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The original research article entitled "Single-cell analysis and machine learning identify psoriasisassociated CD8+ T cells serve as biomarker for psoriasis", by He et al., employs single-cell techniques to analyze psoriasis, a chronic inflammatory skin disease characterized by complex immune mechanisms in which CD8⁺ T cells play a key pathogenic role. The study investigates psoriasis at single-cell resolution, identifying a distinct CD8⁺ T cell subpopulation highly enriched in psoriatic lesions. Using hdWGCNA, key hub genes were characterized, and a machine-learningbased predictive model with strong performance was developed and interpreted. To support clinical translation, the model was deployed as an online tool, offering new insights for diagnosis and potential therapeutic targeting.In the original research article "AnchorFCI: harnessing genetic anchors for enhanced causal discovery of cardiometabolic disease pathways", Ribeiro et al., present a novel causal discovery method named anchorFCI that enhances robustness and discovery power by integrating reliable genetic anchor variables. Through simulations and analysis of the 2015 ISA-Nutrition dataset, anchorFCI supports known causal relationships while revealing new interconnections among cardiometabolic risk factors. Combined with state-of-the-art effect identification tools, this approach provides a robust, data-driven framework for causal inference in complex epidemiological and public health studies.Hu and Fang, the authors of the original research article entitled "Explore potential immune-related targets of leeches in the treatment of type 2 diabetes based on network pharmacology and machine learning", investigate the potential mechanisms of leeches, a traditional Chinese medicine, in type 2 diabetes treatment using network pharmacology, transcriptomics, and machine-learning approaches. By integrating database mining, enrichment analyses, immune infiltration profiling, WGCNA, and multiple predictive algorithms, the study identifies potential therapeutic targets linked to immune modulation. Although promising, these findings require further experimental validation to confirm their clinical relevance.The original research article entitled "Prediction of mild cognitive impairment using blood multiomics data ", by Zhang et al., concerns mild cognitive impairment (MCI), an early stage of cognitive decline and a key risk factor for Alzheimer's disease, which is still difficult to diagnose. This study presents a blood-based, multi-omics machine-learning approach for MCI detection, integrating gene expression and copy number variation data. An XGBoost model achieved high predictive performance (AUC = 0.9398), demonstrating for the first time that genome-structure-level features are as informative as gene expression. Key genomic predictors were enriched in neurodegenerationrelated pathways, highlighting both the diagnostic potential and biological relevance of this approach.In the original research article entitled "Reference-free deconvolution of complex samples based on cross-cell-type differential analysis: Systematic evaluations with various feature selection options", Zhang and colleagues present a novel reference-free deconvolution method that leverages optimized feature selection through cross-cell-type differential analysis. By systematically evaluating feature selection strategies and iteratively identifying cell-type-specific features, the proposed approach achieves high accuracy. Extensive simulations and analyses of multiple real datasets demonstrate its strong performance.Celli and colleagues, in the original research article entitled "scVAR: integrating genomics and transcriptomics from single-cell RNA-seq -insights from leukemia case studies", present a computational framework that integrates genetic variation and transcriptomic information directly from single-cell RNA sequencing data. This powerful and broadly applicable approach enables integrative single-cell analysis of complex diseases. Using a variational autoencoder architecture with cross-attention-based fusion, the framework captures subtle cellular heterogeneity under noisy and sparse conditions. Applied to acute leukemias, the method identifies substantially more cellular subpopulations than transcriptomic analysis alone, revealing cell identities otherwise overlooked.Overall, this Research Topic has attracted considerable interest within the scientific community and brings together a series of high-quality, forward-looking contributions that highlight the transformative potential of artificial intelligence in omics research. Taken together, these articles not only address current methodological and biomedical challenges but also open new perspectives for future research, emphasizing the growing role of artificial intelligence-based approaches in shaping the next generation of precision medicine and biomedical discoveries.