Publications by authors named "D Heiman"
Diffuse large B-cell lymphoma (DLBCL) is a clinically and molecularly heterogeneous disease. The increasing recognition and targeting of genetically defined DLBCLs highlights the need for robust classification algorithms. We previously characterized recurrent genetic alterations in DLBCL and identified five discrete subtypes, Clusters 1-5 (C1-C5), with unique mechanisms of transformation, immune evasion, candidate treatment targets and different outcomes following standard first-line therapy.
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- Post-translational modifications (PTMs) significantly influence cell signaling and physiology in both healthy and cancerous cells, with recent advancements in mass spectrometry allowing for precise analysis of these modifications.* -
- This study utilizes the largest dataset of proteogenomics from 1,110 cancer patients to uncover widespread patterns of protein changes, particularly focusing on acetylation and phosphorylation across 11 cancer types.* -
- Findings show that specific cancer types exhibit unique PTM-related alterations linked to processes like DNA repair, immune response, kinase activity, and histone regulation, suggesting new potential therapeutic targets.*
Cancer driver events refer to key genetic aberrations that drive oncogenesis; however, their exact molecular mechanisms remain insufficiently understood. Here, our multi-omics pan-cancer analysis uncovers insights into the impacts of cancer drivers by identifying their significant cis-effects and distal trans-effects quantified at the RNA, protein, and phosphoprotein levels. Salient observations include the association of point mutations and copy-number alterations with the rewiring of protein interaction networks, and notably, most cancer genes converge toward similar molecular states denoted by sequence-based kinase activity profiles.
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- - The National Cancer Institute's CPTAC focuses on analyzing tumors using a proteogenomic approach, which combines genomic data with proteomic information to better understand cancer.
- - The consortium has developed a comprehensive dataset that includes genomic, transcriptomic, proteomic, and clinical data from over 1000 tumors across 10 different groups, aimed at enhancing cancer research.
- - The CPTAC team addresses challenges in integrating and analyzing multi-omics data, especially the complexities arising from combining nucleotide sequencing with mass spectrometry proteomics information.
Magnetic transition metal chalcogenides form an emerging platform for exploring spin-orbit driven Berry phase phenomena owing to the nontrivial interplay between topology and magnetism. Here we show that the anomalous Hall effect in pristine CrTe thin films manifests a unique temperature-dependent sign reversal at nonzero magnetization, resulting from the momentum-space Berry curvature as established by first-principles simulations. The sign change is strain tunable, enabled by the sharp and well-defined substrate/film interface in the quasi-two-dimensional CrTe epitaxial films, revealed by scanning transmission electron microscopy and depth-sensitive polarized neutron reflectometry.
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