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Phan HT, Tran HX, Ho TT, Pham VT, Trinh VT, Nguyen TT, Pham NB, Chu HH, Conrad U. Plant crude extracts containing oligomeric hemagglutinins protect chickens against highly Pathogenic Avian Influenza Virus after one dose of immunization. Vet Res Commun 2023; 47:191-205. [PMID: 35633471 PMCID: PMC9145123 DOI: 10.1007/s11259-022-09942-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Received: 12/29/2021] [Accepted: 05/18/2022] [Indexed: 01/27/2023]
Abstract
Highly pathogenic avian influenza viruses (HPAIV) have been responsible for causing several severe outbreaks across the world. To protect poultry farms and to prevent the possible spread of new influenza pandemics, vaccines that are both efficacious and low-cost are in high demand. We produced stable, large hemagglutinin H5 oligomers in planta by the specific interaction between S•Tag and S•Protein. H5 oligomers combined via S•Tag::S•Protein interaction in plant crude extracts induced strong humoral immune responses, strong neutralizing antibody responses, and resistance in chickens after challenge with a wild type HPAIV H5 virus strain. In all three parameters, plant crude extracts with H5 oligomers induced better responses than crude extracts containing trimers. The neutralizing antibodies induced by by two-dose and one dose immunization with an adjuvanted crude extract containing H5 oligomer protected vaccinated chickens from two lethal H5N1 virus strains with the efficiency of 92% and 100%, respectively. Following housing vaccinated chickens together with ten non-immunized chickens, only one of these chickens had detectable levels of the H5N1 virus. To facilitate the easy storage of a candidate vaccine, the H5 oligomer crude extracts were mixed with adjuvants and stored for 3.5 and 5.5 months at 4 °C, and chickens were immunized with these crude extracts. All these vaccinated chickens survived after a lethal H5N1 virus challenge. H5 oligomer crude extracts are comparable to commercial vaccines as they also induce strong virus-neutralizing immune responses following the administration of a single dose. The cost-effective production of plant crude extract vaccine candidates and the high stability after long-term storage will enable and encourage the further exploration of this technology for veterinary vaccine development.
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Affiliation(s)
- Hoang Trong Phan
- grid.418934.30000 0001 0943 9907Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Hanh Xuan Tran
- JSC Central Veterinary NAVETCO, 29A Nguyen Dinh Chieu, 1 District, Ho Chi Minh, Vietnam
| | - Thuong Thi Ho
- grid.267849.60000 0001 2105 6888Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam ,grid.267849.60000 0001 2105 6888Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Van Thi Pham
- grid.267849.60000 0001 2105 6888Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam ,grid.267849.60000 0001 2105 6888Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Vy Thai Trinh
- grid.267849.60000 0001 2105 6888Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam ,grid.267849.60000 0001 2105 6888Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Tra Thi Nguyen
- grid.267849.60000 0001 2105 6888Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam ,grid.267849.60000 0001 2105 6888Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Ngoc Bich Pham
- grid.267849.60000 0001 2105 6888Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam ,grid.267849.60000 0001 2105 6888Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Ha Hoang Chu
- grid.267849.60000 0001 2105 6888Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam ,grid.267849.60000 0001 2105 6888Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Udo Conrad
- grid.418934.30000 0001 0943 9907Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
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Ho TT, Trinh VT, Tran HX, Le PTT, Nguyen TT, Hoang HTT, Pham MD, Conrad U, Pham NB, Chu HH. The immunogenicity of plant-based COE-GCN4pII protein in pigs against the highly virulent porcine epidemic diarrhea virus strain from genotype 2. Front Vet Sci 2022; 9:940395. [PMID: 35967993 PMCID: PMC9366249 DOI: 10.3389/fvets.2022.940395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/04/2022] [Indexed: 11/15/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) is a serious infectious causative agent in swine, especially in neonatal piglets. PEDV genotype 2 (G2) strains, particularly G2a, were the primary causes of porcine epidemic diarrhea (PED) outbreaks in Vietnam. Here, we produced a plant-based CO-26K-equivalent epitope (COE) variant from a Vietnamese highly virulent PEDV strain belonging to genotype 2a (COE/G2a) and evaluated the protective efficacy of COE/G2a-GCN4pII protein (COE/G2a-pII) in piglets against the highly virulent PEDV G2a strain following passive immunity. The 5-day-old piglets had high levels of PEDV-specific IgG antibodies, COE-IgA specific antibodies, neutralizing antibodies, and IFN-γ responses. After virulent challenge experiments, all of these piglets survived and had normal clinical symptoms, no watery diarrhea in feces, and an increase in their body weight, while all of the negative control piglets died. These results suggest that the COE/G2a-pII protein produced in plants can be developed as a promising vaccine candidate to protect piglets against PEDV G2a infection in Vietnam.
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Affiliation(s)
- Thuong Thi Ho
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Vy Thai Trinh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | | | - Tra Thi Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hang Thu Thi Hoang
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Minh Dinh Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Udo Conrad
- Department Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Ngoc Bich Pham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Ngoc Bich Pham
| | - Ha Hoang Chu
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- *Correspondence: Ha Hoang Chu
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Ho TT, Pham VT, Nguyen TT, Trinh VT, Vi T, Lin HH, Nguyen PMT, Bui HT, Pham NB, Le TBT, Phan CV, Chang HC, Hsiao WWW, Chu HH, Pham MD. Effects of Size and Surface Properties of Nanodiamonds on the Immunogenicity of Plant-Based H5 Protein of A/H5N1 Virus in Mice. Nanomaterials (Basel) 2021; 11:nano11061597. [PMID: 34204514 PMCID: PMC8234943 DOI: 10.3390/nano11061597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 12/18/2022]
Abstract
Nanodiamond (ND) has recently emerged as a potential nanomaterial for nanovaccine development. Here, a plant-based haemagglutinin protein (H5.c2) of A/H5N1 virus was conjugated with detonation NDs (DND) of 3.7 nm in diameter (ND4), and high-pressure and high-temperature (HPHT) oxidative NDs of ~40-70 nm (ND40) and ~100-250 nm (ND100) in diameter. Our results revealed that the surface charge, but not the size of NDs, is crucial to the protein conjugation, as well as the in vitro and in vivo behaviors of H5.c2:ND conjugates. Positively charged ND4 does not effectively form stable conjugates with H5.c2, and has no impact on the immunogenicity of the protein both in vitro and in vivo. In contrast, the negatively oxidized NDs (ND40 and ND100) are excellent protein antigen carriers. When compared to free H5.c2, H5.c2:ND40, and H5.c2:ND100 conjugates are highly immunogenic with hemagglutination titers that are both 16 times higher than that of the free H5.c2 protein. Notably, H5.c2:ND40 and H5.c2:ND100 conjugates induce over 3-folds stronger production of both H5.c2-specific-IgG and neutralizing antibodies against A/H5N1 than free H5.c2 in mice. These findings support the innovative strategy of using negatively oxidized ND particles as novel antigen carriers for vaccine development, while also highlighting the importance of particle characterization before use.
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Affiliation(s)
- Thuong Thi Ho
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Van Thi Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Tra Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Vy Thai Trinh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Tram Vi
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Medical Biotechnology—Plant Biotechnology—Pharmacology, University of Science and Technology of Hanoi (USTH), 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Hsin-Hung Lin
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan; (H.-H.L.); (H.-C.C.)
| | - Phuong Minh Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
| | - Huyen Thi Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Thao Bich Thi Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
| | - Chi Van Phan
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
| | - Huan-Cheng Chang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan; (H.-H.L.); (H.-C.C.)
| | - Wesley Wei-Wen Hsiao
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan;
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Correspondence: (H.H.C.); (M.D.P.)
| | - Minh Dinh Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam; (T.T.H.); (V.T.P.); (T.T.N.); (V.T.T.); (T.V.); (P.M.T.N.); (H.T.B.); (N.B.P.); (T.B.T.L.); (C.V.P.)
- Faculty of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
- Correspondence: (H.H.C.); (M.D.P.)
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Trinh TT, Hoang TS, Tran DA, Trinh VT, Göhler A, Nguyen TT, Hoang SN, Krumkamp R, Nguyen LTN, May J, Doan PM, Do CD, Que TA, Steinmetz I. A simple laboratory algorithm for diagnosis of melioidosis in resource-constrained areas: a study from north-central Vietnam. Clin Microbiol Infect 2017; 24:84.e1-84.e4. [PMID: 28780059 DOI: 10.1016/j.cmi.2017.07.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 04/12/2017] [Revised: 06/26/2017] [Accepted: 07/26/2017] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Melioidosis may be endemic in many tropical developing countries, but diagnosis of the disease is currently unreliable in resource-limited areas. We aimed to validate a simple and cheap laboratory algorithm for the identification of Burkholderia pseudomallei from clinical specimens in parts of Vietnam where the disease has not previously been reported. METHODS In June 2015, we conducted training courses at five general hospitals in north-central provinces in order to raise awareness of the disease and to introduce a simple and cheap laboratory identification algorithm for B. pseudomallei including the three-antibiotic disc test. RESULTS Until the end of the year (7 months later), 94 suspected B. pseudomallei strains resistant to gentamicin and colistin but sensitive to amoxicillin/clavulanic acid were detected in clinical specimens from 70 patients. All strains were further confirmed as B. pseudomallei by using a specific TTSS1 real-time PCR assay and recA sequencing analysis. Among positive blood cultures, positive rates with B. pseudomallei ranged from 3.4% (5/147) to 10.2% (32/312) in the various clinics. A total of 82.8% (58/70) patients were bacteraemic, with a mortality of 50% (18/36) among patients with known outcome. No death occurred in nonbacteraemic patients. CONCLUSIONS Our results demonstrate that the introduction of a simple and easy-to-perform laboratory algorithm for the identification of B. pseudomallei from clinical samples, together with clinical awareness raising, can lead to the diagnosis of a significant number of melioidosis cases in resource-limited clinical laboratories which previously did not identify the pathogen.
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Affiliation(s)
- T T Trinh
- Institute of Microbiology and Biotechnology, Vietnam National University, Hanoi, Viet Nam.
| | - T S Hoang
- Institute of Microbiology and Biotechnology, Vietnam National University, Hanoi, Viet Nam
| | - D A Tran
- General Hospital of Nghe An Province, Viet Nam
| | - V T Trinh
- General Hospital of Ha Tinh Province, Viet Nam
| | - A Göhler
- Friedrich Loeffler Institute for Medical Microbiology, Greifswald, Germany
| | - T T Nguyen
- General Hospital of Quang Binh Province, Viet Nam
| | - S N Hoang
- General Hospital of Quang Tri Province, Viet Nam
| | - R Krumkamp
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research (DZIF), Hamburg-Borstel-Lübeck, Germany
| | | | - J May
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research (DZIF), Hamburg-Borstel-Lübeck, Germany
| | - P M Doan
- Bach Mai Hospital, Hanoi, Viet Nam
| | - C D Do
- Bach Mai Hospital, Hanoi, Viet Nam
| | - T A Que
- General Hospital of Nghe An Province, Viet Nam
| | - I Steinmetz
- Friedrich Loeffler Institute for Medical Microbiology, Greifswald, Germany; Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
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Abstract
Adenovirus serotype 5 remains one of the most promising vectors for delivering genetic material to cancer cells for imaging or therapy, but optimization of these agents to selectively promote tumor cell infection is needed to further their clinical development. Peptide sequences that bind to specific cell surface receptors have been inserted into adenoviral capsid proteins to improve tumor targeting, often in the background of mutations designed to ablate normal ligand:receptor interactions and thereby reduce off target effects and toxicities in non-target tissues. Different tumor types also express highly variable complements of cell surface receptors, so a customized targeting strategy using a particular peptide in the context of specific adenoviral mutations may be needed to achieve optimal efficacy. To further investigate peptide targeting strategies in adenoviral vectors, we used a set of peptide motifs originally isolated using phage display technology that evince tumor specificity in vivo. To demonstrate their abilities as targeting motifs, we genetically incorporated these peptides into a surface loop of the fiber capsid protein to construct targeted adenovirus vectors. We then systematically evaluated the ability of these peptide targeted vectors to infect several tumor cell types, both in vitro and in vivo, in a variety of mutational backgrounds designed to reduce CAR and/or HSG-mediated binding. Results from this study support previous observations that peptide insertions in the HI loop of the fiber knob domain are generally ineffective when used in combination with HSG detargeting mutations. The evidence also suggests that this strategy can attenuate other fiber knob interactions, such as CAR-mediated binding, and reduce overall viral infectivity. The insertion of peptides into fiber proved more effective for targeting tumor cell types expressing low levels of CAR receptor, as this strategy can partially compensate for the very low infectivity of wild-type adenovirus in those cells. Nevertheless, the incorporation of relatively low affinity peptide ligands into the fiber knob, while effective in vitro, has only minimal targeting efficacy in vivo and highlights the importance of high affinity ligand:receptor interactions to achieve tumor targeting.
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Affiliation(s)
- E N Ballard
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390-8573, USA
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