Feasibility of allogeneic hematopoietic stem cell transplantation in advanced age.

Although it is known that increasing age is associated with increased morbidity and mortality in allogeneic transplantation (allo-HSCT), individualization of the process may allow to perform it in progressively older patients.This study analyzed the outcome of 97 patients older than 60 years with a first allo-HSCT performed at our institution between 2011 and 2019.Median age was 66 years (range 60-79) and 15.4% were older than 70 years. The most frequent diagnosis was acute leukemia (50.5%), and 58.8% received a myeloablative conditioning. With a median follow-up of 33.9 months (range 7.9-111.5), at 3-years overall survival (OS) was 50%; progression-free survival (PFS), 46%; cumulative incidence of relapse, 22%; and non-relapse mortality (NRM), 32%. There were no significant differences in OS (p = 0.415), PFS (p = 0.691), cumulative incidence of relapse (p = 0.357) or NRM (p = 0.658) between patients of 60-64 years (n = 37), 65-69 (n = 45) and ≥ 70 years (n = 15). No differences were observed either depending on the intensity of the conditioning regimen in terms of OS (p = 0.858), PFS (p = 0.729), cumulative incidence of relapse (p = 0.416) or NRM (p = 0.270).In conclusion, older adults can safely and effectively undergo allo-HSCT with proper patient selection and individualized transplantation procedures.

Cardiac Events after Allo-HCT in Patients with Acute Myeloid Leukemia. Study Conducted con Behalf of the GETH-TC.

This multicenter study sponsored by GETH-TC aimed to investigate the incidence and predictors of early (within the first 100 days) and late cardiac events (CE) (ECE and LCE) following allo-HCT in AML patients treated with anthracyclines, focusing on exploring the impact of PTCY on cardiac complications and the impact of CE on overall survival (OS) and non-relapse mortality (NRM). 1020 AML patients were included. PTCY was given to 450 (44.1%) adults. Overall, 94 (9.2) patients experienced CE and being arrythmias, pericardial complications, and heart failure the most prevalent ones. ECE occurred in 49 (4.8%) patients in a median of 13 days after allo-HCT, while LCE were diagnosed in 45 (4.4%) patients in a median of 3.6 years after transplant. Using PTCY increased the risk for ECE in multivariate analysis (HR 2.86, P=0.007), but did not not significantly affect the risk for LCE (HR 1.06, P=0.892). The impact of variables on outcomes revealed was investigated using multivariate regression analyses and revealed that the diagnosis of CE significantly decreased the likelihood of OS (HR 1.66, P=0.005) and increased the likelihood of NRM (HR 2.88, P<0.001). Furthermore, despite using PTCY increased the risk for ECE, its administration was found to be beneficial for OS (HR 0.71, P=0.026). The study suggests that while the incidence of CE was relatively low, it significantly impacted mortality. Standard doses of PTCY increased ECE risk but were associated with improved OS. Therefore, implementing protocols to prevent cardiac complications is recommended, considering the widespread adoption of PTCY in allo-HCT.

A Different View for an Old Disease: NEDDylation and Other Ubiquitin-Like Post-Translational Modifications in Chronic Lymphocytic Leukemia.

Despite the enormous amount of molecular data obtained over the years, the molecular etiology of chronic lymphocytic leukemia (CLL) is still largely unknown. All that information has enabled the development of new therapeutic approaches that have improved life expectancy of the patients but are still not curative. We must increase our knowledge of the molecular alterations responsible for the characteristics common to all CLL patients. One of such characteristics is the poor correlation between mRNA and protein expression, that suggests a role of post-translational mechanisms in CLL physiopathology. Drugs targeting these processes have indeed demonstrated an effect either alone or in combination with other aimed at specific pathways. A recent article unveiled an increment in ubiquitin-like modifications in CLL, with many protein members of relevant pathways affected. Interestingly, the inhibition of the NEDD8-activating protein NAE reverted a substantial number of those modifications. The present review gets the scarce data published about the role of NEDDylation in CLL together and establishes connections to what is known from other neoplasias, thus providing a new perspective to the underlying mechanisms in CLL.