{"id":59869,"date":"2022-06-30T13:48:59","date_gmt":"2022-06-30T11:48:59","guid":{"rendered":"https:\/\/aktuelles.uni-frankfurt.de\/?p=59869"},"modified":"2023-02-17T12:53:00","modified_gmt":"2023-02-17T11:53:00","slug":"how-bacteria-adhere-to-cells-basis-for-the-development-of-a-new-class-of-antibiotics","status":"publish","type":"post","link":"https:\/\/aktuelles.uni-frankfurt.de\/en\/english\/how-bacteria-adhere-to-cells-basis-for-the-development-of-a-new-class-of-antibiotics\/","title":{"rendered":"How bacteria adhere to cells: Basis for the development of a new class of antibiotics"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2022\/06\/beitragsbild_Bartonella_henselae.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"650\" height=\"450\" src=\"https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2022\/06\/beitragsbild_Bartonella_henselae.jpg\" alt=\"\" class=\"wp-image-59867\" srcset=\"https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2022\/06\/beitragsbild_Bartonella_henselae.jpg 650w, https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2022\/06\/beitragsbild_Bartonella_henselae-300x208.jpg 300w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/a><figcaption>Adhesion of <em>Bartonella henselae<\/em> (blue) to human blood vessel cells (red). The bacterium\u2019s adhesion to the host cells could be blocked with the help of what are known as \u201canti-ligands\u201d.<br>(<a href=\"https:\/\/www.mdpi.com\/2075-4418\/11\/7\/1259\" target=\"_blank\" rel=\"noreferrer noopener\">Photo Credit<\/a>)<\/figcaption><\/figure>\n\n\n\n<p><strong>Researchers from University Hospital Frankfurt and Goethe University Frankfurt have unravelled how bacteria adhere to host cells and thus taken the first step towards developing a new class of antibiotics.<\/strong><\/p>\n\n\n\n<p>The adhesion of bacteria to host cells is always the first and one of the decisivesteps in the development of infectious diseases. The purpose of this adhesion by infectious pathogens is first to colonize the host organism (i.e., the human body), and then to trigger an infection, which in the worst case can end fatally. Precise understanding of the bacteria\u2019s adhesion to host cells is a key to finding therapeutic alternatives that block this critical interaction in the earliest possible stage of an infection.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Critical interaction with the human protein fibronectin<\/strong><\/h4>\n\n\n\n<p>In collaboration with other researchers, scientists from University Hospital Frankfurt and Goethe University Frankfurt have now explained the exact bacterial adhesion mechanism using the human-pathogenic bacterium <em>Bartonella henselae<\/em>. This pathogen causes \u201ccat-scratch disease\u201d, a disease transmitted from animals to humans. In an international collaborative project led by the Frankfurt research group headed by Professor Volkhard Kempf, the bacterial adhesion mechanism was deciphered with the help of a combination of in-vitro adhesion tests and high-throughput proteomics. Proteomics is the study of all the proteins present in a cell or a complex organism.<\/p>\n\n\n\n<p>The scientists have shed light on a key mechanism: the bacterial adhesion to the host cells can be traced back to the interaction of a certain class of adhesins \u2013 called \u201ctrimeric autotransporter adhesins\u201d \u2013 with fibronectin, a protein often found in human tissue. Adhesins are components on the surface of bacteria which enable the pathogen to adhere to the host\u2019s biological structures. Homologues of the adhesin identified here as critical are also present in many other human-pathogenic bacteria, such as the multi-resistant <em>Acinetobacter baumannii<\/em>, which the World Health Organization (WHO) has classified as the top priority for research into new antibiotics.<\/p>\n\n\n\n<p>State-of-the-art protein analytics were used to visualize the exact points of interaction between the proteins. In addition, it was possible to show that experimental blocking of these processes almost entirely prevents bacterial adhesion. Therapeutic approaches that aim to prevent bacterial adhesion in this way could represent a promising treatment alternative as a new class of antibiotics (known as \u201canti-ligands\u201d) in the constantly growing domain of multi-resistant bacteria.<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Prestigious funding<\/strong><\/h4>\n\n\n\n<p>The research work was funded as part of an Innovative Training Network (\u201cViBrANT: Viral and Bacterial Adhesin Network Training\u201d) under the Marie Sk\u0142odowska-Curie Actions (MSCA) of the European Union\u2019s HORIZON 2020 research and innovation programme.<\/p>\n\n\n\n<p>The scientific paper has been published in the prestigious journal \u201cMicrobiology Spectrum\u201d of the American Society of Microbiology (ASM) and was acknowledged as \u201cPaper of the Month\u201d by the German Society for Hygiene and Microbiology (DGHM) on 18 June 2022.<\/p>\n\n\n\n<p class=\"has-background\" style=\"background-color:#eeeeee\"><strong>Publication: <\/strong>Vaca, D. J., Thibau, A., Leisegang, M. S., Malmstr\u00f6m, J., Linke, D., Eble, J. A., Ballhorn, W., Schaller, M., Happonen, L., Kempf, V. A. J.; <strong>Interaction of Bartonella henselae with Fibronectin Represents the Molecular Basis for Adhesion to Host Cells<\/strong>; Microbiology Spectrum, 18 April, 2022. <a href=\"https:\/\/doi.org\/10.1128\/spectrum.00598-22\">https:\/\/doi.org\/10.1128\/spectrum.00598-22<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Researchers from University Hospital Frankfurt and Goethe University Frankfurt have unravelled how bacteria adhere to host cells and thus taken the first step towards developing a new class of antibiotics. [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":59867,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":""},"categories":[126,254],"tags":[247],"post_folder":[],"class_list":["post-59869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-english","category-research","tag-medicine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How bacteria adhere to cells: Basis for the development of a new class of antibiotics | Aktuelles aus der Goethe-Universit\u00e4t Frankfurt<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aktuelles.uni-frankfurt.de\/en\/english\/how-bacteria-adhere-to-cells-basis-for-the-development-of-a-new-class-of-antibiotics\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How bacteria adhere to cells: Basis for the development of a new class of antibiotics | Aktuelles aus der Goethe-Universit\u00e4t Frankfurt\" \/>\n<meta property=\"og:description\" content=\"Researchers from University Hospital Frankfurt and Goethe University Frankfurt have unravelled how bacteria adhere to host cells and thus taken the first step towards developing a new class of antibiotics. 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