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Saleem A, Saleem Bhat S, A. Omonijo F, A Ganai N, M. Ibeagha-Awemu E, Mudasir Ahmad S. Immunotherapy in mastitis: state of knowledge, research gaps and way forward. Vet Q 2024; 44:1-23. [PMID: 38973225 PMCID: PMC11232650 DOI: 10.1080/01652176.2024.2363626] [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: 11/02/2023] [Accepted: 05/27/2024] [Indexed: 07/09/2024] Open
Abstract
Mastitis is an inflammatory condition that affects dairy cow's mammary glands. Traditional treatment approaches with antibiotics are increasingly leading to challenging scenarios such as antimicrobial resistance. In order to mitigate the unwanted side effects of antibiotics, alternative strategies such as those that harness the host immune system response, also known as immunotherapy, have been implemented. Immunotherapy approaches to treat bovine mastitis aims to enhance the cow's immune response against pathogens by promoting pathogen clearance, and facilitating tissue repair. Various studies have demonstrated the potential of immunotherapy for reducing the incidence, duration and severity of mastitis. Nevertheless, majority of reported therapies are lacking in specificity hampering their broad application to treat mastitis. Meanwhile, advancements in mastitis immunotherapy hold great promise for the dairy industry, with potential to provide effective and sustainable alternatives to traditional antibiotic-based approaches. This review synthesizes immunotherapy strategies, their current understanding and potential future perspectives. The future perspectives should focus on the development of precision immunotherapies tailored to address individual pathogens/group of pathogens, development of combination therapies to address antimicrobial resistance, and the integration of nano- and omics technologies. By addressing research gaps, the field of mastitis immunotherapy can make significant strides in the control, treatment and prevention of mastitis, ultimately benefiting both animal and human health/welfare, and environment health.
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Affiliation(s)
- Afnan Saleem
- Division of Animal Biotechnology, SKUAST-K, Srinagar, India
| | | | - Faith A. Omonijo
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Canada
| | | | - Eveline M. Ibeagha-Awemu
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Canada
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Qadeer A, Wajid A, Rafey HA, Nawaz S, Khan S, Rahman SU, Alzahrani KJ, Khan MZ, Alsabi MNS, Ullah H, Safi SZ, Xia Z, Zahoor M. Exploring extracellular vesicles in zoonotic helminth biology: implications for diagnosis, therapeutic and delivery. Front Cell Infect Microbiol 2024; 14:1424838. [PMID: 39165921 PMCID: PMC11333462 DOI: 10.3389/fcimb.2024.1424838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Accepted: 07/03/2024] [Indexed: 08/22/2024] Open
Abstract
Extracellular vesicles (EVs) have emerged as key intercellular communication and pathogenesis mediators. Parasitic organisms' helminths, cause widespread infections with significant health impacts worldwide. Recent research has shed light on the role of EVs in the lifecycle, immune evasion, and disease progression of these parasitic organisms. These tiny membrane-bound organelles including microvesicles and exosomes, facilitate the transfer of proteins, lipids, mRNAs, and microRNAs between cells. EVs have been isolated from various bodily fluids, offering a potential diagnostic and therapeutic avenue for combating infectious agents. According to recent research, EVs from helminths hold great promise in the diagnosis of parasitic infections due to their specificity, early detection capabilities, accessibility, and the potential for staging and monitoring infections, promote intercellular communication, and are a viable therapeutic tool for the treatment of infectious agents. Exploring host-parasite interactions has identified promising new targets for diagnostic, therapy, and vaccine development against helminths. This literature review delves into EVS's origin, nature, biogenesis, and composition in these parasitic organisms. It also highlights the proteins and miRNAs involved in EV release, providing a comprehensive summary of the latest findings on the significance of EVs in the biology of helminths, promising targets for therapeutic and diagnostic biomarkers.
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Affiliation(s)
- Abdul Qadeer
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Abdul Wajid
- Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan
| | - Hafiz Abdul Rafey
- Shifa College of Pharmaceutical Sciences, Faculty of Pharmaceutical and Allied Health Sciences, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Saqib Nawaz
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Sawar Khan
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
| | - Sajid Ur Rahman
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Khalid J. Alzahrani
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Muhammad Zahoor Khan
- College of Agricultural Science and Engineering, Liaocheng University, Liaocheng, Shandong, China
| | - Mohammad Nafi Solaiman Alsabi
- Department of Basic Veterinary Medical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Hanif Ullah
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- West China School of Nursing/West China Hospital, Sichuan University, Chengdu, China
| | - Sher Zaman Safi
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom, Selangor, Malaysia
| | - Zanxian Xia
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Muhammad Zahoor
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
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Pinheiro AAS, Torrecilhas AC, Souza BSDF, Cruz FF, Guedes HLDM, Ramos TD, Lopes‐Pacheco M, Caruso‐Neves C, Rocco PRM. Potential of extracellular vesicles in the pathogenesis, diagnosis and therapy for parasitic diseases. J Extracell Vesicles 2024; 13:e12496. [PMID: 39113589 PMCID: PMC11306921 DOI: 10.1002/jev2.12496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 07/11/2024] [Indexed: 08/11/2024] Open
Abstract
Parasitic diseases have a significant impact on human and animal health, representing a major hazard to the public and causing economic and health damage worldwide. Extracellular vesicles (EVs) have long been recognized as diagnostic and therapeutic tools but are now also known to be implicated in the natural history of parasitic diseases and host immune response modulation. Studies have shown that EVs play a role in parasitic disease development by interacting with parasites and communicating with other types of cells. This review highlights the most recent research on EVs and their role in several aspects of parasite-host interactions in five key parasitic diseases: Chagas disease, malaria, toxoplasmosis, leishmaniasis and helminthiases. We also discuss the potential use of EVs as diagnostic tools or treatment options for these infectious diseases.
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Affiliation(s)
- Ana Acacia Sá Pinheiro
- Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Rio de Janeiro Innovation Network in Nanosystems for Health‐NanoSAÚDE/Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Rio de JaneiroBrazil
| | - Ana Claudia Torrecilhas
- Departamento de Ciências FarmacêuticasDiadema Campus, Instituto de Ciências Ambientais, Químicas e FarmacêuticasUniversidade Federal de São Paulo (UNIFESP)DiademaSão PauloBrazil
| | - Bruno Solano de Freitas Souza
- Center for Biotechnology and Cell TherapySão Rafael HospitalSalvadorBrazil
- D'Or Institute for Research and Education (IDOR)SalvadorBrazil
| | - Fernanda Ferreira Cruz
- Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Rio de Janeiro Innovation Network in Nanosystems for Health‐NanoSAÚDE/Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Rio de JaneiroBrazil
| | - Herbert Leonel de Matos Guedes
- Instituto de Microbiologia Paulo de Goés (IMPG)Universidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Fundação Oswaldo Cruz (FIOCRUZ)Instituto Oswaldo Cruz (IOC)Rio de JaneiroBrazil
| | - Tadeu Diniz Ramos
- Instituto de Microbiologia Paulo de Goés (IMPG)Universidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Fundação Oswaldo Cruz (FIOCRUZ)Instituto Oswaldo Cruz (IOC)Rio de JaneiroBrazil
| | - Miqueias Lopes‐Pacheco
- Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Deparment of PediatricsCenter for Cystic Fibrosis and Airway Disease ResearchEmory University School of MedicineAtlantaGeorgiaUSA
| | - Celso Caruso‐Neves
- Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Rio de Janeiro Innovation Network in Nanosystems for Health‐NanoSAÚDE/Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Rio de JaneiroBrazil
- National Institute of Science and Technology for Regenerative MedicineINCT‐REGENERARio de JaneiroBrazil
| | - Patricia R. M. Rocco
- Instituto de Biofísica Carlos Chagas FilhoUniversidade Federal do Rio de Janeiro (UFRJ)Rio de JaneiroBrazil
- Rio de Janeiro Innovation Network in Nanosystems for Health‐NanoSAÚDE/Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Rio de JaneiroBrazil
- National Institute of Science and Technology for Regenerative MedicineINCT‐REGENERARio de JaneiroBrazil
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Wang X, Giri BR, Cui Z, Munkhjargal T, Wang C, Fontanilla IKC, Cheng G. Development of a Gaussia luciferase immunoprecipitation assay for detecting Schistosoma japonicum infection. Exp Parasitol 2024; 262:108776. [PMID: 38750807 DOI: 10.1016/j.exppara.2024.108776] [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: 02/04/2024] [Revised: 04/30/2024] [Accepted: 05/10/2024] [Indexed: 05/23/2024]
Abstract
Timely and accurate diagnosis of Schistosoma infection is important to adopt effective strategies for schistosomiasis control. Previously, we demonstrated that Schistosoma japonicum can secret extracellular vesicles and their cargos may serve as a novel type of biomarkers for diagnosing schistosomiasis. Here, we developed a Gaussia luciferase immunoprecipitation assay combined with S. japonicum extracellular vesicle (SjEV) protein to evaluate its potential for diagnosing schistosomiasis. A saposin-like protein (SjSLP) identified from SjEVs was fused to the Gaussia luciferase as the diagnostic antigen. The developed method showed good capability for detecting S. japonicum infection in mice and human patients. We also observed that the method could detect Schistosoma infection in mice as early as 7 days of post-infection, which showed better sensitivity than that of indirect ELISA method. Overall, the developed method showed a good potential for detecting Schistosoma infection particularly for early stage, which may provide an alternative strategy for identify Schistosoma infection for disease control.
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Affiliation(s)
- Xiaoxu Wang
- Shanghai Tenth People's Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, 200331, China; School of Biotechnology Jiangsu University of Science and Technology, Zhen Jiang, 212100, China
| | - Bikash R Giri
- Department of Zoology, Utkal University, Bhubaneswar, Odisha, 751004, India
| | - Zhoukai Cui
- Pingquan Hospital, Hebei Province, Chengde, 067500, China
| | - Tserendorj Munkhjargal
- Institute of Veterinary Medicine, Mongolian University of Life Science, Zaisan, 17029, Ulaanbaatar, Mongolia
| | - Chunren Wang
- Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Heilongjiang Province, Daqing, 163316, China
| | - Ian Kendrich C Fontanilla
- DNA Barcoding Laboratory, Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
| | - Guofeng Cheng
- Shanghai Tenth People's Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, 200331, China.
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Wu H, Giri BR, Li H, Zheng Y, Yan X, Cheng G. Schistosoma japonicum extracellular vesicle proteins serve as effective biomarkers for diagnosing parasite infection. Front Cell Infect Microbiol 2024; 14:1391168. [PMID: 38817446 PMCID: PMC11137203 DOI: 10.3389/fcimb.2024.1391168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024] Open
Abstract
Schistosoma species are the causative agent of schistosomiasis and shows worldwide distribution. There is a great need to develop a sensitive diagnostic approach for controlling the disease. Previously, we identified large numbers of Extracellular Vesicle (EV) proteins from Schistosoma japonicum (S. japonicum), but rarely these proteins have been evaluated for their diagnostic potential. In the present study, we performed bioinformatic analyses of S. japonicum identified EV-associated proteins from the previous study and then identified Schistosoma-specific proteins with potentially secreted capability. Among them, we selected SJCHGC02838 protein, SJCHGC05593 protein, SJCHGC05668 protein and a hypothetical protein (SJHYP) to evaluate their diagnostic potential for detecting S. japonicum infection. First, we determined the expression of these four proteins at the transcript levels using qRT-PCR and revealed that all these genes showed higher expression in adult stage. Then, we cloned the full-length cDNA for each protein into a prokaryotic expression vector and successfully generated the recombinant proteins. Upon the purification of recombinant proteins, we developed an indirect ELISA method to evaluate the diagnostic potential of these purified recombinant proteins. The results showed high sensitivity for detecting Schistosoma infection. Additionally, these proteins also displayed a good potential for detecting Schistosoma infection, especially SJCHGC05668 protein at an early stage. The diagnostic potentials of these recombinant proteins were further evaluated by Western blot and comparatively analyzed by our previously developed cfDNA methods.
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Affiliation(s)
- Huixin Wu
- Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Bikash R. Giri
- Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Zoology, Kuntala Kumari Sabat (KKS) Women’s College, Balasore, Odisha, India
| | - Huimin Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai, China
| | - Yameng Zheng
- Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoli Yan
- Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Guofeng Cheng
- Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
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Riera-Ferrer E, Mazanec H, Mladineo I, Konik P, Piazzon MC, Kuchta R, Palenzuela O, Estensoro I, Sotillo J, Sitjà-Bobadilla A. An inside out journey: biogenesis, ultrastructure and proteomic characterisation of the ectoparasitic flatworm Sparicotyle chrysophrii extracellular vesicles. Parasit Vectors 2024; 17:175. [PMID: 38570784 PMCID: PMC10993521 DOI: 10.1186/s13071-024-06257-x] [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: 12/22/2023] [Accepted: 03/21/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Helminth extracellular vesicles (EVs) are known to have a three-way communication function among parasitic helminths, their host and the host-associated microbiota. They are considered biological containers that may carry virulence factors, being therefore appealing as therapeutic and prophylactic target candidates. This study aims to describe and characterise EVs secreted by Sparicotyle chrysophrii (Polyopisthocotyla: Microcotylidae), a blood-feeding gill parasite of gilthead seabream (Sparus aurata), causing significant economic losses in Mediterranean aquaculture. METHODS To identify proteins involved in extracellular vesicle biogenesis, genomic datasets from S. chrysophrii were mined in silico using known protein sequences from Clonorchis spp., Echinococcus spp., Fasciola spp., Fasciolopsis spp., Opisthorchis spp., Paragonimus spp. and Schistosoma spp. The location and ultrastructure of EVs were visualised by transmission electron microscopy after fixing adult S. chrysophrii specimens by high-pressure freezing and freeze substitution. EVs were isolated and purified from adult S. chrysophrii (n = 200) using a newly developed ultracentrifugation-size-exclusion chromatography protocol for Polyopisthocotyla, and EVs were characterised via nanoparticle tracking analysis and tandem mass spectrometry. RESULTS Fifty-nine proteins involved in EV biogenesis were identified in S. chrysophrii, and EVs compatible with ectosomes were observed in the syncytial layer of the haptoral region lining the clamps. The isolated and purified nanoparticles had a mean size of 251.8 nm and yielded 1.71 × 108 particles · mL-1. The protein composition analysis identified proteins related to peptide hydrolases, GTPases, EF-hand domain proteins, aerobic energy metabolism, anticoagulant/lipid-binding, haem detoxification, iron transport, EV biogenesis-related, vesicle-trafficking and other cytoskeletal-related proteins. Several identified proteins, such as leucyl and alanyl aminopeptidases, calpain, ferritin, dynein light chain, 14-3-3, heat shock protein 70, annexin, tubulin, glutathione S-transferase, superoxide dismutase, enolase and fructose-bisphosphate aldolase, have already been proposed as target candidates for therapeutic or prophylactic purposes. CONCLUSIONS We have unambiguously demonstrated for the first time to our knowledge the secretion of EVs by an ectoparasitic flatworm, inferring their biogenesis machinery at a genomic and transcriptomic level, and by identifying their location and protein composition. The identification of multiple therapeutic targets among EVs' protein repertoire provides opportunities for target-based drug discovery and vaccine development for the first time in Polyopisthocotyla (sensu Monogenea), and in a fish-ectoparasite model.
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Affiliation(s)
- Enrique Riera-Ferrer
- Fish Pathology Group, Institute of Aquaculture Torre de La Sal, Consejo Superior de Investigaciones Científicas (IATS, CSIC), Ribera de Cabanes, 12595, Castellón, Spain
| | - Hynek Mazanec
- Laboratory of Helminthology, Institute of Parasitology, Biology Centre, Czech Academy of Sciences, (BC CAS), České Budějovice, Czech Republic
| | - Ivona Mladineo
- Laboratory of Functional Helminthology, Institute of Parasitology, Biology Centre Czech Academy of Sciences (BC CAS), České Budějovice, Czech Republic
| | - Peter Konik
- Faculty of Science, University of South Bohemia, Branišovská 1160/31, 370 05, České Budějovice, Czech Republic
| | - M Carla Piazzon
- Fish Pathology Group, Institute of Aquaculture Torre de La Sal, Consejo Superior de Investigaciones Científicas (IATS, CSIC), Ribera de Cabanes, 12595, Castellón, Spain
| | - Roman Kuchta
- Laboratory of Helminthology, Institute of Parasitology, Biology Centre, Czech Academy of Sciences, (BC CAS), České Budějovice, Czech Republic
| | - Oswaldo Palenzuela
- Fish Pathology Group, Institute of Aquaculture Torre de La Sal, Consejo Superior de Investigaciones Científicas (IATS, CSIC), Ribera de Cabanes, 12595, Castellón, Spain
| | - Itziar Estensoro
- Fish Pathology Group, Institute of Aquaculture Torre de La Sal, Consejo Superior de Investigaciones Científicas (IATS, CSIC), Ribera de Cabanes, 12595, Castellón, Spain.
| | - Javier Sotillo
- Parasitology Reference and Research Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Ariadna Sitjà-Bobadilla
- Fish Pathology Group, Institute of Aquaculture Torre de La Sal, Consejo Superior de Investigaciones Científicas (IATS, CSIC), Ribera de Cabanes, 12595, Castellón, Spain
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Xiong Y, Lou P, Xu C, Han B, Liu J, Gao J. Emerging role of extracellular vesicles in veterinary practice: novel opportunities and potential challenges. Front Vet Sci 2024; 11:1335107. [PMID: 38332755 PMCID: PMC10850357 DOI: 10.3389/fvets.2024.1335107] [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: 11/08/2023] [Accepted: 01/12/2024] [Indexed: 02/10/2024] Open
Abstract
Extracellular vesicles are nanoscale vesicles that transport signals between cells, mediating both physiological and pathological processes. EVs facilitate conserved intercellular communication. By transferring bioactive molecules between cells, EVs coordinate systemic responses, regulating homeostasis, immunity, and disease progression. Given their biological importance and involvement in pathogenesis, EVs show promise as biomarkers for veterinary diagnosis, and candidates for vaccine production, and treatment agents. Additionally, different treatment or engineering methods could be used to boost the capability of extracellular vesicles. Despite the emerging veterinary interest, EV research has been predominantly human-based. Critical knowledge gaps remain regarding isolation protocols, cargo loading mechanisms, in vivo biodistribution, and species-specific functions. Standardized methods for veterinary EV characterization and validation are lacking. Regulatory uncertainties impede veterinary clinical translation. Advances in fundamental EV biology and technology are needed to propel the veterinary field forward. This review introduces EVs from a veterinary perspective by introducing the latest studies, highlighting their potential while analyzing challenges to motivate expanded veterinary investigation and translation.
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Affiliation(s)
- Yindi Xiong
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Peng Lou
- NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Chuang Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Bo Han
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jingping Liu
- NHC Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Jian Gao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
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Wu F, Chen X, Du Z, Chen Y, Tong D, Zhang J, Yang Y, Ma G, Du A. Proteomic differences between extracellular vesicles and extracellular vesicle-depleted excretory/secretory products of barber's pole worm. Parasit Vectors 2024; 17:17. [PMID: 38217036 PMCID: PMC10785392 DOI: 10.1186/s13071-023-06092-6] [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: 11/20/2023] [Accepted: 12/11/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND Components of excretory/secretory products (ESPs) of helminths have been proposed as vaccine targets and shown to play a role in modulating host immune responses for decades. Such research interest is further increased by the discovery of extracellular vesicles (EVs) in the ESPs of parasitic worms. Although efforts have been made to reveal the cargos of EVs, little is known about the proteomic differences between EVs and canonical ESPs released by parasitic worms from animals. METHODS The total ESPs of Haemonchus contortus (barber's pole worm) were obtained by short-term in vitro culturing of young adult worms, and small EVs were isolated from ESPs using an ultracentrifugation method. Data-dependent acquisition (DDA) label-free Nano-LC-MS/MS was used to quantify the proteomic difference between small EVs and EV-depleted ESPs of H. contortus. Functional annotation and enrichment of the differential proteins were performed regarding cellular components, molecular functions, pathways, and/or biological processes. RESULTS A total of 1697 proteins were identified in small EVs and EV-depleted ESPs of H. contortus adult worms, with 706 unique proteins detected in the former and 597 unique proteins in the latter. It was revealed that proteins in small EVs are dominantly cytoplasmic, whereas proteins in EV-depleted ESPs are mainly extracellular; canonical ESPs such as proteases and small GTPases were abundantly detected in small EVs, and SCP/TAP-, DUF-, and GLOBIN domain-containing proteins were mainly found in EV-depleted ESPs. Compared with well-characterised proteins in small EVs, about 50% of the proteins detected in EV-depleted ESPs were poorly characterised. CONCLUSIONS There are remarkable differences between small EVs and EV-depleted ESPs of H. contortus in terms of protein composition. Immune modulatory effects caused by nematode ESPs are possibly contributed mainly by the proteins in small EVs.
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Affiliation(s)
- Fei Wu
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Xueqiu Chen
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Zhendong Du
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yanqiong Chen
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Danni Tong
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Jingju Zhang
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yi Yang
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Guangxu Ma
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China.
| | - Aifang Du
- College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Institute of Preventive Veterinary Medicine, Zhejiang University, Hangzhou, 310058, China.
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Maharjan S, Kirk RS, Lawton SP, Walker AJ. Human growth factor-mediated signalling through lipid rafts regulates stem cell proliferation, development and survival of Schistosoma mansoni. Open Biol 2024; 14:230262. [PMID: 38195062 PMCID: PMC10776228 DOI: 10.1098/rsob.230262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/16/2023] [Indexed: 01/11/2024] Open
Abstract
Although the mechanisms by which schistosomes grow and develop in humans are poorly defined, their unique outer tegument layer, which interfaces with host blood, is considered vital to homeostasis of the parasite. Here, we investigated the importance of tegument lipid rafts to the biology of Schistosoma mansoni in the context of host-parasite interactions. We demonstrate the temporal clustering of lipid rafts in response to human epidermal growth factor (EGF) during early somule development, concomitant with the localization of anteriorly orientated EGF receptors (EGFRs) and insulin receptors, mapped using fluorescent EGF/insulin ligand. Methyl-β-cyclodextrin (MβCD)-mediated depletion of cholesterol from lipid rafts abrogated the EGFR/IR binding at the parasite surface and led to modulation of protein kinase C, extracellular signal-regulated kinase, p38 mitogen-activated protein kinase and Akt signalling pathways within the parasite. Furthermore, MβCD-mediated lipid raft disruption, and blockade of EGFRs using canertinib, profoundly reduced somule motility and survival, and attenuated stem cell proliferation and somule growth and development particularly to the fast-growing liver stage. These findings provide a novel paradigm for schistosome development and vitality in the host, driven through host-parasite interactions at the tegument, that might be exploitable for developing innovative therapeutic approaches to combat human schistosomiasis.
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Affiliation(s)
- Shradha Maharjan
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames KT1 2EE, UK
| | - Ruth S. Kirk
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames KT1 2EE, UK
| | - Scott P. Lawton
- Centre for Epidemiology and Planetary Health, SRUC School of Veterinary Medicine, Scotland's Rural College, West Mains Road, Edinburgh EH9 3JG, UK
| | - Anthony J. Walker
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames KT1 2EE, UK
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10
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Ancarola ME, Maldonado LL, García LCA, Franchini GR, Mourglia-Ettlin G, Kamenetzky L, Cucher MA. A Comparative Analysis of the Protein Cargo of Extracellular Vesicles from Helminth Parasites. Life (Basel) 2023; 13:2286. [PMID: 38137887 PMCID: PMC10744797 DOI: 10.3390/life13122286] [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: 10/11/2023] [Revised: 11/15/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Helminth parasites cause debilitating-sometimes fatal-diseases in humans and animals. Despite their impact on global health, mechanisms underlying host-parasite interactions are still poorly understood. One such mechanism involves the exchange of extracellular vesicles (EVs), which are membrane-enclosed subcellular nanoparticles. To date, EV secretion has been studied in helminth parasites, including EV protein content. However, information is highly heterogeneous, since it was generated in multiple species, using varied protocols for EV isolation and data analysis. Here, we compared the protein cargo of helminth EVs to identify common markers for each taxon. For this, we integrated published proteomic data and performed a comparative analysis through an orthology approach. Overall, only three proteins were common in the EVs of the seven analyzed species. Additionally, varied repertoires of proteins with moonlighting activity, vaccine antigens, canonical and non-canonical proteins related to EV biogenesis, taxon-specific proteins of unknown function and RNA-binding proteins were observed in platyhelminth and nematode EVs. Despite the lack of consensus on EV isolation protocols and protein annotation, several proteins were shown to be consistently detected in EV preparations from organisms at different taxa levels, providing a starting point for a selective biochemical characterization.
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Affiliation(s)
- María Eugenia Ancarola
- Department of Microbiology, School of Medicine, University of Buenos Aires, Buenos Aires C1121, Argentina; (M.E.A.); (L.L.M.)
- Institute of Research on Microbiology and Medical Parasitology (IMPaM, UBA-CONICET), University of Buenos Aires, Buenos Aires C1121, Argentina
| | - Lucas L. Maldonado
- Department of Microbiology, School of Medicine, University of Buenos Aires, Buenos Aires C1121, Argentina; (M.E.A.); (L.L.M.)
- Institute of Research on Microbiology and Medical Parasitology (IMPaM, UBA-CONICET), University of Buenos Aires, Buenos Aires C1121, Argentina
- Instituto de Tecnología (INTEC), Universidad Argentina de la Empresa (UADE), Buenos Aires C1073, Argentina
| | - Lucía C. A. García
- Department of Microbiology, School of Medicine, University of Buenos Aires, Buenos Aires C1121, Argentina; (M.E.A.); (L.L.M.)
- Institute of Research on Microbiology and Medical Parasitology (IMPaM, UBA-CONICET), University of Buenos Aires, Buenos Aires C1121, Argentina
| | - Gisela R. Franchini
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Facultad de Ciencias Médicas, Universidad Nacional de La Plata (UNLP)-Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), La Plata B1900, Argentina;
- Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), La Plata B1900, Argentina
| | - Gustavo Mourglia-Ettlin
- Área Inmunología, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay;
| | - Laura Kamenetzky
- Instituto de Biociencias, Biotecnología y Biología Traslacional, Departamento de Fisiología y Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428, Argentina;
| | - Marcela A. Cucher
- Department of Microbiology, School of Medicine, University of Buenos Aires, Buenos Aires C1121, Argentina; (M.E.A.); (L.L.M.)
- Institute of Research on Microbiology and Medical Parasitology (IMPaM, UBA-CONICET), University of Buenos Aires, Buenos Aires C1121, Argentina
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11
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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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12
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Di Maggio LS, Fischer K, Yates D, Curtis KC, Rosa BA, Martin J, Erdmann-Gilmore P, Sprung RSW, Mitreva M, Townsend RR, Weil GJ, Fischer PU. The proteome of extracellular vesicles of the lung fluke Paragonimus kellicotti produced in vitro and in the lung cyst. Sci Rep 2023; 13:13726. [PMID: 37608002 PMCID: PMC10444896 DOI: 10.1038/s41598-023-39966-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/02/2023] [Indexed: 08/24/2023] Open
Abstract
Paragonimiasis is a zoonotic, food-borne trematode infection that affects 21 million people globally. Trematodes interact with their hosts via extracellular vesicles (EV) that carry protein and RNA cargo. We analyzed EV in excretory-secretory products (ESP) released by Paragonimus kellicotti adult worms cultured in vitro (EV ESP) and EV isolated from lung cyst fluid (EV CFP) recovered from infected gerbils. The majority of EV were approximately 30-50 nm in diameter. We identified 548 P. kellicotti-derived proteins in EV ESP by mass spectrometry and 8 proteins in EV CFP of which 7 were also present in EV ESP. No parasite-derived proteins were reliably detected in EV isolated from plasma samples. A cysteine protease (MK050848, CP-6) was the most abundant protein found in EV CFP in all technical and biological replicates. Immunolocalization of CP-6 showed strong labeling in the tegument of P. kellicotti and in the adjacent cyst and lung tissue that contained worm eggs. It is likely that CP-6 present in EV is involved in parasite-host interactions. These results provide new insights into interactions between Paragonimus and their mammalian hosts, and they provide potential clues for development of novel diagnostic tools and treatments.
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Affiliation(s)
- Lucia S Di Maggio
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA.
| | - Kerstin Fischer
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Devyn Yates
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kurt C Curtis
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Bruce A Rosa
- Department of Internal Medicine, Washington University of St. Louis School of Medicine, St. Louis, MO, USA
| | - John Martin
- Department of Internal Medicine, Washington University of St. Louis School of Medicine, St. Louis, MO, USA
| | - Petra Erdmann-Gilmore
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Robert S W Sprung
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Makedonka Mitreva
- Department of Internal Medicine, Washington University of St. Louis School of Medicine, St. Louis, MO, USA
| | - R Reid Townsend
- Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Gary J Weil
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Peter U Fischer
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
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13
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Doolan R, Putananickal N, Tritten L, Bouchery T. How to train your myeloid cells: a way forward for helminth vaccines? Front Immunol 2023; 14:1163364. [PMID: 37325618 PMCID: PMC10266106 DOI: 10.3389/fimmu.2023.1163364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/25/2023] [Indexed: 06/17/2023] Open
Abstract
Soil-transmitted helminths affect approximately 1.5 billion people worldwide. However, as no vaccine is currently available for humans, the current strategy for elimination as a public health problem relies on preventive chemotherapy. Despite more than 20 years of intense research effort, the development of human helminth vaccines (HHVs) has not yet come to fruition. Current vaccine development focuses on peptide antigens that trigger strong humoral immunity, with the goal of generating neutralizing antibodies against key parasite molecules. Notably, this approach aims to reduce the pathology of infection, not worm burden, with only partial protection observed in laboratory models. In addition to the typical translational hurdles that vaccines struggle to overcome, HHVs face several challenges (1): helminth infections have been associated with poor vaccine responses in endemic countries, probably due to the strong immunomodulation caused by these parasites, and (2) the target population displays pre-existing type 2 immune responses to helminth products, increasing the likelihood of adverse events such as allergy or anaphylaxis. We argue that such traditional vaccines are unlikely to be successful on their own and that, based on laboratory models, mucosal and cellular-based vaccines could be a way to move forward in the fight against helminth infection. Here, we review the evidence for the role of innate immune cells, specifically the myeloid compartment, in controlling helminth infections. We explore how the parasite may reprogram myeloid cells to avoid killing, notably using excretory/secretory (ES) proteins and extracellular vesicles (EVs). Finally, learning from the field of tuberculosis, we will discuss how anti-helminth innate memory could be harnessed in a mucosal-trained immunity-based vaccine.
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Affiliation(s)
- Rory Doolan
- Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Namitha Putananickal
- Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Lucienne Tritten
- Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
- Institute of Parasitology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Tiffany Bouchery
- Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
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14
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Pakharukova MY, Savina E, Ponomarev DV, Gubanova NV, Zaparina O, Zakirova EG, Cheng G, Tikhonova OV, Mordvinov VA. Proteomic characterization of Opisthorchis felineus exosome-like vesicles and their uptake by human cholangiocytes. J Proteomics 2023; 283-284:104927. [PMID: 37225040 DOI: 10.1016/j.jprot.2023.104927] [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: 01/24/2023] [Revised: 03/18/2023] [Accepted: 05/03/2023] [Indexed: 05/26/2023]
Abstract
The epidemiologically important food-borne trematode Opisthorchis felineus infests the liver biliary tract of fish-eating mammals and causes disorders, including bile duct neoplasia. Many parasitic species release extracellular vesicles (EVs) that mediate host-parasite interaction. Currently, there is no information on O. felineus EVs. Using gel electrophoresis followed by liquid chromatography coupled with tandem mass spectrometry, we aimed to characterize the proteome of EVs released by the adult O. felineus liver fluke. Differential abundance of proteins between whole adult worms and EVs was assessed by semiquantitative iBAQ (intensity-based absolute quantification). Imaging, flow cytometry, inhibitor assays, and colocalization assays were performed to monitor the uptake of the EVs by H69 human cholangiocytes. The proteomic analysis reliably identified 168 proteins (at least two peptides matched a protein). Among major proteins of EVs were ferritin, tetraspanin CD63, helminth defense molecule 1, globin 3, saposin B type domain-containing protein, 60S ribosomal protein, glutathione S-transferase GST28, tubulin, and thioredoxin peroxidase. Moreover, as compared to the whole adult worm, EVs proved to be enriched with tetraspanin CD63, saposin B, helminth defense molecule 1, and Golgi-associated plant pathogenesis-related protein 1 (GAPR1). We showed that EVs are internalized by human H69 cholangiocytes via clathrin-dependent endocytosis, whereas phagocytosis and caveolin-dependent endocytosis do not play a substantial role in this process. Our study describes for the first time proteomes and differential abundance of proteins in whole adult O. felineus worms and EVs released by this food-borne trematode. Studies elucidating the regulatory role of individual components of EVs of liver flukes should be continued to determine which components of EV cargo play the most important part in the pathogenesis of fluke infection and in a closely linked pathology: bile duct neoplasia. SIGNIFICANCE: The food-borne trematode Opisthorchis felineus is a pathogen that causes hepatobiliary disorders in humans and animals. Our study describes for the first time the release of EVs by the liver fluke O. felineus, their microscopic and proteomic characterization, and internalization pathways by human cholangiocytes. Differential abundance of proteins between whole adult worms and EVs was assessed. EVs are enriched with canonical EV markers as well as parasite specific proteins, i.e. tetraspanin CD63, saposin B, helminth defense molecule 1, and others. Our findings will form the basis of the search for potential immunomodulatory candidates with therapeutic potential in the context of inflammatory diseases, as well as novel vaccine candidates.
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Affiliation(s)
- Maria Y Pakharukova
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia; Department of Natural Sciences, Novosibirsk State University, 2 Pirogova Str., Novosibirsk 630090, Russia.
| | - Ekaterina Savina
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Dmitry V Ponomarev
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Natalya V Gubanova
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Oxana Zaparina
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Elvira G Zakirova
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia; Department of Genetic Technologies, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Guofeng Cheng
- Shanghai Tenth People's Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, 301 Middle Yanchang Road, Shanghai 200072, China
| | - Olga V Tikhonova
- Institute of Biomedical Chemistry, 10 Pogodinskaya Str., 119121 Moscow, Russia
| | - Viatcheslav A Mordvinov
- Institute of Cytology and Genetics (ICG), Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentiev Ave., Novosibirsk 630090, Russia
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15
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Chaiyadet S, Sotillo J, Smout M, Cooper M, Doolan DL, Waardenberg A, Eichenberger RM, Field M, Brindley PJ, Laha T, Loukas A. Small extracellular vesicles but not microvesicles from Opisthorchis viverrini promote cell proliferation in human cholangiocytes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.22.540805. [PMID: 37292777 PMCID: PMC10245807 DOI: 10.1101/2023.05.22.540805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chronic infection with O. viverrini has been linked to the development of cholangiocarcinoma (CCA), which is a major public health burden in the Lower Mekong River Basin countries, including Thailand, Lao PDR, Vietnam and Cambodia. Despite its importance, the exact mechanisms by which O. viverrini promotes CCA are largely unknown. In this study, we characterized different extracellular vesicle populations released by O. viverrini (OvEVs) using proteomic and transcriptomic analyses and investigated their potential role in host-parasite interactions. While 120k OvEVs promoted cell proliferation in H69 cells at different concentrations, 15k OvEVs did not produce any effect compared to controls. The proteomic analysis of both populations showed differences in their composition that could contribute to this differential effect. Furthermore, the miRNAs present in 120k EVs were analysed and their potential interactions with human host genes was explored by computational target prediction. Different pathways involved in inflammation, immune response and apoptosis were identified as potentially targeted by the miRNAs present in this population of EVs. This is the first study showing specific roles for different EV populations in the pathogenesis of a parasitic helminth, and more importantly, an important advance towards deciphering the mechanisms used in establishment of opisthorchiasis and liver fluke infection-associated malignancy.
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Affiliation(s)
- Sujittra Chaiyadet
- Department of Tropical Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Javier Sotillo
- Parasitology Reference and Research Laboratory, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Michael Smout
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Martha Cooper
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Denise L. Doolan
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Ashley Waardenberg
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
- Current affiliation: i-Synapse, Cairns, QLD, Australia
| | - Ramon M. Eichenberger
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Matt Field
- Centre for Tropical Bioinformatics and Molecular Biology, College of Public Health, Medical and Veterinary Science, James Cook University, Cairns, Australia
- Immunogenomics Lab, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Paul J. Brindley
- Department of Microbiology, Immunology and Tropical Medicine, School of Medicine & Health Sciences, George Washington University, Washington, DC, USA
| | - Thewarach Laha
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Thailand
| | - Alex Loukas
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
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16
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Licá ICL, Frazão GCCG, Nogueira RA, Lira MGS, dos Santos VAF, Rodrigues JGM, Miranda GS, Carvalho RC, Silva LA, Guerra RNM, Nascimento FRF. Immunological mechanisms involved in macrophage activation and polarization in schistosomiasis. Parasitology 2023; 150:401-415. [PMID: 36601859 PMCID: PMC10089811 DOI: 10.1017/s0031182023000021] [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: 05/18/2022] [Revised: 12/21/2022] [Accepted: 12/24/2022] [Indexed: 01/06/2023]
Abstract
Human schistosomiasis is caused by helminths of the genus Schistosoma. Macrophages play a crucial role in the immune regulation of this disease. These cells acquire different phenotypes depending on the type of stimulus they receive. M1 macrophages can be ‘classically activated’ and can display a proinflammatory phenotype. M2 or ‘alternatively activated’ macrophages are considered anti-inflammatory cells. Despite the relevance of macrophages in controlling infections, the role of the functional types of these cells in schistosomiasis is unclear. This review highlights different molecules and/or macrophage activation and polarization pathways during Schistosoma mansoni and Schistosoma japonicum infection. This review is based on original and review articles obtained through searches in major databases, including Scopus, Google Scholar, ACS, PubMed, Wiley, Scielo, Web of Science, LILACS and ScienceDirect. Our findings emphasize the importance of S. mansoni and S. japonicum antigens in macrophage polarization, as they exert immunomodulatory effects in different stages of the disease and are therefore important as therapeutic targets for schistosomiasis and in vaccine development. A combination of different antigens can provide greater protection, as it possibly stimulates an adequate immune response for an M1 or M2 profile and leads to host resistance; however, this warrants in vitro and in vivo studies.
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Affiliation(s)
- Irlla Correia Lima Licá
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Gleycka Cristine Carvalho Gomes Frazão
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Ranielly Araujo Nogueira
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Maria Gabriela Sampaio Lira
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Vitor Augusto Ferreira dos Santos
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - João Gustavo Mendes Rodrigues
- Department of Parasitology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Guilherme Silva Miranda
- Department of Biology, Federal Institute of Education, Science and Technology of Maranhão, São Raimundo das Mangabeiras, Brazil
| | - Rafael Cardoso Carvalho
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Lucilene Amorim Silva
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Department of Pathology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Rosane Nassar Meireles Guerra
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Department of Pathology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
| | - Flávia Raquel Fernandes Nascimento
- Graduate Program in Health Sciences, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Laboratory of Immunophysiology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
- Department of Pathology, Center for Biological and Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil
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Kuipers ME, Nguyen DL, van Diepen A, Mes L, Bos E, Koning RI, Nolte-’t Hoen ENM, Smits HH, Hokke CH. Life stage-specific glycosylation of extracellular vesicles from Schistosoma mansoni schistosomula and adult worms drives differential interaction with C-type lectin receptors DC-SIGN and MGL. Front Mol Biosci 2023; 10:1125438. [PMID: 37006612 PMCID: PMC10050886 DOI: 10.3389/fmolb.2023.1125438] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/15/2023] [Indexed: 03/17/2023] Open
Abstract
Schistosomes can survive in mammalian hosts for many years, and this is facilitated by released parasite products that modulate the host’s immune system. Many of these products are glycosylated and interact with host cells via C-type lectin receptors (CLRs). We previously reported on specific fucose-containing glycans present on extracellular vesicles (EVs) released by schistosomula, the early juvenile life stage of the schistosome, and the interaction of these EVs with the C-type lectin receptor Dendritic Cell-Specific Intercellular adhesion molecule-3-Grabbing Non-integrin (DC-SIGN or CD209). EVs are membrane vesicles with a size range between 30–1,000 nm that play a role in intercellular and interspecies communication. Here, we studied the glycosylation of EVs released by the adult schistosome worms. Mass spectrometric analysis showed that GalNAcβ1–4GlcNAc (LacDiNAc or LDN) containing N-glycans were the dominant glycan type present on adult worm EVs. Using glycan-specific antibodies, we confirmed that EVs from adult worms were predominantly associated with LDN, while schistosomula EVs displayed a highly fucosylated glycan profile. In contrast to schistosomula EV that bind to DC-SIGN, adult worm EVs are recognized by macrophage galactose-type lectin (MGL or CD301), and not by DC-SIGN, on CLR expressing cell lines. The different glycosylation profiles of adult worm- and schistosomula-derived EVs match with the characteristic glycan profiles of the corresponding life stages and support their distinct roles in schistosome life-stage specific interactions with the host.
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Affiliation(s)
- Marije E. Kuipers
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - D. Linh Nguyen
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Lynn Mes
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Erik Bos
- Electron Microscopy Facility, Department of Cell and Chemical Biology, Leiden, Netherlands
| | - Roman I. Koning
- Electron Microscopy Facility, Department of Cell and Chemical Biology, Leiden, Netherlands
| | - Esther N. M. Nolte-’t Hoen
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Hermelijn H. Smits
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
| | - Cornelis H. Hokke
- Department of Parasitology, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: Cornelis H. Hokke,
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18
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Sheng ZA, Wu CL, Wang DY, Zhong SH, Yang X, Rao GS, Peng H, Feng SW, Li J, Huang WY, Luo HL. Proteomic analysis of exosome-like vesicles from Fasciola gigantica adult worm provides support for new vaccine targets against fascioliasis. Parasit Vectors 2023; 16:62. [PMID: 36765398 PMCID: PMC9921414 DOI: 10.1186/s13071-023-05659-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/09/2023] [Indexed: 02/12/2023] Open
Abstract
BACKGROUND Extracellular vesicles (EVs) released by helminths play an important role in parasite-host communication. However, little is known about the characteristics and contents of the EVs of Fasciola gigantica, a parasitic flatworm that causes tropical fascioliasis. A better understanding of EVs released by F. gigantica will help elucidate the mechanism of F. gigantica-host interaction and facilitate the search for new vaccine candidates for the control and treatment of fascioliasis. METHODS Two different populations of EVs (15k EVs and 100k EVs) were purified from adult F. gigantica culture media by ultracentrifugation. The morphology and size of the purified EVs were determined by transmission electron microscopy (TEM) and by the Zetasizer Nano ZSP high performance particle characterization system. With the aim of identifying diagnostic markers or potential vaccine candidates, proteins within the isolated 100k EVs were analyzed using mass spectrometry-based proteomics (LC-MS/MS). Mice were then vaccinated with excretory/secretory products (ESPs; depleted of EVs), 15k EVs, 100k EVs and recombinant F. gigantica heat shock protein 70 (rFg-HSP70) combined with alum adjuvant followed by challenge infection with F. gigantica metacercariae. Fluke recovery and antibody levels were used as measures of vaccine protection. RESULTS TEM analysis and nanoparticle tracking analysis indicated the successful isolation of two subpopulations of EVs (15k EVs and 100k EVs) from adult F. gigantica culture supernatants using differential centrifugation. A total of 755 proteins were identified in the 100k EVs. Exosome biogenesis or vesicle trafficking proteins, ESCRT (endosomal sorting complex required for transport) pathway proteins and exosome markers, heat shock proteins and 14-3-3 proteins were identified in the 100k EVs. These results indicate that the isolated 100k EVs were exosome-like vesicles. The functions of the identified proteins may be associated with immune regulation, immune evasion and virulence. Mice immunized with F. gigantica ESPs, 15k EVs, 100k EVs and rFg-HSP70 exhibited a reduction in fluke burden of 67.90%, 60.38%, 37.73% and 56.6%, respectively, compared with the adjuvant control group. The vaccination of mice with F. gigantica 100k EVs, 15k EVs, ESP and rFg-HSP70 induced significant production of specific immunoglobulins in sera, namely IgG, IgG1 and IgG2a. CONCLUSION The results of this study suggest that proteins within the exosome-like vesicles of F. gigantica have immunomodulatory, immune evasion and virulence functions. This knowledge may lead to new strategies for immunotherapy, vaccination and the diagnosis of fascioliasis.
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Affiliation(s)
- Zhao-An Sheng
- grid.256609.e0000 0001 2254 5798Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China ,grid.449428.70000 0004 1797 7280Department of Pathogenic Biology, Jining Medical University, Shandong, People’s Republic of China
| | - Cui-Lan Wu
- grid.418337.aGuangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi People’s Republic of China ,Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Nanning, Guangxi People’s Republic of China
| | - Dong-Ying Wang
- grid.256609.e0000 0001 2254 5798Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China
| | - Shu-Hong Zhong
- grid.418337.aGuangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi People’s Republic of China ,Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Nanning, Guangxi People’s Republic of China
| | - Xi Yang
- grid.256609.e0000 0001 2254 5798Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China ,Yuxi Animal Disease Prevention and Control Center, Yuxi, People’s Republic of China
| | - Guo-Shun Rao
- grid.256609.e0000 0001 2254 5798Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, College of Animal Science and Technology, Guangxi University, Nanning, People’s Republic of China
| | - Hao Peng
- grid.418337.aGuangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi People’s Republic of China ,Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Nanning, Guangxi People’s Republic of China
| | - Shi-Wen Feng
- grid.418337.aGuangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi People’s Republic of China ,Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Nanning, Guangxi People’s Republic of China
| | - Jun Li
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, People's Republic of China. .,Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Nanning, Guangxi, People's Republic of China.
| | - Wei-Yi Huang
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, College of Animal Science and Technology, Guangxi University, Nanning, People's Republic of China.
| | - Hong-Lin Luo
- Institute of Oncology, Guangxi Academy of Medical Sciences, Nanning, Guangxi, People's Republic of China. .,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, College of Animal Science and Technology, Guangxi University, Nanning, People's Republic of China.
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19
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White R, Sotillo J, Ancarola ME, Borup A, Boysen AT, Brindley PJ, Buzás EI, Cavallero S, Chaiyadet S, Chalmers IW, Cucher MA, Dagenais M, Davis CN, Devaney E, Duque‐Correa MA, Eichenberger RM, Fontenla S, Gasan TA, Hokke CH, Kosanovic M, Kuipers ME, Laha T, Loukas A, Maizels RM, Marcilla A, Mazanec H, Morphew RM, Neophytou K, Nguyen LT, Nolte‐‘t Hoen E, Povelones M, Robinson MW, Rojas A, Schabussova I, Smits HH, Sungpradit S, Tritten L, Whitehead B, Zakeri A, Nejsum P, Buck AH, Hoffmann KF. Special considerations for studies of extracellular vesicles from parasitic helminths: A community-led roadmap to increase rigour and reproducibility. J Extracell Vesicles 2023; 12:e12298. [PMID: 36604533 PMCID: PMC9816087 DOI: 10.1002/jev2.12298] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 01/07/2023] Open
Abstract
Over the last decade, research interest in defining how extracellular vesicles (EVs) shape cross-species communication has grown rapidly. Parasitic helminths, worm species found in the phyla Nematoda and Platyhelminthes, are well-recognised manipulators of host immune function and physiology. Emerging evidence supports a role for helminth-derived EVs in these processes and highlights EVs as an important participant in cross-phylum communication. While the mammalian EV field is guided by a community-agreed framework for studying EVs derived from model organisms or cell systems [e.g., Minimal Information for Studies of Extracellular Vesicles (MISEV)], the helminth community requires a supplementary set of principles due to the additional challenges that accompany working with such divergent organisms. These challenges include, but are not limited to, generating sufficient quantities of EVs for descriptive or functional studies, defining pan-helminth EV markers, genetically modifying these organisms, and identifying rigorous methodologies for in vitro and in vivo studies. Here, we outline best practices for those investigating the biology of helminth-derived EVs to complement the MISEV guidelines. We summarise community-agreed standards for studying EVs derived from this broad set of non-model organisms, raise awareness of issues associated with helminth EVs and provide future perspectives for how progress in the field will be achieved.
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20
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Bezbaruah R, Chavda VP, Nongrang L, Alom S, Deka K, Kalita T, Ali F, Bhattacharjee B, Vora L. Nanoparticle-Based Delivery Systems for Vaccines. Vaccines (Basel) 2022; 10:vaccines10111946. [PMID: 36423041 PMCID: PMC9694785 DOI: 10.3390/vaccines10111946] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022] Open
Abstract
Vaccination is still the most cost-effective way to combat infectious illnesses. Conventional vaccinations may have low immunogenicity and, in most situations, only provide partial protection. A new class of nanoparticle-based vaccinations has shown considerable promise in addressing the majority of the shortcomings of traditional and subunit vaccines. This is due to recent breakthroughs in chemical and biological engineering, which allow for the exact regulation of nanoparticle size, shape, functionality, and surface characteristics, resulting in improved antigen presentation and robust immunogenicity. A blend of physicochemical, immunological, and toxicological experiments can be used to accurately characterize nanovaccines. This narrative review will provide an overview of the current scenario of the nanovaccine.
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Affiliation(s)
- Rajashri Bezbaruah
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India
| | - Vivek P. Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L. M. College of Pharmacy, Ahmedabad 380008, Gujarat, India
- Correspondence:
| | - Lawandashisha Nongrang
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India
| | - Shahnaz Alom
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India
- Department of Pharmacology, Girijananda Chowdhury Institute of Pharmaceutical Science-Tezpur, Sonitpur 784501, Assam, India
| | - Kangkan Deka
- Department of Pharmacognosy, NETES Institute of Pharmaceutical Science, Mirza, Guwahati 781125, Assam, India
| | - Tutumoni Kalita
- Department of Pharmaceutical Chemistry, Girijananda Chowdhury Institute of Pharmaceutical Sciences, Azara, Guwahati 781017, Assam, India
| | - Farak Ali
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh 786004, Assam, India
- Department of Pharmaceutical Chemistry, Girijananda Chowdhury Institute of Pharmaceutical Science-Tezpur, Sonitpur 784501, Assam, India
| | - Bedanta Bhattacharjee
- Department of Pharmacology, Girijananda Chowdhury Institute of Pharmaceutical Science-Tezpur, Sonitpur 784501, Assam, India
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Draft genome of the bluefin tuna blood fluke, Cardicola forsteri. PLoS One 2022; 17:e0276287. [PMID: 36240154 PMCID: PMC9565688 DOI: 10.1371/journal.pone.0276287] [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: 07/19/2022] [Accepted: 10/03/2022] [Indexed: 11/12/2022] Open
Abstract
The blood fluke Cardicola forsteri (Trematoda: Aporocotylidae) is a pathogen of ranched bluefin tuna in Japan and Australia. Genomics of Cardicola spp. have thus far been limited to molecular phylogenetics of select gene sequences. In this study, sequencing of the C. forsteri genome was performed using Illumina short-read and Oxford Nanopore long-read technologies. The sequences were assembled de novo using a hybrid of short and long reads, which produced a high-quality contig-level assembly (N50 > 430 kb and L50 = 138). The assembly was also relatively complete and unfragmented, comprising 66% and 7.2% complete and fragmented metazoan Benchmarking Universal Single-Copy Orthologs (BUSCOs), respectively. A large portion (> 55%) of the genome was made up of intergenic repetitive elements, primarily long interspersed nuclear elements (LINEs), while protein-coding regions cover > 6%. Gene prediction identified 8,564 hypothetical polypeptides, > 77% of which are homologous to published sequences of other species. The identification of select putative proteins, including cathepsins, calpains, tetraspanins, and glycosyltransferases is discussed. This is the first genome assembly of any aporocotylid, a major step toward understanding of the biology of this family of fish blood flukes and their interactions within hosts.
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22
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Aguoru NA, Kirk RS, Walker AJ. Molecular insights into the heat shock proteins of the human parasitic blood fluke Schistosoma mansoni. Parasit Vectors 2022; 15:365. [PMID: 36229862 PMCID: PMC9559072 DOI: 10.1186/s13071-022-05500-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/16/2022] [Indexed: 11/22/2022] Open
Abstract
Background Heat shock proteins (HSPs) are evolutionarily conserved proteins, produced by cells in response to hostile environmental conditions, that are vital to organism homeostasis. Here, we undertook the first detailed molecular bioinformatic analysis of these important proteins and mapped their tissue expression in the human parasitic blood fluke, Schistosoma mansoni, one of the causative agents of the neglected tropical disease human schistosomiasis. Methods Using bioinformatic tools we classified and phylogenetically analysed HSP family members in schistosomes, and performed transcriptomic, phosphoproteomic, and interactomic analysis of the S. mansoni HSPs. In addition, S. mansoni HSP protein expression was mapped in intact parasites using immunofluorescence. Results Fifty-five HSPs were identified in S. mansoni across five HSP families; high conservation of HSP sequences were apparent across S. mansoni, Schistosoma haematobium and Schistosoma japonicum, with S. haematobium HSPs showing greater similarity to S. mansoni than those of S. japonicum. For S. mansoni, differential HSP gene expression was evident across the various parasite life stages, supporting varying roles for the HSPs in the different stages, and suggesting that they might confer some degree of protection during life stage transitions. Protein expression patterns of HSPs were visualised in intact S. mansoni cercariae, 3 h and 24 h somules, and adult male and female worms, revealing HSPs in the tegument, cephalic ganglia, tubercles, testes, ovaries as well as other important organs. Analysis of putative HSP protein-protein associations highlighted proteins that are involved in transcription, modification, stability, and ubiquitination; functional enrichment analysis revealed functions for HSP networks in S. mansoni including protein export for HSP 40/70, and FOXO/mTOR signalling for HSP90 networks. Finally, a total of 76 phosphorylation sites were discovered within 17 of the 55 HSPs, with 30 phosphorylation sites being conserved with those of human HSPs, highlighting their likely core functional significance. Conclusions This analysis highlights the fascinating biology of S. mansoni HSPs and their likely importance to schistosome function, offering a valuable and novel framework for future physiological investigations into the roles of HSPs in schistosomes, particularly in the context of survival in the host and with the aim of developing novel anti-schistosome therapeutics. Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05500-7.
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Affiliation(s)
- Nancy A Aguoru
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, Surrey, UK
| | - Ruth S Kirk
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, Surrey, UK
| | - Anthony J Walker
- Molecular Parasitology Laboratory, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, Surrey, UK.
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23
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Skelly PJ, Da'dara AA. Schistosome secretomes. Acta Trop 2022; 236:106676. [PMID: 36113567 DOI: 10.1016/j.actatropica.2022.106676] [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: 05/26/2022] [Revised: 08/08/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022]
Abstract
Schistosomes are intravascular parasitic platyhelminths (blood flukes) that infect over 200 million people globally. Biomolecules secreted by the worms likely contribute to their ability to survive in the bloodstreams of immunocompetent hosts for many years. Here we review what is known about the protein composition of material released by the worms. Prominent among cercarial excretions/secretions (ES) is a ∼ 30 kDa serine protease called cercarial elastase (SmCE in Schistosoma mansoni), likely important in host invasion. Also prominent is a 117 amino acid non-glycosylated polypeptide (Sm16) that can impact several host cell-types to impinge on immunological outcomes. Similarly, components of the egg secretome (notably the 134 amino acid homodimeric glycoprotein "IL-4 inducing principle of schistosome eggs", IPSE, and the 225-amino acid monomeric T2 ribonuclease - omega-1) are capable of driving Th2-biased immune responses. A ∼36kDa chemokine binding glycoprotein SmCKBP, secreted by eggs, can negate the impact of several cytokines and can impede neutrophil migration. Of special interest is a disparate collection of classically cytosolic proteins that are surprisingly often identified in schistosome ES across life stages. These proteins, perhaps released as components of extracellular vesicles (EVs), include glycolytic enzymes, redox proteins, proteases and protease inhibitors, heat shock proteins, proteins involved in translation/turnover, histones, and others. Some such proteins may display "moonlighting" functions and, for example, impede blood clot formation around the worms. More prosaically, since several are particularly abundant soluble proteins, their appearance in the ES fraction may be indicative of worm damage ex vivo leading to protein leakage. Some bioactive schistosome ES proteins are in development as novel therapeutics against autoimmune, inflammatory, and other, non-parasitic, diseases.
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Affiliation(s)
- Patrick J Skelly
- Molecular Helminthology Laboratory, Department of Infectious Disease and Global Health, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, USA.
| | - Akram A Da'dara
- Molecular Helminthology Laboratory, Department of Infectious Disease and Global Health, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, USA
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24
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Abou-El-Naga IF. Emerging roles for extracellular vesicles in Schistosoma infection. Acta Trop 2022; 232:106467. [PMID: 35427535 DOI: 10.1016/j.actatropica.2022.106467] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 02/05/2022] [Accepted: 04/11/2022] [Indexed: 11/01/2022]
Abstract
The co-evolution of Schistosoma and its host necessitates the use of extracellular vesicles (EVs) generated by different lifecycle stages to manipulate the host immune system to achieve a delicate balance between the survival of the parasite and the limited pathology of the host. EVs are phospholipid bilayer membrane-enclosed vesicles capable of transferring a complex mixture of proteins, lipids, and genetic materials to the host. They are nano-scale-sized vesicles involved in cellular communication. In this review, the author summarized the proteins involved in the biogenesis of schistosome-derived EVs and their cargo load. miRNAs are one cargo molecule that can underpin EVs functions and significantly affect parasite/host interactions and immune modulation. They skew macrophage polarization towards the M1 phenotype and downregulate Th2 immunity. Schistosoma can evade the host immune system's harmful effects by utilizing this strategy. In order to compromise the protective effect of Th2, EVs upregulate T regulatory cells and activate eosinophils, which contribute to granuloma formation. Schistosomal EVs also affect fibrosis by acting on non-immune cells such as hepatic stellate cells. These vesicles drew attention to translational applications in diagnosis, immunotherapy, and potential vaccines. A deep understanding of the interaction of schistosome-derived EVs with host cells will significantly increase our knowledge about the dynamics between the host and the worm that may aid in controlling this debilitating disease.
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25
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Chen R, Wang J, Gradinaru I, Vu HS, Geboers S, Naidoo J, Ready JM, Williams NS, DeBerardinis RJ, Ross EM, Collins JJ. A male-derived nonribosomal peptide pheromone controls female schistosome development. Cell 2022; 185:1506-1520.e17. [PMID: 35385687 PMCID: PMC9058237 DOI: 10.1016/j.cell.2022.03.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/18/2022] [Accepted: 03/11/2022] [Indexed: 11/23/2022]
Abstract
Schistosomes cause morbidity and death throughout the developing world due to the massive numbers of eggs female worms deposit into the blood of their host. Studies dating back to the 1920s show that female schistosomes rely on constant physical contact with a male worm both to become and remain sexually mature; however, the molecular details governing this process remain elusive. Here, we uncover a nonribosomal peptide synthetase that is induced in male worms upon pairing with a female and find that it is essential for the ability of male worms to stimulate female development. We demonstrate that this enzyme generates β-alanyl-tryptamine that is released by paired male worms. Furthermore, synthetic β-alanyl-tryptamine can replace male worms to stimulate female sexual development and egg laying. These data reveal that peptide-based pheromone signaling controls female schistosome sexual maturation, suggesting avenues for therapeutic intervention and uncovering a role for nonribosomal peptides as metazoan signaling molecules.
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Affiliation(s)
- Rui Chen
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jipeng Wang
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA; State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200438, People's Republic of China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, People's Republic of China
| | - Irina Gradinaru
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hieu S Vu
- Children's Medical Center Research Institute, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sophie Geboers
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jacinth Naidoo
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Joseph M Ready
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Noelle S Williams
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ralph J DeBerardinis
- Children's Medical Center Research Institute, UT Southwestern Medical Center, Dallas, TX 75390, USA; Howard Hughes Medical Institute, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elliott M Ross
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - James J Collins
- Department of Pharmacology, UT Southwestern Medical Center, Dallas, TX 75390, USA.
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Optimized Protocol for the Isolation of Extracellular Vesicles from the Parasitic Worm Schistosoma mansoni with Improved Purity, Concentration, and Yield. J Immunol Res 2022; 2022:5473763. [PMID: 35434142 PMCID: PMC9012646 DOI: 10.1155/2022/5473763] [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: 01/25/2022] [Accepted: 02/21/2022] [Indexed: 11/17/2022] Open
Abstract
In the past decade, the interest in helminth-derived extracellular vesicles (EVs) increased owing to their role in pathogen-host communication. However, the availability of EVs from these parasitic worms is often limited due to the restricted occurrence and culturing possibilities of these organisms. Schistosoma mansoni is one of several helminths that have been shown to release EVs affecting the immune response of their host. Further investigation of mechanisms underlying these EV-induced effects warrants separation of EVs from other components of the helminth excretory/secretory products. However, isolation of high-purity EVs often come to the expense of reduced EV yield. We therefore aimed to develop an optimized protocol for isolation of EVs from S. mansoni schistosomula and adult worms with respect to purity, concentration, and yield. We tested the use of small (1.7 ml) iodixanol density gradients and demonstrated that this enabled western blot-based analysis of the EV marker protein tetraspanin-2 (TSP-2) in gradient fractions without additional concentration steps. Moreover, the concentration and yield of EVs obtained with small iodixanol gradients were higher compared to medium-sized (4.3 ml) or conventional large-sized (12 ml) gradients. Additionally, we provide evidence that iodixanol is preferred over sucrose as medium for the small density gradients, because EVs in iodixanol gradients reached equilibrium much faster (2 hours) and iodixanol but not sucrose was suitable for purification of schistosomula EVs. Finally, we demonstrate that the small iodixanol gradients were able to separate adult worm EVs from non-EV contaminants such as the blood digestion product hemozoin. Our optimized small iodixanol density gradient allows to simultaneously separate and concentrate EVs while reducing handling time and EV loss and can be applied for EVs from helminths and other limited EV sources.
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Abstract
INTRODUCTION Schistosomes are long-lived blood dwelling helminth parasites using intricate mechanisms to invade, mature, and reproduce inside their vertebrate hosts, whilst simultaneously deploying immune evasion strategies. Their multi-tissue organization and solid body plan presents particular problems for the definition of sub-proteomes. AREAS COVERED Here, we focus on the two host-parasite interfaces of the adult worm accessible to the immune system, namely the tegument and the alimentary tract, but also on the secretions of the infective cercaria, the migrating schistosomulum and the mature egg. In parallel, we introduce the concepts of "leakyome' and 'disintegrome' to emphasize the importance of interpreting data in the context of schistosome biology so that misleading conclusions about the distinct proteome compositions are avoided. Lastly, we highlight the possible clinical implications of the reviewed proteomic findings for pathogenesis, vaccine design and diagnostics. EXPERT OPINION Proteomics has provided considerable insights into the biology of schistosomes, most importantly for rational selection of novel vaccine candidates that might confer protective immunity, but also into the pathogenesis of schistosomiasis. However, given the increasing sensitivity of mass spectrometric instrumentation, we stress the need for care in data interpretation since schistosomes do not deviate from the fundamental rules of eukaryotic cell biology.
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Affiliation(s)
- William Castro-Borges
- Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brasil
| | - R Alan Wilson
- Department of Biology and York Biomedical Research Institute, University of York, Heslington, York, UK
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Dagenais M, Gerlach JQ, Geary TG, Long T. Sugar Coating: Utilisation of Host Serum Sialoglycoproteins by Schistosoma mansoni as a Potential Immune Evasion Mechanism. Pathogens 2022; 11:pathogens11040426. [PMID: 35456101 PMCID: PMC9030049 DOI: 10.3390/pathogens11040426] [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: 02/20/2022] [Revised: 03/26/2022] [Accepted: 03/30/2022] [Indexed: 11/21/2022] Open
Abstract
Parasitic helminths resort to various mechanisms to evade and modulate their host’s immune response, several of which have been described for Schistosoma mansoni. We recently reported the presence of sialic acid residues on the surface of adult S. mansoni extracellular vesicles (EVs). We now report that these sialylated molecules are mammalian serum proteins. In addition, our data suggest that most sialylated EV-associated proteins do not elicit a humoral response upon injection into mice, or in sera obtained from infected animals. Sialic acids frequently terminate glycans on the surface of vertebrate cells, where they serve important functions in physiological processes such as cell adhesion and signalling. Interestingly, several pathogens have evolved ways to mimic or utilise host sialic acid beneficially by coating their own proteins, thereby facilitating cell invasion and providing protection from host immune effectors. Together, our results indicate that S. mansoni EVs are coated with host glycoproteins, which may contribute to immune evasion by masking antigenic sites, protecting EVs from removal from serum and aiding in cell adhesion and entry to exert their functions.
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Affiliation(s)
- Maude Dagenais
- Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (T.G.G.); (T.L.)
- Correspondence:
| | - Jared Q. Gerlach
- Advanced Glycoscience Research Cluster, National University of Ireland-Galway, H91 TK33 Galway, Ireland;
| | - Timothy G. Geary
- Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (T.G.G.); (T.L.)
- Microbes and Pathogen Biology, The Institute for Global Food Security, School of Biological Sciences, Queen’s University-Belfast, Belfast BT9 5DL, UK
| | - Thavy Long
- Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (T.G.G.); (T.L.)
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Chaiyadet S, Sotillo J, Krueajampa W, Thongsen S, Smout M, Brindley PJ, Laha T, Loukas A. Silencing of Opisthorchis viverrini Tetraspanin Gene Expression Results in Reduced Secretion of Extracellular Vesicles. Front Cell Infect Microbiol 2022; 12:827521. [PMID: 35223551 PMCID: PMC8875506 DOI: 10.3389/fcimb.2022.827521] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/19/2022] [Indexed: 12/12/2022] Open
Abstract
Inter-phylum transfer of molecular information is exquisitely exemplified in the uptake of parasite extracellular vesicles (EVs) by their target mammalian host tissues. The oriental liver fluke, Opisthorchis viverrini is the major cause of bile duct cancer in people in Southeast Asia. A major mechanism by which O. viverrini promotes cancer is through the secretion of excretory/secretory products which contain extracellular vesicles (OvEVs). OvEVs contain microRNAs that are predicted to impact various mammalian cell proliferation pathways, and are internalized by cholangiocytes that line the bile ducts. Upon uptake, OvEVs drive relentless proliferation of cholangiocytes and promote a tumorigenic environment, but the underlying mechanisms of this process are unknown. Moreover, purification and characterization methods for helminth EVs in general are ill defined. We therefore compared different purification methods for OvEVs and characterized the sub-vesicular compartment proteomes. Two CD63-like tetraspanins (Ov-TSP-2 and TSP-3) are abundant on the surface of OvEVs, and could serve as biomarkers for these parasite vesicles. Anti-TSP-2 and -TSP-3 IgG, as well as different endocytosis pathway inhibitors significantly reduced OvEV uptake and subsequent proliferation of cholangiocytes in vitro. Silencing of Ov-tsp-2 and tsp-3 gene expression in adult flukes using RNA interference resulted in substantial reductions in OvEV secretion, and those vesicles that were secreted were deficient in their respective TSP proteins. Our findings shed light on the importance of tetraspanins in fluke EV biogenesis and/or stability, and provide a conceivable mechanism for the efficacy of anti-tetraspanin subunit vaccines against a range of parasitic helminth infections.
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Affiliation(s)
- Sujittra Chaiyadet
- Tropical Medicine Graduate Program, Academic Affairs, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Javier Sotillo
- Parasitology Reference and Research Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Watchara Krueajampa
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sophita Thongsen
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Michael Smout
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
| | - Paul J. Brindley
- Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, George Washington University, Washington, DC, United States
| | - Thewarach Laha
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- *Correspondence: Alex Loukas, ; Thewarach Laha,
| | - Alex Loukas
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
- *Correspondence: Alex Loukas, ; Thewarach Laha,
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Kumagai T, Shimogawara R, Ichimura K, Iwanaga S. Calpain inhibitor suppresses both extracellular vesicle-mediated secretion of miRNAs and egg production from paired adults of Schistosoma japonicum. Parasitol Int 2022; 87:102540. [PMID: 35007765 DOI: 10.1016/j.parint.2022.102540] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 01/08/2023]
Abstract
Extracellular vesicles (EVs) have been reported to be secreted from Schistosoma japonicum at all developmental stages. However, the reproduction and communication mechanisms between the paired adults through the EVs in dioecious Trematoda have not been reported. In this study, EVs containing many exosome-like vesicles and microvesicles were observed in the supernatants of paired adults cultured in vitro, and abundant selected miRNAs were contained in them. In particular, the female-specific miR-bantam was present only in vesicles and was hardly secreted outside the vesicles. In this study, we found that male-female pairing induced secretion of miR-3479 and miR-bantam in EVs, but not of male-specific miR-61. Furthermore, ingestion of mouse erythrocytes also increased the production of miRNAs in paired adult and single female worms. Vesicles were found in the tegument of females treated with erythrocytes under electron microscopy. After the paired worms were treated with several inhibitors against the secretion of EVs, only calpain inhibitor (calpeptin) significantly reduced the amount of miRNA in EVs. Furthermore, the worms treated with only calpeptin inhibited egg production in vitro. Together, these results indicate that qualitative miRNA production through EVs regulated by calpain plays a role in egg production in S. japonicum.
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Affiliation(s)
- Takashi Kumagai
- Department of Parasitology and Tropical Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
| | - Rieko Shimogawara
- Department of Parasitology and Tropical Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
| | - Koichiro Ichimura
- Department of Anatomy and Life Structure, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Shiroh Iwanaga
- Department of Molecular Protozoology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Mekonnen GG, Tedla BA, Pearson MS, Becker L, Field M, Amoah AS, van Dam G, Corstjens PLAM, Mduluza T, Mutapi F, Loukas A, Sotillo J. Characterisation of tetraspanins from Schistosoma haematobium and evaluation of their potential as novel diagnostic markers. PLoS Negl Trop Dis 2022; 16:e0010151. [PMID: 35073344 PMCID: PMC8812969 DOI: 10.1371/journal.pntd.0010151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/03/2022] [Accepted: 01/06/2022] [Indexed: 01/01/2023] Open
Abstract
Schistosoma haematobium is the leading cause of urogenital schistosomiasis and it is recognised as a class 1 carcinogen due to the robust association of infection with bladder cancer. In schistosomes, tetraspanins (TSPs) are abundantly present in different parasite proteomes and could be potential diagnostic candidates due to their accessibility to the host immune system. The large extracellular loops of six TSPs from the secretome (including the soluble excretory/secretory products, tegument and extracellular vesicles) of S. haematobium (Sh-TSP-2, Sh-TSP-4, Sh-TSP-5, Sh-TSP-6, Sh-TSP-18 and Sh-TSP-23) were expressed in a bacterial expression system and polyclonal antibodies were raised to the recombinant proteins to confirm the anatomical sites of expression within the parasite. Sh-TSP-2, and Sh-TSP-18 were identified on the tegument, whereas Sh-TSP-4, Sh-TSP-5, Sh-TSP-6 and Sh-TSP-23 were identified both on the tegument and internal tissues of adult parasites. The mRNAs encoding these TSPs were differentially expressed throughout all schistosome developmental stages tested. The potential diagnostic value of three of these Sh-TSPs was assessed using the urine of individuals (stratified by infection intensity) from an endemic area of Zimbabwe. The three Sh-TSPs were the targets of urine IgG responses in all cohorts, including individuals with very low levels of infection (those positive for circulating anodic antigen but negative for eggs by microscopy). This study provides new antigen candidates to immunologically diagnose S. haematobium infection, and the work presented here provides compelling evidence for the use of a biomarker signature to enhance the diagnostic capability of these tetraspanins. Schistosoma haematobium, the leading cause of urogenital schistosomiasis, affects millions of people worldwide. Infection with this parasite is associated with different clinical complications such as squamous cell carcinoma and genital malignancy in women. Despite its importance, there is a lack of sensitive and specific diagnostics that support control and elimination initiatives against this devastating disease. Herein, we have characterised six molecules belonging to the tetraspanin family of membrane proteins, providing details about their relative expression during parasite’s development and their localization in adult forms of S. haematobium. Furthermore, we have characterised the antibody responses against three of these molecules in urine from infected human subjects from an endemic area, providing compelling evidence for the use of these molecules to diagnose urogenital schistosomiasis.
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Affiliation(s)
- Gebeyaw G. Mekonnen
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
- Department of Medical Parasitology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Bemnet A. Tedla
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Mark S. Pearson
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
- * E-mail: (MSP); (AL); (JS)
| | - Luke Becker
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Matt Field
- Australian Institute of Tropical Health & Medicine and Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Cairns, Australia
- Immunogenomics Lab, Garvan Institute of Medical Research, Darlinghurst, Australia
- Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Abena S. Amoah
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Malawi Epidemiology and Intervention Research Unit, Chilumba, Malawi
| | - Govert van Dam
- Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul L. A. M. Corstjens
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Takafira Mduluza
- Biochemistry Department, University of Zimbabwe, P.O. Box MP167, Mount Pleasant, Harare, Zimbabwe
- Tackling Infections to Benefit Africa Partnership, NIHR Global Health Research Unit, University of Zimbabwe, Mount Pleasant, Harare, Zimbabwe
| | - Francisca Mutapi
- Tackling Infections to Benefit Africa Partnership, NIHR Global Health Research Unit, University of Zimbabwe, Mount Pleasant, Harare, Zimbabwe
- Institute of Immunology & Infection Research, Ashworth Laboratories, University of Edinburgh, King’s Buildings, Edinburgh, United Kingdom
| | - Alex Loukas
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
- * E-mail: (MSP); (AL); (JS)
| | - Javier Sotillo
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- * E-mail: (MSP); (AL); (JS)
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Abstract
Schistosomes are long lived, intravascular parasitic platyhelminths that infect >200 million people globally. The molecular mechanisms used by these blood flukes to dampen host immune responses are described in this review. Adult worms express a collection of host-interactive tegumental ectoenzymes that can cleave host signaling molecules such as the "alarmin" ATP (cleaved by SmATPDase1), the platelet activator ADP (SmATPDase1, SmNPP5), and can convert AMP into the anti-inflammatory mediator adenosine (SmAP). SmAP can additionally cleave the lipid immunomodulator sphingosine-1-phosphate and the proinflammatory anionic polymer, polyP. In addition, the worms release a barrage of proteins (e.g., SmCB1, SjHSP70, cyclophilin A) that can impinge on immune cell function. Parasite eggs also release their own immunoregulatory proteins (e.g., IPSE/α1, omega1, SmCKBP) as do invasive cercariae (e.g., Sm16, Sj16). Some schistosome glycans (e.g., LNFPIII, LNnT) and lipids (e.g., Lyso-PS, LPC), produced by several life stages, likewise affect immune cell responses. The parasites not only produce eicosanoids (e.g., PGE2, PGD2-that can be anti-inflammatory) but can also induce host cells to release these metabolites. Finally, the worms release extracellular vesicles (EVs) containing microRNAs, and these too have been shown to skew host cell metabolism. Thus, schistosomes employ an array of biomolecules-protein, lipid, glycan, nucleic acid, and more, to bend host biochemistry to their liking. Many of the listed molecules have been individually shown capable of inducing aspects of the polarized Th2 response seen following infection (with the generation of regulatory T cells (Tregs), regulatory B cells (Bregs) and anti-inflammatory, alternatively activated (M2) macrophages). Precisely how host cells integrate the impact of these myriad parasite products following natural infection is not known. Several of the schistosome immunomodulators described here are in development as novel therapeutics against autoimmune, inflammatory, and other, nonparasitic, diseases.
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Affiliation(s)
- Sreemoyee Acharya
- Molecular Helminthology Laboratory, Department of Infectious Disease and Global Health, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, United States of America
| | - Akram A. Da’dara
- Molecular Helminthology Laboratory, Department of Infectious Disease and Global Health, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, United States of America
| | - Patrick J. Skelly
- Molecular Helminthology Laboratory, Department of Infectious Disease and Global Health, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, United States of America
- * E-mail:
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Sotillo J. MS-Based Extracellular Vesicle (EVs) Analysis: An Application to Helminth-Secreted EVs. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2021; 2420:11-20. [PMID: 34905162 DOI: 10.1007/978-1-0716-1936-0_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Parasite infections caused by helminths affect hundreds of millions worldwide. Despite their socioeconomic importance and impact on health, there is still an urgent need to develop appropriate control approaches. The recent discovery that helminths, as most eukaryotic organisms, secrete extracellular vesicles (EVs) of different type has opened new avenues for the characterization of novel diagnostic and vaccine candidates that could serve for this purpose. Herein, we describe a method for the isolation of highly pure microvesicles and exosomes, two of the most relevant populations of EVs secreted by helminths, and describe a validated approach to characterize the proteins from different compartments of EVs. These proteins could be further developed into suitable diagnostic and vaccine candidates against these devastating infections.
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Affiliation(s)
- Javier Sotillo
- Laboratorio de Referencia e Investigación en Parasitología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain.
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Fifty years of the schistosome tegument: discoveries, controversies, and outstanding questions. Int J Parasitol 2021; 51:1213-1232. [PMID: 34767805 DOI: 10.1016/j.ijpara.2021.11.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/01/2021] [Accepted: 11/01/2021] [Indexed: 11/21/2022]
Abstract
The unique multilaminate appearance of the tegument surface of schistosomes was first described in 1973, in one of the earliest volumes of the International Journal for Parasitology. The present review, published almost 50 years later, traces the development of our knowledge of the tegument, starting with those earliest cytological advances, particularly the surface plasma membrane-membranocalyx complex, through an era of protein discovery to the modern age of protein characterization, aided by proteomics. More recently, analysis of single cell transcriptomes of schistosomes is providing insight into the organisation of the cell bodies that support the surface syncytium. Our understanding of the tegument, notably the nature of the proteins present within the plasma membrane and membranocalyx, has provided insights into how the schistosomes interact with their hosts but many aspects of how the tegument functions remain unanswered. Among the unresolved aspects are those concerned with maintenance and renewal of the surface membrane complex, and whether surface proteins and membrane components are recycled. Current controversies arising from investigations about whether the tegument is a source of extracellular vesicles during parasitism, and if it is covered with glycolytic enzymes, are evaluated in the light of cytological and proteomic knowledge of the layer.
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Gasan TA, Kuipers ME, Roberts GH, Padalino G, Forde-Thomas JE, Wilson S, Wawrzyniak J, Tukahebwa EM, Hoffmann KF, Chalmers IW. Schistosoma mansoni Larval Extracellular Vesicle protein 1 (SmLEV1) is an immunogenic antigen found in EVs released from pre-acetabular glands of invading cercariae. PLoS Negl Trop Dis 2021; 15:e0009981. [PMID: 34793443 PMCID: PMC8639091 DOI: 10.1371/journal.pntd.0009981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/02/2021] [Accepted: 11/06/2021] [Indexed: 01/10/2023] Open
Abstract
Extracellular Vesicles (EVs) are an integral component of cellular/organismal communication and have been found in the excreted/secreted (ES) products of both protozoan and metazoan parasites. Within the blood fluke schistosomes, EVs have been isolated from egg, schistosomula, and adult lifecycle stages. However, the role(s) that EVs have in shaping aspects of parasite biology and/or manipulating host interactions is poorly defined. Herein, we characterise the most abundant EV-enriched protein in Schistosoma mansoni tissue-migrating schistosomula (Schistosoma mansoni Larval Extracellular Vesicle protein 1 (SmLEV1)). Comparative sequence analysis demonstrates that lev1 orthologs are found in all published Schistosoma genomes, yet homologs are not found outside of the Schistosomatidae. Lifecycle expression analyses collectively reveal that smlev1 transcription peaks in cercariae, is male biased in adults, and is processed by alternative splicing in intra-mammalian lifecycle stages. Immunohistochemistry of cercariae using a polyclonal anti-recombinant SmLEV1 antiserum localises this protein to the pre-acetabular gland, with some disperse localisation to the surface of the parasite. S. mansoni-infected Ugandan fishermen exhibit a strong IgG1 response against SmLEV1 (dropping significantly after praziquantel treatment), with 11% of the cohort exhibiting an IgE response and minimal levels of detectable antigen-specific IgG4. Furthermore, mice vaccinated with rSmLEV1 show a slightly reduced parasite burden upon challenge infection and significantly reduced granuloma volumes, compared with control animals. Collectively, these results describe SmLEV1 as a Schistosomatidae-specific, EV-enriched immunogen. Further investigations are now necessary to uncover the full extent of SmLEV1's role in shaping schistosome EV function and definitive host relationships.
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Affiliation(s)
- Thomas A. Gasan
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Edward Llwyd Building, Aberystwyth, United Kingdom
| | - Marije E. Kuipers
- Department of Parasitology, Leiden University Medical Centre, Leiden, Netherlands
| | - Grisial H. Roberts
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Edward Llwyd Building, Aberystwyth, United Kingdom
| | - Gilda Padalino
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Edward Llwyd Building, Aberystwyth, United Kingdom
| | - Josephine E. Forde-Thomas
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Edward Llwyd Building, Aberystwyth, United Kingdom
| | - Shona Wilson
- University of Cambridge, Department of Pathology, Tennis Court Road, Cambridge, United Kingdom
| | - Jakub Wawrzyniak
- University of Cambridge, Department of Pathology, Tennis Court Road, Cambridge, United Kingdom
| | | | - Karl F. Hoffmann
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Edward Llwyd Building, Aberystwyth, United Kingdom
| | - Iain W. Chalmers
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Edward Llwyd Building, Aberystwyth, United Kingdom
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Dagenais M, Gerlach JQ, Wendt GR, Collins JJ, Atkinson LE, Mousley A, Geary TG, Long T. Analysis of Schistosoma mansoni Extracellular Vesicles Surface Glycans Reveals Potential Immune Evasion Mechanism and New Insights on Their Origins of Biogenesis. Pathogens 2021; 10:1401. [PMID: 34832557 PMCID: PMC8617790 DOI: 10.3390/pathogens10111401] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/26/2022] Open
Abstract
Parasitic helminths are master manipulators of host immunity. Their strategy is complex and involves the release of excreted/secreted products, including extracellular vesicles (EVs). The protein and miRNA contents of EVs have been characterised for many parasitic helminths but, despite reports suggesting the importance of EV surface carbohydrate structures (glycans) in the interactions with target cells and thus subsequent effector functions, little is known about parasite EV glycomics. Using lectin microarrays, we identified several lectins that exhibit strong adhesion to Schistosoma mansoni EVs, suggesting the presence of multiple glycan structures on these vesicles. Interestingly, SNA-I, a lectin that recognises structures with terminal sialic acid, displayed strong affinity for S. mansoni EVs, which was completely abolished by neuraminidase treatment, suggesting sialylation in the EV sample. This finding is of interest, as sialic acids play important roles in the context of infection by aiding immune evasion, affecting target recognition, cell entry, etc., but are not thought to be synthesised by helminths. These data were validated by quantitative analysis of free sialic acid released from EVs following treatment with neuraminidase. Lectin histochemistry and fluorescence in situ hybridisation analyses on whole adult worms suggest the involvement of sub-tegumental cell bodies, as well as the digestive and excretory systems, in the release of EVs. These results support previous reports of EV biogenesis diversity in trematodes and potentially highlight new means of immune modulation and evasion employed by schistosomes.
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Affiliation(s)
- Maude Dagenais
- Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (T.G.G.); (T.L.)
| | - Jared Q. Gerlach
- Glycoscience Group, Advanced Glycoscience Research Cluster, National Centre for Biomedical Engineering Science, National University of Ireland Galway, H91 TK33 Galway, Ireland;
| | - George R. Wendt
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (G.R.W.); (J.J.C.III)
| | - James J. Collins
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (G.R.W.); (J.J.C.III)
| | - Louise E. Atkinson
- Microbes and Pathogen Biology, The Institute for Global Food Security, School of Biological Sciences, Queen’s University-Belfast, Belfast BT9 5DL, UK; (L.E.A.); (A.M.)
| | - Angela Mousley
- Microbes and Pathogen Biology, The Institute for Global Food Security, School of Biological Sciences, Queen’s University-Belfast, Belfast BT9 5DL, UK; (L.E.A.); (A.M.)
| | - Timothy G. Geary
- Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (T.G.G.); (T.L.)
- Microbes and Pathogen Biology, The Institute for Global Food Security, School of Biological Sciences, Queen’s University-Belfast, Belfast BT9 5DL, UK; (L.E.A.); (A.M.)
| | - Thavy Long
- Institute of Parasitology, McGill University, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; (T.G.G.); (T.L.)
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Schistosoma mansoni egg-derived extracellular vesicles: A promising vaccine candidate against murine schistosomiasis. PLoS Negl Trop Dis 2021; 15:e0009866. [PMID: 34644290 PMCID: PMC8544836 DOI: 10.1371/journal.pntd.0009866] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/25/2021] [Accepted: 09/30/2021] [Indexed: 02/05/2023] Open
Abstract
Extracellular vesicles (EVs) are protein-loaded nano-scaled particles that are extracellularly released by eukaryotes and prokaryotes. Parasite's EVs manipulate the immune system, making them probable next-generation vaccines. Schistosomal EVs carry different proteins of promising immunizing potentials. For evaluating the immune-protective role of Schistosoma mansoni (S. mansoni) egg-derived EVs against murine schistosomiasis, EVs were isolated from cultured S. mansoni eggs by progressive sequential cooling ultra-centrifugation technique. Isolated EVs were structurally identified using transmission electron microscope and their protein was quantified by Lowry's technique. Experimental mice were subcutaneously immunized with three doses of 20 μg EVs (with or without alum adjuvant); every two weeks, then were challenged with S. mansoni cercariae two weeks after the last immunizing dose. Six weeks post infection, mice were sacrificed for vaccine candidate assessment. EVs protective efficacy was evaluated through parasitological, histopathological, and immunological parameters. Results showed significant reduction of tegumentally deranged adult worms, hepatic and intestinal egg counts reduction by 46.58%, 93.14% and 93.17% respectively, accompanied by remarkable amelioration of sizes, numbers and histopathology of hepatic granulomata mediated by high interferon gamma (IFN γ) and antibody level. Using sera from vaccinated mice, the molecular weight of EVs' protein components targeted by the antibody produced was recognized by western immunoblot. Results revealed two bands of ~ 14 KDa and ~ 21 KDa, proving that EVs are able to stimulate specific antibodies response. In conclusion, the present study highlighted the role of S. mansoni-egg derived EVs as a potential vaccine candidate against murine schistosomiasis mansoni.
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McManus DP. The Search for a Schistosomiasis Vaccine: Australia's Contribution. Vaccines (Basel) 2021; 9:vaccines9080872. [PMID: 34451997 PMCID: PMC8402410 DOI: 10.3390/vaccines9080872] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/05/2021] [Accepted: 08/05/2021] [Indexed: 01/10/2023] Open
Abstract
Schistosomiasis, a neglected tropical disease caused by parasitic flatworms of the genus Schistosoma, results in considerable human morbidity in sub-Saharan Africa, in particular, but also parts of the Middle East, South America, and Southeast Asia. The anti-schistosome drug praziquantel is efficacious and safe against the adult parasites of all Schistosoma species infecting humans; however, it does not prevent reinfection and the development of drug resistance is a constant concern. The need to develop an effective vaccine is of great importance if the health of many in the developing world is to be improved. Indeed, vaccination, in combination with other public health measures, can provide an invaluable tool to achieve lasting control, leading to schistosomiasis elimination. Australia has played a leading role in schistosomiasis vaccine research over many years and this review presents an overview of some of the significant contributions made by Australian scientists in this important area.
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Affiliation(s)
- Donald P McManus
- Molecular Parasitology Laboratory, Infectious Diseases Division, QIMR Berghofer Medical Research Institute, Brisbane 4006, Australia
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Ilić N, Kosanović M, Gruden-Movsesijan A, Glamočlija S, Sofronić-Milosavljević L, Čolić M, Tomić S. Harnessing immunomodulatory mechanisms of Trichinella spiralis to design novel nanomedical approaches for restoring self-tolerance in autoimmunity. Immunol Lett 2021; 238:57-67. [PMID: 34363897 DOI: 10.1016/j.imlet.2021.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/28/2021] [Accepted: 04/28/2021] [Indexed: 01/13/2023]
Abstract
The rapid increase in the prevalence of autoimmune diseases in recent decades, especially in developed countries, coincided with improved living conditions and healthcare. Part of this increase could be ascribed to the lack of exposure to infectious agents like helminths that co-evolved with us and display potent immune regulatory actions. In this review we discussed many investigations, including our own, showing that Trichinella spiralis via its excretory-secretory products attenuate Th1/Th17 immunopathological response in autoimmunity and potentiate the protective Th2 and or regulatory T cell response, acting as an effective induction of tolerogenic dendritic cells (DCs), and probably mimicking the autoantigen in some diseases. A recent discovery of T. spiralis extracellular vesicles (TsEVs) suggested that inducing a complex regulation of the immune response requires simultaneous delivery of different signals in nano-sized packages. Indeed, different artificial nanomedical approaches discussed here suggested that co-delivery of multiple signals via nanoparticles is the most promising strategy for the treatment of autoimmune diseases. Although a long way is ahead of us before we could completely replicate natural nano-delivery systems which are both safe and potent in restoring self-tolerance, a clear path is being opened from a careful examination of parasite-host interactions.
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Affiliation(s)
- Nataša Ilić
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia
| | - Maja Kosanović
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia
| | - Alisa Gruden-Movsesijan
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia
| | - Sofija Glamočlija
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia
| | - Ljiljana Sofronić-Milosavljević
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia
| | - Miodrag Čolić
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia; Medical Faculty Foča, University of East Sarajevo, Bosnia and Hercegovina; Serbian Academy of Sciences and Arts, Belgrade, Serbia
| | - Sergej Tomić
- Department for Immunology and Immunoparasitology, Institute for the Application of Nuclear Energy, University in Belgrade, Serbia.
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Santos P, Almeida F. Exosome-Based Vaccines: History, Current State, and Clinical Trials. Front Immunol 2021; 12:711565. [PMID: 34335627 PMCID: PMC8317489 DOI: 10.3389/fimmu.2021.711565] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/30/2021] [Indexed: 12/23/2022] Open
Abstract
Extracellular vesicles (EVs) are released by most cell types as part of an intracellular communication system in crucial processes such as inflammation, cell proliferation, and immune response. However, EVs have also been implicated in the pathogenesis of several diseases, such as cancer and numerous infectious diseases. An important feature of EVs is their ability to deliver a wide range of molecules to nearby targets or over long distances, which allows the mediation of different biological functions. This delivery mechanism can be utilized for the development of therapeutic strategies, such as vaccination. Here, we have highlighted several studies from a historical perspective, with respect to current investigations on EV-based vaccines. For example, vaccines based on exosomes derived from dendritic cells proved to be simpler in terms of management and cost-effectiveness than dendritic cell vaccines. Recent evidence suggests that EVs derived from cancer cells can be leveraged for therapeutics to induce strong anti-tumor immune responses. Moreover, EV-based vaccines have shown exciting and promising results against different types of infectious diseases. We have also summarized the results obtained from completed clinical trials conducted on the usage of exosome-based vaccines in the treatment of cancer, and more recently, coronavirus disease.
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Affiliation(s)
- Patrick Santos
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Fausto Almeida
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Mu Y, McManus DP, Gordon CA, Cai P. Parasitic Helminth-Derived microRNAs and Extracellular Vesicle Cargos as Biomarkers for Helminthic Infections. Front Cell Infect Microbiol 2021; 11:708952. [PMID: 34249784 PMCID: PMC8267863 DOI: 10.3389/fcimb.2021.708952] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/14/2021] [Indexed: 12/11/2022] Open
Abstract
As an adaption to their complex lifecycles, helminth parasites garner a unique repertoire of genes at different developmental stages with subtle regulatory mechanisms. These parasitic worms release differential components such as microRNAs (miRNAs) and extracellular vesicles (EVs) as mediators which participate in the host-parasite interaction, immune regulation/evasion, and in governing processes associated with host infection. MiRNAs are small (~ 22-nucleotides) non-coding RNAs that regulate gene expression at the post-transcriptional level, and can exist in stable form in bodily fluids such as serum/plasma, urine, saliva and bile. In addition to reports focusing on the identification of miRNAs or in the probing of differentially expressed miRNA profiles in different development stages/sexes or in specific tissues, a number of studies have focused on the detection of helminth-derived miRNAs in the mammalian host circulatory system as diagnostic biomarkers. Extracellular vesicles (EVs), small membrane-surrounded structures secreted by a wide variety of cell types, contain rich cargos that are important in cell-cell communication. EVs have attracted wide attention due to their unique functional relevance in host-parasite interactions and for their potential value in translational applications such as biomarker discovery. In the current review, we discuss the status and potential of helminth parasite-derived circulating miRNAs and EV cargos as novel diagnostic tools.
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Affiliation(s)
- Yi Mu
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Donald P McManus
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Catherine A Gordon
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Pengfei Cai
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
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Yuan Y, Zhao J, Chen M, Liang H, Long X, Zhang B, Chen X, Chen Q. Understanding the Pathophysiology of Exosomes in Schistosomiasis: A New Direction for Disease Control and Prevention. Front Immunol 2021; 12:634138. [PMID: 34220800 PMCID: PMC8242937 DOI: 10.3389/fimmu.2021.634138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
Schistosomiasis is a parasitic disease endemic to freshwater areas of Southeast Asia, Africa, and South America that is capable of causing serious damage to the internal organs. Recent studies have linked exosomes to the progression of schistosomiasis. These structures are important mediators for intercellular communication, assist cells to exchange proteins, lipids, and genetic material and have been shown to play critical roles during host–parasite interactions. This review aims to discuss the pathophysiology of exosomes in schistosomiasis and their roles in regulating the host immune response. Understanding how exosomes are involved in the pathogenesis of schistosomiasis may provide new perspectives in diagnosing and treating this neglected disease.
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Affiliation(s)
- Yue Yuan
- Division of Gastroenterology, Department of Internal Medicine at Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Jianping Zhao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Min Chen
- Division of Gastroenterology, Department of Internal Medicine at Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Huifang Liang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Xin Long
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Bixiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Xiaoping Chen
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
| | - Qian Chen
- Division of Gastroenterology, Department of Internal Medicine at Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China
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Al-Naseri A, Al-Absi S, El Ridi R, Mahana N. A comprehensive and critical overview of schistosomiasis vaccine candidates. J Parasit Dis 2021; 45:557-580. [PMID: 33935395 PMCID: PMC8068781 DOI: 10.1007/s12639-021-01387-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/31/2021] [Indexed: 12/11/2022] Open
Abstract
A digenetic platyhelminth Schistosoma is the causative agent of schistosomiasis, one of the neglected tropical diseases that affect humans and animals in numerous countries in the Middle East, sub-Saharan Africa, South America and China. Several control methods were used for prevention of infection or treatment of acute and chronic disease. Mass drug administration led to reduction in heavy-intensity infections and morbidity, but failed to decrease schistosomiasis prevalence and eliminate transmission, indicating the need to develop anti-schistosome vaccine to prevent infection and parasite transmission. This review summarizes the efficacy and protective capacity of available schistosomiasis vaccine candidates with some insights and future prospects.
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Affiliation(s)
- Aya Al-Naseri
- Zoology Department, Faculty of Science, Cairo Univesity, Giza, 12613 Egypt
| | - Samar Al-Absi
- Zoology Department, Faculty of Science, Cairo Univesity, Giza, 12613 Egypt
| | - Rashika El Ridi
- Zoology Department, Faculty of Science, Cairo Univesity, Giza, 12613 Egypt
| | - Noha Mahana
- Zoology Department, Faculty of Science, Cairo Univesity, Giza, 12613 Egypt
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Ulrychová L, Ostašov P, Chanová M, Mareš M, Horn M, Dvořák J. Spatial expression pattern of serine proteases in the blood fluke Schistosoma mansoni determined by fluorescence RNA in situ hybridization. Parasit Vectors 2021; 14:274. [PMID: 34022917 PMCID: PMC8140508 DOI: 10.1186/s13071-021-04773-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/03/2021] [Indexed: 11/24/2022] Open
Abstract
Background The blood flukes of genus Schistosoma are the causative agent of schistosomiasis, a parasitic disease that infects more than 200 million people worldwide. Proteases of schistosomes are involved in critical steps of host–parasite interactions and are promising therapeutic targets. We recently identified and characterized a group of S1 family Schistosoma mansoni serine proteases, including SmSP1 to SmSP5. Expression levels of some SmSPs in S. mansoni are low, and by standard genome sequencing technologies they are marginally detectable at the method threshold levels. Here, we report their spatial gene expression patterns in adult S. mansoni by the high-sensitivity localization assay. Methodology Highly sensitive fluorescence in situ RNA hybridization (FISH) was modified and used for the localization of mRNAs encoding individual SmSP proteases (including low-expressed SmSPs) in tissues of adult worms. High sensitivity was obtained due to specifically prepared tissue and probes in combination with the employment of a signal amplification approach. The assay method was validated by detecting the expression patterns of a set of relevant reference genes including SmCB1, SmPOP, SmTSP-2, and Sm29 with localization formerly determined by other techniques. Results FISH analysis revealed interesting expression patterns of SmSPs distributed in multiple tissues of S. mansoni adults. The expression patterns of individual SmSPs were distinct but in part overlapping and were consistent with existing transcriptome sequencing data. The exception were genes with significantly low expression, which were also localized in tissues where they had not previously been detected by RNA sequencing methods. In general, SmSPs were found in various tissues including reproductive organs, parenchymal cells, esophagus, and the tegumental surface. Conclusions The FISH-based assay provided spatial information about the expression of five SmSPs in adult S. mansoni females and males. This highly sensitive method allowed visualization of low-abundantly expressed genes that are below the detection limits of standard in situ hybridization or by RNA sequencing. Thus, this technical approach turned out to be suitable for sensitive localization studies and may also be applicable for other trematodes. The results suggest that SmSPs may play roles in diverse processes of the parasite. Certain SmSPs expressed at the surface may be involved in host–parasite interactions. Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-021-04773-8.
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Affiliation(s)
- Lenka Ulrychová
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Flemingovo n. 2, 16610, Prague, Czech Republic.,Department of Parasitology, Faculty of Science, Charles University, Viničná 7, 12844, Prague 2, Czech Republic
| | - Pavel Ostašov
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300, Pilsen, Czech Republic
| | - Marta Chanová
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2028/7, 12800, Prague, Czech Republic
| | - Michael Mareš
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Flemingovo n. 2, 16610, Prague, Czech Republic
| | - Martin Horn
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Flemingovo n. 2, 16610, Prague, Czech Republic.
| | - Jan Dvořák
- Department of Zoology and Fisheries, Centre of Infectious Animal Diseases, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences in Prague, Kamýcká 129, 16500, Prague 6, Czech Republic.
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Transcriptional profiles of genes potentially involved in extracellular vesicle biogenesis in Schistosoma japonicum. Acta Trop 2021; 217:105851. [PMID: 33524382 DOI: 10.1016/j.actatropica.2021.105851] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 01/16/2021] [Accepted: 01/22/2021] [Indexed: 01/16/2023]
Abstract
Schistosomiasis is a severe chronic disease caused by parasitic worms of the genus Schistosoma. Recent studies indicate that schistosomes can secrete extracellular vesicles (EVs), which play important regulatory roles in many biological processes. However, the mechanisms underlying EV biogenesis in schistosomes are poorly understood. In this study, we performed bioinformatic analyses and identified several genes putatively involved in EV biogenesis in Schistosoma japonicum, which were then confirmed by PCR. Quantitative transcriptional profiles of the selected genes indicated that they were differentially expressed in male and female worms as well as in the different developmental stages of S. japonicum. Thus, the highest expression of VAMP3 was detected in cercariae, whereas that of ARF6 was detected in eggs. RAB11A and the Syntenin-encoding gene SDCBP were highly expressed in 14-day schistosomula and VPS4A and RAB27A were highly expressed in 35-day-old adult schistosomes. The expression of RAB11A, CHMP4C, VPS4A, and SDCBP was higher in male worms, whereas that of ARF6, VAMP3, and RAB27A was higher in female worms. Our results are expected to provide important clues for understanding the role of EV biogenesis in S. japonicum development.
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Allen NR, Taylor-Mew AR, Wilkinson TJ, Huws S, Phillips H, Morphew RM, Brophy PM. Modulation of Rumen Microbes Through Extracellular Vesicle Released by the Rumen Fluke Calicophoron daubneyi. Front Cell Infect Microbiol 2021; 11:661830. [PMID: 33959516 PMCID: PMC8096352 DOI: 10.3389/fcimb.2021.661830] [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: 01/31/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
Parasite derived extracellular vesicles (EVs) have been proposed to play key roles in the establishment and maintenance of infection. Calicophoron daubneyi is a newly emerging parasite of livestock with many aspects of its underpinning biology yet to be resolved. This research is the first in-depth investigation of EVs released by adult C. daubneyi. EVs were successfully isolated using both differential centrifugation and size exclusion chromatography (SEC), and morphologically characterized though transmission electron microscopy (TEM). EV protein components were characterized using a GeLC approach allowing the elucidation of comprehensive proteomic profiles for both their soluble protein cargo and surface membrane bound proteins yielding a total of 378 soluble proteins identified. Notably, EVs contained Sigma-class GST and cathepsin L and B proteases, which have previously been described in immune modulation and successful establishment of parasitic flatworm infections. SEC purified C. daubneyi EVs were observed to modulate rumen bacterial populations by likely increasing microbial species diversity via antimicrobial activity. This data indicates EVs released from adult C. daubneyi have a role in establishment within the rumen through the regulation of microbial populations offering new routes to control rumen fluke infection and to develop molecular strategies to improve rumen efficiency.
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Affiliation(s)
- Nathan R Allen
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Aspen R Taylor-Mew
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Toby J Wilkinson
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Sharon Huws
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, United Kingdom
| | - Helen Phillips
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Russell M Morphew
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Peter M Brophy
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
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Sánchez-López CM, Trelis M, Bernal D, Marcilla A. Overview of the interaction of helminth extracellular vesicles with the host and their potential functions and biological applications. Mol Immunol 2021; 134:228-235. [PMID: 33836351 DOI: 10.1016/j.molimm.2021.03.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 02/07/2023]
Abstract
Helminth Extracellular Vesicles (EVs) have emerged as important mediators in host-parasite communications, participating in the parasite survival and its pathogenic effects. In the last decade, a growing amount of information reporting the isolation and characterization of EVs from different helminth species has appeared, but unfortunately, few reports have focused on functional studies of helminth EVs in different cell lines, organoids or animal models. We here review these in vitro and in vivo studies, which clearly demonstrate that helminths secrete EVs, which affect their environment. Helminth EVs are actively internalized by different cell lines, modulating cellular functions important for host-parasite communication. We discuss how these lines of investigation should provide potential new biomarkers of infection, and since helminth EVs can modulate the host immune response, we also discuss how they can provide a new landscape for the development of new vaccine tools against helminthiases as well as immunotherapy.
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Affiliation(s)
- Christian M Sánchez-López
- Àrea de Parasitologia, Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Av. V.A. Estellés, s/n, 46100, Burjassot, Valencia, Spain; Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026 Valencia, Spain
| | - María Trelis
- Àrea de Parasitologia, Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Av. V.A. Estellés, s/n, 46100, Burjassot, Valencia, Spain; Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026 Valencia, Spain
| | - Dolores Bernal
- Departament de Bioquimica i Biologia Molecular, Facultat de Ciencies Biològiques, Universitat de València, C/ Dr. Moliner, 50, 46100 Burjassot, Valencia, Spain
| | - Antonio Marcilla
- Àrea de Parasitologia, Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Av. V.A. Estellés, s/n, 46100, Burjassot, Valencia, Spain; Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026 Valencia, Spain.
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48
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Avni D, Avni O. Extracellular Vesicles: Schistosomal Long-Range Precise Weapon to Manipulate the Immune Response. Front Cell Infect Microbiol 2021; 11:649480. [PMID: 33869080 PMCID: PMC8044974 DOI: 10.3389/fcimb.2021.649480] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/01/2021] [Indexed: 12/13/2022] Open
Abstract
Schistosomiasis (Bilharziasis), a neglected tropical disease that affects more than 240 million people around the world, is caused by infection with the helminth parasite Schistosoma. As part of their secretome, schistosomes release extracellular vesicles (EVs) that modulate the host immune response. The EV-harbored miRNAs upregulate the innate immune response of the M1 pathway and downregulate the differentiation toward the adaptive Th2 immunity. A schistosomal egg-derived miRNA increases the percentage of regulatory T cells. This schistosomal-inducible immunoediting process generates ultimately a parasitic friendly environment that is applied carefully as restrained Th2 response is crucial for the host survival and successful excretion of the eggs. Evidence indicates a selective targeting of schistosomal EVs, however, the underlying mechanisms are unclear yet. The effects of the schistosomes on the host immune system is in accordance with the hygiene hypothesis, attributing the dramatic increase in recent decades in allergy and other diseases associated with imbalanced immune response, to the reduced exposure to infectious agents that co-evolved with humans during evolution. Deciphering the bioactive cargo, function, and selective targeting of the parasite-secreted EVs may facilitate the development of novel tools for diagnostics and delivered therapy to schistosomiasis, as well as to immune-associated disorders.
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Affiliation(s)
- Dror Avni
- Laboratory of Molecular Cell Biology, Sheba Medical Center, Tel Hashomer, Israel.,Laboratory for the Study of Tropical Diseases, Sheba Medical Center, Tel Hashomer, Israel.,Department of Medicine C, Sheba Medical Center, Tel Hashomer, Israel
| | - Orly Avni
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
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The Benefits of Exporting: Engineered Extracellular Vesicles as Promising Vaccine Candidates against Enteric Fever. Infect Immun 2021; 89:IAI.00001-21. [PMID: 33468582 DOI: 10.1128/iai.00001-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The immunological potential of extracellular vesicles produced by Gram-negative bacteria, the so-called outer-membrane vesicles (OMVs), can be improved by genetic engineering, resulting in vesicles containing multiple immunogens. The potential of this approach for the development of a vaccine candidate for enteric fever was recently demonstrated by G. Gasperini, R. Alfini, V. Arato, F. Mancini, et al. (Infect Immun 89:e00699-20, 2021, https://doi.org/10.1128/IAI.00699-20). This commentary will discuss the use of OMVs to generate vaccines for enteric fever and the promise of this approach for prevention of other infectious diseases.
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50
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Mu Y, McManus DP, Hou N, Cai P. Schistosome Infection and Schistosome-Derived Products as Modulators for the Prevention and Alleviation of Immunological Disorders. Front Immunol 2021; 12:619776. [PMID: 33692793 PMCID: PMC7937812 DOI: 10.3389/fimmu.2021.619776] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/08/2021] [Indexed: 12/22/2022] Open
Abstract
Parasitic helminths, comprising the flatworms (tapeworms and flukes) and nematodes (roundworms), have plagued humans persistently over a considerable period of time. It is now known that the degree of exposure to these and other pathogens inversely correlates with the incidence of both T helper 1 (Th1)-mediated autoimmunity and Th2-mediated allergy. Accordingly, there has been recent increased interest in utilizing active helminth worm infections and helminth-derived products for the treatment of human autoimmune and inflammatory diseases and to alleviate disease severity. Indeed, there is an accumulating list of novel helminth derived molecules, including proteins, peptides, and microRNAs, that have been shown to exhibit therapeutic potential in a variety of disease models. Here we consider the blood-dwelling schistosome flukes, which have evolved subtle immune regulatory mechanisms that promote parasite survival but at the same time minimize host tissue immunopathology. We review and discuss the recent advances in using schistosome infection and schistosome-derived products as therapeutics to treat or mitigate human immune-related disorders, including allergic asthma, arthritis, colitis, diabetes, sepsis, cystitis, and cancer.
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Affiliation(s)
- Yi Mu
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Donald P McManus
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Nan Hou
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Pengfei Cai
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
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