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Kochanowsky JA, Mira PM, Elikaee S, Muratore K, Rai AK, Riestra AM, Johnson PJ. Trichomonas vaginalis extracellular vesicles up-regulate and directly transfer adherence factors promoting host cell colonization. Proc Natl Acad Sci U S A 2024; 121:e2401159121. [PMID: 38865261 PMCID: PMC11194581 DOI: 10.1073/pnas.2401159121] [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: 01/31/2024] [Accepted: 05/16/2024] [Indexed: 06/14/2024] Open
Abstract
Trichomonas vaginalis, a common sexually transmitted parasite that colonizes the human urogenital tract, secretes extracellular vesicles (TvEVs) that are taken up by human cells and are speculated to be taken up by parasites as well. While the crosstalk between TvEVs and human cells has led to insight into host:parasite interactions, roles for TvEVs in infection have largely been one-sided, with little known about the effect of TvEV uptake by T. vaginalis. Approximately 11% of infections are found to be coinfections of multiple T. vaginalis strains. Clinical isolates often differ in their adherence to and cytolysis of host cells, underscoring the importance of understanding the effects of TvEV uptake within the parasite population. To address this question, our lab tested the ability of a less adherent strain of T. vaginalis, G3, to take up fluorescently labeled TvEVs derived from both itself (G3-EVs) and TvEVs from a more adherent strain of the parasite (B7RC2-EVs). Here, we showed that TvEVs generated from the more adherent strain are internalized more efficiently compared to the less adherent strain. Additionally, preincubation of G3 parasites with B7RC2-EVs increases parasite aggregation and adherence to host cells. Transcriptomics revealed that TvEVs up-regulate expression of predicted parasite membrane proteins and identified an adherence factor, heteropolysaccharide binding protein (HPB2). Finally, using comparative proteomics and superresolution microscopy, we demonstrated direct transfer of an adherence factor, cadherin-like protein, from TvEVs to the recipient parasite's surface. This work identifies TvEVs as a mediator of parasite:parasite communication that may impact pathogenesis during mixed infections.
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Affiliation(s)
- Joshua A. Kochanowsky
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Portia M. Mira
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Samira Elikaee
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Katherine Muratore
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Anand Kumar Rai
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
| | - Angelica M. Riestra
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
- Department of Biology, San Diego State University, San Diego, CA92182
| | - Patricia J. Johnson
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA90095
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2
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Feix AS, Tabaie EZ, Singh AN, Wittenberg NJ, Wilson EH, Joachim A. An in-depth exploration of the multifaceted roles of EVs in the context of pathogenic single-cell microorganisms. Microbiol Mol Biol Rev 2024:e0003724. [PMID: 38869292 DOI: 10.1128/mmbr.00037-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024] Open
Abstract
SUMMARYExtracellular vesicles (EVs) have been recognized throughout scientific communities as potential vehicles of intercellular communication in both eukaryotes and prokaryotes, thereby influencing various physiological and pathological functions of both parent and recipient cells. This review provides an in-depth exploration of the multifaceted roles of EVs in the context of bacteria and protozoan parasite EVs, shedding light on their contributions to physiological processes and disease pathogenesis. These studies highlight EVs as a conserved mechanism of cellular communication, which may lead us to important breakthroughs in our understanding of infection, mechanisms of pathogenesis, and as indicators of disease. Furthermore, EVs are involved in host-microbe interactions, offering insights into the strategies employed by bacteria and protozoan parasites to modulate host responses, evade the immune system, and establish infections.
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Affiliation(s)
- Anna Sophia Feix
- Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Emily Z Tabaie
- Division of Biomedical Sciences, University of California, Riverside, California, USA
| | - Aarshi N Singh
- Department of Chemistry, Lehigh University, Bethlehem, Pennsylvania, USA
| | | | - Emma H Wilson
- Division of Biomedical Sciences, University of California, Riverside, California, USA
| | - Anja Joachim
- Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
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3
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Makusheva Y, Goncharova E, Bets V, Korel A, Arzhanova E, Litvinova E. Restoration of Lactobacillus johnsonii and Enterococcus faecalis Caused the Elimination of Tritrichomonas sp. in a Model of Antibiotic-Induced Dysbiosis. Int J Mol Sci 2024; 25:5090. [PMID: 38791132 PMCID: PMC11120941 DOI: 10.3390/ijms25105090] [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: 03/29/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a multifactorial disease involving the interaction of the gut microbiota, genes, host immunity, and environmental factors. Dysbiosis in IBD is associated with pathobiont proliferation, so targeted antibiotic therapy is a rational strategy. When restoring the microbiota with probiotics, it is necessary to take into account the mutual influence of co-cultivated microorganisms, as the microbiota is a dynamic community of species that mediates homeostasis and physiological processes in the intestine. The aim of our study was to investigate the recovery efficacy of two potential probiotic bacteria, L. johnsonii and E. faecalis, in Muc2-/- mice with impaired mucosal layer. Two approaches were used to determine the efficacy of probiotic supplementation in mice with dysbiosis caused by mucin-2 deficiency: bacterial seeding on selective media and real-time PCR analysis. The recovery time and the type of probiotic bacteria relocated affected only the number of E. faecalis. A significant positive correlation was found between colony-forming unit (CFU) and the amount of E. faecalis DNA in the group that was replanted with probiotic E. faecalis. As for L. johnsonii, it could be restored to its original level even without any additional bacteria supplementation after two weeks. Interestingly, the treatment of mice with L. johnsonii caused a decrease in the amount of E. faecalis. Furthermore, either L. johnsonii or E. faecalis treatment eliminated protozoan overgrowth caused by antibiotic administration.
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Affiliation(s)
- Yulia Makusheva
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (Y.M.); (E.G.); (V.B.); (A.K.)
| | - Elena Goncharova
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (Y.M.); (E.G.); (V.B.); (A.K.)
| | - Victoria Bets
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (Y.M.); (E.G.); (V.B.); (A.K.)
| | - Anastasya Korel
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (Y.M.); (E.G.); (V.B.); (A.K.)
| | - Elena Arzhanova
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia;
| | - Ekaterina Litvinova
- Faculty of Physical Engineering, Novosibirsk State Technical University, 630073 Novosibirsk, Russia; (Y.M.); (E.G.); (V.B.); (A.K.)
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Moore KA, Petersen AP, Zierden HC. Microorganism-derived extracellular vesicles: emerging contributors to female reproductive health. NANOSCALE 2024; 16:8216-8235. [PMID: 38572613 DOI: 10.1039/d3nr05524h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Extracellular vesicles (EVs) are cell-derived nanoparticles that carry small molecules, nucleic acids, and proteins long distances in the body facilitating cell-cell communication. Microorganism-derived EVs mediate communication between parent cells and host cells, with recent evidence supporting their role in biofilm formation, horizontal gene transfer, and suppression of the host immune system. As lipid-bound bacterial byproducts, EVs demonstrate improved cellular uptake and distribution in vivo compared to cell-free nucleic acids, proteins, or small molecules, allowing these biological nanoparticles to recapitulate the effects of parent cells and contribute to a range of human health outcomes. Here, we focus on how EVs derived from vaginal microorganisms contribute to gynecologic and obstetric outcomes. As the composition of the vaginal microbiome significantly impacts women's health, we discuss bacterial EVs from both healthy and dysbiotic vaginal microbiota. We also examine recent work done to evaluate the role of EVs from common vaginal bacterial, fungal, and parasitic pathogens in pathogenesis of female reproductive tract disease. We highlight evidence for the role of EVs in women's health, gaps in current knowledge, and opportunities for future work. Finally, we discuss how leveraging the innate interactions between microorganisms and mammalian cells may establish EVs as a novel therapeutic modality for gynecologic and obstetric indications.
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Affiliation(s)
- Kaitlyn A Moore
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.
| | - Alyssa P Petersen
- Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Hannah C Zierden
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA.
- Department of Chemical & Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
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5
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Menezes SA, Tasca T. Extracellular vesicles in parasitic diseases - from pathogenesis to future diagnostic tools. Microbes Infect 2024; 26:105310. [PMID: 38316376 DOI: 10.1016/j.micinf.2024.105310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/07/2024]
Abstract
Parasitic diseases are still a major public health problem especially among individuals of low socioeconomic status in underdeveloped countries. In recent years it has been demonstrated that parasites can release extracellular vesicles that participate in the host-parasite communication, immune evasion, and in governing processes associated with host infection. Extracellular vesicles are membrane-bound structures released into the extracellular space that can carry several types of biomolecules, including proteins, lipids, nucleic acids, and metabolites, which directly impact the target cells. Extracellular vesicles have attracted wide attention due to their relevance in host-parasite communication and for their potential value in applications such as in the diagnostic biomarker discovery. This review of the literature aimed to join the current knowledge on the role of extracellular vesicles in host-parasite interaction and summarize its molecular content, providing information for the acquisition of new tools that can be used in the diagnosis of parasitic diseases. These findings shed light to the potential of extracellular vesicle cargo derived from protozoan parasites as novel diagnostic tools.
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Affiliation(s)
- Saulo Almeida Menezes
- Faculdade de Farmácia e Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, RS, Brazil.
| | - Tiana Tasca
- Faculdade de Farmácia e Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, RS, Brazil.
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Ong SC, Luo HW, Cheng WH, Ku FM, Tsai CY, Huang PJ, Lee CC, Yeh YM, Lin R, Chiu CH, Tang P. The core exosome proteome of Trichomonas vaginalis. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2024; 57:246-256. [PMID: 38383245 DOI: 10.1016/j.jmii.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/15/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Trichomonas vaginalis is parasitic protozoan that causes human urogenital infections. Accumulated reports indicated that exosomes released by this parasite play a crucial role in transmitting information and substances between cells during host-parasite interactions. Current knowledge on the protein contents in T. vaginalis exosome is mainly generated from three previous studies that used different T. vaginalis isolates as an experimental model. Whether T. vaginalis exosomes comprise a common set of proteins (core exosome proteome) is still unclear. METHODS To explore the core exosome proteome in T. vaginalis, we used liquid chromatography-tandem mass spectrometry (LC-MS/MS) to identify the contents of sucrose ultracentrifugation-enriched exosome and supernatant fractions isolated from six isolates. RESULTS Transmission electron microscopy (TEM) confirmed the presence of exosomes in the enriched fraction. Proteomic analysis identified a total of 1870 proteins from exosomal extracts. There were 1207 exosomal-specific proteins after excluding 436 'non-core exosomal proteins'. Among these, 72 common exosomal-specific proteins were expressed in all six isolates. Compared with three published T. vaginalis exosome proteome datasets, we identified 16 core exosomal-specific proteins. These core exosomal-specific proteins included tetraspanin (TvTSP1), the classical exosome marker, and proteins mainly involved in catalytic activity and binding such as ribosomal proteins, ras-associated binding (Rab) proteins, and heterotrimeric G proteins. CONCLUSIONS Our study highlighted the importance of using supernatant fraction from exosomal extract as a control to eliminate 'non-core exosomal proteins'. We compiled a reference core exosome proteome of T. vaginalis, which is essential for developing a fundamental understanding of exosome-mediated cell communication and host-parasite interaction.
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Affiliation(s)
- Seow-Chin Ong
- Department of Parasitology, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan.
| | - Hong-Wei Luo
- Department of Parasitology, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan.
| | - Wei-Hung Cheng
- Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan City, Taiwan.
| | - Fu-Man Ku
- Department of Parasitology, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan.
| | - Chih-Yu Tsai
- Department of Parasitology, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan.
| | - Po-Jung Huang
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan; Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Chi-Ching Lee
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Computer Science and Information Engineering, College of Engineering, Chang Gung University, Guishan District, Taoyuan City, Taiwan.
| | - Yuan-Ming Yeh
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Rose Lin
- Department of Parasitology, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan.
| | - Cheng-Hsun Chiu
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Petrus Tang
- Department of Parasitology, College of Medicine, Chang Gung University, Guishan District, Taoyuan City, Taiwan; Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.
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7
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Santana de Andrade JC, Benchimol M, de Souza W. Stimulation of microvesicle secretion in Trichomonas vaginalis. Exp Parasitol 2024; 259:108722. [PMID: 38395187 DOI: 10.1016/j.exppara.2024.108722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/03/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
Trichomonas vaginalis is an extracellular flagellate protozoan and the etiological agent of human trichomoniasis, a sexually transmitted infection (STI) with a high incidence. Several reports have shown that this protozoan releases microvesicles into the culture medium, which show high potential in modulating cell-to-cell communication and the host response to infections. However, the biogenesis of these vesicles has not been analyzed in detail. In the present study, high-resolution ion scanning microscopy (SEM) and transmission electron microscopy (TEM) were used to analyze the surface of control cells and cells incubated in the presence of Ca2+ alone or with A 23187 calcium ionophore. Two different strains of T. vaginalis were analyzed. Most control cells displayed relatively smooth surfaces, whereas cells incubated with Ca2+ had many surface projections of variable shape and size (from 40 nm to around 1 μm). Quantitative analyses were performed directly in the scanning electron microscope and showed a significant increase in the number of cells with surface projections after incubation in the presence of calcium. TEM showed that treated cells presented several cytoplasmic multivesicular structures, suggesting membrane fusion and exosomes in the extracellular medium. The amount and size of the released vesicles were quantitatively analyzed using light scattering and TEM on negatively stained samples. The observations show that incubation of both parasite strains in the presence of Ca2+ significantly increased the release of microvesicles into the extracellular medium in a time-dependent process. Sequential incubation in the presence of Ca2+ and the calcium ionophore A23187 increases the presence of vesicles on the parasite surface only at a short incubation time (5 min). Transmission electron microscopy showed that at least part of the vesicles are originated from cytoplasmic multivesicular structures. This information contributes to a better understanding of the biogenesis of extracellular vesicles secreted by T. vaginalis.
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Affiliation(s)
- Júlio César Santana de Andrade
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Centro de Pesquisa em Medicina de Precisão, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-901, Brazil; BIOTRANS-CAXIAS, Universidade do Grande Rio. UNIGRANRIO, Rio de Janeiro, 96200-000, Brazil.
| | - Marlene Benchimol
- BIOTRANS-CAXIAS, Universidade do Grande Rio. UNIGRANRIO, Rio de Janeiro, 96200-000, Brazil; Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagens e Centro Nacional de Biologia Estrutural e Bioimagens, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-901, Brazil.
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Centro de Pesquisa em Medicina de Precisão, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-901, Brazil; Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagens e Centro Nacional de Biologia Estrutural e Bioimagens, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-901, Brazil.
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8
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Dolatshahi M, Bahrami AR, Sheikh QI, Ghanbari M, Matin MM. Gastric cancer and mesenchymal stem cell-derived exosomes: from pro-tumorigenic effects to anti-cancer vehicles. Arch Pharm Res 2024; 47:1-19. [PMID: 38151649 DOI: 10.1007/s12272-023-01477-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/15/2023] [Indexed: 12/29/2023]
Abstract
Gastric cancer (GC) is one of the most prevalent malignancies in the world, with a high mortality rate in both women and men. Conventional treatments, like chemotherapy, radiotherapy and surgery, are facing some drawbacks like acquired drug resistance and various side effects, leading to cancer recurrence and increased morbidity; thus, development of novel approaches in targeted therapy would be very beneficial. Exosomes, extracellular vesicles with a size distribution of sub-150 nm, interplay in physiological and pathophysiological cell-cell communications and can pave the way for targeted cancer therapy. Accumulating pieces of evidence have indicated that exosomes derived from mesenchymal stem cells (MSC-EXs) can act as a double-edged sword in some cancers. The purpose of this review is to assess the differences between stem cell therapy and exosome therapy. Moreover, our aim is to demonstrate how naïve MSCs transform into GC-MSCs in the tumor microenvironment. Additionally, the tumorigenic and anti-proliferation effects of MSC-EXs derived from different origins were investigated. Finally, we suggest potential modifications and combination options that involve utilizing MSC-EXs from the foreskin and umbilical cord as promising sources to enhance the efficacy of gastric cancer treatment. This approach is presented in contrast to bone marrow cells, which are more heterogeneous, age-related, and are also easily affected by the patient's circulation system.
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Affiliation(s)
- Maryam Dolatshahi
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ahmad Reza Bahrami
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Qaiser Iftikhar Sheikh
- School of Biosciences, Western Bank, Firth Court, University of Sheffield, Sheffield, S10 2TN, England, UK
| | - Mohsen Ghanbari
- Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran.
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Chen YJ, Wu KY, Lin SF, Huang SH, Hsu HC, Hsu HM. PIP2 regulating calcium signal modulates actin cytoskeleton-dependent cytoadherence and cytolytic capacity in the protozoan parasite Trichomonas vaginalis. PLoS Pathog 2023; 19:e1011891. [PMID: 38109416 PMCID: PMC10758264 DOI: 10.1371/journal.ppat.1011891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 01/01/2024] [Accepted: 12/08/2023] [Indexed: 12/20/2023] Open
Abstract
Trichomonas vaginalis is a prevalent causative agent that causes trichomoniasis leading to uropathogenic inflammation in the host. The crucial role of the actin cytoskeleton in T. vaginalis cytoadherence has been established but the associated signaling has not been fully elucidated. The present study revealed that the T. vaginalis second messenger PIP2 is located in the recurrent flagellum of the less adherent isolate and is more abundant around the cell membrane of the adherent isolates. The T. vaginalis phosphatidylinositol-4-phosphate 5-kinase (TvPI4P5K) with conserved activity phosphorylating PI(4)P to PI(4, 5)P2 was highly expressed in the adherent isolate and partially colocalized with PIP2 on the plasma membrane but with discrete punctate signals in the cytoplasm. Plasma membrane PIP2 degradation by phospholipase C (PLC)-dependent pathway concomitant with increasing intracellular calcium during flagellate-amoeboid morphogenesis. This could be inhibited by Edelfosine or BAPTA simultaneously repressing parasite actin assembly, morphogenesis, and cytoadherence with inhibitory effects similar to the iron-depleted parasite, supporting the significance of PIP2 and iron in T. vaginalis colonization. Intriguingly, iron is required for the optimal expression and cell membrane trafficking of TvPI4P5K for in situ PIP2 production, which was diminished in the iron-depleted parasites. TvPI4P5K-mediated PIP2 signaling may coordinate with iron to modulate T. vaginalis contact-dependent cytolysis to influence host cell viability. These observations provide novel insights into T. vaginalis cytopathogenesis during the host-parasite interaction.
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Affiliation(s)
- Yen-Ju Chen
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Kuan-Yi Wu
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shu-Fan Lin
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Sung-Hsi Huang
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Heng-Cheng Hsu
- Department of Obstetrics and Gynecology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Surgery, National Taiwan University Cancer Center, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hong-Ming Hsu
- Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
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10
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Ortiz SFDN, Verdan R, Fortes FDSDA, Benchimol M. Trichomonas vaginalis: Monolayer and Cluster Formation-Ultrastructural Aspects Using High-Resolution Scanning Electron Microscopy. Pathogens 2023; 12:1381. [PMID: 38133266 PMCID: PMC10747464 DOI: 10.3390/pathogens12121381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/12/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Trichomonas vaginalis is an extracellular protozoan parasite that causes human trichomoniasis, a sexually transmitted infection (STI) that affects approximately 270 million people worldwide. The phenomenon of T. vaginalis adhesion to inert substrates has been described in several reports. Still, very few studies on cluster formation have been conducted, and more detailed analyses of the contact regions between the parasites' membranes in these aggregate formations have not been carried out. The present study aims to show that T. vaginalis forms a tight monolayer, similar to an epithelium, with parasites firmly adhered to the culture flask bottom by interdigitations and in the absence of host cells. In addition, we analyzed and compared the formation of the clusters, focusing on parasite aggregates that float in the culture flasks. We employed various imaging techniques, including high-resolution scanning electron microscopy, transmission electron microscopy, cytochemistry, TEM tomography, and dye injection. We analyzed whether the monolayer behaves as an epithelium, analyzing cell junctions, cell communication, and ultrastructural aspects, and concluded that monolayer formation differs from cluster formation in many aspects. The monolayers form strong adhesion, whereas the clusters have fragile attachments. We did not find fusion or the passage of molecules between neighbor-attached cells; there is no need for different strains to form filopodia, cytonemes, and extracellular vesicles during cluster and monolayer formation.
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Affiliation(s)
- Sharmila Fiama das Neves Ortiz
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Centro de Pesquisa em Medicina de Precisão, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil; (S.F.d.N.O.); (R.V.)
| | - Raphael Verdan
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Centro de Pesquisa em Medicina de Precisão, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil; (S.F.d.N.O.); (R.V.)
| | - Fabio da Silva de Azevedo Fortes
- BIOTRANS-CAXIAS Campus, Universidade do Grande Rio, UNIGRANRIO, Rio de Janeiro 96200-000, Brazil;
- Laboratório de Terapia e Fisiologia Celular e Molecular, Departamento de Biologia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 23070-200, Brazil
| | - Marlene Benchimol
- BIOTRANS-CAXIAS Campus, Universidade do Grande Rio, UNIGRANRIO, Rio de Janeiro 96200-000, Brazil;
- Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagens e Centro Nacional de Biologia Estrutural e Bioimagens, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
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11
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Sierra-López F, Castelan-Ramírez I, Hernández-Martínez D, Salazar-Villatoro L, Segura-Cobos D, Flores-Maldonado C, Hernández-Ramírez VI, Villamar-Duque TE, Méndez-Cruz AR, Talamás-Rohana P, Omaña-Molina M. Extracellular Vesicles Secreted by Acanthamoeba culbertsoni Have COX and Proteolytic Activity and Induce Hemolysis. Microorganisms 2023; 11:2762. [PMID: 38004773 PMCID: PMC10673465 DOI: 10.3390/microorganisms11112762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Several species of Acanthamoeba genus are potential pathogens and etiological agents of several diseases. The pathogenic mechanisms carried out by these amoebae in different target tissues have been documented, evidencing the relevant role of contact-dependent mechanisms. With the purpose of describing the pathogenic processes carried out by these protozoans more precisely, we considered it important to determine the emission of extracellular vesicles (EVs) as part of the contact-independent pathogenicity mechanisms of A. culbertsoni, a highly pathogenic strain. Through transmission electronic microscopy (TEM) and nanoparticle tracking analysis (NTA), EVs were characterized. EVs showed lipid membrane and a size between 60 and 855 nm. The secretion of large vesicles was corroborated by confocal and TEM microscopy. The SDS-PAGE of EVs showed proteins of 45 to 200 kDa. Antigenic recognition was determined by Western Blot, and the internalization of EVs by trophozoites was observed through Dil-labeled EVs. In addition, some EVs biological characteristics were determined, such as proteolytic, hemolytic and COX activity. Furthermore, we highlighted the presence of leishmanolysin in trophozites and EVs. These results suggest that EVs are part of a contact-independent mechanism, which, together with contact-dependent ones, allow for a better understanding of the pathogenicity carried out by Acanthamoeba culbertsoni.
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Affiliation(s)
- Francisco Sierra-López
- Laboratory of Amphizoic Amoebae, Faculty of Superior Studies Iztacala, Medicine, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico (I.C.-R.); (D.H.-M.); (D.S.-C.); (A.R.M.-C.)
| | - Ismael Castelan-Ramírez
- Laboratory of Amphizoic Amoebae, Faculty of Superior Studies Iztacala, Medicine, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico (I.C.-R.); (D.H.-M.); (D.S.-C.); (A.R.M.-C.)
| | - Dolores Hernández-Martínez
- Laboratory of Amphizoic Amoebae, Faculty of Superior Studies Iztacala, Medicine, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico (I.C.-R.); (D.H.-M.); (D.S.-C.); (A.R.M.-C.)
| | - Lizbeth Salazar-Villatoro
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies, National Polytechnic Institute (IPN), Mexico City 07360, Mexico; (L.S.-V.); (V.I.H.-R.); (P.T.-R.)
| | - David Segura-Cobos
- Laboratory of Amphizoic Amoebae, Faculty of Superior Studies Iztacala, Medicine, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico (I.C.-R.); (D.H.-M.); (D.S.-C.); (A.R.M.-C.)
| | - Catalina Flores-Maldonado
- Department of Physiology, Biophysics and Neurosciences, Center for Research and Advanced Studies, National Polytechnic Institute (IPN), Mexico City 07360, Mexico;
| | - Verónica Ivonne Hernández-Ramírez
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies, National Polytechnic Institute (IPN), Mexico City 07360, Mexico; (L.S.-V.); (V.I.H.-R.); (P.T.-R.)
| | - Tomás Ernesto Villamar-Duque
- General Biotery, Faculty of Superior Studies Iztacala, Biology, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico;
| | - Adolfo René Méndez-Cruz
- Laboratory of Amphizoic Amoebae, Faculty of Superior Studies Iztacala, Medicine, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico (I.C.-R.); (D.H.-M.); (D.S.-C.); (A.R.M.-C.)
| | - Patricia Talamás-Rohana
- Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies, National Polytechnic Institute (IPN), Mexico City 07360, Mexico; (L.S.-V.); (V.I.H.-R.); (P.T.-R.)
| | - Maritza Omaña-Molina
- Laboratory of Amphizoic Amoebae, Faculty of Superior Studies Iztacala, Medicine, National Autonomous University of Mexico (UNAM), Tlalnepantla 54090, Mexico (I.C.-R.); (D.H.-M.); (D.S.-C.); (A.R.M.-C.)
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12
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Fernandez‐Becerra C, Xander P, Alfandari D, Dong G, Aparici‐Herraiz I, Rosenhek‐Goldian I, Shokouhy M, Gualdron‐Lopez M, Lozano N, Cortes‐Serra N, Karam PA, Meneghetti P, Madeira RP, Porat Z, Soares RP, Costa AO, Rafati S, da Silva A, Santarém N, Fernandez‐Prada C, Ramirez MI, Bernal D, Marcilla A, Pereira‐Chioccola VL, Alves LR, Portillo HD, Regev‐Rudzki N, de Almeida IC, Schenkman S, Olivier M, Torrecilhas AC. Guidelines for the purification and characterization of extracellular vesicles of parasites. JOURNAL OF EXTRACELLULAR BIOLOGY 2023; 2:e117. [PMID: 38939734 PMCID: PMC11080789 DOI: 10.1002/jex2.117] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 08/21/2023] [Accepted: 09/14/2023] [Indexed: 06/29/2024]
Abstract
Parasites are responsible for the most neglected tropical diseases, affecting over a billion people worldwide (WHO, 2015) and accounting for billions of cases a year and responsible for several millions of deaths. Research on extracellular vesicles (EVs) has increased in recent years and demonstrated that EVs shed by pathogenic parasites interact with host cells playing an important role in the parasite's survival, such as facilitation of infection, immunomodulation, parasite adaptation to the host environment and the transfer of drug resistance factors. Thus, EVs released by parasites mediate parasite-parasite and parasite-host intercellular communication. In addition, they are being explored as biomarkers of asymptomatic infections and disease prognosis after drug treatment. However, most current protocols used for the isolation, size determination, quantification and characterization of molecular cargo of EVs lack greater rigor, standardization, and adequate quality controls to certify the enrichment or purity of the ensuing bioproducts. We are now initiating major guidelines based on the evolution of collective knowledge in recent years. The main points covered in this position paper are methods for the isolation and molecular characterization of EVs obtained from parasite-infected cell cultures, experimental animals, and patients. The guideline also includes a discussion of suggested protocols and functional assays in host cells.
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Affiliation(s)
- Carmen Fernandez‐Becerra
- ISGlobal, Barcelona Institute for Global HealthHospital Clínic‐Universitatde BarcelonaBarcelonaSpain
- IGTP Institut d'Investigació Germans Trias i PujolBadalona (Barcelona)Spain
- CIBERINFECISCIII‐CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos IIIMadridSpain
| | - Patrícia Xander
- Departamento de Ciências FarmacêuticasLaboratório de Imunologia Celular e Bioquímica de Fungos e ProtozoáriosDepartamento de Ciências FarmacêuticasInstituto de Ciências AmbientaisQuímicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)São PauloBrazil
| | - Daniel Alfandari
- Department of Biomolecular SciencesWeizmann Institute of Science (WIS)RehovotIsrael
| | - George Dong
- The Research Institute of the McGill University Health CentreMcGill UniversityMontréalQuébecCanada
| | - Iris Aparici‐Herraiz
- ISGlobal, Barcelona Institute for Global HealthHospital Clínic‐Universitatde BarcelonaBarcelonaSpain
| | | | - Mehrdad Shokouhy
- Department of Immunotherapy and Leishmania Vaccine ResearchPasteur Institute of IranTehranIran
| | - Melisa Gualdron‐Lopez
- ISGlobal, Barcelona Institute for Global HealthHospital Clínic‐Universitatde BarcelonaBarcelonaSpain
| | - Nicholy Lozano
- Departamento de Ciências FarmacêuticasLaboratório de Imunologia Celular e Bioquímica de Fungos e ProtozoáriosDepartamento de Ciências FarmacêuticasInstituto de Ciências AmbientaisQuímicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)São PauloBrazil
| | - Nuria Cortes‐Serra
- ISGlobal, Barcelona Institute for Global HealthHospital Clínic‐Universitatde BarcelonaBarcelonaSpain
| | - Paula Abou Karam
- Department of Biomolecular SciencesWeizmann Institute of Science (WIS)RehovotIsrael
| | - Paula Meneghetti
- Departamento de Ciências FarmacêuticasLaboratório de Imunologia Celular e Bioquímica de Fungos e ProtozoáriosDepartamento de Ciências FarmacêuticasInstituto de Ciências AmbientaisQuímicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)São PauloBrazil
| | - Rafael Pedro Madeira
- Departamento de Ciências FarmacêuticasLaboratório de Imunologia Celular e Bioquímica de Fungos e ProtozoáriosDepartamento de Ciências FarmacêuticasInstituto de Ciências AmbientaisQuímicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)São PauloBrazil
| | - Ziv Porat
- Flow Cytometry UnitLife Sciences Core Facilities, WISRehovotIsrael
| | | | - Adriana Oliveira Costa
- Departamento de Análises Clínicas e ToxicológicasFaculdade de Farmácia, Universidade Federal de Minas Gerais (UFMG)Belo HorizonteMinas GeraisBrasil
| | - Sima Rafati
- Department of Immunotherapy and Leishmania Vaccine ResearchPasteur Institute of IranTehranIran
| | - Anabela‐Cordeiro da Silva
- Host‐Parasite Interactions GroupInstitute of Research and Innovation in HealthUniversity of PortoPortoPortugal
- Department of Biological SciencesFaculty of PharmacyUniversity of PortoPortoPortugal
| | - Nuno Santarém
- Host‐Parasite Interactions GroupInstitute of Research and Innovation in HealthUniversity of PortoPortoPortugal
- Department of Biological SciencesFaculty of PharmacyUniversity of PortoPortoPortugal
| | | | - Marcel I. Ramirez
- EVAHPI ‐ Extracellular Vesicles and Host‐Parasite Interactions Research Group Laboratório de Biologia Molecular e Sistemática de TripanossomatideosInstituto Carlos Chagas‐FiocruzCuritibaParanáBrasil
| | - Dolores Bernal
- Departament de Bioquímica i Biologia Molecular, Facultat de Ciències BiològiquesUniversitat de ValènciaBurjassotValenciaSpain
| | - Antonio Marcilla
- Àrea de Parasitologia, Departament de Farmàcia i Tecnologia Farmacèutica i ParasitologiaUniversitat de ValènciaBurjassotValenciaSpain
| | - Vera Lucia Pereira‐Chioccola
- Laboratório de Biologia Molecular de Parasitas e Fungos, Centro de Parasitologia e MicologiaInstituto Adolfo Lutz (IAL)São PauloBrasil
| | - Lysangela Ronalte Alves
- Laboratório de Regulação da Expressão GênicaInstituto Carlos ChagasFiocruz ParanáCuritibaBrazil
- Research Center in Infectious DiseasesDivision of Infectious Disease and Immunity CHU de Quebec Research CenterDepartment of MicrobiologyInfectious Disease and ImmunologyFaculty of MedicineUniversity LavalQuebec CityQuebecCanada
| | - Hernando Del Portillo
- ISGlobal, Barcelona Institute for Global HealthHospital Clínic‐Universitatde BarcelonaBarcelonaSpain
- IGTP Institut d'Investigació Germans Trias i PujolBadalona (Barcelona)Spain
- ICREA Institució Catalana de Recerca i Estudis Avanc¸ats (ICREA)BarcelonaSpain
| | - Neta Regev‐Rudzki
- Department of Biomolecular SciencesWeizmann Institute of Science (WIS)RehovotIsrael
| | - Igor Correia de Almeida
- Department of Biological SciencesBorder Biomedical Research CenterThe University of Texas at El PasoEl PasoTexasUSA
| | - Sergio Schenkman
- Departamento de MicrobiologiaImunologia e Parasitologia, UNIFESPSão PauloBrazil
| | - Martin Olivier
- The Research Institute of the McGill University Health CentreMcGill UniversityMontréalQuébecCanada
| | - Ana Claudia Torrecilhas
- Departamento de Ciências FarmacêuticasLaboratório de Imunologia Celular e Bioquímica de Fungos e ProtozoáriosDepartamento de Ciências FarmacêuticasInstituto de Ciências AmbientaisQuímicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)São PauloBrazil
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13
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Zhang Z, Song X, Deng Y, Li Y, Li F, Sheng W, Tian X, Yang Z, Mei X, Wang S. Trichomonas vaginalis adhesion protein 65 (TvAP65) modulates parasite pathogenicity by interacting with host cell proteins. Acta Trop 2023; 246:106996. [PMID: 37536435 DOI: 10.1016/j.actatropica.2023.106996] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Trichomonas vaginalis (T. vaginalis) is a widespread and important sexually transmitted pathogen. Adherence to the surface of the host cell is the precondition forthis parasite's parasitism and pathogenicity. Adhesion protein 65 (TvAP65) plays a key role in the process of adhesion. However, how TvAP65 mediates the adhesion and pathogenicity of T. vaginalis to host cellsis unclear. In this study, we knocked down the expression of TvAP65 in trophozoites by small RNA interference. The number of T. vaginalis trophozoites adhering to VK2/E6E7 cells was decreased significantly, and the inhibition of VK2/E6E7 cells proliferation and VK2/E6E7 cells apoptosis and death induced by T. vaginalis were reduced, after the expression of TvAP65 was knocked down. Animal challenge experiments showed that the pathogenicity of trophozoites was decreased by passive immunization with anti-rTvAP65 PcAbs or blocking the TvAP65 protein. Immunofluorescence analysis showed that TvAP65 could bind to VK2/E6E7 cells. In order to screen the molecules interacting with TvAP65 on the host cells, we successfully constructed the cDNA library of VK2/E6E7 cells, and thirteen protein molecules interacting with TvAP65 were screened by yeast two-hybrid system. The interaction between TvAP65 and BNIP3 was further confirmed by coimmunoprecipitation and colocalization. When both TvAP65 and BNIP3 were knocked down by small RNA interference, the number of T. vaginalis adhering to VK2/E6E7 cells and the inhibition of VK2/E6E7 cells proliferation were significantly lower than those of the group with knockdown of TvAP65 or BNIP3 alone. Therefore, the interaction of TvAP65 and BNIP3 in the pathogenesis of T. vaginalis infecting host cells is not unique and involves other molecules. Our study elucidated that the interaction between TvAP65 and BNIP3 mediated the adhesion and pathogenicity of T. vaginalis to host cells, provided a basis for searching for the drug targets of anti-T. vaginalis, and afforded new ideas for the prevention and treatment of trichomoniasis.
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Affiliation(s)
- Zhenchao Zhang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xiaoxiao Song
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Yangyang Deng
- The Third Affiliated Hospital Of Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Yuhua Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Fakun Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Wanxin Sheng
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xiaowei Tian
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Zhenke Yang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xuefang Mei
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
| | - Shuai Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
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14
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Molgora BM, Mukherjee SK, Baumel-Alterzon S, Santiago FM, Muratore KA, Sisk AE, Mercer F, Johnson PJ. Trichomonas vaginalis adherence phenotypes and extracellular vesicles impact parasite survival in a novel in vivo model of pathogenesis. PLoS Negl Trop Dis 2023; 17:e0011693. [PMID: 37871037 PMCID: PMC10621976 DOI: 10.1371/journal.pntd.0011693] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 11/02/2023] [Accepted: 10/02/2023] [Indexed: 10/25/2023] Open
Abstract
Trichomonas vaginalis is a human infective parasite responsible for trichomoniasis-the most common, non-viral, sexually transmitted infection worldwide. T. vaginalis resides exclusively in the urogenital tract of both men and women. In women, T. vaginalis has been found colonizing the cervix and vaginal tract while in men it has been identified in the upper and lower urogenital tract and in secreted fluids such as semen, urethral discharge, urine, and prostatic fluid. Despite the over 270 million cases of trichomoniasis annually worldwide, T. vaginalis continues to be a highly neglected organism and thus poorly studied. Here we have developed a male mouse model for studying T. vaginalis pathogenesis in vivo by delivering parasites into the murine urogenital tract (MUT) via transurethral catheterization. Parasite burden was assessed ex-vivo using a nanoluciferase-based gene expression assay which allowed quantification of parasites pre- and post-inoculation. Using this model and read-out approach, we show that T. vaginalis can be found within MUT tissue up to 72 hrs post-inoculation. Furthermore, we also demonstrate that parasites that exhibit increased parasite adherence in vitro also have higher parasite burden in mice in vivo. These data provide evidence that parasite adherence to host cells aids in parasite persistence in vivo and molecular determinants found to correlate with host cell adherence in vitro are applicable to infection in vivo. Finally, we show that co-inoculation of T. vaginalis extracellular vesicles (TvEVs) and parasites results in higher parasite burden in vivo. These findings confirm our previous in vitro-based predictions that TvEVs assist the parasite in colonizing the host. The establishment of this pathogenesis model for T. vaginalis sets the stage for identifying and examining parasite factors that contribute to and influence infection outcomes.
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Affiliation(s)
- Brenda M. Molgora
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California, United States of America
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Sandip Kumar Mukherjee
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Sharon Baumel-Alterzon
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Fernanda M. Santiago
- Laboratory of Immunoparasitology “Dr. Mário Endsfeldz Camargo,” Department of Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Katherine A. Muratore
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Anthony E. Sisk
- Department of Pathology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Frances Mercer
- Department of Biological Sciences, California State Polytechnic University, Pomona, Pomona, California, United States of America
| | - Patricia J. Johnson
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California, United States of America
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
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15
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Sharma M, Lozano-Amado D, Chowdhury D, Singh U. Extracellular Vesicles and Their Impact on the Biology of Protozoan Parasites. Trop Med Infect Dis 2023; 8:448. [PMID: 37755909 PMCID: PMC10537256 DOI: 10.3390/tropicalmed8090448] [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: 08/07/2023] [Revised: 09/11/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023] Open
Abstract
Extracellular vesicles (EVs) are lipid-membrane-bound structures produced naturally by all cells and have a variety of functions. EVs act as vehicles for transporting important molecular signals from one cell to another. Several parasites have been shown to secrete EVs, and their biological functions have been extensively studied. EVs have been shown to facilitate communication with the host cells (such as modulation of the host's immune system or promoting attachment and invasion into the host cells) or for communication between parasitic cells (e.g., transferring drug-resistance genes or factors modulating stage conversion). It is clear that EVs play an important role in host-parasite interactions. In this review, we summarized the latest research on the EVs secreted by protozoan parasites and their role in host-parasite and parasite-parasite communications.
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Affiliation(s)
- Manu Sharma
- Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA 94305, USA; (M.S.); (D.L.-A.); (D.C.)
| | - Daniela Lozano-Amado
- Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA 94305, USA; (M.S.); (D.L.-A.); (D.C.)
| | - Debabrata Chowdhury
- Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA 94305, USA; (M.S.); (D.L.-A.); (D.C.)
| | - Upinder Singh
- Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA 94305, USA; (M.S.); (D.L.-A.); (D.C.)
- Department of Microbiology and Immunology, School of Medicine, Stanford University, Stanford, CA 94305, USA
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16
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Lê HG, Kang JM, Võ TC, Yoo WG, Na BK. Naegleria fowleri Extracellular Vesicles Induce Proinflammatory Immune Responses in BV-2 Microglial Cells. Int J Mol Sci 2023; 24:13623. [PMID: 37686429 PMCID: PMC10487526 DOI: 10.3390/ijms241713623] [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: 07/27/2023] [Revised: 08/26/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
Extracellular vesicles (EVs) of protozoan parasites have diverse biological functions that are essential for parasite survival and host-parasite interactions. In this study, we characterized the functional properties of EVs from Naegleria fowleri, a pathogenic amoeba that causes a fatal brain infection called primary amoebic meningoencephalitis (PAM). N. fowleri EVs (NfEVs) have been shown to be internalized by host cells such as C6 glial cells and BV-2 microglial cells without causing direct cell death, indicating their potential roles in modulating host cell functions. NfEVs induced increased expression of proinflammatory cytokines and chemokines such as TNF-α, IL-1α, IL-1β, IL-6, IL-17, IFN-γ, MIP-1α, and MIP-2 in BV-2 microglial cells; these increases were initiated via MyD88-dependent TLR-2/TLR-4. The production levels of proinflammatory cytokines and chemokines in NfEVs-stimulated BV-2 microglial cells were effectively downregulated by inhibitors of MAPK, NF-κB, or JAK-STAT. Phosphorylation levels of JNK, p38, ERK, p65, JAK-1, and STAT3 were increased in NfEVs-stimulated BV-2 microglial cells but were effectively suppressed by each corresponding inhibitor. These results suggest that NfEVs could induce proinflammatory immune responses in BV-2 microglial cells via the NF-κB-dependent MAPK and JAK-STAT signaling pathways. Taken together, these findings suggest that NfEVs are pathogenic factors involved in the contact-independent pathogenic mechanisms of N. fowleri by inducing proinflammatory immune responses in BV-2 microglial cells, further contributing to deleterious inflammation in infected foci by activating subsequent inflammation cascades in other brain cells.
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Affiliation(s)
- Hương Giang Lê
- Department of Parasitology and Tropical Medicine, Institute of Medical Science, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea (J.-M.K.); (T.C.V.); (W.G.Y.)
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Jung-Mi Kang
- Department of Parasitology and Tropical Medicine, Institute of Medical Science, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea (J.-M.K.); (T.C.V.); (W.G.Y.)
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Tuấn Cường Võ
- Department of Parasitology and Tropical Medicine, Institute of Medical Science, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea (J.-M.K.); (T.C.V.); (W.G.Y.)
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Won Gi Yoo
- Department of Parasitology and Tropical Medicine, Institute of Medical Science, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea (J.-M.K.); (T.C.V.); (W.G.Y.)
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, Institute of Medical Science, College of Medicine, Gyeongsang National University, Jinju 52727, Republic of Korea (J.-M.K.); (T.C.V.); (W.G.Y.)
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea
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17
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Zhang Z, Deng Y, Sheng W, Song X, Li Y, Li F, Pan Y, Tian X, Yang Z, Wang S, Wang M, Mei X. The interaction between adhesion protein 33 (TvAP33) and BNIP3 mediates the adhesion and pathogenicity of Trichomonas vaginalis to host cells. Parasit Vectors 2023; 16:210. [PMID: 37344876 DOI: 10.1186/s13071-023-05798-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/02/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Trichomonas vaginalis is a widespread and important sexually transmitted pathogen. Adherence to the surface of the host cell is the precondition for the parasitism and pathogenicity of this parasite. Trichomonas vaginalis adhesion protein 33 (TvAP33) plays a key role in the process of adhesion, but how this protein mediates the adhesion and pathogenicity of T. vaginalis to host cells is unclear. METHODS The expression of TvAP33 in trophozoites was knocked down by small interfering RNA. VK2/E6E7 cells and mice infected with T. vaginalis were used to evaluate the pathogenicity of T. vaginalis. We constructed a complementary DNA library of VK2/E6E7 cells and screened the protein molecules interacting with TvAP33 by the yeast two-hybrid system. The interaction between TvAP33 and BNIP3 (Bcl-2 interacting protein 3) was analyzed by co-immunoprecipitation and colocalization. RESULTS Following knockdown of TvAP33 expression, the number of T. vaginalis trophozoites adhering to VK2/E6E7 cells decreased significantly, and the inhibition of VK2/E6E7 cell proliferation and VK2/E6E7 cell apoptosis and death induced by T. vaginalis were reduced. Animal challenge experiments showed that the pathogenicity of trophozoites decreased following passive immunization with TvAP33 antiserum or blocking of the TvAP33 protein. Immunofluorescence analysis revealed that TvAP33 could bind to VK2/E6E7 cells. Eighteen protein molecules interacting with TvAP33 were identified by the yeast two-hybrid system. The interaction between TvAP33 and BNIP3 was further confirmed by co-immunoprecipitation and colocalization. When the expression of both TvAP33 and BNIP3 in trophozoites was knocked down by small RNA interference, the number of T. vaginalis adhering to VK2/E6E7 cells and the inhibition of VK2/E6E7 cell proliferation were significantly lower compared to trophozoites with only knockdown of TvAP33 or only BNIP3. Therefore, the interaction of TvAP33 and BNIP3 in the pathogenesis of T. vaginalis infecting host cells is not unique and involves other molecules. CONCLUSIONS Our study showed that the interaction between TvAP33 and BNIP3 mediated the adhesion and pathogenicity of T. vaginalis to host cells, providing a basis for searching for drug targets for T. vaginalis as well as new ideas for the prevention and treatment of trichomoniasis.
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Affiliation(s)
- Zhenchao Zhang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Yangyang Deng
- The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Wanxin Sheng
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Xiaoxiao Song
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Yuhua Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Fakun Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Ying Pan
- The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Xiaowei Tian
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Zhenke Yang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Shuai Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China
| | - Mingyong Wang
- Xinxiang Key Laboratory of Immunoregulation and Molecular Diagnostics, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, China.
- School of Medical Technology, Shangqiu Medical College, Shangqiu, 476100, China.
| | - Xuefang Mei
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
- Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, People's Republic of China.
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Natali L, Luna Pizarro G, Moyano S, de la Cruz-Thea B, Musso J, Rópolo AS, Eichner N, Meister G, Musri MM, Feliziani C, Touz MC. The Exosome-like Vesicles of Giardia Assemblages A, B, and E Are Involved in the Delivering of Distinct Small RNA from Parasite to Parasite. Int J Mol Sci 2023; 24:ijms24119559. [PMID: 37298511 DOI: 10.3390/ijms24119559] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 06/12/2023] Open
Abstract
The genetically related assemblages of the intestinal protozoa parasite Giardia lamblia are morphologically indistinguishable and are often derived from specific hosts. The Giardia assemblages are separated by large genetic distances, which might account for their relevant biological and pathogenic differences. In this work, we analyzed the RNAs cargo released into exosomal-like vesicles (ElVs) by the assemblages A and B, which differentially infect humans, and the assemblage E, which infects hoofed animals. The RNA sequencing analysis revealed that the ElVs of each assemblage contained distinct small RNA (sRNA) biotypes, suggesting a preference for specific packaging in each assemblage. These sRNAs were classified into three categories, ribosomal-small RNAs (rsRNAs), messenger-small RNAs (msRNAs), and transfer-small RNAs (tsRNAs), which may play a regulatory role in parasite communication and contribute to host-specificity and pathogenesis. Uptake experiments showed, for the first time, that ElVs were successfully internalized by the parasite trophozoites. Furthermore, we observed that the sRNAs contained inside these ElVs were first located below the plasma membrane but then distributed along the cytoplasm. Overall, the study provides new insights into the molecular mechanisms underlying the host-specificity and pathogenesis of G. lamblia and highlights the potential role of sRNAs in parasite communication and regulation.
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Affiliation(s)
- Lautaro Natali
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Gabriel Luna Pizarro
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Sofía Moyano
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Benjamin de la Cruz-Thea
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Juliana Musso
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Andrea S Rópolo
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Norbert Eichner
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany
| | - Gunter Meister
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany
| | - Melina M Musri
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Constanza Feliziani
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - María C Touz
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Consejo Nacional de Investigaciones Científicas y Técnicas (INIMEC-CONICET), Universidad Nacional de Córdoba, Córdoba 5016, Argentina
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19
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Multiple Regulations of Parasitic Protozoan Viruses: A Double-Edged Sword for Protozoa. mBio 2023; 14:e0264222. [PMID: 36633419 PMCID: PMC9973342 DOI: 10.1128/mbio.02642-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Parasite infections affect human and animal health significantly and contribute to a major burden on the global economy. Parasitic protozoan viruses (PPVs) affect the protozoan parasites' morphology, phenotypes, pathogenicity, and growth rates. This discovery provides an opportunity to develop a novel preventive and therapeutic strategy for parasitic protozoan diseases (PPDs). Currently, there is greater awareness regarding PPVs; however, knowledge of viruses and their associations with host diseases remains limited. Parasite-host interactions become more complex owing to PPVs; however, few studies have investigated underlying viral regulatory mechanisms in parasites. In this study, we reviewed relevant studies to identify studies that investigated PPV development and life cycles, the triangular association between viruses, parasites, and hosts, and the effects of viruses on protozoan pathogenicity. This study highlights that viruses can alter parasite biology, and viral infection of parasites may exacerbate the adverse effects of virus-containing parasites on hosts or reduce parasite virulence. PPVs should be considered in the prevention of parasitic epidemics and outbreaks, although their effects on the host and the complexity of the triangular association between PPVs, protozoans, and hosts remain unclear. IMPORTANCE PPVs-based regulation of parasitic protozoa can provide a theoretical basis and direction for PPD prevention and control, although PPVs and PPV regulatory mechanisms remain unclear. In this review, we investigated the differences between PPVs and the unique properties of each virus regarding virus discovery, structures, and life cycles, focused on the Trichomonas vaginalis virus, Giardia lamblia virus, Leishmania RNA virus, and the Cryptosporidium parvum virus 1. The triangular association between PPVs, parasitic protozoa, and hosts reveals the "double-edged sword" property of PPVs, which maintains a balance between parasitic protozoa and hosts in both positive and negative respects. These studies discuss the complexity of parasitic protozoa and their co-existence with hosts and suggest novel pathways for using PPVs as tools to gain a deeper understanding of protozoal infection and treatment.
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20
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Cruz Camacho A, Alfandari D, Kozela E, Regev-Rudzki N. Biogenesis of extracellular vesicles in protozoan parasites: The ESCRT complex in the trafficking fast lane? PLoS Pathog 2023; 19:e1011140. [PMID: 36821560 PMCID: PMC9949670 DOI: 10.1371/journal.ppat.1011140] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Extracellular vesicles (EVs) provide a central mechanism of cell-cell communication. While EVs are found in most organisms, their pathogenesis-promoting roles in parasites are of particular interest given the potential for medical insight and consequential therapeutic intervention. Yet, a key feature of EVs in human parasitic protozoa remains elusive: their mechanisms of biogenesis. Here, we survey the current knowledge on the biogenesis pathways of EVs secreted by the four main clades of human parasitic protozoa: apicomplexans, trypanosomatids, flagellates, and amoebae. In particular, we shine a light on findings pertaining to the Endosomal Sorting Complex Required for Transport (ESCRT) machinery, as in mammals it plays important roles in EV biogenesis. This review highlights the diversity in EV biogenesis in protozoa, as well as the related involvement of the ESCRT system in these unique organisms.
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Affiliation(s)
- Abel Cruz Camacho
- Department of Biomolecular Sciences, Faculty of Biochemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Daniel Alfandari
- Department of Biomolecular Sciences, Faculty of Biochemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Ewa Kozela
- Department of Biomolecular Sciences, Faculty of Biochemistry, Weizmann Institute of Science, Rehovot, Israel
| | - Neta Regev-Rudzki
- Department of Biomolecular Sciences, Faculty of Biochemistry, Weizmann Institute of Science, Rehovot, Israel
- * E-mail:
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21
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Elbasir A, Ye Y, Schäffer DE, Hao X, Wickramasinghe J, Tsingas K, Lieberman PM, Long Q, Morris Q, Zhang R, Schäffer AA, Auslander N. A deep learning approach reveals unexplored landscape of viral expression in cancer. Nat Commun 2023; 14:785. [PMID: 36774364 PMCID: PMC9922274 DOI: 10.1038/s41467-023-36336-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 01/25/2023] [Indexed: 02/13/2023] Open
Abstract
About 15% of human cancer cases are attributed to viral infections. To date, virus expression in tumor tissues has been mostly studied by aligning tumor RNA sequencing reads to databases of known viruses. To allow identification of divergent viruses and rapid characterization of the tumor virome, we develop viRNAtrap, an alignment-free pipeline to identify viral reads and assemble viral contigs. We utilize viRNAtrap, which is based on a deep learning model trained to discriminate viral RNAseq reads, to explore viral expression in cancers and apply it to 14 cancer types from The Cancer Genome Atlas (TCGA). Using viRNAtrap, we uncover expression of unexpected and divergent viruses that have not previously been implicated in cancer and disclose human endogenous viruses whose expression is associated with poor overall survival. The viRNAtrap pipeline provides a way forward to study viral infections associated with different clinical conditions.
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Affiliation(s)
| | - Ying Ye
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Daniel E Schäffer
- The Wistar Institute, Philadelphia, PA, 19104, USA.,Computational Biology Department, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Xue Hao
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | | | - Konstantinos Tsingas
- The Wistar Institute, Philadelphia, PA, 19104, USA.,University of Pennsylvania, Philadelphia, PA, USA
| | | | - Qi Long
- University of Pennsylvania, Philadelphia, PA, USA
| | - Quaid Morris
- Computational and Systems Biology, Sloan Kettering Institute, New York City, NY, 10065, USA
| | - Rugang Zhang
- The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Alejandro A Schäffer
- Cancer Data Science Laboratory (CDSL), National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
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22
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Rangel-Ramírez VV, González-Sánchez HM, Lucio-García C. Exosomes: from biology to immunotherapy in infectious diseases. Infect Dis (Lond) 2023; 55:79-107. [PMID: 36562253 DOI: 10.1080/23744235.2022.2149852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Exosomes are extracellular vesicles derived from the endosomal compartment, which are released by all kinds of eukaryotic and prokaryotic organisms. These vesicles contain a variety of biomolecules that differ both in quantity and type depending on the origin and cellular state. Exosomes are internalized by recipient cells, delivering their content and thus contributing to cell-cell communication in health and disease. During infections exosomes may exert a dual role, on one hand, they can transmit pathogen-related molecules mediating further infection and damage, and on the other hand, they can protect the host by activating the immune response and reducing pathogen spread. Selective packaging of pathogenic components may mediate these effects. Recently, quantitative analysis of samples by omics technologies has allowed a deep characterization of the proteins, lipids, RNA, and metabolite cargoes of exosomes. Knowledge about the content of these vesicles may facilitate their therapeutic application. Furthermore, as exosomes have been detected in almost all biological fluids, pathogenic or host-derived components can be identified in liquid biopsies, making them suitable for diagnosis and prognosis. This review attempts to organize the recent findings on exosome composition and function during viral, bacterial, fungal, and protozoan infections, and their contribution to host defense or to pathogen spread. Moreover, we summarize the current perspectives and future directions regarding the potential application of exosomes for prophylactic and therapeutic purposes.
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Affiliation(s)
| | | | - César Lucio-García
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
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23
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Zhang Z, Li F, Deng Y, Li Y, Sheng W, Tian X, Yang Z, Wang S, Guo L, Hao L, Mei X. Trichomonas vaginalis excretory secretory proteins reduce semen quality and male fertility. Acta Trop 2023; 238:106794. [PMID: 36535511 DOI: 10.1016/j.actatropica.2022.106794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/14/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Abstract
Trichomonas vaginalis (T. vaginalis) infection is the most common non-viral sexually transmitted disease (STD) in the world. It can cause male reproductive dysfunction and infertility. However, the pathogenic mechanism is not clear. In this study, the excretory secretory proteins of T. vaginalis (TvESPs) were collected, concentrated, and sterilized. After sperm co-cultured with TvESPs, the survival rate and motility of sperms were analyzed by seminal routine examination, and the results showed that the TvESPs could significantly reduce the survival rate and motility of sperms. Fluorescence staining displayed that TvESPs could destroy the integrity of sperm acrosomes. Flow cytometry indicated that TvESPs induced sperm apoptosis. By mouse in vitro fertilization, we confirmed that TvESPs could significantly reduce the fertilization ability of sperms and negatively affect the development of the fertilized ovum. Via semi-quantitative analysis, we found that the apoptosis-related p27, SMAC, p53, BAX, BCL-2, XIAP, and BCL-W molecules were down-regulated in mouse sperm cells after interaction between the sperms and TvESPs, which played an important role in regulating sperm apoptosis. In conclusion, our study showed that T. vaginalis degraded semen quality and negatively affected male fertility by TvESPs. TvESPs may damage sperms by breaking the balance between sperm pro-apoptotic and anti-apoptotic molecules. This study proves that T. vaginalis infection is a risk factor for infertility.
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Affiliation(s)
- Zhenchao Zhang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Fakun Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Yangyang Deng
- The Third Affiliated Hospital Of Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Yuhua Li
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Wanxin Sheng
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Xiaowei Tian
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Zhenke Yang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Shuai Wang
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China
| | - Lihua Guo
- Xinxiang Maternity and Child Healthcare Hospital, Xinxiang, Henan, 453003, PR China
| | - Lixia Hao
- Xinxiang Maternity and Child Healthcare Hospital, Xinxiang, Henan, 453003, PR China.
| | - Xuefang Mei
- Department of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China; Xinxiang Key Laboratory of Pathogenic Biology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, 453003, PR China.
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24
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Matthew MA, Yang N, Ketzis J, Mukaratirwa S, Yao C. Trichomonas tenax: A Neglected Protozoan Infection in the Oral Cavities of Humans and Dogs-A Scoping Review. Trop Med Infect Dis 2023; 8:tropicalmed8010060. [PMID: 36668967 PMCID: PMC9863487 DOI: 10.3390/tropicalmed8010060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/15/2023] Open
Abstract
Trichomonas tenax is a flagellated protozoan parasite found in the oral cavities of humans and animals and has been associated with periodontal disease, the most prevalent inflammatory disease affecting them all. Studies have shown that T. tenax can cause damage to mammalian cells and secretes virulent proteins, such as cysteine. It is presently considered zoonotic. Despite the few studies that have been done, the pathogenicity of this oral protozoan is still not fully understood. A database search was performed in July 2022 using PubMed and Google Scholar to retrieve data eligible for this study. PRISMA-ScR guidelines were followed to conduct this scoping review. A total of 321 articles were found with 87 included in this review after applying the exclusion criteria. Due to its increasing prevalence worldwide in both humans and dogs, detecting and elucidating the pathogenicity of this parasite is paramount for effective global control and prevention of periodontal disease. However, there is a paucity in the literature on this neglected zoonotic trichomonad, which is in large contrast to the closely related human pathogen T. vaginalis. Here, we comprehensively review the history, morphology and reproduction, host, prevalence, diagnosis, pathogenicity, control, and prevention of T. tenax. Hopefully, this article will call attention to both medical and veterinary professionals as well as epidemiologists on this most neglected and zoonotic protozoan. More epidemiological and clinical studies need to be conducted on T. tenax to gain a better understanding of its pathogenicity, to increase the chances of developing effective drugs to aid in the control of this oral parasite, and reduce the spread of periodontal disease worldwide.
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Hsu HM, Yang YY, Huang YH, Chu CH, Tu TJ, Wu YT, Chiang CJ, Yang SB, Hsu DK, Liu FT, Tai JH. Distinct features of the host-parasite interactions between nonadherent and adherent Trichomonas vaginalis isolates. PLoS Negl Trop Dis 2023; 17:e0011016. [PMID: 36595499 PMCID: PMC9810166 DOI: 10.1371/journal.pntd.0011016] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 12/12/2022] [Indexed: 01/04/2023] Open
Abstract
Cytoadherence of Trichomonas vaginalis to human vaginal epithelial cells (hVECs) was previously shown to involve surface lipoglycans and several reputed adhesins on the parasite. Herein, we report some new observations on the host-parasite interactions of adherent versus nonadherent T. vaginalis isolates to hVECs. The binding of the TH17 adherent isolate to hVECs exhibited an initial discrete phase followed by an aggregation phase inhibited by lactose. T. vaginalis infection immediately induced surface expression of galectin-1 and -3, with extracellular amounts in the spent medium initially decreasing and then increasing thereafter over the next 60 min. Extracellular galectin-1 and -3 were detected on the parasite surface but only the TH17 adherent isolate could uptake galectin-3 via the lysosomes. Only the adherent isolate could morphologically transform from the round-up flagellate with numerous transient protrusions into a flat amoeboid form on contact with the solid surface. Cytochalasin D challenge revealed that actin organization was essential to parasite morphogenesis and cytoadherence. Real-time microscopy showed that parasite exploring and anchoring on hVECs via the axostyle may be required for initial cytoadherence. Together, the parasite cytoskeleton behaviors may collaborate with cell surface adhesion molecules for cytoadherence. The nonadherent isolate migrated faster than the adherent isolate, with motility transiently increasing in the presence of hVECs. Meanwhile, differential histone acetylation was detected between the two isolates. Also, TH17 without Mycoplasma symbiosis suggests that symbiont might not determine TH17 innate cytoadherence. Our findings regarding distinctive host-parasite interactions of the isolates may provide novel insights into T. vaginalis infection.
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Affiliation(s)
- Hong-Ming Hsu
- Department of Tropical Medicine and Parasitology, College of Medicine, National Taiwan University, Taipei, Taiwan
- * E-mail:
| | - Yen-Yu Yang
- Division of Infectious Diseases and Immunology, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yu-Hsin Huang
- Division of Infectious Diseases and Immunology, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chien-Hsin Chu
- Division of Infectious Diseases and Immunology, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Ting-Jui Tu
- Division of Infectious Diseases and Immunology, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yen-Ting Wu
- Division of Neuroscience, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- High School Talent Student in Life Science Project at Academia Sinica and Taipei Municipal Chenggong High School, Taipei, Taiwan
| | - Chu-Jen Chiang
- Division of Neuroscience, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- High School Talent Student in Life Science Project at Academia Sinica and Taipei Municipal Chenggong High School, Taipei, Taiwan
| | - Shi-Bing Yang
- Division of Neuroscience, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Daniel K. Hsu
- Department of Dermatology, University of California Davis, Sacramento, California, United States of America
| | - Fu-Tong Liu
- Division of Infectious Diseases and Immunology, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Dermatology, University of California Davis, Sacramento, California, United States of America
| | - Jung-Hsiang Tai
- Division of Infectious Diseases and Immunology, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
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Ferreira B, Lourenço Á, Sousa MDC. Protozoa-Derived Extracellular Vesicles on Intercellular Communication with Special Emphasis on Giardia lamblia. Microorganisms 2022; 10:microorganisms10122422. [PMID: 36557675 PMCID: PMC9788250 DOI: 10.3390/microorganisms10122422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/25/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Parasitic diseases are an important worldwide problem threatening human health and affect millions of people. Acute diarrhea, intestinal bleeding, malabsorption of nutrients and nutritional deficiency are some of the issues related to intestinal parasitic infections. Parasites are experts in subvert the host immune system through different kinds of mechanisms. There are evidences that extracellular vesicles (EVs) have an important role in dissemination of the disease and in modulating the host immune system. Released by almost all types of cells, these nanovesicles are a natural secretory product containing multiple components of interest. The EVs are classified as apoptotic bodies, microvesicles, exosomes, ectosomes, and microparticles, according to their physical characteristics, biochemical composition and cell of origin. Interestingly, EVs play an important role in intercellular communication between parasites as well as with the host cells. Concerning Giardia lamblia, it is known that this parasite release EVs during it life cycle that modulate the parasite growth and adherence as well the immune system of the host. Here we review the recently updates on protozoa EVs, with particular emphasis on the role of EVs released by the flagellate protozoa G. lamblia in cellular communication and its potential for future applications as vaccine, therapeutic agent, drug delivery system and as diagnostic or prognostic biomarker.
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Affiliation(s)
- Bárbara Ferreira
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- CIVG-Vasco da Gama Research Center, EUVG-Vasco da Gama University School, 3020-210 Coimbra, Portugal
| | - Ágata Lourenço
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - Maria do Céu Sousa
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- Correspondence:
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Leonardi SS, Koh EY, Deng L, Huang C, Tong L, Wang JW, Tan KSW. The synthesis of extracellular vesicles by the protistan parasite Blastocystis. Front Cell Infect Microbiol 2022; 12:1019789. [PMID: 36389146 PMCID: PMC9648668 DOI: 10.3389/fcimb.2022.1019789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/10/2022] [Indexed: 11/25/2022] Open
Abstract
Blastocystis is a genus of single-celled protist belonging to the stramenopile group. Prior studies have shown that isolates of Blastocystis subtype 7 (ST7) induced higher levels of intestinal epithelial cell damage and gut microbiota dysbiosis in comparison to other subtypes in in vivo and in vitro settings. Prior research has shown a link between gut dysbiosis and exposure to extracellular vesicles (EVs) produced by pathogenic microorganisms. This study demonstrates a protocol for the isolation of EVs from Blastocystis ST7 via ultracentrifugation. Nanoparticle tracking analysis and transmission electron microscopy were used to assess EV size and morphology. The protein content of isolated EVs was assessed by mass spectrophotometry and the presence of EV markers were evaluated by Western blotting. Finally, the EVs were cocultured with prominent human gut microbiome species to observe their effect on prokaryote growth. Our data shows that Blastocystis ST7 secretes EVs that are similar in morphology to previously characterized EVs from other organisms and that these EVs contain a limited yet unique protein cargo with functions in host-parasite intercellular communication and cell viability. This cargo may be involved in mediating the effects of Blastocystis on its surrounding environment.
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Affiliation(s)
- Steven Santino Leonardi
- Laboratory of Molecular and Cellular Parasitology, Healthy Longevity Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Eileen Yiling Koh
- Laboratory of Molecular and Cellular Parasitology, Healthy Longevity Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lei Deng
- Laboratory of Molecular and Cellular Parasitology, Healthy Longevity Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chenyuan Huang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lingjun Tong
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jiong-Wei Wang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Nanomedicine Translational Research Programme, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Cardiovascular Research Institute, National University Heart Centre Singapore, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Kevin Shyong-Wei Tan
- Laboratory of Molecular and Cellular Parasitology, Healthy Longevity Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- *Correspondence: Kevin Shyong-Wei Tan,
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Wang X, Chen J, Zheng J. The state of the art of extracellular vesicle research in protozoan infection. Front Genet 2022; 13:941561. [PMID: 36035188 PMCID: PMC9417467 DOI: 10.3389/fgene.2022.941561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/25/2022] [Indexed: 11/25/2022] Open
Abstract
Protozoan diseases seriously affect the health of human beings, livestock and poultry and lead to high economic and medical costs. Extracellular vesicles (EVs) are membranous structures formed through biological processes that play important roles in immune regulation. Studies have shown that parasites transmit information to hosts through EVs to modulate host immune responses. The major roles played by EVs released from parasites involve facilitating parasitization of the host. In this review, we discuss relevant recently obtained data on EVs secreted by different kinds of protozoa, including their molecular mechanisms, and discuss the roles played by EVs in the occurrence and development of parasitic diseases.
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Affiliation(s)
- Xinlei Wang
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Jilin University, Changchun, China
| | - Jie Chen
- Institute of Theoretical Chemistry, Jilin University, Changchun, China
| | - Jingtong Zheng
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, China
- *Correspondence: Jingtong Zheng,
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Rigo GV, Joaquim AR, Macedo AJ, de Andrade SF, Tasca T. Iron chelation and inhibition of metallopeptidases mediate anti-Trichomonas vaginalis activity by a novel 8-hydroxyquinoline derivative. Bioorg Chem 2022; 125:105912. [DOI: 10.1016/j.bioorg.2022.105912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 04/24/2022] [Accepted: 05/23/2022] [Indexed: 11/02/2022]
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Olajide JS, Xiong L, Yang S, Qu Z, Xu X, Yang B, Wang J, Liu B, Ma X, Cai J. Eimeria falciformis secretes extracellular vesicles to modulate proinflammatory response during interaction with mouse intestinal epithelial cells. Parasit Vectors 2022; 15:245. [PMID: 35804396 PMCID: PMC9270845 DOI: 10.1186/s13071-022-05364-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Protozoan parasite secretions can be triggered by various modified media and diverse physicochemical stressors. Equally, host-parasite interactions are known to co-opt the exchange and secretion of soluble biochemical components. Analysis of Eimeria falciformis sporozoite secretions in response to interaction with mouse intestinal epithelial cells (MIECs) may reveal parasite secretory motifs, protein composition and inflammatory activities of E. falciformis extracellular vesicles (EVs). METHODS Eimeria falciformis sporozoites were allowed to interact with inactivated MIECs. Parasite secretions were separated into EV and vesicle-free (VF) fractions by discontinuous centrifugation and ultracentrifugation. Secreted EVs were purified in an iodixanol density gradient medium and the protein composition of both EV and VF fractions were analyzed by liquid chromatoraphy-tandem mass spectroscopy. The inflammatory activities of E. falciformis sporozoite EV on MIECs were then investigated. RESULTS During the interaction of E. falciformis sporozoites with inactivated MIECs, the parasite secreted VF and vesicle-bound molecules. Eimeria falciformis vesicles are typical pathogenic protozoan EVs with a mean diameter of 264 ± 2 nm, and enclosed heat shock protein (Hsp) 70 as classical EV marker. Refractile body-associated aspartyl proteinase (or eimepsin), GAP45 and aminopeptidase were the main components of E. falciformis sporozoite EVs, while VF proteins include Hsp90, actin, Vps54 and kinases, among others. Proteomic data revealed that E. falciformis EV and VF proteins are aggregates of bioactive, antigenic and immunogenic molecules which act in concert for E. falciformis sporozoite motility, pathogenesis and survival. Moreover, in MIECs, E. falciformis EVs induced upregulation of gene expression and secretion of IL-1β, IL-6, IL-17, IL-18, MCP1 as well as pyroptosis-dependent caspase 11 and NLRP6 inflammasomes with the concomitant secretion of lactate dehydrogenase. CONCLUSIONS Eimeria falciformis sporozoite interaction with MIECs triggered the secretion of immunogenic and antigenic proteins. In addition, E. falciformis sporozoite EVs constitute parasite-associated molecular pattern that induced inflammatory response and cell death. This study offers additional insight in the secretion and protein composition of E. falciformis secretomes as well as the proinflammatory functions of E. falciformis sporozoite EVs.
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Affiliation(s)
- Joshua Seun Olajide
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
- Centre for Distance Learning, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Ling Xiong
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Shunli Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Zigang Qu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Xiao Xu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Bin Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Jing Wang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Baohong Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Xueting Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
| | - Jianping Cai
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 China
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Abstract
Trichomonas vaginalis can host the endosymbiont Mycoplasma hominis, an opportunistic pathogenic bacterium capable of modulating T. vaginalis pathobiology. Recently, a new noncultivable mycoplasma, "Candidatus Mycoplasma girerdii," has been shown to be closely associated with women affected by trichomoniasis, suggesting a biological association. Although several features of "Ca. M. girerdii" have been investigated through genomic analysis, the nature of the potential T. vaginalis-"Ca. M. girerdii" consortium and its impact on the biology and pathogenesis of both microorganisms have not yet been explored. Here, we investigate the association between "Ca. M. girerdii" and T. vaginalis isolated from patients affected by trichomoniasis, demonstrating their intracellular localization. By using an in vitro model system based on single- and double-Mycoplasma infection of Mycoplasma-free isogenic T. vaginalis, we investigated the ability of the protist to establish a relationship with the bacteria and impact T. vaginalis growth. Our data indicate likely competition between M. hominis and "Ca. M. girerdii" while infecting trichomonad cells. Comparative dual-transcriptomics data showed major shifts in parasite gene expression in response to the presence of Mycoplasma, including genes associated with energy metabolism and pathogenesis. Consistent with the transcriptomics data, both parasite-mediated hemolysis and binding to host epithelial cells were significantly upregulated in the presence of either Mycoplasma species. Taken together, these results support a model in which this microbial association could modulate the virulence of T. vaginalis. IMPORTANCE T. vaginalis and M. hominis form a unique case of endosymbiosis that modulates the parasite's pathobiology. Recently, a new nonculturable mycoplasma species ("Candidatus Mycoplasma girerdii") has been described as closely associated with the protozoon. Here, we report the characterization of this endosymbiotic relationship. Clinical isolates of the parasite demonstrate that mycoplasmas are common among trichomoniasis patients. The relationships are studied by devising an in vitro system of single and/or double infections in isogenic protozoan recipients. Comparative growth experiments and transcriptomics data demonstrate that the composition of different microbial consortia influences the growth of the parasite and significantly modulates its transcriptomic profile, including metabolic enzymes and virulence genes such as adhesins and pore-forming proteins. The data on modulation from RNA sequencing (RNA-Seq) correlated closely with those of the cytopathic effect and adhesion to human target cells. We propose the hypothesis that the presence and the quantitative ratios of endosymbionts may contribute to modulating protozoan virulence. Our data highlight the importance of considering pathogenic entities as microbial ecosystems, reinforcing the importance of the development of integrated diagnostic and therapeutic strategies.
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Lorenzo-Benito S, Rivera-Rivas LA, Sánchez-Ayala L, Ortega-López J, Montes-Flores O, Talamás-Lara D, Arroyo R. Omics Analyses of Trichomonas vaginalis Actin and Tubulin and Their Participation in Intercellular Interactions and Cytokinesis. Genes (Basel) 2022; 13:genes13061067. [PMID: 35741829 PMCID: PMC9222396 DOI: 10.3390/genes13061067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/04/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
Actin and tubulin proteins from Trichomonas vaginalis are crucial for morphogenesis and mitosis. This parasite has 10 and 11 genes coding bonafide actin and tubulin proteins, respectively. Hence, the goal of this work was to analyze these actin and tubulin genes, their expression at the mRNA and protein levels, and their parasite localization in intercellular interaction and cytokinesis. Representative bonafide actin (tvact1) and tubulin (tvtubα1) genes were cloned into and expressed in Escherichia coli. The recombinant proteins TvACT1r and TvTUBα1r were affinity purified and used as antigens to produce polyclonal antibodies. These antibodies were used in 1DE and 2DE WB and indirect immunofluorescence assays (IFA). By IFA, actin was detected as a ring on the periphery of ameboid, ovoid, and cold-induced cyst-like parasites, on pseudopods of amoeboid parasites, and in cytoplasmic extensions (filopodia) in cell–cell interactions. Tubulin was detected in the axostyle, flagellum, undulating membrane, and paradesmose during mitosis. Paradesmose was observed by IFA mainly during cytokinesis. By scanning electron microscopy, a tubulin-containing nanotubular structure similar to the tunneling nanotubes (TNTs) was also detected in the last stage of cytokinesis. In conclusion, actin and tubulin are multigene families differentially expressed that play important roles in intercellular interactions and cytokinesis.
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Affiliation(s)
- Sebastián Lorenzo-Benito
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (S.L.-B.); (L.A.R.-R.); (L.S.-A.); (D.T.-L.)
| | - Luis Alberto Rivera-Rivas
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (S.L.-B.); (L.A.R.-R.); (L.S.-A.); (D.T.-L.)
| | - Lizbeth Sánchez-Ayala
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (S.L.-B.); (L.A.R.-R.); (L.S.-A.); (D.T.-L.)
| | - Jaime Ortega-López
- Departamento de Biotecnología y Bioingeniería, CINVESTAV-IPN. Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (J.O.-L.); (O.M.-F.)
| | - Octavio Montes-Flores
- Departamento de Biotecnología y Bioingeniería, CINVESTAV-IPN. Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (J.O.-L.); (O.M.-F.)
| | - Daniel Talamás-Lara
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (S.L.-B.); (L.A.R.-R.); (L.S.-A.); (D.T.-L.)
| | - Rossana Arroyo
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. IPN #2508, Col. San Pedro Zacatenco, Alcaldía Gustavo A. Madero, Mexico City CP 07360, Mexico; (S.L.-B.); (L.A.R.-R.); (L.S.-A.); (D.T.-L.)
- Correspondence: ; Tel.: +52-55-5747-3342
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Extracellular Vesicles from Naegleria fowleri Induce IL-8 Response in THP-1 Macrophage. Pathogens 2022; 11:pathogens11060632. [PMID: 35745486 PMCID: PMC9231210 DOI: 10.3390/pathogens11060632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 11/17/2022] Open
Abstract
Extracellular vesicles (EVs) released from pathogenic protozoans play crucial roles in host–parasite communication and disease pathogenesis. Naegleria fowleri is a free-living protozoan causing primary amoebic meningoencephalitis, a fatal disease in the central nervous system. This study aims to explore the roles of N. fowleri-derived EVs (Nf-EVs) in host–pathogen interactions using the THP-1 cell line as a model. The Nf-EVs were isolated from the N. fowleri trophozoite culture supernatant using sequential centrifugation and characterized by nanoparticle tracking analysis and transmission electron microscopy. The functional roles of Nf-EVs in the apoptosis and immune response induction of THP-1 monocytes and macrophages were examined by flow cytometry, quantitative PCR, and ELISA. Results showed that Nf-EVs displayed vesicles with bilayer membrane structure approximately 130–170 nm in diameter. The Nf-EVs can be internalized by macrophages and induce macrophage responses by induction of the expression of costimulatory molecules CD80, CD86, HLA-DR, and CD169 and the production of cytokine IL-8. However, Nf-EVs did not affect the apoptosis of macrophages. These findings illustrate the potential role of Nf-EVs in mediating the host immune cell activation and disease pathogenesis.
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Rada P, Hrdý I, Zdrha A, Narayanasamy RK, Smutná T, Horáčková J, Harant K, Beneš V, Ong SC, Tsai CY, Luo HW, Chiu CH, Tang P, Tachezy J. Double-Stranded RNA Viruses Are Released From Trichomonas vaginalis Inside Small Extracellular Vesicles and Modulate the Exosomal Cargo. Front Microbiol 2022; 13:893692. [PMID: 35602021 PMCID: PMC9114709 DOI: 10.3389/fmicb.2022.893692] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Trichomonas vaginalis is a parasitic protist that infects the human urogenital tract. During the infection, trichomonads adhere to the host mucosa, acquire nutrients from the vaginal/prostate environment, and release small extracellular vesicles (sEVs) that contribute to the trichomonad adherence and modulate the host-parasite communication. Approximately 40–70% of T. vaginalis strains harbor a double-stranded RNA virus called Trichomonasvirus (TVV). Naked TVV particles have the potential to stimulate a proinflammatory response in human cells, however, the mode of TVV release from trichomonads to the environment is not clear. In this report, we showed for the first time that TVV particles are released from T. vaginalis cells within sEVs. The sEVs loaded with TVV stimulated a higher proinflammatory response of human HaCaT cells in comparison to sEVs from TVV negative parasites. Moreover, a comparison of T. vaginalis isogenic TVV plus and TVV minus clones revealed a significant impact of TVV infection on the sEV proteome and RNA cargo. Small EVs from TVV positive trichomonads contained 12 enriched and 8 unique proteins including membrane-associated BspA adhesine, and about a 2.5-fold increase in the content of small regulatory tsRNA. As T. vaginalis isolates are frequently infected with TVV, the release of TVV via sEVs to the environment represents an important factor with the potential to enhance inflammation-related pathogenesis during trichomoniasis.
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Affiliation(s)
- Petr Rada
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Ivan Hrdý
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Alois Zdrha
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Ravi Kumar Narayanasamy
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Tamara Smutná
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Jana Horáčková
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Karel Harant
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
| | - Vladimír Beneš
- Genomics Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Seow-Chin Ong
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Yu Tsai
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hong-Wei Luo
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Hsun Chiu
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Petrus Tang
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Jan Tachezy
- Department of Parasitology, Faculty of Science, Charles University, Biotechnology and Biomedicine Center in Vestec (BIOCEV), Vestec, Czechia
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Ong SC, Cheng WH, Ku FM, Tsai CY, Huang PJ, Lee CC, Yeh YM, Rada P, Hrdý I, Narayanasamy RK, Smutná T, Lin R, Luo HW, Chiu CH, Tachezy J, Tang P. Identification of Endosymbiotic Virus in Small Extracellular Vesicles Derived from Trichomonas vaginalis. Genes (Basel) 2022; 13:genes13030531. [PMID: 35328084 PMCID: PMC8951798 DOI: 10.3390/genes13030531] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 02/07/2023] Open
Abstract
Accumulated evidence suggests that the endosymbiotic Trichomonasvirus (TVV) may play a role in the pathogenesis and drug susceptibility of Trichomonas vaginalis. Several reports have shown that extracellular vesicles (EVs) released from TVV-positive (TVV+) trichomonads can modulate the immune response in human vaginal epithelial cells and animal models. These results prompted us to examine whether EVs released from TVV+ isolates contained TVV. We isolated small extracellular vesicles (sEVs) from six T. vaginalis isolates that were either TVV free (ATCC 50143), harbored a single (ATCC 30236, ATCC 30238, T1), two (ATCC PRA-98), or three TVV subspecies (ATCC 50148). The presence of TVV subspecies in the six isolates was observed using reverse transcription-polymerase chain reaction (RT-PCR). Transmission electron microscopy (TEM) confirmed the presence of cup-shaped sEVs with a size range from 30–150 nm. Trichomonas vaginalis tetraspanin (TvTSP1; TVAG_019180), the classical exosome marker, was identified in all the sEV preparations. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis showed that all the sEVs isolated from TVV+ isolates contain viral capsid proteins derived from the same TVV subspecies in that isolate as demonstrated by RT-PCR. To provide more comprehensive information on the TVV subspecies population in other T. vaginalis isolates, we investigated the distribution of TVV subspecies in twenty-four isolates by mining the New-Generation Sequencing (NGS) RNAseq datasets. Our results should be beneficial for future studies investigating the role of TVV on the pathogenicity of T. vaginalis and the possible transmission of virus subspecies among different isolates via sEVs.
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Affiliation(s)
- Seow-Chin Ong
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.-C.O.); (F.-M.K.); (C.-Y.T.); (R.L.); (H.-W.L.)
| | - Wei-Hung Cheng
- Department of Medical Laboratory Science, College of Medical Science and Technology, I-Shou University, Kaohsiung 824, Taiwan;
| | - Fu-Man Ku
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.-C.O.); (F.-M.K.); (C.-Y.T.); (R.L.); (H.-W.L.)
| | - Chih-Yu Tsai
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.-C.O.); (F.-M.K.); (C.-Y.T.); (R.L.); (H.-W.L.)
| | - Po-Jung Huang
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Guishan District, Taoyuan 333, Taiwan;
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan; (C.-C.L.); (Y.-M.Y.)
| | - Chi-Ching Lee
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan; (C.-C.L.); (Y.-M.Y.)
- Department of Computer Science and Information Engineering, College of Engineering, Chang Gung University, Taoyuan 333, Taiwan
| | - Yuan-Ming Yeh
- Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan; (C.-C.L.); (Y.-M.Y.)
| | - Petr Rada
- Department of Parasitology, Faculty of Science, Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University in Vestec (BIOCEV), Průmyslová 595, 252 42 Vestec, Czech Republic; (P.R.); (I.H.); (R.K.N.); (T.S.)
| | - Ivan Hrdý
- Department of Parasitology, Faculty of Science, Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University in Vestec (BIOCEV), Průmyslová 595, 252 42 Vestec, Czech Republic; (P.R.); (I.H.); (R.K.N.); (T.S.)
| | - Ravi Kumar Narayanasamy
- Department of Parasitology, Faculty of Science, Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University in Vestec (BIOCEV), Průmyslová 595, 252 42 Vestec, Czech Republic; (P.R.); (I.H.); (R.K.N.); (T.S.)
| | - Tamara Smutná
- Department of Parasitology, Faculty of Science, Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University in Vestec (BIOCEV), Průmyslová 595, 252 42 Vestec, Czech Republic; (P.R.); (I.H.); (R.K.N.); (T.S.)
| | - Rose Lin
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.-C.O.); (F.-M.K.); (C.-Y.T.); (R.L.); (H.-W.L.)
| | - Hong-Wei Luo
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.-C.O.); (F.-M.K.); (C.-Y.T.); (R.L.); (H.-W.L.)
| | - Cheng-Hsun Chiu
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan;
| | - Jan Tachezy
- Department of Parasitology, Faculty of Science, Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University in Vestec (BIOCEV), Průmyslová 595, 252 42 Vestec, Czech Republic; (P.R.); (I.H.); (R.K.N.); (T.S.)
- Correspondence: (J.T.); (P.T.)
| | - Petrus Tang
- Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan; (S.-C.O.); (F.-M.K.); (C.-Y.T.); (R.L.); (H.-W.L.)
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 333, Taiwan;
- Correspondence: (J.T.); (P.T.)
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Peng R, Santos HJ, Nozaki T. Transfer RNA-Derived Small RNAs in the Pathogenesis of Parasitic Protozoa. Genes (Basel) 2022; 13:genes13020286. [PMID: 35205331 PMCID: PMC8872473 DOI: 10.3390/genes13020286] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 01/25/2023] Open
Abstract
Transfer RNA (tRNA)-derived small RNAs (tsRNAs) are newly identified non-coding small RNAs that have recently attracted attention due to their functional significance in both prokaryotes and eukaryotes. tsRNAs originated from the cleavage of precursor or mature tRNAs by specific nucleases. According to the start and end sites, tsRNAs can be broadly divided into tRNA halves (31–40 nucleotides) and tRNA-derived fragments (tRFs, 14–30 nucleotides). tsRNAs have been reported in multiple organisms to be involved in gene expression regulation, protein synthesis, and signal transduction. As a novel regulator, tsRNAs have also been identified in various protozoan parasites. The conserved biogenesis of tsRNAs in early-branching eukaryotes strongly suggests the universality of this machinery, which requires future research on their shared and potentially disparate biological functions. Here, we reviewed the recent studies of tsRNAs in several representative protozoan parasites including their biogenesis and the roles in parasite biology and intercellular communication. Furthermore, we discussed the remaining questions and potential future works for tsRNAs in this group of organisms.
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Zimmann N, Rada P, Žárský V, Smutná T, Záhonová K, Dacks J, Harant K, Hrdý I, Tachezy J. Proteomic Analysis of Trichomonas vaginalis Phagolysosome, Lysosomal Targeting, and Unconventional Secretion of Cysteine Peptidases. Mol Cell Proteomics 2022; 21:100174. [PMID: 34763061 PMCID: PMC8717582 DOI: 10.1016/j.mcpro.2021.100174] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/25/2021] [Accepted: 11/04/2021] [Indexed: 11/25/2022] Open
Abstract
The lysosome represents a central degradative compartment of eukaryote cells, yet little is known about the biogenesis and function of this organelle in parasitic protists. Whereas the mannose 6-phosphate (M6P)-dependent system is dominant for lysosomal targeting in metazoans, oligosaccharide-independent sorting has been reported in other eukaryotes. In this study, we investigated the phagolysosomal proteome of the human parasite Trichomonas vaginalis, its protein targeting and the involvement of lysosomes in hydrolase secretion. The organelles were purified using Percoll and OptiPrep gradient centrifugation and a novel purification protocol based on the phagocytosis of lactoferrin-covered magnetic nanoparticles. The analysis resulted in a lysosomal proteome of 462 proteins, which were sorted into 21 classes. Hydrolases represented the largest functional class and included proteases, lipases, phosphatases, and glycosidases. Identification of a large set of proteins involved in vesicular trafficking (80) and turnover of actin cytoskeleton rearrangement (29) indicate a dynamic phagolysosomal compartment. Several cysteine proteases such as TvCP2 were previously shown to be secreted. Our experiments showed that secretion of TvCP2 was strongly inhibited by chloroquine, which increases intralysosomal pH, thus indicating that TvCP2 secretion occurs through lysosomes rather than the classical secretory pathway. Unexpectedly, we identified divergent homologues of the M6P receptor TvMPR in the phagolysosomal proteome, although T. vaginalis lacks enzymes for M6P formation. To test whether oligosaccharides are involved in lysosomal targeting, we selected the lysosome-resident cysteine protease CLCP, which possesses two glycosylation sites. Mutation of any of the sites redirected CLCP to the secretory pathway. Similarly, the introduction of glycosylation sites to secreted β-amylase redirected this protein to lysosomes. Thus, unlike other parasitic protists, T. vaginalis seems to utilize glycosylation as a recognition marker for lysosomal hydrolases. Our findings provide the first insight into the complexity of T. vaginalis phagolysosomes, their biogenesis, and role in the unconventional secretion of cysteine peptidases.
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Affiliation(s)
- Nadine Zimmann
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Petr Rada
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Vojtěch Žárský
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Tamara Smutná
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Kristína Záhonová
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic; Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Joel Dacks
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic; Division of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Karel Harant
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Ivan Hrdý
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic
| | - Jan Tachezy
- Department of Parasitology, Faculty of Science, Charles University, BIOCEV, Vestec, Czech Republic.
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Salas N, Coceres VM, Melo TDS, Pereira-Neves A, Maguire VG, Rodriguez TM, Sabatke B, Ramirez MI, Sha J, Wohlschlegel JA, de Miguel N. VPS32, a member of the ESCRT complex, modulates adherence to host cells in the parasite Trichomonas vaginalis by affecting biogenesis and cargo sorting of released extracellular vesicles. Cell Mol Life Sci 2021; 79:11. [PMID: 34951683 PMCID: PMC11073171 DOI: 10.1007/s00018-021-04083-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 12/26/2022]
Abstract
Trichomonas vaginalis is a common sexually transmitted extracellular parasite that adheres to epithelial cells in the human urogenital tract. Extracellular vesicles (EVs) have been described as important players in the pathogenesis of this parasite as they deliver proteins and RNA into host cells and modulate parasite adherence. EVs are heterogeneous membrane vesicles released from virtually all cell types that collectively represent a new dimension of intercellular communication. The Endosomal Sorting Complex Required for Transport (ESCRT) machinery contributes to several key mechanisms in which it reshapes membranes. Based on this, some components of the ESCRT have been implicated in EVs biogenesis in other cells. Here, we demonstrated that VPS32, a member of ESCRTIII complex, contribute to the biogenesis and cargo sorting of extracellular vesicles in the parasite T. vaginalis. Moreover, we observe that parasites overexpressing VPS32 have a striking increase in adherence to host cells compared to control parasites; demonstrating a key role for this protein in mediating host: parasite interactions. These results provide valuable information on the molecular mechanisms involved in extracellular vesicles biogenesis, cargo-sorting, and parasite pathogenesis.
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Affiliation(s)
- Nehuén Salas
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), CONICET-UNSAM, Intendente Marino Km 8.2, B7130IWA, Chascomús, Buenos Aires, Argentina
| | - Veronica M Coceres
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), CONICET-UNSAM, Intendente Marino Km 8.2, B7130IWA, Chascomús, Buenos Aires, Argentina
| | - Tuanne Dos Santos Melo
- Departamento de Microbiologia, Instituto Aggeu Magalhães, Fiocruz, Recife, Pernambuco, Brazil
| | - Antonio Pereira-Neves
- Departamento de Microbiologia, Instituto Aggeu Magalhães, Fiocruz, Recife, Pernambuco, Brazil
| | - Vanina G Maguire
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), CONICET-UNSAM, Intendente Marino Km 8.2, B7130IWA, Chascomús, Buenos Aires, Argentina
| | - Tania M Rodriguez
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), CONICET-UNSAM, Intendente Marino Km 8.2, B7130IWA, Chascomús, Buenos Aires, Argentina
| | - Bruna Sabatke
- Laboratorio de Biologia Molecular e Sistémica de Tripanossomatideos, Instituto Carlos Chagas, Fiocruz Curitiba, Parana, Brazil
| | - Marcel I Ramirez
- Laboratorio de Biologia Molecular e Sistémica de Tripanossomatideos, Instituto Carlos Chagas, Fiocruz Curitiba, Parana, Brazil
| | - Jihui Sha
- Department of Biological Chemistry, University of California, Los Angeles, CA, 90095-1489, USA
| | - James A Wohlschlegel
- Department of Biological Chemistry, University of California, Los Angeles, CA, 90095-1489, USA
| | - Natalia de Miguel
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), CONICET-UNSAM, Intendente Marino Km 8.2, B7130IWA, Chascomús, Buenos Aires, Argentina.
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Coceres VM, Iriarte LS, Miranda-Magalhães A, Santos de Andrade TA, de Miguel N, Pereira-Neves A. Ultrastructural and Functional Analysis of a Novel Extra-Axonemal Structure in Parasitic Trichomonads. Front Cell Infect Microbiol 2021; 11:757185. [PMID: 34858875 PMCID: PMC8630684 DOI: 10.3389/fcimb.2021.757185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/19/2021] [Indexed: 12/28/2022] Open
Abstract
Trichomonas vaginalis and Tritrichomonas foetus are extracellular flagellated parasites that inhabit humans and other mammals, respectively. In addition to motility, flagella act in a variety of biological processes in different cell types, and extra-axonemal structures (EASs) have been described as fibrillar structures that provide mechanical support and act as metabolic, homeostatic, and sensory platforms in many organisms. It has been assumed that T. vaginalis and T. foetus do not have EASs. However, here, we used complementary electron microscopy techniques to reveal the ultrastructure of EASs in both parasites. Such EASs are thin filaments (3-5 nm diameter) running longitudinally along the axonemes and surrounded by the flagellar membrane, forming prominent flagellar swellings. We observed that the formation of EAS increases after parasite adhesion on the host cells, fibronectin, and precationized surfaces. A high number of rosettes, clusters of intramembrane particles that have been proposed as sensorial structures, and microvesicles protruding from the membrane were observed in the EASs. Our observations demonstrate that T. vaginalis and T. foetus can connect to themselves by EASs present in flagella. The protein VPS32, a member of the ESCRT-III complex crucial for diverse membrane remodeling events, the pinching off and release of microvesicles, was found in the surface as well as in microvesicles protruding from EASs. Moreover, we demonstrated that the formation of EAS also increases in parasites overexpressing VPS32 and that T. vaginalis-VPS32 parasites showed greater motility in semisolid agar. These results provide valuable data about the role of the flagellar EASs in the cell-to-cell communication and pathogenesis of these extracellular parasites.
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Affiliation(s)
- Veronica M Coceres
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de General San Martín (CONICET-UNSAM), Chascomús, Argentina
| | - Lucrecia S Iriarte
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de General San Martín (CONICET-UNSAM), Chascomús, Argentina
| | | | | | - Natalia de Miguel
- Laboratorio de Parásitos Anaerobios, Instituto Tecnológico Chascomús (INTECH), Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de General San Martín (CONICET-UNSAM), Chascomús, Argentina
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Rangel-Mata FJ, Ávila-Muro EE, Reyes-Martínez JE, Olmos-Ortiz LM, Brunck ME, Arriaga-Pizano LA, Cuéllar-Mata P. Immune cell arrival kinetics to peritoneum and role during murine-experimental trichomoniasis. Parasitology 2021; 148:1624-1635. [PMID: 35060469 PMCID: PMC11010205 DOI: 10.1017/s0031182021001311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/09/2021] [Accepted: 07/15/2021] [Indexed: 01/07/2023]
Abstract
Trichomonas vaginalis causes trichomoniasis, an inflammatory process related to an increased rate of HIV transmission. In order to study T. vaginalis infection response in a microorganism-free environment, an infection model was established providing a host–parasite interaction system useful to study the interplay between immune cells and the parasite. Infected mice peritoneal cells were immunophenotyped at different times after infection using flow cytometry. Neutrophils and macrophages showed the most relevant increase from third to 12th day post-infection. A high number of B lymphocytes were present on 15th day post-infection, and an increase in memory T cells was observed on sixth day post-infection. The levels of NO increased at day 10 post-infection; no significant influence was observed on T. vaginalis clearance. Increased viability of T. vaginalis was observed when the NETs inhibitors, metformin and Cl− amidine, were administrated, highlighting the importance of this mechanism to control parasite infection (43 and 86%, respectively). This report presents a comprehensive cell count of the immune cells participating against trichomoniasis in an in vivo interaction system. These data highlight the relevance of innate mechanisms such as specific population changes of innate immune cells and their impact on the T. vaginalis viability.
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Affiliation(s)
- F. J. Rangel-Mata
- Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
| | - E. E. Ávila-Muro
- Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
| | | | - L. M. Olmos-Ortiz
- Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
| | - M. E. Brunck
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Monterrey, Mexico
| | | | - P. Cuéllar-Mata
- Departamento de Biología, Universidad de Guanajuato, Guanajuato, Mexico
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Wei R, Li X, Wang X, Zhang N, Wang Y, Zhang X, Gong P, Li J. Trypanosoma evansi evades host innate immunity by releasing extracellular vesicles to activate TLR2-AKT signaling pathway. Virulence 2021; 12:2017-2036. [PMID: 34348595 PMCID: PMC8344757 DOI: 10.1080/21505594.2021.1959495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Surra, one of the most important animal diseases with economic consequences in Asia and South America, is caused by Trypanosoma evansi. However, the mechanism of immune evasion by T. evansi has not been extensively studied. In the present study, T. evansi extracellular vesicles (TeEVs) were characterized and the role of TeEVs in T. evansi infection were examined. The results showed that T. evansi and TeEVs could activate TLR2-AKT pathway to inhibit the secretions of IL-12p40, IL-6, and TNF-α in mouse BMDMs. TLR2−/- mice and mice with a blocked AKT pathway were more resistant to T. evansi infection than wild type (WT) mice, with a significantly lower infection rate, longer survival time and less parasite load, as well as an increased secretion level of IL-12p40 and IFN-γ. Kinetoplastid membrane protein-11 (KMP-11) of TeEVs could activate AKT pathway and inhibit the productions of IL-12p40, TNF-α, and IL-6 in vitro. TeEVs and KMP-11 could inhibit the productions of IL-12p40 and IFN-γ, promote T. evansi proliferation and shorten the survival time of infected mice in vivo. In conclusion, T. evansi could escape host immune response through inhibiting the productions of inflammatory cytokines via secreting TeEVs to activate TLR2-AKT pathway. KMP-11 in TeEVs was involved in promoting T. evansi infection. Extracellular vesicles (EVs) secreted by Trypanosoma evansi (T. evansi) activate the TLR2-AKT signaling pathway to inhibit the production of inflammatory cytokines, thereby escaping the host’s immune response. Kinetoplastid membrane protein-11 (KMP-11) in EVs is related to the promotion of T.evansi infection via AKT pathway.
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Affiliation(s)
- Ran Wei
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xin Li
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yuru Wang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jianhua Li
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
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42
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Zhao P, Cao L, Wang X, Li J, Dong J, Zhang N, Li X, Li S, Sun M, Zhang X, Liang M, Pu X, Gong P. Giardia duodenalis extracellular vesicles regulate the proinflammatory immune response in mouse macrophages in vitro via the MAPK, AKT and NF-κB pathways. Parasit Vectors 2021; 14:358. [PMID: 34238339 PMCID: PMC8268305 DOI: 10.1186/s13071-021-04865-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/28/2021] [Indexed: 12/15/2022] Open
Abstract
Background Giardia duodenalis is an extracellular protozoan parasite that causes giardiasis in mammals. The presentation of giardiasis ranges from asymptomatic to severe diarrhea, and the World Health Organization lists it in the Neglected Diseases Initiative. Extracellular vesicles (EVs) are a key mediator of intracellular communication. Although previous studies have shown that G. intestinalis can regulate a host’s innate immune response, the role of G. intestinalis EVs (GEVs) in triggering a G. intestinalis-induced innate immune response remains to be further explored. Methods In this study, GEVs, G. intestinalis and GEVs + G. intestinalis were inoculated into macrophages, respectively. The transcription and secretion levels of proinflammatory cytokines, including interleukin (IL)-1β, IL-6 and tumor necrosis factor alpha (TNF-α), were measured using real-time quantitative PCR (qPCR) and enzyme-linked immunosorbent assays (ELISAs). The phosphorylation levels of the MAPK, AKT and NF-κB signaling pathways in GEV-stimulated mouse macrophages were examined using western blotting and immunofluorescence methods. The roles of activated pathways in the GEV-triggered inflammatory response were determined using inhibition assays, western blotting and ELISAs. Results The results showed that pretreatment with GEVs enhanced with G. intestinalis (GEVs + G. intestinalis) induced IL-1β, IL-6 and TNF-α transcription and secretion from mouse macrophages compared to stimulation with either GEVs or G. intestinalis alone. Inoculation of mouse macrophages with GEVs upregulated the phosphorylation levels of the p38 MAPK, p44/42 MAPK (Erk1/2), AKT and NF-κB signaling pathways and led to the nuclear translocation of NF-κB p65. Blocking the activated p38, Erk and NF-κB signaling pathways significantly downregulated the secretion of proinflammatory cytokines, and blocking the activated AKT signaling pathway demonstrated reverse effects. Conclusions The results of this study reveal that GEVs can enhance G. intestinalis-induced inflammatory response levels in mouse macrophages through activation of the p38, ERK and NF-κB signaling pathways. The role of GEVs in regulating host cell immune responses may provide insights into exploring the underlying mechanisms in G. intestinalis–host interactions. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-021-04865-5.
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Affiliation(s)
- Panpan Zhao
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China.,Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Lili Cao
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China.,Jilin Academy of Animal Husbandry and Veterinary Medicine, Changchun, 130062, People's Republic of China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Jianhua Li
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Jingquan Dong
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China.,Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Nan Zhang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Xin Li
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Shan Li
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Min Sun
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Xichen Zhang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Min Liang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Xudong Pu
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China
| | - Pengtao Gong
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, People's Republic of China.
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Ferla M, Tasca T. The Role of Purinergic Signaling in Trichomonas vaginalis Infection. Curr Top Med Chem 2021; 21:181-192. [PMID: 32888270 DOI: 10.2174/1568026620999200904122212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/25/2020] [Accepted: 08/14/2020] [Indexed: 11/22/2022]
Abstract
Trichomoniasis, one of the most common non-viral sexually transmitted infections worldwide, is caused by the parasite Trichomonas vaginalis. The pathogen colonizes the human urogenital tract, and the infection is associated with complications such as adverse pregnancy outcomes, cervical cancer, and an increase in HIV transmission. The mechanisms of pathogenicity are multifactorial, and controlling immune responses is essential for infection maintenance. Extracellular purine nucleotides are released by cells in physiological and pathological conditions, and they are hydrolyzed by enzymes called ecto-nucleotidases. The cellular effects of nucleotides and nucleosides occur via binding to purinoceptors, or through the uptake by nucleoside transporters. Altogether, enzymes, receptors and transporters constitute the purinergic signaling, a cellular network that regulates several effects in practically all systems including mammals, helminths, protozoa, bacteria, and fungi. In this context, this review updates the data on purinergic signaling involved in T. vaginalis biology and interaction with host cells, focusing on the characterization of ecto-nucleotidases and on purine salvage pathways. The implications of the final products, the nucleosides adenosine and guanosine, for human neutrophil response and vaginal epithelial cell damage reveal the purinergic signaling as a potential new mechanism for alternative drug targets.
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Affiliation(s)
- Micheli Ferla
- Research Team on Trichomonas, Pharmaceutical Sciences Graduation Program, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Tiana Tasca
- Research Team on Trichomonas, Pharmaceutical Sciences Graduation Program, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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44
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Jeong MJ, Kang SA, Choi JH, Lee DI, Yu HS. Extracellular vesicles of Echinococcus granulosus have therapeutic effects in allergic airway inflammation. Parasite Immunol 2021; 43:e12872. [PMID: 34174101 DOI: 10.1111/pim.12872] [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: 03/17/2021] [Revised: 06/02/2021] [Accepted: 06/18/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Previous studies have shown that Echinococcus granulosus cystic fluid can alleviate Th2 allergic airway inflammatory responses by increasing the number of CD4+ CD25+ Foxp3+ T (regulatory T; Treg) cells. Parasite-derived extracellular vesicles (EV) are known to not only promote parasite infection by communicating between parasites but also regulate the inflammatory response by acting as an immunomodulatory agent in the host. METHODS To evaluate the effect of EV extracted from the cystic fluid of E. granulosus on allergic airway inflammation, gene expression was investigated after administering EV to mouse lung epithelial cells (MLE-12) following 2 h of pretreatment with Aspergillus proteins. An allergic airway inflammation animal model was used to investigate the regulation of the inflammatory response by EV and induced with ovalbumin. RESULTS EV treatment significantly reduced airway resistance and the number of eosinophils and other immune cells in the bronchoalveolar lavage fluid and Th2- and Th17-related cytokine levels. EV pretreatment decreased the number of IL-4+ CD4+ T cells and increased the number of Treg cells in the lung-draining lymph nodes and spleen. CONCLUSIONS Echinococcus granulosus cystic fluid derived EV ameliorated Th2 allergic airway inflammatory through Treg cells, similar to whole cystic fluid treatment. Thus, EV may be important immunomodulatory molecules in cystic fluid.
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Affiliation(s)
- Mi Jin Jeong
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Shin Ae Kang
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Jun Ho Choi
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Da In Lee
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Hak Sun Yu
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
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45
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Luo M, Xu L, Qian Z, Sun X. Infection-Associated Thymic Atrophy. Front Immunol 2021; 12:652538. [PMID: 34113341 PMCID: PMC8186317 DOI: 10.3389/fimmu.2021.652538] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/07/2021] [Indexed: 12/17/2022] Open
Abstract
The thymus is a vital organ of the immune system that plays an essential role in thymocyte development and maturation. Thymic atrophy occurs with age (physiological thymic atrophy) or as a result of viral, bacterial, parasitic or fungal infection (pathological thymic atrophy). Thymic atrophy directly results in loss of thymocytes and/or destruction of the thymic architecture, and indirectly leads to a decrease in naïve T cells and limited T cell receptor diversity. Thus, it is important to recognize the causes and mechanisms that induce thymic atrophy. In this review, we highlight current progress in infection-associated pathogenic thymic atrophy and discuss its possible mechanisms. In addition, we discuss whether extracellular vesicles/exosomes could be potential carriers of pathogenic substances to the thymus, and potential drugs for the treatment of thymic atrophy. Having acknowledged that most current research is limited to serological aspects, we look forward to the possibility of extending future work regarding the impact of neural modulation on thymic atrophy.
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Affiliation(s)
- Mingli Luo
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Lingxin Xu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Zhengyu Qian
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Xi Sun
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
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Srivatsav AT, Kapoor S. The Emerging World of Membrane Vesicles: Functional Relevance, Theranostic Avenues and Tools for Investigating Membrane Function. Front Mol Biosci 2021; 8:640355. [PMID: 33968983 PMCID: PMC8101706 DOI: 10.3389/fmolb.2021.640355] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
Lipids are essential components of cell membranes and govern various membrane functions. Lipid organization within membrane plane dictates recruitment of specific proteins and lipids into distinct nanoclusters that initiate cellular signaling while modulating protein and lipid functions. In addition, one of the most versatile function of lipids is the formation of diverse lipid membrane vesicles for regulating various cellular processes including intracellular trafficking of molecular cargo. In this review, we focus on the various kinds of membrane vesicles in eukaryotes and bacteria, their biogenesis, and their multifaceted functional roles in cellular communication, host-pathogen interactions and biotechnological applications. We elaborate on how their distinct lipid composition of membrane vesicles compared to parent cells enables early and non-invasive diagnosis of cancer and tuberculosis, while inspiring vaccine development and drug delivery platforms. Finally, we discuss the use of membrane vesicles as excellent tools for investigating membrane lateral organization and protein sorting, which is otherwise challenging but extremely crucial for normal cellular functioning. We present current limitations in this field and how the same could be addressed to propel a fundamental and technology-oriented future for extracellular membrane vesicles.
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Affiliation(s)
- Aswin T. Srivatsav
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Shobhna Kapoor
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
- Wadhwani Research Center of Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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Mwangi SJ, Gwela A, Mwikali K, Bargul JL, Nduati EW, Ndungu FM, Bejon P, Rayner JC, Abdi AI. Impact of Plasmodium falciparum small-sized extracellular vesicles on host peripheral blood mononuclear cells. Wellcome Open Res 2021. [DOI: 10.12688/wellcomeopenres.16131.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Exagerated immune activation has a key role in the pathogenesis of malaria. During blood-stage infection, Plasmodium falciparum can interact directly with host immune cells through infected red blood cells (PfiRBCs), or indirectly by the release of extracellular vesicles (EVs). Here, we compared the impact of PfiRBCs and P. falciparum small-sized EVs (PfsEVs, also known as exosomes) from a Kenyan clinical isolate (PfKE12) adapted to short-term laboratory culture conditions on host peripheral blood mononuclear cells (PBMC). Methods: PfsEVs were isolated from cell-free culture-conditioned media by ultracentrifugation while mature trophozoite PfiRBCs were purified by magnetic column separation. The PfsEVs and the PfiRBCs were co-cultured for 18 hours with PBMC. Cellular responses were quantified by cell surface expression of activation markers (CD25, CD69) and cytokine/chemokine levels in the supernatant. Results: Relative to negative control conditions, PfsEVs induced CD25 expression on CD4+, CD19+ and CD14+ cells, while PfiRBCs induced on CD19+ and CD14+ cells. Both PfsEVs and PfiRBCs induced CD69 on CD4+, CD8+ and CD19+ cells. In addition, PfiRBCs induced higher expression of CD69 on CD14+ cells. CD69 induced by PfiRBCs on CD4+ and CD19+ cells was significantly higher than that induced by PfsEVs. Secretion of MIP1α, MIP1β, GM-CSF, IL-6, IL-8, and TNFα were significantly induced by both PfsEVs and PfiRBCs whereas MCP-1, IL-10, IL-17α were preferentially induced by PfsEVs and IP-10 and IFN-γ by PfiRBCs. Prior exposure to malaria (judged by antibodies to schizont extract) was associated with lower monocyte responses to PfsEVs. Conclusions: PfsEVs and PfiRBCs showed differential abilities to induce secretion of IL-17α and IFN-γ, suggesting that the former are better at inducing Th17, whilst the latter induce Th1 immune responses respectively. Prior exposure to malaria significantly reduces the ability of PfsEVs to activate monocytes, suggesting immune tolerance to PfsEVs may play a role in naturally acquired anti-disease immunity.
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Zhao P, Cao L, Wang X, Dong J, Zhang N, Li X, Li J, Zhang X, Gong P. Extracellular vesicles secreted by Giardia duodenalis regulate host cell innate immunity via TLR2 and NLRP3 inflammasome signaling pathways. PLoS Negl Trop Dis 2021; 15:e0009304. [PMID: 33798196 PMCID: PMC8046354 DOI: 10.1371/journal.pntd.0009304] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 04/14/2021] [Accepted: 03/10/2021] [Indexed: 02/07/2023] Open
Abstract
Giardia duodenalis, also known as G. intestinalis or G. lamblia, is the major cause of giardiasis leading to diarrheal disease with 280 million people infections annually worldwide. Extracellular vesicles (EVs) have emerged as a ubiquitous mechanism participating in cells communications. The aim of this study is to explore the roles of G. duodenalis EVs (GEVs) in host-pathogen interactions using primary mouse peritoneal macrophages as a model. Multiple methods of electron microscopy, nanoparticle tracking analysis, proteomic assays, flow cytometry, immunofluorescence, qPCR, western blot, ELISA, inhibition assays, were used to characterize GEVs, and explore its effects on the host cell innate immunity as well as the underlying mechanism using primary mouse peritoneal macrophages. Results showed that GEVs displayed typical cup-shaped structure with 150 nm in diameter. GEVs could be captured by macrophages and triggered immune response by increasing the production of inflammatory cytokines Il1β, Il6, Il10, Il12, Il17, Ifng, Tnf, Il18, Ccl20 and Cxcl2. Furthermore, activation of TLR2 and NLRP3 inflammasome signaling pathways involved in this process. In addition, CA-074 methyl ester (an inhibitor of cathepsin B) or zVAD-fmk (an inhibitor of pan-caspase) pretreatment entirely diminished these effects triggered by GEVs exposure. Taken together, these findings demonstrated that GEVs could be internalized into mouse peritoneal macrophages and regulate host cell innate immunity via TLR2 and NLRP3 inflammasome signaling pathways. G. duodenalis, one of the most common cause of diarrheal diseases, is widely existed in the contaminated water and threatening the public health especially in developing countries. Along with the increasing resistance to anti-G. duodenalis drugs occurs, new targets against giardiasis are of urgently needed. The innate immune system is the first defense line of organism to resist multiple pathogens invasion through recognizing pathogen-associated molecular patterns (PAMPs) by pattern recognition receptors (PRRs), termed Toll-like receptors (TLRs) on the surface of cell membrane and nucleotide oligomerization domain (Nod)-like receptors (NLRs) inside immune cells. Recently, extracellular vesicles have emerged as a ubiquitous mechanism participating in cells communications. In this study, EVs secreted by extracellular protozoan G. duodenalis were obtained and displayed typical cup-shaped structure with 150 nm in diameter. Moreover, GEVs could enter into primary mouse peritoneal macrophages and regulate host cell innate immunity by up-regulation of various inflammatory cytokines expression. Furthermore, TLR2 and NLRP3 inflammasome signaling pathways involved in this process. This study demonstrated that GEVs could be internalized into primary mouse peritoneal macrophages, regulate host cell innate immunity via TLR2 and NLRP3 inflammasome signaling pathways, and may provide new targets against giardiasis.
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Affiliation(s)
- Panpan Zhao
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Lili Cao
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
- Jilin Academy of Animal Husbandry and Veterinary Medicine, Changchun, China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jingquan Dong
- Jiangsu Key Laboratory of Marine Biological Resources and Environment, Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Nan Zhang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xin Li
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jianhua Li
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
- * E-mail:
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Abstract
Trichomonas vaginalis is an anaerobic/microaerophilic protist parasite which causes trichomoniasis, one of the most prevalent sexually transmitted diseases worldwide. T. vaginalis not only is important as a human pathogen but also is of great biological interest because of its peculiar cell biology and metabolism, in earlier times fostering the erroneous notion that this microorganism is at the root of eukaryotic evolution. This review summarizes the major advances in the last five years in the T. vaginalis field with regard to genetics, molecular biology, ecology, and pathogenicity of the parasite.
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Affiliation(s)
- David Leitsch
- Department of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Vienna, Austria
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50
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Unveiling the role of EVs in anaerobic parasitic protozoa. Mol Immunol 2021; 133:34-43. [PMID: 33621941 DOI: 10.1016/j.molimm.2021.02.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 12/20/2022]
Abstract
The anaerobic or microaerophilic protozoan parasites such as the enteric human pathogens Entamoeba histolytica, Giardia intestinalis, Cryptosporidium parvum, Blastocystis hominis and urogenital tract parasites Trichomonas vaginalis are able to survival in an environment with oxygen deprivation. Despite living in hostile environments these pathogens adopted different strategies to survive within the hosts. Among them, the release of extracellular vesicles (EVs) has become an active endeavor in the study of pathogenesis for these parasites. EVs are heterogenous, membrane-limited structures that have played important roles in cellular communication, transferring information through cargo and modulating the immune system of the host. In this review, we described several aspects of the recently characterized EVs of the anaerobic protozoa, including their role in adhesion, modulation of the immune response and omics analysis to understand the potential of these EVs in the pathogenesis of these diseases caused by anaerobic parasites.
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