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Panda VK, Mishra B, Nath AN, Butti R, Yadav AS, Malhotra D, Khanra S, Mahapatra S, Mishra P, Swain B, Majhi S, Kumari K, Radharani NNV, Kundu GC. Osteopontin: A Key Multifaceted Regulator in Tumor Progression and Immunomodulation. Biomedicines 2024; 12:1527. [PMID: 39062100 PMCID: PMC11274826 DOI: 10.3390/biomedicines12071527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024] Open
Abstract
The tumor microenvironment (TME) is composed of various cellular components such as tumor cells, stromal cells including fibroblasts, adipocytes, mast cells, lymphatic vascular cells and infiltrating immune cells, macrophages, dendritic cells and lymphocytes. The intricate interplay between these cells influences tumor growth, metastasis and therapy failure. Significant advancements in breast cancer therapy have resulted in a substantial decrease in mortality. However, existing cancer treatments frequently result in toxicity and nonspecific side effects. Therefore, improving targeted drug delivery and increasing the efficacy of drugs is crucial for enhancing treatment outcome and reducing the burden of toxicity. In this review, we have provided an overview of how tumor and stroma-derived osteopontin (OPN) plays a key role in regulating the oncogenic potential of various cancers including breast. Next, we dissected the signaling network by which OPN regulates tumor progression through interaction with selective integrins and CD44 receptors. This review addresses the latest advancements in the roles of splice variants of OPN in cancer progression and OPN-mediated tumor-stromal interaction, EMT, CSC enhancement, immunomodulation, metastasis, chemoresistance and metabolic reprogramming, and further suggests that OPN might be a potential therapeutic target and prognostic biomarker for the evolving landscape of cancer management.
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Affiliation(s)
- Venketesh K. Panda
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Barnalee Mishra
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Angitha N. Nath
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Ramesh Butti
- Division of Hematology and Oncology, Department of Internal Medicine, Southwestern Medical Center, University of Texas, Dallas, TX 75235, USA;
| | - Amit Singh Yadav
- Biomedical Centre, Faculty of Medicine, Lund University, 223 62 Lund, Sweden; (A.S.Y.); (N.N.V.R.)
| | - Diksha Malhotra
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Sinjan Khanra
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Samikshya Mahapatra
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Priyanka Mishra
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Biswajit Swain
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Sambhunath Majhi
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - Kavita Kumari
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
| | - N. N. V. Radharani
- Biomedical Centre, Faculty of Medicine, Lund University, 223 62 Lund, Sweden; (A.S.Y.); (N.N.V.R.)
| | - Gopal C. Kundu
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar 751024, India; (V.K.P.); (B.M.); (A.N.N.); (D.M.); (S.K.); (S.M.); (P.M.); (B.S.); (S.M.); (K.K.)
- Kalinga Institute of Medical Sciences (KIMS), KIIT Deemed to be University, Bhubaneswar 751024, India
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Rabiee N, Ahmadi S, Rahimizadeh K, Chen S, Veedu RN. Metallic nanostructure-based aptasensors for robust detection of proteins. NANOSCALE ADVANCES 2024; 6:747-776. [PMID: 38298588 PMCID: PMC10825927 DOI: 10.1039/d3na00765k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/29/2023] [Indexed: 02/02/2024]
Abstract
There is a significant need for fast, cost-effective, and highly sensitive protein target detection, particularly in the fields of food, environmental monitoring, and healthcare. The integration of high-affinity aptamers with metal-based nanomaterials has played a crucial role in advancing the development of innovative aptasensors tailored for the precise detection of specific proteins. Aptamers offer several advantages over commonly used molecular recognition methods, such as antibodies. Recently, a variety of metal-based aptasensors have been established. These metallic nanomaterials encompass noble metal nanoparticles, metal oxides, metal-carbon nanotubes, carbon quantum dots, graphene-conjugated metallic nanostructures, as well as their nanocomposites, metal-organic frameworks (MOFs), and MXenes. In general, these materials provide enhanced sensitivity through signal amplification and transduction mechanisms. This review primarily focuses on the advancement of aptasensors based on metallic materials for the highly sensitive detection of protein targets, including enzymes and growth factors. Additionally, it sheds light on the challenges encountered in this field and outlines future prospects. We firmly believe that this review will offer a comprehensive overview and fresh insights into metallic nanomaterials-based aptasensors and their capabilities, paving the way for the development of innovative point-of-care (POC) diagnostic devices.
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Affiliation(s)
- Navid Rabiee
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University Perth WA 6150 Australia
- Precision Nucleic Acid Therapeutics, Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Sepideh Ahmadi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Kamal Rahimizadeh
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University Perth WA 6150 Australia
- Precision Nucleic Acid Therapeutics, Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Suxiang Chen
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University Perth WA 6150 Australia
- Precision Nucleic Acid Therapeutics, Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Rakesh N Veedu
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University Perth WA 6150 Australia
- Precision Nucleic Acid Therapeutics, Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
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Digifico E, Erreni M, Mannarino L, Marchini S, Ummarino A, Anfray C, Bertola L, Recordati C, Pistillo D, Roncalli M, Bossi P, Zucali PA, D’Incalci M, Belgiovine C, Allavena P. Important functional role of the protein osteopontin in the progression of malignant pleural mesothelioma. Front Immunol 2023; 14:1116430. [PMID: 37398648 PMCID: PMC10312076 DOI: 10.3389/fimmu.2023.1116430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/29/2023] [Indexed: 07/04/2023] Open
Abstract
Background Malignant Pleural Mesothelioma (MPM) is an aggressive cancer of the mesothelial lining associated with exposure to airborne non-degradable asbestos fibers. Its poor response to currently available treatments prompted us to explore the biological mechanisms involved in its progression. MPM is characterized by chronic non-resolving inflammation; in this study we investigated which inflammatory mediators are mostly expressed in biological tumor samples from MPM patients, with a focus on inflammatory cytokines, chemokines and matrix components. Methods Expression and quantification of Osteopontin (OPN) was detected in tumor and plasma samples of MPM patients by mRNA, immunohistochemistry and ELISA. The functional role of OPN was investigated in mouse MPM cell lines in vivo using an orthotopic syngeneic mouse model. Results In patients with MPM, the protein OPN was significantly more expressed in tumors than in normal pleural tissues and predominantly produced by mesothelioma cells; plasma levels were elevated in patients and associated with poor prognosis. However, modulation of OPN levels was not significantly different in a series of 18 MPM patients receiving immunotherapy with durvalumab alone or with pembrolizumab in combination with chemotherapy, some of whom achieved a partial clinical response. Two established murine mesothelioma cell lines: AB1 and AB22 of sarcomatoid and epithelioid histology, respectively, spontaneously produced high levels of OPN. Silencing of the OPN gene (Spp1) dramatically inhibited tumor growth in vivo in an orthotopic model, indicating that OPN has an important promoting role in the proliferation of MPM cells. Treatment of mice with anti-CD44 mAb, blocking a major OPN receptor, significantly reduced tumor growth in vivo. Conclusion These results demonstrate that OPN is an endogenous growth factor for mesothelial cells and inhibition of its signaling may be helpful to restrain tumor progression in vivo. These findings have translational potential to improve the therapeutic response of human MPM.
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Affiliation(s)
| | - Marco Erreni
- Unit of Advanced Optical Microscopy, IRCCS Humanitas Research Hospital, Milano, Italy
| | - Laura Mannarino
- Lab. Cancer Pharmacology, IRCCS Humanitas Research Hospital, Milano, Italy
- Department Biomedical Sciences, Humanitas University, Milano, Italy
| | - Sergio Marchini
- Lab. Cancer Pharmacology, IRCCS Humanitas Research Hospital, Milano, Italy
| | - Aldo Ummarino
- Department Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
- Department Biomedical Sciences, Humanitas University, Milano, Italy
| | - Clément Anfray
- Department Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Luca Bertola
- Mouse and Animal Pathology Lab., Fondazione Unimi, and Department of Veterinary Medicine and Animal Sciences, University of Milano, Lodi, Italy
| | - Camilla Recordati
- Mouse and Animal Pathology Lab., Fondazione Unimi, and Department of Veterinary Medicine and Animal Sciences, University of Milano, Lodi, Italy
| | - Daniela Pistillo
- Biobank, Humanitas IRCCS Humanitas Research Hospital, Milano, Italy
| | - Massimo Roncalli
- Department Pathology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Paola Bossi
- Department Pathology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Paolo Andrea Zucali
- Department Biomedical Sciences, Humanitas University, Milano, Italy
- Department Oncology, IRCCS Humanitas Research Hospital, Milano, Italy
| | - Maurizio D’Incalci
- Lab. Cancer Pharmacology, IRCCS Humanitas Research Hospital, Milano, Italy
- Department Biomedical Sciences, Humanitas University, Milano, Italy
| | | | - Paola Allavena
- Department Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
- Department Biomedical Sciences, Humanitas University, Milano, Italy
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Rogers MP, Kothari A, Read M, Kuo PC, Mi Z. Maintaining Myofibroblastic-Like Cancer-Associated Fibroblasts by Cancer Stemness Signal Transduction Feedback Loop. Cureus 2022; 14:e29354. [PMID: 36284815 PMCID: PMC9583706 DOI: 10.7759/cureus.29354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Myofibroblast-like cancer-associated fibroblasts (myCAF) in the tumor microenvironment (TME) promote cancer stemness, growth, and metastasis. Cancer cell-derived osteopontin (OPN) has been reported as a biomarker related to malignant cancer growth. In this study, we confirm that cancer cell stemness is required for the maintenance of an OPN-induced myCAF phenotype.
Methods: MDA-MB-231 or HepG2 cells and Sox2 knockout variants were co-cultured with human mesenchymal stem cells (MSC). In selected instances, the OPN bioactivity inhibitor OPN-R3 aptamer (APT), OPN-R3 mutant aptamer (MuAPT), or cancer cell stemness inhibitor BBI-608 were added separately. MDA-MB-231 cancer stemness and myCAF markers were quantified by real-time PCR. Stemness-lacking cancer cell mice models were created to confirm that stemness is required for the maintenance of the OPN-induced myCAF phenotype in vivo.
Results: In an MDA-MB-231 co-culture system, myCAF and stemness markers increased. Osteopontin and stemness blockade in this co-culture system decreased both myCAF and stemness marker expression, but OPN blockade after 72 hours had no effect. In contrast, when BBI608 was added at 72 hours, myCAF markers were abated after 36-hour treatment. Replacing wildtype with MDA-MB-231(-/-sox2) in co-cultures at 72 hours decreased myCAF marker expression to baseline despite the Western blot confirming the presence of OPN. Conversely, replacing MDA-MB-231(-/-sox2) cells with wildtype increased myCAF marker expression to a level equivalent to the MDA-MB-231+MSC co-culture system. In vivo osteopontin blockade diminished stemness and myCAF marker expression and stemness lacking cancer cell models, indicated by decreasing myCAF presence. Experiments were repeated in a HepG2 cell line with identical results.
Conclusions: Cancer and myCAF crosstalk increases myCAF maintenance and cancer cell stemness. In this study using human breast and liver cancer cell lines, maintenance of the OPN-induced myCAF phenotype also requires cancer stemness. This indicates that the myCAF phenotype requires two distinct signaling pathways: initiation and maintenance.
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Wang G, Zhong K, Wang Z, Zhang Z, Tang X, Tong A, Zhou L. Tumor-associated microglia and macrophages in glioblastoma: From basic insights to therapeutic opportunities. Front Immunol 2022; 13:964898. [PMID: 35967394 PMCID: PMC9363573 DOI: 10.3389/fimmu.2022.964898] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/05/2022] [Indexed: 12/15/2022] Open
Abstract
Glioblastoma (GBM) is the most common and malignant primary brain tumor in adults. Currently, the standard treatment of glioblastoma includes surgery, radiotherapy, and chemotherapy. Despite aggressive treatment, the median survival is only 15 months. GBM progression and therapeutic resistance are the results of the complex interactions between tumor cells and tumor microenvironment (TME). TME consists of several different cell types, such as stromal cells, endothelial cells and immune cells. Although GBM has the immunologically “cold” characteristic with very little lymphocyte infiltration, the TME of GBM can contain more than 30% of tumor-associated microglia and macrophages (TAMs). TAMs can release cytokines and growth factors to promote tumor proliferation, survival and metastasis progression as well as inhibit the function of immune cells. Thus, TAMs are logical therapeutic targets for GBM. In this review, we discussed the characteristics and functions of the TAMs and evaluated the state of the art of TAMs-targeting strategies in GBM. This review helps to understand how TAMs promote GBM progression and summarizes the present therapeutic interventions to target TAMs. It will possibly pave the way for new immune therapeutic avenues for GBM patients.
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Affiliation(s)
- Guoqing Wang
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Kunhong Zhong
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Zeng Wang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Zongliang Zhang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Tang
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Aiping Tong, ; Liangxue Zhou,
| | - Liangxue Zhou
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
- *Correspondence: Aiping Tong, ; Liangxue Zhou,
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Amilca-Seba K, Sabbah M, Larsen AK, Denis JA. Osteopontin as a Regulator of Colorectal Cancer Progression and Its Clinical Applications. Cancers (Basel) 2021; 13:cancers13153793. [PMID: 34359694 PMCID: PMC8345080 DOI: 10.3390/cancers13153793] [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: 06/16/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 12/29/2022] Open
Abstract
Simple Summary The mortality of colorectal cancer is principally related to metastatic disease at the time of diagnosis or to the growth of initially undetectable micro-metastasis. Current therapeutic strategies are efficient in patients with locally advanced cancer, but are rarely able to cure patients with metastatic disease. Therapeutic failure is mainly associated with drug resistance and an aggressive phenotype. The identification of new biomarkers for micro-metastasis and tumor progression remains an unmet clinical need that should allow for improved patient stratification for optimal treatment and may lead to the identification of novel therapeutic targets. Osteopontin (OPN), a multifunctional protein, has emerged as a potentially valuable biomarker in several cancer types. This review principally describes the molecular mechanisms of OPN that are associated with colorectal cancer (CRC) progression and metastasis, as well as the use of OPN as a clinical biomarker. This review identifies a role for OPN as a biomarker ready for extended clinical application and discusses its use as a therapeutic target. Abstract A high expression of the phosphoprotein osteopontin (OPN) has been associated with cancer progression in several tumor types, including breast cancer, hepatocarcinoma, ovarian cancer, and colorectal cancer (CRC). Interestingly, OPN is overexpressed in CRC and is associated with a poor prognosis linked to invasion and metastasis. Here, we review the regulation and functions of OPN with an emphasis on CRC. We examine how epigenetic and genetic regulators interact with the key signaling pathways involved in this disease. Then, we describe the role of OPN in cancer progression, including proliferation, survival, migration, invasion, and angiogenesis. Furthermore, we outline the interest of using OPN as a clinical biomarker, and discuss if and how osteopontin can be implemented as a routine assay in clinical laboratories for monitoring CRC patients. Finally, we discuss the use of OPN an attractive, but challenging, therapeutic target.
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Affiliation(s)
- Katyana Amilca-Seba
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France; (K.A.-S.); (M.S.); (A.K.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U938, 75012 Paris, France
- Institut Universitaire de Cancérologie (IUC), Faculté de Médecine, Sorbonne Université, 75005 Paris, France
| | - Michèle Sabbah
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France; (K.A.-S.); (M.S.); (A.K.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U938, 75012 Paris, France
- Institut Universitaire de Cancérologie (IUC), Faculté de Médecine, Sorbonne Université, 75005 Paris, France
- Centre National de la Recherche Scientifique (CNRS), 75016 Paris, France
| | - Annette K. Larsen
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France; (K.A.-S.); (M.S.); (A.K.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U938, 75012 Paris, France
- Institut Universitaire de Cancérologie (IUC), Faculté de Médecine, Sorbonne Université, 75005 Paris, France
- Centre National de la Recherche Scientifique (CNRS), 75016 Paris, France
| | - Jérôme A. Denis
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France; (K.A.-S.); (M.S.); (A.K.L.)
- Institut National de la Santé et de la Recherche Médicale (INSERM) U938, 75012 Paris, France
- Institut Universitaire de Cancérologie (IUC), Faculté de Médecine, Sorbonne Université, 75005 Paris, France
- Department of Endocrinology and Oncology Biochemistry, Pitié-Salpetrière Hospital, 75013 Paris, France
- Correspondence: ; Tel.: +33-(0)1-42-16-20-39
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Tran TTT, Delgado A, Jeong S. Organ-on-a-Chip: The Future of Therapeutic Aptamer Research? BIOCHIP JOURNAL 2021. [DOI: 10.1007/s13206-021-00016-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Gao T, Pei R. Isolation of DNA Aptamer Targeting PD-1 with an Antitumor Immunotherapy Effect. ACS APPLIED BIO MATERIALS 2020; 3:7080-7086. [PMID: 35019367 DOI: 10.1021/acsabm.0c00919] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Immune checkpoints play a vital role in regulating T cell responses. Programmed cell death 1 (PD-1), a key inhibitory immune-checkpoint receptor, negatively regulates the human immune response. Anti-PD-1 therapy is an immune-checkpoint inhibition therapy, which is a progressing clinical strategy in treating various human cancers. Aptamers, called "chemical antibodies", have several virtues, including better tissue penetration, lower immunogenicity, and ease of production. Here, after 10 rounds of selection using engineered cells with PD-1 overexpression as target cells, we successfully isolated four anti-PD-1 aptamer candidates using cell-SELEX (systematic evolution of ligands by exponential enrichment) procedure. Among them, the candidate PD4S showed the highest affinity with an equilibrium dissociation constant (Kd) of 10.3 nM and rescued the T cell function suppressed by PD-1/PD-L1. Treatment of PD4S in the CT26 carcinoma model showed an antitumor effect. Together, the anti-PD-1 aptamer PD4S could be applied as an alternative agent in immunotherapy.
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Affiliation(s)
- 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-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, 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-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
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Marshall ML, Wagstaff KM. Internalized Functional DNA Aptamers as Alternative Cancer Therapies. Front Pharmacol 2020; 11:1115. [PMID: 32848740 PMCID: PMC7396948 DOI: 10.3389/fphar.2020.01115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 07/08/2020] [Indexed: 01/22/2023] Open
Abstract
Despite major advances, cancer remains one of the largest burdens of disease worldwide. One reason behind this is that killing tumor cells without affecting healthy surrounding tissue remains a largely elusive prospect, despite the widespread availability of cytotoxic chemotherapeutic agents. To meet these modern healthcare requirements, it is essential to develop precision therapeutics that minimise off-target side-effects for various cancer types. To this end, highly specific molecular targeting agents against cancer are of great interest. These agents may work by targeting intracellular signalling pathways following receptor binding, or via internalization and targeting to specific subcellular compartments. DNA aptamers represent a promising molecular tool in this arena that can be used for both specific cell surface targeting and subsequent internalization and can also elicit a functional effect upon internalization. This review examines various cancer targeting cell-internalizing aptamers, with a particular focus towards functional aptamers that do not require additional conjugation to nanoparticles or small molecules to elicit a biological response. With a deeper understanding and precise exploitation of cancer specific molecular pathways, functional intracellular DNA aptamers may be a powerful step towards more widespread development of precision therapeutics.
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Affiliation(s)
- Morgan L Marshall
- Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Kylie M Wagstaff
- Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
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Gimba E, Brum M, Nestal De Moraes G. Full-length osteopontin and its splice variants as modulators of chemoresistance and radioresistance (Review). Int J Oncol 2018; 54:420-430. [DOI: 10.3892/ijo.2018.4656] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 10/25/2018] [Indexed: 11/06/2022] Open
Affiliation(s)
- Etel Gimba
- Program of Cellular and Molecular Oncobiology, National Cancer Institute, Rio de Janeiro 20231-050, Brazil
| | - Mariana Brum
- Program of Cellular and Molecular Oncobiology, National Cancer Institute, Rio de Janeiro 20231-050, Brazil
| | - Gabriela Nestal De Moraes
- Cellular and Molecular Hemato-Oncology Laboratory, Molecular Hemato-Oncology Program, National Cancer Institute, Rio de Janeiro 20230-130, Brazil
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Wei J, Marisetty A, Schrand B, Gabrusiewicz K, Hashimoto Y, Ott M, Grami Z, Kong LY, Ling X, Caruso H, Zhou S, Wang YA, Fuller GN, Huse J, Gilboa E, Kang N, Huang X, Verhaak R, Li S, Heimberger AB. Osteopontin mediates glioblastoma-associated macrophage infiltration and is a potential therapeutic target. J Clin Invest 2018; 129:137-149. [PMID: 30307407 DOI: 10.1172/jci121266] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 10/04/2018] [Indexed: 12/17/2022] Open
Abstract
Glioblastoma is highly enriched with macrophages, and osteopontin (OPN) expression levels correlate with glioma grade and the degree of macrophage infiltration; thus, we studied whether OPN plays a crucial role in immune modulation. Quantitative PCR, immunoblotting, and ELISA were used to determine OPN expression. Knockdown of OPN was achieved using complementary siRNA, shRNA, and CRISPR/Cas9 techniques, followed by a series of in vitro functional migration and immunological assays. OPN gene-deficient mice were used to examine the roles of non-tumor-derived OPN on survival of mice harboring intracranial gliomas. Patients with mesenchymal glioblastoma multiforme (GBM) show high OPN expression, a negative survival prognosticator. OPN is a potent chemokine for macrophages, and its blockade significantly impaired the ability of glioma cells to recruit macrophages. Integrin αvβ5 (ITGαvβ5) is highly expressed on glioblastoma-infiltrating macrophages and constitutes a major OPN receptor. OPN maintains the M2 macrophage gene signature and phenotype. Both tumor-derived and host-derived OPN were critical for glioma development. OPN deficiency in either innate immune or glioma cells resulted in a marked reduction in M2 macrophages and elevated T cell effector activity infiltrating the glioma. Furthermore, OPN deficiency in the glioma cells sensitized them to direct CD8+ T cell cytotoxicity. Systemic administration in mice of 4-1BB-OPN bispecific aptamers was efficacious, increasing median survival time by 68% (P < 0.05). OPN is thus an important chemokine for recruiting macrophages to glioblastoma, mediates crosstalk between tumor cells and the innate immune system, and has the potential to be exploited as a therapeutic target.
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Affiliation(s)
- Jun Wei
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Anantha Marisetty
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Brett Schrand
- Department of Microbiology & Immunology, Dodson Interdisciplinary Immunotherapy Institute, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA
| | - Konrad Gabrusiewicz
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yuuri Hashimoto
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Martina Ott
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Zacharia Grami
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ling-Yuan Kong
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xiaoyang Ling
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Hillary Caruso
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | | | - Gregory N Fuller
- Neuropathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jason Huse
- Neuropathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Eli Gilboa
- Department of Microbiology & Immunology, Dodson Interdisciplinary Immunotherapy Institute, Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida, USA
| | - Nannan Kang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Xingxu Huang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Roel Verhaak
- Jackson Laboratory of Genomic Medicine, Farmington, Connecticut, USA
| | - Shulin Li
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Amy B Heimberger
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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12
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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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13
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Kovacevic KD, Gilbert JC, Jilma B. Pharmacokinetics, pharmacodynamics and safety of aptamers. Adv Drug Deliv Rev 2018; 134:36-50. [PMID: 30321620 DOI: 10.1016/j.addr.2018.10.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 12/15/2022]
Abstract
Aptamers are synthetic molecules structured as single-stranded DNA or RNA oligonucleotides that can be designed to mimic the functional properties of monoclonal antibodies. They bind to the target molecules (typically soluble or cell-bound proteins) with high affinity (with picomolar to low nanomolar range) and specificity, and therefore can be an alternative to therapeutic antibodies or peptide ligands. This paper reviews published data regarding pharmacokinetics, pharmacodynamics and safety of aptamers from preclinical and clinical studies. Aptamers have been developed for the treatment of a variety of diseases, including cancer, macular degeneration,g cardiovascular disease, diabetes and anaemia of chronic diseases. There are several preclinical studies with unmodified aptamers, but the vast majority of aptamer trials in humans have been conducted with modified aptamers, because unmodified aptamers demonstrate metabolic instability, as well as rapid renal filtration and elimination. Various strategies have been developed to improve the pharmacokinetic profile of aptamers. Aside from chemical modification of nucleotides in order to stabilize them against nuclease degradation, the main modification to extend the half-life is pegylation. Therefore, the process of pegylation as well as its benefits and possible shortcomings will briefly be discussed.
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14
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Morita Y, Leslie M, Kameyama H, Volk DE, Tanaka T. Aptamer Therapeutics in Cancer: Current and Future. Cancers (Basel) 2018; 10:cancers10030080. [PMID: 29562664 PMCID: PMC5876655 DOI: 10.3390/cancers10030080] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 03/13/2018] [Accepted: 03/15/2018] [Indexed: 12/14/2022] Open
Abstract
Aptamer-related technologies represent a revolutionary advancement in the capacity to rapidly develop new classes of targeting ligands. Structurally distinct RNA and DNA oligonucleotides, aptamers mimic small, protein-binding molecules and exhibit high binding affinity and selectivity. Although their molecular weight is relatively small—approximately one-tenth that of monoclonal antibodies—their complex tertiary folded structures create sufficient recognition surface area for tight interaction with target molecules. Additionally, unlike antibodies, aptamers can be readily chemically synthesized and modified. In addition, aptamers’ long storage period and low immunogenicity are favorable properties for clinical utility. Due to their flexibility of chemical modification, aptamers are conjugated to other chemical entities including chemotherapeutic agents, siRNA, nanoparticles, and solid phase surfaces for therapeutic and diagnostic applications. However, as relatively small sized oligonucleotides, aptamers present several challenges for successful clinical translation. Their short plasma half-lives due to nuclease degradation and rapid renal excretion necessitate further structural modification of aptamers for clinical application. Since the US Food and Drug Administration (FDA) approval of the first aptamer drug, Macugen® (pegaptanib), which treats wet-age-related macular degeneration, several aptamer therapeutics for oncology have followed and shown promise in pre-clinical models as well as clinical trials. This review discusses the advantages and challenges of aptamers and introduces therapeutic aptamers under investigation and in clinical trials for cancer treatments.
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Affiliation(s)
- Yoshihiro Morita
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, 975 NE 10th, BRC-W, Rm 1415, Oklahoma City, OK 73104, USA.
| | - Macall Leslie
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, 975 NE 10th, BRC-W, Rm 1415, Oklahoma City, OK 73104, USA.
| | - Hiroyasu Kameyama
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, 975 NE 10th, BRC-W, Rm 1415, Oklahoma City, OK 73104, USA.
| | - David E Volk
- McGovern Medical School, Institute of Molecular Medicine, University of Texas Health Science Center at Houston, 1825 Hermann Pressler, Houston, TX 77030, USA.
| | - Takemi Tanaka
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, 975 NE 10th, BRC-W, Rm 1415, Oklahoma City, OK 73104, USA.
- Department of Pathology, College of Medicine, University of Oklahoma Health Sciences Center, 940 SL Young Blvd, Oklahoma City, OK 73104, USA.
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15
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Aptamer-siRNA Chimeras: Discovery, Progress, and Future Prospects. Biomedicines 2017; 5:biomedicines5030045. [PMID: 28792479 PMCID: PMC5618303 DOI: 10.3390/biomedicines5030045] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 08/02/2017] [Accepted: 08/03/2017] [Indexed: 02/07/2023] Open
Abstract
Synthetic nucleic acid ligands (aptamers) have emerged as effective delivery tools for many therapeutic oligonucleotide-based drugs, including small interfering RNAs (siRNAs). In this review, we summarize recent progress in the aptamer selection technology that has made possible the identification of cell-specific, cell-internalizing aptamers for the cell-targeted delivery of therapeutic oligonucleotides. In addition, we review the original, proof-of-concept aptamer-siRNA delivery studies and discuss recent advances in aptamer-siRNA conjugate designs for applications ranging from cancer therapy to the development of targeted antivirals. Challenges and prospects of aptamer-targeted siRNA drugs for clinical development are further highlighted.
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16
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Osteopontin at the Crossroads of Inflammation and Tumor Progression. Mediators Inflamm 2017; 2017:4049098. [PMID: 28769537 PMCID: PMC5523273 DOI: 10.1155/2017/4049098] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 06/04/2017] [Indexed: 12/13/2022] Open
Abstract
Complex interactions between tumor and host cells regulate systemic tumor dissemination, a process that begins early at the primary tumor site and goes on until tumor cells detach themselves from the tumor mass and start migrating into the blood or lymphatic vessels. Metastatic cells colonize the target organs and are capable of surviving and growing at distant sites. In this context, osteopontin (OPN) appears to be a key determinant of the crosstalk between cancer cells and the host microenvironment, which in turn modulates immune evasion. OPN is overexpressed in several human carcinomas and has been implicated in inflammation, tumor progression, and metastasis. Thus, it represents one of the most attracting targets for cancer therapy. Within the tumor mass, OPN is secreted in various forms either by the tumor itself or by stroma cells, and it can exert either pro- or antitumorigenic effects according to the cell type and tumor microenvironment. Thus, targeting OPN for therapeutic purposes needs to take into account the heterogeneous functions of the multiple OPN forms with regard to cancer formation and progression. In this review, we will describe the role of systemic, tumor-derived, and stroma-derived OPN, highlighting its pivotal role at the crossroads of inflammation and tumor progression.
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17
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Li J, Yousefi K, Ding W, Singh J, Shehadeh LA. Osteopontin RNA aptamer can prevent and reverse pressure overload-induced heart failure. Cardiovasc Res 2017; 113:633-643. [PMID: 28453726 PMCID: PMC7526752 DOI: 10.1093/cvr/cvx016] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 09/21/2016] [Accepted: 01/24/2017] [Indexed: 11/14/2022] Open
Abstract
AIMS Cardiac myocyte hypertrophy, the main compensatory response to chronic stress in the heart often progresses to a state of decompensation that can lead to heart failure. Osteopontin (OPN) is an effector for extracellular signalling that induces myocyte growth and fibrosis. Although increased OPN activity has been observed in stressed myocytes and fibroblasts, the detailed and long term effects of blocking OPN signalling on the heart remain poorly defined. Targeting cardiac OPN protein by an RNA aptamer may be beneficial for tuning down OPN pathologic signalling. We aimed to demonstrate the therapeutic effects of an OPN RNA aptamer on cardiac dysfunction. METHODS AND RESULTS In vivo, we show that in a mouse model of pressure overload, treating at the time of surgeries with an OPN aptamer prevented cardiomyocyte hypertrophy and cardiac fibrosis, blocked OPN downstream signalling (PI3K and Akt phosphorylation), reduced expression of extracellular matrix (Lum, Col3a1, Fn1) and hypertrophy (Nppa, Nppb) genes, and prevented cardiac dysfunction. Treating at two months post-surgeries with the OPN aptamer reversed cardiac dysfunction and fibrosis and myocyte hypertrophy. While genetic homozygous deletion of OPN reduced myocardial wall thickness, surprisingly cardiac function and myocardial fibrosis, specifically collagen deposition and myofibroblast infiltration, were worse compared with wild type mice at three months of pressure overload. CONCLUSION Taken together, these data demonstrate that tuning down cardiac OPN signalling by an OPN RNA aptamer is a novel and effective approach for preventing cardiac hypertrophy and fibrosis, improving cardiac function, and reversing pressure overload-induced heart failure.
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MESH Headings
- Animals
- Aorta/physiopathology
- Aorta/surgery
- Aptamers, Nucleotide/genetics
- Aptamers, Nucleotide/metabolism
- Arterial Pressure
- Collagen Type III/metabolism
- Cytokines/metabolism
- Disease Models, Animal
- Fibrosis
- Gene Expression Regulation
- Genetic Predisposition to Disease
- Heart Failure/genetics
- Heart Failure/metabolism
- Heart Failure/physiopathology
- Heart Failure/prevention & control
- Hypertrophy, Left Ventricular/genetics
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Ligation
- Lumican/metabolism
- Mice, 129 Strain
- Mice, Inbred C57BL
- Mice, Knockout
- Myocardium/metabolism
- Myocardium/pathology
- Osteopontin/deficiency
- Osteopontin/genetics
- Osteopontin/metabolism
- Phenotype
- Phosphatidylinositol 3-Kinase/metabolism
- Phosphorylation
- Proto-Oncogene Proteins c-akt/metabolism
- Signal Transduction
- Time Factors
- Ventricular Dysfunction, Left/genetics
- Ventricular Dysfunction, Left/metabolism
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Dysfunction, Left/prevention & control
- Ventricular Function, Left
- Ventricular Remodeling
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Affiliation(s)
- Jihe Li
- Department of Medicine, Division of Cardiology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
- Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Biomedical Research Building, Room 818, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Keyvan Yousefi
- Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Biomedical Research Building, Room 818, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Wen Ding
- Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Biomedical Research Building, Room 818, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Department of Molecular and Cellular Pharmacology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Jayanti Singh
- Department of Medicine, Division of Cardiology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
- Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Biomedical Research Building, Room 818, 1501 NW 10th Avenue, Miami, FL 33136, USA
| | - Lina A. Shehadeh
- Department of Medicine, Division of Cardiology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
- Interdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Biomedical Research Building, Room 818, 1501 NW 10th Avenue, Miami, FL 33136, USA
- Vascular Biology Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
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18
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Hassan EM, Willmore WG, DeRosa MC. Aptamers: Promising Tools for the Detection of Circulating Tumor Cells. Nucleic Acid Ther 2016; 26:335-347. [PMID: 27736306 DOI: 10.1089/nat.2016.0632] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Circulating tumor cells (CTCs) are cells that shed from a primary tumor and freely circulate in the blood, retaining the ability to initiate metastasis and form a secondary tumor in distant organs in the body. CTCs reflect the molecular profile of the primary tumor, therefore studying CTCs can allow for an understanding of the mechanism of metastasis, and an opportunity to monitor the prognosis of cancer. Unfortunately, the detection of CTCs is a considerable challenge due to their low abundance in the bloodstream and the lack of consistent markers present to recognize these cells. The aim of this review is to summarize some of the aptamer-based affinity methods for the detection of CTCs. The basic biological concept of how metastasis occurs and the role of CTCs in this process are presented. Some methods of CTC detection employing antibodies or peptides are mentioned here for comparison. The review of present literature suggests that aptamers are emerging as competitive technology in the detection of CTCs, especially due to their unique properties, but there still remain several challenges to be met, including the need to improve the throughput and sensitivity of such methods.
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Affiliation(s)
- Eman M Hassan
- 1 Institut National de la Recherche Scientifique-Energie, Materiaux Telecommunication , Quebec, Canada .,2 Department of Chemistry, Carleton University , Ottawa, Canada
| | | | - Maria C DeRosa
- 2 Department of Chemistry, Carleton University , Ottawa, Canada .,3 Institute of Biochemistry, Carleton University , Ottawa, Canada
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19
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Zhou G, Wilson G, Hebbard L, Duan W, Liddle C, George J, Qiao L. Aptamers: A promising chemical antibody for cancer therapy. Oncotarget 2016; 7:13446-63. [PMID: 26863567 PMCID: PMC4924653 DOI: 10.18632/oncotarget.7178] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Accepted: 01/24/2016] [Indexed: 12/20/2022] Open
Abstract
Aptamers, also known as chemical antibodies, are single-stranded nucleic acid oligonucleotides which bind to their targets with high specificity and affinity. They are typically selected by repetitive in vitro process termed systematic evolution of ligands by exponential enrichment (SELEX). Owing to their excellent properties compared to conventional antibodies, notably their smaller physical size and lower immunogenicity and toxicity, aptamers have recently emerged as a new class of agents to deliver therapeutic drugs to cancer cells by targeting specific cancer-associated hallmarks. Aptamers can also be structurally modified to make them more flexible in order to conjugate other agents such as nano-materials and therapeutic RNA agents, thus extending their applications for cancer therapy. This review presents the current knowledge on the practical applications of aptamers in the treatment of a variety of cancers.
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Affiliation(s)
- Gang Zhou
- Storr Liver Centre, Westmead Millennium Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW, Australia
| | - George Wilson
- Storr Liver Centre, Westmead Millennium Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW, Australia
| | - Lionel Hebbard
- Discipline of Molecular and Cell Biology, James Cook University, Townsville, QLD, Australia
| | - Wei Duan
- School of Medicine, Deakin University, Waurn Ponds, VIC, Australia
| | - Christopher Liddle
- Storr Liver Centre, Westmead Millennium Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW, Australia
| | - Jacob George
- Storr Liver Centre, Westmead Millennium Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW, Australia
| | - Liang Qiao
- Storr Liver Centre, Westmead Millennium Institute for Medical Research, University of Sydney and Westmead Hospital, Westmead, NSW, Australia
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20
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Shahdordizadeh M, Yazdian-Robati R, Ramezani M, Abnous K, Taghdisi SM. Aptamer application in targeted delivery systems for diagnosis and treatment of breast cancer. J Mater Chem B 2016; 4:7766-7778. [DOI: 10.1039/c6tb02564a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this review, we present the recent progress of aptamer application in targeted delivery systems for imaging and treatment of breast cancer.
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Affiliation(s)
- Mahin Shahdordizadeh
- Department of Pharmaceutical Biotechnology
- School of Pharmacy
- Mashhad University of Medical Sciences
- Mashhad
- Iran
| | - Rezvan Yazdian-Robati
- Department of Pharmaceutical Biotechnology
- School of Pharmacy
- Mashhad University of Medical Sciences
- Mashhad
- Iran
| | - Mohammad Ramezani
- Nanotechnology Research Center
- Mashhad University of Medical Sciences
- Mashhad
- Iran
| | - Khalil Abnous
- Pharmaceutical Research Center
- Mashhad University of Medical Sciences
- Mashhad
- Iran
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21
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Ma H, Liu J, Ali MM, Mahmood MAI, Labanieh L, Lu M, Iqbal SM, Zhang Q, Zhao W, Wan Y. Nucleic acid aptamers in cancer research, diagnosis and therapy. Chem Soc Rev 2015; 44:1240-56. [PMID: 25561050 DOI: 10.1039/c4cs00357h] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aptamers are single-stranded DNA or RNA oligomers, identified from a random sequence pool, with the ability to form unique and versatile tertiary structures that bind to cognate molecules with superior specificity. Their small size, excellent chemical stability and low immunogenicity enable them to rival antibodies in cancer imaging and therapy applications. Their facile chemical synthesis, versatility in structural design and engineering, and the ability for site-specific modifications with functional moieties make aptamers excellent recognition motifs for cancer biomarker discovery and detection. Moreover, aptamers can be selected or engineered to regulate cancer protein functions, as well as to guide anti-cancer drug design or screening. This review summarizes their applications in cancer, including cancer biomarker discovery and detection, cancer imaging, cancer therapy, and anti-cancer drug discovery. Although relevant applications are relatively new, the significant progress achieved has demonstrated that aptamers can be promising players in cancer research.
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Affiliation(s)
- Haitao Ma
- The Department of Cardiothoracic Surgery, The First Affiliated Hospital of Soochow University, Soochow University, Suzhou, Jiangsu 215006, China
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22
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Coombes JD, Choi SS, Swiderska-Syn M, Manka P, Reid DT, Palma E, Briones-Orta MA, Xie G, Younis R, Kitamura N, Della Peruta M, Bitencourt S, Dollé L, Oo YH, Mi Z, Kuo PC, Williams R, Chokshi S, Canbay A, Claridge LC, Eksteen B, Diehl AM, Syn WK. Osteopontin is a proximal effector of leptin-mediated non-alcoholic steatohepatitis (NASH) fibrosis. Biochim Biophys Acta Mol Basis Dis 2015; 1862:135-44. [PMID: 26529285 DOI: 10.1016/j.bbadis.2015.10.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/20/2015] [Accepted: 10/29/2015] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Liver fibrosis develops when hepatic stellate cells (HSC) are activated into collagen-producing myofibroblasts. In non-alcoholic steatohepatitis (NASH), the adipokine leptin is upregulated, and promotes liver fibrosis by directly activating HSC via the hedgehog pathway. We reported that hedgehog-regulated osteopontin (OPN) plays a key role in promoting liver fibrosis. Herein, we evaluated if OPN mediates leptin-profibrogenic effects in NASH. METHODS Leptin-deficient (ob/ob) and wild-type (WT) mice were fed control or methionine-choline deficient (MCD) diet. Liver tissues were assessed by Sirius-red, OPN and αSMA IHC, and qRT-PCR for fibrogenic genes. In vitro, HSC with stable OPN (or control) knockdown were treated with recombinant (r)leptin and OPN-neutralizing or sham-aptamers. HSC response to OPN loss was assessed by wound healing assay. OPN-aptamers were also added to precision-cut liver slices (PCLS), and administered to MCD-fed WT (leptin-intact) mice to determine if OPN neutralization abrogated fibrogenesis. RESULTS MCD-fed WT mice developed NASH-fibrosis, upregulated OPN, and accumulated αSMA+ cells. Conversely, MCD-fed ob/ob mice developed less fibrosis and accumulated fewer αSMA+ and OPN+ cells. In vitro, leptin-treated HSC upregulated OPN, αSMA, collagen 1α1 and TGFβ mRNA by nearly 3-fold, but this effect was blunted by OPN loss. Inhibition of PI3K and transduction of dominant negative-Akt abrogated leptin-mediated OPN induction, while constitutive active-Akt upregulated OPN. Finally, OPN neutralization reduced leptin-mediated fibrogenesis in both PCLS and MCD-fed mice. CONCLUSION OPN overexpression in NASH enhances leptin-mediated fibrogenesis via PI3K/Akt. OPN neutralization significantly reduces NASH fibrosis, reinforcing the potential utility of targeting OPN in the treatment of patients with advanced NASH.
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Affiliation(s)
- Jason D Coombes
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK; Division of Transplantation Immunology and Mucosal Biology, King's College London, UK
| | - Steve S Choi
- Division of Gastroenterology, Department of Medicine, Duke University, NC, USA; Section of Gastroenterology, Department of Medicine, Durham Veteran Affairs Medical Center, Durham, NC, USA
| | | | - Paul Manka
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK; Department of Gastroenterology and Hepatology, Essen University Hospital, Essen, Germany
| | - Danielle T Reid
- Snyder Institute for Chronic Diseases, Health Research and Innovation Centre (HRIC), University of Calgary, Canada
| | - Elena Palma
- Division of Transplantation Immunology and Mucosal Biology, King's College London, UK; Viral Hepatitis and Alcohol Research Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Marco A Briones-Orta
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK; Division of Transplantation Immunology and Mucosal Biology, King's College London, UK
| | - Guanhua Xie
- Division of Gastroenterology, Department of Medicine, Duke University, NC, USA
| | - Rasha Younis
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Naoto Kitamura
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Marco Della Peruta
- Viral Hepatitis and Alcohol Research Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Shanna Bitencourt
- Liver Cell Biology Lab (LIVR), Department of Cell Biology (CYTO), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Laurent Dollé
- Liver Cell Biology Lab (LIVR), Department of Cell Biology (CYTO), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ye Htun Oo
- Centre for Liver Research and NIHR Birmingham Biomedical Research Unit, University of Birmingham, Birmingham, UK
| | - Zhiyong Mi
- Department of Surgery, Loyola University, Chicago, USA
| | - Paul C Kuo
- Department of Surgery, Loyola University, Chicago, USA
| | - Roger Williams
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK; Division of Transplantation Immunology and Mucosal Biology, King's College London, UK
| | - Shilpa Chokshi
- Division of Transplantation Immunology and Mucosal Biology, King's College London, UK; Viral Hepatitis and Alcohol Research Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Ali Canbay
- Department of Gastroenterology and Hepatology, Essen University Hospital, Essen, Germany
| | | | - Bertus Eksteen
- Snyder Institute for Chronic Diseases, Health Research and Innovation Centre (HRIC), University of Calgary, Canada
| | - Anna Mae Diehl
- Division of Gastroenterology, Department of Medicine, Duke University, NC, USA
| | - Wing-Kin Syn
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK; Division of Transplantation Immunology and Mucosal Biology, King's College London, UK; Department of Surgery, Loyola University, Chicago, USA; Liver Unit, Barts Health NHS Trust, London, UK; Department of Physiology, University of the Basque Country, Bilbao, Spain.
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23
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Lee CH, Lee SH, Kim JH, Noh YH, Noh GJ, Lee SW. Pharmacokinetics of a Cholesterol-conjugated Aptamer Against the Hepatitis C Virus (HCV) NS5B Protein. MOLECULAR THERAPY. NUCLEIC ACIDS 2015; 4:e254. [PMID: 26440598 PMCID: PMC4881758 DOI: 10.1038/mtna.2015.30] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/25/2015] [Indexed: 02/07/2023]
Abstract
Hepatitis C virus (HCV) is the major cause of progressive liver disease such as chronic hepatitis, cirrhosis, and hepatocellular carcinoma. Previously, we reported that a 29 nucleotide-long 2'-F pyrimidine modified RNA aptamer against the HCV nonstructural protein 5B efficiently inhibited HCV replication and suppressed HCV infectious virus particle formation in a cell culture system. In this study, we modified this aptamer through conjugation of cholesterol for in vivo availability. This cholesterol-conjugated aptamer (chol-aptamer) efficiently entered the cell and inhibited HCV RNA replication, without any alteration in gene expression profiling including innate immune response-related genes. Moreover, systemic administration of the chol-aptamer was well tolerated without any abnormalities in mice. To evaluate the pharmacokinetics of the chol-aptamer in vivo, dose proportionality, bioavailability, and pharmacokinetic parameters were evaluated by noncompartmental analyses in normal BALB/c mice. Population analysis was performed using nonlinear mixed effects modeling. Moreover, the pharmacokinetics of two different routes (intravenous, IV, versus intraperitoneal, IP) were compared. Cholesterol conjugation showed dose proportionality, extended the time that the aptamer was in the plasma, and enhanced aptamer exposure to the body. Noticeably, the IV route was more suitable than the IP route due to the chol-aptamer remaining in the plasma for a longer period of time.
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Affiliation(s)
- Chang Ho Lee
- Department of Molecular Biology, Institute of Nanosensor and Biotechnology, and Research Institute of Advanced Omics, Dankook University, Yongin, Korea
| | - Soo-Han Lee
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - Ji Hyun Kim
- Department of Molecular Biology, Institute of Nanosensor and Biotechnology, and Research Institute of Advanced Omics, Dankook University, Yongin, Korea
| | - Yook-Hwan Noh
- Department of Bioengineering and Therapeutic Sciences, School of Pharmacy, University of California, San Francisco, California, USA
| | - Gyu-Jeong Noh
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.,Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seong-Wook Lee
- Department of Molecular Biology, Institute of Nanosensor and Biotechnology, and Research Institute of Advanced Omics, Dankook University, Yongin, Korea
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24
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Coombes J, Swiderska-Syn M, Dollé L, Reid D, Eksteen B, Claridge L, Briones-Orta MA, Shetty S, Oo YH, Riva A, Chokshi S, Papa S, Mi Z, Kuo PC, Williams R, Canbay A, Adams DH, Diehl AM, van Grunsven LA, Choi SS, Syn WK. Osteopontin neutralisation abrogates the liver progenitor cell response and fibrogenesis in mice. Gut 2015; 64:1120-31. [PMID: 24902765 PMCID: PMC4487727 DOI: 10.1136/gutjnl-2013-306484] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 05/22/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Chronic liver injury triggers a progenitor cell repair response, and liver fibrosis occurs when repair becomes deregulated. Previously, we reported that reactivation of the hedgehog pathway promotes fibrogenic liver repair. Osteopontin (OPN) is a hedgehog-target, and a cytokine that is highly upregulated in fibrotic tissues, and regulates stem-cell fate. Thus, we hypothesised that OPN may modulate liver progenitor cell response, and thereby, modulate fibrotic outcomes. We further evaluated the impact of OPN-neutralisation on murine liver fibrosis. METHODS Liver progenitors (603B and bipotential mouse oval liver) were treated with OPN-neutralising aptamers in the presence or absence of transforming growth factor (TGF)-β, to determine if (and how) OPN modulates liver progenitor function. Effects of OPN-neutralisation (using OPN-aptamers or OPN-neutralising antibodies) on liver progenitor cell response and fibrogenesis were assessed in three models of liver fibrosis (carbon tetrachloride, methionine-choline deficient diet, 3,5,-diethoxycarbonyl-1,4-dihydrocollidine diet) by quantitative real time (qRT) PCR, Sirius-Red staining, hydroxyproline assay, and semiquantitative double-immunohistochemistry. Finally, OPN expression and liver progenitor response were corroborated in liver tissues obtained from patients with chronic liver disease. RESULTS OPN is overexpressed by liver progenitors in humans and mice. In cultured progenitors, OPN enhances viability and wound healing by modulating TGF-β signalling. In vivo, OPN-neutralisation attenuates the liver progenitor cell response, reverses epithelial-mesenchymal-transition in Sox9+ cells, and abrogates liver fibrogenesis. CONCLUSIONS OPN upregulation during liver injury is a conserved repair response, and influences liver progenitor cell function. OPN-neutralisation abrogates the liver progenitor cell response and fibrogenesis in mouse models of liver fibrosis.
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Affiliation(s)
- J Coombes
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - M Swiderska-Syn
- Division of Gastroenterology, Department of Medicine, Duke University, NC, USA
| | - L Dollé
- Liver Cell Biology Lab (LIVR), Department of Cell Biology (CYTO), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - D Reid
- Snyder Institute for Chronic Diseases, Health Research and Innovation Centre (HRIC), University of Calgary, Canada
| | - B Eksteen
- Snyder Institute for Chronic Diseases, Health Research and Innovation Centre (HRIC), University of Calgary, Canada
| | - L Claridge
- Centre for Liver Research, NIHR Institute for Biomedical Research, University of Birmingham, UK
| | - MA Briones-Orta
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - S Shetty
- Centre for Liver Research, NIHR Institute for Biomedical Research, University of Birmingham, UK
| | - YH Oo
- Centre for Liver Research, NIHR Institute for Biomedical Research, University of Birmingham, UK
| | - A Riva
- Viral Hepatitis Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - S Chokshi
- Viral Hepatitis Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - S Papa
- Cell Signaling Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Z Mi
- Department of Surgery, Loyola University, Chicago, USA
| | - PC Kuo
- Department of Surgery, Loyola University, Chicago, USA
| | - R Williams
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - A Canbay
- Department of Gastroenterology and Hepatology, Essen University Hospital, Essen, Germany
| | - DH Adams
- Centre for Liver Research, NIHR Institute for Biomedical Research, University of Birmingham, UK
| | - AM Diehl
- Division of Gastroenterology, Department of Medicine, Duke University, NC, USA
| | - LA van Grunsven
- Liver Cell Biology Lab (LIVR), Department of Cell Biology (CYTO), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - SS Choi
- Division of Gastroenterology, Department of Medicine, Duke University, NC, USA,Section of Gastroenterology, Department of Medicine, Durham Veteran Affairs Medical Center, Durham, NC, USA
| | - WK Syn
- Regeneration and Repair Group, The Institute of Hepatology, Foundation for Liver Research, London, UK,Centre for Liver Research, NIHR Institute for Biomedical Research, University of Birmingham, UK,Department of Hepatology, Barts Health NHS Trust, London, UK,Senior and Corresponding Author: Dr Wing-Kin Syn, Head of Liver Regeneration and Repair, The Institute of Hepatology, Foundation for Liver Research, London WC1E 6HX, Tel: 44-20272559837,
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25
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Ortiz-Martínez F, Sanmartín E, Pomares-Navarro E, Pérez-Balaguer A, Andrés L, Sánchez-Payá J, Aranda FI, Lerma E, Peiró G. Osteopontin Regulates VEGFA and ICAM-1 mRNA Expression in Breast Carcinoma. Am J Clin Pathol 2015; 143:812-22. [PMID: 25972323 DOI: 10.1309/ajcp6f2vndamsula] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVES To analyze the regulatory role of osteopontin on biomarkers associated with cell survival, invasiveness, and angiogenesis mechanisms in a clinical series and breast cancer cell lines. METHODS We analyzed by quantitative real-time polymerase chain reaction the messenger RNA (mRNA) expression of osteopontin, Bcl2, intercellular adhesion molecule 1 (ICAM-1), and vascular endothelial growth factor A (VEGFA) in several breast cancer cell lines and in 148 breast carcinomas classified into intrinsic subtypes. RESULTS We found coexpression of osteopontin, Bcl2, ICAM-1, and VEGFA in triple-negative MDA-MB-468 and MDA-MB-231 cell lines. Furthermore, osteopontin silencing by small interfering RNA inhibited ICAM-1 and VEGFA expression and cell proliferation in MDA-MB-468 cells. In breast cancer specimens, we found a positive correlation between osteopontin, ICAM-1, and VEGFA mRNA expression, especially in triple-negative/basal-like tumors. Among patients with osteopontin-overexpressing tumors, VEGFA remained an independent prognostic indicator for recurrence (hazard ratio, 2.95; 95% confidence interval [CI], 1.48-5.87; P = .002) and death (hazard ratio, 3.25; 95% CI, 1.48-7.11; P = .003) (multivariate analysis, Cox regression). CONCLUSIONS Our results support that osteopontin regulates ICAM-1 and VEGFA expression mainly in triple-negative/basal-like breast carcinomas, suggesting a relevant role in the pathogenesis and tumor progression of this molecular subtype. Moreover, VEGFA mRNA levels showed an independent prognostic value in patients with breast cancer.
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Affiliation(s)
| | - Elena Sanmartín
- Research Unit, University General Hospital of Alicante, Alicante, Spain
| | | | | | - Leire Andrés
- Pathology Department, Hospital de Cruces, Barakaldo, Spain
| | - José Sánchez-Payá
- Epidemiology Department, University General Hospital of Alicante, Alicante, Spain
| | - Francisco I. Aranda
- Pathology Department, University General Hospital of Alicante, Alicante, Spain
| | - Enrique Lerma
- Pathology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Gloria Peiró
- Research Unit, University General Hospital of Alicante, Alicante, Spain
- Pathology Department, University General Hospital of Alicante, Alicante, Spain
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26
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Meirinho SG, Dias LG, Peres AM, Rodrigues LR. Development of an electrochemical RNA-aptasensor to detect human osteopontin. Biosens Bioelectron 2015; 71:332-341. [PMID: 25930003 DOI: 10.1016/j.bios.2015.04.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 03/30/2015] [Accepted: 04/17/2015] [Indexed: 12/22/2022]
Abstract
Electrochemical aptasensors may be used to detect protein biomarkers related to tumor activity. Osteopontin (OPN), a protein present in several body fluids, has been suggested as a potential biomarker since its overexpression seems to be associated with breast cancer progression and metastasis. In this work, a simple and label-free voltammetric aptasensor for the detection of OPN, using an RNA aptamer previously reported to have affinity for human OPN as the molecular recognition element, and the ferro/ferricyanide solution as a redox probe, was developed. The RNA aptamer was synthetized and immobilized in a working microelectrode gold surface (diameter of 0.8mm) of a screen-printed strip with a silver pseudo-reference electrode and a gold counter electrode. The electrochemical behavior of the electrode surface after each preparation step of the aptasensor was studied using cyclic voltammetry and square wave voltammetry. The resulting voltammetric aptasensor was used to detect OPN in standard solutions. Cyclic voltammetry results showed that the aptasensor has reasonable detection and quantification limits (3.7 ± 0.6 nM and 11 ± 2 nM, respectively). Indeed, the detection limit falls within the osteopontin levels reported in the literature for patients with metastatic breast cancer. Moreover, the aptasensor is able to selectively detect the target protein in the presence of other interfering proteins, except for thrombin. Considering the overall results, a possible application of the aptasensor for cancer prognosis may be foreseen in a near future.
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Affiliation(s)
- Sofia G Meirinho
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Luís G Dias
- ESA, Instituto Politécnico de Bragança, Campus Santa Apolónia, Apartado 1172, 5301-855 Bragança, Portugal; CQ-VR, Centro de Química - Vila Real, University of Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801 Vila Real, Portugal
| | - António M Peres
- LSRE-Laboratory of Separation and Reaction Enginerring-Associate Laboratory LSRE/LCM, ESA, Instituto Politécnico de Bragança, Campus Santa Apolónia, Apartado 1172, 5301-855 Bragança, Portugal
| | - Lígia R Rodrigues
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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27
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Kong HY, Byun J. Screening and characterization of a novel RNA aptamer that specifically binds to human prostatic acid phosphatase and human prostate cancer cells. Mol Cells 2015; 38:171-9. [PMID: 25591398 PMCID: PMC4332034 DOI: 10.14348/molcells.2015.2272] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 11/06/2014] [Accepted: 11/10/2014] [Indexed: 12/23/2022] Open
Abstract
Prostatic acid phosphatase (PAP) expression increases proportionally with prostate cancer progression, making it useful in prognosticating intermediate to high-risk prostate cancers. A novel ligand that can specifically bind to PAP would be very helpful for guiding prostate cancer therapy. RNA aptamers bind to target molecules with high specificity and have key advantages such as low immunogenicity and easy synthesis. Here, human PAP-specific aptamers were screened from a 2'-fluoropyrimidine (FY)-modified RNA library by SELEX. The candidate aptamer families were identified within six rounds followed by analysis of their sequences and PAP-specific binding. A gel shift assay was used to identify PAP binding aptamers and the 6N aptamer specifically bound to PAP with a Kd value of 118 nM. RT-PCR and fluorescence labeling analyses revealed that the 6N aptamer bound to PAP-positive mammalian cells, such as PC-3 and LNCaP. IMR-90 negative control cells did not bind the 6N aptamer. Systematic minimization analyses revealed that 50 nucleotide sequences and their two hairpin structures in the 6N 2'-FY RNA aptamer were equally important for PAP binding. Renewed interest in PAP combined with the versatility of RNA aptamers, including conjugation of anti-cancer drugs and nano-imaging probes, could open up a new route for early theragnosis of prostate cancer.
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Affiliation(s)
- Hoon Young Kong
- Department of Molecular Biology, Dankook University, Yongin 448-701, Korea
- Institute of Nanosensor and Biotechnology, Dankook University, Yongin 448-701, Korea
| | - Jonghoe Byun
- Department of Molecular Biology, Dankook University, Yongin 448-701, Korea
- Institute of Nanosensor and Biotechnology, Dankook University, Yongin 448-701, Korea
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28
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Shevde LA, Samant RS. Role of osteopontin in the pathophysiology of cancer. Matrix Biol 2014; 37:131-41. [PMID: 24657887 PMCID: PMC5916777 DOI: 10.1016/j.matbio.2014.03.001] [Citation(s) in RCA: 191] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/10/2014] [Accepted: 03/10/2014] [Indexed: 12/12/2022]
Abstract
Osteopontin (OPN) is a multifunctional cytokine that impacts cell proliferation, survival, drug resistance, invasion, and stem like behavior. Due to its critical involvement in regulating cellular functions, its aberrant expression and/or splicing is functionally responsible for undesirable alterations in disease pathologies, specifically cancer. It is implicated in promoting invasive and metastatic progression of many carcinomas. Due to its autocrine and paracrine activities OPN has been shown to be a crucial mediator of cellular cross talk and an influential factor in the tumor microenvironment. OPN has been implicated as a prognostic and diagnostic marker for several cancer types. It has also been explored as a possible target for treatment. In this article we hope to provide a broad perspective on the importance of OPN in the pathophysiology of cancer.
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Affiliation(s)
- Lalita A Shevde
- Department of Pathology and Comprehensive Cancer Center, The University of Alabama at Birmingham, United States.
| | - Rajeev S Samant
- Department of Pathology and Comprehensive Cancer Center, The University of Alabama at Birmingham, United States.
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29
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Bandopadhyay M, Bulbule A, Butti R, Chakraborty G, Ghorpade P, Ghosh P, Gorain M, Kale S, Kumar D, Kumar S, Totakura KVS, Roy G, Sharma P, Shetti D, Soundararajan G, Thorat D, Tomar D, Nalukurthi R, Raja R, Mishra R, Yadav AS, Kundu GC. Osteopontin as a therapeutic target for cancer. Expert Opin Ther Targets 2014; 18:883-95. [DOI: 10.1517/14728222.2014.925447] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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30
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Osteopontin is up-regulated in chronic hepatitis C and is associated with cellular permissiveness for hepatitis C virus replication. Clin Sci (Lond) 2014; 126:845-55. [PMID: 24438228 DOI: 10.1042/cs20130473] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OPN (osteopontin)) is a Hh (Hedgehog)-regulated cytokine that is up-regulated during chronic liver injury and directly promotes fibrosis. We have reported that Hh signalling enhances viral permissiveness and replication in HCV (hepatitis C virus)-infected cells. Hence we hypothesized that OPN directly promotes HCV replication, and that targeting OPN could be beneficial in HCV. In the present study, we compared the expression of OPN mRNA and protein in HCV (JFH1)-infected Huh7 and Huh7.5 cells, and evaluated whether modulating OPN levels using exogenous OPN ligands (up-regulate OPN) or OPN-specific RNA-aptamers (neutralize OPN) leads to changes in HCV expression. Sera and livers from patients with chronic HCV were analysed to determine whether OPN levels were associated with disease severity or response to therapy. Compared with Huh7 cells, Huh7.5 cells support higher levels of HCV replication (15-fold) and expressed significantly more OPN mRNA (30-fold) and protein. Treating Huh7 cells with OPN ligands led to a dose-related increase in HCV (15-fold) and OPN (8-fold) mRNA. Conversely, treating Huh7.5 cells with OPN-specific RNA aptamers inhibited HCV RNA and protein by >50% and repressed OPN mRNA to basal levels. Liver OPN expression was significantly higher (3-fold) in patients with advanced fibrosis. Serum OPN positively correlated with fibrosis-stage (P=0.009), but negatively correlated with ETBCR (end-of-treatment biochemical response), ETVR (end-of-treatment virological response), SBCR (sustained biochemical response) and SVR (sustained virological response) (P=0.007). The OPN fibrosis score (serum OPN and presence of fibrosis ≥F2) may be a predictor of SVR. In conclusion, OPN is up-regulated in the liver and serum of patients with chronic hepatitis C, and supports increased viral replication. OPN neutralization may be a novel therapeutic strategy in chronic hepatitis C.
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31
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Kong HY, Byun J. Nucleic Acid aptamers: new methods for selection, stabilization, and application in biomedical science. Biomol Ther (Seoul) 2014; 21:423-34. [PMID: 24404332 PMCID: PMC3879913 DOI: 10.4062/biomolther.2013.085] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 11/05/2013] [Accepted: 11/05/2013] [Indexed: 12/19/2022] Open
Abstract
The adoption of oligonucleotide aptamer is well on the rise, serving an ever increasing demand for versatility in biomedical field. Through the SELEX (Systematic Evolution of Ligands by EXponential enrichment), aptamer that can bind to specific target with high affinity and specificity can be obtained. Aptamers are single-stranded nucleic acid molecules that can fold into complex threedimensional structures, forming binding pockets and clefts for the specific recognition and tight binding of any given molecular target. Recently, aptamers have attracted much attention because they not only have all of the advantages of antibodies, but also have unique merits such as thermal stability, ease of synthesis, reversibility, and little immunogenicity. The advent of novel technologies is revolutionizing aptamer applications. Aptamers can be easily modified by various chemical reactions to introduce functional groups and/or nucleotide extensions. They can also be conjugated to therapeutic molecules such as drugs, drug containing carriers, toxins, or photosensitizers. Here, we discuss new SELEX strategies and stabilization methods as well as applications in drug delivery and molecular imaging.
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Affiliation(s)
- Hoon Young Kong
- Department of Molecular Biology, Institute of Nanosensor and Biotechnology, Dankook University, Yongin 448-701, Republic of Korea
| | - Jonghoe Byun
- Department of Molecular Biology, Institute of Nanosensor and Biotechnology, Dankook University, Yongin 448-701, Republic of Korea
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32
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Li NY, Weber CE, Wai PY, Cuevas BD, Zhang J, Kuo PC, Mi Z. An MAPK-dependent pathway induces epithelial-mesenchymal transition via Twist activation in human breast cancer cell lines. Surgery 2013; 154:404-10. [PMID: 23889968 DOI: 10.1016/j.surg.2013.05.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 05/10/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Twist is an epithelial-mesenchymal transition (EMT) transcription factor that instigates cell invasion. Our research has shown that osteopontin (OPN) regulates the EMT factor Twist. The underlying signaling pathway is unknown. We hypothesized that OPN activates Twist to induce EMT in human breast cancer. METHODS Potential kinases for Twist were identified using NetPhosK. Inhibitors of MEK1/2, JNK, p38 MAPK, and PI3K were applied to human breast cancer cells MDA-MB231 (OPN high). After 24 h, Twist was immunoprecipitated and incubated with phosphoserine. Expression of the Twist target protein, Bmi-1, was determined following 24-h osteopontin aptamer (APT) treatment; mutant aptamer (MuAPT) was used as the control. Scratch-wound assay was imaged 12, 24, and 48 h after APT and MuAPT treatment. RESULTS MEK1/2 inhibition caused ≈ twofold decrease in Twist serine phosphorylation (P < .05). APT blockade of OPN in MB231 decreased Bmi1 protein twofold (P < .05). Aptamer-treated cells were significantly decreased in cell migration and wound closure in the scratch wound-assay (P < .001). CONCLUSION We demonstrate that OPN extracellular binding to MB231 activates an autocrine MAPK intracellular signaling pathway resulting in Twist activation and promoting Bmi1 expression to further EMT initiation and cellular migration. Our results elucidate a previously undescribed role for OPN as a prime regulator of EMT in human breast cancer cells.
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Affiliation(s)
- Neill Y Li
- Department of Surgery, Loyola University, Maywood, IL, USA
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33
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Liu K, Lin B, Lan X. Aptamers: a promising tool for cancer imaging, diagnosis, and therapy. J Cell Biochem 2013; 114:250-5. [PMID: 22949372 DOI: 10.1002/jcb.24373] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Accepted: 08/24/2012] [Indexed: 02/04/2023]
Abstract
Aptamers are a group of molecules, which can specifically bind, track, and inhibit target molecules, comprising DNA aptamers, RNA aptamers, and peptide aptamers. So far, there are much progress about developing novel aptamers and their expansile applications. This prospect systematically introduces the composition and technological evolution of aptamers, and then focuses on the application of aptamers in cancer diagnosis, imaging, and therapy. Following this, we discuss the potential to harness aptamers in discovering the biomarker of stem cells, which is favorable for us to study the normal developmental or abnormal pathological process of tissue and to deliver drugs into target cells or tissues in the future.
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Affiliation(s)
- KuanCan Liu
- Institute for Laboratory Medicine, Fuzhou General Hospital, PLA, Fuzhou, Fujian 350025, P.R. China
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34
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Li NY, Weber CE, Mi Z, Wai PY, Cuevas BD, Kuo PC. Osteopontin up-regulates critical epithelial-mesenchymal transition transcription factors to induce an aggressive breast cancer phenotype. J Am Coll Surg 2013; 217:17-26; discussion 26. [PMID: 23619316 DOI: 10.1016/j.jamcollsurg.2013.02.025] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 02/16/2013] [Accepted: 02/18/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND Tumor cells undergoing epithelial-mesenchymal transition (EMT) develop cellular properties leading to stroma invasion and intravasation. We have previously shown in a xenograft breast cancer model that blocking osteopontin (OPN), a secreted phosphoprotein, decreases EMT. This study examines OPN's role in EMT initiation through its regulation of EMT transcription factors (TFs) Snail, Slug, and Twist. OPN's role in Twist activation is examined through immunoprecipitation and Western blot. STUDY DESIGN MDA-MB-231 breast cancer cells secreting high levels of OPN were treated with OPN aptamer (APT) or mutant APT. Osteopontin APT binds to and inhibits extracellular OPN. Low-OPN-secreting breast cancer cells, MCF-7, were treated with OPN, OPN+APT, or OPN+mutant APT. Twist was isolated in MDA-MB-231 with immunoprecipitation. Phospho-serine antibody detected activated Twist in Western blot. Activation of Twist was confirmed by chromatin immunoprecipitation. RESULTS Analysis through quantitative polymerase chain reaction demonstrated APT inhibition of OPN in MDA-MB-231 cells caused a decrease in EMT-TF expression (MDA-MB-231 vs MDA-MB-231+APT: *Twist ΔΔCT: 1.0 vs 0.07; *Snail ΔΔCT: 1.0 vs 0.11; *Slug ΔΔCT: 1.0 vs 0.11; *p < 0.001). Mutant APT did not change EMT-TF expression (NS). Treatment of MCF-7 cells with OPN caused an increase in EMT-TF expression (MCF-7 vs MCF-7+OPN: Twist ΔΔCT: 1.0 vs 9.1; *Snail ΔΔCT: 1.0 vs 11.2; *Slug ΔΔCT: 1.0 vs 10.9; *p < 0.001). The EMT-TF expression in MCF-7 treated with OPN+APT did not differ significantly from MCF-7 alone. Phosphorylated Twist protein was reduced 2-fold with APT in MDA-MB-231 compared with MDA-MB-231 and MDA-MB-231+mutant APT. Twist phorphorylation induced binding to the promoter regions of Twist-regulated gene, B lymphoma Mo-MLV insertion region 1 homolog, a critical protein for EMT progression. CONCLUSIONS This study shows that OPN is critical in EMT initiation through activation of Twist via serine phosphorylation. These unique observations indicate that OPN APT can serve a clinical role as a novel therapeutic agent by diminishing breast cancer oncogenesis.
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Affiliation(s)
- Neill Y Li
- Department of Surgery, Loyola University, Maywood, IL 60153, USA
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Cox RF, Morgan MP. Microcalcifications in breast cancer: Lessons from physiological mineralization. Bone 2013; 53:437-50. [PMID: 23334083 DOI: 10.1016/j.bone.2013.01.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 01/07/2013] [Accepted: 01/08/2013] [Indexed: 02/02/2023]
Abstract
Mammographic mammary microcalcifications are routinely used for the early detection of breast cancer, however the mechanisms by which they form remain unclear. Two species of mammary microcalcifications have been identified; calcium oxalate and hydroxyapatite. Calcium oxalate is mostly associated with benign lesions of the breast, whereas hydroxyapatite is associated with both benign and malignant tumors. The way in which hydroxyapatite forms within mammary tissue remains largely unexplored, however lessons can be learned from the process of physiological mineralization. Normal physiological mineralization by osteoblasts results in hydroxyapatite deposition in bone. This review brings together existing knowledge from the field of physiological mineralization and juxtaposes it with our current understanding of the genesis of mammary microcalcifications. As an increasing number of breast cancers are being detected in their non-palpable stage through mammographic microcalcifications, it is important that future studies investigate the underlying mechanisms of their formation in order to fully understand the significance of this unique early marker of breast cancer.
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Affiliation(s)
- Rachel F Cox
- Molecular and Cellular Therapeutics, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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Cao DX, Li ZJ, Jiang XO, Lum YL, Khin E, Lee NP, Wu GH, Luk JM. Osteopontin as potential biomarker and therapeutic target in gastric and liver cancers. World J Gastroenterol 2012; 18:3923-30. [PMID: 22912540 PMCID: PMC3419986 DOI: 10.3748/wjg.v18.i30.3923] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Revised: 05/11/2012] [Accepted: 05/26/2012] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer and liver cancer are among the most common malignancies and the leading causes of death worldwide, due to late detection and high recurrence rates. Today, these cancers have a heavy socioeconomic burden, for which a full understanding of their pathophysiological features is warranted to search for promising biomarkers and therapeutic targets. Osteopontin (OPN) is overexpressed in most patients with gastric and liver cancers. Over the past decade, emerging evidence has revealed a correlation of OPN level and clinicopathological features and prognosis in gastric and liver cancers, indicating its potential as an independent prognostic indicator in such patients. Functional studies have verified the potential of OPN knockdown as a therapeutic approach in vitro and in vivo. Furthermore, OPN mediates multifaceted roles in the interaction between cancer cells and the tumor microenvironment, in which many details need further exploration. OPN signaling results in various functions, including prevention of apoptosis, modulation of angiogenesis, malfunction of tumor-associated macrophages, degradation of extracellular matrix, activation of phosphoinositide 3-kinase-Akt and nuclear factor-κB pathways, which lead to tumor formation and progression, particularly in gastric and liver cancers. This editorial aims to review recent findings on alteration in OPN expression and its clinicopathological associations with tumor progression, its potential as a therapeutic target, and putative mechanisms in gastric and liver cancers. Better understanding of the implications of OPN in tumorigenesis might facilitate development of therapeutic regimens to benefit patients with these deadly malignancies.
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