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Ly LK, Ho TM, Bui TP, Nguyen LT, Phan Q, Le NT, Khuat LTM, Le LH, Chu HH, Pham NB, Do PT. CRISPR/Cas9 targeted mutations of OsDSG1 gene enhanced salt tolerance in rice. Funct Integr Genomics 2024; 24:70. [PMID: 38565780 DOI: 10.1007/s10142-024-01347-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/19/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Salinization is one of the leading causes of arable land shrinkage and rice yield decline, recently. Therefore, developing and utilizing salt-tolerant rice varieties have been seen as a crucial and urgent strategy to reduce the effects of saline intrusion and protect food security worldwide. In the current study, the CRISPR/Cas9 system was utilized to induce targeted mutations in the coding sequence of the OsDSG1, a gene involved in the ubiquitination pathway and the regulation of biochemical reactions in rice. The CRISPR/Cas9-induced mutations of the OsDSG1 were generated in a local rice cultivar and the mutant inheritance was validated at different generations. The OsDSG1 mutant lines showed an enhancement in salt tolerance compared to wild type plants at both germination and seedling stages indicated by increases in plant height, root length, and total fresh weight as well as the total chlorophyll and relative water contents under the salt stress condition. In addition, lower proline and MDA contents were observed in mutant rice as compared to wild type plants in the presence of salt stress. Importantly, no effect on seed germination and plant growth parameters was recorded in the CRISRP/Cas9-induced mutant rice under the normal condition. This study again indicates the involvement of the OsDSG1 gene in the salt resistant mechanism in rice and provides a potential strategy to enhance the tolerance of local rice varieties to the salt stress.
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Affiliation(s)
- Linh Khanh Ly
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Tuong Manh Ho
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Thao Phuong Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Linh Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Quyen Phan
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Ngoc Thu Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | | | | | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 Building, 18 Hoang Quoc Viet, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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Le TTM, Pham HT, Trinh HTT, Tran HT, Chu HH. Isolation and Characterization of Novel Huperzine-Producing Endophytic Fungi from Lycopodiaceae Species. J Fungi (Basel) 2023; 9:1134. [PMID: 38132735 PMCID: PMC10744052 DOI: 10.3390/jof9121134] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
Huperzine A (HupA) is an important drug for treating Alzheimer's disease (AD) and is primarily extracted from the Huperzia serrata (Lycopodiaceae). Failures in the chemical synthesis of Hup and in vitro culture have put H. serrata in danger of extinction, and there is a need for an extensive investigation of Hup from alternative perspectives. The aim of this study is to identify endophytic fungi that produce high Hup or simultaneously produce many types of Hup and have high genetic stability derived from other Lycopodiaceae species as a source of materials for natural Hup production. In this work, Hup-producing endophytic fungi were isolated from three species: Lycopodium clavatum, Phlegmariurus squarrosus, and P. phlegmaria. Of these, L. clavatum and P. squarrosus were confirmed as novel sources of Hup-producing fungi. Based on morphological characteristics and nuclear ribosomal DNA ITS sequences, four endophytic fungi Colletotrichum siamense THG1-17, Epicoccum sorghinum THG01-18, Phoma sp. TKH3-2, and Phyllosticta sp. THG2-27 were firstly isolated from these Lycopodiaceae plants, which were capable of simultaneously producing both HupA and HupB, as evidenced by high-performance liquid chromatography analysis. The four strains showed stability in Hup yield over 50 generations of culture with an in vitro storage period of 3 months. These isolated fungi will provide a new source of materials for further research to develop drugs containing HupA as well as HupB for AD treatment in the future.
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Affiliation(s)
- Thanh Thi Minh Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi 100000, Vietnam
| | - Ha Thanh Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Ha Thi Thu Trinh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Hoa Thi Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi 100000, Vietnam
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Bui TP, Le H, Ta DT, Nguyen CX, Le NT, Tran TT, Van Nguyen P, Stacey G, Stacey MG, Pham NB, Chu HH, Do PT. Enhancing powdery mildew resistance in soybean by targeted mutation of MLO genes using the CRISPR/Cas9 system. BMC Plant Biol 2023; 23:533. [PMID: 37919649 PMCID: PMC10623788 DOI: 10.1186/s12870-023-04549-5] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Powdery mildew is a major disease that causes great losses in soybean yield and seed quality. Disease-resistant varieties, which are generated by reducing the impact of susceptibility genes through mutation in host plants, would be an effective approach to protect crops from this disease. The Mildew Locus O (MLO) genes are well-known susceptibility genes for powdery mildew in plant. In this study, we utilized the CRISPR/Cas9 system to induce targeted mutations in the soybean GmMLO genes to improve powdery mildew resistance. RESULTS A dual-sgRNA CRISPR/Cas9 construct was designed and successfully transferred into the Vietnamese soybean cultivar DT26 through Agrobacterium tumefaciens-mediated transformation. Various mutant forms of the GmMLO genes including biallelic, chimeric and homozygous were found at the T0 generation. The inheritance and segregation of CRISPR/Cas9-induced mutations were confirmed and validated at the T1 and T2 generations. Out of six GmMLO genes in the soybean genome, we obtained the Gmmlo02/Gmmlo19/Gmmlo23 triple and Gmmlo02/Gmmlo19/Gmmlo20/Gmmlo23 quadruple knockout mutants at the T2 generation. When challenged with Erysiphe diffusa, a fungus that causes soybean powdery mildew, all mutant plants showed enhanced resistance to the pathogen, especially the quadruple mutant. The powdery mildew severity in the mutant soybeans was reduced by up to 36.4% compared to wild-type plants. In addition, no pleiotropic effect on soybean growth and development under net-house conditions was observed in the CRISPR/Cas9 mutants. CONCLUSIONS Our results indicate the involvement of GmMLO02, GmMLO19, GmMLO20 and GmMLO23 genes in powdery mildew susceptibility in soybean. Further research should be conducted to investigate the roles of individual tested genes and the involvement of other GmMLO genes in this disease infection mechanism. Importantly, utilizing the CRISPR/Cas9 system successfully created the Gmmlo transgene-free homozygous mutant lines with enhanced resistance to powdery mildew, which could be potential materials for soybean breeding programs.
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Affiliation(s)
- Thao Phuong Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Huy Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Present address: Department of Biology, Washington University in St. Louis, St. Louis, USA
| | - Dong Thi Ta
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Cuong Xuan Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Ngoc Thu Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Truong Thi Tran
- Legumes Research and Development Center, Vietnam Academy of Agriculture Science, Hanoi, Vietnam
| | - Phuong Van Nguyen
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Gary Stacey
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Minviluz G Stacey
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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Le DTT, Vu CM, Ly TTB, Nguyen NT, Nguyen PTM, Chu HH. Effect of Honokiol on culture time and survival of Alzheimer's disease iPSC-derived neurons. Bioimpacts 2023; 14:27652. [PMID: 38327632 PMCID: PMC10844589 DOI: 10.34172/bi.2023.27652] [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] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 05/19/2023] [Accepted: 07/22/2023] [Indexed: 02/09/2024]
Abstract
Introduction Patient-derived induced pluripotent stem cells (iPSCs) have been widely used as disease models to test new therapeutic strategies. Moreover, the regenerative potential of stem cells can be improved with the use of biologically active compounds. Our study was designed to explore the effect of honokiol, a small polyphenol molecule extracted from Magnolia officinalis, on the survival and culture time of iPSC-derived neurons from a sporadic Alzheimer's disease (AD) patient. This study aimed to generate iPSCs from peripheral blood mononuclear cells (PBMCs) of an AD patient using episomal plasmids with a nucleofector system and differentiate them into neurons. These iPSC-derived neurons were used to investigate the effect of honokiol extracted from M. officinalis on their survival and long-term cultures. Methods IPSCs were generated from PBMCs of an AD patient by introducing Oct-3/4, Sox2, Klf4, L-Myc, and Lin28 using NucleofectorTM Technology. Differentiation of neurons derived from iPSCs was carried out using inducers and recognized by biomarkers. The viability of iPSC-derived neurons with the addition of honokiol extracted from the bark of M. officinalis was determined by the MTT analytical kit. Results IPSCs were generated by reprogramming AD patient-derived PBMCs and subsequently converted into neurons. The survival and growth of iPSC-derived neurons were significantly enhanced by adding honokiol in the experiment conditions. Conclusion AD iPSC-derived neurons had a high viability rate when cultured in the presence of honokiol. These results have shown that AD iPSC-derived neurons can be an excellent model for screening neurotrophic agents and improving the conditions for long-term cultures of human iPSC-derived neurons. Honokiol proves to be a potential candidate for cellular therapeutics against neurodegenerative disorders.
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Affiliation(s)
- Duong Thi Thuy Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
| | - Cuong Manh Vu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
| | - Thuy Thi Bich Ly
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
| | - Nam Trung Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
| | - Phuong Thi Mai Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam
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Nguyen NH, Bui TP, Le NT, Nguyen CX, Le MTT, Dao NT, Phan Q, Van Le T, To HMT, Pham NB, Chu HH, Do PT. Disrupting Sc-uORFs of a transcription factor bZIP1 using CRISPR/Cas9 enhances sugar and amino acid contents in tomato (Solanum lycopersicum). Planta 2023; 257:57. [PMID: 36795295 DOI: 10.1007/s00425-023-04089-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Induced mutations in the SC-uORF of the tomato transcription factor gene SlbZIP1 by the CRISPR/Cas9 system led to the high accumulation of sugar and amino acid contents in tomato fruits. Tomato (Solanum lycopersicum) is one of the most popular and consumed vegetable crops in the world. Among important traits for tomato improvement such as yield, biotic and abiotic resistances, appearance, post-harvest shelf life and fruit quality, the last one seems to face more challenges because of its genetic and biochemical complexities. In this study, a dual-gRNAs CRISPR/Cas9 system was developed to induce targeted mutations in uORF regions of the SlbZIP1, a gene involved in the sucrose-induced repression of translation (SIRT) mechanism. Different induced mutations in the SlbZIP1-uORF region were identified at the T0 generation, stably transferred to the offspring, and no mutation was found at potential off-target sites. The induced mutations in the SlbZIP1-uORF region affected the transcription of SlbZIP1 and related genes in sugar and amino acid biosynthesis. Fruit component analysis showed significant increases in soluble solid, sugar and total amino acid contents in all SlbZIP1-uORF mutant lines. The accumulation of sour-tasting amino acids, including aspartic and glutamic acids, raised from 77 to 144%, while the accumulation of sweet-tasting amino acids such as alanine, glycine, proline, serine, and threonine increased from 14 to 107% in the mutant plants. Importantly, the potential SlbZIP1-uORF mutant lines with desirable fruit traits and no impaired effect on plant phenotype, growth and development were identified under the growth chamber condition. Our result indicates the potential utility of the CRISPR/Cas9 system for fruit quality improvement in tomato and other important crops.
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Affiliation(s)
- Nhung Hong Nguyen
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Thao Phuong Bui
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Thu Le
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Cuong Xuan Nguyen
- Division of Plant Sciences, University of Missouri, Columbia, MO, USA
| | - My Tra Thi Le
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nhan Trong Dao
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Quyen Phan
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Trong Van Le
- National Center for Food Analysis and Assessment, Food Industries Research Institute, Hanoi, Vietnam
| | - Huong Mai Thi To
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Pham
- Laboratory of Applied DNA Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Hoang Chu
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
| | - Phat Tien Do
- Laboratory of Plant Cell of Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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Nguyen DH, Chu NH, Bettarel Y, Auguet JC, Bouvier T, Chu HH, Bui VN. Metagenomic data of bacterial communities associated with Acropora species from Phu Quoc Islands, Vietnam. Data Brief 2023; 47:108977. [PMID: 36860407 PMCID: PMC9969277 DOI: 10.1016/j.dib.2023.108977] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Acropora is one of the most common coral genera found in Phu Quoc Islands, Vietnam. However, the presence of marine snails, such as the coralllivorous gastropod Drupella rugosa, was a potential threat to the survival of many scleractinian species, leading to changes in the health status and bacterial diversity of coral reefs in Phu Quoc Islands. Here, we describe the composition of bacterial communities associated with two species of Acropora (Acropora formosa and Acropora millepora) using the Illumina sequencing technology. This dataset includes 5 coral samples of each status (grazed or healthy), which were collected in Phu Quoc Islands (9°55'20.6″N 104°01'16.4″E) in May 2020. A total of 19 phyla, 34 classes, 98 orders, 216 families and 364 bacterial genera were detected from 10 coral samples. Overall, Proteobacteria and Firmicutes were the two most common bacterial phyla in all samples. Significant differences in the relative abundances of the genera Fusibacter, Halarcobacter, Malaciobacter, and Thalassotalea between grazed and healthy status were observed. However, there was no differences in alpha diversity indices between the two status. Furthermore, the dataset analysis also indicated that Vibrio and Fusibacter were core genera in the grazed samples, whereas Pseudomonas was the core genus in the healthy samples.
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Affiliation(s)
- Duong Huy Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Nhat Huy Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam,Graduate University of Science and Technology (GUST), VAST, Hanoi, Vietnam
| | - Yvan Bettarel
- UMR MARBEC IRD-CNRS-IFREMER-Université Montpellier, Montpellier, France
| | | | - Thierry Bouvier
- UMR MARBEC IRD-CNRS-IFREMER-Université Montpellier, Montpellier, France
| | - Ha Hoang Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam,Graduate University of Science and Technology (GUST), VAST, Hanoi, Vietnam
| | - Van Ngoc Bui
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam,Graduate University of Science and Technology (GUST), VAST, Hanoi, Vietnam,Corresponding author.
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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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To HTM, Pham DT, Le Thi VA, Nguyen TT, Tran TA, Ta AS, Chu HH, Do PT. The Germin-like protein OsGER4 is involved in promoting crown root development under exogenous jasmonic acid treatment in rice. Plant J 2022; 112:860-874. [PMID: 36134434 DOI: 10.1111/tpj.15987] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
In rice (Oryza sativa L.), crown roots (CRs) have many important roles in processes such as root system expansion, water and mineral uptake, and adaptation to environmental stresses. Phytohormones such as auxin, cytokinin, and ethylene are known to control CR initiation and development in rice. However, the role of jasmonic acid (JA) in CR development remained elusive. Here, we report that JA promotes CR development by regulating OsGER4, a rice Germin-like protein. Root phenotyping analysis revealed that exogenous JA treatment induced an increase in CR number in a concentration-dependent manner. A subsequent genome-wide association study and gene expression analyses pinpointed a strong association between the Germin-like protein OsGER4 and the increase in CR number under exogenous JA treatment. The ProGER4::GUS reporter line showed that OsGER4 is a hormone-responsive gene involved in various stress responses, mainly confined to epidermal and vascular tissues during CR primordia development and to vascular bundles of mature crown and lateral roots. Notable changes in OsGER4 expression patterns caused by the polar auxin transport inhibitor NPA support its connection to auxin signaling. Phenotyping experiments with OsGER4 knockout mutants confirmed that this gene is required for CR development under exogenous JA treatment. Overall, our results provide important insights into JA-mediated regulation of CR development in rice.
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Affiliation(s)
- Huong Thi Mai To
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Dan The Pham
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Van Anh Le Thi
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Trang Thi Nguyen
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Tuan Anh Tran
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Anh Son Ta
- School of Applied Mathematics and Informatics, University of Science and Technology of Hanoi, 1 Dai Co Viet, Hai Ba Trung, Hanoi, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
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9
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Trinh DD, Le NT, Bui TP, Le TNT, Nguyen CX, Chu HH, Do PT. A sequential transformation method for validating soybean genome editing by CRISPR/Cas9 system. Saudi J Biol Sci 2022; 29:103420. [PMID: 36060110 PMCID: PMC9434168 DOI: 10.1016/j.sjbs.2022.103420] [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: 05/03/2022] [Revised: 07/13/2022] [Accepted: 08/12/2022] [Indexed: 12/05/2022] Open
Abstract
This study was performed to evaluate the sequential transformation for soybean genome editing using the CRISPR/Cas9 system as well as to show a strategy for examining the activity of CRISPR/Cas9 constructs, especially the designed guide RNAs (gRNAs). The gRNAs for targeted mutations of an exogenous gene and multiple endogenous genes were constructed and transferred into a stably-overexpressed-Cas9 soybean line using Agrobacterium rhizogenes-mediated hairy root induction system. The targeted mutations were identified and characterized by the poly-acrylamide gel electrophoresis (PAGE) heteroduplex method and by sequencing. Induced mutations of the exogenous gene (gus) were observed in 57% of tested transgenic hairy roots, while 100% of the transgenic root lines showed targeted mutations of the endogenous (SACPD-C) gene. Multiple gRNAs targeting two endogenous genes (SACPD-C and SMT) induced mutation rates of 75% and 67%, respectively. Various indels including small and large deletions as well as insertions were found in target sites of the tested genes. This sequential transformation method could present the targeting efficacy of different gRNAs of each tested gene. Additionally, in this study differences in gRNA ratings were found between bioinformatics predictions and actual experimental results. This is the first successful application of the sequential transformation method for genome editing in soybean using the hairy root system. This method could be potentially useful for validating CRISPR/Cas9 constructs, evaluating gRNA targeting efficiencies, and could be applied for other research directions.
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Affiliation(s)
- Duy Dinh Trinh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Ngoc Thu Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Thao Phuong Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Thao Nhu Thi Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Cuong Xuan Nguyen
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
- Corresponding author at: Institute of Biotechnology, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
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10
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Thi Tran H, Thu Nguyen G, Thi Nguyen HH, Thi Tran H, Hong Tran Q, Ho Tran Q, Thi Ninh N, Tien Do P, Hoang Chu H, Bich Pham N. Isolation and Cytotoxic Potency of Endophytic Fungi Associated with Dysosma difformis, a Study for the Novel Resources of Podophyllotoxin. Mycobiology 2022; 50:389-398. [PMID: 36404896 PMCID: PMC9645267 DOI: 10.1080/12298093.2022.2126166] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 06/27/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Endophytic fungi are promising sources for the production of podophyllotoxin-an important anticancer compound, replacing depleted medical plants. In this study, the endophytes associated with Dysosma difformis-an ethnomedicinal plant species were isolated to explore novel sources of podophyllotoxin. Fifty-three endophytic fungi were isolated and identified by morphological observation and ITS-based rDNA sequencing, assigning them to 27 genera in 3 divisions. Fusarium was found the most prevalent genus with a colonization frequency of 11.11%, followed by Trametes (9.26%) and Penicillium (7.41%). Phylogenetic trees were constructed for the endophytic fungi community in two collection sites, Ha Giang and Lai Chau, revealing the adaptation of the species to the specific tissues and habitats. Cytotoxic activity of endophytic fungal extracts was investigated on cancer cell lines such as SK-LU-1, HL-60, and HepG2, demonstrating strong anti-cancer activity of six isolates belonging to Penicillium, Trametes, Purpureocillium, Aspergillus, and Ganoderma with IC50 value of lower than 10 µg/mL. The presence of podophyllotoxin was indicated in Penicillium, Trametes, Aspergillus and for the first time in Purpureocillium and Ganoderma via high-performance liquid chromatography, which implied them as a potential source of this anti-cancer compound.
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Affiliation(s)
- Hoa Thi Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Viet Nam
| | - Giang Thu Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
| | - Hong Ha Thi Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
| | - Huyen Thi Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
| | - Quang Hong Tran
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Viet Nam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
| | - Quang Ho Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Viet Nam
| | - Ngoc Thi Ninh
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Viet Nam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Viet Nam
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Viet Nam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Viet Nam
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11
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Chu HTT, Vu TN, Dinh TTT, Do PT, Chu HH, Tien TQ, Tong QC, Nguyen MH, Ha QT, Setzer WN. Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil. Molecules 2022; 27:molecules27175599. [PMID: 36080366 PMCID: PMC9457840 DOI: 10.3390/molecules27175599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
This study was performed to investigate the effects of different supplemental light spectra and doses (duration and illuminance) on the essential oil of basil (Ocimum basilicum L.) cultivated in the net-house in Vietnam during four months. Ten samples of basil aerial parts were hydrodistilled to obtain essential oils which had the average yields from 0.88 to 1.30% (v/w, dry). The oils analyzed using GC-FID and GC-MS showed that the main component was methyl chavicol (87.4−90.6%) with the highest values found in the oils of basil under lighting conditions of 6 h/day and 150−200 µmol·m−2·s−1. Additional lighting conditions caused the significant differences (p < 0.001) in basil biomass and oil production with the highest values found in the oils of basil under two conditions of (1) 71% Red: 20% Blue: 9.0% UVA in at 120 μmol·m−2·s−1 in 6 h/day and (2) 43.5% Red: 43.5% Blue: 8.0% Green: 5.0% Far-Red at 100 μmol·m−2·s−1 in 6 h/day. The oils of basil in some formulas showed weak inhibitory effects on only the Bacillus subtilis strain. Different light spectra affect the biomass and essential oil production of basil, as well as the concentrations of the major components in the oil.
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Affiliation(s)
- Ha Thi Thu Chu
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Ha Noi 10072, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Correspondence: (H.T.T.C.); (T.N.V.)
| | - Thi Nghiem Vu
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Correspondence: (H.T.T.C.); (T.N.V.)
| | - Thuy Thi Thu Dinh
- Institute of Natural Product Chemistry, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Phat Tien Do
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Institute of Biotechnology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Ha Hoang Chu
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Institute of Biotechnology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Tran Quoc Tien
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Quang Cong Tong
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
- Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Manh Hieu Nguyen
- Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Ha Noi 10072, Vietnam
| | - Quyen Thi Ha
- Faculty of Agricultural Technology, VNU University of Engineering and Technology, Vietnam National University Hanoi, 144 Xuan Thuy, Ha Noi 10053, Vietnam
| | - William N. Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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12
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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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13
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Nguyen DV, Hoang TTH, Le NT, Tran HT, Nguyen CX, Moon YH, Chu HH, Do PT. An Efficient Hairy Root System for Validation of Plant Transformation Vector and CRISPR/Cas Construct Activities in Cucumber ( Cucumis sativus L.). Front Plant Sci 2022; 12:770062. [PMID: 35222448 PMCID: PMC8874011 DOI: 10.3389/fpls.2021.770062] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Hairy root induction system has been applied in various plant species as an effective method to study gene expression and function due to its fast-growing and high genetic stability. Recently, these systems have shown to be an effective tool to evaluate activities of CRISPR/Cas9 systems for genome editing. In this study, Rhizobium rhizogenes mediated hairy root induction was optimized to provide an effective tool for validation of plant transformation vector, CRISPR/Cas9 construct activities as well as selection of targeted gRNAs for gene editing in cucumber (Cucumis sativus L.). Under the optimized conditions including OD650 at 0.4 for infection and 5 days of co-cultivation, the highest hairy root induction frequency reached 100% for the cucumber variety Choka F1. This procedure was successfully utilized to overexpress a reporter gene (gus) and induce mutations in two Lotus japonicus ROOTHAIRLESS1 homolog genes CsbHLH66 and CsbHLH82 using CRISPR/Cas9 system. For induced mutation, about 78% of transgenic hairy roots exhibited mutant phenotypes including sparse root hair and root hair-less. The targeted mutations were obtained in individual CsbHLH66, CsbHLH82, or both CsbHLH66 and CsbHLH82 genes by heteroduplex analysis and sequencing. The hairy root transformation system established in this study is sufficient and potential for further research in genome editing of cucumber as well as other cucumis plants.
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Affiliation(s)
- Doai Van Nguyen
- Laboratory of Plant Cell Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
| | - Trang Thi-Huyen Hoang
- Laboratory of Plant Cell Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Thu Le
- Laboratory of Plant Cell Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Huyen Thi Tran
- Laboratory of Plant Cell Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Cuong Xuan Nguyen
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Yong-Hwan Moon
- Department of Integrated Biological Science, Pusan National University, Busan, South Korea
- Department of Molecular Biology, Pusan National University, Busan, South Korea
| | - Ha Hoang Chu
- Laboratory of Plant Cell Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phat Tien Do
- Laboratory of Plant Cell Biotechnology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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14
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Ly LK, Bui TP, Van Thi Le A, Van Nguyen P, Ong PX, Pham NB, Zhang ZJ, Do PT, Chu HH. Enhancing plant growth and biomass production by overexpression of GA20ox gene under control of a root preferential promoter. Transgenic Res 2022; 31:73-85. [PMID: 34532833 DOI: 10.1007/s11248-021-00282-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/28/2021] [Indexed: 11/27/2022]
Abstract
Overexpression of GA20 oxidase gene has been a recent trend for improving plant growth and biomass. Constitutive expression of GA20ox has successfully improved plant growth and biomass in several plant species. However, the constitutive expression of this gene causes side-effects, such as reduced leaf size and stem diameter, etc. To avoid these effects, we identified and employed different tissue-specific promoters for GA20ox overexpression. In this study, we examined the utility of At1g promoter to drive the expression of GUS (β-glucuronidase) reporter and AtGA20ox genes in tobacco and Melia azedarach. Histochemical GUS assays and quantitative real-time-PCR results in tobacco showed that At1g was a root-preferential promoter whose expression was particularly strong in root tips. The ectopic expression of AtGA20ox gene under the control of At1g promoter showed improved plant growth and biomass of both tobacco and M. azedarach transgenic plants. Stem length as well as stem and root fresh weight increased by up to 1.5-3 folds in transgenic tobacco and 2 folds in transgenic M. azedarach. Both tobacco and M. azedarach transgenic plants showed increases in root xylem width with xylem to phloem ratio over 150-200% as compared to WT plants. Importantly, no significant difference in leaf shape and size was observed between At1g::AtGA20ox transgenic and WT plants. These results demonstrate the great utility of At1g promoter, when driving AtGA20ox gene, for growth and biomass improvements in woody plants and potentially some other plant species.
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Affiliation(s)
- Linh Khanh Ly
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Thao Phuong Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 building, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Anh Van Thi Le
- University of Science and Technology of Hanoi, Hanoi, Vietnam
| | | | - Phong Xuan Ong
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 building, 18 Hoang Quoc Viet, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 building, 18 Hoang Quoc Viet, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, A10 building, 18 Hoang Quoc Viet, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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15
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Vu NTH, Quach TN, Dao XTT, Le HT, Le CP, Nguyen LT, Le LT, Ngo CC, Hoang H, Chu HH, Phi QT. A genomic perspective on the potential of termite-associated Cellulosimicrobium cellulans MP1 as producer of plant biomass-acting enzymes and exopolysaccharides. PeerJ 2021; 9:e11839. [PMID: 34395081 PMCID: PMC8325422 DOI: 10.7717/peerj.11839] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/01/2021] [Indexed: 12/12/2022] Open
Abstract
Background Lignocellulose is a renewable and enormous biomass resource, which can be degraded efficiently by a range of cocktails of carbohydrate-active enzymes secreted by termite gut symbiotic bacteria. There is an urgent need to find enzymes with novel characteristics for improving the conversion processes in the production of lignocellulosic-based products. Although various studies dedicated to the genus Cellulosimicrobium as gut symbiont, genetic potential related to plant biomass-acting enzymes and exopolysaccharides production has been fully untapped to date. Methods The cellulolytic bacterial strain MP1 was isolated from termite guts and identified to the species level by phenotypic, phylogenetic, and genomic analysis. To further explore genes related to cellulose and hemicellulose degradation, the draft genome of strain MP1 was obtained by using whole-genome sequencing, assembly, and annotation through the Illumina platform. Lignocellulose degrading enzymes and levan production in the liquid medium were also examined to shed light on bacterial activities. Results Among 65 isolates obtained, the strain MP1 was the most efficient cellulase producer with cellulase activity of 0.65 ± 0.02 IU/ml. The whole genome analysis depicted that strain MP1 consists of a circular chromosome that contained 4,580,223 bp with an average GC content of 73.9%. The genome comprises 23 contigs including 67 rRNA genes, three tRNA genes, a single tmRNA gene, and 4,046 protein-coding sequences. In support of the phenotypic identification, the 16S rRNA gene sequence, average nucleotide identity, and whole-genome-based taxonomic analysis demonstrated that the strain MP1 belongs to the species Cellulosimicrobium cellulans. A total of 30 genes related to the degradation of cellulases and hemicellulases were identified in the C. cellulans MP1 genome. Of note, the presence of sacC1-levB-sacC2-ls operon responsible for levan and levan-type fructooligosaccharides biosynthesis was detected in strain MP1 genome, but not with closely related C. cellulans strains, proving this strain to be a potential candidate for further studies. Endoglucanases, exoglucanases, and xylanase were achieved by using cheaply available agro-residues such as rice bran and sugar cane bagasse. The maximum levan production by C. cellulans MP1 was 14.8 ± 1.2 g/l after 20 h of cultivation in media containing 200 g/l sucrose. To the best of our knowledge, the present study is the first genome-based analysis of a Cellulosimicrobium species which focuses on lignocellulosic enzymes and levan biosynthesis, illustrating that the C. cellulans MP1 has a great potential to be an efficient platform for basic research and industrial exploitation.
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Affiliation(s)
- Nguyen Thi-Hanh Vu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Tung Ngoc Quach
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Xuan Thi-Thanh Dao
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam.,Vinh University, Vinh, Vietnam
| | - Ha Thanh Le
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Chi Phuong Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam
| | - Lam Tung Nguyen
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Lam Tung Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam
| | | | - Ha Hoang
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Quyet-Tien Phi
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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16
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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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17
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Hoang HT, Le DH, Le TTH, Nguyen TTN, Chu HH, Nguyen NT. Metagenomic 16S rDNA amplicon data of microbial diversity of guts in Vietnamese humans with type 2 diabetes and nondiabetic adults. Data Brief 2020; 34:106690. [PMID: 33426245 PMCID: PMC7776958 DOI: 10.1016/j.dib.2020.106690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 11/03/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 02/01/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is an important public health problem. The knowledge of bacterial communities in the gut of Vietnamese patients with T2DM and non diabetic controls is still insufficient. We report in this article the 16S rDNA amplicon data of the gut microbiomes of Vietnamese patients with T2DM and nondiabetic controls carried out using the Illumina sequencing. This work included 7 patients and 7 controls. A total of 1,627,646 reads were obtained and a total of 13 phyla, 25 classes, 94 genera were revealed. The top three dominant bacterial phyla in all subjects were Firmicutes, Bacteroidetes and Proteobacteria. Significant differences in the relative abundances of the phylum Firmicutes and class Clostridia between patients and controls were observed, suggesting that the reducing of phylum Firmicutes and class Clostridia in the gut may be linked to obesity and T2DM. All sequencing libraries were deposited in the NCBI SRA as BioProject PRJNA668251. The datasets are needed to determine the association between the bacterial composition of the gut and the pathogenesis of T2DM in Vietnamese patients.
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Affiliation(s)
- Hung The Hoang
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Military Academy of Logistics, Long Bien, Hanoi, Vietnam
| | - Duc Hoang Le
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | | | - Thi Tuyet Nhung Nguyen
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Ha Hoang Chu
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Nam Trung Nguyen
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
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18
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Alhazemi AA, Park S, Shin JH, Cho YC, Kim Y, Lee J, Kim PH, Kim JW, Chu HH. Safety and efficacy of transarterial embolisation for treatment of dorsal pancreatic artery haemorrhage. Clin Radiol 2020; 76:314.e9-314.e15. [PMID: 33334554 DOI: 10.1016/j.crad.2020.11.111] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 11/12/2020] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the safety and efficacy of transarterial embolisation (TAE) of dorsal pancreatic artery (DPA) haemorrhage. MATERIALS AND METHODS Nineteen consecutive patients (M:F = 16:3, mean age 59.6 years) who underwent TAE of DPA in three tertiary medical centres between January 2001 to January 2020 were reviewed retrospectively. Angiographic features and the technical and clinical outcomes of TAE were analysed. RESULTS The clinical presentations were a bloody drain from the Jackson-Pratt drainage tube (n=8), melaena (n=7), abdominal pain (n=4), and haematochezia (n=3). Angiographic findings included pseudoaneurysm (n=14), contrast media extravasation (n=4), or abrupt cut-off of the arterial branch (n=1). The NBCA (N-butyl-cyanoacrylate; n=4), microcoils (n=4), and a combination of these agents (n=7) were used as embolic agents. The most common origin of the DPA in the present study cohort was the splenic artery (n=7), followed by the coeliac trunk (n=4), common hepatic artery (n=4), and superior mesenteric artery (n=4). Technical and clinical success rates were 100% and 84.2% (16/19), respectively. Of the three clinically unsuccessful cases, two patients were revealed to have newly developed bleeding from another artery. The other patient expired 1 day after the TAE procedure due to a progression of hepatic failure. In one patient, an asymptomatic non-target embolisation occurred in the right posterior tibial artery as a procedure-related complication. No major complications were observed. CONCLUSION TAE is safe and effective for the management of bleeding from the DPA. It is important to be aware of the DPA as a potential bleeding source, including the relevant clinical characteristics.
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Affiliation(s)
- A A Alhazemi
- Department of Radiology, King Fahd Central Hospital, Jazan 45196, Saudi Arabia
| | - S Park
- Department of Radiology, Gil Medical Centre, Gachon University College of Medicine, Incheon, Republic of Korea
| | - J H Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Y C Cho
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y Kim
- Department of Radiology Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - J Lee
- Department of Radiology Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - P H Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J W Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H H Chu
- Department of Radiology and Research Institute of Radiology, Asan Medical Centre, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Ho TT, Tran LH, Hoang LT, Doan PKT, Nguyen TT, Nguyen TH, Tran HT, Hoang H, Chu HH, Luong ALT. A novel p.A191D matrilin-3 variant in a Vietnamese family with multiple epiphyseal dysplasia: a case report. BMC Musculoskelet Disord 2020; 21:216. [PMID: 32264862 PMCID: PMC7140548 DOI: 10.1186/s12891-020-03222-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 03/18/2020] [Indexed: 11/23/2022] Open
Abstract
Background Multiple epiphyseal dysplasia (MED) is a common skeletal dysplasia that is characterized by variable degrees of epiphyseal abnormality primarily involving the hip and knee joints. Mutations in a gene encoding matrilin-3 (MATN3) have been reported as disease causing of autosomal dominant MED. The current study identified a novel c.572 C > A variant (p.A191D) in exon 2 of MATN3 in a Vietnamese family with MED. Case presentation A standard clinical tests and radiological examination were performed in an 8-year-old Vietnamese girl patient. The clinical examination showed that patient height was under average, with bent lower limbs, limited mobility and dislocation of the joints at both knees. Radiological documentation revealed abnormal cartilage development at the epiphysis of the femur and patella. The patient has a varus deformity of the lower limbs. The patient was diagnosed with autosomal dominant MED using molecular testing in the order of the coding sequences and flanking sequences of five genes: COMP (exons 8–19), MATN3 (exon 2), COL9A2 (exon 3), COL9A3 (exon 3), COL9A1 (exon 8) by Sanger sequencing. A novel heterozygous missense variant (c.572 C > A, p.A191D) in MATN3 was identified in this family, which were not inherited from parents. The p.A191D was predicted and classified as a pathogenic variant. When the two predicted structures of the wild type and mutant matrilin-3 were compared, the p.A191D substitution caused conformational changes near the substitution site, resulting in deformity of the β-sheet of the single A domain of matrilin- 3. Conclusions This is the first Vietnamese MED family attributed to p.A191D matrilin-3 variant, and our clinical, radiological and molecular data suggest that the novel de novo missense variant in MATN3 contributed to MED.
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Phan HT, Pham VT, Ho TT, Pham NB, Chu HH, Vu TH, Abdelwhab EM, Scheibner D, Mettenleiter TC, Hanh TX, Meister A, Gresch U, Conrad U. Immunization with Plant-Derived Multimeric H5 Hemagglutinins Protect Chicken against Highly Pathogenic Avian Influenza Virus H5N1. Vaccines (Basel) 2020; 8:E593. [PMID: 33050224 PMCID: PMC7712794 DOI: 10.3390/vaccines8040593] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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] [Received: 09/22/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 12/26/2022] Open
Abstract
Since 2003, H5N1 highly pathogenic avian influenza viruses (HPAIV) have not only caused outbreaks in poultry but were also transmitted to humans with high mortality rates. Vaccination is an efficient and economical means of increasing immunity against infections to decrease the shedding of infectious agents in immunized animals and to reduce the probability of further infections. Subunit vaccines from plants are the focus of modern vaccine developments. In this study, plant-made hemagglutinin (H5) trimers were purified from transiently transformed N. benthamiana plants. All chickens immunized with purified H5 trimers were fully protected against the severe HPAIV H5N1 challenge. We further developed a proof-of-principle approach by using disulfide bonds, homoantiparallel peptides or homodimer proteins to combine H5 trimers leading to production of H5 oligomers. Mice vaccinated with crude leaf extracts containing H5 oligomers induced neutralizing antibodies better than those induced by crude leaf extracts containing trimers. As a major result, eleven out of twelve chickens (92%) immunized with adjuvanted H5 oligomer crude extracts were protected from lethal disease while nine out of twelve chickens (75%) vaccinated with adjuvanted H5 trimer crude extracts survived. The solid protective immune response achieved by immunization with crude extracts and the stability of the oligomers form the basis for the development of inexpensive protective veterinary vaccines.
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Affiliation(s)
- Hoang Trong Phan
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), D-06466 Seeland OT Gatersleben, Germany; (A.M.); (U.G.)
| | - Van Thi Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (V.T.P.); (T.T.H.); (N.B.P.); (H.H.C.); (T.H.V.)
- Faculty of Biotechnology, Graduate University of Science and Technology (GUST), VAST, Hanoi 10000, Vietnam
| | - Thuong Thi Ho
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (V.T.P.); (T.T.H.); (N.B.P.); (H.H.C.); (T.H.V.)
| | - Ngoc Bich Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (V.T.P.); (T.T.H.); (N.B.P.); (H.H.C.); (T.H.V.)
- Faculty of Biotechnology, Graduate University of Science and Technology (GUST), VAST, Hanoi 10000, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (V.T.P.); (T.T.H.); (N.B.P.); (H.H.C.); (T.H.V.)
- Faculty of Biotechnology, Graduate University of Science and Technology (GUST), VAST, Hanoi 10000, Vietnam
| | - Trang Huyen Vu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (V.T.P.); (T.T.H.); (N.B.P.); (H.H.C.); (T.H.V.)
- Faculty of Biotechnology, Graduate University of Science and Technology (GUST), VAST, Hanoi 10000, Vietnam
| | - Elsayed M. Abdelwhab
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, D-17493 Greifswald-Insel Riems, Germany; (E.M.A.); (D.S.); (T.C.M.)
| | - David Scheibner
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, D-17493 Greifswald-Insel Riems, Germany; (E.M.A.); (D.S.); (T.C.M.)
| | - Thomas C. Mettenleiter
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, D-17493 Greifswald-Insel Riems, Germany; (E.M.A.); (D.S.); (T.C.M.)
| | - Tran Xuan Hanh
- National Veterinary Joint Stock Company (NAVETCO), 29 Nguyen Dinh Chieu, Dist 1, Ho Chi Minh City 700000, Vietnam;
| | - Armin Meister
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), D-06466 Seeland OT Gatersleben, Germany; (A.M.); (U.G.)
| | - Ulrike Gresch
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), D-06466 Seeland OT Gatersleben, Germany; (A.M.); (U.G.)
| | - Udo Conrad
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), D-06466 Seeland OT Gatersleben, Germany; (A.M.); (U.G.)
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Ho TT, Nguyen GT, Pham NB, Le VP, Trinh TBN, Vu TH, Phan HT, Conrad U, Chu HH. Plant-Derived Trimeric CO-26K-Equivalent Epitope Induced Neutralizing Antibodies Against Porcine Epidemic Diarrhea Virus. Front Immunol 2020; 11:2152. [PMID: 33042128 PMCID: PMC7524870 DOI: 10.3389/fimmu.2020.02152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 08/07/2020] [Indexed: 12/30/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) is a causative agent of a highly infectious disease with a high mortality rate, especially in newborn piglets in Asian countries resulting in serious economic loss. The development of a rapid, safe, effective and cost-efficient vaccine is crucial to protect pigs against PEDV infection. The COE antigen is regarded to be a major target for subunit vaccine development against PEDV infection. The naturally assembled COE protein forms a homotrimeric structure. In the present study, we successfully produced a trimeric COE protein as a native structure by fusion with the C-terminal isoleucine zipper trimerization (GCN4pII) motif in Nicotiana benthamiana, with a high expression level shown via semi-quantified Western blots. Trimeric COE protein was purified via immobilized metal affinity chromatography (IMAC), and its trimeric structure was successfully demonstrated by a cross-linking reaction, and a native PAGE gel. A crude extract containing the COE trimer was used for evaluating immunogenicity in mice. After 1 and 2 booster immunizations, the crude extract containing trimeric COE elicited elevated PEDV-specific humoral responses, as demonstrated by ELISA and Western blot analyses. Notably, a virus-neutralizing antibody assay indicated that the neutralization activities of sera of mice vaccinated with the crude extract containing COE-GCN4pII were similar to those of mice vaccinated with a commercial vaccine. These results suggest that crude extract containing trimeric COE is a promising plant-based subunit vaccine candidate for PEDV prevention.
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Affiliation(s)
- Thuong Thi Ho
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Giang Thu Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Ngoc Bich Pham
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Van Phan Le
- Vietnam National University of Agriculture, Ha Noi, Vietnam
| | | | - Trang Huyen Vu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Hoang Trong Phan
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Udo Conrad
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Ha Hoang Chu
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
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Vuong LD, Ta TV, Chu HH, Truong VL, Nguyen QN. PIK3CA mutation profiling in Vietnamese patients with breast cancer. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Hoang HTT, Nguyen CH, Nguyen NTT, Pham AD, Nguyen HTT, Le TH, Tran HX, Chu HH, Nguyen NT. Immunization with the H5N1 Recombinant Vaccine Candidate Induces High Protection in Chickens against Vietnamese Highly Pathogenic Avian Influenza Virus Strains. Vaccines (Basel) 2020; 8:vaccines8020159. [PMID: 32252383 PMCID: PMC7348806 DOI: 10.3390/vaccines8020159] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 11/25/2022] Open
Abstract
Vietnam is one of the countries most affected worldwide by the highly pathogenic avian influenza (HPAI) virus, which caused enormous economic loss and posed threats to public health. Over nearly two decades, with the antigenic changes in the diversified H5Ny viruses, the limited protective efficacy of the available vaccines was encountered. Therefore, it is necessary to approach a technology platform for the country to accelerate vaccine production that enables quick response to new influenza subtypes. This study utilized a powerful reverse genetics technique to successfully generate a recombinant H5N1 vaccine strain (designated as IBT-RG02) containing two surface proteins (haemagglutinin (HA) and neuraminidase (NA)) from the HPAI H5N1 (A/duck/Vietnam/HT2/2014(H5N1)) of the dominant clade 2.3.2.1c in Vietnam during 2012–2014. Importantly, the IBT-RG02 vaccine candidate has elicited high antibody titres in chickens (geometric mean titre (GMT) of 6.42 and 6.92, log2 on day 14 and day 28 p.i., respectively). To test the efficacy, immunized chickens were challenged with the circulating virulent strains. As results, there was a high protection rate of 91.6% chickens against the virulent A/DK/VN/Bacninh/NCVD-17A384/2017 of the same clade and a cross-protection of 83.3% against A/duck/TG/NAVET(3)/2013 virus of clade 1.1. Our promising results showed that we can independently master the reverse genetics technology for generation of highly immunogenic vaccine candidates, and henceforth, it is a timely manner to reformulate avian influenza virus vaccines against variable H5 clade HPAI viruses in Vietnam.
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Affiliation(s)
- Hang Thi Thu Hoang
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
- Graduate University of Science and Technology (GUST), VAST, Hanoi 100000, Vietnam
| | - Chi Hung Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | - Ngan Thi Thuy Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | - An Dang Pham
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | | | - Thanh Hoa Le
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
| | - Hanh Xuan Tran
- National Veterinary Joint Stock Company (NAVETCO), 29 Nguyen Dinh Chieu, Dist 1, Ho Chi Minh City 700000, Vietnam;
| | - Ha Hoang Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
- Graduate University of Science and Technology (GUST), VAST, Hanoi 100000, Vietnam
| | - Nam Trung Nguyen
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), Hanoi 100000, Vietnam; (H.T.T.H.); (C.H.N.); (N.T.T.N.); (A.D.P.); (T.H.L.); (H.H.C.)
- Graduate University of Science and Technology (GUST), VAST, Hanoi 100000, Vietnam
- Correspondence: ; Tel.: +84-24-37910065
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Ta TV, Nguyen QN, Chu HH, Truong VL, Vuong LD. RAS/RAF mutations and their associations with epigenetic alterations for distinct pathways in Vietnamese colorectal cancer. Pathol Res Pract 2020; 216:152898. [PMID: 32089414 DOI: 10.1016/j.prp.2020.152898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/27/2020] [Accepted: 02/16/2020] [Indexed: 02/07/2023]
Abstract
KRAS, NRAS, and BRAF are potential tumor-driven genes that are involved in the RAS/RAF/MAPK signaling pathway. RAS/RAF mutations importantly contribute to colorectal tumorigenesis since they remain the activated status of downstream pathways without regulation of the upstream EGFR signal. However, it has not been unclear how epigenetic alterations involved in colorectal tumorigenesis mediated by KRAS, NRAS, or BRAF mutations. Therefore, in this study, we investigated the frequency and distribution of KRAS/NRAS/BRAF mutations in Vietnamese colorectal cancer (CRC) and explored the relationship between genetic and epigenetic abnormalities in 156 tumors of CRC. Somatic mutations of KRAS (exon 2, codon 12/13; exon 3, codon 61), NRAS (exon 2, codon 12/13; exon 3, codon 61), and BRAF (exon 15, codon 600) was determined by Cobas® KRAS Mutation Test, Therascreen NRAS Pyro Kit and Cobas® 4800 BRAF V600 Mutation Test, respectively. Methylation status of BRCA1, MLH1, MGMT, p16, RASSF1A, and APC was detected by methylation-specific PCR. Distribution of each abnormality in clinicopathological features was also analyzed. Results showed the mutation rates of KRAS, NRAS, and BRAF were 41.0 %, 9.6 %, 8.3 % respectively, while the methylation rates of BRCA1, MLH1, MGMT, p16, RASSF1A, and APC were 16.7 %, 16.7 %, 32.7 %, 30.1 %, 30.1 %, and 37.2 % respectively. The distribution of KRAS mutation was mutually exclusive against that of NRAS (p < 0.001) and BRAF (p < 0.001) mutations in CRC. RAS/RAF mutations were more common in adenocarcinoma subtype (p = 0.020), whereas RASSF1A methylation was more frequent in mucinous adenocarcinoma subtype (p = 0.007). In addition, the frequency of having KRAS mutations was significantly higher in MGMT (p = 0.035) or RASSF1A (p = 0.043) methylated cases than in those without methylation. BRAF mutations were positively associated with MLH1 hypermethylation (p = 0.028) but were inversely associated with APC hypermethylation (p = 0.032). Overall, our results show specific interactions of genetic and epigenetic alterations and suggest the presence of independent oncogenic pathways in tumorigenesis of CRC.
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Affiliation(s)
- To Van Ta
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam
| | - Quang Ngoc Nguyen
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam
| | - Ha Hoang Chu
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Viet Nam
| | - Van-Long Truong
- Department of Smart Food and Drug, College of BNIT, Inje University, Gimhae 50834, South Korea.
| | - Linh Dieu Vuong
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam.
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Le H, Nguyen NH, Ta DT, Le TNT, Bui TP, Le NT, Nguyen CX, Rolletschek H, Stacey G, Stacey MG, Pham NB, Do PT, Chu HH. CRISPR/Cas9-Mediated Knockout of Galactinol Synthase-Encoding Genes Reduces Raffinose Family Oligosaccharide Levels in Soybean Seeds. Front Plant Sci 2020; 11:612942. [PMID: 33391326 PMCID: PMC7773711 DOI: 10.3389/fpls.2020.612942] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/24/2020] [Indexed: 05/23/2023]
Abstract
Raffinose family oligosaccharides (RFOs) are major soluble carbohydrates in soybean seeds that cannot be digested by human and other monogastric animals. Hence, a major goal is to reduce RFO levels to improve the nutritional quality of soybean. In this study, we utilized a dual gRNAs CRISPR/Cas9 system to induce knockouts in two soybean galactinol synthase (GOLS) genes, GmGOLS1A and its homeolog GmGOLS1B. Genotyping of T0 plants showed that the construct design was efficient in inducing various deletions in the target sites or sequences spanning the two target sites of both GmGOLS1A and GmGOLS1B genes. A subset of induced alleles was successfully transferred to progeny and, at the T2 generation, we identified null segregants of single and double mutant genotypes without off-target induced mutations. The seed carbohydrate analysis of double mutant lines showed a reduction in the total RFO content of soybean seed from 64.7 mg/g dry weight to 41.95 mg/g dry weight, a 35.2% decrease. On average, the stachyose content, the most predominant RFO in soybean seeds, decreased by 35.4% in double mutant soybean, while the raffinose content increased by 41.7%. A slight decrease in verbascose content was also observed in mutant lines. Aside from changes in soluble carbohydrate content, some mutant lines also exhibited increased protein and fat contents. Otherwise, no difference in seed weight, seed germination, plant development and morphology was observed in the mutants. Our findings indicate that GmGOLS1A and GmGOLS1B contribute to the soybean oligosaccharide profile through RFO biosynthesis pathways, and are promising targets for future investigation, as well as crop improvement efforts. Our results also demonstrate the potential in using elite soybean cultivars for transformation and targeted genome editing.
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Affiliation(s)
- Huy Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nhung Hong Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Dong Thị Ta
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Thao Nhu Thi Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Thao Phuong Bui
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Thu Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Cuong Xuan Nguyen
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Hardy Rolletschek
- Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
| | - Gary Stacey
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Minviluz G. Stacey
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science, Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phat Tien Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science, Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- *Correspondence: Phat Tien Do,
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science, Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Ha Hoang Chu,
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Thi Minh Le T, Thi Hong Hoang A, Thi Bich Le T, Thi Bich Vo T, Van Quyen D, Hoang Chu H. Isolation of endophytic fungi and screening of Huperzine A-producing fungus from Huperzia serrata in Vietnam. Sci Rep 2019; 9:16152. [PMID: 31695105 PMCID: PMC6834622 DOI: 10.1038/s41598-019-52481-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 10/18/2019] [Indexed: 11/09/2022] Open
Abstract
Huperzine A (HupA), a natural Lycopodium alkaloid derived from Huperzia serrata (Thunb. ex Murray) Trev. plants, is a highly active acetylcholinesterase inhibitor and a key compound used for treating Alzheimer's disease (AD). Recently, HupA has been reported in various endophytic fungi isolated from H. serrata. In the present study, 153 endophytic fungi were isolated from healthy tissues of H. serrata collected from natural populations in Lam Dong province of Central Vietnam. The endophytic fungi were identified based on morphological characteristics and Internal Transcribed Spacer sequences. Among them, 34 strains were classified into seven genera belonging to Ascomycota, including Alternaria, Fusarium, Trichoderma, Penicillium, Paecilomyces, and Phoma, and eight strains belonging to the genus Mucor (Zygomycota). The other strains remained unidentified. According to the results of thin-layer chromatography and high-performance liquid chromatography, only one of the 153 strains, Penicillium sp. LDL4.4, could produce HupA, with a yield 1.38 mg l-1 (168.9 µg g-1 dried mycelium) when cultured in potato dextrose broth, which was considerably higher than that of other reported endophytic fungi. Such a fungus is a promising candidate and alternative to presently available HupA production techniques for treating AD and preventing further memory decline.
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Affiliation(s)
- Thanh Thi Minh Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam.
| | - Anh Thi Hong Hoang
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Thuy Thi Bich Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Thuy Thi Bich Vo
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Dong Van Quyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, 100000, Vietnam
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Nguyen QN, Vuong LD, Truong VL, Ta TV, Nguyen NT, Nguyen HP, Chu HH. Genetic and epigenetic alterations of the EGFR and mutually independent association with BRCA1, MGMT, and RASSF1A methylations in Vietnamese lung adenocarcinomas. Pathol Res Pract 2019; 215:885-892. [PMID: 30723053 DOI: 10.1016/j.prp.2019.01.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/05/2019] [Accepted: 01/25/2019] [Indexed: 11/25/2022]
Abstract
Genetic and epigenetic alterations importantly contribute to the pathogenesis of lung cancer. In the study, we measured the frequency and distribution of molecular abnormalities of EGFR as well as the aberrant promoter methylations of BRCA1, MGMT, MLH1, and RASSF1A in Vietnamese lung adenocarcinomas. We investigated the association between genetic and epigenetic alteration, and between each abnormality with clinicopathologic parameters. Somatic EGFR mutation that was found in 49/139 (35.3%) lung adenocarcinomas showed a significant association with young age, female gender, and non-smokers. EGFR overexpression was identified in 82 tumors (59.0%) and statistical relationships with EGFR or BRCA1 methylation but not EGFR mutation. In addition, EGFR, BRCA1, MGMT, MLH1, and RASSF1A methylations were found in 33 (23.7%), 41 (29.5%), 46 (33.1%), 28 (20.1%), and 41 (29.5%) cases of a total of 139 lung adenocarcinomas, respectively. The RASSF1A methylation was found to be linked to the smoking habit. Methylations in MGMT and RASSF1A were also found to correlate with metastasis status. Furthermore, the distribution of EGFR mutation and that of BRCA1, MGMT or RASSF1A methylation were significantly exclusive in lung adenocarcinomas. The main finding of our study demonstrate that epigenetic abnormalities might play a critical role for the lung tumorigenesis in patients with smoking history and metastasis, and partly affect the predictive value of EGFR mutations through blocking expression due to promoter EGFR hypermethylation. Mutually exclusive distribution of genetic and epigenetic alterations reflects differently biological characteristics in the etiology of lung adenocarcinomas.
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Affiliation(s)
- Quang Ngoc Nguyen
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam; Biotechnology Department, Graduate University of Science and Technology, Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Viet Nam.
| | - Linh Dieu Vuong
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam
| | - Van-Long Truong
- Department of Smart Food and Drug, College of BNIT, Inje University, Gimhae, 50834, South Korea
| | - To Van Ta
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam
| | - Nam Trung Nguyen
- National Key Laboratory of Gene Technology, Institute Vietnam, Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Viet Nam; Biotechnology Department, Graduate University of Science and Technology, Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Viet Nam
| | - Hung Phi Nguyen
- Pathology and Molecular Biology Center, National Cancer Hospital K, 30 Cau Buou Street, Thanh Tri, Hanoi, Viet Nam.
| | - Ha Hoang Chu
- National Key Laboratory of Gene Technology, Institute Vietnam, Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Viet Nam; Biotechnology Department, Graduate University of Science and Technology, Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay, Hanoi, Viet Nam.
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28
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Vu HNT, Nguyen DT, Nguyen HQ, Chu HH, Chu SK, Chau MV, Phi QT. Antimicrobial and Cytotoxic Properties of Bioactive Metabolites Produced by Streptomyces cavourensis YBQ59 Isolated from Cinnamomum cassia Prels in Yen Bai Province of Vietnam. Curr Microbiol 2018; 75:1247-1255. [PMID: 29869093 DOI: 10.1007/s00284-018-1517-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 05/24/2018] [Indexed: 01/28/2023]
Abstract
The endophytic actinomycete strain YBQ59 was isolated from Cinnamomum cassia Prels in Yen Bai province (21°53'14″N; 104°35'9″E) of northern Vietnam. Based on analysis of morphological, physiological characteristics and 16S rRNA gene sequence (GenBank Acc. No. MF950891), the strain YBQ59 possessed high similarity to Streptomyces cavourensis subsp. cavourensis strain NRRL 2740, therefore assigned as S. cavourensis YBQ59. The ethyl acetate extract of the YBQ59 culture broth isolated eight pure secondary metabolites, identified as 1-monolinolein (1), bafilomycin D (2), nonactic acid (3), daidzein (4), 3'-hydroxydaidzein (5), 5,11-epoxy-10-cadinanol (6), prelactone B (7), and daucosterol (8). Compounds 1, 3-8 were reported for the first time from S. cavourensis. Compounds 1-5 exhibited antimicrobial activities against both methicillin-resistant Staphylococcus aureus ATCC 33591 (MRSA) and methicillin-resistant Staphylococcus epidermidis ATCC 35984 (MRSE) among which the compound 1 revealed the strongest effects with minimum inhibitory concentrations of 8.5 and 14.6 µg/mL, respectively. The compound 2 showed high potential effect against MRSA (MIC of 11.1 µg/mL) but less effect against MRSE (MIC of 30.3 µg/mL). The cytotoxicity of the compounds 1-7 was investigated against human lung adenocarcinoma EGFR-TKI-resistant cells, among which compounds 1, 2, and 5 exhibited the strong effect against A549 cells with IC50 values of 3.6, 6.7, and 7.8 µM, respectively. Taken together, the experimental findings in this study suggested that the compounds 1 and 2 could be reproducible metabolites applicable for inhibition of both drug-resistant bacteria and cancer cell lines.
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Affiliation(s)
- Hanh-Nguyen Thi Vu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Dat Tien Nguyen
- Center for Research and Technology Transfer (CRETECH), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Huy Quang Nguyen
- University of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Ha Hoang Chu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam.,Faculty of Biotechnology, Graduate School of Science and Technology (GUS), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Son Ky Chu
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology (HUST), No.1, Dai Co Viet, Hai Ba Trung, Hanoi, 10000, Vietnam
| | - Minh Van Chau
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
| | - Quyet-Tien Phi
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam. .,Faculty of Biotechnology, Graduate School of Science and Technology (GUS), Vietnam Academy of Science and Technology (VAST), No.18 Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam.
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Tran TT, Nguyen NT, Pham NB, Chu HN, Nguyen TD, Kishimoto T, Van Chau M, Chu HH. Hairy Root Cultures of Eurycoma longifolia and Production of Anti-inflammatory 9-Methoxycanthin-6-one. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The content of bioactive alkaloid 9-methoxycanthin-6-one in the roots of Eurycoma longifolia is rather small. In the current study, a high yield of 9-methoxycanthin-6-one was obtained from transgenic hairy roots (1.139 ± 0.20% dry weight, DW) compared to wild roots (0.164 ± 0.25% DW) of E. longifolia. Three liquid basal media supplemented with 3% sucrose were tested for the growth and accumulation of 9-methoxycanthin-6-one. The fastest growth was obtained in the Shenck and Hildebrandt (SH) medium while the highest 9-methoxycanthin-6-one content was observed in McCown's woody plant (WP) medium. In this study, compared to controls, the production of 9-methoxycanthin-6-one was increased by the maximum of 2.6 and 4.0 times after the addition of jasmonic acid and yeast extract, respectively, into hairy root cultures. In addition, pro-inflammatory cytokines IL-6 and TNF-α were significantly inhibited by 9-methoxycanthin-6-one in lipopolysaccharide-stimulated murine RAW264.7 cells, peritoneal macrophages and human THP-1 macrophages These results suggest that the elicited hairy root culture of E. longifolia is an alternative system for the production of an abundant source of anti-inflammatory 9-methoxycanthin-6-one.
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Affiliation(s)
- Trang Thu Tran
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nam Trung Nguyen
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ngoc Bich Pham
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Huy Nhat Chu
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Trong Dinh Nguyen
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Tadamitsu Kishimoto
- WPI-Immunology Frontier Research Center, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Minh Van Chau
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ha Hoang Chu
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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30
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Pham NB, Ho TT, Nguyen GT, Le TT, Le NT, Chang HC, Pham MD, Conrad U, Chu HH. Nanodiamond enhances immune responses in mice against recombinant HA/H7N9 protein. J Nanobiotechnology 2017; 15:69. [PMID: 28982373 PMCID: PMC5629800 DOI: 10.1186/s12951-017-0305-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 04/10/2017] [Accepted: 09/23/2017] [Indexed: 12/31/2022] Open
Abstract
Background The continuing spread of the newly emerged H7N9 virus among poultry in China, as well as the possibility of human-to-human transmission, has attracted numerous efforts to develop an effective vaccine against H7N9. The use of nanoparticles in vaccinology is inspired by the fact that most pathogens have a dimension within the nano-size range and therefore can be processed efficiently by the immune system, which leads to a potent immune response. Herein, we report a facile approach to increase antigen size to achieve not only fast but also effective responses against the recombinant HA/H7N9 protein via a simple conjugation of the protein onto the surface of nanodiamond particles. Results In this study, trimeric Haemagglutinin (H7) that is transiently expressed in N. benthamiana was purified using affinity chromatography, and its trimeric state was revealed successfully by the cross-linking reaction. The trimeric H7 solution was subsequently mixed with a nanodiamond suspension in different ratios. The successful conjugation of the trimeric H7 onto the surface of nanodiamond particles was demonstrated by the changes in size and Zeta-potential of the particles before and after protein coating, Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), and Western-blot analysis. Next, biofunction of the protein-nanodiamond conjugates was screened using a haemagglutination assay. A mixture containing 5 µg of trimeric H7 and 60 µg of nanodiamond corresponds to a ratio of 1:12 (w/w) of agglutinated chicken red blood cells at HA titer of 1024, which is 512-fold higher than the HA titer of free trimeric H7. After the 2nd and 3rd immunization in mice, ELISA and Western blot analyses demonstrated that the physical mixture of trimeric H7 protein and nanodiamond (1:12, w/w) elicited statistically significant stronger H7-specific-IgG response demonstrated by higher amounts of H7N9-specific IgG (over 15.4-fold with P < 0.05 after the second immunization). Conclusions These results indicated a potential effect inherent to nanodiamond towards modulating immune systems, which should be further evaluated and broadly applied in nanovaccine development.
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Affiliation(s)
- Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Thuong Thi Ho
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Giang Thu Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Thuy Thi Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Ngoc Thu Le
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Huan-Cheng Chang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan, ROC
| | - Minh Dinh Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam.,Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan, ROC
| | - Udo Conrad
- Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
| | - Ha Hoang Chu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam. .,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam.
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Phan HT, Ho TT, Chu HH, Vu TH, Gresch U, Conrad U. Neutralizing immune responses induced by oligomeric H5N1-hemagglutinins from plants. Vet Res 2017; 48:53. [PMID: 28931425 PMCID: PMC5607582 DOI: 10.1186/s13567-017-0458-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/18/2017] [Indexed: 12/20/2022] Open
Abstract
Plant-based transient expression is an alternative platform to produce hemagglutinin-based subunit vaccines. This production system provides not only fast and effective response in the context of a pandemic but also enables the supply of big volume vaccines at low cost. Crude plant extracts containing influenza hemagglutinin are considered to use as vaccine sources because of avoidance of related purification steps resulting in low cost production allowing veterinary applications. Highly immunogenic influenza hemagglutinins are urgently required to meet these pre-conditions. Here, we present a new and innovative way to generate functional H5 oligomers from avian flu hemagglutinin in planta by the specific interaction of S·Tag and S·Protein. A S·Tag was fused to H5 trimers and this construct was transiently co-expressed in planta with S·Protein-TPs which was multimerized by disulfide bonds via cysteine residues in tailpiece sequences (TP) of IgM antibody. Multimerized S·Protein-TPs serve as bridges/molecular docks to combine S·Tag-fused hemagglutinin trimers to form very large hemagglutinin H5 oligomers. H5 oligomers in the plant crude extract were highly active in hemagglutination resulting in high titers. Immunization of mice with two doses of plant crude extracts containing H5 oligomers after storage for 1 week at 4 °C caused strong immune responses and induced neutralizing specific humoral immune responses in mice. These results allow for the development of cheap influenza vaccines for veterinary application in future.
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Affiliation(s)
- Hoang Trong Phan
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
- Institute of Biotechnology, Hanoi, Vietnam
| | - Thuong Thi Ho
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
- Institute of Biotechnology, Hanoi, Vietnam
| | | | | | - Ulrike Gresch
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Udo Conrad
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
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32
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Nguyen NT, Nakahama T, Le DH, Van Son L, Chu HH, Kishimoto T. Aryl hydrocarbon receptor and kynurenine: recent advances in autoimmune disease research. Front Immunol 2014; 5:551. [PMID: 25400638 PMCID: PMC4212680 DOI: 10.3389/fimmu.2014.00551] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [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: 07/30/2014] [Accepted: 10/16/2014] [Indexed: 12/13/2022] Open
Abstract
Aryl hydrocarbon receptor (AHR) is thought to be a crucial factor in the regulation of immune responses. Many AHR-mediated immunoregulatory mechanisms have been discovered, and this knowledge may enhance our understanding of the molecular pathogenesis of autoimmune inflammatory syndromes such as collagen-induced arthritis, experimental autoimmune encephalomyelitis, and experimental colitis. Recent findings have elucidated the critical link between AHR and indoleamine 2,3-dioxygenase (IDO) in the development of regulatory T cells and Th17 cells, which are key factors in a variety of human autoimmune diseases. Induction of IDO and IDO-mediated tryptophan catabolism, together with its downstream products such as kynurenine, is an important immunoregulatory mechanism underlying immunosuppression, tolerance, and immunity. Recent studies revealed that induction of IDO depends on AHR expression. This review summarizes the most current findings regarding the functions of AHR and IDO in immune cells as they relate to the pathogenesis of autoimmune diseases in response to various stimuli. We also discuss the potential link between AHR and IDO/tryptophan metabolites, and the involvement of several novel related factors (such as microRNA) in the development of autoimmune diseases. These novel factors represent potential therapeutic targets for the treatment of autoimmune disorders.
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Affiliation(s)
- Nam Trung Nguyen
- Laboratory of Immune Regulation, WPI-Immunology Frontier Research Center, Osaka University , Suita , Japan ; National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology , Hanoi , Vietnam
| | - Taisuke Nakahama
- Laboratory of Immune Regulation, WPI-Immunology Frontier Research Center, Osaka University , Suita , Japan ; Department of RNA Biology and Neuroscience, Graduate School of Medicine Osaka University , Suita , Japan
| | - Duc Hoang Le
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology , Hanoi , Vietnam
| | - Le Van Son
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology , Hanoi , Vietnam
| | - Ha Hoang Chu
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology , Hanoi , Vietnam
| | - Tadamitsu Kishimoto
- Laboratory of Immune Regulation, WPI-Immunology Frontier Research Center, Osaka University , Suita , Japan
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Van Le S, Le DH, Hoang HT, Hoang H, Nguyen NT, Chu HH. Characterization of rubella virus genotypes among pregnant women in northern Vietnam, 2011-2013. J Med Virol 2014; 87:338-43. [PMID: 25111367 DOI: 10.1002/jmv.24049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2014] [Indexed: 11/12/2022]
Abstract
Rubella virus (RV) infection is an unresolved clinical complication that affects children in developing countries including Vietnam. RV infection during the first trimester of pregnancy causes severe birth defects known as congenital rubella syndrome. This study reports on the genomic characterization of RV strains circulating in northern Vietnam during 2011-2013. RV-IgM positive amniotic fluid specimens were collected from 38 women from northern Vietnam who presented with clinical rubella at the National Hospital of Obstetrics and Gynecology in Hanoi, Vietnam. The RV genes were determined by nested PCR with primers amplifying the 739-nucleotide coding region of the E1 gene. The sequences from the amplified DNA fragments were phylogenetically analyzed and compared to reference RV strains. Seventeen out of 38 samples are positive for RV detecting. All new RV isolates are clustered to genotype 2B. Eighteen amino acid mutations were found in the T and B cell epitopes. These results suggest that genotype 2B RV strains frequently circulate in northern Vietnam. These data describe the RV genotype in Vietnam with the aim of improving maternal and child health in this country.
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Affiliation(s)
- Son Van Le
- Laboratory of Applied DNA Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam; National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Jeng H, Chu HH, Cheng WT, Chang WC, Su SJ. Secretory origin and temporal appearance of the porcine beta-microseminoprotein (sperm motility inhibitor) in the boar reproductive system. Mol Reprod Dev 2001; 58:63-8. [PMID: 11144222 DOI: 10.1002/1098-2795(200101)58:1<63::aid-mrd9>3.0.co;2-h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A specific antiserum against the porcine sperm motility inhibitor (SMI) was used in Western blotting analysis of tissue homogenates to reveal the possible origin of SMI in the boar reproductive system at different ages. The ages of the boar used were day 0, day 15, day 30, day 60, day 100, day 120, day 135, day 150, and day 210. The tissue homogenates of the day 60 and older showed immunoreaction. The results were further checked by indirect immunohistochemical staining and observed under light microscope. The SMI antigen appeared in the epithelial cells and in the lumen of the secretory ducts of the prostate gland. These results indicate that porcine SMI is synthesized only by the postnatal prostate gland. The homogenate of the prostate gland of day 100 was also used for the purification of SMI. The prostatic SMI was co-eluted with the seminal SMI in the reversed phase HPLC. Mass spectrometric analysis of the prostatic SMI revealed a molecular weight of 10,066. These results indicate that the prostatic SMI is identical to that purified from seminal plasma (Jeng et al., 1993; Biochem Biophys Res Communi 191:435-440).
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Affiliation(s)
- H Jeng
- Department of Anatomy, Taipei Medical College, Taiwan
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Flaxel CJ, Friedrichsen EJ, Smith JO, Oeinck SC, Blacharski PA, Garcia CA, Chu HH. Proton beam irradiation of subfoveal choroidal neovascularisation in age-related macular degeneration. Eye (Lond) 2000; 14 ( Pt 2):155-64. [PMID: 10845009 DOI: 10.1038/eye.2000.46] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
PURPOSE To assess the safety and potential toxicity of proton beam radiation in the treatment of subfoveal choroidal neovascular membrane (CNVM) due to age-related manner degeneration (ARMD) in a prospective, non-randomised study. METHODS Forty-eight eyes of 46 consecutive patients with subfoveal CNVM due to ARMD, not amenable to laser photocoagulation, were treated prospectively with a single proton beam exposure. Two dose regimens were evaluated: 8 CGE (Cobalt Gray Equivalent) and 14 CGE. Patients were followed for an average of 22.1 months after proton beam treatment. RESULTS At the 12 month follow-up, 44% of eyes in the 8 CGE group and 75% of the eyes in the 14 CGE group had stabilized or improved visual acuity. Complex size in the 8 CGE group as measured on standard fluorescein angiography (FA), decreased or had no change initially but showed less effect over time, while the eyes treated with 14 CGE maintained decreased leakage over the follow-up period of 12 months. However, 11 eyes in the 14 CGE group experienced radiation retinopathy, with the onset between 3 and 30 months. Seven of these 11 eyes have demonstrated some visual loss but only 1 eye developed severe visual loss at 15 months after proton treatment. CONCLUSIONS To date, 14 CGE has suggested a favourable influence on visual function and growth inhibition of CNVM. Proton beam irradiation appears to inhibit CNVM growth. The 14 CGE dose regimen appears to have a longer effect of CNVM growth than does 8 CGE, with overall stabilisation of visual function and growth inhibition. Radiation retinopathy has developed over time, but severe visual loss has been limited. On the basis of the incidence of radiation retinopathy, adjustments in the total radiation dosage and/or fractionation of the dosage should be considered.
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Affiliation(s)
- C J Flaxel
- Department of Ophthalmology, Loma Linda University Medical Center, California, USA.
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Bang YH, Chu HH, Park SH, Kim JH, Cho JW, Kim YS. The fallacy of the levator expansion theory. Plast Reconstr Surg 1999; 103:1788-91; discussion 1792-3. [PMID: 10323723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- Y H Bang
- Department of Plastic Surgery at Inha General Hospital, Songnam, Korea
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Chen YJ, Chu HH. [Effect of early intervention on the interaction of developmentally delayed infants and their mothers]. Gaoxiong Yi Xue Ke Xue Za Zhi 1995; 11:697-707. [PMID: 8551531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The purpose of this study was (1) to examine the interaction patterns of mothers and their developmentally delayed infants during free play and instructional episodes; (2) to investigate the influence of an early intervention program on the interaction patterns of mothers and their developmentally delayed infants; and (3) to investigate to what extent the maternal perceptions and expectations, perceived stress and involving motivation were associated with maternal behavior while interacting with their developmentally delayed infants. The participants of this study were twenty-one developmentally delayed infants and their mothers. Each mother-child dyad was videotaped in a laboratory playroom for 10-minutes of free play and a 5-minute instructional session. Mental and psychomotor development of the child were measured by Bayley scale. The perception of child development, expectation, and the stress of mothers were measured by a self-report questionnaire which was designed by a researcher in this study. The mothers' motivation of involvement was evaluated by teachers. On year after early intervention, it was found that (1) developmentally delayed infants increased locomotion, (2) mothers demonstrated more positive emotional expression during mother-child interaction, and (3) the score of HOME, mother's involvement, and the quality of mother-child interaction which was evaluated by teachers were significantly increased. Furthermore, the differences between situations indicated that the developmentally delayed infants were more toy-oriented during play than instruction. The mothers tended to be more helpful in attitude while they instructed their children. The mother's perception of child development and stress were found to be the critical factors affecting maternal teaching, controlling, and caring behavior.
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Affiliation(s)
- Y J Chen
- Department of Child Care and Education, Foo Yin Junior College, Talias, Kaohsiung Hsien, Taiwan, Republic of China
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Hanis CL, Chu HH, Lawson K, Hewett-Emmett D, Barton SA, Schull WJ, Garcia CA. Mortality of Mexican Americans with NIDDM. Retinopathy and other predictors in Starr County, Texas. Diabetes Care 1993; 16:82-9. [PMID: 8422837 DOI: 10.2337/diacare.16.1.82] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To determine the rate and risk factors of mortality in a cohort of Mexican Americans with NIDDM. RESEARCH DESIGN AND METHODS A cohort of 353 Mexican Americans with NIDDM were identified between 1981 and 1986. All individuals underwent extensive evaluations that included physical, historical, ophthalmological, and laboratory assessments. This cohort was followed prospectively for a mean of 8 yr. Follow-up included mortality surveillance, death certificate extraction, and a combination of annual and intermediate examinations. RESULTS The cohort experienced 67 mortality events. One-third of all deaths were premature < 65 yr of age) and most often were attributed to diseases of the heart (60.0%). In no case was diabetes listed as the cause of death, although it was listed as a contributing cause in 25.5% of cases. Men had a higher mortality rate than women. In both sexes, baseline retinopathy was identified as an important predictor of subsequent mortality. Mortality was significantly elevated in those with nonproliferative retinopathy and even further elevated in those with proliferative disease (relative risks of > or = 4 for proliferative disease). CONCLUSIONS Mexican Americans with NIDDM are experiencing premature and excessive mortality compared with the general population. The results clearly link microvascular complications with macrovascular disease, but this link is not explained by a more untoward profile of traditional cardiovascular risk factors. Retinopathy appears to serve as an important monitor of the progression of diabetes and when identified would warrant aggressive action to inhibit or slow the processes leading to subsequent mortality.
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Affiliation(s)
- C L Hanis
- Center for Demographic and Population Genetics, Graduate School of Biomedical Sciences, University of Texas Health Science Center, Houston 77225
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Abstract
In 27 normal subjects and 64 insulin-dependent diabetic patients, we evaluated the pattern electroretinogram, which may reflect the neural activity of the spatially sensitive retinal ganglion cells. The amplitude of the pattern electroretinogram was reduced in diabetic patients who had no observable retinal changes. The amplitude was further reduced with increasing retinopathy. The pattern electroretinogram amplitude change was a more sensitive indicator of retinal change among the diabetic subpopulations than the statistically significant changes in latency. A significant correlation between pattern electroretinogram amplitude and the duration of diabetes were found in diabetic patients with either no observable retinopathy or minimal background retinopathy. The pattern electroretinogram may be useful as a quantitative, dependent variable to establish and monitor short-term metabolic and physiologic changes in diabetic patients.
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Affiliation(s)
- T C Prager
- Department of Ophthalmology, University of Texas Medical School, Houston
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Abstract
Electron microscopic analysis of intravitreal strands produced by the injection of autogenous fibroblasts showed thin, immature collagen after two weeks and the mature banded variety after four weeks. With the use of this intravitreal strand model, it was found that highly purified bacterial collagenase caused extensive digestion of scar tissue after incubation periods of 10, 15, and 30 minutes. There was no morphologic damage to cicatricial cellular elements or to the inner limiting membrane of the retina. A 45-minute exposure of retinas previously injured by photocoagulation to collagenase also did not result in morphologic evidence of damage. The use of collagenase as an adjunct to vitrectomy in cases of extreme vitreal scarring or retinal traction may decrease the complication rate of a procedure that is still extremely hazardous.
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Prager TC, Chu HH, Garcia CA, Anderson RE, Field JB, Orzeck EA, Comstock JP. The use of vitreous fluorophotometry to distinguish between diabetics with and without observable retinopathy: effect of vitreous abnormalities on the measurement. Invest Ophthalmol Vis Sci 1983; 24:57-65. [PMID: 6826315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Ten age-matched normals, diabetics with retinopathy, and diabetics without observable retinopathy were evaluated by vitreous fluorophotometry (VFL) using a 0.15 mm and a 0.45 fiberoptic probe in a photomultiplier system as well as a commercially available photodiode instrument to determine whether differences in intraocular sodium fluorescein levels could be detected among the three groups. Each subject was injected in the antecubital vein with 7 mg/kg of sodium fluorescein (25% solution) and measurements were taken 1 hr postinjection at 4.5 mm and 7.5 mm from the retina. The influence of choroidal fluorescein and ocular pigmentation are reduced at these locations. We found that a breakdown in the blood-ocular barrier may not be present early in the course of diabetes. Furthermore, no significant difference was found between normals and diabetics without retinopathy. Although the mean value for vitreous fluorescein was significantly higher in diabetics with retinopathy compared to normals, several of the diabetics with retinopathy had values in the normal range. These results differ from those previously reported in the literature. However, our studies took into consideration several factors not considered by other investigators, such as ocular pigmentation, choroidal fluorescence, slit width, and vitreous changes, that may have significant effects on the fluorophotometry values.
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Abstract
Thirteen patients with retinitis pigmentosa were graded in terms of vitreous change and compared by vitreous fluorophotometry to an equal number of normal patients. A highly significant difference was found between groups. A high correlation was also noted between severity of vitreous change and midvitreous fluorophotometry values. Certain types of vitreous detachments appear to produce a characteristic "cancer hump" in the resultant data. A possible explanation for the increased values is discussed.
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Chu HH, Chang CM, Lu HY, Pan MM. Preliminary clinical observations of luteinizing hormone-releasing hormone stimulation test. Chin Med J (Engl) 1978; 4:343-8. [PMID: 102492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Chu HH, Wang TK, Sha SL, Chung HL, Ch'iu CL. Antidiuretic effect of hydrochlorothiazide in diabetes insipidus. Chin Med J 1965; 84:646-54. [PMID: 5863866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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