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Use of rhenium-188 for in vivo imaging and treatment of human cervical cancer cells transfected with lentivirus expressing sodium iodide symporter. Oncol Rep 2016; 36:2289-97. [PMID: 27573304 DOI: 10.3892/or.2016.5034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 08/16/2016] [Indexed: 11/05/2022] Open
Abstract
Although survival rates for cervical cancer have improved, they need further improvement in patients with distant metastases. The sodium iodine symporter (NIS) gene has often been used in cancer therapy and imaging. We examined the therapeutic effects of rhenium-188 (188Re) in a cervical cancer xenograft model expressing the NIS gene under the control of the tumor-specific human telomerase reverse transcriptase (hTERT) promoter. We constructed two recombinant lentiviral vectors expressing enhanced green fluorescent protein (eGFP) or the NIS gene driven by the hTERT promoter. To determine the tumor-specific transcriptional activity of the hTERT promoter, the eGFP-expressing vector was stably transfected into tumor cells and normal cells. A cervical cancer HeLa cell line stably expressing NIS (HeLa-TERTNIS) was created and examined in a similar way. HeLa and HeLa-TERTNIS tumor xenografts were transplanted in nude mice, and in vivo 188Re distribution was measured using micro-SPECT/CT imaging. The therapeutic effects of 188Re were assessed over 21 days on the basis of tumor volume and the immunohistochemical findings of excised tumors. eGFP expression controlled by the hTERT promoter was substantially higher in the tumor cells than normal cells. Quantitative PCR and western blotting confirmed that HeLa-TERTNIS cells expressed high levels of NIS mRNA and protein, respectively. Further, 188Re uptake and accumulation were significantly higher in HeLa-TERTNIS cells and xenografts than HeLa cells and xenografts. In vitro and in vivo, 188Re significantly reduced the survival of HeLa-TERTNIS cells and inhibited the growth of HeLa-TERTNIS xenografts, respectively. Immunohistochemical staining showed that HeLa-TERTNIS xenograft tumors expressed higher levels of NIS and caspase-3 and lower levels of Ki-67 than HeLa xenograft tumors. Our findings indicated that hTERT promoter-driven expression of the NIS gene in HeLa cells led to 188Re uptake and therapeutic effects. Thus, NIS-based gene therapy and imaging using the hTERT promoter and 188Re may be possible.
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Liu X, Yin F, Zhu Z, Hou D, Wang J, Zhang L, Wang M, Wang H, Hu Z, Deng F. Genomic sequencing and analysis of Sucra jujuba nucleopolyhedrovirus. PLoS One 2014; 9:e110023. [PMID: 25329074 PMCID: PMC4201490 DOI: 10.1371/journal.pone.0110023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 09/08/2014] [Indexed: 11/19/2022] Open
Abstract
The complete nucleotide sequence of Sucra jujuba nucleopolyhedrovirus (SujuNPV) was determined by 454 pyrosequencing. The SujuNPV genome was 135,952 bp in length with an A+T content of 61.34%. It contained 131 putative open reading frames (ORFs) covering 87.9% of the genome. Among these ORFs, 37 were conserved in all baculovirus genomes that have been completely sequenced, 24 were conserved in lepidopteran baculoviruses, 65 were found in other baculoviruses, and 5 were unique to the SujuNPV genome. Seven homologous regions (hrs) were identified in the SujuNPV genome. SujuNPV contained several genes that were duplicated or copied multiple times: two copies of helicase, DNA binding protein gene (dbp), p26 and cg30, three copies of the inhibitor of the apoptosis gene (iap), and four copies of the baculovirus repeated ORF (bro). Phylogenetic analysis suggested that SujuNPV belongs to a subclade of group II alphabaculovirus, which differs from other baculoviruses in that all nine members of this subclade contain a second copy of dbp.
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Affiliation(s)
- Xiaoping Liu
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Feifei Yin
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Zheng Zhu
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Dianhai Hou
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Jun Wang
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Lei Zhang
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Manli Wang
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Hualin Wang
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Zhihong Hu
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Fei Deng
- State Key Laboratory of Virology, Virus Resource and Bioinformatics Center, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
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Guo R, Zhang M, Xi Y, Ma Y, Liang S, Shi S, Miao Y, Li B. Theranostic studies of human sodium iodide symporter imaging and therapy using 188Re: a human glioma study in mice. PLoS One 2014; 9:e102011. [PMID: 25000403 PMCID: PMC4084984 DOI: 10.1371/journal.pone.0102011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 06/13/2014] [Indexed: 11/18/2022] Open
Abstract
Objective To investigate the role of 188Re in human sodium iodide symporter (hNIS) theranostic gene-mediated human glioma imaging and therapy in model mice. Methods The human glioma cell line U87 was transfected with recombinant lentivirus encoding the hNIS gene under the control of cytomegalovirus promoter (U87-hNIS). The uptake and efflux of 188Re were determined after incubating the cells with 188Re. 188Re uptake experiments in the presence of various concentrations of sodium perchlorate were carried out. In vitro cell killing tests with 188Re were performed. U87-hNIS mediated 188Re distribution, imaging and therapy in nude mice were also tested. Results U87-hNIS cell line was successfully established. The uptake of 188Re in U87-hNIS cells increased up to 26-fold compared to control cells, but was released rapidly with a half-life of approximately 4 minutes. Sodium perchlorate reduced hNIS-mediated 188Re uptake to levels of control cell lines. U87-hNIS cells were selectively killed following exposure to 188Re, with a survival of 21.4%, while control cells had a survival of 92.1%. Unlike in vitro studies, U87-hNIS tumor showed a markedly increased 188Re retention even 48 hours after 188Re injection. In the therapy study, there was a significant difference in tumor size between U87-hNIS mice (317±67 mm3) and control mice (861±153 mm3) treated with 188Re for 4 weeks (P<0.01). Conclusion The results indicate that inserting the hNIS gene into U87 cells is sufficient to induce specific 188Re uptake, which has a cell killing effect both in vitro and in vivo. Moreover, our study, based on the function of hNIS as a theranostic gene allowing noninvasive imaging of hNIS expression by 188Re scintigraphy, provides detailed characterization of in vivo vector biodistribution and level, localization, essential prerequisites for precise planning and monitoring of clinical gene therapy that aims to individualize gene therapy concept.
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Affiliation(s)
- Rui Guo
- Department of Nuclear Medicine, Rui Jin Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - M. Zhang
- Department of Nuclear Medicine, Rui Jin Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - Yun Xi
- Department of Nuclear Medicine, Rui Jin Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - Yufei Ma
- Department of Nuclear Medicine, Xin Hua Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - Sheng Liang
- Department of Nuclear Medicine, Xin Hua Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - Shuo Shi
- Department of Nuclear Medicine, Rui Jin Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - Ying Miao
- Department of Nuclear Medicine, Rui Jin Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
| | - Biao Li
- Department of Nuclear Medicine, Rui Jin Hospital, School of medicine, Shanghai JiaoTong University, Shanghai, China
- * E-mail:
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Yue KL, Tang H, Guo Q. Construction of a eukaryotic expression vector expressing FOXQ1 and its expression in colorectal cancer cell line Colo-320. Shijie Huaren Xiaohua Zazhi 2013; 21:1966-1971. [DOI: 10.11569/wcjd.v21.i20.1966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To construct a eukaryotic expression vector expressing FOXQ1 (pAcGFP1-N1-FOXQ1) and investigate its transient expression in colorectal cancer cell line Colo-320.
METHODS: The full-length FOXQ1 cDNA sequence was amplified from the plasmid containing full-length FOXQ1 cDNA (NM_033260) and inserted into eukaryotic expression vector pAcGFP1-N1. The resulting pAcGFP1-N1-FOXQ1 plasmid was identified by PCR, double digestion and DNA sequencing. The constructed plasmid was then transfected into colorectal cancer cell line Colo-320 using Lipofectamine 2000, and transfection efficiency was assessed by fluorescence microscopy. The expression level of FOXQ1 protein was detected by Western blot.
RESULTS: Eukaryotic expression vector pAcGFP1-N1-FOXQ1 was constructed successfully and verified by PCR, double digestion and DNA sequencing. The constructed vector could express mature FOXQ1 protein correctly in colorectal cancer cell line Colo-320.
CONCLUSION: Successful construction of the eukaryotic expression vector pAcGFP1-N1-FOXQ1 provides an experimental basis for further study of functions of the FOXQ1 gene in tumorigenesis.
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Adaptive immune responses elicited by baculovirus and impacts on subsequent transgene expression in vivo. J Virol 2013; 87:4965-73. [PMID: 23408634 DOI: 10.1128/jvi.03510-12] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Baculovirus (BV) is a promising gene therapy vector and typically requires readministration because BV mediates transient expression. However, how the prime-boost regimen triggers BV-specific adaptive responses and their impacts on BV readministration, transgene expression, and therapeutic/vaccine efficacy remain unknown. Here we unraveled that BV injection into BALB/c mice induced the production of BV-specific antibodies, including IgG1 and IgG2a, which could neutralize BV by antagonizing the envelope protein gp64 and impede BV-mediated transgene expression. Moreover, humans did not possess preexisting anti-BV antibodies. BV injection also elicited BV-specific Th1 and Th2 responses as well as CD4(+) and CD8(+) T cell responses. gp64 was a primary immunogen to activate the antibody and CD8(+) T cell response, with its peptide at positions 457 to 465 (peptide 457-465) being the major histocompatibility complex (MHC) class I epitope to stimulate CD8(+) T cell and cytotoxic responses. Nonetheless, a hybrid Sleeping Beauty-based BV enabled long-term expression for >1 year by a single injection, indicating that the T cell responses did not completely eradicate BV-transduced cells and implicating the potential of this hybrid BV vector for gene therapy. These data unveil that BV injection triggers adaptive immunity and benefit rational design of BV administration schemes for gene therapy and vaccination.
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RNAi-based therapies for Huntington's disease: delivery challenges and opportunities. Ther Deliv 2012; 3:1061-76. [PMID: 23035592 DOI: 10.4155/tde.12.80] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Huntington's disease (HD) is a polyglutamine neurodegenerative disease caused by a mutation in the HTT gene coding for the Huntingtin protein (HTT). Unfortunately, there is no cure for HD and there is also no known way to modify the disease progression. RNAi approaches offer the promise of a certain degree of control over the disease. However, there are several challenges in potential use of RNAi in the treatment of HD. This article will discuss the details of RNAi technology as applied to the treatment of HD, and novel approaches to overcome the drug delivery challenges.
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Li G, Xiang L, Yang W, Wang Z, Wang J, Chen K. Efficient multicistronic co-expression of hNIS and hTPO in prostate cancer cells for nonthyroidal tumor radioiodine therapy. AMERICAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 2012; 2:483-498. [PMID: 23145364 PMCID: PMC3484425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 08/24/2012] [Indexed: 06/01/2023]
Abstract
Radioiodine therapy has proven to be a safe and effective approach in the treatment of differentiated thyroid cancer. Similar treatment strategies have been exploited in nonthyroidal malignancies by transfecting hNIS gene into tumor cells or xenografts. However, rapid radioiodine efflux is often observed after radioiodine uptake, limiting the overall antitumor effects. In this study, we aimed at constructing multicistronic co-expression of hNIS and hTPO genes in tumor cells to enhance the radioiodine uptake and prolong the radioiodine retention. Driven by the cytomegalovirus promoter, hNIS and hTPO were simultaneously inserted into the expression cassette of adenoviral vector. An Ad5 viral vector (Ad-CMV-hTPO-T2A-hNIS) was assembled as a gene therapy vehicle by Gateway technology and 2A method. The co-expression of hNIS and hTPO genes was confirmed by a double-label immunofluorescence assay. The radioiodine ((125)I) uptake and efflux effects induced by co-expression of hNIS and hTPO genes were determined in transfected and non-transfected PC-3 cells. Significantly higher uptake (6.58 ± 0.56 fold, at 1 h post-incubation) and prolonged retention (5.47 ± 0.36 fold, at 1 h of cell efflux) of radioiodine ((125)I) were observed in hNIS and hTPO co-expressed PC-3 cells as compared to non-transfected PC-3 cells. We concluded that the new virus vector displayed favorable radioiodine uptake and retention properties in hNIS-hTPO transfected PC-3 cells. Our study will provide valuable information on improving the efficacy of hNIS-hTPO co-mediated radioiodine gene therapy.
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Affiliation(s)
- Guoquan Li
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical UniversityXi’an, Shaanxi, China, 710032
- Molecular Imaging Center, Department of Radiology, Keck School of Medicine, University of Southern CaliforniaCA 90033, USA
| | - Lei Xiang
- Department of Pediatrics, Shaanxi Maternal and Child Care Service CenterXi’an, Shaanxi, China, 710003
| | - Weidong Yang
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical UniversityXi’an, Shaanxi, China, 710032
| | - Zhe Wang
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical UniversityXi’an, Shaanxi, China, 710032
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, The Fourth Military Medical UniversityXi’an, Shaanxi, China, 710032
| | - Kai Chen
- Molecular Imaging Center, Department of Radiology, Keck School of Medicine, University of Southern CaliforniaCA 90033, USA
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Thumbi DK, Eveleigh RJM, Lucarotti CJ, Lapointe R, Graham RI, Pavlik L, Lauzon HAM, Arif BM. Complete sequence, analysis and organization of the Orgyia leucostigma nucleopolyhedrovirus genome. Viruses 2011; 3:2301-27. [PMID: 22163346 PMCID: PMC3230853 DOI: 10.3390/v3112301] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 10/25/2011] [Accepted: 10/25/2011] [Indexed: 11/16/2022] Open
Abstract
The complete genome of the Orgyia leucostigma nucleopolyhedrovirus (OrleNPV) isolated from the whitemarked tussock moth (Orgyia leucostigma, Lymantridae: Lepidoptera) was sequenced, analyzed, and compared to other baculovirus genomes. The size of the OrleNPV genome was 156,179 base pairs (bp) and had a G+C content of 39%. The genome encoded 135 putative open reading frames (ORFs), which occupied 79% of the entire genome sequence. Three inhibitor of apoptosis (ORFs 16, 43 and 63), and five baculovirus repeated ORFs (bro-a through bro-e) were interspersed in the OrleNPV genome. In addition to six direct repeat (drs), a common feature shared among most baculoviruses, OrleNPV genome contained three homologous regions (hrs) that are located in the latter half of the genome. The presence of an F-protein homologue and the results from phylogenetic analyses placed OrleNPV in the genus Alphabaculovirus, group II. Overall, OrleNPV appears to be most closely related to group II alphabaculoviruses Ectropis obliqua (EcobNPV), Apocheima cinerarium (ApciNPV), Euproctis pseudoconspersa (EupsNPV), and Clanis bilineata (ClbiNPV).
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Affiliation(s)
- David K. Thumbi
- Sylvar Technologies Inc., P.O. Box 636 Station A, Fredericton, New Brunswick, E3B 5A6, Canada; E-Mails: (D.K.T.); (R.J.M.E); (R.L.)
| | - Robert J. M. Eveleigh
- Sylvar Technologies Inc., P.O. Box 636 Station A, Fredericton, New Brunswick, E3B 5A6, Canada; E-Mails: (D.K.T.); (R.J.M.E); (R.L.)
| | - Christopher J. Lucarotti
- Natural Resources Canada, Atlantic Forestry Centre, Canadian Forest Service, 1350 Regent Street, Fredericton, New Brunswick, E3C 2G6, Canada
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-506-452-3538; Fax: +1-506-452-3538
| | - Renée Lapointe
- Sylvar Technologies Inc., P.O. Box 636 Station A, Fredericton, New Brunswick, E3B 5A6, Canada; E-Mails: (D.K.T.); (R.J.M.E); (R.L.)
| | - Robert I. Graham
- Lancaster Environment Centre, Lancaster University, Lancaster, Lancashire, LA1 4YQ, UK; E-Mails:
| | - Lillian Pavlik
- Natural Resources Canada, Great Lakes Forestry Centre, Canadian Forest Service, 1219 Queen Street East, Sault Ste. Marie, Ontario, P6A 2E5, Canada; E-Mails: (L.P); (H.A.M.L.); (B.M.A.)
| | - Hilary A. M. Lauzon
- Natural Resources Canada, Great Lakes Forestry Centre, Canadian Forest Service, 1219 Queen Street East, Sault Ste. Marie, Ontario, P6A 2E5, Canada; E-Mails: (L.P); (H.A.M.L.); (B.M.A.)
| | - Basil M. Arif
- Natural Resources Canada, Great Lakes Forestry Centre, Canadian Forest Service, 1219 Queen Street East, Sault Ste. Marie, Ontario, P6A 2E5, Canada; E-Mails: (L.P); (H.A.M.L.); (B.M.A.)
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Wu JB, Dang T, Chen XQ, Zhang ZS, Zhang HQ, Song YG. Construction of a eukaryotic green fluorescent protein expression vector carrying the PAK-1 gene (pEGFP-C1/PAK1) and its expression in SW480 cells. Shijie Huaren Xiaohua Zazhi 2011; 19:2730-2734. [DOI: 10.11569/wcjd.v19.i26.2730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To construct a recombinant eukaryotic fluorescent expression plasmid containing the coding region of p21-activated kinase-1 (PAK-1) gene and to detect its expression in SW480 cells.
METHODS: Total RNA was extracted from human colorectal carcinoma cell line SW620 and used to amplify the PAK1 gene fragment by reverse transcription-polymerase chain reaction (RT-PCR). The resulting PCR product was inserted into the plasmid pEGFP-C1 after restriction endonuclease digestion and ligation. After verifying the correct insertion of the DNA fragment by endonuclease digestion and direct sequencing, the recombinant plasmid was transfected into SW480 cells to detect its expression in vitro.
RESULTS: The sequence of the recombinant plasmid was verified by restriction digestion and DNA sequence analysis, and the target protein expression was detected in the cell cytoplasm of SW480 cells.
CONCLUSION: A recombinant eukaryotic fluorescent expression vector carrying the PAK-1 gene (pEGFP-C1/PAK1) has been constructed successfully and provides a potent tool to investigate the role of PAK-1 in colorectal carcinoma.
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Chen CY, Lin CY, Chen GY, Hu YC. Baculovirus as a gene delivery vector: recent understandings of molecular alterations in transduced cells and latest applications. Biotechnol Adv 2011; 29:618-31. [PMID: 21550393 PMCID: PMC7126054 DOI: 10.1016/j.biotechadv.2011.04.004] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 04/15/2011] [Accepted: 04/15/2011] [Indexed: 12/13/2022]
Abstract
Baculovirus infects insects in nature and is non-pathogenic to humans, but can transduce a broad range of mammalian and avian cells. Thanks to the biosafety, large cloning capacity, low cytotoxicity and non-replication nature in the transduced cells as well as the ease of manipulation and production, baculovirus has gained explosive popularity as a gene delivery vector for a wide variety of applications. This article extensively reviews the recent understandings of the molecular mechanisms pertinent to baculovirus entry and cellular responses, and covers the latest advances in the vector improvements and applications, with special emphasis on antiviral therapy, cancer therapy, regenerative medicine and vaccine.
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Affiliation(s)
- Chi-Yuan Chen
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
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