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https://www.readbyqxmd.com/read/29145561/clinical-significance-of-cd73-in-triple-negative-breast-cancer-multiplex-analysis-of-a-phase-iii-clinical-trial
#1
L Buisseret, S Pommey, B Allard, S Garaud, M Bergeron, I Cousineau, L Ameye, Y Bareche, M Paesmans, J P A Crown, A Di Leo, S Loi, M Piccart-Gebhart, K Willard-Gallo, C Sotiriou, J Stagg
Background: CD73 is an ecto-enzyme that promotes tumor immune escape through the production of immunosuppressive extracellular adenosine in the tumor microenvironment. Several CD73 inhibitors and adenosine receptor antagonists are being evaluated in phase I clinical trials. Patients and methods: Full-face sections from formalin-fixed paraffin-embedded primary breast tumors from 122 samples of triple-negative breast cancer from the BIG 02-98 adjuvant phase III clinical trial were included in our analysis...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29139170/single-cell-resolution-of-human-hemato-endothelial-cells-defines-transcriptional-signatures-of-hemogenic-endothelium
#2
Mathew G Angelos, Juan E Abrahante, Robert H Blum, Dan S Kaufman
Endothelial-to-hematopoietic transition (EHT) is an important stage in definitive hematopoietic development. However, the genetic mechanisms underlying human EHT remains poorly characterized. We performed single cell RNA-seq using 55 hemogenic endothelial cells (HE: CD31(+) CD144(+) CD41(-) CD43(-) CD45(-) CD73(-) RUNX1c(+) ), 47 vascular endothelial cells without hematopoietic potential (non-HE: CD31(+) CD144(+) CD41(-) CD43(-) CD45(-) CD73(-) RUNX1c(-) ), and 35 hematopoietic progenitor cells (HP: CD34(+) CD43(+) RUNX1c(+) ) derived from human embryonic stem cells (hESCs)...
November 15, 2017: Stem Cells
https://www.readbyqxmd.com/read/29138638/tissue-source-and-cell-expansion-condition-influence-phenotypic-changes-of-adipose-derived-stem-cells
#3
Lauren H Mangum, Shanmugasundaram Natesan, Randolph Stone, Nicole L Wrice, David A Larson, Kyle F Florell, Barbara A Christy, Maryanne C Herzig, Andrew P Cap, Robert J Christy
Stem cells derived from the subcutaneous adipose tissue of debrided burned skin represent an appealing source of adipose-derived stem cells (ASCs) for regenerative medicine. Traditional tissue culture uses fetal bovine serum (FBS), which complicates utilization of ASCs in human medicine. Human platelet lysate (hPL) is one potential xeno-free, alternative supplement for use in ASC culture. In this study, adipogenic and osteogenic differentiation in media supplemented with 10% FBS or 10% hPL was compared in human ASCs derived from abdominoplasty (HAP) or from adipose associated with debrided burned skin (BH)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29132404/comparison-of-the-efficacy-and-safety-of-fp-1201-lyo-intravenously-administered-recombinant-human-interferon-beta-1a-and-placebo-in-the-treatment-of-patients-with-moderate-or-severe-acute-respiratory-distress-syndrome-study-protocol-for-a-randomized-controlled
#4
Geoff Bellingan, David Brealey, Jordi Mancebo, Alain Mercat, Nicolò Patroniti, Ville Pettilä, Michael Quintel, Jean-Louis Vincent, Mikael Maksimow, Markku Jalkanen, Ilse Piippo, V Marco Ranieri
BACKGROUND: Acute respiratory distress syndrome (ARDS) results in vascular leakage, inflammation and respiratory failure. There are currently no approved pharmacological treatments for ARDS and standard of care involves treatment of the underlying cause, and supportive care. The vascular leakage may be related to reduced concentrations of local adenosine, which is involved in maintaining endothelial barrier function. Interferon (IFN) beta-1a up-regulates the cell surface ecto-5'-nucleotidase cluster of differentiation 73 (CD73), which increases adenosine levels, and IFN beta-1 may, therefore, be a potential treatment for ARDS...
November 13, 2017: Trials
https://www.readbyqxmd.com/read/29132324/caismov24-a-new-human-low-grade-serous-ovarian-carcinoma-cell-line
#5
Rodrigo Fernandes da Silva, Daniela Maira Cardozo, Gisele Olinto Libanio Rodrigues, Caroline Natânia de Souza-Araújo, Natacha Azussa Migita, Liliana Aparecida Lucci de Angelo Andrade, Sophie Derchain, José Andrés Yunes, Fernando Guimarães
BACKGROUND: The spontaneous immortalization of primary malignant cells is frequently assigned to their genetic instability during in vitro culturing. In this study, the new epithelial ovarian cancer cell line CAISMOV24 was described and compared with its original low-grade serous ovarian carcinoma. METHODS: The in vitro culture was established with cells isolated from ascites of a 60-year-old female patient with recurrent ovarian cancer. The CAISMOV24 line was assessed for cell growth, production of soluble biomarkers, expression of surface molecules and screened for typical mutations found in serous ovarian carcinoma...
November 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29129620/human-adipose-derived-stem-cells-adsc-and-human-periodontal-ligament-stem-cells-pdlsc-as-cellular-substrates-of-a-toxicity-prediction-assay
#6
Natássia Caroline Resende Corrêa, Crisciele Kuligovski, Ariane Caroline Campos Paschoal, Ana Paula Ressetti Abud, Carmen Lucia Kuniyoshi Rebelatto, Lidiane Maria Boldrini Leite, Alexandra Cristina Senegaglia, Bruno Dallagiovanna, Alessandra Melo de Aguiar
With the increasing need to develop in vitro assays to replace animal use, human stem cell-derived methods are emerging and showing outstanding contributions to the toxicological screening of substances. Adult human stem cells such as adipose-derived stem cells (ADSC) and periodontal ligament stem cells (PDLSC) were used as cell substrates for a cytotoxicity assay and toxicity prediction using the neutral red uptake (NRU) assay. First, primary cell cultures from three independent donors, from each tissue source, were characterized as mesenchymal stem cells (MSC) by plastic adherence and appropriate immunophenotype for MSC markers (positive for CD90, CD73, and CD105 and negative for CD11b, CD34, CD45, HLADR, and CD19)...
November 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29127315/human-gingiva-derived-mesenchymal-stem-cells-ameliorate-streptozoticin-induced-t1dm-in-mice-via-suppression-of-t-effector-cells-and-up-regulating-treg-subsets
#7
Wei Zhang, Li Zhou, Junlong Dang, Ximei Zhang, Julie Wang, Yanming Chen, Jichao Liang, Dongqing Li, Jilin Ma, Jia Yuan, Weiwen Chen, Homayoun H Zadeh, Nancy Olsen, Song Guo Zheng
There is yet no cure for type 1 diabetes (T1DM) so far. A significant body of evidence has demonstrated that bone marrow-derived mesenchymal stem cells (BMSCs) showed great potential in controlling T1DM. But there exists much difficulty in using BMSCs as a clinical therapy. We here test whether a new population of mesenchymal stem cells from human gingiva (GMSCs), which has many advantages over BMSCs, can delay or prevent progress of T1DM. GMSCs were adoptively transferred to multiple low-dose streptozotocin (STZ)-induced T1DM...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29126851/ccr6-signaling-inhibits-suppressor-function-of-induced-treg-during-gut-inflammation
#8
Neeraja Kulkarni, Heikrujam Thoihen Meitei, Sandip Ashok Sonar, Praveen Kumar Sharma, Vikkarasan Rehman Mujeeb, Sharad Srivastava, Ramanamurthy Boppana, Girdhari Lal
CCR6 is a G protein-coupled receptor (GPCR) that binds to a specific chemokine, CCL20. The role of CCR6-CCL20 is very well studied in the migration of immune cells, but the non-chemotaxis functions of CCR6 signaling were not known. Here, we show that during gut inflammation, the frequency of Foxp3(+)CD4(+) T cells (Tregs) reduced in the secondary lymphoid tissues and CCR6(+) Tregs enhanced the expression of RORγt. The peripheral blood mononuclear cells (PBMCs) of ulcerative colitis (UC) patients showed lower percentages of Foxp3(+)CD4(+) T cells, as compared to healthy individuals, with CCR6(+) Tregs showing higher RORγt expression as compared to CCR6(-)Tregs...
November 7, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29118937/isolation-differentiation-and-characterization-of-mesenchymal-stem-cells-from-human-bone-marrow
#9
Kaveh Baghaei, Seyed Mohmoud Hashemi, Samaneh Tokhanbigli, Ali Asadi Rad, Hamid Assadzadeh-Aghdaei, Abdolhamid Sharifian, Mohammad Reza Zali
Aim: We describe the minimum requirements and a simplified method for isolation and characterization of mesenchymal stem cells (MSCs) from human bone marrow. Background: MSCs are well known adult stem cells present in many tissues such as adipocytes, chondrocytes, osteoblasts, and neurons. Many isolations and characterization methods have emerged to apply MSCs in the clinical applications, which many of them are expensive and time-consuming. Methods: MSC isolation was carried out from human bone marrow, and cultured in defined medium...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/29108754/extracellular-adenosine-produced-by-ecto-5-nucleotidase-cd73-regulates-macrophage-pro-inflammatory-responses-nitric-oxide-production-and-favors-salmonella-persistence
#10
Matthew G Costales, Mohammad Samiul Alam, Christopher Cavanaugh, Kristina M Williams
Surface enzymes CD39 (nucleoside triphosphate dephosphorylase) and CD73 (ecto-5'-nucleotidase) mediate the synthesis of extracellular adenosine that can regulate immune responses. Adenosine produced by CD39/CD73 acts via adenosine receptors (ARs). CD73 is expressed by a variety of cell types and mediates anti-inflammatory responses. Because efficient innate immune responses are required for clearance of Salmonella infection, we investigated the role of CD73 in macrophage function, including phagocytosis, intracellular killing of Salmonella, and anti-bacterial pro-inflammatory responses to Salmonella-whole cell lysate (ST-WCL) or Salmonella infection...
November 11, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29105402/adipose-derived-stem-cells-affect-mir-145-and-p53-expressions-of-co-cultured-hematopoietic-stem-cells
#11
Tahereh Foroutan, Aisan Farhadi, Saeed Abroun, Bahram Mohammad Soltani
OBJECTIVES: Umbilical cord blood is used for transplantation purposes in regenerative medicine of hematological disorders. MicroRNAs are important regulators of gene expression that control both physiological and pathological processes such as cancer development and incidence. There is a new relation between p53 (tumor suppressor gene) and miR-145 (suppressor of cell growth) upregulation. In this study, we have assessed how adipose-derived stem cells (ADSCs) affect the expansion of hematopoietic stem cells (HSCs), as well as miR-145 and p53 expressions...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29105387/in-vitro-effects-of-wistar-rat-prenatal-and-postnatal-cerebrospinal-fluid-on-neural-differentiation-and-p-roliferation-of-mesenchymal-stromal-cells-derived-from-bone-marrow
#12
Rozmehr Shokohi, Mohammad Nabiuni, Saeed Irian, Jaleel A Miyan
OBJECTIVES: Cerebrospinal fluid (CSF) plays an important role in cortical development during the fetal stages. Embryonic CSF (E-CSF) consists of numerous neurotrophic and growth factors that regulate neurogenesis, differentiation, and proliferation. Mesenchymal stem cells (MSCs) are multi-potential stem cells that can differentiate into mesenchymal and non-mesenchymal cells, including neural cells. This study evaluates the prenatal and postnatal effects of CSF on proliferation and neural differentiation of bone marrow MSCs (BM-MSCs) at gestational ages E19, E20, and the first day after birth (P1)...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29105086/dose-dependent-effect-of-triiodothyronine-on-the-chondrogenic-differentiation-of-mesenchymal-stem-cells-from-the-bone-marrow-of-female-rats
#13
Higor A Assis, Nathalia C Elert, André Luiz B P Azevedo, Iolanda S Braga, Rogéria Serakides, Natália de Melo Ocarino, Alfredo M de Goes, Francisco de Paula Careta, Greiciane G Paneto, Adriana M A da Silva, Jankerle N Boeloni
OBJECTIVES: Verify the in-vitro effect of triiodothyronine (T3) on the chondrogenic differentiation of female rat bone marrow mesenchymal stem cells (BMMSCs) over several time periods and at several doses. METHODS: CD54 + /CD73 + /CD90 +  BMMSCs from Wistar female rats were cultured in chondrogenic medium with or without T3 (0.01; 1; 100; 1000 nm). At seven, 14 and 21 days, the cell morphology, chondrogenic matrix formation and expression of Sox9 and collagen II were evaluated...
November 3, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29103803/cd39-and-cd73-activity-are-protective-in-a-mouse-model-of-antiphospholipid-antibody-induced-miscarriages
#14
Anushka N Samudra, Karen M Dwyer, Carly Selan, Susanna Freddi, Lisa Murray-Segal, Mandana Nikpour, Michael J Hickey, Karlheinz Peter, Simon C Robson, Maithili Sashindranath, Peter J Cowan, Harshal H Nandurkar
OBJECTIVE: Antiphospholipid syndrome (APS) is a systemic autoimmune disorder of young adults associated with devastating pregnancy complications (recurrent miscarriages, preeclampsia and low birth weight) and vascular complications including thrombosis. The key components implicated in pathogenesis of APS are the complement cascade and tissue factor (TF) activity causing inflammation and coagulation. Purinergic signalling involving catabolism of ATP to adenosine by cell-surface enzymes CD39 and CD73 has anti-inflammatory and anti-thrombotic effects...
November 2, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29100095/mutations-in-gpaa1-encoding-a-gpi-transamidase-complex-protein-cause-developmental-delay-epilepsy-cerebellar-atrophy-and-osteopenia
#15
Thi Tuyet Mai Nguyen, Yoshiko Murakami, Eamonn Sheridan, Sophie Ehresmann, Justine Rousseau, Anik St-Denis, Guoliang Chai, Norbert F Ajeawung, Laura Fairbrother, Tyler Reimschisel, Alexandra Bateman, Elizabeth Berry-Kravis, Fan Xia, Jessica Tardif, David A Parry, Clare V Logan, Christine Diggle, Christopher P Bennett, Louise Hattingh, Jill A Rosenfeld, Michael Scott Perry, Michael J Parker, Françoise Le Deist, Maha S Zaki, Erika Ignatius, Pirjo Isohanni, Tuula Lönnqvist, Christopher J Carroll, Colin A Johnson, Joseph G Gleeson, Taroh Kinoshita, Philippe M Campeau
Approximately one in every 200 mammalian proteins is anchored to the cell membrane through a glycosylphosphatidylinositol (GPI) anchor. These proteins play important roles notably in neurological development and function. To date, more than 20 genes have been implicated in the biogenesis of GPI-anchored proteins. GPAA1 (glycosylphosphatidylinositol anchor attachment 1) is an essential component of the transamidase complex along with PIGK, PIGS, PIGT, and PIGU (phosphatidylinositol-glycan biosynthesis classes K, S, T, and U, respectively)...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29096714/isolation-and-prolonged-expansion-of-oral-mesenchymal-stem-cells-under-clinical-grade-gmp-compliant-conditions-differentially-affects-stemness-properties
#16
Athina Bakopoulou, Danae Apatzidou, Eleni Aggelidou, Evangelia Gousopoulou, Gabriele Leyhausen, Joachim Volk, Aristeidis Kritis, Petros Koidis, Werner Geurtsen
BACKGROUND: Development of clinical-grade cell preparations is central to meeting the regulatory requirements for cellular therapies under good manufacturing practice-compliant (cGMP) conditions. Since addition of animal serum in culture media may compromise safe and efficient expansion of mesenchymal stem cells (MSCs) for clinical use, this study aimed to investigate the potential of two serum/xeno-free, cGMP culture systems to maintain long-term "stemness" of oral MSCs (dental pulp stem cells (DPSCs) and alveolar bone marrow MSCs (aBMMSCs)), compared to conventional serum-based expansion...
November 2, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29083399/oxidative-stress-controls-regulatory-t-cell-apoptosis-and-suppressor-activity-and-pd-l1-blockade-resistance-in-tumor
#17
Tomasz Maj, Wei Wang, Joel Crespo, Hongjuan Zhang, Weimin Wang, Shuang Wei, Lili Zhao, Linda Vatan, Irene Shao, Wojciech Szeliga, Costas Lyssiotis, J Rebecca Liu, Ilona Kryczek, Weiping Zou
Live regulatory T cells (Treg cells) suppress antitumor immunity, but how Treg cells behave in the metabolically abnormal tumor microenvironment remains unknown. Here we show that tumor Treg cells undergo apoptosis, and such apoptotic Treg cells abolish spontaneous and PD-L1-blockade-mediated antitumor T cell immunity. Biochemical and functional analyses show that adenosine, but not typical suppressive factors such as PD-L1, CTLA-4, TGF-β, IL-35, and IL-10, contributes to apoptotic Treg-cell-mediated immunosuppression...
October 30, 2017: Nature Immunology
https://www.readbyqxmd.com/read/29078802/restoring-the-quantity-and-quality-of-elderly-human-mesenchymal-stem-cells-for-autologous-cell-based-therapies
#18
Travis J Block, Milos Marinkovic, Olivia N Tran, Aaron O Gonzalez, Amanda Marshall, David D Dean, Xiao-Dong Chen
BACKGROUND: Degenerative diseases are a major public health concern for the aging population and mesenchymal stem cells (MSCs) have great potential for treating many of these diseases. However, the quantity and quality of MSCs declines with aging, limiting the potential efficacy of autologous MSCs for treating the elderly population. METHODS: Human bone marrow (BM)-derived MSCs from young and elderly donors were obtained and characterized using standard cell surface marker criteria (CD73, CD90, CD105) as recommended by the International Society for Cellular Therapy (ISCT)...
October 27, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29069643/-repair-treg-cells-in-tissue-injury
#19
Chaoqi Zhang, Lifeng Li, Kexin Feng, Daoyang Fan, Wenhua Xue, Jingli Lu
Studies in mice and humans have elucidated an important role for Tregs in promoting tissue repair and restoring tissue integrity. Emerging evidence has revealed that Tregs promoted wound healing and repair processes at multiple tissue sites, such as the heart, liver, kidney, muscle, lung, bone and central nervous system. The localization of repair Tregs in the lung, muscle and liver exhibited unique phenotypes and functions. Epidermal growth factor receptor, amphiregulin, CD73/CD39 and keratinocyte growth factor are important repair factors that are produced or expressed by repair Tregs; these factors coordinate with parenchymal cells to limit injury and promote repair...
October 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29067104/isolation-and-characterization-of-human-umbilical-cord-derived-endothelial-colony-forming-cells
#20
Hao Zhang, Yanling Tao, Saisai Ren, Haihui Liu, Hui Zhou, Jiangwei Hu, Yongyong Tang, Bin Zhang, Hu Chen
Endothelial colony-forming cells (ECFCs) are a population of endothelial progenitor cells (EPCs) that display robust proliferative potential and vessel-forming capability. Previous studies have demonstrated that a limited number of ECFCs may be obtained from adult bone marrow, peripheral blood and umbilical cord (UC) blood. The present study describes an effective method for isolating ECFCs from human UC. The ECFCs derived from human UC displayed the full properties of EPCs. Analysis of the growth kinetics, cell cycle and colony-forming ability of the isolated human UC-ECFCs indicated that the cells demonstrated properties of stem cells, including relative stability and rapid proliferation in vitro...
November 2017: Experimental and Therapeutic Medicine
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