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CpG island methylator phenotype classification improves risk assessment in pediatric T-cell Acute Lymphoblastic Leukemia.
Blood
January 2025
Umeå University, Department of Medical Biosciensces, Department of Clinical Microbiology, Umeå, Sweden.
Current intensive treatment of pediatric T-cell acute lymphoblastic leukemia (T-ALL) has substantial side-effects, highlighting a need for novel biomarkers to improve risk stratification. Canonical biomarkers such as genetics and immunophenotype are largely not used in pediatric T-ALL stratification. This study aimed to validate the prognostic relevance of DNA methylation CpG island methylator phenotype (CIMP) risk stratification in two pediatric T-ALL patient cohorts: the Nordic NOPHO ALL2008 T-ALL study cohort (n=192) and the Dutch DCOG ALL-10/ALL-11 validation cohorts (n=156).
View Article and Find Full Text PDFIntrachromosomal amplification of chromosome 21 (iAMP21) B-cell precursor acute lymphoblastic leukemia (BCP-ALL) in children is a high-risk subtype for which targeted drugs are lacking. In this study, we determined the frequency of secondary lesions in 28 iAMP21 BCP-ALL patient samples and investigated cellular sensitivity for candidate-targeted drugs. iAMP21 was enriched in aberrations (10.
View Article and Find Full Text PDFConcurrent presentation of acute lymphoblastic leukemia and bullous pemphigoid: a rare case report.
Oxf Med Case Reports
January 2025
Department of Internal Medicine, Faculty of Medicine, Hasanuddin University, Jalan Perintis Kemerdekaan KM. 11, Makassar, South Sulawesi 90245, Indonesia.
Historically, adolescents and young adults diagnosed with acute lymphoblastic leukemia (ALL) have faced lower survival rates compared to children with the same illness. Bullous pemphigoid (BP), a rare autoimmune skin disorder, poses unique challenges when occurring alongside hematologic malignancies. A 23-year-old male with ALL-L1 diagnosis who developed bullous pemphigoid in this report.
View Article and Find Full Text PDFRAB3GAP2 dysregulation in adult T-cell leukemia/lymphoma (ATLL) compared to acute lymphoblastic leukemia (ALL): a molecular perspective.
BMC Res Notes
January 2025
Department of Microbiology and Virology, School of Medicine, Alborz University of Medical Sciences, Alborz, Iran.
Adult T-cell leukemia/lymphoma (ATLL) is a type of blood cancer related to human T-cell lymphotropic virus type 1 (HTLV-1). The principal aim of this study was to investigate cellular processes related to innate immune response, intracellular protein transport, and translational initiation regulation in individuals afflicted with ATLL and Acute lymphoblastic leukemia (ALL). Whole blood samples and peripheral blood mononuclear cells were collected from 10 viral ATLL patients and 10 ALL subjects.
View Article and Find Full Text PDFTLE4 is a repressor of the oncogenic activity of TLX3 in T-cell acute lymphoblastic leukemia.
Leukemia
January 2025
Department of Human Genetics, KU Leuven, Leuven, Belgium.
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological disease originating from the malignant transformation of T-cell progenitors, caused by the accumulation of genetic aberrations. One-fifth of T-ALL patients are characterized by ectopic expression of the homeobox transcription factor TLX3. However, the role of TLX3 in T-ALL remains elusive, partly due to the lack of suitable study models.
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