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Feng ZQ, Yan K, Shi C, Xu X, Wang T, Li R, Dong W, Zheng J. Neurogenic differentiation of adipose derived stem cells on graphene-based mat. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:685-692. [PMID: 29853140 DOI: 10.1016/j.msec.2018.05.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 03/06/2018] [Accepted: 05/04/2018] [Indexed: 12/27/2022]
Abstract
Adipose derived stem cells (ADSCs) have been proved as an abundant and accessible cell source with the ability to differentiate into neuron-like cells. However, the low differentiation efficiency puts forward an important challenge to practical applications in clinic. Considering of the good biocompatibility of graphene-based materials and the potential interaction between graphene and cells mentioned in previous studies, herein, we investigated the effect of graphene oxide (GO) and reduced graphene oxide (rGO) mats on neurogenic differentiation of the ADSCs. We demonstrated the excellent capabilities of graphene-based mats, especially GO to support the neural differentiation of ADSCs. By comparing the observation under an optical microscope and fluorescence microscope, the conversion rate of neuron-like cells reached about 90%. We consider that GO mat is better for promoting the differentiation of ADSCs into neuron-like cells, which compared to rGO based platforms. Meanwhile, we made an analysis of the mechanism by which graphene induced the differentiation of ADSCs to neuron-like cells. The data obtained here highlight the effect of GO mat on neurogenic differentiation of ADSCs and implicate the potential of graphene-based materials in application of neural tissue engineering for the limited self-repair capability of nerve cells.
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Affiliation(s)
- Zhang-Qi Feng
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China; Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA; State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China.
| | - Ke Yan
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Chuanmei Shi
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Xuran Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Ting Wang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Ruitao Li
- School of Mechanical Engineering, Jiang Su University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Wei Dong
- School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA
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Villar-Pique A, Navarro S, Ventura S. Characterization of amyloid-like properties in bacterial intracellular aggregates. Methods Mol Biol 2015; 1258:99-122. [PMID: 25447861 DOI: 10.1007/978-1-4939-2205-5_6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Protein aggregation into amyloid conformations is associated with more than 50 different human disorders. Recent studies demonstrate that the expression in bacteria of amyloid proteins results in the formation of intracellular aggregates structurally related to those underlying human diseases. The ease with which prokaryotic organisms can be genetically and biochemically manipulated makes them useful systems for studying how and why protein aggregates inside the cell, providing a tractable environment to rationally model in vivo amyloid formation. In this chapter we present an overview of the methods used to characterize the kinetic, structural, and functional properties of amyloid-like bacterial intracellular aggregates and how they can be employed to screen for lead compounds that might modulate amyloid deposition.
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Affiliation(s)
- Anna Villar-Pique
- Departament de Bioquímica i Biologia Molecular, Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra, Cerdanyola del Vallés, 08193, Barcelona, Spain
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GUIDOLIN DIEGO, AGNATI LUIGIF, TORTORELLA CINZIA, MARCOLI MANUELA, MAURA GUIDO, ALBERTIN GIOVANNA, FUXE KJELL. Neuroglobin as a regulator of mitochondrial-dependent apoptosis: A bioinformatics analysis. Int J Mol Med 2013; 33:111-6. [DOI: 10.3892/ijmm.2013.1564] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 11/01/2013] [Indexed: 11/05/2022] Open
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Villar-Piqué A, Ventura S. Protein aggregation propensity is a crucial determinant of intracellular inclusion formation and quality control degradation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2714-2724. [PMID: 23856334 DOI: 10.1016/j.bbamcr.2013.06.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 06/21/2013] [Accepted: 06/24/2013] [Indexed: 01/13/2023]
Abstract
Protein aggregation is linked to many pathological conditions, including several neurodegenerative diseases. The aggregation propensities of proteins are thought to be controlled to a large extent by the physicochemical properties encoded in the primary sequence. We have previously exploited a set of amyloid β peptide (Aβ42) variants exhibiting a continuous gradient of intrinsic aggregation propensities to demonstrate that this rule applies in vivo in bacteria. In the present work we have characterized the behavior of these Aβ42 mutants when expressed in yeast. In contrast to bacteria, the intrinsic aggregation propensity is gated by yeast, in such a way that this property correlates with the formation of intracellular inclusions only above a specific aggregation threshold. Proteins displaying solubility levels above this threshold escape the inclusion formation pathway. In addition, the most aggregation-prone variants are selectively cleared by the yeast quality control degradation machinery. Thus, both inclusion formation and proteolysis target the same aggregation-prone variants and cooperate to minimize the presence of these potentially dangerous species in the cytosol. The demonstration that sorting to these pathways in eukaryotes is strongly influenced by protein primary sequence should facilitate the development of rational approaches to predict and hopefully prevent in vivo protein deposition.
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Affiliation(s)
- Anna Villar-Piqué
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain; Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - Salvador Ventura
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain; Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
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