Cholecystokinin 1 receptor activation restores normal mTORC1 signaling and is protective to Purkinje cells of SCA mice.
Cholecystokinin 1 receptor activation restores normal mTORC1 signaling and is protective to Purkinje cells of SCA mice.
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DOI:
10.1016/j.celrep.2021.109831
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发表时间:
2021-10-12
期刊:
影响因子:
8.8
通讯作者:
Orr HT
中科院分区:
文献类型:
--
作者:
Wozniak EAL;Chen Z;Paul S;Yang P;Figueroa KP;Friedrich J;Tschumperlin T;Berken M;Ingram M;Henzler C;Pulst SM;Orr HT
Spinocerebellar ataxias (SCAs) are a group of genetic diseases characterized by progressive ataxia and neurodegeneration, often in cerebellar Purkinje neurons. A SCA1 mouse model, Pcp2-ATXN1[30Q]D776, has severe ataxia in absence of progressive Purkinje neuron degeneration and death. Previous RNA-seq analyses identify cerebellar upregulation of the peptide hormone cholecystokinin (Cck) in Pcp2-ATXN1[30Q]D776 mice. Importantly, absence of Cck1 receptor (Cck1R) in Pcp2-ATXN1[30Q]D776 mice confers a progressive disease with Purkinje neuron death. Administration of a Cck1R agonist, A71623, to Pcp2-ATXN1[30Q] D776;Cck−/− and Pcp2-AXTN1[82Q] mice dampens Purkinje neuron pathology and associated deficits in motor performance. In addition, A71623 administration improves motor performance of Pcp2-ATXN2[127Q] SCA2 mice. Moreover, the Cck1R agonist A71623 corrects mTORC1 signaling and improves expression of calbindin in cerebella of AXTN1[82Q] and ATXN2[127Q] mice. These results indicate that manipulation of the Cck-Cck1R pathway is a potential therapeutic target for treatment of diseases involving Purkinje neuron degeneration. Wozniak et al. show that administration of the Cck1R agonist A71623 to AXTN1[82Q] SCA1 and ATXN2[127Q] SCA2 mice dampens their deficits in motor performance, corrects mTORC1 signaling, and improves cerebellar expression of calbindin, a Purkinje neuron marker. These results indicate that the Cck-Cck1R pathway is a therapeutic target for SCAs.
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影响因子:
16.2
作者:
Ingram M;Wozniak EAL;Duvick L;Yang R;Bergmann P;Carson R;O'Callaghan B;Zoghbi HY;Henzler C;Orr HT
通讯作者:
Orr HT
影响因子:
3
作者:
Langfelder P;Horvath S
通讯作者:
Horvath S
影响因子:
11.2
作者:
Paul S;Dansithong W;Figueroa KP;Gandelman M;Scoles DR;Pulst SM
通讯作者:
Pulst SM
DOI:
10.1038/nrn.2017.92
发表时间:
2017-10
期刊:
Nature reviews. Neuroscience
影响因子:
--
作者:
Paulson HL;Shakkottai VG;Clark HB;Orr HT
通讯作者:
Orr HT
影响因子:
16.2
作者:
Rousseaux MWC;Tschumperlin T;Lu HC;Lackey EP;Bondar VV;Wan YW;Tan Q;Adamski CJ;Friedrich J;Twaroski K;Chen W;Tolar J;Henzler C;Sharma A;Bajić A;Lin T;Duvick L;Liu Z;Sillitoe RV;Zoghbi HY;Orr HT
通讯作者:
Orr HT