Volume 63, Issue 2 pp. 253-265
RESEARCH ARTICLE

PLEK2 mediates metastasis and invasion via α5-nAChR activation in nicotine-induced lung adenocarcinoma

Qiang Li

Qiang Li

Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China

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Jingtan Li

Jingtan Li

Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China

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Jingting Wang

Jingting Wang

Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China

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Jing Wang

Jing Wang

Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China

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Tong Lu

Tong Lu

Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China

Shandong Intelligent Technology Innovation Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, China

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Yanfei Jia

Yanfei Jia

Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China

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Haiji Sun

Haiji Sun

Shandong Intelligent Technology Innovation Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, China

College of Life Science, Shandong Normal University, Shandong, China

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Xiaoli Ma

Corresponding Author

Xiaoli Ma

Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China

Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, China

Shandong Intelligent Technology Innovation Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, China

Laboratory of Traditional Chinese Medicine & Stress Injury of Shandong Province, Shandong, China

Correspondence Xiaoli Ma, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, China.

Email: [email protected]

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First published: 03 November 2023

[Correction added on 17 November 2023 after first online publication: Table 1 has been updated.]

Abstract

Evidence has shown a strong relationship between smoking and epithelial mesenchymal transition (EMT). α5-nicotinic acetylcholine receptor (α5-nAChR) contributes to nicotine-induced lung cancer cell EMT. The cytoskeleton-associated protein PLEK2 is mainly involved in cytoskeletal protein recombination and cell stretch migration regulation, which is closely related to EMT. However, little is known about the link between nicotine/α5-nAChR and PLEK2 in lung adenocarcinoma (LUAD). Here, we identified a link between α5-nAChR and PLEK2 in LUAD. α5-nAChR expression was correlated with PLEK2 expression, smoking status and lower survival in vivo. α5-nAChR mediated nicotine-induced PLEK2 expression via STAT3. α5-nAChR/PLEK2 signaling is involved in LUAD cell migration, invasion and stemness. Moreover, PLEK2 was found to interact with CFL1 in nicotine-induced EMT in LUAD cells. Furthermore, the functional link among α5-nAChR, PLEK2 and CFL1 was confirmed in mouse xenograft tissues and human LUAD tissues. These findings reveal a novel α5-nAChR/PLEK2/CFL1 pathway involved in nicotine-induced LUAD progression.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflict of interest.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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