#18 · Single-cell

Single-cell chromatin atlas places Crohn's noncoding variants within regulatory elements

The dominant thread is resolving disease-relevant regulatory and cellular structure at single-cell or tissue-region resolution. The Crohn's disease study is the most direct instance: a single-cell chromatin accessibility atlas of intestine spanning 557,310 cCREs places 30 fine-mapped noncoding variants within these elements, tying genetic associations to specific regulatory programs. The other two items operate at a different level. SpatialTRACE extends sparse annotations into tissue-wide anatomical axis and region maps for spatial transcriptomics and microscopy, while TransComp-R links mouse lymph node colonization models to human melanoma, relating EcoTyper cellular ecotypes to metastatic outcomes. What is new is the joint attention to noncoding regulatory elements in patient tissue and to translational mapping from model systems and sparse annotations to human disease. The modalities and designs differ, so the shared element is analytical framing rather than a common finding.