{"id":2857,"date":"2018-12-11T00:01:16","date_gmt":"2018-12-10T14:01:16","guid":{"rendered":"https:\/\/wimr.org.au\/?post_type=wimr_news&#038;p=2857"},"modified":"2024-09-30T18:26:34","modified_gmt":"2024-09-30T08:26:34","slug":"new-research-how-hiv-survives-in-the-human-body","status":"publish","type":"news","link":"https:\/\/wimr.org.au\/news\/new-research-how-hiv-survives-in-the-human-body\/","title":{"rendered":"New research: how HIV survives in the human body"},"content":{"rendered":"<p class=\"lead\">New research has shown that HIV may survive in the human body \u2013 despite drug therapies \u2013 due to the multiplication of infected cells, rather than replication of the virus itself.<\/p>\n<p>Co-author of the study, Associate Professor Sarah Palmer from the Westmead Institute and the University of Sydney, said that understanding how HIV persists in the body is an important step towards developing a curative treatment.<\/p>\n<figure class=\"caption\">\n<p><figure style=\"width: 400px\" class=\"wp-caption alignright\"><img fetchpriority=\"high\" decoding=\"async\" src=\"\/wp-content\/uploads\/2024\/09\/HIV2.jpg\" alt=\"\" width=\"400\" height=\"300\" \/><figcaption class=\"wp-caption-text\">HIV is a virus able to attack and weaken the human immune system and can ultimately progress to AIDS.<\/figcaption><\/figure><\/figure>\n<p>\u201cCurrent therapies for HIV do not offer a cure, but they significantly prolong the lifespan of the person infected,\u201d Associate Professor Palmer said.<\/p>\n<p>\u201cWhen a person is infected with HIV, they must begin lifelong therapy because the virus is never fully eliminated from the body.<\/p>\n<p>\u201cInfected cells persist for decades, despite antiretroviral therapy. When drug therapy stops, HIV replication resumes within days and will ultimately progress to AIDS.<\/p>\n<p>\u201cNow that we better understand the survival mechanisms of HIV, we can work towards developing more effective treatments,\u201d she said.<\/p>\n<p>Antiretroviral therapy is used to stop the virus from replicating in people living with HIV, and it eliminates most infected cells.<\/p>\n<p>Yet, despite decades of treatment, some infected cells persist and are not cleared from the body.<\/p>\n<p>Last year, Associate Professor Palmer and her team \u2013 in a world-first breakthrough \u2013 \u00a0confirmed for the very first time that infectious HIV \u2018hides\u2019 in specific subsets of CD4+ immune memory T-cells to evade detection by the immune system.<\/p>\n<p>This latest research, led by Associate Professor Joshua Schiffer from the University of Washington, shows that it is the proliferation of these latently infected CD4+ immune memory T-cells that drive HIV persistence, allowing the virus to survive even during therapy.<\/p>\n<p>\u201cIt\u2019s not actually the virus that is reproducing.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"\/wp-content\/uploads\/2024\/09\/HIV-proliferation.jpg\" alt=\"\" width=\"700\" height=\"498\" \/><\/p>\n<p>\u201cIt is the latently infected cells that proliferate and repopulate declining number of HIV-infected cells,\u201d Associate Professor Palmer said.<\/p>\n<p>\u201cThis cellular proliferation sustains stable numbers of infected cells.<\/p>\n<p>\u201cTherefore, if we can stop these cells from multiplying, or purge the virus from these cells, we could reduce the size of the HIV reservoir.<\/p>\n<p>\u201cWe are now investigating the survival mechanisms of these cells as an ideal therapeutic target.<\/p>\n<p>\u201cMy dream is to find a properly curative treatment for the disease,\u201d Associate Professor Palmer concluded.<\/p>\n<p>The research is online by Nature Communication:\u00a0<a href=\"https:\/\/www.nature.com\/articles\/s41467-018-06843-5\" target=\"_blank\" rel=\"noopener\">https:\/\/www.nature.com\/articles\/s41467-018-06843-5<\/a><\/p>\n<p>The research team was led by Associate Professor Joshua Schiffer from the Fred Hutchison Cancer Center at the University of Washington.<\/p>\n<div class=\"article-end hidden-print\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>New research has shown that HIV may survive in the human body \u2013 despite drug therapies \u2013 due to the multiplication of infected cells, rather than replication of the virus itself. Co-author of the study, Associate Professor Sarah Palmer from the Westmead Institute and the University of Sydney, said that understanding how HIV persists in [&hellip;]<\/p>\n","protected":false},"featured_media":2858,"parent":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[19],"class_list":["post-2857","news","type-news","status-publish","has-post-thumbnail","hentry","category-cat-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/wimr.org.au\/wp-json\/wp\/v2\/news\/2857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wimr.org.au\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/wimr.org.au\/wp-json\/wp\/v2\/types\/news"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wimr.org.au\/wp-json\/wp\/v2\/media\/2858"}],"wp:attachment":[{"href":"https:\/\/wimr.org.au\/wp-json\/wp\/v2\/media?parent=2857"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wimr.org.au\/wp-json\/wp\/v2\/categories?post=2857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}