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Lanthanum Chloride Induces Axon Abnormality Through LKB1-MARK2 and LKB1-STK25-GM130 Signaling Pathways

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A Correction to this article was published on 21 June 2022

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Abstract

Lanthanum (La) is a natural rare-earth element that can damage the central nervous system and impair learning and memory. However, its neurotoxic mechanism remains unclear. In this study, adult female rats were divided into 4 groups and given distilled water solution containing 0%, 0.125%, 0.25%, and 0.5% LaCl3, respectively, and this was done from conception to the end of the location. Their offspring rats were used to establish animal models to investigate LaCl3 neurotoxicity. Primary neurons cultured in vitro were treated with LaCl3 and infected with LKB1 overexpression lentivirus. The results showed that LaCl3 exposure resulted in abnormal axons in the hippocampus and primary cultured neurons. LaCl3 reduced the expression of LKB1, p-LKB1, STRAD and MO25 proteins, and directly or indirectly affected the expression of LKB1, leading to decreased activity of LKB1-MARK2 and LKB1-STK25-GM130 pathways. This study indicated that LaCl3 exposure could interfere with the normal effects of LKB1 in the brain and downregulate LKB1-MARK2 and LKB1-STK25-GM130 signaling pathways, resulting in abnormal axon in offspring rats.

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Abbreviations

Ace:

Acetylated α-tubulin

Dil:

1,1'-Dioctadecyl-3,3,3′,3′-tetramethylindocarbocyanine perchlorate

GM130:

Golgi Matrix Protein130

LaCl3 :

Lanthanum chloride

LKB1:

Liver kinase B1

MARK2:

Microtubule affinity-regulating kinases 2

MO25:

Mouse protein 25

NC:

Negative control

NSE:

Neuron-specific enolase

OE:

Over expression

REEs:

Rare-earth elements

STE20:

Sterile twenty

STK25:

Serine/threonine kinase 25

STRAD:

STE20-related adapter

Tyr:

Tyrosinated α-tubulin

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Acknowledgements

This study was supported by the National Natural Science Foundation of China (No.81773469).

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Contributions

JY was responsible for the experimental design and revised the paper. ZS performed the experiments and wrote the manuscript. HM, JL and WS created the models. SW, XL and CJ provided technical support.

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Correspondence to Jinghua Yang.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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The original online version of this article was revised: Fig. 6 has been updated.

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Song, Z., Mao, H., Liu, J. et al. Lanthanum Chloride Induces Axon Abnormality Through LKB1-MARK2 and LKB1-STK25-GM130 Signaling Pathways. Cell Mol Neurobiol 43, 1181–1196 (2023). https://doi.org/10.1007/s10571-022-01237-0

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  • DOI: https://doi.org/10.1007/s10571-022-01237-0

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