1
|
Li J, Zhuang C, Liu Y, Chen M, Chen Y, Chen Z, He A, Lin J, Zhan Y, Liu L, Xu W, Zhao G, Guo Y, Wu H, Cai Z, Huang W. Synthetic tetracycline-controllable shRNA targeting long non-coding RNA HOXD-AS1 inhibits the progression of bladder cancer. J Exp Clin Cancer Res 2016; 35:99. [PMID: 27328915 PMCID: PMC4915162 DOI: 10.1186/s13046-016-0372-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 06/08/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have been proved to act as key molecules in cancer development and progression. Dysregulation of lncRNAs is discovered in various tumor tissues and cancer cells where they can serve as oncogenes or tumor suppressors. Long non-coding RNA HOXD-AS (HOXD cluster antisense RNA 1) has recently been identified to be involved in the development of several cancers including neuroblastoma, adenocarcinomas and breast cancer. However, the role of HOXD-AS1 in bladder cancer remains unknown. METHODS The synthetic tetracycline-controllable shRNA was used to modulate the level of HOXD-AS1 by adding different concentrations of doxycycline (dox). RT-qPCR was used to detect the expression level of HOXD-AS1. Cell proliferation was determined by CCK-8 assay and EdU incorporation experiment when HOXD-AS1 was knocked down. We used wound-healing assay for detecting the effect of HOXD-AS1 on cell migration. Eventually, cell apoptosis was determined by caspase 3 ELISA assay and flow cytometry assay. RESULTS In this study, we found that the expression level of HOXD-AS1 was significantly increased in bladder cancer tissues and cells. Furthermore, high expression of HOXD-AS1 was significantly related to tumor size, histological grade and TNM stage. In vitro assays confirmed that knockdown of HOXD-AS1 suppressed cell proliferation/migration and increased the rate of apoptotic cell in bladder cancer cells. At last, we used the important element of synthetic biology, tetracycline(tet)-controllable switch, to construct tet-controllable shRNA vectors which can modulate the expression of HOXD-AS1 in a dosage-dependent manner. CONCLUSIONS Our research suggested that high expression of HOXD-AS1 may be involved in the bladder cancer carcinogenesis through inhibiting the phenotypes and activating endogenous cancer-related molecular pathways. Therefore, HOXD-AS1 may act as an oncogene and provide a potential attractive therapeutic target for bladder cancer. In addition, the synthetic tetracycline-controllable shRNA may provide a novel method for cancer research in vitro assays.
Collapse
Affiliation(s)
- Jianfa Li
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Chengle Zhuang
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, 518036, People's Republic of China
| | - Yuchen Liu
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
| | - Mingwei Chen
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Anhui Medical University, Hefei, 230000, Anhui Province, People's Republic of China
| | - Yincong Chen
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Zhicong Chen
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Anbang He
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Anhui Medical University, Hefei, 230000, Anhui Province, People's Republic of China
| | - Junhao Lin
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Yonghao Zhan
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Li Liu
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Wen Xu
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
| | - Guoping Zhao
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Centerat Shanghai, Shanghai, 200000, People's Republic of China
| | - Yinglu Guo
- Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing, 100034, People's Republic of China
| | - Hanwei Wu
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China
| | - Zhiming Cai
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China.
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China.
- Anhui Medical University, Hefei, 230000, Anhui Province, People's Republic of China.
- Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing, 100034, People's Republic of China.
| | - Weiren Huang
- Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, Clinical Institute of Shantou University Medical College, First Affiliated Hospital of Shenzhen University, Shenzhen, 518039, Guangdong Province, People's Republic of China.
- Shantou University Medical College, Shantou, 515041, Guangdong Province, People's Republic of China.
- Anhui Medical University, Hefei, 230000, Anhui Province, People's Republic of China.
- Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing, 100034, People's Republic of China.
| |
Collapse
|
2
|
Yarmush ML, Golberg A, Serša G, Kotnik T, Miklavčič D. Electroporation-Based Technologies for Medicine: Principles, Applications, and Challenges. Annu Rev Biomed Eng 2014; 16:295-320. [DOI: 10.1146/annurev-bioeng-071813-104622] [Citation(s) in RCA: 519] [Impact Index Per Article: 51.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Martin L. Yarmush
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School and Shriners Burn Hospital for Children, Boston, Massachusetts 02114; email (M.L.Y.):
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08854;
| | - Alexander Golberg
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School and Shriners Burn Hospital for Children, Boston, Massachusetts 02114; email (M.L.Y.):
| | - Gregor Serša
- Department of Experimental Oncology, Institute of Oncology Ljubljana, SI-1000 Ljubljana, Slovenia
| | - Tadej Kotnik
- Department of Biomedical Engineering, Faculty of Electrical Engineering, University of Ljubljana, SI-1000 Ljubljana, Slovenia;
| | - Damijan Miklavčič
- Department of Biomedical Engineering, Faculty of Electrical Engineering, University of Ljubljana, SI-1000 Ljubljana, Slovenia;
| |
Collapse
|
3
|
Thevenard J, Ramont L, Mir LM, Dupont-Deshorgue A, Maquart FX, Monboisse JC, Brassart-Pasco S. A new anti-tumor strategy based on in vivo tumstatin overexpression after plasmid electrotransfer in muscle. Biochem Biophys Res Commun 2013; 432:549-52. [PMID: 23454380 DOI: 10.1016/j.bbrc.2013.02.074] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Accepted: 02/14/2013] [Indexed: 11/17/2022]
Abstract
The NC1 domains from the different α(IV) collagen chains were found to exert anti-tumorigenic and/or anti-angiogenic activities. A limitation to the therapeutic use of these matrikines is the large amount of purified recombinant proteins, in the milligram range in mice that should be administered daily throughout the experimental procedures. In the current study, we developed a new therapeutic approach based on tumstatin (NC1α3(IV)) overexpression in vivo in a mouse melanoma model. Gene electrotransfer of naked plasmid DNA (pDNA) is particularly attractive because of its simplicity, its lack of immune responsiveness and its safety. The pDNA electrotransfer in muscle mediates a substantial gene expression that lasts several months. A pVAX1© vector containing the tumstatin cDNA was injected into the legs of C57BL/6 mice and submitted to electrotranfer. Sera were collected at different times and tumstatin was quantified by ELISA. Tumstatin secretion reached a plateau at day 21 with an expression level of 12 μg/mL. For testing the effects of tumstatin expression on tumor growth in vivo, B16F1 melanoma cells were subcutaneously injected in mice 7 days after empty pVAX1© (Mock) or pVAX1©-tumstatin electrotransfer. Tumstatin expression triggered a large decrease in tumor growth and an increase in mouse survival. This new therapeutic approach seems promising to inhibit tumor progression in vivo.
Collapse
Affiliation(s)
- Jessica Thevenard
- FRE CNRS/URCA 3481, University of Reims Champagne-Ardenne, 51 rue Cognacq Jay, F-51095 Reims, France.
| | | | | | | | | | | | | |
Collapse
|
4
|
Hamma-Kourbali Y, Bermek O, Bernard-Pierrot I, Karaky R, Martel-Renoir D, Frechault S, Courty J, Delbé J. The synthetic peptide P111-136 derived from the C-terminal domain of heparin affin regulatory peptide inhibits tumour growth of prostate cancer PC-3 cells. BMC Cancer 2011; 11:212. [PMID: 21624116 PMCID: PMC3118947 DOI: 10.1186/1471-2407-11-212] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 05/30/2011] [Indexed: 01/19/2023] Open
Abstract
Background Heparin affin regulatory peptide (HARP), also called pleiotrophin, is a heparin-binding, secreted factor that is overexpressed in several tumours and associated to tumour growth, angiogenesis and metastasis. The C-terminus part of HARP composed of amino acids 111 to 136 is particularly involved in its biological activities and we previously established that a synthetic peptide composed of the same amino acids (P111-136) was capable of inhibiting the biological activities of HARP. Here we evaluate the ability of P111-136 to inhibit in vitro and in vivo the growth of a human tumour cell line PC-3 which possess an HARP autocrine loop. Methods A total lysate of PC-3 cells was incubated with biotinylated P111-136 and pulled down for the presence of the HARP receptors in Western blot. In vitro, the P111-136 effect on HARP autocrine loop in PC-3 cells was determined by colony formation in soft agar. In vivo, PC-3 cells were inoculated in the flank of athymic nude mice. Animals were treated with P111-136 (5 mg/kg/day) for 25 days. Tumour volume was evaluated during the treatment. After the animal sacrifice, the tumour apoptosis and associated angiogenesis were evaluated by immunohistochemistry. In vivo anti-angiogenic effect was confirmed using a mouse Matrigel™ plug assay. Results Using pull down experiments, we identified the HARP receptors RPTPβ/ζ, ALK and nucleolin as P111-136 binding proteins. In vitro, P111-136 inhibits dose-dependently PC-3 cell colony formation. Treatment with P111-136 inhibits significantly the PC-3 tumour growth in the xenograft model as well as tumour angiogenesis. The angiostatic effect of P111-136 on HARP was also confirmed using an in vivo Matrigel™ plug assay in mice Conclusions Our results demonstrate that P111-136 strongly inhibits the mitogenic effect of HARP on in vitro and in vivo growth of PC-3 cells. This inhibition could be linked to a direct or indirect binding of this peptide to the HARP receptors (ALK, RPTPβ/ζ, nucleolin). In vivo, the P111-136 treatment significantly inhibits both the PC-3 tumour growth and the associated angiogenesis. Thus, P111-136 may be considered as an interesting pharmacological tool to interfere with tumour growth that has now to be evaluated in other cancer types.
Collapse
Affiliation(s)
- Yamina Hamma-Kourbali
- Laboratoire de Recherche sur la Croissance Cellulaire, la Réparation et la Régénération Tissulaires, Université Paris Est Créteil, CNRS, avenue du Général de Gaulle, 94010 Créteil Cedex, France
| | | | | | | | | | | | | | | |
Collapse
|
5
|
De Giovanni C, Nicoletti G, Palladini A, Croci S, Landuzzi L, Antognoli A, Murgo A, Astolfi A, Ferrini S, Fabbi M, Orengo AM, Amici A, Penichet ML, Aurisicchio L, Iezzi M, Musiani P, Nanni P, Lollini PL. A multi-DNA preventive vaccine for p53/Neu-driven cancer syndrome. Hum Gene Ther 2010; 20:453-64. [PMID: 19215191 DOI: 10.1089/hum.2008.172] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The highly aggressive cancer syndrome of female mice carrying a p53 knockout allele and a rat HER-2/neu (Neu) transgene (BALB-p53Neu) can be prevented by a cell vaccine presenting three components: Neu, interleukin (IL)-12 production, and allogeneic major histocompatibility complex (MHC) alleles (Triplex cell vaccine). Here we tested a second-generation Triplex DNA-based vaccine (Tri-DNA), consisting of the combination of three gene components (a transmembrane-extracellular domain fragment of the Neu gene, IL-12 genes, and the H-2D(q) allogeneic MHC gene), carried by separate plasmids. The Tri-DNA vaccine was at least as effective as the Triplex cell vaccine for cancer immunoprevention, giving a similar delay in the onset of mammary cancer and complete protection from salivary cancer. Both vaccines induced anti-Neu antibodies of the murine IgG2a isotype at similar levels. The Tri-DNA vaccine gave more restricted immunostimulation, consisting of a fully helper T cell type 1 (Th1)-polarized response, with effective production of interferon (IFN)-gamma in response to the vaccine but no spontaneous production, and no induction of anti-Neu IgG3 antibodies. On the other hand, the Triplex cell vaccine induced both Th1 and Th2 cytokines, a strong increase in spontaneous IFN-gamma production, and high levels of IgG3 antibodies recognizing Neu-positive syngeneic cells. In conclusion, the Tri-DNA vaccine is as effective as Triplex cell vaccine, exploiting a more restricted immune stimulation.
Collapse
Affiliation(s)
- C De Giovanni
- Cancer Research Section, Department of Experimental Pathology, Alma Mater Studiorum, University of Bologna, I-40126 Bologna, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Stieger K, Belbellaa B, Le Guiner C, Moullier P, Rolling F. In vivo gene regulation using tetracycline-regulatable systems. Adv Drug Deliv Rev 2009; 61:527-41. [PMID: 19394373 PMCID: PMC7103297 DOI: 10.1016/j.addr.2008.12.016] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Accepted: 12/15/2008] [Indexed: 10/26/2022]
Abstract
Numerous preclinical studies have demonstrated the efficacy of viral gene delivery vectors, and recent clinical trials have shown promising results. However, the tight control of transgene expression is likely to be required for therapeutic applications and in some instances, for safety reasons. For this purpose, several ligand-dependent transcription regulatory systems have been developed. Among these, the tetracycline-regulatable system is by far the most frequently used and the most advanced towards gene therapy trials. This review will focus on this system and will describe the most recent progress in the regulation of transgene expression in various organs, including the muscle, the retina and the brain. Since the development of an immune response to the transactivator was observed following gene transfer in the muscle of nonhuman primate, focus will be therefore, given on the immune response to transgene products of the tetracycline inducible promoter.
Collapse
Affiliation(s)
- Knut Stieger
- INSERM UMR U649, CHU-Hotel Dieu, Nantes, France
- Department of Ophthalmology, Justus-Liebig-University Giessen, Giessen, Germany
| | | | | | | | | |
Collapse
|
7
|
Generation of high-titer neutralizing antibodies against botulinum toxins A, B, and E by DNA electrotransfer. Infect Immun 2009; 77:2221-9. [PMID: 19237523 DOI: 10.1128/iai.01269-08] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Botulinum neurotoxins are known to be among the most toxic known substances. They produce severe paralysis by preventing the release of acetylcholine at the neuromuscular junction. Thus, new strategies for efficient production of safe and effective anti-botulinum neurotoxin antisera have been a high priority. Here we describe the use of DNA electrotransfer into the skeletal muscle to enhance antiserum titers against botulinum toxin serotypes A, B, and E in mice. We treated animals with codon-optimized plasmid DNA encoding the nontoxic but highly immunogenic C-terminal heavy chain fragment of the toxin. By employing both codon optimization and the electrotransfer procedure, the immune response and corresponding neutralizing antiserum titers were markedly increased. The cellular localization of the antigen and the immunization regimens were also shown to increase neutralizing titers to >100 IU/ml. This study demonstrates that DNA electrotransfer is an effective procedure for raising neutralizing antiserum titers to remarkably high levels.
Collapse
|
8
|
Ducès A, Karaky R, Martel-Renoir D, Mir L, Hamma-Kourbali Y, Biéche I, Opolon P, Delbé J, Courty J, Perricaudet M, Griscelli F. 16-kDa fragment of pleiotrophin acts on endothelial and breast tumor cells and inhibits tumor development. Mol Cancer Ther 2008; 7:2817-27. [PMID: 18790762 DOI: 10.1158/1535-7163.mct-08-0301] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pleiotrophin (PTN) is a 136-amino acid secreted heparin-binding protein that is considered as a rate-limiting growth and an angiogenic factor in the onset, invasion, and metastatic process of many tumors. Its mitogenic and tumorigenic activities are mediated by the COOH-terminal residues 111 to 136 of PTN, allowing it to bind to cell surface tyrosine kinase-linked receptors. We investigated a new strategy consisting in evaluating the antitumor effect of a truncated PTN, lacking the COOH-terminal 111 to 136 portion of the molecule (PTNDelta111-136), which may act as a dominant-negative effector for its mitogenic, angiogenic, and tumorigenic activities by heterodimerizing with the wild-type protein. In vitro studies showed that PTNDelta111-136 selectively inhibited a PTN-dependent MDA-MB-231 breast tumor and endothelial cell proliferation and that, in MDA-MB-231 cells expressing PTNDelta111-136, the vascular endothelial growth factor-A and hypoxia-inducible factor-1alpha mRNA levels were significantly decreased by 59% and 71%, respectively, compared with levels in wild-type cells. In vivo, intramuscular electrotransfer of a plasmid encoding a secretable form of PTNDelta111-136 was shown to inhibit MDA-MB-231 tumor growth by 81%. This antitumor effect was associated with the detection of the PTNDelta111-136 molecule in the muscle and tumor extracts, the suppression of neovascularization within the tumors, and a decline in the Ki-67 proliferative index. Because PTN is rarely found in normal tissue, our data show that targeted PTN may represent an attractive and new therapeutic approach to the fight against cancer.
Collapse
Affiliation(s)
- Aurélie Ducès
- INSERM U745, Laboratoire de Génétique Moléculaire, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris V, 4 avenue de l'Observatoire, 75006 Paris, France
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Canstatin gene electrotransfer combined with radiotherapy: preclinical trials for cancer treatment. Gene Ther 2008; 15:1436-45. [DOI: 10.1038/gt.2008.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
10
|
Intrathecal coelectrotransfer of a tetracycline-inducible, three-plasmid-based system to achieve tightly regulated antinociceptive gene therapy for mononeuropathic rats. J Gene Med 2008; 10:208-16. [DOI: 10.1002/jgm.1132] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
11
|
Hojman P, Eriksen J, Gehl J. Tet-On Induction with Doxycycline after Gene Transfer in Mice: Sweetening of Drinking Water is not a Good Idea. Anim Biotechnol 2007; 18:183-8. [PMID: 17612841 DOI: 10.1080/10495390601105055] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Gene transfer to skeletal muscle leads to long-term, stable expression of transferred genes. An exiting development is the use of inducible expression systems. Using the inducible Tet-On system, it has been customary to administer doxycycline in drinking water with added sucrose to ameliorate the bitter taste. During a study aiming at regulating electrotransferred genes through the Tet-On system, we observed excessive drinking behavior among mice. Removal of sugar from the drinking water led to normal drinking behavior and most importantly did not affect the level of gene expression. Based on this study, the practice of adding sucrose to drinking water in doxycycline induction studies should be abandoned.
Collapse
Affiliation(s)
- Pernille Hojman
- Department of Oncology, Copenhagen University Hospital at Herlev, Herlev, Denmark
| | | | | |
Collapse
|
12
|
Meyer M, Wagner E. Recent developments in the application of plasmid DNA-based vectors and small interfering RNA therapeutics for cancer. Hum Gene Ther 2007; 17:1062-76. [PMID: 17032153 DOI: 10.1089/hum.2006.17.1062] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Increased understanding of the molecular pathological mechanisms of cancer, the advent of novel molecular tools such as synthetic small interfering RNA (siRNA) or plasmid DNA-based vectors (pDNA), and technology for the in vivo delivery of such biomolecular therapeutics have provided an encouraging perspective for cancer therapy. Numerous pDNAs and siRNAs have been tested in preclinical cancer models, and these first approaches have reached clinical evaluation. The therapeutic effector mechanisms include interference with neoangiogenesis, blockage of cell division, promotion of apoptosis and sensitization to chemotherapy, delivery of cytotoxic genes, and activation of anticancer immune responses. Physical methods have been developed for highly effective regional delivery. A series of innovative "smart" formulations directs the current development toward safe and effective systemic tumor-targeted delivery of pDNA and siRNA.
Collapse
Affiliation(s)
- Martin Meyer
- Department of Pharmacy, Center of Drug Research, Pharmaceutical Biology-Biotechnology, Ludwig Maximilian University, Munich 81377, Germany
| | | |
Collapse
|
13
|
Meyer M, Wagner E. Recent Developments in the Application of Plasmid DNA-Based Vectors and Small Interfering RNA Therapeutics for Cancer. Hum Gene Ther 2006. [DOI: 10.1089/hum.2006.17.ft-251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
14
|
Abstract
The utilisation of nonviral gene delivery methods has been increasing steadily, however, a drawback has been the relative low efficiency of gene transfer with naked DNA compared with viral delivery methods. In vivo electroporation, which has previously been used clinically to deliver chemotherapeutic agents, also enhances the delivery of plasmid DNA and has been used to deliver plasmids to several tissue types, particularly muscle and tumour. Recently, a large number of preclinical studies for a variety of therapeutic modalities have demonstrated the potential of electrically mediated gene transfer. Although clinical trials using gene transfer with in vivo electroporation have not as yet been realised, the tremendous growth of this technology suggests that the first trials will soon be initiated.
Collapse
MESH Headings
- Animals
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/therapy
- Electroporation
- Erythropoietin/administration & dosage
- Erythropoietin/genetics
- Erythropoietin/metabolism
- Forecasting
- Gene Expression Regulation
- Gene Transfer Techniques
- Genetic Therapy/methods
- Genetic Therapy/trends
- Growth Substances/administration & dosage
- Growth Substances/genetics
- Growth Substances/metabolism
- Hematologic Diseases/genetics
- Hematologic Diseases/metabolism
- Hematologic Diseases/therapy
- Humans
- Injections, Intramuscular
- Interleukin-12/administration & dosage
- Interleukin-12/genetics
- Interleukin-12/metabolism
- Melanoma/genetics
- Melanoma/metabolism
- Melanoma/therapy
- Plasmids/administration & dosage
- Plasmids/genetics
- Plasmids/metabolism
- Protein Deficiency/genetics
- Protein Deficiency/metabolism
- Protein Deficiency/therapy
- Toxins, Biological/administration & dosage
- Toxins, Biological/genetics
- Toxins, Biological/metabolism
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/genetics
- Vaccines, DNA/metabolism
Collapse
Affiliation(s)
- Loree C Heller
- University of South Florida, Center of Molecular Delivery, Department of Medical Microbiology and Immunology, Center for Molecular Delivery, College of Medicine, Tampa, 33612-4799, USA.
| | | | | |
Collapse
|
15
|
Durieux AC, Bonnefoy R, Freyssenet D. Kinetic of transgene expression after electrotransfer into skeletal muscle: Importance of promoter origin/strength. Biochim Biophys Acta Gen Subj 2005; 1725:403-9. [PMID: 16054757 DOI: 10.1016/j.bbagen.2005.06.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2005] [Revised: 06/21/2005] [Accepted: 06/22/2005] [Indexed: 10/25/2022]
Abstract
We determined over a 3-week period some of the factors that may influence the kinetic of gene expression following in vivo gene electrotransfer. Histochemical analysis of beta-galactosidase and biochemical analysis of luciferase expressions were used to determine reporter gene activity in the Tibialis anterior muscles of young Sprague-Dawley male rats. Transfection efficiency peaked 5 days after gene electrotransfer and then exponentially decreased to reach non-detectable levels at day 28. Reduction of muscle damage by decreasing the amount of DNA injected or the cumulated pulse duration did not improve the kinetic of gene expression. Electrotransfer of luciferase expression plasmids driven either by viral or mammalian promoters rather show that most of the decrease in transgene expression was related to promoter origin/strength. By regulating the amount of transgene expression, the promoter origin/strength could modulate the immune response triggered against the foreign protein and ultimately the kinetic of transgene expression.
Collapse
Affiliation(s)
- Anne-Cécile Durieux
- Laboratoire de Physiologie, Unité Physiologie et Physiopathologie de l'Exercice et Handicap, Université Jean Monnet, Faculté de Médecine, 42023 Saint-Etienne, France
| | | | | |
Collapse
|
16
|
Mir LM, Moller PH, André F, Gehl J. Electric pulse-mediated gene delivery to various animal tissues. ADVANCES IN GENETICS 2005; 54:83-114. [PMID: 16096009 DOI: 10.1016/s0065-2660(05)54005-7] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Electroporation designates the use of electric pulses to transiently permeabilize the cell membrane. It has been shown that DNA can be transferred to cells through a combined effect of electric pulses causing (1) permeabilization of the cell membrane and (2) an electrophoretic effect on DNA, leading the polyanionic molecule to move toward or across the destabilized membrane. This process is now referred to as DNA electrotransfer or electro gene transfer (EGT). Several studies have shown that EGT can be highly efficient, with low variability both in vitro and in vivo. Furthermore, the area transfected is restricted by the placement of the electrodes, and is thus highly controllable. This has led to an increasing use of the technology to transfer reporter or therapeutic genes to various tissues, as evidenced from the large amount of data accumulated on this new approach for non-viral gene therapy, termed electrogenetherapy (EGT as well). By transfecting cells with a long lifetime, such as muscle fibers, a very long-term expression of genes can be obtained. A great variety of tissues have been transfected successfully, from muscle as the most extensively used, to both soft (e.g., spleen) and hard tissue (e.g., cartilage). It has been shown that therapeutic levels of systemically circulating proteins can be obtained, opening possibilities for using EGT therapeutically. This chapter describes the various aspects of in vivo gene delivery by means of electric pulses, from important issues in methodology to updated results concerning the electrotransfer of reporter and therapeutic genes to different tissues.
Collapse
Affiliation(s)
- Lluis M Mir
- Laboratory of Vectorology and Gene Transfer, UMR 8121 CNRS Institut Gustave-Roussy, F-94805 Villejuif Cédex, France
| | | | | | | |
Collapse
|
17
|
André F, Mir LM. DNA electrotransfer: its principles and an updated review of its therapeutic applications. Gene Ther 2004; 11 Suppl 1:S33-42. [PMID: 15454955 DOI: 10.1038/sj.gt.3302367] [Citation(s) in RCA: 173] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The use of electric pulses to transfect all types of cells is well known and regularly used in vitro for bacteria and eukaryotic cells transformation. Electric pulses can also be delivered in vivo either transcutaneously or with electrodes in direct contact with the tissues. After injection of naked DNA in a tissue, appropriate local electric pulses can result in a very high expression of the transferred genes. This manuscript describes the evolution in the concepts and the various optimization steps that have led to the use of combinations of pulses that fit with the known roles of the electric pulses in DNA electrotransfer, namely cell electropermeabilization and DNA electrophoresis. A summary of the main applications published until now is also reported, restricted to the in vivo preclinical trials using therapeutic genes.
Collapse
Affiliation(s)
- F André
- Laboratory of Vectorology and Gene Transfer, UMR 8121 CNRS - Institut Gustave-Roussy, Villejuif Cedex, France
| | | |
Collapse
|
18
|
Noël D, Gazit D, Bouquet C, Apparailly F, Bony C, Plence P, Millet V, Turgeman G, Perricaudet M, Sany J, Jorgensen C. Short-term BMP-2 expression is sufficient for in vivo osteochondral differentiation of mesenchymal stem cells. ACTA ACUST UNITED AC 2004; 22:74-85. [PMID: 14688393 DOI: 10.1634/stemcells.22-1-74] [Citation(s) in RCA: 179] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Currently available murine models to evaluate mesenchymal stem cell (MSC) differentiation are based on cell injection at ectopic sites such as muscle or skin. Due to the importance of environmental factors on the differentiation capacities of stem cells in vivo, we investigated whether the peculiar synovial/cartilaginous environment may influence the lineage specificity of bone morphogenetic protein (BMP)-2-engineered MSCs. To this aim, we used the C3H10T1/2-derived C9 MSCs that express BMP-2 under control of the doxycycline (Dox)-repressible promoter, Tet-Off, and showed in vitro, using the micropellet culture system that C9 MSCs kept their potential to differentiate toward chondrocytes. Implantation of C9 cells, either into the tibialis anterior muscles or into the joints of CB17-severe combined immunodeficient bg mice led to the formation of cartilage and bone filled with bone marrow as soon as day 10. However, no differentiation was observed after injection of naïve MSCs or C9 cells that were repressed to secrete BMP-2 by Dox addition. The BMP-2-induced differentiation of adult MSCs is thus independent of soluble factors present in the local environment of the synovial/cartilaginous tissues. Importantly, we demonstrated that a short-term expression of the BMP-2 growth factor is necessary and sufficient to irreversibly induce bone formation, suggesting that a stable genetic modification of MSCs is not required for stem cell-based bone/cartilage engineering.
Collapse
|
19
|
Trochon-Joseph V, Martel-Renoir D, Mir LM, Thomaïdis A, Opolon P, Connault E, Li H, Grenet C, Fauvel-Lafève F, Soria J, Legrand C, Soria C, Perricaudet M, Lu H. Evidence of antiangiogenic and antimetastatic activities of the recombinant disintegrin domain of metargidin. Cancer Res 2004; 64:2062-9. [PMID: 15026344 DOI: 10.1158/0008-5472.can-03-3272] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Metargidin, a transmembrane protein of the adamalysin family, and integrins, e.g., alpha5beta1 and alphav, are preferentially expressed on endothelial cells on angiogenesis. Furthermore, metargidin interacts with these integrins via its disintegrin domain. In this study, recombinant human disintegrin domain (RDD) was produced in Escherichia coli by subcloning its cDNA into the pGEX-2T vector, and the effect of purified RDD on different steps of angiogenesis was evaluated. At concentrations of 2-10 micro g/ml, RDD exhibited inhibitory activities in a variety of in vitro functional assays, including endothelial cell proliferation and adhesion on the integrin substrates fibronectin, vitronectin, and fibrinogen. RDD (10 micro g/ml) totally abrogated endothelial cell migration and blocked most capillary formation in a three-dimensional fibrin gel. To test RDD efficacy in vivo, the RDD gene inserted into pBi vector containing a tetracycline-inducible promoter was electrotransferred into nude mouse muscle. RDD was successfully synthesized by muscle cells in vivo as shown by immunolabeling and Western blotting. In addition, 78% less MDA-MB-231 tumor growth, associated with strong inhibition of tumor angiogenesis, was observed in athymic mice bearing electrotransferred RDD. Moreover, in the presence of RDD, 74% fewer B16F10 melanoma lung metastases were found in C57BL/6 mice. Taken together, these results identified this RDD as a potent intrinsic inhibitor of angiogenesis, tumor growth, and metastasis, making it a promising tool for use in anticancer treatment.
Collapse
MESH Headings
- ADAM Proteins
- Animals
- Antineoplastic Agents/therapeutic use
- Apoptosis/drug effects
- Cell Adhesion/drug effects
- Cell Division/drug effects
- Cell Movement/drug effects
- Disintegrins/therapeutic use
- Dose-Response Relationship, Drug
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/pathology
- Escherichia coli/genetics
- Female
- Lung Neoplasms/blood supply
- Lung Neoplasms/prevention & control
- Lung Neoplasms/secondary
- Melanoma, Experimental/blood supply
- Melanoma, Experimental/prevention & control
- Melanoma, Experimental/secondary
- Membrane Proteins/therapeutic use
- Metalloendopeptidases/therapeutic use
- Mice
- Mice, Inbred C57BL
- Mice, Nude
- Muscle, Skeletal/pathology
- Neovascularization, Pathologic/prevention & control
- Recombinant Proteins/therapeutic use
- Tumor Cells, Cultured
Collapse
|
20
|
Wagner E, Kircheis R, Walker GF. Targeted nucleic acid delivery into tumors: new avenues for cancer therapy. Biomed Pharmacother 2004; 58:152-61. [PMID: 15082337 DOI: 10.1016/j.biopha.2004.01.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2003] [Indexed: 12/01/2022] Open
Abstract
Unique properties of tumors, such as abnormalities in the cell cycle and apoptosis, migration and metastasis, neoangiogenesis or unique antigen profiles are targets for therapeutic anti-cancer strategies. Beyond the selection of such strategies, additional specificity for the targeted tumor tissue can be accomplished in cancer gene therapy in several ways. Upon systemic administration, appropriately packaged therapeutic nucleic acid may be preferentially transported into the tumor tissue (targeted delivery); formulation can mediate the intracellular uptake of the nucleic acid into the nucleus of target cells only (transductional targeting); and/or the use of specific promotor/enhancer elements can restrict transcription of therapeutic genes to the target cells only (transcriptional targeting). Options for physical and biological targeting of nucleic acid formulations into tumors and therapeutic approaches are reviewed.
Collapse
Affiliation(s)
- Ernst Wagner
- Pharmaceutical Biology-Biotechnology, Department of Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 Munich, Germany.
| | | | | |
Collapse
|