GABA and Artesunate Do Not Induce Pancreatic α-to-β Cell Transdifferentiation In Vivo.
GABA and Artesunate Do Not Induce Pancreatic α-to-β Cell Transdifferentiation In Vivo.
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DOI:
10.1016/j.cmet.2018.07.002
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发表时间:
2018-11-06
期刊:
影响因子:
29
通讯作者:
Kaestner KH
中科院分区:
文献类型:
--
作者:
Ackermann AM;Moss NG;Kaestner KH
Recent reports identified activation of the GABA signaling pathway as a means to induce trans-differentiation of pancreatic α cells into β cells. These reports followed several previous studies that found that α cells were particularly well-suited to conversion into β cells in mice, but only after nearly complete β cell loss or forced overexpression of key transcriptional regulators. The possibility of increasing β cell number via reprograming of α cells with a small molecule is enticing, as this could be a potential new pharmacologic therapy for diabetes. Here, we employed rigorous genetic lineage tracing of α cells, using Glucagon-CreERT2;Rosa-LSL-eYFP mice, to evaluate if activation of GABA signaling caused α-to-β cell reprogramming. In contrast to previous reports, we found that even after long-term treatment of mice with artesunate or GABA, neither α-to-β cell trans-differentiation nor insulin secretion were stimulated, putting into question whether these agents represent a viable path to a novel diabetes therapy.
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Wilcox CL;Terry NA;Walp ER;Lee RA;May CL
通讯作者:
May CL
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van der Meulen T;Mawla AM;DiGruccio MR;Adams MW;Nies V;Dólleman S;Liu S;Ackermann AM;Cáceres E;Hunter AE;Kaestner KH;Donaldson CJ;Huising MO
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Huising MO