1
|
Modeling the Efficacy of Oncolytic Adenoviruses In Vitro and In Vivo: Current and Future Perspectives. Cancers (Basel) 2020; 12:cancers12030619. [PMID: 32155969 PMCID: PMC7139921 DOI: 10.3390/cancers12030619] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 02/06/2023] Open
Abstract
Oncolytic adenoviruses (OAd) selectively target and lyse tumor cells and enhance anti- tumor immune responses. OAds have been used as promising cancer gene therapies for many years and there are a multitude of encouraging pre-clinical studies. However, translating OAd therapies to the clinic has had limited success, in part due to the lack of realistic pre-clinical models to rigorously test the efficacy of OAds. Solid tumors have a heterogenous and hostile microenvironment that provides many barriers to OAd treatment, including structural and immunosuppressive components that cannot be modeled in two-dimensional tissue culture. To replicate these characteristics and bridge the gap between pre-clinical and clinical success, studies must test OAd therapy in three-dimensional culture and animal models. This review focuses on current methods to test OAd efficacy in vitro and in vivo and the development of new model systems to test both oncolysis and immune stimulatory components of oncolytic adenovirotherapy.
Collapse
|
2
|
Maitland NJ, Frame FM, Rane JK, Erb HH, Packer JR, Archer LK, Pellacani D. Resolution of Cellular Heterogeneity in Human Prostate Cancers: Implications for Diagnosis and Treatment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1164:207-224. [PMID: 31576551 DOI: 10.1007/978-3-030-22254-3_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Prostate cancers have a justified reputation as one of the most heterogeneous human tumours. Indeed, there are some who consider that advanced and castration-resistant prostate cancers are incurable, as a direct result of this heterogeneity. However, tumour heterogeneity can be defined in different ways. To a clinician, prostate cancer is a number of different diseases, the treatments for which remain equally heterogeneous and uncertain. To the pathologist, the histopathological appearances of the tumours are notoriously heterogeneous. Indeed, the genius of Donald Gleason in the 1960s was to devise a classification system designed to take into account the heterogeneity of the tumours both individually and in the whole prostate context. To the cell biologist, a prostate tumour consists of multiple epithelial cell types, inter-mingled with various fibroblasts, neuroendocrine cells, endothelial cells, macrophages and lymphocytes, all of which interact to influence treatment responses in a patient-specific manner. Finally, genetic analyses of prostate cancers have been compromised by the variable gene rearrangements and paucity of activating mutations observed, even in large numbers of patient tumours with consistent clinical diagnoses and/or outcomes. Research into familial susceptibility has even generated the least tractable outcome of such studies: the genetic loci are of low penetrance and are of course heterogeneous. By fractionating the tumour (and patient-matched non-malignant tissues) heterogeneity can be resolved, revealing homogeneous markers of patient outcomes.
Collapse
Affiliation(s)
- Norman J Maitland
- Cancer Research Unit, Department of Biology, University of York, York, UK.
| | - Fiona M Frame
- Cancer Research Unit, Department of Biology, University of York, York, UK
| | - Jayant K Rane
- Cancer Research Unit, Department of Biology, University of York, York, UK
| | - Holger H Erb
- Cancer Research Unit, Department of Biology, University of York, York, UK
| | - John R Packer
- Cancer Research Unit, Department of Biology, University of York, York, UK
| | - Leanne K Archer
- Cancer Research Unit, Department of Biology, University of York, York, UK
| | - Davide Pellacani
- Cancer Research Unit, Department of Biology, University of York, York, UK.,Terry Fox Laboratory, BC Cancer Agency, Vancouver, BC, Canada
| |
Collapse
|
3
|
Cai Z, Lv H, Cao W, Zhou C, Liu Q, Li H, Zhou F. Targeting strategies of adenovirus‑mediated gene therapy and virotherapy for prostate cancer (Review). Mol Med Rep 2017; 16:6443-6458. [PMID: 28901490 PMCID: PMC5865813 DOI: 10.3892/mmr.2017.7487] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 07/11/2017] [Indexed: 02/05/2023] Open
Abstract
Prostate cancer (PCa) poses a high risk to older men and it is the second most common type of male malignant tumor in western developed countries. Additionally, there is a lack of effective therapies for PCa at advanced stages. Novel treatment strategies such as adenovirus-mediated gene therapy and virotherapy involve the expression of a specific therapeutic gene to induce death in cancer cells, however, wild-type adenoviruses are also able to infect normal human cells, which leads to undesirable toxicity. Various PCa-targeting strategies in adenovirus-mediated therapy have been developed to improve tumor-targeting effects and human safety. The present review summarizes the relevant knowledge regarding available adenoviruses and PCa-targeting strategies. In addition, future directions in this area are also discussed. In conclusion, although they remain in the early stages of basic research, adenovirus-mediated gene therapy and virotherapy are expected to become important therapies for tumors in the future due to their potential targeting strategies.
Collapse
Affiliation(s)
- Zhonglin Cai
- Department of Urology, Lanzhou General Hospital of Lanzhou Military Command, Lanzhou, Gansu 730050, P.R. China
| | - Haidi Lv
- Department of Urology, Lanzhou General Hospital of Lanzhou Military Command, Lanzhou, Gansu 730050, P.R. China
| | - Wenjuan Cao
- Department of Urology, Lanzhou General Hospital of Lanzhou Military Command, Lanzhou, Gansu 730050, P.R. China
| | - Chuan Zhou
- Department of Urology, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qiangzhao Liu
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Hui Li
- Department of Neurosurgery, Lanzhou General Hospital of Lanzhou Military Command, Lanzhou, Gansu 730050, P.R. China
| | - Fenghai Zhou
- Department of Urology, Lanzhou General Hospital of Lanzhou Military Command, Lanzhou, Gansu 730050, P.R. China
| |
Collapse
|
4
|
Frame FM, Pellacani D, Collins AT, Maitland NJ. Harvesting Human Prostate Tissue Material and Culturing Primary Prostate Epithelial Cells. Methods Mol Biol 2016; 1443:181-201. [PMID: 27246341 DOI: 10.1007/978-1-4939-3724-0_12] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In order to fully explore the biology of a complex solid tumor such as prostate cancer, it is desirable to work with patient tissue. Only by working with cells from a tissue can we take into account patient variability and tumor heterogeneity. Cell lines have long been regarded as the workhorse of cancer research and it could be argued that they are of most use when considered within a panel of cell lines, thus taking into account specified mutations and variations in phenotype between different cell lines. However, often very different results are obtained when comparing cell lines to primary cells cultured from tissue. It stands to reason that cells cultured from patient tissue represents a close-to-patient model that should and does produce clinically relevant data. This chapter aims to illustrate the methods of processing, storing and culturing cells from prostate tissue, with a description of potential uses.
Collapse
Affiliation(s)
- Fiona M Frame
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK.
| | - Davide Pellacani
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK
| | - Anne T Collins
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK
| | - Norman J Maitland
- YCR Cancer Research Unit, Department of Biology, University of York, Heslington, North Yorkshire, YO10 5DD, UK.
| |
Collapse
|
5
|
Schenk E, Essand M, Kraaij R, Adamson R, Maitland NJ, Bangma CH. Preclinical safety assessment of Ad[I/PPT-E1A], a novel oncolytic adenovirus for prostate cancer. HUM GENE THER CL DEV 2014; 25:7-15. [PMID: 24649837 DOI: 10.1089/humc.2013.181] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Prostate cancer is the most common malignancy in the Western world. Patients can be cured only when the tumor has not metastasized outside the prostate. However, treatment with curative intent fails in a significant number of men, often resulting in untreatable progressive disease with a fatal outcome. Oncolytic adenovirus therapy may be a promising adjuvant treatment to reduce local failure or the outgrowth of micrometastatic disease. Within the European gene therapy consortium GIANT, we have developed a novel prostate-specific oncolytic adenovirus: Ad[I/PPT-E1A]. This adenovirus specifically kills prostate cells via prostate-specific replication. This article describes the clinical development of Ad[I/PPT-E1A] with particular reference to the preclinical safety assessment of this novel virus. The preclinical safety assessment involved an efficacy study in a human orthotopic xenograft mouse model, a specificity study in human primary cells, and a toxicity study in normal mice. These studies confirmed that Ad[I/PPT-E1A] efficiently kills prostate tumor cells in vivo, is not harmful to other organs, and is well tolerated in mice after systemic delivery. The safety, as well as the immunological effects of Ad[I/PPT-E1A] as a local adjuvant therapy, will now be studied in a phase I dose-escalating trial in patients with localized prostate cancer who are scheduled for curative radical prostatectomy and can be used as an updated paradigm for similar therapeutic viruses.
Collapse
Affiliation(s)
- Ellen Schenk
- 1 Department of Urology, Erasmus MC , 3000 CA Rotterdam, The Netherlands
| | | | | | | | | | | |
Collapse
|
6
|
Schenk E, Essand M, Kraaij R, Adamson R, Maitland N, Bangma CH. Pre-clinical safety assessment of Ad[I/PPT-E1A], a novel oncolytic adenovirus for prostate cancer. HUM GENE THER CL DEV 2014. [DOI: 10.1089/hum.2013.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
7
|
Deng X, Jia C, Chen F, Liu J, Zhou Z. Effects of heat stress on the expression of the coxsackievirus and adenovirus receptor in mouse skin keratinocytes. Exp Ther Med 2013; 6:1029-1033. [PMID: 24137310 PMCID: PMC3797294 DOI: 10.3892/etm.2013.1230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 07/15/2013] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to investigate the effects of heat stress on the expression of the coxsackievirus and adenovirus receptor (CAR) in mouse skin keratinocytes. Twenty BALB/c mice were randomly divided into two groups: the sham heat (control) and scald groups. Skin specimens were obtained 6 h after the treatments. Changes in the expression of CAR in skin keratinocyte samples were detected by immunohistochemistry, quantitative polymerase chain reaction and western blotting. In an in vitro assay, mouse skin keratinocytes were cultured and randomly divided into two groups: the normal control and heat stress groups. Six hours subsequently, the changes in CAR expression in the two groups were estimated by flow cytometry to determine the differences between the two groups. Heat stress significantly increased the expression of CAR in the mouse skin keratinocytes (P<0.05). The upregulation of CAR in mouse keratinocytes in burn wounds may be beneficial for restoring healing in organisms.
Collapse
Affiliation(s)
- Xiangdong Deng
- The Graduate School, Chinese People's Liberation Army Medical College, Beijing 100039
| | | | | | | | | |
Collapse
|
8
|
Yu D, Jin C, Ramachandran M, Xu J, Nilsson B, Korsgren O, Le Blanc K, Uhrbom L, Forsberg-Nilsson K, Westermark B, Adamson R, Maitland N, Fan X, Essand M. Adenovirus serotype 5 vectors with Tat-PTD modified hexon and serotype 35 fiber show greatly enhanced transduction capacity of primary cell cultures. PLoS One 2013; 8:e54952. [PMID: 23372800 PMCID: PMC3555985 DOI: 10.1371/journal.pone.0054952] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 12/18/2012] [Indexed: 12/14/2022] Open
Abstract
Recombinant adenovirus serotype 5 (Ad5) vectors represent one of the most efficient gene delivery vectors in life sciences. However, Ad5 is dependent on expression of the coxsackievirus-adenovirus-receptor (CAR) on the surface of target cell for efficient transduction, which limits it’s utility for certain cell types. Herein we present a new vector, Ad5PTDf35, which is an Ad5 vector having serotype 35 fiber-specificity and Tat-PTD hexon-modification. This vector shows dramatically increased transduction capacity of primary human cell cultures including T cells, monocytes, macrophages, dendritic cells, pancreatic islets and exocrine cells, mesenchymal stem cells and tumor initiating cells. Biodistribution in mice following systemic administration (tail-vein injection) show significantly reduced uptake in the liver and spleen of Ad5PTDf35 compared to unmodified Ad5. Therefore, replication-competent viruses with these modifications may be further developed as oncolytic agents for cancer therapy. User-friendly backbone plasmids containing these modifications were developed for compatibility to the AdEasy-system to facilitate the development of surface-modified adenoviruses for gene delivery to difficult-to-transduce cells in basic, pre-clinical and clinical research.
Collapse
Affiliation(s)
- Di Yu
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Chuan Jin
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Mohanraj Ramachandran
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Jing Xu
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Berith Nilsson
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Olle Korsgren
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Katarina Le Blanc
- Division of Clinical Immunology, Karolinska University Hospital, Huddinge, Sweden
| | - Lene Uhrbom
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Karin Forsberg-Nilsson
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Bengt Westermark
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Rachel Adamson
- Department of Biology, YCR Cancer Research Unit, University of York, Heslington, United Kingdom
| | - Norman Maitland
- Department of Biology, YCR Cancer Research Unit, University of York, Heslington, United Kingdom
| | - Xiaolong Fan
- Rausing Laboratory, Lund University, Lund, Sweden
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Magnus Essand
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
- * E-mail:
| |
Collapse
|
9
|
Hu Z, Gupta J, Zhang Z, Gerseny H, Berg A, Chen YJ, Zhang Z, Du H, Brendler CB, Xiao X, Pienta KJ, Guise T, Lee C, Stern PH, Stock S, Seth P. Systemic delivery of oncolytic adenoviruses targeting transforming growth factor-β inhibits established bone metastasis in a prostate cancer mouse model. Hum Gene Ther 2012; 23:871-82. [PMID: 22551458 DOI: 10.1089/hum.2012.040] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We have examined whether Ad.sTβRFc and TAd.sTβRFc, two oncolytic viruses expressing soluble transforming growth factor-β receptor II fused with human Fc (sTGFβRIIFc), can be developed to treat bone metastasis of prostate cancer. Incubation of PC-3 and DU-145 prostate tumor cells with Ad.sTβRFc and TAd.sTβRFc produced sTGFβRIIFc and viral replication; sTGFβRIIFc caused inhibition of TGF-β-mediated SMAD2 and SMAD3 phosphorylation. Ad(E1-).sTβRFc, an E1(-) adenovirus, produced sTGFβRIIFc but failed to replicate in tumor cells. To examine the antitumor response of adenoviral vectors, PC-3-luc cells were injected into the left heart ventricle of nude mice. On day 9, mice were subjected to whole-body bioluminescence imaging (BLI). Mice bearing hind-limb tumors were administered viral vectors via the tail vein on days 10, 13, and 17 (2.5×10(10) viral particles per injection per mouse, each injection in a 0.1-ml volume), and subjected to BLI and X-ray radiography weekly until day 53. Ad.sTβRFc, TAd.sTβRFc, and Ad(E1-).sTβRFc caused significant inhibition of tumor growth; however, Ad.sTβRFc was the most effective among all the vectors. Only Ad.sTβRFc and TAd.sTβRFc inhibited tumor-induced hypercalcemia. Histomorphometric and synchrotron micro-computed tomographic analysis of isolated bones indicated that Ad.sTβRFc induced significant reduction in tumor burden, osteoclast number, and trabecular and cortical bone destruction. These studies suggest that Ad.sTβRFc and TAd.sTβRFc can be developed as potential new therapies for prostate cancer bone metastasis.
Collapse
Affiliation(s)
- Zebin Hu
- Gene Therapy Program, Department of Medicine, NorthShore Research Institute, Evanston, IL 60201, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|