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https://www.readbyqxmd.com/read/28718760/cd25-expression-and-outcomes-in-older-patients-with-acute-myelogenous-leukemia-treated-with-plerixafor-and-decitabine
#1
John N Allan, Gail J Roboz, Gulce Askin, Ellen Ritchie, Joseph Scandura, Paul Christos, Duane C Hassane, Monica L Guzman
We investigated CD25 expression in older (≥60 years) patients with new acute myelogenous leukemia treated with decitabine and plerixafor. Patients resistant to therapy or survival ≤1 year had significantly higher percentages of CD25(pos) myeloid blasts in baseline bone marrow. CD25(pos) patients had an increased odds of resistance compared to CD25(neg) patients (p = .015). In univariate analysis, we found CD25(pos) patients had inferior survival compared to CD25(neg) (p = .002). In patients with intermediate risk cytogenetics, CD25(pos) status stratified patients associating with inferior survival (p = ...
July 18, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28675459/stimulation-of-adrenergic-activity-by-desipramine-enhances-hematopoietic-stem-and-progenitor-cell-mobilization-along-with-g-csf-in-multiple-myeloma-a-pilot-study
#2
Aditi Shastri, Anjali Budhathoki, Stefan K Barta, Noah Kornblum, Olga Derman, Ramakrishna Battini, Radha Ragupathy, Amit Verma, Paul S Frenette, Ira Braunschweig, Murali Janakiram
Hematopoietic stem cell (HSC) release is positively regulated by the sympathetic nervous system through the β3 adrenergic receptor. Preclinical studies have demonstrated that the combination of desipramine and G-CSF resulted in improved HSC mobilization. Here we present the results of an open-label single-arm pilot study in patients with multiple myeloma undergoing autologous stem cell transplantation (ASCT) to assess the safety and efficacy of desipramine combined with G-SCF to induce HSC mobilization. The primary endpoint was safety of the combination including engraftment kinetics...
July 4, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28670693/cxcl12-and-cxcr7-are-relevant-targets-to-reverse-cell-adhesion-mediated-drug-resistance-in-multiple-myeloma
#3
Johannes M Waldschmidt, Anna Simon, Dagmar Wider, Stefan J Müller, Marie Follo, Gabriele Ihorst, Sarah Decker, Joschka Lorenz, Manik Chatterjee, Abdel K Azab, Justus Duyster, Ralph Wäsch, Monika Engelhardt
Cell adhesion-mediated drug resistance (CAM-DR) by the bone marrow (BM) is fundamental to multiple myeloma (MM) propagation and survival. Targeting BM protection to increase the efficacy of current anti-myeloma treatment has not been extensively pursued. To extend the understanding of CAM-DR, we hypothesized that the cytotoxic effects of novel anti-myeloma agents may be abrogated by the presence of BM stroma cells (BMSCs) and restored by addition of the CXCL12 antagonist NOX-A12 or the CXCR4 inhibitor plerixafor...
July 2, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28638088/chemokine-receptor-cxcr4-regulates-camkii-creb-pathway-in-spinal-neurons-that-underlies-cancer-induced-bone-pain
#4
Xue-Ming Hu, Hui Zhang, Heng Xu, Hai-Long Zhang, Li-Ping Chen, Wen-Qiang Cui, Wei Yang, Wen Shen
We previously demonstrated that the chemokine receptor CXCR4 plays an important role in cancer-induced bone pain by activating spinal neurons and glial cells. However, the specific neuronal mechanism of CXCR4 signaling is not clear. We further report that CXCR4 contributes to the activation of the neuronal CaMKII/CREB pathway in cancer-induced bone pain. We used a tumor cell implantation (TCI) model and observed that CXCR4, p-CaMKII and p-CREB were persistently up-regulated in spinal neurons. CXCR4 also co-expressed with p-CaMKII and p-CREB, and mediated p-CaMKII and p-CREB expression after TCI...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28631842/uk-consensus-statement-on-the-use-of-plerixafor-to-facilitate-autologous-peripheral-blood-stem-cell-collection-to-support-high-dose-chemoradiotherapy-for-patients-with-malignancy
#5
Kenneth W Douglas, Maria Gilleece, Patrick Hayden, Hannah Hunter, Peter R E Johnson, Charlotte Kallmeyer, Ram K Malladi, Shankara Paneesha, Rachel Pawson, Michael Quinn, Kavita Raj, Deborah Richardson, Stephen Robinson, Nigel Russell, John Snowden, Anna Sureda, Eleni Tholouli, Kirsty Thomson, Mike Watts, Keith M Wilson
Plerixafor is a CXC chemokine receptor (CXCR4) antagonist that mobilizes stem cells in the peripheral blood. It is indicated (in combination with granulocyte-colony stimulating factor [G-CSF]) to enhance the harvest of adequate quantities of cluster differentiation (CD) 34+ cells for autologous transplantation in patients with lymphoma or multiple myeloma whose cells mobilize poorly. Strategies for use include delayed re-mobilization after a failed mobilization attempt with G-CSF, and rescue or pre-emptive mobilization in patients in whom mobilization with G-CSF is likely to fail...
June 20, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28581475/the-choice-of-in-hospital-or-home-administration-for-plerixafor-injection-to-poor-mobilizers-has-no-adverse-consequence-on-subsequent-hematopoietic-stem-cell-harvest
#6
C Chabannon, F Bijou, J-M Grouin, P Drillat, N Milpied, M Mohty
No abstract text is available yet for this article.
June 5, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28580637/influence-of-plerixafor-on-the-mobilization-of-cd34-cell-subpopulations-and-lymphocyte-subtypes
#7
Nina Worel, Nelli Frank, Christian Frech, Gerhard Fritsch
BACKGROUND: Peripheral blood stem cells mobilized with granulocyte-colony-stimulating factor (G-CSF) with or without chemotherapy are routinely used for autologous hematopoietic cell transplantation. Plerixafor, a chemokine-receptor inhibitor, increases the amount of circulating CD34+ cells and improves harvest results. However, limited information is available regarding the composition of apheresis products with respect to CD34+ and lymphocyte subtypes collected after various mobilization regimens...
June 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28573902/cost-effectiveness-of-on-demand-plerixafor-added-to-chemotherapy-and-granulocyte-colony-stimulating-factor-for-peripheral-blood-stem-cell-mobilization-in-multiple-myeloma
#8
Giuseppe Milone, Massimo Martino, Salvatore Leotta, Andrea Spadaro, Valentina Zammit, Alessandra Cupri, Giuseppe Avola, Maria Grazia Camuglia, Annalia Di Marco, Potito Scalzulli, Mara Morelli, Attilio Olivieri, Giovanni Tripepi
We here report final results of a phase II/III prospective study that evaluated in Multiple Myeloma the use of on-demand plerixafor (PLX) added to mobilizing chemotherapy for patients showing predictive signs of mobilization failure. A total of 111 patients with MM were registered, all received cyclophosphamide 4 g/m(2) and granulocyte colony-stimulating factor (G-CSF). Overall, a successful CD34+ cell mobilization was achieved in 97.2% (108/111) of patients. Minimum harvest (≥2.0 × 10(6) CD34+ cells/kg) was achieved in 97...
June 2, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28556233/poor-peripheral-blood-stem-cell-mobilization-affects-long-term-outcomes-in-multiple-myeloma-patients-undergoing-autologous-stem-cell-transplantation
#9
Jan S Moreb, Michael Byrne, Ilicia Shugarman, Fei Zou, Sican Xiong, William S May, Maxim Norkin, John Hiemenz, Randall Brown, Christopher Cogle, John R Wingard, Jack W Hsu
BACKGROUND: Peripheral blood stem cell (PBSC) mobilization is routinely undertaken prior to autologous stem cell transplantation (ASCT) in patients with multiple myeloma (MM). A number of studies have identified risk factors for poor PBSC mobilization, however, little data exists to correlate mobilization with disease-specific outcomes in this patient population. Prospective work in MM has demonstrated similar outcomes in a homogenous patient population. METHODS: In this single institution analysis, we retrospectively studied the impact of poor PBSC mobilization on progression free survival (PFS) and OS in MM patients undergoing PBSC mobilization...
May 29, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28530669/addition-of-plerixafor-to-g-csf-is-useful-to-achieve-efficient-collection-even-in-very-poor-mobilizers-hope-for-patients-with-diminished-hematopoietic-function
#10
M Mohty, P Drillat, J-M Grouin, F Bijou, N Milpied, C Chabannon
No abstract text is available yet for this article.
May 22, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28527129/efficacy-and-safety-of-plerixafor-for-the-mobilization-collection-of-peripheral-hematopoietic-stem-cells-for-autologous-transplantation-in-japanese-patients-with-multiple-myeloma
#11
Masaki Ri, Kosei Matsue, Kazutaka Sunami, Chihiro Shimazaki, Akio Hayashi, Yoshinori Sunaga, Toru Sasaki, Kenshi Suzuki
To evaluate the efficacy and safety of plerixafor for the mobilization/collection of peripheral hematopoietic stem cells (HSCs) for autologous transplantation in Japanese patients with multiple myeloma (MM). In a randomized study, patients received G-CSF (filgrastim, 400 µg/m(2)/day) for 4 days prior to the first dose of plerixafor. Starting on Day 4 evening and for up to 4 days, patients received either plerixafor (240 µg/kg/day) + G-CSF group (PG group) or G-CSF alone (G group). Daily apheresis started on Day 5 for up to 4 days, or until ≥6 × 10(6) CD34+ cells/kg were collected...
May 19, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28496091/mobilization-of-hematopoietic-stem-cells-for-hematopoietic-cells-autologous-transplantation-with-use-of-plerixafor
#12
Krzysztof Gawroński, Piotr Rzepecki, Waldemar Sawicki, Jarosław Wajs
BACKGROUND To increase the number of circulating hematopoietic stem cells (HSC) in the blood, mobilization treatments are currently being used. G-CSF and G-CSF plus chemotherapy are the most common methods of hematopoietic stem cells separation used in Poland. MATERIAL AND METHODS We observed patients who failed an effective hematopoietic stem cell mobilization with G-CSF or with G-CSF plus chemotherapy. The separation was considered unsuccessful if within a period of 4 consecutive days of separation, the number of obtained CD 34+ cells was lower than 2...
May 12, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28495640/sources-of-hematopoietic-stem-and-progenitor-cells-and-methods-to-optimize-yields-for-clinical-cell-therapy
#13
REVIEW
Sandhya R Panch, James Szymanski, Bipin N Savani, David F Stroncek
Bone marrow (BM) aspirates, mobilized peripheral blood, and umbilical cord blood (UCB) have developed as graft sources for hematopoietic stem and progenitor cells (HSPCs) for stem cell transplantation and other cellular therapeutics. Individualized techniques are necessary to enhance graft HSPC yields and cell quality from each graft source. BM aspirates yield adequate CD34(+) cells but can result in relative delays in engraftment. Granulocyte colony-stimulating factor (G-CSF)-primed BM HSPCs may facilitate faster engraftment while minimizing graft-versus-host disease in certain patient subsets...
August 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28485045/performance-and-safety-of-femoral-central-venous-catheters-in-pediatric-autologous-peripheral-blood-stem-cell-collection
#14
Laura Cooling, Sandra Hoffmann, Dawn Webb, Chisa Yamada, Robertson Davenport, Sung Won Choi
INTRODUCTION: Autologous peripheral blood hematopoietic progenitor cell collection (A-HPCC) in children typically requires placement of a central venous catheter (CVC) for venous access. There is scant published data regarding the performance and safety of femoral CVCs in pediatric A-HPCC. METHODS: Seven-year, retrospective study of A-HPCC in pediatric patients collected between 2009 and January 2017. Inclusion criteria were an age ≤ 21 years and A-HPCC using a femoral CVC for venous access...
May 9, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28476490/phase-i-ii-study-of-intravenous-plerixafor-added-to-a-mobilization-regimen-of-granulocyte-colony-stimulating-factor-in-lymphoma-patients-undergoing-autologous-stem-cell-collection
#15
Amanda F Cashen, Michael Rettig, Feng Gao, Angela Smith, Camille Abboud, Keith Stockerl-Goldstein, Ravi Vij, Geoffrey Uy, Peter Westervelt, John DiPersio
Plerixafor, given subcutaneously with granulocyte colony-stimulating factor (G-CSF), improves autologous stem cell collection in patients with lymphoma and multiple myeloma. Intravenous (i.v.) administration of plerixafor allows administration of plerixafor on the same day as pheresis and it may improve stem cell collection. The primary objectives of this phase I/II study were to determine the maximum tolerated dose of i.v. plerixafor and the efficacy of i.v. plerixafor + G-CSF to mobilize ≥ 2 × 10(6) CD34(+) cells/kg from patients with lymphoma...
August 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28455878/impact-of-plerixafor-mozobil-on-hospital-efficiency-a-single-center-experience
#16
Nabih Azar, Maya Ouzegdouh, Sylvain Choquet, Véronique Leblond
Plerixafor (Mozobil) in combination with granulocyte colony-stimulating factor (G-CSF) has shown to increase mobilization of peripheral blood stem cells (PBSC) as compared to G-CSF alone in patients undergoing autologous stem cell transplantation (ASCT). However, up to 25% of patients treated with G-CSF alone still fail mobilization. Adding plerixafor to poor mobilizers allows to rescue these patients from mobilization failure and to reduce the number of apheresis sessions. The goal of this retrospective study was to capture the impact of plerixafor on treatment outcome and on apheresis department efficiency...
April 28, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28434928/hyperfractionated-cyclophosphamide-vincristine-doxorubicin-and-dexamethasone-chemotherapy-in-mantle-cell-lymphoma-patients-is-associated-with-higher-rates-of-hematopoietic-progenitor-cell-mobilization-failure-despite-plerixafor-rescue
#17
Amandeep Salhotra, Yuan Shan, Ni-Chun Tsai, James F Sanchez, Ibrahim Aldoss, Haris Ali, Tanya Paris, Ricardo Spielberger, Thai M Cao, Auayporn Nademanee, Stephen J Forman, Robert Chen
Induction regimens for mantle cell lymphoma (MCL) can be categorized into highly intensive regimens containing cytarabine and less intense regimens, such as rituximab, cyclophosphamide, hydroxydaunorubicin, vincristine, and prednisone (R-CHOP) or rituximab with bendamustine (R-bendamustine). Prior publications have shown rituximab and hyperfractionated cyclophosphamide, vincristine, doxorubicin, and dexamethasone (R-hyperCVAD) can be associated with stem cell mobilization failures. However, those studies did not include the use of plerixafor as rescue for stem cell mobilization failure...
August 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28411174/evaluation-of-hematopoietic-stem-cell-mobilization-rates-with-early-plerixafor-administration-for-adult-stem-cell-transplantation
#18
Jessica T Stover, J Ryan Shaw, Maragatha Kuchibhatla, Mitchell E Horwitz, Ashley M Engemann
The addition of plerixafor to high-dose colony-stimulating growth factor has been shown to improve stem cell mobilization rates in autologous transplant patients with multiple myeloma and non-Hodgkin lymphoma. This study evaluates the change in administration time of plerixafor to determine if cell mobilization rates are similar between the US Food and Drug Administration-approved administration time of 11 hours before apheresis and an earlier administration time of 16 hours before apheresis. Medical records of patients age ≥ 18 years undergoing autologous stem cell transplantation requiring the use of plerixafor after at least 4 days of granulocyte colony-stimulating factor therapy to complete stem cell mobilization from January 1, 2010 through September 30, 2014 were retrospectively reviewed...
August 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28409853/a-phase-1-study-of-the-cxcr4-antagonist-plerixafor-in-combination-with-high-dose-cytarabine-and-etoposide-in-children-with-relapsed-or-refractory-acute-leukemias-or-myelodysplastic-syndrome-a-pediatric-oncology-experimental-therapeutics-investigators-consortium
#19
Todd M Cooper, Edward Allan Racela Sison, Sharyn D Baker, Lie Li, Amina Ahmed, Tanya Trippett, Lia Gore, Margaret E Macy, Aru Narendran, Keith August, Michael J Absalon, Jessica Boklan, Jessica Pollard, Daniel Magoon, Patrick A Brown
BACKGROUND: Plerixafor, a reversible CXCR4 antagonist, inhibits interactions between leukemic blasts and the bone marrow stromal microenvironment and may enhance chemosensitivity. A phase 1 trial of plerixafor in combination with intensive chemotherapy in children and young adults with relapsed or refractory acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), and myelodysplastic syndrome (MDS) was performed to determine a tolerable and biologically active dose. PROCEDURE: Plerixafor was administered daily for 5 days at four dose levels (6, 9, 12, and 15 mg/m(2) /dose) followed 4 hr later by high-dose cytarabine (every 12 hr) and etoposide (daily)...
April 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28370401/cyclophosphamide-based-stem-cell-mobilization-in-relapsed-multiple-myeloma-patients-a-subgroup-analysis-from-the-phase-iii-trial-relapse
#20
Marc-Andrea Baertsch, Jana Schlenzka, Katharina Lisenko, Julia Krzykalla, Natalia Becker, Katja Weisel, Richard Noppeney, Hans Martin, Hans W Lindemann, Mathias Haenel, Axel Nogai, Christof Scheid, Hans Salwender, Roland Fenk, Ullrich Graeven, Peter Reimer, Martin Schmidt-Hieber, Martin Goerner, Ingo G H Schmidt-Wolf, Stefan Klein, Anthony D Ho, Hartmut Goldschmidt, Patrick Wuchter
OBJECTIVE: Analysis of the efficiency and toxicity of cyclophosphamide-based stem cell mobilization in patients with relapsed multiple myeloma (RMM). METHODS: Peripheral blood stem cells (PBSCs) were mobilized with high dose cyclophosphamide (2 g/m(2) daily on days 1 and 2) and G-CSF plus pre-emptive/rescue plerixafor in RMM patients (first to third relapse) treated within the ReLApsE trial of the German-Speaking Myeloma Multicenter Group (GMMG). RESULTS: Mobilization was initiated with high-dose cyclophosphamide (HD-CY) and G-CSF in 30 patients...
March 31, 2017: European Journal of Haematology
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