{"id":356,"date":"2014-05-09T12:41:20","date_gmt":"2014-05-09T10:41:20","guid":{"rendered":"http:\/\/news.embl.de\/?p=356"},"modified":"2024-07-22T14:21:39","modified_gmt":"2024-07-22T12:21:39","slug":"immune-cells-use-steroids","status":"publish","type":"post","link":"https:\/\/www.embl.org\/news\/science\/immune-cells-use-steroids\/","title":{"rendered":"How immune cells use steroids"},"content":{"rendered":"\n

If you\u2019ve ever used a steroid, for example cortisone cream on eczema, you\u2019ll have seen first-hand how efficient steroids are at suppressing the immune response. Normally, when your body senses that immune cells have finished their job, it produces steroids \u2013but which cells actually do that? In this latest study, scientists looked at Th2 immune cells during parasitic infection and saw that at a certain point, these cells produce a steroid called pregnenolone.<\/p>\n\n\n\n

\u201cWe were really surprised to see that these immune cells are producing a steroid. In cell culture, we see that the steroids play a part in regulating T cell proliferation,\u201d says Bidesh Mahata in the Teichmann group<\/a> at EMBL-EBI and Sanger, who designed the study. \u201cWe had already seen that T-helper cells were producing steroids, but initially we were blind \u2013 what was going on?\u201d<\/p>\n\n\n\n

\u201cBecause we had access to data from single-cell sequencing experiments, we could conduct deep statistical analyses on a very large and comprehensive dataset,\u201d explains Teichmann. \u201cThat pointed us to the genes involved in pregnenolone production at the point when Th2 cells are being produced, and we could deduce that the Th2 cells themselves were involved in immunosuppression.\u201d<\/p>\n\n\n\n

We were really surprised to see that these immune cells are producing a steroid.<\/p><\/blockquote>\n\n\n\n

The researchers suggest that bringing the immune system back into balance is an intrinsic part of this particular immune response.<\/p>\n\n\n\n

\u201cWe confirmed our findings experimentally, showing that pregnenolone inhibits both Th cell proliferation and B cell immunoglobulin class switching,\u201d adds Mahata. \u201cWe think this points to the idea that Th2 cells differentiate into steroid-producing cells as part of a larger mechanism to bring the immune system back into balance.\u201d<\/p>\n\n\n\n

The findings from this study are strengthened by those of the Gelfand group <\/a>at National Jewish Health in Denver, US. The next step for the Genome Campus group is to figure out how the process starts, what other tissues are involved and which types of infection give rise to this response.<\/p>\n\n\n\n

The study was initiated at the MRC Laboratory for Molecular Biology and followed through at the Wellcome Trust Sanger Institute and EMBL-EBI, with steroid profiling conducted by researchers at the University of Birmingham. The work was supported by a European Research Council grant (ThSWITCH) and Lister Research Prize to Sarah Teichmann.<\/p>\n\n\n\n

This post was originally published on EMBL-EBI News.<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Genome Campus researchers discover that some immune cells turn themselves off by producing a steroid.<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2,17591],"tags":[28,64,782,36,41,32,1748],"embl_taxonomy":[],"class_list":["post-356","post","type-post","status-publish","format-standard","hentry","category-science","category-science-technology","tag-bioinformatics","tag-cell-biology","tag-database","tag-embl-ebi","tag-genetics","tag-health","tag-press-release"],"acf":{"article_intro":"

Researchers at the European Bioinformatics Institute (EMBL-EBI) and the Wellcome Trust Sanger Institute have discovered that some immune cells turn themselves off by producing a steroid. The findings, published in\u00a0Cell Reports, have implications for the study of cancers, autoimmune diseases and parasitic infections.<\/p>\n","related_links":[{"link_description":"","link_url":""}],"article_sources":[{"source_description":"

Mahata\u00a0et al. Cell Reports<\/em>, 22 May 2014. DOI: 10.1016\/j.celrep.2014.04.011.<\/p>\n","source_link_url":"http:\/\/www.cell.com\/cell-reports\/abstract\/S2211-1247(14)00298-8"}],"vf_locked":false,"featured":false,"color":"#007B53","show_featured_image":false,"in_this_article":false,"youtube_url":"","mp4_url":"","video_caption":"","translations":false,"press_contact":"EMBL Generic","field_target_display":"embl","field_article_language":{"value":"english","label":"English"},"source_article":false,"article_translations":false,"languages":""},"embl_taxonomy_terms":[],"yoast_head":"\nHow immune cells use steroids | EMBL<\/title>\n<meta name=\"description\" content=\"Genome Campus researchers discover that some immune cells turn themselves off by producing a steroid.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.embl.org\/news\/science\/immune-cells-use-steroids\/\" \/>\n<meta property=\"og:locale\" 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\/>\n\t<meta property=\"og:image:height\" content=\"783\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Mary Todd Bergman\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@EMBLEBI\" \/>\n<meta name=\"twitter:site\" content=\"@embl\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mary Todd Bergman\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\/\/www.embl.org\/news\/science\/immune-cells-use-steroids\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.embl.org\/news\/science\/immune-cells-use-steroids\/\"},\"author\":{\"name\":\"Mary Todd 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