{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/24449"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/24449","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Lung disease diagnosis from gene expression profiles","abstract":"Lung diseases include some of the most widespread and deadly conditions known to affect people in the US today. One of the main challenges in treating lung disease is the difficulty of diagnosis. Clinical diagnosis remains largely dependent upon symptomatic-based diagnoses; many cases can be either misdiagnosed or undiagnosed until disease has progressed to a more severe stage. Most studies aimed at finding molecular-based diagnostics have focused on one or two diseases at a time, yielding limited success. Instead, we searched for biomarkers reflective of the global health state of the lung by studying data taken from a broad range of lung diseases. We used gene expression microarray data from five different lung diseases—lung adenocarcinoma, lung squamous cell carcinoma, large cell lung carcinoma, chronic obstructive pulmonary disease, and asthma—as well as a non-diseased phenotype, to train a classification tree scheme based on the Top Scoring Pair algorithm (Geman et al., Stat Appl Genet Mol Biol. 2004; 3: Article 19). The algorithm identified a 32 gene-pair panel that classified all of the phenotypes considered and another panel of 21 gene pair classifiers that classified the three cancers explicitly with sensitivity of 67±8% and 79±6% in ten-fold cross validation (p < 0.001), respectively. Several of the markers have been previously cited in literature as linked to these cancers. Thus, a TSP-based classification tree scheme accurately identifies lung diseases from the relative expression of a parsimonious set of diagnostic gene pairs.","abstract_html":"Lung diseases include some of the most widespread and deadly conditions known to affect people in the US today. One of the main challenges in treating lung disease is the difficulty of diagnosis. Clinical diagnosis remains largely dependent upon symptomatic-based diagnoses; many cases can be either misdiagnosed or undiagnosed until disease has progressed to a more severe stage. Most studies aimed at finding molecular-based diagnostics have focused on one or two diseases at a time, yielding limited success. Instead, we searched for biomarkers reflective of the global health state of the lung by studying data taken from a broad range of lung diseases. We used gene expression microarray data from five different lung diseases—lung adenocarcinoma, lung squamous cell carcinoma, large cell lung carcinoma, chronic obstructive pulmonary disease, and asthma—as well as a non-diseased phenotype, to train a classification tree scheme based on the Top Scoring Pair algorithm (Geman et al., Stat Appl Genet Mol Biol. 2004; 3: Article 19). The algorithm identified a 32 gene-pair panel that classified all of the phenotypes considered and another panel of 21 gene pair classifiers that classified the three cancers explicitly with sensitivity of 67±8% and 79±6% in ten-fold cross validation (p &lt; 0.001), respectively. Several of the markers have been previously cited in literature as linked to these cancers. Thus, a TSP-based classification tree scheme accurately identifies lung diseases from the relative expression of a parsimonious set of diagnostic gene pairs.","abstract_has_math":false,"creators":["Ma, Shuyi"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Chemical Engineering","degree_department":null,"school":null,"contributors":["Price, Nathan D."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-25T14:25:51Z","date_published":"2011-05-25T14:25:51Z","updated_at":"2026-07-22T22:25:23Z","subjects":["lung disease","lung cancer","asthma","Chronic obstructive pulmonary disease (COPD)","disease diagnosis","systems biology","Top Scoring Pair algorithm"],"languages":["en"],"rights":["Copyright 2011 Shuyi Ma"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/24449","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Price, Nathan D."]},{"key":"dc:creator","label":"Author","values":["Ma, Shuyi"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-25T14:25:51Z","2013-05-26T10:00:16Z","2011-05"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["lung disease","lung cancer","asthma","Chronic obstructive pulmonary disease (COPD)","disease diagnosis","systems biology","Top Scoring Pair algorithm"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2011 Shuyi Ma"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/24449"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Lung diseases include some of the most widespread and deadly conditions known to affect people in the US today. 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The algorithm identified a 32 gene-pair panel that classified all of the phenotypes considered and another panel of 21 gene pair classifiers that classified the three cancers explicitly with sensitivity of 67±8% and 79±6% in ten-fold cross validation (p < 0.001), respectively. Several of the markers have been previously cited in literature as linked to these cancers. 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The algorithm identified a 32 gene-pair panel that classified all of the phenotypes considered and another panel of 21 gene pair classifiers that classified the three cancers explicitly with sensitivity of 67±8% and 79±6% in ten-fold cross validation (p < 0.001), respectively. Several of the markers have been previously cited in literature as linked to these cancers. 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