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[Acquisition of Primary Ph Bone Marrow Cells and Establishment of Ph B-ALL Mouse Model].
Zhongguo Shi Yan Xue Ye Xue Za Zhi
December 2024
Blood Disease Institute, Xuzhou Medical University,Xuzhou 221000, Jiangsu Province, China.
Article Synopsis
- The objective of the study was to harvest primary Philadelphia chromosome-positive (Ph) cells from B-acute lymphoblastic leukemia (B-ALL) and create a B-ALL mouse model.
- Methods included infecting bone marrow cells from C57BL/6J mice with a retrovirus, followed by the transplantation of transfected cells into irradiated mice, resulting in the establishment of multiple generations of Ph cells.
- The results showed significant health deterioration in the mice post-transplant, with pathological features such as weight loss and leukemic cell infiltration in the liver, confirming the successful creation of a B-ALL mouse model through progressive passages of Ph cells.
CD4 T Cells Mediate Dendritic Cell Licensing to Promote Multi-Antigen Anti-Leukemic Immune Response.
Cancer Med
January 2025
Division of Oncology, The Children's Hospitial of Philadelphia, Philadelphia, Pennsylvania, USA.
Background: Single antigen (Ag)-targeted immunotherapies for acute lymphoblastic leukemia (ALL) are highly effective; however, up to 50% of patients relapse after these treatments. Most of these relapses lack target Ag expression, suggesting targeting multiple Ags would be advantageous.
Materials & Methods: The multi-Ag immune responses to ALL induced by transducing cell lines with xenoAgs green fluorescent protein and firefly luciferase was elucidated using flow cytometry, ELISA, and ELISpot assays.
3D chromatin hubs as regulatory units of identity and survival in human acute leukemia.
Mol Cell
January 2025
Division of Precision Medicine, Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA; Applied Bioinformatics Laboratories, Office of Science and Research, New York University Grossman School of Medicine, New York, NY, USA. Electronic address:
Cancer progression involves genetic and epigenetic changes that disrupt chromatin 3D organization, affecting enhancer-promoter interactions and promoting growth. Here, we provide an integrative approach, combining chromatin conformation, accessibility, and transcription analysis, validated by in silico and CRISPR-interference screens, to identify relevant 3D topologies in pediatric T cell leukemia (T-ALL and ETP-ALL). We characterize 3D hubs as regulatory centers for oncogenes and disease markers, linking them to biological processes like cell division, inflammation, and stress response.
View Article and Find Full Text PDFShort-Course Blinatumomab Treatment as a Bridge to Further Salvage Therapy for Relapsed/Refractory B-Cell Acute Lymphoblastic Leukemia: A Retrospective Single-Center Study.
Cancer Med
December 2024
Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Backgroud: The high cost of blinatumomab in full doses of full treatments has led to dose reduction and fewer treatment cycles for most patients in China. With current needs for cost-efficiency and resource management in health care, we retrospectively evaluated the clinical effects of short-course blinatumomab treatment for R/R Ph- B-ALL at our center.
Methods: Blinatumomab was administered with 24-h continuous intravenous infusion (9 μg/day for the first 3 days and 28 μg/day for 6-10 days).
Implications of Clonal Hematopoiesis in Hematological and Non-Hematological Disorders.
Cancers (Basel)
December 2024
Department of Medicine, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
Clonal hematopoiesis (CH) is associated with an increased risk of developing myeloid neoplasms (MNs) such as myelodysplastic neoplasm (MDS) and acute myeloid leukemia (AML). In general, CH comprises clonal hematopoiesis of indeterminate potential (CHIP) and clonal cytopenia of undetermined significance (CCUS). It is an age-related phenomenon characterized by the presence of somatic mutations in hematopoietic stem cells (HSCs) and hematopoietic stem and progenitor cells (HSPCs) that acquire a fitness advantage under selection pressure.
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