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Han LL, Lu QQ, Li YL, Zheng WW, Ren P, Liu RD, Cui J, Wang ZQ. Application of a recombinant novel trypsin from Trichinella spiralis for serodiagnosis of trichinellosis. Parasit Vectors 2024; 17:9. [PMID: 38178167 PMCID: PMC10768479 DOI: 10.1186/s13071-023-06067-7] [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: 10/27/2023] [Accepted: 11/26/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND The excretory/secretory (ES) antigen of Trichinella spiralis muscle larvae (ML) is currently the most widely used diagnostic antigen to detect T. spiralis infection. However, this antigen has certain drawbacks, such as a complicated ES antigen preparation process and lower sensitivity during the early phase of infection. The aim of this study was to investigate the features of a novel T. spiralis trypsin (TsTryp) and evaluate its potential diagnostic value for trichinellosis. METHODS The TsTryp gene was cloned and recombinant TsTryp (rTsTryp) expressed. Western blotting and an enzyme-linked immunosorbent assay (ELISA) were performed to confirm the antigenicity of rTsTryp. The expression pattern and distribution signature of TsTryp at various life-cycle stages of T. spiralis were analyzed by quantitative PCR, western blotting and the immunofluorescence test. An ELISA with rTsTryp and ML ES antigens was used to detect immunoglobulins G and M (IgG, IgM) in serum samples of infected mice, swine and humans. The seropositive results were further confirmed by western blot with rTsTryp and ML ES antigens. RESULTS TsTryp expression was observed in diverse T. spiralis life-cycle phases, with particularly high expression in the early developmental phase (intestinal infectious larvae and adults), with distribution observed mainly at the nematode outer cuticle and stichosome. rTsTryp was identified by T. spiralis-infected mouse sera and anti-rTsTryp sera. Natural TsTryp protease was detected in somatic soluble and ES antigens of the nematode. In mice infected with 200 T. spiralis ML, serum-specific IgG was first detected by rTsTryp-ELISA at 8 days post-infection (dpi), reaching 100% positivity at 12 dpi, and first detected by ES-ELISA at 10 dpi, reaching 100% positivity at 14 dpi. Specific IgG was detected by rTsTryp 2 days earlier than by ES antigens. When specific IgG was determined in serum samples from trichinellosis patients, the sensitivity of rTsTryp-ELISA and ES antigens-ELISA was 98.1% (51/52 samples) and 94.2% (49/52 samples), respectively (P = 0.308), but the specificity of rTsTryp was significantly higher than that of ES antigens (98.7% vs. 95.4%; P = 0.030). Additionally, rTsTryp conferred a lower cross-reaction, with only three serum samples in total testing positive from 11 clonorchiasis, 20 cysticercosis and 24 echinococcosis patients (1 sample from each patient group). CONCLUSIONS TsTryp was shown to be an early and highly expressed antigen at intestinal T. spiralis stages, indicating that rTsTryp represents a valuable diagnostic antigen for the serodiagnosis of early Trichinella infection.
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Affiliation(s)
- Lu Lu Han
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China
| | - Qi Qi Lu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China
| | - Yang Li Li
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China
| | - Wen Wen Zheng
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China
| | - Pian Ren
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China
| | - Ruo Dan Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China.
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450001, China.
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Stachyra A, Wesołowska A. Immunomodulatory in vitro effects of Trichinella cystatin-like protein on mouse splenocytes. Exp Parasitol 2023; 252:108585. [PMID: 37437683 DOI: 10.1016/j.exppara.2023.108585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 06/27/2023] [Accepted: 07/10/2023] [Indexed: 07/14/2023]
Abstract
Trichinella parasites have developed specific mechanisms allowing successful completion of their life cycle. These mechanisms are in a great part involved in immunomodulation and studying them may provide a valuable insight into the functioning of the immune system. Trichinella products may be also used as potential therapeutic agents to treat immune diseases. This study investigates the immunomodulatory potential of recombinant multi cystatin-like protein (CLP) derived from T. britovi to determine whether CLP has anti-inflammatory properties in vitro. CLP is a highly antigenic glycoprotein present in Trichinella excetory-secretory (ES) products. AlphaFold structure prediction confirms that it consists of three type-two cystatin-like domains. Mouse splenocytes were stimulated in vitro with lipopolysaccharide (LPS) and co-stimulated with recombinant CLP. The culture supernatants were collected and tested for secreted cytokine levels using ELISA. CLP was found to reduce LPS-induced secretion of inflammatory cytokines TNFα and IL-6. On the contrary, in some experimental groups, co-stimulation with CLP resulted in increased secretion of the regulatory cytokine IL-10. The obtained results indicate that CLP has anti-inflammatory properties and future research on its function is advisable, specifically in the context of the therapy of inflammatory disorders.
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Affiliation(s)
- Anna Stachyra
- Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland; Department of General Biology and Parasitology, Medical University of Warsaw, Chałubińskiego 5, 02-004, Warsaw, Poland.
| | - Agnieszka Wesołowska
- Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland; Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, 00-679, Warsaw, Poland
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3
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Evaluation of indirect-ELISA using eluted antigens from Trichinella spiralis muscle larvae for diagnosis of swine trichinellosis. Acta Trop 2022; 235:106644. [DOI: 10.1016/j.actatropica.2022.106644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/19/2022]
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Lobanov VA, Konecsni KA, Purves RW, Scandrett WB. Performance of indirect enzyme-linked immunosorbent assay using Trichinella spiralis-derived Serpin as antigen for the detection of exposure to Trichinella spp. in swine. Vet Parasitol 2022; 309:109744. [PMID: 35777187 DOI: 10.1016/j.vetpar.2022.109744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/30/2022] [Accepted: 06/07/2022] [Indexed: 11/18/2022]
Abstract
Indirect enzyme-linked immunosorbent assay (ELISA) utilizing excretory-secretory (E-S) antigens of Trichinella spiralis is currently the method of choice for testing pigs and wild boars for exposure to Trichinella spp. The E-S proteins are released by first-stage larvae (L1) of this parasitic nematode maintained in vitro. However, the production of these antigens is cumbersome and time-consuming. The process requires animals to be experimentally infected with the parasite as the source of L1. Antigen production using recombinant technology would be more time- and cost-effective. In this study, we produced a Serpin of T. spiralis as a recombinant protein secreted by the yeast Pichia pastoris. The diagnostic performance of indirect ELISA with purified Serpin antigen was compared to that of E-S ELISA. Both Serpin ELISA and E-S ELISA demonstrated 98 % diagnostic specificity in testing 1056 pigs from the Canadian Trichinella-free commercial herd. Twenty of 21 pigs with non-negative test results in E-S ELISA tested negative by the confirmatory Western blot (WB) assay. Therefore, the diagnostic specificity of combined E-S ELISA and WB was 99.9 %. Forty-five sera collected at or after six weeks from 34 pigs experimentally infected with various numbers of T. spiralis L1 produced positive results in both E-S and Serpin ELISA, resulting in 100 % diagnostic sensitivity. However, testing of sera serially collected from four pigs experimentally infected with various low doses of T. spiralis L1 demonstrated a delayed Serpin-specific antibody response compared to seroconversion detected by E-S ELISA in three animals. Moreover, Serpin ELISA demonstrated significantly lower sensitivity for detecting antibodies induced by experimental infections of pigs with T. britovi, T. nativa, Trichinella T6 and T. pseudospiralis, suggesting that it will not provide consistent detection of exposure to sylvatic Trichinella spp. The validation data support the application of Serpin ELISA in seroepidemiological surveys for detecting exposure to T. spiralis in swine.
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Affiliation(s)
- Vladislav A Lobanov
- Center for Food-borne and Animal Parasitology, Canadian Food Inspection Agency, Saskatoon, Saskatchewan, Canada.
| | - Kelly A Konecsni
- Center for Food-borne and Animal Parasitology, Canadian Food Inspection Agency, Saskatoon, Saskatchewan, Canada
| | - Randy W Purves
- Center for Veterinary Drug Residues, Canadian Food Inspection Agency, Saskatoon, Saskatchewan, Canada
| | - W Brad Scandrett
- Center for Food-borne and Animal Parasitology, Canadian Food Inspection Agency, Saskatoon, Saskatchewan, Canada
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Bruschi F, Ashour D, Othman A. Trichinella-induced immunomodulation: Another tale of helminth success. Food Waterborne Parasitol 2022; 27:e00164. [PMID: 35615625 PMCID: PMC9125654 DOI: 10.1016/j.fawpar.2022.e00164] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 01/01/2023] Open
Abstract
Trichinella spiralis is a unique parasite in that both the adults and larvae survive in two different intracellular niches in the same host. The immune response, albeit intense, is highly modulated to ensure the survival of both the host and the parasite. It is skewed to T helper 2 and regulatory arms. Diverse cells from both the innate and adaptive compartments of immunity, including dendritic cells, T regulatory cells, and alternatively activated macrophages are thought to mediate such immunomodulation. The parasite has also an outstanding ability to evade the immune system by several elaborate processes. The molecules derived from the parasites including Trichinella, particularly the components of the excretory-secretory products, are being continually identified and explored for the potential of ameliorating the immunopathology in animal models of diverse inflammatory and autoimmune human diseases. Herein we discuss the various aspects of Trichinella-induced immunomodulation with a special reference to the practical implications of the immune system manipulation in alleviating or possibly curing human diseases.
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Key Words
- AAM, alternatively activated macrophage
- AW, adult worm
- Allergy
- Autoimmune diseases
- Breg, regulatory B cell
- CAM, classically activated macrophage
- Cancer
- ES L1, ES product of T. spiralis muscle larva
- ES, excretory–secretory
- IFN- γ, interferon-γ
- IIL, intestinal infective larva
- IL, interleukin
- Immune evasion
- Immunomodulation
- ML, muscle larva
- NBL, newborn larva
- NOS, nitric oxide synthase
- TGF-β, transforming growth factor-β
- TLR, toll-like receptor
- TNF- α, tumor necrosis factor-α
- Th, T helper
- Tol-DC, tolerogenic dendritic cell
- Treg, regulatory T cell
- Trichinella
- Trichinella-derived molecules
- Ts-AES, ES from adult T. spiralis
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Affiliation(s)
- F. Bruschi
- School of Medicine, Department of Translational Research, N.T.M.S., Università di Pisa, Pisa, Italy
| | - D.S. Ashour
- Department of Medical Parasitology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - A.A. Othman
- Department of Medical Parasitology, Faculty of Medicine, Tanta University, Tanta, Egypt
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Thawornkuno C, Nogrado K, Adisakwattana P, Thiangtrongjit T, Reamtong O. Identification and profiling of Trichinella spiralis circulating antigens and proteins in sera of mice with trichinellosis. PLoS One 2022; 17:e0265013. [PMID: 35271623 PMCID: PMC8912135 DOI: 10.1371/journal.pone.0265013] [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: 10/27/2021] [Accepted: 02/20/2022] [Indexed: 12/04/2022] Open
Abstract
Trichinellosis is a zoonotic disease caused by the ingestion of the Trichinella nematode. With a worldwide incidence of approximately 10,000 cases per year, Trichinella spiralis is responsible for most human infections. There are no specific signs or symptoms of this parasitic infection. Muscle biopsy is the gold diagnostic standard for trichinellosis, but the technique is invasive and unable to detect the early stage of infection. Although immunodiagnostics are also available, antibody detection usually occurs after 3 weeks and prolonged up to 19 years after the acute phase. Therefore, additional diagnostic biomarkers must be identified to improve trichinellosis diagnosis. This study aimed to measure concentration changes in mouse serum proteins prior to T. spiralis infection and 2, 4 and 8 weeks after infection, and to identify T. spiralis circulating proteins and antigens using mass spectrometry-based proteomics. Mouse muscle-related proteins including inter-alpha-trypsin inhibitor heavy chain H2, a protein involved in the response to muscle tissue damage, were up-regulated in mouse sera during the T. spiralis larvae invasion. Additionally, 33 circulatory parasite proteins were identified in infected mouse sera. Notably, T. spiralis long-chain fatty acid transport protein 1 could be detected in the early stage of infection and peroxidasin-like protein was identified 2, 4 and 8 weeks after infection. Seventeen T. spiralis circulating antigens were detected in mouse immune complexes, with PX domain protein being found 2, 4 and 8 weeks after infection. Because peroxidasin-like protein and PX domain protein were detected at all post-infection time points, sequence alignments of these proteins were performed, which showed they are conserved among Trichinella spp. and have less similarity to the human and murine sequences. Integrative analysis of T. spiralis biomarkers throughout the course of infection may reveal additional diagnostic targets to improve early diagnosis of trichinellosis.
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Affiliation(s)
- Charin Thawornkuno
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kathyleen Nogrado
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Poom Adisakwattana
- Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Tipparat Thiangtrongjit
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Onrapak Reamtong
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- * E-mail:
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7
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Chaudhury A. Trichinellosis. TEXTBOOK OF PARASITIC ZOONOSES 2022:415-426. [DOI: 10.1007/978-981-16-7204-0_40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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8
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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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9
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Wang D, Liu Q, Jiang YL, Huang HB, Li JY, Pan TX, Wang N, Yang WT, Cao X, Zeng Y, Shi CW, Wang JZ, Yang GL, Zhao Q, Wang CF. Oral immunization with recombinant Lactobacillus plantarum expressing Nudix hydrolase and 43 kDa proteins confers protection against Trichinella spiralis in BALB/c mice. Acta Trop 2021; 220:105947. [PMID: 33971160 DOI: 10.1016/j.actatropica.2021.105947] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 04/01/2021] [Accepted: 04/29/2021] [Indexed: 11/22/2022]
Abstract
Trichinellosis is a significant food-borne zoonotic parasitic disease caused by parasite Trichinella. Given the side effects of anti-Trichinella drugs (e.g., Mebendazole) aroused in the course of treatments, an effective vaccine against the parasite is called for. The therapies available to date are in most instances targeting a single stage of Trichinella, resulting in an incomplete protective immunity against the parasite in terms of the complexity of its developmental stages. In this study, a recombinant dual-expression double anchor vector NC8-pLp-TsNd-S-pgsA'-gp43 was constructed carrying two antigen genes from Trichinella spiralis (T. spiralis), encoding the gp43 and T. spiralis Nudix hydrolase (TsNd) proteins which were mainly expressed in muscle larva (ML) and intestinal infective larva stages of the parasite respectively. These two proteins were to be expressed by Lactobacillus plantarum NC8 (L. plantarum NC8) which was designed to express the two anchored peptides, a truncated poly-γ-glutamic acid synthetase A (pgsA') and the surface layer protein of Lactobacillus acidophilus (SlpA), on its surface for attaching expressed foreign proteins. Oral immunization with the above recombinant vaccine induced higher levels of specific serum IgG and mucosal secretory IgA (SIgA) in BALB/c mice. In addition, cytokines, interferon-γ (IFN- γ), interleukin-4 (IL-4) and IL-17 released by lymphocytes, and CD4+ levels displayed on the surfaces of splenic and mesenteric lymph cells were significantly enhanced by the vaccination. Moreover, after larval challenges, a 75.67 % reduction of adult worms (AW) at 7 days post-infection (dpi) and 57.14 % reduction of ML at 42 dpi were observed in mice immunized with the recombinant vaccine. Furthermore, this oral vaccination reduced the counts of encysted larvae presented in tongue and masseter muscles after infected with T. spiralis in mice. The overall results demonstrated that the recombinant vaccine developed in this study could induce specific humoral, mucosal, and cellular immune responses, and provides protections against different stages (adult worms and muscle larva) of T. spiralis infections in BALB/c mice, which could make it a promising oral vaccine candidate against trichinellosis.
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Affiliation(s)
- Dan Wang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Qiong Liu
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; College of Food Engineering, Jilin Engineering Normal University, Changchun, Jilin 130052, China
| | - Yan-Long Jiang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Hai-Bin Huang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Jun-Yi Li
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Tian-Xu Pan
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Nan Wang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Wen-Tao Yang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Xin Cao
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Yan Zeng
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Chun-Wei Shi
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Jian-Zhong Wang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China
| | - Gui-Lian Yang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China.
| | - Quan Zhao
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China.
| | - Chun-Feng Wang
- College of Veterinary Medicine, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China; Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun, Jilin Province 130118, China.
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10
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Applied Proteomics in 'One Health'. Proteomes 2021; 9:proteomes9030031. [PMID: 34208880 PMCID: PMC8293331 DOI: 10.3390/proteomes9030031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 12/19/2022] Open
Abstract
‘One Health’ summarises the idea that human health and animal health are interdependent and bound to the health of ecosystems. The purpose of proteomics methodologies and studies is to determine proteins present in samples of interest and to quantify changes in protein expression during pathological conditions. The objectives of this paper are to review the application of proteomics technologies within the One Health concept and to appraise their role in the elucidation of diseases and situations relevant to One Health. The paper develops in three sections. Proteomics Applications in Zoonotic Infections part discusses proteomics applications in zoonotic infections and explores the use of proteomics for studying pathogenetic pathways, transmission dynamics, diagnostic biomarkers and novel vaccines in prion, viral, bacterial, protozoan and metazoan zoonotic infections. Proteomics Applications in Antibiotic Resistance part discusses proteomics applications in mechanisms of resistance development and discovery of novel treatments for antibiotic resistance. Proteomics Applications in Food Safety part discusses the detection of allergens, exposure of adulteration, identification of pathogens and toxins, study of product traits and characterisation of proteins in food safety. Sensitive analysis of proteins, including low-abundant ones in complex biological samples, will be achieved in the future, thus enabling implementation of targeted proteomics in clinical settings, shedding light on biomarker research and promoting the One Health concept.
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Soleymani N, Grunberger RB, Abnous K, Borji H, Vahdati F. Identification and Immunological Characterization of Somatic Proteins from Adults of Toxocara cati by Proteomics Technique. IRANIAN JOURNAL OF PARASITOLOGY 2021; 16:23-31. [PMID: 33786044 PMCID: PMC7988680 DOI: 10.18502/ijpa.v16i1.5508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Background: Toxocara cati is considered as one of the main etiological agents of toxocariasis with global and regional importance. As there is no information on proteomics of T. cati, herein, we reported the results obtained by proteomic analysis of somatic proteins extract, using a mass spectrometry (LC–MS/MS) approach. Methods: Somatic extract fractions were separated by two-dimensional SDS-PAGE and were electro blotted on to PVDF membranes for immunoblot analysis, then collected the immunogenic spots which response of antibodies of the paratenic hosts (mice) to the antigens (Mashhad, 2017), and analyzed by LC–MS/MS. The LC-MS/MS data were analyzed by Mascot database, Taxonomy Toxocara, and common contaminants, in Omics Center, Biotechnology Medical University of Graz (Austria, 2018). Result: The protein spots were isolated between 15–140 kDa ranges using 3–10 non-linear IPG strips and Brilliant Blue Coomassie. Ten proteins were characterized as immunogenic proteins, seven of them were identified and three of them were unknown proteins. Conclusion: This study provided additional information about the somatic antigens of T. cati, which can lead to the development of new strategies for novel immuno-modulators, drug targets, subunit vaccines and immunodiagnostic kits for toxocariasis.
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Affiliation(s)
- Nooshinmehr Soleymani
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ruth Birner Grunberger
- Austrian Center of Industrial Biotechnology, Graz, Austria.,Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria.,Omics Center Graz, Bio Tech Med-Graz, Graz, Austria.,Institute of Chemical Technologies and Analytics, Vienna, Austria
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hassan Borji
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Faezeh Vahdati
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Srey MT, Taccogna A, Oksov Y, Lustigman S, Tai PY, Acord J, Selkirk ME, Lamb TJ, Guiliano DB. Vaccination with novel low-molecular weight proteins secreted from Trichinella spiralis inhibits establishment of infection. PLoS Negl Trop Dis 2020; 14:e0008842. [PMID: 33206649 PMCID: PMC7673540 DOI: 10.1371/journal.pntd.0008842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 09/14/2020] [Indexed: 11/19/2022] Open
Abstract
Trichinella spiralis muscle stage larvae (mL1) produce excretory-secreted products (ESPs), a complex mixture of protein, which are believed to be important for establishing or maintaining an infection niche within skeletal muscle and the intestine. Studies of both whole ESPs and individual cloned proteins have shown that some ESPs are potent immunogens capable of eliciting protective immune responses. Here we describe two novel proteins, Secreted from Muscle stage Larvae SML-4 and SML-5 which are 15 kDa and 12 kDa respectively. The genes encoding these proteins are highly conserved within the Trichinellids, are constituents of mL1 ESP and localized in the parasite stichosome. While SML-5 is only expressed in mL1 and early stages of adult nematode development, SML-4 is a tyvosylated glycoprotein also produced by adult nematodes, indicating it may have a function in the enteral phase of the infection. Vaccination with these proteins resulted in an impaired establishment of adult stages and consequently a reduction in the burden of mL1 in BALB/c mice. This suggests that both proteins may be important for establishment of parasite infection of the intestine and are prophylactic vaccine candidates.
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Affiliation(s)
- Mellina T. Srey
- Department of Pathology, University of Utah, Salt Lake City, Utah, United States of America
| | - Alessia Taccogna
- School of Health, Sport and Bioscience, University of East London, London, United Kingdom
| | - Yelena Oksov
- Laboratory of Electron Microscopy, Lindsley F. Kimball Research Institute, New York Blood Center, New York, New York, United States of America
| | - Sara Lustigman
- Laboratory of Molecular Parasitology, Lindsley F. Kimball Research Institute, New York Blood Center, New York, New York, United States of America
| | - Pei-Yi Tai
- Department of Pathology, University of Utah, Salt Lake City, Utah, United States of America
| | - John Acord
- Cambridge Healthcare Research, London, United Kingdom
| | - Murray E. Selkirk
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Tracey J. Lamb
- Department of Pathology, University of Utah, Salt Lake City, Utah, United States of America
| | - David B. Guiliano
- School of Health, Sport and Bioscience, University of East London, London, United Kingdom
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Zarlenga D, Thompson P, Pozio E. Trichinella species and genotypes. Res Vet Sci 2020; 133:289-296. [PMID: 33199264 DOI: 10.1016/j.rvsc.2020.08.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
Trichinella spiralis has historically been deemed "the pig parasite" owing to its initial classification within a monospecific genus. However, in recent years, the genus has expanded to include 10 distinct species and at least 3 different genotypes whose taxonomic status remains unstipulated. In contrast to T. spiralis, however, most of these sylvatic species and genotypes do not infect pigs well. Inasmuch as morphological characters cannot be used to define species within this genus, earlier classifications were based upon host and geographical ranges, biological characters, and the presence or absence of a collagen capsule that surrounds the muscle stage larvae. Later, isoenzymes, DNA gel fragmentation patterns and DNA probes were used to help in identification and classification. Today, amidst the "-omics" revolution, new molecular and biochemical-based methodologies have improved detection, differentiation and characterization at all levels including worm populations. These efforts have discernably expanded immunological, epidemiological, and genetic studies resulting in better hypotheses on the evolution of the genus, and on global events, transmission cycles, host associations, and biogeographical histories that contributed to its cosmopolitan distribution. Reviews of this sort are best begun with a background on the genus; however, efforts will divert to the most recent knowledge available on the taxonomy, phylogeny, epidemiology and biochemistry that define this genus in the 21st century.
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Affiliation(s)
- Dante Zarlenga
- Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705, USA.
| | - Peter Thompson
- Agricultural Research Service, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705, USA
| | - Edoardo Pozio
- Department of Infectious Diseases, Istituto Superiore di Sanita, Viale Regina Elena 299, 00161 Rome, Italy
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Soleyman NM, Darnhofer B, Gruenberger RB, Abnous K, Borji H. Proteomic analysis of soluble protein extract of adult Toxocara cati. Comp Immunol Microbiol Infect Dis 2020; 73:101528. [PMID: 32911377 DOI: 10.1016/j.cimid.2020.101528] [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: 02/19/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 10/23/2022]
Abstract
Toxocara cati is a cat roundworm and the causative agent of toxocariasis as a cosmopolitan zoonotic disease. As no information has been reported so far, identification of T. cati proteins can be useful for the development of new diagnostic strategies. This study was conducted to identify the major proteins in the adult T. cati tegument using bi-dimensional electrophoresis (2-DE) and shotgun proteomics. A total proteins were identified, among them the metabolic enzymes were the largest group, including: Enolase, triose phosphate isomerase, fructose-bisphosphate aldolase, aldehyde dehydrogenase. The other important protein groups recognized in T. cati, belong to the HSP-family, the structure and motor proteins, such as actin. The role of these proteins have been implicated in parasite-host interactions and modulating cellular immune response, immune regulation in evasion mechanisms of the host immune response. Characterizing T. cati adult proteins play a key role not only in host-parasite interactions, but also in the discovery of drug targets, subunit vaccines against toxocariasis, immunodiagnostic kits for toxocariasis and the identification of novel immuno-modulators that can form the next generation of therapeutic possibilities for inflammatory diseases.
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Affiliation(s)
- Nooshin Mehra Soleyman
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Iran
| | | | - Ruth Birner Gruenberger
- Austrian Center of Industrial Biotechnology, Graz, Austria; Diagnostic and Research Institute of Pathology, Medical University of Graz, Austria; Omics Center Graz, BioTechMed-Graz, Graz, Austria; Institute of Chemical Technologies and Analytics, Vienna, Austria
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Hassan Borji
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Iran.
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Xu J, Wu L, Sun Y, Wei Y, Zheng L, Zhang J, Pang Z, Yang Y, Lu Y. Proteomics and bioinformatics analysis of Fasciola hepatica somatic proteome in different growth phases. Parasitol Res 2020; 119:2837-2850. [PMID: 32757109 PMCID: PMC7403185 DOI: 10.1007/s00436-020-06833-x] [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: 03/12/2020] [Accepted: 07/26/2020] [Indexed: 11/30/2022]
Abstract
Fasciola hepatica (F. hepatica) is a well-known zoonotic parasite that is crucial for economic and public health worldwide. Quantitative proteomics studies have been performed on proteins expressed by F. hepatica to investigate the differential expression of proteomes in different growth phases. And the screening of several marker proteins for use as early diagnostic antigens is essential. In this study, high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) was conducted to analyze the differences in the expression of F. hepatica somatic proteins in different growth phases. Furthermore, gene ontology (GO) functional annotation, KEGG metabolic pathway, and clustering analyses were also performed. LC-MS/MS identified 629, 2286, 2254, and 2192 proteins in metacercariae, juvenile flukes 28dpi, immature flukes 59dpi, and adult phases, respectively. GO analysis revealed that differentially expressed proteins (DEPs) were mainly involved in transport, localization, metabolism, enzyme regulation, protein folding and binding, and nucleoside and nucleotide binding. The DEPs were enriched in cells, intracellular components, organelles, cytoplasm, vesicles, and membranes. KEGG pathway annotation results showed that the DEPs were involved in metabolism, genetic information processing, environmental information processing, cellular processes, organismal systems, and other processes. These findings provide a theoretical basis for vaccine development and establishing early diagnostic methods in the future.
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Affiliation(s)
- Jingyun Xu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Lijia Wu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Yichun Sun
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Yating Wei
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Lushan Zheng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Jinpeng Zhang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Zixuan Pang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Ying Yang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China
| | - Yixin Lu
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Street, Harbin, 150030, China.
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Liu Y, Liu X, Li Y, Xu N, Yang Y, Liu M, Zhou Y. Evaluation of a cystatin-like protein of Trichinella spiralis for serodiagnosis and identification of immunodominant epitopes using monoclonal antibodies. Vet Parasitol 2020; 297:109127. [PMID: 32439275 DOI: 10.1016/j.vetpar.2020.109127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 12/31/2022]
Abstract
An antigenic cystatin-like protein (Ts-CLP) selected from cDNA library of intestinal infective larvae at 6 h post-infection, was expressed by prokaryotes in the form of a histidine-tagged protein (rTs-CLP). The fusion protein was purified by an on-column refolding procedure using Ni-NTA affinity chromatography. An indirect rTs-CLP ELISA was developed using 270 known negative serum samples from commercial swine maintained under non-special pathogen free conditions. Based on the distribution of the signal-to-positive (S/P) ratio, a cut-off value was set at 0.30. Using this cut-off value, rTs-CLP ELISA was evaluated using sera from swine experimentally infected with 1000 and 50,000 muscle larvae of Trichinella spiralis. Specific IgG antibodies were detectable by rTs-CLP ELISA as soon as 17 days post-infection (dpi), but the commercial ELISA kit based on excretory-secretory (ES) antigens did not permit detection before 21 dpi. Three monoclonal antibodies (McAbs) against Ts-CLP (designated 1H9, 6B5 and 7F8) were obtained by screening with both rTs-CLP ELISA and ES ELISA methods. Two dominant epitopes recognized by McAbs were determined by analysis with overlapping fusion peptides and synthetic peptides. One epitope 39 HEALFSSDLKQESGV 53 was recognized by 1H9 and 6B5, and the other epitope 178 REALFSSDSKEQSGV 192 was recognized by 7F8. The generation of McAbs against Ts-CLP and the characterization of the two dominant epitopes provide a foundation for the development of a specific early serodiagnostic strategy for T. spiralis infection.
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Affiliation(s)
- Yan Liu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xiaolei Liu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yansong Li
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Ning Xu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yuying Yang
- College of Animal Sciences, Yangtze University, Jingzhou, China
| | - Mingyuan Liu
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China.
| | - Yu Zhou
- Key Laboratory of Zoonoses Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China; College of Animal Sciences, Yangtze University, Jingzhou, China.
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Stachyra A, Zawistowska-Deniziak A, Basałaj K, Grzelak S, Gondek M, Bień-Kalinowska J. The Immunological Properties of Recombinant Multi-Cystatin-Like Domain Protein From Trichinella Britovi Produced in Yeast. Front Immunol 2019; 10:2420. [PMID: 31681308 PMCID: PMC6797592 DOI: 10.3389/fimmu.2019.02420] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/27/2019] [Indexed: 12/29/2022] Open
Abstract
Trichinellosis is a globally-distributed zoonotic parasitic disease caused by nematode worms of the genus Trichinella. One of the most common species of Trichinella known to affect human health is T. britovi; however, it is relatively poorly investigated. A thorough knowledge of the proteins expressed by Trichinella is important when developing immunological detection methods and vaccines and studying its interactions with the host. The present study uses the Pichia pastoris expression system to produce a soluble TbCLP antigen which induces strong antibody responses in the host during natural infection. Our results demonstrate the feasibility of TbCLP antigen production in yeasts, which are able to carry out post-translational modifications such as glycosylation and disulfide bond formation; they also indicate that the glycosylated TbCLP antigen had immunogenic effects in the tested mice and induced a mixed Th1/Th2 response, and was associated with a reduced larval burden after challenge with T. britovi. Subsequent in vitro stimulation of mice splenocytes revealed that TbCLP most likely possesses immunomodulatory properties and may play a significant role in the early phase of infection, affecting host immunological responses.
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Affiliation(s)
- Anna Stachyra
- Witold Stefanski Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
| | | | - Katarzyna Basałaj
- Witold Stefanski Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
| | - Sylwia Grzelak
- Witold Stefanski Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
| | - Michał Gondek
- Department of Food Hygiene of Animal Origin, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland
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Song P, Kwon Y, Joo JY, Kim DG, Yoon JH. Secretomics to Discover Regulators in Diseases. Int J Mol Sci 2019; 20:ijms20163893. [PMID: 31405033 PMCID: PMC6720857 DOI: 10.3390/ijms20163893] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/01/2019] [Accepted: 08/08/2019] [Indexed: 01/03/2023] Open
Abstract
Secretory proteins play important roles in the cross-talk of individual functional units, including cells. Since secretory proteins are essential for signal transduction, they are closely related with disease development, including metabolic and neural diseases. In metabolic diseases, adipokines, myokines, and hepatokines are secreted from respective organs under specific environmental conditions, and play roles in glucose homeostasis, angiogenesis, and inflammation. In neural diseases, astrocytes and microglia cells secrete cytokines and chemokines that play roles in neurotoxic and neuroprotective responses. Mass spectrometry-based secretome profiling is a powerful strategy to identify and characterize secretory proteins. This strategy involves stepwise processes such as the collection of conditioned medium (CM) containing secretome proteins and concentration of the CM, peptide preparation, mass analysis, database search, and filtering of secretory proteins; each step requires certain conditions to obtain reliable results. Proteomic analysis of extracellular vesicles has become a new research focus for understanding the additional extracellular functions of intracellular proteins. Here, we provide a review of the insights obtained from secretome analyses with regard to disease mechanisms, and highlight the future prospects of this technology. Continued research in this field is expected to provide valuable information on cell-to-cell communication and uncover new pathological mechanisms.
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Affiliation(s)
- Parkyong Song
- Department of Convergence Medicine, Pusan National University School of Medicine, Yangsan 50612, Korea
| | - Yonghoon Kwon
- Department of Life Sciences, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Jae-Yeol Joo
- Neurodegenerative Disease Research Group, Korea Brain Research Institute, Daegu 41062, Korea
| | - Do-Geun Kim
- Dementia Research Group, Korea Brain Research Institute, Daegu 41062, Korea
| | - Jong Hyuk Yoon
- Neurodegenerative Disease Research Group, Korea Brain Research Institute, Daegu 41062, Korea.
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MALDI-TOF mass spectrometry as a diagnostic tool in human and veterinary helminthology: a systematic review. Parasit Vectors 2019; 12:245. [PMID: 31101120 PMCID: PMC6525464 DOI: 10.1186/s13071-019-3493-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/06/2019] [Indexed: 11/24/2022] Open
Abstract
Background Matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry (MS) has become a widely used technique for the rapid and accurate identification of bacteria, mycobacteria and certain fungal pathogens in the clinical microbiology laboratory. Thus far, only few attempts have been made to apply the technique in clinical parasitology, particularly regarding helminth identification. Methods We systematically reviewed the scientific literature on studies pertaining to MALDI-TOF MS as a diagnostic technique for helminths (cestodes, nematodes and trematodes) of medical and veterinary importance. Readily available electronic databases (i.e. PubMed/MEDLINE, ScienceDirect, Cochrane Library, Web of Science and Google Scholar) were searched from inception to 10 October 2018, without restriction on year of publication or language. The titles and abstracts of studies were screened for eligibility by two independent reviewers. Relevant articles were read in full and included in the systematic review. Results A total of 84 peer-reviewed articles were considered for the final analysis. Most papers reported on the application of MALDI-TOF for the study of Caenorhabditis elegans, and the technique was primarily used for identification of specific proteins rather than entire pathogens. Since 2015, a small number of studies documented the successful use of MALDI-TOF MS for species-specific identification of nematodes of human and veterinary importance, such as Trichinella spp. and Dirofilaria spp. However, the quality of available data and the number of examined helminth samples was low. Conclusions Data on the use of MALDI-TOF MS for the diagnosis of helminths are scarce, but recent evidence suggests a potential role for a reliable identification of nematodes. Future research should explore the diagnostic accuracy of MALDI-TOF MS for identification of (i) adult helminths, larvae and eggs shed in faecal samples; and (ii) helminth-related proteins that are detectable in serum or body fluids of infected individuals. Electronic supplementary material The online version of this article (10.1186/s13071-019-3493-9) contains supplementary material, which is available to authorized users.
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Grzelak S, Moskwa B, Bień J. Trichinella britovi muscle larvae and adult worms: stage-specific and common antigens detected by two-dimensional gel electrophoresis-based immunoblotting. Parasit Vectors 2018; 11:584. [PMID: 30419953 PMCID: PMC6233509 DOI: 10.1186/s13071-018-3177-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/28/2018] [Indexed: 02/08/2023] Open
Abstract
Background Trichinella britovi is the second most common species of Trichinella that may affect human health. As an early diagnosis of trichinellosis is crucial for effective treatment, it is important to identify sensitive, specific and common antigens of adult T. britovi worms and muscle larvae. The present study was undertaken to uncover the stage-specific and common proteins of T. britovi that may be used in specific diagnostics. Methods Somatic extracts obtained from two developmental stages, muscle larvae (ML) and adult worms (Ad), were separated using two-dimensional gel electrophoresis (2-DE) coupled with immunoblot analysis. The positively-visualized protein spots specific for each stage were identified through liquid chromatography-tandem mass spectrometry (LC-LC/MS). Results A total of 272 spots were detected in the proteome of T. britovi adult worms (Ad) and 261 in the muscle larvae (ML). The somatic extracts from Ad and ML were specifically recognized by T. britovi-infected swine sera at 10 days post infection (dpi) and 60 dpi, with a total of 70 prominent protein spots. According to immunoblotting patterns and LC-MS/MS results, the immunogenic spots recognized by different pig T. britovi-infected sera were divided into three groups for the two developmental stages: adult stage-specific proteins, muscle larvae stage-specific proteins, and proteins common to both stages. Forty-five Ad proteins (29 Ad-specific and 16 common) and thirteen ML proteins (nine ML-specific and four common) cross-reacted with sera at 10 dpi. Many of the proteins identified in Ad (myosin-4, myosin light chain kinase, paramyosin, intermediate filament protein B, actin-depolymerizing factor 1 and calreticulin) are involved in structural and motor activity. Among the most abundant proteins identified in ML were 14-3-3 protein zeta, actin-5C, ATP synthase subunit d, deoxyribonuclease-2-alpha, poly-cysteine and histide-tailed protein, enolase, V-type proton ATPase catalytic and serine protease 30. Heat-shock protein, intermediate filament protein ifa-1 and intermediate filament protein B were identified in both proteomes. Conclusions To our knowledge, this study represents the first immunoproteomic identification of the antigenic proteins of adult worms and muscle larvae of T. britovi. Our results provide a valuable basis for the development of diagnostic methods. The identification of common components for the two developmental stages of T. britovi may be useful in the preparation of parasitic antigens in recombinant forms for diagnostic use.
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Affiliation(s)
- Sylwia Grzelak
- Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland
| | - Bożena Moskwa
- Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland
| | - Justyna Bień
- Witold Stefański Institute of Parasitology, Polish Academy of Sciences, Twarda 51/55, 00-818, Warsaw, Poland.
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Li JF, Guo KX, Qi X, Lei JJ, Han Y, Yan SW, Jiang P, Yu C, Cheng XC, Wang ZQ, Cui J. Protective immunity against Trichinella spiralis in mice elicited by oral vaccination with attenuated Salmonella-delivered TsSP1.2 DNA. Vet Res 2018; 49:87. [PMID: 30189894 PMCID: PMC6127904 DOI: 10.1186/s13567-018-0582-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022] Open
Abstract
Trichinellosis is a worldwide important food-borne zoonosis caused mainly by ingesting raw or undercooked pork infected with Trichinella spiralis larvae. The development of vaccine is needed for preventing swine from Trichinella infection to ensure pork safety. Previous studies showed that T. spiralis serine protease 1.2 (TsSP1.2) is a vaccine candidate against Trichinella infection. In this study, the complete TsSP1.2 cDNA sequences were cloned into pcDNA3.1, and the rTsSP1.2 DNA was transformed into attenuated Salmonella typhimurium strain ΔcyaSL1344. Oral vaccination of mice with Salmonella-delivered rTsSP1.2 DNA vaccine induced an obvious intestinal mucosal IgA response and a systemic Th1/Th2 immune response; the vaccinated mice showed a 33.45% reduction of intestinal adult worms and 71.84% reduction of muscle larvae after T. spiralis larval challenge. The protection might be due to the rTsSP1.2-induced production of specific anti-TsSP1.2 sIgA, IgG, IgG1/IgG2a, and secretion of IFN-γ, IL-4 and IL-10, which protected intestinal mucosa from the parasite invasion, inhibited worm development and reduced female fecundity. The results indicate that the attenuated Salmonella-delivered rTsSP1.2 DNA vaccine offers a prospective strategy for the prevention and control of animal Trichinella infection.
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Affiliation(s)
- Jie Feng Li
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Kai Xia Guo
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Xin Qi
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Jun Jun Lei
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Yue Han
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Shu Wei Yan
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Peng Jiang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Chuan Yu
- Key Lab of Animal Disease and Public Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471003, China
| | - Xiang Chao Cheng
- Key Lab of Animal Disease and Public Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471003, China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China.
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China.
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Sun GG, Ren HN, Liu RD, Song YY, Qi X, Hu CX, Yang F, Jiang P, Zhang X, Wang ZQ, Cui J. Molecular characterization of a putative serine protease from Trichinella spiralis and its elicited immune protection. Vet Res 2018; 49:59. [PMID: 30001738 PMCID: PMC6043985 DOI: 10.1186/s13567-018-0555-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/08/2018] [Indexed: 01/25/2023] Open
Abstract
In our previous work, a Trichinella spiralis putative serine protease (TsSP) was identified from ES products of T. spiralis intestinal infective larvae (IIL) and adult worms (AW) by immunoproteomics: it was highly expressed in IIL compared with muscle larvae (ML). In this study, the TsSP biological characteristics in larval invasion and growth were identified and its potential as a vaccine target against Trichinella infection were investigated. Expression of TsSP at various developmental phases (newborn larvae, ML, IIL, and AW) was detected by qPCR, immunofluorescent test and Western blotting. The rTsSP could specifically bind to the intestinal epithelial cell (IEC) membrane and enter into the cytoplasm. Anti-rTsSP serum suppressed the larval invasion of enterocytes in a dose-dependent mode, and killed newborn and ML of T. spiralis, decreased larval infectivity and development in the host by an ADCC-mediated mechanism. Immunization of mice with rTsSP produced a Th2 predominant immune response, and resulted in a 52.70% reduction of adult worms at 5 days post-infection (dpi) and a 52.10% reduction of muscle larvae at 42 dpi. The results revealed there was an interaction between TsSP and the host’s IEC; TsSP might be a pivotal protein for the invading, growing and parasiting of this nematode in the host. Vaccination of mice with rTsSP elicited immune protection, and TsSP is a potential target molecule for vaccines against enteral Trichinella infection.
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Affiliation(s)
- Ge Ge Sun
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Hua Nan Ren
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Ruo Dan Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Yan Yan Song
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Xin Qi
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Chen Xi Hu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Fan Yang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Peng Jiang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Xi Zhang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China.
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, China.
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Proteomic analysis of the response of Trichinella spiralis muscle larvae to exogenous nitric oxide. PLoS One 2018; 13:e0198205. [PMID: 29870543 PMCID: PMC5988324 DOI: 10.1371/journal.pone.0198205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 05/15/2018] [Indexed: 12/11/2022] Open
Abstract
Trichinella spiralis mainly dwells in the muscle tissue of its host and is the main causative agent of trichinellosis in humans. Nitric oxide (NO), an important intracellular signaling molecule that may restrict pathogen growth in infected hosts, has been known for its anti-pathogenic activity, including resistance to T. spiralis. Herein, we applied label-free analysis to investigate the effect of sodium nitroprusside (SNP, a NO donor compound) on the proteome of T. spiralis muscle larvae (ML), followed by Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway cluster analyses. Of the 1,476 proteins detected in the ML, 121 proteins showed differential expression, including 50 significantly upregulated and 71 downregulated proteins. The functions of the 108 annotated proteins were primarily related to signal transduction, transcription/translation, material metabolism, protein synthesis/assembly/degradation, and stress/defense/antioxidation. Quantitative real-time polymerase chain reaction (qRT-PCR) assay verified that FRMD5 and CUT-1 gene expression levels were significantly increased, while COX2 gene expression level was significantly decreased. GO annotation and KEGG pathway analyses showed that the majority of differentially expressed proteins were mainly involved in the molecular function of the catalytic activity, biological process of the immune system process, metabolic process, cellular component organization, biological adhesion, and cellular component of the macromolecular complex. Our results demonstrate the first comprehensive protein expression profile of the ML in response to NO stress and provide novel references for understanding the potential mechanism underlying the effects of NO on trichinellosis.
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Sun GG, Song YY, Jiang P, Ren HN, Yan SW, Han Y, Liu RD, Zhang X, Wang ZQ, Cui J. Characterization of a Trichinella spiralis putative serine protease. Study of its potential as sero-diagnostic tool. PLoS Negl Trop Dis 2018; 12:e0006485. [PMID: 29758030 PMCID: PMC5967804 DOI: 10.1371/journal.pntd.0006485] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/24/2018] [Accepted: 05/01/2018] [Indexed: 12/12/2022] Open
Abstract
Background Trichinellosis is a serious zoonositc parasitosis worldwide. Because its clinical manifestations aren’t specific, the diagnosis of trichinellosis is not easy to be made. Trichinella spiralis muscle larva (ML) excretory–secretory (ES) antigens are the most widely applied diagnostic antigens for human trichinellosis, but the major drawback of the ES antigens for assaying anti-Trichinella antibodies is the false negative in the early Trichinella infection period. The aim of this study was to characterize the T. spiralis putative serine protease (TsSP) and to investigate its potential use for diagnosis of trichinellosis. Methodology/Principal findings The full-length TsSP sequence was cloned and expressed, and recombinant TsSP (rTsSP) was purified by Ni-NTA-Sefinose Column. On Western blotting analysis the rTsSP was recognized by T. spiralis-infected mouse serum, and the natural TsSP was identified in T. spiralis ML crude and ES antigens by using anti-rTsSP serum. Expression of TsSP was detected at various T. spiralis developmental stages (newborn larvae, muscle larvae, intestinal infective larvae and adult worms). Immunolocalization identified the TsSP principally in cuticles and stichosomes of the nematode. The sensitivity of rTsSP-ELISA and ES-ELISA was 98.11% (52/53) and 88.68% (47/53) respectively (P > 0.05) when the sera from trichinellosis patients were examined. However, while twenty-one serum samples of trichinellosis patients’ sera at 19 days post-infection (dpi) were tested, the sensitivity (95.24%) of rTsSP-ELISA was distinctly higher than 71.43% of ES-ELISA (P < 0.05). The specificity (99.53%) of rTsSP-ELISA was remarkably higher than 91.98% of ES-ELISA (P < 0.01). Only one out of 20 serum samples of cysticercosis patients cross-reacted with the rTsSP. Specific anti-Trichinella IgG in infected mice was first detected by rTsSP-ELISA as soon as 7 dpi and antibody positive rate reached 100% on 10 dpi, whereas the ES-ELISA did not permit detection of 100% of infected mice before 16 dpi. Conclusions The rTsSP is a potential early diagnostic antigen for human trichinellosis. Trichinellosis is an important parasitic zoonosis, and has a public health hazard and an economic impact on the safety of animal food. The diagnosis of trichinellosis is difficult and it is often misdiagnosed. There is an evident 2–3 week window stage between clinical manifestations and the anti-Trichinella IgG positive. Serine protease is a superfamily of proteolytic enzymes and exerts a major role in tissue invasion, larval development and survival of the parasites. A T. spiralis putative serine protease (TsSP) was characterized in ES proteins of T. spiralis intestinal infective larvae and adult worms by the immunoproteomics with early infection serum. In this study, the TsSP was expressed and purified. The results revealed that the TsSP was expressed at various T. spiralis stages (newborn larvae, muscle larvae, intestinal infective larvae and adult worms) and it was principally located in cuticle and stichosome of the nematode. The rTsSP was sensitive and specific for detection of anti-Trichinella IgG, and could be regarded as an early diagnostic marker of trichinellosis.
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Affiliation(s)
- Ge Ge Sun
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Yan Yan Song
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Peng Jiang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Hua Na Ren
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Shu Wei Yan
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Yue Han
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Ruo Dan Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Xi Zhang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
- * E-mail: (ZQW); (JC)
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, P. R. China
- * E-mail: (ZQW); (JC)
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25
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Stroehlein AJ, Young ND, Gasser RB. Advances in kinome research of parasitic worms - implications for fundamental research and applied biotechnological outcomes. Biotechnol Adv 2018; 36:915-934. [PMID: 29477756 DOI: 10.1016/j.biotechadv.2018.02.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/15/2018] [Accepted: 02/21/2018] [Indexed: 12/17/2022]
Abstract
Protein kinases are enzymes that play essential roles in the regulation of many cellular processes. Despite expansions in the fields of genomics, transcriptomics and bioinformatics, there is limited information on the kinase complements (kinomes) of most eukaryotic organisms, including parasitic worms that cause serious diseases of humans and animals. The biological uniqueness of these worms and the draft status of their genomes pose challenges for the identification and classification of protein kinases using established tools. In this article, we provide an account of kinase biology, the roles of kinases in diseases and their importance as drug targets, and drug discovery efforts in key socioeconomically important parasitic worms. In this context, we summarise methods and resources commonly used for the curation, identification, classification and functional annotation of protein kinase sequences from draft genomes; review recent advances made in the characterisation of the worm kinomes; and discuss the implications of these advances for investigating kinase signalling and developing small-molecule inhibitors as new anti-parasitic drugs.
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Affiliation(s)
- Andreas J Stroehlein
- Melbourne Veterinary School, Department of Veterinary Biosciences, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Neil D Young
- Melbourne Veterinary School, Department of Veterinary Biosciences, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Robin B Gasser
- Melbourne Veterinary School, Department of Veterinary Biosciences, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia.
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26
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Gahoi S, Singh S, Gautam B. Genome-wide identification and comprehensive analysis of Excretory/Secretory proteins in nematodes provide potential drug targets for parasite control. Genomics 2018. [PMID: 29522800 DOI: 10.1016/j.ygeno.2018.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Nematodes are responsible for causing severe diseases in plants, humans and other animals. Infection is associated with the release of Excretory/Secretory (ES) proteins into host cytoplasm and interference with the host immune system which make them attractive targets for therapeutic use. The identification of ES proteins through bioinformatics approaches is cost- and time-effective and could be used for screening of potential targets for parasitic diseases for further experimental studies. Here, we identified and functionally annotated 93,949 ES proteins, in the genome of 73 nematodes using integration of various bioinformatics tools. 30.6% of ES proteins were found to be supported at RNA level. The predicted ES proteins, annotated by Gene Ontology terms, domains, metabolic pathways, proteases and enzyme class analysis were enriched in molecular functions of proteases, protease inhibitors, c-type lectin and hydrolases which are strongly associated with typical functions of ES proteins. We identified a total of 452 ES proteins from human and plant parasitic nematodes, homologues to DrugBank-approved targets and C. elegans RNA interference phenotype genes which could represent potential targets for parasite control and provide valuable resource for further experimental studies to understand host-pathogen interactions.
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Affiliation(s)
- Shachi Gahoi
- Department of Computational Biology and Bioinformatics, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 211007, India.
| | - Satendra Singh
- Department of Computational Biology and Bioinformatics, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 211007, India.
| | - Budhayash Gautam
- Department of Computational Biology and Bioinformatics, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 211007, India.
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27
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Hernández-Ancheyta L, Salinas-Tobón MDR, Cifuentes-Goches JC, Hernández-Sánchez J. Trichinella spiralis muscle larvae excretory-secretory products induce changes in cytoskeletal and myogenic transcription factors in primary myoblast cultures. Int J Parasitol 2017; 48:275-285. [PMID: 29258830 DOI: 10.1016/j.ijpara.2017.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 01/04/2023]
Abstract
Trichinella spiralis infection in skeletal muscle culminates with nurse cell formation. The participation of excretory-secretory products of the muscle larvae has been implicated in this process through different studies performed in infected muscle and the muscle cell line C2C12. In this work, we developed primary myoblast cultures to analyse the changes induced by excretory-secretory products of the muscle larvae in muscle cells. Microarray analyses revealed expression changes in muscle cell differentiation, proliferation, cytoskeleton organisation, cell motion, transcription, cell cycle, apoptosis and signalling pathways such as MAPK, Jak-STAT, Wnt and PI3K-Akt. Some of these changes were further evaluated by other methodologies such as quantitative real-time PCR (qRT-PCR) and western blot, confirming that excretory-secretory products of the muscle larvae treated primary mouse myoblasts undergo increased proliferation, decreased expression of MHC and up-regulation of α-actin. In addition, changes in relevant muscle transcription factors (Pax7, Myf5 and Mef2c) were observed. Taken together, these results provide new information about how T. spiralis could alter the normal process of skeletal muscle repair after ML invasion to accomplish nurse cell formation.
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Affiliation(s)
- Lizbeth Hernández-Ancheyta
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional, No. 2508, San Pedro Zacatenco, 07360 Mexico City, Mexico
| | - María Del Rosario Salinas-Tobón
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N. Santo Tomás, 11340 Mexico City, Mexico
| | - Juan Carlos Cifuentes-Goches
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional, No. 2508, San Pedro Zacatenco, 07360 Mexico City, Mexico
| | - Javier Hernández-Sánchez
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional, No. 2508, San Pedro Zacatenco, 07360 Mexico City, Mexico.
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28
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Somboonpatarakun C, Rodpai R, Intapan PM, Sanpool O, Sadaow L, Wongkham C, Insawang T, Boonmars T, Maleewong W. Immuno-proteomic analysis of Trichinella spiralis, T. pseudospiralis, and T. papuae extracts recognized by human T. spiralis-infected sera. Parasitol Res 2017; 117:201-212. [PMID: 29189952 DOI: 10.1007/s00436-017-5694-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/21/2017] [Indexed: 11/25/2022]
Abstract
The present study explored potentially immunogenic proteins of the encapsulated (Trichinella spiralis) and non-encapsulated (T. pseudospiralis, T. papuae) species within the genus Trichinella. The somatic muscle larval extracts of each species were subjected to immunoblotting analysis using human T. spiralis-infected serum samples. Fifteen reactive bands of all three species were selected for further protein identification by liquid chromatography-tandem mass spectrometry, and their possible functions were ascertained using the gene ontology. Our findings showed immunogenic protein patterns with molecular mass in the range of 33-67 kDa. Proteomic and bioinformatic analysis revealed a wide variety of functions of 17 identified proteins, which are associated with catalytic, binding, and structural activities. Most proteins were involved in cellular and metabolic processes that contribute in the invasion of host tissues and the larval molting processes. The parasite proteins were identified as actin-5C, serine protease, deoxyribonuclease-2, and intermediate filament protein ifa-1. This information may lead to alternative tools for selection of potential diagnostic protein markers or aid in the design of vaccine candidates for prevention and control of Trichinella infection.
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Affiliation(s)
- Chalermchai Somboonpatarakun
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Research and Diagnostic Center for Emerging Infectious Diseases, Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Rutchanee Rodpai
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Research and Diagnostic Center for Emerging Infectious Diseases, Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Pewpan M Intapan
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Research and Diagnostic Center for Emerging Infectious Diseases, Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Oranuch Sanpool
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Research and Diagnostic Center for Emerging Infectious Diseases, Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Lakkhana Sadaow
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Research and Diagnostic Center for Emerging Infectious Diseases, Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Chaisiri Wongkham
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Tonkla Insawang
- Khon Kaen University Research Instrument Center, Research Affairs, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Thidarut Boonmars
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Wanchai Maleewong
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
- Research and Diagnostic Center for Emerging Infectious Diseases, Mekong Health Science Research Institute, Khon Kaen University, Khon Kaen, Thailand.
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29
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White RR, Ponsford AH, Weekes MP, Rodrigues RB, Ascher DB, Mol M, Selkirk ME, Gygi SP, Sanderson CM, Artavanis-Tsakonas K. Ubiquitin-Dependent Modification of Skeletal Muscle by the Parasitic Nematode, Trichinella spiralis. PLoS Pathog 2016; 12:e1005977. [PMID: 27870901 PMCID: PMC5117777 DOI: 10.1371/journal.ppat.1005977] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 10/04/2016] [Indexed: 12/13/2022] Open
Abstract
Trichinella spiralis is a muscle-specific parasitic worm that is uniquely intracellular. T. spiralis reprograms terminally differentiated skeletal muscle cells causing them to de-differentiate and re-enter the cell cycle, a process that cannot occur naturally in mammalian skeletal muscle cells, but one that holds great therapeutic potential. Although the host ubiquitin pathway is a common target for viruses and bacteria during infection, its role in parasite pathogenesis has been largely overlooked. Here we demonstrate that the secreted proteins of T. spiralis contain E2 Ub-conjugating and E3 Ub-ligase activity. The E2 activity is attributed to TsUBE2L3, a novel and conserved T. spiralis enzyme located in the secretory organ of the parasite during the muscle stages of infection. TsUBE2L3 cannot function with any T.spiralis secreted E3, but specifically binds to a panel of human RING E3 ligases, including the RBR E3 ARIH2 with which it interacts with a higher affinity than the mammalian ortholog UbcH7/UBE2L3. Expression of TsUBE2L3 in skeletal muscle cells causes a global downregulation in protein ubiquitination, most predominantly affecting motor, sarcomeric and extracellular matrix proteins, thus mediating their stabilization with regards to proteasomal degradation. This effect is not observed in the presence of the mammalian ortholog, suggesting functional divergence in the evolution of the parasite protein. These findings demonstrate the first example of host-parasite interactions via a parasite-derived Ub conjugating enzyme; an E2 that demonstrates a novel muscle protein stabilization function. Parasitic worms often establish long-lasting infections in their hosts; tightly regulating their surroundings to strike a delicate balance between host cell modulation and protection that will ensure their replication. This is accomplished via the active secretion of parasite glycolipids and glycoproteins into the host. Trichinella spiralis, a parasitic nematode that infects skeletal muscle of mammals, birds and reptiles, is the only parasitic worm with a true intracellular stage. T. spiralis invade terminally differentiated myotubes, reprogramming them to de-differentiate and re-enter the cell cycle, a process that cannot occur naturally in mammalian skeletal muscle cells, but one that holds great therapeutic potential. We have identified and characterized a novel T. spiralis secreted protein that, despite a high level of sequence identity, appears to have evolved a different function to its host ortholog. This protein is an active Ub conjugating enzyme that binds to a panel of human E3 Ub ligases with higher affinity than the host ortholog. Furthermore, when expressed in skeletal muscle cells in culture, its presence uniquely leads to the stabilization of muscle-specific proteins via the downregulation of their ubiquitination.
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Affiliation(s)
- Rhiannon R. White
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Amy H. Ponsford
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Michael P. Weekes
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
- Department of Cell Biology, Harvard Medical School, Boston, United States of America
| | - Rachel B. Rodrigues
- Department of Cell Biology, Harvard Medical School, Boston, United States of America
| | - David B. Ascher
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
- Department of Biochemistry, University of Melbourne, Melbourne, Australia
| | - Marco Mol
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Murray E. Selkirk
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Steven P. Gygi
- Department of Cell Biology, Harvard Medical School, Boston, United States of America
| | - Christopher M. Sanderson
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Katerina Artavanis-Tsakonas
- Department of Life Sciences, Imperial College London, London, United Kingdom
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
- * E-mail:
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30
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Bermúdez-Cruz RM, Fonseca-Liñán R, Grijalva-Contreras LE, Mendoza-Hernández G, Ortega-Pierres MG. Proteomic analysis and immunodetection of antigens from early developmental stages of Trichinella spiralis. Vet Parasitol 2016; 231:22-31. [PMID: 27396501 DOI: 10.1016/j.vetpar.2016.06.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 06/15/2016] [Accepted: 06/22/2016] [Indexed: 01/26/2023]
Abstract
Trichinella spiralis is an ubiquitous parasitic nematode that lives in muscle tissue of many hosts and causes trichinellosis in humans. Numerous efforts have been directed at specific detection of this infection and strategies for its control. TSL-1 and other antigens, mainly from muscle larvae (ML), have been used to induce partial protection in rodents. An improvement in protective immunity may be achieved by using antigens from other parasite stages. Further, identification of other parasite antigens may provide insights into their role in the host-parasite interaction. In this study, T. spiralis antigens from early developmental parasite stages, namely ML and pre-adult (PA) obtained at 6h, 18h and 30h post-infection, were identified by proteomic and mass spectrometry analyses. Our findings showed a differential expression of several proteins with molecular weights in the range of 13-224kDa and pI range of 4.54-9.89. Bioinformatic analyses revealed a wide diversity of functions in the identified proteins, which include structural, antioxidant, actin binding, peptidyl prolyl cis-trans isomerase, motor, hydrolase, ATP binding, magnesium and calcium binding, isomerase and translation elongation factor. This, together with the differential recognition of antigens from these parasite stages by antibodies present in intestinal fluid, in supernatants from intestinal explants, and in serum samples from mice infected with T. spiralis or re-infected with this parasite, provides information that may lead to alternatives in the design of vaccines against this parasite or for modulation of immune responses.
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Affiliation(s)
- Rosa Ma Bermúdez-Cruz
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Avenida Instituto Politécnico Nacional # 2508, Col. San Pedro Zacatenco, México DF C.P. 07360, Mexico
| | - R Fonseca-Liñán
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Avenida Instituto Politécnico Nacional # 2508, Col. San Pedro Zacatenco, México DF C.P. 07360, Mexico
| | - Lucia Elhy Grijalva-Contreras
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Avenida Instituto Politécnico Nacional # 2508, Col. San Pedro Zacatenco, México DF C.P. 07360, Mexico
| | | | - M Guadalupe Ortega-Pierres
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Avenida Instituto Politécnico Nacional # 2508, Col. San Pedro Zacatenco, México DF C.P. 07360, Mexico.
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Korhonen PK, Pozio E, La Rosa G, Chang BCH, Koehler AV, Hoberg EP, Boag PR, Tan P, Jex AR, Hofmann A, Sternberg PW, Young ND, Gasser RB. Phylogenomic and biogeographic reconstruction of the Trichinella complex. Nat Commun 2016; 7:10513. [PMID: 26830005 PMCID: PMC4740406 DOI: 10.1038/ncomms10513] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 12/18/2015] [Indexed: 01/21/2023] Open
Abstract
Trichinellosis is a globally important food-borne parasitic disease of humans caused by roundworms of the Trichinella complex. Extensive biological diversity is reflected in substantial ecological and genetic variability within and among Trichinella taxa, and major controversy surrounds the systematics of this complex. Here we report the sequencing and assembly of 16 draft genomes representing all 12 recognized Trichinella species and genotypes, define protein-coding gene sets and assess genetic differences among these taxa. Using thousands of shared single-copy orthologous gene sequences, we fully reconstruct, for the first time, a phylogeny and biogeography for the Trichinella complex, and show that encapsulated and non-encapsulated Trichinella taxa diverged from their most recent common ancestor ∼21 million years ago (mya), with taxon diversifications commencing ∼10-7 mya.
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Affiliation(s)
- Pasi K Korhonen
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Edoardo Pozio
- Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Giuseppe La Rosa
- Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Bill C H Chang
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia.,Yourgene Bioscience, Shu-Lin District, New Taipei City 23863, Taiwan
| | - Anson V Koehler
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Eric P Hoberg
- United States National Parasite Collection, US Department of Agriculture, Agricultural Research Service, Beltsville, Maryland 20705, USA
| | - Peter R Boag
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, Victoria 3800, Australia
| | - Patrick Tan
- Genome Institute of Singapore, 60 Biopolis Street, Singapore 138672, Republic of Singapore.,Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore 138672, Republic of Singapore
| | - Aaron R Jex
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Andreas Hofmann
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia.,Structural Chemistry Program, Eskitis Institute, Griffith University, Brisbane, Queensland 4111, Australia
| | - Paul W Sternberg
- Division of Biology, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California 91125, USA
| | - Neil D Young
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
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Wang F, Xu L, Song X, Li X, Yan R. Identification of differentially expressed proteins between free-living and activated third-stage larvae of Haemonchus contortus. Vet Parasitol 2015; 215:72-7. [PMID: 26790740 DOI: 10.1016/j.vetpar.2015.10.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 10/14/2015] [Accepted: 10/31/2015] [Indexed: 01/25/2023]
Abstract
The disease caused by Haemonchus contortus, a blood-feeding nematode of small ruminants, is of major economic importance worldwide. The infective third-stage larva (L3) of this nematode is enclosed in a second cuticle. Once the L3 is ingested by the host, the outer cuticle undergoes an exsheathment process that marks the transition from the free-living stage to the parasitic stage. This study explored the changes in protein expression relative to this transition. Proteins extracted from free living L3 and exsheathed L3 (xL3) were analyzed by two dimensional differential gel electrophoresis (2D-DIGE). More than 2200 protein spots were recognized, and 124 of them was found to be differentially expressed (average ratio of xL3/L3>1.5 or xL3/L3<-1.5, p<0.05). Of these, 83 spots were up-regulated and 41 spots were down-regulated in xL3 when compared with L3. These differentially expressed spots were analyzed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) or MALDI-TOF-MS/MS and 40 proteins were identified. To predict the functions of these identified proteins, they were assigned for gene ontology (GO) annotation. Results showed that the proteins may be involved in biological processes of reproduction, cellular organization or biogenesis, multi-cellular organismal processes, single-organism processes, metabolic processes, signaling, biological regulation, response to stimulus, cellular processes, biological adhesion, growth, locomotion, localization, developmental processes and multi-organism processes. Kyoto Encyclopedia of Genes and Genomes (KEGG) annotations were also performed, which was useful for exploring the process of metabolism and signal transduction pathways. This study indicated that some key alterations taking place, during the transition from L3 to xL3 may be interesting antiparasite targets, and some of the proteins involved in this process might be candidate antigens for vaccine development.
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Affiliation(s)
- Fang Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lixin Xu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaokai Song
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiangrui Li
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ruofeng Yan
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
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Liu RD, Jiang P, Wen H, Duan JY, Wang LA, Li JF, Liu CY, Sun GG, Wang ZQ, Cui J. Screening and characterization of early diagnostic antigens in excretory–secretory proteins from Trichinella spiralis intestinal infective larvae by immunoproteomics. Parasitol Res 2015; 115:615-22. [DOI: 10.1007/s00436-015-4779-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 10/06/2015] [Indexed: 01/03/2023]
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Cao X, Fu Z, Zhang M, Han Y, Han Q, Lu K, Li H, Zhu C, Hong Y, Lin J. Excretory/secretory proteome of 14-day schistosomula, Schistosoma japonicum. J Proteomics 2015; 130:221-30. [PMID: 26453986 DOI: 10.1016/j.jprot.2015.10.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/21/2015] [Accepted: 10/04/2015] [Indexed: 01/09/2023]
Abstract
Schistosomiasis remains a serious public health problem, with 200 million people infected and 779 million people at risk worldwide. The schistosomulum is the early stage of the complex lifecycle of Schistosoma japonicum in their vertebrate hosts, and is the main target of vaccine-induced protective immunity. Excretory/secretory (ES) proteins play a major role in host-parasite interactions and ES protein compositions of schistosomula of S. japonicum have not been characterized to date. In the present study, the proteome of ES proteins from 14 day schistosomula of S. japonicum was analyzed by liquid chromatography/tandem mass spectrometry and 713 unique proteins were finally identified. Gene ontology and pathway analysis revealed that identified proteins were mainly involved in carbohydrate metabolism, degradation, response to stimulus, oxidation-reduction, biological regulation and binding. Flow cytometry analysis demonstrated that thioredoxin peroxidase identified in this study had the effect on inhibiting MHCII and CD86 expression on LPS-activated macrophages. The present study provides insight into the growth and development of the schistosome in the final host and valuable information for screening vaccine candidates for schistosomiasis.
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Affiliation(s)
- Xiaodan Cao
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China
| | - Zhiqiang Fu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China
| | - Min Zhang
- College of Animal Science and Technology, Henran University of Science and Technology, Luoyang, China
| | - Yanhui Han
- College of Animal Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Qian Han
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China
| | - Ke Lu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China
| | - Hao Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China
| | - Chuangang Zhu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China
| | - Yang Hong
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China.
| | - Jiaojiao Lin
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture of China, Shanghai, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
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35
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Liu RD, Cui J, Liu XL, Jiang P, Sun GG, Zhang X, Long SR, Wang L, Wang ZQ. Comparative proteomic analysis of surface proteins of Trichinella spiralis muscle larvae and intestinal infective larvae. Acta Trop 2015; 150:79-86. [PMID: 26184560 DOI: 10.1016/j.actatropica.2015.07.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 06/14/2015] [Accepted: 07/04/2015] [Indexed: 12/11/2022]
Abstract
The critical step for Trichinella spiralis infection is that muscle larvae (ML) are activated to intestinal infective larvae (IIL) and invade intestinal epithelium to further develop. The IIL is its first invasive stage, surface proteins are directly exposed to host environment and are crucial for larval invasion and development. In this study, shotgun LC-MS/MS was used to analyze surface protein profiles of ML and IIL. Totally, 41 proteins common to both larvae, and 85 ML biased and 113 IIL biased proteins. Some proteins (e.g., putative scavenger receptor cysteine-rich domain protein and putative onchocystatin) were involved in host-parasite interactions. Gene ontology analysis revealed that proteins involved in generation of precursor metabolites and energy; and nucleobase, nucleoside, nucleotide and nucleic acid metabolic process were enriched in IIL at level 4. Some IIL biased proteins might play important role in larval invasion and development. qPCR results confirmed the high expression of some genes in IIL. Our study provides new insights into larval invasion, host-Trichinella interaction and for screening vaccine candidate antigens.
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Affiliation(s)
- Ruo Dan Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China.
| | - Xiao Lin Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Peng Jiang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Ge Ge Sun
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Xi Zhang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Shao Rong Long
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Li Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou 450052, China.
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Secretory Products of Trichinella spiralis Muscle Larvae and Immunomodulation: Implication for Autoimmune Diseases, Allergies, and Malignancies. J Immunol Res 2015; 2015:523875. [PMID: 26114122 PMCID: PMC4465845 DOI: 10.1155/2015/523875] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 05/18/2015] [Indexed: 12/12/2022] Open
Abstract
Trichinella spiralis has the unique ability to make itself "at home" by creating and hiding in a new type of cell in the host body that is the nurse cell. From this immunologically privileged place, the parasite orchestrates a long-lasting molecular cross talk with the host through muscle larvae excretory-secretory products (ES L1). Those products can successfully modulate parasite-specific immune responses as well as responses to unrelated antigens (either self or nonself in origin), providing an anti-inflammatory milieu and maintaining homeostasis. It is clear, based on the findings from animal model studies, that T. spiralis and its products induce an immunomodulatory network (which encompasses Th2- and Treg-type responses) that may allow the host to deal with various hyperimmune-associated disorders as well as tumor growth, although the latter still remains unclear. This review focuses on studies of the molecules released by T. spiralis, their interaction with pattern recognition receptors on antigen presenting cells, and subsequently provoked responses. This paper also addresses the immunomodulatory properties of ES L1 molecules and how the induced immunomodulation influences the course of different experimental inflammatory and malignant diseases.
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Martin I, Cabán-Hernández K, Figueroa-Santiago O, Espino AM. Fasciola hepatica fatty acid binding protein inhibits TLR4 activation and suppresses the inflammatory cytokines induced by lipopolysaccharide in vitro and in vivo. THE JOURNAL OF IMMUNOLOGY 2015; 194:3924-36. [PMID: 25780044 DOI: 10.4049/jimmunol.1401182] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 02/06/2015] [Indexed: 12/11/2022]
Abstract
TLR4, the innate immunity receptor for bacterial endotoxins, plays a pivotal role in the induction of inflammatory responses. There is a need to develop molecules that block either activation through TLR4 or the downstream signaling pathways to inhibit the storm of inflammation typically elicited by bacterial LPS, which is a major cause of the high mortality associated with bacterial sepsis. We report in this article that a single i.p. injection of 15 μg fatty acid binding protein from Fasciola hepatica (Fh12) 1 h before exposure to LPS suppressed significantly the expression of serum inflammatory cytokines in a model of septic shock using C57BL/6 mice. Because macrophages are a good source of IL-12p70 and TNF-α, and are critical in driving adaptive immunity, we investigated the effect of Fh12 on the function of mouse bone marrow-derived macrophages (bmMΦs). Although Fh12 alone did not induce cytokine expression, it significantly suppressed the expression of IL-12, TNF-α, IL-6, and IL-1β cytokines, as well as inducible NO synthase-2 in bmMΦs, and also impaired the phagocytic capacity of bmMΦs. Fh12 had a limited effect on the expression of inflammatory cytokines induced in response to other TLR ligands. One mechanism used by Fh12 to exert its anti-inflammatory effect is binding to the CD14 coreceptor. Moreover, it suppresses phosphorylation of ERK, p38, and JNK. The potent anti-inflammatory properties of Fh12 demonstrated in this study open doors to further studies directed at exploring the potential of this molecule as a new class of drug against septic shock or other inflammatory diseases.
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Affiliation(s)
- Ivelisse Martin
- Laboratory of Immunology and Molecular Parasitology, Department of Microbiology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico 00936-5067
| | - Kimberly Cabán-Hernández
- Laboratory of Immunology and Molecular Parasitology, Department of Microbiology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico 00936-5067
| | - Olgary Figueroa-Santiago
- Laboratory of Immunology and Molecular Parasitology, Department of Microbiology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico 00936-5067
| | - Ana M Espino
- Laboratory of Immunology and Molecular Parasitology, Department of Microbiology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico 00936-5067
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Characterisation of a high-frequency gene encoding a strongly antigenic cystatin-like protein from Trichinella spiralis at its early invasion stage. Parasit Vectors 2015; 8:78. [PMID: 25653126 PMCID: PMC4334762 DOI: 10.1186/s13071-015-0689-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/22/2015] [Indexed: 11/10/2022] Open
Abstract
Background The intestinal phase is the early invasion stage of Trichinella spiralis (T. spiralis), in which muscle larvae invade intestine epithelial cells and then develop into adult worms to breed newborn larvae. Thus, intestinal infective larvae are first exposed to the immune system of the host, and antigens from the worms may be the earliest marker in the diagnosis of trichinellosis and may contribute to vaccine development to prevent Trichinella infections in pigs. Methods A cDNA library of intestinal infective larvae of T. spiralis at 6 hours post infection (p.i.) was constructed and immunoscreened using serum collected from pigs that were infected with T. spiralis at 26 days p.i. T. spiralis cystatin-like protein (Ts-CLP) gene encoding a 45.9 kDa protein was cloned and expressed in Escherichia coli. The rabbit antisera were generated and used to determine the location of Ts-CLP in the parasite. Transcription levels of Ts-CLP in different developmental stages of T. spiralis were observed by RT-PCR. The potential application of recombinant Ts-CLP in diagnosis against T. spiralis infection was tested by ELISA. The immune protection of recombinant Ts-CLP protein against T. spiralis infection was evaluated in mice. Results Thirty-three positive clones were selected from cDNA library, among which 20 clones encoded the same novel cystatin-like protein (Ts-CLP). Immunolocalisation and real-time quantitative PCR revealed that native Ts-CLP was localised primarily to β-stichocytes and that the Ts-clp gene was transcribed and expressed in all developmental stages of T. spiralis. The recombinant protein rTs-CLP was recognised by pig antiserum as early as 15 days p.i., and could induce protective immunity in mice, with a 61.21% reduction in the number of muscle larvae. Conclusions These data preliminarily suggested that Ts-CLP may play an important role in the early infection of T. spiralis and that recombinant Ts-CLP protein is a candidate antigen for diagnosis and vaccine development in Trichinella infections.
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Bien J, Cabaj W, Moskwa B. Proteomic analysis of potential immunoreactive proteins from muscle larvae and adult worms of Trichinella spiralis in experimentally infected pigs. Folia Parasitol (Praha) 2015; 62. [PMID: 25960566 DOI: 10.14411/fp.2015.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 12/10/2014] [Indexed: 11/19/2022]
Abstract
The present study was undertaken to identify potentially immunoreactive proteins of the muscle larvae (ML) and adult stage (Ad) of the nematode Trichinella spiralis Owen, 1835. To identify immunoreactive proteins that are specifically recognised by anti-Trichinella antibodies, ML and Ad crude extracts and their excretory-secretory (E-S) products were subjected to sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and immunoblot with serum samples from pigs experimentally infected with T. spiralis. A total of 18 bands were selected for final identification by liquid chromatography-tandem mass spectrometry. To further understand the functions of the proteins identified in this study, gene ontology terms were applied. Results showed that the specific antibodies against T. spiralis reacted with protein bands matching heat shock proteins, aminopeptidase, enolase, isocitrate dehydrogenase NADP-dependent, tropomyosin, P49 antigen, serine proteinase, secreted 5'-nucleotidase, antigen targeted by protective antibodies, 53 kDa E-S antigen, putative trypsin and paramyosin. Three proteins common for both adult stage and muscle larvae, including heat shock proteins, enolase and 5'-nucleotidase, might play important role during T. spiralis infection. These proteins are presumably presented to the host immune system and may induce humoral immune response. Thus, these proteins may be potential antigens for early diagnosis and the development of a vaccine against the parasite.
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Affiliation(s)
- Justyna Bien
- Witold Stefanski Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
| | - Wladyslaw Cabaj
- Witold Stefanski Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
| | - Bozena Moskwa
- Witold Stefanski Institute of Parasitology, Polish Academy of Sciences, Warsaw, Poland
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40
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Harnessing the helminth secretome for therapeutic immunomodulators. BIOMED RESEARCH INTERNATIONAL 2014; 2014:964350. [PMID: 25133189 PMCID: PMC4123613 DOI: 10.1155/2014/964350] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 12/24/2022]
Abstract
Helminths are the largest and most complex pathogens to invade and live within the human body. Since they are not able to outpace the immune system by rapid antigen variation or faster cell division or retreat into protective niches not accessible to immune effector mechanisms, their long-term survival depends on influencing and regulating the immune responses away from the mode of action most damaging to them. Immunologists have focused on the excretory and secretory products that are released by the helminths, since they can change the host environment by modulating the immune system. Here we give a brief overview of the helminth-associated immune response and the currently available helminth secretome data. We introduce some major secretome-derived immunomodulatory molecules and describe their potential mode of action. Finally, the applicability of helminth-derived therapeutic proteins in the treatment of allergic and autoimmune inflammatory disease is discussed.
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Mangiola S, Young ND, Sternberg PW, Strube C, Korhonen PK, Mitreva M, Scheerlinck JP, Hofmann A, Jex AR, Gasser RB. Analysis of the transcriptome of adult Dictyocaulus filaria and comparison with Dictyocaulus viviparus, with a focus on molecules involved in host-parasite interactions. Int J Parasitol 2014; 44:251-61. [PMID: 24487001 DOI: 10.1016/j.ijpara.2013.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 12/11/2013] [Accepted: 12/18/2013] [Indexed: 01/09/2023]
Abstract
Parasitic nematodes cause diseases of major economic importance in animals. Key representatives are species of Dictyocaulus (=lungworms), which cause bronchitis (=dictyocaulosis, commonly known as "husk") and have a major adverse impact on the health of livestock. In spite of their economic importance, very little is known about the immunomolecular biology of these parasites. Here, we conducted a comprehensive investigation of the adult transcriptome of Dictyocaulus filaria of small ruminants and compared it with that of Dictyocaulus viviparus of bovids. We then identified a subset of highly transcribed molecules inferred to be linked to host-parasite interactions, including cathepsin B peptidases, fatty-acid and/or retinol-binding proteins, β-galactoside-binding galectins, secreted protein 6 precursors, macrophage migration inhibitory factors, glutathione peroxidases, a transthyretin-like protein and a type 2-like cystatin. We then studied homologues of D. filaria type 2-like cystatin encoded in D. viviparus and 24 other nematodes representing seven distinct taxonomic orders, with a particular focus on their proposed role in immunomodulation and/or metabolism. Taken together, the present study provides new insights into nematode-host interactions. The findings lay the foundation for future experimental studies and could have implications for designing new interventions against lungworms and other parasitic nematodes. The future characterisation of the genomes of Dictyocaulus spp. should underpin these endeavours.
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Affiliation(s)
- Stefano Mangiola
- Faculty of Veterinary Science, The University of Melbourne, Victoria, Australia
| | - Neil D Young
- Faculty of Veterinary Science, The University of Melbourne, Victoria, Australia.
| | - Paul W Sternberg
- HHMI, Division of Biology, California Institute of Technology, Pasadena, CA, USA
| | - Christina Strube
- Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Pasi K Korhonen
- Faculty of Veterinary Science, The University of Melbourne, Victoria, Australia
| | - Makedonka Mitreva
- The Genome Institute, Washington University School of Medicine, St. Louis, MO, USA; Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Andreas Hofmann
- Faculty of Veterinary Science, The University of Melbourne, Victoria, Australia; Eskitis Institute for Cell & Molecular Therapies, Griffith University, Brisbane, Australia
| | - Aaron R Jex
- Faculty of Veterinary Science, The University of Melbourne, Victoria, Australia
| | - Robin B Gasser
- Faculty of Veterinary Science, The University of Melbourne, Victoria, Australia; Institute of Parasitology and Tropical Veterinary Medicine, Berlin, Germany.
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Cui J, Liu RD, Wang L, Zhang X, Jiang P, Liu MY, Wang ZQ. Proteomic analysis of surface proteins of Trichinella spiralis muscle larvae by two-dimensional gel electrophoresis and mass spectrometry. Parasit Vectors 2013; 6:355. [PMID: 24330777 PMCID: PMC3866304 DOI: 10.1186/1756-3305-6-355] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 12/04/2013] [Indexed: 12/04/2022] Open
Abstract
Background Trichinella spiralis is a zoonotic tissue-dwelling parasitic nematode that infects humans and other mammals. Its surface proteins are recognized as antigenic in many infected hosts, being directly exposed to the host’s immune system and are the main target antigens that induce the immune responses. The larval surface proteins may also interact with intestinal epithelial cells and may play an important role in the invasion and development process of T. spiralis. The purpose of this study was to analyze and characterize the surface proteins of T. spiralis muscle larvae by two-dimensional gel electrophoresis (2-DE) and mass spectrometry. Methods The surface proteins of T. spiralis muscle larvae were stripped from the cuticle of live larvae by the cetyltrimethylammonium bromide (CTAB) and sodium deoxycholate. The surface protein stripping was examined by an immunofluorescent test (IFT). The surface proteins were analyzed by SDS-PAGE and Western blotting, and then identified by 2-DE and MALDI-TOF/TOF mass spectrometry analysis. Results The IFT results showed that the surface proteins-stripped larvae were not recognized by sera of mice immunized with surface antigens. Western blotting showed 7 of 12 protein bands of the surface proteins were recognized by mouse infection sera at 18 dpi and at 42 dpi. The 2-DE results showed that a total of approximately 33 proteins spots were detected with molecular weights varying from 10 to 66 kDa and isoelectric point (pI) from 4 to 7. Twenty-seven of 33 protein spots were identified and characterized to correlate with 15 different proteins. Out of the 14 proteins identified as T. spiralis proteins, 5 proteins (partial P49 antigen, deoxyribonuclease II family protein, two serine proteases, and serine proteinase) had catalytic and hydrolase activity. All of these 5 proteins were also associated with metabolic processes and 2 of the five proteins were associated with cellular processes. Conclusions In this study, T. spiralis muscle larval surface proteins have been identified, which will provide useful information to elucidate the host-parasite interaction, identify the invasion-related proteins, early diagnostic antigens and the targets for a vaccine.
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Affiliation(s)
- Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, P, R, China.
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Analysis of differentially expressed genes of Trichinella spiralis larvae activated by bile and cultured with intestinal epithelial cells using real-time PCR. Parasitol Res 2013; 112:4113-20. [DOI: 10.1007/s00436-013-3602-1] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 08/25/2013] [Indexed: 01/08/2023]
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An antigenic recombinant serine protease from Trichinella spiralis induces protective immunity in BALB/c mice. Parasitol Res 2013; 112:3229-38. [PMID: 23828191 DOI: 10.1007/s00436-013-3500-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 06/11/2013] [Indexed: 10/26/2022]
Abstract
In this study, we report the cloning and characterization of a cDNA encoding a Trichinella serine protease gene (TspSP-1.3) from GenBank. The recombinant TspSP-1.3 protein (rTspSP-1.3) was expressed in an Escherichia coli expression system and purified with Ni-affinity chromatography. Real-time quantitative PCR analysis revealed that TspSP-1.3 was expressed at significantly higher levels in muscle larvae and adult worms than in newborn larvae. TspSP-1.3 was detected in excretory-secretory proteins of Trichinella spiralis with western blotting. Immunization with the rTspSP-1.3 antigen induced humoral immune responses, which manifested as elevated specific anti-rTspSP-1.3 IgG and IgE antibodies and a mixed Th1/Th2 response. To determine whether purified rTspSP-1.3 had good antigenicity and could be a vaccine candidate for the control of T. spiralis infection, we immunized BALB/c mice with rTspSP-1.3 and subsequently challenged the mice with T. spiralis larvae. The results showed that mice vaccinated with rTspSP-1.3 exhibited an average reduction in the muscle larvae burden of 39 % relative to the control group. These results suggest that TspSP-1.3 could be a novel vaccine candidate for controlling Trichinella infection.
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Ren HJ, Cui J, Yang W, Liu RD, Wang ZQ. Identification of differentially expressed genes of Trichinella spiralis larvae after exposure to host intestine milieu. PLoS One 2013; 8:e67570. [PMID: 23840742 PMCID: PMC3695927 DOI: 10.1371/journal.pone.0067570] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Accepted: 05/20/2013] [Indexed: 01/08/2023] Open
Abstract
Although it has been known for many years that T. spiralis muscle larvae (ML) can not invade intestinal epithelial cells unless they are exposed to the intestinal milieu and activated into intestinal infective larvae (IIL), which genes in IIL are involved in the process of invasion is still unknown. In this study, suppression subtractive hybridization (SSH) was performed to identify differentially expressed genes between IIL and ML. SSH library was constructed using cDNA generated from IIL as the ‘tester’. About 110 positive clones were randomly selected from the library and sequenced, of which 33 T. spiralis genes were identified. Thirty encoded proteins were annotated according to Gene Ontology Annotation in terms of molecular function, biological process, and cellular localization. Out of 30 annotated proteins, 16 proteins (53.3%) had binding activity and 12 proteins (40.0%) had catalytic activity. The results of real-time PCR showed that the expression of nine genes (Ts7, Ndr family protein; Ts8, serine/threonine-protein kinase polo; Ts11, proteasome subunit beta type-7; Ts17, nudix hydrolase; Ts19, ovochymase-1; Ts22, fibronectin type III domain protein; Ts23, muscle cell intermediate filament protein OV71; Ts26, neutral and basic amino acid transport protein rBAT and Ts33, FACT complex subunit SPT16) from 33 T. spiralis genes in IIL were up-regulated compared with that of ML. The present study provide a group of the potential invasion-related candidate genes and will be helpful for further studies of mechanisms by which T. spiralis infective larvae recognize and invade the intestinal epithelial cells.
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Affiliation(s)
- Hui Jun Ren
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, China
- Departments of Clinical Laboratory, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, China
- * E-mail: (JC); (ZQW)
| | - Wei Yang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, China
| | - Ruo Dan Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, China
- * E-mail: (JC); (ZQW)
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New pieces of the Trichinella puzzle. Int J Parasitol 2013; 43:983-97. [PMID: 23816802 DOI: 10.1016/j.ijpara.2013.05.010] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 05/27/2013] [Accepted: 05/29/2013] [Indexed: 11/22/2022]
Abstract
Contrary to our understanding of just a few decades ago, the genus Trichinella now consists of a complex assemblage of no less than nine different species and three additional genotypes whose taxonomic status remains in flux. New data and methodologies have allowed advancements in detection and differentiation at the population level which in turn have demonstrably advanced epidemiological, immunological and genetic investigations. In like manner, molecular and genetic studies have permitted us to hypothesise biohistorical events leading to the worldwide dissemination of this genus, and to begin crystalising the evolution of Trichinella on a macro scale. The identification of species in countries and continents otherwise considered Trichinella-free has raised questions regarding host adaptation and associations, and advanced important findings on the biogeographical histories of its members. Using past reviews as a backdrop, we have ventured to present an up-to-date assessment of the taxonomy, phylogenetic relationships and epidemiology of the genus Trichinella with additional insights on host species, survival strategies in nature and the shortcomings of our current understanding of the epidemiology of the genus. In addition, we have begun compiling information available to date on genomics, proteomics, transcriptomics and population studies of consequence in the hope we can build on this in years to come.
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Berriman M, Lustigman S, McCarter JP. Genomics and emerging drug discovery technologies. Expert Opin Drug Discov 2013; 2:S83-9. [PMID: 23489036 DOI: 10.1517/17460441.2.s1.s83] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
As in other areas of the biological sciences, a decisive move into the genomics era is underway for the study of helminths. As sequencing technologies improve and costs continue to drop, genomes are becoming available and will eventually be taken for granted by parasitologists and drug discovery researchers as being core knowledge for any organism of interest. Within a decade, it is plausible to envision the availability of draft or complete genomes from 100 nematode and platyhelminth species. Helminth genome sequencing offers substantial challenges to assembly and annotation because of size, repeat and gene structure and sequence polymorphisms. Research programmes in parasitology will need to adapt to effectively make use of these genomes and to identify the most promising opportunities for the application of genomic information to the development of control strategies, including anthelmintics. Immediate avenues for the use of genomes include superior description of gene and protein expression and function through microarrays, proteomics and RNA interference.
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Affiliation(s)
- Matthew Berriman
- Wellcome Trust Sanger Institute, Pathogen Sequencing Unit, Wellcome Trust Genome Campus, Hinxton, CB10 1SA, UK
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Wang B, Wang ZQ, Jin J, Ren HJ, Liu LN, Cui J. Cloning, expression and characterization of a Trichinella spiralis serine protease gene encoding a 35.5 kDa protein. Exp Parasitol 2013; 134:148-54. [PMID: 23501807 DOI: 10.1016/j.exppara.2013.03.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 01/21/2013] [Accepted: 03/07/2013] [Indexed: 11/30/2022]
Abstract
Serine proteases are found in the excretory-secretory (ES) products from Trichinella spiralis muscle larvae, have collagenolytic and elastolytic activities, and may be related to the larval invasion of intestinal epithelial cells. In this study, the serine protease gene (TspSP-1.2, GenBank accession No. EU302800) encoding a 35.5 kDa protein from T. spiralis was cloned, and recombinant TspSP-1.2 protein was produced in an Escherichia coli expression system. An anti-TspSP-1.2 serum recognized the native protein migrating at 35.5 kDa by the Western blotting of the crude or ES antigens from muscle larvae at 42 days post infection. An immunolocalization analysis identified TspSP-1.2 in the cuticle and internal organs of the parasite. Transcription and expression of the TspSP-1.2 gene was observed at all developmental stages of T. spiralis (adult worms, newborn larvae, pre-encapsulated larvae and muscle larvae). An in vitro invasion assay showed that, when anti-TspSP-1.2 serum, serum of infected mice and normal mouse serum were added to the medium, the invasion rate of the infective larvae in an HCT-8 cell monolayer was 33.0%, 89.4%, and 96.2%, respectively (P<0.05), indicating that the anti-TspSP-1.2 serum partially prevented the larval invasion of intestinal epithelial cells. After a challenge infection with T. spiralis infective larvae, mice immunized with the recombinant TspSP-1.2 protein displayed a 34.92% reduction in adult worm burden and 52.24% reduction in muscle larval burden. The results showed that the recombinant TspSP-1.2 protein induced a partial protective immunity in mice and could be considered as a potential vaccine candidate against T. spiralis infection.
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Affiliation(s)
- Bin Wang
- Department of Parasitology, Medical College, Zhengzhou University, 40 Daxue Road, Zhengzhou 450052, PR China
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Recognition of antigens of three different stages of the Trichinella spiralis by antibodies from pigs infected with T. spiralis. Exp Parasitol 2013; 134:129-37. [PMID: 23474204 DOI: 10.1016/j.exppara.2013.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 02/05/2013] [Accepted: 02/19/2013] [Indexed: 12/31/2022]
Abstract
Infective muscle larvae (ML), adults (Ad) and new born larvae (NBL) of Trichinella spiralis express many immunogenic proteins which can elicit a host protective response, and may be useful in the diagnosis of Trichinella infected humans and animals. The present study was carried out to identify T. spiralis antigens recognized by antibodies from pigs infected with T. spiralis. To that end, the crude extracts of ML, Ad, NBL and ML excretory-secretory (E-S) and Ad E-S proteins were analyzed by sodium dodecyl sulfate polycrystalline gel electrophoresis (SDS-PAGE). To identify antigens of T. spiralis that are recognized by host antibodies, crude extracts and E-S proteins were subjected to immunoblot with antisera derived from pigs experimentally infected with 200 or 20,000 T. spiralis ML. Searching for T. spiralis antigens with diagnostic potential, immunoblots showed that all T. spiralis antisera, regardless of the infective dose, recognized common proteins in each examined life stage with molecular weights around 20-27 kDa, 41 kDa and 197-105 kDa. Interestingly, all the common proteins were detected by T. spiralis sera throughout the infection, from 5 days post infection (dpi) to 60 dpi. These results extend our knowledge of specific antigenic components of T. spiralis. The finding of common components among all T. spiralis life stages may be useful in the preparation of parasite antigens for diagnostic use, as these antigens are relevant regardless of infection phase.
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Liu X, Song Y, Jiang N, Wang J, Tang B, Lu H, Peng S, Chang Z, Tang Y, Yin J, Liu M, Tan Y, Chen Q. Global gene expression analysis of the zoonotic parasite Trichinella spiralis revealed novel genes in host parasite interaction. PLoS Negl Trop Dis 2012; 6:e1794. [PMID: 22953016 PMCID: PMC3429391 DOI: 10.1371/journal.pntd.0001794] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 07/12/2012] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Trichinellosis is a typical food-borne zoonotic disease which is epidemic worldwide and the nematode Trichinella spiralis is the main pathogen. The life cycle of T. spiralis contains three developmental stages, i.e. adult worms, new borne larva (new borne L1 larva) and muscular larva (infective L1 larva). Stage-specific gene expression in the parasites has been investigated with various immunological and cDNA cloning approaches, whereas the genome-wide transcriptome and expression features of the parasite have been largely unknown. The availability of the genome sequence information of T. spiralis has made it possible to deeply dissect parasite biology in association with global gene expression and pathogenesis. METHODOLOGY AND PRINCIPAL FINDINGS In this study, we analyzed the global gene expression patterns in the three developmental stages of T. spiralis using digital gene expression (DGE) analysis. Almost 15 million sequence tags were generated with the Illumina RNA-seq technology, producing expression data for more than 9,000 genes, covering 65% of the genome. The transcriptome analysis revealed thousands of differentially expressed genes within the genome, and importantly, a panel of genes encoding functional proteins associated with parasite invasion and immuno-modulation were identified. More than 45% of the genes were found to be transcribed from both strands, indicating the importance of RNA-mediated gene regulation in the development of the parasite. Further, based on gene ontological analysis, over 3000 genes were functionally categorized and biological pathways in the three life cycle stage were elucidated. CONCLUSIONS AND SIGNIFICANCE The global transcriptome of T. spiralis in three developmental stages has been profiled, and most gene activity in the genome was found to be developmentally regulated. Many metabolic and biological pathways have been revealed. The findings of the differential expression of several protein families facilitate understanding of the molecular mechanisms of parasite biology and the pathological aspects of trichinellosis.
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Affiliation(s)
- Xiaolei Liu
- Key Laboratory of Zoonosis, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun, People's Republic of China
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