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https://www.readbyqxmd.com/read/29775897/the-gastric-mucosal-protective-effects-of-astragaloside-iv-in-mnng-induced-gpl-rats
#1
Tiantian Cai, Chengzhe Zhang, Ziming Zhao, Siyi Li, Haobin Cai, Xiaodong Chen, Dake Cai, Wei Liu, Yan Yan, Kaifeng Xie, Huafeng Pan, Xiaohui Zeng
Gastric Cancer is one of the most common types of cancer. And the occurrence of gastric carcinoma is an evolutionary histopathological stage. As a result, further research of GPL, which is a borderline of gastric cancer, is indispensable for preventing the formation and development of gastric carcinoma. Several studies have demonstrated a correlation between the expression of autophagy, apoptosis and Gastric cancer (GC). However, the effects of autophagy and apoptosis on human gastric cancer progression, particularly on gastric precancerous lesions (GPL), have not totally been investigated...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29775717/temozolomide-loaded-nano-lipid-based-chitosan-hydrogel-for-nose-to-brain-delivery-characterization-nasal-absorption-histopathology-and-cell-line-study
#2
Anam Khan, Mohd Aqil, Syed Sarim Imam, Abdul Ahad, Yasmin Sultana, Asgar Ali, Khalid Khan
The present study was designed to develop and optimize Temozolomide nano lipid chitosan gel delivery (TMZNLCHG) to target the brain through nasal route. The formulation was developed using chitosan as a gelling agent and Vit E: gelucire 44/14 blend as lipid. The formulations were evaluated for particle size, drug loading, morphology, drug release, nasal diffusion, cell line study, and histopathology study. The average particle size, PDI, %EE, loading, drug release, and % permeation were found to be 134 nm, 0...
May 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29775598/selective-cytotoxicity-of-the-nampt-inhibitor-fk866-toward-gastric-cancer-cells-with-markers-of-the-epithelial-mesenchymal-transition-due-to-loss-of-naprt
#3
Jooyoung Lee, Hyosil Kim, Jae Eun Lee, Su-Jin Shin, Sejin Oh, Sungjin Kwon, Hakhyun Kim, Yoon Young Choi, Michael A White, Soonmyung Paik, Jae-Ho Cheong, Hyun Seok Kim
BACKGROUND & AIMS: Markers of the epithelial-mesenchymal transition (EMT) in gastric tumor tissues are associated with poor outcomes of patients. We performed a screen to identify pharmacologic compounds that kill gastric cancer cells with EMT-associated gene expression patterns and investigate their mechanisms. METHODS: We identified 29 gastric cancer cell lines with gene expression signature previously associated with an EMT subtype, based on data from RNA sequence analyses, and confirmed their mesenchymal phenotypes of 7 lines (Hs746T, SNU1750, MKN1, SK4, SNU484, SNU668, and YCC11), based in invasive activity and protein markers...
May 15, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29775390/polarization-and-distribution-of-tumor-associated-macrophages-and-cox-2-expression-in-basal-cell-carcinoma-of-the-ocular-adnexae
#4
Ute Kaiser, Karin U Loeffler, Jennifer Nadal, Frank G Holz, Martina C Herwig-Carl
PURPOSE: Basal cell carcinoma (BCC) is a locally invasive skin tumor which can be subdivided into a circumscribed nodular and an invasive fibrosing subtype. There is increasing evidence that macrophages play an important role in interacting between tumor cells and their microenvironment, thereby affecting not only the invasive potential but also the patients' prognosis. Thus, we wanted to compare these two BCC variants with regard to tumor-related inflammation, COX-2 expression, distribution and polarization of tumor-associated macrophages...
May 18, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29775303/simultaneous-targeting-of-rgd-integrins-and-dual-murine-double-minute-proteins-in-glioblastoma-multiforme
#5
Francesco Merlino, Simona Daniele, Valeria La Pietra, Salvatore Di Maro, Francesco Saverio Di Leva, Diego Brancaccio, Stefano Tomassi, Stefano Giuntini, Linda Cerofolini, Marco Fragai, Claudio Luchinat, Florian Reichart, Chiara Cavallini, Barbara Costa, Rebecca Piccarducci, Sabrina Taliani, Federico Da Settimo, Claudia Martini, Horst Kessler, Ettore Novellino, Luciana Marinelli
In the fight against Glioblastoma Multiforme, recent literature data have highlighted that integrin α5β1 and p53 are part of convergent pathways in the control of glioma apoptosis. This observation prompted us to seek a molecule able to simultaneously modulate both target families. Analyzing the results of a previous virtual screening against murine double minute 2 protein (MDM2), we envisaged that Arg-Gly-Asp (RGD)-mimetic molecules could be inhibitors of MDM2/4. Herein we present the discovery of compound 7, which inhibits both MDM2/4 and α5β1/αvβ3 integrins...
May 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29774999/-effects-of-stromal-interaction-molecule-1-rna-interference-on-the-cell-proliferation-and-apoptosis-in-human-laryngeal-cancer
#6
J Ye, J Xie
Objective: To study the effects of stromal interaction molecule 1 (STIM1) RNA interference on cell proliferation, apoptosis, invasion and migration ability in vitro in human laryngeal cancer cells Hep-2. Method: Lentivirus transfection was used to realize the STIM1 RNA interference in human laryngeal cancer cells Hep-2. STIM1 RNA interference was verified by real-time PCR and western blotting. The cell proliferation was analyzed by CCK-8 method, Transwell chamber and wound scratch assay were used to detect cell invasion and migration ability, respectively...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774996/-study-of-gonadotropin-releasing-hormone-on-suppressing-migrationg-and-invationg-of-human-nasopharyngeal-carcinoma-cells-cne2
#7
Y H Sun, T T Kong, T T Wang, H F Zhu, T W Zhuang, D P Wang
Objective: The aim of this study is to investigate the effect of gonadotropin releasing hormone (GnRH) on suppressing cell viability, apoptosis, migrationg and invationg of human nasopharyngeal carcinoma cells CNE2. Method: Nasopharyngeal carcinoma tissues and postnasal catarrh tissues were collected, the expression of GnRH positive cells and GnRH mRNA were detected by immunohistochemical staining and qRT-PCR. The human nasopharyngeal carcinoma CNE2 cells and immortalized nasopharyngeal epithelial cell line NP69 were cultured in vitro, and the expression of GnRH positive cells and GnRH mRNA were detected by immunohistochemical staining and qRT-PCR...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774995/-study-on-the-relationship-between-mct-1-and-p53-in-laryngeal-squamous-cell-carcinoma
#8
Y B Wang, O Xu, R J Zhang, C G Shan
Objective: The aim of this study is to investigate the expression and clinical significance of monocarboxylate transporter 1 (MCT-1) and p53 in laryngeal squamous cell carcinoma (LSCC). Method: Immunohistochemical staining of MCT-1 and p53 was carried out in 41 cases of laryngeal squamous cell carcinoma embedded in paraffin, and the relationship between positive expression and clinicopathological data was evaluated. All data were analyzed by SPSS software (Windows version 21.0). Result: In normal mucosa p53 expression was absent; while, the basal "stem cell" layer is highly enriched in MCT-1...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774993/-preliminary-study-on-the-expression-of-egfrv%C3%A2-and-cxcr4-in-head-and-neck-squamous-cell-carcinoma
#9
H D Zhang, S C Gong, Y Q Liu, S B He, Q X Zhang, M Y Si, Z K Yu
Objective: The aim of this study is to detect the expression of EGFRvⅢ and CXCR4 in HNSCC and to explore its possible mechanism. Method: We selected 60 cases of HNSCC from May 2013 to November 2016 in our hospital for surgical treatment, including 44 cases of laryngeal squamous cell carcinoma, 14 cases of hypopharyngeal squamous cell carcinoma, and 2 cases of nasal squamous cell carcinoma. pTNM staging according to AJCC 2010, Ⅲ stage 17 cases, Ⅳa stage 40 cases, and Ⅳb stage 3 cases; according to tumor differentiation degree: 13 cases of high differentiation, moderately differentiation in 31 cases, and 16 cases of low differentiated; primary tumor, positive lymph node metastasis as the experimental group, and 10 cases of adjacent tissues are taken as control (control group)...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774984/comments-on-recent-reports-on-infrared-spectral-detection-of-disease-markers-in-blood-components
#10
Max Diem
The search for disease markers in whole blood, or easily accessible blood components by spectral methods is a highly important aspect in the field of biophotonic research for disease diagnostics and screening, since it promises a minimally invasive approach to assess an individual's state of health. Fourier transform infrared spectroscopy, in particular, promises to be a fast, inexpensive method to search for markers of disease, since it detects variation in the proteome, lipidome and metabolome of biofluids, or activation of immune cells...
May 18, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29774963/glucocorticoid-signaling-regulates-cell-invasion-and-migration-in-the-human-first-trimester-trophoblast-cell-line-sw-71
#11
Edwina P Kisanga, Zhonghua Tang, Seth Guller, Shannon Whirledge
PROBLEM: The development of the placenta and its functions are sensitive to infection and stress, which can activate the hypothalamic-pituitary-adrenal axis. Adrenally produced glucocorticoids are the body's primary mediators of the inflammatory and stress response. Although the glucocorticoid receptor (GR) is expressed in all human villous trophoblast tissue, the effect of glucocorticoids on placentation is not well understood. METHOD OF STUDY: Using microarray analysis, we identified the glucocorticoid-regulated transcriptional profile in the immortalized first-trimester extravillous trophoblast cell line Swan...
May 18, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29774821/minimally-invasive-retroperitoneal-lymphadenectomy
#12
Lukas Lusuardi, Thomas Kunit, Günter Janetschek
The feasibility of laparoscopic retroperitoneal lymphadenectomy (RLA) for testicular cancer was shown >25 years ago. Initially the indication was clinical stage I (CS I) nonseminomatous germ cell tumor (NSGCT). Compared with that of open surgery, the morbidity was much decreased. However, in Europe, surgery for CS I is now replaced by chemotherapy. A relatively new indication is laparoscopic retroperitonal lymphadenectomy for small unilateral residual tumor after chemotherapy. The technique of unilateral lymphadenectomy for both indications is described in detail and with a video...
May 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29774752/effects-of-ethanol-on-the-anticancer-function-of-doxorubicin-in-jj012-cells
#13
Hui Huang, Yanze Li, Mingjuan Wu, Jing Luo, Junhui Nie, Baoyu Hou, Qi He, Yan Diao, Lin Qi, Yuanyuan Zhao, Ying Liu, Dan Yang, Lingyun Zhou
AIM: Chondrosarcoma is difficult to treat because of resistance to conventional chemotherapy and radiotherapy. This study evaluated the effects of ethanol in combination with doxorubicin in chondrosarcoma cells. MATERIALS & METHODS: JJ012, was treated with doxorubicin alone or in combination with ethanol. Effects on cellular proliferation, migration, invasion, apoptosis, and the cell cycle were evaluated. RESULTS: Treatment of JJ012 cells with 100 mM ethanol and doxorubicin resulted in reduced cell growth, invasion, and migration...
May 18, 2018: Future Oncology
https://www.readbyqxmd.com/read/29774524/%C3%AE-e-catenin-is-a-candidate-tumor-suppressor-for-the-development-of-e-cadherin-expressing-lobular-type-breast-cancer
#14
Jolien S de Groot, Max A K Rätze, Miranda van Amersfoort, Tanja Eisemann, Eva J Vlug, Mijanou T Niklaas, Suet-Feung Chin, Carlos Caldas, Paul J van Diest, Jos Jonkers, Johan de Rooij, Patrick W B Derksen
Mutational inactivation of E-cadherin (CDH1) is the main driver of invasive lobular breast cancer (ILC), although approximately 10-15% of all ILCs retain membrane-localized E-cadherin, despite the presence of an apparent non-cohesive and invasive lobular growth pattern. Given that ILC is dependent on constitutive actomyosin contraction for tumor development and progression, we used a combination of cell systems and in vivo experiments to investigate the consequences of α-catenin (CTNNA1) loss in the regulation of anchorage independence of non-invasive breast carcinoma...
May 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29774203/small-rho-gtpases-and-the-effector-vipa-mediate-the-invasion-of-epithelial-cells-by-filamentous-legionella-pneumophila
#15
Akriti Prashar, María Eugenia Ortiz, Stefanie Lucarelli, Elizabeth Barker, Zohreh Tabatabeiyazdi, Feras Shamoun, Deepa Raju, Costin Antonescu, Cyril Guyard, Mauricio R Terebiznik
Legionella pneumophila (Lp) exhibits different morphologies with varying degrees of virulence. Despite their detection in environmental sources of outbreaks and in respiratory tract secretions and lung autopsies from patients, the filamentous morphotype of Lp remains poorly studied. We previously demonstrated that filamentous Lp invades lung epithelial cells (LECs) and replicates intracellularly in a Legionella containing vacuole. Filamentous Lp activates β1integrin and E-cadherin receptors at the surface of LECs leading to the formation of actin-rich cell membrane structures we termed hooks and membrane wraps...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29774151/gastrointestinal-endoscopy-under-sedation-is-associated-with-pneumonia-in-older-inpatients-results-of-a-retrospective-case-control-study
#16
Christopher M Kollmann, Wolff Schmiegel, Thorsten Brechmann
Background and aims: Apparent aspiration is a notable adverse event during gastrointestinal endoscopy under sedation (GIES), but data about inapparent aspiration are scarce. Generally, particularly older patients are at higher risk of suffering from adverse events. Objective: The objective of this article is to determine the risk of pneumonia, lower respiratory tract infection (LRI) and systemic inflammatory activation after GIES, especially in patients of at least 65 years...
April 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29774141/exosome-mediated-peritoneal-dissemination-in-gastric-cancer-and-its-clinical-applications
#17
REVIEW
Kai-Bo Chen, Jian Chen, Xiao-Li Jin, Yi Huang, Qiu-Ming Su, Li Chen
The prognosis of patients with peritoneal dissemination from gastric cancer is poor, and the underlying molecular mechanism remains unclear. Exosomes, as macromolecular phospholipid bilayer vesicles comprising of proteins, nucleic acids and lipids, serve as mediators of cell-cell communication. Gastric cancer tumor-derived exosomes may be involved in the pathological process of peritoneal dissemination by mediating crosstalk between cancer cells and mesothelial cells, to result in the induction of enhanced tumor growth, migratory, adhesive and invasive abilities, peritoneal fibrosis and apoptosis, mesothelial-to-mesenchymal transition, angiogenesis and chemoresistance...
June 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29774130/targeting-invadopodia-mediated-breast-cancer-metastasis-by-using-abl-kinase-inhibitors
#18
Tomer Meirson, Alessandro Genna, Nikola Lukic, Tetiana Makhnii, Joel Alter, Ved P Sharma, Yarong Wang, Abraham O Samson, John S Condeelis, Hava Gil-Henn
Metastatic dissemination of cancer cells from the primary tumor and their spread to distant sites in the body is the leading cause of mortality in breast cancer patients. While researchers have identified treatments that shrink or slow metastatic tumors, no treatment that permanently eradicates metastasis exists at present. Here, we show that the ABL kinase inhibitors imatinib, nilotinib, and GNF-5 impede invadopodium precursor formation and cortactin-phosphorylation dependent invadopodium maturation, leading to decreased actin polymerization in invadopodia, reduced extracellular matrix degradation, and impaired matrix proteolysis-dependent invasion...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774119/periostin-a-signal-transduction-intermediate-in-tgf-%C3%AE-induced-emt-in-u-87mg-human-glioblastoma-cells-and-its-inhibition-by-anthocyanidins
#19
Amira Ouanouki, Sylvie Lamy, Borhane Annabi
Periostin is a secreted protein that is highly expressed in glioblastoma cells as compared to normal brain tissue, and is therefore considered as a potential biomarker in therapeutic modalities. Its contribution in the cancer cells invasive phenotype is, however, poorly understood. This work investigates the role of periostin in U-87 MG glioblastoma cell invasion, cell migration and in Transforming Growth Factor β (TGF-β)-induced epithelial-mesenchymal transition (EMT). Periostin gene silencing, using small interfering RNA, decreased TGF-β-induced mesenchymal marker expression of fibronectin and vimentin, partly through reduced Smad2, Akt and Fak phosphorylation as well as U-87 MG cell invasion and migration...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774109/sik2-attenuates-proliferation-and-survival-of-breast-cancer-cells-with-simultaneous-perturbation-of-mapk-and-pi3k-akt-pathways
#20
Neslihan Zohrap, Özge Saatci, Burcak Ozes, Ipek Coban, Hasan Murat Atay, Esra Battaloglu, Özgür Şahin, Kuyas Bugra
Salt Inducible Kinase2 (SIK2) has been shown to contribute to tumorigenesis in multiple tumor types in a dichotomous manner. However, little is known about its contribution to breast malignancies. Here, we report SIK2 as a potential tumor suppressor in breast cancer whose expression was reduced in tumor tissues and breast cancer cell lines compared to normal counterparts. In vitro loss- and gain-of-function experiments combined with xenograft studies demonstrated that SIK2-mediated attenuation of proliferation and survival of breast cancer cells with parallel inhibition of both Ras/Erk and PI3K/Akt pathways...
April 24, 2018: Oncotarget
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