ImmunoHorizons最新文献

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Basophil Depletion Alters Host Immunity, Intestinal Permeability, and Mammalian Host-to-Mosquito Transmission in Malaria. 嗜碱性粒细胞耗竭改变宿主免疫、肠道通透性和哺乳动物疟疾宿主-蚊子传播。
ImmunoHorizons Pub Date : 2022-08-15 DOI: 10.4049/immunohorizons.2200055
Erinn L Donnelly, Nora Céspedes, Gretchen Hansten, Delaney Wagers, Anna M Briggs, Casey Lowder, Joseph Schauer, Sarah M Garrison, Lori Haapanen, Judy Van de Water, Shirley Luckhart
{"title":"Basophil Depletion Alters Host Immunity, Intestinal Permeability, and Mammalian Host-to-Mosquito Transmission in Malaria.","authors":"Erinn L Donnelly,&nbsp;Nora Céspedes,&nbsp;Gretchen Hansten,&nbsp;Delaney Wagers,&nbsp;Anna M Briggs,&nbsp;Casey Lowder,&nbsp;Joseph Schauer,&nbsp;Sarah M Garrison,&nbsp;Lori Haapanen,&nbsp;Judy Van de Water,&nbsp;Shirley Luckhart","doi":"10.4049/immunohorizons.2200055","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200055","url":null,"abstract":"<p><p>Malaria-induced bacteremia has been shown to result from intestinal mast cell (MC) activation. The appearance of MCs in the ileum and increased intestinal permeability to enteric bacteria are preceded by an early Th2-biased host immune response to infection, characterized by the appearance of IL-4, IL-10, mast cell protease (Mcpt)1 and Mcpt4, and increased circulating basophils and eosinophils. Given the functional similarities of basophils and MCs in the context of allergic inflammation and the capacity of basophils to produce large amounts of IL-4, we sought to define the role of basophils in increased intestinal permeability, in MC influx, and in the development of bacteremia in the context of malaria. Upon infection with nonlethal <i>Plasmodium yoelii yoelii</i> 17XNL, Basoph8 × ROSA-DTα mice or baso (-) mice that lack basophils exhibited increased intestinal permeability and increased ileal MC numbers, without any increase in bacterial 16S ribosomal DNA copy numbers in the blood, relative to baso (+) mice. Analysis of cytokines, chemokines, and MC-associated factors in the ileum revealed significantly increased TNF-α and IL-13 at day 6 postinfection in baso (-) mice compared with baso (+) mice. Moreover, network analysis of significantly correlated host immune factors revealed profound differences between baso (-) and baso (+) mice following infection in both systemic and ileal responses to parasites and translocated bacteria. Finally, basophil depletion was associated with significantly increased gametocytemia and parasite transmission to <i>Anopheles</i> mosquitoes, suggesting that basophils play a previously undescribed role in controlling gametocytemia and, in turn, mammalian host-to-mosquito parasite transmission.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":"6 8","pages":"581-599"},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9977168/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9633722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Functional Recognition Theory and Type 2 Immunity: Insights and Uncertainties. 功能识别理论与 2 型免疫:洞察力和不确定性。
ImmunoHorizons Pub Date : 2022-08-04 DOI: 10.4049/immunohorizons.2200002
Rod A Rahimi, Caroline L Sokol
{"title":"Functional Recognition Theory and Type 2 Immunity: Insights and Uncertainties.","authors":"Rod A Rahimi, Caroline L Sokol","doi":"10.4049/immunohorizons.2200002","DOIUrl":"10.4049/immunohorizons.2200002","url":null,"abstract":"<p><p>Type 2 immunity plays an important role in host defense against helminths and toxins while driving allergic diseases. Despite progress in understanding the biology of type 2 immunity, the fundamental mechanisms regulating the type 2 immune module remain unclear. In contrast with structural recognition used by pattern recognition receptors, type 2 immunogens are sensed through their functional properties. Functional recognition theory has arisen as the paradigm for the initiation of type 2 immunity. However, the vast array of structurally unrelated type 2 immunogens makes it challenging to advance our understanding of type 2 immunity. In this article, we review functional recognition theory and organize type 2 immunogens into distinct classes based on how they fit into the concept of functional recognition. Lastly, we discuss areas of uncertainty in functional recognition theory with the goal of providing a framework to further define the logic of type 2 immunity in host protection and immunopathology.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":"6 8","pages":"569-580"},"PeriodicalIF":0.0,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a5/6a/nihms-1868182.PMC9897289.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9552955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinical and Hematologic Effects of Endotoxin in Warts, Hypogammaglobulinemia, Infections, and Myelokathexis Syndrome Model Mice. 内毒素对疣、低γ球蛋白血症、感染和骨髓疏松综合征模型小鼠的临床和血液学影响。
ImmunoHorizons Pub Date : 2022-07-26 DOI: 10.4049/immunohorizons.2200042
Shamik Majumdar, Ji-Liang Gao, Sergio M Pontejo, Karl Balabanian, Françoise Bachelerie, Philip M Murphy
{"title":"Clinical and Hematologic Effects of Endotoxin in Warts, Hypogammaglobulinemia, Infections, and Myelokathexis Syndrome Model Mice.","authors":"Shamik Majumdar,&nbsp;Ji-Liang Gao,&nbsp;Sergio M Pontejo,&nbsp;Karl Balabanian,&nbsp;Françoise Bachelerie,&nbsp;Philip M Murphy","doi":"10.4049/immunohorizons.2200042","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200042","url":null,"abstract":"<p><p>Warts, hypogammaglobulinemia, infections, and myelokathexis (WHIM) syndrome immunodeficiency is caused by autosomal dominant gain-of-function CXCR4 mutations that promote severe panleukopenia caused by bone marrow retention of mature leukocytes. Consequently, WHIM patients develop recurrent bacterial infections; however, sepsis is uncommon. To study this clinical dichotomy, we challenged WHIM model mice with LPS. The LD<sub>50</sub> was similar in WHIM and wild-type (WT) mice, and LPS induced acute lymphopenia in WT mice that was <i>Cxcr4</i> independent. In contrast, in WHIM mice, LPS did not affect circulating T cell levels, but the B cell levels anomalously increased because of selective, cell-intrinsic, and <i>Cxcr4 WHIM allele-</i>dependent emergence of Cxcr4<sup>high</sup> late pre-B cells, a pattern that was phenocopied by <i>Escherichia coli</i> infection. In both WT and WHIM mice, the CXCR4 antagonist AMD3100 rapidly increased circulating lymphocyte levels that then rapidly contracted after subsequent LPS treatment. Thus, LPS-induced lymphopenia is CXCR4 independent, and a WHIM mutation does not increase clinical LPS sensitivity. Anomalous WT <i>Cxcr4</i>-independent, but <i>Cxcr4</i> WHIM-dependent, promobilizing effects of LPS on late pre-B cell mobilization reveal a distinct signaling pathway for the variant receptor.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":" ","pages":"543-558"},"PeriodicalIF":0.0,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40625531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RIP2 Contributes to Expanded CD4+ T Cell IFN-γ Production during Efferocytosis of Streptococcus pneumoniae-Infected Apoptotic Cells. RIP2在肺炎链球菌感染的凋亡细胞efferocysis过程中促进CD4+ T细胞IFN-γ的产生
ImmunoHorizons Pub Date : 2022-07-26 DOI: 10.4049/immunohorizons.2200001
Victoria Eugenia Niño-Castaño, Letícia de Aquino Penteado, Ludmilla Silva-Pereira, Júlia Miranda Ribeiro Bazzano, Allan Botinhon Orlando, Ana Carolina Guerta Salina, Naiara Naiana Dejani, Vânia L D Bonato, C Henrique Serezani, Alexandra Ivo Medeiros
{"title":"RIP2 Contributes to Expanded CD4<sup>+</sup> T Cell IFN-γ Production during Efferocytosis of <i>Streptococcus pneumoniae</i>-Infected Apoptotic Cells.","authors":"Victoria Eugenia Niño-Castaño,&nbsp;Letícia de Aquino Penteado,&nbsp;Ludmilla Silva-Pereira,&nbsp;Júlia Miranda Ribeiro Bazzano,&nbsp;Allan Botinhon Orlando,&nbsp;Ana Carolina Guerta Salina,&nbsp;Naiara Naiana Dejani,&nbsp;Vânia L D Bonato,&nbsp;C Henrique Serezani,&nbsp;Alexandra Ivo Medeiros","doi":"10.4049/immunohorizons.2200001","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200001","url":null,"abstract":"<p><p>Apoptotic cell clearance by professional and nonprofessional phagocytes in the process of efferocytosis is critical to preserve tissue homeostasis. Uptake of apoptotic cells by dendritic cells generates regulatory T cells and induces immunologic tolerance against self-antigens. In contrast, ingestion of infected apoptotic cells promotes activation of TLR4/MyD88-dependent bone marrow-derived dendritic cells (BMDCs) and triggers Th17 cell differentiation. In this study, we evaluated the impact of <i>Streptococcus pneumoniae</i>-infected apoptotic cell efferocytosis by BMDCs derived from C57BL/6 mice on differentiation and expansion of CD4<sup>+</sup> T cell subsets, as well as the role of TLR2/4 and receptor-interacting protein 2 (RIP2) receptors in recognizing intracellular pathogens during efferocytosis. We demonstrated that BMDC-mediated efferocytosis of <i>S. pneumoniae</i>-infected apoptotic cells induced Th1 cell differentiation and expansion. Although TLR2/4 and RIP2 deficiency in BMDCs did not affect Th1 cell differentiation during efferocytosis, the absence of RIP2 decreased IFN-γ production by CD4 T cells during the expansion phase. These findings suggest that RIP2-mediated IL-1β production during efferocytosis of <i>S. pneumoniae</i>-infected apoptotic cells partially supports a Th1-mediated IFN-γ production microenvironment.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":" ","pages":"559-568"},"PeriodicalIF":0.0,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40625532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Preferential Expansion of Foxp3+ T Regulatory Cells in CTLA-4-Deficient and CTLA-4-Haploinsufficient C57BL/6 Mice. Foxp3+ T调节细胞在ctla -4缺陷和ctla -4单倍不足C57BL/6小鼠中的优先扩增
ImmunoHorizons Pub Date : 2022-07-25 DOI: 10.4049/immunohorizons.2200049
William Stohl, Ning Yu, Ying Wu
{"title":"Preferential Expansion of Foxp3<sup>+</sup> T Regulatory Cells in CTLA-4-Deficient and CTLA-4-Haploinsufficient C57BL/6 Mice.","authors":"William Stohl,&nbsp;Ning Yu,&nbsp;Ying Wu","doi":"10.4049/immunohorizons.2200049","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200049","url":null,"abstract":"<p><p>Foxp3<sup>+</sup> cells and CTLA-4 have been ascribed major roles in downregulating immune responses. To address the relationship between CTLA-4 expression and Foxp3<sup>+</sup> cells, we generated littermate CTLA-4-sufficient (<i>Ctla4</i> <sup>+/+</sup>), CTLA-4-haploinsufficient (<i>Ctla4</i> <sup>+/-</sup>), and CTLA-4-deficient (<i>Ctla4</i> <sup>-/-</sup>) <i>Foxp3-gfp</i> knock-in C57BL/6 mice, permitting us to characterize the phenotype of Foxp3<sup>+</sup> cells and to test their ex vivo T regulatory (Treg) suppressor activity. CD3<sup>+</sup>, CD4<sup>+</sup>, and CD8<sup>+</sup> cells, but not CD19<sup>+</sup> cells, were markedly expanded in <i>Ctla4</i> <sup>-/-</sup> mice compared with <i>Ctla4</i> <sup>+/+</sup> or <i>Ctla4</i> <sup>+/-</sup> mice. In <i>Ctla4</i> <sup>-/-</sup> mice, the relative expansion of the Foxp3<sup>+</sup> population was greater than that of the CD3<sup>+</sup>, CD4<sup>+</sup>, or CD8<sup>+</sup> populations because of increased survival of Foxp3<sup>+</sup> cells. Foxp3<sup>+</sup> Treg cells from <i>Ctla4</i> <sup>-/-</sup> mice and Foxp3<sup>+</sup> Treg cells from <i>Ctla4</i> <sup>+/+</sup> mice exerted identical ex vivo suppressor function. This may be related to differential expression of GITR, CD73, and CD39 on Foxp3<sup>+</sup> Treg cells from <i>Ctla4</i> <sup>-/-</sup> mice versus that on corresponding cells from littermate <i>Ctla4</i> <sup>+/+</sup> or <i>Ctla4</i> <sup>+/-</sup> mice, with GITR and CD39 being upregulated and CD73 being downregulated on Foxp3<sup>+</sup> Treg cells from <i>Ctla4</i> <sup>-/-</sup> mice. Moreover, CTLA-4 expression in <i>Ctla4</i> <sup>+/+</sup>, <i>Ctla4</i> <sup>+/-</sup>, and <i>Ctla4</i> <sup>-/-</sup> mice correlated with their percentages of Foxp3<sup>+</sup> cells, suggesting an important role for CTLA-4 expression in Treg cell homeostasis. This may have vital ramifications for the treatment of patients for whom augmentation of suppressor function would be beneficial (e.g., patients with autoimmune diseases) and for whom diminution of suppressor function would be beneficial (e.g., patients with cancer).</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":" ","pages":"507-514"},"PeriodicalIF":0.0,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40537168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Inflammation Controls Susceptibility of Immune-Experienced Mice to Sepsis. 炎症控制免疫经验丰富的小鼠对败血症的易感性
ImmunoHorizons Pub Date : 2022-07-25 DOI: 10.4049/immunohorizons.2200050
Roger R Berton, Isaac J Jensen, John T Harty, Thomas S Griffith, Vladimir P Badovinac
{"title":"Inflammation Controls Susceptibility of Immune-Experienced Mice to Sepsis.","authors":"Roger R Berton, Isaac J Jensen, John T Harty, Thomas S Griffith, Vladimir P Badovinac","doi":"10.4049/immunohorizons.2200050","DOIUrl":"10.4049/immunohorizons.2200050","url":null,"abstract":"<p><p>Sepsis, an amplified immune response to systemic infection that leads to life-threatening organ dysfunction, affects >125,000 people/day worldwide with 20% mortality. Modest therapeutic progress for sepsis has been made, in part because of the lack of therapeutic translatability between mouse-based experimental models and humans. One potential reason for this difference stems from the extensive use of immunologically naive specific pathogen-free mice in preclinical research. To address this issue, we used sequential infections with well-defined BSL-2 pathogens to establish a novel immune-experienced mouse model (specific pathogen experienced [SPexp]) to determine the extent to which immunological experience and/or inflammation influences the host capacity to respond to subsequent infections, including sepsis. Consistent with their immunological experience, SPexp inbred or outbred mice had significant changes in the composition and activation status of multiple leukocyte populations known to influence the severity of cecal ligation and puncture-induced sepsis. Importantly, by varying the timing of sepsis induction, we found the level of basal inflammation controls sepsis-induced morbidity and mortality in SPexp mice. In addition, although a beneficial role of NK cells in sepsis was recently demonstrated in specific pathogen-free mice, NK cell depletion before cecal ligation and puncture induction in SPexp mice lead to diminished mortality, suggesting NK cells may have beneficial or detrimental roles in the response to septic insult dependent on host immune status. Thus, data highlight the importance of utilizing immune-experienced models for preclinical studies to interrogate the cellular/molecular mechanism(s) that could be therapeutically exploited during severe and dysregulated infection-induced inflammatory responses, such as sepsis.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":"6 7","pages":"528-542"},"PeriodicalIF":0.0,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9650784/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9193941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Common and Exclusive Features of Intestinal Intraepithelial γδ T Cells and Other γδ T Cell Subsets. 肠上皮内γδ T细胞和其他γδ T细胞亚群的共同和独特特征。
ImmunoHorizons Pub Date : 2022-07-25 DOI: 10.4049/immunohorizons.2200046
Apostol K Apostolov, Miriame Hamani, Hector Hernandez-Vargas, Ramdane Igalouzene, Alexandre Guyennon, Olivier Fesneau, Julien C Marie, Saïdi M'homa Soudja
{"title":"Common and Exclusive Features of Intestinal Intraepithelial γδ T Cells and Other γδ T Cell Subsets.","authors":"Apostol K Apostolov,&nbsp;Miriame Hamani,&nbsp;Hector Hernandez-Vargas,&nbsp;Ramdane Igalouzene,&nbsp;Alexandre Guyennon,&nbsp;Olivier Fesneau,&nbsp;Julien C Marie,&nbsp;Saïdi M'homa Soudja","doi":"10.4049/immunohorizons.2200046","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200046","url":null,"abstract":"<p><p>Murine peripheral lymph node TCR γδ T cells have been divided into type 1 and type 17 functional categories based on phenotypic and functional markers. Localized in the gut epithelial barrier, intestinal intraepithelial lymphocytes (iIEL) γδ T cells constitute a peculiar subset of T lymphocytes involved in intestinal homeostasis. However, whether iIEL γδ T cells obey the type 1/type 17 dichotomy is unclear. Using both global transcriptional signatures and expression of cell surface markers, we reveal that murine iIEL γδ T cells compose a distinct population, expressing ∼1000 specific genes, in particular genes that are responsible for cytotoxicity and regulatory functions. The expression of the transcription factor Helios is a feature of iIEL γδ T cells, distinguishing them from the other TCR γδ T subsets, including those present in the epithelia of other tissues. The marked expression of Helios is also shared by the other iIELs, TCRαβCD8αα lymphocytes present within the intestinal epithelium. Finally, we show that Helios expression depends in part on TGF-β signaling but not on the microbiota. Thus, our study proposes iIEL γδ T cells as a distinct subset and identifies novel markers to differentiate them from their peripheral counterparts.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":" ","pages":"515-527"},"PeriodicalIF":0.0,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40537167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ingested (Oral) Adrenocorticotropic Hormone Inhibits IL-17 in the Central Nervous System in the Mouse Model of Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis. 摄入(口服)促肾上腺皮质激素抑制多发性硬化症和实验性自身免疫性脑脊髓炎小鼠中枢神经系统IL-17
ImmunoHorizons Pub Date : 2022-07-22 DOI: 10.4049/immunohorizons.2200023
Landon J Dittel, Bonnie N Dittel, Staley A Brod
{"title":"Ingested (Oral) Adrenocorticotropic Hormone Inhibits IL-17 in the Central Nervous System in the Mouse Model of Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis.","authors":"Landon J Dittel,&nbsp;Bonnie N Dittel,&nbsp;Staley A Brod","doi":"10.4049/immunohorizons.2200023","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200023","url":null,"abstract":"<p><p>Experimental autoimmune encephalomyelitis (EAE) is an inflammatory autoimmune disease of the CNS that resembles multiple sclerosis and provides a useful animal model for the evaluation of mechanisms of action for potential immunomodulatory therapies. We have previously shown that oral adrenocorticotropic hormone (ACTH) decreased IL-17 in the gut lamina propria and the spleen and increased CD4<sup>+</sup> Foxp3<sup>+</sup> T regulatory cells and IL-10 in the spleen during EAE in the C57BL/6 mouse. However, we did not investigate the specific cellular alterations of proinflammatory and anti-inflammatory factors in the CNS. The aim was to determine if oral ACTH would have a similar clinical effect on inflammatory cytokines in the gut and define specific cellular effects in the CNS in an alternative strain of mice. SJL/J mice were immunized with proteolipid protein peptide 138-151 and gavaged with scrambled ACTH (scrambled α-melanocyte-stimulating hormone) or ACTH 1-39 during ongoing disease. Ingested (oral) ACTH attenuated ongoing clinical EAE disease, decreased IL-6 production, and increased T regulatory cells in the lamina propria and decreased CD4<sup>+</sup> and γδ IL-17 production in the CNS. Ingested ACTH attenuated EAE clinical disease by decreasing IL-6 in the gut-associated lymphoid tissue and decreasing IL-17 in the CNS.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":"6 7","pages":"497-506"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10394754/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9924526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Piecing Complement Together with LEGO Bricks: Impacts on Interest, Confidence, and Learning in the Immunology Classroom. 用乐高积木拼凑补体:对免疫学课堂兴趣、信心和学习的影响。
ImmunoHorizons Pub Date : 2022-07-22 DOI: 10.4049/immunohorizons.2200040
Suzanne S Bohlson, Joshua J Baty, Mallary C Greenlee-Wacker, Heather A Bruns
{"title":"Piecing Complement Together with LEGO Bricks: Impacts on Interest, Confidence, and Learning in the Immunology Classroom.","authors":"Suzanne S Bohlson,&nbsp;Joshua J Baty,&nbsp;Mallary C Greenlee-Wacker,&nbsp;Heather A Bruns","doi":"10.4049/immunohorizons.2200040","DOIUrl":"https://doi.org/10.4049/immunohorizons.2200040","url":null,"abstract":"<p><p>Teaching and learning complex molecular cascades can often be challenging. In immunology, students struggle to visualize immunological processes, such as activation of the complement system, which involves three separate cascades leading to multiple effector functions. Offering learning activities that use tangible modeling can help students learn conceptually difficult content by fostering a visual understanding of concepts, as well as instill confidence and interest in the material. In this article, we describe a learning activity using LEGO bricks that demonstrates the activation of the classical, lectin, and alternative complement pathways and formation of the membrane attack complex. In both an introductory and advanced immunology course, we investigated the effect of the activity on student learning and subject confidence. Performance on examination questions about complement demonstrated that the LEGO activity improved learning in a naive student population (students in introductory immunology), but not in a previously informed student population (students in advanced immunology). In addition, self-reported confidence in the content was significantly higher in students who completed the LEGO activity in the advanced course, but not the introductory course, compared with those who did not do the activity. Students in both courses who did the activity had a positive perception of the activity, with a majority of students reporting that they enjoyed the activity and had more interest in the complement system.</p>","PeriodicalId":13448,"journal":{"name":"ImmunoHorizons","volume":" ","pages":"488-496"},"PeriodicalIF":0.0,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40616388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Gut Microbiota-Derived Unconventional T Cell Ligands: Contribution to Host Immune Modulation. 肠道微生物衍生的非常规T细胞配体:对宿主免疫调节的贡献。
ImmunoHorizons Pub Date : 2022-07-22 DOI: 10.4049/immunohorizons.2200006
Sungwhan F Oh, Da-Jung Jung, Eungyo Choi
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引用次数: 4
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