{"id":23043,"date":"2019-11-22T08:30:34","date_gmt":"2019-11-22T08:30:34","guid":{"rendered":"https:\/\/wames.org.uk\/cms-english\/?p=23043"},"modified":"2020-05-07T07:56:19","modified_gmt":"2020-05-07T07:56:19","slug":"me-cfs-as-a-hyper-regulated-immune-system-driven-by-an-interplay-between-regulatory-t-cells-chronic-human-herpesvirus-infections","status":"publish","type":"post","link":"https:\/\/wames.org.uk\/cms-english\/me-cfs-as-a-hyper-regulated-immune-system-driven-by-an-interplay-between-regulatory-t-cells-chronic-human-herpesvirus-infections\/","title":{"rendered":"ME\/CFS as a hyper-regulated immune system driven by an interplay between regulatory T cells &#038; chronic human herpesvirus infections"},"content":{"rendered":"<p><a href=\"http:\/\/www.frontiersin.org\/articles\/10.3389\/fimmu.2019.02684\/full?\" target=\"_blank\" rel=\"noopener noreferrer\">Myalgic Encephalomyelitis\/Chronic Fatigue Syndrome as a hyper-regulated immune system driven by an interplay between regulatory T cells and chronic human herpesvirus infections<\/a>, by Nuno Sep\u00falveda,\u00a0 Jorge Carneiro,\u00a0 Eliana M Lacerda and\u00a0 Luis C Nacul <span style=\"text-decoration: underline;\">in<\/span> <em>Front. Immunol<\/em>. 21 Nov 2019 [https:\/\/doi.org\/10.3389\/fimmu.2019.02684]<\/p>\n<p>&nbsp;<\/p>\n<h3><strong>Hypothesis &amp; theory article abstract:<\/strong><\/h3>\n<div id=\"attachment_23211\" style=\"width: 304px\" class=\"wp-caption alignright\"><a href=\"https:\/\/wames.org.uk\/cms-english\/me-cfs-as-a-hyper-regulated-immune-system-driven-by-an-interplay-between-regulatory-t-cells-chronic-human-herpesvirus-infections\/cross-regulation-treg\/\" rel=\"attachment wp-att-23211\"><img data-recalc-dims=\"1\" decoding=\"async\" aria-describedby=\"caption-attachment-23211\" class=\"size-medium wp-image-23211 lazyload\" data-src=\"https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/11\/cross-regulation-Treg.jpg?resize=294%2C300&#038;ssl=1\" alt=\"\" width=\"294\" height=\"300\" data-srcset=\"https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/11\/cross-regulation-Treg.jpg?resize=294%2C300&amp;ssl=1 294w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/11\/cross-regulation-Treg.jpg?resize=147%2C150&amp;ssl=1 147w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/11\/cross-regulation-Treg.jpg?resize=768%2C783&amp;ssl=1 768w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/11\/cross-regulation-Treg.jpg?w=828&amp;ssl=1 828w\" data-sizes=\"(max-width: 294px) 100vw, 294px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 294px; --smush-placeholder-aspect-ratio: 294\/300;\" \/><\/a><p id=\"caption-attachment-23211\" class=\"wp-caption-text\">Conceptual scheme of the cross-regulation model<\/p><\/div>\n<p>Autoimmunity and chronic viral infections are recurrent clinical observations in Myalgic Encephalomyelitis\/Chronic Fatigue Syndrome (ME\/CFS), a complex disease with an unknown cause.<\/p>\n<p>Given these observations, the regulatory <a href=\"https:\/\/en.wikipedia.org\/wiki\/Regulatory_T_cell\" target=\"_blank\" rel=\"noopener noreferrer\">CD4+ T cells<\/a> (Tregs) show promise to be good candidates for the underlying pathology due to their known capacity to suppress the immune responses not only to body components but also against infections. Here we discussed the overlooked role of these cells in the chronicity of Human Herpes Virus 6 (HHV6), Herpes Simplex 1 (HSV1) and Epstein-Barr virus (EBV), as often reported as triggers of ME\/CFS.<\/p>\n<p>Using simulations of the Cross-regulation model for the dynamics of Tregs, we illustrated that mild infections might lead to a chronically activated immune responses under control of Tregs if the responding clone has a high autoimmune potential. Such infections promote persistent inflammation and possibly fatigue.<\/p>\n<p>We then hypothesized that ME\/CFS is a condition characterized by a predominance of this type of infections under control of Tregs. In contrast, healthy individuals are hypothesized to trigger immune responses of a virus-specific clone with a low autoimmune potential.<\/p>\n<p>According to this hypothesis, simple <a href=\"https:\/\/en.wikipedia.org\/wiki\/Scientific_modelling\" target=\"_blank\" rel=\"noopener noreferrer\">model simulations<\/a> of the CD4+ T-cell repertoire could reproduce the increased density and percentages of Tregs observed in patients suffering from the disease when compared to healthy controls. A deeper analysis of Tregs in the pathogenesis of ME\/CFS will help to assess the validity of this hypothesis.<\/p>\n<p><a href=\"http:\/\/simmaronresearch.com\/2020\/05\/immune-battle-chronic-fatigue-syndrome-herpesviruses-regulatory-t-cell\/\" target=\"_blank\" rel=\"noopener noreferrer\">A Never-Ending Immune Battle in ME\/CFS? The Regulatory T-cell \/ Herpesvirus Hypothesis<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Myalgic Encephalomyelitis\/Chronic Fatigue Syndrome as a hyper-regulated immune system driven by an interplay between regulatory T cells and chronic human herpesvirus infections, by Nuno Sep\u00falveda,\u00a0 Jorge Carneiro,\u00a0 Eliana M Lacerda and\u00a0 Luis C Nacul in Front. Immunol. 21 Nov 2019 &hellip; <a href=\"https:\/\/wames.org.uk\/cms-english\/me-cfs-as-a-hyper-regulated-immune-system-driven-by-an-interplay-between-regulatory-t-cells-chronic-human-herpesvirus-infections\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[558,5378,3425,3529,220,835,982,5377,4986,1046,1047,19],"class_list":["post-23043","post","type-post","status-publish","format-standard","hentry","category-news","tag-autoimmunity","tag-cd4-t-cells","tag-dr-luis-nacul","tag-eliana-m-lacerda","tag-hhv-6","tag-human-herpes-virus-6","tag-hypothesis","tag-jorge-carneiro","tag-nuno-sepulveda","tag-tcells","tag-tregs","tag-viral-infections"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5qkYK-5ZF","_links":{"self":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts\/23043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/comments?post=23043"}],"version-history":[{"count":6,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts\/23043\/revisions"}],"predecessor-version":[{"id":25893,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts\/23043\/revisions\/25893"}],"wp:attachment":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/media?parent=23043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/categories?post=23043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/tags?post=23043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}