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 unclear and need to be further elucidated. Methods:The expression of miR-1269 in GC tissues and cell lines was detected by quantitative real-time PCR (qRT-PCR). Target prediction programs (TargetScanHuman 7.2 and miRBase) and a dual-luciferase reporter assay were used to confirm that Ras-association domain family 9 (RASSF9) is a target gene of miR-1269. The expression of RASSF9 was measured by qRT-PCR and Western blotting in GC tissues. MTT and cell counting assays were used to explore the effect of miR-1269 on GC cell proliferation. The cell cycle and apoptosis were measured by flow cytometry. RASSF9 knockdown and overexpression were used to further verify the function of the target gene. Results:We found that miR-1269 expression was upregulated in human GC tissues and cell lines. The overexpression of miR-1269 promoted GC cell proliferation and cell cycle G1-S transition and suppressed apoptosis. The inhibition of miR-1269 inhibited cell growth and G1-S transition and induced apoptosis. miR-1269 expression was inversely correlated with RASSF9 expression in GC tissues. RASSF9 was verified to be a direct target of miR-1269 by using a luciferase reporter assay. The overexpression of miR-1269 decreased RASSF9 expression at both the mRNA and protein levels, and the inhibition of miR-1269 increased RASSF9 expression. Importantly, silencing RASSF9 resulted in the same biological effects in GC cells as those induced by overexpression of miR-1269. Overexpression of RASSF9 reversed the effects of miR-1269 overexpression on GC cells. Both miR-1269 overexpression and RASSF9 silencing activated the AKT signaling pathway, which modulated cell cycle regulators (Cyclin D1 and CDK2). In contrast, inhibition of miR-1269 and RASSF9 overexpression inhibited the AKT signaling pathway. Moreover, miR-1269 and RASSF9 also regulated the Bax/Bcl-2 signaling pathway. Conclusions:Our results demonstrate that miR-1269 promotes GC cell proliferation and cell cycle G1-S transition by activating the AKT signaling pathway and inhibiting cell apoptosis via regulation of the Bax/Bcl-2 signaling pathway by targeting RASSF9. Our findings indicate an oncogenic role of miR-1269 in GC pathogenesis and the potential use of miR-1269 in GC therapy.
journal_name
Cancer Cell Intjournal_title
Cancer cell internationalauthors
Liu WL,Wang HX,Shi CX,Shi FY,Zhao LY,Zhao W,Wang GHdoi
10.1186/s12935-019-1026-4subject
Has Abstractpub_date
2019-11-21 00:00:00pages
308issn
1475-2867pii
1026journal_volume
19pub_type
杂志文章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:Abnormal expressions of long noncoding RNAs (lncRNAs) are very common in clear cell renal cell carcinoma (ccRCC), and some of these have been reported to be highly correlated with prognosis of ccRCC patients. Methods:"edgeR" AND "DEseq" R packages were used to explore differentially expressed genes (DEGs) b...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0928-5
更新日期:2019-08-05 00:00:00
abstract:Background:The staging system of nasopharyngeal carcinoma (NPC) has close relationship with the degree of cell differentiation, but most NPC patients remain undiagnosed until advanced phases. Novel metabolic markers need to be characterized to support diagnose at an early stage. Methods:Metabolic characteristics of na...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0759-4
更新日期:2019-02-18 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:We studied the role of caspase-2 in apoptosis induction by taxanes (paclitaxel, novel taxane SB-T-1216) in breast cancer cells using SK-BR-3 (nonfunctional p53, functional caspase-3) and MCF-7 (functional p53, nonfunctional caspase-3) cell lines. RESULTS:Both taxanes induced apoptosis in SK-BR-3 as well as ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-13-42
更新日期:2013-05-15 00:00:00
abstract:Background:Recent studies have emphasized the important prognostic role of long noncoding RNAs (lncRNAs) in various types of cancers. Here we conducted a meta-analysis to investigate whether lncRNA HOXA11-AS can be served as a prognostic biomarker in human cancers. Patients/methods:We systematically searched PubMed, E...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-017-0498-3
更新日期:2018-01-03 00:00:00
abstract:Background:Despite improvements in nasopharyngeal carcinoma (NPC) treatment, patients with recurrence and metastasis still have a poor prognosis. Thus, the identification of novel biomarkers is urgently needed to predict outcomes and tailor treatment for NPC. Methods:Four data sets were downloaded from Gene Expression...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01587-z
更新日期:2020-10-12 00:00:00
abstract:BACKGROUND:Increased expression of voltage-gated sodium channels (VGSCs) have been implicated with strong metastatic potential of human breast cancer in vitro and in vivo where the main culprits are cardiac isoform Nav1.5 and its 'neonatal' splice variant, nNav1.5. Several factors have been associated with Nav1.5 and n...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-017-0442-6
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Blockade of the angiotensin (ANG) II type 1 receptor (AT1R) inhibits tumour growth in several cancers, including colorectal cancer (CRC) liver metastases. While AT1R blockade has been extensively studied, the potential of targeting the antagonistically acting AT2R in cancer has not been investigated. This st...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-10-19
更新日期:2010-06-28 00:00:00
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:G protein-coupled receptor family C group 5 member A (GPRC5A), a retinoic acid-inducible gene, is a lung tumor suppressor. Previously, we showed that repression of GPRC5A expression was associated with pathologic differentiation grade of oral squamous cell carcinomas (OSCC) and overexpression of GPRC5A gene ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-017-0406-x
更新日期:2017-03-02 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:Some studies have investigated the prognostic value exhibited by the Prognostic Nutritional Index (PNI) in patients suffering diffuse large B-cell lymphoma (DLBCL), but varying results were obtained. In order to determine the specific prognostic value more accurately, a meta-analysis was conducted in this st...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-020-01535-x
更新日期:2020-09-15 00:00:00
abstract:OBJECTIVE:The objective of this study was to evaluate the anti-tumor effects of Ad/gTRAIL (an adenoviral vector in which expression of GFP and TRAIL is driven by a human telomerase reverse transcriptase promoter, hTERT) on malignant meningiomas and gliomas. BACKGROUND:Gliomas and meningiomas are the two most common ty...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-11-35
更新日期:2011-10-28 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:CD44 has recently been reported as a cancer stem cell marker in ovarian cancer. However, the clinicopathological and prognostic value of this marker in ovarian cancer remains controversial; Here, we aimed to investigate the correlation between CD44 expression and the clinicopathological features or survival ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-016-0376-4
更新日期:2017-01-05 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:ErbB3-binding protein 1 (Ebp1) is a member of the PA2G4 family of proliferation-regulated proteins that is expressed in multiple malignant and non-malignant cells. ErbB3 and other members of the EGFR family have been implicated in cancer progression, it however remains unknown whether Ebp1 participate in pro...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-8-18
更新日期:2008-11-24 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::[This corrects the article DOI: 10.1186/s12935-019-0742-0.]. ...
journal_title:Cancer cell international
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12935-019-0797-y
更新日期:2019-04-11 00:00:00
abstract:Background:Emergence of resistance to molecular targeted therapy constitutes a limitation to clinical benefits in cancer treatment. Cross-resistance commonly happens with chemotherapeutic agents but might not with targeted agents. Methods:In the current study, TP53 wild-type cell lines with druggable MAPK pathway muta...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0768-3
更新日期:2019-03-07 00:00:00
abstract:Background:LncRNAs are key regulators in cancer. The current study explored the role of lncRNA LINC00261 (LINC00261) in lung cancer (LC). Methods:Expression of LINC00261 in LC tissues and cells was determined by quantitative real-time polymerase chain reaction (qRT-PCR). Pearson's Chi square test and Kaplan-Meier anal...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01332-6
更新日期:2020-06-26 00:00:00
abstract:BACKGROUND:The present study mainly aimed to investigate the direct effects of Endostar (ES) on the proliferation and radiosensitivity of human lung squamous cancer cell line H-520. RESULTS:ES significantly inhibited H-520 cell proliferation in a time- and dose-dependent manner. According to the colony-forming assays,...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-10-17
更新日期:2010-05-24 00:00:00
abstract:Background:Transgelin, an actin-binding protein, is associated with cytoskeleton remodeling. Findings from our previous studies demonstrated that transgelin was up-regulated in node-positive colorectal cancer (CRC) versus node-negative disease. Over-expression of TAGLN affected the expression of 256 downstream transcri...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01461-y
更新日期:2020-08-03 00:00:00
abstract:BACKGROUND:Alterations in the processing of the genetic information in carcinogenesis result from stable genetic mutations or epigenetic modifications. It is becoming clear that nucleosomal histones are central to proper gene expression and that aberrant DNA methylation of genes and histone methylation plays important ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-8-15
更新日期:2008-11-03 00:00:00
abstract:Background:In recent years, the B cell receptor (BCR) signaling pathway has become a "hot point" because it plays a critical role in B-cell proliferation and function. Bruton's tyrosine kinase (BTK) is overexpressed in many subtypes of B-cell lymphoma as a downstream kinase in the BCR signaling pathway. Ibrutinib, the ...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-020-01518-y
更新日期:2020-09-29 00:00:00
abstract::miRNAs, a major class of small noncoding RNAs approximately 18-25 nucleotides in length, function by repressing the expression of target genes through binding to complementary sequences in the 3'-UTRs of target genes. Emerging evidence has highlighted their important roles in numerous diseases, including human cancers...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-019-0984-x
更新日期:2019-10-07 00:00:00
abstract:Background:Melanoma as a type of skin cancer, is associated with a high mortality rate. Therefore, early diagnosis and efficient surgical treatment of this disease is very important. Photodynamic therapy (PDT) involves the activation of a photosensitizer by light at specific wavelength that interacts with oxygen and cr...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01616-x
更新日期:2020-10-29 00:00:00
abstract:Background:Endometrial cancer (EC) is the fourth most common malignancy of the female genital tract worldwide. MicroRNAs are important gene regulators with critical roles in diverse biological processes, including tumorigenesis. Several study's show that miR-139-5p is involved in the tumorigenesis and metastasis of var...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-018-0545-8
更新日期:2018-04-02 00:00:00