Abstract:
:Oncolytic viruses (OV) are novel cancer gene therapies that are moving toward the forefront of modern medicines. However, their full therapeutic potential is hindered by the lack of convenient and reliable strategies to visualize and quantify OV growth kinetics and therapeutic efficacy in live cells. Here, we present a first-in-class imaging approach for single-cell, real-time analysis of OV replication and efficacy in cancer cells. We selected SG33 as a prototypic, new OV that derives from wild-type Myxoma virus (MYXV) Lausanne Toulouse 1 (T1) that was used as control. We equipped SG33 and T1 genomes with the ANCHOR system and infected a panel of cell lines. The ANCHOR system is composed of a fusion protein (OR-GFP) that specifically binds to a short, non-repetitive DNA target sequence (ANCH) and spreads onto neighbouring sequences by protein oligomerization. Its accumulation on the tagged viral DNA results in the creation of fluorescent foci. We found that (i) SG33 and T1-ANCHOR DNA can be readily detected and quantified by live imaging, (ii) both OVs generate perinuclear replication foci after infection clustering into horse-shoe shape replication centres, and (iii) SG33 replicates to higher levels as compared to T1. Lastly, as a translational proof-of-concept, we benchmarked SG33 replication and oncolytic efficacy in primary cancer cells derived from pancreatic adenocarcinoma (PDAC) both at the population and the single-cell levels. In vivo, SG33 significantly replicates in experimental tumours to inhibit tumour growth. Collectively, we provide herein for the first time a novel strategy to quantify each step of OV infection in live cells and in real-time by tracking viral DNA, and provide first evidence of theranostic strategies for PDAC patients. Thus, this approach has the potential to rationalize the use of OV for the benefit of patients with incurable diseases.
journal_name
Hum Gene Therjournal_title
Human gene therapyauthors
Quillien L,Top S,Kappler S,Redouté A,Dusetti N,Quentin-Froignant C,Lulka H,Camus C,Buscail L,Gallardo F,Bertagnoli S,Cordelier Pdoi
10.1089/hum.2020.294subject
Has Abstractpub_date
2021-01-27 00:00:00eissn
1043-0342issn
1557-7422pub_type
杂志文章abstract::Clinical applications of gene therapy require advances in gene delivery systems. Although numerous clinical trials are already underway, the ultimate success of gene therapies will depend on gene transfer vectors that facilitate the expression of a specific gene at therapeutic levels in the desired cell populations wi...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/10430340360535751
更新日期:2003-02-10 00:00:00
abstract::Isolated methylmalonic acidemia (MMA), a group of autosomal recessive inborn errors of metabolism, is most commonly caused by complete (mut(0)) or partial (mut(-)) deficiency of the enzyme methylmalonyl-CoA mutase (MUT). The severe metabolic instability and increased mortality experienced by many affected individuals,...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2015.092
更新日期:2016-05-01 00:00:00
abstract::Duchenne muscular dystrophy (DMD) and other inherited myopathies lead to progressive destruction of most skeletal muscles in the body, including those responsible for maintaining respiration. DMD is a fatal disorder caused by defects in the dystrophin gene. Recombinant adenovirus vectors (AdV) are considered a promisi...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/10430340050015608
更新日期:2000-03-20 00:00:00
abstract::Gene electrotransfer is gaining momentum as an efficient methodology for nonviral gene transfer. In skeletal muscle, data suggest that electric pulses play two roles: structurally permeabilizing the muscle fibers and electrophoretically supporting the migration of DNA toward or across the permeabilized membrane. To in...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hgt.2008.060
更新日期:2008-11-01 00:00:00
abstract::Adeno-associated viral vectors are showing great promise as gene therapy vectors for a wide range of retinal disorders. To date, evaluation of therapeutic approaches has depended almost exclusively on the use of animal models. With recent advances in human stem cell technology, stem cell-derived retina now offers the ...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2018.027
更新日期:2018-10-01 00:00:00
abstract::Gene delivery via murine-based recombinant retroviral vectors is currently widely used in gene therapy clinical trials. The vectors are engineered to be replication defective by replacing the structural and nonstructural genes of a cloned infectious retrovirus with a therapeutic gene of interest. The retroviral partic...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1997.8.10-1231
更新日期:1997-07-01 00:00:00
abstract::Subcutaneous vaccination therapy with glioma cells, which are retrovirally transduced to secrete granulocyte-macrophage colony-stimulating factor (GM-CSF), has previously proven effective in C57BL/6 mice harboring intracerebral GL261 gliomas. However, clinical ex vivo gene therapy for human gliomas would be difficult,...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/10430340050057503
更新日期:2000-07-01 00:00:00
abstract::Newcastle disease virus (NDV) is a naturally oncolytic virus that has been shown to be safe and effective for cancer therapy. Tumor virotherapy using NDV emerged in the 1950s and has advanced more recently by the increased availability of reverse genetics technology. In this study, we constructed a reverse genetics sy...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2011.207
更新日期:2012-07-01 00:00:00
abstract::We reported that SNV-derived retroviral vectors, which display single-chain antibodies on the viral surface, enable cell type-specific gene delivery into various human cells. In particular, the SNV cell type-specific gene delivery vector system appears to be well suited to transduce genes into cells of the human hemat...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/10430349950016663
更新日期:1999-11-01 00:00:00
abstract::Replication-deficient viral vectors are currently being used in gene transfer strategies to treat cancer cells. Unfortunately, viruses are limited in their ability to diffuse through tissue. This makes it virtually impossible to infect the majority of tumor cells in vivo and results in inadequate gene transfer. This p...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1998.9.8-1209
更新日期:1998-05-20 00:00:00
abstract::Approaches to alter the native tropism of adenoviruses (Ads) are beneficial to increase their efficacy and safety profile. Liver tropism is important with regard to potential clinical toxicity in humans. Ad5/3 chimeras in which the Ad5 knob is substituted by the Ad3 knob, such as Ad5/3luc1, have been recently shown to...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/10430340460745829
更新日期:2004-05-01 00:00:00
abstract::Engineering gene therapy vectors to modulate the immune response is an important goal. In this regard, costimulation of T cells is a critical determinant in immune activation. The costimulatory molecule CD40, expressed on antigen-presenting cells, is thought to interact with CD40 ligand (CD40L) expressed on activated ...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/104303401750214302
更新日期:2001-06-10 00:00:00
abstract::Efficient DNA electrotransfer can be achieved with combinations of short high-voltage (HV) and long low voltage (LV) pulses that cover two effects of the pulses, namely, target cell electropermeabilization and DNA electrophoresis within the tissue. Because HV and LV can be delivered with a lag up to 3000 sec between t...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2005.16.1194
更新日期:2005-10-01 00:00:00
abstract::Abstract Our studies have shown that coinjection of conventional single-stranded adeno-associated virus 2 (ssAAV2) vectors carrying the enhanced green fluorescent protein (EGFP) gene with self-complementary (sc) AAV2-T cell protein tyrosine phosphatase (TC-PTP) and scAAV2-protein phosphatase-5 (PP5) vectors resulted i...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2009.100
更新日期:2010-03-01 00:00:00
abstract::Metabolic myopathies are a diverse group of rare diseases in which impaired breakdown of stored energy leads to profound muscle dysfunction ranging from exercise intolerance to severe muscle wasting. Metabolic myopathies are largely caused by functional deficiency of a single gene and are generally subcategorized into...
journal_title:Human gene therapy
pub_type: 杂志文章,评审
doi:10.1089/hum.2013.2514
更新日期:2013-11-01 00:00:00
abstract::Expression of a gene encoding the diphtheria toxin A (DT-A) fragment, controlled by tissue specific regulatory elements, has previously been used to kill selected cell populations. Here, we have examined the feasibility of controlling DT-A expression using regulatory systems from the human immunodeficiency virus (HIV-...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1991.2.1-53
更新日期:1991-04-01 00:00:00
abstract::Recombinant adeno-associated viral (AAV) vectors of serotypes 6, 8, and 9 were characterized as tools for gene delivery to dopaminergic neurons in the substantia nigra for future gene therapeutic applications in Parkinson's disease. While vectors of all three serotypes transduced nigral dopaminergic neurons with equal...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2012.174
更新日期:2013-06-01 00:00:00
abstract::Adenoviruses (Ads) have shown great utility as vectors for the delivery of genes to mammalian cells, partly because of their ability to infect a wide range of different cell types independent of the replicative state of the cell. However, Ads do not transduce mature muscle efficiently because of low levels of the natu...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/104303404772679986
更新日期:2004-02-01 00:00:00
abstract::Combining chemotherapy and immunotherapy is problematic because chemotherapy can ablate the immune responses initiated by modulators of the immune system. We hypothesized that protection of immunocompetent cells from the toxic effects of chemotherapy, using drug resistance gene therapy strategies, would allow the comb...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2006.17.798
更新日期:2006-08-01 00:00:00
abstract::Retrovirus integration into the host cell genome occurs most efficiently in replicating cells. In agreement with this notion, it was observed that the efficiency with which hemopoietic stem cells (HSC) can be transduced is greatly enhanced when the hemopoietic growth factor (HGF) interleukin 3 (IL-3) is added to co-cu...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1991.2.4-301
更新日期:1991-01-01 00:00:00
abstract::SV40 is an attractive potential vector with high-efficiency gene transfer into a wide variety of human tissues, including the bone marrow, a critical target organ for the cure of many diseases. In the present study, the three SV40 capsid proteins, VP1, VP2, and VP3, were produced in Spodoptera frugiperda (Sf9) insect ...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1997.8.7-843
更新日期:1997-05-01 00:00:00
abstract::Due to both the avascularity of the cornea and the relatively immune-privileged status of the eye, corneal transplantation is one of the most successful clinical transplant procedures. However, in high-risk patients, which account for >20% of the 180,000 transplants carried out worldwide each year, the rejection rate ...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2017.184
更新日期:2018-06-01 00:00:00
abstract::Duchenne muscular dystrophy (DMD) typically occurs as a result of truncating mutations in the DMD gene that result in a lack of expression of the dystrophin protein in muscle fibers. Various therapies under development are directed toward restoring dystrophin expression at the subsarcolemmal membrane, including gene t...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2013.092
更新日期:2013-09-01 00:00:00
abstract::T lymphocytes, regardless of their specificity, are considered key targets for genetic modification in the treatment of inherited or acquired human diseases. In this study, we generated Lewis T cell lines specific for Dark Agouti rat alloantigens and tested the potential of allospecific T lymphocytes as carriers of ge...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/10430340050032401
更新日期:2000-06-10 00:00:00
abstract::Recombinant adeno-associated virus 2 (rAAV2) has been extensively used as a gene delivery vector for the nervous system. It targets primarily neurons in the nervous system and results in sustained long-term expression of transgenes. New rAAV serotypes have been characterized and demonstrated to have improved transduct...
journal_title:Human gene therapy
pub_type: 杂志文章,评审
doi:10.1089/hum.2005.16.781
更新日期:2005-07-01 00:00:00
abstract::Deficiency of glycogen branching enzyme (GBE) causes glycogen storage disease type IV (GSD IV), which is characterized by the accumulation of a less branched, poorly soluble form of glycogen called polyglucosan (PG) in multiple tissues. This study evaluates the efficacy of gene therapy with an adeno-associated viral (...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2016.099
更新日期:2017-03-01 00:00:00
abstract::Human hematopoietic stem cells (HSCs) are poorly transduced by vectors based on adenovirus serotype 5 (Ad5). This is primarily due to the paucity of the coxsackievirus-Ad receptor on these cells. In an attempt to change the tropism of Ad5, we constructed a series of chimeric E1-deleted Ad5 vectors in which the shaft a...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/104303401753204562
更新日期:2001-11-01 00:00:00
abstract::Retinal ganglion cells (RGCs) play a key role in the pathogenesis and development of glaucoma. The present study aims to investigate the underlying mechanism of long noncoding RNA growth arrest-specific transcript 5 (GAS5) in glaucoma development through regulating the apoptosis of RGCs. Rat models of chronic glaucoma...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.2019.056
更新日期:2019-12-01 00:00:00
abstract::Evaluation of the potential role of dendritic cells (DCs) as adjuvants for tumor vaccination has focused primarily on techniques that load DCs with peptide tumor antigens. Our aim has been to optimize the induction of antitumor immunity by enhancing the ability of DCs to present tumor-associated antigens endogenously ...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1997.8.11-1355
更新日期:1997-07-20 00:00:00
abstract::Human serum is known to inactivate many retroviruses, including murine leukemia viruses (MLV). Exposure of vectors based on MLV to human serum components would presumably decrease the efficiency of gene transfer in vivo. Human serum also lyses xenogeneic cells, which would affect the survival of retroviral vector pack...
journal_title:Human gene therapy
pub_type: 杂志文章
doi:10.1089/hum.1995.6.5-635
更新日期:1995-05-01 00:00:00