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Araie H, Hosono N, Tsujikawa T, Kiyono Y, Okazawa H, Yamauchi T. Hematopoiesis in the spleen after engraftment in unrelated cord blood transplantation evaluated by 18F-FLT PET imaging. Int J Hematol 2023; 118:618-626. [PMID: 37782417 PMCID: PMC10615934 DOI: 10.1007/s12185-023-03658-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
Cord blood is an important donor source for allogeneic hematopoietic stem cell transplantation (allo-HSCT), with its unique composition and quality of hematopoietic cells. The proliferation site and potency of infused hematopoietic stem cells in humans may vary between stem cell sources. We investigated this possibility in a prospective, exploratory study to assess hematopoietic dynamics using the radiopharmaceutical 3'-deoxy-3'-18F-fluorothymidine (18F-FLT), a thymidine analog used in positron emission tomography imaging, before allo-HSCT and on days 50 and 180 after allo-HSCT. We evaluated 11 patients with hematological malignancies who underwent allo-HSCT [five with peripheral blood stem cell transplantation (PBSCT) and six with unrelated cord blood transplantation (UCBT)]. Before allo-HSCT, 18F-FLT uptake did not differ between the two groups. At day 50, 18F-FLT uptake in the spleen was significantly greater in the UCBT group than in the PBSCT group (p = 0.0043), with no difference in whole-body bone marrow. At day 180, the differences in spleen uptake had diminished, and there were no differences between groups in whole-body bone marrow or the spleen, except for the sternum. The persistence of splenic hematopoiesis after engraftment in the UCBT group may reflect the complex systemic homing and proliferation mechanisms of cord blood hematopoietic cells.
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Affiliation(s)
- Hiroaki Araie
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| | - Naoko Hosono
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan.
| | - Tetsuya Tsujikawa
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Yasushi Kiyono
- Biomedical Imaging Research Center, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Hidehiko Okazawa
- Biomedical Imaging Research Center, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Takahiro Yamauchi
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
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Yamazaki K, Kawabori M, Seki T, Takamiya S, Tateno T, Konno K, Watanabe M, Houkin K. FTY720 Attenuates Neuropathic Pain after Spinal Cord Injury by Decreasing Systemic and Local Inflammation in a Rat Spinal Cord Compression Model. J Neurotrauma 2020; 37:1720-1728. [PMID: 32216535 PMCID: PMC7368387 DOI: 10.1089/neu.2019.6905] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Neuropathic pain severely impairs rehabilitation and quality of life after spinal cord injury (SCI). The sphingosine-1-phosphate receptor agonist, FTY720, plays an important protective role in neuronal injury. This study aims to examine the effects of FTY720 in a rat acute SCI model, focusing on neuropathic pain. Female rats with SCI induced by 1-min clip compression were administered vehicle or 1.5 mg/kg of FTY720 24 h after the injury. Using the mechanical nociceptive threshold test, we monitored neuropathic pain and performed histological analysis of the pain pathway, including the μ opioid receptor (MOR), hydroxytryptamine transporter (HTT), and calcitonin gene-related peptide (CGRP). Motor score, SCI lesion volume, residual motor axons, inflammatory response, glial scar, and microvascular endothelial dysfunction were also compared between the two groups. FTY720 treatment resulted in significant attenuation of post-traumatic neuropathic pain. It also decreased systemic and local inflammation, thereby reducing the damaged areas and astrogliosis and resulting in motor functional recovery. Whereas there was no difference in the CGRP expression between the two groups, FTY720 significantly preserved the MOR in both the caudal and rostral areas of the spinal dorsal horn. Whereas HTT was preserved in the FTY720 group, it was significantly increased in the rostral side and decreased in the caudal side of the injury in the vehicle group. These results suggest that FTY720 ameliorates post-traumatic allodynia through regulation of neuroinflammation, maintenance of the blood-brain barrier, and inhibition of glial scar formation, thereby preserving the connectivity of the descending inhibitory pathway and reducing neuropathic pain.
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Affiliation(s)
- Kazuyoshi Yamazaki
- Department of Neurosurgery, Graduate School of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Masahito Kawabori
- Department of Neurosurgery, Graduate School of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
- Department of Neurological Cell Therapy, Hokkaido University Hospital, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
- Address correspondence to: Masahito Kawabori, MD, Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8638, Japan
| | - Toshitaka Seki
- Department of Neurosurgery, Graduate School of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Soichiro Takamiya
- Department of Neurosurgery, Graduate School of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takahiro Tateno
- Department of Hematology, Graduate School of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kotaro Konno
- Department of Anatomy and Embryology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Masahiko Watanabe
- Department of Anatomy and Embryology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kiyohiro Houkin
- Department of Neurosurgery, Graduate School of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
- Department of Neurological Cell Therapy, Hokkaido University Hospital, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
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Ishii H, Konuma T, Kato S, Oiwa-Monna M, Tojo A, Takahashi S. Impact of hematogones on the long-term outcomes of single-unit cord blood transplantation for adult patients. Leuk Lymphoma 2016; 58:118-126. [DOI: 10.1080/10428194.2016.1180687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Honebrink T, Dayton V, Burke MJ, Larsen K, Cao Q, Brunstein C, Weisdorf D, Miller JS, Wagner JE, Verneris MR. Impact of bone marrow hematogones on umbilical cord blood transplantation outcomes in patients with acute myeloid leukemia. Biol Blood Marrow Transplant 2012; 18:930-6. [PMID: 22108570 PMCID: PMC4378716 DOI: 10.1016/j.bbmt.2011.11.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Accepted: 11/09/2011] [Indexed: 11/16/2022]
Abstract
Early after umbilical cord blood transplantation, patients show marked differences in bone marrow (BM) hematogone percentages. Little is known about whether these differences are clinically relevant. We hypothesized that early recovery of hematogones may be associated with improved transplantation outcomes. BM aspirates were assessed from 88 patients with acute myeloid leukemia by two independent reviewers at day 21 and 100 after umbilical cord blood transplantation. Interobserver variability for BM hematogone percentages at these time points showed correlation coefficients of 0.83 and 0.98, respectively (P ≤ .01 for both). A high percentage of hematogones at day 21 was associated with less acute graft-versus-host disease grade 3 to 4 (P = .01). At day 100, a high percentage of BM hematogones was associated with improved overall survival (P = .02) and lower treatment-related mortality (P ≤ .01). This study shows that BM hematogone percentages may be useful prognostic indicators in patients with acute myeloid leukemia after umbilical cord blood transplantation and should be routinely reported in BM differential counts.
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Affiliation(s)
- Theodore Honebrink
- Department of Laboratory Medicine and Pathology, New Brighton, Minnesota, USA
| | - Vanessa Dayton
- Department of Laboratory Medicine and Pathology, New Brighton, Minnesota, USA
| | - Michael J. Burke
- Division of Hematology/Oncology and Blood and Marrow Transplantation in the Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Qing Cao
- Biostatistic Core of the Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Claudio Brunstein
- Division of Hematology/Oncology and Transplantation in the Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Daniel Weisdorf
- Division of Hematology/Oncology and Transplantation in the Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jeffery S. Miller
- Division of Hematology/Oncology and Transplantation in the Department of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - John E. Wagner
- Division of Hematology/Oncology and Blood and Marrow Transplantation in the Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Michael R. Verneris
- Division of Hematology/Oncology and Blood and Marrow Transplantation in the Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
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Montesinos P, Gascón A, Martínez-Cuadrón D, Senent ML, Cordón L, Sanz J, Sempere A, López-Pavía M, Rodríguez-Veiga R, Hurtado MJ, Gomis F, Martín G, Lorenzo I, Palau J, Planelles MD, Larrea L, Carpio N, Pérez-Sirvent M, Sanz MA, Sanz GF. Significance of Increased Blastic-Appearing Cells in Bone Marrow Following Myeloablative Unrelated Cord Blood Transplantation in Adult Patients. Biol Blood Marrow Transplant 2012; 18:388-95. [DOI: 10.1016/j.bbmt.2011.11.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 11/02/2011] [Indexed: 11/12/2022]
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