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Lee SJ, Shin SP, Lee SH, Kang JW, Kook MC, Kim IH, Kim HK. Phase I trial of intravenous Ad5CRT in patients with liver metastasis of gastrointestinal cancers. Cancer Gene Ther 2018; 26:174-178. [PMID: 30393375 DOI: 10.1038/s41417-018-0055-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/12/2018] [Accepted: 10/20/2018] [Indexed: 11/09/2022]
Abstract
We conducted a phase 1 trial for single-dose intravenous Ad5CRT, a replication-defective adenovirus vector expressing HSVtk (herpes simplex virus thymidine kinase) modulated by a specific trans-splicing ribozyme that targets human telomerase reverse transcriptase (hTERT)-encoding RNAs. Dose-limiting toxicities (DLTs) were evaluated in 15 patients at dose levels of 0.1-2 × 1012 virus particles. Patients well tolerated study treatment. During the DLT evaluation period, none of the 15 patients developed any grade 4 toxicities or treatment discontinuation that was related to agents investigated by this trial. The most frequent treatment-related adverse event was fever/chill (26.7%). Of the 18 patients, no patients achieved a partial or complete response, and the median progression-free survival for 18 patients was 1.1 months (95% CI, 1.0-1.3) and the results suggest no clinical benefit from this treatment. Ad5CRT's circulating virus half-life was approximately 10 min. Maximum tolerated dose was 2 × 1012 virus particles. Single-dose intravenous Ad5CRT was feasible and well tolerated in patients with gastrointestinal cancer liver metastasis. Ad5CRT did not provide meaningful clinical benefit, and the reason for the lack of efficacy was not entirely clear because no pharmocodynamic assessment was made.
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Affiliation(s)
- Sang-Jin Lee
- National Cancer Center, Goyang, Gyeonggi, 10408, Republic of Korea
| | - Seung-Pil Shin
- National Cancer Center, Goyang, Gyeonggi, 10408, Republic of Korea
| | - Seung Hee Lee
- National Cancer Center, Goyang, Gyeonggi, 10408, Republic of Korea
| | - Jeong Won Kang
- National Cancer Center, Goyang, Gyeonggi, 10408, Republic of Korea
| | | | - In-Hoo Kim
- National Cancer Center, Goyang, Gyeonggi, 10408, Republic of Korea.,National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Gyeonggi, 10408, Republic of Korea
| | - Hark Kyun Kim
- National Cancer Center, Goyang, Gyeonggi, 10408, Republic of Korea. .,National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Gyeonggi, 10408, Republic of Korea.
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Kim SY, Kwon WA, Shin SP, Seo HK, Lim SJ, Jung YS, Han HK, Jeong KC, Lee SJ. Electrostatic interaction of tumor-targeting adenoviruses with aminoclay acquires enhanced infectivity to tumor cells inside the bladder and has better cytotoxic activity. Drug Deliv 2018; 25:49-58. [PMID: 29224371 PMCID: PMC6058485 DOI: 10.1080/10717544.2017.1413450] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
In a previous report, 3-aminopropyl functionalized magnesium phyllosilicate (aminoclay) improved adenovirus transduction efficiency by shielding the negative surface charges of adenovirus particles. The present study analyzed the physicochemical characterization of the electrostatic complex of adenoviruses with aminoclay and explored whether it could be utilized for enhancing tumor suppressive activity in the bladder. As a result of aminoclay-adenovirus nanobiohybridization, its transduction was enhanced in a dose-dependent manner, increasing transgene expression in bladder cancer cells and in in vivo animal models. Physicochemical studies demonstrated that positively charged aminoclay led to the neutralization of negative surface charges of adenoviruses, protection of adenoviruses from neutralizing antibodies and lowered transepithelial electrical resistance (TEER). As expected from the physicochemical properties, the aminoclay enabled tumor-targeting adenoviruses to be more potent in killing bladder cancer cells and suppressing tumor growth in orthotopic bladder tumors, suggesting that aminoclay would be an efficient, versatile and biocompatible delivery carrier for intravesical instillation of adenoviruses.
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Affiliation(s)
- Soo-Yeon Kim
- a Immunotherapeutics Branch , Research Institute, National Cancer Center , Goyang , Gyeonggi-do , Korea
| | - Whi-An Kwon
- b School of Medicine , Institute of Wonkwang Medical Science, Wonkwang University, Wonkwang Univ. Sanbon Hospital , Sanbon , Korea
| | - Seung-Pil Shin
- a Immunotherapeutics Branch , Research Institute, National Cancer Center , Goyang , Gyeonggi-do , Korea
| | - Ho Kyung Seo
- c Biomarker Branch, Research Institute , National Cancer Center, Center for Prostate Cancer, Hospital , Goyang , Gyeonggi-do , Korea
| | - Soo-Jeong Lim
- d Department of Bioscience and Bioengineering , Sejong University , Seoul , Korea
| | - Yuh-Seog Jung
- a Immunotherapeutics Branch , Research Institute, National Cancer Center , Goyang , Gyeonggi-do , Korea
| | - Hyo-Kyung Han
- e College of Pharmacy , Dongguk University-Seoul , Goyang , Gyeonggi-do , Korea
| | - Kyung-Chae Jeong
- f Translational Research Branch , Research Institute, National Cancer Center , Goyang , Gyeonggi-do , Korea
| | - Sang-Jin Lee
- a Immunotherapeutics Branch , Research Institute, National Cancer Center , Goyang , Gyeonggi-do , Korea
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Shin SP, Shirakashi S. Investigation of Kudoa yasunagai (Hsieh & Chen, 1984) infection kinetics in Seriola lalandi (Valenciennes, 1833) by quantitative PCR. J Fish Dis 2017; 40:287-291. [PMID: 27260675 DOI: 10.1111/jfd.12507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 04/27/2016] [Accepted: 04/27/2016] [Indexed: 06/05/2023]
Affiliation(s)
- S P Shin
- Aquaculture Research Institute, Kindai University, Wakayama, Japan
| | - S Shirakashi
- Aquaculture Research Institute, Kindai University, Wakayama, Japan
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Goh AR, Shin SP, Jung NR, Ryu CH, Eom HS, Lee JH, Choi K, Lee SJ, Jung YS. Low-dose cisplatin converts the tumor microenvironment into a permissive state for HSVtk-induced antitumor immunity in HPV16-related tonsillar carcinoma. Cancer Lett 2014; 356:743-50. [PMID: 25449436 DOI: 10.1016/j.canlet.2014.10.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/20/2014] [Accepted: 10/22/2014] [Indexed: 02/05/2023]
Abstract
An adenovirus harboring the HSV thymidine kinase (HSVtk) gene under the regulation of a trans-splicing ribozyme that targets telomerase is cytotoxic to cancer cells because it inhibits DNA replication (Ad5mTR). Furthermore, it induces anti-tumor immunity by activating cytotoxic T cells. Because multiple chemotherapeutic agents also activate cytotoxic T-cell immunity during the direct killing process of tumor cells, we herein explored whether low-dose cisplatin could synergize with cytotoxic Ad5mTR to potentiate its therapeutic effect by boosting anti-tumor immunity in a murine HPV16-associated tonsillar carcinoma model. Tumor regression was enhanced when low-dose (1 mg/kg) cisplatin was added to suicide gene therapy using Ad5mTR. Meanwhile, 1 mg/kg cisplatin alone had no tumor-suppressive effects and did not result in any systemic toxicity. Thus, cisplatin along with Ad5mTR improved tumor clearance by increasing the number of E7-specific CD8+ T cells. Specifically, analysis of the tumors and lymph nodes supported improved immune clearance by increasing the number of E7-specific CD8+ T cells inside tumors (40%, P < 0.05) as a result of the combination of suicide gene and cisplatin therapy. These results suggest that a low dose of cisplatin potentiates CD8+ T-cell-mediated anti-tumor immunity, and its addition to the HSVtk-based adenovirus results in additional therapeutic benefits for HPV16-positive head and neck cancer patients.
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Affiliation(s)
| | | | | | - Chang-Hwan Ryu
- Specific Organs Cancer Branch, Department of Otolaryngology
| | - Hyeon Seok Eom
- Hematologic-Oncology, Research Institute & Hospital, National Cancer Center, Goyang, South Korea
| | - John H Lee
- Sanford Cancer Research Center, Sanford ENT - Head and Neck Surgery, Sioux Falls, South Dakota
| | - Kyungho Choi
- Seoul National University College of Medicine, Seoul, South Korea
| | | | - Yuh-S Jung
- Specific Organs Cancer Branch, Department of Otolaryngology.
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Kim JH, Son JS, Choi YJ, Choresca CH, Shin SP, Han JE, Jun JW, Kang DH, Oh C, Heo SJ, Park SC. Isolation and characterization of a lytic Myoviridae bacteriophage PAS-1 with broad infectivity in Aeromonas salmonicida. Curr Microbiol 2012; 64:418-26. [PMID: 22314935 DOI: 10.1007/s00284-012-0091-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Accepted: 01/18/2012] [Indexed: 10/14/2022]
Abstract
To search for candidate control agents against Aeromonas salmonicida subsp. salmonicida infections in aquaculture, one bacteriophage (phage), designated as PAS-1, was isolated from the sediment samples of the rainbow trout (Oncorhynchus mykiss) culture farm in Korea. The PAS-1 was morphologically classified as Myoviridae and possessed approximately 48 kb of double-strand genomic DNA. The phage showed broad host ranges to other subspecies of A. salmonicida as well as A. salmonicida subsp. salmonicida including antibiotic-resistant strains. Its latent period and burst size were estimated to be approximately 40 min and 116.7 PFU/cell, respectively. Furthermore, genomic and structural proteomic analysis of PAS-1 revealed that the phage was closely related to other Myoviridae phages infecting enterobacteria or Aeromonas species. The bacteriolytic activity of phage PAS-1 was evaluated using three subspecies of A. salmonicida strain at different doses of multiplicity of infection, and the results proved to be efficient for the reduction of bacterial growth. Based on these results, PAS-1 could be considered as a novel Aeromonas phage and might have potentiality to reduce the impacts of A. salmonicida infections in aquaculture.
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Affiliation(s)
- J H Kim
- Laboratory of Aquatic Animal Medicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-742, Republic of Korea
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Lee SJ, Kim SJ, Seo HH, Shin SP, Kim D, Park CS, Kim KT, Kim YH, Jeong JS, Kim IH. Over-expression of miR-145 enhances the effectiveness of HSVtk gene therapy for malignant glioma. Cancer Lett 2012; 320:72-80. [PMID: 22269208 DOI: 10.1016/j.canlet.2012.01.029] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 01/10/2012] [Accepted: 01/16/2012] [Indexed: 01/03/2023]
Abstract
This study attempts to combine two findings toward developing a rational strategy for improved therapy for glioma. One of the findings, made in this pre-clinical study, is that an hTERT-targeting ribozyme-controlled HSVtk gene (hTERT.Rz.HSVtk) exerts anti-tumor effects. The second observation is that the over-expression of a small noncoding RNA, miR-145, causes down-regulation of metastasis-related genes, such as PLAUR, SPOCK3, ADAM22, SLC7A5 and FASCN1. While blocking in vivo tumor growth only slightly, over-expression of miR-145 significantly inhibits both the migration and invasion of U87MG/U373MG glioma cells. We hypothesized that a simultaneous adenoviral-mediated over-expression of miR-145 might enhance the anti-tumor effects of hTERT.Rz.HSVtk and that a combination therapy with miR-145 and the HSVtk gene would be an effective approach for treating glioma. We tested this by developing adenoviral vectors that over-express miR-145 under the CMV promoter and employing them in combination with hTERT.Rz.HSVtk expression, both in vitro and in vivo in animal studies. We found that the adenovirus Ad5CMV.Rz.HSVtk.miR145 harboring an HSVtk expression cassette plus miR-145 produced prolonged survival benefits compared to administration of Ad5CMV.Rz.HSVtk or Ad5CMV.miR-145 alone. This study demonstrates that combination therapy using the hTERT.Rz.HSVtk gene together with miR-145 over-expression produces enhanced anti-tumor effects compared to that resulting from hTERT.Rz.HSVtk gene therapy alone.
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Affiliation(s)
- Sang-Jin Lee
- Genitourinary Cancer Branch, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea.
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Ahn YH, Yi H, Shin JY, Lee KD, Shin SP, Lee SJ, Song J, Chun KH. STAT3 silencing enhances the efficacy of the HSV.tk suicide gene in gastrointestinal cancer therapy. Clin Exp Metastasis 2012; 29:359-69. [PMID: 22350508 DOI: 10.1007/s10585-012-9458-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Accepted: 02/01/2012] [Indexed: 02/03/2023]
Abstract
Aberrant activation of Signal Transducer and Activator of Transcription 3 (STAT3) signaling has been shown to be associated with uncontrolled cell proliferation and suppression of host-immune surveillance. Conversely, silencing STAT3 can have the dual effects of inhibiting cancer cell proliferation and inducing anti-tumor immune responses. Here, we report on the effects of STAT3 silencing on suicide gene therapy with thymidine kinase (tk). STAT3 silencing by siRNA inhibited the proliferation of AGS human gastric cancer cells through G1 cell cycle arrest, decreased levels of immune-suppressive cytokines, and increased levels of immune-activating cytokines. CT26 mouse colon adenocarcinoma cells, in which STAT3 expression was knocked-down by a STAT3 shRNA-containing lentivirus, grew more slowly in syngenic model Balb/c mice than control CT26 cells. Moreover, we found that STAT3 silencing augmented the efficacy of suicide gene therapy in CT26 cell xenografted mice. When we administrated adenoviruses harboring the herpes simplex virus thymidine kinase gene (Ad5.CMV.HSV.tk) into STAT3-silenced CT26 cell tumors, extensive apoptosis was observed and there was a significant reduction in the size of CT26 cell tumors. STAT3 silencing also enhanced the recruitment and cytotoxic activity of CD3(+)CD8(+) T-cells, and changed the cytokine expression pattern of CT26 cell tumors, reflecting augmentation of anti-cancer immune responses. We conclude that combining suicide gene therapy with STAT3 silencing can result in enhanced anti-cancer effects.
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Affiliation(s)
- Ye-Hyeon Ahn
- Gastric Cancer Branch, Division of Translational & Clinical Research I, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-769, Republic of Korea
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Kim JH, Kim HK, Nguyen VG, Park BK, Choresca CH, Shin SP, Han JE, Jun JW, Park SC. Genomic sequence of infectious hypodermal and hematopoietic necrosis virus (IHHNV) KLV-2010-01 originating from the first Korean outbreak in cultured Litopenaeus vannamei. Arch Virol 2011; 157:369-73. [PMID: 22038073 DOI: 10.1007/s00705-011-1155-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Accepted: 10/17/2011] [Indexed: 11/25/2022]
Abstract
Due to the need to track and monitor genetic diversity, the genome of the infectious hypodermal and hematopoietic necrosis virus (IHHNV) strain KLV-2010-01 in cultured Litopenaeus vannamei shrimp that originated from the first Korean outbreak in 2010 was sequenced and analyzed. The genome, with a length of 3914 nucleotides, was sequenced from the Korean IHHNV. The genome encoded three large and overlapping open reading frames: ORF1 (NS-1) of 2001 bp, ORF2 (NS-2) of 1092 bp and ORF3 (capsid protein) of 990 bp. The overall organization, size and predicted amino acid sequence of the three ORFs in Korean IHHNV were highly similar to those of members of the infectious IHHNV group, and the most closely related strains were IHHNVs described from Ecuador and Hawaii. Additionally, phylogenetic analysis showed that the Korean IHHNV was clustered with lineage III in the infectious IHHNV group and was most similar to IHHNV isolates from Ecuador, China and Taiwan.
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Affiliation(s)
- J H Kim
- Laboratory of Aquatic Animal Medicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-742, Republic of Korea
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Han SY, Kang BK, Kang BJ, Shin SP, Soen BH, Kim JM, Kim JH, Choresca CH, Han JE, Jun JW, Park SC. Prevalence and different characteristics of two serotypes of Streptococcus parauberis isolated from the farmed olive flounder, Paralichthys olivaceus (Temminck and Schlegel), in Korea. J Fish Dis 2011; 34:731-739. [PMID: 21916898 DOI: 10.1111/j.1365-2761.2011.01289.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The prevalence of two serotypes of Streptococcus parauberis isolated from the olive flounder, Paralichthys olivaceus, was evaluated in a total of 29 isolates between 2003 and 2010 in Korea. Streptococcus parauberis isolates were divided into two serologically distinct types (serotype 1 and serotype 2), except for one strain (S1091), using an agglutination assay with rabbit antiserum, and serotype 1 was identified as the dominant type (24 of 29 isolates) in this study. To identify the characteristics of the two serotypes of S. parauberis, we conducted a biochemical test using the API 20 Strep kit, a transmission electron microscopy (TEM) assay, sequence analysis of 16S-23S rRNA intergenic spacer region (ISR) and a pathogenicity test. In TEM, both serotypes possessed polysaccharide capsule layers around the cell surface when bacterial cells were treated with a homologous serotype of rabbit antiserum. However, we were unable to discriminate serotype-specific biochemical characteristics and genetic characteristics of 16S-23S rRNA ISR between the two serotypes. In the pathogenicity test, the serotype 1 strains induced significantly higher mortality than the serotype 2 strains in olive flounder when experimentally inoculated via the intraperitoneal route.
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Affiliation(s)
- S Y Han
- Research Unit, Green Cross Veterinary Product, Yongin, Korea
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