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Martins SA, Correia JDG. 99mTc(I)-Labeled His-Tagged Proteins: Impact in the Development of Novel Imaging Probes and in Drug Discovery. Chembiochem 2024; 25:e202400645. [PMID: 39158861 DOI: 10.1002/cbic.202400645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Accepted: 08/07/2024] [Indexed: 08/20/2024]
Abstract
Technetium-99 m (99mTc) remains the cornerstone of nuclear medicine for single photon emission computed tomography (SPECT) due to its widespread availability and chemical and physical features. Its multiple oxidation states allow for the design and production of radiopharmaceuticals with versatile properties, namely in terms of pharmacokinetic profile. 99mTc(V) is the most common oxidation state, but 99mTc(I) gained traction after the pioneering work of Alberto and colleagues, which resulted in the introduction of the organometallic core fac-[99mTc(CO)3(H2O)3]+. This core is readily available from [99mTcO4]- and displays three labile water molecules that can be easily swapped for ligands with different denticity and/or donor atoms in aqueous environment. This makes it possible to radiolabel small molecules as well as high molecular weight molecules, such as antibodies or other proteins, while assuring biological activity. Direct radiolabelling of those proteins with fac-[99mTc(CO)3]+ under mild conditions is accomplished through incorporation of a polyhistidine tag (His-tag), a commonly used tag for purification of recombinant proteins. This review aims to address the direct radiolabelling of His-tagged macromolecules with fac-[99mTc(CO)3]+ for development of molecular imaging agents and the impact of this technology in the discovery and development of imaging and/or therapeutic agents towards clinical application.
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Affiliation(s)
- Sofia A Martins
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, CTN, Estrada Nacional 10 (km 139,7), 2695-066, Bobadela LRS, Portugal
| | - João D G Correia
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, CTN, Estrada Nacional 10 (km 139,7), 2695-066, Bobadela LRS, Portugal
- Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, CTN, Estrada Nacional 10 (km 139,7), 2695-066, Bobadela LRS, Portugal
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2
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Tripathy RK, Pande AH. Molecular and functional insight into anti-EGFR nanobody: Theranostic implications for malignancies. Life Sci 2024; 345:122593. [PMID: 38554946 DOI: 10.1016/j.lfs.2024.122593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/27/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
Targeted therapy and imaging are the most popular techniques for the intervention and diagnosis of cancer. A potential therapeutic target for the treatment of cancer is the epidermal growth factor receptor (EGFR), primarily for glioblastoma, lung, and breast cancer. Over-production of ligand, transcriptional up-regulation due to autocrine/paracrine signalling, or point mutations at the genomic locus may contribute to the malfunction of EGFR in malignancies. This exploit makes use of EGFR, an established biomarker for cancer diagnostics and treatment. Despite considerable development in the last several decades in making EGFR inhibitors, they are still not free from limitations like toxicity and a short serum half-life. Nanobodies and antibodies share similar binding properties, but nanobodies have the additional advantage that they can bind to antigenic epitopes deep inside the target that conventional antibodies are unable to access. For targeted therapy, anti-EGFR nanobodies can be conjugated to various molecules such as drugs, peptides, toxins and photosensitizers. These nanobodies can be designed as novel immunoconjugates using the universal modular antibody-based platform technology (UniCAR). Furthermore, Anti-EGFR nanobodies can be expressed in neural stem cells and visualised by effective fluorescent and radioisotope labelling.
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Affiliation(s)
- Rajan K Tripathy
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, (Mohali) 160062, Punjab, India
| | - Abhay H Pande
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, (Mohali) 160062, Punjab, India.
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3
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Zhang X, Wang J, Tan Y, Chen C, Tang S, Zhao S, Qin Q, Huang H, Duan S. Nanobodies in cytokine‑mediated immunotherapy and immunoimaging (Review). Int J Mol Med 2024; 53:12. [PMID: 38063273 DOI: 10.3892/ijmm.2023.5336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Cytokines are the main regulators of innate and adaptive immunity, mediating communications between the cells of the immune system and regulating biological functions, including cell motility, differentiation, growth and apoptosis. Cytokines and cytokine receptors have been used in the treatment of tumors and autoimmune diseases, and to intervene in cytokine storms. Indeed, the use of monoclonal antibodies to block cytokine‑receptor interactions, as well as antibody‑cytokine fusion proteins has exhibited immense potential for the treatment of tumors and autoimmune diseases. Compared with these traditional types of antibodies, nanobodies not only maintain a high affinity and specificity, but also have the advantages of high thermal stability, a high capacity for chemical manipulation, low immunogenicity, good tissue permeability, rapid clearance and economic production. Thus, nanobodies have extensive potential for use in the diagnosis and treatment of cytokine‑related diseases. The present review summarizes the application of nanobodies in cytokine‑mediated immunotherapy and immunoimaging.
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Affiliation(s)
- Xiaochen Zhang
- Department of Medicine, Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Jin Wang
- Department of Medicine, Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Ying Tan
- Department of Medicine, Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Chaoting Chen
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Shuang Tang
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Shimei Zhao
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Qiuhong Qin
- Department of Medicine, Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Hansheng Huang
- Department of Medical Oncology, The Second Affiliated Hospital of Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
| | - Siliang Duan
- Department of Medicine, Guangxi University of Science and Technology, Guangxi Zhuang Autonomous Region 545005, P.R. China
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Zhang Q, Zhang N, Xiao H, Wang C, He L. Small Antibodies with Big Applications: Nanobody-Based Cancer Diagnostics and Therapeutics. Cancers (Basel) 2023; 15:5639. [PMID: 38067344 PMCID: PMC10705070 DOI: 10.3390/cancers15235639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 02/13/2025] Open
Abstract
Monoclonal antibodies (mAbs) have exhibited substantial potential as targeted therapeutics in cancer treatment due to their precise antigen-binding specificity. Despite their success in tumor-targeted therapies, their effectiveness is hindered by their large size and limited tissue permeability. Camelid-derived single-domain antibodies, also known as nanobodies, represent the smallest naturally occurring antibody fragments. Nanobodies offer distinct advantages over traditional mAbs, including their smaller size, high stability, lower manufacturing costs, and deeper tissue penetration capabilities. They have demonstrated significant roles as both diagnostic and therapeutic tools in cancer research and are also considered as the next generation of antibody drugs. In this review, our objective is to provide readers with insights into the development and various applications of nanobodies in the field of cancer treatment, along with an exploration of the challenges and strategies for their prospective clinical trials.
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Affiliation(s)
- Qian Zhang
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China; (Q.Z.); (C.W.)
| | - Nan Zhang
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou 511436, China;
| | - Han Xiao
- Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou 730030, China;
| | - Chen Wang
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China; (Q.Z.); (C.W.)
| | - Lian He
- Department of Pharmacology, Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China; (Q.Z.); (C.W.)
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5
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Aria H, Rezaei M. Immunogenic cell death inducer peptides: A new approach for cancer therapy, current status and future perspectives. Biomed Pharmacother 2023; 161:114503. [PMID: 36921539 DOI: 10.1016/j.biopha.2023.114503] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023] Open
Abstract
Immunogenic Cell Death (ICD) is a type of cell death that kills tumor cells by stimulating the adaptive immune response against other tumor cells. ICD depends on the endoplasmic reticulum (ER) stress and the secretion of Damage-Associated Molecular Patterns (DAMP) by the dying tumor cell. DAMPs recruit innate immune cells such as Dendritic Cells (DC), triggering a cancer-specific immune response such as cytotoxic T lymphocytes (CTLs) to eliminate remaining cancer cells. ICD is accompanied by several hallmarks in dying cells, such as surface translocation of ER chaperones, calreticulin (CALR), and extracellular secretion of DAMPs such as high mobility group protein B1 (HMGB1) and adenosine triphosphate (ATP). Therapeutic peptides can kill bacteria and tumor cells thus affecting the immune system. They have high specificity and affinity for their targets, small size, appropriate cell membrane penetration, short half-life, and simple production processes. Peptides are interesting agents for immunomodulation since they may overcome the limitations of other therapeutics. Thus, the development of peptides affecting the TME and active antitumoral immunity has been actively pursued. On the other hand, several peptides have been recently identified to trigger ICD and anti-cancer responses. In the present review, we review previous studies on peptide-induced ICD, their mechanism, their targets, and markers. They include anti-microbial peptides (AMPs), cationic or mitochondrial targeting, checkpoint inhibitors, antiapoptotic inhibitors, and "don't eat me" inhibitor peptides. Also, peptides will be investigated potentially inducing ICD that is divided into ER stressors, ATPase inhibitors, and anti-microbial peptides.
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Affiliation(s)
- Hamid Aria
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marzieh Rezaei
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Bridge T, Wegmann U, Crack JC, Orman K, Shaikh SA, Farndon W, Martins C, Saalbach G, Sachdeva A. Site-specific encoding of photoactivity and photoreactivity into antibody fragments. Nat Chem Biol 2023; 19:740-749. [PMID: 36797401 DOI: 10.1038/s41589-022-01251-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 12/21/2022] [Indexed: 02/18/2023]
Abstract
Design of biomolecules that perform two or more distinct functions in response to light remains challenging. Here, we have introduced concurrent photoactivity and photoreactivity into an epidermal growth factor receptor (EGFR)-targeting antibody fragment, 7D12. This was achieved by site-specific incorporation of photocaged tyrosine (pcY) for photoactivity and p-benzoyl-ʟ-phenylalanine (Bpa) for photoreactivity into 7D12. We identified a position for installing Bpa in 7D12 that has minimal effect on 7D12-EGFR binding affinity in the absence of light. Upon exposure to 365-nm light, this Bpa-containing 7D12 mutant forms a covalent bond with EGFR in an antigen-specific manner. We then developed a method for site-specific incorporation of pcY and Bpa at two distinct sites in 7D12. Finally, we demonstrated that in the absence of light, this pcY- and Bpa-containing mutant of 7D12 does not bind to EGFR, but irradiation with 365-nm light activates (1) specific binding and (2) covalent bond formation with EGFR.
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Affiliation(s)
- Thomas Bridge
- School of Chemistry, University of East Anglia, Norwich, UK
| | - Udo Wegmann
- School of Chemistry, University of East Anglia, Norwich, UK
| | - Jason C Crack
- School of Chemistry, University of East Anglia, Norwich, UK
| | - Kate Orman
- School of Chemistry, University of East Anglia, Norwich, UK
| | - Saher A Shaikh
- School of Chemistry, University of East Anglia, Norwich, UK
| | | | - Carlo Martins
- Proteomics Facility, The John Innes Centre, Norwich, UK
| | | | - Amit Sachdeva
- School of Chemistry, University of East Anglia, Norwich, UK.
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7
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Arnouk S, De Groof TW, Van Ginderachter JA. Imaging and therapeutic targeting of the tumor immune microenvironment with biologics. Adv Drug Deliv Rev 2022; 184:114239. [PMID: 35351469 DOI: 10.1016/j.addr.2022.114239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/14/2022] [Accepted: 03/23/2022] [Indexed: 11/01/2022]
Abstract
The important role of tumor microenvironmental elements in determining tumor progression and metastasis has been firmly established. In particular, the presence and activity profile of tumor-infiltrating immune cells may be associated with the outcome of the disease and may predict responsiveness to (immuno)therapy. Indeed, while some immune cell types, such as macrophages, support cancer cell outgrowth and mediate therapy resistance, the presence of activated CD8+ T cells is usually indicative of a better prognosis. It is therefore of the utmost interest to obtain a full picture of the immune infiltrate in tumors, either as a prognostic test, as a way to stratify patients to maximize therapeutic success, or as therapy follow-up. Hence, the non-invasive imaging of these cells is highly warranted, with biologics being prime candidates to achieve this goal.
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Near-Infrared Fluorescence Imaging of EGFR-Overexpressing Tumors in the Mouse Xenograft Model Using scFv-IRDye800CW and Cetuximab-IRDye800CW. Mol Imaging 2022; 2022:9589820. [PMID: 35517713 PMCID: PMC9042373 DOI: 10.1155/2022/9589820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 03/21/2022] [Indexed: 12/18/2022] Open
Abstract
EGFR (epidermal growth factor receptor) is overexpressed in a variety of human cancers (including squamous cell carcinoma of head and neck, colon cancer, and some breast cancers) and therefore is regarded as an ideal target for cancer therapy or imaging purposes. In the current study, we produced a scFv-based near-infrared probe (called cet.Hum.scFv-IRDye-800CW) and evaluated its ability in recognizing and imaging of EGFR-overexpressing tumors in a mouse model. Like the molecular probe consisting of its parental antibody (cetuximab, an FDA-approved monoclonal antibody) and IRD800CW, cet.Hum.scFv-IRDye-800CW was able to recognize EGFR-overexpressing tumors in mice. cet.Hum.scFv-IRDye-800CW was found to be superior to the cetuximab-based probe in imaging of mouse tumors. The tumor-to-background ratio and blood clearance rate were higher when cet.Hum.scFv-IRDye-800CW was used as an imaging probe.
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Shoari A, Tahmasebi M, Khodabakhsh F, Cohan RA, Oghalaie A, Behdani M. Angiogenic biomolecules specific nanobodies application in cancer imaging and therapy; review and updates. Int Immunopharmacol 2022; 105:108585. [DOI: 10.1016/j.intimp.2022.108585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 11/05/2022]
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10
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Barakat S, Berksöz M, Zahedimaram P, Piepoli S, Erman B. Nanobodies as molecular imaging probes. Free Radic Biol Med 2022; 182:260-275. [PMID: 35240292 DOI: 10.1016/j.freeradbiomed.2022.02.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/08/2022] [Accepted: 02/14/2022] [Indexed: 12/12/2022]
Abstract
Camelidae derived single-domain antibodies (sdAbs), commonly known as nanobodies (Nbs), are the smallest antibody fragments with full antigen-binding capacity. Owing to their desirable properties such as small size, high specificity, strong affinity, excellent stability, and modularity, nanobodies are on their way to overtake conventional antibodies in terms of popularity. To date, a broad range of nanobodies have been generated against different molecular targets with applications spanning basic research, diagnostics, and therapeutics. In the field of molecular imaging, nanobody-based probes have emerged as a powerful tool. Radioactive or fluorescently labeled nanobodies are now used to detect and track many targets in different biological systems using imaging techniques. In this review, we provide an overview of the use of nanobodies as molecular probes. Additionally, we discuss current techniques for the generation, conjugation, and intracellular delivery of nanobodies.
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Affiliation(s)
- Sarah Barakat
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey.
| | - Melike Berksöz
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey.
| | - Pegah Zahedimaram
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey.
| | - Sofia Piepoli
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Bogazici University, 34342, Bebek, Istanbul, Turkey.
| | - Batu Erman
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Bogazici University, 34342, Bebek, Istanbul, Turkey.
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Cytoplasmic Production of Nanobodies and Nanobody-Based Reagents by Co-Expression of Sulfhydryl Oxidase and DsbC Isomerase. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2446:145-157. [PMID: 35157272 DOI: 10.1007/978-1-0716-2075-5_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Nanobodies are stable molecules that can often fold correctly even in the absence of the disulfide bond(s) that stabilize their three-dimensional conformation. Nevertheless, some nanobodies require the formation of disulfide bonds, and therefore they are commonly expressed from vectors that promote their secretion into the oxidizing environment of the Escherichia coli periplasm. As an alternative, the bacterial cytoplasm can be an effective compartment for producing correctly folded nanobodies when sulfhydryl oxidase and disulfide-bond isomerase activities are co-expressed from a recombinant vector. The larger volume and wider chaperone/foldase availability of the cytoplasm enable the achievement of high yields of both nanobodies and nanobody-tag fusions, independently of their redox requirements. Among other examples, the protocol described here was used to successfully produce nanobody fusions with fluorescent proteins that do not fold correctly in the periplasm, nanobodies with Fc domains, and nanobodies containing free cysteine tags.
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13
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Al-Mansoori L, Elsinga P, Goda SK. Bio-vehicles of cytotoxic drugs for delivery to tumor specific targets for cancer precision therapy. Biomed Pharmacother 2021; 144:112260. [PMID: 34607105 DOI: 10.1016/j.biopha.2021.112260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 02/09/2023] Open
Abstract
Abnormal structural and molecular changes in malignant tissues were thoroughly investigated and utilized to target tumor cells, hence rescuing normal healthy tissues and lowering the unwanted side effects as non-specific cytotoxicity. Various ligands for cancer cell specific markers have been uncovered and inspected for directional delivery of the anti-cancer drug to the tumor site, in addition to diagnostic applications. Over the past few decades research related to the ligand targeted therapy (LTT) increased tremendously aiming to treat various pathologies, mainly cancers with well exclusive markers. Malignant tumors are known to induce elevated levels of a variety of proteins and peptides known as cancer "markers" as certain antigens (e.g., Prostate specific membrane antigen "PSMA", carcinoembryonic antigen "CEA"), receptors (folate receptor, somatostatin receptor), integrins (Integrin αvβ3) and cluster of differentiation molecules (CD13). The choice of an appropriate marker to be targeted and the design of effective ligand-drug conjugate all has to be carefully selected to generate the required therapeutic effect. Moreover, since some tumors express aberrantly high levels of more than one marker, some approaches investigated targeting cancer cells with more than one ligand (dual or multi targeting). We aim in this review to report an update on the cancer-specific receptors and the vehicles to deliver cytotoxic drugs, including recent advancements on nano delivery systems and their implementation in targeted cancer therapy. We will discuss the advantages and limitations facing this approach and possible solutions to mitigate these obstacles. To achieve the said aim a literature search in electronic data bases (PubMed and others) using keywords "Cancer specific receptors, cancer specific antibody, tumor specific peptide carriers, cancer overexpressed proteins, gold nanotechnology and gold nanoparticles in cancer treatment" was carried out.
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Affiliation(s)
- Layla Al-Mansoori
- Qatar University, Biomedical Research Centre, Qatar University, Doha 2713, Qatar.
| | - Philip Elsinga
- University of Groningen, University Medical Center Groningen (UMCG), Department of Nuclear Medicine and Molecular Imaging, Groningen, the Netherlands.
| | - Sayed K Goda
- Cairo University, Faculty of Science, Giza, Egypt; University of Derby, College of Science and Engineering, Derby, UK.
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Wang L, Zhang G, Qin L, Ye H, Wang Y, Long B, Jiao Z. Anti-EGFR Binding Nanobody Delivery System to Improve the Diagnosis and Treatment of Solid Tumours. Recent Pat Anticancer Drug Discov 2021; 15:200-211. [PMID: 32885759 DOI: 10.2174/1574892815666200904111728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 12/09/2022]
Abstract
BACKGROUND Epidermal Growth Factor Receptor (EGFR) and members of its homologous protein family mediate transmembrane signal transduction by binding to a specific ligand, which leads to regulated cell growth, differentiation, proliferation and metastasis. With the development and application of Genetically Engineered Antibodies (GEAs), Nanobodies (Nbs) constitute a new research hot spot in many diseases. A Nb is characterized by its low molecular weight, deep tissue penetration, good solubility and high antigen-binding affinity, the anti-EGFR Nbs are of significance for the diagnosis and treatment of EGFR-positive tumours. OBJECTIVE This review aims to provide a comprehensive overview of the information about the molecular structure of EGFR and its transmembrane signal transduction mechanism, and discuss the anti-EGFR-Nbs influence on the diagnosis and treatment of solid tumours. METHODS Data were obtained from PubMed, Embase and Web of Science. All patents are searched from the following websites: the World Intellectual Property Organization (WIPO®), the United States Patent Trademark Office (USPTO®) and Google Patents. RESULTS EGFR is a key target for regulating transmembrane signaling. The anti-EGFR-Nbs for targeted drugs could effectively improve the diagnosis and treatment of solid tumours. CONCLUSION EGFR plays a role in transmembrane signal transduction. The Nbs, especially anti- EGFR-Nbs, have shown effectiveness in the diagnosis and treatment of solid tumours. How to increase the affinity of Nb and reduce its immunogenicity remain a great challenge.
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Affiliation(s)
- Long Wang
- The First Department of General Surgery, Lanzhou University Second Hospital, Lanzhou 730000, Gansu Province, China
| | - Gengyuan Zhang
- The First Department of General Surgery, Lanzhou University Second Hospital, Lanzhou 730000, Gansu Province, China
| | - Long Qin
- The Cuiying Center, Lanzhou University Second Hospital, Lanzhou 730000, Gansu, China
| | - Huili Ye
- The Cuiying Center, Lanzhou University Second Hospital, Lanzhou 730000, Gansu, China
| | - Yan Wang
- The Cuiying Center, Lanzhou University Second Hospital, Lanzhou 730000, Gansu, China
| | - Bo Long
- The First Department of General Surgery, Lanzhou University Second Hospital, Lanzhou 730000, Gansu Province, China
| | - Zuoyi Jiao
- The First Department of General Surgery, Lanzhou University Second Hospital, Lanzhou 730000, Gansu Province, China
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Molecular Engineering of Curcumin, an Active Constituent of Curcuma longa L. (Turmeric) of the Family Zingiberaceae with Improved Antiproliferative Activity. PLANTS 2021; 10:plants10081559. [PMID: 34451604 PMCID: PMC8398451 DOI: 10.3390/plants10081559] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/24/2021] [Accepted: 07/26/2021] [Indexed: 11/26/2022]
Abstract
Cancer is the world’s second leading cause of death, accounting for nearly 10 million deaths and 19.3 million new cases in 2020. Curcumin analogs are gaining popularity as anticancer agents currently. We reported herein the isolation, molecular engineering, molecular docking, antiproliferative, and anti-epidermal growth factor receptor (anti-EGFR) activities of curcumin analogs. Three curcumin analogs were prepared and docked against the epidermal growth factor receptor (EGFR), revealing efficient binding. Antiproliferative activity against 60 NCI cancer cell lines was assessed using National Cancer Institute (NCI US) protocols. The compound 3b,c demonstrated promising antiproliferative activity in single dose (at 10 µM) as well as five dose (0.01, 0.10, 1.00, 10, and 100 µM). Compound 3c inhibited leukemia cancer panel better than other cancer panels with growth inhibition of 50% (GI50) values ranging from 1.48 to 2.73 µM, and the most promising inhibition with GI50 of 1.25 µM was observed against leukemia cell line SR, while the least inhibition was found against non-small lung cancer cell line NCI-H226 with GI50 value of 7.29 µM. Compounds 3b,c demonstrated superior antiproliferative activity than curcumin and gefitinib. In molecular docking, compound 3c had the most significant interaction with four H-bonds and three π–π stacking, and compound 3c was found to moderately inhibit EGFR. The curcumin analogs discovered in this study have the potential to accelerate the anticancer drug discovery program.
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16
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Bolli E, Scherger M, Arnouk SM, Pombo Antunes AR, Straßburger D, Urschbach M, Stickdorn J, De Vlaminck K, Movahedi K, Räder HJ, Hernot S, Besenius P, Van Ginderachter JA, Nuhn L. Targeted Repolarization of Tumor-Associated Macrophages via Imidazoquinoline-Linked Nanobodies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004574. [PMID: 34026453 PMCID: PMC8132149 DOI: 10.1002/advs.202004574] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/14/2021] [Indexed: 05/06/2023]
Abstract
Tumor-associated macrophages (TAMs) promote the immune suppressive microenvironment inside tumors and are, therefore, considered as a promising target for the next generation of cancer immunotherapies. To repolarize their phenotype into a tumoricidal state, the Toll-like receptor 7/8 agonist imidazoquinoline IMDQ is site-specifically and quantitatively coupled to single chain antibody fragments, so-called nanobodies, targeting the macrophage mannose receptor (MMR) on TAMs. Intravenous injection of these conjugates result in a tumor- and cell-specific delivery of IMDQ into MMRhigh TAMs, causing a significant decline in tumor growth. This is accompanied by a repolarization of TAMs towards a pro-inflammatory phenotype and an increase in anti-tumor T cell responses. Therefore, the therapeutic benefit of such nanobody-drug conjugates may pave the road towards effective macrophage re-educating cancer immunotherapies.
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Affiliation(s)
- Evangelia Bolli
- Lab of Cellular and Molecular ImmunologyVrije Universiteit BrusselPleinlaan 2Brussels1050Belgium
- Myeloid Cell Immunology LabVIB Center for Inflammation ResearchBrussels1050Belgium
| | | | - Sana M. Arnouk
- Lab of Cellular and Molecular ImmunologyVrije Universiteit BrusselPleinlaan 2Brussels1050Belgium
- Myeloid Cell Immunology LabVIB Center for Inflammation ResearchBrussels1050Belgium
| | - Ana Rita Pombo Antunes
- Lab of Cellular and Molecular ImmunologyVrije Universiteit BrusselPleinlaan 2Brussels1050Belgium
- Myeloid Cell Immunology LabVIB Center for Inflammation ResearchBrussels1050Belgium
| | - David Straßburger
- Department of ChemistryJohannes Gutenberg‐University MainzDuesbergweg 10‐14Mainz55128Germany
| | - Moritz Urschbach
- Department of ChemistryJohannes Gutenberg‐University MainzDuesbergweg 10‐14Mainz55128Germany
| | - Judith Stickdorn
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Karen De Vlaminck
- Lab of Cellular and Molecular ImmunologyVrije Universiteit BrusselPleinlaan 2Brussels1050Belgium
- Myeloid Cell Immunology LabVIB Center for Inflammation ResearchBrussels1050Belgium
| | - Kiavash Movahedi
- Lab of Cellular and Molecular ImmunologyVrije Universiteit BrusselPleinlaan 2Brussels1050Belgium
- Myeloid Cell Immunology LabVIB Center for Inflammation ResearchBrussels1050Belgium
| | - Hans Joachim Räder
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Sophie Hernot
- Laboratory of In Vivo Cellular and Molecular ImagingVrije Universiteit BrusselLaarbeeklaan 103Brussels1090Belgium
| | - Pol Besenius
- Department of ChemistryJohannes Gutenberg‐University MainzDuesbergweg 10‐14Mainz55128Germany
| | - Jo A. Van Ginderachter
- Lab of Cellular and Molecular ImmunologyVrije Universiteit BrusselPleinlaan 2Brussels1050Belgium
- Myeloid Cell Immunology LabVIB Center for Inflammation ResearchBrussels1050Belgium
| | - Lutz Nuhn
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
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Rinne SS, Orlova A, Tolmachev V. PET and SPECT Imaging of the EGFR Family (RTK Class I) in Oncology. Int J Mol Sci 2021; 22:ijms22073663. [PMID: 33915894 PMCID: PMC8036874 DOI: 10.3390/ijms22073663] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/24/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
The human epidermal growth factor receptor family (EGFR-family, other designations: HER family, RTK Class I) is strongly linked to oncogenic transformation. Its members are frequently overexpressed in cancer and have become attractive targets for cancer therapy. To ensure effective patient care, potential responders to HER-targeted therapy need to be identified. Radionuclide molecular imaging can be a key asset for the detection of overexpression of EGFR-family members. It meets the need for repeatable whole-body assessment of the molecular disease profile, solving problems of heterogeneity and expression alterations over time. Tracer development is a multifactorial process. The optimal tracer design depends on the application and the particular challenges of the molecular target (target expression in tumors, endogenous expression in healthy tissue, accessibility). We have herein summarized the recent preclinical and clinical data on agents for Positron Emission Tomography (PET) and Single Photon Emission Tomography (SPECT) imaging of EGFR-family receptors in oncology. Antibody-based tracers are still extensively investigated. However, their dominance starts to be challenged by a number of tracers based on different classes of targeting proteins. Among these, engineered scaffold proteins (ESP) and single domain antibodies (sdAb) show highly encouraging results in clinical studies marking a noticeable trend towards the use of smaller sized agents for HER imaging.
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Affiliation(s)
- Sara S. Rinne
- Department of Medicinal Chemistry, Uppsala University, 751 23 Uppsala, Sweden; (S.S.R.); (A.O.)
| | - Anna Orlova
- Department of Medicinal Chemistry, Uppsala University, 751 23 Uppsala, Sweden; (S.S.R.); (A.O.)
- Science for Life Laboratory, Uppsala University, 752 37 Uppsala, Sweden
- Research Centrum for Oncotheranostics, Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Vladimir Tolmachev
- Research Centrum for Oncotheranostics, Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russia
- Department of Immunology, Genetics and Pathology, Uppsala University, 752 37 Uppsala, Sweden
- Correspondence: ; Tel.: +46-704-250-782
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Harmand TJ, Islam A, Pishesha N, Ploegh HL. Nanobodies as in vivo, non-invasive, imaging agents. RSC Chem Biol 2021; 2:685-701. [PMID: 34212147 PMCID: PMC8190910 DOI: 10.1039/d1cb00023c] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
In vivo imaging has become in recent years an incredible tool to study biological events and has found critical applications in diagnostic medicine. Although a lot of efforts and applications have been achieved using monoclonal antibodies, other types of delivery agents are being developed. Among them, VHHs, antigen binding fragments derived from camelid heavy chain-only antibodies, also known as nanobodies, have particularly attracted attention. Indeed, their stability, fast clearance, good tissue penetration, high solubility, simple cloning and recombinant production make them attractive targeting agents for imaging modalities such as PET, SPECT or Infra-Red. In this review, we discuss the pioneering work that has been carried out using VHHs and summarize the recent developments that have been made using nanobodies for in vivo, non-invasive, imaging.
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Affiliation(s)
- Thibault J Harmand
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School Boston MA USA
| | - Ashraful Islam
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School Boston MA USA
- Department of Clinical Medicine, UiT The Arctic University of Norway Tromso Norway
| | - Novalia Pishesha
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School Boston MA USA
- Society of Fellows, Harvard University Cambridge MA USA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard Cambridge MA USA
| | - Hidde L Ploegh
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School Boston MA USA
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Liu M, Li L, Jin D, Liu Y. Nanobody-A versatile tool for cancer diagnosis and therapeutics. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 13:e1697. [PMID: 33470555 DOI: 10.1002/wnan.1697] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/19/2020] [Accepted: 12/28/2020] [Indexed: 12/13/2022]
Abstract
In spite of the successful use of monoclonal antibodies (mAbs) in clinic for tumor treatment, their applications are still hampered in therapeutic development due to limitations, such as tumor penetration and high cost of manufacture. Nanobody, a single domain antibody that holds the strong antigen targeting and binding capacity, has demonstrated various advantages relative to antibody. Nanobody is considered as a next-generation of antibody-derived tool in the antigen related recognition and modulation. A number of nanobodies have been developed and evaluated in different stages of clinical trials for cancer treatment. Here we summarized the current progress of nanobody in tumor diagnosis and therapeutics, particularly on the conjugation of nanobody with functional moieties. The nanobody conjugation of diagnostic agents, such as radionuclide and optical tracers, can achieve specific tumor imaging. The nanobody-drug conjugates can enhance the therapeutic efficacy of anti-tumor drugs and reduce the adverse effects. The decoration of nanobody on nanodrug delivery systems can further improve the drug targeting to specific tumors. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Manman Liu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Li Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Duo Jin
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Yangzhong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, China
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Sharifi J, Khirehgesh MR, Safari F, Akbari B. EGFR and anti-EGFR nanobodies: review and update. J Drug Target 2020; 29:387-402. [DOI: 10.1080/1061186x.2020.1853756] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jafar Sharifi
- Department of Medical Biotechnology, School of Medical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Mohammad Reza Khirehgesh
- Department of Medical Biotechnology, School of Medical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
| | - Fatemeh Safari
- School of Paramedical Sciences, Diagnostic Laboratory Sciences and Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bahman Akbari
- Department of Medical Biotechnology, School of Medical Sciences, Kermanshah University of Medical Science, Kermanshah, Iran
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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21
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Single-domain antibodies for radio nuclear imaging and therapy of esophageal squamous cell carcinoma: a narrative review. JOURNAL OF BIO-X RESEARCH 2020. [DOI: 10.1097/jbr.0000000000000074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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22
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de Beer MA, Giepmans BNG. Nanobody-Based Probes for Subcellular Protein Identification and Visualization. Front Cell Neurosci 2020; 14:573278. [PMID: 33240044 PMCID: PMC7667270 DOI: 10.3389/fncel.2020.573278] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/05/2020] [Indexed: 12/14/2022] Open
Abstract
Understanding how building blocks of life contribute to physiology is greatly aided by protein identification and cellular localization. The two main labeling approaches developed over the past decades are labeling with antibodies such as immunoglobulin G (IgGs) or use of genetically encoded tags such as fluorescent proteins. However, IgGs are large proteins (150 kDa), which limits penetration depth and uncertainty of target position caused by up to ∼25 nm distance of the label created by the chosen targeting approach. Additionally, IgGs cannot be easily recombinantly modulated and engineered as part of fusion proteins because they consist of multiple independent translated chains. In the last decade single domain antigen binding proteins are being explored in bioscience as a tool in revealing molecular identity and localization to overcome limitations by IgGs. These nanobodies have several potential benefits over routine applications. Because of their small size (15 kDa), nanobodies better penetrate during labeling procedures and improve resolution. Moreover, nanobodies cDNA can easily be fused with other cDNA. Multidomain proteins can thus be easily engineered consisting of domains for targeting (nanobodies) and visualization by fluorescence microscopy (fluorescent proteins) or electron microscopy (based on certain enzymes). Additional modules for e.g., purification are also easily added. These nanobody-based probes can be applied in cells for live-cell endogenous protein detection or may be purified prior to use on molecules, cells or tissues. Here, we present the current state of nanobody-based probes and their implementation in microscopy, including pitfalls and potential future opportunities.
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Affiliation(s)
- Marit A de Beer
- Department of Biomedical Sciences of Cells and Systems, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Ben N G Giepmans
- Department of Biomedical Sciences of Cells and Systems, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
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Mojica CAR, Ybañez WS, Olarte KCV, Poblete ABC, Bagamasbad PD. Differential Glucocorticoid-Dependent Regulation and Function of the ERRFI1 Gene in Triple-Negative Breast Cancer. Endocrinology 2020; 161:5841101. [PMID: 32432675 PMCID: PMC7316368 DOI: 10.1210/endocr/bqaa082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/15/2020] [Indexed: 02/07/2023]
Abstract
Glucocorticoids (GCs; eg, hydrocortisone [CORT]) are routinely used as chemotherapeutic, anti-emetic, and palliative agents in breast cancer (BCa) therapy. The effects of GC signaling on BCa progression, however, remain a contentious topic as GC treatment seems to be beneficial for receptor-positive subtypes but elicits unfavorable responses in triple-negative BCa (TNBC). The mechanistic basis for these conflicting effects of GC in BCa is poorly understood. In this study, we sought to decipher the molecular mechanisms that govern the GC-dependent induction of the tumor suppressor ERRFI1 gene, an inhibitor of epidermal growth factor receptor (EGFR) signaling, and characterize the role of the GC-ERRFI1 regulatory axis in TNBC. Treatment of TNBC cell lines with a protein synthesis inhibitor or GC receptor (GR) antagonist followed by gene expression analysis suggests that ERRFI1 is a direct GR target. Using in silico analysis coupled with enhancer-reporter assays, we identified a putative ERRFI1 enhancer that supports CORT-dependent transactivation. In orthogonal assays for cell proliferation, survival, migration, and apoptosis, CORT mostly facilitated an oncogenic phenotype regardless of malignancy status. Lentiviral knockdown and overexpression of ERRFI1 showed that the CORT-enhanced oncogenic phenotype is restricted by ERRFI1 in the normal breast epithelial model MCF10A and to a lesser degree in the metastatic TNBC line MDA-MB-468. Conversely, ERRFI1 conferred pro-tumorigenic effects in the highly metastatic TNBC model MDA-MB-231. Taken together, our findings suggest that the progressive loss of the GC-dependent regulation and anti-tumorigenic function of ERRFI1 influences BCa progression and may contribute to the unfavorable effects of GC therapy in TNBC.
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Affiliation(s)
- Chromewell Agustin R Mojica
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Weand S Ybañez
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Kevin Christian V Olarte
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Alyssa Beatrice C Poblete
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Pia D Bagamasbad
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
- Correspondence: Pia D. Bagamasbad, PhD, National Institute of Molecular Biology and Biotechnology, National Science Complex, University of the Philippines, Diliman, Quezon City, Metro Manila 1101, Philippines. E-mail:
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Moradi A, Pourseif MM, Jafari B, Parvizpour S, Omidi Y. Nanobody-based therapeutics against colorectal cancer: Precision therapies based on the personal mutanome profile and tumor neoantigens. Pharmacol Res 2020; 156:104790. [DOI: 10.1016/j.phrs.2020.104790] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/07/2020] [Accepted: 03/31/2020] [Indexed: 12/19/2022]
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Yu Z, Hu M, Li Z, Zhu L, Guo Y, Liu Q, Lan W, Jiang J, Wang L. Anti-G250 nanobody-functionalized nanobubbles targeting renal cell carcinoma cells for ultrasound molecular imaging. NANOTECHNOLOGY 2020; 31:205101. [PMID: 32107342 DOI: 10.1088/1361-6528/ab7040] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Traditional imaging examinations have difficulty in identifying benign and malignant changes in renal masses. This difficulty may be solved by ultrasound molecular imaging based on targeted nanobubbles, which could specifically enhance the ultrasound imaging of renal cell carcinomas (RCC) so as to discriminate benign and malignant renal masses. In this study, we aimed to prepare anti-G250 nanobody-functionalized targeted nanobubbles (anti-G250 NTNs) by coupling anti-G250 nanobodies to lipid nanobubbles and to verify their target specificity and binding ability to RCC cells that express G250 antigen and their capacity to enhance ultrasound imaging of RCC xenografts. Anti-G250 nanobodies were coupled to the lipid nanobubbles using the biotin-streptavidin bridge method. The average particle diameter of the prepared anti-G250 NTNs was 446 nm. Immunofluorescence confirmed that anti-G250 nanobodies were uniformly distributed on the surfaces of nanobubbles. In vitro experiments showed that the anti-G250 NTNs specifically bound to G250-positive 786-O cells and HeLa cells with affinities of 88.13% ± 4.37% and 71.8% ± 5.7%, respectively, and that they did not bind to G250-negative ACHN cells. The anti-G250 NTNs could significantly enhance the ultrasound imaging of xenograft tumors arising from 786-O cells and HeLa cells compared with blank nanobubbles, while the enhancement was not significant for xenograft tumors arising from ACHN cells. Immunofluorescence of tumor tissue slices confirmed that the anti-G250 NTNs could enter the tissue space through tumor blood vessels and bind to tumor cells specifically. In conclusion, anti-G250 nanobody-functionalized targeted nanobubbles could specifically bind to G250-positive RCC cells and enhance the ultrasound imaging of G250-positive RCC xenografts. This study has high-potential clinical application value for the diagnosis and differential diagnosis of renal tumors.
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Affiliation(s)
- Zhiping Yu
- Department of Urology, Daping Hospital, Army Medical University, Chongqing, People's Republic of China
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26
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Deken MM, Kijanka MM, Beltrán Hernández I, Slooter MD, de Bruijn HS, van Diest PJ, van Bergen En Henegouwen PMP, Lowik CWGM, Robinson DJ, Vahrmeijer AL, Oliveira S. Nanobody-targeted photodynamic therapy induces significant tumor regression of trastuzumab-resistant HER2-positive breast cancer, after a single treatment session. J Control Release 2020; 323:269-281. [PMID: 32330574 PMCID: PMC7116241 DOI: 10.1016/j.jconrel.2020.04.030] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 12/18/2022]
Abstract
Rationale A substantial number of breast cancer patients with an overexpression of the human epidermal growth factor receptor 2 (HER2) have residual disease after neoadjuvant therapy or become resistant to trastuzumab. Photodynamic therapy (PDT) using nanobodies targeted to HER2 is a promising treatment option for these patients. Here we investigate the in vitro and in vivo antitumor efficacy of HER2-targeted nanobody-photosensitizer (PS) conjugate PDT. Methods Nanobodies targeting HER2 were obtained from phage display selections. Monovalent nanobodies were engineered into a biparatopic construct. The specificity of selected nanobodies was tested in immunofluorescence assays and their affinity was evaluated in binding studies, both performed in a panel of breast cancer cells varying in HER2 expression levels. The selected HER2-targeted nanobodies 1D5 and 1D5-18A12 were conjugated to the photosensitizer IRDye700DX and tested in in vitro PDT assays. Mice bearing orthotopic HCC1954 trastuzumab-resistant tumors with high HER2 expression or MCF-7 tumors with low HER2 expression were intravenously injected with nanobody-PS conjugates. Quantitative fluorescence spectroscopy was performed for the determination of the local pharmacokinetics of the fluorescence conjugates. After nanobody-PS administration, tumors were illuminated to a fluence of 100 J∙cm-2, with a fluence rate of 50 mW∙cm-2, and thereafter tumor growth was measured with a follow-up until 30 days. Results The selected nanobodies remained functional after conjugation to the PS, binding specifically and with high affinity to HER2-positive cells. Both nanobody-PS conjugates potently and selectively induced cell death of HER2 overexpressing cells, either sensitive or resistant to trastuzumab, with low nanomolar LD50 values. In vivo, quantitative fluorescence spectroscopy showed specific accumulation of nanobody-PS conjugates in HCC1954 tumors and indicated 2 h post injection as the most suitable time point to apply light. Nanobody-targeted PDT with 1D5-PS and 1D5-18A12-PS induced significant tumor regression of trastuzumab-resistant high HER2 expressing tumors, whereas in low HER2 expressing tumors only a slight growth delay was observed. Conclusion Nanobody-PS conjugates accumulated selectively in vivo and their fluorescence could be detected through optical imaging. Upon illumination, they selectively induced significant tumor regression of HER2 overexpressing tumors with a single treatment session. Nanobody-targeted PDT is therefore suggested as a new additional treatment for HER2-positive breast cancer, particularly of interest for trastuzumab-resistant HER2-positive breast cancer. Further studies are now needed to assess the value of this approach in clinical practice.
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Affiliation(s)
- Marion M Deken
- Dept. of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - Marta M Kijanka
- Division of Cell Biology, Neurobiology and Biophysics, Dept. of Biology, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Irati Beltrán Hernández
- Pharmaceutics, Dept. of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Maxime D Slooter
- Dept. of Radiology, Division of Molecular Imaging, Leiden University Medical Center, Leiden, the Netherlands
| | - Henriette S de Bruijn
- Dept. of Otorhinolaryngology & Head and Neck Surgery, Center for Optical Diagnostics and Therapy, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Paul J van Diest
- Dept. of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Paul M P van Bergen En Henegouwen
- Division of Cell Biology, Neurobiology and Biophysics, Dept. of Biology, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Clemens W G M Lowik
- Dept. of Radiology, Optical Molecular Imaging, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Dominic J Robinson
- Dept. of Surgery, Leiden University Medical Center, Leiden, the Netherlands; Dept. of Otorhinolaryngology & Head and Neck Surgery, Center for Optical Diagnostics and Therapy, Erasmus Medical Center, Rotterdam, the Netherlands
| | | | - Sabrina Oliveira
- Division of Cell Biology, Neurobiology and Biophysics, Dept. of Biology, Faculty of Science, Utrecht University, Utrecht, the Netherlands; Pharmaceutics, Dept. of Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, the Netherlands.
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27
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de Marco A. Recombinant expression of nanobodies and nanobody-derived immunoreagents. Protein Expr Purif 2020; 172:105645. [PMID: 32289357 PMCID: PMC7151424 DOI: 10.1016/j.pep.2020.105645] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 12/12/2022]
Abstract
Antibody fragments for which the sequence is available are suitable for straightforward engineering and expression in both eukaryotic and prokaryotic systems. When produced as fusions with convenient tags, they become reagents which pair their selective binding capacity to an orthogonal function. Several kinds of immunoreagents composed by nanobodies and either large proteins or short sequences have been designed for providing inexpensive ready-to-use biological tools. The possibility to choose among alternative expression strategies is critical because the fusion moieties might require specific conditions for correct folding or post-translational modifications. In the case of nanobody production, the trend is towards simpler but reliable (bacterial) methods that can substitute for more cumbersome processes requiring the use of eukaryotic systems. The use of these will not disappear, but will be restricted to those cases in which the final immunoconstructs must have features that cannot be obtained in prokaryotic cells. At the same time, bacterial expression has evolved from the conventional procedure which considered exclusively the nanobody and nanobody-fusion accumulation in the periplasm. Several reports show the advantage of cytoplasmic expression, surface-display and secretion for at least some applications. Finally, there is an increasing interest to use as a model the short nanobody sequence for the development of in silico methodologies aimed at optimizing the yields, stability and affinity of recombinant antibodies. There is an increasing request for immunoreagents based on nanobodies. The multiplicity of their applications requires constructs with different structural complexity. Alternative expression methods are necessary to achieve such structural requirements. In silico optimization of nanobody biophysical characteristics becomes more and more reliable.
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Affiliation(s)
- Ario de Marco
- Laboratory for Environmental and Life Sciences, University of Nova Gorica, Vipavska cesta 13, S-5000, Nova Gorica, Slovenia.
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Pèlegrin A, Gutowski M, Cailler F. Les anticorps, outils de choix pour la chirurgie guidée par fluorescence. Med Sci (Paris) 2020; 35:1066-1071. [DOI: 10.1051/medsci/2019207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
La chirurgie guidée par fluorescence se développe en clinique depuis plusieurs années. Si l’utilisation de colorants non ciblés peut être utile dans certaines pathologies, des agents de contraste spécifiques sont indispensables en oncologie. Comme le montrent les dernières études cliniques, les anticorps monoclonaux ont toutes les caractéristiques pour jouer un rôle majeur dans ce domaine d’imagerie médicale, à condition que la cible antigénique soit pertinente.
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Abstract
Molecular imaging enables both spatial and temporal understanding of the complex biologic systems underlying carcinogenesis and malignant spread. Single-photon emission tomography (SPECT) is a versatile nuclear imaging-based technique with ideal properties to study these processes in vivo in small animal models, as well as to identify potential drug candidates and characterize their antitumor action and potential adverse effects. Small animal SPECT and SPECT-CT (single-photon emission tomography combined with computer tomography) systems continue to evolve, as do the numerous SPECT radiopharmaceutical agents, allowing unprecedented sensitivity and quantitative molecular imaging capabilities. Several of these advances, their specific applications in oncology as well as new areas of exploration are highlighted in this chapter.
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Affiliation(s)
- Benjamin L Franc
- Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H2232, MC 5281, Stanford, CA, 94305-5105, USA.
| | - Youngho Seo
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA
| | - Robert Flavell
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA
| | - Carina Mari Aparici
- Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, H2232, MC 5281, Stanford, CA, 94305-5105, USA
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Rajitha B, Malla RR, Vadde R, Kasa P, Prasad GLV, Farran B, Kumari S, Pavitra E, Kamal MA, Raju GSR, Peela S, Nagaraju GP. Horizons of nanotechnology applications in female specific cancers. Semin Cancer Biol 2019; 69:376-390. [PMID: 31301361 DOI: 10.1016/j.semcancer.2019.07.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/23/2019] [Accepted: 07/04/2019] [Indexed: 12/20/2022]
Abstract
Female-specific cancers are the most common cancers in women worldwide. Early detection methods remain unavailable for most of these cancers, signifying that most of them are diagnosed at later stages. Furthermore, current treatment options for most female-specific cancers are surgery, radiation and chemotherapy. Although important milestones in molecularly targeted approaches have been achieved lately, current therapeutic strategies for female-specific cancers remain limited, ineffective and plagued by the emergence of chemoresistance, which aggravates prognosis. Recently, the application of nanotechnology to the medical field has allowed the development of novel nano-based approaches for the management and treatment of cancers, including female-specific cancers. These approaches promise to improve patient survival rates by reducing side effects, enabling selective delivery of drugs to tumor tissues and enhancing the uptake of therapeutic compounds, thus increasing anti-tumor activity. In this review, we focus on the application of nano-based technologies to the design of novel and innovative diagnostic and therapeutic strategies in the context of female-specific cancers, highlighting their potential uses and limitations.
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Affiliation(s)
- Balney Rajitha
- Department of Pathology, WellStar Hospital, Marietta, GA, 30060, USA
| | - Rama Rao Malla
- Department of Biochemistry, GITAM Institute of Science, GITAM University, Visakhapatnam, AP, 530045, India
| | - Ramakrishna Vadde
- Department of Biotechnology and Bioinformatics, Yogi Vemana University, Kadapa, AP, 516003, India
| | - Prameswari Kasa
- Dr. LV Prasad Diagnostics and Research Laboratory, Khairtabad, Hyderabad, TS, 500004, India
| | | | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Seema Kumari
- Department of Biochemistry, GITAM Institute of Science, GITAM University, Visakhapatnam, AP, 530045, India
| | - Eluri Pavitra
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100, Inha-ro, Incheon 22212, Republic of Korea
| | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, P. O. Box 80216, Jeddah 21589, Saudi Arabia; Enzymoics, 7 Peterlee Place, Hebersham, NSW 2770, Australia; Novel Global Community Educational Foundation, Australia
| | - Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Sujatha Peela
- Department of Biotechnology, Dr. B.R. Ambedkar University, Srikakulam, AP, 532410, India
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
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31
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Van Acker T, Buckle T, Van Malderen SJM, van Willigen DM, van Unen V, van Leeuwen FWB, Vanhaecke F. High-resolution imaging and single-cell analysis via laser ablation-inductively coupled plasma-mass spectrometry for the determination of membranous receptor expression levels in breast cancer cell lines using receptor-specific hybrid tracers. Anal Chim Acta 2019; 1074:43-53. [PMID: 31159938 DOI: 10.1016/j.aca.2019.04.064] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/16/2019] [Accepted: 04/26/2019] [Indexed: 02/07/2023]
Abstract
This work evaluates the possibility of placement of high-resolution imaging and single-cell analysis via laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) within precision medicine by assessing the suitability of LA-ICP-MS as a micro-analytical technique for the localization and quantification of membranous receptors in heterogeneous cell samples that express both the membrane-bound receptors C-X-C chemokine receptor type 4 (CXCR4) and epidermal growth factor receptor (EGFR). Staining of the breast cancer cell lines MDA-MB-231 X4 and MDA-MB-468 was achieved using receptor-specific hybrid tracers, containing both a fluorophore and a DTPA single-lanthanide chelate. Prior to LA-ICP-MS imaging, fluorescence confocal microscopy (FCM) imaging was performed to localize the receptors, hereby enabling direct comparison. Based on the different expression levels of CXCR4 and EGFR, a distinction could be made between the cell lines using both imaging modalities. Furthermore, FCM and LA-ICP-MS demonstrated complementary characteristics, as a more distinct discrimination could be made between both cell lines based on the EGFR-targeting hybrid tracer via LA-ICP-MS, due to the intrinsic CXCR4-related green fluorescent protein (GFP) signal present in the MDA-MB-231 X4 cells. Employing state-of-the-art LA-ICP-MS instrumentation in bidirectional area scanning mode for sub-cellular imaging of MDA-MB-231 X4 cells enabled the specific binding of the CXCR4-targeting hybrid tracer to the cell membrane to be clearly demonstrated. The stretching of cells over the glass substrate led to a considerably higher signal response for pixels at the cell edges, relative to the more central pixels. The determination of the expression levels of CXCR4 and EGFR for the MDA-MB-468 cell line was performed using LA-ICP-MS single-cell analysis (sc-LA-ICP-MS) and external calibration, based on the quantitative ablation of Ho-spiked dried gelatin droplet standards. Additionally, a second calibration approach was applied based on spot ablation of highly homogeneous dried gelatin gels in combination with the determination of the ablated volume using atomic force microscopy (AFM) and yielded results which were in good agreement with the expression levels determined via flow cytometry (FC) and mass cytometry (MC). Hybrid tracers enable a direct comparison between (i) FCM and LA-ICP-MS imaging for the evaluation of the microscopic binding pattern and between (ii) FC, MC and sc-LA-ICP-MS for the quantification of receptor expression levels in single cells.
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Affiliation(s)
- Thibaut Van Acker
- Ghent University, Department of Chemistry, Atomic & Mass Spectrometry - A&MS Research Unit, Campus Sterre, Krijgslaan 281-S12, 9000, Ghent, Belgium.
| | - Tessa Buckle
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2300, RC, Leiden, the Netherlands.
| | - Stijn J M Van Malderen
- Ghent University, Department of Chemistry, Atomic & Mass Spectrometry - A&MS Research Unit, Campus Sterre, Krijgslaan 281-S12, 9000, Ghent, Belgium; Ghent University, Department of Chemistry, X-ray Microspectroscopy and Imaging Research Unit, Campus Sterre, Krijgslaan 281-S12, 9000, Ghent, Belgium.
| | - Danny M van Willigen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2300, RC, Leiden, the Netherlands.
| | - Vincent van Unen
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2300, RC, Leiden, the Netherlands.
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Albinusdreef 2, 2300, RC, Leiden, the Netherlands.
| | - Frank Vanhaecke
- Ghent University, Department of Chemistry, Atomic & Mass Spectrometry - A&MS Research Unit, Campus Sterre, Krijgslaan 281-S12, 9000, Ghent, Belgium.
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32
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Debie P, Devoogdt N, Hernot S. Targeted Nanobody-Based Molecular Tracers for Nuclear Imaging and Image-Guided Surgery. Antibodies (Basel) 2019; 8:E12. [PMID: 31544818 PMCID: PMC6640687 DOI: 10.3390/antib8010012] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/29/2018] [Accepted: 01/07/2019] [Indexed: 12/11/2022] Open
Abstract
Molecular imaging is paving the way towards noninvasive detection, staging, and treatment follow-up of diseases such as cancer and inflammation-related conditions. Monoclonal antibodies have long been one of the staples of molecular imaging tracer design, although their long blood circulation and high nonspecific background limits their applicability. Nanobodies, unique antibody-binding fragments derived from camelid heavy-chain antibodies, have excellent properties for molecular imaging as they are able to specifically find their target early after injection, with little to no nonspecific background. Nanobody-based tracers using either nuclear or fluorescent labels have been heavily investigated preclinically and are currently making their way into the clinic. In this review, we will discuss different important factors in nanobody-tracer design, as well as the current state of the art regarding their application for nuclear and fluorescent imaging purposes. Furthermore, we will discuss how nanobodies can also be exploited for molecular therapy applications such as targeted radionuclide therapy and photodynamic therapy.
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Affiliation(s)
- Pieterjan Debie
- Laboratory for in vivo Cellular and Molecular Imaging, ICMI-BEFY/MIMA, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium.
| | - Nick Devoogdt
- Laboratory for in vivo Cellular and Molecular Imaging, ICMI-BEFY/MIMA, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium.
| | - Sophie Hernot
- Laboratory for in vivo Cellular and Molecular Imaging, ICMI-BEFY/MIMA, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium.
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Kutova OM, Guryev EL, Sokolova EA, Alzeibak R, Balalaeva IV. Targeted Delivery to Tumors: Multidirectional Strategies to Improve Treatment Efficiency. Cancers (Basel) 2019; 11:E68. [PMID: 30634580 PMCID: PMC6356537 DOI: 10.3390/cancers11010068] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 12/13/2022] Open
Abstract
Malignant tumors are characterized by structural and molecular peculiarities providing a possibility to directionally deliver antitumor drugs with minimal impact on healthy tissues and reduced side effects. Newly formed blood vessels in malignant lesions exhibit chaotic growth, disordered structure, irregular shape and diameter, protrusions, and blind ends, resulting in immature vasculature; the newly formed lymphatic vessels also have aberrant structure. Structural features of the tumor vasculature determine relatively easy penetration of large molecules as well as nanometer-sized particles through a blood⁻tissue barrier and their accumulation in a tumor tissue. Also, malignant cells have altered molecular profile due to significant changes in tumor cell metabolism at every level from the genome to metabolome. Recently, the tumor interaction with cells of immune system becomes the focus of particular attention, that among others findings resulted in extensive study of cells with preferential tropism to tumor. In this review we summarize the information on the diversity of currently existing approaches to targeted drug delivery to tumor, including (i) passive targeting based on the specific features of tumor vasculature, (ii) active targeting which implies a specific binding of the antitumor agent with its molecular target, and (iii) cell-mediated tumor targeting.
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Affiliation(s)
- Olga M Kutova
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Evgenii L Guryev
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Evgeniya A Sokolova
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Razan Alzeibak
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
| | - Irina V Balalaeva
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia.
- The Institute of Molecular Medicine, I.M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya str., Moscow 119991, Russia.
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34
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Choi D, Spinelli C, Montermini L, Rak J. Oncogenic Regulation of Extracellular Vesicle Proteome and Heterogeneity. Proteomics 2019; 19:e1800169. [PMID: 30561828 DOI: 10.1002/pmic.201800169] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 09/05/2018] [Indexed: 12/12/2022]
Abstract
Mutational and epigenetic driver events profoundly alter intercellular communication pathways in cancer. This effect includes deregulated release, molecular composition, and biological activity of extracellular vesicles (EVs), membranous cellular fragments ranging from a few microns to less than 100 nm in diameter and filled with bioactive molecular cargo (proteins, lipids, and nucleic acids). While EVs are usually classified on the basis of their physical properties and biogenetic mechanisms, recent analyses of their proteome suggest a larger than expected molecular diversity, a notion that is also supported by multicolour nano-flow cytometry and other emerging technology platforms designed to analyze single EVs. Both protein composition and EV diversity are markedly altered by oncogenic transformation, epithelial to mesenchymal transition, and differentiation of cancer stem cells. Interestingly, only a subset of EVs released from mutant cells may carry oncogenic proteins (e.g., EGFRvIII), hence, these EVs are often referred to as "oncosomes". Indeed, oncogenic transformation alters the repertoire of EV-associated proteins, increases the presence of pro-invasive cargo, and alters the composition of distinct EV populations. Molecular profiling of single EVs may reveal a more intricate effect of transforming events on the architecture of EV populations in cancer and shed new light on their biological role and diagnostic utility.
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Affiliation(s)
- Dongsic Choi
- Research Institute, Health Centre, Glen Site, McGill University, Montreal, Quebec, H4A 3J1, Canada
| | - Cristiana Spinelli
- Research Institute, Health Centre, Glen Site, McGill University, Montreal, Quebec, H4A 3J1, Canada
| | - Laura Montermini
- Research Institute, Health Centre, Glen Site, McGill University, Montreal, Quebec, H4A 3J1, Canada
| | - Janusz Rak
- Research Institute, Health Centre, Glen Site, McGill University, Montreal, Quebec, H4A 3J1, Canada
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35
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Glatt DM, Beckford Vera DR, Prabhu SS, Mumper RJ, Luft JC, Benhabbour SR, Parrott MC. Synthesis and Characterization of Cetuximab-Docetaxel and Panitumumab-Docetaxel Antibody-Drug Conjugates for EGFR-Overexpressing Cancer Therapy. Mol Pharm 2018; 15:5089-5102. [PMID: 30226780 DOI: 10.1021/acs.molpharmaceut.8b00672] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The safety and efficacy of anticancer antibody-drug conjugates (ADCs) depend on the selection of tumor-targeting monoclonal antibody (mAb), linker, and drug, as well as their specific chemical arrangement and linkage chemistry. In this study, we used a heterobifunctional cross-linker to conjugate docetaxel (DX) to cetuximab (CET) or panitumumab (PAN). The resulting ADCs were investigated for their in vitro EGFR-specific cytotoxicity and in vivo anticancer activity. Reaction conditions, such as reducing agent, time, temperature, and alkylation buffer, were optimized to yield potent and stable ADCs with consistent batch-to-batch drug-to-antibody ratios (DARs). ADCs were synthesized with DARs from 0.4 to 3.0, and all retained their EGFR affinity and specificity after modification. ADCs were sensitive to cell surface wildtype EGFR expression, demonstrating more cytotoxicity in EGFR-expressing A431 and MDA-MB-231 cell lines compared to U87MG cells. A431 tumor-bearing mice treated once weekly for four weeks with 100 mg/kg cetuximab-docetaxel ADC (C-SC-DX, DAR 2.5) showed durable anticancer responses and improved overall survival compared to the same treatment regimen with 1 mg/kg DX, 100 mg/kg CET, or a combination 1 mg/kg DX and 100 mg/kg CET. New treatment options are emerging for patients with both wild-type and mutated EGFR-overexpressing cancers, and these studies highlight the potential role of EGFR-targeted ADC therapies as a promising new treatment option.
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Affiliation(s)
- Dylan M Glatt
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
| | - Denis R Beckford Vera
- Department of Radiology, Biomedical Research Imaging Center , University of North Carolina at Chapel Hill , Marsico Hall, 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
| | - Shamit S Prabhu
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
| | - Russell J Mumper
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
| | - J Christopher Luft
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
| | - S Rahima Benhabbour
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy , University of North Carolina at Chapel Hill , 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States.,UNC-NCSU Joint Department of Biomedical Engineering , University of North Carolina at Chapel Hill , Marsico Hall, 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
| | - Matthew C Parrott
- Department of Radiology, Biomedical Research Imaging Center , University of North Carolina at Chapel Hill , Marsico Hall, 125 Mason Farm Road , Chapel Hill , North Carolina 27599 , United States
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36
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Fan K, Jiang B, Guan Z, He J, Yang D, Xie N, Nie G, Xie C, Yan X. Fenobody: A Ferritin-Displayed Nanobody with High Apparent Affinity and Half-Life Extension. Anal Chem 2018; 90:5671-5677. [PMID: 29634235 DOI: 10.1021/acs.analchem.7b05217] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nanobodies consist of a single domain variable fragment of a camelid heavy-chain antibody. Nanobodies have potential applications in biomedical fields because of their simple production procedures and low cost. Occasionally, nanobody clones of interest exhibit low affinities for their target antigens, which, together with their short half-life limit bioanalytical or therapeutic applications. Here, we developed a novel platform we named fenobody, in which a nanobody developed against H5N1 virus is displayed on the surface of ferritin in the form of a 24mer. We constructed a fenobody by substituting the fifth helix of ferritin with the nanobody. TEM analysis showed that nanobodies were displayed on the surface of ferritin in the form of 6 × 4 bundles, and that these clustered nanobodies are flexible for antigen binding in spatial structure. Comparing fenobodies with conventional nanobodies currently used revealed that the antigen binding apparent affinity of anti-H5N1 fenobody was dramatically increased (∼360-fold). Crucially, their half-life extension in a murine model was 10-fold longer than anti-H5N1 nanobody. In addition, we found that our fenobodies are highly expressed in Escherichia coli, and are both soluble and thermo-stable nanocages that self-assemble as 24-polymers. In conclusion, our results demonstrate that fenobodies have unique advantages over currently available systems for apparent affinity enhancement and half-life extension of nanobodies. Our fenobody system presents a suitable platform for various large-scale biotechnological processes and should greatly facilitate the application of nanobody technology in these areas.
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Affiliation(s)
- Kelong Fan
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology , Institute of Biophysics, Chinese Academy of Sciences , Beijing 100101 , China
| | - Bing Jiang
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology , Institute of Biophysics, Chinese Academy of Sciences , Beijing 100101 , China.,University of Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Zhe Guan
- State Key Laboratory of Membrane Biology, Laboratory of Molecular Biophysics, School of Life Sciences , Peking University , Beijing 100871 , China
| | - Jiuyang He
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology , Institute of Biophysics, Chinese Academy of Sciences , Beijing 100101 , China.,University of Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
| | - Dongling Yang
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology , Institute of Biophysics, Chinese Academy of Sciences , Beijing 100101 , China
| | - Ni Xie
- Institute of Translation Medicine , Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University , Shenzhen , 518035 , China
| | - Guohui Nie
- Institute of Translation Medicine , Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University , Shenzhen , 518035 , China
| | - Can Xie
- State Key Laboratory of Membrane Biology, Laboratory of Molecular Biophysics, School of Life Sciences , Peking University , Beijing 100871 , China
| | - Xiyun Yan
- Key Laboratory of Protein and Peptide Pharmaceuticals, CAS-University of Tokyo Joint Laboratory of Structural Virology and Immunology , Institute of Biophysics, Chinese Academy of Sciences , Beijing 100101 , China.,University of Chinese Academy of Sciences , 19A Yuquan Road , Beijing 100049 , China
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Shen R, Ye D, Huang Q, Li J, Wang Q, Fei J. An EGF receptor-targeting amphinase recombinant protein mediates anti-tumor activity in vitro and in vivo. Acta Biochim Biophys Sin (Shanghai) 2018; 50:391-398. [PMID: 29566107 DOI: 10.1093/abbs/gmy016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Indexed: 11/13/2022] Open
Abstract
Utilizing cytotoxic proteins linked to tumor targeting molecules as anti-tumor drugs is a promising approach. However, most cytotoxins derived from bacteria or plants have inherent problems such as large molecular weights and they trigger a strong immune system reaction, which leads to drug failure and serious side effects. Amphinase (Amph) is a ribonuclease with a low molecular weight that is found in northern leopard frog oocytes. It has strong cytotoxicity against tumor cell lines in vitro and weak immunogenicity in vivo, and is a promising candidate in the development of targeted drugs. Transforming growth factor-α (TGF-α) that binds to the epidermal growth factor receptor (EGFR) is being used as a targeting molecule for the treatment of EGFR high-expressing tumors. In this study, we expressed and purified a recombinant amphinase and its TGF-α fusion protein (AGT) separately from Escherichia coli. AGT exhibited more significant cytotoxicity in vitro on EGFR high-expressing tumor cell lines, and stronger anti-tumor effects in vivo. This fusion protein also exhibited unusual thermostability, low in vivo immunogenicity, and side effects. Our results provide a new entry point for the development of novel, highly efficient anti-tumor targeting biological agents with low immunogenicity.
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Affiliation(s)
- Ruling Shen
- School of Life Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Research Center for Model Organisms, Shanghai 201203, China
| | - Danrong Ye
- Shanghai Research Center for Model Organisms, Shanghai 201203, China
| | - Qin Huang
- Shanghai Research Center for Model Organisms, Shanghai 201203, China
| | - Jun Li
- Shanghai Research Center for Model Organisms, Shanghai 201203, China
| | - Qingcheng Wang
- Shanghai Research Center for Model Organisms, Shanghai 201203, China
| | - Jian Fei
- School of Life Science and Technology, Tongji University, Shanghai 200092, China
- Shanghai Research Center for Model Organisms, Shanghai 201203, China
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38
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Prantner AM, Yin C, Kamat K, Sharma K, Lowenthal AC, Madrid PB, Scholler N. Molecular Imaging of Mesothelin-Expressing Ovarian Cancer with a Human and Mouse Cross-Reactive Nanobody. Mol Pharm 2018; 15:1403-1411. [PMID: 29462558 DOI: 10.1021/acs.molpharmaceut.7b00789] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Mesothelin is an epithelial marker highly expressed at the cell surface of cancer cells from diverse origins, including ovarian and pancreatic adenocarcinomas and mesotheliomas. Previously, we identified and characterized an antimesothelin nanobody (NbG3a) for in vitro diagnostic applications. The main goal of this research was to establish the potential of NbG3a as a molecular imaging agent. Site-specific biotinylated NbG3a (bNbG3a) was bound to streptavidin-conjugated reagents for in vitro and in vivo assays. Initially, we performed microscale thermophoresis to determine the binding affinity between bNbG3a and human ( Kd = 46 ± 8 nM) or mouse ( Kd = 4.8 ± 0.4 nM) mesothelin protein. The human and mouse cross-reactivity was confirmed by in vivo optical imaging using bNbG3a bound to fluorescent streptavidin. We also localized the binding site of nNbG3a on human mesothelin using overlapping peptide scan. NbG3a recognized an epitope within residues 21-65 of the mature membrane bound form of human mesothelin, which is part of the N-terminal region of mesothelin that is important for interactions between mesothelin on peritoneal cells and CA125 on tumor cells. Next, the bNbG3a in vivo half-life after intravenous injection in healthy mice was estimated by ELISA assay to be 5.3 ± 1.3 min. In tumor-bearing animals, fluorescent bNbG3a accumulated in a subcutaneous ovarian xenograft (A1847) and in two syngeneic, orthotopic ovarian tumors (intraovary and intraperitoneal ID8) within an hour of intravenous injection that peaked by 4 h and persisted up to 48 h. MRI analysis of bNbG3a-targeted streptavidin-labeled iron oxides showed that the MRI signal intensity decreased 1 h after injection for a subcutaneous xenograft model of ovarian cancer for bNbG3a-labeled iron oxides compared to unlabeled iron oxides. The signal intensity differences continued up to the final time point at 24 h post injection. Finally, in vivo immunofluorescence 24 or 48 h after bNbG3a intravenous injection showed bNbG3a diffuse distribution of both xenograft and syngeneic ovarian tumors, with local areas of high concentration throughout A1847 human tumor. The data support the use of NbG3a for continued preclinical development and translation to human applications for cancers that overexpress mesothelin.
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Affiliation(s)
- Andrew M Prantner
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
| | - Catherine Yin
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
| | - Kalika Kamat
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
| | - Khushboo Sharma
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
| | - Andrew C Lowenthal
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
| | - Peter B Madrid
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
| | - Nathalie Scholler
- Biosciences Division , SRI International , 333 Ravenswood Avenue , Menlo Park , California 94025 , United States
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Clinically Relevant Radioactive Dose Formulation of 177
Lu-Labeled Cetuximab-Fab Fragment for Potential Use in Cancer Theranostics. ChemistrySelect 2018. [DOI: 10.1002/slct.201702224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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40
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Gonzalez-Sapienza G, Rossotti MA, Tabares-da Rosa S. Single-Domain Antibodies As Versatile Affinity Reagents for Analytical and Diagnostic Applications. Front Immunol 2017; 8:977. [PMID: 28871254 PMCID: PMC5566570 DOI: 10.3389/fimmu.2017.00977] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/31/2017] [Indexed: 12/23/2022] Open
Abstract
With just three CDRs in their variable domains, the antigen-binding site of camelid heavy-chain-only antibodies (HcAbs) has a more limited structural diversity than that of conventional antibodies. Even so, this does not seem to limit their specificity and high affinity as HcAbs against a broad range of structurally diverse antigens have been reported. The recombinant form of their variable domain [nanobody (Nb)] has outstanding properties that make Nbs, not just an alternative option to conventional antibodies, but in many cases, these properties allow them to reach analytical or diagnostic performances that cannot be accomplished with conventional antibodies. These attributes include comprehensive representation of the immune specificity in display libraries, easy adaptation to high-throughput screening, exceptional stability, minimal size, and versatility as affinity building block. Here, we critically reviewed each of these properties and highlight their relevance with regard to recent developments in different fields of immunosensing applications.
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Affiliation(s)
| | - Martín A Rossotti
- Cátedra de Inmunología, Facultad de Química, Instituto de Higiene, UDELAR, Montevideo, Uruguay
| | - Sofía Tabares-da Rosa
- Cátedra de Inmunología, Facultad de Química, Instituto de Higiene, UDELAR, Montevideo, Uruguay
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41
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Bedford R, Tiede C, Hughes R, Curd A, McPherson MJ, Peckham M, Tomlinson DC. Alternative reagents to antibodies in imaging applications. Biophys Rev 2017; 9:299-308. [PMID: 28752365 PMCID: PMC5578921 DOI: 10.1007/s12551-017-0278-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 07/06/2017] [Indexed: 12/21/2022] Open
Abstract
Antibodies have been indispensable tools in molecular biology, biochemistry and medical research. However, a number of issues surrounding validation, specificity and batch variation of commercially available antibodies have prompted research groups to develop novel non-antibody binding reagents. The ability to select highly specific monoclonal non-antibody binding proteins without the need for animals, the ease of production and the ability to site-directly label has enabled a wide variety of applications to be tested, including imaging. In this review, we discuss the success of a number of non-antibody reagents in imaging applications, including the recently reported Affimer.
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Affiliation(s)
- R Bedford
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK
| | - C Tiede
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK
| | - R Hughes
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK
| | - A Curd
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK
| | - M J McPherson
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK
| | - Michelle Peckham
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK.
| | - Darren C Tomlinson
- School of Molecular and Cellular Biology, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK.
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SGM-101: An innovative near-infrared dye-antibody conjugate that targets CEA for fluorescence-guided surgery. Surg Oncol 2017; 26:153-162. [DOI: 10.1016/j.suronc.2017.03.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/06/2017] [Accepted: 03/06/2017] [Indexed: 12/31/2022]
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Liu C, Zhang X, Song Y, Wang Y, Zhang F, Zhang Y, Zhang Y, Lan X. SPECT and fluorescence imaging of vulnerable atherosclerotic plaque with a vascular cell adhesion molecule 1 single-chain antibody fragment. Atherosclerosis 2016; 254:263-270. [PMID: 27680307 DOI: 10.1016/j.atherosclerosis.2016.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 08/02/2016] [Accepted: 09/06/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND AND AIMS Early detection and evaluation of vulnerable atherosclerotic plaque are important for risk stratification and timely intervention, and vascular cell adhesion molecule 1 (VCAM1) assists in adhesion and recruitment of inflammatory cells to vulnerable lesions. We labeled a single-chain variable fragment (scFv) of VCAM1 with 99mtechnetium (99mTc) and fluorescent markers to investigate its potential utility in detecting vulnerable plaques in animal models of atherosclerosis. METHODS We labeled VCAM1 scFv with 99mTc and cyanine5 (CY5) and evaluated the probes on apolipoprotein E gene-deficient mice and New Zealand White rabbits with induced atherosclerosis. Histopathology and Western blot examinations confirmed atherosclerotic plaque and VCAM1 expression in the aortas. In vivo biodistribution of 99mTc-scFv-VCAM1 was studied. Abdominal organs of mice were removed after CY5-scFv-VCAM1 administration for aortic fluorescence imaging. Rabbits SPECT imaging of 99mTc-scFv-VCAM1 was performed and autoradiography (ARG) of the aortas was checked to confirm the tracer uptake. RESULTS The radiochemical purity of 99mTc-scFv-VCAM1 was 98.72± 1.04% (n = 5) and its specific activity was 7.8 MBq/μg. Biodistribution study indicated predominant probe clearance by kidneys. In fluorescence imaging, stronger signal from CY5-scFv-VCAM1 in the aorta was observed in atherosclerotic mice than that in controls. SPECT imaging with 99mTc-scFv-VCAM1 showed tracer uptake in the abdominal aorta and the aortic arch of atherosclerotic animals. ARG confirmed tracer uptake in the aortas of atherosclerotic rabbits, with higher uptake ratios of aortic arch/descending aorta in experimental animals (4.45 ± 0.63, n = 5) than controls (1.12 ± 0.15, n = 5; p < 0.05). CONCLUSIONS SPECT and fluorescence imaging results showed the feasibility and effectiveness of detecting vulnerable plaque with scFv of VCAM1, indicating its potential for early diagnosis and evaluation of atherosclerosis.
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Affiliation(s)
- Chunbao Liu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiao Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yiling Song
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yichun Wang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Fengzhen Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yingying Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yongxue Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China; Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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44
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Saccomano M, Dullin C, Alves F, Napp J. Preclinical evaluation of near-infrared (NIR) fluorescently labeled cetuximab as a potential tool for fluorescence-guided surgery. Int J Cancer 2016; 139:2277-89. [PMID: 27428782 DOI: 10.1002/ijc.30277] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/01/2016] [Accepted: 06/23/2016] [Indexed: 02/06/2023]
Abstract
The high rate of recurrence in patients with pancreatic ductal adenocarcinoma (PDAC) could be reduced by supporting the surgeons in discriminating healthy from diseased tissues with intraoperative fluorescence-guidance. Here, we studied the suitability of Cetuximab, a therapeutic monoclonal antibody targeting the human epidermal growth factor receptor (EGFR), near-infrared (NIR) fluorescently labeled as a new tool for fluorescence-guided surgery. Distribution and binding of systemically injected Cetuximab Alexa Fluor 647 conjugate (Cetux-Alexa-647) and the co-injected control human IgG Alexa Fluor 750 conjugate (hIgG-Alexa-750) was studied over 48 h by NIR fluorescence imaging in mice bearing human orthotopic AsPC-1 and MIA PaCa-2 PDAC tumors. Cetux-Alexa-647, but not the control hIgG-Alexa-750 fluorescence, was specifically detected in vivo in both primary pancreatic tumors with maximum fluorescence intensities at 24 h, and in metastases of AsPC-1 tumors as small as 1 mm. Lifetime analysis and NIR fluorescence microscopy of tumor sections confirmed the binding specificity of Cetux-Alexa-647 to PDAC cells. Comparable results were obtained with Cetuximab conjugated to Alexa Fluor 750 dye (Cetux-Alexa-750). Fluorescence-guided dissection, performed 24 h after injection of Cetuximab conjugated to IRDye 800CW (Cetux-800CW), enabled a real-time delineation of AsPC-1 tumor margins, and small metastases. Odyssey scans revealed that only the vital part of the tumor, but not the necrotic part was stained with Cetux-800CW. NIR fluorescently labeled Cetuximab may be a promising tool that can be applied for fluorescence-guided surgery to visualize tumor margins and metastatic sites in order to allow a precise surgical resection.
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Affiliation(s)
- Mara Saccomano
- Department of Molecular Biology of Neuronal Signals, Max-Planck-Institute of Experimental Medicine, Göttingen, Germany
| | - Christian Dullin
- Institute of Interventional and Diagnostic Radiology, University Medical Center Göttingen, Göttingen, Germany
| | - Frauke Alves
- Department of Molecular Biology of Neuronal Signals, Max-Planck-Institute of Experimental Medicine, Göttingen, Germany.,Institute of Interventional and Diagnostic Radiology, University Medical Center Göttingen, Göttingen, Germany.,Department of Haematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Joanna Napp
- Department of Molecular Biology of Neuronal Signals, Max-Planck-Institute of Experimental Medicine, Göttingen, Germany. .,Institute of Interventional and Diagnostic Radiology, University Medical Center Göttingen, Göttingen, Germany. .,Department of Haematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany.
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Steeland S, Vandenbroucke RE, Libert C. Nanobodies as therapeutics: big opportunities for small antibodies. Drug Discov Today 2016; 21:1076-113. [DOI: 10.1016/j.drudis.2016.04.003] [Citation(s) in RCA: 329] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/26/2016] [Accepted: 04/04/2016] [Indexed: 12/28/2022]
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