{"id":9390,"date":"2024-09-29T22:58:38","date_gmt":"2024-09-29T19:58:38","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=9390"},"modified":"2026-04-20T18:55:26","modified_gmt":"2026-04-20T15:55:26","slug":"proteomics-from-protein-profiles-to-clinical-solutions","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/proteomics-from-protein-profiles-to-clinical-solutions\/","title":{"rendered":"Proteomics: from protein profiles to clinical solutions"},"content":{"rendered":"<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;9390&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1766&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.8&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;4.8\\\/5 - (1766 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;\u041f\u0440\u043e\u0442\u0435\u043e\u043c\u0456\u043a\u0430: \u0432\u0456\u0434 \u0431\u0456\u043b\u043a\u043e\u0432\u0438\u0445 \u043f\u0440\u043e\u0444\u0456\u043b\u0456\u0432 \u0434\u043e \u043a\u043b\u0456\u043d\u0456\u0447\u043d\u0438\u0445 \u0440\u0456\u0448\u0435\u043d\u044c&quot;,&quot;width&quot;:&quot;136.7&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 136.7px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            4.8\/5 - (1766 votes)    <\/div>\n    <\/div>\n<p class=\"\" data-start=\"467\" data-end=\"828\">Proteomics is the science that studies the proteome, that is, the set of all proteins synthesized by a cell, organ, or organism at a particular point in time. It is a dynamic information system that changes under the influence of environmental conditions, diseases, medications, or stress. It is these changes that provide the key to understanding the mechanisms of diseases, their early diagnosis, and the choice of therapy.<\/p>\n<h2 class=\"\" data-start=\"830\" data-end=\"887\">From genes to proteins: why the proteome is more important in the clinic<\/h2>\n<p class=\"\" data-start=\"889\" data-end=\"1126\">While the genome is a permanent structure that reflects hereditary information, the proteome reflects <strong data-start=\"988\" data-end=\"1018\">real cell activity<\/strong>. It determines which proteins are produced, in what quantities, what their activity is, and how they interact.<\/p>\n<p class=\"\" data-start=\"1128\" data-end=\"1270\">Professor Lyudmila Andrusenko, a molecular biologist, notes:<br data-start=\"1203\" data-end=\"1206\" \/><strong data-start=\"1206\" data-end=\"1269\">\u00ab&quot;The genome says what could be. The proteome shows what actually is&quot;\u00bb<\/strong>.<\/p>\n<h2 class=\"\" data-start=\"1272\" data-end=\"1320\">Proteomics in medicine: four key directions<\/h2>\n<p class=\"\" data-start=\"1322\" data-end=\"1563\"><strong data-start=\"1322\" data-end=\"1363\">1. <a href=\"https:\/\/medilab.km.ua\/en\/biomarkers-of-disease-new-era-of-precision-medicine\/\">Biomarkers for early diagnosis<\/a><\/strong><br data-start=\"1363\" data-end=\"1366\" \/>Proteins that change their concentration in the early stages of the disease are used as markers. For example, an increase in troponin levels is one of the main diagnostic criteria for myocardial infarction.<\/p>\n<p class=\"\" data-start=\"1565\" data-end=\"1764\"><strong data-start=\"1565\" data-end=\"1597\">2. Assessment of treatment dynamics<\/strong><br data-start=\"1597\" data-end=\"1600\" \/>Proteomics allows us to identify how the protein profile changes under the influence of drugs. This is important when monitoring chemotherapy, antibiotic therapy, and hormonal treatment.<\/p>\n<p class=\"\" data-start=\"1766\" data-end=\"1951\"><strong data-start=\"1766\" data-end=\"1795\">3. Personalization of therapy<\/strong><br data-start=\"1795\" data-end=\"1798\" \/>The individual characteristics of the patient&#039;s protein profile are taken into account when choosing drugs, dosage, and duration of the course. This is the basis of precision pharmacology.<\/p>\n<p class=\"\" data-start=\"1953\" data-end=\"2144\"><strong data-start=\"1953\" data-end=\"1980\">4. Development of new drugs<\/strong><br data-start=\"1980\" data-end=\"1983\" \/>Proteomics makes it possible to identify target proteins \u2014 key links in pathogenesis that can be inhibited or activated using pharmacological agents.<\/p>\n<h2 class=\"\" data-start=\"2146\" data-end=\"2176\">How proteomic analysis works<\/h2>\n<p class=\"\" data-start=\"2178\" data-end=\"2212\">The process consists of the following stages:<\/p>\n<ul data-start=\"2214\" data-end=\"2495\">\n<li class=\"\" data-start=\"2214\" data-end=\"2280\">\n<p class=\"\" data-start=\"2216\" data-end=\"2280\">sample preparation (plasma, serum, tissues, cell lines);<\/p>\n<\/li>\n<li class=\"\" data-start=\"2281\" data-end=\"2301\">\n<p class=\"\" data-start=\"2283\" data-end=\"2301\">protein extraction;<\/p>\n<\/li>\n<li class=\"\" data-start=\"2302\" data-end=\"2332\">\n<p class=\"\" data-start=\"2304\" data-end=\"2332\">separation of protein fractions;<\/p>\n<\/li>\n<li class=\"\" data-start=\"2333\" data-end=\"2399\">\n<p class=\"\" data-start=\"2335\" data-end=\"2399\">identification using mass spectrometry or protein chips;<\/p>\n<\/li>\n<li class=\"\" data-start=\"2400\" data-end=\"2420\">\n<p class=\"\" data-start=\"2402\" data-end=\"2420\">quantitative analysis;<\/p>\n<\/li>\n<li class=\"\" data-start=\"2421\" data-end=\"2495\">\n<p class=\"\" data-start=\"2423\" data-end=\"2495\">bioinformatic comparison with databases of normal and pathological proteomes.<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2497\" data-end=\"2555\">Depending on the study, the following technologies are used:<\/p>\n<ul data-start=\"2557\" data-end=\"2777\">\n<li class=\"\" data-start=\"2557\" data-end=\"2613\">\n<p class=\"\" data-start=\"2559\" data-end=\"2613\">LC-MS\/MS (liquid chromatography with mass spectrometry);<\/p>\n<\/li>\n<li class=\"\" data-start=\"2614\" data-end=\"2626\">\n<p class=\"\" data-start=\"2616\" data-end=\"2626\">MALDI-TOF;<\/p>\n<\/li>\n<li class=\"\" data-start=\"2627\" data-end=\"2654\">\n<p class=\"\" data-start=\"2629\" data-end=\"2654\">iTRAQ (isobaric labeling);<\/p>\n<\/li>\n<li class=\"\" data-start=\"2655\" data-end=\"2693\">\n<p class=\"\" data-start=\"2657\" data-end=\"2693\">SWATH-MS (wideband scanning);<\/p>\n<\/li>\n<li class=\"\" data-start=\"2694\" data-end=\"2732\">\n<p class=\"\" data-start=\"2696\" data-end=\"2732\">SILAC (labeled cell cultivation);<\/p>\n<\/li>\n<li class=\"\" data-start=\"2733\" data-end=\"2777\">\n<p class=\"\" data-start=\"2735\" data-end=\"2777\">Western blot for validation of individual proteins.<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9392\" src=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905.jpeg\" alt=\"Computer visualization of protein interactions\" width=\"1200\" height=\"507\" srcset=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905.jpeg 1200w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905-150x63.jpeg 150w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905-600x254.jpeg 600w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905-300x127.jpeg 300w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905-1024x433.jpeg 1024w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/05\/0905-768x324.jpeg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2 class=\"\" data-start=\"2779\" data-end=\"2813\">Example: proteomics in oncology<\/h2>\n<p class=\"\" data-start=\"2815\" data-end=\"3049\">Mass spectrometry was used in a patient with suspected ovarian cancer. The protein profile revealed increased expression of the HE4 protein. This allowed us to clarify the diagnosis and prescribe targeted therapy taking into account the sensitivity of the tumor tissue.<\/p>\n<p class=\"\" data-start=\"3051\" data-end=\"3166\"><strong data-start=\"3051\" data-end=\"3064\">Result<\/strong>: chemotherapy was more effective, with fewer side effects than with standard treatment.<\/p>\n<h2 class=\"\" data-start=\"3168\" data-end=\"3201\">Proteomics and chronic diseases<\/h2>\n<p class=\"\" data-start=\"3203\" data-end=\"3486\">Studies of type 2 diabetes have shown that even before clinical signs appear, patients&#039; blood levels of certain proteins, including apolipoproteins and iron transport proteins, change. This opens up the possibility <strong data-start=\"3413\" data-end=\"3442\">preclinical screening<\/strong>, when the glucose level does not yet exceed the norm.<\/p>\n<h2 class=\"\" data-start=\"3488\" data-end=\"3534\">Clinical implementation: benefits and barriers<\/h2>\n<p class=\"\" data-start=\"3536\" data-end=\"3549\"><strong data-start=\"3536\" data-end=\"3549\">Advantages:<\/strong><\/p>\n<ul data-start=\"3551\" data-end=\"3706\">\n<li class=\"\" data-start=\"3551\" data-end=\"3583\">\n<p class=\"\" data-start=\"3553\" data-end=\"3583\">accuracy and sensitivity of methods;<\/p>\n<\/li>\n<li class=\"\" data-start=\"3584\" data-end=\"3612\">\n<p class=\"\" data-start=\"3586\" data-end=\"3612\">objectivity of results;<\/p>\n<\/li>\n<li class=\"\" data-start=\"3613\" data-end=\"3660\">\n<p class=\"\" data-start=\"3615\" data-end=\"3660\">high informativeness in complex cases;<\/p>\n<\/li>\n<li class=\"\" data-start=\"3661\" data-end=\"3706\">\n<p class=\"\" data-start=\"3663\" data-end=\"3706\">the possibility of studying individual reactions.<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"3708\" data-end=\"3720\"><strong data-start=\"3708\" data-end=\"3720\">Barriers:<\/strong><\/p>\n<ul data-start=\"3722\" data-end=\"3927\">\n<li class=\"\" data-start=\"3722\" data-end=\"3761\">\n<p class=\"\" data-start=\"3724\" data-end=\"3761\">high cost of equipment and tests;<\/p>\n<\/li>\n<li class=\"\" data-start=\"3762\" data-end=\"3835\">\n<p class=\"\" data-start=\"3764\" data-end=\"3835\">the difficulty of interpreting results without a multidisciplinary approach;<\/p>\n<\/li>\n<li class=\"\" data-start=\"3836\" data-end=\"3874\">\n<p class=\"\" data-start=\"3838\" data-end=\"3874\">the need for standardization of protocols;<\/p>\n<\/li>\n<li class=\"\" data-start=\"3875\" data-end=\"3927\">\n<p class=\"\" data-start=\"3877\" data-end=\"3927\">lack of widespread awareness among practicing physicians.<\/p>\n<\/li>\n<\/ul>\n<h2 class=\"\" data-start=\"3929\" data-end=\"3961\">Proteomics beyond medicine<\/h2>\n<p class=\"\" data-start=\"3963\" data-end=\"4207\">Proteomics is actively used in veterinary medicine, pharmaceuticals, the food industry (protein quality control), agrobiotechnologies (determination of stress resistance in plants), forensics, and ecology (monitoring of pollution biomarkers).<\/p>","protected":false},"excerpt":{"rendered":"<p>Proteomics is the science that studies the proteome, that is, the set of all proteins synthesized by a cell, organ, or organism at a particular moment.<\/p>","protected":false},"author":627,"featured_media":9391,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9390","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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