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https://www.readbyqxmd.com/read/29777009/feasibility-of-cxcr4-directed-radioligand-therapy-in-advanced-diffuse-large-b-cell-lymphoma
#1
Constantin Lapa, Heribert Hänscheid, Malte Kircher, Andreas Schirbel, Gerd Wunderlich, Rudolf Werner, Samuel Samnick, Jörg Kotzerke, Hermann Einsele, Andreas Buck, Hans-Jürgen Wester, Götz Ulrich Grigoleit
We have recently reported on our experience with C-X-C-motif chemokine receptor 4- (CXCR4-) directed radioligand therapy (RLT) in multiple myeloma and acute leukemia. Methods: Six patients with heavily pre-treated relapsed diffuse large B cell lymphoma (DLBCL) (3 males, 3 females; aged, 54±8 years) underwent CXCR4-directed RLT in combination with conditioning chemotherapy and allogeneic stem cell transplantation (SCT). In 2 patients, radioimmunotherapy (RIT) targeting CD20 or CD66 was added to enhance anti-lymphoma activity...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29775645/mesenchymal-stromal-cells-induce-a-permissive-state-in-the-bone-marrow-that-enhances-g-csf-induced-hematopoietic-stem-cell-mobilization-in-mice
#2
Evert-Jan F M de Kruijf, Rob Zuijderduijn, Marjolein C Stip, Willem E Fibbe, Melissa van Pel
Mesenchymal stromal cells (MSC) support hematopoietic stem cells (HSC) in vivo and enhance HSC engraftment and hematopoietic recovery upon co-transplantation with HSC. These data have led to the hypothesis that MSC may impact the HSC niche, leading to changes in HSC retention and trafficking. We studied the effect of MSC administration on the HSC compartment in the bone marrow (BM) in mice. Following injection of MSC, HSC numbers in the BM were decreased coinciding with an increased cell cycle activity compared to PBS-injected controls...
May 15, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29772458/phenotyping-and-target-expression-profiling-of-cd34-cd38-and-cd34-cd38-stem-and-progenitor-cells-in-acute-lymphoblastic-leukemia
#3
Katharina Blatt, Ingeborg Menzl, Gregor Eisenwort, Sabine Cerny-Reiterer, Harald Herrmann, Susanne Herndlhofer, Gabriele Stefanzl, Irina Sadovnik, Daniela Berger, Alexandra Keller, Alexander Hauswirth, Gregor Hoermann, Michael Willmann, Thomas Rülicke, Heinz Sill, Wolfgang R Sperr, Christine Mannhalter, Junia V Melo, Ulrich Jäger, Veronika Sexl, Peter Valent
Leukemic stem cells (LSCs) are an emerging target of curative anti-leukemia therapy. In acute lymphoblastic leukemia (ALL), LSCs frequently express CD34 and often lack CD38. However, little is known about markers and targets expressed in ALL LSCs. We have examined marker- and target expression profiles in CD34+ /CD38- LSCs in patients with Ph+ ALL (n = 22) and Ph- ALL (n = 27) by multi-color flow cytometry and qPCR. ALL LSCs expressed CD19 (B4), CD44 (Pgp-1), CD123 (IL-3RA), and CD184 (CXCR4) in all patients tested...
May 14, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29772350/unmanipulated-haploidentical-hematopoietic-stem-cell-transplantation-achieved-outcomes-comparable-with-matched-unrelated-donor-transplantation-in-young-acquired-severe-aplastic-anemia
#4
Yue Lu, Rui-Juan Sun, Yan-Li Zhao, Min Xiong, Xing-Yu Cao, Jing-Pin Zhang, Zhi-Jie Wei, Jia-Rui Zhou, De-Yan Liu, Dao-Pei Lu
Salvage haploidentical HSCT is considered in patients with severe aplastic anemia (SAA) if matched unrelated donor (MUD) is unavailable. However, studies on haplo- and MUD transplantation in SAA are yet lacking. The present study retrospectively analyzed the outcomes of 89 young SAA patients who underwent unmanipulated alternative hematopoietic stem cell transplantation (HSCT) between September 2012 and September 2016 at our single center. 41 patients received haploidentical donors, and 48 patients received MUD for HSCT...
May 14, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29771921/mosquito-saliva-alone-has-profound-effects-on-the-human-immune-system
#5
Megan B Vogt, Anismrita Lahon, Ravi P Arya, Alexander R Kneubehl, Jennifer L Spencer Clinton, Silke Paust, Rebecca Rico-Hesse
Mosquito saliva is a very complex concoction of >100 proteins, many of which have unknown functions. The effects of mosquito saliva proteins injected into our skin during blood feeding have been studied mainly in mouse models of injection or biting, with many of these systems producing results that may not be relevant to human disease. Here, we describe the numerous effects that mosquito bites have on human immune cells in mice engrafted with human hematopoietic stem cells. We used flow cytometry and multiplex cytokine bead array assays, with detailed statistical analyses, to detect small but significant variations in immune cell functions after 4 mosquitoes fed on humanized mice footpads...
May 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29770308/allo-and-auto-percutaneous-intra-portal-pancreatic-islet-transplantation-pipit-for-diabetes-cure-and-prevention-the-role-of-imaging-and-interventional-radiology
#6
REVIEW
Massimo Venturini, Claudio Sallemi, Paolo Marra, Anna Palmisano, Giulia Agostini, Carolina Lanza, Gianpaolo Balzano, Massimo Falconi, Antonio Secchi, Paolo Fiorina, Lorenzo Piemonti, Paola Maffi, Antonio Esposito, Francesco De Cobelli, Alessandro Del Maschio
Although the life expectancy of patients with type 1 diabetes mellitus (T1DM) has improved since the introduction of insulin therapy, the acute life-threatening and long-term complications from diabetes mellitus are significant causes of both mortality and morbidity. Percutaneous intra-portal pancreatic islet transplantation (PIPIT) is a minimally invasive, repeatable procedure which allows a β-cell replacement therapy through a liver islet engraftment, leading to insulin release and glycaemic control restoration in patients with diabetes...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29770299/regenerative-medicine-therapy-for-single-ventricle-congenital-heart-disease
#7
REVIEW
Chetan Ambastha, Gregory J Bittle, David Morales, Nathaniel Parchment, Progyaparamita Saha, Rachana Mishra, Sudhish Sharma, Alexander Vasilenko, Muthukumar Gunasekaran, Manal T Al-Suqi, Deqiang Li, Peixin Yang, Sunjay Kaushal
One of the most complex forms of congenital heart disease (CHD) involving single ventricle physiology is hypoplastic left heart syndrome (HLHS), characterized by underdevelopment of the left ventricle (LV), mitral and aortic valves, and narrowing of the ascending aorta. The underdeveloped LV is incapable of providing long-term systemic flow, and if left untreated, the condition is fatal. Current treatment for this condition consists of three consecutive staged palliative operations: the first is conducted within the first few weeks of birth, the second between 4 to 6 months, and the third and final surgery within the first 4 years...
April 2018: Translational Pediatrics
https://www.readbyqxmd.com/read/29770133/peripheral-blood-stem-cell-mobilization-in-healthy-donors-by-granulocyte-colony-stimulating-factor-causes-preferential-mobilization-of-lymphocyte-subsets
#8
Guro Kristin Melve, Elisabeth Ersvaer, Geir Egil Eide, Einar K Kristoffersen, Øystein Bruserud
Background: Allogeneic hematopoietic stem cell transplantation is associated with a high risk of immune-mediated post-transplant complications. Graft depletion of immunocompetent cell subsets is regarded as a possible strategy to reduce this risk without reducing antileukemic immune reactivity. Study design and methods: We investigated the effect of hematopoietic stem cell mobilization with granulocyte colony-stimulating factor (G-CSF) on peripheral blood and stem cell graft levels of various T, B, and NK cell subsets in healthy donors...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29769244/a-cs1-nkg2d-bispecific-antibody-collectively-activates-cytolytic-immune-cells-against-multiple-myeloma
#9
Wing Keung Chan, Siwen Kang, Youssef Youssef, Erin N Glankler, Emma R Barrett, Alex M Carter, Elshafa H Ahmed, Aman Prasad, Luxi Chen, Jianying Zhang, Don M Benson, Michael A Caligiuri, Jianhua Yu
Multiple myeloma (MM) is an incurable hematological malignancy of plasma cells with an estimated 30,000 new cases diagnosed each year in the United States, signifying the need for new therapeutic approaches. We hypothesized that targeting MM using a bispecific antibody (biAb) to simultaneously engage both innate and adaptive cytolytic immune cells could present potent antitumor activity. We engineered a biAb by fusing an anti-CS1 single chain variable fragment (scFv) and an anti-NKG2D scFv (CS1-NKG2D biAb)...
May 16, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29769208/infusion-of-alloanergized-donor-lymphocytes-after-cd34-selected-haploidentical-myeloablative-hematopoietic-stem-cell-transplantation
#10
Jeff K Davies, Lisa L Brennan, John Wingard, Christopher R Cogle, Neena Kapoor, Ami J Shah, Bimalangshu R Dey, Thomas R Spitzer, Marcos De Lima, Laurence Jn Cooper, Peter Thall, Richard E Champlin, Lee M Nadler, Eva C Guinan
PURPOSE: Allogeneic haematopoietic stem-cell transplantation (HSCT) is a curative treatment for many haematologic cancers. Use of haploidentical (mismatched) donors increases HSCT availability but is limited by severe graft-versus-host disease (GvHD) and delayed immune reconstitution. Alloanergization of donor T-cells is a simple approach to rebuild immunity whilst limiting GvHD after haploidentical HSCT but the optimal T-cell dose and impact on immune reconstitution remain unknown.  Experimental Design: We performed a multicentre Phase 1 trial of alloanergized donor lymphocyte infusion (aDLI) after CD34-selected myeloablative haploidentical HSCT...
May 16, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29767291/bioengineered-scaffolds-for-stem-cell-applications-in-tissue-engineering-and-regenerative-medicine
#11
Maryam Rahmati, Cristian Pablo Pennisi, Ali Mobasheri, Masoud Mozafari
Stem cell-based therapies, harnessing the ability of stem cells to regenerate damaged or diseased tissues, are under wide-ranging consideration for regenerative medicine applications. However, limitations concerning poor cell persistence and engraftment upon cell transplantation still remain. During the recent years, several types of biomaterials have been investigated to control the fate of the transplanted stem cells, aiming to increase their therapeutic efficiency. In the present chapter we focus on the general properties of some of these biomaterials, which include polymers, ceramics, and nano-biomaterials...
May 17, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29764770/haploidentical-stem-cell-transplantation-bone-marrow-vs-peripheral-blood
#12
REVIEW
Zafer Gulbas
Hematopoietic stem cells may be obtained by collection of bone marrow, mobilization and collection of peripheral blood stem cells or umbilical cord blood. Transplantation of peripheral blood hematopoietic cells has increased due to faster engraftment and practicability in both the related, unrelated or haploidentical setting. We reviewed the question of which stem cell source - bone marrow (BM) or peripheral blood (PBSC) - is the most suitable for individuals undergoing haploidentical stem cell transplantation...
April 19, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29763891/endothelial-progenitor-cells-and-kidney-diseases
#13
Abdullah Ozkok, Alaattin Yildiz
Endothelial progenitor cells (EPC) are bone marrow derived or tissue-resident cells that play major roles in the maintenance of vascular integrity and repair of endothelial damage. Although EPCs may be capable of directly engrafting and regenerating the endothelium, the most important effects of EPCs seem to be depended on paracrine effects. In recent studies, specific microvesicles and mRNAs have been found to mediate the pro-angiogenic and regenerative effects of EPCs on endothelium. EPC counts have important prognostic implications in cardiovascular diseases (CVD)...
May 10, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29763550/selective-inhibition-of-the-myeloid-src-family-kinase-fgr-potently-suppresses-aml-cell-growth-in-vitro-and-in-vivo
#14
Mark C Weir, Sherry T Shu, Ravi K Patel, Sabine Hellwig, Li Chen, Li Tan, Nathanael S Gray, Thomas E Smithgall
Acute myelogenous leukemia (AML) is the most common hematologic malignancy in adults, and is often associated with constitutive tyrosine kinase signaling. These pathways involve the non-receptor tyrosine kinases Fes, Syk and the three Src-family kinases expressed in myeloid cells (Fgr, Hck, and Lyn). In this study, we report remarkable anti-AML efficacy of an N-phenylbenzamide kinase inhibitor, TL02-59. This compound potently suppressed the proliferation of bone marrow samples from twenty of twenty-six AML patients, with a striking correlation between inhibitor sensitivity and expression levels of the myeloid Src family kinases Fgr, Hck, and Lyn...
May 15, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29762163/transcriptional-gene-silencing-limits-cxcr4-associated-depletion-of-bone-marrow-cd34-cells-in-hiv-1-infection
#15
Tetsuo Tsukamoto
OBJECTIVES: Hematological abnormalities that include changes in bone marrow, such as in anemia and pancytopenia, are common among human immunodeficiency virus (HIV)-infected patients, particularly in the advanced stage of disease. Such abnormalities may be caused by a reduced bone marrow function for hematopoiesis. This aim of this study was to determine whether transcriptional gene silence can help to preserve the hosts' hematopoietic potential in addition to peripheral CD4 T cells against CCR5-tropic HIV infection...
May 11, 2018: AIDS
https://www.readbyqxmd.com/read/29761072/sezary-syndrome-manifesting-as-posttransplant-lymphoproliferative-disorder
#16
Thanh-Phuong Afiat, Xiaohui Zhang, Hailing Zhang, Ernesto Ayala, Ling Zhang, Lubomir Sokol
Posttransplant lymphoproliferative disorders (PTLDs) of T-cell orgin are rare biologically heterogeneous diseases of mature lymphoid cells manifesting in immunosuppressed patients. Only a few cases of mycosis fungoides diagnosed post allogeneic hematopoietic cell transplant (alloHSCT) have been described so far. We present a patient with myelodysplastic syndrome (MDS) post matched unrelated donor alloHSCT who was on long-term immunosuppressive therapy due to graft versus host disease. Three years after an alloHSCT, she developed generalized erythroderma and peripheral blood lymphocytosis...
2018: Leukemia Research Reports
https://www.readbyqxmd.com/read/29760162/unrelated-cord-blood-transplantation-in-patients-with-acquired-refractory-aplastic-anemia-a-nationwide-phase-ii-study
#17
Regis Peffault de Latour, Sylvie Chevret, Charlotte Jubert, Anne Sirvent, Claire Galambrun, Annalisa Ruggeri, Virginie Gandemer, Jérôme Cornillon, Fanny Rialland, Jean-Hugues H Dalle, Edouard Forcade, Benedicte Bruno, Catherine Paillard, Pierre S Rorlich, Alexandra Salmon, Sabine Fürst, Flore Sicre de Fontbrune, Marie Therese Rubio, Jacques-Olivier Bay, Mohamad Mohty, Jerome Larghero, Eliane Gluckman, Gerard Socié
Outcomes remain poor for patients with refractory severe aplastic anemia (SAA). Alternative donor transplantation may be considered, but results from previous studies have not been encouraging. We conducted a prospective nationwide phase II study to assess the efficacy and safety of unrelated cord blood transplantation (CBT) in patients with refractory SAA (APCORD protocol, NCT 01343953). To demonstrate a significant difference in one-year survival from 20% (null hypothesis) to 50% (alternative hypothesis), we needed to include 25 transplanted patients...
May 14, 2018: Blood
https://www.readbyqxmd.com/read/29757276/fluorescence-molecular-tomography-for-in-vivo-imaging-of-glioblastoma-xenografts
#18
Jorge A Benitez, Ciro Zanca, Jianhui Ma, Webster K Cavenee, Frank B Furnari
Tumorigenicity is the capability of cancer cells to form a tumor mass. A widely used approach to determine if the cells are tumorigenic is by injecting immunodeficient mice subcutaneously with cancer cells and measuring the tumor mass after it becomes visible and palpable. Orthotopic injections of cancer cells aim to introduce the xenograft in the microenvironment that most closely resembles the tissue of origin of the tumor being studied. Brain cancer research requires intracranial injection of cancer cells to allow the tumor formation and analysis in the unique microenvironment of the brain...
April 26, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29756328/serum-derived-carcinoembryonic-antigen-cea-activates-fibroblasts-to-induce-a-local-re-modeling-of-the-extracellular-matrix-that-favors-the-engraftment-of-cea-expressing-tumor-cells
#19
Aws Abdul-Wahid, Marzena Cydzik, Nicholas W Fischer, Aaron Prodeus, John E Shively, Anne Martel, Samira Alminawi, Zeina Ghorab, Neil L Berinstein, Jean Gariépy
Elevated levels of the carcinoembryonic antigen (CEA; CEACAM5) in the serum of colorectal cancer (CRC) patients represent a clinical biomarker that correlates with disease recurrence. However, a mechanistic role for soluble CEA (sCEA) in tumor progression and metastasis remains to be established. In this study, we report that sCEA acts as a paracrine factor, activating human fibroblasts by signalling through both the STAT3 and AKT1-mTORC1 pathways, promoting their transition to a cancer-associated fibroblast (CaF) phenotype...
May 14, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29753839/platelet-transfusion-refractoriness-in-single-unit-cord-blood-transplantation-for-adults-risk-factors-and-clinical-outcomes
#20
Susumu Tanoue, Takaaki Konuma, Seiko Kato, Maki Oiwa-Monna, Masamichi Isobe, Koji Jimbo, Satoshi Takahashi, Arinobu Tojo
Platelet transfusion refractoriness (PTR) is frequently observed after allogeneic hematopoietic cell transplantation (HCT). However, the incidence of and risk factors for PTR, and impact of PTR on transplant outcomes after cord blood transplantation (CBT) have not been fully investigated. We retrospectively analyzed 185 adult patients who received single-unit CBT in our institute. The mean 16-hour corrected count increment (CCI) for the 5,840 platelet transfusions was 3.68×109 /l. Among them, 3,196 transfusions (54...
May 10, 2018: Biology of Blood and Marrow Transplantation
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