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Zeng Y, Wang X, Zhang J. Single-cell biomedicine: roles of single-cell nuclear elements. Cell Biol Toxicol 2020; 36:1-3. [PMID: 32008122 DOI: 10.1007/s10565-020-09515-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 01/24/2020] [Indexed: 12/17/2022]
Abstract
Single-cell biomedicine, a new merging discipline of cell biology and medicine to improve the life quality of patients, gains high priority in cell biology and toxicology. Single-cell nuclear elements are specially focused and headlined to understand regulatory mechanisms by which transcriptional factors, DNA elements, and genome organization interact with each other and contribute to the developmental evolution and dynamic formation of genotoxicity. Cell molecular phenomics, clonal genotypes, and structural metamorphoses during the cell cycle at single-cell level provide deep insights to understanding mechanism-based bridges between cell biology and toxicology, between cell sensitive and resistance, and between chronic diseases and cancer.
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Affiliation(s)
- Yiming Zeng
- Department of Pulmonary and Critical Care Medicine, Clinical Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China.
| | - Xiangdong Wang
- Centre for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University Shanghai Medical College, Shanghai, China.
| | - Jiaqiang Zhang
- Department of Anesthesiology and Perioperative Medicine, Center for Clinical Single Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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Facile Method for Fabricating Microfluidic Chip Integrated with Microwell Arrays for Cell Trapping. MICROMACHINES 2019; 10:mi10110719. [PMID: 31731448 PMCID: PMC6915356 DOI: 10.3390/mi10110719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 01/04/2023]
Abstract
With the development of biomedical technology, personalized diagnosis and treatment at the single-cell level are becoming more important in the medical field. As one of the most powerful tools, microfluidic chips have shown significant potential for various applications related to cell separation, cell proliferation, and cell behavior analysis. However, fabricating microfluidic devices requires complicated procedures and high-cost equipment. In this study, an optofluidic maskless lithography method was proposed for rapid fabrication of microfluidic devices integrated with microwells. Through the use of this approach, microwells can be on-line designed and the exposure patterns can be modulated. Single or multi polystyrene microspheres were successfully trapped by using the designed microwells. The capture of MCF-7 cells and cell arrays indicated that the microfluidic devices fabricated in the present study can be applied for cell research.
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Lei Z, Ding L, Yao C, Mo F, Li C, Huang Y, Yin X, Li M, Liu J, Zhang Y, Ling C, Wang Y. A Highly Efficient Tumor-Targeting Nanoprobe with a Novel Cell Membrane Permeability Mechanism. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807456. [PMID: 30680812 DOI: 10.1002/adma.201807456] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 01/06/2019] [Indexed: 06/09/2023]
Abstract
Efficient tumor targeting has been a great challenge in the clinic for a very long time. The traditional targeting methods based on enhanced permeability and retention (EPR) effects show only an ≈5% targeting rate. To solve this problem, a new graphene-based tumor cell nuclear targeting fluorescent nanoprobe (GTTN), with a new tumor-targeting mechanism, is developed. GTTN is a graphene-like single-crystalline structure amphiphilic fluorescent probe with a periphery that is functionalized by sulfonic and hydroxyl groups. This probe has the characteristic of specific tumor cell targeting, as it can directly cross the cell membrane and specifically target to the tumor cell nucleus by the changed permeability of the tumor cell membranes in the tumor tissue. This new targeting mechanism is named the cell membrane permeability targeting (CMPT) mechanism, which is very different from the EPR effect. These probes can recognize tumor tissue at a very early stage and track the invasion and metastasis of tumor cells at the single cell level. The tumor-targeting rate is improved from less than 5% to more than 50%. This achievement in efficient and accurate tumor cell targeting will speed up the arrival of a new era of tumor diagnosis and treatment.
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Affiliation(s)
- Zhendong Lei
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
- Department of Biomedical Engineering, National University of Singapore, Singapore, 119077, Singapore
| | - Lin Ding
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
| | - Chenjie Yao
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
- Program in Molecular and Integrative Physiological Sciences, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, 02115, USA
| | - Fengfeng Mo
- Ship Hygiene Department, Faculty of Naval Medicine, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Chenchen Li
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
| | - Yanan Huang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
| | - Xuelian Yin
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
| | - Min Li
- Ship Hygiene Department, Faculty of Naval Medicine, Second Military Medical University, Shanghai, 200433, P. R. China
| | - Jinliang Liu
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
| | - Yong Zhang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
- Department of Biomedical Engineering, National University of Singapore, Singapore, 119077, Singapore
| | - Changquan Ling
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai, 200433, P. R. China
| | - Yanli Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai, 200444, P. R. China
- Program in Molecular and Integrative Physiological Sciences, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, 02115, USA
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