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[Clinical characteristics and prognosis of acute erythroleukemia in children].
Zhongguo Dang Dai Er Ke Za Zhi
January 2025
Department of Children's Hematology and Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
Objectives: To investigate the clinical characteristics and prognosis of acute erythroleukemia (AEL) in children.
Methods: A retrospective analysis was conducted on the clinical data, treatment, and prognosis of 8 children with AEL treated at the First Affiliated Hospital of Zhengzhou University from January 2013 to December 2023.
Results: Among the 7 patients with complete bone marrow morphological analysis, 4 exhibited trilineage dysplasia, with a 100% incidence of erythroid dysplasia (7/7), a 71% incidence of myeloid dysplasia (5/7), and a 57% incidence of megakaryocytic dysplasia (4/7).
Hypoxia impairs decitabine-induced expression of HLA-DR in acute myeloid leukaemia cell lines.
Clin Epigenetics
January 2025
School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, NSW, 2308, Australia.
Background: Hypomethylating agents (HMA), such as azacytidine (AZA) and decitabine (DAC), are epigenetic therapies used to treat some patients with acute myeloid leukaemia (AML) and myelodysplastic syndrome. HMAs act in a replication-dependent manner to remove DNA methylation from the genome. However, AML cells targeted by HMA therapy are often quiescent within the bone marrow, where oxygen levels are low.
View Article and Find Full Text PDFNr4a1 and Nr4a3 redundantly control clonal deletion and contribute to an anergy-like transcriptome in auto-reactive thymocytes to impose tolerance in mice.
Nat Commun
January 2025
Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Arthritis Research Center, Department of Medicine, University of California, San Francisco, CA, 94143, USA.
The Nr4a nuclear hormone receptors are transcriptionally upregulated in response to antigen recognition by the T cell receptor (TCR) in the thymus and are implicated in clonal deletion, but the mechanisms by which they operate are not clear. Moreover, their role in central tolerance is obscured by redundancy among the Nr4a family members and by their reported functions in Treg generation and maintenance. Here we take advantage of competitive bone marrow chimeras and the OT-II/RIPmOVA model to show that Nr4a1 and Nr4a3 are essential for the upregulation of Bcl2l11/BIM and thymic clonal deletion by self-antigen.
View Article and Find Full Text PDFGuidance on the assessment of the functionality of biomaterials for periodontal tissue regeneration: Methodologies and testing procedures.
Dent Mater
January 2025
Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA. Electronic address:
Innovative biomaterials and tissue engineering strategies show great promise in regenerating periodontal tissues. This guidance provides an overview and detailed recommendations for evaluating the biological functionality of these new biomaterials in vitro, focusing on mineralization, immunomodulatory effects, cellular differentiation, and angiogenesis. Additionally, it discusses the use of in vivo experimental models that mimic periodontitis and scrutinizes methods such as osteogenic differentiation, immunomodulation, and anti-inflammatory responses to assess the effectiveness of these biomaterials in promoting periodontal tissue reconstruction.
View Article and Find Full Text PDFIntratumoral oncolytic virus OH2 injection in patients with locally advanced or metastatic sarcoma: a phase 1/2 trial.
J Immunother Cancer
January 2025
Department of Bone and Soft Tissue Tumor, Peking University Cancer Hospital. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing, China
Background: Intratumoral oncolytic herpes simplex virus 2-GM CSF (OH2) injection has shown safety and antitumor efficacy in patients with solid tumors. Here, we examined the safety and efficacy of OH2 as a single agent or in combination with HX008, an NMPA-approved PD-1 inhibitor, in locally advanced or metastatic sarcoma patients.
Methods: This multicenter, phase 1/2 trial enrolled patients with injectable sarcoma lesions, who had failed at least 1 or more lines of standard treatment.
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