Leukemia, although most likely starts as a monoclonal genetic/epigenetic anomaly, is a polyclonal disease at manifestation. This polyclonal nature results from ongoing evolutionary changes in the genome/epigenome of leukemia cells to promote their survival and proliferation advantages. We discuss here how genetic and/or epigenetic aberrations alter intracellular microenvironment in individual leukemia clones and how extracellular microenvironment selects the best fitted clones. This dynamic polyclonal composition of leukemia makes designing an effective therapy a challenging task especially because individual leukemia clones often display substantial differences in response to treatment. Here, we discuss novel therapeutic approach employing single cell multiomics to identify and eradicate all individual clones in a patient.
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http://dx.doi.org/10.1038/s41375-024-02369-6 | DOI Listing |
Mol Cancer
January 2025
Molecular Epidemiology (MOLE), Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
VTRNA2-1 is a polymorphically imprinted locus. The proportion of individuals with a maternally imprinted VTRNA2-1 locus is consistently approximately 75% in populations of European origin, with the remaining circa 25% having a non-methylated VTRNA2-1 locus. Recently, VTRNA2-1 hypermethylation at birth was suggested to be a precursor of paediatric acute lymphoblastic leukaemia with biomarker potential.
View Article and Find Full Text PDFBMC Neurol
January 2025
Department of Neurology, Wessex Neurological Centre, University Hospital Southampton, Southampton, UK.
Blood Cancer J
January 2025
Hospital de la Santa Creu i Sant Pau. Institut d'investigació Biomèdica Sant Pau (IIB SANT PAU) Department of Medicine, Universitat Autonoma of Barcelona, Barcelona, Spain.
Given the heterogeneity of acute myeloid leukemia patients, it is necessary to identify patients considered fit for intensive therapy but who will perform poorly, and in whom alternative approaches deserve investigation. We analyzed 1034 fit adults ≤70 years intensively treated between 2012 and 2022 in the CETLAM group. Young adults ( ≤ 60 years) presented higher remission rates and improved survival than older adults above that age (CR 79% vs.
View Article and Find Full Text PDFMed Clin (Barc)
January 2025
Servicio de Hematología, Hospital Universitario Vall d'Hebron, Barcelona, España.
Introduction: Chronic lymphocytic leukemia (CLL) is the most common form of leukemia in adults in Western countries, with a median age at diagnosis of 72 years. This guide, developed by the Spanish Group for Chronic Lymphocytic Leukemia (GELLC), addresses the most relevant aspects of CLL, with the objectives of facilitating and aiding the diagnostic process, establishing therapeutic recommendations for choosing the best treatment for each type of patient, as well as standardizing the management of CLL and ensuring equity across different hospitals in terms of the use of the various available treatment regimens.
Methodology: The references obtained were classified according to the level of evidence and following the criteria established by the Agency for Health Research and Quality, and the recommendations were classified according to the criteria of the National Comprehensive Cancer Network (NCCN).
Crit Rev Oncol Hematol
January 2025
Department of Haematology, Bayero University Kano and Aminu Kano Teaching Hospital, Kano, Nigeria.
Human T-lymphotropic virus-1 (HTLV-1) induces neoplastic adult T-cell leukemia/lymphoma (ATLL) and neurological HTLV-1 associated myelopathy (HAM) in approximately 3%-5% of infected individuals. The precise factors that facilitate disease manifestation are still unknown; interaction between the virus and the host's immune response is key. Cytokines regulates physiological activities and their dysregulation may initiate the pathogenesis of various malignant and infectious diseases.
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