{"id":5252,"date":"2023-10-26T10:17:13","date_gmt":"2023-10-26T17:17:13","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/mucocutaneous-barrier-to-prevent-ocular-and-respiratory-viral-infections\/"},"modified":"2024-01-08T11:36:55","modified_gmt":"2024-01-08T19:36:55","slug":"mucocutaneous-barrier-to-prevent-ocular-and-respiratory-viral-infections","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/mucocutaneous-barrier-to-prevent-ocular-and-respiratory-viral-infections\/","title":{"rendered":"Mucocutaneous barrier to prevent ocular and respiratory viral infections"},"content":{"rendered":"\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n  <div class=\"text-container\">\n              \n<div class=\"f--field f--eyebrow\">\n\n    \n  <span>Press Release<\/span>\n\n\n\n<\/div>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Mucocutaneous barrier to prevent ocular and respiratory viral infections<\/h1>\n\n\n<\/div>\n    \n    \n          <div class=\"meta\">\n        \n                  <span class=\"date\">October 26, 2023<\/span>\n              <\/div>\n    \n              \n<div class=\"f--field f--embed\">\n\n    \n  <div class=\"heateor_sss_sharing_container heateor_sss_horizontal_sharing\" data-heateor-ss-offset=\"0\" data-heateor-sss-href='https:\/\/keck.usc.edu\/news\/mucocutaneous-barrier-to-prevent-ocular-and-respiratory-viral-infections\/'><div class=\"heateor_sss_sharing_ul\"><a aria-label=\"Facebook\" class=\"heateor_sss_facebook\" href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fkeck.usc.edu%2Fnews%2Fmucocutaneous-barrier-to-prevent-ocular-and-respiratory-viral-infections%2F\" title=\"Facebook\" rel=\"nofollow noopener\" target=\"_blank\" style=\"font-size:32px!important;box-shadow:none;display:inline-block;vertical-align:middle\"><span 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11.903 5 10.826c0-1.08.382-1.993 1.146-2.738L8.128 6.12C8.873 5.372 9.785 5 10.864 5c1.087 0 2.004.382 2.75 1.146l2.777 2.79c.75.747 1.12 1.66 1.12 2.737 0 1.105-.392 2.045-1.183 2.817l1.186 1.186c.774-.79 1.708-1.186 2.805-1.186 1.078 0 1.995.377 2.75 1.132l2.804 2.804c.754.755 1.13 1.672 1.13 2.75z\"\/><\/svg><\/span><\/a><\/div><div class=\"heateorSssClear\"><\/div><\/div>\n\n\n<\/div>\n        \n  <\/div>\n\n  \n\n  <\/div><\/div>\n\n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text white\"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n        \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <figure id=\"attachment_5253\" aria-describedby=\"caption-attachment-5253\" style=\"width: 512px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Asante_Image.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5253\" src=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Asante_Image.jpg\" alt=\"Figure 1 HPBCD barrier prevents infection of SARS-CoV-2 Delta infection in K18-hACE2 mice and H1N1 infection in A549 lung epithelial cell line. Plasma biomarkers (Angiotensin I and Angiotensin II) correlates with the efficacy response observed in these models.\" width=\"512\" height=\"359\" srcset=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Asante_Image.jpg 512w, https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/Asante_Image-300x210.jpg 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><figcaption id=\"caption-attachment-5253\" class=\"wp-caption-text\">Figure 1 HPBCD barrier prevents infection of SARS-CoV-2 Delta infection in K18-hACE2 mice and H1N1 infection in A549 lung epithelial cell line. Plasma biomarkers (Angiotensin I and Angiotensin II) correlates with the efficacy response observed in these models.<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>Mucocutaneous membranes lining the eye and nasal cavity are susceptible sites of viral infections leading to conjunctivitis (pink eye) or respiratory infections whose total direct cost is estimated as $16 billion annually in the US. Traditional prevention approaches like vaccines and handwashing have not yielded much effectiveness due to poor compliance and emergence of variants. There is an urgent need to develop novel, accessible, easily administered, and effective mucous membrane-augmenting barrier that will be agnostic to all viral variants and protect the public from seasonal viruses and other pandemic-causing viruses like the coronaviruses.<\/p>\n<p>To address this challenge, our interdisciplinary team led by <a href=\"https:\/\/keck.usc.edu\/ophthalmology\/faculty\/isaac-asante\" target=\"_blank\" rel=\"noopener\">Dr. Isaac Asante<\/a> has been developing a novel eye drop and nasal spray that can speedily translate to clinic, providing a tremendous impact on preventing eye and respiratory infections from seasonal viruses. The group is repurposing a safe and FDA-approved pharmaceutical excipient, hydroxypropyl betacyclodextrin (HPBCD) for the development of this intervention.<\/p>\n<p>Dr. Asante\u2019s group recently showed the HPBCD nanobarrier prevents infection of lentiviruses, SARS-CoV-2 pseudotype variants, influenza viruses and SARS-CoV-2 viruses delta variant in in vitro models as well as SARS-CoV-2 viruses in mice models (Figure 1). This is an innovative and prophylactic intervention that will the first agnostic topical and physical barrier that will be noninvasive, widely accessible, easily administered, and acutely used to prevent eye and respiratory seasonal viral infections during pandemics and in densely populated \/ high-risk environments.<\/p>\n<p>Dr. Asante\u2019s team is one of the few leaders in this field of utilizing metabolomics to guide the development of therapeutic interventions in ophthalmology. If the ongoing efforts of Dr. Asante\u2019s team are successful, this intervention will impact several patients who suffer from pink eye and other respiratory viral infections.<\/p>\n\n\n\n<\/div>\n  <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":168,"featured_media":5253,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[21],"class_list":["post-5252","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-ophthalmology"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v26.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mucocutaneous barrier to prevent ocular and 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