Measuring the amount of methotrexate polyglutamates (MTXPG) in leukemia cells after high-dose methotrexate (HDMTX) revealed that molecular subtype and lineage of acute lymphoblastic leukemia (ALL), the ratio of expression of folate influx and efflux transporters, methotrexate (MTX) infusion time, folylpolyglutamate synthase mRNA expression, and MTX systemic clearance explain 42% of the variation in active MTXPGs accumulation in ALL cells , providing insights into mechanisms underlying interpatient differences in the antileukemic effects of HDMTX.
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http://dx.doi.org/10.1080/23723556.2020.1865086 | DOI Listing |
PLoS One
January 2025
School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China.
The incidence of acute myeloid leukemia (AML) is increasing annually, and timely diagnostic and treatments can substantially improve patient survival rates. AML typing traditionally relies on manual microscopy for classifying and counting myeloid cells, which is time-consuming, laborious, and subjective. Therefore, developing a reliable automated model for myeloid cell classification is imperative.
View Article and Find Full Text PDFJ Clin Invest
January 2025
Division of Pediatric Hematology/Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, United States of America.
Although nucleoporin 98 (NUP98) fusion oncogenes often drive aggressive pediatric leukemia by altering chromatin structure and expression of HOX genes, underlying mechanisms remain elusive. Here, we report that a Hoxb-associated lncRNA HoxBlinc was aberrantly activated in NUP98-PHF23 fusion-driven leukemias. HoxBlinc chromatin occupancies led to elevated MLL1 recruitment and aberrant homeotic topologically associated domains (TADs) that enhanced chromatin accessibilities and activated homeotic/hematopoietic oncogenes.
View Article and Find Full Text PDFBiomed Rep
March 2025
Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, Larissa 41500, Greece.
Myelodysplastic syndrome (MDS) is a heterogeneous clonal disorder characterized by insufficient hematopoiesis, peripheral blood cytopenia and an increased risk for malignant transformation to acute myeloid leukemia. Several factors, such as age, sex and lifestyle, promote the development of MDS syndrome. Oxidative stress, along with its detrimental effects, cause hematological disorders; however, its role in the pathogenesis of MDS is unknown.
View Article and Find Full Text PDFCell Mol Biol Lett
January 2025
Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Key Laboratory of Drug Research for Prevention and Treatment of Hyperlipidemic Diseases, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
Background: The protein cereblon (CRBN) mediates the antileukemia effect of lenalidomide (Len). Len binds to CRBN, recruits IKZF1/IKZF3, and promotes their ubiquitination and degradation, through which Len exhibits its antileukemia and antimyeloma activity. Therefore, the protein level of CRBN might affect the antiproliferative effect of Len.
View Article and Find Full Text PDFBone Marrow Transplant
January 2025
Division of Hematology and Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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