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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/218536
Low input capture Hi-C (liCHi-C) identifies promoter-enhancer interactions at high-resolution
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Long-range interactions between regulatory elements and promoters are key in gene transcriptional control; however, their study requires large amounts of starting material, which is not compatible with clinical scenarios nor the study of rare cell populations. Here we introduce low input capture Hi-C (liCHi-C) as a cost-effective, flexible method to map and robustly compare promoter interactomes at high resolution. As proof of its broad applicability, we implement liCHi-C to study normal and malignant human hematopoietic hierarchy in clinical samples. We demonstrate that the dynamic promoter architecture identifies developmental trajectories and orchestrates transcriptional transitions during cell-state commitment. Moreover, liCHi-C enables the identification of disease-relevant cell types, genes and pathways potentially deregulated by non-coding alterations at distal regulatory elements. Finally, we show that liCHi-C can be harnessed to uncover genome-wide structural variants, resolve their breakpoints and infer their pathogenic effects. Collectively, our optimized liCHi-C method expands the study of 3D chromatin organization to unique, low-abundance cell populations, and offers an opportunity to uncover factors and regulatory networks involved in disease pathogenesis.
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TOMÁS-DAZA, Laureano, ROVIROSA, Llorenç, LÓPEZ-MARTÍ, Paula, NIETO-ALISEDA, Andrea, SERRA, François, PLANAS-RIVEROLA, Ainoa, MOLINA, Òscar, MCDONALD, Rebeca, GHEVAERT, Cedric, CUATRECASAS, Esther, COSTA, Dolors, CAMÓS GUIJOSA, Mireia, BUENO, Clara, MENÉNDEZ, Pablo, VALENCIA, Alfonso, JAVIERRE, Biola m.. Low input capture Hi-C (liCHi-C) identifies promoter-enhancer interactions at high-resolution. _Nature Communications_. 2023. Vol. 14. [consulta: 20 de gener de 2026]. ISSN: 2041-1723. [Disponible a: https://hdl.handle.net/2445/218536]