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Janmohammadi M, Doostmohammadi N, Bahraminasab M, Nourbakhsh MS, Arab S, Asgharzade S, Ghanbari A, Satari A. Evaluation of new bone formation in critical-sized rat calvarial defect using 3D printed polycaprolactone/tragacanth gum-bioactive glass composite scaffolds. Int J Biol Macromol 2024; 270:132361. [PMID: 38750857 DOI: 10.1016/j.ijbiomac.2024.132361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/13/2024] [Accepted: 05/11/2024] [Indexed: 05/20/2024]
Abstract
Critical-sized bone defects are a major challenge in reconstructive bone surgery and usually fail to be treated due to limited remaining bone quality and extensive healing time. The combination of 3D-printed scaffolds and bioactive materials is a promising approach for bone tissue regeneration. In this study, 3D-printed alkaline-treated polycaprolactone scaffolds (M-PCL) were fabricated and integrated with tragacanth gum- 45S5 bioactive glass (TG-BG) to treat critical-sized calvarial bone defects in female adult Wistar rats. After a healing period of four and eight weeks, the new bone of blank, M-PCL, and M-PCL/TG-BG groups were harvested and assessed. Micro-computed tomography, histological, biochemical, and biomechanical analyses, gene expression, and bone matrix formation were used to assess bone regeneration. The micro-computed tomography results showed that the M-PCL/TG-BG scaffolds not only induced bone tissue formation within the bone defect but also increased BMD and BV/TV compared to blank and M-PCL groups. According to the histological analysis, there was no evidence of bony union in the calvarial defect regions of blank groups, while in M-PCL/TG-BG groups bony integration and repair were observed. The M-PCL/TG-BG scaffolds promoted the Runx2 and collagen type I expression as compared with blank and M-PCL groups. Besides, the bone regeneration in M-PCL/TG-BG groups correlated with TG-BG incorporation. Moreover, the use of M-PCL/TG-BG scaffolds promoted the biomechanical properties in the bone remodeling process. These data demonstrated that the M-PCL/TG-BG scaffolds serve as a highly promising platform for the development of bone grafts, supporting bone regeneration with bone matrix formation, and osteogenic features. Our results exhibited that the 3D-printed M-PCL/TG-BG scaffolds are a promising strategy for successful bone regeneration.
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Affiliation(s)
- Mahsa Janmohammadi
- Department of Biomedical Engineering, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran
| | - Nesa Doostmohammadi
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Marjan Bahraminasab
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran; Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran.
| | | | - Samaneh Arab
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Samira Asgharzade
- Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran; Department of Molecular Medicine, of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Ali Ghanbari
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Atefeh Satari
- Department of Molecular Medicine, of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Liu X, Gao J, Cui X, Nie S, Wu X, Zhang L, Tang P, Liu J, Li M. Functionalized 3D-Printed PLA Biomimetic Scaffold for Repairing Critical-Size Bone Defects. Bioengineering (Basel) 2023; 10:1019. [PMID: 37760121 PMCID: PMC10526104 DOI: 10.3390/bioengineering10091019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
The treatment of critical-size bone defects remains a complicated clinical challenge. Recently, bone tissue engineering has emerged as a potential therapeutic approach for defect repair. This study examined the biocompatibility and repair efficacy of hydroxyapatite-mineralized bionic polylactic acid (PLA) scaffolds, which were prepared through a combination of 3D printing technology, plasma modification, collagen coating, and hydroxyapatite mineralization coating techniques. Physicochemical analysis, mechanical testing, and in vitro and animal experiments were conducted to elucidate the impact of structural design and microenvironment on osteogenesis. Results indicated that the PLA scaffold exhibited a porosity of 84.1% and a pore size of 350 μm, and its macrostructure was maintained following functionalization modification. The functionalized scaffold demonstrated favorable hydrophilicity and biocompatibility and promoted cell adhesion, proliferation, and the expression of osteogenic genes such as ALP, OPN, Col-1, OCN, and RUNX2. Moreover, the scaffold was able to effectively repair critical-size bone defects in the rabbit radius, suggesting a novel strategy for the treatment of critical-size bone defects.
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Affiliation(s)
- Xiao Liu
- Medical School of Chinese PLA, Beijing 100853, China; (X.L.); (J.G.)
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Jianpeng Gao
- Medical School of Chinese PLA, Beijing 100853, China; (X.L.); (J.G.)
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Xiang Cui
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Shaobo Nie
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Xiaoyong Wu
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Licheng Zhang
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Peifu Tang
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Jianheng Liu
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Ming Li
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
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Hong YR, Kim TH, Park KH, Kang J, Lee K, Park EK, Kwon TG, Lim JO, Oh CW. rhBMP-2-Conjugated Three-Dimensional-Printed Poly(L-lactide) Scaffold is an Effective Bone Substitute. Tissue Eng Regen Med 2022; 20:69-81. [PMID: 36512177 PMCID: PMC9852414 DOI: 10.1007/s13770-022-00506-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 10/30/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Bone growth factors, particularly bone morphogenic protein-2 (BMP-2), are required for effective treatment of significant bone loss. Despite the extensive development of bone substitutes, much remains to be desired for wider application in clinical settings. The currently available bone substitutes cannot sustain prolonged BMP-2 release and are inconvenient to use. In this study, we developed a ready-to-use bone substitute by sequential conjugation of BMP to a three-dimensional (3D) poly(L-lactide) (PLLA) scaffold using novel molecular adhesive materials that reduced the operation time and sustained prolonged BMP release. METHODS A 3D PLLA scaffold was printed and BMP-2 was conjugated with alginate-catechol and collagen. PLLA scaffolds were conjugated with different concentrations of BMP-2 and evaluated for bone regeneration in vitro and in vivo using a mouse calvarial model. The BMP-2 release kinetics were analyzed using ELISA. Histological analysis and micro-CT image analysis were performed to evaluate new bone formation. RESULTS The 3D structure of the PLLA scaffold had a pore size of 400 µm and grid thickness of 187-230 µm. BMP-2 was released in an initial burst, followed by a sustained release for 14 days. Released BMP-2 maintained osteoinductivity in vitro and in vivo. Micro-computed tomography and histological findings demonstrate that the PLLA scaffold conjugated with 2 µg/ml of BMP-2 induced optimal bone regeneration. CONCLUSION The 3D-printed PLLA scaffold conjugated with BMP-2 enhanced bone regeneration, demonstrating its potential as a novel bone substitute.
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Affiliation(s)
- Yu Ri Hong
- Joint Institute for Regenerative Medicine, Kyungpook National University, Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, 41940, Republic of Korea
| | - Tae-Ho Kim
- Joint Institute for Regenerative Medicine, Kyungpook National University, Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, 41940, Republic of Korea
| | - Kyeong-Hyeon Park
- School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
- Department of Orthopedic Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944, Republic of Korea
| | - Jumi Kang
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Kyueui Lee
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea
| | - Tae-Geon Kwon
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea
| | - Jeong Ok Lim
- Joint Institute for Regenerative Medicine, Kyungpook National University, Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, 41940, Republic of Korea.
- School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea.
| | - Chang-Wug Oh
- Department of Orthopedic Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944, Republic of Korea.
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Umezu T, Nakamura S, Sato Y, Kobayashi T, Ito E, Abe T, Kaneko M, Nomura M, Yoshimura A, Oya A, Matsumoto M, Nakamura M, Kanaji A, Miyamoto T. Smad2 and Smad3 expressed in skeletal muscle promote immobilization-induced bone atrophy in mice. Biochem Biophys Res Commun 2021; 582:111-117. [PMID: 34710825 DOI: 10.1016/j.bbrc.2021.10.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 12/23/2022]
Abstract
Skeletal muscle is known to regulate bone homeostasis through muscle-bone interaction, although factors that control this activity remain unclear. Here, we newly established Smad3-flox mice, and then generated skeletal muscle-specific Smad2/Smad3 double conditional knockout mice (DcKO) by crossing Smad3-flox with skeletal muscle-specific Ckmm Cre and Smad2-flox mice. We show that immobilization-induced gastrocnemius muscle atrophy occurring due to sciatic nerve denervation was partially but significantly inhibited in DcKO mice, suggesting that skeletal muscle cell-intrinsic Smad2/3 is required for immobilization-induced muscle atrophy. Also, tibial bone atrophy seen after sciatic nerve denervation was partially but significantly inhibited in DcKO mice. Bone formation rate in wild-type mouse tibia was significantly inhibited by immobilization, but inhibition was abrogated in DcKO mice. We propose that skeletal muscle regulates immobilization-induced bone atrophy via Smad2/3, and Smad2/3 represent potential therapeutic targets to prevent both immobilization-induced bone and muscle atrophy.
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Affiliation(s)
- Taro Umezu
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoshi Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Orthopedic Surgery, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita City, Chiba, 286-8520, Japan
| | - Yuiko Sato
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Advanced Therapy for Musculoskeletal Disorders II, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Musculoskeletal Reconstruction and Regeneration Surgery, Institute for Integrated Sports Medicine, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tami Kobayashi
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Advanced Therapy for Musculoskeletal Disorders II, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Musculoskeletal Reconstruction and Regeneration Surgery, Institute for Integrated Sports Medicine, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Eri Ito
- Institute for Integrated Sports Medicine, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takaya Abe
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Mari Kaneko
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Masatoshi Nomura
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Maidashi 3-1-1, Higashi Ward, Fukuoka, 812-8582, Japan
| | - Akihiko Yoshimura
- Department of Immunology, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Akihito Oya
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Morio Matsumoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Arihiko Kanaji
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Advanced Therapy for Musculoskeletal Disorders II, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Musculoskeletal Reconstruction and Regeneration Surgery, Institute for Integrated Sports Medicine, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan; Department of Orthopedic Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
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Zhao Z, Li G, Ruan H, Chen K, Cai Z, Lu G, Li R, Deng L, Cai M, Cui W. Capturing Magnesium Ions via Microfluidic Hydrogel Microspheres for Promoting Cancellous Bone Regeneration. ACS NANO 2021; 15:13041-13054. [PMID: 34342981 DOI: 10.1021/acsnano.1c02147] [Citation(s) in RCA: 105] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metal ions are important trace elements in the human body, which directly affect the human metabolism and the regeneration of damaged tissues. For instance, the advanced combination of magnesium ions (Mg2+) and bone repair materials make the composite materials have the function of promoting vascular repair and enhancing the adhesion of osteoblasts. Herein, inspired by magnets to attract metals, we utilized the coordination reaction of metal ion ligand to construct a bisphosphonate-functionalized injectable hydrogel microsphere (GelMA-BP-Mg) which could promote cancellous bone reconstruction of osteoporotic bone defect via capturing Mg2+. By grafting bisphosphonate (BP) on GelMA microspheres, GelMA-BP microspheres could produce powerful Mg2+ capture ability and sustained release performance through coordination reaction, while sustained release BP has bone-targeting properties. In the injectable GelMA-BP-Mg microsphere system, the atomic percentage of captured Mg2+ was 0.6%, and the captured Mg2+ could be effectively released for 18 days. These proved that the composite microspheres could effectively capture Mg2+ and provided the basis for the composite microspheres to activate osteoblasts and endothelial cells and inhibit osteoclasts. Both in vivo and in vitro experimental results revealed that the magnet-inspired Mg2+-capturing composite microspheres are beneficial to osteogenesis and angiogenesis by stimulating osteoblasts and endothelial cells while restraining osteoclasts, and ultimately effectively promote cancellous bone regeneration. This study could provide some meaningful conceptions for the treatment of osteoporotic bone defects on the basis of metal ions.
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Affiliation(s)
- Zhenyu Zhao
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No.301 Middle Yanchang Road, Shanghai 200072, People's Republic of China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Second Road, Shanghai 200025, People's Republic of China
| | - Gen Li
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Second Road, Shanghai 200025, People's Republic of China
| | - Huitong Ruan
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Second Road, Shanghai 200025, People's Republic of China
| | - Keyi Chen
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No.301 Middle Yanchang Road, Shanghai 200072, People's Republic of China
| | - Zhengwei Cai
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Second Road, Shanghai 200025, People's Republic of China
| | - Guanghua Lu
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No.301 Middle Yanchang Road, Shanghai 200072, People's Republic of China
| | - Runmin Li
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No.301 Middle Yanchang Road, Shanghai 200072, People's Republic of China
| | - Lianfu Deng
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Second Road, Shanghai 200025, People's Republic of China
| | - Ming Cai
- Department of Orthopaedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, No.301 Middle Yanchang Road, Shanghai 200072, People's Republic of China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Second Road, Shanghai 200025, People's Republic of China
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