1
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Bisht A, Bhowmik S, Patel P, Gupta GD, Kurmi BD. Aptamer as a targeted approach towards treatment of breast cancer. J Drug Target 2024; 32:510-528. [PMID: 38512151 DOI: 10.1080/1061186x.2024.2333866] [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: 11/16/2023] [Accepted: 03/16/2024] [Indexed: 03/22/2024]
Abstract
Aptamers, a novel type of targeted ligand used in drug delivery, have quickly gained popularity due to their high target specificity and affinity. Different aptamer-mediated drug delivery systems, such as aptamer-drug conjugate (ApDC), aptamer-siRNA, and aptamer-functionalised nanoparticle systems, are currently being developed for the successful treatment of cancer based on the excellent properties of aptamers. These systems can decrease potential toxicity and enhance therapeutic efficacy by targeting the drug moiety. In this review, we provide an overview of recent developments in aptamer-mediated delivery systems for cancer therapy, specifically for breast cancer, and talk about the potential applications and current issues of novel aptamer-based techniques. This study in aptamer technology for breast cancer therapy highlights key aptamers targeting well-established biomarkers such as HER2, oestrogen receptor, and progesterone receptor. Additionally, we explore the potential of aptamers in overcoming various challenges such as drug resistance and improving the delivery of therapeutic agents. This review aims to provide a deeper understanding of the present aptamer-based targeted delivery applications through in-depth analysis to increase efficacy and create new therapeutic approaches that may ultimately lead to better treatment outcomes for cancer patients.
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Affiliation(s)
- Anjali Bisht
- Department of Pharmaceutical Quality Assurance, ISF College Pharmacy, Moga, India
| | | | - Preeti Patel
- Department of Pharmaceutical Chemistry, ISF College Pharmacy, Moga, India
| | | | - Balak Das Kurmi
- Department of Pharmaceutics, ISF College Pharmacy, Moga, India
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2
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de Araújo NS, Moreira ADS, Abreu RDS, Junior VV, Antunes D, Mendonça JB, Sassaro TF, Jurberg AD, Ferreira-Reis R, Bastos NC, Fernandes PV, Guimarães ACR, Degrave WMS, Tilli TM, Waghabi MC. Aptamer-Based Recognition of Breast Tumor Cells: A New Era for Breast Cancer Diagnosis. Int J Mol Sci 2024; 25:840. [PMID: 38255914 PMCID: PMC10815801 DOI: 10.3390/ijms25020840] [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: 10/05/2023] [Revised: 10/30/2023] [Accepted: 11/03/2023] [Indexed: 01/24/2024] Open
Abstract
Breast cancer is one of the leading causes of death among women worldwide and can be classified into four major distinct molecular subtypes based on the expression of specific receptors. Despite significant advances, the lack of biomarkers for detailed diagnosis and prognosis remains a major challenge in the field of oncology. This study aimed to identify short single-stranded oligonucleotides known as aptamers to improve breast cancer diagnosis. The Cell-SELEX technique was used to select aptamers specific to the MDA-MB-231 tumor cell line. After selection, five aptamers demonstrated specific recognition for tumor breast cell lines and no binding to non-tumor breast cells. Validation of aptamer specificity revealed recognition of primary and metastatic tumors of all subtypes. In particular, AptaB4 and AptaB5 showed greater recognition of primary tumors and metastatic tissue, respectively. Finally, a computational biology approach was used to identify potential aptamer targets, which indicated that CSKP could interact with AptaB4. These results suggest that aptamers are promising in breast cancer diagnosis and treatment due to their specificity and selectivity.
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Affiliation(s)
- Natassia Silva de Araújo
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Aline dos Santos Moreira
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Rayane da Silva Abreu
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Valdemir Vargas Junior
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Deborah Antunes
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Julia Badaró Mendonça
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Tayanne Felippe Sassaro
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Arnon Dias Jurberg
- Laboratório de Pesquisas sobre o Timo, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (A.D.J.); (R.F.-R.)
- Laboratório de Animais Transgênicos, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, RJ, Brazil
- Instituto de Educação Médica (IDOMED), Universidade Estácio de Sá (UNESA)—Campus Vista Carioca, Rio de Janeiro 20071-004, RJ, Brazil
| | - Rafaella Ferreira-Reis
- Laboratório de Pesquisas sobre o Timo, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (A.D.J.); (R.F.-R.)
| | - Nina Carrossini Bastos
- Divisão de Patologia (DIPAT), Instituto Nacional do Câncer (INCA), Rio de Janeiro 20230-130, RJ, Brazil; (N.C.B.); (P.V.F.)
| | - Priscila Valverde Fernandes
- Divisão de Patologia (DIPAT), Instituto Nacional do Câncer (INCA), Rio de Janeiro 20230-130, RJ, Brazil; (N.C.B.); (P.V.F.)
| | - Ana Carolina Ramos Guimarães
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Wim Maurits Sylvain Degrave
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
| | - Tatiana Martins Tilli
- Laboratório de Fisiopatologia Clínica e Experimental, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil;
- Plataforma de Oncologia Translacional, Centro de Desenvolvimento Tecnológico em Saúde, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil
| | - Mariana Caldas Waghabi
- Laboratório de Genômica Aplicada e Bioinovações, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, RJ, Brazil; (N.S.d.A.); (A.d.S.M.); (R.d.S.A.); (V.V.J.); (D.A.); (J.B.M.); (T.F.S.); (A.C.R.G.); (W.M.S.D.)
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3
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Liu MS, Zhong SS, Jiang S, Wang T, Zhang KH. Bibliometric analysis of aptamer-conjugated nanoparticles for diagnosis in the last two decades. NANOTECHNOLOGY 2023; 35:055102. [PMID: 37879319 DOI: 10.1088/1361-6528/ad06d5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/25/2023] [Indexed: 10/27/2023]
Abstract
Objective.Aptamer-conjugated nanoparticles for diagnosis have recently gained increasing attention. Here, we performed a bibliometric analysis to provide an overview of this field over the past two decades.Methods. The terms 'aptamer, nanoparticles and diagnosis' were used to search for relevant original articles published in English from 2003 to 2022 in the Web of Science database. VOSviewer and CiteSpace software were employed to analyze the development process, knowledge structure, research hotspots, and potential trends in the field of aptamer-conjugated nanoparticles for diagnosis.Results. A total of 1076 original articles were retrieved, with a rapid increase in the annual output and citation. The journal 'Biosensors and Bioelectronics' has contributed the most in this field, and the most influential researcher, institution and country were Weihong Tan, the Chinese Academy of Sciences, China, respectively. Gold nanoparticles and quantum dots were the most used, but in the past three years, research hotspots focused on carbon dots and graphene quantum dots. Diagnostic directions primarily focused on cancer. The most used strategy was label-free electrochemical detection, but in the past two years, colorimetric analysis and fluorescence imaging emerged as hot topics.Conclusion.The bibliometric analysis reveals a rapid increase in the research on aptamer-conjugated nanoparticles for diagnosis, major contributors at the levels of journals, authors, institutions, and countries, and research preferences in diagnostic objects, nanoparticle types, and detection methods, as well as the evolution of research hotspots and future trends.
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Affiliation(s)
- Mao-Sheng Liu
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Si-Si Zhong
- Department of Quality and Safety Management, the First Affiliated Hospital of Gannan Medical University, Ganzhou, People's Republic of China
| | - Song Jiang
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Ting Wang
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Kun-He Zhang
- Department of Gastroenterology, Jiangxi Institute of Gastroenterology & Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
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Chavda VP, Balar PC, Nalla LV, Bezbaruah R, Gogoi NR, Gajula SNR, Peng B, Meena AS, Conde J, Prasad R. Conjugated Nanoparticles for Solid Tumor Theranostics: Unraveling the Interplay of Known and Unknown Factors. ACS OMEGA 2023; 8:37654-37684. [PMID: 37867666 PMCID: PMC10586263 DOI: 10.1021/acsomega.3c05069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/19/2023] [Indexed: 10/24/2023]
Abstract
Cancer diagnoses have been increasing worldwide, and solid tumors are among the leading contributors to patient mortality, creating an enormous burden on the global healthcare system. Cancer is responsible for around 10.3 million deaths worldwide. Solid tumors are one of the most prevalent cancers observed in recent times. On the other hand, early diagnosis is a significant challenge that could save a person's life. Treatment with existing methods has pitfalls that limit the successful elimination of the disorder. Though nanoparticle-based imaging and therapeutics have shown a significant impact in healthcare, current methodologies for solid tumor treatment are insufficient. There are multiple complications associated with the diagnosis and management of solid tumors as well. Recently, surface-conjugated nanoparticles such as lipid nanoparticles, metallic nanoparticles, and quantum dots have shown positive results in solid tumor diagnostics and therapeutics in preclinical models. Other nanotheranostic material platforms such as plasmonic theranostics, magnetotheranostics, hybrid nanotheranostics, and graphene theranostics have also been explored. These nanoparticle theranostics ensure the appropriate targeting of tumors along with selective delivery of cargos (both imaging and therapeutic probes) without affecting the surrounding healthy tissues. Though they have multiple applications, nanoparticles still possess numerous limitations that need to be addressed in order to be fully utilized in the clinic. In this review, we outline the importance of materials and design strategies used to engineer nanoparticles in the treatment and diagnosis of solid tumors and how effectively each method overcomes the drawbacks of the current techniques. We also highlight the gaps in each material platform and how design considerations can address their limitations in future research directions.
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Affiliation(s)
- Vivek P. Chavda
- Department
of Pharmaceutics and Pharmaceutical Technology, L.M. College of Pharmacy, Ahmedabad 380001, India
| | - Pankti C. Balar
- Pharmacy
Section, L.M. College of Pharmacy, Ahmedabad 380001, India
| | - Lakshmi Vineela Nalla
- Department
of Pharmacy, Koneru Lakshmaiah Education
Foundation, Vaddeswaram, Andhra Pradesh 522302, India
| | - Rajashri Bezbaruah
- Department
of Pharmaceutical Sciences, Faculty of Science
and Engineering, Dibrugarh, 786004 Assam, India
| | - Niva Rani Gogoi
- Department
of Pharmaceutical Sciences, Faculty of Science
and Engineering, Dibrugarh, 786004 Assam, India
| | - Siva Nageswara Rao Gajula
- Department
of Pharmaceutical Analysis, GITAM School of Pharmacy, GITAM (Deemed to be University), Rushikonda, Visakhapatnam, Andhra Pradesh 530045, India
| | - Berney Peng
- Department
of Pathology and Laboratory Medicine, University
of California at Los Angeles, Los
Angeles, California 90095, United States
| | - Avtar S. Meena
- Department
of Biotechnology, All India Institute of
Medical Sciences (AIIMS), Ansari
Nagar, New Delhi 110029, India
| | - João Conde
- ToxOmics,
NOVA Medical School, Faculdade de Ciências Médicas,
NMS|FCM, Universidade Nova de Lisboa, Lisboa 1169-056, Portugal
| | - Rajendra Prasad
- School
of Biochemical Engineering, Indian Institute
of Technology (BHU), Varanasi 221005, India
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5
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Yuan Y, Arroyo-Currás N. Continuous Molecular Monitoring in the Body via Nucleic Acid-based Electrochemical Sensors: The Need for Statistically-powered Validation. CURRENT OPINION IN ELECTROCHEMISTRY 2023; 39:101305. [PMID: 37274549 PMCID: PMC10237360 DOI: 10.1016/j.coelec.2023.101305] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nucleic acid-based electrochemical (NBE) sensors offer real-time and reagent-free sensing capabilities that overcome limitations of target-specific reactivity via affinity-based molecular detection. By leveraging affinity probes, NBE sensors become modular and versatile, allowing the monitoring of a variety of molecular targets by simply swapping the recognition probe without the need to change their sensor architecture. However, NBE sensors have not been rigorously validated in vivo in terms of analytical performance and clinical agreement relative to benchmark methods. In this article, we highlight reports from the past three years that evaluate NBE sensors performance in vivo. We hope this discussion will inspire future translational efforts with statistically robust experimental design, thus enabling real-world clinical applications and commercial development of NBE sensors.
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Affiliation(s)
- Yuchan Yuan
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21202
| | - Netzahualcóyotl Arroyo-Currás
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21202
- Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD 21218
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD 21218
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6
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de Jong E, Kocer A. Current Methods for Identifying Plasma Membrane Proteins as Cancer Biomarkers. MEMBRANES 2023; 13:409. [PMID: 37103836 PMCID: PMC10142483 DOI: 10.3390/membranes13040409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/31/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Plasma membrane proteins are a special class of biomolecules present on the cellular membrane. They provide the transport of ions, small molecules, and water in response to internal and external signals, define a cell's immunological identity, and facilitate intra- and intercellular communication. Since they are vital to almost all cellular functions, their mutants, or aberrant expression is linked to many diseases, including cancer, where they are a part of cancer cell-specific molecular signatures and phenotypes. In addition, their surface-exposed domains make them exciting biomarkers for targeting by imaging agents and drugs. This review looks at the challenges in identifying cancer-related cell membrane proteins and the current methodologies that solve most of the challenges. We classified the methodologies as biased, i.e., search cells for the presence of already known membrane proteins. Second, we discuss the unbiased methods that can identify proteins without prior knowledge of what they are. Finally, we discuss the potential impact of membrane proteins on the early detection and treatment of cancer.
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7
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Gholikhani T, Kumar S, Valizadeh H, Mahdinloo S, Adibkia K, Zakeri-Milani P, Barzegar-Jalali M, Jimenez B. Advances in Aptamers-Based Applications in Breast Cancer: Drug Delivery, Therapeutics, and Diagnostics. Int J Mol Sci 2022; 23:ijms232214475. [PMID: 36430951 PMCID: PMC9695968 DOI: 10.3390/ijms232214475] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 11/03/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022] Open
Abstract
Aptamers are synthetic single-stranded oligonucleotides (such as RNA and DNA) evolved in vitro using Systematic Evolution of Ligands through Exponential enrichment (SELEX) techniques. Aptamers are evolved to have high affinity and specificity to targets; hence, they have a great potential for use in therapeutics as delivery agents and/or in treatment strategies. Aptamers can be chemically synthesized and modified in a cost-effective manner and are easy to hybridize to a variety of nano-particles and other agents which has paved a way for targeted therapy and diagnostics applications such as in breast tumors. In this review, we systematically explain different aptamer adoption approaches to therapeutic or diagnostic uses when addressing breast tumors. We summarize the current therapeutic techniques to address breast tumors including aptamer-base approaches. We discuss the next aptamer-based therapeutic and diagnostic approaches targeting breast tumors. Finally, we provide a perspective on the future of aptamer-based sensors for breast therapeutics and diagnostics. In this section, the therapeutic applications of aptamers will be discussed for the targeting therapy of breast cancer.
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Affiliation(s)
- Tooba Gholikhani
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
- NanoRa Pharmaceuticals Ltd., Tabriz 5166-15731, Iran
| | - Shalen Kumar
- IQ Science Limited, Wellington 5010, New Zealand
| | - Hadi Valizadeh
- Drug Applied Research Centre, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Somayeh Mahdinloo
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Parvin Zakeri-Milani
- Liver and Gastrointestinal Diseases Research Center, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Mohammad Barzegar-Jalali
- Pharmaceutical Analysis Research Center, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran
| | - Balam Jimenez
- School of Biological Sciences, Victoria University of Wellington, Wellington 6012, New Zealand
- Correspondence:
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8
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Cui L, Chang W, Wei R, Chen W, Tang Y, Yue X. Aptamer and Ru(bpy)
3
2+
‐
AuNPs
‐based electrochemiluminescence biosensor for accurate detecting
Listeria monocytogenes
. J Food Saf 2022. [DOI: 10.1111/jfs.13008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liwei Cui
- Department of Food and Bioengineering Henan University of Animal Husbandry and Economy Zhengzhou China
| | - Weidan Chang
- Department of Food and Bioengineering Henan University of Animal Husbandry and Economy Zhengzhou China
| | - Rong Wei
- Department of Food and Bioengineering Henan University of Animal Husbandry and Economy Zhengzhou China
| | - Weifeng Chen
- Department of Food and Bioengineering Henan University of Animal Husbandry and Economy Zhengzhou China
| | - Yuanlong Tang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China Institute of Microbiology, Guangdong Academy of Sciences Guangzhou China
| | - Xiaoyu Yue
- Department of Food and Bioengineering Henan University of Animal Husbandry and Economy Zhengzhou China
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Gautam V, Kumar R, Jain VK, Nagpal S. An overview of advancement in aptasensors for influenza detection. Expert Rev Mol Diagn 2022; 22:705-724. [PMID: 35994712 DOI: 10.1080/14737159.2022.2116276] [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: 11/04/2022]
Abstract
INTRODUCTION The platforms for early identification of infectious diseases such as influenza has seen a surge in recent years as delayed diagnosis of such infections can lead to dreadful effects causing large numbers of deaths. The time taken in detection of an infectious disease may vary from a few days to a few weeks depending upon the choice of the techniques. So, there is an urgent need for advanced methodologies for early diagnosis of the influenza. AREAS COVERED The emergence of "Aptasensor" synergistically with biosensors for diagnosis has opened a new era for sensitive, selective and early detection approaches. This review described various conventional as well as advanced methods based on artificial immunogenic nucleotide sequences complementing a part of the virus, i.e., aptamers based aptasensors for influenza diagnosis and the challenges faced in their commercialization. EXPERT OPINION Although numerous traditional methods are available for influenza detection but mostly associated with low sensitivity, specificity, high cost, trained personnel, and animals required for virus culture/ antibody raising as the major drawbacks. Aptamers can be manufactured invitro as 'chemical antibodies' at commercial level, no animal required. Following these advantages, aptamers can pave the way for an efficient diagnostic technique as compared to other existing conventional methods..
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Affiliation(s)
- Varsha Gautam
- Amity Institute for Advanced Research and Studies (Materials & Devices), Amity University, Noida India, India
| | - Ramesh Kumar
- Department of Biotechnology, Indira Gandhi University, Meerpur, India
| | - Vinod Kumar Jain
- Amity Institute for Advanced Research and Studies (Materials & Devices), Amity University, Noida India, India
| | - Suman Nagpal
- Department of Environmental sciences, Indira Gandhi University, Meerpur, India
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10
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A review on corona virus disease 2019 (COVID-19): current progress, clinical features and bioanalytical diagnostic methods. Mikrochim Acta 2022; 189:103. [PMID: 35157153 PMCID: PMC8852957 DOI: 10.1007/s00604-022-05167-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/11/2022] [Indexed: 01/08/2023]
Abstract
A new epidemic of acute respiratory viral pneumonia was discovered in central China at the end of 2019. The disease was given the name coronavirus disease 2019 (COVID-19), and the virus that caused this disease was known as severe acute respiratory syndrome coronavirus (SARS-CoV-2). So far, diagnostic methods have been focused on (a) human antibody detection, (b) viral antigen detection and (c) viral gene detection, the latter using RT-PCR being the most accurate approach. In this paper, we present a summary of the COVID-19 pandemic, clinical features and epidemiology and pathogenesis. Also, we focus on the recent advances in bioanalytical diagnostic methods based on various techniques for SARS-CoV-2 sensing that have recently been published (2020–2021). Furthermore, we present the mechanisms, advantages and disadvantages of the most common biosensors for COVID-19 detection, which include optical, electrochemical and piezoelectric biosensors as well as wearable and smart nanobiosensors, immunosensors, aptasensors and genosensors.
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11
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Wang W, Liu X, Ding L, Jin HJ, Li X. RNA Hydrogel Combined with MnO 2 Nanoparticles as a Nano-Vaccine to Treat Triple Negative Breast Cancer. Front Chem 2022; 9:797094. [PMID: 35004614 PMCID: PMC8739783 DOI: 10.3389/fchem.2021.797094] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/18/2021] [Indexed: 01/13/2023] Open
Abstract
Hypoxia is not only the reason of tumor metastasis but also enhances the spread of cancer cells from the original tumor site, which results in cancer recurrence. Herein, we developed a self-assembled RNA hydrogel that efficiently delivered synergistic DNA CpG and short hairpin RNA (shRNA) adjuvants, as well as MnO2 loaded-photodynamic agent chlorine e6 (MnO2@Ce6), and a chemotherapy drug doxorubicin (DOX) into MDA-MB-231cells. The RNA hydrogel consists of one tumour suppressor miRNA (miRNA-205) and one anti-metastatic miRNA (miRNA-182), both of which showed an outstanding effect in synergistically abrogating tumours. The hydrogel would be dissociated by endogenous Dicer enzyme to release loaded therapeutic molecules, and in the meantime induce decomposition of tumor endogenous H2O2 to relieve tumor hypoxia. As a result, a remarkable synergistic therapeutic effect is achieved through the combined chemo-photodynamic therapy, which simultaneously triggers a series of anti-tumor immune responses. Besides, the hydrogel as the carrier which modified aptamer to targeted MDA-MB-231 has the advantages of good biocompatibility and low cytotoxicity. This strategy could be implemented to design any other microRNA (miRNA) as the carrier, combined with other treatment methods to treat human cancer, thereby overcoming the limitations of current cancer therapies.
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Affiliation(s)
- Weicai Wang
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, China
| | - Xiaofan Liu
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, China
| | - Lairong Ding
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, China
| | - Hyung Jong Jin
- Department of Bioscience and Biotechnology, The University of Suwon, Hwaseong, South Korea
| | - Xuemei Li
- Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Province Key Laboratory of Detection Technology for Tumor Makers, School of Chemistry and Chemical Engineering, Linyi University, Linyi, China
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12
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Shigdar S, Agnello L, Fedele M, Camorani S, Cerchia L. Profiling Cancer Cells by Cell-SELEX: Use of Aptamers for Discovery of Actionable Biomarkers and Therapeutic Applications Thereof. Pharmaceutics 2021; 14:28. [PMID: 35056924 PMCID: PMC8781458 DOI: 10.3390/pharmaceutics14010028] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/15/2021] [Accepted: 12/21/2021] [Indexed: 12/24/2022] Open
Abstract
The identification of tumor cell-specific surface markers is a key step towards personalized cancer medicine, allowing early assessment and accurate diagnosis, and development of efficacious targeted therapies. Despite significant efforts, currently the spectrum of cell membrane targets associated with approved treatments is still limited, causing an inability to treat a large number of cancers. What mainly limits the number of ideal clinical biomarkers is the high complexity and heterogeneity of several human cancers and still-limited methods for molecular profiling of specific cancer types. Thanks to the simplicity, versatility and effectiveness of its application, cell-SELEX (Systematic Evolution of Ligands by Exponential Enrichment) technology is a valid complement to the present strategies for biomarkers' discovery. We and other researchers worldwide are attempting to apply cell-SELEX to the generation of oligonucleotide aptamers as tools for both identifying new cancer biomarkers and targeting them by innovative therapeutic strategies. In this review, we discuss the potential of cell-SELEX for increasing the currently limited repertoire of actionable cancer cell-surface biomarkers and focus on the use of the selected aptamers as components of innovative conjugates and nano-formulations for cancer therapy.
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Affiliation(s)
- Sarah Shigdar
- School of Medicine, Deakin University, Geelong 3220, Australia;
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong 3220, Australia
| | - Lisa Agnello
- Institute of Experimental Endocrinology and Oncology “Gaetano Salvatore”, CNR, Via S. Pansini 5, 80131 Naples, Italy; (L.A.); (M.F.); (S.C.)
- Department of Precision Medicine, University of Campania “L. Vanvitelli”, S. Andrea Delle Dame-Via L. De Crecchio 7, 80138 Naples, Italy
| | - Monica Fedele
- Institute of Experimental Endocrinology and Oncology “Gaetano Salvatore”, CNR, Via S. Pansini 5, 80131 Naples, Italy; (L.A.); (M.F.); (S.C.)
| | - Simona Camorani
- Institute of Experimental Endocrinology and Oncology “Gaetano Salvatore”, CNR, Via S. Pansini 5, 80131 Naples, Italy; (L.A.); (M.F.); (S.C.)
| | - Laura Cerchia
- Institute of Experimental Endocrinology and Oncology “Gaetano Salvatore”, CNR, Via S. Pansini 5, 80131 Naples, Italy; (L.A.); (M.F.); (S.C.)
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13
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Seitz I, Shaukat A, Nurmi K, Ijäs H, Hirvonen J, Santos HA, Kostiainen MA, Linko V. Prospective Cancer Therapies Using Stimuli-Responsive DNA Nanostructures. Macromol Biosci 2021; 21:e2100272. [PMID: 34614301 DOI: 10.1002/mabi.202100272] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/28/2021] [Indexed: 11/08/2022]
Abstract
Nanostructures based on DNA self-assembly present an innovative way to address the increasing need for target-specific delivery of therapeutic molecules. Currently, most of the chemotherapeutics being used in clinical practice have undesired and exceedingly high off-target toxicity. This is a challenge in particular for small molecules, and hence, developing robust and effective methods to lower these side effects and enhance the antitumor activity is of paramount importance. Prospectively, these issues could be tackled with the help of DNA nanotechnology, which provides a route for the fabrication of custom, biocompatible, and multimodal structures, which can, to some extent, resist nuclease degradation and survive in the cellular environment. Similar to widely employed liposomal products, the DNA nanostructures (DNs) are loaded with selected drugs, and then by employing a specific stimulus, the payload can be released at its target region. This review explores several strategies and triggers to achieve targeted delivery of DNs. Notably, different modalities are explained through which DNs can interact with their respective targets as well as how structural changes triggered by external stimuli can be used to achieve the display or release of the cargo. Furthermore, the prospects and challenges of this technology are highlighted.
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Affiliation(s)
- Iris Seitz
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Ahmed Shaukat
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland
| | - Kurt Nurmi
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, 00014, Finland
| | - Heini Ijäs
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland.,Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35, Jyväskylä, 40014, Finland
| | - Jouni Hirvonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, 00014, Finland
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, 00014, Finland.,Department of Biomedical Engineering, W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, University Medical Center Groningen, Ant. Deusinglaan 1, Groningen, 9713 AV, The Netherlands
| | - Mauri A Kostiainen
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland.,HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, Aalto, 00076, Finland
| | - Veikko Linko
- Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16100, Aalto, 00076, Finland.,HYBER Centre, Department of Applied Physics, Aalto University, P.O. Box 15100, Aalto, 00076, Finland
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14
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Costa A, Vale N. Strategies for the treatment of breast cancer: from classical drugs to mathematical models. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2021; 18:6328-6385. [PMID: 34517536 DOI: 10.3934/mbe.2021316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Breast cancer is one of the most common cancers and generally affects women. It is a heterogeneous disease that presents different entities, different biological characteristics, and differentiated clinical behaviors. With this in mind, this literature review had as its main objective to analyze the path taken from the simple use of classical drugs to the application of mathematical models, which through the many ongoing studies, have been considered as one of the reliable strategies, explaining the reasons why chemotherapy is not always successful. Besides, the most commonly mentioned strategies are immunotherapy, which includes techniques and therapies such as the use of antibodies, cytokines, antitumor vaccines, oncolytic and genomic viruses, among others, and nanoparticles, including metallic, magnetic, polymeric, liposome, dendrimer, micelle, and others, as well as drug reuse, which is a process by which new therapeutic indications are found for existing and approved drugs. The most commonly used pharmacological categories are cardiac, antiparasitic, anthelmintic, antiviral, antibiotic, and others. For the efficient development of reused drugs, there must be a process of exchange of purposes, methods, and information already available, and for their better understanding, computational mathematical models are then used, of which the methods of blind search or screening, based on the target, knowledge, signature, pathway or network and the mechanism to which it is directed, stand out. To conclude it should be noted that these different strategies can be applied alone or in combination with each other always to improve breast cancer treatment.
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Affiliation(s)
- Ana Costa
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Dr. Plácido da Costa, 4200-450 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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15
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Li L, Wan J, Wen X, Guo Q, Jiang H, Wang J, Ren Y, Wang K. Identification of a New DNA Aptamer by Tissue-SELEX for Cancer Recognition and Imaging. Anal Chem 2021; 93:7369-7377. [PMID: 33960774 DOI: 10.1021/acs.analchem.1c01445] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cancer has become one of the most common diseases with high mortality in humans. Early and accurate diagnosis of cancer is of great significance to enhance the survival rate of patients. Therefore, effective molecular ligands capable of selectively recognizing cancer are urgently needed. In this work, we identified a new DNA aptamer named SW1 by tissue-based systematic evolution of ligands by exponential enrichment (tissue-SELEX), in which cancerous liver tissue sections were used as the positive control and adjacent normal liver tissue sections were used as the negative control. Taking immobilized liver cancer SMMC-7721 cells as the research object, aptamer SW1 exhibited excellent affinity with a Kd value of 123.62 ± 17.53 nM, and its binding target was preliminarily determined as a non-nucleic acid substance in the nucleus. Moreover, tissue imaging results showed that SW1 explicitly recognized cancerous liver tissues with a high detection rate of 72.7% but displayed a low detection rate to adjacent normal tissues. In addition to liver cancer cells and tissues, aptamer SW1 has been demonstrated to recognize various other types of cancer cells and tissues. Furthermore, SW1-A, an optimized aptamer of SW1, maintained its excellent affinity toward liver cancer cells and tissues. Collectively, these results indicate that SW1 possesses great potential for use as an effective molecular probe for clinical diagnosis of cancer.
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Affiliation(s)
- Lie Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Jun Wan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Xiaohong Wen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Qiuping Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Huishan Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Jie Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Yazhou Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Hunan University, Changsha 410082, China
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16
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Selection of aptamers against triple negative breast cancer cells using high throughput sequencing. Sci Rep 2021; 11:8614. [PMID: 33883615 PMCID: PMC8060331 DOI: 10.1038/s41598-021-87998-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 04/01/2021] [Indexed: 12/16/2022] Open
Abstract
Triple-negative breast cancer is the most aggressive subtype of invasive breast cancer with a poor prognosis and no approved targeted therapy. Hence, the identification of new and specific ligands is essential to develop novel targeted therapies. In this study, we aimed to identify new aptamers that bind to highly metastatic breast cancer MDA-MB-231 cells using the cell-SELEX technology aided by high throughput sequencing. After 8 cycles of selection, the aptamer pool was sequenced and the 25 most frequent sequences were aligned for homology within their variable core region, plotted according to their free energy and the key nucleotides possibly involved in the target binding site were analyzed. Two aptamer candidates, Apt1 and Apt2, binding specifically to the target cells with \documentclass[12pt]{minimal}
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\begin{document}$$K_{d}$$\end{document}Kd values of 44.3 ± 13.3 nM and 17.7 ± 2.7 nM, respectively, were further validated. The binding analysis clearly showed their specificity to MDA-MB-231 cells and suggested the targeting of cell surface receptors. Additionally, Apt2 revealed no toxicity in vitro and showed potential translational application due to its affinity to breast cancer tissue sections. Overall, the results suggest that Apt2 is a promising candidate to be used in triple-negative breast cancer treatment and/or diagnosis.
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17
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Improving Breast Cancer Treatment Specificity Using Aptamers Obtained by 3D Cell-SELEX. Pharmaceuticals (Basel) 2021; 14:ph14040349. [PMID: 33918832 PMCID: PMC8068899 DOI: 10.3390/ph14040349] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/26/2021] [Accepted: 04/05/2021] [Indexed: 12/24/2022] Open
Abstract
Three-dimensional spheroids of non-malignant MCF10A and malignant SKBR3 breast cells were used for subsequent 3D Cell-SELEX to generate aptamers for specific binding and treatment of breast cancer cells. Using 3D Cell-SELEX combined with Next-Generation Sequencing and bioinformatics, ten abundant aptamer families with specific structures were identified that selectively bind to SKBR3, and not to MCF10A cells. Multivalent aptamer polymers were synthesized by co-polymerization and analyzed for binding performance as well as therapeutic efficacy. Binding performance was determined by confocal fluorescence imaging and revealed specific binding and efficient internalization of aptamer polymers into SKBR3 spheroids. For therapeutic purposes, DNA sequences that intercalate the cytotoxic drug doxorubicin were co-polymerized into the aptamer polymers. Viability tests show that the drug-loaded polymers are specific and effective in killing SKBR3 breast cancer cells. Thus, the 3D-selected aptamers enhanced the specificity of doxorubicin against malignant over non-malignant breast cells. The innovative modular DNA aptamer platform based on 3D Cell SELEX and polymer multivalency holds great promise for diagnostics and treatment of breast cancer.
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18
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Abstract
Systematically dissecting the molecular basis of the cell surface as well as its related biological activities is considered as one of the most cutting-edge fields in fundamental sciences. The advent of various advanced cell imaging techniques allows us to gain a glimpse of how the cell surface is structured and coordinated with other cellular components to respond to intracellular signals and environmental stimuli. Nowadays, cell surface-related studies have entered a new era featured by a redirected aim of not just understanding but artificially manipulating/remodeling the cell surface properties. To meet this goal, biologists and chemists are intensely engaged in developing more maneuverable cell surface labeling strategies by exploiting the cell's intrinsic biosynthetic machinery or direct chemical/physical binding methods for imaging, sensing, and biomedical applications. In this review, we summarize the recent advances that focus on the visualization of various cell surface structures/dynamics and accurate monitoring of the microenvironment of the cell surface. Future challenges and opportunities in these fields are discussed, and the importance of cell surface-based studies is highlighted.
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Affiliation(s)
- Hao-Ran Jia
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou Road, Nanjing 210096, P. R. China.
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19
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Ding L, Li J, Wu C, Yan F, Li X, Zhang S. A self-assembled RNA-triple helix hydrogel drug delivery system targeting triple-negative breast cancer. J Mater Chem B 2021; 8:3527-3533. [PMID: 31737891 DOI: 10.1039/c9tb01610d] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The major drawbacks of traditional RNA cancer therapies include low cellular uptake in vitro or in vivo, instability of in vivo circulation, nonspecific bio-distribution, and lack of targeting ability, which result in poor silencing efficiency. Herein, we developed a novel RNA-triple-helix hydrogel for the treatment of triple negative breast cancers (TNBCs) by incorporating RNA-triple-helix and siRNA duplexes of CXCR4 into the same RNA nanoparticles with no synthetic polycationic reagents added. The RNA-triple-helix consists of one tumour suppressor miRNA (miRNA-205) and one oncomiR inhibitor (miRNA-221), both of which showed an outstanding effect in synergistically abrogating tumours. The siRNA duplexes of CXCR4 were embedded into the RNA hydrogel to block breast cancer metastasis and conjugation of the LXL-DNA aptamer (apt-DNA-Chol) is an effective target DNA sequence for MDA-MB-231 cells. The self-assembly of the RNA-triple-helix hydrogel exhibited high selectivity of in vitro and in vivo absorption and controlling miRNA expression when compared to free miRNA and RNA transcripts. The well-developed gene delivery system provided a potential treatment with high specificity and selectivity toward TNBCs. This strategy can be implemented in triplex-helix hydrogel design to form novel miRNA combinations to treat various human cancers.
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Affiliation(s)
- Lairong Ding
- Center of Cooperative Innovation for Chemical Imaging Functional Probes in Universities of Shandong, College of Chemistry, Shandong Normal University, Jinan 250014, P. R. China
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20
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Wu L, Wang Y, Xu X, Liu Y, Lin B, Zhang M, Zhang J, Wan S, Yang C, Tan W. Aptamer-Based Detection of Circulating Targets for Precision Medicine. Chem Rev 2021; 121:12035-12105. [PMID: 33667075 DOI: 10.1021/acs.chemrev.0c01140] [Citation(s) in RCA: 252] [Impact Index Per Article: 84.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The past decade has witnessed ongoing progress in precision medicine to improve human health. As an emerging diagnostic technique, liquid biopsy can provide real-time, comprehensive, dynamic physiological and pathological information in a noninvasive manner, opening a new window for precision medicine. Liquid biopsy depends on the sensitive and reliable detection of circulating targets (e.g., cells, extracellular vesicles, proteins, microRNAs) from body fluids, the performance of which is largely governed by recognition ligands. Aptamers are single-stranded functional oligonucleotides, capable of folding into unique tertiary structures to bind to their targets with superior specificity and affinity. Their mature evolution procedure, facile modification, and affinity regulation, as well as versatile structural design and engineering, make aptamers ideal recognition ligands for liquid biopsy. In this review, we present a broad overview of aptamer-based liquid biopsy techniques for precision medicine. We begin with recent advances in aptamer selection, followed by a summary of state-of-the-art strategies for multivalent aptamer assembly and aptamer interface modification. We will further describe aptamer-based micro-/nanoisolation platforms, aptamer-enabled release methods, and aptamer-assisted signal amplification and detection strategies. Finally, we present our perspectives regarding the opportunities and challenges of aptamer-based liquid biopsy for precision medicine.
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Affiliation(s)
- Lingling Wu
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yidi Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xing Xu
- Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yilong Liu
- Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bingqian Lin
- Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingxia Zhang
- Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jialu Zhang
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shuang Wan
- Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chaoyong Yang
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Collaborative Innovation Center of Chemistry for Energy Materials, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Weihong Tan
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha 410082, China.,The Cancer Hospital of the University of Chinese Academy of Sciences, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
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21
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Lin N, Wu L, Xu X, Wu Q, Wang Y, Shen H, Song Y, Wang H, Zhu Z, Kang D, Yang C. Aptamer Generated by Cell-SELEX for Specific Targeting of Human Glioma Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:9306-9315. [PMID: 33030015 DOI: 10.1021/acsami.0c11878] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The most prevalent primary brain tumors are gliomas, which start in the glial cells. Although there have been significant technological advances in surgery and radio-chemotherapy, the prognosis and survival of patients with malignant gliomas remain poor. For routine diagnosis of glioma, computed tomography and magnetic resonance imaging primarily depend on anatomical changes and fail to detect the cellular changes that occur early in the development of malignant gliomas. Therefore, it is urgent to find effective molecular diagnostic tools to detect early stages of malignant gliomas. Currently, cell-based Systematic Evolution of Ligands by EXponential enrichment (cell-SELEX) technology is one effective tool to obtain DNA or RNA aptamers capable of differentiating the molecular signatures among different types of cell lines. Using cell-SELEX, we generated and characterized an aptamer, termed S6-1b, that can distinguish the molecular differences between glioma cell line SHG44 and human astrocytes. Under the conditions of 4 and 37 °C, respectively, the dissociation constants of aptamer-cell interaction were both measured in the low nanomolar range. The aptamer S6-1b also exhibited excellent selectivity, making it suitable for use in a complex biological environment. Furthermore, the aptamer can effectively target glioma cells for in vivo fluorescence imaging of tumors. The target type of aptamer S6-1b was identified as a cell membrane protein. Our work indicates that aptamer S6-1b has diagnostic and therapeutic potential to specifically deliver imaging or therapeutic agents to malignant gliomas.
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Affiliation(s)
- Ningqin Lin
- Department of Neurosurgery, Department of Emergency Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Liang Wu
- Department of Neurosurgery, Department of Emergency Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Xing Xu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qiaoyi Wu
- Department of Neurosurgery, Department of Emergency Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Yuzhe Wang
- Department of Neurosurgery, Department of Emergency Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Haicong Shen
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yanling Song
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hongyao Wang
- Department of Neurosurgery, Department of Emergency Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Zhi Zhu
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Dezhi Kang
- Department of Neurosurgery, Department of Emergency Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Chaoyong Yang
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials, Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Institute of Molecular Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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22
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Pang B, Yang H, Wang L, Chen J, Jin L, Shen B. Aptamer modified MoS2 nanosheets application in targeted photothermal therapy for breast cancer. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125506] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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23
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Yu X, Shi H, Li Y, Guo Y, Zhang P, Wang G, Li L, Chen X, Ding L, Ju H. Thermally Triggered, Cell-Specific Enzymatic Glyco-Editing: In Situ Regulation of Lectin Recognition and Immune Response on Target Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54387-54398. [PMID: 33236873 DOI: 10.1021/acsami.0c15212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In situ glyco-editing on the cell surface can endow cellular glycoforms with new structures and properties; however, the lack of cell specificity and dependence on cells' endogenous functions plague the revelation of cellular glycan recognition properties and hamper the application of glyco-editing in complicated authentic biosystems. Herein, we develop a thermally triggered, cell-specific glyco-editing method for regulation of lectin recognition on target live cells in both single- and cocultured settings. The method relies on the aptamer-mediated anchoring of microgel-encapsulated neuraminidase on target cells and subsequent thermally triggered enzyme release for localized sialic acid (Sia) trimming. This temperature-based enzyme accessibility modulation strategy exempts genetic or metabolic engineering operations and, thus for the first time, enables tumor-specific desialylation on complicated tissue slices. The proposed method also provides an unprecedented opportunity to potentiate the innate immune response of natural killer cells toward target tumor cells through thermally triggered cell-specific desialylation, which paves the way for in vivo glycoimmune-checkpoint-targeted cancer therapeutic intervention.
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Affiliation(s)
- Xiaofei Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Huifang Shi
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yiran Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yuna Guo
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Peiwen Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Guyu Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Lei Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xian Chen
- Jiangsu Province Blood Center, Nanjing 210008, 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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Allemailem KS, Almatroudi A, Alsahli MA, Basfar GT, Alrumaihi F, Rahmani AH, Khan AA. Recent advances in understanding oligonucleotide aptamers and their applications as therapeutic agents. 3 Biotech 2020; 10:551. [PMID: 33269185 PMCID: PMC7686427 DOI: 10.1007/s13205-020-02546-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
The innovative discovery of aptamers was based on target-specific treatment in clinical diagnostics and therapeutics. Aptamers are synthetic, single-stranded oligonucleotides, simply described as chemical antibodies, which can bind to diverse targets with high specificity and affinity. Aptamers are synthesized by the SELEX technique, and possess distinctive properties as small size (10-50 kDa), higher stability, easy manufacture and less immunogenicity. These oligonucleotides are easily degraded by nucleases, so require some important modifications like capping and incorporation of modified nucleotides. RNA aptamers can be modified chemically on 2' positions using -NH3, -F, -deoxy, or -OMe groups to enhance their nuclease resistance. Aptamers have been employed for multiple purposes, as direct drugs or aptamer-drug conjugates targeted against different diseased cells. Different aptamer-conjugated nanovehicles (e.g., micelles, liposomes, silica nano-shells) have been designed to transport diverse anticancer-drugs like doxorubicin and cisplatin in bulk to minimize systemic cytotoxicity. Some drug-loaded nanovehicles (up to 97% loading capacity) and conjugated with specific aptamer resulted in more than 60% tumor inhibition as compared to unconjugated drug-loaded nanovehicles which showed only 31% cancer inhibition. In addition, aptamers have been widely used in basic research, food safety, environmental monitoring, clinical diagnostics and therapeutics. Different FDA-approved RNA and DNA aptamers are now available in the market, used for the treatment of diverse diseases, especially cancer. These aptamers include Macugen, Pegaptanib, etc. Despite a good progress in aptamer use, the present-day chemotherapeutics and drug targeting systems still face great challenges. Here in this review article, we are discussing nucleic acid aptamers, preparation, role in the transportation of different nanoparticle vehicles and their applications as therapeutic agents.
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Affiliation(s)
- Khaled S. Allemailem
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, P.O. Box 6699, Buraydah, 51452 Saudi Arabia
| | - Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Mohammed A. Alsahli
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Ghaiyda Talal Basfar
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Faris Alrumaihi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Amjad Ali Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, P.O. Box 6699, Buraydah, 51452 Saudi Arabia
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Photoelectrochemical aptasensor with low background noise. Mikrochim Acta 2020; 187:622. [PMID: 33089357 DOI: 10.1007/s00604-020-04601-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 10/12/2020] [Indexed: 10/23/2022]
Abstract
In photoelectrochemical (PEC) detection, enhancing the PEC signal and depressing the blank signal are conducive to improve the sensitivity. Because the carbon nanotube (CNT) effectively transfers photogenerated electrons from SnSe to the electrode, the composite nanomaterial CNTs/SnSe generates a strong PEC signal. Methionine (Met), AuNPs, and probe DNA are woven together forming a nanoprobe which is used as a quencher to quench the PEC signal of CNTs/SnSe. When the nanoprobe and CNTs/SnSe are modified onto the electrode, there is a low blank signal. In the presence of metastatic breast cancer cells, the cells interact with the aptamer of dsDNA; concomitantly, cDNA is released to trigger catalytic hairpin assembly (CHA). As a result, a new dsDNA which has an overhang is formed. The nanoprobe on the surface of the electrode hybridizes with the newly formed dsDNA. Subsequently, the nanoprobe is released from the surface of the electrode and the quenching effect between the nanoprobe and the CNTs/SnSe disappears. The PEC aptasensor is linear in the concentration range of 300-5,000 cells/mL, and the detection limit is 180 cells/mL under optimized conditions. The relative standard deviation (RSD) is 3.6% at 10,000 cells/mL. This work demonstrates a promising strategy using CNTs/SnSe as the photoactive material and Met-AuNPs as the quencher to establish a PEC aptasensor with a high PEC response and low blank signal. It can be used to detect bioactive substances at ultralow levels prospectively. Graphical abstract.
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Chemical Modification of Aptamers for Increased Binding Affinity in Diagnostic Applications: Current Status and Future Prospects. Int J Mol Sci 2020; 21:ijms21124522. [PMID: 32630547 PMCID: PMC7350236 DOI: 10.3390/ijms21124522] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022] Open
Abstract
Aptamers are short single stranded DNA or RNA oligonucleotides that can recognize analytes with extraordinary target selectivity and affinity. Despite their promising properties and diagnostic potential, the number of commercial applications remains scarce. In order to endow them with novel recognition motifs and enhanced properties, chemical modification of aptamers has been pursued. This review focuses on chemical modifications, aimed at increasing the binding affinity for the aptamer's target either in a non-covalent or covalent fashion, hereby improving their application potential in a diagnostic context. An overview of current methodologies will be given, thereby distinguishing between pre- and post-SELEX (Systematic Evolution of Ligands by Exponential Enrichment) modifications.
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Novel Aptamers Selected on Living Cells for Specific Recognition of Triple-Negative Breast Cancer. iScience 2020; 23:100979. [PMID: 32222697 PMCID: PMC7103779 DOI: 10.1016/j.isci.2020.100979] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/02/2020] [Accepted: 03/09/2020] [Indexed: 02/08/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is a high heterogeneous group of tumors with a distinctly aggressive nature and high rates of relapse. So far, the lack of any known targetable proteins has not allowed a specific anti-tumor treatment. Therefore, the identification of novel agents for specific TNBC targeting and treatment is desperately needed. Here, by integrating cell-SELEX (Systematic Evolution of Ligands by EXponential enrichment) for the specific recognition of TNBC cells with high-throughput sequencing technology, we identified a panel of 2′-fluoropyrimidine-RNA aptamers binding to TNBC cells and their cisplatin- and doxorubicin-resistant derivatives at low nanomolar affinity. These aptamers distinguish TNBC cells from both non-malignant and non-TNBC breast cancer cells and are able to differentiate TNBC histological specimens. Importantly, they inhibit TNBC cell capacity of growing in vitro as mammospheres, indicating they could also act as anti-tumor agents. Therefore, our newly identified aptamers are a valuable tool for selectively dealing with TNBC. Six 2′FPy-RNA aptamers were obtained by TNBC Cell-SELEX/NGS They distinguish TNBC cells from non-malignant and non-TNBC breast cancer cells They differentiate TNBC histological specimens by aptamer-based staining They inhibit TNBC cell lines capacity of growing in vitro as mammospheres
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Jeevanandam J, Tan KX, Danquah MK, Guo H, Turgeson A. Advancing Aptamers as Molecular Probes for Cancer Theranostic Applications-The Role of Molecular Dynamics Simulation. Biotechnol J 2020; 15:e1900368. [PMID: 31840436 DOI: 10.1002/biot.201900368] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 12/06/2019] [Indexed: 12/24/2022]
Abstract
Theranostics cover emerging technologies for cell biomarking for disease diagnosis and targeted introduction of drug ingredients to specific malignant sites. Theranostics development has become a significant biomedical research endeavor for effective diagnosis and treatment of diseases, especially cancer. An efficient biomarking and targeted delivery strategy for theranostic applications requires effective molecular coupling of binding ligands with high affinities to specific receptors on the cancer cell surface. Bioaffinity offers a unique mechanism to bind specific target and receptor molecules from a range of non-targets. The binding efficacy depends on the specificity of the affinity ligand toward the target molecule even at low concentrations. Aptamers are fragments of genetic materials, peptides, or oligonucleotides which possess enhanced specificity in targeting desired cell surface receptor molecules. Aptamer-target binding results from several inter-molecular interactions including hydrogen bond formation, aromatic stacking of flat moieties, hydrophobic interaction, electrostatic, and van der Waals interactions. Advancements in Systematic Evolution of Ligands by Exponential Enrichment (SELEX) assay has created the opportunity to artificially generate aptamers that specifically bind to desired cancer and tumor surface receptors with high affinities. This article discusses the potential application of molecular dynamics (MD) simulation to advance aptamer-mediated receptor targeting in targeted cancer therapy. MD simulation offers real-time analysis of the molecular drivers of the aptamer-receptor binding and generate optimal receptor binding conditions for theranostic applications. The article also provides an overview of different cancer types with focus on receptor biomarking and targeted treatment approaches, conventional molecular probes, and aptamers that have been explored for cancer cells targeting.
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Affiliation(s)
- Jaison Jeevanandam
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, Miri, Sarawak, 98009, Malaysia
| | - Kei Xian Tan
- School of Materials Science & Engineering, Nanyang Technological University, Singapore, 639798
| | | | - Haobo Guo
- Department of Computer Science and Engineering, University of Tennessee, Chattanooga, TN, 37403, USA.,SimCenter, University of Tennessee, Chattanooga, TN, 37403, USA
| | - Andrew Turgeson
- Chemical Engineering Department, University of Tennessee, Chattanooga, TN, 37403, USA
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Wu Y, Belmonte I, Sykes KS, Xiao Y, White RJ. Perspective on the Future Role of Aptamers in Analytical Chemistry. Anal Chem 2019; 91:15335-15344. [PMID: 31714748 PMCID: PMC10184572 DOI: 10.1021/acs.analchem.9b03853] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
It has been almost 30 years since the invention of Systematic Evolution of Ligands by Exponential Enrichment (SELEX) methodology and the description of the first aptamers. In retrospect over the past 30 years, advances in aptamer development and application have demonstrated that aptamers are potentially useful reagents that can be employed in diverse areas within analytical chemistry, biotechnology, biomedicine, and molecular biology. While often touted as artificial antibodies with an ability to be selected for any target, aptamer development, unfortunately, lags behind development of analytical methodologies that employ aptamers, hindering deeper integration into the application of analytical tool development. This perspective covers recent advances in SELEX methodology for improving efficiency of the SELEX procedure and enhancing affinity and specificity of the selected aptamers, what we view as a critical barrier in the future role of aptamers in analytical chemistry. We discuss postselection modifications that can be used for enhancing performance of the selected aptamers in an analytical device by including understanding intermolecular interaction forces in the binding domain. While highlighting promising properties of aptamers that enable several analytical advances, we provide discussion on the challenges of penetration of aptamers in the analytical field.
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Affiliation(s)
- Yao Wu
- Department of Chemistry , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Israel Belmonte
- Department of Chemistry , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Kiana S Sykes
- Department of Chemistry , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Yi Xiao
- Department of Chemistry and Biochemistry , Florida International University , Miami , Florida 33199 , United States
| | - Ryan J White
- Department of Chemistry , University of Cincinnati , Cincinnati , Ohio 45221 , United States.,Department of Electrical Engineering and Computer Science , University of Cincinnati , Cincinnati , Ohio 45221 , United States
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Thakur V, Kutty RV. Recent advances in nanotheranostics for triple negative breast cancer treatment. J Exp Clin Cancer Res 2019; 38:430. [PMID: 31661003 PMCID: PMC6819447 DOI: 10.1186/s13046-019-1443-1] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/10/2019] [Indexed: 12/20/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is the most complex and aggressive type of breast cancer encountered world widely in women. Absence of hormonal receptors on breast cancer cells necessitates the chemotherapy as the only treatment regime. High propensity to metastasize and relapse in addition to poor prognosis and survival motivated the oncologist, nano-medical scientist to develop novel and efficient nanotherapies to solve such a big TNBC challenge. Recently, the focus for enhanced availability, targeted cellular uptake with minimal toxicity is achieved by nano-carriers. These smart nano-carriers carrying all the necessary arsenals (drugs, tracking probe, and ligand) designed in such a way that specifically targets the TNBC cells at site. Articulating the targeted delivery system with multifunctional molecules for high specificity, tracking, diagnosis, and treatment emerged as theranostic approach. In this review, in addition to classical treatment modalities, recent advances in nanotheranostics for early and effective diagnostic and treatment is discussed. This review highlighted the recently FDA approved immunotherapy and all the ongoing clinical trials for TNBC, in addition to nanoparticle assisted immunotherapy. Futuristic but realistic advancements in artificial intelligence (AI) and machine learning not only improve early diagnosis but also assist clinicians for their workup in TNBC. The novel concept of Nanoparticles induced endothelial leakiness (NanoEL) as a way of tumor invasion is also discussed in addition to classical EPR effect. This review intends to provide basic insight and understanding of the novel nano-therapeutic modalities in TNBC diagnosis and treatment and to sensitize the readers for continue designing the novel nanomedicine. This is the first time that designing nanoparticles with stoichiometric definable number of antibodies per nanoparticle now represents the next level of precision by design in nanomedicine.
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Affiliation(s)
- Vikram Thakur
- Department of Virology, Postgraduate Institute of Medical Education and Research, PGIMER, Chandigarh, 160012 India
| | - Rajaletchumy Veloo Kutty
- Faculty of Chemical and Process Engineering Technology, College of Engineering Technology,University Malaysia Pahang, Tun Razak Highway, 26300 Kuantan, Pahang Malaysia
- Center of Excellence for Advanced Research in Fluid Flow, University Malaysia Pahang, 26300, Kuantan, Pahang Malaysia
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Akhtartavan S, Karimi M, Sattarahmady N, Heli H. An electrochemical signal-on apta-cyto-sensor for quantitation of circulating human MDA-MB-231 breast cancer cells by transduction of electro-deposited non-spherical nanoparticles of gold. J Pharm Biomed Anal 2019; 178:112948. [PMID: 31704128 DOI: 10.1016/j.jpba.2019.112948] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 10/18/2019] [Accepted: 10/20/2019] [Indexed: 11/29/2022]
Abstract
A highly simple, sensitive, specific and low-cost electrochemical apta-cyto-sensor for determination of circulating human MDA-MB-231 breast cancer cells was fabricated. Non-spherical nanoparticles of gold were electro-deposited in the presence of ethosuximide as a shape directing and size controlling agent. The nanoparticles had dimensions ranging 50-150 nm, and covered the underlying surface with a roughness factor of 8.03. The Non-spherical nanoparticles were then employed as the apta-cyto-sensor transducer. A 83-mer DNA aptamer that is specific to capturing the cell surface proteins was immobilized on the transducer surface, and binding with the cells was followed using the ferro/ferricyanide redox marker. The aptamer was immobilized within ∼200 min on the transducer surface. The cells were quantified with an equation of regression of ΔIp(μA) = (1.028 ± 0.027) log (C (cell mL-1)) + (0.2199 ± 0.0944), a sensitivity of 1.028 μA (log (concentration / cell mL-1))-1 and a quantitation limit of 2 cell mL-1, in a concentration range of 5 to 2 × 106 cell mL-1. The apta-cyto-sensor selectivity was also evaluated toward AsPC-1, Calu-6, HeLa, MCF-7 and melanoma B16/F10 cell lines. The apta-cyto-sensor had a fabrication reproducibility of 4.2%, regeneration capability of 5.1%, a stability of 35 days, and a potential application for the detection of MDA-MB-231 cells in the spiked blood serum samples with a sensitivity of 0.8975 μA (log (concentration / cell mL-1))-1 and a quantitation limit of 5 cell mL-1, in a concentration range of 10 to 1 × 103 cell mL-1. The apta-cyto-sensor would be applicable for breast cancer diagnosis at early stage.
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Affiliation(s)
- S Akhtartavan
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Karimi
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - N Sattarahmady
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - H Heli
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Wu L, Zhu L, Huang M, Song J, Zhang H, Song Y, Wang W, Yang C. Aptamer-based microfluidics for isolation, release and analysis of circulating tumor cells. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.05.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Jia M, Mao Y, Wu C, Wang S, Zhang H. A platform for primary tumor origin identification of circulating tumor cells via antibody cocktail-based in vivo capture and specific aptamer-based multicolor fluorescence imaging strategy. Anal Chim Acta 2019; 1082:136-145. [PMID: 31472702 DOI: 10.1016/j.aca.2019.07.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 06/23/2019] [Accepted: 07/22/2019] [Indexed: 02/05/2023]
Abstract
Circulating tumor cells (CTCs) are expected to serve as a blood-based biomarker in the diagnosis of cancers at an early stage, providing an opportunity to increase the survival of cancer patients. Current techniques for CTC detection were designed for some particular types of cancer with confirmed primary tumor origin. In this work, a platform for the detection of two cancer types and the identification of the primary tumor origin of CTCs was established to meet the requirement of cancer diagnosis and clinical application. A combined strategy based on in vivo capture method using antibody cocktail and multicolor fluorescence imaging using aptamer was designed to achieve the high-efficiency capture of CTCs and the accurate location of the primary tumor. An antibody cocktail of epithelial cell adhesion molecule (EpCAM) and epidermal growth factor receptor (EGFR) was applied to capture breast cancer CTCs and hepatocellular CTCs in vivo. The capture efficiency of hepatocellular CTCs was significantly increased from 3.17% to 26.67% and the capture efficiency of breast cancer CTCs slightly increased from 27.00% to 29.84% compared with EpCAM-based capture of CTCs. Meanwhile, the primary tumor origins of breast cancer CTCs and hepatocellular CTCs were simultaneously distinguished by specific aptamer-based fluorescence probes without any signal crosstalk. The results of in vivo experiments using the dual tumor-bearing mouse model confirmed the feasibility of this method to capture CTCs and identify primary tumor origins. This simple and efficient approach has potential for future applications in cancer diagnosis and prognosis.
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Affiliation(s)
- Min Jia
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Yifei Mao
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Chuanchen Wu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China
| | - Shuo Wang
- School of Medicine, Nankai University, Tianjin, 300457, China.
| | - Hongyan Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, 250014, PR China.
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Wu Q, Lin N, Tian T, Zhu Z, Wu L, Wang H, Wang D, Kang D, Tian R, Yang C. Evolution of Nucleic Acid Aptamers Capable of Specifically Targeting Glioma Stem Cells via Cell-SELEX. Anal Chem 2019; 91:8070-8077. [PMID: 31179688 DOI: 10.1021/acs.analchem.8b05941] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Glioma stem cells (GSCs), a particular group of cells from gliomas, are capable of infinite proliferation and differentiation. Recent studies have shown that GSCs may be the root of tumor recurrence, metastasis, and resistance. Early detection and targeted therapy of GSCs may significantly improve the survival rate of glioma patients. Therefore, molecular ligands capable of selectively recognizing GCSs are of great importance. The objective of this study is to generate DNA aptamers for selective identification of the molecular signature of GSCs using cell-based Systematic Evolution of Ligands by EXponential enrichment (cell-SELEX). GSCs were used as the positive selection target, while U87 cells were used in negative cycles for removal of DNA molecules binding to common glioma cell lines. Finally, we successfully identified one aptamer named W5-7 with a Kd value of 4.9 ± 1.4 nM. The sequence of the aptamer was further optimized, and its binding target was identified as a membrane protein. The aptamer W5-7 was stable in cerebral spinal fluid over 36 h and could also effectively detect glioma stem cells in cerebral spinal fluid samples. With its superb targeting properties and functional versatility, W5-7 holds great potential for use as a molecular probe for detecting and isolating GSCs.
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Affiliation(s)
- Qiaoyi Wu
- Department of Neurosurgery, Department of Emergency Surgery , The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University , Fuzhou 350004 , P.R. China
| | - Ningqin Lin
- Department of Neurosurgery, Department of Emergency Surgery , The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University , Fuzhou 350004 , P.R. China
| | - Tian Tian
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , P.R. China
| | - Zhi Zhu
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , P.R. China
| | - Liang Wu
- Department of Neurosurgery, Department of Emergency Surgery , The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University , Fuzhou 350004 , P.R. China
| | - Hongyao Wang
- Department of Neurosurgery, Department of Emergency Surgery , The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University , Fuzhou 350004 , P.R. China
| | - Dengliang Wang
- Department of Neurosurgery, Department of Emergency Surgery , The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University , Fuzhou 350004 , P.R. China
| | - Dezhi Kang
- Department of Neurosurgery, Department of Emergency Surgery , The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University , Fuzhou 350004 , P.R. China
| | - Ruijun Tian
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , P.R. China
| | - Chaoyong Yang
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , P.R. China.,Institute of Molecular Medicine , Renji Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai 200127 , P.R. China
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Zhang WY, Chen HL, Chen QC. In vitro selection of aptamer S1 against MCF-7 human breast cancer cells. Bioorg Med Chem Lett 2019; 29:2393-2397. [PMID: 31196711 DOI: 10.1016/j.bmcl.2019.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/28/2019] [Accepted: 06/01/2019] [Indexed: 12/14/2022]
Abstract
Breast cancer is the most common female cancer. However, the known effective specific biomarkers for breast cancer are still scarce. Abnormal membrane proteins serve as ideal biomarkers for disease diagnoses, therapeutics and prognosis. Thus aptamers (single-stranded oligonucleotide molecules) with molecular recognition properties can be used as efficient tools to sort cells based on differences in cell surface architecture between normal and tumor cells. In this study, we aimed to screen specific aptamer against MCF-7 human breast cancer cells. Cell-SELEX process was performed to isolate aptamers from a combinatorial single-stranded nucleic acid library that selectively targeting surface proteins of MCF-7 cells in contrast with MCF-10A human mammary epithelial cells. The process was repeated until the pool was enriched for sequences that specifically recognizing MCF-7 cells in monitoring by flow cytometry. Subsequently, the enriched pool was cloned into bacteria, and positive clones were sequenced to obtain individual sequences. Representative sequences were chemically synthesized and evaluated their binding affinities to MCF-7 cells. As a result, an aptamer S1 was finally identified to have high binding affinity with equilibrium dissociation constant (Kd) value of 29.9 ± 6.0 nM. FAM-labeled aptamer S1 induced fluorescence shift in MCF-7 cells but not in MCF-10A human mammary epithelial cells, or MDA-MB-453 and MDA-MB-231 human breast cancer cells. Furthermore, result of cell imaging observed from laser confocal fluorescence microscope showed that MCF-7 cells exhibited stronger fluorescence signal resulted from Cy5-labeled aptamer S1 than MCF-10A cells. The above findings suggested that S1 may be a specificity and selectivity aptamer for MCF-7 cells and useful for the breast cancer detection and diagnosis.
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Affiliation(s)
- Wei-Yun Zhang
- Department of Pharmacy, Xiamen Medical College, Xiamen 361023, China
| | - Hong-Li Chen
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Quan-Cheng Chen
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China; Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen, Fujian 361102, China.
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Poturnayová A, Dzubinová Ľ, Buríková M, Bízik J, Hianik T. Detection of Breast Cancer Cells Using Acoustics Aptasensor Specific to HER2 Receptors. BIOSENSORS 2019; 9:E72. [PMID: 31137893 PMCID: PMC6627288 DOI: 10.3390/bios9020072] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/17/2019] [Accepted: 05/23/2019] [Indexed: 12/02/2022]
Abstract
Detection of the breast cancer cells is important for early diagnosis of the cancer. We applied thickness shear mode acoustics method (TSM) for detection of SK-BR-3 breast cancer cells using DNA aptamers specific to HER2 positive membrane receptors. The biotinylated aptamers were immobilized at the neutravidin layer chemisorbed at gold surface of TSM transducer. Addition of the cells resulted in decrease of resonant frequency, fs, and in increase of motional resistance, Rm. Using gold nanoparticles (AuNPs), modified by aptamers it was possible improving the limit of detection (LOD) that reached 550 cells/mL, while without amplification the sensitivity of the detection of SK-BR-3 cells was 1574 cells/mL. HER2 negative cell line MDA-MB-231 did not resulted in significant changes of fs. The viability studies demonstrated that cells are stable at experimental conditions used during at least 8 h. AuNPs were not toxic on the cells up to concentration of 1 μg/mL.
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Affiliation(s)
- Alexandra Poturnayová
- Institute of Animal Biochemistry and Genetics, Center of Biosciences SAS, Dúbravská cesta 9, 840 05 Bratislava, Slovakia.
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48 Bratislava, Slovakia.
| | - Ľudmila Dzubinová
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48 Bratislava, Slovakia.
| | - Monika Buríková
- Cancer Research Institute, Biomedical Research Center SAS, Dúbravská cesta 9, 840 05 Bratislava, Slovakia.
| | - Jozef Bízik
- Cancer Research Institute, Biomedical Research Center SAS, Dúbravská cesta 9, 840 05 Bratislava, Slovakia.
| | - Tibor Hianik
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48 Bratislava, Slovakia.
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Zhao Y, Ma W, Zou S, Chen B, Cheng H, He X, Wang K. Terminal deoxynucleotidyl transferase-initiated molecule beacons arrayed aptamer probe for sensitive detection of metastatic colorectal cancer cells. Talanta 2019; 202:152-158. [PMID: 31171163 DOI: 10.1016/j.talanta.2019.04.065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the world, which can lead to considerably high mortality rate. It was reported that the prognosis is extremely poor and survival is often measured in months once CRC metastases become clinically evident. Therefore, the development of effective approach for metastatic CRC cells detection and imaging may potentially be significant and helpful for CRC prognosis and treatment. Therefore, we proposed a sensitive and specific approach for high-metastatic CRC LoVo cells detection and imaging by using terminal deoxynucleotidyl transferase (TdT)-initiated molecule beacons (MBs) arrayed fluorescent aptamer probes (denoted as TMAP). In this approach, the aptamer W3 targeting high-metastatic CRC LoVo cells was elongated to form W3-poly A at the 3'-hydroxyl terminus with repeated A bases in the presence of TdT and dATP. The MBs designed with poly T sequence in the loop were then hybridized with the poly A in the aptamer W3. The TMAP was easily constructed without the need of aptamer modification. It was demonstrated that this approach could specifically detect and image the high-metastatic CRC LoVo cells from the mixture of high-metastatic CRC LoVo cells and non-metastatic HCT-8 cells. Compared with 6-carboxyfluorescein (6-FAM) labeled aptamer W3, the TMAP was demonstrated to have a much stronger fluorescence signal on the target cells, realizing a 4-fold increase in signal-to-background ratio (SBR). Determination by flow cytometry allowed for detection of as low as 23 CRC LoVo cells in 200 μL cell culture medium. The high sensitivity and the capability for using in complicate biological samples imply that this approach holds considerable potential for metastatic CRC detection and therapy.
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Affiliation(s)
- Yujie Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China
| | - Wenjie Ma
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China
| | - Shanzi Zou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China
| | - Biao Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China
| | - Hong Cheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China.
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Key Laboratory for Bio-Nanotechnology and Molecule Engineering of Hunan Province, Changsha, 410082, China.
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Wu Q, Wang Y, Wang H, Wu L, Zhang H, Song Y, Zhu Z, Kang D, Yang C. DNA aptamers from whole-cell SELEX as new diagnostic agents against glioblastoma multiforme cells. Analyst 2019; 143:2267-2275. [PMID: 29708252 DOI: 10.1039/c8an00271a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Glioma is a cancer derived from transformed glial cells, which are often invasive and display a heterogeneous cell population. Currently, no trustworthy biomarkers for the detection and risk stratification of glioma have been discovered. The objective of the present research was to select DNA aptamers to facilitate early diagnosis and effective therapy of glioma. Using cell-SELEX, three aptamers (WYZ-37, WYZ-41, WYZ-50), which can specifically recognize the molecular differences between target cells T98G and negative cells SVGp12, were identified. The best binding sequences WYZ-41 and WYZ-50 were optimized in length, resulting in aptamer sequences WYZ-41a and WYZ-50a. The Kd values of the aptamers WYZ-41a and WYZ-50a against the target cell line were found to be 1.0 ± 0.2 nM and 2.8 ± 0.6 nM, respectively, which are better than the Kds for full-length aptamers WYZ-41 and WYZ-50. Flow cytometry analysis results show that the aptamers WYZ-41a and WYZ-50a do not influence each other in mutual binding, and that they effectively detect the target even in complex mixtures, such as undiluted fetal bovine serum (FBS) and cerebral spinal fluid (CSF), indicating that aptamers WYZ-41a and WYZ-50a have excellent potential as aptamer pairs to improve the accuracy of glioma diagnosis.
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Affiliation(s)
- Qiaoyi Wu
- The First Affiliated Hospital of Fujian Medical University, the First Clinical Medical College of Fujian Medical University, Fuzhou 350004, PR China.
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Gao G, Liu C, Jain S, Li D, Wang H, Zhao Y, Liu J. Potential use of aptamers for diagnosis and treatment of pancreatic cancer. J Drug Target 2019; 27:853-865. [PMID: 30596288 DOI: 10.1080/1061186x.2018.1564924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Pancreatic cancer (PC) is highly malignant with a low 5-year survival rate. PC currently does not have good early diagnostic markers and responses poorly to chemotherapeutic drugs. The search for better biomarkers and developing more effective chemotherapy are important ways to improve the healthcare of PC patients. Aptamers are single-stranded nucleic acids with high binding affinity and specificity to target molecules. Many aptamers against different forms of cancer including PC have been selected for both diagnostic and therapeutic use. Aptamers can work as ligands to distinguish tumour cells from normal cells. Using cells as selection targets, the obtained aptamers have been used to discover new cancer biomarkers after identification of the binding target. Aptamers have been shown to have antagonists effect on cancer cell proliferation, apoptosis, and metastasis. In addition, aptamers have been used as carriers to deliver therapeutic agents to selectively kill PC cells. This review summarises the potential use of aptamers in the diagnosis and treatment of PC.
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Affiliation(s)
- Ge Gao
- a Faculty of Laboratory Medicine , Xiangya Medical College, Central South University , Changsha , China.,b Department of Clinical Laboratory , Third Xiangya Hospital, Central South University , Changsha , China
| | - Can Liu
- a Faculty of Laboratory Medicine , Xiangya Medical College, Central South University , Changsha , China.,b Department of Clinical Laboratory , Third Xiangya Hospital, Central South University , Changsha , China
| | - Sona Jain
- c Department of Chemistry , Waterloo Institute for Nanotechnology, University of Waterloo , Waterloo , Canada
| | - Dai Li
- c Department of Chemistry , Waterloo Institute for Nanotechnology, University of Waterloo , Waterloo , Canada.,d Department of Pharmacology , Xiangya Hospital, Central South University , Changsha , China
| | - Hai Wang
- a Faculty of Laboratory Medicine , Xiangya Medical College, Central South University , Changsha , China.,b Department of Clinical Laboratory , Third Xiangya Hospital, Central South University , Changsha , China
| | - Yongxin Zhao
- a Faculty of Laboratory Medicine , Xiangya Medical College, Central South University , Changsha , China.,b Department of Clinical Laboratory , Third Xiangya Hospital, Central South University , Changsha , China
| | - Juewen Liu
- c Department of Chemistry , Waterloo Institute for Nanotechnology, University of Waterloo , Waterloo , Canada
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Wang J, Gao T, Luo Y, Wang Z, Zhang Y, Zhang Y, Zhang Y, Pei R. In Vitro Selection of a DNA Aptamer by Cell-SELEX as a Molecular Probe for Cervical Cancer Recognition and Imaging. J Mol Evol 2019; 87:72-82. [PMID: 30659315 DOI: 10.1007/s00239-019-9886-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 01/09/2019] [Indexed: 12/25/2022]
Abstract
Aptamers have become the most promising recognition reagents in terms of early diagnosis and effective treatment of cancers. In this study, using cervical cancer as a model, we have identified a DNA aptamer specifically binding to cervical cancer cells with high affinity using the cell-SELEX (systematic evolution of ligands by exponential enrichment) method, in which a negative selection was carried out using normal epithelial cells as control. The binding abilities of 6 selected truncated aptamers were determined by laser confocal fluorescence microscopy and flow cytometry, while most of them only recognize the target cells and do not bind the control cells, and the aptamer C-9S with 51-mer shows the best binding affinity to Ca Ski cells (target cells) with a dissociation constant value of 19.3 ± 2.9 nM. Moreover, at physiological temperature, C-9S remains its specific recognition capability to Ca Ski cells as well. Meanwhile, C-9S shows a similar binding ability to another cervical cancer cells (HeLa). Therefore, on the basis of its excellent targeting properties and inherent functional versatility of aptamer, C-9S holds great potential to be a molecular probe for early detection, in vivo imaging, and targeted delivery for further researches in cancer.
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Affiliation(s)
- Jine Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Tian Gao
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Yu Luo
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zhili Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Yajie Zhang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Ye Zhang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
| | - Yuanyuan Zhang
- School of Life Science, Anhui Medical University, Hefei, 230032, China.
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China.
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei, 230026, China.
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Genetic Alphabet Expansion Provides Versatile Specificities and Activities of Unnatural-Base DNA Aptamers Targeting Cancer Cells. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 14:158-170. [PMID: 30594072 PMCID: PMC6307347 DOI: 10.1016/j.omtn.2018.11.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/26/2018] [Accepted: 11/15/2018] [Indexed: 11/25/2022]
Abstract
The potential of genetic alphabet expansion technologies using artificial extra base pairs (unnatural base pairs) has been rapidly expanding and increasing. We present that the hydrophobic unnatural base, 7-(2-thienyl)imidazo[4,5-b]pyridine (Ds), which acts as a fifth letter in a DNA library, provides a series of high-affinity DNA aptamers with versatile binding specificities and activities to cancer cells. These Ds-containing DNA aptamers were generated by a method called cell-ExSELEX to target three breast cancer cell lines: MCF7, MDA-MB-231, and T-47D. Aptamer 14A-MCF7, which targets MCF7 cells, specifically binds to MCF7 cells, but not other cancer cell lines. Aptamer 07-MB231, which targets MDA-MB-231 cells, binds to a series of metastatic bone and lung cancer cell lines. Aptamer 05-MB231 targets MDA-MB-231 cells, but it also binds to all of the cancer and leukemia cell lines that we examined. None of these aptamers bind to normal cell lines, such as MCF10A and HUVEC. In addition, aptamers 14A-MCF7 and 05-MB231 are internalized within the cancer cells, and aptamer 05-MB231 possesses anti-proliferative properties against most cancer cell lines that we examined. These aptamers and the generation method are broadly applicable to cancer cell imaging, biomarker discovery, cancer cell profiling, anti-cancer therapies, and drug delivery systems.
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Camorani S, Fedele M, Zannetti A, Cerchia L. TNBC Challenge: Oligonucleotide Aptamers for New Imaging and Therapy Modalities. Pharmaceuticals (Basel) 2018; 11:ph11040123. [PMID: 30428522 PMCID: PMC6316260 DOI: 10.3390/ph11040123] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/02/2018] [Accepted: 11/09/2018] [Indexed: 12/11/2022] Open
Abstract
Compared to other breast cancers, triple-negative breast cancer (TNBC) usually affects younger patients, is larger in size, of higher grade and is biologically more aggressive. To date, conventional cytotoxic chemotherapy remains the only available treatment for TNBC because it lacks expression of the estrogen receptor (ER), progesterone receptor (PR) and epidermal growth factor receptor 2 (HER2), and no alternative targetable molecules have been identified so far. The high biological and clinical heterogeneity adds a further challenge to TNBC management and requires the identification of new biomarkers to improve detection by imaging, thus allowing the specific treatment of each individual TNBC subtype. The Systematic Evolution of Ligands by EXponential enrichment (SELEX) technique holds great promise to the search for novel targetable biomarkers, and aptamer-based molecular approaches have the potential to overcome obstacles of current imaging and therapy modalities. In this review, we highlight recent advances in oligonucleotide aptamers used as imaging and/or therapeutic agents in TNBC, discussing the potential options to discover, image and hit new actionable targets in TNBC.
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Affiliation(s)
- Simona Camorani
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale G. Salvatore (IEOS), CNR, 80145 Naples, Italy.
| | - Monica Fedele
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale G. Salvatore (IEOS), CNR, 80145 Naples, Italy.
| | | | - Laura Cerchia
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale G. Salvatore (IEOS), CNR, 80145 Naples, Italy.
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Yu F, Li H, Sun W, Zhao Y, Xu D, He F. Selection of aptamers against Lactoferrin based on silver enhanced and fluorescence-activated cell sorting. Talanta 2018; 193:110-117. [PMID: 30368278 DOI: 10.1016/j.talanta.2018.09.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 09/13/2018] [Accepted: 09/18/2018] [Indexed: 02/07/2023]
Abstract
We report a novel method for efficiently screening aptamers from a complex ssDNA library based on silver decahedral nanoparticles (AgNP) and fluorescence activated cell sorting (FACS). In this method, target protein (lactoferrin) and negative proteins (α-lactalbumin, β-lactoglobulin, bovine serum albumin, casein) were respectively immobilized on polystyrene microspheres (PS) to form PSLac, PSα-Lac, PSβ-Lac, PSBSA and PSCas. PSLac was firstly interacted with Cy5 labeled library (Lib), then hybridized with Cy5 modified silver decahedral nanoparticles (AgNPCy5) to form PSLac/Lib/AgNPCy5 conjugates. FACS was used to separate and collect PSLac/Lib/AgNPCy5 conjugates from complicated complex. AgNP was used to increase the fluorescence intensity in the selecting process and choose non-self-hybridization of Lib. Six aptamers (Ylac1, Ylac4, Ylac5, Ylac6, Ylac8 and Ylac9) were obtained after five-round of selection. These aptamers showed good specificity towards lactoferrin in the presence of negative proteins. The equilibrium dissociation constants (Kd) of six aptamers were calculated and all were in the nanomolar range. In a word, AgNP-FACS SELEX (AgFACS-SELEX) is a rapid, sensitive and highly efficient method for screening aptamers.
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Affiliation(s)
- Fang Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210046, China
| | - Hui Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210046, China.
| | - Wei Sun
- State Key Laboratory of Proteomics, National Center for Protein Sciences Beijing, Beijing Institute of Radiation Medicine, Beijing 102206, China
| | - Yaju Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210046, China
| | - Danke Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210046, China.
| | - Fuchu He
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210046, China; State Key Laboratory of Proteomics, National Center for Protein Sciences Beijing, Beijing Institute of Radiation Medicine, Beijing 102206, China.
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Zhang H, Wang Z, Xie L, Zhang Y, Deng T, Li J, Liu J, Xiong W, Zhang L, Zhang L, Peng B, He L, Ye M, Hu X, Tan W. Molecular Recognition and In-Vitro-Targeted Inhibition of Renal Cell Carcinoma Using a DNA Aptamer. MOLECULAR THERAPY-NUCLEIC ACIDS 2018; 12:758-768. [PMID: 30141409 PMCID: PMC6108068 DOI: 10.1016/j.omtn.2018.07.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 07/25/2018] [Accepted: 07/26/2018] [Indexed: 01/12/2023]
Abstract
Renal cell carcinoma (RCC) is the most common malignant tumor of the urinary system, and it has a high frequency of local invasion and distant metastasis. Although multiple advances have been made in the diagnosis and therapy of RCC, the vast majority of patients with metastatic RCC remain incurable. In this study, an aptamer named SW-4 against RCC 786-O cells was identified from a known sequence pool. The identified aptamer exhibited high binding affinity for target cells with dissociation constants in the nanomolar range. Binding analysis revealed that SW-4 only bound to RCC 786-O cells, but not HEK293T cells or human proximal tubular HK-2 cells, indicating that SW-4 has excellent binding selectivity. By sequence optimization, the 26-nt truncated SW-4b demonstrated improved binding affinity, and it was internalized into target cells via caveolae-mediated endocytosis in a temperature-dependent manner. Furthermore, fluorescence imaging confirmed that SW-4b accumulated at tumor sites in 786-O xenograft nude mice models and specifically recognized clinical RCC tissues. Meanwhile, SW-4b inhibited proliferation of 786-O cells by arresting cell cycle progression at the S phase. Taken together, these results indicate that SW-4b is a potential candidate for development into a novel tool for diagnosis and targeted therapy of RCC.
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Affiliation(s)
- Hui Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Zhibo Wang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Lin Xie
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Yibin Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Tanggang Deng
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Jianglin Li
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Jing Liu
- Molecular Biology Research Center, School of Life Sciences, Central South University, Changsha, Hunan 410078, China
| | - Wei Xiong
- Ophthalmology and Eye Research Center, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Lei Zhang
- Department of Nephrology, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Lin Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Bo Peng
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China
| | - Leye He
- Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China.
| | - Xiaoxiao Hu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China.
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theranostics, Hunan University, Changsha 410082, China.
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Diao D, Qiao N, Wu X, Li J, Lou X. An efficient method to evaluate experimental factor influence on in vitro binding of aptamers. Anal Biochem 2018; 556:7-15. [PMID: 29913134 DOI: 10.1016/j.ab.2018.06.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 12/11/2022]
Abstract
Nucleic acid-based aptamers are promising alternative to antibodies, however, their selection process (SELEX) is challenging. A number of simulations and few experiments have been reported offering insights into experimental factors (EFs) that govern the effectiveness of the selection process. Though useful, these previous studied were either lack of experimental confirmation, or considered limited EFs. A more efficient experimental method is highly desired. In this study, we developed a fast method that is capable to quantitatively probe the influence of multiple EFs. Based on the fact that the aptamer enrichment efficiency is highly affected by background binding, the binding ratio between the numbers of specific aptamer binders and nonspecific (unselected library) binders per bead was used to quantitatively evaluate EF effects. Taking thrombin and streptavidin as models, three previously studied EFs (surface coverage, buffer composition, and DNA concentration) and four never-studied ones (surface chemistry, heat treatment, elution methodology and pool purity) were investigated. The EFs greatly affected binding ratio (ranging from 0.03 ± 0.03 to 14.60 ± 2.30). The results were in good agreement with the literature, suggesting the good feasibility of our method. Our study provides guidance for the choice of EFs not only for aptamer selection, but also for binding evaluation of aptamers.
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Affiliation(s)
- Donglin Diao
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing, 100048, China
| | - Na Qiao
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing, 100048, China
| | - Xiao Wu
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing, 100048, China
| | - Jiyuan Li
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing, 100048, China
| | - Xinhui Lou
- Department of Chemistry, Capital Normal University, Xisanhuan North Road. 105, Beijing, 100048, China.
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Srivithya V, Roun H, Sekhar Babu M, Jae Hyung P, Sung Ha P. Aptamer-conjugated DNA nano-ring as the carrier of drug molecules. NANOTECHNOLOGY 2018; 29:095602. [PMID: 29271356 DOI: 10.1088/1361-6528/aaa3cb] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to its predictable self-assembly and structural stability, structural DNA nanotechnology is considered one of the main interdisciplinary subjects encompassing conventional nanotechnology and biotechnology. Here we have fabricated the mucin aptamer (MUC1)-conjugated DNA nano-ring intercalated with doxorubicin (DNRA-DOX) as potential therapeutics for breast cancer. DNRA-DOX exhibited significantly higher cytotoxicity to the MCF-7 breast cancer cells than the controls, including DOX alone and the aptamer deficient DNA nano-ring (DNR) with doxorubicin. Interactions between DOX and DNRA were studied using spectrophotometric measurements. Dose-dependent cytotoxicity was performed to prove that both DNR and DNRA were non-toxic to the cells. The drug release profile showed a controlled release of DOX at normal physiological pH 7.4, with approximately 61% released, but when exposed to lysosomal of pH 5.5, the corresponding 95% was released within 48 h. Owing to the presence of the aptamer, DNRA-DOX was effectively taken up by the cancer cells, as confirmed by confocal microscopy, implying that it has potential for use in targeted drug delivery.
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Affiliation(s)
- Vellampatti Srivithya
- Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), and Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Shi X, He Y, Gao W, Liu X, Ye Z, Liu H, Xiao L. Quantifying the Degree of Aggregation from Fluorescent Dye-Conjugated DNA Probe by Single Molecule Photobleaching Technology for the Ultrasensitive Detection of Adenosine. Anal Chem 2018; 90:3661-3665. [PMID: 29468866 DOI: 10.1021/acs.analchem.7b05317] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this work, we demonstrated a single molecule photobleaching-based strategy for the ultrasensitive detection of adenosine. A modified split aptamer was designed to specifically recognize individual adenosine molecules in solution. The specific binding of dye-labeled short strand DNA probes onto the elongated aptamer strand in the presence of adenosine resulted in a concentration-dependent self-aggregation process. The degree-of-aggregation (DOA) of the short DNA probes on the elongated aptamer strand could then be accurately determined based on the single molecule photobleaching measurement. Through statistically analyzing the DOA under different target concentrations, a well-defined curvilinear relationship between the DOA and target molecule concentration (e.g., adenosine) was established. The limit-of-detection (LOD) is down to 44.5 pM, which is lower than those recently reported results with fluorescence-based analysis. Owing to the high sensitivity and excellent selectivity, the sensing strategy described herein would find broad applications in biomolecule analysis under complicated surroundings.
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Affiliation(s)
- Xingbo Shi
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology , Hunan Agricultural University , Changsha , 410128 , China.,State Key Laboratory of Chemo/Biosensing and Chemometrics , Hunan University , Changsha 410082 , China
| | - Yu He
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology , Hunan Agricultural University , Changsha , 410128 , China
| | - Wenli Gao
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology , Hunan Agricultural University , Changsha , 410128 , China
| | - Xiaoying Liu
- College of Science , Hunan Agricultural University , Changsha , 410128 , China
| | - Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China
| | - Hua Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry , Nankai University , Tianjin , 300071 , China
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Prusty DK, Adam V, Zadegan RM, Irsen S, Famulok M. Supramolecular aptamer nano-constructs for receptor-mediated targeting and light-triggered release of chemotherapeutics into cancer cells. Nat Commun 2018; 9:535. [PMID: 29416033 PMCID: PMC5803212 DOI: 10.1038/s41467-018-02929-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 01/09/2018] [Indexed: 12/01/2022] Open
Abstract
Platforms for targeted drug-delivery must simultaneously exhibit serum stability, efficient directed cell internalization, and triggered drug release. Here, using lipid-mediated self-assembly of aptamers, we combine multiple structural motifs into a single nanoconstruct that targets hepatocyte growth factor receptor (cMet). The nanocarrier consists of lipidated versions of a cMet-binding aptamer and a separate lipidated GC-rich DNA hairpin motif loaded with intercalated doxorubicin. Multiple 2',6'-dimethylazobenzene moieties are incorporated into the doxorubicin-binding motif to trigger the release of the chemotherapeutics by photoisomerization. The lipidated DNA scaffolds self-assemble into spherical hybrid-nanoconstructs that specifically bind cMet. The combined features of the nanocarriers increase serum nuclease resistance, favor their import into cells presumably mediated by endocytosis, and allow selective photo-release of the chemotherapeutic into the targeted cells. cMet-expressing H1838 tumor cells specifically internalize drug-loaded nanoconstructs, and subsequent UV exposure enhances cell mortality. This modular approach thus paves the way for novel classes of powerful aptamer-based therapeutics.
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Affiliation(s)
- Deepak K Prusty
- Life and Medical Sciences (LIMES) Institute, Chemical Biology & Medicinal Chemistry Unit, c/o Kekulé Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany
- Stiftung Caesar, Max-Planck-Fellowship Group Chemical Biology, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Volker Adam
- Life and Medical Sciences (LIMES) Institute, Chemical Biology & Medicinal Chemistry Unit, c/o Kekulé Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany
| | - Reza M Zadegan
- Nanoscale Materials & Device Group, Micron School of Materials Science and Engineering, Boise State University, Boise, USA
| | - Stephan Irsen
- Stiftung Caesar, Elektronenmikroskopie und Analytik, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Michael Famulok
- Life and Medical Sciences (LIMES) Institute, Chemical Biology & Medicinal Chemistry Unit, c/o Kekulé Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Strasse 1, 53121, Bonn, Germany.
- Stiftung Caesar, Max-Planck-Fellowship Group Chemical Biology, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany.
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50
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Yang DK, Chou CF, Chen LC. Selection of aptamers for AMACR detection from DNA libraries with different primers. RSC Adv 2018; 8:19067-19074. [DOI: 10.1039/c8ra01808a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/13/2018] [Indexed: 11/21/2022] Open
Abstract
This study demonstrates a library-based approach to obtain aptamers with different binding properties for flexible design of AMACR detection.
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Affiliation(s)
- Deng-Kai Yang
- Department of Bio-Industrial Mechatronics Engineering
- National Taiwan University
- Taipei
- R. O. C
- Institute of Physics
| | - Chia-Fu Chou
- Institute of Physics
- Academia Sinica
- Taipei
- R. O. C
| | - Lin-Chi Chen
- Department of Bio-Industrial Mechatronics Engineering
- National Taiwan University
- Taipei
- R. O. C
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