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https://www.readbyqxmd.com/read/28937653/differential-functional-roles-of-aldh1a1-and-aldh1a3-in-mediating-metastatic-behavior-and-therapy-resistance-of-human-breast-cancer-cells
#1
Alysha K Croker, Mauricio Rodriguez-Torres, Ying Xia, Siddika Pardhan, Hon Sing Leong, John D Lewis, Alison L Allan
Previous studies indicate that breast cancer cells with high aldehyde dehydrogenase (ALDH) activity and CD44 expression (ALDH(hi)CD44⁺) contribute to metastasis and therapy resistance, and that ALDH1 correlates with poor outcome in breast cancer patients. The current study hypothesized that ALDH1 functionally contributes to breast cancer metastatic behavior and therapy resistance. Expression of ALDH1A1 or ALDH1A3 was knocked down in MDA-MB-468 and SUM159 human breast cancer cells using siRNA. Resulting impacts on ALDH activity (Aldefluor(®) assay); metastatic behavior and therapy response in vitro (proliferation/adhesion/migration/colony formation/chemotherapy and radiation) and extravasation/metastasis in vivo (chick choroiallantoic membrane assay) was assessed...
September 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28936769/nlrp3-inflammasome-activation-in-a-transgenic-amyotrophic-lateral-sclerosis-model
#2
Agnese Gugliandolo, Sabrina Giacoppo, Placido Bramanti, Emanuela Mazzon
Amyotrophic lateral sclerosis (ALS) is a disabling progressive disease characterized by the degeneration of motor neurons, leading to muscle atrophy and paralysis. The majority of cases are sporadic, but also a familiar form of ALS exists, and some genes causative of the pathology were found. In particular, mutations in superoxide dismutase 1 (SOD1) were found in 20% of familiar cases. It is known that neuroinflammation plays a pivotal role in several neurodegenerative disorders, including ALS. Inflammasomes are protein complexes that induce inflammation in response to various stimuli, involved also in neuroinflammation...
September 21, 2017: Inflammation
https://www.readbyqxmd.com/read/28935568/genetically-engineered-oncolytic-newcastle-disease-virus-mediates-cytolysis-of-prostate-cancer-stem-like-cells
#3
Raghunath Shobana, Raghavendra Sumanth Pudupakam, Adria Allen, Moanaro Biswas, Nammalwar Sriranganathan
Oncolytic virotherapy is a promising novel approach that overcomes the limitations posed by radiation and chemotherapy. In this study, the oncolytic efficacy of a recombinant Newcastle disease virus (rNDV) BC-KLQL-GFP, against prostate cancer stem-like/tumor initiating cells was evaluated. Xenograft derived prostaspheres (XPS) induced tumor more efficiently than monolayer cell derived prostaspheres (MCPS) in nude mice. Primary and secondary XPS show enhanced self-renewal and clonogenic potential compared to MCPS...
September 18, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28930164/liver-cancer-molecular-characterization-clonal-evolution-and-cancer-stem-cells
#4
REVIEW
Germana Castelli, Elvira Pelosi, Ugo Testa
Liver cancer is the second most common cause of cancer-related death. The major forms of primary liver cancer are hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (iCCA). Both these tumors develop against a background of cirrhotic liver, non-alcoholic fatty liver disease, chronic liver damage and fibrosis. HCC is a heterogeneous disease which usually develops within liver cirrhosis related to various etiologies: hepatitis B virus (HBV) infection (frequent in Asia and Africa), hepatitis C virus (HCV), chronic alcohol abuse, or metabolic syndrome (frequent in Western countries)...
September 20, 2017: Cancers
https://www.readbyqxmd.com/read/28929335/convection-enhanced-delivery-of-sulfasalazine-prolongs-survival-in-a-glioma-stem-cell-brain-tumor-model
#5
Shinya Haryu, Ryuta Saito, Wenting Jia, Takuhiro Shoji, Yui Mano, Aya Sato, Masayuki Kanamori, Yukihiko Sonoda, Oltea Sampetrean, Hideyuki Saya, Teiji Tominaga
Expression of CD44 in glioma cells was previously correlated with tumor grade and is considered a stem cell marker. CD44 stabilizes the cystine-glutamate transporter (xCT) and inhibits apoptosis in cancer stem cells (CSCs). Recently it was found that Sulfasalazine (SSZ), an anti-inflammatory drug, acts as an inhibitor of xCT and therefore has potential as a targeted therapy for CSCs. In this study, we tested an efficacy of SSZ against glioma stem cell model developed in rats. As poor penetration of blood-brain barrier resulted in insufficient efficacy of systemic SSZ treatment, SSZ was delivered locally with convection-enhanced delivery (CED)...
September 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28928832/downregulation-of-rab27a-contributes-to-metformin-induced-suppression-of-breast-cancer-stem-cells
#6
Feixue Feng, Jianping Zhang, Xiaoxuan Fan, Fang Yuan, Yinghao Jiang, Ruihua Lv, Yanxia Ma
Cancer stem cells (CSCs) are associated with tumor initiation, therapeutic resistance, relapse and metastasis. However, the underlying mechanisms CSCs use to preserve stemness are not yet fully understood. The present study demonstrated that the expression of RAB27A, member RAS oncogene family (Rab27a), which was reported to promote tumor progression by upregulating exocytosis of extracellular vesicles, was higher in mammosphere cells than in adherent MDA-MB-231 breast cancer cells. Downregulation of Rab27A inhibited mammosphere formation by decreasing the proportion of CD44+CD24-/low cells of the MDA-MB-231 cell line...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928657/colocynth-extracts-prevent-epithelial-to-mesenchymal-transition-and-stemness-of-breast-cancer-cells
#7
Kaushik Chowdhury, Ankit Sharma, Suresh Kumar, Gyanesh K Gunjan, Alo Nag, Chandi C Mandal
Modern treatment strategies provide better overall survival in cancer patients, primarily by controlling tumor growth. However, off-target and systemic toxicity, tumor recurrence, and resistance to therapy are still inadvertent hurdles in current treatment regimens. Similarly, metastasis is another deadly threat to patients suffering from cancer. This has created an urgent demand to come up with new drugs having anti-metastatic potential and minimum side effects. Thus, this study was aimed at exploring the anti-proliferative and anti-metastatic potential of colocynth medicinal plant...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28927233/fibroblast-growth-factor-2-mediated-fgfr-erk-signaling-supports-maintenance-of-cancer-stem-like-cells-in-esophageal-squamous-cell-carcinoma
#8
Osamu Maehara, Goki Suda, Mitsuteru Natsuizaka, Shunsuke Ohnishi, Yoshito Komatsu, Fumiyuki Sato, Masato Nakai, Takuya Sho, Kenichi Morikawa, Koji Ogawa, Tomoe Shimazaki, Megumi Kimura, Ayaka Asano, Yoshiyuki Fujimoto, Shinya Ohashi, Shingo Kagawa, Hideaki Kinugasa, Seiji Naganuma, Kelly A Whelan, Hiroshi Nakagawa, Koji Nakagawa, Hiroshi Takeda, Naoya Sakamoto
In esophageal squamous cell carcinoma (ESCC), a subset of cells defined by high expression of CD44 and low expression of CD24 has been reported to possess characteristics of cancer stem-like cells (CSCs). Novel therapies directly targeting CSCs have the potential to improve prognosis of ESCC patients. Although fibroblast growth factor-2 (FGF-2) expression correlates with recurrence and poor survival in ESCC patients, the role of FGF-2 in regulation of ESCC CSCs has yet to be elucidated. We report that FGF-2 is significantly upregulated in CSCs and significantly increases CSC content in ESCC cell lines by inducing epithelial-mesenchymal transition (EMT)...
September 13, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28923838/syngeneic-mouse-models-of-oral-cancer-are-effectively-targeted-by-anti-cd44-based-nir-pit
#9
Tadanobu Nagaya, Yuko Nakamura, Shuhei Okuyama, Fusa Ogata, Yasuhiro Maruoka, Peter L Choyke, Clint Alen, Hisataka Kobayashi
Oral cavity squamous cell carcinoma (OSCC) is considered one of the most aggressive subtypes of cancer. Anti-CD44 monoclonal antibodies (mAbs) are a potential therapy against CD44 expressing OSCC, however, to date the therapeutic effects have been disappointing. Here, a new cancer treatment is described, near-infrared photoimmunotherapy (NIR-PIT), that uses anti-CD44 mAbs conjugated to the photoabsorber, IR700DX. This conjugate is injected into mice harboring one of three CD44 expressing syngeneic murine oral cancer cell (MOC) lines, MOC1 (immunogenic), MOC2 mKate2 (moderately immunogenic), and MOC2-luc (poorly immunogenic)...
September 18, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28921810/bones-morphogenic-protein-4-and-retinoic-acid-combined-treatment-comparative-analysis-for-in-vitro-differentiation-potential-of-murine-mesenchymal-stem-cells-derived-from-bone-marrow-and-adipose-tissue-into-germ-cells
#10
Maryam H Shirzeily, Neda Khanlarkhani, Fardin Amidi, Farshad H Shirzeily, Fereydoon S Aval, Aligholi Sobhani
Nowadays, infertility is no longer considered as an unsolvable disorder due to progresses in germ cells derived from stem lineage with diverse origins. Technical and ethical challenges push researchers to investigate various tissue sources to approach more efficient gametes. The purpose of the current study is to investigate the efficacy of a combined medium, retinoic acid (RA) together with Bone Morphogenic Protein-4 (BMP4), on differentiation of Bone Marrow Mesenchymal Stem Cells (BMMSCs) and adipose-derived mesenchymal stem cells (ADMSCs) into germ cells...
September 18, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28920418/myogenic-satellite-cells-differentiation-with-linolenic-and-retinoic-and-thiazolidenediones-from-prepubertal-korean-black-goat
#11
Sugathan Subi, Sungjin Lee, Supriya Shiwani, Naresh Kumar Singh
Objective: Myogenic satellite cells were isolated from semitendinosus muscle of prepubertal Korean black goat to observe the differential effect of linolenic and retinoic acid in thepresence of thiazolidinediones and also to observe the production insulin sensitive preadipocyte. Methods: Cells were characterized for its stemness with CD 34, CD 13, CD 106, CD44, Vimentin surface markers using flow cytometry. Cells characterized themselves to possess significant (p<0...
September 18, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28918603/tumor-markers-of-uterine-cervical-cancer-a-new-scenario-to-guide-surgical-practice
#12
REVIEW
Gaetano Valenti, Salvatore Giovanni Vitale, Alessandro Tropea, Antonio Biondi, Antonio Simone Laganà
Since the introduction of Pap smear screening, the incidence and mortality of cervical cancer (CC) have been reduced drastically in USA and in other western states. Nevertheless, CC still remains the main cause of death from gynecological cancer in developing countries where screening programs are scant or inexistent. This evidence highlights the efficacy of screening, and the wide use of Human Papilloma Viruses (HPV) vaccines in developed countries. More and more people are, consequentially, undergoing a screening procedure, usually combined with HPV DNA test, increasing the early diagnosis of intraepithelial HPV-related lesions...
September 16, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28918037/a-novel-pak1-atf2-mir-132-signaling-axis-is-involved-in-the-hematogenous-metastasis-of-gastric-cancer-cells
#13
Funan Liu, Zhenguo Cheng, Xiaodong Li, Yanshu Li, Hongyan Zhang, Jiabin Li, Furong Liu, Huimian Xu, Feng Li
We, along with others, have shown previously that P21-activated kinase 1 (Pak1) plays a pivotal role in gastric cancer progression and metastasis. However, whether Pak1 controls gastric cancer metastasis by regulating microRNAs (miRNAs) has never been explored. Here, we report a novel mechanism of Pak1 in tumor metastasis. A detailed examination revealed that Pak1 interacts with and phosphorylates the serine 62 residue of ATF2 and then blocks its translocation into the nucleus. We also confirmed that ATF2 binds to the promoter of miR-132 and tightly regulates its transcription, thus explaining the regulatory mechanism of miR-132 by Pak1...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28915803/tartrate-resistant-acid-phosphatase-trap-acp5-promotes-metastasis-related-properties-via-tgf%C3%AE-2-t%C3%AE-r-and-cd44-in-mda-mb-231-breast-cancer-cells
#14
Anja Reithmeier, Elena Panizza, Michael Krumpel, Lukas M Orre, Rui M M Branca, Janne Lehtiö, Barbro Ek-Rylander, Göran Andersson
BACKGROUND: Tartrate-resistant acid phosphatase (TRAP/ACP5), a metalloenzyme that is characteristic for its expression in activated osteoclasts and in macrophages, has recently gained considerable focus as a driver of metastasis and was associated with clinically relevant parameters of cancer progression and cancer aggressiveness. METHODS: MDA-MB-231 breast cancer cells with different TRAP expression levels (overexpression and knockdown) were generated and characterized for protein expression and activity levels...
September 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28914881/microrna-200c-impairs-uterine-receptivity-formation-by-targeting-fut4-and-%C3%AE-1-3-fucosylation
#15
Qin Zheng, Dandan Zhang, Y U Yang, Xinyuan Cui, Jiaqi Sun, Caixia Liang, Huamin Qin, Xuesong Yang, Shuai Liu, Qiu Yan
Successful embryo implantation requires the establishment of a receptive endometrium. Poor endometrial receptivity has generally been considered as a major cause of infertility. Protein glycosylation is associated with many physiological and pathological processes. The fucosylation is catalyzed by the specific fucosyltransferases. Fucosyltransferase IV (FUT4) is the key enzyme for the biosynthesis of α1,3-fucosylated glycans carried by glycoproteins, and the previous studies showed FUT4 expression changed dynamically during perimplantation...
September 15, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28912624/corrigendum-to-expression-and-clinical-significance-of-cancer-stem-cell-markers-cd24-cd44-and-cd133-in-pancreatic-ductal-adenocarcinoma-and-chronic-pancreatitis
#16
L Durko, W Wlodarski, O Stasikowska-Kanicka, M Wagrowska-Danilewicz, M Danilewicz, P Hogendorf, J Strzelczyk, E Malecka-Panas
[This corrects the article DOI: 10.1155/2017/3276806.].
2017: Disease Markers
https://www.readbyqxmd.com/read/28912141/macropinocytosis-of-bevacizumab-by%C3%A2-glioblastoma-cells-in-the-perivascular-niche-affects-their-survival
#17
Gaëlle M Müller-Greven, Cathleen Carlin, Monica E Burgett, Manmeet Singh Ahluwalia, Adam Lauko, Amy S Nowacki, Cameron J Herting, Maha A Qadan, Markus Bredel, Steven A Toms, Justin D Lathia, Dolores Hambardzumyan, Jann N Sarkaria, Petra Hamerlik, Candece L Gladson
PURPOSE: Bevacizumab, a humanized monoclonal antibody to VEGF, is used routinely in the treatment of patients with recurrent glioblastoma (GBM). However, very little is known regarding the effects of bevacizumab on the cells in the perivascular space in tumors. EXPERIMENTAL DESIGN: Established orthotopic xenograft and syngeneic models of GBM were used to determine entry of monoclonal anti-VEGF-A into, and uptake by cells in, the perivascular space. Based on the results, we examined CD133+ cells derived from GBM tumors in vitro...
September 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28910304/comparative-proteomic-investigation-of-metastatic-and-non-metastatic-osteosarcoma-cells-of-human-and-canine-origin
#18
Jahnabi Roy, Kathryn L Wycislo, Holly Pondenis, Timothy M Fan, Aditi Das
Osteosarcoma is the most common bone cancer in dogs and people. In order to improve clinical outcomes, it is necessary to identify proteins that are differentially expressed by metastatic cells. Membrane bound proteins are responsible for multiple pro-metastatic functions. Therefore characterizing the differential expression of membranous proteins between metastatic and non-metastatic clonal variants will allow the discovery of druggable targets and consequently improve treatment methodology. The objective of this investigation was to systemically identify the membrane-associated proteomics of metastatic and non-metastatic variants of human and canine origin...
2017: PloS One
https://www.readbyqxmd.com/read/28904691/il-21-augments-rapamycin-in-expansion-of-alpha-fetoprotein-antigen-specific-stem-cell-like-memory-t-cells-in-vitro
#19
Victor Tunje Jeza, Xiaoyi Li, Jun Chen, Zhihui Liang, Adem Onago Aggrey, Xiongwen Wu
INTRODUCTION: Alloreactive tumor specific T cells are important arsenals of the adaptive immune system in the fight against tumors. However, stem cell-like memory T cells (Tscm) provide the key to effective elimination of tumor cells. Methods for generating these T cell subsets already exist. However, they could be made more efficient. Further, they are expensive and unattainable to the resource poor laboratories. In this regard, we are hereby describing a novel in vitro allogeneic co-culture method for raising allo-restricted tumor specific Tscm cells that we developed...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28903181/development-and-characterization-of-hyaluronic-acid-modified-plga-based-nanoparticles-for-improved-efficacy-of-cisplatin-in-solid-tumor
#20
Noor Alam, Mytre Koul, Mubashir J Mintoo, Vaibhav Khare, Rahul Gupta, Neha Rawat, Parduman Raj Sharma, Shashank K Singh, Dilip M Mondhe, Prem N Gupta
Cisplatin is a potent and widely used chemotherapeutic agent to treat a variety of tumors. However, its clinical use is associated with undesirable side effects and acquired resistance to cisplatin. In this study, cisplatin loaded hyaluronic acid (HA) functionalized poly (lactic-co-glycolic acid)-poly (ethylene glycol) nanoparticles (CP-HA-PLGA-PEG-NPs) were fabricated using double emulsion solvent evaporation method to target CD44 receptor expressed on cancerous cells. The developed nanoconstructs were characterized for various in vitro parameters, including size distribution, zeta potential, morphology, drug loading and in vitro release...
September 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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