Parasite Immunology最新文献

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Basophil responses in susceptible AKR mice upon infection with the intestinal helminth parasite Trichuris muris. 易感AKR小鼠感染肠道蠕虫寄生虫鼠鞭虫后的嗜碱性粒细胞反应。
IF 1.4 4区 医学
Parasite Immunology Pub Date : 2023-08-01 Epub Date: 2023-07-06 DOI: 10.1111/pim.12999
Shuchi Smita, Lauren M Webb, Bridget Mooney, Simon P Früh, Oyebola O Oyesola, Macy K Matheson, Seth A Peng, Elia D Tait Wojno
{"title":"Basophil responses in susceptible AKR mice upon infection with the intestinal helminth parasite Trichuris muris.","authors":"Shuchi Smita, Lauren M Webb, Bridget Mooney, Simon P Früh, Oyebola O Oyesola, Macy K Matheson, Seth A Peng, Elia D Tait Wojno","doi":"10.1111/pim.12999","DOIUrl":"10.1111/pim.12999","url":null,"abstract":"<p><p>Intestinal helminth infection promotes a Type 2 inflammatory response in resistant C57BL/6 mice that is essential for worm clearance. The study of inbred mouse strains has revealed factors that are critical for parasite resistance and delineated the role of Type 1 versus Type 2 immune responses in worm clearance. In C57BL/6 mice, basophils are key innate immune cells that promote Type 2 inflammation and are programmed via the Notch signalling pathway during infection with the helminth Trichuris muris. However, how the host genetic background influences basophil responses and basophil expression of Notch receptors remains unclear. Here we use genetically susceptible inbred AKR/J mice that have a Type 1-skewed immune response during T. muris infection to investigate basophil responses in a susceptible host. Basophil population expansion occurred in AKR/J mice even in the absence of fulminant Type 2 inflammation during T. muris infection. However, basophils in AKR/J mice did not robustly upregulate expression of the Notch2 receptor in response to infection as occurred in C57BL/6 mice. Blockade of the Type 1 cytokine interferon-γ in infected AKR/J mice was not sufficient to elicit infection-induced basophil expression of the Notch2 receptor. These data suggest that the host genetic background, outside of the Type 1 skew, is important in regulating basophil responses during T. muris infection in susceptible AKR/J mice.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 8","pages":"e12999"},"PeriodicalIF":1.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10513073/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10201600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The mouse model of chronic asthma: Airway remodelling and disease exacerbation by somatic antigen of Echinococcus granulosus. 慢性哮喘小鼠模型:细粒棘球绦虫体细胞抗原对气道重塑和疾病加重的影响。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-07-01 DOI: 10.1111/pim.12985
Sara Ghabdian, Sima Parandeh Shirvan, Mohsen Maleki, Hassan Borji
{"title":"The mouse model of chronic asthma: Airway remodelling and disease exacerbation by somatic antigen of Echinococcus granulosus.","authors":"Sara Ghabdian,&nbsp;Sima Parandeh Shirvan,&nbsp;Mohsen Maleki,&nbsp;Hassan Borji","doi":"10.1111/pim.12985","DOIUrl":"https://doi.org/10.1111/pim.12985","url":null,"abstract":"<p><p>There is now sufficient evidence to support an inverse association between helminth infection and secreted products with allergic/autoimmune disorders. Accordingly, several experimental studies have shown that Echinococcus granulosus infection and hydatid cyst compounds are able to suppress immune responses in allergic airway inflammation. This is the first study on effects of somatic antigens of E. granulosus on chronic allergic airway inflammation in BALB/c mice. Mice in OVA group were intraperitoneally (IP) sensitized with OVA/Alum. Subsequently, were challenged by nebulizing of OVA 1%. The treatment groups received somatic antigens of protoscoleces on the specified days. Mice in PBS group were received PBS in both sensitization and challenge. The effects of somatic products on development of chronic allergic airway inflammation were evaluated by examining histopathological changes, the recruitment of inflammatory cells in the bronchoalveolar lavage, cytokines production in the homogenized lung tissue, and total antioxidant capacity in serum. Our findings show that the co-administration of somatic antigens of protoscoleces simultaneously with the development of asthma intensifies allergic airway inflammation. The identification of effective components involved in exacerbation of allergic airway inflammation manifestations will be a crucial approach to understanding the mechanism of these interactions.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 7","pages":"e12985"},"PeriodicalIF":2.2,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9676028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Oral administration of helminth fluid modulates distinct tuft cell and immune-metabolic cues linked to reduced body fat. 口服蠕虫液可调节与减少体脂相关的不同簇状细胞和免疫代谢信号。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-07-01 DOI: 10.1111/pim.12998
Daniel Andersen, Janne Marie Moll, Pankaj Arora, Niels Banhos Danneskiold-Samsøe, Si Brask Sonne, Christopher Thomas Workman, Andrew Richard Williams, Karsten Kristiansen, Susanne Brix
{"title":"Oral administration of helminth fluid modulates distinct tuft cell and immune-metabolic cues linked to reduced body fat.","authors":"Daniel Andersen,&nbsp;Janne Marie Moll,&nbsp;Pankaj Arora,&nbsp;Niels Banhos Danneskiold-Samsøe,&nbsp;Si Brask Sonne,&nbsp;Christopher Thomas Workman,&nbsp;Andrew Richard Williams,&nbsp;Karsten Kristiansen,&nbsp;Susanne Brix","doi":"10.1111/pim.12998","DOIUrl":"https://doi.org/10.1111/pim.12998","url":null,"abstract":"<p><p>Intestinal tuft cells have been shown to induce type 2 immune responses during viable parasite infections, but whether oral supplementation with a parasitic exudate is able to promote type 2 immune responses that have been shown to positively regulate obesogenic metabolic processes is yet unresolved. High-fat fed mice were gavaged with pseudocoelomic fluid (PCF) derived from the helminth Ascaris suum or saline thrice a week during weeks 5-9, followed by examination of intestinal tuft cell activity, immune, and metabolic parameters. Helminth PCF upregulated expression of distinct genes in small intestinal tuft cells, including genes involved in regulation of RUNX1 and organic cation transporters. Helminth PCF also enhanced levels of innate lymphoid cells in the ileum, and eosinophils in epididymal white adipose tissue (eWAT). Network analyses revealed two distinct immunometabolic cues affected by oral helminth PCF in high-fat fed mice: one coupling the small intestinal tuft cell responses to the fat-to-lean mass ratio and a second coupling eosinophils in eWAT to general regulation of body fat mass. Our findings point to specific mechanisms by which oral supplementation with helminth PCF may translate into systems-wide effects linking to reduced body and fat mass gain in mice during high-fat feeding.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 7","pages":"e12998"},"PeriodicalIF":2.2,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9676011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a novel immunoFET technology-based POC assay for detection of Leishmania donovani and Leishmania major. 基于免疫场效应晶体管技术的新型多诺瓦利什曼原虫和大利什曼原虫POC检测方法的开发。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-07-01 DOI: 10.1111/pim.12984
Nebiye Yentur Doni, Paul J Bertani, Greta Volpedo, Noushin Saljoughian, Sanjay Varikuti, Greg Matlashewski, Wu Lu, Abhay R Satoskar
{"title":"Development of a novel immunoFET technology-based POC assay for detection of Leishmania donovani and Leishmania major.","authors":"Nebiye Yentur Doni,&nbsp;Paul J Bertani,&nbsp;Greta Volpedo,&nbsp;Noushin Saljoughian,&nbsp;Sanjay Varikuti,&nbsp;Greg Matlashewski,&nbsp;Wu Lu,&nbsp;Abhay R Satoskar","doi":"10.1111/pim.12984","DOIUrl":"https://doi.org/10.1111/pim.12984","url":null,"abstract":"<p><p>Leishmaniasis is considered as one of the 20 neglected tropical diseases. Current methods of leishmanial diagnosis depend on conventional laboratory-based techniques, which are time-consuming, costly and require special equipment and trained personnel. In this context, we aimed to provide an immuno field effect transistors (ImmunoFET) biosensor that matches the conventional standards for point-of-care (POC) monitoring and detection of Leishmania (L.) donovani/Leishmania major. Crude antigens prepared by repeated freeze thawing of L. donovani/L. major stationary phase promastigotes were used for ELISA and ImmunoFETs. Lesishmania-specific antigens were serially diluted in 1× PBS from a concentration of 10<sup>6</sup> -10<sup>2</sup> parasites/mL. A specific polyclonal antibody-based sandwich ELISA was established for the detection of Leishmania antigens. An immunoFET technology-based POC novel assay was constructed for the detection of Leishmania antigens. Interactions between antigen-antibody at the gate surface generate an electrical signal that can be measured by semiconductor field-effect principles. Sensitivity was considered and measured as the change in current divided by the initial current. The final L. donovani/L. major crude antigen protein concentrations were measured as 1.50 mg/mL. Sandwich ELISA against the Leishmania 40S ribosomal protein detected Leishmania antigens could detect as few as 100 L. donovani/L. major parasites. An immunoFET biosensor was constructed based on the optimization of aluminium gallium nitride/gallium nitride (AlGaN/GaN) surface oxidation methods. The device surface was composed by an AlGaN/GaN wafer with a 23 nm AlGaN barrier layer, a 2 μm GaN layer on the silicon carbide (SiC) substrate for Leishmania binding, and coated with a specific antibody against the Leishmania 40S ribosomal protein, which was successfully detected at concentrations from 10<sup>6</sup> to 10<sup>2</sup> parasites/mL in 1× PBS. At the concentration of 10<sup>4</sup> parasites, the immunoFETs device sensitivities were 13% and 0.052% in the sub-threshold regime and the saturation regime, respectively. Leishmania parasites were successfully detected by the ImmunoFET biosensor at a diluted concentration as low as 150 ng/mL. In this study, the developed ImmunoFET biosensor performed well. ImmunoFET biosensors can be used as an alternative diagnostic method to ELISA. Increasing the sensitivity and optimization of immuno-FET biosensors might allow earlier and faster detection of leishmaniasis.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 7","pages":"e12984"},"PeriodicalIF":2.2,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10040105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The abundance and morphology of human large intestinal goblet and tuft cells during chronic schistosomiasis. 慢性血吸虫病期间人类大肠鹅口疮细胞和簇细胞的数量和形态。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-06-01 Epub Date: 2023-04-11 DOI: 10.1111/pim.12981
Matthew B Gologorsky, Claire M Mechler, Erna Forgó, Gregory W Charville, Michael R Howitt
{"title":"The abundance and morphology of human large intestinal goblet and tuft cells during chronic schistosomiasis.","authors":"Matthew B Gologorsky, Claire M Mechler, Erna Forgó, Gregory W Charville, Michael R Howitt","doi":"10.1111/pim.12981","DOIUrl":"10.1111/pim.12981","url":null,"abstract":"<p><p>Schistosomiasis affects nearly 240 million people in predominately low- and middle-income countries and ranks second in the number of cases and socio-economic burden among all parasitic diseases. Despite the enormous burden posed by schistosomes, our understanding of how schistosomiasis impacts infected human tissues remains limited. Intestinal schistosomiasis in animal models leads to goblet cell hyperplasia, likely increasing mucus production and reflecting an intestinal type 2 immune response. However, it is unknown whether these same changes occur in schistosome-infected humans. Using immunofluorescence and light microscopy, we compared the abundance and morphology of goblet cells in patients diagnosed with schistosomiasis to uninfected controls. The mucin-containing vesicles in goblet cells from schistosome-infected patients were significantly larger (hypertrophic) than uninfected individuals, although goblet cell hyperplasia was absent in chronic human schistosomiasis. In addition, we examined tuft cells in the large intestinal epithelium of control and schistosome-infected patients. Tuft cell numbers expand during helminth infection in mice, but these cells have not been characterized in human parasite infections. We found no evidence of tuft cell hyperplasia during human schistosome infection. Thus, our study provides novel insight into schistosome-associated changes to the intestinal epithelium in humans, suggesting an increase in mucus production by large intestinal goblet cells but relatively minor effects on tuft cell numbers.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 6","pages":"e12981"},"PeriodicalIF":2.2,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10192203/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9513192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Benzonidazole treatment has a beneficial effect on cells infected with the Colombian strain of Trypanosoma cruzi. 苯并硝唑治疗对感染哥伦比亚克氏锥虫菌株的细胞有有益作用。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-06-01 DOI: 10.1111/pim.12983
Leyllane Rafael Moreira, Kamila Kássia Dos Santos Oliveira, Diego José Lira Torres, Michelle da Silva Barros, Tiago Ribeiro de Arruda, Amanda Vasconcelos Nascimento, Ana Karine Araújo Soares, Taciana Mirely Maciel Higino, George Tadeu Nunes Diniz, Valdênia Maria Oliveira Souza, Clarice Neuenschwander Lins de Morais, Virginia Maria Barros de Lorena
{"title":"Benzonidazole treatment has a beneficial effect on cells infected with the Colombian strain of Trypanosoma cruzi.","authors":"Leyllane Rafael Moreira,&nbsp;Kamila Kássia Dos Santos Oliveira,&nbsp;Diego José Lira Torres,&nbsp;Michelle da Silva Barros,&nbsp;Tiago Ribeiro de Arruda,&nbsp;Amanda Vasconcelos Nascimento,&nbsp;Ana Karine Araújo Soares,&nbsp;Taciana Mirely Maciel Higino,&nbsp;George Tadeu Nunes Diniz,&nbsp;Valdênia Maria Oliveira Souza,&nbsp;Clarice Neuenschwander Lins de Morais,&nbsp;Virginia Maria Barros de Lorena","doi":"10.1111/pim.12983","DOIUrl":"https://doi.org/10.1111/pim.12983","url":null,"abstract":"<p><p>Benznidazole (Bz) is the recommended drug for the treatment of Chagas disease; however, its efficacy may vary according to the sensitivity of Trypanosoma cruzi strains to the drug and host immune background. The study evaluated the immune response of peripheral blood mononuclear cells (PBMC) that were infected in vitro with the Colombian strain (Col) and treated with Bz. The co-cultures were incubated for 24 h, 5 and 10 days, where cytokine dosage was performed in the supernatant and evaluation of the cells for CD28<sup>+</sup> and CTLA-4<sup>+</sup> molecules in CD4<sup>+</sup> and CD8<sup>+</sup> lymphocytes, and CD80<sup>+</sup> , CD86<sup>+</sup> and HLA-DR<sup>+</sup> in CD14<sup>+</sup> cells. The results showed that Col induced a strong inflammatory response, with an increase in IFN-γ and TNF early in the infection (24 h), however, from 5 days of infection on, TNF production declined, and IL-10 production increased, which may be associated with a control mechanism of the exacerbated inflammatory response. The Bz treatment did not significantly alter the frequencies of the phenotypes evaluated both T cell subsets and CD14<sup>+</sup> cells. Therefore, this study reinforces the need for typing the patient's strain to guide therapy and promote individualized treatment protocols due to the heterogeneous genetic background among T. cruzi strains.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 6","pages":"e12983"},"PeriodicalIF":2.2,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9515887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Plasmodium infection and dysbiosis: A new paradigm in the host-parasite interaction. 疟原虫感染和生态失调:宿主-寄生虫相互作用的新范式。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-06-01 DOI: 10.1111/pim.12980
Nuning Winaris, Aulia Rahmi Pawestri, Syafiatul Azizah, Lustyafa Inassani Alifia, Rokhmatul Asiyah, Tita Rachma Ayuningtyas, Loeki Enggar Fitri, Teguh Wahju Sardjono
{"title":"Plasmodium infection and dysbiosis: A new paradigm in the host-parasite interaction.","authors":"Nuning Winaris,&nbsp;Aulia Rahmi Pawestri,&nbsp;Syafiatul Azizah,&nbsp;Lustyafa Inassani Alifia,&nbsp;Rokhmatul Asiyah,&nbsp;Tita Rachma Ayuningtyas,&nbsp;Loeki Enggar Fitri,&nbsp;Teguh Wahju Sardjono","doi":"10.1111/pim.12980","DOIUrl":"https://doi.org/10.1111/pim.12980","url":null,"abstract":"<p><p>The mucosal immune system contributes for the largest component of the tissue immune system due to its massive surface area and constant exposure to the microbiota. The gut microbiota comprises a complex micro-ecosystem in the intestine and plays a major role in regulating innate and adaptive immunity. Several studies revealed that infectious diseases involve bidirectional interactions in the gut microenvironment, including changes in the gut microbiota composition. During Plasmodium infection, an increase of pro-inflammatory cells in the lamina propria and a shift in the composition of the gut microbiota contribute to intestinal ecosystem dysbiosis. Although the mechanisms of this dysbiosis is still uncertain, it is thought to be associated with the sequestration of infected red blood cells in the intestinal microvascular system, leading to endothelial villous disruption, and thus activating effector immune cells scattered in the intestinal epithelium and lamina propria. This review provides information on this conjoint interaction which will be beneficial to modulate the host immune response in malaria through manipulation of the gut microbiota composition.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 6","pages":"e12980"},"PeriodicalIF":2.2,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9513702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Immunological interactions in helminths-SARS CoV-2 coinfection: Could old enemy be a friend today? 寄生虫- sars - CoV-2合并感染中的免疫相互作用:昔日的敌人今天会成为朋友吗?
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-05-01 DOI: 10.1111/pim.12982
Mohammed Alrouji, Hayder M Al-Kuraishy, Ali I Al-Gareeb, Heba Elhadad, Athanasios Alexiou, Marios Papadakis, Hanan A Ogaly, Ahmed M Elgazzar, Gaber El-Saber Batiha
{"title":"Immunological interactions in helminths-SARS CoV-2 coinfection: Could old enemy be a friend today?","authors":"Mohammed Alrouji,&nbsp;Hayder M Al-Kuraishy,&nbsp;Ali I Al-Gareeb,&nbsp;Heba Elhadad,&nbsp;Athanasios Alexiou,&nbsp;Marios Papadakis,&nbsp;Hanan A Ogaly,&nbsp;Ahmed M Elgazzar,&nbsp;Gaber El-Saber Batiha","doi":"10.1111/pim.12982","DOIUrl":"https://doi.org/10.1111/pim.12982","url":null,"abstract":"<p><p>Helminths are metazoan parasites affecting about one third of the worldwide population. Chronic helminth infections (CHIs) confer immunological tolerance to harmless and self-antigens mediated by regulatory T cells (Treg) that are up-regulated. In coronavirus disease 2019 (COVID-19), abnormal adaptive immune response and unrestrained innate immune response could result in local and systemic immune-mediated tissue damage. COVID-19 and CHIs establish complicated immune interactions due to SARS-CoV-2-induced immunological stimulation and CHIs-induced immunological tolerance. However, COVID-19 severity in patients with CHIs is mild, as immuno-suppressive anti-inflammatory cytokines counterbalance the risk of cytokine storm. Here, an overview of the interplay between helminths and COVID-19 severity is given. CHIs through helminth-derived molecules may suppress SARS-CoV-2 entry and associated hyperinflammation through attenuation of the TLR4/NF-kB signalling pathway. In addition, CHIs may reduce the COVID-19 severity by reducing the SARS-CoV-2 entry points at ACE2/DPP4/CD147 axis in the initial phase and immunomodulation in the late phase of the disease by suppressing TLR4/NF-kB signalling pathway.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 5","pages":"e12982"},"PeriodicalIF":2.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9459780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Human immune response against filarial HSP70 and its role in the diagnosis of lymphatic filariasis. 人对丝虫病HSP70的免疫反应及其在淋巴丝虫病诊断中的作用。
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-05-01 DOI: 10.1111/pim.12978
Faiyaz Ahmad, Eva Liebau, Sushma Rathaur
{"title":"Human immune response against filarial HSP70 and its role in the diagnosis of lymphatic filariasis.","authors":"Faiyaz Ahmad,&nbsp;Eva Liebau,&nbsp;Sushma Rathaur","doi":"10.1111/pim.12978","DOIUrl":"https://doi.org/10.1111/pim.12978","url":null,"abstract":"<p><p>A sensitive and specific diagnostic kit is crucial for the detection of human lymphatic filariasis at the early stage of infection as the existing diagnostic tools are inefficient and expensive. In the present study, we have cloned and expressed Brugia malayi HSP70 (BmHSP70) protein and characterized it as a potential antigen for diagnosis of the asymptomatic microfilariae stage of Wuchereria. bancrofti infection using ELISA, western blot, and bioinformatics tools. The antigenic efficacy of BmHSP70 was also compared with ScHSP70. The BmHSP70 and ScHSP70 peptide showed highly antigenic in nature and they showed immunogenic cross-reactivity endemic normal (EN) < chronic (CH) < microfilaraemic (MF) in IgG, IgG1, and IgG4 ELISA. IgG4-specific immunoblotting of BmHSP70 with MF sera further explicated its stage-specific antigenic cross-reactivity. These antigens (ScHSP70 and BmHSP70) showed a positive immunogenic correlation with the number of MF in blood samples. Thus, proposing BmHSP70 as a potential immunodiagnostic antigen against lymphatic filariasis. A triplet of GGMP tetrapeptide specific to the filarial HSP70 was also identified which was absent in human HSP70. In terms of sensitivity and specificity of antigens, these results suggest that recombinant BmHSP70 is a good antigen and could be used to diagnose early-stage of microfilariae infection.</p>","PeriodicalId":19931,"journal":{"name":"Parasite Immunology","volume":"45 5","pages":"e12978"},"PeriodicalIF":2.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9772808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CD193 (CCR3) expression by B cells correlates with reduced IgE production in paediatric schistosomiasis. 儿童血吸虫病B细胞CD193 (CCR3)表达与IgE产生减少相关
IF 2.2 4区 医学
Parasite Immunology Pub Date : 2023-05-01 DOI: 10.1111/pim.12979
I O Onkanga, H Sang, R Hamilton, B N Ondigo, W Jaoko, M R Odiere, L Ganley-Leal
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