Early Growth Response Protein-1 Involves in Transforming Growth factor-β1 Induced Epithelial-Mesenchymal Transition and Inhibits Migration of Non-Small-Cell Lung Cancer Cells

Lung cancer has a high mortality rate in men and women worldwide. Approximately 15% of diagnosed patients with this type of cancer do not exceed the 5-year survival rate. Unfortunately, diagnosis is established in advanced stages, where other tissues or organs can be affected. In recent years, lineage-specific transcription factors have been associated with a variety of cancers. One such transcription factor possibly regulating cancer is RUNX2, the master gene of early and late osteogenesis. In thyroid and prostate cancer, it has been reported that RUNX2 regulates expression of genes important in tumor cell migration and invasion. In this study, we report on RUNX2/ p57 overexpression in 16 patients with primary non-small cell lung cancer and/or metastatic lung cancer associated with H3K27Ac at P1 gene promoter region. In some patients, H3K4Me3 enrichment was also detected, in addition to WDR5, MLL2, MLL4, and UTX enzyme recruitment, members of the COMPASS-LIKE complex. Moreover, transforming growth factor-β induced RUNX2/ p57 overexpression and specific RUNX2 knockdown supported a role for RUNX2 in epithelial mesenchymal transition, which was demonstrated through loss of function assays in adenocarcinoma A549 lung cancer cell line. Furthermore, RUNX2 increased expression of epithelial mesenchymal transition genes VIMENTIN, TWIST1, and SNAIL1, which reflected increased migratory capacity in lung adenocarcinoma cells.

Download Full-text

miR-330-3p controls cell proliferation by targeting early growth response 2 in non-small-cell lung cancer

Acta Biochimica et Biophysica Sinica ◽

10.1093/abbs/gmv032 ◽

2015 ◽

Vol 47 (6) ◽

pp. 431-440 ◽

Cited By ~ 21

Author(s):

Xuzhi Liu ◽

Hanbing Shi ◽

Bo Liu ◽

Jianing Li ◽

Yaxin Liu ◽

...

Keyword(s):

Lung Cancer ◽

Cell Proliferation ◽

Small Cell Lung Cancer ◽

Cell Lung Cancer ◽

Growth Response ◽

Early Growth ◽

Small Cell ◽

Small Cell Lung ◽

Early Growth Response

Download Full-text

ID1 mediates resistance to osimertinib in EGFR T790M-positive non-small cell lung cancer through epithelial–mesenchymal transition

BMC Pulmonary Medicine ◽

10.1186/s12890-021-01540-4 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Kejun Liu ◽

Xianwen Chen ◽

Ligang Wu ◽

Shiyuan Chen ◽

Nianxin Fang ◽

...

Keyword(s):

Lung Cancer ◽

Cell Cycle ◽

Small Cell Lung Cancer ◽

Cell Line ◽

Epithelial Mesenchymal Transition ◽

Small Cell ◽

Small Cell Lung ◽

Mesenchymal Transition ◽

Egfr T790m ◽

E Cadherin

Abstract Background ID1 is associated with resistance to the first generation of EGFR tyrosine kinase inhibitors (EGFR-TKIs) in non-small cell lung cancer (NSCLC). However, the effect of ID1 expression on osimertinib resistance in EGFR T790M-positive NSCLC is not clear. Methods We established a drug-resistant cell line, H1975/OR, from the osimertinib-sensitive cell line H1975. Alterations in ID1 protein expression and Epithelial–mesenchymal transition (EMT)-related proteins were detected with western blot analysis. RT-PCR was used to evaluate the differences of gene mRNA levels. ID1 silencing and overexpression were used to investigate the effects of related gene on osimertinib resistance. Cell Counting Kit-8 (CCK8) was used to assess the proliferation rate in cells with altered of ID1 expression. Transwell assay was used to evaluate the invasion ability of different cells. The effects on the cell cycle and apoptosis were also compared using flow cytometry. Results In our study, we found that in osimertinib-resistant NSCLC cells, the expression level of the EMT-related protein E-cadherin was lower than that of sensitive cells, while the expression level of ID1 and vimentin were higher than those of sensitive cells. ID1 expression levels was closely related to E-cadherin and vimentin in both osimertinib-sensitive and resistant cells. Alteration of ID1 expression in H1975/OR cells could change the expression of E-cadherin. Downregulating ID1 expression in H1975/OR cells could inhibit cell proliferation, reduce cell invasion, promote cell apoptosis and arrested the cell cycle in the G1/G0 stage phase. Our study suggests that ID1 may induce EMT in EGFR T790M-positive NSCLC, which mediates drug resistance of osimertinib. Conclusions Our study revealed the mechanism of ID1 mediated resistance to osimertinib in EGFR T790M-positive NSCLC through EMT, which may provide new ideas and methods for the treatment of EGFR mutated NSCLC after osimertinib resistance.

Download Full-text

ARHGAP10 inhibits the epithelial–mesenchymal transition of non-small cell lung cancer by inactivating PI3K/Akt/GSK3β signaling pathway

Cancer Cell International ◽

10.1186/s12935-021-02022-7 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Lan-Lan Lin ◽

Fan Yang ◽

Dong-Huan Zhang ◽

Cong Hu ◽

Sheng Yang ◽

...

Keyword(s):

Lung Cancer ◽

Small Cell Lung Cancer ◽

Signaling Pathway ◽

Cell Lung Cancer ◽

Rho Gtpase ◽

Epithelial Mesenchymal Transition ◽

Essential Element ◽

Small Cell ◽

Small Cell Lung ◽

Mesenchymal Transition

Abstract Background Rho GTPase activating protein 10 (ARHGAP10) has been implicated as an essential element in multiple cellular process, including cell migration, adhesion and actin cytoskeleton dynamic reorganization. However, the correlation of ARHGAP10 expression with epithelial–mesenchymal transition (EMT) in lung cancer cells is unclear and remains to be elucidated. Herein, we investigated the relationship between the trait of ARHGAP10 and non-small cell lung cancer (NSCLC) pathological process. Methods Immunohistochemistry was conducted to evaluate the expression of ARHGAP10 in NSCLC tissues. CCK-8 assays, Transwell assays, scratch assays were applied to assess cell proliferation, invasion and migration. The expression levels of EMT biomarkers and active molecules involved in PI3K/Akt/GSK3β signaling pathway were examined through immunofluorescence and Western blot. Results ARHGAP10 was detected to be lower expression in NSCLC tissues compared with normal tissues from individuals. Moreover, overexpression of ARHGAP10 inhibited migratory and invasive potentials of A549 and NCI-H1299 cells. In addition, ARHGAP10 directly mediated the process of EMT via PI3K/Akt/GSK3β pathway. Meanwhile, activation of the signaling pathway of insulin-like growth factors-1 (IGF-1) reversed ARHGAP10 overexpression regulated EMT in NSCLC cells. Conclusion ARHGAP10 inhibits the epithelial–mesenchymal transition in NSCLC via PI3K/Akt/GSK3β signaling pathway, suggesting agonist of ARHGAP10 may be an optional remedy for NSCLC patients than traditional opioids.

Download Full-text