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There is an urgent need for robust systems biomarkers that can help with early cancer diagnosis, prediction of treatment outcomes, and design of precision\/personalized medicines for LUAD. The present study aimed at systems biomarkers of LUAD and deployed integrative bioinformatics and machine learning tools to harness gene expression data. Predictive models were developed to stratify patients based on prognostic outcomes. Importantly, we report here several potential key genes, for example,\n                    <jats:italic toggle=\"yes\">PMEL<\/jats:italic>\n                    and\n                    <jats:italic toggle=\"yes\">BRIP1<\/jats:italic>\n                    , and pathways implicated in the progression and prognosis of LUAD that could potentially be targeted for precision\/personalized medicine in the future. Our drug repurposing analysis and molecular docking simulations suggested eight drug candidates for LUAD such as heat shock protein 90 inhibitors, cardiac glycosides, an antipsychotic agent (trifluoperazine), and a calcium ionophore (ionomycin). In summary, this study identifies several promising leads on systems biomarkers and drug candidates for LUAD. The findings also attest to the importance of integrative bioinformatics, structural biology and machine learning techniques in biomarker discovery, and precision oncology research and development.\n                  <\/jats:p>","DOI":"10.1089\/omi.2024.0121","type":"journal-article","created":{"date-parts":[[2024,7,9]],"date-time":"2024-07-09T05:01:38Z","timestamp":1720501298000},"page":"408-420","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Lung Adenocarcinoma Systems Biomarker and Drug Candidates Identified by Machine Learning, Gene Expression Data, and Integrative Bioinformatics Pipeline"],"prefix":"10.1177","volume":"28","author":[{"given":"Semra Melis","family":"Soyer","sequence":"first","affiliation":[{"name":"Department of Bioengineering, Faculty of Engineering, Marmara University, \u0130stanbul, T\u00fcrkiye."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3043-0015","authenticated-orcid":false,"given":"Pemra","family":"Ozbek","sequence":"additional","affiliation":[{"name":"Department of Bioengineering, Faculty of Engineering, Marmara University, \u0130stanbul, T\u00fcrkiye."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2970-387X","authenticated-orcid":false,"given":"Ceyda","family":"Kasavi","sequence":"additional","affiliation":[{"name":"Department of Bioengineering, Faculty of Engineering, Marmara University, \u0130stanbul, T\u00fcrkiye."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2024,8]]},"reference":[{"key":"e_1_3_5_2_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12881-019-0812-0"},{"key":"e_1_3_5_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arcmed.2020.02.007"},{"key":"e_1_3_5_4_1","doi-asserted-by":"publisher","DOI":"10.7573\/dic.2022-1-5"},{"key":"e_1_3_5_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/75556"},{"key":"e_1_3_5_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkl887"},{"key":"e_1_3_5_7_1","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/28.1.235"},{"key":"e_1_3_5_8_1","volume-title":"Cancer, Lung, Adenocarcinoma","author":"Bhimji SS","year":"2023","unstructured":"Bhimji SS, , Wallen JM. 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