|Table of Contents|

PAK2 promotes cisplatin resistance in lung cancer cells by regulating the activity of ERK signaling pathway

Journal Of Modern Oncology[ISSN:1672-4992/CN:61-1415/R]

Issue:
2023 13
Page:
2448-2454
Research Field:
Publishing date:

Info

Title:
PAK2 promotes cisplatin resistance in lung cancer cells by regulating the activity of ERK signaling pathway
Author(s):
WANG Shuang1; RONG Xuezhu2; WANG Si3; LI Zhen2; LIU Yang2
1.Department of Anesthesiology;2.Department of Pathology,The First Hospital of China Medical University,Liaoning Shenyang 110001,China;3.Department of Medical Microbiology and Human Parasitology,Basic Medicine College,China Medical University,Liaoning Shenyang 110122,China.
Keywords:
NSCLC; p21-activated kinase 2; cell proliferation; cell invasion; ERK signal pathway
PACS:
R734.2
DOI:
10.3969/j.issn.1672-4992.2023.13.014
Abstract:
Objective:To investigate the expression pattern of p21 activated kinase 2(PAK2) in non-small cell lung cancer(NSCLC) and its effect on the proliferation and invasion of lung cancer cells.Methods:The protein expression level of PAK2 in NSCLC was detected by immunohistochemistry and Western blot(WB).PAK2-siRNA was used to down-regulate the expression of PAK2 in lung cancer cell lines.We revealed the effects of PAK2 on the cell malignant phenotype and the possible molecular regulation mechanisms via WB and cell function experiments.In the process of inducing the erlotinib resistance of lung cancer cell lines,the expression level of PAK2 and its effect on erlotinib sensitivity were also detected.Results:Compared with normal lung tissues,PAK2 showed strong cytoplasmic expression in NSCLC,and its abnormal expression was correlated with low differentiation(P=0.014),high TNM stage(P=0.011) and lymph node metastasis(P=0.040).In lung cancer cell lines,PAK2 down-regulation significantly inhibited the proliferation(P＜0.05) and invasion(P＜0.05) of lung cancer cells by inhibiting the activity of ERK signaling pathway.Furthermore,PAK2 down-regulation promote the sensitivity of lung cancer cells to erlotinib.Conclusion:PAK2 plays an important role in promoting oncogene function in NSCLC,and plays an important role in mediating drug resistance of NSCLC,which is expected to provide scientific basis for seeking individualized treatment of NSCLC.

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Memo

Memo:
National Natural Science Foundation of China（No.82003119）;国家自然科学基金(编号：82003119);辽宁省教育厅高校基本科研项目(编号：LJKZ0763)
Last Update: 2023-05-31