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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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Tirinato L, Onesto V, Garcia-Calderon D, Pagliari F, Spadea MF, Seco J, Gentile F. Human lung-cancer-cell radioresistance investigated through 2D network topology. Sci Rep 2022; 12:12980. [PMID: 35902618 PMCID: PMC9334295 DOI: 10.1038/s41598-022-17018-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 07/19/2022] [Indexed: 11/22/2022] Open
Abstract
Radiation therapy (RT) is now considered to be a main component of cancer therapy, alongside surgery, chemotherapy and monoclonal antibody-based immunotherapy. In RT, cancer tissues are exposed to ionizing radiation causing the death of malignant cells and favoring cancer regression. However, the efficiency of RT may be hampered by cell-radioresistance (RR)—that is a feature of tumor cells of withstanding RT. To improve the RT performance, it is decisive developing methods that can help to quantify cell sensitivity to radiation. In acknowledgment of the fact that none of the existing methods to assess RR are based on cell graphs topology, in this work we have examined how 2D cell networks, within a single colony, from different human lung cancer lines (H460, A549 and Calu-1) behave in response to doses of ionizing radiation ranging from 0 to 8 Gy. We measured the structure of resulting cell-graphs using well-assessed networks-analysis metrics, such as the clustering coefficient (cc), the characteristic path length (cpl), and the small world coefficient (SW). Findings of the work illustrate that the clustering characteristics of cell-networks show a marked sensitivity to the dose and cell line. Higher-than-one values of SW coefficient, clue of a discontinuous and inhomogeneous cell spatial layout, are associated to elevated levels of radiation and to a lower radio-resistance of the treated cell line. Results of the work suggest that topology could be used as a quantitative parameter to assess the cell radio-resistance and measure the performance of cancer radiotherapy.
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Affiliation(s)
- Luca Tirinato
- Department of Experimental and Clinical Medicine, Nanotechnology Research Center, University of Magna Graecia, 88100, Catanzaro, Italy.,Division of Biomedical Physics in Radiation Oncology, DKFZ - German Cancer Research Center, Heidelberg, Germany
| | - Valentina Onesto
- Department of Experimental and Clinical Medicine, Nanotechnology Research Center, University of Magna Graecia, 88100, Catanzaro, Italy
| | - Daniel Garcia-Calderon
- Division of Biomedical Physics in Radiation Oncology, DKFZ - German Cancer Research Center, Heidelberg, Germany.,Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany
| | - Francesca Pagliari
- Division of Biomedical Physics in Radiation Oncology, DKFZ - German Cancer Research Center, Heidelberg, Germany
| | - Maria-Francesca Spadea
- Department of Experimental and Clinical Medicine, University of Magna Graecia, 88100, Catanzaro, Italy
| | - Joao Seco
- Division of Biomedical Physics in Radiation Oncology, DKFZ - German Cancer Research Center, Heidelberg, Germany. .,Department of Physics and Astronomy, Heidelberg University, Heidelberg, Germany.
| | - Francesco Gentile
- Department of Experimental and Clinical Medicine, Nanotechnology Research Center, University of Magna Graecia, 88100, Catanzaro, Italy.
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Wan J, Zhou S, Mea HJ, Guo Y, Ku H, Urbina BM. Emerging Roles of Microfluidics in Brain Research: From Cerebral Fluids Manipulation to Brain-on-a-Chip and Neuroelectronic Devices Engineering. Chem Rev 2022; 122:7142-7181. [PMID: 35080375 DOI: 10.1021/acs.chemrev.1c00480] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Remarkable progress made in the past few decades in brain research enables the manipulation of neuronal activity in single neurons and neural circuits and thus allows the decipherment of relations between nervous systems and behavior. The discovery of glymphatic and lymphatic systems in the brain and the recently unveiled tight relations between the gastrointestinal (GI) tract and the central nervous system (CNS) further revolutionize our understanding of brain structures and functions. Fundamental questions about how neurons conduct two-way communications with the gut to establish the gut-brain axis (GBA) and interact with essential brain components such as glial cells and blood vessels to regulate cerebral blood flow (CBF) and cerebrospinal fluid (CSF) in health and disease, however, remain. Microfluidics with unparalleled advantages in the control of fluids at microscale has emerged recently as an effective approach to address these critical questions in brain research. The dynamics of cerebral fluids (i.e., blood and CSF) and novel in vitro brain-on-a-chip models and microfluidic-integrated multifunctional neuroelectronic devices, for example, have been investigated. This review starts with a critical discussion of the current understanding of several key topics in brain research such as neurovascular coupling (NVC), glymphatic pathway, and GBA and then interrogates a wide range of microfluidic-based approaches that have been developed or can be improved to advance our fundamental understanding of brain functions. Last, emerging technologies for structuring microfluidic devices and their implications and future directions in brain research are discussed.
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Affiliation(s)
- Jiandi Wan
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Sitong Zhou
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Hing Jii Mea
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Yaojun Guo
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, United States
| | - Hansol Ku
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, United States
| | - Brianna M Urbina
- Biochemistry, Molecular, Cellular and Developmental Biology Program, University of California, Davis, California 95616, United States
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Wu YX, Ma H, Wang JL, Qu W. Production of chitosan scaffolds by lyophilization or electrospinning: which is better for peripheral nerve regeneration? Neural Regen Res 2021; 16:1093-1098. [PMID: 33269755 PMCID: PMC8224144 DOI: 10.4103/1673-5374.300463] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/24/2020] [Accepted: 09/20/2020] [Indexed: 11/17/2022] Open
Abstract
Both lyophilization and electrospinning are commonly used to make chitosan scaffolds. However, it remains unknown which method is better for cell growth. In this study, we established the following groups: (1) lyophilization group-chitosan scaffolds were prepared by lyophilization method and seeded with Schwann cells from Sprague-Dawley rats aged 3-5 days; (2) electrospinning group-chitosan scaffolds were prepared by electrospinning method and seeded with Schwann cells; (3) control group-Schwann cells were cultured on culture dishes. The growth of Schwann cells was evaluated by immunofluorescence and scanning electron microscopy. Western blot assay was performed to explore the mechanism of Schwann cell growth. Both materials were non-toxic and suitable for the growth of Schwann cells. The pores produced by electrospinning were much smaller than those produced by lyophilization. The proliferation rate and adhesion rate of Schwann cells in the electrospinning group were higher than those in the lyophilization group. Schwann cells cultured on electrospinning scaffolds formed a Bungner band-like structure, and a much greater amount of brain-derived neurotrophic factor was secreted, which can promote the growth of neurons. Our findings show that the chitosan scaffold prepared by the electrospinning method has a nanofiber structure that provides an extracellular matrix that is more favorable for cell-cell interactions. The electrospinning method is more suitable for nerve regeneration than the lyophilization method. This research was approved by the Medical Ethical Committee of Dalian Medical University (approval No. AEE1-2016-045) on March 3, 2016.
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Affiliation(s)
- Yu-Xuan Wu
- Department of Hand Microsurgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Hao Ma
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jian-Lan Wang
- Department of Traditional Chinese Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Wei Qu
- Department of Hand Microsurgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
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Bargavi P, Ramya R, Chitra S, Vijayakumari S, Riju Chandran R, Durgalakshmi D, Rajashree P, Balakumar S. Bioactive, degradable and multi-functional three-dimensional membranous scaffolds of bioglass and alginate composites for tissue regenerative applications. Biomater Sci 2020; 8:4003-4025. [DOI: 10.1039/d0bm00714e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Multifunctional bioactive hydrogel ECM like membrane for 3D dynamic tissue/disease modelling.
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Affiliation(s)
- P. Bargavi
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - R. Ramya
- SRM Dental College
- SRMIST
- Chennai – 600089
- India
| | - S. Chitra
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - S. Vijayakumari
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - R. Riju Chandran
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - D. Durgalakshmi
- Department of Medical Physics
- Anna University
- Chennai – 600 025
- India
| | - P. Rajashree
- CAS in Crystallography & Biophysics
- University of Madras
- Chennai – 600 025
- India
| | - S. Balakumar
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
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