Abstract:
BACKGROUND:BRAF inhibitors are effective anticancer agents in BRAF-mutated melanomas. By contrast, evidences about sensitivity of thyroid carcinomas to BRAF inhibition are conflicting and it has been proposed that BRAF V600E thyroid carcinoma cells are less sensitive to BRAF inhibitors due to activation of parallel signaling pathways. This study evaluated the hypothesis that feedback activation of EGFR signaling counteracts the cytostatic activity of vemurafenib (PLX4032) in BRAF V600E thyroid carcinoma cells. METHODS:Cell proliferation, cell cycle distribution, induction of apoptosis and EGFR and AKT signaling were evaluated in thyroid carcinoma cell lines bearing the BRAF V600E mutation in response to PLX4032. RESULTS:A partial and transient cytostatic response to PLX4032 was observed in thyroid carcinoma cell lines bearing the BRAF V600E mutation, with lack of full inhibition of ERK pathway. Interestingly, the exposure of thyroid carcinoma cells to PLX4032 resulted in a rapid feedback activation of EGFR signaling with parallel activation of AKT phosphorylation. Consistently, the dual inhibition of EGFR and BRAF, through combination therapy with PLX4032 and gefitinib, resulted in prevention of EGFR phosphorylation and sustained inhibition of ERK and AKT signaling and cell proliferation. Of note, the combined treatment with gefitinib and vemurafenib or the exposure of EGFR-silenced thyroid carcinoma cells to vemurafenib induced synthetic lethality compared to single agents. CONCLUSIONS:These data suggest that the dual EGFR and BRAF blockade represents a strategy to by-pass resistance to BRAF inhibitors in thyroid carcinoma cells.
journal_name
Cancer Cell Intjournal_title
Cancer cell internationalauthors
Notarangelo T,Sisinni L,Condelli V,Landriscina Mdoi
10.1186/s12935-017-0457-zsubject
Has Abstractpub_date
2017-10-04 00:00:00pages
86issn
1475-2867pii
457journal_volume
17pub_type
杂志文章abstract:BACKGROUND:Non-small cell lung cancer (NSCLC) is the largest histological subgroup of lung cancer and has increased in prevalence in China over the past 5 years. The 5-year survival rate has remained at 15-20 %, with a median survival of 8-12 months. The tumorigenesis and progression of NSCLC is orchestrated by numerou...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-015-0236-7
更新日期:2015-09-17 00:00:00
abstract:BACKGROUND:Mutational inactivation of the von Hippel-Lindau (VHL) tumor suppressor gene has been linked to hereditary as well as sporadic clear cell renal carcinomas. The product of the VHL gene, pVHL, acts to target hypoxia-inducible factor alpha (HIF-alpha) subunits for ubiquitination and subsequent degradation. Usin...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-7-13
更新日期:2007-06-28 00:00:00
abstract:Background:This study aims to investigate the role of microRNA-92a (miR-92a) in metastasis of osteosarcoma (OS) cells in vivo and in vitro by regulatingTCF21 with the transmission of bone marrow derived mesenchymal stem cells (BMSCs). Methods:BMSCs were isolated, purified and cultured from healthy adult bone marrow ti...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0741-1
更新日期:2019-02-12 00:00:00
abstract:: At the beginning of the 21st century cancer research has reached an impasse similar to that experienced in developmental biology in the first decades of the 20th century when conflicting results and interpretations co-existed for a long time until these differences were resolved and contradictions were eliminated. In...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-12-12
更新日期:2012-03-26 00:00:00
abstract:BACKGROUND:SATB1 is a nuclear protein that has been recently reported to be a 'genome organizer' which delineates specific epigenetic modifications at target gene loci, directly up-regulating metastasis-associated genes while down-regulating tumor-suppressor genes. In this study, the level of mRNA expression of SATB1 a...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-9-18
更新日期:2009-07-30 00:00:00
abstract:BACKGROUND:Germline mutations in the von Hippel-Lindau (VHL) tumor suppressor gene predispose individuals to clear cell renal carcinomas, hemangioblastomas, and pheochromocytomas. The VHL gene product forms an ubiquitin E3 ligase complex, with regulation of hypoxia-inducible factor alpha (HIF-α) as its best known funct...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-015-0175-3
更新日期:2015-02-22 00:00:00
abstract:BACKGROUND:Serum Deprivation Protein Response (SDPR) plays an important role in formation of pulmonary alveoli. However, the functions and values of SDPR in lung cancer remain unknown. We explored prognostic value, expression pattern, and biological function of SDPR in non-small cell lung cancer (NSCLC) and KRAS-mutant...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-021-01756-8
更新日期:2021-01-12 00:00:00
abstract:Background:Dysregulation of lncRNAs is frequent in glioma and has emerged as an important mechanism involved in tumorigenesis. Previous analysis of Chinese Glioma Genome Atlas (CGGA) database indicated that LBX2-AS1 expression is one of differentially expression lncRNA between lower grade glioma (LGG) (grade II and III...
journal_title:Cancer cell international
pub_type: 杂志文章,收录出版
doi:10.1186/s12935-020-01433-2
更新日期:2020-08-26 00:00:00
abstract:BACKGROUND:Phenethyl isothiocyanate (PEITC), present naturally in cruciferous vegetables, is a chemopreventive agent. It blocks initiation and post-initiation progression of carcinogenesis. Mechanism study in human prostate cancer cells revealed that PEITC is a dual inhibitor of aberrant DNA hypermethylation and histon...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-14-30
更新日期:2014-03-31 00:00:00
abstract:Background:Endometrial carcinoma (EC) is one of the three major malignant tumors of the female reproductive system. In recent years, the incidence and mortality rate of EC have increased. B-cell translocation gene 1 (BTG1) is an anti-proliferation gene that regulates the occurrence and development of a variety of tumor...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01591-3
更新日期:2020-10-07 00:00:00
abstract::Cancer stem-like cells exhibit the multi-functional roles to survive and persist for a long period in the minimal residual disease after the conventional anti-cancer treatments. Cancer stem-like cells of solid malignant tumors which highly express CD44v8-10, the variant isoform of CD44 generated by alternative splicin...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-017-0393-y
更新日期:2017-02-13 00:00:00
abstract:BACKGROUND:Bladder cancer (BCa) is a malignant tumor that occurs on the mucosa of the bladder, in which dysregulated long non-coding RNAs (lncRNAs) are involved. This study investigated the effect of lncRNA small nucleolar RNA host gene 1 (SNHG14) on the biological characteristics of BCa cells from microRNA (miR)-211-3...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01717-7
更新日期:2021-01-22 00:00:00
abstract:BACKGROUND:MicroRNAs are 22-24 nt non-coding RNAs that bind to the 3' UTR of target mRNAs, thereby inducing mRNA degradation or inhibiting mRNA translation. Due to their implication in the regulation of post-transcriptional processes, the role of miRNAs in hepatocellular carcinoma (HCC) has been extensively studied. Ho...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-017-0386-x
更新日期:2017-02-21 00:00:00
abstract:BACKGROUND:Natural killer (NK) cells eliminate virus-infected and tumor cells through the release of perforins and granzymes; they also produce Interferon gamma (IFN-γ) and Tumor necrosis factor alpha (TNF-α), which induce apoptosis in target cells. Many tumors express Heme oxygenase 1 (HO-1), and this expression has b...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-014-0100-1
更新日期:2014-10-01 00:00:00
abstract:Background:Chimeric antigen receptors (CARs) represent a novel facet of modern day synthetic biology that exemplifies personalized medicine at work through their ability to harness and redirect a patient's immune system to fight cancer. Body:By combining the target-specificity of antibodies to the effector capabilitie...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-018-0685-x
更新日期:2018-11-14 00:00:00
abstract:Background:Carcinoma-associated fibroblasts (CAFs) are dominant components of tumor microenvironment, which has been reported to promote development, progression, and metastasis of cancer. However, the role of CAFs during adhesion process remains unknown. It has been hypothesized that CAFs contribute to adhesion to end...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0914-y
更新日期:2019-07-24 00:00:00
abstract:BACKGROUND:The expression of major histocompatibility complex class II (MHCII) antigens in both mouse and human tumors is rare, and these antigens are not easily inducible by IFN-gamma (IFNg). Since MHCII may play an important role in the development of host antitumor immune response, we explored the possibility of res...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-3-4
更新日期:2003-03-25 00:00:00
abstract:BACKGROUND:Advanced cancer and chemotherapy are both associated with immune system suppression. We initiated a clinical trial in patients receiving chemotherapy for metastatic colorectal cancer to determine if administration of GM-CSF in this setting was immunostimulatory. METHODS:Between June, 2003 and January, 2007,...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-12-2
更新日期:2012-01-23 00:00:00
abstract:Objective:This study aimed to investigate the relationship among miR-145-5p, ANGPT2 and the NOD_LIKE_RECEPTOR pathway, thereby revealing the molecular mechanism of these three factors underlying the proliferation, migration and invasion of gastric cancer (GC) epithelial cells. Methods:qRT-PCR was carried out to detect...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01483-6
更新日期:2020-08-28 00:00:00
abstract:Background:Although major driver gene have been identified, the complex molecular heterogeneity of renal cell cancer (RCC) remains unclear. Therefore, more relevant genes need to be identified to explain the pathogenesis of renal cancer. Methods:Microarray datasets GSE781, GSE6344, GSE53000 and GSE68417 were downloade...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01405-6
更新日期:2020-07-21 00:00:00
abstract:Background:Glioma is the most common central nervous system (CNS) tumour. p62, an important autophagy adaptor, plays a crucial role in cancer. However, the role of p62 in the progression of glioma is poorly characterized. Methods:We examined the expression of p62 in glioma tissues and cell lines. Then we investigated ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-1004-x
更新日期:2019-11-06 00:00:00
abstract:BACKGROUND:Epithelial mesenchymal transition (EMT) mediated by TGF-β pays an important role in malignant tumor acquired abilities of migration and invasion. Our previous study showed that the extract of Stellera chamaejasme L. (ESC) was against proliferation of a variety of tumor cells, but there were no studies in the...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-015-0265-2
更新日期:2015-12-10 00:00:00
abstract:Background:Accumulating studies showed that long noncoding RNAs (lncRNAs) played vital roles in cancer progression. LncRNA MIR4435-2HG was proved to act as an oncogene in various tumors. However, the underlying function of MIR4435-2HG in ovarian cancer (OC) remains unclear. Methods:The expression levels of MIR4435-2HG...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01227-6
更新日期:2020-05-01 00:00:00
abstract:Background:Abnormally expressed circular RNAs (circRNAs) are implicated in the development and treatment of gastric cancer (GC). Previous study has reported that hsa_circ_0003159 is expressed in GC. However, the role and mechanism of hsa_circ_0003159 in GC progression remain unclear. Methods:GC tissues and normal tiss...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-1119-0
更新日期:2020-02-19 00:00:00
abstract:BACKGROUND:Mammaglobin (MAM) has been used as a specific molecular marker for breast cancer diagnosis. Recently, several groups of researchers proposed a number of therapeutic strategies targeting this molecule. Some of the strategies are based upon an essential but not demonstrated hypothesis - mammaglobin is associat...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-9-8
更新日期:2009-03-23 00:00:00
abstract:Background:Hepatocellular carcinoma (HCC) is one of the most common malignancies with a high morbidity and mortality worldwide. MicroRNAs are key regulators of HCC genesis. However, the regulatory role and underlying mechanisms of microRNA in HCC is still limited. Methods:Cyclin B1 (CCNB1) mRNA levels were examined in...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0729-x
更新日期:2019-01-14 00:00:00
abstract:Background:Long noncoding RNAs (lncRNAs) are involved in the tumorigenesis and progression of human cancers, including renal cell carcinoma (RCC). Small nucleolar RNA host gene 4 (SNHG4) is reported to play an essential role in tumor growth and progression. However, the molecular mechanisms and function of SNHG4 in RCC...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01606-z
更新日期:2020-10-19 00:00:00
abstract:Background:MicroRNAs (miRNAs) play key roles in tumorigenesis and progression of gastric cancer (GC). miR-1269 has been reported to be upregulated in several cancers and plays a crucial role in carcinogenesis and cancer progression. However, the biological function of miR-1269 in human GC and its mechanism remain uncle...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-1026-4
更新日期:2019-11-21 00:00:00
abstract:BACKGROUND:CircRNAs play crucial roles in multiple tumours. However, the functions of most circRNAs in cervical cancer remain unclear. METHODS:This study collected GSE113696 data from the GEO database to search for differentially expressed circRNAs in cervical cancer. Quantitative reverse transcription PCR was used to...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01736-4
更新日期:2021-01-07 00:00:00
abstract:BACKGROUND:Hepatocellular carcinoma is a common cancer, ranking third in cancer-associated deaths. An important cause of cancer patients' mortality is metastasis. At the start of metastasis progression, there is an epithelial-mesenchymal transition, characterized by matrix degradation, junction reductions and vessels f...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-016-0370-x
更新日期:2017-01-04 00:00:00