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Brain Research Bulletin

Brain Research Bulletin

IF: 3.5
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Protective effect of human umbilical cord mesenchymal stem cell derived conditioned medium in a mutant TDP-43 induced motoneuron-like cellular model of ALS

Published:1 February 2023 DOI: PMID: 36563944
Jiaqi Lan , Yujun Zhou , Hongyue Wang , Jingshu Tang , Yuying Kang , Peishen Wang , Xuebin Liu , Ying Peng

Abstract

Amyotrophic lateral sclerosis (ALS) is a multi-factor neurodegenerative disease, characterized by the loss of motor neurons. TAR DNA-binding protein 43 (TDP-43) mutation, accumulation and aggregation, as well as oxidative stress are recognized as major pathological denominators and biochemical markers for ALS. Recently, human umbilical cord mesenchymal stem cell-derived conditioned medium (UC-CM) has been introduced to treat ALS patients. However, there is no research for the protective effect of UC-CM on the TDP-43 model of ALS. In this study, we evaluated the potential neuroprotective effect of UC-CM on a cellular ALS model expressing TDP-43mutant M337V, as well as its underlying mechanism. We found that 24?h UC-CM treatment could protect M337V expressing motor neurons by increasing cell viability and reducing LDH leakage. Furthermore, the aggregation of M337V, generation of ROS, malondialdehyde (MDA), 4-hydroxynonenal (4-HNE), protein carbonyl and 8-OHdG were also reduced by UC-CM, indicating that UC-CM protected cells by reducing oxidative damage. Moreover, UC-CM significantly increased the expression of nuclear Nrf2 and its downstream enzyme HO1. The Nrf2 translocation inhibitor ML385 could inhibit the effect of UC-CM on the cell viability and aggregate of M337V. Our results suggest that UC-CM protect cells against M337V expression by its strong antioxidative effect via Nrf-2/HO-1 axis activation.

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Materials Related products
Procduct Name CAS Molecular Formula Supplier Price
ML385 846557-71-9 C29H25N3O4S 153 suppliers $18.00-$2646.00
ML385 846557-71-9 C29H25N3O4S 153 suppliers $18.00-$2646.00
ML385 846557-71-9 C29H25N3O4S 153 suppliers $18.00-$2646.00
ML385 846557-71-9 C29H25N3O4S 153 suppliers $18.00-$2646.00

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