Pluripotency retention and exogenous mRNA introduction in planarian stem cells in culture.

Pluripotency retention and exogenous mRNA introduction in planarian stem cells in culture.
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DOI:
10.1016/j.isci.2023.106001
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发表时间:
2023-02-17
期刊:
影响因子:
5.8
通讯作者:
Alvarado, Alejandro Sanchez
Alvarado, Alejandro Sanchez
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Lei, Kai;Zhang, Wenya;Chen, Jiajia;McKinney, Sean A.;Ross, Eric J.;Lee, Heng-Chi;Alvarado, Alejandro Sanchez

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Planarians possess naturally occurring pluripotent adult somatic stem cells (neoblasts) required for homeostasis and whole-body regeneration. However, no reliable neoblast culture methods are currently available, hindering mechanistic studies of pluripotency and the development of transgenic tools. We report robust methods for neoblast culture and delivery of exogenous mRNAs. We identify optimal culture media for the short-term maintenance of neoblasts in vitro and show via transplantation that cultured stem cells retain pluripotency for two days. We developed a procedure that significantly improves neoblast yield and purity by modifying standard flow cytometry methods. These methods enable the introduction and expression of exogenous mRNAs in neoblasts, overcoming a key hurdle impeding the application of transgenics in planarians. The advances in cell culture reported here create new opportunities for mechanistic studies of planarian adult stem cell pluripotency, and provide a systematic framework to develop cell culture techniques in other emerging research organisms. Planarian neoblast pluripotency can be maintained in optimized culture conditions SiRNeoblasts serve as an alternative source of transplantable neoblasts Cultured SiRNeoblasts provide a system to examine transgene tools for planarians Exogenous mRNA can be expressed in differentiating SiRNeoblasts in vitro Biological sciences; Molecular biology; Stem cells research
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