Pancreatic α-cell specific deletion of mouse Arx leads to α-cell identity loss.
Pancreatic α-cell specific deletion of mouse Arx leads to α-cell identity loss.
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小鼠ARX的胰腺α细胞特异性缺失会导致α细胞的身份丧失。
DOI:
10.1371/journal.pone.0066214
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
May CL
中科院分区:
文献类型:
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作者:
Wilcox CL;Terry NA;Walp ER;Lee RA;May CL
The specification and differentiation of pancreatic endocrine cell populations (α-, β-, δ, PP- and ε-cells) is orchestrated by a combination of transcriptional regulators. In the pancreas, Aristaless-related homeobox gene (Arx) is expressed first in the endocrine progenitors and then restricted to glucagon-producing α-cells. While the functional requirement of Arx in early α-cell specification has been investigated, its role in maintaining α-cell identity has yet to be explored. To study this later role of Arx, we have generated mice in which the Arx gene has been ablated specifically in glucagon-producing α-cells. Lineage-tracing studies and immunostaining analysis for endocrine hormones demonstrate that ablation of Arx in neonatal α-cells results in an α-to-β-like conversion through an intermediate bihormonal state. Furthermore, these Arx-deficient converted cells express β-cell markers including Pdx1, MafA, and Glut2. Surprisingly, short-term ablation of Arx in adult mice does not result in a similar α-to-β-like conversion. Taken together, these findings reveal a potential temporal requirement for Arx in maintaining α-cell identity.
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DOI:
10.1073/pnas.0308604100
发表时间:
2004-03-02
影响因子:
11.1
作者:
Prado, CL;Pugh-Bernard, AE;Sussel, L
通讯作者:
Sussel, L
影响因子:
2.2
作者:
Lee, Seung-Hee;Hao, Ergeng;Levine, Fred
通讯作者:
Levine, Fred
影响因子:
10.5
作者:
Collombat, P;Mansouri, A;Gruss, P
通讯作者:
Gruss, P
影响因子:
2.2
作者:
Juhl K;Bonner-Weir S;Sharma A
通讯作者:
Sharma A
影响因子:
64.8
作者:
通讯作者:
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