Parkin Levels Decrease in Fibroblasts With Progranulin (PGRN) Pathogenic Variants and in a Cellular Model of PGRN Deficiency.
Parkin Levels Decrease in Fibroblasts With Progranulin (PGRN) Pathogenic Variants and in a Cellular Model of PGRN Deficiency.
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DOI:
10.3389/fnmol.2021.676478
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发表时间:
2021
影响因子:
4.8
通讯作者:
Zekanowski C
中科院分区:
文献类型:
--
作者:
Gaweda-Walerych K;Walerych D;Berdyński M;Buratti E;Zekanowski C
Frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS) are neurodegenerative diseases with TDP-43 mislocalization and aggregation. Genetic forms of FTLD and ALS are caused by pathogenic variants in various genes, such as PGRN (progranulin). To date, depletion of parkin E3 ubiquitin protein ligase, a key mitophagy regulator, has been reported in sporadic ALS patients and ALS mice models with TDP-43 proteinopathy. In this work, we show parkin downregulation also in fibroblasts derived from FTLD patients with four different PGRN pathogenic variants. We corroborate this finding in control fibroblasts upon PGRN silencing, demonstrating additionally the decrease of parkin downstream targets, mitofusin 2 (MFN2) and voltage dependent anion channel 1 (VDAC1). Importantly, we show that TDP-43 overexpression rescues PRKN levels upon transient PGRN silencing, but not in FTLD fibroblasts with PGRN pathogenic variants, despite upregulating PGRN levels in both cases. Further observation of PRKN downregulation upon TDP-43 silencing, suggests that TDP-43 loss-of-function contributes to PRKN decrease. Our results provide further evidence that parkin downregulation might be a common and systemic phenomenon in neurodegenerative diseases with TDP- 43 loss-of-function.
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影响因子:
64.8
作者:
Cruts, Marc;Gijselinck, Ilse;Van Broeckhoven, Christine
通讯作者:
Van Broeckhoven, Christine
影响因子:
16.2
作者:
Pickrell AM;Youle RJ
通讯作者:
Youle RJ
影响因子:
5.4
作者:
Buratti, Emanuele;De Conti, Laura;Baralle, Francisco
通讯作者:
Baralle, Francisco
影响因子:
4.2
作者:
Sabatelli, Mario;Zollino, Marcella;Moncada, Alice
通讯作者:
Moncada, Alice
DOI:
10.1083/jcb.200910140
发表时间:
2010-04-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Matsuda N;Sato S;Shiba K;Okatsu K;Saisho K;Gautier CA;Sou YS;Saiki S;Kawajiri S;Sato F;Kimura M;Komatsu M;Hattori N;Tanaka K
通讯作者:
Tanaka K