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Growth related oncogene alpha

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https://www.readbyqxmd.com/read/30065942/mutational-analysis-of-oncogenic-akt1-gene-associated-with-breast-cancer-risk-in-the-high-altitude-ecuadorian-mestizo-population
#1
Andrés López-Cortés, Paola E Leone, Byron Freire-Paspuel, Nathaly Arcos-Villacís, Patricia Guevara-Ramírez, Felipe Rosales, César Paz-Y-Miño
Breast cancer is the leading cause of cancer-related death among women worldwide. AKT1 encodes the kinase B alpha protein. The rs121434592, rs12881616, rs11555432, rs11555431, rs2494732, and rs3803304 single nucleotide polymorphisms have been identified in the AKT1 kinase gene. Activated AKT1 phosphorylates downstream substrates regulating cell growth, metabolism, apoptosis, angiogenesis, and drug responses. It is essential to know how breast cancer risk is associated with histopathological and immunohistochemical characteristics and genotype polymorphisms in a high altitude Ecuadorian mestizo population...
2018: BioMed Research International
https://www.readbyqxmd.com/read/30042415/nuclear-receptor-err%C3%AE-and-transcription-factor-erg-form-a-reciprocal-loop-in-the-regulation-of-tmprss2-erg-fusion-gene-in-prostate-cancer
#2
Zhenyu Xu, Yuliang Wang, Zhan Gang Xiao, Chang Zou, Xian Zhang, Zhu Wang, Dinglan Wu, Shan Yu, Franky Leung Chan
The TMPRSS2:ERG (T:E) fusion gene is generally believed to be mainly regulated by the activated androgen receptor (AR) signaling in androgen-dependent prostate cancer. However, its persistent expression in castration-resistant and neuroendocrine prostate cancers implies that other transcription factors might also regulate its expression. Here, we showed that up-regulation of nuclear receptor estrogen-related receptor alpha (ERRα) was closely associated with the oncogenic transcription factor ERG expression in prostate cancer, and their increased coexpression patterns were closely associated with high Gleason scores and metastasis in patients...
November 2018: Oncogene
https://www.readbyqxmd.com/read/29914442/golgi-phosphoprotein-3-golph3-promotes-hepatocellular-carcinoma-progression-by-activating-mtor-signaling-pathway
#3
Hongying Liu, Xieqi Wang, Bing Feng, Lipeng Tang, Weiping Li, Xirun Zheng, Ying Liu, Yan Peng, Guangjuan Zheng, Qinglian He
BACKGROUND: Hepatocellular carcinoma (HCC) is the sixth most common cancer and the second leading cause of cancer-related deaths worldwide. Despite new technologies in diagnosis and treatment, the incidence and mortality of HCC continue rising. And its pathogenesis is still unclear. As a highly conserved protein of the Golgi apparatus, Golgi phosphoprotein 3 (GOLPH3) has been shown to be involved in tumorigenesis of HCC. This study aimed to explore the exact oncogenic mechanism of GOLPH3 and provide a novel diagnose biomarker and therapeutic strategy for patients with HCC...
June 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29798252/-the-relationship-between-%C3%A2-%C3%A2-f-fdg-uptake-and-oncogene-in-human-laryngeal-squamous-cell-carcinoma-transplantation-tumor-animal-model
#4
O Xu, Y B Wang, C G Shan, L Zhang, X M Li
Objective: The aim of this study is to explore the relationship between [F18] fluoro 2 deoxy d glucose ¹⁸F-FDG) uptake and oncogene expression in human laryngeal squamous cell carcinoma (LSCC) transplantation tumor. Method: Ten nude mice were randomly divided into two groups, 5 mice of each group. One group was injected subcutaneously with Hep-2 cells to establish xenograft model, and the other one was injected with HIF-RNAi-Hep-2 cells. All animals were conducted with positron emission tomography computed tomography PET scan...
July 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29716631/nherf1-and-tumor-microenvironment-a-new-scene-in-invasive-breast-carcinoma
#5
Concetta Saponaro, Alessandro Vagheggini, Emanuela Scarpi, Matteo Centonze, Ivana Catacchio, Ondina Popescu, Maria Irene Pastena, Francesco Giotta, Nicola Silvestris, Anita Mangia
BACKGROUND: Tumor microenvironment (TME) includes many factors such as tumor associated inflammatory cells, vessels, and lymphocytes, as well as different signaling molecules and extracellular matrix components. These aspects can be de-regulated and consequently lead to a worsening of cancer progression. In recent years an association between the scaffolding protein Na+ /H+ exchanger regulatory factor 1 (NHERF1) and tumor microenvironment changes in breast cancer (BC) has been reported...
May 2, 2018: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29678492/hmga1a-induces-alternative-splicing-of-estrogen-receptor-alpha-in-mcf-7-human-breast-cancer-cells
#6
Kenji Ohe, Shinsuke Miyajima, Ichiro Abe, Tomoko Tanaka, Yuriko Hamaguchi, Yoshihiro Harada, Yuta Horita, Yuki Beppu, Fumiaki Ito, Takafumi Yamasaki, Hiroki Terai, Masayoshi Mori, Yusuke Murata, Makito Tanabe, Kenji Ashida, Kunihisa Kobayashi, Munechika Enjoji, Toshihiko Yanase, Nobuhiro Harada, Toshiaki Utsumi, Akila Mayeda
The high-mobility group A protein 1a (HMGA1a) protein is known as an oncogene whose expression level in cancer tissue correlates with the malignant potential, and known as a component of senescence-related structures connecting it to tumor suppressor networks in fibroblasts. HMGA1 protein binds to DNA, but recent studies have shown it exerts novel functions through RNA-binding. Our previous studies have shown that sequence-specific RNA-binding of HMGA1a induces exon-skipping of Presenilin-2 exon 5 in sporadic Alzheimer disease...
September 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29554616/inflammatory-markers-as-predictors-of-depression-and-anxiety-in-adolescents-statistical-model-building-with-component-wise-gradient-boosting
#7
Consuelo Walss-Bass, Robert Suchting, Rene L Olvera, Douglas E Williamson
BACKGROUND: Immune system abnormalities have been repeatedly observed in several psychiatric disorders, including severe depression and anxiety. However, whether specific immune mediators play an early role in the etiopathogenesis of these disorders remains unknown. METHODS: In a longitudinal design, component-wise gradient boosting was used to build models of depression, assessed by the Mood-Feelings Questionnaire-Child (MFQC), and anxiety, assessed by the Screen for Child Anxiety Related Emotional Disorders (SCARED) in 254 adolescents from a large set of candidate predictors, including sex, race, 39 inflammatory proteins, and the interactions between those proteins and time...
July 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29535842/selenium-targets-resistance-biomarkers-enhancing-efficacy-while-reducing-toxicity-of-anti-cancer-drugs-preclinical-and-clinical-development
#8
REVIEW
Yousef Zakharia, Arup Bhattacharya, Youcef M Rustum
Selenium (Se)-containing molecules exert antioxidant properties and modulate targets associated with tumor growth, metastasis, angiogenesis, and drug resistance. Prevention clinical trials with low-dose supplementation of different types of Se molecules have yielded conflicting results. Utilizing several xenograft models, we earlier reported that the enhanced antitumor activity of various chemotherapeutic agents by selenomethione and Se-methylselenocysteine in several human tumor xenografts is highly dose- and schedule-dependent...
February 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29476880/downregulation-of-estrogen-related-receptor-alpha-inhibits-human-cutaneous-squamous-cell-carcinoma-cell-proliferation-and-migration-by-regulating-emt-via-fibronectin-and-stat3-signaling-pathways
#9
Haifei Chen, Jiewen Pan, Liudi Zhang, Lu Chen, Huijie Qi, Mingkang Zhong, Xiaojin Shi, Juan Du, Qunyi Li
Estrogen-related receptor alpha (ERRα), one of orphan nuclear receptors, has been recently revealed as an oncogenic regulator in a variety of cancers. However, the linking gain of ERRα expression and cancer progression in cutaneous squamous cell carcinoma (cSCC) is largely unknown. Here, we showed that the mRNA and protein expression levels of ERRα were markedly higher in A431 cells compared with human keratinocyte cell line HaCaT, and targeted inhibition of ERRα by shRNA or its inverse agonist XCT790 significantly suppressed A431 cells proliferation and migration, while overexpression of ERRα promoted cell proliferation and migration...
April 15, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29323058/assessment-of-topoisomerase-ii-alpha-gene-status-by-dual-color-chromogenic-in-situ-hybridization-in-a-set-of-iraqi-patients-with-invasive-breast-carcinoma
#10
Rasha Abd Alraouf Neama, Manal A Habib, Sahira A Ali, Ali H Al-Khafaji, Mohammed F Alqanbar
BACKGROUND: The human epidermal growth factor receptor 2(HER2) proto-oncogene is overexpressed or amplified in approximately 15%-25% of invasive breast cancers. Approximately 35% of HER2-amplified breast cancers have coamplification of the topoisomerase II-alpha (TOP2A) gene encoding an enzyme that is a major target of anthracyclines. Hence, the determination of genetic alteration (amplification or deletion) of both genes is considered as an important predictive factor that determines the response of breast cancer patients to treatment...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29298131/a-systematic-review-of-p53-regulation-of-oxidative-stress-in-skeletal-muscle
#11
REVIEW
Kaitlyn Beyfuss, David A Hood
BACKGROUND: p53 is a tumor suppressor protein involved in regulating a wide array of signaling pathways. The role of p53 in the cell is determined by the type of imposed oxidative stress, its intensity and duration. The last decade of research has unravelled a dual nature in the function of p53 in mediating the oxidative stress burden. However, this is dependent on the specific properties of the applied stress and thus requires further analysis. METHODS: A systematic review was performed following an electronic search of Pubmed, Google Scholar, and ScienceDirect databases...
December 2018: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/29221753/pura-the-gene-encoding-pur-alpha-member-of-an-ancient-nucleic-acid-binding-protein-family-with-mammalian-neurological-functions
#12
REVIEW
Dianne C Daniel, Edward M Johnson
The PURA gene encodes Pur-alpha, a 322 amino acid protein with repeated nucleic acid binding domains that are highly conserved from bacteria through humans. PUR genes with a single copy of this domain have been detected so far in spirochetes and bacteroides. Lower eukaryotes possess one copy of the PUR gene, whereas chordates possess 1 to 4 PUR family members. Human PUR genes encode Pur-alpha (Pura), Pur-beta (Purb) and two forms of Pur-gamma (Purg). Pur-alpha is a protein that binds specific DNA and RNA sequence elements...
February 15, 2018: Gene
https://www.readbyqxmd.com/read/29212169/ccctc-binding-factor-inhibits-breast-cancer-cell-proliferation-and-metastasis-via-inactivation-of-the-nuclear-factor-kappab-pathway
#13
Jie Wu, Peng-Chang Li, Jun-Yi Pang, Guo-You Liu, Xue-Min Xie, Jia-Yao Li, Yi-Cong Yin, Jian-Hua Han, Xiu-Zhi Guo, Ling Qiu
CCCTC-binding factor (CTCF) is an important epigenetic regulator implicated in multiple cellular processes, including growth, proliferation, differentiation, and apoptosis. Although CTCF deletion or mutation has been associated with human breast cancer, the role of CTCF in breast cancer is questionable. We investigated the biological functions of CTCF in breast cancer and the underlying mechanism. The results showed that CTCF expression in human breast cancer cells and tissues was significantly lower than that in normal breast cells and tissues...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28958480/protein-profiling-and-angiogenic-effect-of-hypoxia-cultured-human-umbilical-cord-blood-derived-mesenchymal-stem-cells-in-hindlimb-ischemia
#14
Kyu-Hyun Han, Ae-Kyeong Kim, Min-Hee Kim, Do-Hyung Kim, Ha-Nl Go, Donglim Kang, Jong Wook Chang, Soon Won Choi, Kyung-Sun Kang, Dong-Ik Kim
The aim of the present study was to investigate protein profiles of human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) cultured in normoxic (21% O2 ) and hypoxic (1% O2 ) conditions, and evaluate oxygenation effects on angiogenesis in an ischemic hindlimb mouse model using a modified ischemic scoring system. Hypoxic conditions did not change the expression of phenotypic markers and increased adipogenesis and chondrogenesis. Epidermal growth factor (EGF), transforming growth factor alpha (TGF-α), TGF-β RII, and vascular endothelial growth factor (VEGF) were upregulated in the conditioned medium of hypoxic hUCB-MSCs, which are commonly related to angiogenesis and proliferation of biological processes by Gene Ontology...
December 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28945225/oncogenic-ras-induced-ck1%C3%AE-drives-nuclear-foxo-proteolysis
#15
F Zhang, D M Virshup, J K Cheong
Evasion of forkhead box O (FOXO) family of longevity-related transcription factors-mediated growth suppression is necessary to promote cancer development. Since somatic alterations or mutations and transcriptional dysregulation of the FOXO genes are infrequent in human cancers, it remains unclear how these tumour suppressors are eliminated from cancer cells. The protein stability of FOXO3A is regulated by Casein Kinase 1 alpha (CK1α) in an oncogenic RAS-specific manner, but whether this mode of regulation extends to related FOXO family members is unknown...
January 18, 2018: Oncogene
https://www.readbyqxmd.com/read/28423499/imidazoline-i2-receptor-inhibitor-idazoxan-regulates-the-progression-of-hepatic-fibrosis-via-akt-nrf2-smad2-3-signaling-pathway
#16
Li Xuanfei, Chen Hao, Yi Zhujun, Liu Yanming, Gong Jianping
Liver fibrosis is a global health problem and its relationship with imidazoline I2 receptor has not been reported. This study aimed to investigate the effects and underlying mechanisms of imidazoline I2 receptor (I2R) inhibitor idazoxan (IDA) on carbon tetrachloride (CCl4)-induced liver fibrosis. In vivo liver fibrosis in mice was induced by intraperitoneally injections of CCl4 for eight weeks, and in vitro studies were performed on activated LX2 cells treated with transforming growth factor-β (TGF-β). Our results showed that IDA significantly improved liver inflammation, ameliorated hepatic stellate cells activation and reduced collagen accumulation by suppressing the pro-fibrogenic signaling of TGF-β/Smad...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422956/chronic-activation-of-ppar%C3%AE-with-fenofibrate-reduces-autophagic-proteins-in-the-liver-of-mice-independent-of-fgf21
#17
Eunjung Jo, Songpei Li, Qingning Liang, Xinmei Zhang, Hao Wang, Terence P Herbert, Trisha A Jenkins, Aimin Xu, Ji-Ming Ye
Autophagy is a catabolic mechanism to degrade cellular components to maintain cellular energy levels during starvation, a condition where PPARα may be activated. Here we report a reduced autophagic capacity in the liver following chronic activation of PPARα with fenofibrate (FB) in mice. Chronic administration of the PPARα agonist FB substantially reduced the levels of multiple autophagy proteins in the liver (Atg3, Agt4B, Atg5, Atg7 and beclin 1) which were associated with a decrease in the light chain LC3II/LC3I ratio and the accumulation of p62...
2017: PloS One
https://www.readbyqxmd.com/read/28358890/a-multifunctional-bioactive-material-that-stimulates-osteogenesis-and-promotes-the-vascularization-bone-marrow-stem-cells-and-their-resistance-to-bacterial-infection
#18
Chuang Ma, Qin Wei, Bo Cao, Xinchun Cheng, Juling Tian, Hongwei Pu, Aihemaitijiang Yusufu, Li Cao
The main limitation of tissue engineering lies in the inability to stimulate osteogenesis, angiogenesis of stem cells and broad-spectrum antimicrobial activity. However, the development of multifunctional bioactive materials with these capabilities remains a great challenge. In this study, we prepared mesoporous silica nanoparticles encapsulated with silver nanocrystals (AG-MSN) with uniform sphere size and mesopores. Platelet-derived growth factor BB (PDGF-BB) was effectively loaded in the AG-MSN mesopores (P-AG-MSN)...
2017: PloS One
https://www.readbyqxmd.com/read/28327358/a-cell-autonomous-positive-signaling-circuit-associated-with-the-pdgf-no-id4-regulatory-axis-in-glioblastoma-cells
#19
Kiyoung Eun, Hye-Min Jeon, Sung-Ok Kim, Sang-Hun Choi, Seon Yong Lee, Xiong Jin, Sung-Chan Kim, Hyunggee Kim
Most cancer-related signaling pathways sustain their active or inactive status via genetic mutations or various regulatory mechanisms. Previously, we demonstrated that platelet-derived growth factor (PDGF) activates Notch signaling through nitric oxide (NO)-signaling-driven activation of inhibitor of differentiation 4 (ID4) in glioblastoma (GBM) stem cells (GSCs) and endothelial cells in the vascular niche of GBM, leading to maintenance of GSC traits and GBM progression. Here, we determined that the PDGF-NO-ID4-signaling axis is constantly activated through a positive regulatory circuit...
April 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28247848/relation-of-cytokine-profile-to-clinical-and-hemodynamic-features-in-young-patients-with-congenital-heart-disease-and-pulmonary-hypertension
#20
Leína Zorzanelli, Nair Maeda, Mariana Clavé, Ana Thomaz, Filomena Galas, Marlene Rabinovitch, Antonio Lopes
In congenital heart disease, severity of pulmonary hypertension and operability is defined by noninvasive parameters (clinical history, physical examination, and echocardiography) and sometimes, cardiac catheterization. We investigated how circulating levels of inflammatory mediators correlate with such parameters in a young pediatric population (age, 2.0 months to 3.1 years) and the effects of preoperative pulmonary vasodilator therapy with sildenafil. Cytokines were analyzed in serum using chemiluminescence signals...
January 1, 2017: American Journal of Cardiology
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