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https://www.readbyqxmd.com/read/29350904/nanoplatform-assembled-from-a-cd44-targeted-prodrug-and-smart-liposomes-for-dual-targeting-of-tumor-microenvironment-and-cancer-cells
#1
Yaqi Lv, Chaoran Xu, Xiangmei Zhao, Chenshi Lin, Xin Yang, Xiaofei Xin, Li Zhang, Chao Qin, Xiaopeng Han, Lei Yang, Wei He, Lifang Yin
The tumor microenvironment (TME) plays a critical role in tumor initiation, progression, invasion and metastasis. Therefore, a therapy that combines chemotherapeutic drugs with a TME modulator could be a promising route for cancer treatment. This paper reports a nanoplatform self-assembled from a hyaluronic acid (HA)-paclitaxel (PTX) (HA-PTX) prodrug and marimastat (MATT)-loaded thermosensitive liposomes (LTSLs) (MATT-LTSLs) for the dual targeting of the TME and cancer cells. Interestingly, the prodrug HA-PTX can self-assemble on both positively and negatively charged liposomes, forming hybrid nanoparticles (HNPs, 100 nm)...
January 19, 2018: ACS Nano
https://www.readbyqxmd.com/read/29350308/the-ppar%C3%AE-agonist-efatutazone-delays-invasive-progression-and-induces-differentiation-of-ductal-carcinoma-in-situ
#2
Virginie Ory, William B Kietzman, Jacob Boeckelman, Bhaskar V Kallakury, Anton Wellstein, Priscilla A Furth, Anna T Riegel
PURPOSE: Ductal carcinoma in situ (DCIS) is a pre-invasive lesion of the breast considered a precursor of invasive ductal carcinoma. This study aimed to determine whether activated PPARγ acts as a tumor suppressor in human DCIS progression. METHODS: We utilized the high-affinity PPARγ agonist, efatutazone, to activate endogenous PPARγ in a well-defined model for the progression of basal (triple negative) DCIS, MCFDCIS cells, cultured under 2D and 3D conditions...
January 19, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29350064/comparison-of-hyaluronic-acid-based-micelles-and-polyethylene-glycol-based-micelles-on-reversal-of-multidrug-resistance-and-enhanced-anticancer-efficacy-in-vitro-and-in-vivo
#3
Jinling Wang, Ying Li, Lifang Wang, Xiaohui Wang, Pengfei Tu
Polyethylene glycol (PEG)-based block copolymer micelles and hyaluronic acid (HA)-based grafted copolymer micelles have been widely investigated in chemotherapy. In this study, to evaluate the differences among HA-based grafted polymer micelles, PEG-based block polymer micelles and the mixed of these two micelles in enhancing antitumor effects and overcoming MDR, two amphiphilic vitamin E succinate (VES) derivatives, HA VES (HA-g-VES) and PEG 2000 VES (TPGS2k), were applied as nanocarriers to prepare HA-VES micelles (HA-PMs), TPGS2k micelles (TPGS2k-PMs) and the mixed micelles (HA/TPGS2k-PMs) for the co-delivery of doxorubicin (DOX) and curcumin (Cur)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29348846/st6galnac1-plays-important-roles-in-enhancing-cancer-stem-phenotypes-of-colorectal-cancer-via-the-akt-pathway
#4
Tadashi Ogawa, Yoshihiko Hirohashi, Aiko Murai, Toshihiko Nishidate, Kenji Okita, Liming Wang, Yuzuru Ikehara, Tetsuta Satoyoshi, Akihiro Usui, Terufumi Kubo, Munehide Nakastugawa, Takayuki Kanaseki, Tomohide Tsukahara, Goro Kutomi, Tomohisa Furuhata, Koichi Hirata, Noriyuki Sato, Toru Mizuguchi, Ichiro Takemasa, Toshihiko Torigoe
Colorectal cancer (CRC) is a mortal disease due to treatment resistance, recurrence and distant metastasis. Emerging evidence has revealed that a small sub-population of cancer cells termed cancer stem cells (CSCs)/ cancer-initiating cells (CICs) is endowed with high levels of tumor-initiating ability, self-renewal ability and differentiation ability and is responsible for treatment resistance, recurrence and distant metastasis. Eradication of CSCs/CICs is essential to improve current treatments. However, the molecular mechanisms by which CSCs/CICs are maintained are still elusive...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348563/disruption-of-cxcr3-function-impedes-the-development-of-sj%C3%A3-gren-s-syndrome-like-xerostomia-in-non-obese-diabetic-mice
#5
Jing Zhou, Qing Yu
The chemokine receptor CXCR3 plays an important role in T cell recruitment in various immune responses and autoimmune diseases. Expression of CXCR3 ligands, including CXCL9, CXCL10, and CXCL11, is elevated in the salivary glands of patients with Sjögren's syndrome (SS). To elucidate whether interaction between CXCR3 and its ligands is required for the development of SS, we administrated an anti-CXCR3 blocking antibody (CXCR3-173) to the non-obese diabetic (NOD) mice, a well-defined model of SS, during the stage prior to disease onset...
January 18, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29344258/involvement-of-breast-cancer-stem-cells-in-tumor-angiogenesis
#6
Yu Wang, Chen Li, Yuqiang Li, Zhitu Zhu
The aim of the present study was to investigate the role of breast cancer stem cells (BCSCs) in the angiogenesis of breast cancer tumors. The expression levels of mutant p53, cluster of differentiation (CD)31, vascular endothelial factor (VEGF), in addition to human epidermal growth factor (HER)2, were detected in the blood vessels of human breast cancer (BC) tissue samples. CD44+/CD24-/low cells were selected from single-cell suspensions of BC tissues to assess the expression of CD31 and CD105, in addition to the ability of these cells to metabolize acetylated low-density lipoprotein (Ac-LDL)...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344144/melanoma-differentiation-associated-gene-7-suppresses-human-gastric-cancer-cell-invasion-and-migration
#7
Li Xu, Jinyan Chen, Wei Lin, Jinkun Chen, Zhiwei Chen
Gastric cancer is one of the most common types of cancer in the world. Patients with gastric cancer often respond poorly to conventional chemotherapies, therefore more comprehensive therapy is required. Melanoma differentiation-associated gene-7 (MDA-7), also termed interleukin-24, is a potent tumor suppressor gene. Numerous studies have demonstrated that MDA-7 suppresses the growth and induces the apoptosis of cancer cells. In the present study, the MDA-7 gene was transfected into human gastric cancer AGS cells using adenovirus...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344142/isolation-and-identification-of-tumor-initiating-cell-properties-in-human-gallbladder-cancer-cell-lines-using-the-marker-cluster-of-differentiation-133
#8
Jiwei Yu, Zhaohui Tang, Wei Gong, Mingdi Zhang, Zhiwei Quan
The present study aimed to isolate and identify the properties of the cluster of differentiation (CD)133+ subset in human gallbladder cancer cells. The CD133+ and CD133- subpopulations of the GBC-SD cell line were separated using immunomagnetic separation, and the biological features of the two subpopulations were analyzed in vitro and in vivo. In particular, the present study aimed to determine whether the two subpopulations were resistant to anti-tumor reagents and to identify the underlying molecular mechanisms involved...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343849/mutant-p53-gain-of-function-underlies-high-expression-levels-of-colorectal-cancer-stem-cells-markers
#9
Hilla Solomon, Nathan Dinowitz, Ioannis S Pateras, Tomer Cooks, Yoav Shetzer, Alina Molchadsky, Meital Charni, Stav Rabani, Gabriela Koifman, Ohad Tarcic, Ziv Porat, Ira Kogan-Sakin, Naomi Goldfinger, Moshe Oren, Curtis C Harris, Vassilis G Gorgoulis, Varda Rotter
Emerging notion in carcinogenesis ascribes tumor initiation and aggressiveness to cancer stem cells (CSCs). Specifically, colorectal cancer (CRC) development was shown to be compatible with CSCs hypothesis. Mutations in p53 are highly frequent in CRC, and are known to facilitate tumor development and aggressiveness. Yet, the link between mutant p53 and colorectal CSCs is not well-established. In the present study, we set to examine whether oncogenic mutant p53 proteins may augment colorectal CSCs phenotype...
January 18, 2018: Oncogene
https://www.readbyqxmd.com/read/29343270/isolation-and-characterization-of-olfactory-ecto-mesenchymal-stem-cells-from-eight-mammalian-genera
#10
Antoine D Veron, Cécile Bienboire-Frosini, François Feron, Elisa Codecasa, Arnaud Deveze, Dany Royer, Paul Watelet, Pietro Asproni, Kevin Sadelli, Camille Chabaud, Jean-Claude Stamegna, Joël Fagot, Michel Khrestchatisky, Alessandro Cozzi, François S Roman, Patrick Pageat, Manuel Mengoli, Stéphane D Girard
BACKGROUND: Stem cell-based therapies are an attractive option to promote regeneration and repair defective tissues and organs. Thanks to their multipotency, high proliferation rate and the lack of major ethical limitations, "olfactory ecto-mesenchymal stem cells" (OE-MSCs) have been described as a promising candidate to treat a variety of damaged tissues. Easily accessible in the nasal cavity of most mammals, these cells are highly suitable for autologous cell-based therapies and do not face issues associated with other stem cells...
January 17, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29341428/epigenetic-silencing-of-tap1-in-aldefluor-breast-cancer-stem-cells-contributes-to-their-enhanced-immune-evasion
#11
Mohammad Sultan, Dejan Vidovic, Arianne S Paine, Thomas T Huynh, Krysta M Coyle, Margaret L Thomas, Brianne M Cruickshank, Cheryl A Dean, Derek R Clements, Youra Kim, Kristin Lee, Shashi A Gujar, Ian C Weaver, Paola Marcato
Avoiding detection and destruction by immune cells is key for tumor initiation and progression. The important role of cancer stem cells (CSC) in tumor initiation has been well established, yet their ability to evade immune detection and targeting is only partly understood. To investigate the ability of breast CSCs to evade immune detection we identified a highly tumorigenic population in a spontaneous murine mammary tumor based on increased aldehyde dehydrogenase (ALDH) activity. We performed tumor growth studies in immunocompetent and immunocompromised mice...
January 17, 2018: Stem Cells
https://www.readbyqxmd.com/read/29340063/a-molecular-signature-of-dormancy-in-cd34-cd38-acute-myeloid-leukaemia-cells
#12
Mazin Gh Al-Asadi, Grace Brindle, Marcos Castellanos, Sean T May, Ken I Mills, Nigel H Russell, Claire H Seedhouse, Monica Pallis
Dormant leukaemia initiating cells in the bone marrow niche are a crucial therapeutic target for total eradication of acute myeloid leukaemia. To study this cellular subset we created and validated an in vitro model employing the cell line TF-1a, treated with Transforming Growth Factor β1 (TGFβ1) and a mammalian target of rapamycin inhibitor. The treated cells showed decreases in total RNA, Ki-67 and CD71, increased aldehyde dehydrogenase activity, forkhead box 03A (FOX03A) nuclear translocation and growth inhibition, with no evidence of apoptosis or differentiation...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339728/how-bmp-2-induces-emt-and-breast-cancer-stemness-through-rb-and-cd44
#13
Guanglin Zhang, Peide Huang, Anan Chen, Weiyi He, Zhen Li, Ge Liu, Ju Wang
No abstract text is available yet for this article.
January 16, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29338788/high-throughput-immunophenotypic-characterization-of-bone-marrow-and-cord-blood-derived-mesenchymal-stromal-cells-reveals-common-and-differentially-expressed-markers-identification-of-angiotensin-converting-enzyme-cd143-as-a-marker-differentially-expressed
#14
Eliana Amati, Omar Perbellini, Gianluca Rotta, Martina Bernardi, Katia Chieregato, Sabrina Sella, Francesco Rodeghiero, Marco Ruggeri, Giuseppe Astori
BACKGROUND: Mesenchymal stromal cells (MSC) are a heterogeneous population of multipotent progenitors used in the clinic because of their immunomodulatory properties and their ability to differentiate into multiple mesodermal lineages. Although bone marrow (BM) remains the most common MSC source, cord blood (CB) can be collected noninvasively and without major ethical concerns. Comparative studies comprehensively characterizing the MSC phenotype across several tissue sources are still lacking...
January 16, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29336140/synthesis-of-cisplatin-iv-prodrug-tethered-cufes2-nanoparticles-in-tumor-targeted-chemotherapy-and-photothermal-therapy
#15
Wubshet Mekonnen Girma, Shin-Hwa Tzing, Po-Jen Tseng, Chih-Ching Huang, Yong-Chien Ling, Jia-Yaw Chang
In this study, for the first time, CuFeS2 nanocrystals were successfully prepared through a facile noninjection-based synthetic strategy, by reacting Cu and Fe precursors with dodecanethiol in a 1-octadecene solvent. This one-pot noninjection strategy features easy handling, large-scale production, and high synthetic reproducibility. Following hyaluronic acid (HA) encapsulation, CuFeS2 nanocrystals coated with HA (CuFeS2@HA) not only readily dispersed in water and showed improved biocompatibility, but also possessed a tumor-specific targeting ability of cancer cells bearing the cluster determinant 44 (CD44) receptors...
January 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29333091/in-vitro-and-in-vivo-effects-of-mirna-19b-20a-92a-on-gastric-cancer-stem-cells-and-the-related-mechanism
#16
Qianwen Shao, Jing Xu, Xin Guan, Bing Zhou, Wei Wei, Rong Deng, Dongzhen Li, Xinyu Xu, Haitao Zhu
We aimed to analyze the in vitro and in vivo effects of miRNA-19b/20a/92a on gastric cancer stem cells (GCSCs) and the related mechanism. GCSCs were cultured until adherence and differentiation, and subjected to miRNA microarray analysis to find and to verify miRNA deletion. Cells stably expressing lentivirus carrying miRNA-19b/20a/92a were constructed by transfection. The relationship between miRNA-19b/20a/92a and renewal of GCSCs was studied by the tumor sphere assay, and that between miRNA-19b/20a/92a and their proliferation was explored with MTT and colony formation assays...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29328918/transmembrane-pickets-connect-cyto-and-pericellular-skeletons-forming-barriers-to-receptor-engagement
#17
Spencer A Freeman, Anthony Vega, Magdalena Riedl, Richard F Collins, Phillip P Ostrowski, Elliot C Woods, Carolyn R Bertozzi, Markku I Tammi, Diane S Lidke, Pauline Johnson, Satyajit Mayor, Khuloud Jaqaman, Sergio Grinstein
Phagocytic receptors must diffuse laterally to become activated upon clustering by multivalent targets. Receptor diffusion, however, can be obstructed by transmembrane proteins ("pickets") that are immobilized by interacting with the cortical cytoskeleton. The molecular identity of these pickets and their role in phagocytosis have not been defined. We used single-molecule tracking to study the interaction between Fcγ receptors and CD44, an abundant transmembrane protein capable of indirect association with F-actin, hence likely to serve as a picket...
January 11, 2018: Cell
https://www.readbyqxmd.com/read/29328479/the-human-umbilical-cord-stem-cells-improve-the-viability-of-oa-degenerated-chondrocytes
#18
Hao Wang, Xu Yan, Yuxin Jiang, Zheng Wang, Yufei Li, Qingdong Shao
Osteoarthritis (OA) affects a large number of patients; however, human umbilical cord stem cells exhibit therapeutic potential for treating OA. The aim of the present study was to explore the interaction between human umbilical cord stem cells and degenerated chondrocytes, and the therapeutic potential of human umbilical cord stem cells on degenerated chondrocytes. Human umbilical cord‑derived mesenchymal stem cells (hUC‑MSCs) were harvested from human umbilical cords, and flow cytometry was used to analyze the surface antigen markers, in addition, chondrogenic, osteogenic and adipogenic differentiation on the cells was investigated...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328428/regulation-of-drug-resistance-and-metastasis-of-gastric-cancer-cells-via-the-microrna647-ank2-axis
#19
Wenlong Cao, Weiyuan Wei, Zexu Zhan, Dongyi Xie, Yubo Xie, Qiang Xiao
Due to a lack of effective methods for early diagnosis, the majority of patients with gastric cancer (GC) are diagnosed during the late stages of the disease, which are often accompanied by metastasis. For these patients, despite being considered an important therapeutic modality in the treatment of cancer, chemotherapy is usually not effective due to multidrug resistance (MDR). The expression levels of MDR/metastasis‑associated genes are regulated by numerous microRNAs (miRNAs/miRs). The expression of miR-647 in GC tissues and SGC7901/VCR cell line (drug resistance to vincristine) was detected by qRT-PCR...
January 11, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327714/a-comprehensive-flow-cytometry-based-immunophenotypic-characterization-of-burkitt-like-lymphoma-with-11q-aberration
#20
Grzegorz Rymkiewicz, Beata Grygalewicz, Magdalena Chechlinska, Katarzyna Blachnio, Zbigniew Bystydzienski, Joanna Romejko-Jarosinska, Renata Woroniecka, Michalina Zajdel, Katarzyna Domanska-Czyz, David Martin-Garcia, Ferran Nadeu, Pawel Swoboda, Jolanta Rygier, Barbara Pienkowska-Grela, Jan Konrad Siwicki, Monika Prochorec-Sobieszek, Itziar Salaverria, Reiner Siebert, Jan Walewski
We previously described a subset of MYC translocation-negative aggressive B-cell lymphomas resembling Burkitt lymphoma, characterized by proximal gains and distal losses in chromosome 11. In the 2016 WHO classification, these MYC-negative lymphomas were recognized as a new provisional entity, 'Burkitt-like lymphoma with 11q aberration'. Here we present an immunophenotype analysis of Burkitt-like lymphomas with 11q aberration. Cells were acquired by fine needle aspiration biopsy from 10 young adult patients, 80% of whom presented recurrence-free 5-year survival...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
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