scholarly journals TPPP3 Promotes Cell Proliferation, Invasion and Tumor Metastasis via STAT3/ Twist1 Pathway in Non-Small-Cell Lung Carcinoma

2018 ◽  
Vol 50 (5) ◽  
pp. 2004-2016 ◽  
Author(s):  
Yintao Li ◽  
Menglin Bai ◽  
Yali Xu ◽  
Weiwei Zhao ◽  
Naijia Liu ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Cell Migration ◽  
Tumor Metastasis ◽  
Small Cell Lung Carcinoma ◽  
Small Cell ◽  
Migration And Invasion ◽  
Small Cell Lung ◽  
Cell Lung Carcinoma

Background/Aims: Non-small-cell lung carcinoma (NSCLC) is the leading cause of cancer death, with tumor metastasis being mainly responsible for lung cancer-associated mortality. Our previous studies have found that tubulin polymerization promoting protein family member 3 (TPPP3) acted as a potential oncogene in NSCLC. Little is known about the function of TPPP3 in tumor metastasis. Methods: RT-qPCR and IHC were used to investigate the expression of TPPP3 in NSCLC tissues. CCK8 assay and transwell assay were used to measure proliferation and migration of NSCLC cells in vitro and xenograft model was performed to assess the tumor growth and metastasis in vivo. Results: In the present study, upregulation of TPPP3 was found to correlate with an increased metastasis capability of NSCLC. Ectopic expression of TPPP3 significantly enhanced cell proliferation in vitro and promoted tumor growth in vivo. Furthermore, overexpression of TPPP3 remarkably promoted NSCLC cell migration and invasion along with the upregulation of Twist1 both in vitro and in vivo. Further investigations showed that activation of STAT3 was required for TPPP3-mediated upregulation of Twist1, cell migration and invasion. A strong positive correlation between TPPP3 and Twist1 expression was identified in NSCLC tissues. Patients with low TPPP3 or low Twist1 in NSCLC tissues had a better prognosis with longer overall survival (OS) and disease-free survival (DFS). Conclusion: Overall, this study demonstrates that TPPP3 promotes the metastasis of NSCLC through the STAT3/Twist1 pathway.

scholarly journals miR-769-5p suppressed cell proliferation, migration and invasion by targeting TGFBR1 in non-small cell lung carcinoma

Oncotarget ◽  
2017 ◽  
Vol 8 (69) ◽  
pp. 113558-113570 ◽  
Author(s):  
Zhao Yang ◽  
Jin He ◽  
Peng Gao ◽  
Yi Niu ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Lung Carcinoma ◽  
Small Cell Lung Carcinoma ◽  
Small Cell ◽  
Migration And Invasion ◽  
Small Cell Lung ◽  
Cell Lung Carcinoma

scholarly journals miR-219a-5p enhances the radiosensitivity of non-small cell lung cancer cells through targeting CD164

2020 ◽  
Vol 40 (7) ◽  
Author(s):  
Tao Wei ◽  
Shan Cheng ◽  
Xiao Na Fu ◽  
Lian Jie Feng
Keyword(s):  
Lung Cancer ◽  
Lung Tissue ◽  
Small Cell Lung Carcinoma ◽  
Small Cell ◽  
Small Cell Lung ◽  
Down Regulation ◽  
Cell Lung Carcinoma ◽  
Lung Cancer Patients

Abstract Lung cancer is one of the leading causes of cancer-associated mortality. Non-small cell lung carcinoma (NSCLC) accounts for 70–85% of the total cases of lung cancer. Radioresistance frequently develops in NSCLC in the middle and later stages of radiotherapy. We investigated the role of miR-219a-5p in radioresistance of NSCLC. miR-219a-5p expression in serum and lung tissue of lung cancer patients was lower than that in control. Compared with radiosensitive (RS) NSCLC patients, miR-219a-5p expression was decreased in serum and lung tissue in radioresistant patients. miR-219a-5p expression level was negatively associated with radioresistance in NSCLC cell lines. Up-regulation of miR-219a-5p increased radiosensitivity in radioresistant NSCLC cells in vitro and in vivo. Down-regulation of miR-219a-5p decreased radiosensitivity in radiosensitive A549 and H358 cells. miR-219a-5p could directly bind in the 3′UTR of CD164 and negatively regulated CD164 expression. CD164 expression was higher in radioresistant NSCLC tissues than RS tissues. Up-regulation of CD164 significantly inhibited miR-219a-5p-induced regulation of RS in radioresistant A549 and H358 cells. Down-regulation of CD164 significantly inhibited the effect of anti-miR-219a-5p on radiosensitive A549 and H358 cells. miR-219a-5p or down-regulation of CD164 could increase apoptosis and γ-H2A histone family member X (γ-H2AX) expression in radioresistant cells in vitro and in vivo. Up-regulation of CD164 could inhibit the effect of miR-219a-5p on apoptosis and γ-H2AX expression. Our results indicated that miR-219a-5p could inhibit CD164, promote DNA damage and apoptosis and enhance irradiation-induced cytotoxicity. The data highlight miR-219a-5p/CD164 pathway in the regulation of radiosensitivity in NSCLC and provide novel targets for potential intervention.

scholarly journals MiR-224 Promotes Lymphatic Metastasis by Targeting ANGPTL1 in Non-Small-Cell Lung Carcinoma

2021 ◽  
Author(s):  
Haibo Han ◽  
Bo Pan ◽  
Fan Liang ◽  
Lina Wu ◽  
Xijuan Liu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Lymphatic Metastasis ◽  
Small Cell ◽  
Luciferase Reporter ◽  
Migration And Invasion ◽  
Small Cell Lung ◽  
Cell Lung Carcinoma ◽  
Potential Marker

Abstract Background: MicroRNAs can regulates tumor metastasis either as an oncomiR or suppressor miRNA. Here, we investigate the role of miR-224 in lymphatic metastasis of non-small-cell lung cancer (NSCLC). Methods: The expression of miR-224 was demonstrated by a validation cohort of 156 lung cancer patients (77 cases with lymphatic metastasis) by q-PCR. In vitro and in vivo experiments were performed to study the malignant phenotype after upregulation and inhibition of miR-224 expression. Furthermore, the direct target genes of miR-224 were determined by a luciferase reporter assay. Results: miR-224 was identified as a high expression miRNA in the tumor tissues with lymphatic metastasis) with an area under the receiver operating characteristic curve (AUC) of 0.57. Forced expression of miR-224 in H1299 cells promoted not only the cell viability, plate clone formation, migration and invasion in vitro, but also tumor growth and lung metastasis in vivo. Consistently, inhibition of miR-224 suppressed the malignant characters both in vitro and in vivo. Molecular mechanism research suggested that miR-422a targeted the ANGPTL1 as a novel tumor suppressor.Conclusions: The present study demonstrates that miR-224 is a potential marker for the prediction of lymphatic metastasis of NSCLC. And application of miR-224 may help for prophylactic intervention of NSCLC in clinical practice.

Hsa_circ_0003288 facilitates tumor progression by targeting miR-145 in non–small cell lung cancer cells

2021 ◽  
pp. 1-9
Author(s):  
Li-Na Pan ◽  
Yun-Fang Ma ◽  
Jia-An Hu ◽  
Zhi-Hong Xu
Keyword(s):  
Lung Cancer ◽  
Cell Proliferation ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Small Cell ◽  
Migration And Invasion ◽  
Small Cell Lung

Circular RNA (circRNA) has been shown to participate in various tumors, including lung cancer. In the present study, we explored the expression and functional relevance of hsa_circ_0003288 in human non-small cell lung cancer (NSCLC). We verified that hsa_circ_0003288 expression was upregulated in lung cancer tissues and cell lines. Overexpression of hsa_circ_0003288 dramatically promoted lung cancer cell proliferation, colony formation, inhibited apoptosis, and increased cell migration and invasion in vitro. Xenograft experiments showed that hsa_circ_0003288 overexpression accelerated tumor growth in vivo. Mechanistically, hsa_circ_0003288 negatively regulated miR-145 to exert the oncogenic role in lung cancer. Overexpression of miR-145 decreased cell proliferation, induced apoptosis, and suppressed migration and invasion in lung cancer. Additionally, miR-145 co-transfection abolished the oncogenic role of hsa_circ_0003288. Collectively, these findings identified a novel regulatory role of hsa_circ_0003288/miR-145 axis in the progression of NSCLC.

scholarly journals The role of Rac1 in the regulation of NF-kB activity, cell proliferation, and cell migration in non-small cell lung carcinoma

2012 ◽  
Vol 13 (8) ◽  
pp. 647-656 ◽  
Author(s):  
Adam Gastonguay ◽  
Tracy Berg ◽  
Andrew D. Hauser ◽  
Nathan Schuld ◽  
Ellen Lorimer ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Cell Migration ◽  
Lung Carcinoma ◽  
Small Cell Lung Carcinoma ◽  
Small Cell ◽  
Small Cell Lung ◽  
Cell Lung Carcinoma

scholarly journals Suppression of Non-Small Cell Lung Cancer Growth and Metastasis by a Novel Small Molecular Activator of RECK

2018 ◽  
Vol 45 (5) ◽  
pp. 1807-1817 ◽  
Author(s):  
Jia Shen ◽  
Banghua Wang ◽  
Tao Zhang ◽  
Ni Zhu ◽  
Zexia Wang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cell Cycle ◽  
Cell Proliferation ◽  
Cell Migration ◽  
Small Cell Lung Cancer ◽  
Cell Invasion ◽  
Small Cell ◽  
Small Cell Lung

Background/Aims: Reversion-inducing cysteine-rich protein with kazal motifs (RECK) is a novel tumor suppressor gene that is critical for regulating tumor cell invasion and metastasis. The expression of RECK is dramatically down-regulated in human cancers. Harmine, a tricyclic compound from Peganum harmala, has been shown to have potential anti-cancer activity. Methods: Cell proliferation assay (CCK-8 cell viability assay), cell cycle analysis (detection by flow cytometry), apoptosis staining assay (TUNEL staining), cell migration assay and invasion assay (transwell assay) were carried out to investigate the Harmine’s efficacy on non-small cell lung cancer (NSCLC) cells in vitro. A549-luciferase cell orthotropic transplantation xenograft mouse model was used to determine the effect of Harmine treatment on NSCLC in vivo. Western blotting analysis of cell growth and metastasis related signal pathways was conducted to investigate the molecular mechanism of Harmine’s inhibitory effect on NSCLC. Results: Harmine treatment effectively inhibited cell proliferation and induced the G1/S cell cycle arrest of NSCLC cells. Further study proved that Harmine treatment led to apoptosis induction. Furthermore, treatment with NSCLC cells with Hamine resulted in decreased cell migration and cell invasion in vitro. More importantly, Harmine treatment significantly suppressed the NSCLC tumor growth and metastasis in mouse xenograft model in vivo. Mechanistically, in Harmine-treated NSCLC cells, RECK expression and its downstream signaling cascade were dramatically activated. As a consequence, the expression level of MMP-9 and E-cadherin were significantly decreased. Conclusion: These findings identify Harmine as a promising activator of RECK signaling for metastatic NSCLC treatment.

Sign in / Sign up

Export Citation Format

Share Document