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This study, for the first time, aimed to investigate how bulk and single cell RNA-sequencing as well as the proteomics analysis of the human heart tissue can be integrated to uncover HF-specific networks and potential therapeutic targets or biomarkers. We also aimed to address the issue of dealing with a limited number of samples and to show how appropriate statistical models, enrichment with other datasets as well as machine learning-guided analysis can aid in such cases. Furthermore, we elucidated specific gene expression profiles using transcriptomic and mined data from public databases. This was achieved using the two-step machine learning algorithm to predict the likelihood of the therapeutic target or biomarker tractability based on a novel scoring system, which has also been introduced in this study. The described methodology could be very useful for the target or biomarker selection and evaluation during the pre-clinical therapeutics development stage as well as disease progression monitoring. In addition, the present study sheds new light into the complex aetiology of HF, differentiating between subtle changes in dilated cardiomyopathies (DCs) and ischemic cardiomyopathies (ICs) on the single cell, proteome and whole transcriptome level, demonstrating that HF might be dependent on the involvement of not only the cardiomyocytes but also on other cell populations. Identified tissue remodelling and inflammatory processes can be beneficial when selecting targeted pharmacological management for DCs or ICs, respectively.<\/jats:p>","DOI":"10.1093\/intbio\/zyab007","type":"journal-article","created":{"date-parts":[[2021,5,10]],"date-time":"2021-05-10T07:17:04Z","timestamp":1620631024000},"page":"121-137","source":"Crossref","is-referenced-by-count":8,"title":["Insights into therapeutic targets and biomarkers using integrated multi-\u2018omics\u2019 approaches for dilated and ischemic cardiomyopathies"],"prefix":"10.1093","volume":"13","author":[{"given":"Aust\u0117","family":"Kanapeckait\u0117","sequence":"first","affiliation":[{"name":"Algorithm379, Laisv\u0117s g. 7, Vilnius LT-12007, Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Neringa","family":"Burokien\u0117","sequence":"additional","affiliation":[{"name":"Clinics of Internal Diseases, Family Medicine and Oncology, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, M. 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