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Apheresis Yield

Maryou Bk Lambros, George Seed, Semini Sumanasuriya, Veronica Gil, Mateus Crespo, Mariane Sousa Fontes, Rob Chandler, Niven Mehra, Gemma Fowler, Berni Ebbs, Penelope Ruth Flohr, Susana Miranda, Wei Yuan, Alan Mackay, Ana Ferreira, Rita Pereira, Claudia Bertan, Ines Figueiredo, Ruth Riisnaes, Daniel Nava Rodrigues, Adam Sharp, Jane Goodall, Gunther Boysen, Suzanne Carreira, Diletta Bianchini, Pasquale Rescigno, Zafeiris Zafeiriou, Joanne Hunt, Deirdre Moloney, Lucy Hamilton, Rui P L Neves, Joost F Swennenhuis, Kiki C Andree, Nikolas H Stoecklein, Leon Wmm Terstappen, Johann S de Bono
PURPOSE: Circulating tumor cells (CTCs) have clinical relevance, but their study has been limited by their low frequency. EXPERIMENTAL DESIGN: We evaluated liquid biopsies by apheresis to increase CTC yield from patients suffering from metastatic prostate cancer, allow precise gene copy number calls, and study disease heterogeneity. RESULTS: Apheresis was well-tolerated and allowed the separation of large numbers of CTCs; the average CTC yield from 7...
August 9, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Catherine Ravanat, Arnaud Dupuis, Nadine Marpaux, Christian Naegelen, Guillaume Mourey, Herve Isola, Michel Laforêt, Pascal Morel, Christian Gachet
BACKGROUND AND OBJECTIVES: Small batch-pooled (mini-pool) whole blood (WB)-derived plasma could be an alternative cost-effective source of therapeutic plasma (TP), but carries an increased risk of transfusion-transmitted infection due to exposure of the recipient to several donors. This risk can be mitigated by inactivation of pathogens susceptible to the amotosalen-UVA (AUVA)-treatment. We evaluated the conservation of coagulation factors in AUVA-plasma prepared from WB stored overnight under routine operating conditions, to determine its therapeutic efficacy...
August 6, 2018: Vox Sanguinis
Raphael Teipel, Uta Oelschlägel, Katrin Wetzko, Maria Schmiedgen, Michael Kramer, Elke Rücker-Braun, Kristina Hölig, Malte von Bonin, Katharina Heidrich, Anke Fuchs, Rainer Ordemann, Frank Kroschinsky, Martin Bornhäuser, Gero Hütter, Helmuth Schmidt, Gerhard Ehninger, Johannes Schetelig, Falk Heidenreich
This study was conducted to characterize and compare peripheral blood stem cell grafts from healthy donors who underwent granulocyte colony-stimulating factor (G-CSF) mobilization and subsequently received 1 dose of plerixafor after insufficient stem cell yields were achieved at the first apheresis. Aliquots from 35 donors were collected from the first apheresis after mobilization with G-CSF alone and from the second apheresis after additional plerixafor administration. Samples were freshly analyzed for cellular subsets by 8-color flow cytometry...
June 21, 2018: Biology of Blood and Marrow Transplantation
Krzysztof Bartnik, Martyna Maciejewska, Roiya Farhan, Elżbieta Urbanowska, Małgorzata Król, Maria Król, Magdalena Feliksbrot, Wiesław Wiktor-Jędrzejczak, Emilian Snarski
BACKGROUND: Recently, novel protocol utilizing Continuous Mononuclear Cell Collection (cMNC) have been introduced for leukapheresis. We compared the efficacy of cMNC with an older protocol - mononuclear cell collection (MNC) for CD34+ cell collection in unrelated donors with negative stem cell collection predictors. MATERIAL AND METHODS: Retrospective data from a series of 258 consecutive unrelated hematopoietic stem cell donors was included in this single-center study (80 donors collected with cMNC and 178 with MNC)...
June 2018: Transfusion and Apheresis Science
Arne Knörck, Stefanie Marx, Kim S Friedmann, Sylvia Zöphel, Lisa Lieblang, Carmen Hässig, Isabelle Müller, Jan Pilch, Urban Sester, Markus Hoth, Hermann Eichler, Martina Sester, Eva C Schwarz
BACKGROUND: Research with primary human white blood cell (WBC) subpopulations requires high quantity, quality, and functionality of peripheral blood mononuclear cells (PBMCs) as a source to further characterize cellular subpopulations such as T and B lymphocytes, monocytes, or natural killer cells. Apart from buffy coats derived from whole blood, residual blood from preparative hemapheresis kits are used as a source for PBMCs, but knowledge on the yield and functionality of cells from different devices is limited...
June 2018: Transfusion
S Bashir, A Meli, R Cardigan
BACKGROUND AND OBJECTIVES: Two of the predictive factors of the quality of small volumes of platelets suitable for paediatric use are bag size and material. This study evaluated the storage properties of paediatric platelet aliquots in TOTM-, BTHC- or DINCH-PVC bags. METHODS/MATERIALS: (i) Three apheresis platelet concentrates (PC) were pooled and split into three units. One was retained as an adult unit (control; polyolefin bag). The second and third units were split into four MacoPharma TOTM-PVC and BTHC-PVC paediatric bags, respectively...
April 11, 2018: Transfusion Medicine
Soumya Pandey, Michele Cottler-Fox
PURPOSE: We evaluated the Optia® continuous mononuclear collection (CMNC) system for hematopoietic progenitor cell-apheresis (HPC-A) collection (Terumo BCT, Lakewood, CO) compared to the COBE® Spectra (Terumo BCT, Lakewood, CO), including both large volume leukapheresis (LVL) and non-LVL collections. METHODS: We performed a retrospective data analysis of all autologous HPC-A collections with the Optia® CMNC system (n = 93; LVL = 59, non-LVL = 34) since implementation at our institution and compared it with a similar number of concurrent collections utilizing the COBE® Spectra (n = 96; LVL = 68, non-LVL = 28)...
March 30, 2018: Journal of Clinical Apheresis
Lori Muffly, Kevin Sheehan, Randall Armstrong, Kent Jensen, Keri Tate, Andrew R Rezvani, David Miklos, Sally Arai, Judith Shizuru, Laura Johnston, Everett Meyer, Wen-Kai Weng, Ginna G Laport, Robert S Negrin, Sam Strober, Robert Lowsky
Murine models showed that CD8+ CD44hi memory T (TM ) cells could eradicate malignant cells without inducing graft-versus-host disease (GVHD). We evaluated the feasibility and safety of infusing freshly isolated and purified donor-derived phenotypic CD8+ TM cells into adults with disease relapse after allogeneic hematopoietic cell transplantation (HCT). Phenotypic CD8 TM cells were isolated after unmobilized donor apheresis using a tandem immunomagnetic selection strategy of CD45RA depletion followed by CD8+ enrichment...
March 27, 2018: Blood Advances
Nelly Besson, Mie Topholm Bruun, Thomas Stauffer Larsen, Christian Nielsen
Success of peripheral blood stem cell (PBSC) collections depends on patient biological parameters and stable apheresis device performance. We investigated product quality and factors influencing main apheresis procedure outcomes including CD34+ collection efficiency (CE), product volume or platelet CE. We also assessed different CD34+ cell yield prediction algorithms. Autologous PBSC collections by Spectra Optia from myeloma and lymphoma patients were analyzed. Complete blood count (CBC) from patient preprocedure and from collected products were assessed...
March 23, 2018: Journal of Clinical Apheresis
Christine Contini, Martin Jansen, Brigitte König, Filiz Markfeld-Erol, Mirjam Kunze, Stefan Zschiedrich, Ulrich Massing, Irmgard Merfort, Heinrich Prömpeler, Ulrich Pecks, Karl Winkler, Gerhard Pütz
BACKGROUND: Preeclampsia is a life-threatening disease in pregnancy, and its complex pathomechanisms are poorly understood. In preeclampsia, lipid metabolism is substantially altered. In late onset preeclampsia, remnant removal disease like lipoprotein profiles have been observed. Lipid apheresis is currently being explored as a possible therapeutic approach to prolong preeclamptic pregnancies. Here, apheresis-induced changes in serum lipid parameters are analyzed in detail and their implications for preeclamptic lipid metabolism are discussed...
March 14, 2018: Lipids in Health and Disease
Jiaqiang Ren, Dawn Ward, Steven Chen, Katherine Tran, Ping Jin, Marianna Sabatino, Pamela G Robey, David F Stroncek
BACKGROUND: Bone marrow stromal cells (BMSCs) have classically been cultured in media supplemented with fetal bovine serum (FBS). As an alternative to FBS, pooled solvent detergent apheresis platelets, HPGF-C18, was evaluated for BMSC culture. METHODS: A comparison of passage 2 BMSC growth revealed that 10% HPGF-C18 produced similar cell numbers as 20% FBS. Marrow aspirates from 5 healthy subjects were cultured for 4 passages in 10% HPGF-C18 or 20% FBS and were analyzed for proliferation, colony formation efficiency (CFE), surface marker expression, suppression of mixed lymphocyte reactions (MLRs), global gene and microRNA expression analysis...
March 14, 2018: Journal of Translational Medicine
T Wang, M Remberger, U Axdorph Nygell, M Sundin, A Björklund, J Mattsson, M Uhlin, E Watz
BACKGROUND: The composition of the graft used for allogeneic hematopoietic stem cell transplantation (HSCT) is important for the treatment outcome. Different apheresis devices may yield significant differences in peripheral blood stem cell graft cellular composition. We compared stem cell grafts produced by Cobe Spectra (Cobe) and Spectra Optia (Optia) with use of the mononuclear cell (MNC) protocol, and evaluated clinical outcome parameters such as graft-versus-host disease (GvHD), transplant-related mortality (TRM), relapse, and overall survival...
June 2018: Transfusion
Rena Hirani, James Peberdy, Phillip Mondy
BACKGROUND: For Australian apheresis platelet donations, in-centre haematology analysers provided the platelet count used to program the platelet collection machines. When the haematology analysers were not functional, historical platelet counts from previous donations were used. This study aimed to confirm that the routine use of historical platelet counts for programming apheresis collection machines would maintain platelet yields within the donated units and that haematology analysers could be removed...
April 2018: Transfusion and Apheresis Science
Chong Chyn Chua, Hui Yin Lim, Khai Li Chai, Jeremy Ong, Shirlene Sim, Colin Wood, Michael Dickinson, Philip Campbell, Jennifer Hempton, Hayley King, Claire Dowsing, Krystal Bergin, Sharon Muir, Simon Gibbs, Andrew Grigg
Bortezomib-based induction is often used in transplant-eligible patients with myeloma. The optimal peripheral blood stem cell (PBSC) mobilisation strategy in this context is unclear. We reviewed the efficacy of G-CSF alone (G-alone) vs. G-CSF and cyclophosphamide (G-cyclo: standard dose: 1.5-2 g/m2 ; high dose: 3-4 g/m2 ) PBSC mobilisation strategies in 288 patients who only received bortezomib, cyclophosphamide and dexamethasone (VCD) induction prior to autograft across six apheresis centres from November 2012 to June 2017...
March 9, 2018: Bone Marrow Transplantation
Yan Hong, Xiang-Yu Zhao, Xing-Xing Yu, Zhi-Lei Bian, Ying-Jun Chang, Yu Wang, Xiao-Hui Zhang, Lan-Ping Xu, Xiao-Jun Huang, Xiao-Su Zhao
INTRODUCTION: Invariant natural killer T cells (iNKTs) are a rare but vital subset of immunomodulatory T cells and play an important role in allogeneic hematopoietic stem cell trans-plantation (HSCT). The association of donor characteristics with the number and frequency of the iNKTs subsets in allografts remains poorly understood. In this paper, we prospectively investigate the association of donor characteristics with iNKTs dose and frequency in granulocyte-colony-stimulating factor (G-CSF) mobilized marrow and peripheral blood harvests...
June 2018: Transplant Immunology
Araci M Sakashita, Andrea T Kondo, Ana Paula H Yokoyama, Sanny M C Lira, Carolina B Bub, Aline M Souza, Andrea N F Cipolletta, Kelen C Alvarez, Nelson Hamerschlak, Jose M Kutner, Carlos S Chiattone
BACKGROUND: Autologous peripheral blood hematopoietic stem cell (PBSC) collection efficiency (CE) is reportedly affected by the patient's blood properties; however, studies to identify factors correlated with CE have shown inconsistent results. Additionally, variables such as stem cell graft granulocyte content and patient age, sex, and underlying disease, may be associated with hematopietic stem cell (HSC) infusion-related adverse reactions. In this study, we evaluated the correlation of preleukapheresis PB granulocyte count and PBSC harvest variables with CD34+ collection yield and efficiency, and thawed HSC infusion side effect occurrence...
January 19, 2018: Journal of Clinical Apheresis
Ömür Kayıkçı, Emre Tekgündüz, Ali Hakan Kaya, Hakan Göker, Alma Aslan, Dicle İskender, Sinem Namdaroglu, Aysegul Tetik, Şerife Koçubaba, Fevzi Altuntaş
Biosimilar filgrastim (Leucostim® ) was shown to be similar in terms of efficacy and safety in hematopoietic progenitor cell mobilization (HPCM) compared to originator filgrastim (Neupogen® ) and lenograstim (Granocyte® ) in healthy donors and chemomobilization settings. Here we report our retrospective experience with Leucostim® (n: 43) compared to Neupogen® (n: 71) and Granocyte® (n: 32) in steady-state mobilization of patients presenting with Hodgkin lymphoma, non-Hodgkin lymphoma and multiple myeloma...
December 2017: Transfusion and Apheresis Science
Gülsün Karasu, Vedat Uygun, Akif Yesilipek
BACKGROUND AND OBJECTIVES: Although several studies have reported on the use of children as donors for peripheral blood stem cells (PBSC), data on the predictive factors of CD34+ stem cell yield in healthy pediatric donors are very limited. DESIGN AND METHOD: We retrospectively analyzed factors predicting the yield for a target CD34 cell dose of >3×106 /kg recipient body weight in 140 apheresis in 100 healthy pediatric donors. The donors were evaluated in four groups assigned according to their ages of being 0-4 years, 5-9 years, 10-14 years and 15-18 years...
December 2017: Transfusion and Apheresis Science
Muzaffer Keklik, Ertugrul Keklik, Ugur Kalan, Ozerhan Ozer, Ferhat Arik, Murat Sarikoc
The use of apheresis equipment to collect platelets has rapidly increased in recent years. We compared two apheresis instruments (Haemonetics MCS + and Trima Accel) with regard to platelet (PLT) yield and efficiency, and collection rate (CR) in a retrospective study. Overall 120 data obtained by Haemonetics and Trima systems (N = 60 for each) were randomly selected among 400 plateletpheresis procedures performed at the Apheresis Unit of Kayseri Education and Research Hospital between July 2016 and January 2017...
February 2018: Therapeutic Apheresis and Dialysis
Ugur Sahin, Taner Demirer
Multiple myeloma (MM) is the leading indication of autologous hematopoietic stem cell transplantation (AHSCT) worldwide. The collection of PBSCs is the essential step for AHSCT. The limits for minimum and optimum CD34(+) cells collected have been accepted as 2 × 10(6) /kg and ≥4 × 10(6) /kg for single AHSCT; 4 × 10(6) /kg and ≥8-10 × 10(6) /kg for double AHSCT. Despite the success of conventional methods for PBSC mobilization in MM, mobilization failure is still a concern depending on patient age, duration of disease, and the type of induction therapy...
October 5, 2017: Journal of Clinical Apheresis
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