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Gencer EB, Akin HY, Toprak SK, Turasan E, Yousefzadeh M, Yurdakul-Mesutoglu P, Cagan M, Seval MM, Katlan DC, Dalva K, Beksac MS, Beksac M. In vivo and in vitro effects of cord blood hematopoietic stem and progenitor cell (HSPC) expansion using valproic acid and/or nicotinamide. Curr Res Transl Med 2024; 72:103444. [PMID: 38447268 DOI: 10.1016/j.retram.2024.103444] [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: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND High self-renewal capacity and most permissive nature of umbilical cord blood (CB) results with successful transplant outcomes but low hematopoietic stem and progenitor cell (HSPC) counts limits wider use. In order to overcome this problem ex vivo expansion with small molecules such as Valproic acid (VPA) or Nicotinamide (NAM) have been shown to be effective. To the best of our knowledge, the combinatory effects of VPA and NAM on HSPC expansion has not been studied earlier. The aim of this study was to analyze ex vivo and in vivo efficacy of VPA and NAM either alone or in combination in terms of expansion and engraftment. METHODS A total of 44 CB units were included in this study. To determine the ex vivo and in vivo efficacy, human CB CD34+ cells were expanded with VPA and/or NAM and colony forming unit (CFU) assay was performed on expanded HSPC. Xenotransplantation was performed simultaneously by intravenous injection of expanded HSPC to NOD-SCID gamma (NSG) mice (n = 22). Significance of the difference between the expansion groups or xenotransplantation models was analyzed using t-test, Mann-Whitney, ANOVA or Kruskal-Wallis tests as appropriate considering the normality of distributions and the number of groups analyzed. RESULTS In vitro CD34+ HSPC expansion fold relative to cytokines-only was significantly higher with VPA compared to NAM [2.23 (1.07-5.59) vs 1.48 (1.00-4.40); p < 0.05]. Synergistic effect of VPA+NAM has achieved a maximum relative expansion fold at 21 days (D21) of incubation [2.95 (1.00-11.94)]. There was no significant difference between VPA and VPA+NAM D21 (p = 0.44). Fold number of colony-forming unit granulocyte-macrophage (CFU-GM) colonies relative to the cytokine-only group was in favor of NAM compared to VPA [1.87 (1.00-3.59) vs 1.00 (1.00-1.81); p < 0.01]. VPA+NAM D21 [1.62 (1.00-2.77)] was also superior against VPA (p < 0.05). There was no significant difference between NAM and VPA+NAM D21. Following human CB34+ CB transplantation (CBT) in the mouse model, fastest in vivo leukocyte recovery was observed with VPA+NAM expanded cells (6 ± 2 days) and the highest levels of human CD45 chimerism was detectable with VPA-expanded CBT (VPA: 5.42 % at day 28; NAM: 2.45 % at day 31; VPA+NAM 1.8 % at day 31). CONCLUSION Our study results suggest using VPA alone, rather than in combination with NAM or NAM alone, to achieve better and faster expansion and engraftment of CB HSPC.
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Affiliation(s)
| | - Hasan Yalim Akin
- Ankara University Faculty of Medicine Cord Blood Bank, Ankara, Turkey; Middle East Technical University, Department of Biochemistry, Ankara, Turkey
| | - Selami Kocak Toprak
- Ankara University Faculty of Medicine Cord Blood Bank, Ankara, Turkey; Ankara University Faculty of Medicine Department of Hematology, Ankara, Turkey
| | - Eylul Turasan
- Ankara University Faculty of Medicine Cord Blood Bank, Ankara, Turkey
| | - Mahsa Yousefzadeh
- Ankara University Faculty of Medicine Cord Blood Bank, Ankara, Turkey; Ankara University Stem Cell Institute, Ankara, Turkey
| | | | - Murat Cagan
- Hacettepe University Faculty of Medicine Department of Obstetrics and Gynecology, Ankara, Turkey
| | - Mehmet Murat Seval
- Ankara University Faculty of Medicine Department of Obstetrics and Gynecology, Ankara, Turkey
| | - Doruk Cevdi Katlan
- Istanbul Training and Research Hospital Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - Klara Dalva
- Ankara University Stem Cell Institute, Ankara, Turkey
| | - Mehmet Sinan Beksac
- Hacettepe University Faculty of Medicine Department of Obstetrics and Gynecology, Ankara, Turkey; Istinye University, Ankara Liv Hospital, Obstetrics and Gynecology, Ankara, Turkey
| | - Meral Beksac
- Ankara University Faculty of Medicine Department of Hematology, Ankara, Turkey; Istinye University, Ankara Liv Hospital, Hematology and Stem Cell Transplantation Unit Ankara, Turkey.
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Kandekar S, Punatar S, Khattry N, Gokarn A, Jindal N, Mirgh S, Chichra A, Tembhare P, Rane P, Gawde J, Mathew L, Patil A, Chiplunkar S, Kode J. Low levels of CD26 on certain cellular subtypes of donor harvest is associated with better clinical outcomes post allogeneic stem cell transplantation through regulation of NF-κB pathway and pro-inflammatory cytokines. Int Immunopharmacol 2023; 125:111054. [PMID: 37890379 DOI: 10.1016/j.intimp.2023.111054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND We had previously reported significant association of immunoectoenzyme CD26 expression on donor harvest with acute Graft-versus-Host-Disease (aGVHD) in allogeneic stem cell transplantation (ASCT) patients. The current study was aimed at analysing CD26 signaling pathway molecules and understanding their impact on immune reconstitution and clinical outcomes post-ASCT. SUBJECTS AND METHODOLOGY The study cohort included 26 transplant donors/patients who underwent reduced intensity (n = 21), myeloablative (n = 4) and non-myeloablative (n = 1) ASCT for hematological malignancies. Donors were matched related donors (n = 19) and haploidentical donors (n = 7). Surface expression of CD26, CD73 and ADA, and various immune cell subtypes were assessed by multicolour-flow cytometry. Soluble CD26 (sCD26) and cytokine levels were measured in plasma samples by ELISA and Multiplex Luminex assay, respectively. Immune cells from healthy individuals were stimulated with phytohemagglutinin (PHA) in the presence or absence of CD26 inhibitor. Effect of CD26 inhibition on NF-κB localization in PHA stimulated cells was analysed by immunofluorescence and confocal microscopy. Pro-inflammatory cytokines from the culture supernatants were detected with Cytometric bead array flow cytometry. Association of all measured markers with clinical outcomes was evaluated using appropriate statistical tests. RESULTS CD26 surface expression on PBSC donor harvest cells showed increased risk of chronic GVHD (cGVHD, p = 0.055). Amongst the various immune cell subtypes, decreased B cells in harvest showed significant association with aGVHD (p = 0.022) whereas increased myeloid dendritic cells and CD3+T cells at Day100 in peripheral blood of transplant recipients correlated with cGVHD (p = 0.046) and aGVHD (p = 0.035), respectively. Further, high sCD26 in transplant recipients at Day100 exhibited association with reduced event-free survival (EFS) (p = 0.011). Higher CD26 expression on more & less mature NK cells, naïve & post-switched memory B cells and Treg cells in the donor harvest (p < 0.05) led to lower EFS in transplant recipients. Mechanistically, CD26 inhibitor caused dose-dependent reduction in CD26 enzyme activity and in pro-inflammatory cytokine production in post mitogen-stimulated T cell cultures. CONCLUSION Our study has implicated that lower CD26 expression on immune cell subtypes of the donor stem cell harvest is associated with reduced risk of GVHD and better survival. The underlying mechanism was found to be through NF-κB pathway and pro-inflammatory cytokines. Based on these observations, chemically designed or natural resources-based CD26 inhibitors can be explored further in clinical trials for improving ASCT outcomes.
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Affiliation(s)
- Shruti Kandekar
- Kode Lab, Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Sachin Punatar
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Navin Khattry
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Anant Gokarn
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Nishant Jindal
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Sumeet Mirgh
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Akanksha Chichra
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Prashant Tembhare
- Hematopathology Lab, Clinical Research Centre, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Pallavi Rane
- Clinical Research Secretariat, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India
| | - Jitendra Gawde
- Clinical Research Secretariat, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India
| | - Libin Mathew
- Stem Cell Transplant Unit, Department of Medical Oncology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India
| | - Anand Patil
- Department of Clinical Pharmacology, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Shubhada Chiplunkar
- Chiplunkar Lab, Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Jyoti Kode
- Kode Lab, Tumor Immunology & Immunotherapy Group, Advanced Centre for Treatment, Research & Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute (HBNI), Training School Complex, Anushakti Nagar, Mumbai 400094, India.
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Nlrp3 Inflammasome Signaling Regulates the Homing and Engraftment of Hematopoietic Stem Cells (HSPCs) by Enhancing Incorporation of CXCR4 Receptor into Membrane Lipid Rafts. Stem Cell Rev Rep 2021; 16:954-967. [PMID: 32661868 PMCID: PMC7456406 DOI: 10.1007/s12015-020-10005-w] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fast and efficient homing and engraftment of hematopoietic stem progenitor cells (HSPCs) is crucial for positive clinical outcomes from transplantation. We found that this process depends on activation of the Nlrp3 inflammasome, both in the HSPCs to be transplanted and in the cells in the recipient bone marrow (BM) microenvironment. For the first time we provide evidence that functional deficiency in the Nlrp3 inflammasome in transplanted cells or in the host microenvironment leads to defective homing and engraftment. At the molecular level, functional deficiency of the Nlrp3 inflammasome in HSPCs leads to their defective migration in response to the major BM homing chemoattractant stromal-derived factor 1 (SDF-1) and to other supportive chemoattractants, including sphingosine-1-phosphate (S1P) and extracellular adenosine triphosphate (eATP). We report that activation of the Nlrp3 inflammasome increases autocrine release of eATP, which promotes incorporation of the CXCR4 receptor into membrane lipid rafts at the leading surface of migrating cells. On the other hand, a lack of Nlrp3 inflammasome expression in BM conditioned for transplantation leads to a decrease in expression of SDF-1 and danger-associated molecular pattern molecules (DAMPs), which are responsible for activation of the complement cascade (ComC), which in turn facilitates the homing and engraftment of HSPCs.
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Selich A, Ha TC, Morgan M, Falk CS, von Kaisenberg C, Schambach A, Rothe M. Cytokine Selection of MSC Clones with Different Functionality. Stem Cell Reports 2019; 13:262-273. [PMID: 31303506 PMCID: PMC6700478 DOI: 10.1016/j.stemcr.2019.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 06/07/2019] [Accepted: 06/10/2019] [Indexed: 12/26/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) are used in many clinical applications. However, ex vivo expansion is required to reach clinically relevant cell numbers, which might lead to selection of clones with different characteristics. To follow clonal selection, we transduced MSC progenitors in umbilical cord pieces (UCPs) with vectors encoding fluorescent proteins and genetic barcodes. After marked MSC cultures grew out from UCPs, we investigated the influence of cytokines on MSC functionality. Specific cytokine conditions selected for clones from common progenitors. MSC secretome analyses revealed differences dependent on the culture conditions used. Clones expanded in human serum containing culture medium secreted a plethora of growth factors. When expanded in the same medium containing TGF-β, MSCs secreted negligible amounts of cytokines but at the same time led to an increased human chimerism after hematopoietic stem cell transplantation into immunodeficient mice. Our results suggest a major influence of cytokine additives on MSC functionality.
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Affiliation(s)
- Anton Selich
- Institute of Experimental Hematology, Hannover Medical School, Building J11, Level 01, Room 6540, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany
| | - Teng-Cheong Ha
- Institute of Experimental Hematology, Hannover Medical School, Building J11, Level 01, Room 6540, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; Integrated Research and Treatment Center Transplantation (IFB-Tx), 30625 Hannover, Germany
| | - Michael Morgan
- Institute of Experimental Hematology, Hannover Medical School, Building J11, Level 01, Room 6540, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; Integrated Research and Treatment Center Transplantation (IFB-Tx), 30625 Hannover, Germany; REBIRTH Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany
| | - Christine S Falk
- Integrated Research and Treatment Center Transplantation (IFB-Tx), 30625 Hannover, Germany; REBIRTH Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Institute of Transplant Immunology, Hannover Medical School, 30625 Hannover, Germany
| | | | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, Building J11, Level 01, Room 6540, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; Integrated Research and Treatment Center Transplantation (IFB-Tx), 30625 Hannover, Germany; REBIRTH Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany; Division of Hematology/Oncology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Michael Rothe
- Institute of Experimental Hematology, Hannover Medical School, Building J11, Level 01, Room 6540, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; REBIRTH Cluster of Excellence, Hannover Medical School, 30625 Hannover, Germany.
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Galel D, Crisostomo C, Ortega J, Peters K, Neveu S, Davila C, Barlow J. Nucleated red blood cells as a novel indicator of CD34 + cell content in umbilical cord blood. Transfusion 2018; 59:681-685. [PMID: 30537299 DOI: 10.1111/trf.15080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/15/2018] [Accepted: 10/22/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Umbilical cord blood (UCB) has become an important source of transplantable CD34+ hematopoietic progenitor cells. Cord blood banks (CBBs) can increase their efficiency by minimizing the processing of UCB units with low CD34+ content, which have a lower likelihood of transplant utilization. We sought to identify a readily available preprocessing metric that would correlate with CD34+ cell counts, without the cost of additional analysis. STUDY DESIGN AND METHODS Data were compiled for 131 UCB units processed at the regional CBB. Preprocessing hematologic metrics, including complete blood count and differential, were compared to postprocessing CD34+ cell quantities. The data were divided into six groups of varying preprocessing metrics, then compared for significant differences in postprocessing CD34+ cell quantities to develop a screening guidance. RESULTS UCB units with nucleated RBC (nRBC) content of 15% or greater were found to have a significant increase in CD34+ cell percentage (p < 0.00001) and total CD34+ cell content (p < 0.0001). Units with preprocessing total nucleated cell count (TNC) of ≥ 1.50 × 109 with nRBC content of 15% or greater, and for TNC ≥ of 2.00 × 109 with nRBC content less than15%, had a significant increase in CD34+ content (p < 0.05 and p < 0.001, respectively). Applied as a screening guideline, these units had an increase in mean CD34+ content from 6.24 × 106 to 9.27 × 106 . Units originally in the bottom and top quartiles of CD34+ content constitute 5% and 53% of processed units meeting these TNC/nRBC criteria, respectively. CONCLUSION These screening criteria utilizing nRBC provides a guideline that public CBBs may use to increase their efficiency by minimizing the processing of UCB units with lower CD34+ cell content.
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Affiliation(s)
- David Galel
- Cell Therapy Laboratory, San Diego Blood Bank, San Diego, California
| | | | - Jennifer Ortega
- Cell Therapy Laboratory, San Diego Blood Bank, San Diego, California
| | - Kirstin Peters
- Cell Therapy Laboratory, San Diego Blood Bank, San Diego, California
| | - Sara Neveu
- Cell Therapy Laboratory, San Diego Blood Bank, San Diego, California
| | - Carolina Davila
- Cell Therapy Laboratory, San Diego Blood Bank, San Diego, California
| | - James Barlow
- Cell Therapy Laboratory, San Diego Blood Bank, San Diego, California
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Gincberg G, Shohami E, Lazarovici P, Elchalal U. Human Umbilical Cord Blood CD45 + Pan-Hematopoietic Cells Induced a Neurotherapeutic Effect in Mice with Traumatic Brain Injury: Immunophenotyping, Comparison of Maternal and Neonatal Parameters, and Immunomodulation. J Mol Neurosci 2017; 64:185-199. [PMID: 29249007 DOI: 10.1007/s12031-017-1008-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 11/24/2017] [Indexed: 11/24/2022]
Abstract
Human umbilical cord blood (HUCB) transplantation has become an alternative cell therapy for hematological and oncological malignancies in the clinic and is considered for neurological disorders. The heterogeneity in the content of the different stem and progenitor cells composing HUCB mononuclear cells (MNC) may influence their engraftment and neurotherapeutic effect. We hypothesized that CD45 pan-hematopoietic marker expression is heterogeneous in MNC, and therefore, CD45+ subpopulation enrichment for neurotherapy may provide a tool to overcome cellular variance in different HUCB units. We employed an immunomagnetic separation method to isolate and characterize HUCB CD45+ pan-hematopoietic subpopulation and to investigate whether the vaginal or cesarean deliveries influence their neurotherapeutic effect in a traumatic brain injury (TBI) mouse model. Adult C57BL/6J male mice were subjected to moderate TBI and intravenously xenotransplanted with 1 × 106 CD45+ cells derived from either vaginal or cesarean HUCB units. A large heterogeneity in the expression of CD45 marker in MNC, both in vaginal and cesarean HUCB units, was found, regardless of the number of live births. A higher expression of hematopoietic markers was found in the CD45+ subpopulation while low expressional levels of typical mesenchymal markers were detected. Neurotherapeutic effects, evaluated with an established neurological severity score and novel object recognition test, indicated improved functional motor and memory recovery and found independent of delivery type. Cytokine analysis in extracts of TBI brain cortices indicated an acute immunomodulatory effect by HUCB CD45+ subpopulation upon xenotransplantation. These results may provide insights to CD45 marker as a predictor of HUCB units' quality for neurotherapy in TBI.
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Affiliation(s)
- Galit Gincberg
- School of Pharmacy Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Esther Shohami
- School of Pharmacy Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Philip Lazarovici
- School of Pharmacy Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Uriel Elchalal
- Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
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Farag SS, Nelson R, Cairo MS, O'Leary HA, Zhang S, Huntley C, Delgado D, Schwartz J, Zaid MA, Abonour R, Robertson M, Broxmeyer H. High-dose sitagliptin for systemic inhibition of dipeptidylpeptidase-4 to enhance engraftment of single cord umbilical cord blood transplantation. Oncotarget 2017; 8:110350-110357. [PMID: 29299152 PMCID: PMC5746387 DOI: 10.18632/oncotarget.22739] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 10/30/2017] [Indexed: 01/31/2023] Open
Abstract
Delayed engraftment remains a limitation of umbilical cord blood (UCB) transplantation. We previously showed that inhibition of dipeptidylpeptidase (DPP)-4 using sitagliptin 600 mg daily was safe with encouraging results on engraftment, but inhibition was not sustained. We evaluated the efficacy and feasibility of higher doses of sitagliptin to enhance engraftment of UCB in patients with hematological cancers. Fifteen patients, median age 41 (range, 18-59) years, received single UCB grafts matched at 4 (n=11) or 5 (n=4) of 6 HLA loci with median nucleated cell dose of 3.5 (range, 2.57-4.57) x107/kg. Sitagliptin 600 mg every 12 hours was administered days -1 to +2. All patients engrafted by day 30, with 12 (80%) engrafting by day 21. The median time to neutrophil engraftment was 19 (range, 12-30) days. Plasma DPP-4 activity was better inhibited with a mean residual trough DPP-4 activity of 70%±19%. Compared to patients previously treated with 600 mg/day, sitagliptin 600 mg every 12 hours appeared to improve engraftment, supporting the hypothesis that more sustained DPP-4 inhibition is required. In-vivo inhibition of DPP-4 using high-dose sitagliptin compares favorably with other approaches to enhance UCB engraftment with greater simplicity, and may show synergy in combination with other strategies.
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Affiliation(s)
- Sherif S Farag
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA.,Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
| | - Robert Nelson
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA.,Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
| | - Mitchell S Cairo
- Children and Adolescent Cancer and Blood Diseases Center and Department of Pediatrics, New York Medical College, Valhalla, New York, USA
| | - Heather A O'Leary
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA.,Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
| | - Shuhong Zhang
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA
| | - Carol Huntley
- Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
| | - David Delgado
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Jennifer Schwartz
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA
| | - Mohammad Abu Zaid
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA
| | - Rafat Abonour
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA
| | - Michael Robertson
- Division of Hematology and Oncology, Department of Medicine, Indianapolis, Indiana, USA.,Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
| | - Hal Broxmeyer
- Department of Microbiology and Immunology, Indianapolis, Indiana, USA.,Indiana University Simon Cancer Center, Indianapolis, Indiana, USA
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Rojo-Medina J, Bello-López JM. HLA frequency in candidates to transplant without compatible cord blood at the National Center of Blood Transfusion (Mexico). Transfus Apher Sci 2017; 56:571-575. [PMID: 28774824 DOI: 10.1016/j.transci.2017.07.017] [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: 03/27/2017] [Revised: 06/17/2017] [Accepted: 07/12/2017] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Umbilical Cord Blood Units (UCBU) for transplantation, are a therapeutic possibility for patients with a wide range of oncohaematological diseases and other immunologic disorders. The search of compatible donors for bone marrow transplantation is increasingly difficult for patients of mixed ethnicity. The aim of this work was determine the HLA frequency of candidates for transplantation without compatible UCBU at the National Center of from Blood Transfusion (NCBT) - Mexico. MATERIAL AND METHODS A retrospective analysis of candidates to transplant without compatible UCBU was performed in the archives from 2003 to 2016 at the NCBT. HLA class I and II genotyping of candidates was performed by medium resolution methods: Sequence Specific Primer and/or Specific Sequence Oligonucleotide. HLA frequencies were obtained by including individuals without any particular bias to a phenotype and strict statistical and genetic analysis of populations were done. The database in www.allelefrequencies.net was used in order to identify the ethnic origin of the most frequent alleles. RESULTS Three hundred and sixty-four candidates without compatible UCBU for transplantation were identified. The most frequent haplotype HLA I and II were: HLA-A*02/02, 02/24, 24/24, 02/68, 01/24 and 24/68; HLA-B*39/39, 35/51, 44/44, 44/40, 35/40 and 35/35; HLA-DRB1*04/04, 13/07, 04/13, 13/13 and 03/11. The ethnic origins of the analyzed data were represented in most cases by Amerindians, Caucasics, Orientals, Asians, Arabs and Africans. CONCLUSION This work shows the existence of a broad genetic diversity of candidates for transplantation with UCBU, making it difficult to find compatible units considering donors only from the capital.
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Affiliation(s)
- Julieta Rojo-Medina
- Centro Nacional de la Transfusión Sanguínea, Av. Othón de Mendizábal 195, Zacatenco, Gustavo A. Madero, 07360 México City, Mexico
| | - Juan Manuel Bello-López
- Centro Nacional de la Transfusión Sanguínea, Av. Othón de Mendizábal 195, Zacatenco, Gustavo A. Madero, 07360 México City, Mexico; Hospital Juárez de México, Av. Instituto Politécnico Nacional 5160, Zacatenco, Gustavo A. Madero, 07360 México City, Mexico.
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Faivre L, Chaussard M, Vercellino L, Vanneaux V, Hosten B, Teixera K, Parietti V, Merlet P, Sarda-Mantel L, Rizzo-Padoin N, Larghero J. 18F-FDG labelling of hematopoietic stem cells: Dynamic study of bone marrow homing by PET–CT imaging and impact on cell functionality. Curr Res Transl Med 2016; 64:141-148. [DOI: 10.1016/j.retram.2016.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/02/2016] [Accepted: 06/03/2016] [Indexed: 01/21/2023]
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