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Title: Deciphering the roadmap of in vivo reprogramming toward pluripotency
Author: Chondronasiou, Dafni
Martínez de Villarreal, Jaime
Melendez, Elena
Lynch, Cian J.
Pozo, Natalia del
Kovatcheva, Marta
Aguilera, Mònica
Prats, Neus
Real, Francisco X.
Serrano, Manuel
Keywords: Pancreatitis
Regeneració (Biologia)
Regeneration (Biology)
Issue Date: 1-Jan-2022
Abstract: Differentiated cells can be converted into pluripotent stem cells by expressing the transcription factors OCT4, SOX2, KLF4, and MYC (OSKM) in a process known as reprogramming. Here, using single-cell RNA sequencing of pancreas undergoing reprogramming, we identify markers along the trajectory from acinar cell identity to pluripotency. These markers allow direct in situ visualization of cells undergoing dedifferentiation and acquiring features of early and advanced intermediate reprogramming. We also find that a fraction of cells do not dedifferentiate upon OSKM expression and are characterized by stress markers of the REG3 and AP-1 families. Importantly, most markers of intermediate reprogramming in the pancreas are also observed in stomach, colon, and cultured fibroblasts expressing OSKM. Among them is LY6A, a protein characteristic of progenitor cells and generally upregulated during tissue repair. Our roadmap defines intermediate reprogramming states that could be functionally relevant for tissue regeneration and rejuvenation.Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved.
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It is part of: Stem Cell Reports, 2022, vol. 17, num. 11, p. 2501-2517
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ISSN: 2213-6711
Appears in Collections:Articles publicats en revistes (Institut de Recerca Biomèdica (IRB Barcelona))

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