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Mező G, Gomena J, Ranđelović I, Dókus EL, Kiss K, Pethő L, Schuster S, Vári B, Vári-Mező D, Lajkó E, Polgár L, Kőhidai L, Tóvári J, Szabó I. Oxime-Linked Peptide-Daunomycin Conjugates as Good Tools for Selection of Suitable Homing Devices in Targeted Tumor Therapy: An Overview. Int J Mol Sci 2024; 25:1864. [PMID: 38339141 PMCID: PMC10855781 DOI: 10.3390/ijms25031864] [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: 12/21/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Chemotherapy is still one of the main therapeutic approaches in cancer therapy. Nevertheless, its poor selectivity causes severe toxic side effects that, together with the development of drug resistance in tumor cells, results in a limitation for its application. Tumor-targeted drug delivery is a possible choice to overcome these drawbacks. As well as monoclonal antibodies, peptides are promising targeting moieties for drug delivery. However, the development of peptide-drug conjugates (PDCs) is still a big challenge. The main reason is that the conjugates have to be stable in circulation, but the drug or its active metabolite should be released efficiently in the tumor cells. For this purpose, suitable linker systems are needed that connect the drug molecule with the homing peptide. The applied linker systems are commonly categorized as cleavable and non-cleavable linkers. Both the groups possess advantages and disadvantages that are summarized briefly in this manuscript. Moreover, in this review paper, we highlight the benefit of oxime-linked anthracycline-peptide conjugates in the development of PDCs. For instance, straightforward synthesis as well as a conjugation reaction proceed in excellent yields, and the autofluorescence of anthracyclines provides a good tool to select the appropriate homing peptides. Furthermore, we demonstrate that these conjugates can be used properly in in vivo studies. The results indicate that the oxime-linked PDCs are potential candidates for targeted tumor therapy.
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Affiliation(s)
- Gábor Mező
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Institute of Chemistry, ELTE, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Jacopo Gomena
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Institute of Chemistry, ELTE, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Ivan Ranđelović
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
| | - Endre Levente Dókus
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
| | - Krisztina Kiss
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Lilla Pethő
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
| | - Sabine Schuster
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Institute of Chemistry, ELTE, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Balázs Vári
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Diána Vári-Mező
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Eszter Lajkó
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1089 Budapest, Hungary; (E.L.); (L.P.); (L.K.)
| | - Lívia Polgár
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1089 Budapest, Hungary; (E.L.); (L.P.); (L.K.)
| | - László Kőhidai
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1089 Budapest, Hungary; (E.L.); (L.P.); (L.K.)
| | - József Tóvári
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Ildikó Szabó
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
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Popa Ilie IR, Georgescu CE. Immunotherapy in Gastroenteropancreatic Neuroendocrine Neoplasia. Neuroendocrinology 2023; 113:262-278. [PMID: 34348340 DOI: 10.1159/000518106] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/25/2021] [Indexed: 11/19/2022]
Abstract
The worldwide prevalence and incidence of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) and of NENs, in general, have been increasing recently. While valuing the considerable progress made in the treatment strategies for GEP-NEN in recent years, patients with advanced, metastasized disease still have a poor prognosis, which calls for urgent novel therapies. The immune system plays a dual role: both host-protecting and "tumor-promoting." Hence, immunotherapy is potentially a powerful weapon to help NEN patients. However, although recent successes with checkpoint inhibitors have shown that enhancing antitumor immunity can be effective, the dynamic nature of the immunosuppressive tumor microenvironment presents significant hurdles to the broader application of these therapies. Studies led to their approval in NEN of the lung and Merkel cell carcinoma, whereas results in other settings have not been so encouraging. Oncolytic viruses can selectively infect and destroy cancer cells, acting as an in situ cancer vaccine. Moreover, they can remodel the tumor microenvironment toward a T cell-inflamed phenotype. Oncolytic virotherapy has been proposed as an ablative and immunostimulatory treatment strategy for solid tumors that are resistant to checkpoint inhibitors alone. Future efforts should focus on finding the best way to include immunotherapy in the GEP-NEN treatment scenario. In this context, this study aims at providing a comprehensive generalized review of the immune checkpoint blockade and the oncolytic virotherapy use in GEP-NENs that might improve GEP-NEN treatment strategies.
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Affiliation(s)
- Ioana Rada Popa Ilie
- Department of Endocrinology, "Iuliu-Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Carmen Emanuela Georgescu
- Department of Endocrinology, "Iuliu-Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
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3
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Phage Display-Based Homing Peptide-Daunomycin Conjugates for Selective Drug Targeting to PANC-1 Pancreatic Cancer. Pharmaceutics 2020; 12:pharmaceutics12060576. [PMID: 32580307 PMCID: PMC7355684 DOI: 10.3390/pharmaceutics12060576] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/11/2020] [Accepted: 06/17/2020] [Indexed: 12/22/2022] Open
Abstract
The Pancreatic Ductal Adenocarcinoma (PDAC) is one of the most aggressive and dangerous cancerous diseases, leading to a high rate of mortality. Therefore, the development of new, more efficient treatment approaches is necessary to cure this illness. Peptide-based drug targeting provides a new tool for this purpose. Previously, a hexapeptide Cys-Lys-Ala-Ala-Lys-Asn (CKAAKN) was applied efficiently as the homing device for drug-loaded nanostructures in PDAC cells. In this research, Cys was replaced by Ser in the sequence and this new SKAAKN targeting moiety was used in conjugates containing daunomycin (Dau). Five different structures were developed and tested. The results indicated that linear versions with one Dau were not effective on PANC-1 cells in vitro; however, branched conjugates with two Dau molecules showed significant antitumor activity. Differences in the antitumor effect of the conjugates could be explained with the different cellular uptake and lysosomal degradation. The most efficient conjugate was Dau=Aoa-GFLG-K(Dau=Aoa)SKAAKN-OH (conjugate 4) that also showed significant tumor growth inhibition on s.c. implanted PANC-1 tumor-bearing mice with negligible side effects. Our novel results suggest that peptide-based drug delivery systems could be a promising tool for the treatment of pancreatic cancers.
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Goswami R, Subramanian G, Silayeva L, Newkirk I, Doctor D, Chawla K, Chattopadhyay S, Chandra D, Chilukuri N, Betapudi V. Gene Therapy Leaves a Vicious Cycle. Front Oncol 2019; 9:297. [PMID: 31069169 PMCID: PMC6491712 DOI: 10.3389/fonc.2019.00297] [Citation(s) in RCA: 213] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/01/2019] [Indexed: 12/14/2022] Open
Abstract
The human genetic code encrypted in thousands of genes holds the secret for synthesis of proteins that drive all biological processes necessary for normal life and death. Though the genetic ciphering remains unchanged through generations, some genes get disrupted, deleted and or mutated, manifesting diseases, and or disorders. Current treatment options—chemotherapy, protein therapy, radiotherapy, and surgery available for no more than 500 diseases—neither cure nor prevent genetic errors but often cause many side effects. However, gene therapy, colloquially called “living drug,” provides a one-time treatment option by rewriting or fixing errors in the natural genetic ciphering. Since gene therapy is predominantly a viral vector-based medicine, it has met with a fair bit of skepticism from both the science fraternity and patients. Now, thanks to advancements in gene editing and recombinant viral vector development, the interest of clinicians and pharmaceutical industries has been rekindled. With the advent of more than 12 different gene therapy drugs for curing cancer, blindness, immune, and neuronal disorders, this emerging experimental medicine has yet again come in the limelight. The present review article delves into the popular viral vectors used in gene therapy, advances, challenges, and perspectives.
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Affiliation(s)
- Reena Goswami
- Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States
| | - Gayatri Subramanian
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Liliya Silayeva
- Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States
| | - Isabelle Newkirk
- Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States
| | - Deborah Doctor
- Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States
| | - Karan Chawla
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Saurabh Chattopadhyay
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Dhyan Chandra
- Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Nageswararao Chilukuri
- Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States
| | - Venkaiah Betapudi
- Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States.,Department of Physiology and Biophysics, Case Western Reserve University, Cleveland, OH, United States
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Stepanenko AA, Chekhonin VP. Tropism and transduction of oncolytic adenovirus 5 vectors in cancer therapy: Focus on fiber chimerism and mosaicism, hexon and pIX. Virus Res 2018; 257:40-51. [PMID: 30125593 DOI: 10.1016/j.virusres.2018.08.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 02/09/2023]
Abstract
The cellular internalization (infection of cells) of adenovirus 5 (Ad5) is mediated by the initial attachment of the globular knob domain of the capsid fiber protein to the cell surface coxsackievirus and adenovirus receptor (CAR), then followed by the interaction of the virus penton base proteins with cellular integrins. In tumors, there is a substantial intra- and intertumoral variability in CAR expression. The CAR-negative cells generally exhibit very low infectability. Since the fiber knob is a primary mediator of Ad5 binding to the cell surface, improved infectivity of Ad5-based vectors as oncolytic agents may be achieved via genetic modifications of this domain. The strategies to modify or broaden tropism and increase transduction efficiency of Ad5-based vectors include: 1) an incorporation of a targeting peptide into the fiber knob domain (the HI loop and/or C-terminus); 2) fiber knob serotype switching, or pseudotyping, by constructing chimeric fibers consisting of the knob domain derived from an alternate serotype (e.g., Ad5/3 or Ad5/35 chimeras), which binds to receptor(s) other than CAR (e.g., desmoglein 2/DSG2 and/or CD46); 3) "fiber complex mosaicism", an approach of combining serotype chimerism with peptide ligand(s) incorporation (e.g., Ad5/3-RGD); 4) "dual fiber mosaicism" by expressing two separate fibers with distinct receptor-binding capabilities on the same viral particle (e.g., Ad5-5/3 or Ad5-5/σ1); 5) fiber xenotyping by replacing the knob and shaft domains of wild-type Ad5 fiber protein with fibritin trimerization domain of T4 bacteriophage or σ1 attachment protein of reovirus. Other genetic approaches to increase the CAR-independent transduction efficiency include insertion of a targeting peptide into the hypervariable region of the capsid protein hexon or fusion to the C-terminus of pIX. Finally, we consider a yet unsolved molecular mechanism of liver targeting by Ad5-based vectors (CAR-, integrin-, fiber shaft KKTK motif-, and hepatic heparan sulfate glycosaminoglycans-independent, but fiber-, hexon- and blood factor X-dependent).
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Affiliation(s)
- Aleksei A Stepanenko
- Department of Fundamental and Applied Neurobiology, V.P. Serbsky Federal Medical Research Center of Psychiatry and Narcology, The Ministry of Health of the Russian Federation, Kropotkinsky lane 23, 119034 Moscow, Russia.
| | - Vladimir P Chekhonin
- Department of Fundamental and Applied Neurobiology, V.P. Serbsky Federal Medical Research Center of Psychiatry and Narcology, The Ministry of Health of the Russian Federation, Kropotkinsky lane 23, 119034 Moscow, Russia; Department of Medical Nanobiotechnologies, Medico-Biological Faculty, N.I. Pirogov Russian National Research Medical University, The Ministry of Health of the Russian Federation, Ostrovitianov str. 1, 117997 Moscow, Russia.
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6
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Yamamoto Y, Nagasato M, Rin Y, Henmi M, Ino Y, Yachida S, Ohki R, Hiraoka N, Tagawa M, Aoki K. Strong antitumor efficacy of a pancreatic tumor-targeting oncolytic adenovirus for neuroendocrine tumors. Cancer Med 2017; 6:2385-2397. [PMID: 28941156 PMCID: PMC5633550 DOI: 10.1002/cam4.1185] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/05/2017] [Accepted: 08/12/2017] [Indexed: 12/13/2022] Open
Abstract
Although oncolytic adenoviruses are promising cancer therapy agents, for effective oncolytic activity, viruses need to specifically infect and effectively replicate in cancer cells but not in normal cells. We have previously identified a pancreatic cancer-targeting ligand, SYENFSA (SYE), by screening an adenovirus library displaying random peptides against human pancreatic cancer cells and reported that a survivin promoter-regulated adenovirus, displaying the SYE ligand (AdSur-SYE), provided effective oncolysis of pancreatic ductal adenocarcinoma (PDAC) in a preclinical study. As we examined the infectivity of AdSur-SYE in human surgical specimens of various pancreatic tumors, we unexpectedly found that AdSur-SYE showed high gene transduction efficiency for pancreatic neuroendocrine tumors (PNETs) as well as for PDAC, 9.1- and 6.2-fold, respectively, compared to that of the nontargeting virus (AdSur). The infectivity of both vectors was almost the same in other cancers and organs such as the pancreas. Immunostaining indicated that the cells infected with AdSur-SYE were PNET cells but not stromal cells. AdSur-SYE showed a significantly higher oncolytic potency than that of AdSur in human PNET cell lines, and intratumoral infection with AdSur-SYE completely diminished subcutaneous tumors in a murine model, in which AdSur-SYE effectively proliferated and spread. AdSur-SYE exerted a stronger oncolytic effect in primary PNET cells cocultured with mouse embryonic fibroblasts than AdSur did. Thus, AdSur-SYE shows promise as a next-generation therapy for PNET.
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Affiliation(s)
- Yuki Yamamoto
- Division of Molecular and Cellular MedicineNational Cancer Center Research InstituteTokyoJapan
- NCC Cancer ScienceTokyo Medical and Dental UniversityTokyoJapan
| | - Masaki Nagasato
- Division of Molecular and Cellular MedicineNational Cancer Center Research InstituteTokyoJapan
- NCC Cancer ScienceTokyo Medical and Dental UniversityTokyoJapan
| | - Yosei Rin
- Division of Molecular and Cellular MedicineNational Cancer Center Research InstituteTokyoJapan
- NCC Cancer ScienceTokyo Medical and Dental UniversityTokyoJapan
| | - Marina Henmi
- Division of Molecular and Cellular MedicineNational Cancer Center Research InstituteTokyoJapan
- NCC Cancer ScienceTokyo Medical and Dental UniversityTokyoJapan
| | - Yoshinori Ino
- Molecular PathologyNational Cancer Center Research InstituteTokyoJapan
| | - Shinichi Yachida
- Cancer GenomicsNational Cancer Center Research InstituteTokyoJapan
| | - Rieko Ohki
- Rare Cancer ResearchNational Cancer Center Research InstituteTokyoJapan
| | - Nobuyoshi Hiraoka
- Molecular PathologyNational Cancer Center Research InstituteTokyoJapan
| | - Masatoshi Tagawa
- Division of Pathology and Cell TherapyChiba Cancer Center Research InstituteChibaJapan
| | - Kazunori Aoki
- Division of Molecular and Cellular MedicineNational Cancer Center Research InstituteTokyoJapan
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Yamamoto Y, Nagasato M, Yoshida T, Aoki K. Recent advances in genetic modification of adenovirus vectors for cancer treatment. Cancer Sci 2017; 108:831-837. [PMID: 28266780 PMCID: PMC5448613 DOI: 10.1111/cas.13228] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/27/2017] [Accepted: 03/01/2017] [Indexed: 12/11/2022] Open
Abstract
Adenoviruses are widely used to deliver genes to a variety of cell types and have been used in a number of clinical trials for gene therapy and oncolytic virotherapy. However, several concerns must be addressed for the clinical use of adenovirus vectors. Selective delivery of a therapeutic gene by adenovirus vectors to target cancer is precluded by the widespread distribution of the primary cellular receptors. The systemic administration of adenoviruses results in hepatic tropism independent of the primary receptors. Adenoviruses induce strong innate and acquired immunity in vivo. Furthermore, several modifications to these vectors are necessary to enhance their oncolytic activity and ensure patient safety. As such, the adenovirus genome has been engineered to overcome these problems. The first part of the present review outlines recent progress in the genetic modification of adenovirus vectors for cancer treatment. In addition, several groups have recently developed cancer-targeting adenovirus vectors by using libraries that display random peptides on a fiber knob. Pancreatic cancer-targeting sequences have been isolated, and these oncolytic vectors have been shown by our group to be associated with a higher gene transduction efficiency and more potent oncolytic activity in cell lines, murine models, and surgical specimens of pancreatic cancer. In the second part of this review, we explain that combining cancer-targeting strategies can be a promising approach to increase the clinical usefulness of oncolytic adenovirus vectors.
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Affiliation(s)
- Yuki Yamamoto
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Masaki Nagasato
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Teruhiko Yoshida
- Division of Genetics, National Cancer Center Research Institute, Tokyo, Japan
| | - Kazunori Aoki
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
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Sieber T, Hare E, Hofmann H, Trepel M. Biomathematical description of synthetic peptide libraries. PLoS One 2015; 10:e0129200. [PMID: 26042419 PMCID: PMC4456392 DOI: 10.1371/journal.pone.0129200] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 05/07/2015] [Indexed: 12/28/2022] Open
Abstract
Libraries of randomised peptides displayed on phages or viral particles are essential tools in a wide spectrum of applications. However, there is only limited understanding of a library's fundamental dynamics and the influences of encoding schemes and sizes on their quality. Numeric properties of libraries, such as the expected number of different peptides and the library's coverage, have long been in use as measures of a library's quality. Here, we present a graphical framework of these measures together with a library's relative efficiency to help to describe libraries in enough detail for researchers to plan new experiments in a more informed manner. In particular, these values allow us to answer-in a probabilistic fashion-the question of whether a specific library does indeed contain one of the "best" possible peptides. The framework is implemented in a web-interface based on two packages, discreteRV and peptider, to the statistical software environment R. We further provide a user-friendly web-interface called PeLiCa (Peptide Library Calculator, http://www.pelica.org), allowing scientists to plan and analyse their peptide libraries.
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Affiliation(s)
- Timo Sieber
- Department of Oncology and Hematology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eric Hare
- Department of Statistics, Iowa State University, Ames, IA, USA
| | - Heike Hofmann
- Department of Statistics, Iowa State University, Ames, IA, USA
- * E-mail:
| | - Martin Trepel
- Department of Hematology and Oncology, Augsburg Medical Center, Interdisciplinary Cancer Center, Augsburg, Germany
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Guenther CM, Kuypers BE, Lam MT, Robinson TM, Zhao J, Suh J. Synthetic virology: engineering viruses for gene delivery. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 6:548-58. [PMID: 25195922 PMCID: PMC4227300 DOI: 10.1002/wnan.1287] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/16/2014] [Accepted: 07/20/2014] [Indexed: 12/13/2022]
Abstract
The success of gene therapy relies heavily on the performance of vectors that can effectively deliver transgenes to desired cell populations. As viruses have evolved to deliver genetic material into cells, a prolific area of research has emerged over the last several decades to leverage the innate properties of viruses as well as to engineer new features into them. Specifically, the field of synthetic virology aims to capitalize on knowledge accrued from fundamental virology research in order to design functionally enhanced gene delivery vectors. The enhanced viral vectors, or 'bionic' viruses, feature engineered components, or 'parts', that are natural (intrinsic to viruses or from other organisms) and synthetic (such as man-made polymers or inorganic nanoparticles). Various design strategies--rational, combinatorial, and pseudo-rational--have been pursued to create the hybrid viruses. The gene delivery vectors of the future will likely criss-cross the boundaries between natural and synthetic domains to harness the unique strengths afforded by the various functional parts that can be grafted onto virus capsids. Such research endeavors will further expand and enable enhanced control over the functional capacity of these nanoscale devices for biomedicine.
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Affiliation(s)
| | - Brianna E. Kuypers
- Systems, Synthetic, and Physical Biology Program, Rice University, Houston, TX, 77005
| | - Michael T. Lam
- Department of Bioengineering, Rice University, Houston, TX, 77005
| | | | - Julia Zhao
- Department of Chemistry, Rice University, Houston, TX, 77005
| | - Junghae Suh
- Department of Bioengineering, Rice University, Houston, TX, 77005
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Duskey JT, Rice KG. Nanoparticle ligand presentation for targeting solid tumors. AAPS PharmSciTech 2014; 15:1345-54. [PMID: 24927668 PMCID: PMC4179653 DOI: 10.1208/s12249-014-0143-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 05/07/2014] [Indexed: 01/10/2023] Open
Abstract
Among the many scientific advances to come from the study of nanoscience, the development of ligand-targeted nanoparticles to eliminate solid tumors is predicted to have a major impact on human health. There are many reports describing novel designs and testing of targeted nanoparticles to treat cancer. While the principles of the technology are well demonstrated in controlled lab experiments, there are still many hurdles to overcome for the science to mature into truly efficacious targeted nanoparticles that join the arsenal of agents currently used to treat cancer in humans. One of these hurdles is overcoming unwanted biodistribution to the liver while maximizing delivery to the tumor. This almost certainly requires advances in both nanoparticle stealth technology and targeting. Currently, it continues to be a challenge to control the loading of ligands onto polyethylene glycol (PEG) to achieve maximal targeting. Nanoparticle cellular uptake and subcellular targeting of genes and siRNA also remain a challenge. This review examines the types of ligands that have been most often used to target nanoparticles to solid tumors. As the science matures over the coming decade, careful control over ligand presentation on nanoparticles of precise size, shape, and charge will likely play a major role in achieving success.
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Affiliation(s)
- Jason T. Duskey
- Division of Medicinal and Natural Products Chemistry, College of Pharmacy, University of Iowa, Iowa City, Iowa 52242 USA
| | - Kevin G. Rice
- Division of Medicinal and Natural Products Chemistry, College of Pharmacy, University of Iowa, Iowa City, Iowa 52242 USA
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11
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Yamamoto Y, Hiraoka N, Goto N, Rin Y, Miura K, Narumi K, Uchida H, Tagawa M, Aoki K. A targeting ligand enhances infectivity and cytotoxicity of an oncolytic adenovirus in human pancreatic cancer tissues. J Control Release 2014; 192:284-93. [PMID: 25108153 DOI: 10.1016/j.jconrel.2014.07.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/12/2014] [Accepted: 07/29/2014] [Indexed: 12/13/2022]
Abstract
The addition of a targeting strategy is necessary to enhance oncolysis and secure safety of a conditionally replicative adenovirus (CRAd). We have constructed an adenovirus library displaying random peptides on the fiber, and have successfully identified a pancreatic cancer-targeting ligand (SYENFSA). Here, the usefulness of cancer-targeted CRAd for pancreatic cancer was examined as a preclinical study. First, we constructed a survivin promoter-regulated CRAd expressing enhanced green fluorescent protein gene (EGFP), which displayed the identified targeting ligand (AdSur-SYE). The AdSur-SYE resulted in higher gene transduction efficiency and oncolytic potency than the untargeted CRAd (AdSur) in several pancreatic cancer cell lines. An intratumoral injection of AdSur-SYE significantly suppressed the growth of subcutaneous tumors, in which AdSur-SYE effectively proliferated and spread. An ectopic infection in adjacent tissues and organs of intratumorally injected AdSur-SYE was decreased compared with AdSur. Then, to examine whether the targeting ligand actually enhanced the infectivity of CRAd in human pancreatic cancer tissues, tumor cells prepared from surgical specimens were infected with viruses. The AdSur-SYE increased gene transduction efficiency 6.4-fold higher than did AdSur in single cells derived from human pancreatic cancer, whereas the infectivity of both vectors was almost the same in the pancreas and other cancers. Immunostaining showed that most EGFP(+) cells were cytokeratin-positive in the sliced tissues, indicating that pancreatic cancer cells but not stromal cells were injected with AdSur-SYE. AdSur-SYE resulted in a stronger oncolysis in the primary pancreatic cancer cells co-cultured with mouse embryonic fibroblasts than AdSur did. CRAd in combination with a tumor-targeting ligand is promising as a next-generation of oncolytic virotherapy for pancreatic cancer.
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Affiliation(s)
- Yuki Yamamoto
- Division of Gene and Immune Medicine, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; Laboratory of Oncology, Tokyo University of Pharmacy and Life Sciences, 432-1 Horinouchi, Hachioji, Tokyo 192-0355, Japan
| | - Nobuyoshi Hiraoka
- Division of Molecular Pathology, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Naoko Goto
- Division of Gene and Immune Medicine, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Yosei Rin
- Division of Gene and Immune Medicine, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; Laboratory of Oncology, Tokyo University of Pharmacy and Life Sciences, 432-1 Horinouchi, Hachioji, Tokyo 192-0355, Japan
| | - Kazuki Miura
- Division of Gene and Immune Medicine, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; Laboratory of Oncology, Tokyo University of Pharmacy and Life Sciences, 432-1 Horinouchi, Hachioji, Tokyo 192-0355, Japan
| | - Kenta Narumi
- Division of Gene and Immune Medicine, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
| | - Hiroaki Uchida
- Laboratory of Oncology, Tokyo University of Pharmacy and Life Sciences, 432-1 Horinouchi, Hachioji, Tokyo 192-0355, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona-chou, Chuo-ku, Chiba 260-0801, Japan
| | - Kazunori Aoki
- Division of Gene and Immune Medicine, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
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Peptide-based technologies to alter adenoviral vector tropism: ways and means for systemic treatment of cancer. Viruses 2014; 6:1540-63. [PMID: 24699364 PMCID: PMC4014709 DOI: 10.3390/v6041540] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 03/15/2014] [Accepted: 03/20/2014] [Indexed: 12/11/2022] Open
Abstract
Due to the fundamental progress in elucidating the molecular mechanisms of human diseases and the arrival of the post-genomic era, increasing numbers of therapeutic genes and cellular targets are available for gene therapy. Meanwhile, the most important challenge is to develop gene delivery vectors with high efficiency through target cell selectivity, in particular under in situ conditions. The most widely used vector system to transduce cells is based on adenovirus (Ad). Recent endeavors in the development of selective Ad vectors that target cells or tissues of interest and spare the alteration of all others have focused on the modification of the virus broad natural tropism. A popular way of Ad targeting is achieved by directing the vector towards distinct cellular receptors. Redirecting can be accomplished by linking custom-made peptides with specific affinity to cellular surface proteins via genetic integration, chemical coupling or bridging with dual-specific adapter molecules. Ideally, targeted vectors are incapable of entering cells via their native receptors. Such altered vectors offer new opportunities to delineate functional genomics in a natural environment and may enable efficient systemic therapeutic approaches. This review provides a summary of current state-of-the-art techniques to specifically target adenovirus-based gene delivery vectors.
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Yamamoto Y, Goto N, Miura K, Narumi K, Ohnami S, Uchida H, Miura Y, Yamamoto M, Aoki K. Development of a novel efficient method to construct an adenovirus library displaying random peptides on the fiber knob. Mol Pharm 2014; 11:1069-74. [PMID: 24380399 DOI: 10.1021/mp4005854] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Redirection of adenovirus vectors by engineering the capsid-coding region has shown limited success because proper targeting ligands are generally unknown. To overcome this limitation, we constructed an adenovirus library displaying random peptides on the fiber knob, and its screening led to successful selections of several particular targeted vectors. In the previous library construction method, the full length of an adenoviral genome was generated by a Cre-lox mediated in vitro recombination between a fiber-modified plasmid library and the enzyme-digested adenoviral DNA/terminal protein complex (DNA-TPC) before transfection to the producer cells. In this system, the procedures were complicated and time-consuming, and approximately 30% of the vectors in the library were defective with no displaying peptide. These may hinder further extensive exploration of cancer-targeting vectors. To resolve these problems, in this study, we developed a novel method with the transfection of a fiber-modified plasmid library and a fiberless adenoviral DNA-TPC in Cre-expressing 293 cells. The use of in-cell Cre recombination and fiberless adenovirus greatly simplified the library-making steps. The fiberless adenovirus was useful in suppressing the expansion of unnecessary adenovirus vectors. In addition, the complexity of the library was more than a 10(4) level in one well in a 6-well dish, which was 10-fold higher than that of the original method. The results demonstrated that this novel method is useful in producing a high quality live adenovirus library, which could facilitate the development of targeted adenovirus vectors for a variety of applications in medicine.
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Affiliation(s)
- Yuki Yamamoto
- Division of Gene and Immune Medicine, National Cancer Center Research Institute , 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan
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The novel fusion protein sTRAIL-TMTP1 exhibits a targeted inhibition of primary tumors and metastases. J Mol Med (Berl) 2013; 92:165-75. [DOI: 10.1007/s00109-013-1093-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 09/08/2013] [Accepted: 10/07/2013] [Indexed: 10/26/2022]
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