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Molecular Cancer

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https://www.readbyqxmd.com/read/28446200/human-germ-stem-cell-specific-gene-tex19-influences-cancer-cell-proliferation-and-cancer-prognosis
#1
Vicente Planells-Palop, Ali Hazazi, Julia Feichtinger, Jana Jezkova, Gerhard Thallinger, Naif O Alsiwiehri, Mikhlid Almutairi, Lee Parry, Jane A Wakeman, Ramsay J McFarlane
BACKGROUND: Cancer/testis (CT) genes have expression normally restricted to the testis, but become activated during oncogenesis, so they have excellent potential as cancer-specific biomarkers. Evidence is starting to emerge to indicate that they also provide function(s) in the oncogenic programme. Human TEX19 is a recently identified CT gene, but a functional role for TEX19 in cancer has not yet been defined. METHODS: siRNA was used to deplete TEX19 levels in various cancer cell lines...
April 26, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28446188/phosphorylation-by-mtorc1-stablizes-skp2-and-regulates-its-oncogenic-function-in-gastric-cancer
#2
Qirong Geng, Jianjun Liu, Zhaohui Gong, Shangxiang Chen, Shuai Chen, Xiaoxing Li, Yue Lu, Xiaofeng Zhu, Hui-Kuan Lin, Dazhi Xu
BACKGROUND: Both mTOR and Skp2 play critical roles in gastric cancer (GC) tumorigenesis. However, potential mechanisms for the association between these two proteins remains unidentified. METHODS: The regulatory role for mTORC1 in Skp2 stability was tested using ubiquitination assay. The functions of p-Skp2 (phosphorylation of Skp2) were studied in vitro and in vivo. Expression of p-Skp2 and p-mTOR (phosphorylation of mTOR) were shown in GC lines and in 169 human primary GC tissues...
April 26, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28441948/over-expressed-long-noncoding-rna-hoxa11-as-promotes-cell-cycle-progression-and-metastasis-in-gastric-cancer
#3
Zhili Liu, Zhenyao Chen, Ruihua Fan, Bin Jiang, Xin Chen, Qinnan Chen, Fengqi Nie, Kaihua Lu, Ming Sun
BACKGROUND: Long noncoding RNAs (lncRNAs) have emerged as critical regulators in a variety of human cancers, including gastric cancer (GC). However, the function and mechanisms responsible for these molecules in GC are not fully understood. In our previous study, we found that GC associated lncRNA HOXA11-AS is significantly upregulated in GC tissues. Over-expressed HOXA11-AS promotes GC cells proliferation and invasion through scaffolding the chromatin modification factors PRC2, LSD1 and DNMT1...
April 26, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28431580/cripto-1-acts-as-a-functional-marker-of-cancer-stem-like-cells-and-predicts-prognosis-of-the-patients-in-esophageal-squamous-cell-carcinoma
#4
Qiang Liu, Xiang Cui, Xi Yu, Bai-Shi-Jiao Bian, Feng Qian, Xu-Gang Hu, Cheng-Dong Ji, Lang Yang, Yong Ren, Wei Cui, Xia Zhang, Peng Zhang, Ji Ming Wang, You-Hong Cui, Xiu-Wu Bian
BACKGROUND: Esophageal squamous cell carcinoma (ESCC) is highly malignant with highly invasive and metastatic capabilities and poor prognosis. It is believed that the ESCC cancer stem-like cells (ECSLCs) are critical for tumorigenicity, invasion and metastasis of ESCC. However, the properties of ECSLCs vary with different markers used in isolation, so that new and more effective markers of ECSLCs need to be identified. This study aimed to estimate the potentiality of Cripto-1 (CR-1) as an ECSLC surface marker and investigate the clinical significance of CR-1 expression in ESCC...
April 21, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28410618/liquid-biopsy-a-step-forward-towards-precision-medicine-in-urologic-malignancies
#5
REVIEW
Ashley Di Meo, Jenni Bartlett, Yufeng Cheng, Maria D Pasic, George M Yousef
There is a growing trend towards exploring the use of a minimally invasive "liquid biopsy" to identify biomarkers in a number of cancers, including urologic malignancies. Multiple aspects can be assessed in circulating cell-free DNA, including cell-free DNA levels, integrity, methylation and mutations. Other prospective liquid biopsy markers include circulating tumor cells, circulating RNAs (miRNA, lncRNAs and mRNAs), cell-free proteins, peptides and exosomes have also emerged as non-invasive cancer biomarkers...
April 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28407774/ros-signaling-under-metabolic-stress-cross-talk-between-ampk-and-akt-pathway
#6
REVIEW
Yang Zhao, Xingbin Hu, Yajing Liu, Shumin Dong, Zhaowei Wen, Wanming He, Shuyi Zhang, Qiong Huang, Min Shi
Cancer cells are frequently confronted with metabolic stress in tumor microenvironments due to their rapid growth and limited nutrient supply. Metabolic stress induces cell death through ROS-induced apoptosis. However, cancer cells can adapt to it by altering the metabolic pathways. AMPK and AKT are two primary effectors in response to metabolic stress: AMPK acts as an energy-sensing factor which rewires metabolism and maintains redox balance. AKT broadly promotes energy production in the nutrient abundance milieu, but the role of AKT under metabolic stress is in dispute...
April 13, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28403883/dc-signr-by-influencing-the-lncrna-hnrnpkp2-upregulates-the-expression-of-cxcr4-in-gastric-cancer-liver-metastasis
#7
Yu Zhang, Qianshi Zhang, Mengyang Zhang, Menglang Yuan, Zhaohui Wang, Jingbo Zhang, Xu Zhou, Yinan Zhang, Fang Lin, Heya Na, Shuangyi Ren, Yunfei Zuo
BACKGROUND: Profiling evidences of selectin demonstrate that they play an crucial role in cancer progression and metastasis. However, DC-SIGNR as a family member of selectin participates in gastric cancer liver metastasis remains unknown. METHODS: The serum level of DC-SIGNR was evaluated in gastric cancer patients by ELISA. Manipulation DC-SIGNR expression in BGC823 and SGC7901 cell lines was mediated by lentivirus. Investigation the biological effects of DC-SIGNR were verified by MTT, wounding and transwell in vitro and experiments on animals to confirm gastric cancer liver metastasis by IVIS...
April 13, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28399876/emerging-roles-of-lipid-metabolism-in-cancer-metastasis
#8
REVIEW
Xiangjian Luo, Can Cheng, Zheqiong Tan, Namei Li, Min Tang, Lifang Yang, Ya Cao
Cancer cells frequently display fundamentally altered cellular metabolism, which provides the biochemical foundation and directly contributes to tumorigenicity and malignancy. Rewiring of metabolic programmes, such as aerobic glycolysis and increased glutamine metabolism, are crucial for cancer cells to shed from a primary tumor, overcome the nutrient and energy deficit, and eventually survive and form metastases. However, the role of lipid metabolism that confers the aggressive properties of malignant cancers remains obscure...
April 11, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28399871/igf2bp3-functions-as-a-potential-oncogene-and-is-a-crucial-target-of-mir-34a-in-gastric-carcinogenesis
#9
Yuhang Zhou, Tingting Huang, Ho Lam Siu, Chi Chun Wong, Yujuan Dong, Feng Wu, Bin Zhang, William K K Wu, Alfred S L Cheng, Jun Yu, Ka Fai To, Wei Kang
BACKGROUND: Gastric cancer (GC) is one of the frequent causes of cancer-related death in eastern Asian population. IGF2BP2 lists in the top rank up-regulated genes in GC, but its functional role is unclear. METHOD: The expression of IGF2BP3 in GC cell lines and primary samples was examined by qRT-PCR and Western blot. The biological role of IGF2BP3 was revealed by a series of functional in vitro studies. Its regulation by microRNAs (miRNAs) was predicted by TargetScan and confirmed by luciferase assays and rescue experiments...
April 11, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28376832/serum-hotair-as-a-novel-diagnostic-biomarker-for-esophageal-squamous-cell-carcinoma
#10
Wenjian Wang, Xiaotian He, Zehua Zheng, Xiaofan Ma, Xueting Hu, Duoguang Wu, Minghui Wang
BACKGROUND: Early diagnosis of esophageal squamous cell carcinoma (ESCC) is an important issue to improve the prognosis. HOX transcript antisense RNA (HOTAIR), a long noncoding RNA (lncRNA) expressed from the HOXC locus, has been recently revealed as an oncogenic regulator in ESCC. This study aimed to investigate whether serum HOTAIR is involved in the diagnosis of ESCC. METHODS: In this study, we detected serum HOTAIR expression in 50 patients with ESCC (including 42 tumor resection and 8 without surgery) and 20 healthy volunteers to investigate the role of serum HOTAIR in ESCC using the quantitative real-time polymerase chain reaction (qRT-PCR) method...
April 4, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28372542/the-depletion-of-pinx1-involved-in-the-tumorigenesis-of-non-small-cell-lung-cancer-promotes-cell-proliferation-via-p15-cyclin-d1-pathway
#11
Xiao-Peng Tian, Xiao-Han Jin, Mei Li, Wei-Juan Huang, Dan Xie, Jia-Xing Zhang
BACKGROUND: The telomerase/telomere interacting protein PinX1 has been suggested as a tumor suppressor. However, the clinical and biological significance of PinX1 in human non-small cell lung cancer (NSCLC) is unclear. METHODS: PinX1 gene/expression pattern and its association with NSCLC patient survival were analyzed in cBioportal Web resource and two cohorts of NSCLC samples. A series of in vivo and in vitro assays were performed to elucidate the function of PinX1 on NSCLC cells proliferation and underlying mechanisms...
April 4, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28372546/cellular-organization-and-molecular-differentiation-model-of-breast-cancer-associated-fibroblasts
#12
Susann Busch, Daniel Andersson, Eva Bom, Claire Walsh, Anders Ståhlberg, Göran Landberg
BACKGROUND: The role of cancer-associated fibroblasts (CAFs) during tumour progression is obscured by the inherently complex, heterotypic nature of fibroblast cells and behaviours in various subtypes of malignancies. Therefore, we sought to identify distinct fibroblast subpopulations at the single-cell level. METHODS: Using single-cell quantitative PCR as a powerful tool to study heterogeneity and rare cell events, in a high-throughput manner a panel of gene targets are run simultaneously on transcripts isolated from single cells obtained by fluorescence-activated cell sort...
April 3, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28359326/hsp90%C3%AE-promoted-endothelial-cell-dependent-tumor-angiogenesis-in-hepatocellular-carcinoma
#13
Jing Meng, Yanrong Liu, Jingxia Han, Qiang Tan, Shuang Chen, Kailiang Qiao, Honggang Zhou, Tao Sun, Cheng Yang
BACKGROUND: Vascular endothelial growth factor receptors (VEGFRs) are the major receptors involved in endothelial cell-dependent tumor angiogenesis. There are studies account for the effects of Hsp90 on angiogenesis, but the role and mechanism of Hsp90β isoforms and NVP-BEP800, a specific inhibitor of Hsp90β, in tumor angiogenesis is rarely mentioned. METHODS: Immunohistochemistry and statistical analysis was used to evaluate the correlation between Hsp90β expression, CD31 endothelial cell-dependent vessel density, and VEGFRs expression in tissue samples of 96 HCCs...
March 31, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28356150/pregnane-x-receptor-is-associated-with-unfavorable-survival-and-induces-chemotherapeutic-resistance-by-transcriptional-activating-multidrug-resistance-related-protein-3-in-colorectal-cancer
#14
Yan Dong, Zhe Wang, Gan-Feng Xie, Chong Li, Wen-Wei Zuo, Gang Meng, Cheng-Ping Xu, Jian-Jun Li
BACKGROUND: Although chemotherapy represents a predominant anti-cancer therapeutic modality, drug treatment efficacy is often limited due to the development of resistant tumor cells. The pregnane X receptor (PXR) affects chemotherapeutic effects by regulating targets involved in drug metabolism and transportation, but the regulatory mechanism is poorly understood. METHODS: Oxaliplatin (L-OHP) content in tumor cells was analyzed by mass cytometry. The roles of PXR on cancer cell proliferation, apoptosis and tumor growth with L-OHP-treated were investigated by MTS, colony formation, flow cytometry and xenograft tumor assays...
March 29, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28356111/tumor-derived-cxcl5-promotes-human-colorectal-cancer-metastasis-through-activation-of-the-erk-elk-1-snail-and-akt-gsk3%C3%AE-%C3%AE-catenin-pathways
#15
Jingkun Zhao, Baochi Ou, Dingpei Han, Puxiongzhi Wang, Yaping Zong, Congcong Zhu, Di Liu, Minhua Zheng, Jing Sun, Hao Feng, Aiguo Lu
BACKGROUND: Metastasis is a major cause of death in human colorectal cancer patients. However, the contribution of chemokines in the tumor microenvironment to tumor metastasis is not fully understood. METHODS: Herein, we examinined several chemokines in colorectal cancer patients using chemokine ELISA array. Immunohistochemistry was used to detect expression of CXCL5 in colorectal cancer patients tissues. Human HCT116 and SW480 cell lines stably transfected with CXCL5, shCXCL5 and shCXCR2 lentivirus plasmids were used in our in vitro study...
March 29, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28340593/erratum-to-aryl-hydrocarbon-receptor-cytochrome-p450-1a1-pathway-mediates-breast-cancer-stem-cells-expansion-through-pten-inhibition-and-%C3%AE-catenin-and-akt-activation
#16
Abdullah Al-Dhfyan, Ali Alhoshani, Hesham M Korashy
No abstract text is available yet for this article.
March 24, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28327194/upregulation-of-the-long-noncoding-rna-uca1-affects-the-proliferation-invasion-and-survival-of-hypopharyngeal-carcinoma
#17
Ye Qian, Dayu Liu, Shengda Cao, Ye Tao, Dongmin Wei, Wenming Li, Guojun Li, Xinliang Pan, Dapeng Lei
BACKGROUND: Several long noncoding RNAs (lncRNAs) are involved in oncogenesis. METHODS AND RESULTS: Our microarray analysis showed that numerous lncRNAs are dysregulated in hypopharyngeal squamous cell carcinoma (HSCC) tumor tissues as compared with normal tissues. Among those lncRNAs, urothelial carcinoma-associated 1 (UCA1) has been found to have an oncogenic role in HSCC. We confirmed the upregulation of UCA1 in HSCC by assessing its expression levels in a cohort of 53 patient tumors and paired non-tumor samples...
March 21, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28327155/vasohibin-2-reduces-chemosensitivity-to-gemcitabine-in-pancreatic-cancer-cells-via-jun-proto-oncogene-dependent-transactivation-of-ribonucleotide-reductase-regulatory-subunit-m2
#18
Min Tu, Haifeng Li, Nan Lv, Chunhua Xi, Zipeng Lu, Jishu Wei, Jianmin Chen, Feng Guo, Kuirong Jiang, Guoxin Song, Wentao Gao, Yi Miao
BACKGROUND: Vasohibin 2 (VASH2) has previously been identified as an agiogenenic factor and a cancer related protein. Here we investigated the association of VASH2 expression and chemoresistance in pancreatic cancer. METHODS: Immunohistochemical staining for VASH2 was performed on 102 human pancreatic cancer samples. Pancreatic cancer cell line models exhibiting overexpression or knockdown of VASH2 were generated. Gene expression analyses were carried out to determine genes differentially regulated by VASH2...
March 21, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28327152/trim8-restores-p53-tumour-suppressor-function-by-blunting-n-myc-activity-in-chemo-resistant-tumours
#19
Francesca Mastropasqua, Flaviana Marzano, Alessio Valletti, Italia Aiello, Giuseppe Di Tullio, Annalisa Morgano, Sabino Liuni, Elena Ranieri, Luisa Guerrini, Giuseppe Gasparre, Elisabetta Sbisà, Graziano Pesole, Antonio Moschetta, Mariano Francesco Caratozzolo, Apollonia Tullo
BACKGROUND: TRIM8 plays a key role in controlling the p53 molecular switch that sustains the transcriptional activation of cell cycle arrest genes and response to chemotherapeutic drugs. The mechanisms that regulate TRIM8, especially in cancers like clear cell Renal Cell Carcinoma (ccRCC) and colorectal cancer (CRC) where it is low expressed, are still unknown. However, recent studies suggest the potential involvement of some microRNAs belonging to miR-17-92 and its paralogous clusters, which could include TRIM8 in a more complex pathway...
March 21, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28320399/vasculogenic-mimicry-signaling-revisited-focus-on-non-vascular-ve-cadherin
#20
REVIEW
Daniel Delgado-Bellido, Santiago Serrano-Saenz, Mónica Fernández-Cortés, F Javier Oliver
Vasculogenic mimicry (VM) is a blood supply system independent of endothelial vessels in tumor cells from different origins. It reflects the plasticity of aggressive tumor cells that express vascular cell markers and line tumor vasculature. The presence of VM is associated with a high tumor grade, short survival, invasion and metastasis. Endothelial cells (ECs) express various members of the cadherin superfamily, in particular vascular endothelial (VE-) cadherin, which is the main adhesion receptor of endothelial adherent junctions...
March 21, 2017: Molecular Cancer
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