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https://www.readbyqxmd.com/read/27902785/apoptosis-related-gene-expression-profiling-in-hematopoietic-cell-fractions-of-mds-patients
#1
Saskia Mc Langemeijer, Niccolo Mariani, Ruth Knops, Christian Gilissen, Rob Woestenenk, Theo de Witte, Gerwin Huls, Bert A van der Reijden, Joop H Jansen
Although the vast majority of patients with a myelodysplastic syndrome (MDS) suffer from cytopenias, the bone marrow is usually normocellular or hypercellular. Apoptosis of hematopoietic cells in the bone marrow has been implicated in this phenomenon. However, in MDS it remains only partially elucidated which genes are involved in this process and which hematopoietic cells are mainly affected. We employed sensitive real-time PCR technology to study 93 apoptosis-related genes and gene families in sorted immature CD34+ and the differentiating erythroid (CD71+) and monomyeloid (CD13/33+) bone marrow cells...
2016: PloS One
https://www.readbyqxmd.com/read/27870894/identification-of-stages-of-erythroid-differentiation-in-bone-marrow-and-erythrocyte-subpopulations-in-blood-circulation-that-are-preferentially-lost-in-autoimmune-hemolytic-anemia-in-mouse
#2
Sreoshi Chatterjee, Nitin Bhardwaj, Rajiv K Saxena
Repeated weekly injections of rat erythrocytes produced autoimmune hemolytic anemia (AIHA) in C57BL/6 mice after 5-6 weeks. Using the double in vivo biotinylation (DIB) technique, recently developed in our laboratory, turnover of erythrocyte cohorts of different age groups during AIHA was monitored. Results indicate a significant decline in the proportion of reticulocytes, young and intermediate age groups of erythrocytes, but a significant increase in the proportion of old erythrocytes in blood circulation...
2016: PloS One
https://www.readbyqxmd.com/read/27758818/immunophenotypic-analysis-of-erythroid-dysplasia-in-myelodysplastic-syndromes-a-report-from-the-imdsflow-working-group
#3
Theresia M Westers, Eline M P Cremers, Uta Oelschlaegel, Ulrika Johansson, Peter Bettelheim, Sergio Matarraz, Alberto Orfao, Bijan Moshaver, Lisa Eidenschink Brodersen, Michael R Loken, Denise A Wells, Dolores Subira', Matthew Cullen, Jeroen G Te Marvelde, Vincent H J Van der Velden, Frank W M B Preijers, Sung-Chao Chu, Jean Feuillard, Estelle Guérin, Katherina Psarra, Anna Porwit, Leonie Saft, Robin Ireland, Timothy Milne, Marie C Béné, Birgit I Witte, Matteo G Della Porta, Wolfgang Kern, Arjan A van de Loosdrecht
Current recommendations for diagnosing myelodysplastic syndromes endorse flow cytometry as an informative tool. Most flow cytometry protocols focus on the analysis of progenitor cells and the evaluation of the maturing myelomonocytic lineage. However, one of the most frequently observed features of myelodysplastic syndromes is anemia, which may be associated with dyserythropoiesis. Therefore, analysis of changes in flow cytometry features of nucleated erythroid cells may complement current flow cytometry tools...
October 6, 2016: Haematologica
https://www.readbyqxmd.com/read/27736268/iron-chelation-an-adjuvant-therapy-to-target-metabolism-growth-and-survival-of-murine-pten-deficient-t-lymphoma-and-human-t-lymphoblastic-leukemia-lymphoma
#4
Joy Benadiba, Celia Rosilio, Marielle Nebout, Vera Heimeroth, Zouhour Neffati, Alexandra Popa, Didier Mary, Emmanuel Griessinger, Véronique Imbert, Nicolas Sirvent, Jean-François Peyron
Iron is an essential nutrient, acting as a catalyst for metabolic reactions that are fundamental to cell survival and proliferation. Iron complexed to transferrin is delivered to the metabolism after endocytosis via the CD71 surface receptor. We found that transformed cells from a murine PTEN-deficient T-cell lymphoma model and from T-cell acute lymphoblastic leukemia/lymphoma (T-ALL/T-LL) cell lines overexpress CD71. As a consequence, the cells developed an addiction toward iron whose chelation by deferoxamine (DFO) dramatically affected their survival to induce apoptosis...
October 13, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27733786/identification-and-characterization-of-pig-adipose-derived-progenitor-cells
#5
Shuang Zhang, Chunyu Bai, Dong Zheng, Yuhua Gao, Yanan Fan, Lu Li, Weijun Guan, Yuehui Ma
Adipose-derived stem cells (ADSCs) are multipotent, and can be differentiated into many cell types in vitro. In this study, tissues from pigs were chosen to identify and characterize ADSCs. Primary ADSCs were sub-cultured to passage 28. The surface markers of ADSCs: CD29, CD71, CD73, CD90, and CD166 were detected by reverse-transcription polymerase chain reaction assays and the markers CD29, CD44, CD105, and vimentin were detected by immunofluorescence. Growth curves and the capacity of clone-forming were performed to test the proliferation of ADSCs...
October 2016: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/27725143/analysis-of-hematopathology-and-alteration-of-jak1-stat3-stat5-signaling-axis-in-experimental-myelodysplastic-syndrome
#6
Suchismita Daw, Ritam Chatterjee, Aditya Law, Sujata Law
Hematological disorders like myelodysplastic syndrome (MDS) may arise due to cumulative dysregulation of various signalling pathways controlling proliferation, differentiation, maturation and apoptosis of bone marrow cells. This devastating bone marrow condition can be due to consequential abnormalities in haematopoiesis as well as its supportive microenvironment. Although mutations related to JAK/STAT pathway are common in myeloproliferative neoplasms, further studies are required to fully explore the myelodysplastic scenario regarding the concerned pathway...
October 8, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27637482/monitoring-genotoxicity-in-patients-receiving-chemotherapy-for-cancer-application-of-the-pig-a-assay
#7
Katsuyoshi Horibata, Akiko Ukai, Shigeo Ishikawa, Ayako Sugano, Masamitsu Honma
The recently introduced Pig-a in vivo gene mutation assay measures endogeneous mutations of Pig-a (human, PIG-A), an X-linked gene that is conserved across species from rodents to humans. Flow cytometric analysis enables the enumeration of glycosylphosphatidylinositol (GPI) anchor-deficient erythrocytes, resulting from a mutation in Pig-a/PIG-A, in only a few microliters of peripheral blood. Pig-a/PIG-A mutations appear to function in a neutral manner, allowing evaluation of the accumulated genotoxic effects of repeated exposures...
September 15, 2016: Mutation Research. Genetic Toxicology and Environmental Mutagenesis
https://www.readbyqxmd.com/read/27625200/umbilical-cord-cd71-erythroid-cells-are-reduced-in-neonates-born-to-women-in-spontaneous-preterm-labor
#8
Nardhy Gomez-Lopez, Roberto Romero, Yi Xu, Derek Miller, Ronald Unkel, Tippi C MacKenzie, Michela Frascoli, Sonia S Hassan
PROBLEM: Preterm neonates are highly susceptible to infection. Neonatal host defense against infection seems to be maintained by the temporal presence of immunosuppressive CD71+ erythroid cells. The aim of this study was to investigate whether umbilical cord CD71+ erythroid cells are reduced in neonates born to women who undergo spontaneous preterm labor/birth. METHOD OF STUDY: Umbilical cord blood samples (n=155) were collected from neonates born to women who delivered preterm with (n=39) and without (n=12) spontaneous labor or at term with (n=82) and without (n=22) spontaneous labor...
October 2016: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/27596706/role-of-regulatory-b-cells-in-immune-tolerance-to-allergens-and-beyond
#9
REVIEW
Willem van de Veen, Barbara Stanic, Oliver F Wirz, Kirstin Jansen, Anna Globinska, Mübeccel Akdis
Immune tolerance to both self-antigens and innocuous non-self-antigens is essential to protect the host against chronic inflammatory diseases and tissue damage. A wide range of cell types and suppressive molecules are involved in induction and maintenance of tolerance. In addition to their key function in the production of immunoglobulins, B cells can regulate immune responses through their surface molecules and secretion of cytokines. Regulatory B (Breg) cells are characterized by their immunosuppressive capacity, which is often mediated through IL-10 secretion...
September 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27587253/-influence-of-hif-2%C3%AE-on-the-expression-of-gata-1-in-bone-marrow-cd71-cell-of-high-altitude-polycythemia-rat-model
#10
F Liu, W Wei, J Ding, Y Chen, T T Feng, L H Ji, J Y Shi
OBJECTIVE: To explore the influence of hypoxia-inducible factor-2 αlpha (HIF-2α) on the expression of erythroid-specific transcription factor GATA-1 in bone marrow CD71(+) cells of rat model with high altitude polycythemia (HAPC). METHODS: A total of 48 male SD rats were selected and randomly divided into normal control group and HAPC group. HAPC model was established at an altitude of 4 300 meters in the natural environment and verified by bone marrow cell classification and counting, hematologic parameters and serum EPO detection...
August 14, 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/27579045/characterization-and-expression-of-senescence-marker-in-prolonged-passages-of-rat-bone-marrow-derived-mesenchymal-stem-cells
#11
Noridzzaida Ridzuan, Akram Al Abbar, Wai Kien Yip, Maryam Maqbool, Rajesh Ramasamy
The present study is aimed at optimizing the in vitro culture protocol for generation of rat bone marrow- (BM-) derived mesenchymal stem cells (MSCs) and characterizing the culture-mediated cellular senescence. The initial phase of generation and characterization was conducted using the adherent cells from Sprague Dawley (SD) rat's BM via morphological analysis, growth kinetics, colony forming unit capacity, immunophenotyping, and mesodermal lineage differentiation. Mesenchymal stem cells were successfully generated and characterized as delineated by the expressions of CD90...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27577202/-analysis-of-hematological-phenotype-and-genotype-of-23-patients-from-guangdong-with-co-inherited-hemoglobin-hb-westmead-and-%C3%AE-thalassemia
#12
Miansheng Yan, Xin Gan, Min Liu, Bin Huang, Liangying Zhong
OBJECTIVE: To analyze the genotype-phenotype correlation among carriers from Guangdong with co-inherited hemoglobin Hb Westmead (HbWS) and β-thalassemia. METHODS: Twenty three patients (including 9 males and 14 females, aged 1-53 year old) were diagnosed by hematological analysis and genetic testing. Complete blood cell count and hemoglobin electrophoresis analysis were performed on a XE4000i automatic hemocyte analyzer. Hb, HbF and HbA2 were tested by high performance liquid chromatography (HPLC)...
October 2016: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/27569462/-influence-of-non-alcoholic-fatty-liver-disease-on-geno-and-immunotoxic-alterations-of-peripheric-blood-lymphocytes-of-oil-refinery-workers
#13
Anna Tompa, Anna Biró, Péter Balázs, Mátyás Jakab
INTRODUCTION: More than half of the Hungarian population is overweight or obese, therefore, non-alcoholic fatty liver is a common problem. According to clinical experience, 20-30% of fatty liver cases is not related to alcohol, but can be linked to diabetes, obesity or metabolic syndrome. AIM: The authors studied the correlation between genotoxicity, immuntoxicity and non-alcoholic fatty liver among oil refinery workers. METHOD: During this genotoxicological monitoring study the data of 107 exposed were compared to 67 controls...
August 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27555313/a-novel-erythrocyte-binding-protein-of-plasmodium-vivax-suggests-an-alternate-invasion-pathway-into-duffy-positive-reticulocytes
#14
Francis B Ntumngia, Richard Thomson-Luque, Letícia de Menezes Torres, Karthigayan Gunalan, Luzia H Carvalho, John H Adams
UNLABELLED: Erythrocyte invasion by malaria parasites is essential for blood-stage development and an important determinant of host range. In Plasmodium vivax, the interaction between the Duffy binding protein (DBP) and its cognate receptor, the Duffy antigen receptor for chemokines (DARC), on human erythrocytes is central to blood-stage infection. Contrary to this established pathway of invasion, there is growing evidence of P. vivax infections occurring in Duffy blood group-negative individuals, suggesting that the parasite might have gained an alternative pathway to infect this group of individuals...
2016: MBio
https://www.readbyqxmd.com/read/27555239/correlation-of-transferrin-receptor-cd71-with-ki67-expression-on-stimulated-human-and-mouse-t-cells-the-kinetics-of-expression-of-t-cell-activation-markers
#15
Melika Motamedi, Lai Xu, Shokrollah Elahi
T cell activation is a fascinating, yet tightly regulated cascade of events that lead to the induction of cytokine and expression of activation molecules that eventually result in divergent immune responses. Analyzing the qualitative and quantitative nature of T cell activation in different immunological conditions provides valuable information about the immune responses mediated by different agents or vaccinations. We evaluated the kinetics of CD4(+) and CD8(+) T cell activation markers such as CD25, CD38, CD69, CD71 and Ki67 following anti-CD3/CD28 stimulation over a time course...
October 2016: Journal of Immunological Methods
https://www.readbyqxmd.com/read/27531797/-effect-of-pd98059-on-proliferation-and-apoptosis-of-cd71-cd235a-nucleated-erythrocytes-in-the-patients-with-high-altitude-polycythemia
#16
Ting-Ting Feng, Lin-Hua Ji, Fang Liu, Yuan-Fang Han, Rong Ren, Jian-Ping Li, Wei Luo, Juan Su, Sen Cui
UNLABELLED: Objective: To study the effect of PD98059, a specific inhibitor of Ras/Raf/MEK/ERK signaling pathway, on the proliferation and apoptisis of bone marrow CD71(+), CD235a(+) nucleated erythrocytes in patients with high altitude polycythemia (HAPC) and the pathogenesis of HAPC. METHODS: The CD71(+) and CD235a(+) nucleated erythrocytes in HAPC patients and controls (patients with simple obsolete stracture) were sorted by using the immunemagnetic beads, then were added with 5, 10, 20 µmol/L of PD98059 and DMSO (as control) and were cultured for 72 h under hypoxia...
August 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/27531759/-differentiation-of-k562-cells-induced-by-pulsatilla-saponin-a-into-erythroid-lineage
#17
Tong Wang, Ri Zhang, Xiao-Fei Qi, Sha-Sha Bai, Fang Gong, Zi-Xing Chen, Jian-Nong Cen, Ming-Qing Zhu, Lan Dai
OBJECTIVE: To explore the differentiation-inducing potentiality of Pulsatilla saponin A on K562 cells. METHODS: Pulsatilla saponin A of different concentrations was used to treat K562 cells; the benzidine staining and the hemoglobinometry were applied to measure the change of hemoglobin content; the flow cytometry (FCM) was used to detect the expression of CD71 and GPA on K562 cells. RESULTS: K562 cells treated with 4 µg/ml pulsatilla saponin A differentiated into the erythroid lineage...
August 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/27514395/prognostic-significance-of-androgen-receptor-expression-in-invasive-breast-cancer-transcriptomic-and-protein-expression-analysis
#18
Mohammad A Aleskandarany, Rezvan Abduljabbar, Ibraheem Ashankyty, Ahmed Elmouna, Dena Jerjees, Simak Ali, Laki Buluwela, Maria Diez-Rodriguez, Carlos Caldas, Andrew R Green, Ian O Ellis, Emad A Rakha
Differential prognostic roles of Androgen Receptor (AR) have been proposed in breast cancer (BC) depending on tumour oestrogen receptor (ER) status. This study aimed to evaluate the prognostic and/or predictive significance of AR expression in invasive BC. In this study AR expression was studied on a large (n = 1141) consecutive series of early-stage (I-III) BC using tissue microarray and immunohistochemistry (IHC). AR mRNA expression was assessed in a subset of cases. The prognostic impact of AR mRNA expression was externally validated using the online BC gene expression data sets (n = 25 data sets, 4078 patients)...
September 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27510666/expression-of-cd71-by-flow-cytometry-in-acute-leukemias-more-often-seen-in-acute-myeloid-leukemia
#19
Amit Pande, Pranav Dorwal, Dharmendra Jain, Neetu Tyagi, Simmi Mehra, Ritesh Sachdev, Vimarsh Raina
BACKGROUND: CD71 is a marker that has been usually used for identifying dysplasia in the erythroid series. We have tried to evaluate the expression of CD71 in various types of acute leukemias. MATERIALS AND METHODS: We studied 48 patients of acute leukemia, of which 25 were acute myeloid leukemia (AML), 13 were precursor B-acute lymphoblastic leukemia (B-ALL), 8 were T-ALL, and 2 were mixed phenotype acute leukemia (T/myeloid) as per the WHO classification. RESULTS: We found that the expression of CD71 was most prevalent in AMLs (84%), followed by T-ALL (50%) and least in B-ALL (30%)...
July 2016: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/27509031/characterization-of-laminin-binding-integrin-internalization-in-prostate-cancer-cells
#20
Lipsa Das, Todd A Anderson, Jaime M C Gard, Isis C Sroka, Stephanie R Strautman, Raymond B Nagle, Colm Morrissey, Beatrice S Knudsen, Anne E Cress
Laminin binding integrins α6 (CD49f) and α3 (CD49c) are persistently but differentially expressed in prostate cancer (PCa). Integrin internalization is an important determinant of their cell surface expression and function. Using flow cytometry, and first order kinetic modelling, we quantitated the intrinsic internalization rates of integrin subunits in a single cycle of internalization. In PCa cell line DU145, α6 integrin internalized with a rate constant (kactual ) of 3.25min(-1) , 3-fold faster than α3 integrin (1...
August 10, 2016: Journal of Cellular Biochemistry
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