CIB1 protects against MPTP-induced neurotoxicity through inhibiting ASK1

Kyoung Wan Yoon, Hyun Suk Yang, Young Mok Kim, Yeonsil Kim, Seong Man Kang, Woong Sun, Ulhas P. Naik, Leslie V. Parise, Eui Ju Choi

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2 Citations (Scopus)

Abstract

Calcium and integrin binding protein 1 (CIB1) is a calcium-binding protein that was initially identified as a binding partner of platelet integrin αIIb. Although CIB1 has been shown to interact with multiple proteins, its biological function in the brain remains unclear. Here, we show that CIB1 negatively regulates degeneration of dopaminergic neurons in a mouse model of Parkinson's disease using 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Genetic deficiency of the CIB1 gene enhances MPTP-induced neurotoxicity in dopaminergic neurons in CIB1-/- mice. Furthermore, RNAi-mediated depletion of CIB1 in primary dopaminergic neurons potentiated 1-methyl-4-phenyl pyrinidium (MPP+)-induced neuronal death. CIB1 physically associated with apoptosis signal-regulating kinase 1 (ASK1) and thereby inhibited the MPP+-induced stimulation of the ASK1-mediated signaling cascade. These findings suggest that CIB1 plays a protective role in MPTP/MPP+-induced neurotoxicity by blocking ASK1-mediated signaling.

Original languageEnglish
Article number12178
JournalScientific Reports
Volume7
Issue number1
DOIs
Publication statusPublished - 2017 Dec 1

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MAP Kinase Kinase Kinase 5
Calcium-Binding Proteins
Integrins
Dopaminergic Neurons
1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine
4-phenyl-1,2,3,6-tetrahydropyridine
RNA Interference
Parkinson Disease
Blood Platelets

ASJC Scopus subject areas

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CIB1 protects against MPTP-induced neurotoxicity through inhibiting ASK1. / Yoon, Kyoung Wan; Yang, Hyun Suk; Kim, Young Mok; Kim, Yeonsil; Kang, Seong Man; Sun, Woong; Naik, Ulhas P.; Parise, Leslie V.; Choi, Eui Ju.

In: Scientific Reports, Vol. 7, No. 1, 12178, 01.12.2017.

Research output: Contribution to journalArticle

Yoon, Kyoung Wan ; Yang, Hyun Suk ; Kim, Young Mok ; Kim, Yeonsil ; Kang, Seong Man ; Sun, Woong ; Naik, Ulhas P. ; Parise, Leslie V. ; Choi, Eui Ju. / CIB1 protects against MPTP-induced neurotoxicity through inhibiting ASK1. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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