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Xia J, Zhou Y, Wang Y, Liu Y, Chen Q, Koh K, Hu X, Chen H. Ultrasensitive electrochemical sensor based on synergistic effect of Ag@MXene and antifouling cyclic multifunctional peptide for PD-L1 detection in serum. Mikrochim Acta 2024; 191:380. [PMID: 38858258 DOI: 10.1007/s00604-024-06470-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/26/2024] [Indexed: 06/12/2024]
Abstract
A sensing interface co-constructed from the two-dimensional conductive material (Ag@MXene) and an antifouling cyclic multifunctional peptide (CP) is described. While the large surface area of Ag@MXene loads more CP probes, CP binds to Ag@MXene to form a fouling barrier and ensure the structural rigidity of the targeting sequence. This strategy synergistically enhances the biosensor's sensitivity and resistance to contamination. The SPR results showed that the binding affinity of the CP to the target was 6.23 times higher than that of the antifouling straight-chain multifunctional peptide (SP) to the target. In the 10 mg/mL BSA electrochemical fouling test, the fouling resistance of Ag@MXene + CP (composite sensing interface of CP combined with Ag@MXene) was 30 times higher than that of the bare electrode. The designed electrochemical sensor exhibited good selectivity and wide dynamic response range at PD-L1 concentrations from 0.1 to 50 ng/mL. The lowest detection limit was 24.54 pg/mL (S/N = 3). Antifouling 2D materials with a substantial specific surface area, coupled with non-straight chain antifouling multifunctional peptides, offer a wide scope for investigating the sensitivity and antifouling properties of electrochemical sensors.
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Affiliation(s)
- Junjie Xia
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Yangyang Zhou
- School of Medicine, Shanghai University, Shanghai, 200444, China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yindian Wang
- School of Medicine, Shanghai University, Shanghai, 200444, China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yawen Liu
- School of Medicine, Shanghai University, Shanghai, 200444, China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Qiang Chen
- School of Medicine, Shanghai University, Shanghai, 200444, China
| | - Kwangnak Koh
- Institute of General Education, Pusan National University, Busan, 609-735, Republic of Korea
| | - Xiaojun Hu
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
| | - Hongxia Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
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Fata F, Gabriele F, Angelucci F, Ippoliti R, Di Leandro L, Giansanti F, Ardini M. Bio-Tailored Sensing at the Nanoscale: Biochemical Aspects and Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23020949. [PMID: 36679744 PMCID: PMC9866807 DOI: 10.3390/s23020949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/04/2023] [Accepted: 01/09/2023] [Indexed: 06/01/2023]
Abstract
The demonstration of the first enzyme-based electrode to detect glucose, published in 1967 by S. J. Updike and G. P. Hicks, kicked off huge efforts in building sensors where biomolecules are exploited as native or modified to achieve new or improved sensing performances. In this growing area, bionanotechnology has become prominent in demonstrating how nanomaterials can be tailored into responsive nanostructures using biomolecules and integrated into sensors to detect different analytes, e.g., biomarkers, antibiotics, toxins and organic compounds as well as whole cells and microorganisms with very high sensitivity. Accounting for the natural affinity between biomolecules and almost every type of nanomaterials and taking advantage of well-known crosslinking strategies to stabilize the resulting hybrid nanostructures, biosensors with broad applications and with unprecedented low detection limits have been realized. This review depicts a comprehensive collection of the most recent biochemical and biophysical strategies for building hybrid devices based on bioconjugated nanomaterials and their applications in label-free detection for diagnostics, food and environmental analysis.
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Xiao X, Peng Y, Wang Z, Zhang L, Yang T, Sun Y, Chen Y, Zhang W, Chang X, Huang W, Tian S, Feng Z, Xinhua N, Tang Q, Mao Y. A novel immune checkpoint siglec-15 antibody inhibits LUAD by modulating mφ polarization in TME. Pharmacol Res 2022; 181:106269. [PMID: 35605813 DOI: 10.1016/j.phrs.2022.106269] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/10/2022] [Accepted: 05/18/2022] [Indexed: 12/22/2022]
Abstract
BACKGROUND Siglec-15 (S15) is a type-I transmembrane protein and is considered a new candidate of immune checkpoint inhibitor for cancer immunotherapy. METHODS In the present study, we first constructed and characterized a chimeric S15-specific monoclonal antibody (S15-4E6A). Then, the antitumor effectiveness and modulatory role of S15-4E6A in macrophages (mφs) were explored in vitro and in vivo. Finally, the underlying mechanism by which S15mAb inhibits LUAD was preliminarily explored. RESULTS The results demonstrated the successful construction of S15-4E6A, and S15-4E6A exerted an efficacious tumor-inhibitory effect on LUAD cells and xenografts. S15-4E6A could promote M1-mφ polarization while inhibiting M2-mφ polarization, both in vitro and in vivo. CONCLUSIONS S15-based immunotherapy that functions by modulating mφ polarization may be a promising strategy for the treatment of S15-positive LUAD.
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Affiliation(s)
- Xuejun Xiao
- Department of Pharmacology, Xinjiang Medical University, Urumqi, China
| | - Yan Peng
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Zheyue Wang
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Louqian Zhang
- Department of Thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Tingting Yang
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Yangyang Sun
- Department of Pathology, Changzhou No. 2 People's Hospital Affiliated with Nanjing Medical University, Changzhou, China
| | - Yufeng Chen
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Wenqing Zhang
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Xinxia Chang
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Wen Huang
- Department of Oncology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shuning Tian
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China
| | - Zhenqing Feng
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Nabi Xinhua
- Department of Pharmacology, Xinjiang Medical University, Urumqi, China.
| | - Qi Tang
- NHC Key Laboratory of Antibody Technique, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China; Department of Pathology, Changzhou No. 2 People's Hospital Affiliated with Nanjing Medical University, Changzhou, China.
| | - Yuan Mao
- Department of Oncology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China; Department of Oncology, Geriatric Hospital of Nanjing Medical University, Nanjing, China; Department of Thoracic Surgery, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, China.
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Chen Q, Hu J, Hu X, Koh K, Chen H. Current methods and emerging approaches for detection of programmed death ligand 1. Biosens Bioelectron 2022; 208:114179. [PMID: 35364526 DOI: 10.1016/j.bios.2022.114179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 02/21/2022] [Accepted: 03/08/2022] [Indexed: 02/08/2023]
Abstract
Various tumor cells overexpress programmed death ligand 1 (PD-L1), a main immune checkpoint protein (ICP) embedded in the tumor cells membrane, to evade immune recognition through the interaction between PD-L1 and its receptor programmed death 1 (PD-1) which is from T-cells for maintaining immune tolerance. So inhibitors targeting the PD-1 or PD-L1 can block the PD-1/PD-L1 signaling pathway to restore the recognition activity of the immune system to tumor cells, which also have been utilized as a novel approach to improve the clinical therapeutic effect for cancer patients. Since not all cancer patients can respond to these inhibitors effectively, previous diagnosis of PD-L1 is significant to target the right treatments for cancer patients. This review pays attention to the PD-L1 detection and recent progress in the measurement of PD-L1 concentration, including various detection methods based on optical sensors as well as electrochemical assays. Apart from above those, we also focus on the prospects of PD-L1 detection in precision medicine.
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Affiliation(s)
- Qiang Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China; School of Medicine, Shanghai University, Shanghai, 200444, PR China
| | - Junjie Hu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Xiaojun Hu
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Kwangnak Koh
- Institute of General Education, Pusan National University, Busan, 609-735, Republic of Korea
| | - Hongxia Chen
- School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
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Zhao J, Zhao F, Li H, Xiong Y, Cai S, Wang C, Chen Y, Han N, Yang R. Magnet-assisted electrochemical immunosensor based on surface-clean Pd-Au nanosheets for sensitive detection of SARS-CoV-2 spike protein. Electrochim Acta 2022; 404:139766. [PMID: 34961798 PMCID: PMC8696018 DOI: 10.1016/j.electacta.2021.139766] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 12/18/2022]
Abstract
Tracking and monitoring of low concentrations of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can effectively control asymptomatic transmission of current coronavirus disease 2019 (COVID-19) in the early stages of infection. Here, we highlight an electrochemical immunosensor for sensitive detection of SARS-CoV-2 antigen marker spike protein. The surface-clean Pd-Au nanosheets as a substrate for efficient sensing and signal output have been synthesized. The morphology, chemical states and excellent stable electrochemical properties of this surface-clean heterostructures have been studied. Functionalized superparamagnetic nanoparticles (MNPs) were introduced as sample separators and signal amplifiers. This biosensor was tested in phosphate buffered saline (PBS) and nasopharyngeal samples. The results showed that the sensor has a wide linear dynamic range (0.01 ng mL−1 to 1000 ng mL−1) with a low detection limit (0.0072 ng mL−1), which achieved stable and sensitive detection of the spike protein. Therefore, this immunosensing method provides a promising electrochemical measurement tool, which can furnish ideas for early screening and the reasonable optimization of detection methods of SARS-CoV-2.
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Affiliation(s)
- Jialin Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China.,Sino-Danish College, Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fu Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China
| | - Haolin Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China.,Sino-Danish College, Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Youlin Xiong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China
| | - Shuangfei Cai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China
| | - Chen Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China
| | - Yunfa Chen
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Ning Han
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Rong Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, No.11 ZhongGuanCun BeiYiTiao, Beijing 100190, China.,Sino-Danish College, Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100049, China
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Chen J, Hu R, Zhu H, Wang Y, Mao Z, Hu J, Hu X, Chen H. Supramolecule Stripped MoS2 Nanosheets for Enhanced Surface Plasmon Resonance Spectroscopy Application. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jie Chen
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
- School of Medicine, Shanghai University, Shanghai 200444, P. R. China
| | - Ruhui Hu
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Han Zhu
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Yindian Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Zhihui Mao
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
| | - JunJie Hu
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Xiaojun Hu
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Hongxia Chen
- School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
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