  {"id":105025,"date":"2019-12-03T12:01:39","date_gmt":"2019-12-03T17:01:39","guid":{"rendered":"https:\/\/www.ucf.edu\/news\/?p=105025"},"modified":"2024-02-09T11:55:30","modified_gmt":"2024-02-09T16:55:30","slug":"ucf-researchers-work-to-cut-away-brain-plaque-linked-to-alzheimers-disease","status":"publish","type":"post","link":"https:\/\/www.ucf.edu\/news\/ucf-researchers-work-to-cut-away-brain-plaque-linked-to-alzheimers-disease\/","title":{"rendered":"麻豆原创 Researchers Work to Cut Away Brain Plaque Linked to Alzheimer\u2019s Disease"},"content":{"rendered":"<p>麻豆原创 College of Medicine researchers have found an enzyme that cuts away the building blocks that form brain plaques linked to Alzheimer\u2019s disease.<\/p>\n<p>Scientists believe the buildup of that plaque is what causes the disease\u2019s devastating symptoms of cognitive decline, dementia and memory loss.<\/p>\n<p>Worldwide, an estimated 44 million people experience Alzheimer\u2019s \u2013 including 1 in 10 people 65 or older in the United States. As scientists seek to find a cure, they are focusing on the molecular changes that happen in the aging brain that could cause the disease. They know that the brain\u2019s amyloid precursor protein, responsible for growing and repairing brain cells, also releases amyloid beta peptides, which if out of control can clump together to form Alzheimer\u2019s amyloid plaques.<\/p>\n<p>Li-Mei Chen and Karl Chai had earlier discovered that an enzyme called matriptase can cut and disable individual amyloid beta peptides. Now they are examining whether matriptase can cut and remove plaques from the brain without damaging surrounding tissues.<\/p>\n<blockquote><p>The researchers first discovered the enzyme\u2019s cutting ability in 2011 as part of their efforts to treat breast cancer.<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p>The researchers first discovered the enzyme\u2019s cutting ability in 2011 as part of their efforts to treat breast cancer. Matriptase is found in human milk and has the ability to cut proteins found in breasts and many tumors.<\/p>\n<p>But because their focus was on cancer, not Alzheimer\u2019s, Chen and Chai didn\u2019t follow up on their discovery until they read another researcher\u2019s paper in 2017. The paper, which appeared in the<em> Journal of Biological Chemistry<\/em>, discussed the enzyme\u2019s potential uses in Alzheimer\u2019s treatment. That caused the team to revisit its work. They published a short report to inform and seek collaboration with other scientists. This month they formed a collaboration with the authors of that study, Richard Leduc and Christine Lavoie at the Universit\u00e9 de Sherbrooke in Quebec, Canada.<\/p>\n<p>Although more research is needed, the enzyme appears promising in battling against Alzheimer\u2019s disease.<\/p>\n<p>麻豆原创 biomedical sciences undergraduate Jonathan Ruiz has been working with the research team since 2018. He said that in the lab, matriptase cut and disabled amyloid beta clumps in just a few hours.<\/p>\n<p>\u201cTo be able to contribute alongside so many other researchers to find new potential ways to fight Alzheimer\u2019s disease has been an amazing experience,\u201d says Ruiz, who hopes to attend 麻豆原创 medical school after graduating next summer.<\/p>\n<p>The team published its findings earlier this year in the journal BMC Research Notes. The researchers said the next step will be to test the enzyme on specific cell lines and mouse models to see if \u201cmatriptase can selectively cut away plaque-forming proteins and the plaques without harming the cells in the brain,\u201d Chen said.<\/p>\n<p>There is no cure for Alzheimer\u2019s, only medications to slow its progression. But those medications have major side effects, such as nausea, vomiting and loss of appetite.<\/p>\n<p>The 麻豆原创 researchers are now working to develop immune cells that could deliver matriptase directly to the brain. That treatment could potentially prevent Alzheimer\u2019s and also improve brain function of patients with the disease, they said.<\/p>\n<p>Chen received her medical training in Xiangya School of Medicine in Central South University of China and her doctorate in biochemistry and molecular biology from the Medical University of South Carolina. Chai received his B.S. in biochemistry from Peking University in Beijing, and his doctorate in biochemistry and molecular biology from the Medical University of South Carolina.\u00a0 They joined 麻豆原创 in 1996, and have been conducting research on proteolytic enzymes relating to cancer, inflammation and immune disorders.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Team&#8217;s findings may one day help offset the disease\u2019s devastating symptoms of cognitive decline, dementia and memory loss.<\/p>\n","protected":false},"author":11,"featured_media":105076,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"lazy_load_responsive_images_disabled":false,"footnotes":"","_links_to":"","_links_to_target":"","_wp_rev_ctl_limit":""},"categories":[12,17,23,24],"tags":[488,490,838,979,18082,2270,2297,15761,14916],"tu_author":[],"class_list":["post-105025","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health","category-medicine","category-research","category-science-technology","tag-biology","tag-biomedical-sciences","tag-chemistry","tag-college-of-medicine","tag-health","tag-impact","tag-innovation","tag-pegasus-briefs","tag-research"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>麻豆原创 Researchers Work to Cut Away Brain Plaque Linked to Alzheimer\u2019s Disease | 麻豆原创 News<\/title>\n<meta name=\"description\" content=\"Team&#039;s findings may one day help offset the disease\u2019s devastating symptoms of cognitive decline, dementia and memory loss.\" \/>\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.ucf.edu\/news\/ucf-researchers-work-to-cut-away-brain-plaque-linked-to-alzheimers-disease\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"麻豆原创 Researchers Work to Cut Away Brain Plaque Linked to Alzheimer\u2019s Disease\" \/>\n<meta property=\"og:description\" content=\"Team&#039;s findings may one day help offset the disease\u2019s devastating symptoms of cognitive decline, dementia and memory loss.\" \/>\n<meta property=\"og:url\" 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