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Kijogi C, Kimura D, Bao LQ, Nakamura R, Chadeka EA, Cheruiyot NB, Bahati F, Yahata K, Kaneko O, Njenga SM, Ichinose Y, Hamano S, Yui K. Modulation of immune responses by Plasmodium falciparum infection in asymptomatic children living in the endemic region of Mbita, western Kenya. Parasitol Int 2018; 67:284-293. [PMID: 29353010 DOI: 10.1016/j.parint.2018.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 01/06/2018] [Accepted: 01/14/2018] [Indexed: 11/24/2022]
Abstract
Individuals living in malaria endemic areas become clinically immune after multiple re-infections over time and remain infected without apparent symptoms. However, it is unclear why a long period is required to gain clinical immunity to malaria, and how such immunity is maintained. Although malaria infection is reported to induce inhibition of immune responses, studies on asymptomatic individuals living in endemic regions of malaria are relatively scarce. We conducted a cross-sectional study of immune responses in asymptomatic school children aged 4-16years living in an area where Plasmodium falciparum and Schistosoma mansoni infections are co-endemic in Kenya. Peripheral blood mononuclear cells were subjected to flow cytometric analysis and cultured to determine proliferative responses and cytokine production. The proportions of cellular subsets in children positive for P. falciparum infection at the level of microscopy were comparable to the negative children, except for a reduction in central memory-phenotype CD8+ T cells and natural killer cells. In functional studies, the production of cytokines by peripheral blood mononuclear cells in response to P. falciparum crude antigens exhibited strong heterogeneity among children. In addition, production of IL-2 in response to anti-CD3 and anti-CD28 monoclonal antibodies was significantly reduced in P. falciparum-positive children as compared to -negative children, suggesting a state of unresponsiveness. These data suggest that the quality of T cell immune responses is heterogeneous among asymptomatic children living in the endemic region of P. falciparum, and that the responses are generally suppressed by active infection with Plasmodium parasites.
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Affiliation(s)
- Caroline Kijogi
- Division of Immunology, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Daisuke Kimura
- Division of Immunology, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Lam Quoc Bao
- Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University
| | - Risa Nakamura
- Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University
| | - Evans Asena Chadeka
- Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Nagasaki University Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Ngetich Benard Cheruiyot
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Nagasaki University Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Felix Bahati
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Nagasaki University Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Kazuhide Yahata
- The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Department of Protozoology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Osamu Kaneko
- Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Department of Protozoology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Sammy M Njenga
- Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
| | - Yoshio Ichinose
- Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Nagasaki University Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Shinjiro Hamano
- Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Parasitology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; The Joint Usage/Research Center on Tropical Disease, Institute of Tropical Medicine (NEKKEN), Nagasaki University; Nagasaki University Kenya Research Station, NUITM-KEMRI Project, Nairobi, Kenya
| | - Katsuyuki Yui
- Division of Immunology, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Program for Nurturing Global Leaders in Tropical and Emerging Infectious Diseases, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan.
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Bao LQ, Nhi DM, Huy NT, Hamano S, Hirayama K. Tacrolimus prevents murine cerebral malaria. Immunology 2016; 150:155-161. [PMID: 27546479 DOI: 10.1111/imm.12661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/17/2016] [Accepted: 08/18/2016] [Indexed: 11/29/2022] Open
Abstract
Tacrolimus and mycophenolate mofetil are immunosuppressants frequently used in human organ transplantation. Tacrolimus is also reported to inhibit Plasmodium falciparum growth in vitro. Here, we report that tacrolimus prevented the death from cerebral malaria of Plasmodium berghei ANKA-infected C57BL/6J mice, but not their death from malaria due to the high parasitaemia and severe anaemia. The mycophenolate mofetil-treated mice showed higher mortality from cerebral malaria and succumbed to malaria earlier than tacrolimus-treated littermates. Tacrolimus attenuated the infiltration of mononuclear cells including pathogenic CD8+ T cells into the brain. It appears to prevent murine cerebral malaria through the inhibition of cerebral infiltration of CD8+ T cells.
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Affiliation(s)
- Lam Quoc Bao
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.,Department of Parasitology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Dang My Nhi
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Nguyen Tien Huy
- Department of Clinical Product Development, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Shinjiro Hamano
- Department of Parasitology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
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Nhi DM, Huy NT, Ohyama K, Kimura D, Lan NTP, Uchida L, Thuong NV, Nhon CTM, Phuc LH, Mai NT, Mizukami S, Bao LQ, Doan NN, Binh NVT, Quang LC, Karbwang J, Yui K, Morita K, Huong VTQ, Hirayama K. A Proteomic Approach Identifies Candidate Early Biomarkers to Predict Severe Dengue in Children. PLoS Negl Trop Dis 2016; 10:e0004435. [PMID: 26895439 PMCID: PMC4764501 DOI: 10.1371/journal.pntd.0004435] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 01/14/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Severe dengue with severe plasma leakage (SD-SPL) is the most frequent of dengue severe form. Plasma biomarkers for early predictive diagnosis of SD-SPL are required in the primary clinics for the prevention of dengue death. METHODOLOGY Among 63 confirmed dengue pediatric patients recruited, hospital based longitudinal study detected six SD-SPL and ten dengue with warning sign (DWS). To identify the specific proteins increased or decreased in the SD-SPL plasma obtained 6-48 hours before the shock compared with the DWS, the isobaric tags for relative and absolute quantification (iTRAQ) technology was performed using four patients each group. Validation was undertaken in 6 SD-SPL and 10 DWS patients. PRINCIPAL FINDINGS Nineteen plasma proteins exhibited significantly different relative concentrations (p<0.05), with five over-expressed and fourteen under-expressed in SD-SPL compared with DWS. The individual protein was classified to either blood coagulation, vascular regulation, cellular transport-related processes or immune response. The immunoblot quantification showed angiotensinogen and antithrombin III significantly increased in SD-SPL whole plasma of early stage compared with DWS subjects. Even using this small number of samples, antithrombin III predicted SD-SPL before shock occurrence with accuracy. CONCLUSION Proteins identified here may serve as candidate predictive markers to diagnose SD-SPL for timely clinical management. Since the number of subjects are small, so further studies are needed to confirm all these biomarkers.
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Affiliation(s)
- Dang My Nhi
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Nguyen Tien Huy
- Department of Clinical Product Development, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- * E-mail: (NTH); (KH)
| | - Kaname Ohyama
- Department of Environmental and Pharmaceutical Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Nagasaki University Research Centre for Genomic Instability and Carcinogenesis (NRGIC), Nagasaki, Japan
| | - Daisuke Kimura
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Nguyen Thi Phuong Lan
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Leo Uchida
- Department of Virology, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Nguyen Van Thuong
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | | | - Le Hong Phuc
- Nguyen Dinh Chieu Hospital, Ben Tre Province, Vietnam
| | - Nguyen Thi Mai
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Shusaku Mizukami
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Lam Quoc Bao
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | | | | | - Luong Chan Quang
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Juntra Karbwang
- Department of Clinical Product Development, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Katsuyuki Yui
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Vu Thi Que Huong
- Department of Immunology and Microbiology, Pasteur Institute, Ho Chi Minh City, Vietnam
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), and Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- * E-mail: (NTH); (KH)
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Mangione JNA, Huy NT, Lan NTP, Mbanefo EC, Ha TTN, Bao LQ, Nga CTP, Tuong VV, Dat TV, Thuy TT, Tuan HM, Huong VTQ, Hirayama K. The association of cytokines with severe dengue in children. Trop Med Health 2014; 42:137-44. [PMID: 25589878 PMCID: PMC4253061 DOI: 10.2149/tmh.2014-09] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 07/16/2014] [Indexed: 01/22/2023] Open
Abstract
Background: Dengue virus infection is a major public health problem. A hypothesis put forward for severe dengue is the cytokine storm, a sudden increase in cytokines that induces vascular permeability. Previous studies and our recent meta-analysis showed that IL-6, IL-8, IFNγ, TNFα, VEGF-A and VCAM-1 are associated with dengue shock syndrome. Therefore, in this study we aim to validate the association of these cytokines with severe dengue. Methods & Findings: In a hospital based-case control study in Vietnam, children with dengue fever, other febrile illness and healthy controls were recruited. Dengue virus infection was confirmed by several diagnostic tests. Multiplex immunoassay using Luminex technology was used to measure cytokines simultaneously. A positive association with dengue shock syndrome was found for VCAM-1, whereas a negative association was found for IFNγ. Furthermore, multivariate logistic analysis also showed that VCAM-1 and IFNγ were independently correlated with dengue shock syndrome. Conclusion: IFNγ and VCAM-1 were associated with dengue shock syndrome, although their role in the severe dengue pathogenesis remains unclear. Additional studies are required to shed further light on the function of these cytokines in severe dengue.
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Affiliation(s)
- Julia N A Mangione
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University , 1-12-4 Sakamoto, Nagasaki 852-8523, Japan ; Leiden University Medical Center , C-2-R, P.O. Box 9600, 2300 RC Leiden, the Netherlands
| | - Nguyen Tien Huy
- Department of Clinical Product Development, Institute of Tropical Medicine (NEKKEN), Nagasaki University , 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Nguyen Thi Phuong Lan
- Department of Immunology & Microbiology, Pasteur Institute in Ho Chi Minh City , 167 Pasteur Street, Ho Chi Minh City 70000, Vietnam
| | - Evaristus Chibunna Mbanefo
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University , 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Tran Thi Ngoc Ha
- Laboratory of Arbovirus, Pasteur Institute in Ho Chi Minh City , 167 Pasteur Street, Ho Chi Minh City 70000, Vietnam
| | - Lam Quoc Bao
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University , 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Cao Thi Phi Nga
- Center for Preventive Medicine , 24 Hung Vuong Street, Vinh Long, Ho Chi Minh City 89000, Vietnam
| | - Vo Van Tuong
- Center for Preventive Medicine , 24 Hung Vuong Street, Vinh Long, Ho Chi Minh City 89000, Vietnam
| | - Tran Van Dat
- Center for Preventive Medicine , 24 Hung Vuong Street, Vinh Long, Ho Chi Minh City 89000, Vietnam
| | - Tran Thi Thuy
- Children's Hospital No.2 , 14 Ly Tu Trong street, Ho Chi Minh City 70000, Vietnam
| | - Ha Manh Tuan
- Children's Hospital No.2 , 14 Ly Tu Trong street, Ho Chi Minh City 70000, Vietnam
| | - Vu Thi Que Huong
- Laboratory of Arbovirus, Pasteur Institute in Ho Chi Minh City , 167 Pasteur Street, Ho Chi Minh City 70000, Vietnam
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine (NEKKEN), Nagasaki University , 1-12-4 Sakamoto, Nagasaki 852-8523, Japan ; Program for Leading Graduate Schools, Nagasaki University , 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
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Bao LQ, Huy NT, Kikuchi M, Yanagi T, Senba M, Shuaibu MN, Honma K, Yui K, Hirayama K. CD19(+) B cells confer protection against experimental cerebral malaria in semi-immune rodent model. PLoS One 2013; 8:e64836. [PMID: 23724100 PMCID: PMC3665539 DOI: 10.1371/journal.pone.0064836] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 04/19/2013] [Indexed: 12/31/2022] Open
Abstract
In African endemic area, adults are less vulnerable to cerebral malaria than children probably because of acquired partial immunity or semi-immune status. Here, we developed an experimental cerebral malaria (ECM) model for semi-immune mice. C57BL/6 (B6) mice underwent one, two and three cycles of infection and radical treatment (1-cure, 2-cure and 3-cure, respectively) before being finally challenged with 104Plasmodium berghei ANKA without treatment. Our results showed that 100% of naïve (0-cure), 67% of 1-cure, 37% of 2-cure and none of 3-cure mice succumbed to ECM within 10 days post challenge infection. In the protected 3-cure mice, significantly higher levels of plasma IL-10 and lower levels of IFN-γ than the others on day 7 post challenge infection were observed. Major increased lymphocyte subset of IL-10 positive cells in 3-cure mice was CD5(−)CD19(+) B cells. Passive transfer of splenic CD19(+) cells from 3-cure mice protected naïve mice from ECM. Additionally, aged 3-cure mice were also protected from ECM 12 and 20 months after the last challenge infection. In conclusion, mice became completely resistant to ECM after three exposures to malaria. CD19(+) B cells are determinants in protective mechanism of semi-immune mice against ECM possibly via modulatory IL-10 for pathogenic IFN-γ production.
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Affiliation(s)
- Lam Quoc Bao
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Global Center of Excellence (GCOE), Nagasaki University, Nagasaki, Japan
| | - Nguyen Tien Huy
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- * E-mail: (KH); (NTH)
| | - Mihoko Kikuchi
- Center for International Collaborative Research, Nagasaki University, Nagasaki, Japan
| | - Tetsuo Yanagi
- Animal Research Center for Tropical Infections, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Masachika Senba
- Department of Pathology, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Mohammed Nasir Shuaibu
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Global Center of Excellence (GCOE), Nagasaki University, Nagasaki, Japan
| | - Kiri Honma
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Katsuyuki Yui
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Global Center of Excellence (GCOE), Nagasaki University, Nagasaki, Japan
| | - Kenji Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Global Center of Excellence (GCOE), Nagasaki University, Nagasaki, Japan
- * E-mail: (KH); (NTH)
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