{"id":2609,"date":"2024-02-06T16:38:32","date_gmt":"2024-02-06T15:38:32","guid":{"rendered":"https:\/\/connected-pathology.com\/?p=2609"},"modified":"2024-02-06T16:39:52","modified_gmt":"2024-02-06T15:39:52","slug":"evaluation-of-therapeutic-antibodies-ex-vivo-in-neurodegenerative-disease-research","status":"publish","type":"post","link":"https:\/\/connected-pathology.com\/?p=2609","title":{"rendered":"Histopathology Techniques: Evaluation of Therapeutic Antibodies Ex Vivo in Neurodegenerative Disease Research"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.20.2&#8243; _module_preset=&#8221;default&#8221; da_disable_devices=&#8221;off|off|off&#8221; global_colors_info=&#8221;{}&#8221; da_is_popup=&#8221;off&#8221; da_exit_intent=&#8221;off&#8221; da_has_close=&#8221;on&#8221; da_alt_close=&#8221;off&#8221; da_dark_close=&#8221;off&#8221; da_not_modal=&#8221;on&#8221; da_is_singular=&#8221;off&#8221; da_with_loader=&#8221;off&#8221; da_has_shadow=&#8221;on&#8221;][et_pb_row _builder_version=&#8221;4.20.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.20.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.20.2&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">The therapeutic potential of antibodies was discovered based on experiments evaluating serum from animals exposed to attenuated forms of pathogens. Since then, an enormous progress has been made in our understanding and designing of therapeutic antibodies or antibody-like pharmaceuticals (biologics such as antibody-like proteins).\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">Currently, monoclonal antibodies or antibody-like pharmaceuticals are used and developed for multiple indications ranging from cancer, autoimmune disorders, respiratory disorders, inflammatory and infectious disorders to neurodegenerative disorders such as Alzheimer\u2019s disease (AD) and Parkinson\u2019s disease (PD).\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">During the discovery and preclinical phases of drug development, the selection of lead candidate therapeutic antibodies to progress into efficacy studies can be based on multitude biophysical and functional assays. In this blog post, we discuss how histopathology can be used to evaluate the binding of multiple lead therapeutic antibody candidates to help select optimal leads going into the preclinical efficacy stage of drug development.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b><span data-contrast=\"auto\">Application of therapeutic antibodies in neurodegenerative disease research\u00a0<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">The histopathological hallmarks of AD are extracellular plaques composed of amyloid beta fibrils and intracellular inclusions of the protein Tau. The accumulation of amyloid beta plaques is hypothesized to play a central role in AD pathophysiology.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">PD is characterized by specific histopathological hallmarks observed in post-mortem brain tissue, including the presence of intracellular inclusions called Lewy bodies, consisting of the protein alpha-synuclein, and cell death in the substantia nigra. Alpha-synuclein inclusions are the main histopathological hallmark correlating with clinical symptoms of not only PD, but also other synucleinopathies such as dementia with Lewy bodies, and multiple systems atrophy.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">As such, the histopathological hallmarks of neurodegenerative disease represent a viable target for therapeutic antibodies. Reference of all developed therapeutic antibodies using in neurodegenerative research and their targets can be accessed <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5771054\/\">here.<\/a><\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5771054\/\"><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/a><\/p>\n<p style=\"text-align: justify;\"><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b><span data-contrast=\"auto\">Evaluation of antibody-target binding ex vivo in neurodegenerative disease research <\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h3>\n<p style=\"text-align: justify;\"><span data-contrast=\"none\">Therapeutic antibody-target binding can be evaluated using ex-vivo histopathology binding assays that make use of healthy and diseased human brain tissues, as well as mouse models. This offers a quick and effective method to evaluate the antibody candidates\u2019 binding potential on tissues with the relevant human pathophysiology (e.g., human brain slices with amyloid beta plaques compared to healthy human brain slices), while also evaluating any off-target binding of the therapeutic antibody candidates. For example, off-target binding <\/span><span data-contrast=\"auto\">will show up as unspecific off-target signal, which will help inform further studies to optimise the antibody binding\u2019s specificity. Evaluation of antibody-target binding ex vivo usually further informs the selection of lead candidates to advance to the efficacy stage of preclinical research using mouse models of neurodegenerative diseases.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b><span data-contrast=\"auto\">Outsourcing antibody binding vivo assays to histopathology service providers<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">Outsourcing antibody binding ex vivo histopathology assays to contract research organisations (CROs) can be beneficial for multiple reasons, which we outline in this section.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Access to relevant human tissues: <\/span><\/b><span data-contrast=\"auto\">histopathology CROs either possess or have readily access to human tissue biobanks via established strategic partnerships. This provides advantage, such as that brain tissues and\/or frozen brain tissue slides can be readily and easily sourced and selected depending on the relevant target pathophysiology such as disease stage, severity, donors\u2019 age etc,..\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"2\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Expertise and experience in custom assay development: <\/span><\/b><span data-contrast=\"auto\">Every therapeutic antibody has a unique structure; hence each project needs careful customisation and extensive IHC\/ IF protocol development and optimisation stages to ensure reliable results. Optimisation of the detection antibody concentration, selection of proper positive and negative controls such as isotype controls are used. Experts at Connected-Pathology have experience and expertise in setting up customised assays for detection of various targets and applications.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"3\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Expertise and evaluation of the results: <\/span><\/b><span data-contrast=\"auto\">The evaluation of the staining intensity, binding of the antibody to the pathology of interest and cellular localisation needs to be carefully evaluated to determine the antibody binding on the pathology of interest i.e., does the therapeutic antibody bind to amyloid beta plaques? Knowledge of the target antigen biology permits better interpretation of results.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"4\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">High-volume sample processing capabilities and technical processing: <\/span><\/b><span data-contrast=\"auto\">Histopathology service providers have access and necessary capabilities to run high-volume studies thanks to automated sample processing and staining capabilities using state-of-the-art machinery.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"5\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Access to digital histopathology slides: <\/span><\/b><span data-contrast=\"auto\">digitalised slides offer superior quality which is especially important when evaluating the signal from fluorescent staining images (both simple and multiplex). High-quality digitalised whole-image slides can be used in publications and\/or supporting company documentation of further study designs.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul style=\"text-align: justify;\">\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"1\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" aria-setsize=\"-1\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-contrast=\"auto\">Advice on future projects: <\/span><\/b><span data-contrast=\"auto\">collaboration with histopathology CROs such as Conencted-Pathology allows you to discuss your results with experts and obtain advice on future projects or can inform the next steps of the project. Such type of collaborations can inform the next steps of the projects such as initiating an efficacy study in a relevant mouse model with the target pathology (i.e., transgenic or seeding neurodegeneration mouse models). Connected-Pathology has an established partnership with its sister company InnoSer, who frequently carries out efficacy studies in mouse models of neurodegeneration.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559685&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span data-contrast=\"auto\">Contact us to further inquire about outsourcing such type of study to Connected-Pathology. Experts at Connected-Pathology work together with you to develop and optimise relevant protocols to help you obtain the most relevant results for your research to accelerate the pace at which your project progresses at.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335551550&quot;:6,&quot;335551620&quot;:6,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.20.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.20.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_button button_url=&#8221;https:\/\/connected-pathology.com\/contact\/&#8221; button_text=&#8221;Contact Us&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;-25px|||||&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The therapeutic potential of antibodies was discovered based on experiments evaluating serum from animals exposed to attenuated forms of pathogens. Since then, an enormous progress has been made in our understanding and designing of therapeutic antibodies or antibody-like pharmaceuticals (biologics such as antibody-like proteins).\u00a0\u00a0 Currently, monoclonal antibodies or antibody-like pharmaceuticals are used and developed for [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":2611,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<!-- wp:divi\/placeholder \/-->","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Evaluation of Therapeutic Antibodies Ex Vivo - Connected-Pathology<\/title>\n<meta name=\"description\" content=\"Therapeutic antibody-target binding can be evaluated using ex-vivo histopathology binding assays that make use of diseased human tissue.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/connected-pathology.com\/?p=2609\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Evaluation of Therapeutic Antibodies Ex Vivo - 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