{"id":469339,"date":"2024-02-02T15:58:00","date_gmt":"2024-02-02T14:58:00","guid":{"rendered":"https:\/\/innovationorigins.com\/?p=469339"},"modified":"2024-02-02T15:58:00","modified_gmt":"2024-02-02T14:58:00","slug":"less-invasive-for-patients-using-blood-tests-to-diagnose-lung-cancer","status":"publish","type":"post","link":"https:\/\/ioplus.nl\/archive\/en\/less-invasive-for-patients-using-blood-tests-to-diagnose-lung-cancer\/","title":{"rendered":"Less invasive for patients: using blood tests to diagnose lung cancer"},"content":{"rendered":"\n<p>When lung cancer is suspected, a \u2018morsel\u2019 of tissue is removed and examined under the microscope. This may change in the future. During her PhD research, Sylvia Roovers-Genet examined proteins in the blood of people with, without, and with possible lung cancer, thereby developing a method to demonstrate the presence of lung cancer through blood tests. This method can be developed in the future, to make it suitable for predicting lung cancer.<\/p>\n\n\n\n<p>Even at the start of her PhD at the Department of Biomedical Engineering,\u00a0<a rel=\"noreferrer noopener\" href=\"https:\/\/www.tue.nl\/en\/research\/researchers\/sylvia-roovers-genet\" target=\"_blank\">Sylvia Roovers-Genet<\/a>\u00a0knew she would be deliberately working towards a clinical application. Not surprising either when you consider that she conducted her research in close collaboration with colleagues at the Catharina Hospital and the M\u00e1xima Medical Center in Eindhoven\/Veldhoven. The goal was to look for characteristic proteins (markers) in the blood of lung cancer patients.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/assets.w3.tue.nl\/w\/fileadmin\/_processed_\/d\/0\/csm_Genet_Sylvia_BMT_VH_9235_PhD_a5781ad690.jpg\" alt=\"\"\/><figcaption class=\"wp-element-caption\">Sylvia Roovers-Genet. \u00a9 Vincent van den Hoogen<\/figcaption><\/figure>\n\n\n\n<p>Roovers: \u201cIt is important to know that people often talk about lung cancer as if it were one disease, when in fact there are many different forms. Each has its treatment and approach. So, for a lung specialist, it is crucial to know exactly which variant he or she is dealing with.\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Current approach<\/strong><\/h2>\n\n\n\n<p>\u201cCurrently, there is a gold standard for determining whether someone has lung cancer. If suspected, the first step is a scan, such as CT or PET CT. That gives insight into where the symptoms may be coming from and the location of possible cancer cells or a tumor.&#8221;<\/p>\n\n\n\n<p>The second step is a biopsy. \u201cTo be sure that it is cancer and not some other condition, a biopsy of lung tissue is now the only way to provide certainty. But evidence of tumor cells cannot always be obtained. Sometimes people are too old or too sick and the biopsy itself is too risky for their health. And sometimes people refuse to undergo the procedure.\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Looking for a new method<\/strong><\/h2>\n\n\n\n<p>\u201cThat\u2019s why we started looking for a method that is much less invasive for patients. Blood sampling is much less painful and risky. Especially for the high-risk lung cancer group, where smoking and age are the main risk factors,\u201d Roovers says.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/assets.w3.tue.nl\/w\/fileadmin\/_processed_\/1\/7\/csm_iStock-1263560609_07ddc920d4.jpg\" alt=\"\"\/><figcaption class=\"wp-element-caption\">Technician performing blood test in research laboratory. \u00a9 iStock\/Merovingian<\/figcaption><\/figure>\n\n\n\n<p>For the study, it was important to at least examine blood from three groups of people: with, without, and with possible lung cancer. \u201cAs many as six Dutch hospitals cooperated in the study by asking patients if they wanted to participate when they came to the pulmonologist with suspected lung cancer. Relevant patient data were then recorded and their blood was examined to ascertain the proteins.\u201d<\/p>\n\n\n\n<p>In the end, more than a thousand people participated in the study. Because of the size of that group, the results from Roovers\u2019 doctoral research are very reliable. For example, it was interesting to see that in thirteen percent of patients, the current gold standard could not conclusively determine whether or not these patients had lung cancer. For these patients, blood tests might offer a solution in the future.<\/p>\n\n\n\n<figure class=\"wp-block-image alignleft is-resized\"><img decoding=\"async\" src=\"https:\/\/assets.w3.tue.nl\/w\/fileadmin\/_processed_\/1\/d\/csm_iStock-520665143_1bab0aa318.jpg\" alt=\"\" width=\"-174\" height=\"-260\"\/><figcaption class=\"wp-element-caption\">Computed tomography (CT) of the thoracic. Monochrome photo. Image: iStock\/Sudok1<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Protein analysis to demonstrate lung cancer<\/h2>\n\n\n\n<p>The patient survey provided a huge database that Roovers and fellow researchers were able to work with. \u201cWe developed new detection methods for quantifying two promising lung cancer protein tumor markers based on liquid chromatography-tandem mass spectrometry (LC-MS\/MS). This is a method that looks at the weight of proteins in the blood and thus recognizes tumor markers.\u201d<\/p>\n\n\n\n<p>\u201cThis allowed us to detect these markers even at very low concentrations in the blood of patients with lung cancer. The new methods can help in follow-up studies to find out whether LC-MS\/MS-based detection can also add value in clinical practice in the hospital compared to current methods,\u201d says Roovers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Step closer to the GP surgery<\/strong><\/h2>\n\n\n\n<p>To facilitate the step to the hospital, or clinical practice, Roovers and colleagues developed not only the diagnostic method but also a decision algorithm for GPs. \u201cIt\u2019s not one marker that you have to pay attention to as a GP but a combination of factors. That\u2019s why we help GPs correctly interpret blood test results according to our method. We can now use our method, based on blood tests, to be able to say with at least 95 percent certainty for two-thirds of patients that they have lung cancer.\u201d<\/p>\n\n\n\n<p>Asked about the practical application, Roovers still exercises restraint. \u201cWe have now scientifically proven that lung cancer can be demonstrated in blood. The next step is always a validation study in practice. That is being set up and taken up by a collaboration of TU\/e, Catharina Hospital and M\u00e1xima Medical Center.\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>A jab at the GP surgery?<\/strong><\/h2>\n\n\n\n<p>And after that? Just go to the doctor and get a blood test to find out whether you have lung cancer? \u201cWho knows,\u201d Roovers smiles. \u201cBut it&#8217;s not that far off for now. Make no mistake, lung cancer is unfortunately still very deadly. After five years, only 19 percent of people with lung cancer are still alive. So, it would be great to detect precisely these forms of cancer earlier, so they can be better treated.\u201d<\/p>\n\n\n\n<p><em>Title of Sylvia Roovers-Genet&#8217;s dissertation:&nbsp;<\/em><a href=\"https:\/\/research.tue.nl\/en\/publications\/lung-cancer-protein-tumor-markers-development-validation-and-clin\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Lung cancer protein tumor markers: Development, validation and clinical use of quantitative serum tumor marker assays.<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When lung cancer is suspected, a \u2018morsel\u2019 of tissue is removed and examined under the microscope. This may change in the future. During her PhD research, Sylvia Roovers-Genet examined proteins in the blood of people with, without, and with possible lung cancer, thereby developing a method to demonstrate the presence of lung cancer through blood [&hellip;]<\/p>\n","protected":false},"author":2589,"featured_media":506601,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[34665],"tags":[83320,21785,132],"location":[6763],"article_type":[36684],"serie":[],"archives":[],"internal_archives":[],"reboot-archive":[82868],"class_list":["post-469339","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health","tag-lung-cancer","tag-tu-eindhoven","tag-tue","location-netherlands","article_type-news","reboot-archive-bio"],"blocksy_meta":[],"acf":{"subtitle":"\"People often talk about lung cancer as if it were one disease, when in fact there are many different forms. Each has its treatment and approach.\"","text_display_homepage":false},"author_meta":{"display_name":"Team IO","author_link":"https:\/\/ioplus.nl\/archive\/author\/erikdevries\/"},"featured_img":"https:\/\/ioplus.nl\/archive\/wp-content\/uploads\/2024\/02\/Blood-cells.-Image-iStockSpawns.jpeg","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/health\/\" class=\"advgb-post-tax-term\">Health<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Health<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/health\/\" class=\"advgb-post-tax-term\">lung cancer<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/health\/\" class=\"advgb-post-tax-term\">TU Eindhoven<\/a>","<a href=\"https:\/\/ioplus.nl\/archive\/en\/category\/health\/\" class=\"advgb-post-tax-term\">TU\/e<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">lung cancer<\/span>","<span class=\"advgb-post-tax-term\">TU Eindhoven<\/span>","<span class=\"advgb-post-tax-term\">TU\/e<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Posted 2 years ago","modified":"Updated 2 years ago"},"absolute_dates":{"created":"Posted on February 2, 2024","modified":"Updated on February 2, 2024"},"absolute_dates_time":{"created":"Posted on February 2, 2024 3:58 pm","modified":"Updated on February 2, 2024 3:58 pm"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/posts\/469339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/users\/2589"}],"replies":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/comments?post=469339"}],"version-history":[{"count":0,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/posts\/469339\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media\/506601"}],"wp:attachment":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media?parent=469339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/categories?post=469339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/tags?post=469339"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/location?post=469339"},{"taxonomy":"article_type","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/article_type?post=469339"},{"taxonomy":"serie","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/serie?post=469339"},{"taxonomy":"archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/archives?post=469339"},{"taxonomy":"internal_archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/internal_archives?post=469339"},{"taxonomy":"reboot-archive","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/reboot-archive?post=469339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}