Strocchio L, Zecca M, Comoli P, Mina T, Giorgiani G, Giraldi E, Vinti L, Merli P, Regazzi M, Locatelli F. Br J Haematol. This observation has both confirmed the therapeutic efficacy and secured the goal of mixed chimerism for the hemoglobinopathies.28, Myeloablative HSCT for children with SCD with matched related donors. Thank you for visiting nature.com. To allow comparisons across studies, a recent categorization of conditioning regimens was proposed that used the terms myeloablative (MA), reduced-intensity conditioning, and nonmyeloablative (NMA).31 In the proposed classification, MA regimens were defined as those that cause irreversible pancytopenia and thus require stem cell support. The most important one is that only a small percentage of patients have HLA-identical siblings.14 Another factor is the wide disparity in the concept of who is, or is not qualified for transplant. Allogeneic stem cell transplantation is increasingly considered as a curative though risky treatment option for adults with sickle cell disease. The disorder is characterized by anemia, ongoing hemolysis, along with acute and chronic complications affecting multiple organs. The evaluation and counseling of candidates for hematopoietic cell transplantation In: Thomas ED, Blume KG, Forman SJ (eds) Hematopoietic Cell Transplantation Blackwell Science: Oxford 1999 371–380, Quill T, Brody H . Marrow transplantation for patients with thalassemia: results in class 3 patients. Patients were asked whether they would consent to bone marrow transplantation in various hypothetical situations. Cooperative study of sickle cell disease. Transplantation of a child with sickle cell anemia with an unrelated cord blood unit after reduced intensity conditioning. Br J Haematol 2008; 141: 335–345. Reduced doses of busulfan (from 14 mg/kg to 6.4 mg/kg) appeared to allow engraftment,29 whereas a similar reduction in melphalan dosing did not.30 Since then, a bewildering number of conditioning regimens have been developed, mostly in the setting of malignant disease, in an attempt to bring transplantation procedures to a greater number of patients and potentially to those with SCD. Walters et al.28 subsequently reported on the successful use of HLA-matched sibling MAC allo-HSCT in a larger series of patients with SCD. Blood. Derivation of autologous iPS cells from HbS/HbS mice and correction of the sickle allele by gene targeting.84 (a) Scheme for in vitro reprogramming of skin fibroblasts with defined transcription factors combined with gene and cell therapy to correct sickle cell anemia in mice. Quantitatively different red cells/nucleated cell chimerism in patients with long-term persistant hematopoietic mixed chimerism after bone marrow transplantation for thalassemia major or sickle cell disease.
The decision to accept risk is influenced by individual patient values that cannot be easily quantified and that do not correlate with the assessment of the health care provider. We therefore went back to the murine model to tailor a regimen for SCD.
However, because of the risk of graft rejection, particularly in the heavily RBC-transfused patients with SCD, a high level of immunoablation is important for successful donor engraftment.
In another series, among 4848 patients with SCD who were younger than 16 years of age, 315 (6.5%) met entry criteria for transplantation.63 However, only 128 (41% of eligible or 2.6% of total) underwent HLA typing. ISSN 1476-5365 (online), Allogeneic stem cell transplantation for sickle cell disease. Friedman DF, Lukas MB, Jawad A, Larson PJ, Ohene-Frempong K, Manno CS . Hsieh et al.66 performed RIC allo-HSCT in ten adult patients (ages 16–45 years) with high risk SCD. Specific treatment has remained limited and includes erythrocyte transfusions and more recently hydroxyurea.1-3 Hydroxyurea results in a significant reduction in the number of painful crises per year and a decreased frequency of acute chest syndrome1 ; it has become the treatment of choice for many patients with SCD.
(2020), Journal of Clinical Medicine
Disease free survival was 96% (95% CI, 88–100%) in the MFD‐subgroup and 83% (95% CI, 54–100%) in the MUD‐subgroup, respectively (P = N.S.). Steen RG, Helton KJ, Horwitz EM, Benaim E, Thompson S, Bowman LC et al. Myeloablative allogeneic HSCT (allo-HSCT) is curative but has been historically performed only in children younger than 16 years of age. Biol Blood Marrow Transplant 2005; 11: 403–422. Stable long-term donor engraftment following reduced-intensity hematopoietic cell transplantation for sickle cell disease.
Epub 2015 Mar 27. |
The data of this survey should be interpreted with caution. ... Cancer Center at Johns Hopkins, Baltimore, Maryland, USA. Successful unrelated donor cord blood transplantation for adult sickle cell disease and Hodgkin lymphoma.
Bone-marrow transplantation in a patient with sickle-cell anemia. In all, 50 patients survived free of SCD after receiving MAC and HLA-identical sibling marrow transplants, and of these 50, 13 developed stable mixed donor–host chimerism. Targeted therapy could reverse the fetal-to-adult switch, and hence reduce disease severity. Haploidentical stem cell transplantation after a reduced-intensity conditioning regimen for the treatment of advanced hematologic malignancies: posttransplantation CD8-depleted donor lymphocyte infusions contribute to improve T-cell recovery. 2017 Dec;10(4):259-266. doi: 10.1016/j.hemonc.2017.05.008. Walters MC, Storb R, Patience M, Leisenring W, Taylor T, Sanders JE et al. Results of alternative donor search in adult patients with severe sickle cell disease (SCD) eligible for hematopoietic stem cell transplantation (HSCT).
3.3. May C, Rivella S, Callegari J, Heller G, Gaensler KM, Luzzatto L et al.
Connor P, Veys P, Amrolia P, Haworth S, Ashworth M, Moledina S . Allogeneic stem cell transplantation for sickle cell disease.
Bone Marrow Transplant 47, 1489–1498 (2012). Hyposplenism: a comprehensive review. A graft-versus-malignancy effect can then be harnessed to achieve long-term disease-free survival.
These results suggest that a similar approach could be investigated in high-risk patients with SCD. However, the persistent finding of graft rejection and GVHD indicates that further improvements must be made.
Twenty-eight said they would not consent to the procedure, even if there were no risks associated with it. Blood 1998; 91: 288–294. A longer follow‐up and a larger number of patients will enable the potential impact of this approach to also be assessed on transplant‐associated late effects. Therefore 100 patients were interviewed. and P.C. All five of these patients had Hb levels >11.
Falletta JM, Woods GM, Verter JI, Buchanan GR, Pegelow CH, Iyer RV et al.
J Pediatr 1995; 127: 685–690. A substantial proportion of adults with sickle cell disease are interested in curative treatment, at the expense of considerable risk. Hematopoietic cell transplantation for thalassemia and sickle cell disease: past, present and future. We have adopted the conditioning regimen that Lucarelli et al.49 piloted in the FHI TCD allo-HSCT study in a high-risk thalassemia population (Figure 3). Aversa F, Tabilio A, Terenzi A, Velardi A, Falzetti F, Giannoni C et al. P01 CA015396/CA/NCI NIH HHS/United States. Correction of sickle cell disease in transgenic mouse models by gene therapy. Cytotherapy. © 2020 King Faisal Specialist Hospital & Research Centre. Correspondence to In contrast, haploidentical donors would greatly increase the donor pool because the majority of patients will have a suitable parent, child, or haploidentical sibling donor.
Transplantation for thalassemia major: alternative donors. Moral aspects of risk and innovation Artific Org 1997 21: 1217–1221, Prayle D, Brazier M . 2017 May 18;129(20):2719-2726. doi: 10.1182/blood-2017-02-765891. Dysregulated arginine metabolism, hemolysis-associated pulmonary hypertension, and mortality in sickle cell disease. Genome-wide association studies have identified loci on chromosome 2 (BCL11A) and chromosome 6 (HBS1LMyb) that modify HbF expression. Experiencia en un centro.
Although these results on the whole are remarkable, the chances of finding a related HLA-identical CB unit are no better than that of finding an HLA-matched sibling.68 In addition, the relatively low cell dose attainable with CB restricts broad application. Certainly, the notion that less-than-complete donor engraftment may revert several disorders such as the severe combined immunodeficiencies has fostered work in genetic modification of autologous HSCs that has recently proven effective and continues to support this type of strategy for eventual application in SCD.52-54 However, the minimum percentage of donor cells that defined MDC differed in SCD and thalassemia patients undergoing allo-HSCT, and the cell populations (total leukocytes, mononuclear cells, or lineage specific cells) that were assayed for chimerism also varied; thus, the threshold percentage of donor cells sufficient to ameliorate the hemoglobin disorders has not yet been firmly established.
Barriers to bone marrow transplantation for sickle cell anemia. The very different viewpoint of patients and health care professionals can lead to different attitudes toward the risks of transplantation.6,7,8. Toward clinical therapies using hematopoietic cells derived from human pluripotent stem cells. The numbers over the bars indicate how many patients said they would consent to the procedure. Clin Vaccine Immunol 2010; 17: 602–608. (e) Replacement of the hbs gene with a hbA globin gene in sickle iPS cell line no. Field JJ, DeBaun MR, Yan Y, Strunk RC . The ethics of clinical research in developing countries IRB: a Review of Human Subjects Research 1999 21: 8–11, Section of Hematology and Oncology, University of Illinois at Chicago, IL, USA, K van Besien, M Koshy, N Talishy, L Dorn, S Devine & M Yassine, Department of Medical Humanities, University of Illinois at Chicago, IL, USA, Department of Pediatrics and Center for Biomedical Ethics, Rainbow Babies and Childrens Hospital and Case Western Reserve University, Cleveland, OH, USA, You can also search for this author in A two-year pilot trial of hydroxyurea in very young children with sickle-cell anemia.
Although the curative potential of HSCT has been well established in several nonmalignant disorders, there has always been difficulty in determining which patients with SCD warrant the potential risks of this technique. Pediatr Transplant 2007; 11: 641–644.
Effect of HLA incompatibility on graft-versus-host disease, relapse, and survival after marrow transplantation for patients with leukemia or lymphoma. Epub 2017 Jun 1. Hematopoietic stem cell transplantation for sickle cell disease: The changing landscape. Krishnamurti et al.62 reported on stable donor engraftment after RIC with BU, fludarabine, equine ATG, and TLI. MacLean JE, Atenafu E, Kirby-Allen M, MacLusky IB, Stephens D, Grasemann H et al. Biol Blood Marrow Transplant 2008; 14: 1270–1278. Matched-related donor transplantation for sickle cell disease: report from the center for International Blood and Transplant Research. Some would recommend transplantation to all children with hemoglobinopathies,2,15 others recommend conservative treatment in the large majority.16,17. Owing to this theoretical possibility, Shenoy et al.64 modified the regimen to dose alemtuzumab on days −21 to −19, prior to allo-HSCT in patients with nonmalignant disease. Embury S, Hebbel RP, Mohandas N, Steinberg MH (eds). They were asked whether they would recommend transplantation for each of their patients in the various hypothetical situations that had been described to the patients before.
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