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https://www.readbyqxmd.com/read/28273453/cd95-fas-increases-stemness-in-cancer-cells-by-inducing-a-stat1-dependent-type-i-interferon-response
#1
Abdul S Qadir, Paolo Ceppi, Sonia Brockway, Calvin Law, Liang Mu, Nikolai N Khodarev, Jung Kim, Jonathan C Zhao, William Putzbach, Andrea E Murmann, Zhuo Chen, Wenjing Chen, Xia Liu, Arthur R Salomon, Huiping Liu, Ralph R Weichselbaum, Jindan Yu, Marcus E Peter
Stimulation of CD95/Fas drives and maintains cancer stem cells (CSCs). We now report that this involves activation of signal transducer and activator of transcription 1 (STAT1) and induction of STAT1-regulated genes and that this process is inhibited by active caspases. STAT1 is enriched in CSCs in cancer cell lines, patient-derived human breast cancer, and CD95(high)-expressing glioblastoma neurospheres. CD95 stimulation of cancer cells induced secretion of type I interferons (IFNs) that bind to type I IFN receptors, resulting in activation of Janus-activated kinases, activation of STAT1, and induction of a number of STAT1-regulated genes that are part of a gene signature recently linked to therapy resistance in five primary human cancers...
March 7, 2017: Cell Reports
https://www.readbyqxmd.com/read/28247046/control-of-germline-stem-cell-lineages-by-diet-and-physiology
#2
Kaitlin M Laws, Daniela Drummond-Barbosa
Tight coupling of reproduction to environmental factors and physiological status is key to long-term species survival. In particular, highly conserved pathways modulate germline stem cell lineages according to nutrient availability. This chapter focuses on recent in vivo studies in genetic model organisms that shed light on how diet-dependent signals control the proliferation, maintenance, and survival of adult germline stem cells and their progeny. These signaling pathways can operate intrinsically in the germ line, modulate the niche, or act through intermediate organs to influence stem cells and their differentiating progeny...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28241208/association-between-telomere-length-and-risk-of-cancer-and-non-neoplastic-diseases-a-mendelian-randomization-study
#3
Philip C Haycock, Stephen Burgess, Aayah Nounu, Jie Zheng, George N Okoli, Jack Bowden, Kaitlin Hazel Wade, Nicholas J Timpson, David M Evans, Peter Willeit, Abraham Aviv, Tom R Gaunt, Gibran Hemani, Massimo Mangino, Hayley Patricia Ellis, Kathreena M Kurian, Karen A Pooley, Rosalind A Eeles, Jeffrey E Lee, Shenying Fang, Wei V Chen, Matthew H Law, Lisa M Bowdler, Mark M Iles, Qiong Yang, Bradford B Worrall, Hugh Stephen Markus, Rayjean J Hung, Chris I Amos, Amanda B Spurdle, Deborah J Thompson, Tracy A O'Mara, Brian Wolpin, Laufey Amundadottir, Rachael Stolzenberg-Solomon, Antonia Trichopoulou, N Charlotte Onland-Moret, Eiliv Lund, Eric J Duell, Federico Canzian, Gianluca Severi, Kim Overvad, Marc J Gunter, Rosario Tumino, Ulrika Svenson, Andre van Rij, Annette F Baas, Matthew J Bown, Nilesh J Samani, Femke N G van t'Hof, Gerard Tromp, Gregory T Jones, Helena Kuivaniemi, James R Elmore, Mattias Johansson, James Mckay, Ghislaine Scelo, Robert Carreras-Torres, Valerie Gaborieau, Paul Brennan, Paige M Bracci, Rachel E Neale, Sara H Olson, Steven Gallinger, Donghui Li, Gloria M Petersen, Harvey A Risch, Alison P Klein, Jiali Han, Christian C Abnet, Neal D Freedman, Philip R Taylor, John M Maris, Katja K Aben, Lambertus A Kiemeney, Sita H Vermeulen, John K Wiencke, Kyle M Walsh, Margaret Wrensch, Terri Rice, Clare Turnbull, Kevin Litchfield, Lavinia Paternoster, Marie Standl, Gonçalo R Abecasis, John Paul SanGiovanni, Yong Li, Vladan Mijatovic, Yadav Sapkota, Siew-Kee Low, Krina T Zondervan, Grant W Montgomery, Dale R Nyholt, David A van Heel, Karen Hunt, Dan E Arking, Foram N Ashar, Nona Sotoodehnia, Daniel Woo, Jonathan Rosand, Mary E Comeau, W Mark Brown, Edwin K Silverman, John E Hokanson, Michael H Cho, Jennie Hui, Manuel A Ferreira, Philip J Thompson, Alanna C Morrison, Janine F Felix, Nicholas L Smith, Angela M Christiano, Lynn Petukhova, Regina C Betz, Xing Fan, Xuejun Zhang, Caihong Zhu, Carl D Langefeld, Susan D Thompson, Feijie Wang, Xu Lin, David A Schwartz, Tasha Fingerlin, Jerome I Rotter, Mary Frances Cotch, Richard A Jensen, Matthias Munz, Henrik Dommisch, Arne S Schaefer, Fang Han, Hanna M Ollila, Ryan P Hillary, Omar Albagha, Stuart H Ralston, Chenjie Zeng, Wei Zheng, Xiao-Ou Shu, Andre Reis, Steffen Uebe, Ulrike Hüffmeier, Yoshiya Kawamura, Takeshi Otowa, Tsukasa Sasaki, Martin Lloyd Hibberd, Sonia Davila, Gang Xie, Katherine Siminovitch, Jin-Xin Bei, Yi-Xin Zeng, Asta Försti, Bowang Chen, Stefano Landi, Andre Franke, Annegret Fischer, David Ellinghaus, Carlos Flores, Imre Noth, Shwu-Fan Ma, Jia Nee Foo, Jianjun Liu, Jong-Won Kim, David G Cox, Olivier Delattre, Olivier Mirabeau, Christine F Skibola, Clara S Tang, Merce Garcia-Barcelo, Kai-Ping Chang, Wen-Hui Su, Yu-Sun Chang, Nicholas G Martin, Scott Gordon, Tracey D Wade, Chaeyoung Lee, Michiaki Kubo, Pei-Chieng Cha, Yusuke Nakamura, Daniel Levy, Masayuki Kimura, Shih-Jen Hwang, Steven Hunt, Tim Spector, Nicole Soranzo, Ani W Manichaikul, R Graham Barr, Bratati Kahali, Elizabeth Speliotes, Laura M Yerges-Armstrong, Ching-Yu Cheng, Jost B Jonas, Tien Yin Wong, Isabella Fogh, Kuang Lin, John F Powell, Kenneth Rice, Caroline L Relton, Richard M Martin, George Davey Smith
Importance: The causal direction and magnitude of the association between telomere length and incidence of cancer and non-neoplastic diseases is uncertain owing to the susceptibility of observational studies to confounding and reverse causation. Objective: To conduct a Mendelian randomization study, using germline genetic variants as instrumental variables, to appraise the causal relevance of telomere length for risk of cancer and non-neoplastic diseases. Data Sources: Genomewide association studies (GWAS) published up to January 15, 2015...
February 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28196146/chemotherapy-induces-adaptive-drug-resistance-and-metastatic-potentials-via-phenotypic-cxcr4-expressing-cell-state-transition-in-ovarian-cancer
#4
Hyun Hee Lee, Vanessa Bellat, Benedict Law
Ovarian cancer (OVC) patients who receive chemotherapy often acquire drug resistance within one year. This can lead to tumor reoccurrence and metastasis, the major causes of mortality. We report a transient increase of a small distinctive CXCR4High/CD24Low cancer stem cell population (CXCR4High) in A2780 and SKOV-3 OVC cell lines in response to cisplatin, doxorubicin, and paclitaxel, treatments. The withdrawal of the drug challenges reversed this cell-state transition. CXCR4High exhibits dormancy in drug resistance and mesenchymal-like invasion, migration, colonization, and tumor formation properties...
2017: PloS One
https://www.readbyqxmd.com/read/28192422/identification-of-quiescent-and-spatially-restricted-mammary-stem-cells-that-are-hormone-responsive
#5
Nai Yang Fu, Anne C Rios, Bhupinder Pal, Charity W Law, Paul Jamieson, Ruijie Liu, François Vaillant, Felicity Jackling, Kevin He Liu, Gordon K Smyth, Geoffrey J Lindeman, Matthew E Ritchie, Jane E Visvader
Despite accumulating evidence for a mammary differentiation hierarchy, the basal compartment comprising stem cells remains poorly characterized. Through gene expression profiling of Lgr5(+) basal epithelial cells, we identify a new marker, Tetraspanin8 (Tspan8). Fractionation based on Tspan8 and Lgr5 expression uncovered three distinct mammary stem cell (MaSC) subsets in the adult mammary gland. These exist in a largely quiescent state but differ in their reconstituting ability, spatial localization, and their molecular and epigenetic signatures...
February 13, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28108933/modelling-genome-wide-topological-associating-domains-in-mouse-embryonic-stem-cells
#6
Y Zhan, L Giorgetti, G Tiana
Chromosome conformation capture (3C)-based techniques such as chromosome conformation capture carbon copy (5C) and Hi-C revealed that the folding of mammalian chromosomes is highly hierarchical. A fundamental structural unit in the hierarchy is represented by topologically associating domains (TADs), sub-megabase regions of the genome within which the chromatin fibre preferentially interacts. 3C-based methods provide the mean contact probabilities between chromosomal loci, averaged over a large number of cells, and do not give immediate access to the single-cell conformations of the chromatin fibre...
January 20, 2017: Chromosome Research
https://www.readbyqxmd.com/read/28094826/response-to-dittrich-et-al-non-embryo-destructive-extraction-of-pluripotent-embryonic-stem-cells-overlooked-legal-prohibitions-professional-legal-consequences-and-inconsistencies-in-patent-law
#7
REVIEW
T Faltus, U Storz
The publication of "Non-embryo-destructive Extraction of Pluripotent Embryonic Stem Cells: Implications for Regenerative Medicine and Reproductive Medicine" by Dittrich et al. in Geburtshilfe und Frauenheilkunde 2015; 75: 1239-1242 1 describes various possibilities which could result from the non-embryo-destructive extraction of embryonic stem cells from human blastocysts. But implementing this method is more problematic, both legally and ethically, than the authors have represented it to be and is illegal in Germany...
December 2016: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28042168/reply-to-response-to-dittrich-et-al-non-embryo-destructive-extraction-of-pluripotent-embryonic-stem-cells-overlooked-legal-prohibitions-professional-legal-consequences-and-inconsistencies-in-patent-law
#8
https://www.readbyqxmd.com/read/27976982/patent-eligibility-of-stem-cells-in-europe-where-do-we-stand-after-8-years-of-case-law
#9
Ulrich Storz, Timo Faltus
Since 2006, some of the highest ranking European Courts have issued decisions related to the patent eligibility of human embryonic stem cells. The question of patent eligibility of human embryonic stem cells remains, however, still erratic, at least in some aspects. This article will give a short comprehensive overview of the case history, and discuss questions still unsolved.
January 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/27933781/structure-and-function-of-the-hepatitis-c-virus-envelope-glycoproteins-e1-and-e2-antiviral-and-vaccine-targets
#10
Holly Freedman, Michael R Logan, John Lok Man Law, Michael Houghton
The hepatitis C virus (HCV) envelope glycoproteins E1 and E2 are critical in viral attachment and cell fusion, and studies of these proteins may provide valuable insights into their potential uses in vaccines and antiviral strategies. Progress has included elucidating the crystal structures of portions of their ectodomains, as well as many other studies of hypervariable regions, stem regions, glycosylation sites, and the participation of E1/E2 in viral fusion with the endosomal membrane. The available structural data have shed light on the binding sites of cross-neutralizing antibodies...
November 11, 2016: ACS Infectious Diseases
https://www.readbyqxmd.com/read/27855949/-general-and-ethical-considerations-for-the-informed-consent-process-guidelines-from-the-francophone-society-of-bone-marrow-transplantation-and-cellular-therapy-sfgm-tc
#11
Jean-Baptiste Thibert, Alice Polomeni, Ibrahim Yakoub-Agha, Dominique Bordessoule
Informed consent is not restricted to clinical research and must be applied to high-risk care such as hematopoietic stem cell transplantation. If standardized informed consent might improve inequalities in medical practices between different transplantation centers, it is strongly recommended that it be adapted with an honest dialogue between physicians and patients and physicians and donors. In an attempt to harmonize clinical practices among French hematopoietic stem cell transplantation centers, the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC) held its sixth annual workshop series in September 2015 in Lille...
November 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27842861/-information-and-consent-forms-for-hematopoietic-stem-cell-transplantation-donors-and-recipients-guidelines-from-the-franchophone-society-of-bone-marrow-transplantation-and-cellular-therapy-sfgm-tc
#12
Bénédicte Bruno, Jean-Baptiste Thibert, Nelly Bancillon, Anna Desbos, Abir Fawaz, Isabelle Fournier, Carole Genty, Dominique Issarni, Sandrine Leveille, Christelle Premel, Alice Polomeni, Myriam Renault, Sylvie Tarillon, Anne Wallart, Ibrahim Yakoub-Agha, Dominique Bordessoule
Within the context of the SFGM-TC's 6th workshop series on the harmonization of clinical practices, our workshop proposes a standardization of the informed consent process for hematopoietic stem cell donors and recipients leading up to an autologous or allogenic transplantation. All informed consent was for bone marrow or peripheral stem cell donors, and mononuclear/lymphocyte donors according to usual procedures. The informed consent for autologous and allogenic related or unrelated adults and pediatric transplantation patients have been included...
November 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/27824280/the-combined-effect-of-substrate-stiffness-and-surface-topography-on-chondrogenic-differentiation-of-mesenchymal-stem-cells
#13
Yingnan Wu, Zheng Yang, Jaslyn Bee Khuan Law, Ai Yu He, Azlina A Abbas, Vinitha Denslin, Tunku Kamarul, James H P Hui, Eng Hin Lee
Stem cell differentiation is guided by contact with the physical microenvironment, influence by both topography and mechanical properties of the matrix. In this study, the combined effect of substratum nano-topography and mechanical stiffness in directing mesenchymal stem cell (MSC) chondrogenesis was investigated. Three polyesters of varying stiffness were thermally imprinted to create nano-grating or pillar patterns of the same dimension. The surface of the nano-patterned substrate was coated with chondroitin sulfate (CS) to provide an even surface chemistry, with cell-adhesive and chondro-inductive properties, across all polymeric substrates...
January 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/27729213/amp-activated-protein-kinase-has-diet-dependent-and-independent-roles-in-drosophila-oogenesis
#14
Kaitlin M Laws, Daniela Drummond-Barbosa
Multiple aspects of organismal physiology influence the number and activity of stem cells and their progeny, including nutritional status. Previous studies demonstrated that Drosophila germline stem cells (GSCs), follicle stem cells (FSCs), and their progeny sense and respond to diet via complex mechanisms involving many systemic and local signals. AMP-activated protein kinase, or AMPK, is a highly conserved regulator of energy homeostasis known to be activated under low cellular energy conditions; however, its role in the ovarian response to diet has not been investigated...
December 1, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27705770/a-tensegrity-model-of-cell-reorientation-on-cyclically-stretched-substrates
#15
Guang-Kui Xu, Bo Li, Xi-Qiao Feng, Huajian Gao
Deciphering the mechanisms underlying the high sensitivity of cells to mechanical microenvironments is crucial for understanding many physiological and pathological processes, e.g., stem cell differentiation and cancer cell metastasis. Here, a cytoskeletal tensegrity model is proposed to study the reorientation of polarized cells on a substrate under biaxial cyclic deformation. The model consists of four bars, representing the longitudinal stress fibers and lateral actin network, and eight strings, denoting the microfilaments...
October 4, 2016: Biophysical Journal
https://www.readbyqxmd.com/read/27632389/deregulation-of-vital-mitotic-kinase-phosphatase-signaling-in-hematopoietic-stem-progenitor-compartment-leads-to-cellular-catastrophe-in-experimental-aplastic-anemia
#16
Ritam Chatterjee, Sukalpa Chattopadhyay, Sujata Law
Aplastic anemia, the paradigm of bone marrow failure, is characterized by pancytopenic peripheral blood and hypoplastic bone marrow. Among various etiologies, inappropriate use of DNA alkylating drugs like cyclophosphamide and busulfan often causes the manifestation of the dreadful disease. Cell cycle impairment in marrow hematopoietic stem/progenitor compartment together with cellular apoptosis has been recognized as culpable factors behind aplastic pathophysiologies. However, the intricate molecular mechanisms remain unrevealed till date...
November 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27605883/prevention-and-management-of-hepatitis-b-virus-reactivation-in-patients-with-hematological-malignancies-treated-with-anticancer-therapy
#17
REVIEW
Man Fai Law, Rita Ho, Carmen K M Cheung, Lydia H P Tam, Karen Ma, Kent C Y So, Bonaventure Ip, Jacqueline So, Jennifer Lai, Joyce Ng, Tommy H C Tam
Hepatitis due to hepatitis B virus (HBV) reactivation can be severe and potentially fatal, but is preventable. HBV reactivation is most commonly reported in patients receiving cancer chemotherapy, especially rituximab-containing therapy for hematological malignancies and those receiving stem cell transplantation. All patients with hematological malignancies receiving anticancer therapy should be screened for active or resolved HBV infection by blood tests for hepatitis B surface antigen (HBsAg) and antibody to hepatitis B core antigen (anti-HBc)...
July 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27547930/-legal-framework-of-autologous-fat-usage-in-point-of-care-treatments-in-plastic-and-aesthetic-surgery-risks-of-criminal-prosecution-and-infringement-of-medical-law-due-to-pharmaceutical-regulations
#18
T Faltus
The use of autologous fat, especially for (stem) cell-assisted lipotransfer in plastic and aesthetic surgery, has regularly been regarded as the manufacture and application of so called Advanced Therapy Medicinal Products (ATMP). However, the in-house production of such pharmaceuticals at the point-of-care (PoC) in the surgeon's practice is not permitted without an official manufacturing license. Therefore, before beginning such treatments, a pharmaceutical manufacturing license has to be granted to the surgeon to avoid criminal prosecution and negative consequences due to infringement of professional regulations...
August 2016: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/27547444/regenerative-medicine-in-china-main-progress-in-different-fields
#19
REVIEW
Biao Cheng, Shu-Liang Lu, Xiao-Bing Fu
Regenerative medicine (RM) is an emerging interdisciplinary field of research and China has developed the research quickly and impressed the world with numerous research findings in stem cells, tissue engineering, active molecules and gene therapy. Important directions are induced differentiation of induced pluripotent stem and embryo stem cells as well as somatic stem cell differentiation potential and their application in trauma, burns, diseases of aging and nerve regeneration. The products ActivSkin and bone repair scaffolds have been approved and are applied in the clinic, and similar products are being studied...
2016: Military Medical Research
https://www.readbyqxmd.com/read/27496493/national-hematopoietic-stem-cells-transplant-registry-in-poland-nationwide-internet-reporting-system-and-results
#20
A Łęczycka, M Dudkiewicz, J Czerwiński, P Malanowski, J Żalikowska-Hołoweńko, R Danielewicz
History of hematopoietic stem cell transplantations in Poland begins in early 1980s; the 1st bone marrow allotransplantation was performed in 1983 in the Central Clinical Hospital of the Military Medical Academy in Warsaw. Following years brought the 1st autologous stem cell transplantations. Ten years later, unrelated bone marrow transplantation was performed for the 1st time by the team of the Hematology and Blood and Marrow Transplantation Unit in Katowice. Since then, hematopoietic stem cell transplantation developed to be standard procedure and one of the most important therapies applied in leukemia treatment...
June 2016: Transplantation Proceedings
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