developed for quantitative determination of 1,4-dioxane in the PLGA/TCP composite scaffolds. Methods Matrix effect analysis was used to optimise the pretreatment method of the scaffolds. Then, the procedure for testing 1,4-dioxane using HS-GC-MS was set up. The accuracy, precision, and robustness of this newly developed quantitative method were also validated before quantification of 1,4-dioxane in the scaffolds with different drying procedures. Results Dimethyl formamide (DMF) was the optimal solvent for dissolving scaffolds for GC-MS with proper sensitivity and without matrix effect. Then, the optimised procedure was determined as: the scaffolds were dissolved in DMF and kept at 90°C for 40 minutes, separated on a HP-5MS column, and detected by mass spectroscopy. Recovery experiments gave 97.9–100.7% recovery for 1,4-dioxane. The linear range for 1,4-dioxane was determined as 1–40 ppm with linear correlation coefficient ≥ 0.9999. Intraday and interday precision was determined as being within relative standard deviation of below 0.68%. The passable drying procedure was related to lyophilising (−50°C, 50 Pa) the scaffolds for 2 days and drying in vacuum (50 Pa) for 7 days. Conclusion This is the first quantitative method established to test 1,4-dixoane in a novel scaffold. This method was validated with good accuracy and reproducibility, and met the methodological requirements of the Guideline 9101 documented in the Chinese Pharmacopoeia 2015 Edition. The translational potential of this article This quantitative method for determination of residual 1,4-dioxane in the novel scaffolds is a key technical method during its translation into clinical use because this method is an important and indispensable file in the enterprise standard when the porous scaffold is registered as a Class III implanted medical device for bone defect repair, which is used to guarantee the safety of the scaffolds. It is also applied to optimise the drying process of scaffolds and to monitor the quality of scaffolds in the industrialisation process. Further, this method provides references for other solvents quantitative determination in porous scaffolds or materials.
Collapse
|
20
|
Lee H, Uddin MS, Kim YI, Choi S, Park JB. The effects of on osteogenic differentiation and mineralization of human stem cells derived from the gingiva. ACTA ACUST UNITED AC 2017. [DOI: 10.13048/jkm.17036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
21
|
Lai Y, Cao H, Wang X, Chen S, Zhang M, Wang N, Yao Z, Dai Y, Xie X, Zhang P, Yao X, Qin L. Porous composite scaffold incorporating osteogenic phytomolecule icariin for promoting skeletal regeneration in challenging osteonecrotic bone in rabbits. Biomaterials 2017; 153:1-13. [PMID: 29096397 DOI: 10.1016/j.biomaterials.2017.10.025] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 10/07/2017] [Accepted: 10/13/2017] [Indexed: 10/18/2022]
Abstract
Steroid-associated osteonecrosis (SAON) often requires surgical core decompression (CD) in the early stage for removal of necrotic bone to facilitate repair where bone grafts are needed for filling bone defect and avoiding subsequent joint collapse. In this study, we developed a bioactive composite scaffold incorporated with icariin, a unique phytomolecule that can provide structural and mechanical support and facilitate bone regeneration to fill into bone defects after surgical CD in established SAON rabbit model. An innovative low-temperature 3D printing technology was used to fabricate the poly (lactic-co-glycolic acid)/β-calcium phosphate/icariin (PLGA/TCP/Icariin, PTI) scaffold. The cytocompatibility of the PTI scaffold was tested in vitro, and the osteogenesis properties of PTI scaffolds were assessed in vivo in the SAON rabbit models. Our results showed that the fabricated PTI scaffold had a well-designed biomimic structure that was precisely printed to provide increased mechanical support and stable icariin release from the scaffold for bone regeneration. Furthermore, our in vivo study indicated that the PTI scaffold could enhanced the mechanical properties of new bone tissues and improved angiogenesis within the implanted region in SAON rabbit model than those of PLGA/TCP (PT) scaffold. The underlying osteoblastic mechanism was investigated using MC3T3-E1 cells in vitro and revealed that icariin could facilitate MC3T3-E1 cells ingrowth into the PTI scaffold and regulate osteoblastic differentiation. The PTI scaffold exhibited superior biodegradability, biocompatibility, and osteogenic capability compared with those of PT scaffold. In summary, the PTI composite scaffold which incorporated bioactive phyto-compounds is a promising potential strategy for bone tissue engineering and regeneration in patients with challenging SAON.
Collapse
Affiliation(s)
- Yuxiao Lai
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
| | - Huijuan Cao
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Shenzhen Bioactive Materials Engineering Lab for Medicine, Shenzhen 518055, PR China
| | - Xinluan Wang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, PR China.
| | - Shukui Chen
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Ming Zhang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Nan Wang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China
| | - Zhihong Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yi Dai
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xinhui Xie
- Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, PR China; The Department of Orthopedics, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Peng Zhang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Shenzhen Bioactive Materials Engineering Lab for Medicine, Shenzhen 518055, PR China
| | - Xinsheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ling Qin
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China; Musculoskeletal Research Laboratory of Department of Orthopaedics & Traumatology and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| |
Collapse
|
22
|
Ngadiman NHA, Noordin MY, Idris A, Kurniawan D. A review of evolution of electrospun tissue engineering scaffold: From two dimensions to three dimensions. Proc Inst Mech Eng H 2017; 231:597-616. [DOI: 10.1177/0954411917699021] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The potential of electrospinning process to fabricate ultrafine fibers as building blocks for tissue engineering scaffolds is well recognized. The scaffold construct produced by electrospinning process depends on the quality of the fibers. In electrospinning, material selection and parameter setting are among many factors that contribute to the quality of the ultrafine fibers, which eventually determine the performance of the tissue engineering scaffolds. The major challenge of conventional electrospun scaffolds is the nature of electrospinning process which can only produce two-dimensional electrospun mats, hence limiting their applications. Researchers have started to focus on overcoming this limitation by combining electrospinning with other techniques to fabricate three-dimensional scaffold constructs. This article reviews various polymeric materials and their composites/blends that have been successfully electrospun for tissue engineering scaffolds, their mechanical properties, and the various parameters settings that influence the fiber morphology. This review also highlights the secondary processes to electrospinning that have been used to develop three-dimensional tissue engineering scaffolds as well as the steps undertaken to overcome electrospinning limitations.
Collapse
Affiliation(s)
| | - MY Noordin
- Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Ani Idris
- Faculty of Chemical & Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Denni Kurniawan
- Department of Mechanical Engineering, Curtin University, Miri, Malaysia
- Department of Mechanical, Robotics and Energy Engineering, Dongguk University, Seoul, Korea
| |
Collapse
|
23
|
Bidirectional regulation of angiogenesis by phytoestrogens through estrogen receptor-mediated signaling networks. Chin J Nat Med 2017; 14:241-254. [PMID: 27114311 DOI: 10.1016/s1875-5364(16)30024-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Indexed: 01/21/2023]
Abstract
Sex hormone estrogen is one of the most active intrinsic angiogenesis regulators; its therapeutic use has been limited due to its carcinogenic potential. Plant-derived phytoestrogens are attractive alternatives, but reports on their angiogenic activities often lack in-depth analysis and sometimes are controversial. Herein, we report a data-mining study with the existing literature, using IPA system to classify and characterize phytoestrogens based on their angiogenic properties and pharmacological consequences. We found that pro-angiogenic phytoestrogens functioned predominantly as cardiovascular protectors whereas anti-angiogenic phytoestrogens played a role in cancer prevention and therapy. This bidirectional regulation were shown to be target-selective and, for the most part, estrogen-receptor-dependent. The transactivation properties of ERα and ERβ by phytoestrogens were examined in the context of angiogenesis-related gene transcription. ERα and ERβ were shown to signal in opposite ways when complexed with the phytoestrogen for bidirectional regulation of angiogenesis. With ERα, phytoestrogen activated or inhibited transcription of some angiogenesis-related genes, resulting in the promotion of angiogenesis, whereas, with ERβ, phytoestrogen regulated transcription of angiogenesis-related genes, resulting in inhibition of angiogenesis. Therefore, the selectivity of phytoestrogen to ERα and ERβ may be critical in the balance of pro- or anti-angiogenesis process.
Collapse
|
24
|
LogithKumar R, KeshavNarayan A, Dhivya S, Chawla A, Saravanan S, Selvamurugan N. A review of chitosan and its derivatives in bone tissue engineering. Carbohydr Polym 2016; 151:172-188. [DOI: 10.1016/j.carbpol.2016.05.049] [Citation(s) in RCA: 328] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/24/2016] [Accepted: 05/15/2016] [Indexed: 10/21/2022]
|
25
|
Che CT, Wong MS, Lam CWK. Natural Products from Chinese Medicines with Potential Benefits to Bone Health. Molecules 2016; 21:239. [PMID: 26927052 PMCID: PMC6274145 DOI: 10.3390/molecules21030239] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 02/03/2016] [Accepted: 02/12/2016] [Indexed: 01/23/2023] Open
Abstract
Osteoporosis is a progressive, systemic bone disorder characterized by loss of bone mass and microstructure, leading to reduced bone strength and increased risk of fracture. It is often associated with reduced quality of life and other medical complications. The disease is common in the aging population, particularly among postmenopausal women and patients who receive long-term steroidal therapy. Given the rapid growth of the aging population, increasing life expectancy, the prevalence of bone loss, and financial burden to the healthcare system and individuals, demand for new therapeutic agents and nutritional supplements for the management and promotion of bone health is pressing. With the advent of global interest in complementary and alternative medicine and natural products, Chinese medicine serves as a viable source to offer benefits for the improvement and maintenance of bone health. This review summarizes the scientific information obtained from recent literatures on the chemical ingredients of Chinese medicinal plants that have been reported to possess osteoprotective and related properties in cell-based and/or animal models. Some of these natural products (or their derivatives) may become promising leads for development into dietary supplements or therapeutic drugs.
Collapse
Affiliation(s)
- Chun-Tao Che
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The University of Illinois at Chicago, Chicago, IL 60612, USA.
| | - Man Sau Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Christopher Wai Kei Lam
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China.
| |
Collapse
|
26
|
Zhang ZK, Li J, Yan DX, Leung WN, Zhang BT. Icaritin Inhibits Collagen Degradation-Related Factors and Facilitates Collagen Accumulation in Atherosclerotic Lesions: A Potential Action for Plaque Stabilization. Int J Mol Sci 2016; 17:E169. [PMID: 26828485 PMCID: PMC4783903 DOI: 10.3390/ijms17020169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/18/2016] [Accepted: 01/21/2016] [Indexed: 01/29/2023] Open
Abstract
Most acute coronary syndromes result from rupture of vulnerable atherosclerotic plaques. The collagen content of plaques may critically affect plaque stability. This study tested whether Icaritin (ICT), an intestinal metabolite of Epimedium-derived flavonoids, could alter the collagen synthesis/degradation balance in atherosclerotic lesions. Rabbits were fed with an atherogenic diet for four months. Oral administration of ICT (10 mg·kg(-1)·day(-1)) was started after two months of an atherogenic diet and lasted for two months. The collagen degradation-related parameters, including macrophages accumulation, content and activity of interstitial collagenase-1 (MMP-1), and the collagen synthesis-related parameters, including amount and distribution of smooth muscle cells (SMC) and collagen mRNA/protein levels, were evaluated in the aorta. ICT reduced plasma lipid levels, inhibited macrophage accumulation, lowered MMP-1 mRNA and protein expression, and suppressed proteolytic activity of pro-MMP-1 and MMP-1 in the aorta. ICT changed the distribution of the SMCs towards the fibrous cap of lesions without increasing the amount of SMCs. Higher collagen protein content in lesions and aorta homogenates was observed with ICT treatment compared with the atherogenic diet only, without altered collagen mRNA level. These results suggest that ICT could inhibit the collagen degradation-related factors and facilitate collagen accumulation in atherosclerotic lesions, indicating a new potential of ICT in atherosclerotic plaques.
Collapse
Affiliation(s)
- Zong-Kang Zhang
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China.
| | - Jie Li
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China.
| | - De-Xin Yan
- Shanghai Clinical Center of Cardiovascular and Cerebrovascular Diseases in Traditional Chinese Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China.
| | - Wing-Nang Leung
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China.
| | - Bao-Ting Zhang
- School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China.
| |
Collapse
|
27
|
Jiang J, Zhao BJ, Song J, Jia XB. Pharmacology and Clinical Application of Plants in Epimedium L. CHINESE HERBAL MEDICINES 2016. [DOI: 10.1016/s1674-6384(16)60003-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
28
|
Uskoković V. When 1+1>2: Nanostructured composites for hard tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 57:434-51. [PMID: 26354283 PMCID: PMC4567690 DOI: 10.1016/j.msec.2015.07.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 04/15/2015] [Accepted: 07/23/2015] [Indexed: 12/20/2022]
Abstract
Multicomponent, synergistic and multifunctional nanostructures have taken over the spotlight in the realm of biomedical nanotechnologies. The most prospective materials for bone regeneration today are almost exclusively composites comprising two or more components that compensate for the shortcomings of each one of them alone. This is quite natural in view of the fact that all hard tissues in the human body, except perhaps the tooth enamel, are composite nanostructures. This review article highlights some of the most prospective breakthroughs made in this research direction, with the hard tissues in main focus being those comprising bone, tooth cementum, dentin and enamel. The major obstacles to creating collagen/apatite composites modeled after the structure of bone are mentioned, including the immunogenicity of xenogeneic collagen and continuously failing attempts to replicate the biomineralization process in vitro. Composites comprising a polymeric component and calcium phosphate are discussed in light of their ability to emulate the soft/hard composite structure of bone. Hard tissue engineering composites created using hard material components other than calcium phosphates, including silica, metals and several types of nanotubes, are also discoursed on, alongside additional components deliverable using these materials, such as cells, growth factors, peptides, antibiotics, antiresorptive and anabolic agents, pharmacokinetic conjugates and various cell-specific targeting moieties. It is concluded that a variety of hard tissue structures in the body necessitates a similar variety of biomaterials for their regeneration. The ongoing development of nanocomposites for bone restoration will result in smart, theranostic materials, capable of acting therapeutically in direct feedback with the outcome of in situ disease monitoring at the cellular and subcellular scales. Progress in this research direction is expected to take us to the next generation of biomaterials, designed with the purpose of fulfilling Daedalus' dream - not restoring the tissues, but rather augmenting them.
Collapse
Affiliation(s)
- Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, IL, USA.
| |
Collapse
|
29
|
Chen XJ, Tang ZH, Li XW, Xie CX, Lu JJ, Wang YT. Chemical Constituents, Quality Control, and Bioactivity of Epimedii Folium (Yinyanghuo). THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:783-834. [DOI: 10.1142/s0192415x15500494] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Epimedii Folium (Yinyanghuo in Chinese) is one of the most commonly used traditional Chinese medicines. Its main active components are flavonoids, which exhibit multiple biological activities, such as promotion of bone formation and sexual function, protection of the nervous system, and prevention of cardiovascular diseases. Flavonoids also show anti-inflammatory and anticancer effects. Various effective methods, including genetic and chemical approaches, have been developed for the quality control of Yinyanghuo. In this review, the studies conducted in the last decade about the chemical constituents, quality control, and bioactivity of Yinyanghuo are summarized and discussed.
Collapse
Affiliation(s)
- Xiao-Jia Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Zheng-Hai Tang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Xi-Wen Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Cai-Xiang Xie
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Yi-Tao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| |
Collapse
|
30
|
Wang J, Witte F, Xi T, Zheng Y, Yang K, Yang Y, Zhao D, Meng J, Li Y, Li W, Chan K, Qin L. Recommendation for modifying current cytotoxicity testing standards for biodegradable magnesium-based materials. Acta Biomater 2015; 21:237-49. [PMID: 25890098 DOI: 10.1016/j.actbio.2015.04.011] [Citation(s) in RCA: 228] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 03/20/2015] [Accepted: 04/02/2015] [Indexed: 11/27/2022]
Abstract
As one of the most promising medical metal implants, magnesium (Mg) or its alloys have shown significant advantages over other candidates attributed to not only their excellent biodegradability and suitable mechanical properties but also their osteopromotive effects for bone applications. Prior to approval mandated by the governmental regulatory body, the access to the medical market for Mg-based implants requires a series of testing for assurance of their safety and efficacy via preclinical evaluations and clinical tests including phase 1 and 2 evaluations, and phase 3 of multi-center randomized double blind and placebo-controlled clinical trials. However, as the most widely used protocols for biosafety evaluation of medical devices, current ISO 10993 standards should be carefully reevaluated when directly applying them to predict potential health risks of degradable Mg based biomaterials via cytotoxicity tests due to the huge gap between in vitro and in vivo conditions. Therefore, instead of a direct adoption, modification of current ISO standards for in vitro cytotoxicity test is desirable and justified. The differences in sensitivities of cells to in vitro and in vivo Mg ions and the capability of in vivo circulation system to dilute local degradation products were fully considered to propose modification of current ISO standards. This paper recommended a minimal 6 times to a maximal 10 times dilution of extracts for in vitro cytotoxicity test specified in ISO 10993 part 5 for pure Mg developed as potential orthopedic implants based on literature review and our specifically designed in vitro and in vivo tests presented in the study. Our work may contribute to the progress of biodegradable metals involved translational work.
Collapse
Affiliation(s)
- Jiali Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Center for Translational Medicine Research and Development, Institute of Biomedical and Health Engineering, Chinese Academy of Sciences, Shenzhen 518055, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China; Shenzhen Bioactive Materials Engineering Lab for Medicine, Shenzhen 518055, China
| | - Frank Witte
- Julius Wolff Institute and Center for Musculoskeletal Surgery, Berlin-Brandenburg Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Tingfei Xi
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Yuansheng Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Dewei Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian 116622, China
| | - Jian Meng
- China Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Yangde Li
- Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Weirong Li
- Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China
| | - Kaiming Chan
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Center for Translational Medicine Research and Development, Institute of Biomedical and Health Engineering, Chinese Academy of Sciences, Shenzhen 518055, China; Guangdong Innovation Team for Biodegradable Magnesium and Medical Implants, Dongguan E-ande Co. Ltd, Dongguan, China.
| |
Collapse
|
31
|
Li Y, Chen SK, Li L, Qin L, Wang XL, Lai YX. Bone defect animal models for testing efficacy of bone substitute biomaterials. J Orthop Translat 2015; 3:95-104. [PMID: 30035046 PMCID: PMC5982383 DOI: 10.1016/j.jot.2015.05.002] [Citation(s) in RCA: 207] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 05/21/2015] [Accepted: 05/21/2015] [Indexed: 12/25/2022] Open
Abstract
Large bone defects are serious complications that are most commonly caused by extensive trauma, tumour, infection, or congenital musculoskeletal disorders. If nonunion occurs, implantation for repairing bone defects with biomaterials developed as a defect filler, which can promote bone regeneration, is essential. In order to evaluate biomaterials to be developed as bone substitutes for bone defect repair, it is essential to establish clinically relevant in vitro and in vivo testing models for investigating their biocompatibility, mechanical properties, degradation, and interactional with culture medium or host tissues. The results of the in vitro experiment contribute significantly to the evaluation of direct cell response to the substitute biomaterial, and the in vivo tests constitute a step midway between in vitro tests and human clinical trials. Therefore, it is essential to develop or adopt a suitable in vivo bone defect animal model for testing bone substitutes for defect repair. This review aimed at introducing and discussing the most available and commonly used bone defect animal models for testing specific substitute biomaterials. Additionally, we reviewed surgical protocols for establishing relevant preclinical bone defect models with various animal species and the evaluation methodologies of the bone regeneration process after the implantation of bone substitute biomaterials. This review provides an important reference for preclinical studies in translational orthopaedics.
Collapse
Affiliation(s)
- Ye Li
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen, China
| | - Shu-Kui Chen
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Long Li
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ling Qin
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xin-Luan Wang
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yu-Xiao Lai
- Centre for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.,State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, China
| |
Collapse
|
32
|
Qin L, Yao D, Zheng L, Liu WC, Liu Z, Lei M, Huang L, Xie X, Wang X, Chen Y, Yao X, Peng J, Gong H, Griffith JF, Huang Y, Zheng Y, Feng JQ, Liu Y, Chen S, Xiao D, Wang D, Xiong J, Pei D, Zhang P, Pan X, Wang X, Lee KM, Cheng CY. Phytomolecule icaritin incorporated PLGA/TCP scaffold for steroid-associated osteonecrosis: Proof-of-concept for prevention of hip joint collapse in bipedal emus and mechanistic study in quadrupedal rabbits. Biomaterials 2015; 59:125-43. [PMID: 25968462 PMCID: PMC7111223 DOI: 10.1016/j.biomaterials.2015.04.038] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 04/15/2015] [Accepted: 04/21/2015] [Indexed: 12/17/2022]
Abstract
Steroid-associated osteonecrosis (SAON) may lead to joint collapse and subsequent joint replacement. Poly lactic-co-glycolic acid/tricalcium phosphate (P/T) scaffold providing sustained release of icaritin (a metabolite of Epimedium-derived flavonoids) was investigated as a bone defect filler after surgical core-decompression (CD) to prevent femoral head collapse in a bipedal SAON animal model using emu (a large flightless bird). The underlying mechanism on SAON was evaluated using a well-established quadrupedal rabbit model. Fifteen emus were established with SAON, and CD was performed along the femoral neck for the efficacy study. In this CD bone defect, a P/T scaffold with icaritin (P/T/I group) or without icaritin (P/T group) was implanted while no scaffold implantation was used as a control. For the mechanistic study in rabbits, the effects of icaritin and composite scaffolds on bone mesenchymal stem cells (BMSCs) recruitment, osteogenesis, and anti-adipogenesis were evaluated. Our efficacy study showed that P/T/I group had the significantly lowest incidence of femoral head collapse, better preserved cartilage and mechanical properties supported by more new bone formation within the bone tunnel. For the mechanistic study, our in vitro tests suggested that icaritin enhanced the expression of osteogenesis related genes COL1α, osteocalcin, RUNX2, and BMP-2 while inhibited adipogenesis related genes C/EBP-ß, PPAR-γ, and aP2 of rabbit BMSCs. Both P/T and P/T/I scaffolds were demonstrated to recruit BMSCs both in vitro and in vivo but a higher expression of migration related gene VCAM1 was only found in P/T/I group in vitro. In conclusion, both efficacy and mechanistic studies show the potential of a bioactive composite porous P/T scaffold incorporating icaritin to enhance bone defect repair after surgical CD and prevent femoral head collapse in a bipedal SAON emu model.
Collapse
Affiliation(s)
- Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China; Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China.
| | - Dong Yao
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Lizhen Zheng
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Wai-Ching Liu
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Zhong Liu
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Ming Lei
- Department of Orthopaedics, Peking University Shenzhen Hospital, Shenzhen, PR China
| | - Le Huang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Xinhui Xie
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Xinluan Wang
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China; Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Yang Chen
- Department of Orthopaedics, The Second People's Hospital of Shenzhen, Shenzhen, PR China
| | - Xinsheng Yao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, PR China
| | - Jiang Peng
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China; Orthopaedic Research Institute, Chinese People's Liberation Army General Hospital, Beijing, PR China
| | - He Gong
- School of Biological Science and Medical Engineering, Beihang University, Beijing, PR China
| | - James F Griffith
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Yanping Huang
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, PR China
| | - Yongping Zheng
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, PR China
| | - Jian Q Feng
- Baylor College of Dentistry, Texas A&M University, Dallas, USA
| | - Ying Liu
- Baylor College of Dentistry, Texas A&M University, Dallas, USA
| | - Shihui Chen
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Deming Xiao
- Department of Orthopaedics, Peking University Shenzhen Hospital, Shenzhen, PR China
| | - Daping Wang
- Department of Orthopaedics, The Second People's Hospital of Shenzhen, Shenzhen, PR China
| | - Jiangyi Xiong
- Department of Orthopaedics, The Second People's Hospital of Shenzhen, Shenzhen, PR China
| | - Duanqing Pei
- Guangzhou Institutes of Biomedical and Health, Chinese Academy of Sciences, Guangzhou, PR China
| | - Peng Zhang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PR China
| | - Xiaohua Pan
- Department of Orthopaedics, The First Peoples' Hospital, Shenzhen, PR China
| | - Xiaohong Wang
- Department of Mechanical Engineering, Tsinghua University, Beijing, PR China
| | - Kwong-Man Lee
- Lee Hysan Clinical Research Laboratories, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Chun-Yiu Cheng
- Musculoskeletal Research Laboratory, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| |
Collapse
|
33
|
Xie X, Pei F, Wang H, Tan Z, Yang Z, Kang P. Icariin: A promising osteoinductive compound for repairing bone defect and osteonecrosis. J Biomater Appl 2015; 30:290-9. [PMID: 25876888 DOI: 10.1177/0885328215581551] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Icariin (Ica), the main active component of Herba Epimedii, has been identified as an osteogenic and angiogenic phytomolecule. To develop a bioactive scaffold for enhancing bone repair, Ica was loaded into porous tricalcium phosphate (TCP) scaffolds, and the obtained porous Ica/TCP composites were investigated for treating osteonecrosis of the femoral head (ONFH) in a rabbit model. ONFH was histopathologically confirmed at two weeks after methylprednisolone acetate injection, and the rabbits were treated with porous Ica/TCP scaffolds (group A), porous TCP scaffolds (group B), and autogenous cancellous bone graft (group C). At 12 weeks, the amount of newly formed bone in group A increased significantly compared with that in group B (P = 0.003). The mean histological and radiological scores for repaired defects in group A were significantly higher than those in group B (P = 0.007, P = 0.029, respectively), but were lower than those in group C (P = 0.032, P = 0.046, respectively). In addition, the expression of vascular endothelial growth factor by immunohistochemical testing and real-time polymerase chain reaction in group A was significantly higher than that in group B (P = 0.002, P = 0.001, respectively), but was lower than that in group C (P = 0.034, P = 0.005, respectively). Therefore, Ica can be a promising osteogenic and angiogenic compound for repairing bone defects and preventing the collapse of the femoral head in ONFH.
Collapse
Affiliation(s)
- Xiaowei Xie
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Fuxing Pei
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Haoyang Wang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Zhen Tan
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Zhouyuan Yang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Pengde Kang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| |
Collapse
|
34
|
Eglin D, Alini M, de Bruijn J, Gautrot J, Grijpma DW, Kamer L, Lai Y, Lu S, Peijs T, Peng J, Tang TT, Wang X, Wang X, Richards RG, Qin L. The RAPIDOS project-European and Chinese collaborative research on biomaterials. J Orthop Translat 2015; 3:78-84. [PMID: 30035043 PMCID: PMC5982356 DOI: 10.1016/j.jot.2015.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 01/28/2015] [Accepted: 02/10/2015] [Indexed: 11/15/2022] Open
Abstract
The research project entitled “rapid prototyping of custom-made bone-forming tissue engineering constructs” (RAPIDOS) is one of the three unique projects that are the result of the first coordinated call for research proposals in biomaterials launched by the European Union Commission and the National Natural Science Foundation of China in 2013 for facilitating bilateral translational research. We formed the RAPIDOS European and Chinese consortium with the aim of applying technologies creating custom-made tissue engineered constructs made of resorbable polymer and calcium phosphate ceramic composites specifically designed by integrating the following: (1) imaging and information technologies, (2) biomaterials and process engineering, and (3) biological and biomedical engineering for novel and truly translational bone repair solutions. Advanced solid free form fabrication technologies, precise stereolithography, and low-temperature rapid prototyping provide the necessary control to create innovative high-resolution medical implants. The use of Chinese medicine extracts, such as the bone anabolic factor icaritin, which has been shown to promote osteogenic differentiation of stem cells and enhance bone healing in vivo, is a safe and technologically relevant alternative to the intensely debated growth factors delivery strategies. This unique initiative driven by a global consortium is expected to accelerate scientific progress in the important field of biomaterials and to foster strong scientific cooperation between China and Europe.
Collapse
Affiliation(s)
- David Eglin
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Mauro Alini
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Joost de Bruijn
- Xpand Biotechnology B.V., Professor Bronkhorstlaan 10, Building 48, 3723 MB Bilthoven, The Netherlands
| | - Julien Gautrot
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Dirk W Grijpma
- MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.,Department of Biomaterials Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.,Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, W.J. Kolff Institute, P.O. Box 196, 9700 AD Groningen, The Netherlands
| | - Lukas Kamer
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Yuxiao Lai
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shenzhen, China
| | - Shibi Lu
- Institute of Orthopaedics of the General Hospital of the People's Liberation Army, 28 Fuxing Road, Beijing, China
| | - Ton Peijs
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaojiu Road, Shanghai 20001, China
| | - Jian Peng
- Institute of Orthopaedics of the General Hospital of the People's Liberation Army, 28 Fuxing Road, Beijing, China
| | - Ting Ting Tang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaojiu Road, Shanghai 20001, China
| | - Xianluan Wang
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shenzhen, China
| | - Xinjiang Wang
- Institute of Orthopaedics of the General Hospital of the People's Liberation Army, 28 Fuxing Road, Beijing, China
| | - R Geoff Richards
- AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Ling Qin
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen University Town, Shenzhen, China.,Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
35
|
Xie XH, Wang XL, Yang HL, Zhao DW, Qin L. Steroid-associated osteonecrosis: Epidemiology, pathophysiology, animal model, prevention, and potential treatments (an overview). J Orthop Translat 2015; 3:58-70. [PMID: 30035041 PMCID: PMC5982361 DOI: 10.1016/j.jot.2014.12.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 11/30/2014] [Accepted: 12/23/2014] [Indexed: 02/08/2023] Open
Abstract
Steroid-associated osteonecrosis (SAON) is a common orthopaedic problem caused by administration of corticosteroids prescribed for many nonorthopaedic medical conditions. We summarised different pathophysiologies of SAON which have adverse effects on multiple systems such as bone marrow stem cells (BMSCs) pool, bone matrix, cell apoptosis, lipid metabolism, and angiogenesis. Different animal models were introduced to mimic the pathophysiology of SAON and for testing the efficacy of both prevention and treatment effects of various chemical drugs, biological, and physical therapies. According to the classification of SAON, several prevention and treatment methods are applied at the different stages of SAON. For the current period, Chinese herbs may also have the potential to prevent the occurrence of SAON. In the future, genetic analysis might also be helpful to effectively predict the development of ON and provide information for personalised prevention and treatment of patients with SAON.
Collapse
Affiliation(s)
- Xin-Hui Xie
- The Department of Orthopedics, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China.,Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,The Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin-Luan Wang
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Translational Medicine Research and Development Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Hui-Lin Yang
- The Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - De-Wei Zhao
- Department of Orthopedics, Zhongshan Hospital of Dalian University, Dalian, China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Translational Medicine Research and Development Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| |
Collapse
|
36
|
Kyllönen L, D’Este M, Alini M, Eglin D. Local drug delivery for enhancing fracture healing in osteoporotic bone. Acta Biomater 2015; 11:412-34. [PMID: 25218339 DOI: 10.1016/j.actbio.2014.09.006] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 08/30/2014] [Accepted: 09/04/2014] [Indexed: 01/08/2023]
Abstract
Fragility fractures can cause significant morbidity and mortality in patients with osteoporosis and inflict a considerable medical and socioeconomic burden. Moreover, treatment of an osteoporotic fracture is challenging due to the decreased strength of the surrounding bone and suboptimal healing capacity, predisposing both to fixation failure and non-union. Whereas a systemic osteoporosis treatment acts slowly, local release of osteogenic agents in osteoporotic fracture would act rapidly to increase bone strength and quality, as well as to reduce the bone healing period and prevent development of a problematic non-union. The identification of agents with potential to stimulate bone formation and improve implant fixation strength in osteoporotic bone has raised hope for the fast augmentation of osteoporotic fractures. Stimulation of bone formation by local delivery of growth factors is an approach already in clinical use for the treatment of non-unions, and could be utilized for osteoporotic fractures as well. Small molecules have also gained ground as stable and inexpensive compounds to enhance bone formation and tackle osteoporosis. The aim of this paper is to present the state of the art on local drug delivery in osteoporotic fractures. Advantages, disadvantages and underlying molecular mechanisms of different active species for local bone healing in osteoporotic bone are discussed. This review also identifies promising new candidate molecules and innovative approaches for the local drug delivery in osteoporotic bone.
Collapse
|
37
|
Zhang X, Xu M, Song L, Wei Y, Lin Y, Liu W, Heng BC, Peng H, Wang Y, Deng X. Effects of compatibility of deproteinized antler cancellous bone with various bioactive factors on their osteogenic potential. Biomaterials 2013; 34:9103-14. [DOI: 10.1016/j.biomaterials.2013.08.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 08/12/2013] [Indexed: 11/26/2022]
|
38
|
Chen S, Lau P, Lei M, Peng J, Tang T, Wang X, Qin L, Kumta SM. Segmental composite porous scaffolds with either osteogenesis or anti-bone resorption properties tested in a rabbit ulna defect model. J Tissue Eng Regen Med 2013; 11:34-43. [PMID: 24668843 DOI: 10.1002/term.1828] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/25/2013] [Accepted: 08/30/2013] [Indexed: 11/11/2022]
Abstract
A functional biomaterial with a therapeutic effect is desirable as an adjuvant therapy to enhance bone formation and prevent local recurrence of bone tumours, especially when the resection margins are not identifiable. In this study, novel composite materials were developed with dual properties of osteopromotion and bone resorption to mimic the tumour inhibition effect, including water-soluble phosphorylated chitosan (P-chitosan) for increasing osteoblasts activity and disodium (1 → 4)-2-deoxy-2-sulphoamino-β-d-glucopyranuronan (S-chitosan) for inhibiting bone resorption activity. First, P-chitosan and S-chitosan were respectively incorporated into two kinds of PLGA/TCP-based scaffold, i.e. PLGA-TCP-P-chitosan (P/T/P-chitosan) and PLGA-TCP-S-chitosan (P/T/S-chitosan) scaffolds. We subsequently tested combined scaffolds of PLGA-TCP-P-S-P-chitosan (P/T/PSP-chitosan) made of P/T/P-chitosan and P/T/S-chitosan to assess their integral effect, on enhancement of bone formation with P/T/P-chitosan and inhibition of tissue regeneration with P/T/S-chitosan, in an established rabbit ulnar bone defect model to imitate bone resection post-bone tumour. To compare bone healing in the defects, the P/T/P-chitosan group was regarded as a bone formation enhancement group, while the P/T group served as a control. Bone mineral density (BMD) in the P/T/P-chitosan and P/T/PSP-chitosan groups were found to be significantly higher than those in the P/T group, while that in the P/T/P-chitosan group was greater than that in the P/T/PSP-chitosan group (p < 0.05). These findings demonstrated that P/T/PSP-chitosan scaffolds possessed more osteogenic potential than the P/T scaffold but less osteogenic effect than the P/T/P-chitosan scaffold, as the S-chitosan component inhibited the activities of osteoblasts for bone formation. These findings implied a dual function of the designed P/T/PSP-chitosan for further preclinical validation and potential applications in the prevention of local recurrence and for enhancing bone repair after bone tumour resection. Copyright © 2013 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Shihui Chen
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China.,Department of Biochemistry and Molecular Biology, Harbin Medical University, People's Republic of China
| | - Poying Lau
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China
| | - Ming Lei
- Department of Orthopaedics, Shenzhen Hospital of Beijing University, Shenzhen, People's Republic of China
| | - Jiang Peng
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China
| | - Tao Tang
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China
| | - Xiaohong Wang
- Department of Materials Science and Engineering, Tsinghua University, Beijing, People's Republic of China
| | - Ling Qin
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China.,Translational Medicine R&D Centre, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, People's Republic of China
| | - Shekhar-Madhukar Kumta
- Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China
| |
Collapse
|
39
|
Zheng LZ, Liu Z, Lei M, Peng J, He YX, Xie XH, Man CW, Huang L, Wang XL, Fong DTP, Xiao DM, Wang DP, Chen Y, Feng JQ, Liu Y, Zhang G, Qin L. Steroid-associated hip joint collapse in bipedal emus. PLoS One 2013; 8:e76797. [PMID: 24204675 PMCID: PMC3804596 DOI: 10.1371/journal.pone.0076797] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 08/28/2013] [Indexed: 12/20/2022] Open
Abstract
In this study we established a bipedal animal model of steroid-associated hip joint collapse in emus for testing potential treatment protocols to be developed for prevention of steroid-associated joint collapse in preclinical settings. Five adult male emus were treated with a steroid-associated osteonecrosis (SAON) induction protocol using combination of pulsed lipopolysaccharide (LPS) and methylprednisolone (MPS). Additional three emus were used as normal control. Post-induction, emu gait was observed, magnetic resonance imaging (MRI) was performed, and blood was collected for routine examination, including testing blood coagulation and lipid metabolism. Emus were sacrificed at week 24 post-induction, bilateral femora were collected for micro-computed tomography (micro-CT) and histological analysis. Asymmetric limping gait and abnormal MRI signals were found in steroid-treated emus. SAON was found in all emus with a joint collapse incidence of 70%. The percentage of neutrophils (Neut %) and parameters on lipid metabolism significantly increased after induction. Micro-CT revealed structure deterioration of subchondral trabecular bone. Histomorphometry showed larger fat cell fraction and size, thinning of subchondral plate and cartilage layer, smaller osteoblast perimeter percentage and less blood vessels distributed at collapsed region in SAON group as compared with the normal controls. Scanning electron microscope (SEM) showed poor mineral matrix and more osteo-lacunae outline in the collapsed region in SAON group. The combination of pulsed LPS and MPS developed in the current study was safe and effective to induce SAON and deterioration of subchondral bone in bipedal emus with subsequent femoral head collapse, a typical clinical feature observed in patients under pulsed steroid treatment. In conclusion, bipedal emus could be used as an effective preclinical experimental model to evaluate potential treatment protocols to be developed for prevention of ON-induced hip joint collapse in patients.
Collapse
Affiliation(s)
- Li-Zhen Zheng
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Zhong Liu
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ming Lei
- Department of Orthopaedics & Traumatology, Shenzhen Second People's Hospital, Shenzhen, China
- Department of Orthopeadics, Shenzhen Hospital of Beijing University, Shenzhen, China
| | - Jiang Peng
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Orthopedic Research Institute, General Hospital of Chinese People's Liberation Army, Beijing, China
| | - Yi-Xin He
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xin-Hui Xie
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Orthopaedics, Zhongda Hospital of Southeast University, Nanjing, China
| | - Chi-Wai Man
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Le Huang
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xin-Luan Wang
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Daniel Tik-Pui Fong
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - De-Ming Xiao
- Department of Orthopaedics & Traumatology, Shenzhen Second People's Hospital, Shenzhen, China
- Department of Orthopeadics, Shenzhen Hospital of Beijing University, Shenzhen, China
| | - Da-Ping Wang
- Department of Orthopaedics & Traumatology, Shenzhen Second People's Hospital, Shenzhen, China
| | - Yang Chen
- Department of Orthopaedics & Traumatology, Shenzhen Second People's Hospital, Shenzhen, China
| | - Jian Q. Feng
- Baylor College of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
| | - Ying Liu
- Baylor College of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
| | - Ge Zhang
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- * E-mail: (LQ); (GZ)
| | - Ling Qin
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- * E-mail: (LQ); (GZ)
| |
Collapse
|
40
|
Wong HL, Siu WS, Shum WT, Gao S, Leung PC, Ko CH. Application of Chinese herbal medicines to revitalize adult stem cells for tissue regeneration. Chin J Integr Med 2012; 18:903-8. [PMID: 23238998 DOI: 10.1007/s11655-012-1293-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Indexed: 12/11/2022]
Abstract
It has been established in the recent several decades that adult stem cells play a crucial role in tissue renewal and regeneration. Adult stem cells locate in certain organs can differentiate into functional entities such as macrophages and bone cells. Hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs) are two of the most important populations of adult stem cells. The application of these stem cells offers a new insight in treating various pathological conditions, through replenishing cells of specific functions by turning on or off the differentiating program within quiescent stem cell niches. Apart from that, they are also capable to travel through the circulation, migrate to injury sites and differentiate to enhance regeneration process. Recently, Chinese medicine (CM) has shown to be potential candidates to activate adult stem cells for tissue regeneration. This review summarizes our own, as well as others' findings concerning the use of Chinese herbal medicine in the regulation processes of adult stem cells differentiation and their movement in tissue repair and rejuvenation. A number of Chinese herbs are used as therapeutic agents and presumably preventive agents on metabolic disorders. In our opinion, the activation of adult stem cells self-regeneration not only provides a novel way to repair tissue damage, but also reduces the use of targeted drug that adversely altering the normal metabolism of human subjects.
Collapse
Affiliation(s)
- Hing-Lok Wong
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | | | | | | | | | | |
Collapse
|
41
|
Wang W, Liu L, Dang X, Ma S, Zhang M, Wang K. The effect of core decompression on local expression of BMP-2, PPAR-γ and bone regeneration in the steroid-induced femoral head osteonecrosis. BMC Musculoskelet Disord 2012; 13:142. [PMID: 22876776 PMCID: PMC3461435 DOI: 10.1186/1471-2474-13-142] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 08/03/2012] [Indexed: 11/27/2022] Open
Abstract
Background To investigate the efficacy of the sole core decompression surgery for the treatment of steroid-induced femoral head osteonecrosis. Methods The model was established by administration of steroids in combination with horse serum. The rabbits with bilateral femoral head osteonecrosis were randomly selected to do the one side of core decompression. The other side was used as the sham. Quantitative RT-PCR and western blot techniques were used to measure the local expression of BMP-2 and PPAR-γ. Bone tissues from control and operation groups were histologically analyzed by H&E staining. The comparisons of the local expression of BMP-2 and PPAR-γ and the bone regeneration were further analyzed between different groups at each time point. Results The expression of BMP-2 in the osteonecrosis femoral head with or without decompression was significantly lower than that in normal animals. BMP-2 expression both showed the decreasing trend with the increased post-operation time. No significant difference of BMP-2 expression occurred between femoral head osteonecrosis with and without decompression. The PPAR-γ expression in the femoral head osteonecrosis with and without core decompression both was significantly higher than that in control. Its expression pattern showed a significantly increased trend with increased the post-operation time. However, there was no significant difference of PPAR-γ expression between the femoral head osteonecrosis with and without decompression at each time point. Histopathological analysis revealed that new trabecular bone and a large number of osteoblasts were observed in the steroid-induced femoral head osteonecrosis with lateral decompression at 8 weeks after surgery, but there still existed trabecular bone fractures and bone necrosis. Conclusions Although decompression takes partial effect in promoting bone regeneration in the early treatment of femoral head osteonecrosis, such an effect does not significantly improve or reverse the pathological changes of femoral head necrosis. Thus, the long-term effect of core decompression in the treatment of steroid-induced femoral head osteonecrosis is not satisfactory.
Collapse
Affiliation(s)
- Wei Wang
- Department of Orthopaedics, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, 710004, People's Republic of China
| | | | | | | | | | | |
Collapse
|