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Zhang T, Yin K, Niu X, Bai X, Wang Z, Ji M, Yuan B. Development of Bivalent Aptamer-DNA Carrier-Doxorubicin Conjugates for Targeted Killing of Esophageal Squamous Cell Carcinoma Cells. Int J Mol Sci 2024; 25:7959. [PMID: 39063201 PMCID: PMC11276760 DOI: 10.3390/ijms25147959] [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: 06/19/2024] [Revised: 07/17/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
Esophageal cancer ranks the seventh in cancer incidence and the sixth in cancer death. Esophageal squamous cell carcinoma (ESCC) accounts for approximately 90% of the total cases of esophageal cancer. Chemotherapy is the most effective drug-based method for treatment of esophageal cancer. However, severe side effects of traditional chemotherapy limit its treatment efficacy. Targeted chemotherapy can deliver chemotherapeutic drugs to cancer cells and specifically kill these cells with reduced side effects. In the work, the bivalent aptamer-DNA carrier (BAD) was designed by using an ESCC cell-specific aptamer as the recognition molecule and a GC base-rich DNA sequence as the drug carrier. With doxorubicin (Dox) as chemotherapeutic drugs, the bivalent aptamer-DNA-Dox conjugate (BADD) was constructed for targeted killing of ESCC cells. Firstly, the truncated A2(35) aptamer with a retained binding ability was obtained through optimization of an intact A2(80) aptamer and was used to fuse with DNA carrier sequences for constructing the BAD through simple DNA hybridization. The results of gel electrophoresis and flow cytometry analysis showed that the BAD was successfully constructed and had a stronger binding affinity than monovalent A2(35). Then, the BAD was loaded with Dox drugs to construct the BADD through noncovalent intercalation. The results of fluorescence spectra and flow cytometry assays showed that the BADD was successfully constructed and can bind to target cells strongly. Confocal imaging further displayed that the BADD can be specifically internalized into target cells and release Dox. The results of CCK-8 assays, Calcein AM/PI staining, and wound healing assays demonstrated that the BADD can specifically kill target cells, but not control cells. Our results demonstrate that the developed BADD can specifically deliver doxorubicin to target ESCC cells and selectively kill these cells, offering a potentially effective strategy for targeted chemotherapy of ESCC.
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Affiliation(s)
- Tianlu Zhang
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
| | - Kai Yin
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
| | - Xidong Niu
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
| | - Xue Bai
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
| | - Zhaoting Wang
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
| | - Mengmeng Ji
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
| | - Baoyin Yuan
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China; (T.Z.); (K.Y.); (X.N.); (X.B.); (Z.W.); (M.J.)
- Henan Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou 450001, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou 450001, China
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Li Y, Wang H, Chen Y, Ding L, Ju H. In Situ Glycan Analysis and Editing in Living Systems. JACS AU 2024; 4:384-401. [PMID: 38425935 PMCID: PMC10900212 DOI: 10.1021/jacsau.3c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 03/02/2024]
Abstract
Besides proteins and nucleic acids, carbohydrates are also ubiquitous building blocks of living systems. Approximately 70% of mammalian proteins are glycosylated. Glycans not only provide structural support for living systems but also act as crucial regulators of cellular functions. As a result, they are considered essential pieces of the life science puzzle. However, research on glycans has lagged far behind that on proteins and nucleic acids. The main reason is that glycans are not direct products of gene coding, and their synthesis is nontemplated. In addition, the diversity of monosaccharide species and their linkage patterns contribute to the complexity of the glycan structures, which is the molecular basis for their diverse functions. Research in glycobiology is extremely challenging, especially for the in situ elucidation of glycan structures and functions. There is an urgent need to develop highly specific glycan labeling tools and imaging methods and devise glycan editing strategies. This Perspective focuses on the challenges of in situ analysis of glycans in living systems at three spatial levels (i.e., cell, tissue, and in vivo) and highlights recent advances and directions in glycan labeling, imaging, and editing tools. We believe that examining the current development landscape and the existing bottlenecks can drive the evolution of in situ glycan analysis and intervention strategies and provide glycan-based insights for clinical diagnosis and therapeutics.
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Affiliation(s)
- Yiran Li
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Haiqi Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Yunlong Chen
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Lin Ding
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
- Chemistry
and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Huangxian Ju
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
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Liu S, Zhao F, Xu K, Cao M, Sohail M, Li B, Zhang X. Harnessing aptamers for the biosensing of cell surface glycans - A review. Anal Chim Acta 2024; 1288:342044. [PMID: 38220315 DOI: 10.1016/j.aca.2023.342044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 01/16/2024]
Abstract
Cell surface glycans (CSGs) are essential for cell recognition, adhesion, and invasion, and they also serve as disease biomarkers. Traditional CSG recognition using lectins has limitations such as limited specificity, low stability, high cytotoxicity, and multivalent binding. Aptamers, known for their specific binding capacity to target molecules, are increasingly being employed in the biosensing of CSGs. Aptamers offer the advantage of high flexibility, small size, straightforward modification, and monovalent recognition, enabling their integration into the profiling of CSGs on living cells. In this review, we summarize representative examples of aptamer-based CSG biosensing and identify two strategies for harnessing aptamers in CSG detection: direct recognition based on aptamer-CSG binding and indirect recognition through protein localization. These strategies enable the generation of diverse signals including fluorescence, electrochemical, photoacoustic, and electrochemiluminescence signals for CSG detection. The advantages, challenges, and future perspectives of using aptamers for CSG biosensing are also discussed.
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Affiliation(s)
- Sirui Liu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Furong Zhao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Ke Xu
- Department of Cardiology, Nanjing Yuhua Hospital, Nanjing, 210012, China
| | - Min Cao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Muhammad Sohail
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China
| | - Bingzhi Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China.
| | - Xing Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, China.
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Tang J, Li B, Qi C, Wang Z, Yin K, Guo L, Zhang W, Yuan B. Imaging specific cell-surface sialylation using DNA dendrimer-assisted FRET. Talanta 2022; 243:123399. [DOI: 10.1016/j.talanta.2022.123399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/12/2022] [Accepted: 03/17/2022] [Indexed: 11/30/2022]
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Suraritdechachai S, Lakkanasirorat B, Uttamapinant C. Molecular probes for cellular imaging of post-translational proteoforms. RSC Chem Biol 2022; 3:201-219. [PMID: 35360891 PMCID: PMC8826509 DOI: 10.1039/d1cb00190f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/04/2022] [Indexed: 12/29/2022] Open
Abstract
Specific post-translational modification (PTM) states of a protein affect its property and function; understanding their dynamics in cells would provide deep insight into diverse signaling pathways and biological processes. However, it is not trivial to visualize post-translational modifications in a protein- and site-specific manner, especially in a living-cell context. Herein, we review recent advances in the development of molecular imaging tools to detect diverse classes of post-translational proteoforms in individual cells, and their applications in studying precise roles of PTMs in regulating the function of cellular proteins.
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Affiliation(s)
- Surased Suraritdechachai
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC) Rayong Thailand
| | - Benya Lakkanasirorat
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC) Rayong Thailand
| | - Chayasith Uttamapinant
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC) Rayong Thailand
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Fu Y, Qian H, Zhou X, Wu Y, Song L, Chen K, Bai D, Yang Y, Li J, Xie G. Proximity ligation assay mediated rolling circle amplification strategy for in situ amplified imaging of glycosylated PD-L1. Anal Bioanal Chem 2021; 413:6929-6939. [PMID: 34523014 DOI: 10.1007/s00216-021-03659-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 11/30/2022]
Abstract
Glycosylated PD-L1 is a more reliable biomarker for immune checkpoint therapy and plays important roles in tumor immunity. Glycosylation of PD-L1 hinders antibody-based detection, which is partially responsible for the inconsistency between PD-L1 immunohistochemical results and therapeutic treatment response. Herein, we present a proximity ligation assay mediated rolling circle amplification (PLA-RCA) strategy for amplified imaging of glycosylated PD-L1 in situ. The strategy relies on a pair of DNA probes: an aptamer probe to specifically recognize cellular surface protein PD-L1 and a glycan conversion (GC) probe for metabolic glycan labeling. Upon proximity ligation of sequence binding to the two probes, the proximity ligation-triggered RCA occurs. The feasibility of the as-proposed strategy has been validated as it realized the visualization of PD-L1 glycosylation in different cancer cells and the monitoring of the variation of PD-L1 glycosylation during drug treatment. Thus, we envision the present work offers a useful alternative to track protein-specific glycosylation and potentially advances the investigation of the dynamic glycan state associated with the disease process.
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Affiliation(s)
- Yixin Fu
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China.,Department of Blood Transfusion, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou, China
| | - Husun Qian
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Xi Zhou
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - You Wu
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Lin Song
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Kena Chen
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Dan Bai
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Yujun Yang
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Junjie Li
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China
| | - Guoming Xie
- Key Laboratory of Laboratory Medical Diagnostics of Education, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing, Sichuan, 400016, People's Republic of China.
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Borum RM, Jokerst JV. Hybridizing clinical translatability with enzyme-free DNA signal amplifiers: recent advances in nucleic acid detection and imaging. Biomater Sci 2021; 9:347-366. [PMID: 32734995 PMCID: PMC7855509 DOI: 10.1039/d0bm00931h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nucleic acids have become viable prognostic and diagnostic biomarkers for a diverse class of diseases, particularly cancer. However, the low femtomolar to attomolar concentration of nucleic acids in human samples require sensors with excellent detection capabilities; many past and current platforms fall short or are economically difficult. Strand-mediated signal amplifiers such as hybridization chain reaction (HCR) and catalytic hairpin assembly (CHA) are superior methods for detecting trace amounts of biomolecules because one target molecule triggers the continuous production of synthetic double-helical DNA. This cascade event is highly discriminatory to the target via sequence specificity, and it can be coupled with fluorescence, electrochemistry, magnetic moment, and electrochemiluminescence for signal reporting. Here, we review recent advances in enhancing the sensing abilities in HCR and CHA for improved live-cell imaging efficiency, lowered limit of detection, and optimized multiplexity. We further outline the potential for clinical translatability of HCR and CHA by summarizing progress in employing these two tools for in vivo imaging, human sample testing, and sensing-treating dualities. We finally discuss their future prospects and suggest clinically-relevant experiments to supplement further related research.
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Affiliation(s)
- Raina M Borum
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.
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Tang J, Lei Y, He X, Liu J, Shi H, Wang K. Recognition-Driven Remodeling of Dual-Split Aptamer Triggering In Situ Hybridization Chain Reaction for Activatable and Autonomous Identification of Cancer Cells. Anal Chem 2020; 92:10839-10846. [PMID: 32618183 DOI: 10.1021/acs.analchem.0c02524] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Proximity-dependent hybridization chain reaction (HCR) has shown great potential in sensing biomolecules on the cell surface. However, the requirement of two adjacent bioevents occurring simultaneously limits its application. To solve the problem, split aptamers with target binding ability were introduced to combine with split triggers for initiating HCR, thus producing a novel dual-split aptamer probe (DSAP). By employing cancer-related receptors as models, in situ HCR on a cancer cell surface induced by recognition-driven remodeling of the DSAP was demonstrated. The DSAP consisted of two sequences. Each contained two segments; one derived from split aptamers and the other originated in split triggers. In the presence of target cells, split aptamers reassembled on the cell surface under the "induced-fit effect", thus forcing two split triggers close to each other. The remodeled DSAP worked as an intact trigger, which opened the H1 hairpin probe and then hybridized with the H2 hairpin probe, thus initiating HCR to produce an activated fluorescence signal. As a proof of concept, human liver cancer SMMC-7721 cells and their split ZY11 aptamer were used to construct the DSAP. Results indicated that the DSAP realized sensitive analysis of target cells, permitting the actual detection of 20 cells in the buffer. Moreover, the specific identification of target cells in mixed cell samples and the quantitative analysis of target cells in serum were also achieved. The DSAP strategy is facile and universal, which not only would expand the application range of HCR but also might be developed as a multitarget detection technique for bioanalysis.
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Affiliation(s)
- Jinlu Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, P. R. China.,Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yanli Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, P. R. China
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, P. R. China
| | - Jianbo Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, P. R. China
| | - Hui Shi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, P. R. China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Changsha 410082, P. R. China
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