1
|
Binh VD, Thi Thanh Nga H, Thanh NH, Thanh NH, Tai LP, Hung NQ. Characteristics of unexpected antibodies in patients with blood disorders: Evidence in Vietnam. Transfus Apher Sci 2024; 63:103878. [PMID: 38388334 DOI: 10.1016/j.transci.2024.103878] [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: 10/10/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 02/24/2024]
Abstract
BACKGROUND In Vietnam, a lack of evidence about the unexpected antibodies hinders the capabilities to prepare the necessary resources and personnel for treating patients with blood disorders. This study aimed to measure the rates of different unexpected antibodies in patients having blood orders in Vietnam. STUDY DESIGN AND METHODS A cross-sectional study was conducted at the National Institute of Hematology - Blood Transfusion, Vietnam on 5608 patients with blood disorders. Information was obtained from the medical records, blood transfusion forms, screening test forms. RESULTS The prevalence rate of unexpected antibodies in patients with haematological disorders was 9.3%. The most prevalent occurrence was the presence of an atypical antibody type, accounting for 61% of patients. The co-occurrence of this atypical antibody type and other types of antibodies was also observed, with the respective occurrence rates of 23.9%, 10.1%, 3.8%, and 1.2% for the combination of two, three, four, and five unexpected antibody types. The presence of one type of unexpected antibody was predominant, namely anti-E, accounting for the highest proportion (32.9%), followed by anti-Mia (18.4%). Among the 125 patients, the most frequently observed combination of abnormal antibodies was anti-E with anti-c (14.3%) and anti-E with anti-Mia (3.4%). Among the cohort of 53 patients exhibiting three types of unexpected antibodies, the most prevalent combination observed was anti-c, anti-E, and anti-Mia (5.7%). CONCLUSION This study revealed a prevalence rate of 9.3% in the presence of unexpected antibodies in patients with blood disorders. The occurrence of individual unexpected antibodies surpasses that of coordinated antibodies.
Collapse
Affiliation(s)
- Vu Duc Binh
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| | | | - Nguyen Ha Thanh
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| | - Nguyen Hoang Thanh
- School of Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam
| | - Le Phu Tai
- Gastroenterology and Hepatology Center, Bach Mai Hospital, Hanoi, Vietnam
| | - Nguyen Quang Hung
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| |
Collapse
|
2
|
Khanh BQ, Binh VTT, Thanh NH, Huong DPT, Thuy DT, Ha NK, Childs RW. Forging international collaboration and alliances to establish the largest transplant center in the north of Vietnam. Semin Hematol 2023; 60:243-250. [PMID: 37723024 DOI: 10.1053/j.seminhematol.2023.08.003] [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: 07/21/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/20/2023]
Abstract
Through collaboration with international experts, our institution established a highly active and successful hematopoietic stem cell transplant program, providing access to this potentially curative treatment modality for patients with a variety of benign and malignant hematological diseases. The initial development of an autologous stem cell transplant program provided our institution with the infrastructure, equipment, and expertise needed for the subsequent development of an allogeneic stem cell transplant program. Key transplant staff received training from international transplant experts at the NHLBI/NIH, the Mayo Clinic, the Johns Hopkins Hospital, and Nagoya Japan, providing them with the expertise to conduct a variety of different transplant approaches, including PBSC transplants from HLA-matched relatives, unrelated cord blood transplants, haploidentical transplants, and CD34 selected stem cell transplants. Patient characteristics were varied among all groups. The number of allogeneic and autologous transplants performed at the NIHBT has increased steadily every year since the initiation of our transplant program. By 2022, 547 transplant procedures had been performed, including 268 autologous and 279 allogeneic transplants. Allogeneic transplants were performed for both malignant and nonmalignant hematological diseases, with acute leukemia (AL) being the most common indication for allogeneic HCT. The majority of recipients undergoing allogeneic transplantation received G-CSF mobilized PBSC allografts from either HLA identical or haplo-identical relatives, with a smaller percentage of patients receiving a UCB transplant or a PBSC allograft that had been CD34+ selected. Amongst the 279 recipients of an allogeneic transplant, mortality rates within day 100 and beyond day 100 were 12.6% and 26.2% respectively. Overall survival (OS) and event-free survival at 5 years in benign and malignant subgroups were 81% and 73% vs 52% and 48% respectively. Through collaboration with international transplant experts, the National Institute of Hematology and Blood Transfusion in Hanoi has stood up the most active transplant center in the northern region of Vietnam. Patients coming from low-income financial backgrounds are now able to receive a variety of different state-of-the-art transplant approaches that are affordable and have been associated with excellent long-term outcomes.
Collapse
Affiliation(s)
- Bach Quoc Khanh
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| | - Vo Thi Thanh Binh
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam.
| | - Nguyen Ha Thanh
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| | | | - Do Thi Thuy
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| | - Nguyen Khanh Ha
- National Institute of Hematology and Blood Transfusion, Hanoi, Vietnam
| | - Richard W Childs
- Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD
| |
Collapse
|
3
|
Ha HTA, Nguyen PTL, Hung TTM, Tuan LA, Thuy BT, Lien THM, Thai PD, Thanh NH, Bich VTN, Anh TH, Hanh NTH, Minh NT, Thanh DP, Mai SNT, The HC, Trung NV, Thu NH, Duong TN, Anh DD, Ngoc PT, Bañuls AL, Choisy M, van Doorn HR, Suzuki M, Hoang TH. Prevalence and Associated Factors of optrA-Positive- Enterococcus faecalis in Different Reservoirs around Farms in Vietnam. Antibiotics (Basel) 2023; 12:954. [PMID: 37370273 DOI: 10.3390/antibiotics12060954] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Linezolid is an antibiotic of last resort for the treatment of infections caused by Gram-positive bacteria, including vancomycin-resistant enterococci. Enterococcus faecalis, a member of enterococci, is a significant pathogen in nosocomial infections. E. faecalis resistance to linezolid is frequently related to the presence of optrA, which is often co-carried with fex, phenicol exporter genes, and erm genes encoding macrolide resistance. Therefore, the common use of antibiotics in veterinary might promote the occurrence of optrA in livestock settings. This is a cross-sectional study aiming to investigate the prevalence of optrA positive E. faecalis (OPEfs) in 6 reservoirs in farms in Ha Nam province, Vietnam, and its associated factors and to explore genetic relationships of OPEfs isolates. Among 639 collected samples, the prevalence of OPEfs was highest in flies, 46.8% (51/109), followed by chickens 37.3% (72/193), dogs 33.3% (17/51), humans 18.7% (26/139), wastewater 16.4% (11/67) and pigs 11.3%, (14/80). The total feeding area and total livestock unit of the farm were associated with the presence of OPEfs in chickens, flies, and wastewater. Among 186 OPEfs strains, 86% were resistant to linezolid. The presence of optrA was also related to the resistant phenotype against linezolid and levofloxacin of E. faecalis isolates. Close genotypic relationships identified by Pulsed Field Gel Electrophoresis between OPEfs isolates recovered from flies and other reservoirs including chickens, pigs, dogs, and wastewater suggested the role of flies in the transmission of antibiotic-resistant pathogens. These results provided warnings of linezolid resistance although it is not used in livestock.
Collapse
Affiliation(s)
- Hoang Thi An Ha
- Hanoi Medical University, Hanoi 100000, Vietnam
- Department of Microbiology, Vinh Medical University, Vinh 431000, Vietnam
| | | | - Tran Thi Mai Hung
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Le Anh Tuan
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Bui Thanh Thuy
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | | | - Pham Duy Thai
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Nguyen Ha Thanh
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | | | | | - Ngo Thi Hong Hanh
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Nguyen Thi Minh
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Duy Pham Thanh
- Oxford University Clinical Research Unit, Ho Chi Minh City 700000, Vietnam
| | - Si-Nguyen T Mai
- Oxford University Clinical Research Unit, Ho Chi Minh City 700000, Vietnam
| | - Hao Chung The
- Oxford University Clinical Research Unit, Ho Chi Minh City 700000, Vietnam
| | - Nguyen Vu Trung
- Pasteur Institute in Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
| | | | - Tran Nhu Duong
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Dang Duc Anh
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| | - Pham Thi Ngoc
- National Institute of Veterinary Research, Hanoi 100000, Vietnam
| | - Anne-Laure Bañuls
- MIVEGEC (IRD-CNRS-Université de Montpellier), LMI DRISA, Centre IRD, 34394 Montpellier, France
| | - Marc Choisy
- Oxford University Clinical Research Unit, Ho Chi Minh City 700000, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX1 4BH, UK
| | - H Rogier van Doorn
- Oxford University Clinical Research Unit, Hanoi 100000, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX1 4BH, UK
| | - Masato Suzuki
- National Institute of Infectious Diseases, Tokyo 162-0052, Japan
| | - Tran Huy Hoang
- Hanoi Medical University, Hanoi 100000, Vietnam
- National Institute of Hygiene and Epidemiology, Hanoi 100000, Vietnam
| |
Collapse
|
4
|
Thanh NH, Bao LQ, Pham-The H, Anh DTT, Van Kiem P. Synthesis, Molecular Docking, and Cytotoxic Evaluation of Fluorinated Podophyllotoxin Derivatives. Nat Prod Commun 2023. [DOI: 10.1177/1934578x231153733] [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] [Indexed: 02/05/2023] Open
Abstract
Objective: The study was conducted to evaluate the in vitro and in silico anticancer activity of fluorinated podophyllotoxin derivatives. Methods: Microwave-assisted multicomponent reactions were carried out in an Anton Paar Microwave Synthetic Reactor Monowave 400 in order to synthesize fluorinated podophyllotoxin derivatives. These products were identified by spectral analysis and evaluated for their cytotoxicity against 4 types of human cancer cell lines (KB, HepG2, A549, and MCF7), as well as human embryonic kidney (Hek) 293 cells using MTT protocol. Molecular docking was conducted using 2 crystal structures of tubulin—colchicine (PDB ID: 4O2B) and topoisomerase II—etoposide (PDB ID: 3QX3) complexes. Results: Two potent cytotoxic fluorinated podophyllotoxin–naphthoquinone compounds were synthesized in good yields. They displayed high cytotoxic activity against all the tested cell lines, with IC50 values ranging from 0.58 to 3.17 µM. Notably, product 8a showed low toxicity against the Hek-293 cell line. Molecular docking results showed that products 8a and 8b participated in the same key interactions provided by etoposide with both topoisomerase and DNA chain domains. The binding energy values calculated for 8a and 8b are acceptable. Conclusion: This study revealed that products 8a and 8b exhibited promising in vitro and in silico anticancer activity and could be recognized as promising anticancer agents.
Collapse
Affiliation(s)
- Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam
| | | | | | - Dang Thi Tuyet Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam
| | - Phan Van Kiem
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| |
Collapse
|
5
|
Thanh NH, Phuong HT, Tu Anh LT, Thuy Giang LN, Quynh Giang NT, Anh NT, Tuyet Anh DT, Van Kiem P. Synthesis and Cytotoxic Evaluation of Fluoro and Trifluoromethyl Substituents Containing Novel Naphthoquinone-Fused Podophyllotoxins. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221133196] [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] [Indexed: 11/07/2022] Open
Abstract
A series of novel naphthoquinone-fused podophyllotoxins containing fluoro and trifluoromethyl substituents were synthesized in a medium with good yields using two different synthetic approaches: microwave-assisted four-component reactions of 2-hydroxy-1,4-naphthoquinone, tetronic acid, fluorinated arylaldehydes, and ammonium acetate, and microwave-assisted three-component reactions of 2-amino-1,4-naphthoquinone, tetronic acid, and fluorinated arylaldehydes. The structures of all products were confirmed by spectral analysis. Together, cytotoxicity assessment of the products against four human cancer cell lines (human carcinoma [KB], human hepatocellular carcinoma [HepG2], lung cancer [A549], breast carcinoma [MCF7], and human embryonic kidney [Hek-293]) was performed by MTT assay. Among the obtained compounds, compound 7f turned out to be the most potent anticancer agent with significant cytotoxic activity against KB, HepG2, and MCF cancer cell lines.
Collapse
Affiliation(s)
- Nguyen Ha Thanh
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hoang Thi Phuong
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Le Nhat Thuy Giang
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Quynh Giang
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Tuan Anh
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Dang Thi Tuyet Anh
- Department of Chemical Synthesis, Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phan Van Kiem
- Department of Molecular Structural Research, Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Department of Chemistry, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| |
Collapse
|
6
|
Cuc DT, Hien NT, Doan VN, Thuan TD, Anh DTT, Thanh NH, Ha TT, Nga NT, Tuyet NTK, Kiem PV. Design and Synthesis of New 2-Aminobenzamide Derivatives Containing Benzothiazole and Phenylamine Moiety and Their Cytotoxicity. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221116188] [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] [Indexed: 11/17/2022] Open
Abstract
Twelve new compounds including 2-aminobenzamide derivatives bearing benzothiazole and phenylamine moiety were designed and synthesized. The synthesized compounds were tested their cytotoxic activity against A549 and SW480 tumor cell lines. Compounds 3a and 3c exhibited cytotoxicity toward A549 cell line with IC50 values of 24.59 and 29.59 µM, respectively.
Collapse
Affiliation(s)
- Dinh Thi Cuc
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, VAST, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Hien
- Faculty of Environment, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Hanoi, Vietnam
| | - Vu Ngoc Doan
- Le Quy Don Technical University, Cau Giay, Hanoi, Vietnam
| | - Tran Dang Thuan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, VAST, Cau Giay, Hanoi, Vietnam
| | - Dang Thi Tuyet Anh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, VAST, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, VAST, Cau Giay, Hanoi, Vietnam
| | - Trinh Thu Ha
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, VAST, Cau Giay, Hanoi, Vietnam
| | | | | | - Phan Van Kiem
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
7
|
Thanh NH, Thu Ha NT, Tra NT, Tu Anh LT, The Son N, Tuyen NV, Van Kiem P. Bannaxanthone E Induced Cell-Cycle Arrest and Apoptosis in Human Lung Cancer Cell Line. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211059010] [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] [Indexed: 11/16/2022] Open
Abstract
The anti-cancer activity of bannaxanthone E isolated from Garcinia mckeaniana leaves was assessed through a flow cytometric method on human lung SK-LU-1 cancer cells, including cell cycle changes and induction of cell apoptosis. Treatment with bannaxanthone E led to the suppression of cell cycle progression at the G2/M phase to 19.6% at 4 µM, and induced apoptosis via cell morphological changes, increased the fluorescence signal in caspase-3/7 activation, and accumulation of apoptotic cells in the SK-LU-1 line at 4 µM to 25.7%.
Collapse
Affiliation(s)
- Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thi Thu Ha
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Thanh Tra
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| |
Collapse
|
8
|
Thanh NH, Phuong HT, Giang LNT, Giang NTQ, Ha NTT, Anh DTT, Cuong VD, Van Tuyen N, Van Kiem P. 4-(Dimethylamino)pyridine as an Efficient Catalyst for One-Pot Synthesis of 1,4-Pyranonaphthoquinone Derivatives viaMicrowave-Assisted Sequential Three Component Reaction in Green Solvent. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211053951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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
Novel 1,4-pyranonaphthoquinone derivatives were successfully synthesized via the microwave-assisted three-component reaction of 1,4-naphthoquinone, malononitrile, and various arylaldehydes in ethanol in the presence of 4-(dimethylamino)pyridine (DMAP) as a catalyst, and subsequently evaluated in terms of their antimicrobial and antifungal activities. This synthetic procedure has the notable advantages of environmental friendliness, short reaction time, good yield, and convenient operation.
Collapse
Affiliation(s)
- Nguyen Ha Thanh
- Institute of Chemistry, 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
| | - Hoang Thi Phuong
- Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Le Nhat Thuy Giang
- Institute of Chemistry, 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
| | - Nguyen Thi Quynh Giang
- Institute of Chemistry, 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
| | - Nguyen Thi Thu Ha
- Institute of Chemistry, 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
| | - Dang Thi Tuyet Anh
- Institute of Chemistry, 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
| | - Vu Duc Cuong
- Viet Tri University of Industry, Viet Tri, Phu Tho, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, 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
| | - Phan Van Kiem
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
9
|
Thuy Giang LN, Anh DTT, Phuong HT, Thanh NH, Giang NTQ, Anh NT, Tuyen NV, Kiem PV. DMAP-catalyzed Efficient and Convenient Approach for the Synthesis of 3,3′-(Arylmethylene)bis(2-Hydroxynaphthalene-1,4-Dione) Derivatives. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211045808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
For the first time the 4-dimethylaminopyridine (DMAP) catalyzed straightforward and efficient procedure has been developed for the synthesis of 3,3′-(arylmethylene) bis(2-hydroxynaphthalene-1,4-dione) derivatives starting from lawsone (2-hydroxy-1,4-naphthoquinone) and a variety of (hetero)aromatic aldehydes in ethanol under microwave irradiation. Three of nine synthesized compounds are new. This method provides notable advantages over existing procedures including use of non-traditional basic catalyst and environmentally benign solvent, mild reaction conditions, excellent yields, short reaction time and simple workup.
Collapse
Affiliation(s)
- Le Nhat Thuy Giang
- Institute of Chemistry, 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
| | - Dang Thi Tuyet Anh
- Institute of Chemistry, 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
| | - Hoang Thi Phuong
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, 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
| | - Nguyen Thi Quynh Giang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Tuan Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, 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
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
10
|
Tuyet Anh DT, Cuc DT, Thuy Giang LN, Hien NT, Doan VN, Thanh NH, Tuyen NV, Van Kiem P. Design, Synthesis, and Cytotoxic Evaluation of Novel Lupane Triterpenoid Derived Hydroxamates. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20931967] [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] [Indexed: 11/16/2022] Open
Abstract
A series of new hydroxamate derivatives of lupane triterpenoids has been designed and successfully synthesized. The synthesized compounds were evaluated for their in vitro antitumor activity using the 3-[4,5-dimethylthiazol-2-yl]−2,5-diphenyltetrazolium bromide-based assay against the human cancer cell lines KB and HepG2. Most of these derivatives possess at least moderate cytotoxic activity and the hydroxamate derivative compounds 3c, 3e, 7a, and 15b could be lead compounds for further optimization to develop novel anticancer agents.
Collapse
Affiliation(s)
- Dang Thi Tuyet Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Dinh Thi Cuc
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Le Nhat Thuy Giang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Hien
- Faculty of Environment, Vietnam National University of Agriculture, Vietnam
| | - Vu Ngoc Doan
- Le Quy Don Technical University, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| |
Collapse
|
11
|
Dung NT, Giang LNT, Thu PH, Thuong NH, Tuyet Anh DT, Tan LQ, Thanh NH, Anh LTT, Anh NT, Giang BL, Tuyen NV, Kiem PV. Synthesis and Cytotoxic Evaluation of Carboxylic Acid-Functionalized Indenoisoquinolines. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19849787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In order to find out the influence of carboxylic acid functionalities in the N-lactam side chains of indenoisoquinolines on cytotoxic activities, several new compounds have been synthesized and structurally characterized by analytical and spectral methods. The incorporation of a carboxylic acid group into the lactam side chain of indenoisoquinolines results in differences in cytotoxicity. The results indicated that compound 18c displayed substantial cytotoxic specificity toward KB and HepG2 cancer cells.
Collapse
Affiliation(s)
- Nguyen Tien Dung
- Vietnam University of Traditional Medicine, Ha Dong, Ha Noi, Vietnam
| | - Le Nhat Thuy Giang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Cau Giay, Hanoi, Vietnam
| | - Pham Hoai Thu
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Ngo Hanh Thuong
- Vietnam University of Traditional Medicine, Ha Dong, Ha Noi, Vietnam
| | - Dang Thi Tuyet Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Cau Giay, Hanoi, Vietnam
| | - Luc Quang Tan
- Thai Nguyen University-Lao Cai Campus, Lao Cai City, Lao Cai Province, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Nguyen Tuan Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | | | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
12
|
Chinh PT, Anh ĐTT, Quynh DH, Giang LNT, Thanh NH, Thanh HT, Tam KT, Tham PT, Anh LTT, Phuong HT, Van Tuyen N, Van Kiem P. Synthesis of New Simplified and Racemic Hemiasterlin Derivatives with Extremely High Cytotoxicity. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301225] [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] [Indexed: 11/15/2022] Open
Abstract
Hemiasterlin is a potent antimitotic agent acting through inhibition of microtubule depolymerization. For this reason, the synthesis of new hemiasterlin derivatives has attracted a lot of interest in the organic chemistry community recently. In this paper, the synthesis and evaluation of the cytotoxicity of new simplified and racemic hemiasterlin derivatives were reported. All of the synthesized analogues were evaluated in vitro for cytotoxic activity against four human cell lines (KB, Hep-G2, LU and MCF7). Most of these analogues possess a strong cytotoxic activity on two human cancer cell lines (KB and Hep-G2) and very weak activity on LU and MCF7 cell lines.
Collapse
Affiliation(s)
- Pham The Chinh
- Thai Nguyen University of Sciences, Tan Thinh, Thai Nguyen, Vietnam
| | - Đang Thi Tuyet Anh
- Insitute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate Universty of Science and Technology, VAST, 18- Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Duong Huong Quynh
- Graduate Universty of Science and Technology, VAST, 18- Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Nhat Thuy Giang
- Insitute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Insitute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Thanh
- Thai Nguyen University of Sciences, Tan Thinh, Thai Nguyen, Vietnam
| | - Khieu Thi Tam
- Thai Nguyen University of Sciences, Tan Thinh, Thai Nguyen, Vietnam
| | - Pham Thi Tham
- Hanoi University of Industry, Number 298, Cau Dien, Bac Tu Liem, Hanoi, Vietnam
| | - Le Thị Tu Anh
- Insitute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Phuong
- Insitute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Insitute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate Universty of Science and Technology, VAST, 18- Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate Universty of Science and Technology, VAST, 18- Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
13
|
Giang LNT, Nga NT, Van DT, Anh DTT, Phuong HT, Thanh NH, Anh LTT, Trung VQ, Van Tuyen N, Van Kiem P. Design, Synthesis and Cytotoxic Evaluation of 4-Anilinoquinazoline– triazole–AZT Hybrids as Anticancer Agents. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301215] [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: 11/16/2022] Open
Abstract
A series of 4-anilinoquinazoline–triazole–AZT hybrids were designed and synthesized as anticancer agents. Their cytotoxic potential has been evaluated by means of a micro-dilution assay against three human cancer cell lines (KB, epidermoid carcinoma; HepG2, hepatoma carcinoma; SK-Lu-1, non-small lung cancer). The biological results revealed that compounds 4b and 6d showed good anticancer activities against KB, HepG2, and Lu cell lines (IC50 values ranging from 9 μM to 100 μM). Especially, compounds 4b and 6d exhibited up to 3-fold more potent than reference drugs erlotinib hydrochloride and AZT in term of anti-lung cancer activity.
Collapse
Affiliation(s)
- Le Nhat Thuy Giang
- Institute of Chemistry, 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
| | - Nguyen Thi Nga
- Graduate University of Science and Technology, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Dinh Thuy Van
- Graduate University of Science and Technology, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Dang Thi Tuyet Anh
- Institute of Chemistry, 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
| | - Hoang Thi Phuong
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Vu Quoc Trung
- Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, 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
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
14
|
Giang LNT, Tien DD, Anh DTT, Dung NT, Thuong NH, Tan LQ, Thanh NH, Anh LTT, Van Tuyen N, Van Kiem P. Synthesis and Cytotoxic Evaluation of Artemisinin Derivatives Containing an Aminopropanol Group. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300801] [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] [Indexed: 11/16/2022] Open
Abstract
Series of novel artemisinin derivatives were designed and synthesized in which the amino propanol group was bonded to the artemisinin nucleus through C-C linkage. Ten new compounds were thus successfully prepared and evaluated as cytotoxic agents, revealing an interesting anticancer activity in KB and HepG2 cancer cell lines.
Collapse
Affiliation(s)
- Le Nhat Thuy Giang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Doan Duy Tien
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Dang Thi Tuyet Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Tien Dung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ngo Hanh Thuong
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Luc Quang Tan
- Thai Nguyen University-Lao Cai Campus, Group 13, Binh Minh Ward, Lao Cai City, Lao Cai Province, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Thi Tu Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
15
|
Anh DTT, Cuc DT, Giang LNT, Hien NT, Doan VN, Thanh NH, Van Tuyen N, Van Kiem P. Design, Synthesis and Cytotoxic Evaluation of Novel Lupane Triterpenoid and Ursolic Acid Derived 2-Aminobenzamides. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300708] [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: 01/11/2023] Open
Abstract
Series of novel triterpenoid hybrids were designed and synthesized by introducing 2-aminobenzamide moiety at C28 position of triterpenoid derivatives. Thirteen new conjugates were thus successfully prepared and evaluated as cytotoxic agents, revealing an interesting anticancer activity in KB and HepG2 cancer cell lines.
Collapse
Affiliation(s)
- Dang Thi Tuyet Anh
- Institute of Chemistry, 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
| | - Dinh Thi Cuc
- Institute of Chemistry, 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
| | - Le Nhat Thuy Giang
- Institute of Chemistry, 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
| | - Nguyen Thi Hien
- Faculty of Environment, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Vu Ngoc Doan
- Le Quy Don Techical University, 236 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, 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
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
16
|
Giang LNT, Anh DTT, Phuong HT, Thanh NH, Van Tuyen N. Synthesis of novel artemisinin-triazole hybrids. VJCH 2018. [DOI: 10.1002/vjch.201800007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Le Nhat Thuy Giang
- Institute of Chemistry, Vietnam Academy of Science and Technology
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology
| | - Dang Thi Tuyet Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology
| | - Hoang Thi Phuong
- Institute of Chemistry, Vietnam Academy of Science and Technology
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology
| | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology
| |
Collapse
|
17
|
Anh DTT, Giang LNT, Hien NT, Cuc DT, Thanh NH, Ha NTT, Chinh PT, Van Tuyen N, Van Kiem P. Synthesis and Cytotoxic Evaluation of Betulin–Triazole–AZT Hybrids. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701201010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Betulin was converted to the corresponding alkyne-functionalized esters and amides and subsequently deployed as substrates for a ‘click’ chemistry-mediated coupling with 3'-azido-3'-deoxythydimine (AZT) to furnish a novel betulin–triazole–AZT hybrid compounds. Eleven new hybrids were thus successfully prepared and evaluated as cytotoxic agents, revealing an interesting anticancer activity in KB and HepG2 cancer cell lines.
Collapse
Affiliation(s)
- Dang Thi Tuyet Anh
- Institute of Chemistry, 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
| | - Le Nhat Thuy Giang
- Institute of Chemistry, 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
| | - Nguyen Thi Hien
- Institute of Chemistry, 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
| | - Dinh Thi Cuc
- Institute of Chemistry, 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
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Thu Ha
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Pham The Chinh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, 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
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAS, 18-Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
18
|
Anh DTT, Giang LNT, Hien NT, Cuc DT, Thanh NH, Tra NT, Phuong HT, Van Tuyen N, Van Kiem P. Synthesis and Cytotoxic Evaluation of Novel Ester Derivatives of Betulin with AZT, d4T, and 3TC. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200613] [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] [Indexed: 11/15/2022] Open
Abstract
Novel ester derivatives of betulin with AZT, d4T, and 3TC were synthesized and assessed for antitumor activities against the KB and HepG2 human cancer cell lines in vitro by MTT assay. Some derivatives displayed high anticancer properties, with IC50 values between 1 and 21 μM on the two cancer cell lines.
Collapse
Affiliation(s)
- Dang Thi Tuyet Anh
- Institute of Chemistry, 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
| | - Le Nhat Thuy Giang
- Institute of Chemistry, 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
| | - Nguyen Thi Hien
- Institute of Chemistry, 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
| | - Dinh Thi Cuc
- Institute of Chemistry, 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
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thanh Tra
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Phuong
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, 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
| | - Phan Van Kiem
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| |
Collapse
|
19
|
Abstract
A sand-casting technique for transtibial sockets was applied to 28 amputees in 2005. Although this meant an improvement in the quality of fitting as compared to historical reports with plaster of Paris casting, a total contact required three (two to five) stump socks. Continuing research leads the inventor, Dr Y. Wu, to replace the sand with micro polystyrene beads and simplify the equipment by eliminating the need for fluidization of silica sand by an air compressor during casting of the amputation stump. In a pilot series of 10 transtibial amputees, socket casting was performed with the new CIR casting technique and compared with the former sand-casting technique conducted by the same Category-I prosthetist. It was possible to obtain a good fit in eight out of 10 cases, which is an improvement from 19 out of 28 in the old series. Furthermore, there was a highly significant reduction in circumference measurements on the positive model with the new technique as compared to sand-casting.
Collapse
Affiliation(s)
- N H Thanh
- International Society for Prosthetics and Orthotics, Copenhagen, Denmark
| | | | | |
Collapse
|
20
|
Steen Jensen J, Nilsen R, Thanh NH, Saldana A, Hartz C. Clinical field testing of polyurethane feet for trans-tibial amputees in tropical low-income countries. Prosthet Orthot Int 2006; 30:182-94. [PMID: 16990229 DOI: 10.1080/03093640600794684] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In a prospective controlled study, 172 polyurethane feet of different designs were fitted to 155 amputees with trans-tibial prostheses. These were followed in respect of their durability. The amputee compliance was in general good, and 87% were satisfied with their device. After 18 months the failure rate of 20% with the CIREC spring-blade foot was significantly better than the others, but poorer craftsmanship, higher complaint rate and lower compliance rate cast some doubt on the results. The results with the conventional SACH foot constructions with polyurethane as filling and covering materials were so poor after 18 months that their use cannot be recommended in tropical areas of the developing world.
Collapse
|
21
|
Abstract
A sand-casting technique for trans-tibial sockets was applied to 28 amputees, and the prosthetic fit observed through transparent check sockets. The results were better than historical reports of fittings with plaster of Paris casting by qualified prosthetists. The fit was consistently and evenly larger than the stump, but total contact could be achieved by applying three (two to five) stump socks. This would normally be considered on the high side of a good fit.
Collapse
|
22
|
Yoshida H, Yoneyama T, Yoshii K, Thanh NH, Oanh PN, Lien HP, Miyamura T, Hagiwara A. Circulation of type 1 wild poliovirus in northern Vietnam during 1991-1994. Am J Trop Med Hyg 1996; 55:531-5. [PMID: 8940986 DOI: 10.4269/ajtmh.1996.55.531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
From 1991 to 1994, 143 polioviruses were isolated from patients with acute flaccid paralysis in northern Vietnam. Of these 143 isolates, 133 were type 1 and five of each were type 2 and type 3. These isolates were intratypically differentiated by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Of the 133 type 1 isolates, 113 were wild strains and only 20 isolates were of Sabin vaccine-like strains. These 113 isolates were divided into seven groups by PCR-RFLP patterns and were also classified into three genomic groups by nucleotide sequencing and phylogenetic analysis. One of the three genomic groups accounted for the majority (75) of these isolates. The isolates belonging to the predominant group were found during 1991-1993. The second group, which included 17 isolates, were detected only in 1993. These isolates had genome sequence similar to isolates in southern Vietnam in the same year. The third group of isolates were detected only in 1991 and were considered to be Mahoney-like wild strains. All isolates examined were different from those obtained in other countries. In 1994, however, no wild-type polioviruses were isolated in our study. These results reveal that three unique strains were circulating in northern Vietnam in recent years, and indicate that the incidence of poliomyelitis due to wild poliovirus is decreasing.
Collapse
Affiliation(s)
- H Yoshida
- Department of Virology II, National Institute of Health, Tokyo, Japan
| | | | | | | | | | | | | | | |
Collapse
|