Chemical modulation of transcriptionally enriched signaling pathways to optimize the conversion of fibroblasts into neurons.
Elife
; 82019 05 17.
Article
em En
| MEDLINE
| ID: mdl-31099332
ABSTRACT
Direct conversion of human somatic fibroblasts into induced neurons (iNs) allows for the generation of functional neurons while bypassing any stem cell intermediary stages. Although iN technology has an enormous potential for modeling age-related diseases, as well as therapeutic approaches, the technology faces limitations due to variable conversion efficiencies and a lack of thorough understanding of the signaling pathways directing iN conversion. Here, we introduce a new all-in-one inducible lentiviral system that simplifies fibroblast transgenesis for the two pioneer transcription factors, Ngn2 and Ascl1, and markedly improves iN yields. Further, our timeline RNA-Seq data across the course of conversion has identified signaling pathways that become transcriptionally enriched during iN conversion. Small molecular modulators were identified for four signaling pathways that reliably increase the yield of iNs. Taken together, these advances provide an improved toolkit for iN technology and new insight into the mechanisms influencing direct iN conversion.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transdução de Sinais
/
Transdiferenciação Celular
/
Fibroblastos
/
Neurônios
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
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Child, preschool
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Humans
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Infant
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Middle aged
/
Newborn
Idioma:
En
Revista:
Elife
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos