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Van Quang H, Vuong NB, Trang BNL, Toan NL, Van Tong H. Association of UGT1A1 gene variants, expression levels, and enzyme concentrations with 2,3,7,8-TCDD exposure in individuals exposed to Agent Orange/Dioxin. Sci Rep 2024; 14:3315. [PMID: 38332122 PMCID: PMC10853243 DOI: 10.1038/s41598-024-54004-0] [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: 04/06/2023] [Accepted: 02/07/2024] [Indexed: 02/10/2024] Open
Abstract
Among the congener of dioxin, 2,3,7,8-TCDD is the most toxic, having a serious long-term impact on the environment and human health. UDP-glucuronosyltransferase 1A1 (UGT1A1) plays a crucial role in the detoxification and excretion of endogenous and exogenous lipophilic compounds, primarily in the liver and gastrointestinal tract. This study aimed to investigate the association of UGT1A1 gene polymorphisms, expression levels, and enzyme concentration with Agent Orange/Dioxin exposure. The study included 100 individuals exposed to Agent Orange/Dioxin nearby Da Nang and Bien Hoa airports in Vietnam and 100 healthy controls. UGT1A1 SNP rs10929303, rs1042640 and rs8330 were determined by Sanger sequencing, mRNA expression was quantified by RT-qPCR and plasma UGT1A1 concentrations were measured by ELISA. The results showed that UGT1A1 polymorphisms at SNPs rs10929303, rs1042640 and rs8330 were associated with Agent Orange/Dioxin exposure (OR = 0.55, P = 0.018; OR = 0.55, P = 0.018 and OR = 0.57, P = 0.026, respectively). UGT1A1 mRNA expression levels and enzyme concentration were significantly elevated in individuals exposed to Agent Orange/Dioxin compared to controls (P < 0.0001). Benchmark dose (BMD) analyses showed that chronic exposure to 2,3,7,8-TCDD contamination affects the UGT1A1 mRNA and protein levels. Furthermore, UGT1A1 polymorphisms affected gene expression and enzyme concentrations in individuals exposed to Agent Orange/Dioxin. In conclusion, UGT1A1 gene polymorphisms, UGT1A gene expression levels and UGT1A1 enzyme concentrations were associated with Agent Orange/Dioxin exposure. The metabolism of 2,3,7,8-TCDD may influence UGT1A gene expression and enzyme concentrations.
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Affiliation(s)
- Ha Van Quang
- Department of Haematology, Toxicology, Radiation, and Occupation, 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
- The Center of Toxicological and Radiological Training and Research, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Ba Vuong
- Department of Haematology, Toxicology, Radiation, and Occupation, 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Bui Ngoc Linh Trang
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam.
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam.
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Recker M, Fleischmann WA, Nghia TH, Truong NV, Nam LV, Duc Anh D, Song LH, The NT, Anh CX, Hoang NV, My Truong N, Toan NL, Kremsner PG, Velavan TP. Markers of prolonged hospitalisation in severe dengue. PLoS Negl Trop Dis 2024; 18:e0011922. [PMID: 38289968 PMCID: PMC10857710 DOI: 10.1371/journal.pntd.0011922] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 02/09/2024] [Accepted: 01/15/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Dengue is one of the most common diseases in the tropics and subtropics. Whilst mortality is a rare event when adequate supportive care can be provided, a large number of patients get hospitalised with dengue every year that places a heavy burden on local health systems. A better understanding of the support required at the time of hospitalisation is therefore of critical importance for healthcare planning, especially when resources are limited during major outbreaks. METHODS Here we performed a retrospective analysis of clinical data from over 1500 individuals hospitalised with dengue in Vietnam between 2017 and 2019. Using a broad panel of potential biomarkers, we sought to evaluate robust predictors of prolonged hospitalisation periods. RESULTS Our analyses revealed a lead-time bias, whereby early admission to hospital correlates with longer hospital stays - irrespective of disease severity. Importantly, taking into account the symptom duration prior to hospitalisation significantly affects observed associations between hospitalisation length and previously reported risk markers of prolonged stays, which themselves showed marked inter-annual variations. Once corrected for symptom duration, age, temperature at admission and elevated neutrophil-to-lymphocyte ratio were found predictive of longer hospitalisation periods. CONCLUSION This study demonstrates that the time since dengue symptom onset is one of the most significant predictors for the length of hospital stays, independent of the assigned severity score. Pre-hospital symptom durations need to be accounted for to evaluate clinically relevant biomarkers of dengue hospitalisation trajectories.
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Affiliation(s)
- Mario Recker
- Institute for Tropical Medicine, University Hospital Tübingen, Tübingen, Germany
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, United Kingdom
| | - Wim A. Fleischmann
- Institute for Tropical Medicine, University Hospital Tübingen, Tübingen, Germany
| | - Trinh Huu Nghia
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Van Truong
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Le Van Nam
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Duc Anh
- Institute for Tropical Medicine, University Hospital Tübingen, Tübingen, Germany
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
| | - Le Huu Song
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
- 108 Military Central Hospital, Hanoi, Vietnam
| | - Nguyen Trong The
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
- 108 Military Central Hospital, Hanoi, Vietnam
| | | | | | - Nhat My Truong
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
- 108 Military Central Hospital, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Peter G. Kremsner
- Institute for Tropical Medicine, University Hospital Tübingen, Tübingen, Germany
- Centre de Recherches Médicales de Lambaréné (CERMEL), Gabon
| | - Thirumalaisamy P. Velavan
- Institute for Tropical Medicine, University Hospital Tübingen, Tübingen, Germany
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
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Diep NT, Giang NT, Diu NTT, Nam NM, Khanh LV, Quang HV, Hang NT, Mao CV, Son HV, Hieu NL, Linh PT, Sklan EH, Toan NL, Tong HV. Complement receptor type 1 and 2 (CR1 and CR2) gene polymorphisms and plasma protein levels are associated with the Dengue disease severity. Sci Rep 2023; 13:17377. [PMID: 37833411 PMCID: PMC10575961 DOI: 10.1038/s41598-023-44512-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/09/2023] [Indexed: 10/15/2023] Open
Abstract
The pathological outcome of dengue disease results from complex interactions between dengue virus (DENV) and host genetics and immune response. Complement receptor types 1 and 2 (CR1 and CR2) mediate complement activation through the alternative pathway. This study investigated the possible association of genetic polymorphisms and plasma levels of CR1 and CR2 with dengue disease. A total of 267 dengue patients and 133 healthy controls were recruited for this study. CR1 and CR2 gene polymorphisms were analyzed by Sanger sequencing, while plasma CR1 and CR2 levels were measured by ELISA. The frequency of the CR1 minor allele rs6691117G was lower in dengue patients and those with severe dengue compared to healthy controls. Plasma CR1 and CR2 levels were decreased in dengue patients compared to healthy controls (P < 0.0001) and were associated with platelet counts. CR1 levels were lower in dengue patients with warning signs (DWS) compared to those without DWS, while CR2 levels were decreased according to the severity of the disease and after 5 days (T1) and 8 days (T2) of follow-up. CR2 levels were decreased in dengue patients positive for anti-DENV IgG and IgM and patients with bleeding and could discriminate DWS and SD from dengue fever patients (AUC = 0.66). In conclusion, this study revealed a reduction in CR2 levels in dengue patients and that the CR1 SNP rs6691117A/G is associated with the dengue severity. The correlation of CR2 levels with platelet counts suggests that CR2 could be an additional biomarker for the prognosis of severe dengue disease.
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Affiliation(s)
- Nguy Thi Diep
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Hanoi Nephrology Hospital, Hanoi, Vietnam
| | - Ngo Truong Giang
- Department of Biology and Medical Genetics, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Thi Thuy Diu
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Nguyen Minh Nam
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Le Van Khanh
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Ha Van Quang
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ho Van Son
- 175 Military Hospital, Ho Cho Minh City, Vietnam
| | - Nguyen Lan Hieu
- Hanoi Medical University Hospital, Hanoi Medical University, Hanoi, Vietnam
| | | | - Ella H Sklan
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel-Aviv University, 69978, Tel Aviv, Israel
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam.
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam.
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Cao LC, Martin V, Linh LTK, Giang TT, Chau NTM, Anh TNP, Nghia VX, The NT, My TN, Sy BT, Toan NL, Song LH, Bock CT, Velavan TP. High Hepatitis E Virus (HEV) Seroprevalence and No Evidence of HEV Viraemia in Vietnamese Blood Donors. Viruses 2023; 15:2075. [PMID: 37896852 PMCID: PMC10611202 DOI: 10.3390/v15102075] [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: 09/11/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
The prevalence of hepatitis E virus (HEV) in the Vietnamese population remains underestimated. The aim of the present study was to investigate the seroprevalence of HEV IgG/IgM antibodies and the presence of HEV RNA in blood donors as a part of epidemiological surveillance for transfusion-transmitted viruses. Serum samples from blood donors (n = 553) were analysed for markers of past (anti-HEV IgG) and recent/ongoing (anti-HEV IgM) HEV infections. In addition, all serum samples were subsequently tested for HEV RNA positivity. The overall prevalence of anti-HEV IgG was 26.8% (n = 148/553), while the seroprevalence of anti-HEV IgM was 0.5% (n = 3/553). Anti-HEV IgG seroprevalence in male and female donors was similar (27.1% and 25.5%, respectively). A higher risk of hepatitis E exposure was observed with increasing age. None of the blood donors were HEV RNA positive, and there was no evidence of HEV viraemia. Although the absence of HEV viraemia in blood donors from Northern Vietnam is encouraging, further epidemiological surveillance in other geographical regions is warranted to rule out transfusion-transmitted HEV.
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Affiliation(s)
- Le Chi Cao
- Institute of Tropical Medicine, University of Tübingen, 72074 Tübingen, Germany; (L.C.C.); (V.M.); (L.T.K.L.)
- Department of Parasitology, Hue University of Medicine and Pharmacy (HUMP), Hue University, Hue 49000, Vietnam; (T.T.G.); (N.T.M.C.); (T.N.P.A.)
| | - Vanessa Martin
- Institute of Tropical Medicine, University of Tübingen, 72074 Tübingen, Germany; (L.C.C.); (V.M.); (L.T.K.L.)
| | - Le Thi Kieu Linh
- Institute of Tropical Medicine, University of Tübingen, 72074 Tübingen, Germany; (L.C.C.); (V.M.); (L.T.K.L.)
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 10000, Vietnam; (N.T.T.); (T.N.M.); (B.T.S.); (L.H.S.)
| | - Tran Thi Giang
- Department of Parasitology, Hue University of Medicine and Pharmacy (HUMP), Hue University, Hue 49000, Vietnam; (T.T.G.); (N.T.M.C.); (T.N.P.A.)
| | - Ngo Thi Minh Chau
- Department of Parasitology, Hue University of Medicine and Pharmacy (HUMP), Hue University, Hue 49000, Vietnam; (T.T.G.); (N.T.M.C.); (T.N.P.A.)
| | - Ton Nu Phuong Anh
- Department of Parasitology, Hue University of Medicine and Pharmacy (HUMP), Hue University, Hue 49000, Vietnam; (T.T.G.); (N.T.M.C.); (T.N.P.A.)
| | - Vu Xuan Nghia
- 108 Military Central Hospital, Hanoi 10000, Vietnam;
| | - Nguyen Trong The
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 10000, Vietnam; (N.T.T.); (T.N.M.); (B.T.S.); (L.H.S.)
- 108 Military Central Hospital, Hanoi 10000, Vietnam;
| | - Truong Nhat My
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 10000, Vietnam; (N.T.T.); (T.N.M.); (B.T.S.); (L.H.S.)
| | - Bui Tien Sy
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 10000, Vietnam; (N.T.T.); (T.N.M.); (B.T.S.); (L.H.S.)
- 108 Military Central Hospital, Hanoi 10000, Vietnam;
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 10000, Vietnam;
| | - Le Huu Song
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 10000, Vietnam; (N.T.T.); (T.N.M.); (B.T.S.); (L.H.S.)
- 108 Military Central Hospital, Hanoi 10000, Vietnam;
| | - C.-Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, 72074 Tübingen, Germany; (L.C.C.); (V.M.); (L.T.K.L.)
- Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Department of Infectious Diseases, Robert Koch Institute, 13353 Berlin, Germany
| | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, University of Tübingen, 72074 Tübingen, Germany; (L.C.C.); (V.M.); (L.T.K.L.)
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 10000, Vietnam; (N.T.T.); (T.N.M.); (B.T.S.); (L.H.S.)
- Faculty of Medicine, Duy Tan University, Danang 550000, Vietnam
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Linh NT, Hang NT, Cuong BK, Linh DT, Phuong Linh NT, Nguyen-Van D, Dzung TN, Mao CV, Chung DT, Chinh LT, Hung NP, Tong HV, Toan NL. Establishment of cancer cell line originating from a patient with high-grade serous ovarian carcinoma. Future Sci OA 2023; 9:FSO875. [PMID: 37621847 PMCID: PMC10445588 DOI: 10.2144/fsoa-2023-0025] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/22/2023] [Indexed: 08/26/2023] Open
Abstract
Aim Ovarian cancer is a serious malignancy with high prevalence and mortality. Methods We isolated and characterized an ovarian high-grade serous cancer cell line (M4) from a tumor of a Vietnamese patient with ovarian carcinoma. Results The M4 cancer cell line showed good proliferation and stability in culture. Morphologically, the M4 cells showed similar characteristics to tumor cells such as a polyhedral shape, large irregular nuclei, high nuclear/cytoplasmic ratio, high nuclear density and expressing cancer markers like CA125, p53 and Ki67 markers. Conclusion We have successfully isolated and characterized the M4 cell line from a Vietnamese patient with ovarian carcinoma.
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Affiliation(s)
- Nguyen Thuy Linh
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Department of Pathology, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
- Department of Pathology, Hanoi Medical University Hanoi, Vietnam
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Bui Khac Cuong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Laboratory Animal Research Center, Vietnam Military Medical University, Hanoi, Vietnam
| | - Dang Thuy Linh
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nham Thi Phuong Linh
- Laboratory Animal Research Center, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Nguyen-Van
- Department of Pathophysiology & Immunology, Hanoi Medical University, Hanoi, Vietnam
| | - Tran Ngoc Dzung
- Department of Pathology, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Dang Thanh Chung
- Department of Pathology, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
| | - Le Tri Chinh
- Department of Gynaecology Surgery, Vietnam National Cancer Hospital, Hanoi, Vietnam
| | - Nguyen Phu Hung
- Faculty of Biotechnology, Thai Nguyen University of Sciences, Thai Nguyen, Vietnam
| | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
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Dzung PT, Trung NT, Van Khanh L, Chinh DD, Van De D, Van Tong H, Toan NL. Clinical association and diagnostic significance of miRNA-29a and miRNA-147b in type 2 diabetes mellitus. Int J Med Sci 2023; 20:1316-1325. [PMID: 37786444 PMCID: PMC10542027 DOI: 10.7150/ijms.84899] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/01/2023] [Indexed: 10/04/2023] Open
Abstract
Background: Micro RNAs (miRs) expression is involved in the pathogenesis of type 2 diabetes mellitus (T2DM). This study investigates the expression levels of plasma miR-29a, miR-146a, and miR-147b and their correlations with clinical parameters in patients with T2DM. Methods: 105 patients with T2DM who categorized either as newly diagnosed T2DM (n=52) or treated T2DM (n=53) and 93 healthy individuals were included in this study. The expression levels of miR-29a, miR-146a, and miR-147b were quantified by real-time PCR and analyzed for possible association with T2DM. Results: The expressions of miR-29a and miR-147b were significantly increased in T2DM patients compared with healthy controls (P<0.0001). The expression levels of miR-29a in newly diagnosed T2DM patients were higher than that in the group of treated T2DM (P=0.002). The expression of studied miRs was correlated with several clinical parameters such as blood glucose levels, HbA1C, microalbuminuria, C-peptide, triglyceride levels as well as the HOMA-β index. The expression levels of miR-29a and miR-147b show a potential diagnostic performance to discriminate newly diagnostic T2DM (AUCs=0.77 and 0.84, respectively) and beta-cell dysfunction (AUCs= 0.62 and 0.75, respectively). Conclusions: The plasma miR-29a and miR-147b expression levels in T2DM patients are significantly associated with T2DM while miR-146a shows poor evidence in relation to T2DM. miR-147b shows potential as a biomarker for the diagnosis of T2DM and pancreatic beta cell dysfunction.
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Affiliation(s)
- Phan The Dzung
- Endocrine Hospital, Nghe An, Vietnam
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngo Tat Trung
- Centre for Genetics Counsulation and Cancer Screening, 108 Military Central Hospital, Hanoi, Vietnam
| | - Le Van Khanh
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | | | - Doan Van De
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
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Vuong NB, Quang HV, Linh Trang BN, Duong DH, Toan NL, Tong HV. Association of PKLR gene copy number, expression levels and enzyme activity with 2,3,7,8-TCDD exposure in individuals exposed to Agent Orange/Dioxin in Vietnam. Chemosphere 2023; 329:138677. [PMID: 37060958 DOI: 10.1016/j.chemosphere.2023.138677] [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: 11/08/2022] [Revised: 03/27/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) is the most toxic congener of dioxin and has serious long-term effects on the environment and human health. Pyruvate Kinase L/R (PKLR) gene expression levels and gene variants are associated with pyruvate kinase enzyme deficiency, which has been identified as the cause of several diseases linked to dioxin exposure. In this study, we estimated PKLR gene copy number and gene expression levels using real-time quantitative PCR (RT-qPCR) assays, genotyped PKLR SNP rs3020781 by Sanger sequencing, and quantified plasma pyruvate kinase enzyme activity in 100 individuals exposed to Agent Orange/Dioxin near Bien Hoa and Da Nang airfields in Vietnam and 100 healthy controls. The means of PKLR copy numbers and PKLR gene expression levels were significantly higher, while pyruvate kinase enzyme activity was significantly decreased in Agent Orange/Dioxin-exposed individuals compared to healthy controls (P < 0.0001). Positive correlations of PKLR gene copy number and gene expression with 2,3,7,8-TCDD concentrations were observed (r = 0.2, P = 0.045 and r = 0.54, P < 0.0001, respectively). In contrast, pyruvate kinase enzyme activity was inversely correlated with 2,3,7,8-TCDD concentrations (r = -0.52, P < 0.0001). PKLR gene copy number and gene expression levels were also inversely correlated with pyruvate kinase enzyme activity. Additionally, PKLR SNP rs3020781 was found to be associated with 2,3,7,8-TCDD concentrations and PKLR gene expression. In conclusion, PKLR copy number, gene expression levels, and pyruvate kinase enzyme activity are associated with 2,3,7,8-TCDD exposure in individuals living in Agent Orange/Dioxin-contaminated areas.
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Affiliation(s)
- Nguyen Ba Vuong
- Department of Haematology, Toxicology, Radiation, and Occupation, 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Ha Van Quang
- The Center of Toxicological and Radiological Training and Research, Vietnam Military Medical University, Viet Nam
| | - Bui Ngoc Linh Trang
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Dao Hong Duong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Viet Nam; Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam.
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Nguyen HTT, Le-Quy V, Van Ho S, Thomsen JHD, Pontoppidan Stoico M, Van Tong H, Nguyen NL, Bygum Krarup H, Hong Nguyen S, Quoc Tran V, Linh Toan N, Tuan Dinh-Xuan A. Outcome prediction model and prognostic biomarkers for COVID-19 patients in Vietnam. ERJ Open Res 2023; 9:00481-2022. [PMID: 37041987 PMCID: PMC9885243 DOI: 10.1183/23120541.00481-2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/11/2022] [Indexed: 01/27/2023] Open
Abstract
IntroductionAccurate prognosis is important either after acute infection or during long-term follow-up of patients infected by SARS-CoV-2. This study aims to predict COVID-19 severity based on clinical and biological indicators, and to identify biomarkers for prognostic assessment.MethodsWe included 261 Vietnamese COVID-19 patients, who were classified into moderate and severe groups. Disease severity prediction based on biomarkers and clinical parameters was performed by applying machine learning and statistical methods using the combination of clinical and biological data.ResultsThe random forest model could predict with 97% accuracy the likelihood of COVID-19 patients who subsequently worsened to severe condition. The most important indicators were IL-6, Ferritin, and D-dimer. The model could still predict with 92% accuracy after removing IL-6 from analysis to generalize applicability of the model to hospitals with limited capacity for IL-6 testing. The five most effective indicators were CRP, D-dimer, IL-6, Ferritin, and dyspnoea. Two different sets of biomarkers (D-dimer, IL-6, and Ferritin; and CRP, D-dimer, and IL-6) are applicable for the assessment of disease severity and prognosis. The two biomarker sets were further tested through the machine learning algorithms random forest; and relatively validated on two Danish COVID-19 patient groups (n=32; and n=100). The results indicated various biomarker sets combined with clinical data can be used for detection of potential develop severe conditions.ConclusionThis study provided a simple and reliable model using two different sets of biomarkers to assess disease severity and predict clinical outcomes in COVID-19 patients in Vietnam.
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Thanh Duyen LT, Manh BV, Phuong Thao TT, Khanh LV, Linh Trang BN, Giang NT, Quang HV, Viet NT, Hang NT, Mao CV, Toan NL, Tong HV. Prognostic significance of the angiopoietin-2 for early prediction of septic shock in severe sepsis patients. Future Sci OA 2022; 8:FSO825. [PMID: 36874368 PMCID: PMC9979161 DOI: 10.2144/fsoa-2022-0077] [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: 11/04/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
Aim The current study investigated the plasma levels of angiopoietin-1/-2 and their association with clinical outcomes of sepsis. Methods Angiopoietin-1 and -2 levels were quantified in plasma from 105 patients with severe sepsis by ELISA. Results Angiopoietin-2 levels elevated according to the severity of sepsis progression. Angiopoietin-2 levels were correlated with mean arterial pressure and platelets counts, total bilirubin, creatinine, procalcitonin, lactate levels and SOFA score. Angiopoietin-2 levels accurately discriminated for sepsis with an AUC = 0.97 and septic shock from severe sepsis patients (AUC = 0.778). Conclusion Plasma angiopoietin-2 levels may serve as an additional biomarker for severe sepsis and septic shock.
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Affiliation(s)
- Luu Thi Thanh Duyen
- Surgical Intensive Care Unit, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam.,Surgical Intensive Care Unit, Viet Tiep Hospital, Hai Phong, Vietnam
| | - Bui Van Manh
- Surgical Intensive Care Unit, Military Hospital 103, Vietnam Military Medical University, Hanoi, Vietnam
| | - Tran Thi Phuong Thao
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Le Van Khanh
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Bui Ngoc Linh Trang
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngo Truong Giang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ha Van Quang
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Thanh Viet
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Biomedicine & Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
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10
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Pallerla SR, Hoan NX, Rachakonda S, Meyer CG, Van Tong H, Toan NL, Linh LTK, Giang DP, Kremsner PG, Bang MH, Song LH, Velavan TP. Custom gene expression panel for evaluation of potential molecular markers in hepatocellular carcinoma. BMC Med Genomics 2022; 15:235. [PMID: 36345011 PMCID: PMC9641913 DOI: 10.1186/s12920-022-01386-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 10/14/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related mortality worldwide. It is a highly heterogeneous disease with poor prognosis and limited treatment options, which highlights the need for reliable biomarkers. This study aims to explore molecular markers that allow stratification of HCC and may lead to better prognosis and treatment prediction. MATERIALS AND METHODS We studied 20 candidate genes (HCC hub genes, potential drug target genes, predominant somatic mutant genes) retrieved from literature and public databases with potential to be used as the molecular markers. We analysed expression of the genes by RT-qPCR in 30 HCC tumour and adjacent non-tumour paired samples from Vietnamese patients. Fold changes in expression were then determined using the 2-∆∆CT method, and unsupervised hierarchical clustering was generated using Cluster v3.0 software. RESULTS Clustering of expression data revealed two subtypes of tumours (proliferative and normal-like) and four clusters for genes. The expression profiles of the genes TOP2A, CDK1, BIRC5, GPC3, IGF2, and AFP were strongly correlated. Proliferative tumours were characterized by high expression of the c-MET, ARID1A, CTNNB1, RAF1, LGR5, and GLUL1 genes. TOP2A, CDK1, and BIRC5 HCC hub genes were highly expressed (> twofold) in 90% (27/30), 83% (25/30), and 83% (24/30) in the tissue samples, respectively. Among the drug target genes, high expression was observed in the GPC3, IGF2 and c-MET genes in 77% (23/30), 63% (19/30), and 37% (11/30), respectively. The somatic mutant Wnt/ß-catenin genes (CTNNB1, GLUL and LGR5) and TERT were highly expressed in 40% and 33% of HCCs, respectively. Among the HCC marker genes, a higher percentage of tumours showed GPC3 expression compared to AFP expression [73% (23/30) vs. 43% (13/30)]. CONCLUSION The custom panel and molecular markers from this study may be useful for diagnosis, prognosis, biomarker-guided clinical trial design, and prediction of treatment outcomes.
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Affiliation(s)
- Srinivas Reddy Pallerla
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Wilhelmstr 27, 72074, Tübingen, Germany.
| | - Nghiem Xuan Hoan
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.
- Department of Molecular Biology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam.
| | - Sivaramakrishna Rachakonda
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Wilhelmstr 27, 72074, Tübingen, Germany
| | - Christian G Meyer
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Wilhelmstr 27, 72074, Tübingen, Germany
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | | | | | - Le Thi Kieu Linh
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Wilhelmstr 27, 72074, Tübingen, Germany
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Dao Phuong Giang
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
- Department of Molecular Biology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Peter G Kremsner
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Wilhelmstr 27, 72074, Tübingen, Germany
- Centre de Recherches Medicales de Lambarene, Lambaréné, Gabon
| | - Mai Hong Bang
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
- Faculty of Gastroenterology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Le Huu Song
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
- Department of Molecular Biology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Universität Tübingen, Wilhelmstr 27, 72074, Tübingen, Germany
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
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11
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Hoan NX, Pallerla SR, Huy PX, Krämer H, My TN, Tung TT, Hoan PQ, Toan NL, Song LH, Velavan TP. SARS-CoV-2 viral dynamics of the first 1000 sequences from Vietnam and neighbouring ASEAN countries. IJID Reg 2022; 2:175-179. [PMID: 35721434 PMCID: PMC8770528 DOI: 10.1016/j.ijregi.2022.01.008] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 11/21/2022]
Abstract
The first 1000 SARS-CoV-2 genome sequences from Vietnam were analyzed. Delta was the major VOC in nine ASEAN countries. There are limited sequencing capacities in Laos, Brunei, and Myanmar. Strong epidemiological patterns of virus spread were evident after the introduction of VOCs in ASEAN.
Objective The regional distribution and transmissibility of existing COVID-19 variants of concern (VOC) has led to concerns about increasing transmission, given the ability of VOCs to evade immunity as breakthrough infections become more prevalent. Methods SARS-CoV-2 genomes (n = 277) were sequenced and analysed alongside all available genomes from Vietnam and ASEAN countries to understand the phylodynamics. The observed lineages were assigned using Pangolin nomenclature, and spread patterns were investigated. Results Between January and November 8, 2021, VOCs, including alpha (B.1.1.7), beta (B.1.351), gamma (P.1), and delta (B.1.617.2), were observed across the ASEAN countries. While alpha and delta were the major VOCs in nine ASEAN countries, delta was predominant. The alpha VOC was first reported by Singapore, beta by Malaysia, gamma by the Philippines, and delta by Singapore. Of the first 1000 genomes analysed from Vietnam, alpha and delta were the most represented, with delta being the dominant VOC from May 2021. The delta variant was introduced in early January 2021, and formed a large cluster within the representative genomes. Conclusion Spatial and temporal monitoring of SARS-CoV-2 variants is critical to the understanding of viral phylodynamics, and will provide useful guidance to policy makers for infection prevention and control.
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Affiliation(s)
- Nghiem Xuan Hoan
- Department of Molecular Biology, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Srinivas Reddy Pallerla
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Pham Xuan Huy
- Vietnamese Military Medical University, Hanoi, Vietnam
| | - Hannah Krämer
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Truong Nhat My
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Tran Thanh Tung
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Phan Quoc Hoan
- Department of Molecular Biology, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | | | - Le Huu Song
- Department of Molecular Biology, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
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12
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Huy PX, Chung DT, Linh DT, Hang NT, Rachakonda S, Pallerla SR, Linh LTK, Tong HV, Dung LM, Mao CV, Wedemeyer H, Bock CT, Kremsner PG, Song LH, Sy BT, Toan NL, Velavan TP. Low Prevalence of HEV Infection and No Associated Risk of HEV Transmission from Mother to Child among Pregnant Women in Vietnam. Pathogens 2021; 10:pathogens10101340. [PMID: 34684289 PMCID: PMC8539026 DOI: 10.3390/pathogens10101340] [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: 09/26/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022] Open
Abstract
Infections with HEV in low- and middle-income countries (LMICs) are associated with increased rates of preterm birth, miscarriage, and stillbirth. The aim of the present study was to investigate HEV infections in pregnant women and the possibility of mother-to-child transmission, and associated outcomes. A total of 183 pregnant women in their third trimester were recruited and followed until delivery. Anti-HEV IgG and IgM were determined via enzyme-linked immunosorbent assay (ELISA), and HEV nucleic acids were detected in stool and cord blood samples. HEV genotypes were identified by Sanger sequencing, and phylogenetic analyses were performed. Mother-to-child transmission and associated adverse outcomes were not observed. Only 2% of patients (n = 4/183) tested positive for anti-HEV IgM, and 8% (n = 14/183) tested positive for anti-HEV IgG antibodies. Cord blood (n = 150) analysis showed that there was no IgM detected, while 4% (n = 6/150) tested positive for anti-HEV IgG, which was consistent with mothers testing positive for anti-HEV IgG. Nucleic acid tests for HEV RNA yielded 2% (n = 4/183) from the serum and stool of pregnant women, and none from cord blood. The HEV isolates belonged to the genotype HEV-3a, with 99% homology with humans and 96% with pigs. No association was found between the risk of HEV infection and pregnancy outcomes or HEV transmission from mother to child. HEV-3 infections of zoonotic origin in pregnancy might have eventually resolved without complications.
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Affiliation(s)
- Pham Xuan Huy
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
| | - Dang Thanh Chung
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
| | - Dang Thuy Linh
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
| | - Sivaramakrishna Rachakonda
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, 72074 Tübingen, Germany; (S.R.); (S.R.P.); (L.T.K.L.); (P.G.K.)
| | - Srinivas Reddy Pallerla
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, 72074 Tübingen, Germany; (S.R.); (S.R.P.); (L.T.K.L.); (P.G.K.)
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 100000, Vietnam; (L.H.S.); (B.T.S.)
| | - Le Thi Kieu Linh
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, 72074 Tübingen, Germany; (S.R.); (S.R.P.); (L.T.K.L.); (P.G.K.)
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 100000, Vietnam; (L.H.S.); (B.T.S.)
| | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
| | - Le Minh Dung
- Tra Vinh Obstetrics and Pediatrics Hospital, Tra Vinh 940000, Vietnam;
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30625 Hannover, Germany;
- German Center for Infection Research, Partner Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - C-Thomas Bock
- Department of Infectious Diseases, Division of Viral Gastroenteritis and Hepatitis Pathogens and Enteroviruses, Robert Koch Institute, 13353 Berlin, Germany;
| | - Peter G. Kremsner
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, 72074 Tübingen, Germany; (S.R.); (S.R.P.); (L.T.K.L.); (P.G.K.)
- Centre de Recherches Medicales de Lambarene, Lambaréné B.P. 242, Gabon
| | - Le Huu Song
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 100000, Vietnam; (L.H.S.); (B.T.S.)
- 108 Military Central Hospital, Hanoi 100000, Vietnam
| | - Bui Tien Sy
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 100000, Vietnam; (L.H.S.); (B.T.S.)
- 108 Military Central Hospital, Hanoi 100000, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi 100000, Vietnam; (P.X.H.); (D.T.C.); (D.T.L.); (N.T.H.); (H.V.T.); (C.V.M.)
- Correspondence: (N.L.T.); (T.P.V.); Tel.: +84-979-166-868 (N.L.T.); +49-7071 29-85981 (T.P.V.)
| | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, 72074 Tübingen, Germany; (S.R.); (S.R.P.); (L.T.K.L.); (P.G.K.)
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi 100000, Vietnam; (L.H.S.); (B.T.S.)
- Correspondence: (N.L.T.); (T.P.V.); Tel.: +84-979-166-868 (N.L.T.); +49-7071 29-85981 (T.P.V.)
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13
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Nguyen MLT, Toan NL, Bozko M, Bui KC, Bozko P. Cholangiocarcinoma Therapeutics: An Update. Curr Cancer Drug Targets 2021; 21:457-475. [PMID: 33563168 DOI: 10.2174/1568009621666210204152028] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/12/2020] [Accepted: 11/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cholangiocarcinoma (CCA) is the second most common hepatobiliary cancer and associated with a poor prognosis. Only one-third of CCA cases are diagnosed at operable stages. However, a high rate of relapse has been observed postoperatively. Besides screening for operable individuals, efficacious therapeutic for recurrent and advanced CCA is urgently needed. The treatment outcome of available therapeutics is important to clarify clinical indication and facilitate the development of treatment strategies. OBJECTIVE This review aims to compare the treatment outcome of different therapeutics based on both overall survival and progression-free survival. METHODS Over one hundred peer-reviewed articles were examined. We compared the treatment outcome between different treatment methods, including tumor resection with or without postoperative systematic therapy, chemotherapies including FOFLOX, and targeted therapies, such as IDH1, K-RAS, and FGFR inhibitors. Notably, the scientific basis and outcome of available treatment methods were compared with the standard first-line therapy. RESULTS CCAs at early stages should firstly undergo tumor resection surgery, followed by postoperative treatment with Capecitabine. Chemotherapy can be considered as a preoperative option for unresectable CCAs. Inoperable CCAs with genetic aberrances like FGFR alterations, IDH1, and KRAS mutations should be considered with targeted therapies. Fluoropyrimidine prodrug (S-1)/Gemcitabine/Cisplatin and nab-Paclitaxel/Gemcitabine/Cisplatin show favorable outcome which hints at the triplet regimen to be superior to Gemcitabine/Cisplatin on CCA. The triplet chemotherapeutic should be tested further compared to Gemcitabine/Cisplatin among CCAs without genetic alterations. Gemcitabine plus S-1 was recently suggested as the convenient and equivalent standard first-line for advanced/recurrent biliary tract cancer. CONCLUSION This review provides a comparative outcome between novel targeted therapies and currently available therapeutics.
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Affiliation(s)
- Mai Ly Thi Nguyen
- Department of Internal Medicine I, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Maria Bozko
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Poland
| | - Khac Cuong Bui
- Department of Internal Medicine I, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Przemyslaw Bozko
- Department of Internal Medicine I, Universitätsklinikum Tübingen, Tübingen, Germany
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14
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Thanh Chung D, Thi Long H, Van Tong H, Thu Hang N, Thu Huong N, Khac Cuong B, Van Tran P, Thuy Linh N, Dang Hien N, Van Mao C, Duc Thuan N, Linh Toan N, Thanh Tung N, Anh Son H. Preclinical toxicological evaluation of measles virus vaccine strain in non-human primates: A two-month intravenous study. Biomed Res Ther 2021. [DOI: 10.15419/bmrat.v8i6.676] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Introduction: Based on its ability to kill tumor cells, the vaccine strain of the measles virus is used for oncolytic virotherapy. However, the dose required for cancer therapy is much higher than that used for vaccination. Therefore, this study was conducted to evaluate the preclinical toxicology of the vaccine strain of measles virus in monkeys.
Methods: 16 healthy Macaca mulata monkeys were randomly divided into four groups, of which one was a control. A preclinical safety evaluation of the vaccine strain of the measles virus was performed, and the three experimental groups were intravenously injected with the strain at doses of 105 TCID50, 106 TCID50 and 107 TCID50 respectively.
Results: There were no significant abnormalities in the physical, clinical, haematological, and biochemical parameters following the intravenous injection with measles vaccine at doses of 105 TCID50, 106 TCID50 and 107 TCID50. The vaccine strain of measles virus remained in the plasma until the 30th day and disappeared on the 60th, and it did not persist in the tissues on days 30 and 60 post injection. Measles IgG antibody was negative on days 0, 1, 3, and 8 and was positive on days 15, 30, and 60 post administration of the measles virus. The histopathology of target organs was not affected in all groups on days 30 and 60 post injection.
Conclusions: The systematic preclinical safety data of the present study confirms the safety of two months of concentrated measles vaccine administration in the Macaca mulata monkey for clinical trials.
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15
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Viet NT, Van Du V, Thuan ND, Van Tong H, Toan NL, Van Mao C, Van Tuan N, Pallerla SR, Nurjadi D, Velavan TP, Son HA. Maternal Vaginal Colonization and Extended-Spectrum Beta-Lactamase-Producing Bacteria in Vietnamese Pregnant Women. Antibiotics (Basel) 2021; 10:antibiotics10050572. [PMID: 34067975 PMCID: PMC8152252 DOI: 10.3390/antibiotics10050572] [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] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/27/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023] Open
Abstract
Extended-spectrum β-lactamase-producing Enterobacterales (ESBL-E) resistance to commonly prescribed drugs is increasing in Vietnam. During pregnancy, ESBL-E may predispose women to reproductive tract infections and increases the risk for neonatal morbidity. Vaginal colonization and infections by Escherichia coli and Klebsiella pneumoniae are seldom studied in Vietnam. In this study, we investigated ESBL-producing Enterobacterales in the birth canal of pregnant women. Between 2016 and 2020, vaginal swabs were collected from 3104 pregnant women (mean gestational age of 31 weeks) and inoculated onto MacConkey agar plates. Colonies were subjected to direct identification and antimicrobial susceptibility testing using the VITEK®-2 automated compact system and disk diffusion. ESBL production was determined phenotypically. E. coli, Klebsiella species were identified in 30% (918/3104) of the vaginal swabs, with E. coli being the most common (73%; 667/918). ESBL-production was detected in 47% (432/918) of Enterobacterales, with frequent multidrug-resistant phenotype. The overall prevalence of carbapenem resistance was low (8%). Over 20% of Klebsiella spp. were carbapenem-resistant. Pregnant women had a high prevalence of colonization and may transmit ESBL-E to neonates at birth, an important risk factor to be considered. The high rate of ESBL-producers and carbapenem resistance in Enterobacterales in Vietnam emphasizes the need for consequent surveillance and access to molecular typing.
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Affiliation(s)
- Nguyen Thanh Viet
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 121-08, Vietnam; (N.T.V.); (H.V.T.)
| | - Vu Van Du
- National Hospital of Obstetrics and Gynecology, Hanoi 110-02, Vietnam;
| | - Nghiem Duc Thuan
- ENT Department, 103 Military Hospital, Vietnamese Military Medical University, Hanoi 121-08, Vietnam;
| | - Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 121-08, Vietnam; (N.T.V.); (H.V.T.)
| | - Nguyen Linh Toan
- Department Post-Graduate Training Management, Vietnamese Military Medical University, Hanoi 121-08, Vietnam;
- Department of Pathophysiology, Vietnamese Military Medical University, Hanoi 121-08, Vietnam;
| | - Can Van Mao
- Department of Pathophysiology, Vietnamese Military Medical University, Hanoi 121-08, Vietnam;
| | - Nguyen Van Tuan
- Department of Rehabilitation, Vietnamese Military Medical University, Hanoi 121-08, Vietnam;
| | - Srinivas Reddy Pallerla
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074 Tübingen, Germany
| | - Dennis Nurjadi
- Department of Infectious Diseases, Medical Microbiology and Hygiene, University Hospital Heidelberg, Im Neuenheimer Feld 324, 69120 Heidelberg, Germany;
| | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074 Tübingen, Germany
- Vietnamese-German Centre for Medical Research (VG-CARE), Hanoi 116-10, Vietnam
- Correspondence: (T.P.V.); (H.A.S.); Tel.: +49-7071-2985981 (T.P.V.); +84-978-437-229 (H.A.S.)
| | - Ho Anh Son
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi 121-08, Vietnam; (N.T.V.); (H.V.T.)
- Correspondence: (T.P.V.); (H.A.S.); Tel.: +49-7071-2985981 (T.P.V.); +84-978-437-229 (H.A.S.)
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16
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Hoan NX, Hoechel M, Tomazatos A, Anh CX, Pallerla SR, Linh LTK, Binh MT, Sy BT, Toan NL, Wedemeyer H, Bock CT, Kremsner PG, Meyer CG, Song LH, Velavan TP. Predominance of HBV Genotype B and HDV Genotype 1 in Vietnamese Patients with Chronic Hepatitis. Viruses 2021; 13:v13020346. [PMID: 33671832 PMCID: PMC7926858 DOI: 10.3390/v13020346] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/04/2021] [Accepted: 02/18/2021] [Indexed: 12/15/2022] Open
Abstract
Hepatitis delta virus (HDV) coinfection will additionally aggravate the hepatitis B virus (HBV) burden in the coming decades, with an increase in HBV-related liver diseases. Between 2018 and 2019, a total of 205 HBV patients clinically characterized as chronic hepatitis B (CHB; n = 115), liver cirrhosis (LC; n = 21), and hepatocellular carcinoma (HCC; n = 69) were recruited. HBV surface antigen (HBsAg), antibodies against surface antigens (anti-HBs), and core antigens (anti-HBc) were determined by ELISA. The presence of hepatitis B viral DNA and hepatitis delta RNA was determined. Distinct HBV and HDV genotypes were phylogenetically reconstructed and vaccine escape mutations in the “a” determinant region of HBV were elucidated. All HBV patients were HbsAg positive, with 99% (n = 204) and 7% (n = 15) of them being positive for anti-HBc and anti-HBs, respectively. Anti-HBs positivity was higher among HCC (15%; n = 9) compared to CHB patients. The HBV-B genotype was predominant (65%; n = 134), followed by HBV-C (31%; n = 64), HBV-D, and HBV-G (3%; n = 7). HCC was observed frequently among young individuals with HBV-C genotypes. A low frequency (2%; n = 4) of vaccine escape mutations was observed. HBV-HDV coinfection was observed in 16% (n = 33) of patients with the predominant occurrence of the HDV-1 genotype. A significant association of genotypes with alanine aminotransferase (ALT) and aspartate aminotransferase (AST) enzyme levels was observed in HBV monoinfections. The prevalence of the HDV-1 genotype is high in Vietnam. No correlation was observed between HDV-HBV coinfections and disease progression when compared to HBV monoinfections.
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Mirjam Hoechel
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
| | - Alexandru Tomazatos
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
| | - Chu Xuan Anh
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Srinivas Reddy Pallerla
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
| | - Le Thi Kieu Linh
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
| | - Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Bui Tien Sy
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam;
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, 30623 Hannover, Germany;
| | - C.-Thomas Bock
- Department of Infectious Diseases, Robert Koch Institute, 13353 Berlin, Germany;
| | - Peter G. Kremsner
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
- Centre de Recherches Medicales de Lambarene, Lambaréné, Gabon
| | - Christian G. Meyer
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
| | - Le Huu Song
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, University of Tübingen, 72076 Tübingen, Germany; (N.X.H.); (M.H.); (A.T.); (S.R.P.); (L.T.K.L.); (M.T.B.); (P.G.K.); (C.G.M.)
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam; (C.X.A.); (B.T.S.); (L.H.S.)
- Correspondence: ; Tel.: +49-7071-2985981
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17
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Van Long B, Allen G, Brauny M, Linh LTK, Pallerla SR, Huyen TTT, Van Tong H, Toan NL, Quyet D, Son HA, Velavan TP. Molecular surveillance and temporal monitoring of malaria parasites in focal Vietnamese provinces. Malar J 2020; 19:458. [PMID: 33384023 PMCID: PMC7775626 DOI: 10.1186/s12936-020-03561-6] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND While the World Health Organization (WHO) Southeast Asia region has the second highest incidence of malaria worldwide, malaria in Vietnam is focal to few provinces, where delayed parasite clearance to anti-malarial drugs is documented. This study aims to understand Plasmodium species distribution and the genetic diversity of msp1 and msp2 of parasite populations using molecular tools. METHODS A total of 222 clinical isolates from individuals with uncomplicated malaria were subjected to Plasmodium species identification by nested real-time PCR. 166 isolates positive for Plasmodium falciparum mono infections were further genotyped for msp1 (MAD20, K1, and RO33), and msp2 allelic families (3D7 and FC27). Amplicons were resolved through capillary electrophoresis in the QIAxcel Advanced system. RESULTS Mono-infections were high and with 75% P. falciparum, 14% Plasmodium vivax and 9% P. falciparum/P. vivax co-infections, with less than 1% Plasmodium malariae identified. For msp1, MAD20 was the most prevalent (99%), followed by K1 (46%) allelic family, with no sample testing positive for RO33 (0%). For msp2, 3D7 allelic family was predominant (97%), followed by FC27 (10%). The multiplicity of infection of msp1 and msp2 was 2.6 and 1.1, respectively, and the mean overall multiplicity of infection was 3.7, with the total number of alleles ranging from 1 to 7. CONCLUSIONS Given the increasing importance of antimalarial drugs in the region, the genetic diversity of P. falciparum msp1 and msp2 should be regularly monitored with respect to treatment outcomes and/or efficacy studies in regions, where there are ongoing changes in the malaria epidemiology.
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Affiliation(s)
- Bui Van Long
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany
| | - Genevieve Allen
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany
| | - Melanie Brauny
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany
| | - Le Thi Kieu Linh
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany.,Vietnamese-German Centre for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Srinivas Reddy Pallerla
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany
| | - Tran Thi Thu Huyen
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Quyet
- Vietnam Military Medical University, Hanoi, Vietnam
| | - Ho Anh Son
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam.
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany. .,Vietnamese-German Centre for Medical Research (VG-CARE), Hanoi, Vietnam.
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18
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Giang NT, van Tong H, Quyet D, Hoan NX, Nghia TH, Nam NM, Hung HV, Anh DT, Van Mao C, Son HA, Meyer CG, Velavan TP, Toan NL. Complement protein levels and MBL2 polymorphisms are associated with dengue and disease severity. Sci Rep 2020; 10:14923. [PMID: 32913345 PMCID: PMC7484760 DOI: 10.1038/s41598-020-71947-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 01/06/2020] [Accepted: 08/17/2020] [Indexed: 02/07/2023] Open
Abstract
The complement system may be crucial during dengue virus infection and progression to severe dengue. This study investigates the role of MBL2 genetic variants and levels of MBL in serum and complement proteins in Vietnamese dengue patients. MBL2 genotypes (- 550L/H, MBL2 codon 54), MBL2 diplotypes (XA/XO, YA/XO) and MBL2 haplotypes (LXPB, HXPA, XO) were associated with dengue in the study population. The levels of complement factors C2, C5, and C5a were higher in dengue and dengue with warning signs (DWS) patients compared to those in healthy controls, while factor D levels were decreased in dengue and DWS patients compared to the levels determined in healthy controls. C2 and C5a levels were associated with the levels of AST and ALT and with WBC counts. C9 levels were negatively correlated with ALT levels and WBC counts, and factor D levels were associated with AST and ALT levels and with platelet counts. In conclusions, MBL2 polymorphisms are associated with dengue in the Vietnamese study population. The levels of the complement proteins C2, C4b, C5, C5a, C9, factor D and factor I are modulated in dengue patients during the clinical course of dengue.
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Affiliation(s)
- Ngo Truong Giang
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam.,Department of Biology and Medical Genetics, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang van Tong
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam. .,Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam.
| | - Do Quyet
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Nghiem Xuan Hoan
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam
| | - Trinh Huu Nghia
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Minh Nam
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Vu Hung
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Tuan Anh
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Ho Anh Son
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam.,Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Christian G Meyer
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Duy Tan University, Faculty of Medicine, Da Nang, Vietnam
| | - Thirumalaisamy P Velavan
- Vietnamese-German Center for Medical Research, VG-CARE, Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Duy Tan University, Faculty of Medicine, Da Nang, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam.
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19
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Lytton SD, Nematollahi G, van Tong H, Xuan Anh C, Hung HV, Hoan NX, Diez G, Schumacher T, Landt O, Melchior W, Fuchs D, Toan NL, Velavan TP, Song LH. Predominant secondary dengue infection among Vietnamese adults mostly without warning signs and severe disease. Int J Infect Dis 2020; 100:316-323. [PMID: 32896661 DOI: 10.1016/j.ijid.2020.08.082] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/27/2020] [Accepted: 08/30/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The morbidity in dengue fever is dependent on the dengue virus (DENV) serotypes, the patient age, predisposing immunogenic markers and the frequency of primary and secondary infections. This study aims to distinguish acute primary from secondary dengue infections of Vietnamese adults and to assess the association of viremia and anti-dengue immunoglobulin levels with clinical outcomes. STUDY DESIGN Viral RNA, dengue serotypes and levels of anti-dengue IgM and IgG of hospitalized adult cases were determined in EDTA-plasma samples prospectively collected during three consecutive years of dengue infection in Hanoi. Patients admitted to hospital within 7 days of their 1st reported fever were included. Primary infections were anti-dengue IgG enzyme-linked immunosorbent assay (ELISA) negative on both day of hospital entry (day 0) and day two or three of hospitalization (day 2 or 3) with a positive anti-dengue IgM on either day 0 or day 2 or 3 hospitalization. The secondary infections were anti-dengue IgG ELISA positive on both day 0 and day 2 or 3 with positive anti-dengue IgM ELISA on either day 0 or day 2 or 3. RESULTS The hospitalized dengue fever cases between October 2016 and March 2019 were predominantly secondary infections (74%, 68% and 77%, respectively) with DENV-1 (60% and 65%) and DENV-2 (22% and 26%) serotypes determined in the latter two years. The viremia in primary infection was significantly higher than that in secondary infection (P < 0.01) and positively correlated with the days of hospital stay. In secondary infections, platelet counts were lower than in primary infections (P = 0.04) and IgG levels in secondary infection negatively correlated with platelet counts (Spearman's r = -0.22, P < 0.01). CONCLUSIONS Our results indicate high rates of secondary infection with DENV1 and DENV2 serotypes. Anti-dengue immunoglobulins negatively correlate with hospital stay and platelet counts with few warning signs or severe disease. Further investigations of specific antibodies in adults which predict auto-inflammatory activity after the recovery from dengue infection are warranted.
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Affiliation(s)
| | | | - Hoang van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam.
| | | | - Hoang Vu Hung
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam.
| | | | - Gerold Diez
- Institut Virion\Serion GmbH, 97076 Würzburg, Germany.
| | | | - Offert Landt
- TIB MOLBIOL Syntheselabor GmbH D-12103 Berlin Germany.
| | | | - Dietmar Fuchs
- Division of Biological Chemistry, Innsbruck Medical University, Innsbruck, Austria.
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam.
| | - Thirumalaisamy P Velavan
- Vietnamese-GermanCenter for Medical Research, VG-CARE, Hanoi, Viet Nam; Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
| | - Le Huu Song
- 108 Military Central Hospital, Hanoi, Viet Nam; Vietnamese-GermanCenter for Medical Research, VG-CARE, Hanoi, Viet Nam.
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20
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Tuyen TT, Viet NT, Hang NT, Giang NT, Anh DD, Anh DT, Hung HV, Quyet D, Toan NL, Cam TD, Van Tong H. Proinflammatory Cytokines Are Modulated in Vietnamese Patients with Dengue Fever. Viral Immunol 2020; 33:514-520. [DOI: 10.1089/vim.2020.0023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
- Tran Thi Tuyen
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Thai Binh Medical College, Thai Binh, Vietnam
| | - Nguyen Thanh Viet
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Ha Dong Medical College, Hanoi, Vietnam
| | - Ngo Truong Giang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Department of Biology and Medical Genetics, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Duc Anh
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Tuan Anh
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Vu Hung
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Quyet
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | | | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
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21
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Giang NT, Tong HV, Nghia TH, Hung HV, Anh DT, Nam LV, Mao CV, Giang NT, Thanh LD, Son HA, Velavan TP, Do Q, Toan NL. Association of FCN2 polymorphisms and Ficolin-2 levels with dengue fever in Vietnamese patients. Int J Infect Dis 2020; 95:253-261. [PMID: 32088336 DOI: 10.1016/j.ijid.2020.02.029] [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] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND AND OBJECTIVE The human ficolin-2, encoded by FCN2, recognizes pathogen-associated acetylated residues on their cell surfaces and activates the lectin complement cascade. This study aimed to investigate the contribution of human ficolin-2 and the functional FCN2 genetic variants in dengue virus (DENV) infection and in clinical progression. METHODS FCN2 genetic polymorphisms in the promoter, intron 7 and exon 8 were genotyped in 279 patients with dengue fever and in 200 healthy controls by direct Sanger sequencing. The ficolin-2 levels were measured in serum samples by ELISA and correlated with clinical data. RESULTS The frequencies of +6031GG, +6220GG and +6424TT genotypes were significantly higher in dengue patients compared to healthy controls indicating an increased risk of dengue fever. The SNPs rs11103563 (+6031A/G), rs7872508 (+6220 T/G), and rs7851696 (+6424G/T) significantly regulated ficolin-2 levels in dengue patients (P < 0.0001). Ficolin-2 levels were increased in patients with dengue and Dengue with Warning Signs (DWS) compared to healthy controls (P < 0.0001 and P = 0.038, respectively). Ficolin-2 levels were significantly increased after 10-14 days of admission in both dengue and DWS patients and then slightly decreased after three weeks of discharge, indicating that ficolin-2 levels were modulated during the progression of dengue fever. In addition, ficolin-2 levels were negatively correlated with AST levels and positively correlated with platelet counts. CONCLUSIONS FCN2 polymorphisms are associated with dengue fever in the Vietnamese population. Ficolin-2 levels are modulated during the progression of dengue fever and correlated with clinical parameters and thus may play a possible role in the pathogenesis of DENV infection.
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Affiliation(s)
- Ngo Truong Giang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Department of Biology and Medical Genetics, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Viet Nam.
| | - Trinh Huu Nghia
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Hoang Vu Hung
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Do Tuan Anh
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Le Van Nam
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam
| | | | | | - Ho Anh Son
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, Hanoi, Viet Nam; Duy Tan University, Da Nang, Viet Nam
| | - Quyet Do
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam.
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22
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Trung NT, Hoan NX, Trung PQ, Binh MT, Van Tong H, Toan NL, Bang MH, Song LH. Clinical significance of combined circulating TERT promoter mutations and miR-122 expression for screening HBV-related hepatocellular carcinoma. Sci Rep 2020; 10:8181. [PMID: 32424223 PMCID: PMC7234991 DOI: 10.1038/s41598-020-65213-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 01/20/2020] [Accepted: 04/17/2020] [Indexed: 02/07/2023] Open
Abstract
Telomerase reverse-transcriptase (TERT) gene promoter mutations in circulating cell-free DNA (cfDNA) as well as the levels of circulating microRNA-122 (miR-122) have been reported as potential noninvasive biomarkers for several. This study evaluates the diagnostic performance of potent biomarker-based panels composing of serological AFP, miR-122 and circulating TERT promoter mutations for screening HBV-related HCC. TERT promoter mutations (C228T and C250T) and miR-122 expression were assessed in the plasma samples from 249 patients with HBV-related liver diseases by nested PCR and qRT-PCR assays, respectively. The diagnostic values of TERT promoter mutations, miR-122 expression and biomarker-based panels were assessed by computation of the area under the curve (AUC). Nested-PCR assays were optimized to detect C228T and C250T mutations in TERT promoter with detection limit of 1%. The common hotspot C228T was observed in 22 HCC cases. The triple combinatory panel (AFP@TERT@miR-122) acquired the best diagnostic value to distinguish HCC from CHB (AUC = 0.98), LC (AUC = 0.88) or non-HCC (LC + CHB, AUC = 0.94) compared to the performance of double combinations or single biomarkers, respectively. Notably, among patients with AFP levels≤20 ng/μl, the double combination panel (TERT@miR-122) retains satisfactory diagnostic performance in discriminating HCC from the others (HCC vs. CHB, AUC = 0.96; HCC vs. LC, AUC = 0.88, HCC vs. non-HCC, AUC = 0.94). The triple combination panel AFP@TERT@miR-122 shows a better diagnostic performance for screening HCC in HBV patients, regardless of AFP levels. The newly established panels can be a potential application in clinical practice in Vietnamese setting.
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Affiliation(s)
- Ngo Tat Trung
- Centre for Genetic Consultation and Cancer Screening, 108 Military Central Hospital, Hanoi, Vietnam. .,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam.
| | - Nghiem Xuan Hoan
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam.,Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Pham Quang Trung
- Centre for Genetic Consultation and Cancer Screening, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Mai Thanh Binh
- Department of Gastroenterology, 108 Military Central Hospital, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Mai Hong Bang
- Department of Gastroenterology, 108 Military Central Hospital, Hanoi, Vietnam
| | - Le Huu Song
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam. .,Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam.
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23
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Auer ED, Tong HV, Amorim LM, Malheiros D, Hoan NX, Issler HC, Petzl-Erler ML, Beltrame MH, Boldt ABW, Toan NL, Song LH, Velavan TP, Augusto DG. Natural killer cell receptor variants and chronic hepatitis B virus infection in the Vietnamese population. Int J Infect Dis 2020; 96:541-547. [PMID: 32422377 DOI: 10.1016/j.ijid.2020.05.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Genes of host immunity play an important role in disease pathogenesis and are determinants of clinical courses of infections, including hepatitis B virus (HBV). Killer-cell immunoglobulin-like receptor (KIR), expressed on the surface of natural killer cells (NK), regulate NK cell cytotoxicity by interacting with human leukocyte antigen (HLA) class I molecules and are candidates for influencing the course of HBV. This study evaluated whether variations in KIR gene content and HLA-C ligands are associated with HBV and with the development of liver cirrhosis and hepatocellular carcinoma. METHODS A Vietnamese study cohort (HBV n = 511; controls n = 140) was genotyped using multiplex sequence-specific polymerase chain reaction (PCR-SSP) followed by melting curve analysis. RESULTS The presence of the functional allelic group of KIR2DS4 was associated with an increased risk of chronic HBV (OR = 1.86, pcorr = 0.02), while KIR2DL2+HLA-C1 (OR = 0.62, pcorr = 0.04) and KIR2DL3+HLA-C1 (OR = 0.48, pcorr = 0.04) were associated with a decreased risk. The pair KIR2DL3+HLA-C1 was associated with liver cirrhosis (OR = 0.40, pcorr = 0.01). The presence of five or more activating KIR variants was associated with hepatocellular carcinoma (OR = 0.53, pcorr = 0.04). CONCLUSIONS KIR gene content variation and combinations KIR-HLA influence the outcome of HBV infection.
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Affiliation(s)
- Eduardo Delabio Auer
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Vietnamese German Center for Medical Research (VGCARE), Hanoi, Viet Nam
| | - Leonardo Maldaner Amorim
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Danielle Malheiros
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese German Center for Medical Research (VGCARE), Hanoi, Viet Nam; Institute of Clinical Infectious Diseases, Hanoi, Viet Nam
| | - Hellen Caroline Issler
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Maria Luiza Petzl-Erler
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Márcia Holsbach Beltrame
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Angelica Beate Winter Boldt
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Vietnamese German Center for Medical Research (VGCARE), Hanoi, Viet Nam
| | - Le Huu Song
- Vietnamese German Center for Medical Research (VGCARE), Hanoi, Viet Nam; Institute of Clinical Infectious Diseases, Hanoi, Viet Nam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese German Center for Medical Research (VGCARE), Hanoi, Viet Nam; Faculty of Medicine, Duy Tan University, Da Nang, Viet Nam.
| | - Danillo G Augusto
- Programa de Pós-Graduação em Genética, Departamento de Genética, Universidade Federal do Paraná (UFPR), Curitiba, Brazil.
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Trung NT, Hai LT, Giang DP, Hoan PQ, Binh MT, Hoan NX, Toan NL, Meyer CG, Velavan TP, Bang MH, Song LH. No expression of HBV-human chimeric fusion transcript (HBx-LINE1) among Vietnamese patients with HBV-associated hepatocellular carcinoma. Ann Hepatol 2020; 18:404-405. [PMID: 31036498 DOI: 10.1016/j.aohep.2019.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/11/2019] [Accepted: 02/08/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Ngo Tat Trung
- Centre for Genetics Consultation and Cancer Screening, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Department of Molecular Biology, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam.
| | - Le Trung Hai
- Vietnamese Medical Service Corps, Hanoi, Viet Nam
| | - Dao Phuong Giang
- Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Department of Molecular Biology, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam
| | - Phan Quoc Hoan
- Department of Molecular Biology, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam
| | - Mai Thanh Binh
- Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Faculty of Gastroenterology, 108 Institute of Clinical and Pharmaceutical Sciences, Hanoi, Viet Nam
| | - Nghiem Xuan Hoan
- Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Institute for Clinical Infectious Diseases, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Institute of Tropical Medicine, Universitätsklinikum Tübingen, Germany
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Department of Molecular Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam
| | - Christian G Meyer
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Germany; Duy Tan University, Da Nang, Viet Nam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Germany; Duy Tan University, Da Nang, Viet Nam
| | - Mai Hong Bang
- Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Faculty of Gastroenterology, 108 Institute of Clinical and Pharmaceutical Sciences, Hanoi, Viet Nam
| | - Le Huu Song
- Vietnamese-German Center for Medical Research, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam; Institute for Clinical Infectious Diseases, 108 Institute of Clinical and Pharmaceutical Sciences, Viet Nam
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Binh MT, Hoan NX, Giang DP, Tong HV, Bock CT, Wedemeyer H, Toan NL, Bang MH, Kremsner PG, Meyer CG, Song LH, Velavan TP. Upregulation of SMYD3 and SMYD3 VNTR 3/3 polymorphism increase the risk of hepatocellular carcinoma. Sci Rep 2020; 10:2797. [PMID: 32071406 PMCID: PMC7029004 DOI: 10.1038/s41598-020-59667-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 06/05/2019] [Accepted: 02/03/2020] [Indexed: 12/24/2022] Open
Abstract
SMYD3 (SET and MYND domain-containing protein 3) is involved in histone modification, which initiates oncogenesis by activating transcription of multiple downstream genes. To investigate associations of variable numbers of tandem repeats (VNTR) variants in the SMYD3 gene promoter, SMYD3 serum levels and SMYD3 mRNA expression in hepatitis B virus (HBV) infection and clinical progression of related liver disease. SMYD3 VNTRs were genotyped in 756 HBV patients and 297 healthy controls. SMYD3 serum levels were measured in 293 patients and SMYD3 mRNA expression was quantified in 48 pairs of hepatocellular tumor and adjacent non-tumor liver tissues. Genotype SYMD3 VNTR 3/3 was more frequent among HCC patients than in controls (Padjusted = 0.037). SMYD3 serum levels increased according to clinical progression of liver diseases (P = 0.01); HCC patients had higher levels than non-HCC patients (P = 0.04). Among patients with SMYD3 VNTR 3/3, HCC patients had higher SMYD3 levels than others (P < 0.05). SMYD3 mRNA expression was up-regulated in HCC tumor tissues compared to other tissues (P = 0.008). In conclusion, upregulation of SMYD3 correlates with the occurrence of HCC and SMYD3 VNTR 3/3 appears to increase the risk of HCC through increasing SMYD3 levels. SMYD3 may be an indicator for HCC development in HBV patients.
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Affiliation(s)
- Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,108 Military Central Hospital, Hanoi, Vietnam
| | - Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,108 Military Central Hospital, Hanoi, Vietnam
| | - Dao Phuong Giang
- Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,108 Military Central Hospital, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,Vietnam Military Medical University, Hanoi, Vietnam
| | - C-Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology and Hepatology, Essen University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,Vietnam Military Medical University, Hanoi, Vietnam
| | | | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,Duy Tan University, Da Nang, Vietnam
| | - Le Huu Song
- Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam.,108 Military Central Hospital, Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany. .,Vietnamese-German Center for Medical Research (VGCARE), Hanoi, Vietnam. .,Duy Tan University, Da Nang, Vietnam.
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Tong HV, Hoan NX, Binh MT, Quyen DT, Meyer CG, Hang DTT, Hang DTD, Son HA, Van Luong H, Thuan ND, Giang NT, Quyet D, Bang MH, Song LH, Velavan TP, Toan NL. Upregulation of Enzymes involved in ISGylation and Ubiquitination in patients with hepatocellular carcinoma. Int J Med Sci 2020; 17:347-353. [PMID: 32132870 PMCID: PMC7053354 DOI: 10.7150/ijms.39823] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 12/12/2019] [Indexed: 12/31/2022] Open
Abstract
Background: ISGylation is the conjugation of ISG15 with target proteins. ISGylation occurs through an enzymatic cascade, which is similar to that of ubiquitination. Through ISGylation, ISG15 can bind to proteins involved in cell proliferation and differentiation, thus promoting genesis and progression of malignancies. The present study aims to investigate expression of genes involved in ISGylation and ubiquitination in patients with hepatocellular carcinoma and to correlate gene expression with clinical laboratory parameters of these patients. Methods: mRNA expression of genes encoding enzymes involved in the ISGylation process (EFP, HERC5, UBA1, UBC and USP18) was evaluated by quantitative real-time PCR in 38 pairs of tumour and adjacent non-tumour tissues from patients with hepatocellular carcinoma and correlated with distinct clinical laboratory parameters. Results: Relative mRNA expression of EFP, HERC5, UBA1 and USP18 was significantly higher in tumour tissues compared to adjacent non-tumour tissues (P=0.006; 0.012; 0.02 and 0.039, respectively). The correlation pattern of mRNA expression between genes in the tumours differed from the pattern in adjacent non-tumour tissues. Relative expression of EFP, HERC5 and UBA1 in adjacent non-tumour tissues was positively associated with direct bilirubin levels (Spearman's rho=0.31, 0.33 and 0.45; P=0.06, 0.05 and 0.01, respectively) and relative expression of USP18 in adjacent non-tumour tissues correlated negatively with ALT levels (Spearman's rho= -0.33, P=0.03). Conclusions: EFP, HERC5, UBA1, and USP18 genes are upregulated in tumour tissues of patients with HCC and, thus, may be associated with the pathogenesis of hepatocellular carcinoma.
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Affiliation(s)
- Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nghiem Xuan Hoan
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Mai Thanh Binh
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Dao Thanh Quyen
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Christian G Meyer
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Duy Tan University, Da Nang, Vietnam
| | - Dinh Thi Thu Hang
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | | | - Ho Anh Son
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Luong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nghiem Duc Thuan
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Truong Giang
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Quyet
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | | | - Le Huu Song
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam.,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Duy Tan University, Da Nang, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
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Hoan NX, Khuyen N, Giang DP, Binh MT, Toan NL, Anh DT, Trung NT, Bang MH, Meyer CG, Velavan TP, Song LH. Vitamin D receptor ApaI polymorphism associated with progression of liver disease in Vietnamese patients chronically infected with hepatitis B virus. BMC Med Genet 2019; 20:201. [PMID: 31864292 PMCID: PMC6925483 DOI: 10.1186/s12881-019-0903-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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: 02/22/2019] [Accepted: 10/03/2019] [Indexed: 02/06/2023]
Abstract
Background Vitamin D derivatives and their receptor (VDR) are potent modulators of immune responses in various diseases including malignancies as well as in metabolic and infectious disorders. The impact of vitamin D receptor polymorphisms on clinical outcomes of hepatitis B virus (HBV) infection is not well understood. This study aims to investigate the potential role of VDR polymorphisms (TaqI, FokI, ApaI, and BsmI) in Vietnamese HBV infected patients and to correlate these polymorphisms with the progression of HBV-related liver disease. Methods Four hundred forty-three HBV infected patients of the three clinically well-defined subgroups chronic hepatitis B (CHB, n = 183), liver cirrhosis (LC, n = 89) and hepatocellular carcinoma (HCC, n = 171) and 238 healthy individuals (HC) were enrolled. VDR polymorphisms were genotyped by DNA sequencing and in-house validated ARMS assays. Logistic regression models were applied in order to determine the association of VDR polymorphisms with manifest HBV infection as well as with progression of related liver diseases mulin different genetic models. Results The VDR ApaI CA genotype was less frequent in HCC than in CHB patients in different genetic models (codominant model, OR = 0.5, 95%CI = 0.3–0.84, P = 0.004; dominant model, OR = 0.46, 95%CI = 0.27–0.76, P = 0.0023). In the recessive model, the genotype ApaI AA was found more frequently among HCC compared to CHB patients (OR = 2.56, 95%CI = 1.01–6.48, P = 0.04). Similarly, the ApaI CA genotype was less frequent in HCC than in non-HCC group codominant model, OR = 0.6, 95%CI = 0.4–0.98, dominant model, P = 0.04 and OR = 0.6, 95%CI = 0.38–0.90, P = 0.017). The ApaI genotypes CA and AA was significantly associated with higher levels of liver enzymes, bilirubin, and HBV DNA (P < 0.05). No association between TaqI, FokI and BsmI polymorphisms and any clinical outcome as well as liver disease progression was found. Conclusions Among the four investigated VDR polymorphisms, ApaI is associated with clinical outcome and liver disease progression in Vietnamese HBV infected patients.
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Clinical Infectious Diseases, 108 Institute of Clinical Medical and Pharmaceutical Sciences, 108 Military Central Hospital, Tran Hung Dao Street N1, Hai Ba Trung District, Hanoi, Vietnam. .,Faculty of Tropical and Infectious Diseases, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam. .,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany. .,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.
| | - Nguyen Khuyen
- Department of Infectious Diseases, Duc Giang Hospital, Hanoi, Vietnam
| | - Dao Phuong Giang
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Department of Molecular Biology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Department of Gastroenterology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Do Tuan Anh
- Department of Infectious Diseases, 103 Military Hospital, Hanoi, Vietnam
| | - Ngo Tat Trung
- Faculty of Tropical and Infectious Diseases, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam.,Department of Molecular Biology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Mai Hong Bang
- Faculty of Tropical and Infectious Diseases, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Gastroenterology, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Duy Tan University, Da Nang, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Duy Tan University, Da Nang, Vietnam
| | - Le Huu Song
- Institute of Clinical Infectious Diseases, 108 Institute of Clinical Medical and Pharmaceutical Sciences, 108 Military Central Hospital, Tran Hung Dao Street N1, Hai Ba Trung District, Hanoi, Vietnam. .,Faculty of Tropical and Infectious Diseases, 108 Institute of Clinical Medical and Pharmaceutical Sciences, Hanoi, Vietnam. .,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.
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Xuan NT, Toan NL, Mao CV, Vuong NB, Giang NT, Hoang NH. Regulation of dendritic cell function by A20 through high glucose-induced Akt2 signaling. J Recept Signal Transduct Res 2019; 39:434-441. [DOI: 10.1080/10799893.2019.1690511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nguyen Thi Xuan
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Can Van Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Ba Vuong
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | | | - Nguyen Huy Hoang
- Institute of Genome Research, 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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Lan VTT, Trang VL, Ngan NT, Son HV, Toan NL. An Internal Control for Evaluating Bisulfite Conversion in the Analysis of Short Stature Homeobox 2 Methylation in Lung Cancer. Asian Pac J Cancer Prev 2019; 20:2435-2443. [PMID: 31450918 PMCID: PMC6852808 DOI: 10.31557/apjcp.2019.20.8.2435] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 08/01/2019] [Indexed: 12/17/2022] Open
Abstract
Objective: The methylation status is considered as powerful diagnostic, prognostic, and predictive biomarkers. However, the limited DNA amount and conversion efficiency after bisulfite treatment are considerable hindrances in quantitative methylation analysis. In this study, we designed an artificial internal control (IC) system that contained the cytosine-free fragment (CFF) following CpG sequences of the SHOX2 promoter whose methylation status has been described as a valuable biomarker of lung cancer. Its performance in quantifying DNA recovery and bisulfite conversion efficiency as well as in detecting false-positive SHOX2 methylation was determined on samples from lung cancer patients. Material and Methods: The IC system is composed of two pConIC and pUnIC plasmids that both contain a cytosine-free (CF) sequence derived from the CFF and the CpG containing SHOX2 sequences. They are identical in sequence, except that in the ConIC insert, all cytosines have been converted into thymines. Thus, the ConIC can be used as calibrator of 100% bisulfite conversion efficiency, while the UnIC is the indicator in order to evaluate the DNA recovery, bisulfite conversion efficiency of the SHOX2 promoter sequence by quantitative real time PCR. Results: The copy number of the target sequences impacted on both DNA recovery rates and bisulfite conversion efficiency. An amount of 0.005 ng pUnIC (106 copies) showed recovery rate of 18%, similar to that of pConIC, and a bisulfite conversion efficiency of the SHOX2 reaching 98.7%. On the contrary, higher copy number of pUnIC showed incomplete conversion (<85%) and over recovery (~42%). Using this calibrator/indicator couple, we were able to detect false-positive SHOX2 methylation (3.77% instead of 0.03%) due to incomplete bisulfite conversion.Conclusion: Our results proposed a customizable internal control using the ConIC/UnIC as calibrator/indicator to quantify simultaneously and accurately the DNA recovery and bisulfite conversion efficiencies of individual sequence as well as whole genome in methylation assays, thus promoting the validation of standardized clinical DNA methylation biomarker values to progress toward clinical applications
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Affiliation(s)
| | - Vu Lan Trang
- Sorbonne Universités, UPMC Univ. Paris 06, École normale supérieure, PSL Research University, CNRS, INSERM, APHP, Laboratoire des Biomolécules (LBM), Paris, France
| | | | | | - Nguyen Linh Toan
- Department of Pathophysiology, Medical University, Ha Dong, Vietnam
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Toan NL, Hang NT, Luu NK, VAN Mao C, VAN Ba N, Xuan NT, Cam TD, Yamamoto N, VAN Tong H, Son HA. Combination of Vaccine Strain Measles Virus and Nimotuzumab in the Treatment of Laryngeal Cancer. Anticancer Res 2019; 39:3727-3737. [PMID: 31262899 DOI: 10.21873/anticanres.13521] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM This study aims to investigate whether the combination of oncolytic viruses with chemoradiotherapy or other therapies is a promising strategy for cancer treatment. MATERIALS AND METHODS The anticancer effects of measles virus (MeV) in combination with nimotuzumab in the treatment of laryngeal cancer were evaluated in vitro and in nude mice inoculated with Hep2 tumors. MTT assay and flow cytometry were used to examine cell death. RESULTS Laryngeal cancer cells treated with MeV+nimotuzumab combination had a significantly lower survival rate compared to those treated with MeV or nimotuzumab alone (p<0.0001). In an animal model bearing human laryngeal tumor, the treated group had a higher survival rate (60%) compared to a untreated group (20%) (p<0.05), and the survival rate of the group treated with MeV+nimotuzumab combination was higher compared to the groups received single treatment. CONCLUSION The MeV+nimotuzumab combination has greater anticancer activities in both laryngeal cancer cells and an animal model.
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Affiliation(s)
- Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam.,Ha Dong Medical College, Hanoi, Vietnam
| | - Nguyen Kim Luu
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Can VAN Mao
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen VAN Ba
- 103 Military Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Thi Xuan
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | - Naoki Yamamoto
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hoang VAN Tong
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam.,Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Ho Anh Son
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam .,Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
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Hoan NX, Huy PX, Sy BT, Meyer CG, Son TV, Binh MT, Giang DP, Tu Anh D, Bock CT, Wang B, Tong HV, Kremsner PG, Song LH, Toan NL, Velavan TP. High Hepatitis E virus (HEV) Positivity Among Domestic Pigs and Risk of HEV Infection of Individuals Occupationally Exposed to Pigs and Pork Meat in Hanoi, Vietnam. Open Forum Infect Dis 2019; 6:ofz306. [PMID: 31660396 PMCID: PMC6735913 DOI: 10.1093/ofid/ofz306] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 10/19/2018] [Accepted: 06/25/2019] [Indexed: 01/08/2023] Open
Abstract
Background Hepatitis E virus (HEV) infection can occur through consumption of undercooked pork meat or exposure to animal feces. Because there are scarce data only in developing countries, we assessed whether pigs might be a potential source of human HEV infections in Vietnam. In addition, we determined anti-HEV seroprevalences in the general population and in individuals professionally exposed to pigs and pork meat. Methods The study took place in Hanoi, Vietnam. Liver tissues from domestic pigs (n = 210) and serum samples obtained from individuals occupationally exposed to pigs and pork meat (n = 283) and from unexposed healthy controls (n = 168) were screened for HEV-ribonucleic acid (RNA) by reverse-transcription polymerase chain reaction. The exposed group was divided into pork meat vendors (n = 81), pig farmers (n = 96), and slaughterers (n = 106). Serum samples were subjected to HEV immunoglobulin (Ig)G and IgM enzyme-linked immunosorbent assays. The HEV genotypes were assessed by direct sequencing, followed by phylogenetic analyses. Results Hepatitis E virus seroprevalence was higher among persons occupationally exposed to pigs/pork meat compared with unexposed individuals (anti-HEV IgM 11% vs 6%, P = .07; anti-HEV IgG 53% vs 31%, P < .0001). Positivity of anti-HEV IgG among slaughterhouse staff was 66%, followed by 51% in pig-farmers and 38% in pork meat vendors (P = .00073). A similar trend was observed for IgM positivity. Of the pig liver tissues, 26 of 210 (12.4%) were positive for HEV-RNA and assessed to be HEV genotype 3. Conclusions Hepatitis E virus circulates in domestic pigs in Hanoi and constitutes a permanent zoonotic disease risk. The high HEV seroprevalence among occupationally exposed individuals indicates an associated risk of HEV infection.
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Institute of Clinical Infectious Diseases, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Pham Xuan Huy
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Bui Tien Sy
- Institute of Clinical Infectious Diseases, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam.,Duy Tan University, Da Nang, Vietnam
| | - Trinh Van Son
- Institute of Clinical Infectious Diseases, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Dao Phuong Giang
- Institute of Clinical Infectious Diseases, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Dam Tu Anh
- Department of Immunology and Pathophysiology, Hanoi Medical University, Vietnam
| | - C-Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Bo Wang
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Hoang Van Tong
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Le Huu Song
- Institute of Clinical Infectious Diseases, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam.,Duy Tan University, Da Nang, Vietnam
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32
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Xuan NT, Trung DM, Minh NN, Nghia VX, Giang NV, Canh NX, Toan NL, Cam TD, Nga NT, Tien TV, Hoang NH. Regulation of p38MAPK-mediated dendritic cell functions by the deubiquitylase otubain 1. HLA 2019; 93:462-470. [PMID: 30908891 DOI: 10.1111/tan.13534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/13/2019] [Accepted: 03/21/2019] [Indexed: 12/14/2022]
Abstract
Dendritic cells (DCs) are professional antigen presenting cells (APCs) that represent the essential link between innate and acquired immunity. Otubain (OTUB) 1 is shown to deubiquitinate TRAFs to suppress virus-induced inflammatory response. MAPK, a downstream molecule of TRAFs, is involved in regulating LPS-induced immune reactions and its activation is sensitive to the presence of OTUB1. Little is known about contributions of OTUB1 to changes in biological properties of DCs. The present study, therefore, explored whether DC functions are influenced by OTUB1. To this end, DCs were isolated and cultured with GM-CSF to attain bone marrow-derived DCs (BMDCs) and followed by treatment with lipopolysaccharide (LPS) in the presence or absence of OTUB1 siRNA. Expression of markers of cellular maturation and proliferation were analyzed by flow cytometry, and secretion of inflammatory cytokines and ability to stimulate CD4+ T-cells in allogenic mixed leukocyte reaction (allo-MLR) by ELISA, cell migration by a transwell migration assay and phagocytic capacity by FITC-dextran uptake measurement. As a result, treatment of the cells with OTUB1 siRNA prolonged activation of p38MAPK, increased CD54 expression and IL-6 release and reduced FITC-dextran uptake. Moreover, cytokine release produced from CD4+ T-cells in allo-MLR was different. The enhanced level of IFN-γ, but not other cytokine production was observed in the presence of siRNA OTUB1. All the effects were completely abolished when the cells were exposed with p38MAPK inhibitor SB203580. In conclusion, OTUB1 prevents the prolonged activation of p38MAPK, which in turn compromises DC functions.
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Affiliation(s)
- Nguyen Thi Xuan
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Do Minh Trung
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nghiem Ngoc Minh
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Vu Xuan Nghia
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Van Giang
- Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Nguyen Xuan Canh
- Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Truong Dinh Cam
- Department of Cardiology, 175 Military Medical Hospital, Ho Chi Minh, Vietnam
| | - Nguyen Thanh Nga
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Tran Viet Tien
- Department of Infectious Diseases, 103 Hospital, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Huy Hoang
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Binh MT, Hoan NX, Van Tong H, Sy BT, Trung NT, Bock CT, Toan NL, Song LH, Bang MH, Meyer CG, Kremsner PG, Velavan TP. NTCP S267F variant associates with decreased susceptibility to HBV and HDV infection and decelerated progression of related liver diseases. Int J Infect Dis 2019; 80:147-152. [PMID: 30685591 DOI: 10.1016/j.ijid.2019.01.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/16/2019] [Accepted: 01/19/2019] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES To determine potential associations of the rs2296651 variant (c.800C>T, S267F) of NTCP with HBV and HBV plus concomitant HDV infection as well as with the progression of related liver diseases. METHODS The S267F variant was genotyped by DNA sequencing in 620 HBV-infected patients and 214 healthy controls (HCs). Among the patients, 450 individuals were tested for HDV by a nested PCR assay. Logistic regression was applied to examine the association. RESULTS The S267F variant was found more frequently among HCs (16%) compared to HBV-infected (6%) and HBV-HDV co-infected patients (3%) (HBV patients vs HC: OR=0.32, P=0.00002 and HDV patients vs. HC: OR=0.17, P=0.018). The frequency of S267F variant was inversely correlated with CHB, LC or HCC patients compared with HCs (OR=0.31, P=0.001; OR=0.32, P=0.013; OR=0.34, P=0.002, respectively). S267F variant was also associated with decreased risk of the development of advanced liver cirrhosis (LC) and hepatocellular carcinoma (HCC) (Child B and C vs. Child A, OR=0.26, adjusted P=0.016; BCLC B,C,D vs. BCLC A, OR=0.038, P=0.045, respectively). In addition, patients with the genotype CT had lower levels of AST, ALT, total and direct bilirubin as well as higher platelet counts, indicating an association with a more favorable clinical outcome. CONCLUSION The NTCP S267F variant of the SLC10A1 gene exhibits protective effects against HBV and HDV infection and is associated with a reduced risk of developing to advanced stages of LC and HCC.
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Affiliation(s)
- Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, Hanoi, Vietnam; 108 Military Central Hospital, Hanoi, Vietnam
| | - Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, Hanoi, Vietnam; 108 Military Central Hospital, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, Hanoi, Vietnam; Vietnam Military Medical University, Hanoi, Vietnam
| | - Bui Tien Sy
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam; 108 Military Central Hospital, Hanoi, Vietnam
| | - Ngo Tat Trung
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam; 108 Military Central Hospital, Hanoi, Vietnam
| | - C-Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam; Vietnam Military Medical University, Hanoi, Vietnam
| | - Le Huu Song
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam; 108 Military Central Hospital, Hanoi, Vietnam
| | | | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, Hanoi, Vietnam; Duy Tan University, Da Nang, Vietnam
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese-German Center for Medical Research, Hanoi, Vietnam; Duy Tan University, Da Nang, Vietnam.
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Van Tong H, Van Ba N, Hoan NX, Binh MT, Quyen DT, Son HA, Van Luong H, Quyet D, Meyer CG, Song LH, Toan NL, Velavan TP. Soluble fibrinogen-like protein 2 levels in patients with hepatitis B virus-related liver diseases. BMC Infect Dis 2018; 18:553. [PMID: 30419833 PMCID: PMC6233598 DOI: 10.1186/s12879-018-3473-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 04/03/2018] [Accepted: 10/31/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Clinical progression of HBV-related liver diseases is largely associated with the activity of HBV-specific T cells. Soluble fibrinogen-like protein 2 (sFGL2), mainly secreted by T cells, is an important effector molecule of the immune system. METHODS sFGL2 levels were determined by ELISA assays in sera of 296 HBV patients clinically classified into the subgroups of acute hepatitis B (AHB), chronic hepatitis B (CHB), liver cirrhosis (LC), hepatocellular carcinoma (HCC) and patients with LC plus HCC. As control group, 158 healthy individuals were included. FGL2 mRNA was quantified by qRT-PCR in 32 pairs of tumor and adjacent non-tumor liver tissues. RESULTS sFGL2 levels were elevated in HBV patients compared to healthy controls (P < 0.0001). In the patient group, sFGL2 levels were increased in AHB compared to CHB patients (P = 0.017). sFGL2 levels were higher in LC patients compared to those without LC (P = 0.006) and were increased according to the development of cirrhosis as staged by Child-Pugh scores (P = 0.024). Similarly, HCC patients had increased sFGL2 levels compared to CHB patients (P = 0.033) and FGL2 mRNA was up-regulated in tumor tissues compared to adjacent non-tumor tissues (P = 0.043). In addition, sFGL2 levels were positively correlated with HBV-DNA loads and AST (Spearman's rho = 0.21, 0.25 and P = 0.006, 0.023, respectively), but reversely correlated with platelet counts and albumin levels (Spearman's rho = - 0.27, - 0.24 and P = 0.014, 0.033, respectively). CONCLUSIONS sFGL2 levels are induced by HBV infection and correlated with the progression and clinical outcome of HBV-related liver diseases. Thus, sFGL2 may serve as a potential indicator for HBV-related liver diseases.
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Affiliation(s)
- Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam. .,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam. .,Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany.
| | - Nguyen Van Ba
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany.,108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany.,108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Dao Thanh Quyen
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany.,108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Ho Anh Son
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Hoang Van Luong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Do Quyet
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, 222 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam.,Medical Faculty, Duy Tan University, Da Nang, Vietnam
| | - Le Huu Song
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstrasse 27, 72074, Tübingen, Germany. .,Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam. .,Medical Faculty, Duy Tan University, Da Nang, Vietnam.
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35
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Lan VTT, Son HV, Trang VL, Trang NT, Phuong NT, Toan NL, Duong PAT. Methylation profiles of miR34 gene family in Vietnamese patients suffering from breast and lung cancers. Mol Med Rep 2018; 18:2476-2484. [PMID: 29916548 DOI: 10.3892/mmr.2018.9182] [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] [Received: 12/02/2017] [Accepted: 04/03/2018] [Indexed: 11/05/2022] Open
Abstract
The three genes encoding small non‑coding microRNA (miR)34a, MIR34b and MIR34c act as tumor‑suppressor genes. Their aberrant expressions regulated by DNA methylation have been frequently found in various types of cancer. In the present study, the DNA promoter methylation profiles of the MIR34 gene family were analyzed using the methylation specific polymerase chain reaction in order to clarify their association with breast and lung cancer, non‑cancerous or normal adjacent tissues. The methylation frequency of MIR34a was significantly higher in breast cancer (49.37%) compared with normal adjacent tissues (30.38%). The methylation frequency of MIR34b/c was 59.49 and 62.03% in breast cancer and normal adjacent tissues, respectively. MIR34a methylation showed a significant concordance with that of MIR34b/c only in breast cancer tissue. MIR34a methylation was significantly associated with cancer and the invasive ductal carcinoma type of breast cancer (P=0.015 and P=0.02, respectively). Methylation frequency of MIR34a and MIR34b/c was 48.42 and 56.84% in lung cancer, and 47.22 and 51.39% in pulmonary diseases, respectively. No significant association was observed between the methylation status of MIR34a and MIR34b/c, and the clinicopathological features of lung cancer or with those of non‑cancerous pulmonary diseases. Promoter methylation of MIR34a and MIR34b/c occurs frequently and concomitantly in breast and lung cancer, as well as in pulmonary diseases tissues, but not in breast normal tissues adjacent to tumor. These results of the present study emphasize the involvement of MIR34 methylation in human diseases, including cancer. Furthermore, MIR34a methylation may be a promising marker for a subtype of breast cancer.
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Affiliation(s)
| | - Ho Van Son
- Department of Pathophysiology, 175 Hospital, Ho Chi Minh, Vietnam
| | - Vu Lan Trang
- Laboratoire des Biomolécules, Sorbonne Universités, Université Pierre et Marie Curie University Paris 06, École Normale Supérieure, Paris Sciences et Lettres Research University, Centre National de la Recherche Scientifique, Institut National de la Santé Et de la Recherche Médicale, Assistance Publique Hôpitaux de Paris, 75012 Paris, France
| | | | | | - Nguyen Linh Toan
- Department of Pathophysiology, Medical University, Ha Dong, Vietnam
| | - Pham Anh Thuy Duong
- Department of Gene Technology, Vinmec Research Institute of Stem Cell and Gene Technology, Hanoi, Vietnam
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Van Tong H, Hoan NX, Binh MT, Quyen DT, Meyer CG, Song LH, Toan NL, Velavan TP. Interferon-stimulated gene 20 kDa protein serum levels and clinical outcome of hepatitis B virus-related liver diseases. Oncotarget 2018; 9:27858-27871. [PMID: 29963243 PMCID: PMC6021248 DOI: 10.18632/oncotarget.25559] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 05/21/2018] [Indexed: 01/20/2023] Open
Abstract
Interferon-stimulated gene 20 kDa protein (ISG20) with 3' to 5' exonuclease activity mainly targeting single-stranded RNA plays an important role in immune responses against various infectious pathogens, including hepatitis viruses. ISG20 levels were measured by ELISA assays in sera of 339 hepatitis B-virus (HBV) infected patients and 71 healthy individuals and were correlated with clinical and laboratory parameters. ISG20 mRNA was quantified by qRT-PCR in 30 pairs of hepatocellular carcinoma (HCC) tumour and adjacent non-tumour liver tissues. ISG20 levels were significantly elevated in HBV patients compared to healthy controls (P<0.0001). In the patient group, varying ISG20 levels were associated with different forms of HBV-related liver diseases. ISG20 levels were higher in patients with HCC compared to those without HCC (P<0.0001), and increased according to the stages of HCC (P<0.0001). ISG20 mRNA expression was up-regulated in tumour tissues compared to the expression in adjacent non-tumour tissues (P=0.017). Importantly, ISG20 levels were strongly correlated with the levels of AST, ALT, total and direct bilirubin among HCC patients (Pearson's r = 0.43, 0.35, 0.34, 0.3; P<0.0001, respectively). Although differences between liver cirrhosis (LC) and non-LC patients were not observed, ISG20 levels were elevated according to the progression of cirrhosis in patients with LC plus HCC (P=0.005). In conclusions, ISG20 levels are induced by HBV infection and significantly associated with progression and clinical outcome of HBV-related liver diseases, especially in patients with HCC. ISG20 might be a potential indicator for liver injury and the clinical outcome in HBV-related HCC.
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Affiliation(s)
- Hoang Van Tong
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
- 108 Military Central Hospital, Hanoi, Vietnam
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
- 108 Military Central Hospital, Hanoi, Vietnam
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Dao Thanh Quyen
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
- 108 Military Central Hospital, Hanoi, Vietnam
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Christian G. Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Duy Tan University, Da Nang, Vietnam
| | - Le Huu Song
- 108 Military Central Hospital, Hanoi, Vietnam
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Duy Tan University, Da Nang, Vietnam
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Toan NL, Van Hoan N, Cuong DV, Dung NV, Dung PT, Hang NT, Dieu DTH, Chung DT, Son HA, Phong PX, Lenon GB, Van De D, Van Tong H. Adipose tissue-derived cytokines and their correlations with clinical characteristics in Vietnamese patients with type 2 diabetes mellitus. Diabetol Metab Syndr 2018; 10:41. [PMID: 29785210 PMCID: PMC5952428 DOI: 10.1186/s13098-018-0343-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 05/05/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Adipokines are involved in the pathogenesis of metabolic disorders including obesity and type 2 diabetes mellitus (T2DM). This study investigates the levels of leptin, resistin, visfatin, secreted frizzled-related protein 5 (SFRP5), monocyte chemoattractant protein-1 (MCP-1) and retinol-binding protein 4 (RBP4) and their correlations with clinical parameters of overweight and T2DM. METHODS We recruited overweight 50 patients with T2DM, 88 non-overweight patients with T2DM, 29 overweight and 100 non-overweight individuals devoid of T2DM for this study. The levels of studied adipokines were measured by enzyme-linked immunosorbent assay and correlated with clinical parameters. RESULTS The levels of MCP-1 and SFRP5 were decreased while visfatin and RBP4 levels were increased in patients with T2DM compared to those in the control individuals (P < 0.01). Among patients with T2DM, leptin and resistin levels were higher while RBP4 levels were lower in patients with overweight T2DM compared to those in patients with non-overweight T2DM (P < 0.0001, 0.019 and 0.05, respectively). Leptin and MCP-1 levels were correlated with HOMA-IR, QUICKI and HOMA-β. Leptin/MCP-1 ratio was correlated with insulin levels, HOMA-IR and HOMA-β indexes. Resistin/RBP4, visfatin/MCP-1 and MCP-1/RBP4 ratios were strongly correlated with the levels of fasting glucose, HbA1c and HOMA-β. In addition, ROC curve analyses indicated a diagnostic potential of resistin/RBP4 and MCP-1/RBP4 indexes for T2DM (AUC = 0.81 and 0.83, respectively) and β-cell function (AUC = 0.76 and 0.74, respectively). CONCLUSIONS Adipokines (leptin, resistin, visfatin, SFRP5, MCP-1, and RBP4) are associated with overweight and T2DM and may serve as a potential prognostic marker and therapeutic intervention for overweight-related T2DM.
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Affiliation(s)
- Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Nguyen Van Hoan
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
- Department of Endocrine, Vietnam Military Medical University, 103 Military Hospital, Hanoi, Vietnam
- Nghe An Endocrine Hospital, Nghe An, Vietnam
| | - Doan Viet Cuong
- Department of Endocrine, Vietnam Military Medical University, 103 Military Hospital, Hanoi, Vietnam
| | - Nguyen Viet Dung
- Department of Endocrine, Vietnam Military Medical University, 103 Military Hospital, Hanoi, Vietnam
| | - Phan The Dung
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
- Department of Endocrine, Vietnam Military Medical University, 103 Military Hospital, Hanoi, Vietnam
- Nghe An Endocrine Hospital, Nghe An, Vietnam
| | - Ngo Thu Hang
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Do Thi Huyen Dieu
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
- Binh Dinh Medical School, Qui Nhon, Binh Dinh Vietnam
| | - Dang Thanh Chung
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
| | - Ho Anh Son
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
| | | | - George Binh Lenon
- Discipline of Chinese Medicine, School of Health & Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Doan Van De
- Department of Endocrine, Vietnam Military Medical University, 103 Military Hospital, Hanoi, Vietnam
| | - Hoang Van Tong
- Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Hanoi, Vietnam
- Institute of Biomedicine and Pharmacy, Vietnam Military Medical University, Hanoi, Vietnam
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38
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Son HA, Zhang L, Cuong BK, Van Tong H, Cuong LD, Hang NT, Nhung HTM, Yamamoto N, Toan NL. Combination of Vaccine-Strain Measles and Mumps Viruses Enhances Oncolytic Activity against Human Solid Malignancies. Cancer Invest 2018; 36:106-117. [PMID: 29485292 DOI: 10.1080/07357907.2018.1434539] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Oncolytic measles and mumps viruses (MeV, MuV) have a potential for anti-cancer treatment. We examined the anti-tumor activity of MeV, MuV, and MeV-MuV combination (MM) against human solid malignancies (HSM). MeV, MuV, and MM targeted and significantly killed various cancer cell lines of HSM but not normal cells. MM demonstrated a greater anti-tumor effect and prolonged survival in a human prostate cancer xenograft tumor model compared to MeV and MuV. MeV, MuV, and MM significantly induced the expression of immunogenic cell death markers and enhanced spleen-infiltrating immune cells. In conclusion, MM combination significantly improves the treatment of human solid malignancies.
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Affiliation(s)
- Ho Anh Son
- a Department of Pathophysiology , Vietnam Military Medical University , Hanoi , Vietnam
| | - LiFeng Zhang
- b Department of Microbiology , Yong Loo Lin School of Medicine , National University of Singapore , Singapore.,e Department of immunology , Guangxi University of Chinese Medicine , Nanning, Guangxi Zhuang autonomous region, China
| | - Bui Khac Cuong
- a Department of Pathophysiology , Vietnam Military Medical University , Hanoi , Vietnam
| | - Hoang Van Tong
- a Department of Pathophysiology , Vietnam Military Medical University , Hanoi , Vietnam.,c Institute of Biomedicine and Pharmacy , Vietnam Military Medical University , Hanoi , Vietnam
| | - Le Duy Cuong
- a Department of Pathophysiology , Vietnam Military Medical University , Hanoi , Vietnam
| | - Ngo Thu Hang
- a Department of Pathophysiology , Vietnam Military Medical University , Hanoi , Vietnam
| | | | - Naoki Yamamoto
- b Department of Microbiology , Yong Loo Lin School of Medicine , National University of Singapore , Singapore
| | - Nguyen Linh Toan
- a Department of Pathophysiology , Vietnam Military Medical University , Hanoi , Vietnam
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Hoan NX, Van Tong H, Giang DP, Toan NL, Meyer CG, Bock CT, Kremsner PG, Song LH, Velavan TP. Interferon-stimulated gene 15 in hepatitis B-related liver diseases. Oncotarget 2018; 7:67777-67787. [PMID: 27626177 PMCID: PMC5356518 DOI: 10.18632/oncotarget.11955] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 06/11/2016] [Accepted: 09/05/2016] [Indexed: 02/07/2023] Open
Abstract
This study investigates the association of Interferon-stimulated gene 15 (ISG15) polymorphisms, ISG15 serum levels and expression with HBV-related liver diseases. The ISG15 promoter and the two exons of the gene were screened for polymorphisms in 766 HBV-infected patients and in 223 controls. Soluble ISG15 levels were measured by ELISA. ISG15 mRNA expression was quantified by qRT-PCR in 36 tumor and adjacent non-tumor tissues. The exon 2 allele rs1921A was found associated with decreased progression of HBV-related liver diseases (LC vs. CHB: OR = 0.6, 95%CI = 0.4-0.8, adjusted P = 0.003; HCC vs. CHB: OR = 0.6, 95%CI = 0.4-0.9, adjusted P = 0.005). The rs1921AA genotype was associated with low levels of AST, ALT and total bilirubin, but with high prothrombin levels (P < 0.05). ISG15 serum levels were higher among HBV patients compared to controls (P < 0.0001) and positively associated with HBV-related liver diseases, with highest levels among LC patients. ISG15 levels were correlated with HBV-DNA loads (P = 0.001). In non-tumor tissues from HCC patients, ISG15 mRNA expression was increased in HBV compared to non-HBV infection (P = 0.016). The ISG15 rs1921 variant and ISG15 expression are associated with HBV-related liver diseases. Taken together, ISG15 appears to be a proviral factor involved in HBV replication and triggering progression of HBV-related liver diseases.
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Dao Phuong Giang
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - C-Thomas Bock
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Le Huu Song
- 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research, Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
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Sy BT, Hoan NX, Tong HV, Meyer CG, Toan NL, Song LH, Bock CT, Velavan TP. Genetic variants of interferon regulatory factor 5 associated with chronic hepatitis B infection. World J Gastroenterol 2018; 24:248-256. [PMID: 29375210 PMCID: PMC5768943 DOI: 10.3748/wjg.v24.i2.248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/15/2017] [Accepted: 11/27/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate possible effects of IRF5 polymorphisms in the 3’ UTR region of the IFR5 locus on susceptibility to hepatitis B virus (HBV) infection and progression of liver diseases among clinically classified Vietnamese patients.
METHODS Four IFR5 SNPs (rs13242262A/T, rs77416878C/T, rs10488630A/G, and rs2280714T/C) were genotyped in clinically classified HBV patients [chronic hepatitis B (CHB). n = 99; liver cirrhosis (LC), n = 131; hepatocellular carcinoma (HCC), n = 149] and in 242 healthy controls by direct sequencing and TaqMan real-time PCR assays.
RESULTS Comparing patients and controls, no significant association was observed for the four IFR5 variants. However, the alleles rs13242262T and rs10488630G contributed to an increased risk of liver cirrhosis (LC vs CHB: OR = 1.5, 95%CI: 1.1-2.3, adjusted P = 0.04; LC vs CHB: OR = 1.7, 95%CI: 1.1-2.6, adjusted P = 0.019). Haplotype IRF5*TCGT constructed from 4 SNPs was observed frequently in LC compared to CHB patients (OR = 2.1, 95%CI: 1.2-3.3, adjusted P = 0.008). Haplotype IRF5*TCAT occurred rather among CHB patients than in the other HBV patient groups (LC vs CHB: OR = 0.4, 95%CI: 0.2-0.8, adjusted P = 0.03; HCC vs CHB: OR = 0.3, 95%CI: 0.15-0.7, adjusted P = 0.003). The IRF5*TCAT haplotype was also associated with increased levels of ALT, AST and bilirubin.
CONCLUSION Our study shows that IFR5 variants may contribute as a host factor in determining the pathogenesis in chronic HBV infections.
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Affiliation(s)
- Bui Tien Sy
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Nghiem Xuan Hoan
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
- Institute of Tropical Medicine, University of Tübingen, Tübingen 72074, Germany
| | - Hoang Van Tong
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Christian G Meyer
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Institute of Tropical Medicine, University of Tübingen, Tübingen 72074, Germany
| | - Nguyen Linh Toan
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Le Huu Song
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
| | - Claus-Thomas Bock
- Institute of Tropical Medicine, University of Tübingen, Tübingen 72074, Germany
- Department of Infectious Diseases, Robert Koch Institute, Berlin 13302, Germany
| | - Thirumalaisamy P Velavan
- Vietnamese-German Center of Excellence in Medical Research, Hanoi, Vietnam
- Institute of Tropical Medicine, University of Tübingen, Tübingen 72074, Germany
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
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Amorim LM, van Tong H, Hoan NX, Vargas LDB, Ribeiro EMDSF, Petzl-Erler ML, Boldt ABW, Toan NL, Song LH, Velavan TP, Augusto DG. KIR-HLA distribution in a Vietnamese population from Hanoi. Hum Immunol 2017; 79:93-100. [PMID: 29191786 DOI: 10.1016/j.humimm.2017.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 11/14/2017] [Accepted: 11/24/2017] [Indexed: 12/22/2022]
Abstract
The KIR (killer cell immunoglobulin-like receptors) gene family codifies a group of receptors that recognize human leukocyte antigens (HLA) and modulate natural killer (NK) cells response. Genetic diversity of KIR genes and HLA ligands has not yet been deeply investigated in South East Asia. Here, we characterized KIR gene presence and absence polymorphism of 14 KIR genes and two pseudogenes, as well as the frequencies of the ligands HLA-Bw4, HLA-C1 and HLA-C2 in a Vietnamese population from Hanoi (n = 140). Genotyping was performed by polymerase chain reaction with specific sequence primers (PCR-SSP). We compared KIR frequencies and performed principal component analysis with 43 worldwide populations of different ancestries. KIR carrier frequencies in Vietnamese were similar to those reported for Thai and Chinese Han, but differed significantly from other geographically close populations such as Japanese and South Korean. This similarity was also observed in KIR gene-content genotypes and is in accordance with the origin from Southern China and Thailand proposed for the Vietnamese population. The frequencies of HLA ligands observed in Vietnamese did not differ from those reported for other East-Asian populations (p > .05). Studies regarding KIR-HLA in populations are of prime importance to understand their evolution, function and role in diseases.
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Affiliation(s)
| | - Hoang van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Vietnamese - German Center for Excellence in Medical Research, Hanoi, Viet Nam
| | - Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Vietnamese - German Center for Excellence in Medical Research, Hanoi, Viet Nam; Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Viet Nam
| | | | | | | | - Angelica B W Boldt
- Laboratório de Genética Molecular Humana, Universidade Federal do Paraná, Curitiba, Brazil
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Vietnamese - German Center for Excellence in Medical Research, Hanoi, Viet Nam
| | - Le Huu Song
- Vietnamese - German Center for Excellence in Medical Research, Hanoi, Viet Nam; Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Viet Nam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany; Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Viet Nam; Vietnamese - German Center for Excellence in Medical Research, Hanoi, Viet Nam.
| | - Danillo G Augusto
- Laboratório de Genética Molecular Humana, Universidade Federal do Paraná, Curitiba, Brazil; Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Brazil.
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Hoan NX, Van Tong H, Giang DP, Cuong BK, Toan NL, Wedemeyer H, Bock CT, Kremsner PG, Song LH, Velavan TP. SOCS3 genetic variants and promoter hypermethylation in patients with chronic hepatitis B. Oncotarget 2017; 8:17127-17139. [PMID: 28179578 PMCID: PMC5370028 DOI: 10.18632/oncotarget.15083] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 11/10/2016] [Accepted: 01/11/2017] [Indexed: 12/31/2022] Open
Abstract
The clinical manifestations of hepatitis B viral infection (HBV) include chronic hepatitis B (CHB), liver cirrhosis (LC) and hepatocellular carcinoma (HCC). The contribution of negative regulator suppressor of cytokine signaling-3 (SOCS3) promoter variants in HBV disease and SOCS3 hypermethylation in tumor tissues were investigated The SOCS3 promoter region was screened for polymorphisms in 878 HBV patients and in 272 healthy individuals. SOCS3 promoter methylation was examined by bisulfite sequencing. SOCS3 mRNA expression was quantified in 37 tumor and adjacent non-tumor liver tissue specimens. The minor allele rs12953258A was associated with increased susceptibility to HBV infection (OR=1.3, 95%CI=1.1-1.6, adjusted P=0.03). The minor allele rs111033850C and rs12953258A were observed in increased frequencies in HCC and LC patients compared to CHB patients (HCC: OR=1.7, 95%CI=1.1-2.9, adjusted P=0.046; LC: OR=1.4, 95%CI=1.1-1.9, adjusted P=0.017, respectively). HBV patients with rs111033850CC major genotype had decreased viral load (P=0.034), whereas the rs12953258AA major genotype contributed towards increased viral load (P=0.029). Tumor tissues revealed increased hypermethylation compared to adjacent non-tumor tissues (OR=5.4; 95%CI= 1.9-17.1; P=0.001). Increased SOCS3 expression was observed in HBV infested tumor tissues than non-HBV related tumor tissues (P=0.0048). SOCS3 promoter hypermethylation was associated with relatively low mRNA expression in tumor tissues (P=0.0023). In conclusion, SOCS3 promoter variants are associated with HBV susceptibility and SOCS3 hypermethylation stimulates HCC development.
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Dao Phuong Giang
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Bui Khac Cuong
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Heiner Wedemeyer
- German Center for Infection Research, Department for Gastroenterology, Hepatology, and Endocrinology, Medical School Hannover, Germany
| | - C Thomas Bock
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Le Huu Song
- Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam.,Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
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Tong HV, Luu NK, Son HA, Hoan NV, Hung TT, Velavan TP, Toan NL. Adiponectin and pro-inflammatory cytokines are modulated in Vietnamese patients with type 2 diabetes mellitus. J Diabetes Investig 2017; 8:295-305. [PMID: 27684566 PMCID: PMC5415486 DOI: 10.1111/jdi.12579] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 09/02/2016] [Accepted: 09/26/2016] [Indexed: 12/14/2022] Open
Abstract
AIMS/INTRODUCTION Adipose tissue-derived hormones are associated with metabolic disorders including type 2 diabetes mellitus. The present study investigated the levels of adiponectin and pro-inflammatory cytokines including tumor necrosis factor-α (TNF-α), interleukin-1 beta (IL-1β) and IL-10 in Vietnamese patients with type 2 diabetes mellitus, and their correlations with clinical parameters of overweight and type 2 diabetes mellitus. MATERIALS AND METHODS Based on body mass index, 73 patients with type 2 diabetes mellitus were categorized either as overweight or non-overweight. As healthy controls, 57 overweight and non-overweight individuals without type 2 diabetes mellitus were included. The adiponectin, TNF-α, IL-1β and IL-10 levels were measured in the sera samples in all study participants by enzyme-linked immunosorbent assay and were correlated with clinical parameters. RESULTS The adiponectin levels were lower in patients with type 2 diabetes mellitus (2.5 ± 1.5 μg/mL) compared with controls (16 ± 18.6 μg/mL; P < 0.0001), and were decreased in overweight individuals compared with those who were not overweight. The TNF-α and IL-1β levels were increased, whereas the IL-10 levels were decreased in patients with type 2 diabetes mellitus and in overweight controls compared with non-overweight controls (P < 0.0001). The adiponectin levels were correlated with the TNF-α, IL-1β, IL-10 levels, and the clinical parameters of overweight and type 2 diabetes mellitus. The quantitative insulin sensitivity check index and homeostasis model assessment insulin resistance indexes were correlated with the relative ratios of adiponectin/TNF-α, adiponectin/IL-1β, adiponectin/IL-10, TNF-α/IL-10 and IL-1β/IL-10. CONCLUSIONS Adiponectin and pro-inflammatory cytokines are associated with type 2 diabetes mellitus, and might serve as a prognostic marker and a therapeutic intervention for overweight-related type 2 diabetes mellitus.
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Affiliation(s)
- Hoang Van Tong
- Department of PathophysiologyVietnam Military Medical UniversityHa DongHanoiVietnam
- Vietnamese‐German Center for Medical ResearchHanoiVietnam
- Institute of Tropical MedicineUniversity of TübingenTübingenGermany
| | - Nguyen Kim Luu
- 103 Military HospitalVietnam Military Medical UniversityHanoiVietnam
| | - Ho Anh Son
- Department of PathophysiologyVietnam Military Medical UniversityHa DongHanoiVietnam
- Vietnamese‐German Center for Medical ResearchHanoiVietnam
| | | | - Trinh Thanh Hung
- Department of Science and Technology for Economic‐Technical branchesMinistry of Science and TechnologyHanoiVietnam
| | - Thirumalaisamy P Velavan
- Department of PathophysiologyVietnam Military Medical UniversityHa DongHanoiVietnam
- Vietnamese‐German Center for Medical ResearchHanoiVietnam
- Institute of Tropical MedicineUniversity of TübingenTübingenGermany
| | - Nguyen Linh Toan
- Department of PathophysiologyVietnam Military Medical UniversityHa DongHanoiVietnam
- Vietnamese‐German Center for Medical ResearchHanoiVietnam
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Xuan NT, Trang PTT, Van Phong N, Toan NL, Trung DM, Bac ND, Nguyen VL, Hoang NH, Van Hai N. Klotho sensitive regulation of dendritic cell functions by vitamin E. Biol Res 2016; 49:45. [PMID: 27881156 PMCID: PMC5121936 DOI: 10.1186/s40659-016-0105-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 08/09/2016] [Accepted: 11/17/2016] [Indexed: 11/12/2022] Open
Abstract
Background Dendritic cells (DCs) are the most potent professional antigen-presenting cells for naive T cells to link innate and acquired immunity. Klotho, an anti-aging protein, participates in the regulation of Ca2+ dependent migration in DCs. Vitamin E (VitE) is an essential antioxidant to protect cells from damage and elicits its inhibitory effects on NF-κB-mediated inflammatory response. However, the roles of VitE on mouse DC functions and the contribution of klotho to those effects both are unknown. The present study explored the effects of VitE on klotho expression, maturation, ROS production and migration in DCs. Methods The mouse bone marrow cells were isolated and cultured with GM-CSF to attain bone marrow-derived DCs (BMDCs). Cells were stimulated with LPS (100 ng/ml) in the presence or absence of VitE (500 µM). RT-PCR and immunoprecipitation methods were employed to determine klotho expression, ELISA to determine cytokine release, flow cytometry to analyze number of CD86+CD11c+ cells, the intracellular expression of cytokines and reactive oxygen species (ROS) production and a transwell migration assay to trace migration. Results Klotho transcript level and this hormone secretion in DC supernatant were enhanced by VitE treatment and further increased in the presence of NF-κB inhibitor Bay 11-7082 (10 µM). Moreover, VitE treatment inhibited IL-12p70 protein expression of, ROS accumulation in and CCL21-dependent migration of LPS-triggered mature DCs, these effects were reversed following klotho silencing. Conclusion The up-regulation of klotho by VitE could contribute to the inhibitory effects of VitE on NF-κB-mediated DC functional maturation. The events might contribute to immunotherapeutic effect of VitE on the pathophysiology of klotho-related disease.
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Affiliation(s)
- Nguyen Thi Xuan
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
| | - Phi Thi Thu Trang
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Phong
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Ha Dong, Hanoi, Vietnam
| | - Do Minh Trung
- Department of Protein-Toxic-Cells, Biomedical & Pharmaceutical Applied Research Center, Vietnam Military Medical University, Ha Dong, Hanoi, Vietnam
| | - Nguyen Duy Bac
- Vietnam Military Medical University, Ha Dong, Hanoi, Vietnam
| | - Viet Linh Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Huy Hoang
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nong Van Hai
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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Hoan NX, Khuyen N, Binh MT, Giang DP, Van Tong H, Hoan PQ, Trung NT, Anh DT, Toan NL, Meyer CG, Kremsner PG, Velavan TP, Song LH. Association of vitamin D deficiency with hepatitis B virus - related liver diseases. BMC Infect Dis 2016; 16:507. [PMID: 27659316 PMCID: PMC5034475 DOI: 10.1186/s12879-016-1836-0] [Citation(s) in RCA: 38] [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: 04/02/2016] [Accepted: 09/16/2016] [Indexed: 12/14/2022] Open
Abstract
Background As an immune modulator, vitamin D is involved in various pathophysiological mechanisms in a plethora of diseases. This study aims to correlate the vitamin D deficiency status and clinical progression of liver diseases associated with hepatitis B virus (HBV) infection in patients in Vietnam and to compare it to healthy controls. Methods We quantified the levels of total vitamin D [25-(OH) D2 and D3] in serum samples from 400 HBV patients (chronic hepatitis B infection [CHB], n = 165; HBV-associated liver cirrhosis [LC], n = 127; HBV-associated hepatocellular carcinoma [HCC], n = 108) and 122 unrelated healthy controls (HC). Univariate and multivariate analyses were performed in order to determine the association between vitamin D levels and distinct clinical parameters. Results The prevalence of vitamin D inadequacy (<30 ng/mL) was high among healthy individuals (81.7 %) as well as in HBV patients (84.3 %). Vitamin D deficiency (<20 ng/ml) or severe deficiency (<10 ng/ml) was observed more frequently among HBV patients (52 %) and subgroups (CHB, 47.8 %; LC, 54.4 %; HCC, 55.3 %) compared to the control group (32.5 %) (P < 0.001). Vitamin D levels and HBV-DNA load were strongly and inversely correlated (rho = −0.57, P < 0.0001). Multivariate regression analysis also revealed an independent association of HBV-DNA loads with low vitamin D levels (P = 0.0004). In addition, reduced vitamin D levels were associated with significant clinical progression of LC (Child-Pugh C versus Child-Pugh A, P = 0.0018; Child-Pugh C versus Child-Pugh B, P = 0.016). Conclusions Vitamin D deficiency was observed in the majority of HBV-infected patients and associated with adverse clinical outcomes. Our findings suggest that substitution of vitamin D may be a supportive option in the treatment of chronic liver diseases, in particular of HBV-associated disorders.
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Nguyen Khuyen
- Department of Infectious Diseases, Duc Giang Hospital, Hanoi, Vietnam
| | - Mai Thanh Binh
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Dao Phuong Giang
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Phan Quoc Hoan
- Department of Molecular Biology, 108 Military Central Hospital, Hanoi, Vietnam
| | - Ngo Tat Trung
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Molecular Biology, 108 Military Central Hospital, Hanoi, Vietnam
| | - Do Tuan Anh
- Department of Infectious Diseases, Vietnam Military Medical University, Hanoi, Vietnam
| | - Nguyen Linh Toan
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
| | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam.,Fondation Congolaise pour la Recherche Medicale, Brazzaville, Republic of Congo
| | - Le Huu Song
- Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam. .,Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Tran Hung Dao Street N1, Hai Ba Trung District, Hanoi, Vietnam.
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Hoan NX, Tong HV, Hecht N, Sy BT, Marcinek P, Meyer CG, Song LH, Toan NL, Kurreck J, Kremsner PG, Bock CT, Velavan TP. Hepatitis E Virus Superinfection and Clinical Progression in Hepatitis B Patients. EBioMedicine 2015; 2:2080-6. [PMID: 26844288 PMCID: PMC4703726 DOI: 10.1016/j.ebiom.2015.11.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [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: 08/25/2015] [Revised: 10/21/2015] [Accepted: 11/10/2015] [Indexed: 02/07/2023] Open
Abstract
Hepatitis E virus (HEV) infection may cause acute hepatitis and lead to hepatic failure in developing and developed countries. We studied HEV seroprevalences in patients with hepatitis B virus (HBV) infection to understand the consequences of HEV superinfection in a Vietnamese population. This cross-sectional study was conducted from 2012 to 2013 and included 1318 Vietnamese patients with HBV-related liver diseases and 340 healthy controls. The case group included patients with acute (n = 26) and chronic hepatitis B (n = 744), liver cirrhosis (n = 160), hepatocellular carcinoma (n = 166) and patients with both liver cirrhosis and hepatocellular carcinoma (n = 222). Anti-HEV IgG and IgM antibodies were assessed in patients and controls by ELISA. HEV-RNA was identified by PCR assays and sequencing. Seroprevalences of anti-HEV IgG among hepatitis B patients and controls were 45% and 31%, respectively (adjusted P = 0.034). Anti-HEV IgM seroprevalences were 11.6% and 4.7% in patients and controls, respectively (adjusted P = 0.005). Seroprevalences were higher among the elder individuals. When stratifying for patient groups, those with liver cirrhosis had the highest anti-HEV IgG (52%) and anti-HEV IgM (19%) seroprevalences. Hepatitis B patients with current HEV infection had abnormal liver function tests compared to patients with past or without HEV infection. One HEV isolate was retrieved from a patient with both liver cirrhosis and hepatocellular carcinoma and identified as HEV genotype 3. This study indicates high prevalences of HEV infection in Vietnamese HBV patients and among healthy individuals and shows that HEV superinfection may influence the outcome and progression of HBV-related liver disease.
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Key Words
- AFP, alpha-feto protein
- AHB, acute hepatitis B
- ALT, alanine amino transferase
- AST, aspartate amino transferase
- CHB, chronic hepatitis B
- HBV infection
- HBV, hepatitis B virus
- HBV-related liver diseases
- HCC, hepatocellular carcinoma
- HEV seroprevalence
- HEV superinfection
- HEV, hepatitis E virus
- Hepatitis E virus
- IgG, immunoglobulin G
- IgM, immunoglobulin M
- LC, liver cirrhosis
- ORF, open reading frame
- PLT, platelets
- RBC, red blood cells
- WBC, white blood cells
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Affiliation(s)
- Nghiem Xuan Hoan
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Hoang Van Tong
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Nicole Hecht
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Bui Tien Sy
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany; Department of Molecular Biology, Tran Hung Dao Hospital, Hanoi, Viet Nam
| | - Patrick Marcinek
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Christian G Meyer
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - Le Huu Song
- Institute of Clinical Infectious Diseases, Tran Hung Dao Hospital, Hanoi, Viet Nam
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Ha Dong, Hanoi, Viet Nam
| | - Jens Kurreck
- Department of Biotechnology, Technical University of Berlin, Berlin, Germany
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - C-Thomas Bock
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
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Tong HV, Song LH, Hoan NX, Cuong BK, Sy BT, Son HA, Quyet D, Binh VQ, Kremsner PG, Bock CT, Velavan TP, Toan NL. Soluble MICB protein levels and platelet counts during hepatitis B virus infection and response to hepatocellular carcinoma treatment. BMC Infect Dis 2015; 15:25. [PMID: 25626490 PMCID: PMC4318451 DOI: 10.1186/s12879-015-0754-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 01/14/2015] [Indexed: 12/18/2022] Open
Abstract
Background The human major histocompatibility complex class I polypeptide-related sequence B (MICB) is a protein that modulates the NK and T cell activation through the NKG2D receptor and is related to several diseases including cancer. Methods The study investigated the prognostic role of soluble MICB (sMICB) protein in the progression of HBV-related liver diseases and to HBV-related HCC treatment. The sMICB serum levels were measured in 266 chronic HBV-infected Vietnamese patients and in healthy controls, and correlated with clinical and laboratory parameters and with therapeutic interventions for HBV-related HCC. Results Significant differences in both clinical and laboratory parameters were observed among the patient groups with different stages of hepatitis. The platelet counts were significantly decreased with disease progression (P < 0.001). The sMICB serum levels were significantly increased in HBV patients compared to healthy controls (P < 0.0001). Among the patients with different stages of hepatitis, asymptomatic individuals (ASYM) revealed higher sMICB serum levels while liver cirrhosis (LC) patients revealed lower sMICB serum levels (P < 0.0001) compared to other patient groups. Notably, the sMICB serum levels were decreased in treated HCC patient group compared to not-treated HCC patient group (P = 0.05). Additionally, the sMICB levels were significantly correlated with platelet counts in ASYM and HCC patients (r = −0.37, P = 0.009; and r = 0.22, P = 0.025, respectively). Conclusions Our results demonstrate a potential role of sMICB serum levels and platelet counts during immune response to the HBV infection, liver disease progression and response to the HCC treatment.
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Affiliation(s)
- Hoang Van Tong
- Vietnam Military Medical University, 160 Phung Hung Street, Ha Dong District, Ha Noi, Viet Nam. .,Institute of Tropical Medicine, University of Tübingen, Wilhelmstr. 27, 72074, Tübingen, Germany.
| | - Le Huu Song
- Tran Hung Dao Hospital, 108 Institute of Clinical Medical and Pharmaceutical Sciences, No 1 Tran Hung Dao Street, Hai Ba Trung District, Hanoi, Vietnam.
| | - Nghiem Xuan Hoan
- Tran Hung Dao Hospital, 108 Institute of Clinical Medical and Pharmaceutical Sciences, No 1 Tran Hung Dao Street, Hai Ba Trung District, Hanoi, Vietnam.
| | - Bui Khac Cuong
- Vietnam Military Medical University, 160 Phung Hung Street, Ha Dong District, Ha Noi, Viet Nam. .,Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Vietnam.
| | - Bui Tien Sy
- Vietnam Military Medical University, 160 Phung Hung Street, Ha Dong District, Ha Noi, Viet Nam. .,Robert Koch Institute, Seestrasse 10, D-13353, Berlin, Germany.
| | - Ho Anh Son
- Vietnam Military Medical University, 160 Phung Hung Street, Ha Dong District, Ha Noi, Viet Nam. .,Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Vietnam.
| | - Do Quyet
- Vietnam Military Medical University, 160 Phung Hung Street, Ha Dong District, Ha Noi, Viet Nam.
| | - Vu Quoc Binh
- Vietnam Military Medical Bureau, No 276 Nghi Tam, Tay Ho District, Hanoi, Vietnam.
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstr. 27, 72074, Tübingen, Germany.
| | | | - Thirumalaisamy P Velavan
- Institute of Tropical Medicine, University of Tübingen, Wilhelmstr. 27, 72074, Tübingen, Germany. .,Fondation Congolaise pour la Recherche Medicale, P.O Box 2672, Brazzaville, Republic of Congo.
| | - Nguyen Linh Toan
- Vietnam Military Medical University, 160 Phung Hung Street, Ha Dong District, Ha Noi, Viet Nam. .,Department of Pathophysiology, Vietnam Military Medical University, 160 Phung Hung, Ha Dong, Ha Noi, Vietnam.
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48
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Sy BT, Nguyen HM, Toan NL, Song LH, Tong HV, Wolboldt C, Binh VQ, Kremsner PG, Velavan TP, Bock CT. Identification of a natural intergenotypic recombinant hepatitis delta virus genotype 1 and 2 in Vietnamese HBsAg-positive patients. J Viral Hepat 2015; 22:55-63. [PMID: 24548489 DOI: 10.1111/jvh.12228] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 11/08/2013] [Accepted: 01/02/2014] [Indexed: 12/18/2022]
Abstract
Hepatitis D virus (HDV) infection is acquired as a co- /superinfection of Hepatitis B virus (HBV) and can modulate the pathophysiology of chronic hepatitis B and related liver diseases including hepatocellular carcinoma. Among the eight distinct HDV genotypes reported, relatively few studies have attempted to investigate the prevalence of HDV mixed genotypes and RNA recombination of HDV. With a recorded prevalence of 10-20% HBV infection in Vietnam, this study investigated the HDV variability, HDV genotypes and HDV recombination among twenty-one HDV isolates in Vietnamese HBsAg-positive patients. HDV subgenomic and full-length genome sequences were obtained using newly established HDV-specific RT-PCR techniques. The nucleotide homology was observed from 74.6% to 99.4% among the investigated full-length genome of the HDV isolates. We observed HDV genotype 1 and HDV genotype 2 in the investigated Vietnamese patients. Although no HDV genotype mixtures were observed, we report here a newly identified recombinant of HDV genotypes (HDV 1 and HDV 2). The identified recombinant HDV isolate C03 revealed sequence homology to both HDV genotype 1 (nt1 to nt907) and HDV genotype 2 (nt908 to nt1675; HDAg coding region) with a breakpoint at nt908. Our findings demonstrate the prevalence of intergenotypic recombination between HDV genotypes 1 and 2 in a Vietnamese HBsAg-positive patient. Extended investigation on the distribution and prevalence of HDV, HDV mixed genotypes and recombinant HDV genotypes in a larger Vietnamese population offers vital insights into understanding of the micro-epidemiology of HDV and subsequent pathophysiology in chronic HBV- /HDV-related liver diseases.
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Affiliation(s)
- B T Sy
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany; Vietnam Military Medical University, Ha Noi, Viet Nam
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49
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Zhang LF, Tan DQC, Jeyasekharan AD, Hsieh WS, Ho AS, Ichiyama K, Ye M, Pang B, Ohba K, Liu X, de Mel S, Cuong BK, Chng WJ, Ryo A, Suzuki Y, Yeoh KG, Toan NL, Yamamoto N. Combination of vaccine-strain measles and mumps virus synergistically kills a wide range of human hematological cancer cells: Special focus on acute myeloid leukemia. Cancer Lett 2014; 354:272-80. [PMID: 25193462 DOI: 10.1016/j.canlet.2014.08.034] [Citation(s) in RCA: 14] [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] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 08/14/2014] [Accepted: 08/19/2014] [Indexed: 11/28/2022]
Abstract
Through combining vaccine-derived measles and mumps viruses (MM), we efficiently targeted a wide range of hematopoietic cancer cell lines. MM synergistically killed many cell lines including acute myeloid leukemia (AML) cell lines. Further investigation suggested that enhanced oncolytic effect of MM was due to increased apoptosis induction. In an U937 xenograft AML mouse model, MM displayed greater tumor suppression and prolonged survival. Furthermore, MM efficiently killed blasts from 16 out of 20 AML patients and elicited more efficient killing effect on 11 patients when co-administered with Ara-C. Our results demonstrate that MM is a promising therapeutic candidate for hematological malignancies.
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Affiliation(s)
- Li Feng Zhang
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Darren Qian Cheng Tan
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Wen Son Hsieh
- Department of Otolaryngology - Head and Neck Surgery, National University Health System, Singapore; Cancer Science Institute, National University of Singapore, Singapore
| | - Anh Son Ho
- Department of Pathophysiology, Vietnam Military Medical University, Vietnam
| | - Koji Ichiyama
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Min Ye
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Brendan Pang
- Department of Pathology, National University Health System and National University of Singapore, Singapore
| | - Kenji Ohba
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Xin Liu
- Department of Haematology-Oncology, National University Cancer Institute, National University Health System, Singapore
| | - Sanjay de Mel
- Department of Haematology-Oncology, National University Cancer Institute, National University Health System, Singapore
| | - Bui Khac Cuong
- Department of Pathophysiology, Vietnam Military Medical University, Vietnam
| | - Wee Joo Chng
- Cancer Science Institute, National University of Singapore, Singapore; Department of Haematology-Oncology, National University Cancer Institute, National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Akihide Ryo
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Youichi Suzuki
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Khay Guan Yeoh
- Department of Microbiology, Yokohama City University School of Medicine, Yokohama, Japan
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Vietnam
| | - Naoki Yamamoto
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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50
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Sy BT, Ratsch BA, Toan NL, Song LH, Wollboldt C, Bryniok A, Nguyen HM, Luong HV, Velavan TP, Wedemeyer H, Kremsner PG, Bock CT. High prevalence and significance of hepatitis D virus infection among treatment-naïve HBsAg-positive patients in Northern Vietnam. PLoS One 2013; 8:e78094. [PMID: 24205106 PMCID: PMC3799775 DOI: 10.1371/journal.pone.0078094] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 09/07/2013] [Indexed: 02/07/2023] Open
Abstract
Background Hepatitis D virus (HDV) infection is considered to cause more severe hepatitis than hepatitis B virus (HBV) monoinfection. With more than 9.5 million HBV-infected people, Vietnam will face an enormous health burden. The prevalence of HDV in Vietnamese HBsAg-positive patients is speculative. Therefore, we assessed the prevalence of HDV in Vietnamese patients, determined the HDV-genotype distribution and compared the findings with the clinical outcome. Methods 266 sera of well-characterized HBsAg-positive patients in Northern Vietnam were analysed for the presence of HDV using newly developed HDV-specific RT-PCRs. Sequencing and phylogenetic analysis were performed for HDV-genotyping. Results The HDV-genome prevalence observed in the Vietnamese HBsAg-positive patients was high with 15.4% while patients with acute hepatitis showed 43.3%. Phylogenetic analysis demonstrated a predominance of HDV-genotype 1 clustering in an Asian clade while HDV-genotype 2 could be also detected. The serum aminotransferase levels (AST, ALT) as well as total and direct bilirubin were significantly elevated in HDV-positive individuals (p<0.05). HDV loads were mainly low (<300 to 4.108 HDV-copies/ml). Of note, higher HDV loads were mainly found in HBV-genotype mix samples in contrast to single HBV-infections. In HBV/HDV-coinfections, HBV loads were significantly higher in HBV-genotype C in comparison to HBV-genotype A samples (p<0.05). Conclusion HDV prevalence is high in Vietnamese individuals, especially in patients with acute hepatitis B. HDV replication activity showed a HBV-genotype dependency and could be associated with elevated liver parameters. Besides serological assays molecular tests are recommended for diagnosis of HDV. Finally, the high prevalence of HBV and HDV prompts the urgent need for HBV-vaccination coverage.
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Affiliation(s)
- Bui Tien Sy
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
- Department of Pathophysiology, Vietnam Military Medical University, Ha Noi, Ha Dong, Viet Nam
| | - Boris A. Ratsch
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Nguyen Linh Toan
- Department of Pathophysiology, Vietnam Military Medical University, Ha Noi, Ha Dong, Viet Nam
| | - Le Huu Song
- 108 Institute of Clinical Medical and Pharmaceutical Sciences Tran Hung Dao Hospital, Ha Noi, Viet Nam
| | | | - Agnes Bryniok
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Hung Minh Nguyen
- Center of Research and Development, Duy Tan University, da Nang, Viet Nam
| | - Hoang Van Luong
- Department of Pathophysiology, Vietnam Military Medical University, Ha Noi, Ha Dong, Viet Nam
| | | | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Peter G. Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
| | - C.-Thomas Bock
- Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
- Department of Molecular Pathology, University of Tübingen, Tübingen, Germany
- * E-mail:
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