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Gao H, Liu Y, Shen H, Guan W, Sun S, Zheng T, Wu L, Yang J, Li G. Biomimetic-inspired piezoelectric ovalbumin/BaTiO 3 scaffolds synergizing with anisotropic topology for modulating Schwann cell and DRG behavior. Int J Biol Macromol 2024; 271:132394. [PMID: 38761905 DOI: 10.1016/j.ijbiomac.2024.132394] [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: 03/06/2024] [Revised: 04/29/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
The treatment of peripheral nerve injury is a clinical challenge that tremendously affected the patients' health and life. Anisotropic topographies and electric cues can simulate the regenerative microenvironment of nerve from physical and biological aspects, which show promising application in nerve regeneration. However, most studies just unilaterally emphasize the effect of sole topological- or electric- cue on nerve regeneration, while rarely considering the synergistic function of both cues simultaneously. In this study, a biomimetic-inspired piezoelectric topological ovalbumin/BaTiO3 scaffold that can provide non-invasive electrical stimulation in situ was constructed by combining piezoelectric BaTiO3 nanoparticles and surface microtopography. The results showed that the incorporation of piezoelectric nanoparticles could improve the mechanical properties of the scaffolds, and the piezoelectric output of the scaffolds after polarization was significantly increased. Biological evaluation revealed that the piezoelectric topological scaffolds could regulate the orientation growth of SCs, promote axon elongation of DRG, and upregulate the genes expression referring to myelination and axon growth, thus rapidly integrated chemical-mechanical signals and transmitted them for effectively promoting neuronal myelination, which was closely related to peripheral neurogenesis. The study suggests that the anisotropic surface topology combined with non-invasive electronic stimulation of the ovalbumin/BaTiO3 scaffolds possess a promising application prospect in the repair and regeneration of peripheral nerve injury.
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Affiliation(s)
- Hongxia Gao
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Yaqiong Liu
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Huoyun Shen
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Wenchao Guan
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Shaolan Sun
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Tiantian Zheng
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Linliang Wu
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China; The People's Hospital of Rugao, Affiliated Hospital of Nantong University, 226599 Nantong, China
| | - Jian Yang
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Guicai Li
- Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, 610065 Chengdu, China; Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, 518055, China.
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Yao L, Sai HV, Shippy T, Li B. Cellular and Transcriptional Response of Human Astrocytes to Hybrid Protein Materials. ACS APPLIED BIO MATERIALS 2024; 7:2887-2898. [PMID: 38632900 DOI: 10.1021/acsabm.3c01266] [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] [Indexed: 04/19/2024]
Abstract
Collagen is a major component of the tissue matrix, and soybean can regulate the tissue immune response. Both materials have been used to fabricate biomaterials for tissue repair. In this study, adult and fetal human astrocytes were grown in a soy protein isolate (SPI)-collagen hybrid gel or on the surface of a cross-linked SPI-collagen membrane. Hybrid materials reduced the cell proliferation rate compared to materials generated by collagen alone. However, the hybrid materials did not significantly change the cell motility compared to the control collagen material. RNA-sequencing (RNA-Seq) analysis showed downregulated genes in the cell cycle pathway, including CCNA2, CCNB1, CCNB2, CCND1, CCND2, and CDK1, which may explain lower cell proliferation in the hybrid material. This study also revealed the downregulation of genes encoding extracellular matrix (ECM) components, including HSPG2, LUM, SDC2, COL4A1, COL4A5, COL4A6, and FN1, as well as genes encoding chemokines, including CCL2, CXCL1, CXCL2, CX3CL1, CXCL3, and LIF, for adult human astrocytes grown on the hybrid membrane compared with those grown on the control collagen membrane. The study explored the cellular and transcriptional responses of human astrocytes to the hybrid material and indicated a potential beneficial function of the material in the application of neural repair.
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Affiliation(s)
- Li Yao
- Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, Kansas 67260, United States
| | - Haneesha Vishwa Sai
- Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, Kansas 67260, United States
| | - Teresa Shippy
- KSU Bioinformatics Center, Division of Biology, Kansas State University, Manhattan, Kansas 66506, United States
| | - Bin Li
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount Street, Wichita, Kansas 67260, United States
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Yao L, Blasi J, Shippy T, Brice R. Transcriptomic analysis reveals the immune response of human microglia to a soy protein and collagen hybrid bioscaffold. Heliyon 2023; 9:e13352. [PMID: 36825181 PMCID: PMC9941947 DOI: 10.1016/j.heliyon.2023.e13352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 01/04/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Inflammatory reactions resulting from spinal cord injury cause significant secondary damage. Microglial cells activate CD4+ T cells via major histocompatibility complex class II (MHCII) molecules. The activated T cells lead to neural tissue damage and demyelination at early stages of spinal cord injury. Control of the inflammatory response may attenuate the injury process. In this study, we compared gene expression in human microglia grown on soy protein-collagen hybrid scaffolds versus collagen scaffolds. Differentially expressed genes (DEGs) were subjected to gene ontology (GO) and pathway enrichment assays. Among down-regulated genes, the "antigen processing and presentation" pathway shows enrichment, primarily due to the down-regulation of MHCII molecules. The DEGs in this pathway show enrichment of binding sites for several transcription factors, with CIITA and IRF8 being the top candidates. The down-regulation of MHCII along with the significant enrichment of the GO term "focal adhesion" among the up-regulated genes helps explain the higher motility of microglial cells on the hybrid scaffold compared with that on the collagen scaffold. Up-regulated genes associated with "focal adhesion" include DNM2, AHNAK, and HYOU1, which have been previously implicated in increased cell motility. Overall, our study indicates that the use of hybrid scaffolds containing soy protein and collagen may modulate the immune response of wounded neural tissue.
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Affiliation(s)
- Li Yao
- Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, United States,Corresponding author.
| | - Jacques Blasi
- Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, United States
| | - Teresa Shippy
- KSU Bioinformatics Center, Division of Biology, Kansas State University, Manhattan, KS 66506, United States
| | - Ryan Brice
- Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, United States
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Wang J, Xiong H, Zhu T, Liu Y, Pan H, Fan C, Zhao X, Lu WW. Bioinspired Multichannel Nerve Guidance Conduit Based on Shape Memory Nanofibers for Potential Application in Peripheral Nerve Repair. ACS NANO 2020; 14:12579-12595. [PMID: 32786254 DOI: 10.1021/acsnano.0c03570] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Repairing peripheral nerve injury, especially long-range defects of thick nerves, is a great challenge in the clinic due to their limited regeneration capability. Most FDA-approved nerve guidance conduits with large hollow lumen are only suitable for short lesions, and their effects are unsatisfactory in repairing long gaps of thick nerves. Multichannel nerve guidance conduits have been shown to offer better regeneration of long nerve defects. However, existing approaches of fabricating multichannel nerve conduits are usually complicated and time-consuming. Inspired by the intelligent responsive shaping process of shape memory polymers, in this study, a self-forming multichannel nerve guidance conduit with topographical cues was constructed based on a degradable shape memory PLATMC polymer. With an initial tubular shape obtained by a high-temperature molding process, the electrospun shape memory nanofibrous mat could be temporarily formed into a planar shape for cell loading to realize the uniform distribution of cells. Then triggered by a physical temperature around 37 °C, it could automatically restore its permanent tubular shape to form the multichannel conduit. This multichannel conduit exhibits better performance in terms of cell growth and the repair of rat sciatic nerve defects. These results reveal that self-forming nerve conduits can be realized based on shape memory polymers; thus, the fabricated bioinspired multichannel nerve guidance conduit has great potential in peripheral nerve regeneration.
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Affiliation(s)
- Jing Wang
- Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Hao Xiong
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Tonghe Zhu
- Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Yuan Liu
- Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Haobo Pan
- Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
- Department of Orthopedics, Shanghai Sixth People's Hospital East Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201306, P.R. China
| | - Xiaoli Zhao
- Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - William Weijia Lu
- Research Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
- Department of Orthopaedic and Traumatology, The University of Hong Kong, Hong Kong 999077, P.R. China
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