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https://www.readbyqxmd.com/read/28925484/mir-22-inhibits-lung-cancer-cell-emt-and-invasion-through-targeting-snail
#1
K Zhang, X-Y Li, Z-M Wang, Z-F Han, Y-H Zhao
OBJECTIVE: Snail is an important factor in regulating epithelial mesenchymal transition (EMT). Its elevation is related to the enhancement of lung cancer invasion. MicroRNA-22 (MiR-22) plays a role in regulating lung cancer cell invasion. Bioinformatics analysis showed the complementary binding site between miR-22 and Snail. This study aimed to investigate the role of miR-22 in regulating Snail and affecting lung cancer cell invasion and metastasis. MATERIALS AND METHODS: Dual luciferase assay confirmed the targeted relationship between miR-22 and Snail...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28922871/divergence-of-the-venom-exogene-repertoire-in-two-sister-species-of-turriconus
#2
Qing Li, Neda Barghi, Aiping Lu, Alexander E Fedosov, Pradip K Bandyopadhyay, Arturo O Lluisma, Gisela P Concepcion, Mark Yandell, Baldomero M Olivera, Helena Safavi-Hemami
The genus Conus comprises approximately 700 species of venomous marine cone snails that are highly efficient predators of worms, snails, and fish. In evolutionary terms, cone snails are relatively young with the earliest fossil records occurring in the Lower Eocene, 55 Ma. The rapid radiation of cone snail species has been accompanied by remarkably high rates of toxin diversification. To shed light on the molecular mechanisms that accompany speciation, we investigated the toxin repertoire of two sister species, Conus andremenezi and Conus praecellens, that were until recently considered a single variable species...
September 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28920171/an-investigation-of-the-host-specificity-of-metacercariae-of-species-of-apophallus-digenea-heterophyidae-in-freshwater-fishes-using-morphological-experimental-and-molecular-methods
#3
Diána Sándor, Kálmán Molnár, David I Gibson, Csaba Székely, Gábor Majoros, Gábor Cech
Metacercariae of species of the genus Apophallus Lühe, 1909, infecting the fins and skin of freshwater fishes, frequently cause black spot disease. Two species, Apophallus muehlingi (Jägerskiöld, 1899) and A. donicus (Skrjabin & Lindtrop, 1919), are known to occur in Hungarian fishes. It has generally been thought that metacercariae of A. muehlingi infect cyprinid fishes, whereas those of A. donicus develop in percids. As part of a morphological, experimental and molecular study, metacercariae were collected from 99 infected specimens of five cyprinid hosts (Abramis brama, Blicca bjoerkna, Chondrostoma nasus, Squalius cephalus, Scardinius erythrophthalmus) and 18 infected specimens of two percid hosts (Gymnocephalus cernua, Perca fluviatilis) in Hungarian natural waters (Lake Balaton, River Danube)...
September 17, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28919836/increase-in-density-of-genetically-diverse-invasive-asian-shore-crab-hemigrapsus-sanguineus-populations-in-the-gulf-of-maine
#4
Joshua P Lord, Larissa M Williams
Hemigrapsus sanguineus, the Asian shore crab, has rapidly replaced Carcinus maenas, the green crab, as the most abundant crab on rocky shores in the northwest Atlantic since its introduction to the United States (USA) in 1988. The northern edge of this progressing invasion is the Gulf of Maine, where Asian shore crabs are only abundant in the south. We compared H. sanguineus population densities to those from published 2005 surveys and quantified genetic variation using the cytochrome c oxidase subunit I gene...
April 2017: Biological Invasions
https://www.readbyqxmd.com/read/28917540/galba-truncatula-and-fasciola-hepatica-genetic-costructures-and-interactions-with-intermediate-host-dispersal
#5
Ana C Correa, Thierry De Meeûs, Gilles Dreyfuss, Daniel Rondelaud, Sylvie Hurtrez-Boussès
Antagonistic interactions between hosts and parasites are key structuring forces in natural populations. Demographic factors like extinction, migration and the effective population size shape host-parasite metapopulational dynamics. Therefore, to understand the evolution of host-parasite systems it is necessary to study the distribution of the genetic variation of both entities simultaneously. In this paper, we investigate the population genetics co-structure of parasites and hosts within a metapopulation of the liver fluke, Fasciola hepatica, and two of its intermediate hosts, the main intermediate host in Europe, Galba truncatula, and a new intermediate host, Omphiscola glabra, in Central France...
September 13, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28915788/morphogenesis-along-the-animal-vegetal-axis-fates-of-primary-quartet-micromere-daughters-in-the-gastropod-crepidula-fornicata
#6
Deirdre C Lyons, Kimberly J Perry, Jonathan Q Henry
BACKGROUND: The Spiralia are a large, morphologically diverse group of protostomes (e.g. molluscs, annelids, nemerteans) that share a homologous mode of early development called spiral cleavage. One of the most highly-conserved features of spiralian development is the contribution of the primary quartet cells, 1a-1d, to the anterior region of the embryo (including the brain, eyes, and the anterior ciliary band, called the prototroch). Yet, very few studies have analyzed the ultimate fates of primary quartet sub-lineages, or examined the morphogenetic events that take place in the anterior region of the embryo...
September 15, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28915612/the-roles-of-ing5-in-gliomas-a-good-marker-for-tumorigenesis-and-a-potential-target-for-gene-therapy
#7
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
#8
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/28913753/herbivorous-snails-can-increase-water-clarity-by-stimulating-growth-of-benthic-algae
#9
Xiufeng Zhang, William D Taylor, Lars G Rudstam
Eutrophication in shallow lakes is characterized by a switch from benthic to pelagic dominance of primary productivity that leads to turbid water, while benthification is characterized by a shift in primary production from the pelagic zone to the benthos associated with clear water. A 12-week mesocosm experiment tested the hypothesis that the herbivorous snail Bellamya aeruginosa stimulates the growth of pelagic algae through grazing on benthic algae and through accelerating nutrient release from sediment. A tube-microcosm experiment using (32)P-PO4 as a tracer tested the effects of the snails on the release of sediment phosphorus (P)...
September 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28913719/green-garden-snail-cantareus-apertus-as-biomonitor-and-sentinel-for-integrative-metal-pollution-assessment-in-roadside-soils
#10
Anwar Mleiki, Ionan Marigómez, Najoua Trigui El Menif
The present investigation was conceived to study, in a small scale field study, the potential of the green garden snail, Cantareus apertus, as biomonitor and sentinel for integrative metal pollution assessment in soils. For this purpose, we investigated the association between the trace metal (Cd, Pb, As, Fe, Cr, Cu, Ni, and Zn) concentrations in soil, plants (Trifolium repens), and C. apertus depending on the distance (20, 150, and 700 m) from a main roadside in Tunisia as well as between metal concentrations and biomarkers of oxidative stress, oxidative damage, and neurotoxicity in C...
September 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28912889/cbx8-suppresses-tumor-metastasis-via-repressing-snail-in-esophageal-squamous-cell-carcinoma
#11
Gang Wang, Jianjun Tang, Weixiang Zhan, Ruhua Zhang, Meifang Zhang, Dan Liao, Xin Wang, Yuanzhong Wu, Tiebang Kang
The poor clinical outcome and prognosis of esophageal squamous cell carcinoma (ESCC) is mainly attributed to its highly invasive and metastatic nature, making it urgent to further elicit the molecular mechanisms of the metastasis of ESCC. The function of each polycomb chromobox (CBX) protein in cancer is cell-type-dependent. Although CBX8 has been reported to promote the esophageal squamous cell carcinoma (ESCC) tumorigenesis, its role in ESCC metastasis has not been explored yet. In this study, we report that the inhibition of cell migration, invasion, and metastasis in ESCC requires CBX8-mediated repression of Snail, a key transcription factor that induces epithelial-to-mesenchymal transition (EMT), and that CBX8 inversely correlated with Snail in the ESCC tissues...
2017: Theranostics
https://www.readbyqxmd.com/read/28912842/a-reliable-method-for-the-sorting-and-identification-of-aldh-high-cancer-stem-cells-by-flow-cytometry
#12
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/28904065/angptl1-interacts-with-integrin-%C3%AE-1%C3%AE-1-to-suppress-hcc-angiogenesis-and-metastasis-by-inhibiting-jak2-stat3-signaling
#13
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/28903410/rassf6-downregulation-promotes-the-epithelial-mesenchymal-transition-and-predicts-poor-prognosis-in-colorectal-cancer
#14
Rui Zhou, Lin Qiu, Xiaolong Liu, Lijuan Ling, Ninglei Li, Kun Zhou, Jingbo Sun, Jian Yan, Canliang Tan, Xiaoping Huang, Luzhe Han, Liangchun Yin, Gang Xiao, Lixin Liu
Distant metastasis is the primary barrier for the successful treatment of patients with colorectal cancer, and thus, searching for new therapeutic targets by further exploring the molecular mechanisms of colorectal cancer metastasis is important. In this study, we investigated the biological and clinical significance of RASSF6 in colorectal cancer as well as the underlying molecular mechanisms. We found that low RASSF6 expression corresponds to a poor prognosis in colorectal cancer patients, and low RASSF6 expression is distinctly associated with tumour progression...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28903396/igfbp2-plays-an-important-role-in-heat-shock-protein-27-mediated-cancer-progression-and-metastasis
#15
Chin-Sheng Hung, Chien-Yu Huang, Chia-Hwa Lee, Wei-Yu Chen, Ming-Te Huang, Po-Li Wei, Yu-Jia Chang
Heat shock protein 27 (Hsp27) is a key chaperone that interacts with over 200 client proteins. The expression of Hsp27 might be correlated with poor outcome in many types of cancer. Previous study indicated that Hsp27 might be an important biomarker in hepatocellular carcinoma (HCC). However, the detailed mechanism is less well understood. The shRNA-mediated silencing of Hsp27 decreased the proliferation, migration and invasion of HCC cells. In a xenograft model, the silencing of Hsp27 reduced tumor progression...
August 15, 2017: Oncotarget
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
#16
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/28902487/angiostrongylus-cantonensis-agent-of-a-sometimes-fatal-globally-emerging-infectious-disease-rat-lungworm-disease
#17
Robert H Cowie
Angiostrongylus cantonensis, the rat lungworm, is a dangerous invasive species that is the agent of a potentially fatal globally emerging infectious disease. Humans are infected most commonly by ingestion, deliberately or inadvertently, of the parasite larvae in their intermediate snail hosts. The larvae make their way to the brain where they can cause severe neurological damage before eventually dying. Symptoms of the disease are diverse, making it difficult to diagnose. Treatment is primarily with corticosteroids to reduce inflammation, while treatment with anthelmintics to kill the worms remains controversial...
September 13, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28901751/sulfate-aerosols-promote-lung-cancer-metastasis-by-epigenetically-regulating-the-epithelial-to-mesenchymal-transition-emt
#18
Yang Yun, Rui Gao, Huifeng Yue, Lin Guo, Guangke Li, Nan Sang
Secondary inorganic aerosols (SIA), particularly sulfate aerosols, are central particulate matter (PM) constituents of severe haze formation in China and exert profound impacts on human health; however, our understanding of the mechanisms by which sulfate aerosols cause malignancy in lung carcinogenesis remains incomplete. Here, we show that exposure to secondary inorganic aerosols induced the invasion and migration of lung epithelial cells, and that (NH4)2SO4 exerted the most serious effects in vitro and promoted lung tumor metastasis in vivo...
September 13, 2017: Environmental Science & Technology
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
#19
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/28900500/cdc27-induces-metastasis-and-invasion-in-colorectal-cancer-via-the-promotion-of-epithelial-to-mesenchymal-transition
#20
Lin Qiu, Xin Tan, Jiaxin Lin, Ran-Yi Liu, Shuai Chen, Rong Geng, Jiangxue Wu, Wenlin Huang
Distant metastasis is the primary cause of cancer-related death among patients with colorectal cancer (CRC), and the discovery of novel therapeutic targets by further exploring the molecular mechanisms of CRC metastasis is therefore urgently needed. We previously illustrated that CDC27 overexpression promoted proliferation in CRC, but no studies have emphasized the role of CDC27 in cancer metastasis thus far. Our previous data indicated that the expression of CDC27 was significantly associated with distant metastasis in patient tissues, and therefore, in this study, we focused on the investigation of the potential mechanisms of CDC27 in CRC metastasis...
2017: Journal of Cancer
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