1
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Ge F, Ding W, Han C, Zhang L, Liu Q, Zhao J, Luo Z, Jia C, Qu P, Zhang L. Electrochemical Sensor for the Detection and Accurate Early Diagnosis of Ovarian Cancer. ACS Sens 2024. [PMID: 38776471 DOI: 10.1021/acssensors.3c02776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Ovarian cancer (OC) has the highest mortality rate among malignant tumors, primarily because it is difficult to diagnose early. Exosomes, a type of extracellular vesicle rich in parental information, have garnered significant attention in the field of cancer diagnosis and treatment. They play an important regulatory role in the occurrence, development, and metastasis of OC. Consequently, exosomes have emerged as noninvasive biomarkers for early cancer detection. Therefore, identifying cancer-derived exosomes may offer a novel biomarker for the early detection of OC. In this study, we developed a metal-organic frameworks assembled "double hook"-type aptamer electrochemical sensor, which enables accurate early diagnosis of OC. Under optimal experimental conditions, electrochemical impedance spectroscopy technology demonstrated a good linear relationship within the concentration range of 31-3.1 × 106 particles per microliter, with a detection limit as low as 12 particles per microliter. The universal exosome detection platform is constructed, and this platform can not only differentiate between high-grade serous ovarian cancer (HGSOC) patients and healthy individuals but also distinguish between HGSOC patients and nonhigh-grade serous OC (non-HGSOC). Consequently, it provides a novel strategy for the early diagnosis of OC and holds great significance in clinical differential diagnosis.
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Affiliation(s)
- Feng Ge
- Clinical School of Obstetrics and Gynecology Center, Tianjin Medical University, Tianjin 301700, China
| | - Wei Ding
- Department of Gynecological Oncology, Tianjin Central Hospital of Gynecology and Obstetrics, Tianjin 300100, China
| | - Cong Han
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300350, P. R. China
| | - Limin Zhang
- Department of Internal Medicine, Leling Hospital of Traditional Chinese Medicine, Dezhou, Shandong 253600, P. R. China
| | - Qirui Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300350, P. R. China
| | - Jian Zhao
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300350, P. R. China
| | - Zhaofeng Luo
- Hangzhong Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, P. R. China
| | - Chao Jia
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300350, P. R. China
| | - Pengpeng Qu
- Clinical School of Obstetrics and Gynecology Center, Tianjin Medical University, Tianjin 301700, China
- Department of Gynecological Oncology, Tianjin Central Hospital of Gynecology and Obstetrics, Tianjin 300100, China
| | - Liyun Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300350, P. R. China
- Nankai International Advanced Research Institute, Shenzhen, Guangdong 518045, P. R. China
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2
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Xie F, Qiu J, Sun C, Feng L, Jun Y, Luo C, Guo X, Zhang B, Zhou Y, Wang Y, Zhang L, Wang Q. Development of a Specific Aptamer-Modified Nano-System to Treat Esophageal Squamous Cell Carcinoma. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309084. [PMID: 38704694 DOI: 10.1002/advs.202309084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/23/2024] [Indexed: 05/07/2024]
Abstract
Esophageal squamous cell carcinoma (ESCC) is a prevalent gastrointestinal cancer characterized by high mortality and an unfavorable prognosis. While combination therapies involving surgery, chemotherapy, and radiation therapy are advancing, targeted therapy for ESCC remains underdeveloped. As a result, the overall five-year survival rate for ESCC is still below 20%. Herein, ESCC-specific DNA aptamers and an innovative aptamer-modified nano-system is introduced for targeted drug and gene delivery to effectively inhibit ESCC. The EA1 ssDNA aptamer, which binds robustly to ESCC cells with high specificity and affinity, is identified using cell-based systematic evolution of ligands by exponential enrichment (cell-SELEX). An EA1-modified nano-system is developed using a natural egg yolk lipid nanovector (EA1-EYLNs-PTX/siEFNA1) that concurrently loads paclitaxel (PTX) and a small interfering RNA of Ephrin A1 (EFNA1). This combination counters ESCC's proliferation, migration, invasion, and lung metastasis. Notably, EFNA1 is overexpressed in ESCC tumors with lung metastasis and has an inverse correlation with ESCC patient prognosis. The EA1-EYLNs-PTX/siEFNA1 nano-system offers effective drug delivery and tumor targeting, resulting in significantly improved therapeutic efficacy against ESCC tumors. These insights suggest that aptamer-modified nano-systems can deliver drugs and genes with superior tumor-targeting, potentially revolutionizing targeted therapy in ESCC.
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Affiliation(s)
- Fei Xie
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Jinrong Qiu
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Congyong Sun
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Lulu Feng
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Yali Jun
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
- The Comprehensive Cancer Center, Department of Clinical Oncology, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Chao Luo
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Xiamei Guo
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Bowei Zhang
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Yu Zhou
- The Comprehensive Cancer Center, Department of Clinical Oncology, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Yuting Wang
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Li Zhang
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
| | - Qilong Wang
- The Comprehensive Cancer Center, Department of Central Laboratory, The Affiliated Huaian No.1 People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, 223300, China
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3
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Wang Q, Chen B, Duan C, Wang T, Lou X, Dai J, Xia F. Unfolded Protein-Based Sandwich AIE Probe Imparts High Fluorescent Contrast for Pan-Cancer Surgical Navigation. Anal Chem 2024; 96:3609-3617. [PMID: 38364862 DOI: 10.1021/acs.analchem.3c05735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Fluorescence imaging-guided navigation for cancer surgery has a promising clinical application. However, pan-cancer encompasses a wide variety of cancer types with significant heterogeneity, resulting in the lack of universal and highly contrasted fluorescent probes for surgical navigation. Here, we developed an aggregation-induced emission (AIE) probe (MI-AIE-TsG, MAT) with dual activation for pan-cancer surgical navigation. MAT weakly activates fluorescence by targeting the SUR1 protein on the endoplasmic reticulum (ER) through the TsG group. Subsequently, the sulfhydryl groups on the unfolded proteins, which are highly enriched in cancer ER, react with the maleimide (MI) of MAT through the thiol-ene click reaction, further enhancing the fluorescence. The formation of a SUR1-MAT-unfolded protein sandwich complex reinforces the restriction of intramolecular motion and eliminates photoinduced electron transfer of MAT, leading to high signal-to-noise (9.2) fluorescence imaging and use for surgical navigation of pan-cancer. The generally high content of unfolded proteins in cancer cells makes MAT imaging generalizable, and it currently has proven feasibility in ovarian, cervical, and breast cancers. Meanwhile, MAT promotes cellular autophagy by hindering protein folding, thereby inhibiting cancer cell proliferation. This generalizable, high-contrast AIE fluorescent probe spans the heterogeneity of pancreatic cancer, enabling precise pancreatic cancer surgery navigation and treatment.
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Affiliation(s)
- Quan Wang
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Biao Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430034, China
| | - Chong Duan
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Tingting Wang
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xiaoding Lou
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Jun Dai
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430034, China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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Wang R, Du Y, Fu Y, Guo Y, Gao X, Guo X, Wei J, Yang Y. Ceria-Based Nanozymes in Point-of-Care Diagnosis: An Emerging Futuristic Approach for Biosensing. ACS Sens 2023; 8:4442-4467. [PMID: 38091479 DOI: 10.1021/acssensors.3c01692] [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] [Indexed: 12/23/2023]
Abstract
In recent years, there has been a notable increase in interest surrounding nanozymes due to their ability to imitate the functions and address the limitations of natural enzymes. The scientific community has been greatly intrigued by the study of nanoceria, primarily because of their distinctive physicochemical characteristics, which include a variety of enzyme-like activities, affordability, exceptional stability, and the ability to easily modify their surfaces. Consequently, nanoceria have found extensive use in various biosensing applications. However, the impact of its redox activity on the enzymatic catalytic mechanism remains a subject of debate, as conflicting findings in the literature have presented both pro-oxidant and antioxidant effects. Herein, we creatively propose a seesaw model to clarify the regulatory mechanism on redox balance and survey possible mechanisms of multienzyme mimetic properties of nanoceria. In addition, this review aims to showcase the latest advancements in this field by systematically discussing over 180 research articles elucidating the significance of ceria-based nanozymes in enhancing, downsizing, and enhancing the efficacy of point-of-care (POC) diagnostics. These advancements align with the ASSURED criteria established by the World Health Organization (WHO). Furthermore, this review also examines potential constraints in order to offer readers a concise overview of the emerging role of nanoceria in the advancement of POC diagnostic systems for future biosensing applications.
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Affiliation(s)
- Ruixue Wang
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
| | - Yuanyuan Du
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
| | - Ying Fu
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
| | - Yingxin Guo
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
| | - Xing Gao
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan 250200, P. R. China
| | - Xingqi Guo
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian 271018, P. R. China
| | - Jingjing Wei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250200, P. R. China
| | - Yanzhao Yang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250200, P. R. China
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5
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Lin B, Xiao F, Jiang J, Zhao Z, Zhou X. Engineered aptamers for molecular imaging. Chem Sci 2023; 14:14039-14061. [PMID: 38098720 PMCID: PMC10718180 DOI: 10.1039/d3sc03989g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/07/2023] [Indexed: 12/17/2023] Open
Abstract
Molecular imaging, including quantification and molecular interaction studies, plays a crucial role in visualizing and analysing molecular events occurring within cells or organisms, thus facilitating the understanding of biological processes. Moreover, molecular imaging offers promising applications for early disease diagnosis and therapeutic evaluation. Aptamers are oligonucleotides that can recognize targets with a high affinity and specificity by folding themselves into various three-dimensional structures, thus serving as ideal molecular recognition elements in molecular imaging. This review summarizes the commonly employed aptamers in molecular imaging and outlines the prevalent design approaches for their applications. Furthermore, it highlights the successful application of aptamers to a wide range of targets and imaging modalities. Finally, the review concludes with a forward-looking perspective on future advancements in aptamer-based molecular imaging.
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Affiliation(s)
- Bingqian Lin
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers-Ministry of Education, Department of Hematology of Zhongnan Hospital, Taikang Center for Life and Medical Sciences, Wuhan University Wuhan 430072 China
| | - Feng Xiao
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers-Ministry of Education, Department of Hematology of Zhongnan Hospital, Taikang Center for Life and Medical Sciences, Wuhan University Wuhan 430072 China
| | - Jinting Jiang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers-Ministry of Education, Department of Hematology of Zhongnan Hospital, Taikang Center for Life and Medical Sciences, Wuhan University Wuhan 430072 China
| | - Zhengjia Zhao
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers-Ministry of Education, Department of Hematology of Zhongnan Hospital, Taikang Center for Life and Medical Sciences, Wuhan University Wuhan 430072 China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers-Ministry of Education, Department of Hematology of Zhongnan Hospital, Taikang Center for Life and Medical Sciences, Wuhan University Wuhan 430072 China
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6
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Huang Z, Luo X, Yan F, Zhou B. Homogeneous Electrochemical Aptasensor for Sensitive Detection of Zearalenone Using Nanocomposite Probe and Silica Nanochannel Film. Molecules 2023; 28:7241. [PMID: 37959660 PMCID: PMC10647457 DOI: 10.3390/molecules28217241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
Developing rapid and efficient analytical methods is of great importance for food safety Herein, we present a novel homogeneous electrochemical aptasensor for ultrasensitive quantitative determination of zearalenone (ZEN) based on a nanocomposite probe and silica nanochannel film. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and UV-Vis characterization techniques confirm that graphene oxide (GO) bears an aromatic conjugated structure, along with hydroxyl and carboxyl groups, facilitating the subsequent adsorption of cationic redox hexa-ammine-ruthenium (III) (Ru(NH3)63+) and anionic ZEN aptamer, to form a Ru(NH3)63+-ZEN aptamer-GO nanocomposite probe in a homogeneous solution. Vertically-ordered mesoporous silica films (VMSF) bearing silanol groups can be simply grown on the solid indium tin oxide (ITO) electrode surface and enable the selective preconcentration of Ru(NH3)63+, eventually leading to signal amplification. Since the detachment of Ru(NH3)63+ from the GO surface by the recognized ZEN aptamer in the presence of ZEN, more free Ru(NH3)63+ is released in solution and produces enhanced redox signals at the VMSF modified ITO electrode, allowing quantitative detection of ZEN. On the basis of the above sensing strategy, the proposed homogeneity, due to the assistance of graphene, as well as of the signal amplification and anti-fouling effects of VMSF, accurate analysis of ZEN can be realized in maize and Chinese chestnut samples.
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Affiliation(s)
- Zhongnan Huang
- Collaborative Innovation Centre of Regenerative Medicine and Medical Bioresource Development, Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning 530021, China;
| | - Xuan Luo
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Fei Yan
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Bo Zhou
- Collaborative Innovation Centre of Regenerative Medicine and Medical Bioresource Development, Application Co-Constructed by the Province and Ministry, Guangxi Medical University, Nanning 530021, China;
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Mishra Y, Chattaraj A, Mishra V, Ranjan A, Tambuwala MM. Aptamers Versus Vascular Endothelial Growth Factor (VEGF): A New Battle against Ovarian Cancer. Pharmaceuticals (Basel) 2023; 16:849. [PMID: 37375796 DOI: 10.3390/ph16060849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/28/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Cancer is one of the diseases that causes a high mortality as it involves unregulated and abnormal cell growth proliferation that can manifest in any body region. One of the typical ovarian cancer symptoms is damage to the female reproductive system. The death rate can be reduced through early detection of the ovarian cancer. Promising probes that can detect ovarian cancer are suitable aptamers. Aptamers, i.e., so-called chemical antibodies, have a strong affinity for the target biomarker and can typically be identified starting from a random library of oligonucleotides. Compared with other probes, ovarian cancer targeting using aptamers has demonstrated superior detection effectiveness. Various aptamers have been selected to detect the ovarian tumor biomarker, vascular endothelial growth factor (VEGF). The present review highlights the development of particular aptamers that target VEGF and detect ovarian cancer at its earliest stages. The therapeutic efficacy of aptamers in ovarian cancer treatment is also discussed.
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Affiliation(s)
- Yachana Mishra
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Aditi Chattaraj
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Abhigyan Ranjan
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Murtaza M Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, UK
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Hu R, Ren XX, Song P, Wang AJ, Mei LP, Feng JJ. Hollow cage-like PtCu nanozyme-regulated photo-activity of porous CdIn 2S 4/SnO 2 heterojunctions for ultrasensitive PEC sensing of streptomycin. Biosens Bioelectron 2023; 236:115425. [PMID: 37247466 DOI: 10.1016/j.bios.2023.115425] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
Streptomycin (STR) is extensively employed for preventive and curative purposes in animals, which is accumulated in human body through food chain and induces serious health problems. Herein, highly photoactive type II heterojunctions of porous CdIn2S4/SnO2 microspheres were initially prepared, which can effectively inhibit the recombination of the charge-hole pairs. Besides, the peroxidase-mimicking catalytic property of the hollow PtCu nanocages (PtCu NCs) was carefully investigated by UV-vis spectroscopy, where catalytic oxidation of tetramethylbenzidine behaved as the benchmarked reaction. On such basis, a highly selective photoelectrochemical (PEC) aptasensor was established with the CdIn2S4/SnO2 heterojunctions for bioanalysis of streptomycin, coupled by the PtCu NCs nanozyme-catalyzed biocatalytic precipitation to achieve signal magnification. Specifically, the home-made nanozyme was applied for catalytic oxidation of 3,3'-diaminobenzidine to generate insulating precipitate in aqueous H2O2 system and thereby block the light harvesting on the photoanode, showing steeply declined PEC responses. The as-built aptasensor showed a broad linear range of 0.01-200 nM with a low limit of detection of 7.50 pM (S/N = 3) for such analysis, combined by exploring its practical detection in milk samples. This work shows excellent nanozyme-catalyzed signal amplification for fabrication of ultrasensitive PEC biosensors towards other antibiotics detection.
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Affiliation(s)
- Rui Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, College of Life Science, Zhejiang Normal University, Jinhua, 321004, China
| | - Xin-Xin Ren
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, College of Life Science, Zhejiang Normal University, Jinhua, 321004, China
| | - Pei Song
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, College of Life Science, Zhejiang Normal University, Jinhua, 321004, China; Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, 321000, China
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, College of Life Science, Zhejiang Normal University, Jinhua, 321004, China
| | - Li-Ping Mei
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, College of Life Science, Zhejiang Normal University, Jinhua, 321004, China.
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, College of Life Science, Zhejiang Normal University, Jinhua, 321004, China.
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Development and characterization of DNA aptamer against Retinoblastoma by Cell-SELEX. Sci Rep 2022; 12:16178. [PMID: 36171412 PMCID: PMC9519959 DOI: 10.1038/s41598-022-20660-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/16/2022] [Indexed: 12/02/2022] Open
Abstract
Retinoblastoma (RB) is the most common paediatric intraocular tumour. The management of RB has improved the survival and vision with recent advances in the treatment. Improved therapeutic approaches focussing on targeting tumours and minimizing the treatment-associated side effects are being developed. In this study, we generated a ssDNA aptamer against RB by cell-SELEX and high-throughput sequencing using Weri-RB1 cell line as the target, and Muller glial cell line Mio-M1 as the control. Three aptamers were selected based on the number of repetitions in NGS and phylogenetic relationship and evaluated by flow cytometry to assess their binding affinity and selectivity. The dissociation constant, Kd values of three selected aptamers were found to be in the nanomolar range. Aptamer VRF-CSRB-01 with the best binding affinity and a Kd value of 49.41 ± 7.87 nM was further characterized. The proteinase and temperature treatment indicated that VRF-CSRB-01 targets surface proteins, and has a good binding affinity and excellent selectivity under physiological conditions. The aptamer VRF-CSRB-01 was stable over 72 h in serum and 96 h in cerebral spinal fluid and vitreous. With the high affinity, specificity, stability and specific recognition of clinical RB tumours, VRF-CSRB-01 aptamer holds potential for application in diagnosis and targeting RB.
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Sykes KS, White RJ. Effects of Nucleic Acid Structural Heterogeneity on the Electrochemistry of Tethered Redox Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7322-7330. [PMID: 35639972 PMCID: PMC10150402 DOI: 10.1021/acs.langmuir.2c00840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The cation condensation-induced collapse of electrode-bound nucleic acids and the resulting change in the electrochemical signal is a useful tool to predict the structure and redox probe location of heterogeneous structures of surface-tethered DNA probes─a common architecture employed in the development of electrochemical sensors. In this paper, we measure the faradaic current of an appended redox molecule at the 3' position of the nucleic acid using cyclic voltammetry before and after nucleic acid collapse for various nucleic acid architectures and heterogeneous mixtures on the same electrode surface. The voltammetric peak current change with collapse correlates with the proximity of the redox molecules from the surface. For stem-loop probes, the terminal methylene blue is initially held closer to the surface, such that inducing collapse, by reducing the dielectric permittivity of the interrogation solution, results in a ∼30% increase in current. However, when incorporating pseudoknot probes that hold methylene blue further away from the electrode surface, the current change is much larger (∼120%), indicating a larger conformation change. Upon a 50:50 ratio of the two, we observe a change in current that relates to the ratiometric distribution of the probe used to make the surfaces. Additionally, using cyclic voltammetry, we find that the change between diffusion-limited and diffusion-independent peak currents is dependent upon the distinct structural characteristics of DNA probes on the surface (stem-loop or pseudoknot), as well as the ratios of different DNA probes on the surface. Thus, we demonstrate that the heterogeneous nature of DNA probes governs the corresponding electrochemical signals, which can lead to a better understanding on how to predict the structures of functional nucleic acids on electrode surfaces and how this affects surface-to-surface variability and electrochemical response.
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Affiliation(s)
- Kiana S. Sykes
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
| | - Ryan J. White
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
- Department of Electrical and Computer Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0172, United States
- Corresponding Author:
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11
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Li W, Wu CC, Wang S, Zhou L, Qiao L, Ba W, Liu F, Zhan L, Chen H, Yu JS, Fang J. Identification of the target protein of the metastatic colorectal cancer-specific aptamer W3 as a biomarker by aptamer-based target cells sorting and functional characterization. Biosens Bioelectron 2022; 213:114451. [PMID: 35700603 DOI: 10.1016/j.bios.2022.114451] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/24/2022] [Accepted: 05/31/2022] [Indexed: 11/19/2022]
Abstract
Metastasis is a leading cause of cancer-related deaths. Hence, the discovery of more reliable metastasis-related biomarkers is crucial to improve the survival rate of cancer patients. W3 is an aptamer previously produced by the subtractive cell-SELEX using metastatic colorectal cancer cells as target cells and non-metastatic cells as negative cells. In this study, we aimed to evaluate whether the target molecule of W3 can potentially act as a metastatic biomarker. First, we obtained two cell subpopulations with different expression levels of the target molecule by W3-based cell sorting. Subsequently, we demonstrated that W3high cells have a higher metastatic potential than W3low cells both in vitro and in vivo. Further, immunohistochemical analysis revealed that W3 target expression is positively associated with metastasis and poor prognosis of CRC patients. Using mass spectrometry (MS) combined with pull-down, we identified that Ephrin type-A receptor 2 (EphA2) is the target of W3. EphA2's potential as a metastatic predictor was demonstrated by capturing W3-positive circulating tumor cells from CRC patients using a W3 probe. Based on these results, we put forward a stratagem for cell-SELEX-based biomarker discovery: selecting an aptamer through subtractive cell-SELEX towards the phenotype of interest; evaluating the functional phenotype of the target molecule by aptamer-based target cell sorting and analysis of clinical samples; and identifying the aptamer's target molecule using MS and aptamer-based target enrichment. This stratagem not only shortens the time for the clinical application of aptamers but also enables a more targeted and efficient discovery of biomarkers.
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Affiliation(s)
- Wanming Li
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Chia-Chun Wu
- Molecular Medicine Research Center, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan 333, Taiwan; Liver Research Center, Chang Gung Memorial Hospital, Linkou 33305, Taiwan; Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33302, Taiwan
| | - Shuo Wang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China; Analytical Instrumentation Center, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Linlin Zhou
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Lei Qiao
- Colorectal & Henia Minimally Invasive Surgery Unit, Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, 110004, PR China
| | - Wei Ba
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Furong Liu
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Linan Zhan
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Hang Chen
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China
| | - Jau-Song Yu
- Molecular Medicine Research Center, Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan 333, Taiwan; Liver Research Center, Chang Gung Memorial Hospital, Linkou 33305, Taiwan; Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33302, Taiwan.
| | - Jin Fang
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, 110122, PR China.
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Screening and Specificity Analysis of Aptamer in Infiltrating Ductal Carcinoma of Breast. ChemistrySelect 2022. [DOI: 10.1002/slct.202200070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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CRISPR/Cas12a-Derived electrochemical aptasensor for ultrasensitive detection of COVID-19 nucleocapsid protein. Biosens Bioelectron 2022; 200:113922. [PMID: 34990959 DOI: 10.1016/j.bios.2021.113922] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/21/2021] [Accepted: 12/25/2021] [Indexed: 02/06/2023]
Abstract
Fast, affordable, portable, and sensitive technology to detect COVID-19 is critical to address the current outbreak. Here, we present a CRISPR/Cas12a-derived electrochemical aptasensor for cost-effective, fast, and ultrasensitive COVID-19 nucleocapsid protein (Np) detection. First, an electrochemical sensing interface was fabricated by immobilizing methylene blue labeled poly adenines DNA sequence (polyA-MB electrochemical reporter) on a gold electrode surface. Second, an arched probe was prepared via hybridization of Np aptamer and an activator strand. In the presence of COVID-19 Np, the activator strand could be released from the arched probe due to the specific interaction between the target and the aptamer, which then activated the trans-cleavage activity of the CRISPR/Cas12a system. Subsequently, the polyA-MB reporters were cleaved from the electrode surface, decreasing the current of differential pulse voltammetry (DPV) at a potential of -0.27 V(vs. Ag/AgCl). The CRISPR/Cas12a-derived electrochemical aptasensor shows a highly efficient performance for COVID-19 Np detection in 50 pg mL-1 to 100 ng mL-1 with a limit of detection (LOD) low to 16.5 pg mL-1. Notably, the whole process of one test can be completed within 30 min. Simultaneously, the aptasensor displays a high selectivity to other proteins. The further measurements demonstrate that the aptasensor is robust in a natural system for point-of-care testing, such as in tap water, milk, or serum. The aptasensor is universal and expandable and holds great potential in the COVID-19 early diagnosis, environmental surveillance, food security, and other aspects.
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Development of an optimization pipeline of asymmetric PCR towards the generation of DNA aptamers: a guide for beginners. World J Microbiol Biotechnol 2022; 38:31. [PMID: 34989899 DOI: 10.1007/s11274-021-03209-w] [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: 10/05/2021] [Accepted: 12/11/2021] [Indexed: 01/08/2023]
Abstract
Asymmetric PCR is one of the most utilized strategies in ssDNA generation towards DNA aptamer generation due to its low cost, robustness and the low amount of starting template. Despite its advantages, careful optimization of the asymmetric PCR is still warranted to optimize the yield of ssDNA. In this present study, we have developed an extensive optimization pipeline that involves the optimization of symmetric PCR initially followed by the optimization of asymmetric PCR. In the asymmetric PCR, optimization of primer amounts/ratios, PCR cycles, annealing temperatures, template concentrations, Mg2+/dNTP concentrations and the amounts of Taq Polymerase was carried out. To further boost the generation of ssDNA, we have also integrated an additional single-stranded DNA generation method, either via lambda exonuclease or biotin-streptavidin-based separation into the optimization pipeline to further improve the yield of ssDNA generation. We have acquired 700 ± 11.3 and 820 ± 19.2 nM for A-PCR-lambda exonuclease and A-PCR-biotin-streptavidin-based separation, respectively. We urge to develop a separate optimization pipeline of asymmetric PCR for each different randomized ssDNA library before embarking on any SELEX studies.
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