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https://www.readbyqxmd.com/read/28919490/alcohol-exposure-induces-chick-craniofacial-bone-defects-by-negatively-affecting-cranial-neural-crest-development
#1
Ping Zhang, Guang Wang, Zhuangling Lin, Yushi Wu, Jing Zhang, Meng Liu, Kenneth Ka Ho Lee, Manli Chuai, Xuesong Yang
Excess alcohol consumption during pregnancy could lead to fetal alcohol syndrome (FAS). However, the molecular mechanism leading to craniofacial abnormality, a feature of FAS, is still poorly understood. The cranial neural crest cells (NCCs) contribute to the formation of the craniofacial bones. Therefore, NCCs exposed to ethanol was investigated - using chick embryos and in vitro explant culture as experimental models. We demonstrated that exposure to 2% ethanol induced craniofacial defects, which includes parietal defect, in the developing chick fetus...
September 14, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28918084/uranium-isotopes-in-tree-bark-as-a-spatial-tracer-of-environmental-contamination-near-former-uranium-processing-facilities-in-southwest-ohio
#2
Elise Conte, Elisabeth Widom, David Kuentz
Inappropriate handling of radioactive waste at nuclear facilities can introduce non-natural uranium (U) into the environment via the air or groundwater, leading to anthropogenic increases in U concentrations. Uranium isotopic analyses of natural materials (e.g. soil, plants or water) provide a means to distinguish between natural and anthropogenic U in areas near sources of radionuclides to the environment. This study examines the utility of two different tree bark transects for resolving the areal extent of U atmospheric contamination using several locations in southwest Ohio that historically processed U...
September 14, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28915612/the-roles-of-ing5-in-gliomas-a-good-marker-for-tumorigenesis-and-a-potential-target-for-gene-therapy
#3
Shuang Zhao, Zhi-Juan Zhao, Hao-Yu He, Ji-Cheng Wu, Xiao-Qing Ding, Lei Yang, Ning Jia, Zhi-Jie Li, Hua-Chuan Zheng
To elucidate the anti-tumor effects and molecular mechanisms of ING5 on glioma cells, we overexpressed it in U87 cells, and examined the phenotypes and their relevant molecules. It was found that ING5 overexpression suppressed proliferation, energy metabolism, migration, invasion, and induced G2/M arrest, apoptosis, dedifferentiation, senescence, mesenchymal- epithelial transition and chemoresistance to cisplatin, MG132, paclitaxel and SAHA in U87 cells. There appeared a lower expression of N-cadherin, Twist, Slug, Zeb1, Zeb2, Snail, Ac-H3, Ac-H4, Cdc2, Cdk4 and XIAP, but a higher expression of Claudin 1, Histones 3 and 4, p21, p53, Bax, β-catenin, PI3K, Akt, and p-Akt in ING5 transfectants...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915602/increased-expression-of-calponin-2-is-a-positive-prognostic-factor-in-pancreatic-ductal-adenocarcinoma
#4
Zhaoyan Qiu, Yi Chu, Bing Xu, Qian Wang, Mingzuo Jiang, Xiaowei Li, Gang Wang, Pengfei Yu, Guoxiao Liu, Hua Wang, Huijie Kang, Jiayu Liu, Yu Zhang, Jian-Ping Jin, Kaichun Wu, Jie Liang
Calponin 2 plays an important role in regulating actin cytoskeleton, which is critical for cell division and migration. Previous studies have demonstrated that calponin 2 inhibits prostate cancer cell proliferation and metastasis. However, the role of calponin 2 in pancreatic tumor growth, metastasis and patient survival remains unclear. Here, we demonstrate that the level of calponin 2 is a positive prognostic factor for patients with pancreatic ductal adenocarcinoma (PDAC). Patients with high calponin 2 expression in the tumor presented less lymph node metastasis and longer survival...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28912842/a-reliable-method-for-the-sorting-and-identification-of-aldh-high-cancer-stem-cells-by-flow-cytometry
#5
Zhengwei Leng, Zhao Yang, Lifa Li, Xiaorong Zhong, He Zhou, Yong Li, Gang Yang, Guangjun Zhang, Yongfu Xiong, Tong Zhou, Jianshui Li, Dongsheng Wang, Jingdong Li
Cancer stem cells (CSCs) are a rare tumorigenic population of cells found in multiple types of cancer. It has been suggested that CSCs are responsible for cancer drug resistance, metastasis and recurrence. Therefore, it is important to develop techniques to correctly sort and identify CSCs. In the current study, the sorting and identification of aldehyde dehydrogenase high (ALDH(high)) CSCs was performed using flow cytometry. Cells from three colon cancer cell lines were cultured in serum-free medium to obtain CSCs-enriched spheroid cells...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28904377/kleptoplasty-does-not-promote-major-shifts-in-the-lipidome-of-macroalgal-chloroplasts-sequestered-by-the-sacoglossan-sea-slug-elysia-viridis
#6
Felisa Rey, Elisabete da Costa, Ana M Campos, Paulo Cartaxana, Elisabete Maciel, Pedro Domingues, M Rosário M Domingues, Ricardo Calado, Sónia Cruz
Sacoglossan sea slugs, also known as crawling leaves due to their photosynthetic activity, are highly selective feeders that incorporate chloroplasts from specific macroalgae. These "stolen" plastids - kleptoplasts - are kept functional inside animal cells and likely provide an alternative source of energy to their host. The mechanisms supporting the retention and functionality of kleptoplasts remain unknown. A lipidomic mass spectrometry-based analysis was performed to study kleptoplasty of the sacoglossan sea slug Elysia viridis fed with Codium tomentosum...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28904065/angptl1-interacts-with-integrin-%C3%AE-1%C3%AE-1-to-suppress-hcc-angiogenesis-and-metastasis-by-inhibiting-jak2-stat3-signaling
#7
Qian Yan, Lingxi Jiang, Ming Liu, Dandan Yu, Yu Zhang, Yan Li, Shuo Fang, Yan Li, Ying-Hui Zhu, Yunfei Yuan, Xin Yuan Guan
Downregulation of tumor suppressor signaling plays an important role in the pathogenesis of hepatocellular carcinoma (HCC). Here we report that downregulation of the angiopoietin-like protein ANGPTL1 is associated with vascular invasion, tumor thrombus, metastasis and poor prognosis in HCC. Ectopic expression of ANGPTL1 in HCC cells effectively decreased their in vitro and in vivo tumorigenicity, cell motility and angiogenesis. shRNA-mediated depletion of ANGPTL1 exerted opposing effects. ANGPTL1 promoted apoptosis via inhibition of the STAT3/Bcl-2 mediated anti-apoptotic pathway and decreased cell migration and invasion via downregulation of transcription factors SNAIL and SLUG...
September 13, 2017: Cancer Research
https://www.readbyqxmd.com/read/28903339/ing5-knockdown-enhances-migration-and-invasion-of-lung-cancer-cells-by-inducing-emt-via-egfr-pi3k-akt-and-il-6-stat3-signaling-pathways
#8
Xin-Li Liu, Xu-Tao Zhang, Jin Meng, Hong-Fei Zhang, Yong Zhao, Chen Li, Yang Sun, Qi-Bing Mei, Feng Zhang, Tao Zhang
ING5 belongs to the Inhibitor of Growth (ING) candidate tumor suppressor family, whose functions have been involved in the regulation of chromatin remodeling, cell cycle progression, proliferation and apoptosis. Our previous study has shown that ING5 overexpression inhibits lung cancer aggressiveness via suppressing epithelial to mesenchymal transition (EMT). However, the mechanisms remain largely unknown. In the current study, by Phospho-Kinase array and western blot, we have defined significantly upregulated EGFR/PI3K/Akt and IL-6/STAT3 oncogenic signaling pathways in ING5 knockdown A549 cells, which could be downregulated by ING5 overexpression...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28901471/cxc-chemokine%C3%A2-7-inhibits-growth-and-migration-of-oral-tongue-squamous-cell-carcinoma-cells-mediated-by-the-epithelial%C3%A2-mesenchymal-transition-signaling-pathway
#9
Tong-Jun Liu, Jian-Lian Guo, Xin Xu
Oral tongue squamous cell carcinoma (OTSCC) is the most common oral malignancy with different histopathological symptoms and etiology of tumorigenesis. Migration and invasion is the most important characteristics of OTSCC, and limits tumor therapy in clinics. The epithelial‑to‑mesenchymal transition (EMT) signaling pathway is an important process in the progress of tumor cell migration and invasion. Previous studies have indicated that C‑X‑C chemokine receptor‑7 (CXCR‑7) promotes the progression and metastasis of tumor cells, presenting a potential target molecule for cancer therapy...
September 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28899455/mitotic-arrest-deficient-protein-2b-overexpressed-in-lung-cancer-promotes-proliferation-emt-and-metastasis
#10
Hua Zhang, Xiuquan He, Wenfei Yu, Bingqing Yue, Ziting Yu, Ying Qin
As the non-catalytic subunit of mammalian DNA polymerase, mitotic arrest-deficient protein 2B (MAD2B) has been reportedto play a role in cell-cycle regulation, DNA damage tolerance, gene expression and carcinogenesis. Although its expression is known to be associated with poor prognosis in several types of human cancers, the significance of MAD2B expression in lung malignancies is still unclear. Our study showed that MAD2B expression significantly increased in lung cancer, especially in the metastatic tissues...
September 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28899232/rna-seq-reveals-a-central-role-for-lectin-c1q-and-von-willebrand-factor-a-domains-in-the-defensive-glue-of-a-terrestrial-slug
#11
Andrew M Smith, Cassandra Papaleo, Christopher W Reid, Joseph M Bliss
The tough, hydrogel glue produced by the slug Arion subfuscus achieves impressive performance through metal-based, protein cross-links. The primary sequence of these proteins was determined through transcriptome sequencing and proteome analysis by tandem mass spectrometry. The main proteins that correlate with adhesive function are a group of 11 small, highly abundant lectin-like proteins. These proteins matched the ligand-binding C-lectin, C1q or H-lectin domains. The variety of different lectin-like proteins and their potential for oligomerization suggests that they function as versatile and potent cross-linkers...
September 13, 2017: Biofouling
https://www.readbyqxmd.com/read/28890036/tumoral-and-stromal-expression-of-slug-zeb1-and-zeb2-in-brain-metastasis
#12
Masaya Nagaishi, Satoshi Nakata, Yuko Ono, Koji Hirata, Yoshihiro Tanaka, Kensuke Suzuki, Hideaki Yokoo, Akio Hyodo
Epithelial-to-mesenchymal transition (EMT) has an active role in the malignant progression of epithelial tumor cells. The aim of the study was to identify the existence of the EMT mechanism in brain metastasis. Tumors from 29 patients with brain metastases were assessed in terms of the immunoexpression of EMT-related factors including Slug, ZEB1, ZEB2, and E-cadherin in tumor cells and the surrounding mesenchymal stromal cells. The results were compared between primary tumors and their matched metastatic brain tumors...
September 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28887549/satb2-%C3%AE-catenin-tcf-lef-pathway-induces-cellular-transformation-by-generating-cancer-stem-cells-in-colorectal-cancer
#13
Wei Yu, Yiming Ma, Sharmila Shankar, Rakesh K Srivastava
Recent studies have demonstrated the involvement of colorectal cancer (CRC) stem cells (CSC) in transformation, cancer progression and metastasis. The main goal of this paper was to examine the molecular mechanisms by which SATB2 induced malignant transformation of colorectal epithelial cells. SATB2 induced malignant transformation and these transformed cells gained the characteristics of CSCs by expressing stem cell markers (CD44, CD133, LGR5 and DCLK1) and transcription factors (c-Myc, Nanog and Sox2). Overexpression of SATB2 in normal colorectal epithelial cells increased cell motility, migration and invasion, which were associated with an increase in N-cadherin and Zeb1, and decrease in E-cadherin expression...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28887167/identification-of-slug-and-sox7-as-transcriptional-repressors-binding-to-the-hepatitis-b-virus-core-promoter
#14
Hui Ling Ko, Tze Hau Lam, Huijin Ng, Jiaying Toh, Liang Wei Wang, Ee Chee Ren
BACKGROUND & AIMS: The Hepatitis B Virus (HBV) is carried in many non-liver cell types but does not actively replicate in them. We investigated the possibility that these cells possess HBVCP transcription inhibitory mechanisms specifically absent in liver cells, which together with other liver-specific mechanisms such as NTCP-mediated entry, enable liver cells to effectively produce HBV. METHODS: Liver and non-liver cell lines were screened for their capacity to activate the HBVCP and synthesize pgRNA...
September 5, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28881746/prostate-derived-ets-factor-improves-prognosis-and-represses-proliferation-and-invasion-in-hepatocellular-carcinoma
#15
Er-Bao Chen, Shao-Lai Zhou, Xu-Guang Pang, Dan Yin, Pei-Zhen Miao, Yi Yang, Qing Chen, Kai Zhu, Dong-Mei Gao, Tian-Shu Liu, Xiao-Yi Wang, Ying-Hong Shi, Wei-Zhong Wu, Jian Zhou, Zheng-Jun Zhou, Zhi Dai
Prostate-derived E-twenty-six (ETS) factor (PDEF), an epithelium-specific ETS transcription factor, regulates carcinogenesis and tumor progression. The prognostic importance and biologic functions in hepatocellular carcinoma (HCC) have not been established. We investigated PDEF expression in 400 HCC patients using quantitative real-time polymerase chain reaction, western blot and immunohistochemistry analysis. PDEF expression was significantly lower in tumors than in peritumoral tissues. Lower PDEF levels were associated with poorer prognosis in patients...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28881737/galeterone-and-its-analogs-inhibit-mnk-eif4e-axis-synergize-with-gemcitabine-impede-pancreatic-cancer-cell-migration-invasion-and-proliferation-and-inhibit-tumor-growth-in-mice
#16
Andrew K Kwegyir-Afful, Francis N Murigi, Puranik Purushottamachar, Vidya P Ramamurthy, Marlena S Martin, Vincent C O Njar
Survival rate for pancreatic cancer (pancreatic ductal adenocarcinoma, PDAC) is poor, with about 80% of patients presenting with the metastatic disease. Gemcitabine, the standard chemotherapeutic agent for locally advanced and metastatic PDAC has limited efficacy, attributed to innate/acquired resistance and activation of pro-survival pathways. The Mnk1/2-eIF4E and NF-κB signaling pathways are implicated in PDAC disease progression/metastasis and also associated with gemcitabine-induced resistance in PDAC...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28870549/altered-expression-of-e-cadherin-related-transcription-factors-indicates-partial-epithelial-mesenchymal-transition-in-aggressive-meningiomas
#17
Maren Wallesch, Doreen Pachow, Christina Blücher, Raimund Firsching, Jan-Peter Warnke, Werner E K Braunsdorf, Elmar Kirches, Christian Mawrin
E-Cadherin has been suggested to be involved in meningioma progression but is also known as a key player of epithelial to mesenchymal transition (EMT). We wondered whether the adherens junction protein E-Cadherin, the tight junction protein Zo-1, and transcription factors suppressing E-Cadherin expression (Slug, Snail, Twist, Zeb-1) are differentially expressed between histopathological subtypes of meningioma, and if the expression of these factors is related to biological features of meningiomas. Analyzing 85 meningiomas of various histopathological subtypes and grades of malignancy by immunohistochemistry and 50 of them in addition by real-Time-PCR, we observed significantly reduced expression of Zeb-1, Twist and Slug, together with slightly increased expression levels for E-Cadherin and Zo- 1 in fibroblastic WHO-grade I tumors compared to meningothelial WHO grade I tumors, contradicting the hypothesis of EMT in the fibroblastic meningiomas characterized by mesenchymal appearance...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28870540/con4ei-slug-mucosal-irritation-smi-test-method-for-hazard-identification-and-labelling-of-serious-eye-damaging-and-eye-irritating-chemicals
#18
E Adriaens, R Guest, J A Willoughby, P Fochtman, H Kandarova, S Verstraelen, A R Van Rompay
Assessment of ocular irritancy is an international regulatory requirement in the safety evaluation of industrial and consumer products. Although many in vitro ocular irritation assays exist, alone they are incapable of fully categorizing chemicals. The objective of CEFIC-LRI-AIMT6-VITO CON4EI (CONsortium for in vitro Eye Irritation testing strategy) project was to develop tiered testing strategies for eye irritation assessment that can lead to complete replacement of the in vivo Draize rabbit eye test (OECD TG 405)...
September 1, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28869596/gsk3%C3%AE-controls-epithelial-mesenchymal-transition-and-tumor-metastasis-by-chip-mediated-degradation-of-slug
#19
S-H Kao, W-L Wang, C-Y Chen, Y-L Chang, Y-Y Wu, Y-T Wang, S-P Wang, A I Nesvizhskii, Y-J Chen, T-M Hong, P-C Yang
This corrects the article DOI: 10.1038/onc.2013.279.
September 4, 2017: Oncogene
https://www.readbyqxmd.com/read/28869438/decreased-expression-of-muc1-induces-apoptosis-and-inhibits-migration-in-pancreatic-cancer-panc-1-cells-via-regulation-of-slug-pathway
#20
Ping Zhao, Meng Meng, Bin Xu, Aiping Dong, Guangzhen Ni, Lianfang Lu
MUC1, a membrane tethered mucin glycoprotein, is overexpressed in > 60% of human pancreatic cancers (PCs), and is associated with poor prognosis and enhanced metastasis. Here, we report the effect of silencing MUC1 expression on the growth, migration and invasive ability of pancreatic cancer cells, and explored its mechanisms. We observed that siRNA mediated suppression of the MUC1 expression significantly reduced invasive and migrative capability and induced apoptosis of the pancreatic cancer PANC-1 cells...
August 25, 2017: Cancer Biomarkers: Section A of Disease Markers
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