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Li J, Tan R, Bian X, Ge Z, Li J, Li Z, Liao L, Yang L, Zhang R, Zhou P. Design of carbon dots for bioimaging and behavior regulation of stem cells. Nanomedicine (Lond) 2023; 18:1109-1134. [PMID: 37610118 DOI: 10.2217/nnm-2023-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023] Open
Abstract
Carbon dots (CDs) have been widely used in bioimaging, biosensing and biotherapy because of their good biocompatibility, optical properties and stability. In this review, we comprehensively summarize the research on CDs in terms of synthesis methods, optical properties and biotoxicity. We describe and envisage the directions for CDs application in stem cell imaging and differentiation, with the aim of stimulating the design of future related CDs. We used 'carbon dots', 'stem cells', 'cell imaging', 'cell differentiation' and 'fate control' as keywords to search for important articles. The Web of Science database was used to extract vital information from a total of 357 papers, 126 review articles and 231 article proceedings within 12 years (2011-2022).
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Affiliation(s)
- Jing Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Rongshuang Tan
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Xueru Bian
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Zhangjie Ge
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Jiamin Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Zhihui Li
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Lingzi Liao
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Ling Yang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Rui Zhang
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
| | - Ping Zhou
- Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School and Hospital of Stomatology, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu Province, 730000, People's Republic of China
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Wu WCH, Chen SX, Ng JCK. Does Believing in Fate Facilitate Active or Avoidant Coping? The Effects of Fate Control on Coping Strategies and Mental Well-Being. Int J Environ Res Public Health 2020; 17:ijerph17176383. [PMID: 32887254 PMCID: PMC7503423 DOI: 10.3390/ijerph17176383] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 01/07/2023]
Abstract
The development of control-related constructs has involved different approaches over time, and yet internal and external locus of control are conceptualized as dichotomous factors influencing active versus avoidant coping strategies. While external control is associated with avoidance, a similar belief construct fate control, which denotes that life events are pre-determined and influenced by external forces but predictable and alterable, challenges the assumption of incompatibility between fate and agency. To develop a dynamic model of control, we suggest that external control would affect avoidant coping, which in turn would affect psychological distress, whereas fate control would affect both active and avoidant coping when dealing with stress. The model was supported among Hong Kong Chinese using a cross-sectional approach in Study 1 (n = 251) and hypothetical stressful scenarios in Study 2 (n = 294). The moderating effect of perceived controllability was observed in coping behaviors using a diary approach in Study 3 (n = 188). Our findings offer an alternative perspective to the dichotomous view of control and provide implications for coping strategies and mental well-being.
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Affiliation(s)
- Wesley C H Wu
- Department of Applied Social Sciences, Hong Kong Polytechnic University, Hong Kong, China
| | - Sylvia Xiaohua Chen
- Department of Applied Social Sciences, Hong Kong Polytechnic University, Hong Kong, China
| | - Jacky C K Ng
- Department of Counselling & Psychology, Hong Kong Shue Yan University, Hong Kong, China
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Nguyen-Ba-Charvet KT, Rebsam A. Neurogenesis and Specification of Retinal Ganglion Cells. Int J Mol Sci 2020; 21:ijms21020451. [PMID: 31936811 PMCID: PMC7014133 DOI: 10.3390/ijms21020451] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/25/2022] Open
Abstract
Across all species, retinal ganglion cells (RGCs) are the first retinal neurons generated during development, followed by the other retinal cell types. How are retinal progenitor cells (RPCs) able to produce these cell types in a specific and timely order? Here, we will review the different models of retinal neurogenesis proposed over the last decades as well as the extrinsic and intrinsic factors controlling it. We will then focus on the molecular mechanisms, especially the cascade of transcription factors that regulate, more specifically, RGC fate. We will also comment on the recent discovery that the ciliary marginal zone is a new stem cell niche in mice contributing to retinal neurogenesis, especially to the generation of ipsilateral RGCs. Furthermore, RGCs are composed of many different subtypes that are anatomically, physiologically, functionally, and molecularly defined. We will summarize the different classifications of RGC subtypes and will recapitulate the specification of some of them and describe how a genetic disease such as albinism affects neurogenesis, resulting in profound visual deficits.
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Hwang DW, Jo MJ, Lee JH, Kang H, Bao K, Hu S, Baek Y, Moon HG, Lee DS, Kashiwagi S, Henary M, Choi HS. Chemical Modulation of Bioengineered Exosomes for Tissue-Specific Biodistribution. Adv Ther (Weinh) 2019; 2. [PMID: 32318623 DOI: 10.1002/adtp.201900111] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The physicochemical properties of nanomaterials play a key role in tissue-specific targeting by reducing nonspecific background uptake as well as controlling biodistribution and clearance. Due to the strong influence of surface chemistry, chemical modulation of bioinert exosomes with chargeable and traceable small molecule fluorophores has a significant effect on the targeting, stability, and toxicity of the final conjugates. In this study, charge-variable exosomes are designed by conjugating their surface proteins with near-infrared fluorophores to control the in vivo fate of exosomes. Interestingly, zwitterionic fluorophore-labeled exosomes show rapid renal clearance with minimum to none nonspecific tissue uptake, whereas anionic exosomes are excreted through the hepatobiliary route with high uptake in the liver. The biodistribution and pharmacokinetics of exosome conjugates are comparable to their corresponding free fluorophores, demonstrating that the surface characteristics govern the fate of final conjugates in the living organism. Such unique surface properties of chemically modulated exosomes are confirmed in the lymphatic system after intradermal administration, which results in distinctive kinetic profiles in the secondary lymphoid tissues. This finding can subsequently serve as the foundation for developing tissue-specific exosome-based therapeutics.
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Affiliation(s)
- Do Won Hwang
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Min Joo Jo
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Jeong Heon Lee
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Homan Kang
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Kai Bao
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Shuang Hu
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Yoonji Baek
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Hyung Geun Moon
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Dong Soo Lee
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Medicine and College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Maged Henary
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta GA 30303, USA
| | - Hak Soo Choi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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