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Jones JM, Kiss JE, Chibisov I, Horvei P, Stanczak H, Burda C, Clark W, Sevcik J, Kilonsky C, Kaplan A. Effective peripheral blood stem cell collection in a 4.6-kg child. Transfusion 2024; 64:400-405. [PMID: 38155507 DOI: 10.1111/trf.17687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/31/2023] [Accepted: 11/27/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND Due to unique technical challenges, effective peripheral blood stem cell collections (PBSCs) have not been consistently reported in patients weighing less than 5 kg. We describe three PBSCs performed in a 4.6-kg child undergoing myeloablative chemotherapy for high-grade glioma. STUDY DESIGN AND METHODS A multidisciplinary group representing the clinical and apheresis teams adapted a PBSC protocol to accommodate the patient's size and collection targets. Special considerations included timing of the collection relative to chemotherapy, vascular access, strategies for monitoring adverse events during collection, and contingencies. RESULTS AND DISCUSSION The patient underwent three PBSC procedures over 2 days due to suboptimal collection after the first two procedures. For procedure 1, a conservative inlet: anticoagulant (AC) ratio and AC infusion rate of 15 and 0.6 mL/min/L total blood volume (TBV) resulted in premature discontinuation due to clotting. A ratio of 8 and AC infusion rate of 1.5-1.7 mL/min/L TBV with subsequent titration to higher levels were adopted for the second and third procedures. These changes resulted in greater acid-citrate-dextrose exposure, that was managed by continuous calcium chloride infusion. There was no hypocalcemia, hypotension, or distress during any procedure. A total of 15 × 106 CD34+ cells/kg were collected. This retrospective review illustrates that PBSC can be safely undertaken in children weighing less than 5 kg.
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Affiliation(s)
- Jennifer M Jones
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
| | - Joseph E Kiss
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Irina Chibisov
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
| | - Paulina Horvei
- Division of Blood and Marrow Transplantation and Cellular Therapies, University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Heather Stanczak
- Division of Blood and Marrow Transplantation and Cellular Therapies, University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Carol Burda
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
| | - Wei Clark
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
| | - Joan Sevcik
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
| | - Carolyn Kilonsky
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
| | - Alesia Kaplan
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
- Vitalant Specialty Lab and Therapeutics, Pittsburgh, Pennsylvania, USA
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2
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Iriondo J, Zubicaray J, Sebastián E, González de Pablo J, González-Vicent M, Molina B, López-Torija I, Castillo A, Ramírez M, Madero L, Díaz MÁ, Sevilla J. Mobilization with high-dose granulocyte colony-stimulating factor alone at 12 μg/kg twice a day in high-risk pediatric patients: A retrospective analysis of the experience in a single center. J Clin Apher 2022; 37:420-429. [PMID: 35662241 DOI: 10.1002/jca.21994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 04/15/2022] [Accepted: 05/17/2022] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Mobilization regimes in pediatric patients at high risk for poor mobilization are not standardized across different institutions. We present a retrospective analysis of our experience with a high-dose granulocyte colony-stimulating factor (G-CSF) regime of 12 μg/Kg per body weight (BW) twice a day for 4 days used in high-risk patients. MATERIAL AND METHODS We report the results of all pediatric patients mobilized with high-dose G-CSF between January 1999 and February 2021 in our center. A successful mobilization was defined as a peripheral blood (PB) CD34+ cell count of ≥10 CD34+ cells/μl on the fifth day of mobilization immediately before leukapheresis. A minimum cell yield of ≥2 × 106 CD34+ cells/Kg of BW was required for a successful collection. RESULTS Of the 262 patients included in the analysis, mobilization failure was found in 27 (10.3%). In a univariate analysis, this was associated with age, weight, baseline diagnosis, and having undergone a previous mobilization cycle, the latter being the only factor that remained significantly associated in a multivariate analysis (P = 0.03). The 54 patients (20.6%) did not reach the minimum required CD34+ cell yield. 50.4% of the patients reported adverse events (AEs) during the mobilization period, and 23 (9.1%) reported 3 or more concomitant AEs. However, all of them were mild and did not affect the mobilization schedule. CONCLUSIONS Although most high-risk pediatric patients are successfully mobilized with the high-dose G-CSF regime, this approach does not salvage all of them and significantly increases the presence of AEs in comparison to standard-dose regimes.
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Affiliation(s)
- June Iriondo
- Hematology and Hemotherapy Unit, Hematology and Oncology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain
| | - Josune Zubicaray
- Hematology and Hemotherapy Unit, Hematology and Oncology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain
| | - Elena Sebastián
- Hematology and Hemotherapy Unit, Hematology and Oncology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain
| | - Jesús González de Pablo
- Hematology and Hemotherapy Unit, Hematology and Oncology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain
| | - Marta González-Vicent
- Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematopoietic Stem Cell Transplantation Unit, Pediatric Hematology and Oncology department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Blanca Molina
- Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematopoietic Stem Cell Transplantation Unit, Pediatric Hematology and Oncology department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Ivan López-Torija
- Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematopoietic Stem Cell Transplantation Unit, Pediatric Hematology and Oncology department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Ana Castillo
- Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematology and Oncology Laboratory Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Manuel Ramírez
- Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematology and Oncology Laboratory Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Luis Madero
- Hematology and Hemotherapy Unit, Hematology and Oncology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematopoietic Stem Cell Transplantation Unit, Pediatric Hematology and Oncology department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Hematology and Oncology Laboratory Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Miguel Ángel Díaz
- Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain.,Hematopoietic Stem Cell Transplantation Unit, Pediatric Hematology and Oncology department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Julián Sevilla
- Hematology and Hemotherapy Unit, Hematology and Oncology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Fundación para la Investigación Biomédica Hospital Infantil Universitario, Niño Jesús, Madrid, Spain
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3
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Goto H, Kanamori R, Nishina S, Seto T. Plerixafor stem cell mobilization in Japanese children: A post-marketing study. Pediatr Int 2022; 64:e15106. [PMID: 35396889 PMCID: PMC9323438 DOI: 10.1111/ped.15106] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/14/2021] [Accepted: 12/23/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND Plerixafor is approved in Japan for hematopoietic stem cell mobilization prior to autologous transplant, but limited data are available on the use in children. This study evaluates the safety and effectiveness of plerixafor in Japanese children aged <15 years. METHODS A multicenter, post-marketing surveillance study was conducted in Japan to evaluate the safety and effectiveness of plerixafor in routine clinical practice. This subgroup analysis examined the safety and effectiveness of plerixafor administered as a once-daily, subcutaneous injection in children aged <15 years. The primary effectiveness outcome was the proportion of patients with 2 × 106 cells CD34+ cells/kg collected via apheresis within 4 days. RESULTS Eighteen patients with solid tumors were included in this analysis; (median age 6.0 years, range, 1-13 years). In addition to granulocyte colony-stimulating factor, all patients had received chemotherapy immediately prior to plerixafor administration. The mean (SD) daily dose of plerixafor was 0.24 (0.01) mg/kg. Seven of the 18 patients (38.9%) developed adverse drug reactions (ADRs), all occurring in patients aged ≥6 years and weighing ≥16 kg. The most common ADRs were pyrexia (n = 4), vomiting (n = 3), nausea (n = 2), and abdominal pain (n = 2). Twelve patients (66.7%) achieved a CD34+ cell count ≥2 × 106 cells/kg within 4 days after the start of plerixafor administration. CONCLUSIONS The results provide an encouraging sign that plerixafor 0.24 mg/kg may be safe and effective in pediatric patients in routine clinical practice in Japan, but further research in larger studies is needed.
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Affiliation(s)
- Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Rie Kanamori
- Sanofi Genzyme Medical, Oncology Medical, Sanofi K.K., Tokyo, Japan
| | - Satoshi Nishina
- Medical Affairs, Post-Authorization Regulatory Studies, Sanofi K.K., Tokyo, Japan
| | - Takashi Seto
- Medical Affairs, Post-Authorization Regulatory Studies, Sanofi K.K., Tokyo, Japan
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4
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Koo J, Teusink-Cross A, Davies SM, Jodele S, Dandoy CE. Single-center results reporting improved hematopoietic stem cell mobilization success in pediatric and young adult patients with solid tumors and lymphoma. Pediatr Blood Cancer 2021; 68:e29319. [PMID: 34490994 DOI: 10.1002/pbc.29319] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND High-dose chemotherapy with autologous hematopoietic stem cell transplantation (auto-HSCT) is an established treatment for pediatric and young adult patients with solid tumors and lymphomas. Plerixafor is a CXC chemokine receptor type 4 (CXCR4) antagonist that can be used with granulocyte colony stimulating factor (G-CSF) to amplify the mobilization of hematopoietic stem cells (HSCs). METHODS We performed a retrospective analysis of 167 pediatric solid tumor and lymphoma patients from January 2010 to July 2020 in whom HSCs were mobilized using G-CSF alone or with plerixafor. RESULTS Thirteen heavily pretreated patients (33.3%) required twice-daily dosing of G-CSF compared to five patients (3.9%) in the not heavily pretreated group (p = .0005). Fourteen heavily pretreated patients (35.9%) required plerixafor compared to four patients (3.1%) in the comparison cohort (p = .0002). The number of mobilization days was similar between both cohorts, with 5 days (range 3-11 days) in the heavily pretreated group and 5 days (range 3-13 days) in the not heavily pretreated group (p = .55). The number of harvest days was 2 days (range 1-5 days) in the heavily pretreated group and 1 day (range 1-4 days) in the not heavily pretreated group (p = .0025). The final cluster of differentiation (CD)34+ /kilogram (kg) count was 9.52 × 106 /kg among heavily pretreated patients compared to 34.99 × 106 /kg CD34+ cells in the comparison group (p < .0001). Three heavily pretreated patients (7.7%) failed HSC mobilization. CONCLUSIONS Patients at the highest risk for poor HSC mobilization can be successfully treated with more frequent G-CSF dosing or G-CSF with plerixafor in a large majority of cases.
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Affiliation(s)
- Jane Koo
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Ashley Teusink-Cross
- Division of Pharmacy, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Stella M Davies
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sonata Jodele
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Christopher E Dandoy
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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5
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Bhunia N, Abu-Arja R, Stanek JR, Mehyar LS, Shaw PJ, Kang HJ, Stein J, O'Brien TA, Roberts CH, Lee ACW, Loeb DM, Ozkaynak MF, Dalal JD, Strahlendorf C, Goyal RK, Shenoy SS, Rangarajan HG. A multicenter report on the safety and efficacy of plerixafor based stem cell mobilization in children with malignant disorders. Transfusion 2021; 61:894-902. [PMID: 33475172 DOI: 10.1111/trf.16260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pleraxifor for peripheral blood stem cell (PBSC) mobilization in children with malignancies is often given following failure of standard mobilization (SM) rather than as a primary mobilizing agent. STUDY DESIGN AND METHODS In this retrospective multicenter study, we report the safety of plerixafor-based PBSC mobilization in children with malignancies and compare outcomes between patients who received plerixafor upfront with SM (Group A) with those who received plerixafor following failure of SM (Group B). In the latter pleraxifor was given either following a low peripheral blood (PB) CD34 (<20 cells/cu.mm) (Group B1) or as a second collection process due to an unsuccessful yield (CD34 + < 2 × 106 /kg) (Group B2) following failed SM and first apheresis attempts. RESULTS The study cohort (n = 47) with a median age of 8 (range 0.6-21) year, comprised 19 (40%) Group A and 28 (60%) Group B patients (B1 = 12 and B2 = 16). Pleraxifor mobilization was successful in 87.2% of patients, similar between Groups A and B (84.2% vs 89.2%) and resulted in a median 4-fold increase in PB CD34. Median number of apheresis attempts was 2 in Groups A and B1 but 4 in Group B2. In Group B2, median total CD34+ yield post-plerixafor was 9-fold higher than after SM (P = .0013). Mild to moderate transient adverse events affected 8.5% of patients. Among patients who proceeded to autologous transplant (n = 39), all but one engrafted. CONCLUSION Plerixafor-based PBSC collection was safe and effective in our cohort and supports consideration as a primary mobilizing agent in children with malignancies.
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Affiliation(s)
- Nabanita Bhunia
- Division of Hematology, Oncology, Blood and Bone Marrow Transplant, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Rolla Abu-Arja
- Division of Hematology, Oncology, Blood and Bone Marrow Transplant, Nationwide Children's Hospital, Columbus, Ohio, USA
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Joseph R Stanek
- Division of Hematology, Oncology, Blood and Bone Marrow Transplant, Nationwide Children's Hospital, Columbus, Ohio, USA
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Lubna S Mehyar
- Division of Hematology, Oncology, Blood and Bone Marrow Transplant, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Peter J Shaw
- Department of Oncology, The Children's Hospital at Westmead, Sydney, New South Wales, Australia
| | - Hyoung Jin Kang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Cancer Research Institute, Seoul National University Children's Hospital, Seoul, Korea
| | - Jerry Stein
- Hemato-Oncology Department, Schneider Children's Medical Center of Israel, Petach Tivka, Israel
| | - Tracey A O'Brien
- Centre for Children's Cancer, Sydney Children's Hospital, Sydney, New South Wales, Australia
| | - Catherine H Roberts
- Massey Cancer Center Bone Marrow Transplant, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Anselm Chi-Wai Lee
- Children's Hematology & Cancer Center, Mount Elizabeth Hospital, Singapore
| | - David M Loeb
- Oncology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Mehmet F Ozkaynak
- Pediatric Hematology/Oncology, New York Medical College, Vallhalla, New York, USA
| | | | | | - Rakesh K Goyal
- Pediatric Hematology/Oncology, UPMC, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Shalini S Shenoy
- Pediatric Hematology/Oncology, Washington University School of Medicine, St Louis, Missouri, USA
| | - Hemalatha G Rangarajan
- Division of Hematology, Oncology, Blood and Bone Marrow Transplant, Nationwide Children's Hospital, Columbus, Ohio, USA
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio, USA
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6
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Chen J, Lazarus HM, Dahi PB, Avecilla S, Giralt SA. Getting blood out of a stone: Identification and management of patients with poor hematopoietic cell mobilization. Blood Rev 2020; 47:100771. [PMID: 33213986 DOI: 10.1016/j.blre.2020.100771] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 07/15/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022]
Abstract
Hematopoietic cell transplantation (HCT) has become a primary treatment for many cancers. Nowadays, the primary source of hematopoietic cells is by leukapheresis collection of these cells from peripheral blood, after a forced egress of hematopoietic cells from marrow into blood circulation, a process known as "mobilization". In this process, mobilizing agents disrupt binding interactions between hematopoietic cells and marrow microenvironment to facilitate collection. As the first essential step of HCT, poor mobilization, i.e. failure to obtain a desired or required number of hematopoietic cell, is one of the major factors affecting engraftment or even precluding transplantation. This review summarizes the available mobilization regimens using granulocyte-colony stimulating factor (G-CSF) and plerixafor, as well as the current understanding of the factors that are associated with poor mobilization. Strategies to mobilize patients or healthy donors who failed previous mobilization are discussed. Multiple novel agents are under investigation and some of them have shown the potential to enhance the mobilization response to G-CSF and/or plerixafor. Further investigation of the risk factors including genetic factors will offer an opportunity to better understand the molecular mechanism of mobilization and help develop new therapeutic strategies for successful mobilizations.
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Affiliation(s)
- Jian Chen
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States; Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX, United States
| | - Hillard M Lazarus
- Department of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Parastoo B Dahi
- Department of Medicine, Bone Marrow Transplant Service, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Scott Avecilla
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Sergio A Giralt
- Department of Medicine, Bone Marrow Transplant Service, Memorial Sloan Kettering Cancer Center, New York, NY, United States.
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7
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Golay H, Jurkovic Mlakar S, Mlakar V, Nava T, Ansari M. The Biological and Clinical Relevance of G Protein-Coupled Receptors to the Outcomes of Hematopoietic Stem Cell Transplantation: A Systematized Review. Int J Mol Sci 2019; 20:E3889. [PMID: 31404983 PMCID: PMC6719093 DOI: 10.3390/ijms20163889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 01/04/2023] Open
Abstract
Hematopoietic stem cell transplantation (HSCT) remains the only curative treatment for several malignant and non-malignant diseases at the cost of serious treatment-related toxicities (TRTs). Recent research on extending the benefits of HSCT to more patients and indications has focused on limiting TRTs and improving immunological effects following proper mobilization and engraftment. Increasing numbers of studies report associations between HSCT outcomes and the expression or the manipulation of G protein-coupled receptors (GPCRs). This large family of cell surface receptors is involved in various human diseases. With ever-better knowledge of their crystal structures and signaling dynamics, GPCRs are already the targets for one third of the current therapeutic arsenal. The present paper assesses the current status of animal and human research on GPCRs in the context of selected HSCT outcomes via a systematized survey and analysis of the literature.
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Affiliation(s)
- Hadrien Golay
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Simona Jurkovic Mlakar
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Vid Mlakar
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Tiago Nava
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland
- Department of Women-Children-Adolescents, Division of General Pediatrics, Pediatric Onco-Hematology Unit, Geneva University Hospitals (HUG), Avenue de la Roseraie 64, 1205 Geneva, Switzerland
| | - Marc Ansari
- Platform of Pediatric Onco-Hematology research (CANSEARCH Laboratory), Department of Pediatrics, Gynecology, and Obstetrics, University of Geneva, Bâtiment La Tulipe, Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
- Department of Women-Children-Adolescents, Division of General Pediatrics, Pediatric Onco-Hematology Unit, Geneva University Hospitals (HUG), Avenue de la Roseraie 64, 1205 Geneva, Switzerland.
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8
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Abstract
Apheresis procedures are standard of care for a wide range of indications in children, collection of hematopoietic stem cells being the most frequent one. With increasing numbers of hematopoietic stem cell transplants, advances in graft manipulation techniques and the development of innovative therapies using immune effector cells and gene therapy, apheresis within the pediatric population is growing in demand. While young children have higher circulating white blood cell counts and robustly mobilize hematopoietic stem cells, apheresis machines were designed for use within the adult population and apheresis procedures in children, particularly small children, can be more challenging as vascular access, collection techniques and impact of extracorporeal volumes increase the rate of adverse events. In this article we review topics of particular relevance to hematopoietic stem cell and immune effector cell collections in small children.
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