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Specialty: Cancer & Oncology
Cancer: Lung Cancer

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Total 651 results found since Jan 2013.

Role of the NRP-1-mediated VEGFR2-independent pathway on radiation sensitivity of non-small cell lung cancer cells
ConclusionsWe demonstrated that when VEGFR2 was inhibited, NRP-1 appeared to regulate RAD51 expression through the VEGFR2-independent ABL-1 pathway, consequently regulating radiation sensitivity. In addition, the combined inhibition of VEGFR2 and NRP-1 appears to sensitize cancer cells to radiation.
Source: Journal of Cancer Research and Clinical Oncology - June 14, 2018 Category: Cancer & Oncology Source Type: research

RAD52 motif ‑containing protein 1 promotes non‑small cell lung cancer cell proliferation and survival via cell cycle regulation.
This study aimed to investigate the role of RDM1 in the progression of non‑small cell lung cancer (NSCLC). We found elevated RDM1 mRNA and protein expression in NSCLC tissues and cell lines compared to levels in normal lung cells. RDM1 protein expression in lung cancer tissues was found to correlate with tumor size, histological differentiation, lymph node metastasis and tumor‑node‑metastasis (TNM) stage. Knockdown of the RDM1 gene with siRNA significantly reduced the cellular proliferation rate and increased apoptosis in the human NSCLC cell line, NCI‑H1299. Compared to wild‑type NCI‑H1299 cells, RDM1 knockdow...
Source: Oncology Reports - June 1, 2018 Category: Cancer & Oncology Tags: Oncol Rep Source Type: research

Induction of anaplastic lymphoma kinase (ALK) as a novel mechanism of EGFR inhibitor resistance in head and neck squamous cell carcinoma patient-derived models.
Abstract Head and neck squamous cell carcinoma (HNSCC) currently only has one FDA-approved cancer intrinsic targeted therapy, the epidermal growth factor receptor (EGFR) inhibitor cetuximab, to which only approximately 10% of tumors are sensitive. In order to extend therapy options, we subjected patient-derived HNSCC cells to small-molecule inhibitor and siRNA screens, first, to find effective combination therapies with an EGFR inhibitor, and second, to determine a potential mechanistic basis for repurposing the FDA approved agents for HNSCC. The combinations of EGFR inhibitor with anaplastic lymphoma kinase (ALK)...
Source: Cancer Biology and Therapy - June 1, 2018 Category: Cancer & Oncology Authors: Ouyang X, Barling A, Lesch A, Tyner JW, Choonoo G, Zheng C, Jeng S, West TM, Clayburgh D, Courtneidge SA, McWeeney SK, Kulesz-Martin M Tags: Cancer Biol Ther Source Type: research

YdjC chitooligosaccharide deacetylase homolog induces keratin reorganization in lung cancer cells: involvement of interaction between YDJC and CDC16.
In this study, we investigated the role and molecular mechanisms of YdjC chitooligosaccha- ride deacetylase homolog (YDJC) in sphingosylphosphorylcholine (SPC)-induced phosphorylation and reorganization of K8, and migration and invasion (SPC-induced events). SPC induced expression of YDJC in a dose- and time-dependent manner. Gene silencing of YDJC suppressed SPC-induced events. YDJC overexpression induced the SPC-induced events. YDJC deacetylase dominant negative mutant (YDJCD13A) did not induce SPC-induced events. YDJC siRNA reduced ERK activation and overexpression of YDJC induced ERK activation. The siRNA of ERK1 or ER...
Source: Oncotarget - May 31, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Targeting ALK in pediatric RMS does not induce antitumor activity in vivo
ConclusionsWhile ALK appears to be a relevant target in RMS in vitro, targeting this kinase in vivo yields no therapeutic efficacy, warranting extreme caution when considering the use of these agents in pediatric RMS patients.
Source: Cancer Chemotherapy and Pharmacology - May 31, 2018 Category: Cancer & Oncology Source Type: research

COP9 signalosome subunit 5 regulates cancer metastasis by deubiquitinating SNAIL.
In this study, we identified COP9 signalosome subunit 5 (COPS5) as a deubiquitinating enzyme of SNAIL by using siRNA library screening. COPS5 downregulation significantly reduced the expression of SNAIL and impaired the metastatic potential of lung cancer cells both in vitro and in vivo. Importantly, we demonstrated that COPS5 binds to SNAIL and stabilizes its expression by deubiquitination. Furthermore, we observed the positive correlation between COPS5 and SNAIL expression in the clinical tissue samples of lung adenocarcinomas by using tissue microarray analysis. These findings provide strong evidence that COPS5 can be a...
Source: Oncotarget - May 15, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Expression of HNF4G and its potential functions in lung cancer.
Authors: Wang J, Zhang J, Xu L, Zheng Y, Ling D, Yang Z Abstract The hepatocyte nuclear factor 4 gamma (HNF4G), a member of orphan nuclear receptors, is up-regulated and functions as an oncoprotein in bladder cancer. In the present study, we observed that HNF4G expression was elevated in lung cancer tissues as compared to adjacent normal lung tissues. The expression of HNF4G protein was correlated with the tumor size and the prognosis of patients. Transfection with a small interference RNA (siRNA) targeting HNF4G in two lung cancer cell lines (H358 and H292 cells) significantly inhibited cell proliferation via arre...
Source: Oncotarget - May 4, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

MID1-PP2A complex functions as new insights in human lung adenocarcinoma.
CONCLUSIONS: We demonstrated that the MID1-PP2A complex plays an important role in lung adenocarcinoma, influencing cell cycle progression, proliferation and apoptosis. Our findings showed a novel molecular mechanism of lung tumorigenesis that may provide new insights for anti-tumor therapies. PMID: 29450633 [PubMed - indexed for MEDLINE]
Source: Clinical Lung Cancer - May 1, 2018 Category: Cancer & Oncology Authors: Zhang L, Li J, Lv X, Guo T, Li W, Zhang J Tags: J Cancer Res Clin Oncol Source Type: research

Novel drug-resistance mechanisms of pemetrexed-treated non-small cell lung cancer.
In this study, we explored new drug resistance mechanisms of PEM-treated NSCLC using two combinations of parental and PEM-resistant NSCLC cell lines from PC-9 and A549. PEM increased the apoptosis cells in parental PC-9 and the senescent cells in parental A549. However, such changes were not observed in the respective PEM-resistant cell lines. Quantitative RT-PCR analysis revealed that, besides an increased gene expression of thymidylate synthase in PEM-resistant PC-9 cells, the solute carrier family 19 member1 (SLC19A1) gene expression was markedly decreased in PEM-resistant A549 cells. The siRNA-mediated knockdown of SLC...
Source: Oncotarget - April 25, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Inositol trisphosphate receptor type 3-mediated enhancement of EGFR and MET co-targeting efficacy in non-small cell lung cancer detected by 18F-fluorothymidine.
CONCLUSIONS: Our findings indicate that 18F-FLT PET/CT is able to detect the enhanced efficacy of EGFR and MET inhibitors in oncogene-driven NSCLC and that such enhancement is mediated by IP3R3 through its interaction with K-Ras. PMID: 29618618 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - April 4, 2018 Category: Cancer & Oncology Authors: Iommelli F, De Rosa V, Terlizzi C, Monti M, Panico M, Fonti R, Del Vecchio S Tags: Clin Cancer Res Source Type: research

Antitumor activity of kinetochore-associated protein 2 siRNA against lung cancer patient-derived tumor xenografts.
Authors: Makita Y, Teratani M, Murata S, Hoashi Y, Matsumoto S, Kawamata Y Abstract It has been widely reported that patient-derived tumor xenografts (PDXs) are more similar to tumor tissues than conventional cancer cell lines. Kinetochore-associated protein 2 (KNTC2) is known to be upregulated specifically in tumor tissues of cancer patients and is recognized as a potential target for cancer therapy. Previously, in vivo antitumor activities of KNTC2 short interfering RNA encapsulated into a lipid nanoparticle (KNTC2-LNP) were reported in orthotopic hepatocellular carcinoma mouse models. However, it remains unclear...
Source: Oncology Letters - March 16, 2018 Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

Knockdown of EIF5A2 inhibits the malignant potential of non-small cell lung cancer cells.
Authors: Chen C, Zhang B, Wu S, Song Y, Li J Abstract Eukaryotic translation initiation factor 5A2 (EIF5A2) has been demonstrated to be upregulated in numerous types of human cancer and is associated with cancer progression. However, the expression and role of EIF5A2 in non-small cell lung cancer (NSCLC) remains unclear. In the present study, the role of EIF5A2 in NSCLC was investigated, in addition to the underlying molecular mechanisms by which EIF5A2 acts. Relative EIF5A2 expression levels were determined in NSCLC cells and compared with levels in non-cancerous lung tissues. Short interfering (si)RNA targeted ag...
Source: Oncology Letters - March 16, 2018 Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

ICAM3 mediates inflammatory signaling to promote cancer cell stemness
In this study, we present a medium throughput siRNA screen platform to identify inflammation genes that regulate cancer cell stemness. We identified several novel candidates that decrease OCT4 expression and reduce the ALDH  + subpopulation both of which are characteristic of stemness. Furthermore, one of the novel candidates ICAM3 up-regulates in the ALDH + subpopulation, the side population and the developed spheres. ICAM3 knockdown reduces the side population, sphere formation and chemo-resistance in MDA-MB-231 human breast cancer cells and A549 lung cancer cells.
Source: Cancer Letters - February 22, 2018 Category: Cancer & Oncology Authors: Wenzhi Shen, Junling Xie, Shuangtao Zhao, Renle Du, Xiaohe Luo, Huiwen He, Shan Jiang, Na Hao, Chong Chen, Chunlei Guo, Yanhua Liu, Yanan Chen, Peiqing Sun, Shengyong Yang, Na Luo, Rong Xiang, Yunping Luo Tags: Original Articles Source Type: research

Synergistic effect of targeting dishevelled-3 and the epidermal growth factor receptor-tyrosine kinase inhibitor on mesothelioma cells in vitro.
Authors: Moriyama G, Tanigawa M, Sakai K, Hirata Y, Kikuchi S, Saito Y, Kyoyama H, Matsuda K, Seike M, Gemma A, Uematsu K Abstract It was previously revealed that Wnt signaling is activated in mesothelioma cells. Although epidermal growth factor receptor (EGFR) is expressed in mesothelioma cells, EGFR-tyrosine kinase inhibitors (TKIs) are not effective for mesothelioma treatment. However, in non-small cell lung cancer, the blocking of Wnt signaling has been identified to enhance the anticancer effect of EGFR-TKIs. To confirm the anticancer effect of blocking Wnt signaling in combination with EGFR-TKI treatment in m...
Source: Oncology Letters - February 7, 2018 Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

Knockdown of TBRG4 affects tumorigenesis in human H1299 lung cancer cells by regulating DDIT3, CAV1 and RRM2.
In conclusion, TBRG4 serves a role in the tumorigenesis of lung cancer via deregulation of DDIT3, CAV1 and RRM2. The results of the present study may be important in contributing to our understanding of TBRG4 as a target for lung cancer treatment. PMID: 29387213 [PubMed]
Source: Oncology Letters - February 3, 2018 Category: Cancer & Oncology Tags: Oncol Lett Source Type: research