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Direct programming of human mammary self-organised organoids by miR-106a-3p

Delom, F.; Puceat, M.; Fessart, D.

2021-07-22 cell biology
10.1101/314658 bioRxiv
Show abstract

The 3D cultures provide more insight into cell-to-cell and cell-to-matrix interactions, better mimicking the environment where stem cells reside compared to traditional 2D cultures. Although the precise molecular pathways involved in the regulation of stem and progenitor cell fate remain unknown, it is widely accepted that transcription factors play a crucial role as intrinsic regulators in these fate decisions. In this study, we carried out a microRNA screen to track the behaviour of adult stem/progenitor cells derived from human mammary epithelial cells grown in 3D cultures. We identified miR-106a-3p, which enriches the adult stem cell-like lineage and promotes the expansion of 3D cultures. Transcriptomic analysis showed that this miRNA regulates transcription factors such as REST, CBFB, NF-YA, and GATA3, thereby enhancing the maintenance of adult stem/progenitor cells in human epithelial cells. These data reveal a clear transcriptional program that governs the maintenance of adult stem/progenitor cells and controls their fate.

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"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.