Donor cell ‐derived chronic myelomonocytic leukemia presenting after allogeneic hematopoietic cell transplantation for T‐cell acute lymphoblastic leukemia

Donor cell (DC) leukemia is a rare cause of relapse after allogeneic hematopoietic cell transplantation and usually presents as acute myeloid leukemia. Uncommonly, other DC ‐derived hematologic malignancies can occur and usually have a poor prognosis. AbstractDonor cell leukemia is a very rare cause of relapse after allogeneic hematopoietic cell transplantation (alloHCT). Herein, we describe an unprecedented case of donor cell ‐derived chronic myelomonocytic leukemia (CMML) presenting seven years after a 51‐year‐old man received a matched‐related alloHCT from his 59‐year‐old brother for T‐cell acute lymphoblastic leukemia.
Source: Clinical Case Reports - Category: General Medicine Authors: Tags: CASE REPORT Source Type: research

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Authors: Chen X, Yu X, Wang DD, Xu H, Li Z Abstract Bone marrow transplants (BMT) are an established therapeutic strategy for patients with severe aplastic anemia, acute lymphoblastic leukemia, acute myeloid leukemia or chronic myeloid leukemia. However, the successful application of BMT is limited by graft-vs.-host disease (GVHD). Ciclosporin has been widely used for treating GVHD in pediatric patients who underwent BMT. The present study aimed to optimize the dosage of ciclosporin for safety and effectiveness based on population pharmacokinetics. A non-linear mixed-effects model was used to analyze the clinical d...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
AbstractThe introduction of chimeric antigen receptor T cell (CAR T) therapy has resulted in a paradigm shift in the management of relapsed/refractory B cell malignancies. Patients with acute lymphoblastic leukemia and non ‐Hodgkin’s lymphoma who had exhausted all meaningful treatment options now have an opportunity for long‐term remission and possibly cure. CAR T is rapidly expanding into the treatment paradigm for multiple myeloma with approvals expected in the near future. CAR T for chronic lymphocytic leukem ia may not be far behind, while CAR T studies in Hodgkin lymphoma and acute myeloid leukemia are ongoi...
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - Category: Drugs & Pharmacology Authors: Tags: SI ON STEM CELL TRANSPLANTATION Source Type: research
This study is planned to investigate the prognostic role of pre-transplant soluble TIM-3 (sTIM-3) levels in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. Methods: Pre-transplant serum sTIM-3 levels were measured in 177 allo-HSCT recipients [median age: 36(16-66) years; male/female: 111/66]. Results: Pre-transplant sTIM-3 levels were significantly higher in acute myeloid leukemia (AML) patients compared to acute lymphoblastic leukemia (ALL) patients (p = 0.01). Pre-transplant sTIM-3 levels were significantly lower in patients with abnormal cytogenetics (p = 0.017). Pr...
Source: Hematology - Category: Hematology Tags: Hematology Source Type: research
ConclusionWe suggest a one ‐compartment population model with first‐order elimination to capture the pharmacokinetic profile for basiliximab for this patient population.
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - Category: Drugs & Pharmacology Authors: Tags: ORIGINAL RESEARCH ARTICLE Source Type: research
Abstract Recent genetic analysis using next-generation sequencing (NGS) vastly improved the understanding of molecular mechanism of hematological malignancies. Many molecular targeting drugs have since been used in the clinic, which is timely as clinical outcomes using conventional chemotherapy and hematopoietic stem cell transplantation (HSCT) reached a plateau. The first memorable success in this field was imatinib, a first-generation tyrosine kinase inhibitor (TKI), which has been applied in chronic myeloid leukemia (CML) since 2001. Imatinib drastically changed CML treatment and many CML patients no longer req...
Source: European Journal of Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Eur J Pharmacol Source Type: research
Conclusions The discovery of JAK2V617F mutation in BCR-ABL1-negative MPNs by four different international cooperative groups in 2005 (2–5) led to significant insights on the pathogenesis of these disorders. In fact, this mutation results in a gain-of-function with activation of cytokine and growth factor receptors, and thus of the downstream JAK-STAT pathway (79, 95–98). The JAK2 point mutation in exon 12, present in a small percentage of patients with PV, is able to induce the MPN phenotype through the same pathogenic mechanism (6, 7). In 2006 the MPLW515L/K was reported in ET and PMF patients (44, 45) and d...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Discussion This case demonstrates successful cure of pre-B-ALL complicating XLA by alloSCT with restoration of B-cell development and functional antibody response. We are aware of only one previous case of pre-B-ALL in an XLA patient (21), which suggests that human BTK deficiency in itself does not predispose to pre-B-ALL. However, there are data to suggest that BTK may act as a tumor suppressor, and BTK deficiency may predispose to tumor development following a “second hit.” Mice with a genetic deficiency in Slp65, a gene encoding an adaptor protein that functions together with BTK, have a block in progenito...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
CONCLUSION: At variance with induction results for AML (Peterlin et al., 2019) endogenous sFLc do not appear to be a prognostic marker at the time of or after allo-HSCT. Even though the results are negatives, this is, to the best of our knowledge, the only prospective series specifically addressing the question of sFLc impact after allo-HSCT in acute leukemias. PMID: 31035172 [PubMed - as supplied by publisher]
Source: Cytokine - Category: Molecular Biology Authors: Tags: Cytokine Source Type: research
Conclusion: This prospective multicenter study provides information on the current incidence and outcome of IFD in the real life setting. Practice variation between the centers may help to ultimately improve antifungal management in children at highest risk for IFDs. Introduction Available data on the incidence and outcome of invasive fungal diseases (IFD) in children treated for a hematological malignancy or undergoing allogeneic hematopoietic stem cell transplantation (HSCT) are mostly based on single site, retrospective studies or on studies performed prior to the availability of newer compounds such as broad-sp...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusions: CAR T cell therapies have demonstrated the clinical benefits of harnessing our body's own defenses to combat tumor cells. Similar research is being conducted on lesser known modifications and gene-modified immune cells, which we highlight in this review. Introduction Chimeric antigen receptors and engineered T cell receptors (based on previously identified high affinity T cell receptors) function by redirecting T cells to a predefined tumor-specific (or tumor-associated) target. Most of these modifications use retroviral or lentiviral vectors to integrate the construct, and most of the receptors ...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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