{"id":23924,"date":"2023-05-10T16:15:23","date_gmt":"2023-05-10T10:30:23","guid":{"rendered":"https:\/\/www.revoscience.com\/en\/?p=23924"},"modified":"2023-05-10T16:15:25","modified_gmt":"2023-05-10T10:30:25","slug":"new-drug-delivery-system-delivers-an-antioxidant-directly-to-liver-mitochondria","status":"publish","type":"post","link":"https:\/\/www.revoscience.com\/en\/new-drug-delivery-system-delivers-an-antioxidant-directly-to-liver-mitochondria\/","title":{"rendered":"New drug delivery system delivers an antioxidant directly to liver mitochondria"},"content":{"rendered":"\n
\"\"
Damage to the liver induced by acetaminophen (dotted blue outlines) is almost completely mitigated by CoQ10-MITO-Porter (right), compared to the effect of phosphate buffered saline (left) and direct administration of CoQ10(center). (Mitsue Hibino, et al. Scientific Reports. May 10, 2023).<\/em><\/figcaption><\/figure>\n\n\n\n

Mitochondria are microscopic organelles found within cells, and are well-known as the \u201cpowerhouse of the cell.\u201d They are by far the largest producer of the molecule adenosine triphosphate (ATP), which provides energy to many processes in living cells. <\/p>\n\n\n\n

The process by which mitochondria synthesize ATP generates a large number of reactive oxygen species (ROS), chemical groups that are highly reactive.\u00a0<\/p>\n\n\n\n

In a healthy cell, the ROS is controlled by the mitochondria; however, when this balance is lost, the excess ROS damages the mitochondria and subsequently cells and tissues. This phenomenon, known as oxidative stress, can cause premature aging and disease. The ROS that causes oxidative stress can be controlled by antioxidants.<\/p>\n\n\n\n

\"\"<\/figure>
\n

CoQ10-MITO-Porter (green sphere with red and blue protrusions) is taken up by liver cells (hepatocytes) and targets mitochondria. The delivery of CoQ10 reduces the excess ROS produced by mitochondria and thus reduces oxidative stress. (Mitsue Hibino, et al. Scientific Reports. May 10, 2023).<\/em><\/p>\n<\/div><\/div>\n\n\n\n

A research team led by Professor Yuma Yamada, Distinguished Professor Hideyoshi Harashima, and Assistant Professor Mitsue Hibino at Hokkaido University has developed a system to deliver antioxidants to mitochondria to mitigate the effects of excess ROS. Their findings were published in\u00a0Scientific Reports.<\/p>\n\n\n\n

\u201cWe previously developed a drug delivery system which we named CoQ10-MITO-Porter,\u201d explained Hibino. \u201cThis system consists of the antioxidant molecule Coenzyme Q10\u00a0(CoQ10)\u2014which is also required by mitochondria for ATP production\u2014encapsulated by a lipid nanoparticle that would target mitochondria. In this study, we aimed to test if this system could work in living organisms.\u201d<\/p>\n\n\n\n

Variations of the formula for the synthesis of CoQ10-MITO-Porter were tested, and their structures were examined with electron microscopy. CoQ10-MITO-Porter was administered to mice models with acetaminophen-induced liver damage. <\/p>\n\n\n\n

Acetaminophen overdoses cause excess ROS in mitochondria, which in turn damages cells in the liver. CoQ10-MITO-Porter was transported primarily to the liver and measurably reduced the damage caused by ROS. <\/p>\n\n\n\n

A further discovery was that downsized CoQ10-MITO-Porter particles with more efficient packaging of CoQ10\u00a0were more effective at treating liver damage than the original formulation.<\/p>\n\n\n\n

\u201cOur study has shown that the MITO-Porter system we developed can be used to deliver CoQ10\u00a0to the liver, making it an important therapeutic strategy against conditions that cause oxidative stress,\u201d concluded Yamada. \u201cOur future work will focus on elucidating the mechanism responsible for the therapeutic effect of CoQ10.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

Researchers have developed a system to deliver antioxidants to mitochondria to mitigate the effects of excess ROS. <\/p>\n","protected":false},"author":2,"featured_media":23931,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,17],"tags":[],"class_list":["post-23924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health","category-research"],"featured_image_urls":{"full":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",1024,388,false],"thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-200x200.jpg",200,200,true],"medium":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-675x256.jpg",675,256,true],"medium_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-768x291.jpg",750,284,true],"large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-675x256.jpg",675,256,true],"1536x1536":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",1024,388,false],"2048x2048":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",1024,388,false],"ultp_layout_landscape_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",1024,388,false],"ultp_layout_landscape":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-870x388.jpg",870,388,true],"ultp_layout_portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-600x388.jpg",600,388,true],"ultp_layout_square":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-600x388.jpg",600,388,true],"newspaper-x-single-post":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-760x388.jpg",760,388,true],"newspaper-x-recent-post-big":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-550x360.jpg",550,360,true],"newspaper-x-recent-post-list-image":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1-95x65.jpg",95,65,true],"web-stories-poster-portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",640,243,false],"web-stories-publisher-logo":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",96,36,false],"web-stories-thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2023\/05\/CoQ10-MITO-Porter1.jpg",150,57,false]},"author_info":{"info":["RevoScience"]},"category_info":"Health<\/a> Research<\/a>","tag_info":"Research","comment_count":"0","_links":{"self":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/23924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/comments?post=23924"}],"version-history":[{"count":0,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/23924\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media\/23931"}],"wp:attachment":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media?parent=23924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/categories?post=23924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/tags?post=23924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}