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https://www.readbyqxmd.com/read/29141374/-association-of-pd-1-tim-3-and-trem-1-single-nucleotide-polymorphisms-with-pulmonary-tuberculosis-susceptibility
#1
F M Wang, X Zhang, L Lan, J M Ji, H B Tang, X J Yao, Y Jiang, J Qian, X G Xu, Q Li, P Yao, J H Li, Y P Shen
Objective: To investigate the association of programmed cell death 1(PD-1), T cell immunoglobulin mucin 3 (TIM-3) and triggering receptor expressed on myeloid cells-1 (TREM-1) genes polymorphisms with pulmonary tuberculosis susceptibility. Methods: In this case-control study, peripheral venous blood of 100 pulmonary tuberculosis patients (pulmonary tuberculosis group) in the Jintan People's Hospital of Changzhou and of community physical examination volunteers (health control group) was collected from Mar 2015 to Sep 2016...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141050/differential-immunomodulation-in-human-monocytes-versus-macrophages-by-filarial-cystatin
#2
Gopinath Venugopal, Marion Mueller, Susanne Hartmann, Svenja Steinfelder
Parasitic nematodes have evolved powerful immunomodulatory molecules to enable their survival in immunocompetent hosts by subverting immune responses and minimizing pathological processes. One filarial molecule known to counteract host immune responses by inducing IL-10 and regulatory macrophages in mice is filarial cystatin. During a patent filarial infection monocytes encounter microfilariae in the blood, an event that occurs in asymptomatically infected filariasis patients that are immunologically hyporeactive...
2017: PloS One
https://www.readbyqxmd.com/read/29140934/response-of-symptomatic-persistent-chronic-disseminated-candidiasis-to-corticosteroid-therapy-in-immunosuppressed-pediatric-patients-case-study-and-review-of-the-literature
#3
Vered Shkalim-Zemer, Itzhak Levi, Salvador Fischer, Hannah Tamary, Joanne Yakobovich, Gali Avrahami, Gil Gilad, Sara Elitzur, Isaac Yaniv, Ronit Elhasid, Michal Manistersky, Itamar Shalit
BACKGROUND: Chronic disseminated candidiasis (CDC) is a severe invasive fungal infection principally observed during neutrophil recovery in patients with acute leukemia treated with intensive chemotherapy. Its pathophysiology remains unclear. We describe the management of six children with symptomatic CDC who did not respond to antifungal therapy. METHODS: The databases of the hematology-oncology departments of two tertiary pediatric medical centers were searched for all patients diagnosed with CDC from 2003 to 2015 who responded to corticosteroids after failing antifungal therapy...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29140408/philadelphia-chromosome-like-mixed-phenotype-acute-leukemia-demonstrating-p2ry8-crlf2-fusion-and-jak1-mutation
#4
Sarah M Choi, John K Frederiksen, Charles W Ross, Dale L Bixby, Lina Shao
Objectives: Philadelphia chromosome-like (Ph-like) genetic alterations define a subset of B lymphoblastic leukemia/lymphoma (B-ALL), which represents a separate provisional entity in the World Health Organization 2016 updated classification. However, these alterations have not been described outside the context of B-ALL. Methods: Cytogenomic array and molecular analysis identified a Ph-like signature in a mixed-phenotype acute leukemia (MPAL), B/myeloid, confirmed using conventional immunophenotypic and cytochemical analysis...
November 11, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29140182/tgf-%C3%AE-1-and-cxcl12-modulate-proliferation-and-chemotherapy-sensitivity-of-acute-myeloid-leukemia-cells-co-cultured-with-multipotent-mesenchymal-stromal-cells
#5
Roland Christian Schelker, Sabine Iberl, Gunnar Müller, Christina Hart, Wolfgang Herr, Jochen Grassinger
OBJECTIVES: Multipotent mesenchymal stromal cells (MSCs) play a central role within the bone marrow (BM) niche, supporting hematopoiesis via soluble factors like cytokines and chemokines. In our study, we sought to investigate the effect of blocking transforming growth factor beta 1 (TGF-β1) and C-X-C motif chemokine 12 (CXCL12) receptor CXCR4 on acute myeloid leukemia (AML) cells in an MSC co-culture system. METHODS: Human MSCs were obtained by BM aspirates and their phenotype and functional properties were confirmed in vitro...
November 15, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/29139571/human-prosthetic-joint-infections-are-associated-with-myeloid-derived-suppressor-cells-mdscs-implications-for-infection-persistence
#6
Cortney E Heim, Debbie Vidlak, Jessica Odvody, Curtis W Hartman, Kevin L Garvin, Tammy Kielian
Prosthetic joint infection (PJI) is a devastating complication of joint arthroplasty surgery typified by biofilm formation. Currently, mechanisms whereby biofilms persist and evade immune-mediated clearance in immune competent patients remain largely ill-defined. Therefore, the current study characterized leukocyte infiltrates and inflammatory mediator expression in tissues from patients with PJI compared to aseptic loosening. CD33(+) HLA-DR(-) CD66b(+) CD14(-/low) granulocytic myeloid-derived suppressor cells (G-MDSCs) were the predominant leukocyte population at sites of human PJI compared to aseptic tissues...
November 15, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29139296/differential-content-of-proteins-mrnas-and-mirnas-suggests-that-mdsc-and-their-exosomes-may-mediate-distinct-immune-suppressive-functions
#7
Lucia Geis-Asteggiante, Ashton T Belew, Virginia K Clements, Nathan J Edwards, Suzanne Ostrand-Rosenberg, Nagib M El-Sayed, Catherine Fenselau
Myeloid-derived suppressor cells (MDSC) are immature myeloid cells that accumulate in the circulation and the tumor microenvironment of most cancer patients. There, MDSC suppress both adaptive and innate immunity, hindering immunotherapies. The inflammatory milieu often present in cancers facilitates MDSC suppressive activity, causing aggressive tumor progression and metastasis. MDSC from tumor-bearing mice release exosomes, which carry biologically active proteins and mediate some of the immunosuppressive functions characteristic of MDSC...
November 15, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29139135/phase-1-study-of-quizartinib-in-combination-with-induction-and-consolidation-chemotherapy-in-patients-with-newly-diagnosed-acute-myeloid-leukemia
#8
Jessica K Altman, James M Foran, Keith W Pratz, Denise Trone, Jorge E Cortes, Martin S Tallman
Novel therapies have potential to improve outcomes in patients with acute myeloid leukemia (AML) harboring FLT3-ITD mutations that have high risk of relapse and poor survival following standard of care (SOC) cytarabine/anthracycline-based induction/consolidation chemotherapy. Quizartinib is a selective and highly potent FLT3 inhibitor that has shown strong single-agent activity in relapsed or refractory (R/R) AML. This phase 1, open-label, sequential group dose-escalation trial (NCT 01390337) is the first evaluating safety and tolerability of quizartinib in combination with SOC chemotherapy in newly diagnosed AML (ndAML)...
November 15, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/29138856/differentially-expressed-proteins-in-the-human-esophageal-cancer-cell-line-eca%C3%A2-109-in-the-presence-and-absence-of-gemcitabine
#9
Zenghuang Ma, Xiaojie Xue
The present study aimed to screen and study the roles of differentially expressed proteins in the human esophageal cancer cell line Eca‑109, in the presence and absence of gemcitabine (GEM). The 3‑(4,5)‑dimethylthiahiazo (-z-y1)-3,5-di-phenytetrazoliumromide (MTT) method was used to assay the vitality of the Eca‑109 cells following treatment with GEM (1‑16 µg/ml). The cell apoptosis was measured by using fluorescence activated cell sorting. The proteins in the treated Eca‑109 cells were extracted, validated, and assayed via two‑dimensional gel electrophoresis combined with matrix‑assisted laser desorption/ionization time of flight mass spectrometry (MALDI‑TOF‑MS)...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29138847/srpk1%C3%A2-sirna-suppresses-k562-cell-growth-and-induces-apoptosis-via-the-parp%C3%A2-caspase3-pathway
#10
Hailian Wang, Wei Ge, Wen Jiang, Dong Li, Xiuli Ju
Serine-arginine protein kinase 1 (SRPK1) has been used as an important signal mediator, and is associated with cancer development. However, studies have yet to determine whether SRPK1 suppresses leukemia cell growth and induces apoptosis. Studies have also yet to reveal the underlying mechanisms. In the present study, the effects of downregulating SRPK1 gene expression on chronic myeloid leukemia cell lines (K562 cells) were investigated through RNA interference (RNAi) and the proliferation inhibition and apoptosis induction of SRPK1 in K562 cells were analyzed...
November 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29138821/protective-effects-of-oxymatrine-against-lipopolysaccharide-d%C3%A2-galactosamine%C3%A2-induced-acute-liver-failure-through-oxidative-damage-via-activation-of-nrf2-ho%C3%A2-1-and-modulation-of-inflammatory-tlr4%C3%A2-signaling-pathways
#11
Jian Xu, Chengmin Li, Ziwei Li, Chan Yang, Lan Lei, Wei Ren, Yan Su, Chunping Chen
Oxymatrine has a variety of pharmacological functions, including anti-viral, anti-liver fibrotic, anti-cancer, anti‑bacterial, anti‑epidemic, analgesic, anti‑allergy and anti‑inflammatory properties. The present study aimed to investigate the protective effects of oxymatrine against lipopolysaccharide (LPS)/D‑galactosamine (D‑GalN)‑induced acute liver failure and the associated underlying mechanisms. Mice were administrated 4 mg/kg LPS and 600 mg/kg D‑GalN. Then, mice in the Oxymatrine group were treated with 120 mg/kg of oxymatrine for 4 weeks...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29138577/identification-and-validation-of-potential-prognostic-gene-biomarkers-for-predicting-survival-in-patients-with-acute-myeloid-leukemia
#12
Rui Huang, Xiwen Liao, Qiaochuan Li
Background: Molecular analysis is a promising source of clinically useful prognostic biomarkers. The aim of this investigation was to identify prognostic biomarkers for patients with acute myeloid leukemia (AML) by using the gene expression profile dataset from public database. Methods: The gene expression profile dataset and corresponding overall survival (OS) information of three cohorts of AML patients from GSE12417 and The Cancer Genome Atlas AML project (TCGA-LAML) were included in the present study...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29138493/suppression-of-srcap-chromatin-remodelling-complex-and-restriction-of-lymphoid-lineage-commitment-by-pcid2
#13
Buqing Ye, Benyu Liu, Liuliu Yang, Guanling Huang, Lu Hao, Pengyan Xia, Shuo Wang, Ying Du, Xiwen Qin, Pingping Zhu, Jiayi Wu, Nobuo Sakaguchi, Junyan Zhang, Zusen Fan
Lymphoid lineage commitment is an important process in haematopoiesis, which forms the immune system to protect the host from pathogen invasion. However, how multipotent progenitors (MPP) switch into common lymphoid progenitors (CLP) or common myeloid progenitors (CMP) during this process remains elusive. Here we show that PCI domain-containing protein 2 (Pcid2) is highly expressed in MPPs. Pcid2 deletion in the haematopoietic system causes skewed lymphoid lineage specification. In MPPs, Pcid2 interacts with the Zinc finger HIT-type containing 1 (ZNHIT1) to block Snf2-related CREBBP activator protein (SRCAP) activity and prevents the deposition of histone variant H2A...
November 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/29138398/characterization-of-macrophages-from-schizophrenia-patients
#14
Paul R Ormel, Hans C van Mierlo, Manja Litjens, Miriam E van Strien, Elly M Hol, René S Kahn, Lot D de Witte
Genetic, epidemiological and post mortem studies have described an association between schizophrenia (SCZ) and the immune system. Microglia, the tissue-resident macrophages of the brain, not only play an essential role in inflammatory processes, but also in neurodevelopment and synapse refinement. It has therefore been hypothesized that aberrant functioning of these myeloid immune cells is involved in SCZ pathogenesis. Until now cellular research into the role of myeloid cells in SCZ has been limited to monocytes and functional assays are lacking...
November 14, 2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/29138222/decitabine-enhances-targeting-of-aml-cells-by-cd34-progenitor-derived-nk-cells-in-nod-scid-il2rg-null-mice
#15
Jeannette Cany, Mieke W H Roeven, Janneke S Hoogstad-van Evert, Willemijn Hobo, Frans Maas, Rosalia Franco Fernandez, Nicole M A Blijlevens, Walter J van der Velden, Gerwin Huls, Joop H Jansen, Nicolaas P M Schaap, Harry Dolstra
Combining NK cell adoptive transfer with hypomethylating agents (HMA) is an attractive therapeutic approach for patients with acute myeloid leukemia (AML). However, data regarding the impact of HMA on NK cell functionality are mostly derived from in vitro studies with high non-clinical relevant drug concentrations. Here, we report a comparative study of azacitidine and decitabine in combination with allogeneic NK cells generated from CD34(+) hematopoietic stem and progenitor cells (HSPC-NK cells) in in vitro and in vivo AML models...
November 14, 2017: Blood
https://www.readbyqxmd.com/read/29138221/immature-cml-cells-implement-a-bmp-autocrine-loop-to-escape-tki-treatment
#16
Elodie Grockowiak, Bastien Laperrousaz, Sandrine Jeanpierre, Thibault Voeltzel, Boris Guyot, Stéphanie Gobert, Franck E Nicolini, Véronique Maguer-Satta
The BCR-ABL specific Tyrosine Kinase Inhibitors (TKI) changed the outcome of Chronic Myeloid Leukemia (CML), turning a life-threatening disease into a chronic illness. However, TKI are not yet curative, since most patients retain leukemic stem cells (LSC) and their progenitors in bone marrow and relapse following treatment cessation. At diagnosis, deregulations of the Bone Morphogenetic Proteins (BMP) pathway are involved in LSC and progenitors expansion. Here, we report that BMP pathway alterations persist in TKI-resistant patients...
November 14, 2017: Blood
https://www.readbyqxmd.com/read/29137411/a-novel-polyamine-blockade-therapy-activates-an-anti-tumor-immune-response
#17
Eric T Alexander, Allyson Minton, Molly C Peters, Otto Phanstiel, Susan K Gilmour
Most tumors maintain elevated levels of polyamines to support their growth and survival. This study explores the anti-tumor effect of polyamine starvation via both inhibiting polyamine biosynthesis and blocking the upregulated import of polyamines into the tumor. We demonstrate that polyamine blockade therapy (PBT) co-treatment with both DFMO and a novel polyamine transport inhibitor, Trimer PTI, significantly inhibits tumor growth more than treatment with DFMO or the Trimer PTI alone. The anti-tumor effect of PBT was lost in mice where CD4(+) and CD8(+) T cells were antibody depleted, implying that PBT stimulates an anti-tumor immune effect that is T-cell dependent...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137406/the-forkhead-box-c1-foxc1-transcription-factor-is-downregulated-in-acute-promyelocytic-leukemia
#18
Emiliano Fabiani, Giulia Falconi, Nélida Inés Noguera, Ernestina Saulle, Laura Cicconi, Mariadomenica Divona, Cristina Banella, Alessandra Picardi, Anna Maria Cerio, Letizia Boe, Massimo Sanchez, Elvira Pelosi, Ugo Testa, Francesco Lo-Coco, Maria Teresa Voso
Forkhead box (FOX) genes encode transcription factors, which regulate embryogenesis and play an important role in hematopoietic differentiation and in mesenchymal niche maintenance. Overexpression of the family member FOXC1 has been reported in solid tumors and acute myeloid leukemia (AML). We studied FOXC1 expression and function in acute promyelocytic leukemia (APL) and normal hematopoietic progenitors. FOXC1 mRNA and protein levels were significantly lower in primary marrow samples from 27 APL patients, as compared to samples obtained from 27 patients with other AML subtypes, and 5 normal CD34+ hematopoietic cells...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137349/tumor-trp53-status-and-genotype-affect-the-bone-marrow-microenvironment-in-acute-myeloid-leukemia
#19
Rodrigo Jacamo, R Eric Davis, Xiaoyang Ling, Sonali Sonnylal, Zhiqiang Wang, Wencai Ma, Min Zhang, Peter Ruvolo, Vivian Ruvolo, Rui-Yu Wang, Teresa McQueen, Scott Lowe, Johannes Zuber, Steven M Kornblau, Marina Konopleva, Michael Andreeff
The genetic heterogeneity of acute myeloid leukemia (AML) and the variable responses of individual patients to therapy suggest that different AML genotypes may influence the bone marrow (BM) microenvironment in different ways. We performed gene expression profiling of bone marrow mesenchymal stromal cells (BM-MSC) isolated from normal C57BL/6 mice or mice inoculated with syngeneic murine leukemia cells carrying different human AML genotypes, developed in mice with Trp53 wild-type or nullgenetic backgrounds...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137317/mcl-1-stabilization-confers-resistance-to-taxol-in-human-gastric-cancer
#20
Wu Shuang, Lili Hou, Yan Zhu, Qun Li, Wanglai Hu
Taxol has been extensively used as an antineoplastic drug to treat human gastric cancer. However, the acquired drug resistance invariably develops and greatly limits the therapeutic efficacy of Taxol. Identification of the underlying resistance mechanisms may inform the development of new therapies of gastric cancers to Taxol treatment. Here we report that upregulation of Mcl-1 (Myeloid cell leukemia-1) confers acquired resistance to Taxol in human gastric cancer. Mcl-1 is shown to be stabilized in Taxol -resistant gastric cancer cells because of the hyper-activation of the PI3K/Akt signaling pathway...
October 10, 2017: Oncotarget
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