The dense core vesicle protein IA-2, but not IA-2β, is required for active avoidance learning.

The dense core vesicle protein IA-2, but not IA-2β, is required for active avoidance learning.
复制标题

DOI:
10.1016/j.neuroscience.2014.03.023
复制
发表时间:
2014-06-06
期刊:
影响因子:
3.3
通讯作者:
Notkins AL
Notkins AL
中科院分区:
医学3区
文献类型:
--
作者:
Carmona GN;Nishimura T;Schindler CW;Panlilio LV;Notkins AL

文献摘要

参考文献

被引文献

相似文献

胰岛抗原 IA-2 和 IA-2β 是 1 型糖尿病中的主要自身抗原,也是致密核心囊泡 (DCV) 中的跨膜蛋白。最近我们发现,IA-2 和 IA-2β 的缺失会改变激素和神经递质的分泌,并损害行为和学习。本研究旨在通过在主动回避测试中使用单敲除(SKO)和双敲除(DKO)小鼠来评估这些基因对学习的贡献。训练 5 天后,野生型 (WT) 小鼠表现出 60-70% 的主动回避反应,而 DKO 小鼠仅表现出 10-15% 的主动回避反应。 IA-2 SKO 小鼠的主动回避反应程度与 DKO 小鼠相似,但相反,IA-2β SKO 小鼠的行为与 WT 小鼠相似,显示出 60-70% 的主动回避反应。分子研究表明,IA-2 SKO 和 DKO 小鼠纹状体和海马中 cAMP 反应元件结合蛋白 (CREB) 和 Ca2+/钙调蛋白依赖性蛋白激酶 II (CAMKII) 的磷酸化显着降低,但 IA-2β SKO 小鼠中则没有。为了评估 CREB ​​和 CAMKII 在 SKO 和 DKO 小鼠中的作用,给予 GBR-12909,它选择性阻断多巴胺摄取转运蛋白并增加 CREB ​​和 CAMKII 磷酸化。 GBR-12909 恢复了 CREB ​​和 CAMKII 的磷酸化,并将 DKO 和 IA-2 SKO 小鼠的主动回避学习能力提高到接近 WT 和 IA-2β SKO 小鼠的正常水平。我们的结论是,在缺乏 DCV 蛋白 IA-2 的情况下,主动回避学习会受到损害。
The islet-antigens IA-2 and IA-2β are major autoantigens in type-1 diabetes and transmembrane proteins in dense core vesicles (DCV). Recently we showed that deletion of both IA-2 and IA-2β alters the secretion of hormones and neurotransmitters and impairs behavior and learning. The present study was designed to evaluate the contribution to learning of each of these genes by using single knockout (SKO) and double knockout (DKO) mice in an active avoidance test. After 5 days of training, wild type (WT) mice showed 60–70% active avoidance responses, whereas the DKO mice showed only 10–15% active avoidance responses. The degree of active avoidance responses in the IA-2 SKO mice was similar to that of the DKO mice, but in contrast, the IA-2β SKO mice behaved like WT mice showing 60–70% active avoidance responses. Molecular studies revealed a marked decrease in the phosphorylation of the cAMP Response Element-Binding Protein (CREB) and Ca2+/Calmodulin-Dependent Protein Kinase II (CAMKII) in the striatum and hippocampus of the IA-2 SKO and DKO mice, but not in the IA-2β SKO mice. To evaluate the role of CREB and CAMKII in the SKO and DKO mice, GBR-12909, which selectively blocks the dopamine uptake transporter and increases CREB and CAMKII phosphorylation, was administered. GBR-12909 restored the phosphorylation of CREB and CAMKII and increased active avoidance learning in the DKO and IA-2 SKO to near the normal levels found in the WT and IA-2β SKO mice. We conclude that in the absence of the DCV protein IA-2, active avoidance learning is impaired.
DOI: 10.1073/pnas.92.24.11175
发表时间: 1995-11-21
影响因子: 11.1
作者:
LLEDO, PM;HJELMSTAD, GO;NICOLL, RA
通讯作者: NICOLL, RA
DOI: 10.1096/fj.09-132019
发表时间: 2009-09-01
期刊: FASEB JOURNAL
影响因子: 4.8
作者:
Kim, Soo Mi;Power, Andrea;Notkins, Abner L.
通讯作者: Notkins, Abner L.
DOI: 10.1093/chemse/bjj045
发表时间: 2007-01-01
期刊: CHEMICAL SENSES
影响因子: 3.5
作者:
Yamamoto, Takashi
通讯作者: Yamamoto, Takashi
DOI: 10.1016/0092-8674(94)90400-6
发表时间: 1994-10-07
期刊: CELL
影响因子: 64.5
作者:
BOURTCHULADZE, R;FRENGUELLI, B;SILVA, AJ
通讯作者: SILVA, AJ
DOI: 10.1074/jbc.m109.066563
发表时间: 2010-04-02
影响因子: 4.8
作者:
Caromile, Leslie A.;Oganesian, Anush;Bowen-Pope, Daniel F.
通讯作者: Bowen-Pope, Daniel F.