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Nasrollahi F, Nazir F, Tavafoghi M, Hosseini V, Ali Darabi M, Paramelle D, Khademhosseini A, Ahadian S. Graphene Quantum Dots for Fluorescent Labeling of Gelatin‐Based Shear‐Thinning Hydrogels. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Fatemeh Nasrollahi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Farzana Nazir
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Department of Chemistry School of Natural Sciences National University of Science and Technology (NUST) Islamabad 44000 Pakistan
| | - Maryam Tavafoghi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
| | - Vahid Hosseini
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Mohammad Ali Darabi
- Department of Bioengineering University of California-Los Angeles Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C-MIT) University of California-Los Angeles Los Angeles CA 90095 USA
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - David Paramelle
- Institute of Materials Research and Engineering A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634 Singapore
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI) Los Angeles CA 90024 USA
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Cardiac Differentiation of Mesenchymal Stem Cells: Impact of Biological and Chemical Inducers. Stem Cell Rev Rep 2021; 17:1343-1361. [PMID: 33864233 DOI: 10.1007/s12015-021-10165-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2021] [Indexed: 02/07/2023]
Abstract
Cardiovascular disorders (CVDs) are the leading cause of global death, widely occurs due to irreparable loss of the functional cardiomyocytes. Stem cell-based therapeutic approaches, particularly the use of Mesenchymal Stem Cells (MSCs) is an emerging strategy to regenerate myocardium and thereby improving the cardiac function after myocardial infarction (MI). Most of the current approaches often employ the use of various biological and chemical factors as cues to trigger and modulate the differentiation of MSCs into the cardiac lineage. However, the recent advanced methods of using specific epigenetic modifiers and exosomes to manipulate the epigenome and molecular pathways of MSCs to modify the cardiac gene expression yield better profiled cardiomyocyte like cells in vitro. Hitherto, the role of cardiac specific inducers triggering cardiac differentiation at the cellular and molecular level is not well understood. Therefore, the current review highlights the impact and recent trends in employing biological and chemical inducers on cardiac differentiation of MSCs. Thereby, deciphering the interactions between the cellular microenvironment and the cardiac inducers will help us to understand cardiomyogenesis of MSCs. Additionally, the review also provides an insight on skeptical roles of the cell free biological factors and extracellular scaffold assisted mode for manipulation of native and transplanted stem cells towards translational cardiac research.
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Patel A, Xue Y, Hartley R, Sant V, Eles JR, Cui XT, Stolz DB, Sant S. Hierarchically aligned fibrous hydrogel films through microfluidic self-assembly of graphene and polysaccharides. Biotechnol Bioeng 2018; 115:2654-2667. [PMID: 30011077 DOI: 10.1002/bit.26801] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/25/2018] [Accepted: 06/26/2018] [Indexed: 12/17/2022]
Abstract
Despite significant interest in developing extracellular matrix (ECM)-inspired biomaterials to recreate native cell-instructive microenvironments, the major challenge in the biomaterial field is to recapitulate the complex structural and biophysical features of native ECM. These biophysical features include multiscale hierarchy, electrical conductivity, optimum wettability, and mechanical properties. These features are critical to the design of cell-instructive biomaterials for bioengineering applications such as skeletal muscle tissue engineering. In this study, we used a custom-designed film fabrication assembly, which consists of a microfluidic chamber to allow electrostatic charge-based self-assembly of oppositely charged polymer solutions forming a hydrogel fiber and eventually, a nanocomposite fibrous hydrogel film. The film recapitulates unidirectional hierarchical fibrous structure along with the conductive properties to guide initial alignment and myotube formation from cultured myoblasts. We combined high conductivity, and charge carrier mobility of graphene with biocompatibility of polysaccharides to develop graphene-polysaccharide nanocomposite fibrous hydrogel films. The incorporation of graphene in fibrous hydrogel films enhanced their wettability, electrical conductivity, tensile strength, and toughness without significantly altering their elastic properties (Young's modulus). In a proof-of-concept study, the mouse myoblast cells (C2C12) seeded on these nanocomposite fibrous hydrogel films showed improved spreading and enhanced myogenesis as evident by the formation of multinucleated myotubes, an early indicator of myogenesis. Overall, graphene-polysaccharide nanocomposite fibrous hydrogel films provide a potential biomaterial to promote skeletal muscle tissue regeneration.
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Affiliation(s)
- Akhil Patel
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yingfei Xue
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rebecca Hartley
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vinayak Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - James R Eles
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania
| | - Xinyan Tracy Cui
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania.,Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Donna Beer Stolz
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania.,Center for Biologic Imaging, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Cell Biology and Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Shilpa Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania
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Kumar S, Chatterjee K. Comprehensive Review on the Use of Graphene-Based Substrates for Regenerative Medicine and Biomedical Devices. ACS APPLIED MATERIALS & INTERFACES 2016; 8:26431-26457. [PMID: 27662057 DOI: 10.1021/acsami.6b09801] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Recent research suggests that graphene holds great potential in the biomedical field because of its extraordinary properties. Whereas initial attempts focused on the use of suspended graphene for drug delivery and bioimaging, more recent work has demonstrated its advantages for preparing substrates for tissue engineering and biomedical devices and products. Cells are known to interact with and respond to nanoparticles differently when presented in the form of a substrate than in the form of a suspension. In tissue engineering, a stable and supportive substrate or scaffold is needed to provide mechanical support, chemical stimuli, and biological signals to cells. This review compiles recent advances of the impact of both graphene and graphene-derived particles to prepare supporting substrates for tissue regeneration and devices as well as the associated cell response to multifunctional graphene substrates. We discuss the interaction of cells with pristine graphene, graphene oxide, functionalized graphene, and hybrid graphene particles in the form of coatings and composites. Such materials show excellent biological outcomes in vitro, in particular, for orthopedic and neural tissue engineering applications. Preliminary evaluation of these graphene-based materials in vivo reinforces their promise for tissue regeneration and implants. Although the reported findings of studies on graphene-based substrates are promising, several questions and concerns associated with their in vivo use persist. Possible strategies to examine these issues are presented.
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Affiliation(s)
- Sachin Kumar
- Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science , Bangalore 560012, India
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