Abstract:
BACKGROUND:The PI3K family participates in multiple signaling pathways to regulate cellular functions. PI3K/Akt signaling pathway plays an important role in tumorigenesis and development. O-GlcNAcylation, a posttranslational modification, is thought to modulate a wide range of biological processes, such as transcription, cell growth, signal transduction, and cell motility. O-GlcNAcylation is catalyzed by the nucleocytoplasmic enzymes, OGT and OGA, which adds or removes O-GlcNAc moieties, respectively. Abnormal O-GlcNAcylation has been implicated in a variety of human diseases. However, the role of O-GlcNAcylation in tumorigenesis and progression of cancer is still under-investigated. Understanding the O-GlcNAc-associated molecular mechanism might be significant for diagnosis and therapy of cancer. METHODS:Human thyroid anaplastic cancer 8305C cells were used to evaluate the role of O-GlcNAcylation in tumorigenesis and progression of cancer. The global O-GlcNAc level of intracellular proteins was up-regulated by OGA inhibitor Thiamet-G treatment or OGT over-expression. Cell proliferation was assessed by MTT assay. Invasion in vitro was determined by Transwell assay, and phosphorylation of Akt1 at Ser473 was assessed by Western blot for activity of Akt1. PI3K-specific inhibitor LY294002 and RNA interference of Akt1 were used to investigate the impact of PI3K/Akt signaling on the regulation of O-GlcNAcylation during tumor progression. RESULTS:Cell models with remarkably up-regulated O-GlcNAcylation were constructed, and then cell proliferation and invasion were determined. The results indicated that the proliferation was not affected by OGA inhibition or OGT overexpression, while the invasion of 8305C cells with OGA inhibition or OGT overexpression was obviously increased. Akt1 activity was stimulated by elevated O-GlcNAcylation by mediating phosphorylation at Ser473. The enhanced invasion of thyroid cancer cells by Thiamet-G treatment or OGT overexpression was significantly depressed by PI3K inhibitor LY294002. Moreover, silence of Akt1 remarkably attenuated the increase of cell invasion induced by Thiamet-G treatment, but the invasion was still higher compared to Akt1-silenced only cells. In other words, Thiamet-G restored the invasion of Akt1-silenced thyroid cancer cells, but it was still lower relative to Thiamet-G-treated only cells. CONCLUSION:Taken together, our findings suggested that O-GlcNAcylation enhanced the invasion of thyroid anaplastic cancer cells partially by PI3K/Akt signaling, which might be a potential target for the diagnosis and treatment of thyroid anaplastic cancer.
journal_name
Onco Targets Therjournal_title
OncoTargets and therapyauthors
Zhang P,Wang C,Ma T,You Sdoi
10.2147/OTT.S82845subject
Has Abstractpub_date
2015-11-09 00:00:00pages
3305-13issn
1178-6930pii
ott-8-3305journal_volume
8pub_type
杂志文章abstract::Hormone-receptor-positive breast cancer is the most common subtype of breast cancer among patients with both early-stage and metastatic disease. Recent advances in the understanding of its pathophysiology have led to the discovery and utilization of targeted inhibitors to cyclin-dependent kinases 4 and 6 (CDK4/6). The...
journal_title:OncoTargets and therapy
pub_type: 杂志文章,评审
doi:10.2147/OTT.S149245
更新日期:2018-08-29 00:00:00
abstract:Background:Breast cancer (BC) has been the commonest malignant tumor with a low survival rate among woman. Long non-coding RNA hypoxia-inducible factor-1 alpha antisense RNA-2 (HIF1A-AS2) was correlated with various cancers. Purpose:The study aimed to investigate the roles and related underlying molecular mechanisms o...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S192377
更新日期:2019-01-24 00:00:00
abstract:BACKGROUND:The purpose of this study was to determine the efficacy of sorafenib in preventing and treating tumor recurrence after liver transplantation in patients with primary hepatic carcinoma exceeding the Milan criteria. METHODS:Thirty patients with primary hepatic carcinoma exceeding the Milan criteria underwent ...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S31387
更新日期:2012-01-01 00:00:00
abstract::Advances in therapies have led to the approval of six therapeutic agents since 2004, each demonstrating overall survival benefit in randomized studies, and these have significantly improved the outlook for men facing metastatic castration-resistant prostate cancer (CRPC). More recently, efforts have been directed at t...
journal_title:OncoTargets and therapy
pub_type: 杂志文章,评审
doi:10.2147/OTT.S147168
更新日期:2018-04-12 00:00:00
abstract:BACKGROUND:Laminin gamma2 (Ln-γ2) chain, a distinctive subunit of heterotrimeric laminin-332, is frequently upregulated in carcinomas and is of great importance in cell migration and invasion. Despite this, the status of circulating Ln-γ2 in lung cancer patients is still uncertain. PATIENTS AND METHODS:In this retrosp...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S105732
更新日期:2016-07-07 00:00:00
abstract:BACKGROUND/AIM:To elucidate the mechanism responsible for developing acute kidney injury in patients with diabetes mellitus, we also evaluated the issue of whether advanced glycation endproducts (AGEs) influence the expressions of multi antimicrobial extrusion protein (MATE1/SLC47A1) in tubular cells. MATERIALS AND ME...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S86743
更新日期:2015-07-10 00:00:00
abstract:Background:Sex-determining region Y-box protein 5 (SOX5) has been demonstrated to be implicated in oncogenic function in various types of cancers. However, the role of SOX5 in gastric cancer (GC) remains poorly elucidated. Herein, we investigated the role and the underlying mechanism of SOX5 in GC progression. Methods...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S197087
更新日期:2019-04-03 00:00:00
abstract:Purpose:The TRMT12 is a novel oncogene involved in breast cancer. However, the association between TRMT12 and head and neck squamous cell carcinoma (HNSCC) remains unclear. Materials and methods:The levels of TRMT12 mRNA in HNSCC and normal tissues were analyzed using data from the Cancer Genome Atlas-HNSC. The expres...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S212200
更新日期:2019-09-05 00:00:00
abstract:Purpose:Anaplastic thyroid cancer (ATC) is a kind of rare thyroid cancer with very poor prognosis. Doxorubicin has been approved in ATC treatment as a single agent, but monotherapy still shows no improvement of the total survival in advanced ATC. Lenvatinib was investigated with encouraging results in treating patients...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S278349
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abstract:Background:New evidence suggests that histidine triad nucleotide-binding protein 1 (Hint1) exerts a tumor suppressor effect in various human tumors, such as colorectal cancer and gastric cancer. However, it has not been reported whether Hint1 is involved in the occurrence and development of osteosarcoma (OS). Material...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S242344
更新日期:2020-08-19 00:00:00
abstract:Background:Gastric tumor (GT) is associated with high morbidity and mortality, with surgery among the most effective treatment methods. Accurate interoperative determination of the tumor margin is crucial. Methods:In this study, using internal extractive electrospray ionization-MS, mass spectral data of GT and gastric...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S221589
更新日期:2019-10-17 00:00:00
abstract:OBJECTIVE:To assess the need for pulmonary surgery in the treatment of refractory gestational trophoblastic neoplasia with lung metastasis after normalization of serum beta human chorionic gonadotropin (β-hCG) level with salvage chemotherapy. MATERIALS AND METHODS:A review of medical records of patients with refractor...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S56361
更新日期:2014-01-29 00:00:00
abstract:BACKGROUND:Everolimus, an inhibitor of the mammalian target of rapamycin, shows promising antitumor activity when combined with trastuzumab and chemotherapy for human epidermal growth factor receptor-2 (HER2)-positive breast cancer or when combined with endocrine agents for hormone receptor (HR)-positive tumors. Howeve...
journal_title:OncoTargets and therapy
pub_type:
doi:10.2147/OTT.S104398
更新日期:2016-07-01 00:00:00
abstract:Purpose:Tumor-associated macrophages (TAMs) originate from monocytes and differentiate into mature macrophages. The interaction between cancer cells and TAMs promotes tumor growth and suppresses immunosurveillance. However, this phenomenon has seldom been observed in ampullary cancer. Patients and Methods:TAMs in ampu...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S246714
更新日期:2020-08-03 00:00:00
abstract:Background:The immune environment of lung cancer is complex, and the critical immune factors that promote lung cancer progression need to be explored. Granulocytic myeloid-derived suppressor cells (G-MDSCs) are regarded as immune suppressing cells. However, they also promote tumor progression through other ways, which ...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S256378
更新日期:2020-09-30 00:00:00
abstract:BACKGROUND:CD155, an immunoglobulin-like adhesion molecule, plays an important role in carcinoma such as cells migration, proliferation, metastasis, and tumor immune. The upregulation of CD155 has been found in several human malignancies, but its expression in cholangiocarcinoma (CCA) still remains unclear. The aim of ...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S141476
更新日期:2017-07-31 00:00:00
abstract:BACKGROUND:We investigated the functional roles of microRNA-125a-5p in regulating human prostate carcinoma. METHODS:Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was conducted to evaluate the gene expression levels of miR-125a-5p in eight prostate cancer cell lines and nine biopsy specimens fr...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S92314
更新日期:2015-12-17 00:00:00
abstract:BACKGROUND:Due to the hypervascular nature of glioblastoma (GBM), antiangiogenic treatments, such as vatalanib, have been added as an adjuvant to control angiogenesis and tumor growth. However, evidence of progressive tumor growth and resistance to antiangiogenic treatment has been observed. To counter the unwanted eff...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S93790
更新日期:2016-03-09 00:00:00
abstract:Background:The aberrant expression of microRNA-139-3p (miR-139-3p) has been recently involved in the development of multiple tumor types, but its function in ovarian cancer remains not well investigated. In this study, we mainly investigated the function of miR-139-3p in the progression of ovarian cancer. Methods:The ...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S210739
更新日期:2019-11-05 00:00:00
abstract:Purpose:Aberrant activation of the Janus-associated kinase (JAK)/signal transducer and activator of transcription (STAT) pathway is associated with increased malignant cell proliferation and survival. This Phase Ib study evaluated ruxolitinib, a potent JAK1/2 inhibitor, in combination with gemcitabine with or without n...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S157331
更新日期:2018-04-30 00:00:00
abstract:Purpose:Pathological complete response (pCR) to neoadjuvant chemotherapy (NACT) is associated with favourable outcomes of patients with triple-negative breast cancer (TNBC). However, a proportion of TNBC patients with the residual disease do not relapse and achieve long-term survival. The aim of this study was to ident...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S256818
更新日期:2020-07-03 00:00:00
abstract:Purpose:Hepatocellular carcinoma (HCC) has a high incidence in China and exploring effective ways for early diagnosis is an important method to improve the prognosis of patients with HCC. Additional studies reported that. Some kinds of microRNA (miRNA) in plasma will change accordingly during HCC progress, and this cha...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S232453
更新日期:2020-03-09 00:00:00
abstract:Purpose:The aim was to investigate resveratrol effects on A549 cells proliferation. Methods:A total of 104 lung adenocarcinoma tissues and nontumor tissues were collected. BEAS-2B cells were cultured in RPMI 1640 medium (group A). A549 cells were treated with RPMI 1640 medium containing different resveratrol concentra...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S157613
更新日期:2018-05-22 00:00:00
abstract:Background:Melatonin (MLT), a kind of neuroendocrine active substance, has been reported to function in the treatment of tumors. However, there remain controversies about the curative effect of MLT in tumors in clinical studies. This study investigates the efficacy of MLT on tumor therapeutic strategies by meta-analysi...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S174100
更新日期:2018-11-08 00:00:00
abstract:Purpose:Circular RNAs (circRNAs) have been found to regulate several human tumors. The present study was to explore the mechanism of hsa_circ_0087862 in regulating non-small cell lung cancer (NSCLC). Methods:Totally 102 NSCLC cases were enrolled. NCI-H1359 and A549 cells were transfected. Cells viability, apoptosis, m...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S243533
更新日期:2020-04-03 00:00:00
abstract:Purpose:Cervical squamous cell carcinoma (CSCC) seriously affects women's health worldwide, and it is of great significance to illuminate the specific role of circRNAs in CSCC. Materials and Methods:Three mRNA datasets, two miRNA datasets and one circRNA dataset of CSCC, downloaded from GEO, were utilized in this stud...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S254323
更新日期:2020-08-25 00:00:00
abstract:BACKGROUND:MicroRNA (miR)-126, acting as a tumor suppressor, has been reported to inhibit the invasion of gastric cancer cells in part by targeting v-crk sarcoma virus CT10 oncogene homologue (CRK). The aim of this study was to investigate the clinical significance of miR-126/CRK axis in gastric cancer. METHODS:miR-12...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S87778
更新日期:2016-10-11 00:00:00
abstract:OBJECTIVE:SASH1 is a member of the SH3/SAM adapter molecules family and has been identified as a new tumor suppressor and critical protein in signal transduction. An ectopic expression of SASH1 is associated with decreased cell viability of breast cancer. The aim of this study was to explore the association between SAS...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S119244
更新日期:2017-01-10 00:00:00
abstract:Background:A growing body of evidence supports the involvement of long noncoding RNA 00152 (LINC00152) in the progression and metastasis of multiple cancers. However, the exact roles of LINC00152 in the progression of human retinoblastoma (RB) remain unknown. We explored the expression and biological function of human ...
journal_title:OncoTargets and therapy
pub_type: 杂志文章
doi:10.2147/OTT.S160428
更新日期:2018-06-06 00:00:00
abstract::To date, 10 years after the first demonstration of circulating tumor cells (CTCs), prognostic significance in metastatic breast cancer using the US Food and Drug Administration-cleared system CellSearch(®), the potential utility of CTCs in early clinical development of drugs, their role as a surrogate marker of respon...
journal_title:OncoTargets and therapy
pub_type: 杂志文章,评审
doi:10.2147/OTT.S46200
更新日期:2014-04-17 00:00:00