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Wang J, Qiu L, You Y, Ma L, Zhu Z, Yang L, Wang J, Wang X, Liu L, Liu X, Chang Y, Li J, Gao L, Li YQ. A novel in-capillary assay for dynamically monitoring fast binding between antibody and peptides using CE. J Sep Sci 2018; 41:4544-4550. [DOI: 10.1002/jssc.201800946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/16/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Jianhao Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Ying You
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Luping Ma
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Zhilan Zhu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Li Yang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jianpeng Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Xiang Wang
- Radiology Department; The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University; Changzhou Jiangsu P. R. China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Xiaoqian Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Yufeng Chang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jie Li
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Liqian Gao
- School of Pharmaceutical Science (Shenzhen); Sun Yat-Sen University (SYSU); Guangzhou Guangdong P. R. China
| | - Yong-Qiang Li
- State Key Laboratory of Radiation Medicine and Protection; School of Radiation Medicine and Protection; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions; Soochow University; Suzhou P. R.China
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Wang J, Zhu Z, Wang X, Yang L, Liu L, Wang J, Igbinigie E, Liu X, Li J, Qiu L, Li YQ, Jiang P. A novel monitoring approach of antibody-peptide binding using "bending" capillary electrophoresis. Int J Biol Macromol 2018. [PMID: 29524489 DOI: 10.1016/j.ijbiomac.2018.03.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Recently, the in-capillary electrophoresis assay has been applied to variety kinds of analyses owing to its multiple functional integrating features, including mixing of samples, reaction process of the mixtures, and the separation and detection in one capillary system. However, the micro-reactor still has its limitations to the currently available applications, especially the mixing step of the samples inside the capillary could not be well controlled automatically or manually. Herein, we have developed a novel capillary electrophoresis assay for the detection of antibody-peptide binding inside a bending capillary. Its efficacy was monitored using an anti-FLAG M2 antibody and its ligand conjugated with FAM dye (FAM-DYKD). The antibody and the peptide were mixed inside the bending capillary with sequential injections. It was found that the numbers of semi-circle on the capillary interfered by the antibody and peptide binding dynamic. Additionally, an online competition assay was performed, which further validated the efficacy of the bending capillary device on monitoring the dynamic binding between the antigen and antibody. In summary, our data suggests that the novel assay is a practical approach in monitoring the antibody-antigen complex formation at a nano-scale. It could be applied to detect any biomolecule-biomolecule interaction as a general strategy.
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Affiliation(s)
- Jianhao Wang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Zhilan Zhu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Xiang Wang
- Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou 213164, People's Republic of China
| | - Li Yang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Jianpeng Wang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Eseosaserea Igbinigie
- Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, Hoskins Building, Room #2209, 4700 Waters Ave, Savannah, GA, USA, 31404
| | - Xiaoqian Liu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Jinping Li
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China; Department of Biomedical Science, Mercer University School of Medicine, Savannah Campus, Hoskins Building, Room #2209, 4700 Waters Ave, Savannah, GA, USA, 31404.
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China.
| | - Yong-Qiang Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People's Republic of China.
| | - Pengju Jiang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China.
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Lai YT, Yang Y, Hu L, Cheng T, Chang YY, Koohi-Moghadam M, Wang Y, Xia J, Wang J, Li H, Sun H. Integration of fluorescence imaging with proteomics enables visualization and identification of metallo-proteomes in living cells. Metallomics 2017; 9:38-47. [PMID: 27830853 DOI: 10.1039/c6mt00169f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Metalloproteins account for nearly one-third of proteins in proteomes. To date, the identification of metalloproteins relies mainly on protein purification and the subsequent characterization of bound metals, which often leads to losses of metal ions bound weakly and transiently. Herein, we developed a strategy to visualize and subsequently identify endogenous metalloproteins and metal-binding proteins in living cells via integration of fluorescence imaging with proteomics. We synthesized a "metal-tunable" fluorescent probe (denoted as Mn+-TRACER) that rapidly enters cells to target proteins with 4-40 fold fluorescence enhancements. By using Ni2+-TRACER as an example, we demonstrate the feasibility of tracking Ni2+-binding proteins in vitro, while cellular small molecules exhibit negligible interference on the labeling. We identified 44 Ni2+-binding proteins from microbes using Helicobacter pylori as a showcase. We further applied Cu2+-TRACER to mammalian cells and found 54 Cu2+-binding proteins. The strategy we report here provides a great opportunity to track various endogenous metallo-proteomes and to mine potential targets of metallodrugs.
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Affiliation(s)
- Yau-Tsz Lai
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Ya Yang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Ligang Hu
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Tianfan Cheng
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Yuen-Yan Chang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Mohamad Koohi-Moghadam
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Yuchuan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, P. R. China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, P. R. China
| | - Junwen Wang
- Center for Individualized Medicine & Department of Health Sciences Research, Mayo Clinic, Scottsdale, AZ 85259 USA and Department of Biomedical Informatics, Arizona State University, Scottsdale, AZ 85259 USA
| | - Hongyan Li
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
| | - Hongzhe Sun
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, P. R. China.
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Wang J, Yang L, Liu L, Wu H, Wang J, Jiang P, Jiang X, Qiu L. Investigation of multivalent interactions between conjugate of quantum dots with c-Myc peptide tag and the anti-c-Myc antibody by capillary electrophoresis with fluorescence detection. J Sep Sci 2016; 39:4653-4659. [DOI: 10.1002/jssc.201600931] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 09/18/2016] [Accepted: 09/24/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Jianhao Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
| | - Li Yang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
| | - Hao Wu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
| | - Jianpeng Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
| | - Pengju Jiang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
- Key Laboratory of Synthetic Biology, Shanghai Institutes for Biological Sciences; Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Xiyuan Jiang
- Kunshan affiliated Hospital of Nanjing University of Chinese Medicine; Kunshan Jiangsu People's Republic of China
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu People's Republic of China
- State Key Laboratory of Coordination Chemistry; Nanjing University; Nanjing Jiangsu People's Republic of China
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Wang J, Qin Y, Qin H, Liu L, Ding S, Teng Y, Ji J, Qiu L, Jiang P. Simultaneous detection of assembly and disassembly of multivalent HA tag and anti-HA antibody in single in-capillary assay. Electrophoresis 2016; 37:2163-9. [DOI: 10.1002/elps.201600004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/20/2016] [Accepted: 04/04/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Jianhao Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Jiangsu P. R. China
| | - Yuqin Qin
- School of Petrochemical Engineering; Changzhou University; Jiangsu P. R. China
| | - Haifang Qin
- Institute of Pharmaceutical and Environmental Engineering; Changzhou Vocational Institute of Engineering; Jiangsu P. R. China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Jiangsu P. R. China
| | - Shumin Ding
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Jiangsu P. R. China
| | - Yiwan Teng
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Jiangsu P. R. China
| | - Junling Ji
- Changzhou Meisheng Biomaterials Co., Ltd; Jiangsu P. R. China
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Jiangsu P. R. China
- Changzhou Meisheng Biomaterials Co., Ltd; Jiangsu P. R. China
| | - Pengju Jiang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Jiangsu P. R. China
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Qin Y, Qiu L, Qin H, Ding S, Liu L, Teng Y, Chen Y, Wang C, Li J, Wang J, Jiang P. In-capillary detection of fast antibody-peptide binding using fluorescence coupled capillary electrophoresis. Electrophoresis 2015; 37:233-8. [DOI: 10.1002/elps.201500429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 10/15/2015] [Accepted: 10/18/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Yuqin Qin
- School of Petrochemical Engineering; Changzhou University; Changzhou Jiangsu P. R. China
| | - Lin Qiu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Haifang Qin
- Institute of Pharmaceutical and Environmental Engineering; Changzhou Vocational Institute of Engineering; Changzhou Jiangsu P. R. China
| | - Shumin Ding
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Li Liu
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Yiwan Teng
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Yao Chen
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Cheli Wang
- School of Petrochemical Engineering; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jinchen Li
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Jianhao Wang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
| | - Pengju Jiang
- School of Pharmaceutical Engineering and Life Science; Changzhou University; Changzhou Jiangsu P. R. China
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Protein a detection based on quantum dots-antibody bioprobe using fluorescence coupled capillary electrophoresis. Int J Mol Sci 2014; 15:1804-11. [PMID: 24469315 PMCID: PMC3958821 DOI: 10.3390/ijms15021804] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 01/09/2014] [Accepted: 01/15/2014] [Indexed: 11/16/2022] Open
Abstract
In this report, fluorescence detection coupled capillary electrophoresis (CE-FL) was used to detect Protein A. Antibody was first labeled with Cy5 and then mixed with quantum dots (QDs) to form QDs-antibody bioprobe. Further, we observed fluorescence resonance energy transfer (FRET) from QDs donor to Cy5 acceptor. The bioprobe was formed and brought QDs and Cy5 close enough to allow FRET to occur. After adding protein A, the FRET system was broken and caused the FRET signal to decrease. Thus, a new method for the determination of protein A was proposed based on the FRET signal changes. This study provides a new trail of thought for the detection of protein.
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Wang J, Jiang P, Qiu L, Wang C, Xia J. Resolving antibody–peptide complexes with different ligand stoichiometries reveals a marked affinity enhancement through multivalency. Talanta 2013; 115:394-400. [DOI: 10.1016/j.talanta.2013.05.070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 05/25/2013] [Accepted: 05/30/2013] [Indexed: 10/26/2022]
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