1
|
Yang Y, He H, Miao F, Yu M, Wu X, Liu Y, Fu J, Chen J, Ma L, Chen X, Peng X, You Z, Zhou C. 3D-printed PCL framework assembling ECM-inspired multi-layer mineralized GO-Col-HAp microscaffold for in situ mandibular bone regeneration. J Transl Med 2024; 22:224. [PMID: 38429799 PMCID: PMC10908055 DOI: 10.1186/s12967-024-05020-1] [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: 10/30/2023] [Accepted: 02/22/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND In recent years, natural bone extracellular matrix (ECM)-inspired materials have found widespread application as scaffolds for bone tissue engineering. However, the challenge of creating scaffolds that mimic natural bone ECM's mechanical strength and hierarchical nano-micro-macro structures remains. The purposes of this study were to introduce an innovative bone ECM-inspired scaffold that integrates a 3D-printed framework with hydroxyapatite (HAp) mineralized graphene oxide-collagen (GO-Col) microscaffolds and find its application in the repair of mandibular bone defects. METHODS Initially, a 3D-printed polycaprolactone (PCL) scaffold was designed with cubic disks and square pores to mimic the macrostructure of bone ECM. Subsequently, we developed multi-layer mineralized GO-Col-HAp microscaffolds (MLM GCH) to simulate natural bone ECM's nano- and microstructural features. Systematic in vitro and in vivo experiments were introduced to evaluate the ECM-inspired structure of the scaffold and to explore its effect on cell proliferation and its ability to repair rat bone defects. RESULTS The resultant MLM GCH/PCL composite scaffolds exhibited robust mechanical strength and ample assembly space. Moreover, the ECM-inspired MLM GCH microscaffolds displayed favorable attributes such as water absorption and retention and demonstrated promising cell adsorption, proliferation, and osteogenic differentiation in vitro. The MLM GCH/PCL composite scaffolds exhibited successful bone regeneration within mandibular bone defects in vivo. CONCLUSIONS This study presents a well-conceived strategy for fabricating ECM-inspired scaffolds by integrating 3D-printed PCL frameworks with multilayer mineralized porous microscaffolds, enhancing cell proliferation, osteogenic differentiation, and bone regeneration. This construction approach holds the potential for extension to various other biomaterial types.
Collapse
Affiliation(s)
- Yanqing Yang
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Huan He
- Department of Plastic Surgery, Beijing Hospital of Integrated Traditional Chinese and Western Medicine, Beijing, 100038, China
| | - Fang Miao
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Mingwei Yu
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Xixi Wu
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Yuanhang Liu
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Jie Fu
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Junwei Chen
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Liya Ma
- The Centre of Analysis and Measurement of Wuhan University, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Xiangru Chen
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Ximing Peng
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China
| | - Zhen You
- Division of Biliary Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Chuchao Zhou
- Department of Plastic Surgery, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan, 430060, China.
| |
Collapse
|
2
|
Hu X, Wu H, Yong X, Wang Y, Yang S, Fan D, Xiao Y, Che L, Shi K, Li K, Xiong C, Zhu H, Qian Z. Cyclical endometrial repair and regeneration: Molecular mechanisms, diseases, and therapeutic interventions. MedComm (Beijing) 2023; 4:e425. [PMID: 38045828 PMCID: PMC10691302 DOI: 10.1002/mco2.425] [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: 04/06/2023] [Revised: 10/21/2023] [Accepted: 10/27/2023] [Indexed: 12/05/2023] Open
Abstract
The endometrium is a unique human tissue with an extraordinary ability to undergo a hormone-regulated cycle encompassing shedding, bleeding, scarless repair, and regeneration throughout the female reproductive cycle. The cyclical repair and regeneration of the endometrium manifest as changes in endometrial epithelialization, glandular regeneration, and vascularization. The mechanisms encompass inflammation, coagulation, and fibrinolytic system balance. However, specific conditions such as endometriosis or TCRA treatment can disrupt the process of cyclical endometrial repair and regeneration. There is uncertainty about traditional clinical treatments' efficacy and side effects, and finding new therapeutic interventions is essential. Researchers have made substantial progress in the perspective of regenerative medicine toward maintaining cyclical endometrial repair and regeneration in recent years. Such progress encompasses the integration of biomaterials, tissue-engineered scaffolds, stem cell therapies, and 3D printing. This review analyzes the mechanisms, diseases, and interventions associated with cyclical endometrial repair and regeneration. The review discusses the advantages and disadvantages of the regenerative interventions currently employed in clinical practice. Additionally, it highlights the significant advantages of regenerative medicine in this domain. Finally, we review stem cells and biologics among the available interventions in regenerative medicine, providing insights into future therapeutic strategies.
Collapse
Affiliation(s)
- Xulin Hu
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
- Department of BiotherapyCancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Haoming Wu
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
| | - Xin Yong
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of BiotherapySichuan UniversityChengduSichuanChina
| | - Yao Wang
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
| | - Shuhao Yang
- Department of OrthopedicsThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Diyi Fan
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
| | - Yibo Xiao
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
| | - Lanyu Che
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
| | - Kun Shi
- Department of BiotherapyCancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduSichuanChina
| | - Kainan Li
- Clinical Medical College and Affiliated Hospital of Chengdu UniversityChengdu UniversityChengduSichuanChina
| | | | - Huili Zhu
- Department of Reproductive Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of EducationWest China Second University Hospital of Sichuan UniversityChengduSichuanChina
| | - Zhiyong Qian
- Department of BiotherapyCancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduSichuanChina
| |
Collapse
|