% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Solomon:280292, author = {Solomon, Pierre and Kaurani, Lalit and Budde, Monika and Guiné, Jean-Baptiste and Krüger, Dennis Manfred and Riquin, Kevin and Pena, Tonatiuh and Burkhardt, Susanne and Fourgeux, Cynthia and Adorjan, Kristina and Heilbronner, Maria and Kalman, Janos L and Kohshour, Mojtaba Oraki and Papiol, Sergi and Reich-Erkelenz, Daniela and Schaupp, Sabrina K and Schulte, Eva C and Senner, Fanny and Vogl, Thomas and Anghelescu, Ion-George and Arolt, Volker and Baune, Bernhardt T and Dannlowski, Udo and Dietrich, Detlef E and Fallgatter, Andreas and Figge, Christian and Juckel, Georg and Konrad, Carsten and Reimer, Jens and Reininghaus, Eva Z and Schmauß, Max and Spitzer, Carsten and Wiltfang, Jens and Zimmermann, Jörg and Schütz, Anna-Lena and Sananbenesi, Farahnaz and Sauvaget, Anne and Falkai, Peter and Schulze, Thomas G and Fischer, André and Heilbronner, Urs and Poschmann, Jeremie}, title = {{I}ntegrative analysis of mi{RNA} expression profiles reveals distinct and common molecular mechanisms underlying broad diagnostic groups of severe mental disorders.}, journal = {Molecular psychiatry}, volume = {30}, number = {9}, issn = {1359-4184}, address = {[London]}, publisher = {Springer Nature}, reportid = {DZNE-2025-00947}, pages = {4364 - 4383}, year = {2025}, abstract = {Micro RNAs (miRNAs) play a crucial role as regulators of various biological processes and have been implicated in the pathogenesis of mental disorders such as schizophrenia and bipolar disorders. In this study, we investigate the expression patterns of miRNAs in the PsyCourse Study (n = 1786), contrasting three broad diagnostic groups: Psychotic (Schizophrenia-spectrum disorders), Affective (Bipolar Disorder I, II and recurrent Depression), and neurotypic healthy individuals. Through comprehensive analyses, including differential miRNA expression, miRNA transcriptome-wide association study (TWAS), and predictive modelling, we identified multiple miRNAs unique to Psychotic and Affective groups as well as shared by both. Furthermore, we performed integrative analysis to identify the target genes of the dysregulated miRNAs and elucidate their potential roles in psychosis. Our findings reveal significant alterations of multiple miRNAs such as miR-584-3p and miR-99b-5p across the studied diagnostic groups, highlighting their role as molecular correlates. Additionally, the miRNA TWAS analysis discovered previously known and novel genetically dysregulated miRNAs confirming the relevance in the etiology of the diagnostic groups. Importantly, novel factors and putative molecular mechanisms underlying these groups were uncovered through the integration of miRNA-target gene interactions. This comprehensive investigation provides valuable insights into the molecular underpinnings of severe mental disorders, shedding light on the complex regulatory networks involving miRNAs.}, keywords = {Humans / MicroRNAs: genetics / MicroRNAs: metabolism / Bipolar Disorder: genetics / Male / Female / Schizophrenia: genetics / Schizophrenia: metabolism / Mental Disorders: genetics / Gene Expression Profiling: methods / Adult / Transcriptome: genetics / Psychotic Disorders: genetics / Gene Regulatory Networks: genetics / Genome-Wide Association Study: methods / Middle Aged / MicroRNAs (NLM Chemicals)}, cin = {AG Fischer / AG Wiltfang / Bioinformatics Unit (Göttingen) / AG Sananbenesi}, ddc = {610}, cid = {I:(DE-2719)1410002 / I:(DE-2719)1410006 / I:(DE-2719)1440016 / I:(DE-2719)1410004}, pnm = {352 - Disease Mechanisms (POF4-352) / 353 - Clinical and Health Care Research (POF4-353) / 899 - ohne Topic (POF4-899)}, pid = {G:(DE-HGF)POF4-352 / G:(DE-HGF)POF4-353 / G:(DE-HGF)POF4-899}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:40263528}, doi = {10.1038/s41380-025-03018-9}, url = {https://pub.dzne.de/record/280292}, }