scholarly journals Incidence, Risk Factors, and Prognosis of Late Immune-Mediated Disorders after Allogeneic Hematopoietic Cell Transplantation (HCT)

2015 ◽  
Vol 21 (2) ◽  
pp. S54 ◽  
Author(s):  
Mukta Arora ◽  
Corey S. Cutler ◽  
Madan H. Jagasia ◽  
Joseph Pidala ◽  
Xiaoyu Chai ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cell Transplantation ◽  
Hematopoietic Cell Transplantation ◽  
Hematopoietic Cell ◽  
Allogeneic Hematopoietic Cell Transplantation ◽  
Immune Mediated ◽  
Incidence Risk

scholarly journals Assessment of Endothelial Injury and Pro-Coagulant Activity Using Circulating Microvesicles in Survivors of Allogeneic Hematopoietic Cell Transplantation

2020 ◽  
Vol 21 (24) ◽  
pp. 9768
Author(s):  
Eleni Gavriilaki ◽  
Ioanna Sakellari ◽  
Panagiota Anyfanti ◽  
Ioannis Batsis ◽  
Anna Vardi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Cardiovascular Risk ◽  
Cardiovascular Risk Factors ◽  
Cell Transplantation ◽  
Vascular Injury ◽  
Hematopoietic Cell Transplantation ◽  
Hematopoietic Cell ◽  
Allogeneic Hematopoietic Cell Transplantation ◽  
Coagulant Activity

(1) Background: survivors of allogeneic hematopoietic cell transplantation (alloHCT) suffer from morbidity and mortality due to cardiovascular events. We hypothesized that vascular injury and pro-coagulant activity are evident in alloHCT survivors without existing alloHCT complications or relapse. (2) Methods: we enrolled consecutive adult alloHCT survivors without established cardiovascular disease and control individuals matched for traditional cardiovascular risk factors (January–December 2019). Circulating microvesicles (MVs) of different cellular origins (platelet, erythrocyte, and endothelial) were measured by a standardized flow cytometry protocol as novel markers of vascular injury and pro-coagulant activity. (3) Results: we recruited 45 survivors after a median of 2.3 (range 1.1–13.2) years from alloHCT, and 45 controls. The majority of patients suffered from acute (44%) and/or chronic (66%) graft-versus-host disease (GVHD). Although the two groups were matched for traditional cardiovascular risk factors, alloHCT survivors showed significantly increased platelet and erythrocyte MVs compared to controls. Within alloHCT survivors, erythrocyte MVs were significantly increased in patients with a previous history of thrombotic microangiopathy. Interestingly, endothelial MVs were significantly increased only in alloHCT recipients of a myeloablative conditioning. Furthermore, MVs of different origins showed a positive association with each other. (4) Conclusions: endothelial dysfunction and increased thrombotic risk are evident in alloHCT recipients long after alloHCT, independently of traditional cardiovascular risk factors. An apparent synergism of these pathophysiological processes may be strongly involved in the subsequent establishment of cardiovascular disease.

scholarly journals Allogeneic hematopoietic cell transplantation for acute myeloid leukemia in older adults

Hematology ◽  
2014 ◽  
Vol 2014 (1) ◽  
pp. 21-33 ◽  
Author(s):  
Mohamed L. Sorror ◽  
Elihu Estey
Keyword(s):  
Risk Factors ◽  
Acute Myeloid Leukemia ◽  
Cell Transplantation ◽  
Myeloid Leukemia ◽  
Hematopoietic Cell Transplantation ◽  
Hematopoietic Cell ◽  
Assessment Tools ◽  
Allogeneic Hematopoietic Cell Transplantation ◽  
Patient Specific ◽  
Acute Myeloid

Abstract Acute myeloid leukemia (AML) is primarily a disease of the elderly and the numbers of these patients are increasing. Patients ≥60 years of age continue to have poor prognosis. Preliminary results suggest benefit from reduced-intensity allogeneic hematopoietic cell transplantation (HCT) in selected patients 60-80 years of age. However, although patients in this age range comprise >50% of those with AML, they currently constitute only 17% of those offered HCT. In the absence of prospective randomized studies comparing HCT and chemotherapy, the decision to recommend HCT rests on retrospective analyses of the risks of relapse and nonrelapse mortality after each approach. There is strong evidence that pre-HCT comorbidities can predict HCT-related morbidity and mortality. Age alone does not appear predictive and, particularly if the risk of relapse with chemotherapy is high, should not be the sole basis for deciding against HCT. Use of geriatric assessment tools, inflammatory biomarkers, and genetic polymorphism data may further aid in predicting nonrelapse mortality after HCT. Disease status and pretreatment cytogenetics with FLT3-TID, NPM-1, and CEBP-α status are the main factors predicting relapse and these are likely to be supplemented by incorporation of other molecular markers and the level of minimal residual disease after chemotherapy. HLA-matched related and unrelated donor grafts seem preferable to those from other donor sources. Donor age is of no clear significance. Models combining comorbidities with AML risk factors are useful in risk assessment before HCT. In this chapter, we integrated information on AML-specific, HCT-specific, and patient-specific risk factors into a risk-adapted approach to guide decisions about HCT versus no HCT.

scholarly journals Regulatory T cells and natural killer T cells for modulation of GVHD following allogeneic hematopoietic cell transplantation

Blood ◽  
2013 ◽  
Vol 122 (18) ◽  
pp. 3116-3121 ◽  
Author(s):  
Dominik Schneidawind ◽  
Antonio Pierini ◽  
Robert S. Negrin
Keyword(s):  
T Cells ◽  
Cell Transplantation ◽  
Hematopoietic Cell Transplantation ◽  
Hematopoietic Cell ◽  
Allogeneic Hematopoietic Cell Transplantation ◽  
Regulatory Function ◽  
Animal Modeling ◽  
Early Results ◽  
Immune Mediated ◽  
Cell Subpopulations

Abstract Alloreactivity of donor lymphocytes leads to graft-versus-host disease (GVHD) contributing to significant morbidity and mortality following allogeneic hematopoietic cell transplantation (HCT). Within the past decade, significant progress has been made in elucidating the mechanisms underlying the immunologic dysregulation characteristic of GVHD. The recent discoveries of different cell subpopulations with immune regulatory function has led to a number of studies aimed at understanding their role in allogeneic HCT and possible application for the prevention and treatment of GVHD and a host of other immune-mediated diseases. Preclinical animal modeling has helped define the potential roles of distinct populations of regulatory cells that have progressed to clinical translation with promising early results.

Sign in / Sign up

Export Citation Format

Share Document