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Hou L, Huang Y, Hou W, Yan Y, Liu J, Xia N. Modification-free amperometric biosensor for the detection of wild-type p53 protein based on the in situ formation of silver nanoparticle networks for signal amplification. Int J Biol Macromol 2020; 158:580-586. [PMID: 32380113 DOI: 10.1016/j.ijbiomac.2020.04.271] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/12/2020] [Accepted: 04/30/2020] [Indexed: 02/03/2023]
Abstract
Sensitive and accurate quantification of wild-type p53 protein is of great importance for biological research and clinical diagnosis. Herein, a modification-free amperometric biosensor was proposed for sensitive detection of wild-type p53 protein by the signal amplification of silver nanoparticles (AgNPs) networks formed in situ on electrode surface. Double-stranded DNA (dsDNA) probe containing two consensus sites was immobilized on gold electrode surface to capture wild-type p53 protein. The cysteine thiol and amine groups on the exterior of the protein allowed for the attachment of bare AgNPs through the AgS or AgN interactions. Meanwhile, benzene-1,4-dithiol (BDT) molecules in solution triggered the assembly of more AgNPs on electrode surface through the AgS interactions, thus leading to the in situ formation of AgNPs networks for signal amplification. The target at the concentration as low as 0.1 pM can be readily determined. This method was further applied to determine wild-type p53 protein in spiked human serum and cell lysates with satisfactory results. Moreover, the biosensor is regenerative and does not require the modification of AgNPs with recognition element for signal readout. The modification-free strategy can potentially be applied to develop novel biosensors for detection of other biological macromolecules.
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Affiliation(s)
- Linlin Hou
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Yaliang Huang
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Weilin Hou
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Yurou Yan
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Jinlin Liu
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Ning Xia
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China.
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Chen X, Chen T, Ren L, Chen G, Gao X, Li G, Zhu X. Triplex DNA Nanoswitch for pH-Sensitive Release of Multiple Cancer Drugs. ACS NANO 2019; 13:7333-7344. [PMID: 31180197 DOI: 10.1021/acsnano.9b03846] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A DNA-based stimulus-responsive drug delivery system for synergetic cancer therapy has been developed. The system is built on a triplex-DNA nanoswitch capable of precisely responding to pH variations in the range of ∼5.0-7.0. In extracellular neutral pH space, the DNA nanoswitch keeps a linear conformation, immobilizing multiple therapeutics such as small molecules and antisense compounds simultaneously. Following targeted cancer cell uptake via endocytosis, the nanoswitch inside acidic intracellular compartments goes through a conformational change from linear to triplex, leading to smart release of the therapeutic combination. This stimuli-responsive drug delivery system does not rely on artificial responsive materials, making it biocompatible. Furthermore, it enables simultaneous delivery of multiple therapeutics for enhanced efficacy. Using tumor-bearing mouse models, we show efficient gene silencing and significant inhibition of tumor growth upon intravenous administration of the smart nanoswitch, providing opportunities for combinatorial cancer therapy.
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Affiliation(s)
- Xiaoxia Chen
- Center for Molecular Recognition and Biosensing, School of Life Sciences , Shanghai University , Shanghai 200444 , P. R. China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200032 , P. R. China
| | - Tianshu Chen
- Center for Molecular Recognition and Biosensing, School of Life Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Lingjie Ren
- Center for Molecular Recognition and Biosensing, School of Life Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Guifang Chen
- Center for Molecular Recognition and Biosensing, School of Life Sciences , Shanghai University , Shanghai 200444 , P. R. China
- Department of Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - Xiaohu Gao
- Department of Bioengineering , University of Washington , Seattle , Washington 98195 , United States
| | - Genxi Li
- Center for Molecular Recognition and Biosensing, School of Life Sciences , Shanghai University , Shanghai 200444 , P. R. China
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry , Nanjing University , Nanjing 210093 , P. R. China
| | - Xiaoli Zhu
- Center for Molecular Recognition and Biosensing, School of Life Sciences , Shanghai University , Shanghai 200444 , P. R. China
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Mei LP, Jiang XY, Yu XD, Zhao WW, Xu JJ, Chen HY. Cu Nanoclusters-Encapsulated Liposomes: Toward Sensitive Liposomal Photoelectrochemical Immunoassay. Anal Chem 2018; 90:2749-2755. [DOI: 10.1021/acs.analchem.7b04789] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Li-Ping Mei
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xin-Yuan Jiang
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiao-Dong Yu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei-Wei Zhao
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Department
of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Ye Z, Wei L, Zeng X, Weng R, Shi X, Wang N, Chen L, Xiao L. Background-Free Imaging of a Viral Capsid Proteins Coated Anisotropic Nanoparticle on a Living Cell Membrane with Dark-Field Optical Microscopy. Anal Chem 2017; 90:1177-1185. [PMID: 29243478 DOI: 10.1021/acs.analchem.7b03762] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Exploring the diffusion dynamics of a viral capsid proteins (VCP)-functionalized nanocarrier on a living cell membrane could provide much kinetic information for the better understanding of their biological functionality. Gold nanoparticles are an excellent core material of nanocarriers because of the good biocompatibility as well as versatile surface chemistry. However, due to the strong scattering background from subcellular organelles, it is a grand challenge to selectively image an individual nanocarrier on a living cell membrane. In this work, we demonstrated a convenient strategy to effectively screen the scattering background from living cells for single-particle imaging with a polarization-resolved dual-channel imaging module. By taking advantage of the polarization of anisotropic gold nanoparticles (gold nanorods, GNRs), the signals from cell components could be counteracted after subtracting the sequential images one by one, while those transiently rotating GNRs on the cell membrane still exist in the processed image. In contrast to the previously reported methods, this method does not require a complicated optical setup alignment and sophisticated digital image analysis process. According to the single-particle imaging results, the majority of VCP-GNRs were anchoring on the cell membrane with confined diffusion. Interestingly, on further inspection of the diffusion trajectories, the particles displayed anomalous confined diffusion with randomly distributed large walking steps during the whole track. Non-Gaussian step distribution was noted, indicating heterogeneous binding and desorption processes on the cell membrane. As a consequence of the robust background screening capability, this approach would find broad applications for single-particle imaging under a noisy environment, e.g., living cells.
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Affiliation(s)
- Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha, 410081, China
| | - Xuyao Zeng
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Rui Weng
- Key Laboratory of Agro-food Safety and Quality of Ministry of Agriculture, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences , Beijing, 100081, China
| | - Xingbo Shi
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University , Changsha 410128, China
| | - Naidong Wang
- College of Veterinary Medicine, Hunan Agricultural University , Changsha, 410128, China
| | - Langxing Chen
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University , Tianjin, 300071, China.,Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha, 410081, China
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Qian RC, Lv J, Li HW, Long YT. Sugar-Coated Nanobullet: Growth Inhibition of Cancer Cells Induced by Metformin-Loaded Glyconanoparticles. ChemMedChem 2017; 12:1823-1827. [DOI: 10.1002/cmdc.201700583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Indexed: 12/29/2022]
Affiliation(s)
- Ruo-Can Qian
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Jian Lv
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Hao-Wen Li
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P.R. China
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering; East China University of Science and Technology; Shanghai 200237 P.R. China
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Mei LP, Liu F, Pan JB, Zhao WW, Xu JJ, Chen HY. Enediol-Ligands-Encapsulated Liposomes Enables Sensitive Immunoassay: A Proof-of-Concept for General Liposomes-Based Photoelectrochemical Bioanalysis. Anal Chem 2017; 89:6300-6304. [DOI: 10.1021/acs.analchem.7b01291] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Li-Ping Mei
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Fei Liu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jian-Bin Pan
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei-Wei Zhao
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Department
of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Jing-Juan Xu
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science and Collaborative
Innovation Center of Chemistry for Life Science, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Zhang Y, Li M, Li Z, Li Q, Aldalbahi A, Shi J, Wang L, Fan C, Zuo X. Recognizing single phospholipid vesicle collisions on carbon fiber nanoelectrode. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9036-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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