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Araujo S, Mabille D, Garcia AB, Caljon G. A breath of fresh air: impact of insect-borne protozoan parasites on the respiratory system. Trends Parasitol 2024:S1471-4922(24)00168-5. [PMID: 39013660 DOI: 10.1016/j.pt.2024.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 07/18/2024]
Abstract
The protozoan parasites Plasmodium, Leishmania, and Trypanosoma are transmitted by hematophagous insects and cause severe diseases in humans. These infections pose a global threat, particularly in low-resource settings, and are increasingly extending beyond the current endemic regions. Tropism of parasites is crucial for their development, and recent studies have revealed colonization of noncanonical tissues, aiding their survival and immune evasion. Despite receiving limited attention, cumulative evidence discloses the respiratory system as a significant interface for host-pathogen interactions, influencing the course of (co)infection and disease onset. Due to its pathophysiological and clinical implications, we emphasize that further research is needed to better understand the involvement of the respiratory system and its potential to improve prevention, diagnosis, treatment, and interruption of the chain of transmission.
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Affiliation(s)
- Sergio Araujo
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Wilrijk, Belgium
| | - Dorien Mabille
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Wilrijk, Belgium
| | - Alvaro Baeza Garcia
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Wilrijk, Belgium
| | - Guy Caljon
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Wilrijk, Belgium.
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Batista-Dantas FE, Ozaki CY, Santana KG, Nunes VS, Uscata BA, Siess-Portugal C, Reis LC, Yamashiro-Kanashiro EH, Tafuri WL, Duarte-Neto AN, Sotto MN, Goto H, Cazita PM. The impact of cholesteryl ester transfer protein on the progression of cutaneous leishmaniasis. Front Immunol 2024; 15:1389551. [PMID: 38966642 PMCID: PMC11222338 DOI: 10.3389/fimmu.2024.1389551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/08/2024] [Indexed: 07/06/2024] Open
Abstract
Introduction Pathogenesis of cutaneous leishmaniases involves parasite growth, persistent inflammation, and likely participation of lipoproteins (LP). The cholesteryl ester transfer protein (CETP), involved in LP remodeling, has been shown to participate in the inflammatory response and the evolution of infectious conditions. Methods We evaluated the impact of the presence of CETP on infection by Leishmania (L.) amazonensis in an experimental model of cutaneous leishmaniasis using C57BL6/J mice transgenic for human CETP (CETP), having as control their littermates that do not express the protein, wild-type (WT) mice. The progression of the lesion after infection in the footpad was monitored for 12 weeks. Two groups of animals were formed to collect the plantar pad in the 4th and 12th week post-infection. Results The lesion increased from the 3rd week onwards, in both groups, with a gradual decrease from the 10th week onwards in the CETP group compared to the WT group, showing a reduction in parasitism and an improvement in the healing process, a reduction in CD68+ cells, and an increase in CD163+ and CD206, characterizing a population of M2 macrophages. A reduction in ARG1+ cells and an increase in INOS+ cells were observed. During infection, the LP profile showed an increase in triglycerides in the VLDL fraction in the CETP group at 12 weeks. Gene expression revealed a decrease in the CD36 receptor in the CETP group at 12 weeks, correlating with healing and parasite reduction. In vitro, macrophages derived from bone marrow cells from CETP mice showed lower parasite load at 48 h and, a reduction in arginase activity at 4 h accompanied by increased NO production at 4 and 24 h compared to WT macrophages, corroborating the in vivo findings. Discussion The data indicate that the presence of CETP plays an important role in resolving Leishmania (L.) amazonensis infection, reducing parasitism, and modulating the inflammatory response in controlling infection and tissue repair.
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Affiliation(s)
- Francisca Elda Batista-Dantas
- Laboratorio de Lipides (LIM10), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Christiane Yumi Ozaki
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Kelly Gomes Santana
- Laboratorio de Lipides (LIM10), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Valéria Sutti Nunes
- Laboratorio de Lipides (LIM10), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Bernardina Amorin Uscata
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Cinthia Siess-Portugal
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Luiza Campos Reis
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Facultad de Medicina, Universidad Nacional Toribio Rodriguez de Mendoza de Amazonas, Chachapoyas, Peru
| | | | - Wagner Luiz Tafuri
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Amaro Nunes Duarte-Neto
- Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Mirian Nacagami Sotto
- Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Hiro Goto
- Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Patrícia Miralda Cazita
- Laboratorio de Lipides (LIM10), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
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Carvalho Cabral P, Stegeman SK, Olivier M, Cermakian N. Circadian Regulation of Leishmania Parasite Internalisation in Macrophages and Downstream Cellular Events. Parasite Immunol 2024; 46:e13053. [PMID: 38817112 DOI: 10.1111/pim.13053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 06/01/2024]
Abstract
Leishmania spp. parasites use macrophages as a host cell during infection. As a result, macrophages have a dual role: clearing the parasite as well as acting as host cells. Recently, studies have shown that macrophages harbour circadian clocks, which affect many of their functions such as phagocytosis, receptor expression and cytokine release. Interestingly, Leishmania major infection in hosts was also shown to be under circadian control. Therefore, we decided to investigate what underlies the rhythms of L. major infection within macrophages. Using a culture model of infection of bone marrow-derived macrophages with L. major promastigotes, we show that the parasites are internalised into macrophages with a 24-h variation dependent on a functional circadian clock in the cells. This was associated with a variation in the number of parasites per macrophage. The cell surface expression of parasite receptors was not controlled by the cells' circadian clock. In contrast, the expression of the components of the endocytic pathway, EEA1 and LC3b, varied according to the time of infection. This was paralleled by variations in parasite-induced ROS production as well as cytokine tumour necrosis factor α. In summary, we have uncovered a time-dependent regulation of the internalisation of L. major promastigotes in macrophages, controlled by the circadian clock in these cells, as well as subsequent cellular events in the endocytic pathway, intracellular signalling and cytokine production.
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Affiliation(s)
| | - Sophia K Stegeman
- Douglas Research Centre, McGill University, Montreal, Quebec, Canada
| | - Martin Olivier
- Research Institute of the McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Nicolas Cermakian
- Douglas Research Centre, McGill University, Montreal, Quebec, Canada
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Bamorovat M, Sharifi I, Shafiei Bafti M, Agha Kuchak Afshari S, Aflatoonian MR, Karamoozian A, Jafarzadeh A, Amirzadeh R, Khosravi A, Babaei Z, Safa F, Sharifi F, Heshmatkhah A. Cutaneous Leishmaniasis Hampers COVID-19: A Controlled Cross-Sectional Study in High-Burden Endemic Areas of Iran. J Epidemiol Glob Health 2024; 14:142-153. [PMID: 38190050 PMCID: PMC11043327 DOI: 10.1007/s44197-023-00179-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/06/2023] [Indexed: 01/09/2024] Open
Abstract
INTRODUCTION Emerging infectious diseases such as SARS-CoV-2 can cause pandemics and create a critical risk for humans. In a previous pilot study, we reported that the immunological responses induced by cutaneous leishmaniasis (CL) could decrease the incidence and severity of COVID-19. In this large-scale case-control study, we assessed the possible relationship between mortality and morbidity of COVID-19 in healed CL persons suffering scars compared to cases without CL history. METHODS This controlled cross-sectional study was conducted between July 2020 and December 2022 in the endemic and high-burden areas of CL in southeastern Iran. In the study, 1400 previous CL cases with scars and 1,521,329 subjects who had no previous CL were analyzed. We used R 4.0.2 to analyze the data. Firth's bias reduction approach corresponding to the penalization of likelihood logistic regression by Jeffreys was also employed to influence the variables in the dataset. Also, a Bayesian ordinal logistic regression model was performed to explore the COVID-19 severity in both case and referent groups. RESULTS The occurrence and severity rate of COVID-19 in CL scar cases are significantly less than in the non-CL control group, while in the CL scar subjects, patients with critical conditions and mortality were not observed. The morbidity (OR = 0.11, CI 0.06-0.20 and P < 0.001) and severity of COVID-19 in previous cases with CL scars were significantly diminished than that in the control group (credible interval - 2.57, - 1.62). CONCLUSIONS The results represented a durable negative relationship between cured CL and COVID-19 incidence and severity. Additional studies seem necessary and should be designed to further validate the true impact and underlying mechanistic action of CL on COVID-19.
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Affiliation(s)
- Mehdi Bamorovat
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Iraj Sharifi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | - Mehdi Shafiei Bafti
- Institute for Studies in Medicine History, Persian and Complementary Medicine, Iran University of Medical Sciences, Tehran, Iran
- Deputy for Health, Kerman University of Medical Sciences, Kerman, Iran
| | | | | | - Ali Karamoozian
- Research Center for Modeling in Health, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Abdollah Jafarzadeh
- Department of Immunology, Kerman University of Medical Sciences, Kerman, Iran
| | - Raheleh Amirzadeh
- Research Center for Social Determinants of Health, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Ahmad Khosravi
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Babaei
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Farzane Safa
- Deputy for Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Fatemeh Sharifi
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
| | - Amireh Heshmatkhah
- Dadbin Health Clinic, Kerman University of Medical Sciences, Kerman, Iran
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