Publications by authors named "F Trimoreau"

Article Synopsis
  • Patients with Fanconi anemia (FA) show chromosome instability, leading to exhaustion of hematopoietic stem cells and a higher risk of developing poor-prognosis myeloid leukemia.
  • A study involving 62 patients revealed unique mutations and structural variants that resemble BRCA-related cancers, with many patients showing chromosome 1q gain linked to MDM4 trisomy, which downregulates p53 signaling.
  • MDM4 triplication not only enhances the survival of FA stem cells but also promotes leukemia development, suggesting that targeting MDM4 could be a potential therapeutic strategy to disrupt this pathway.
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Myelodysplastic syndromes (MDS) are hematological malignancies classically defined by the presence of cytopenia(s) and dysmorphic myeloid cells. It is now known that MDS can be preceded by a pre-malignant condition called clonal cytopenia of unknown significance (CCUS), which associates a clonality marker with cytopenia in the absence of criteria of dysplasia. However, to date, it is not clear whether chromosomal abnormalities should be considered in the definition of CCUS or if they carry a prognostic impact in CCUS patients.

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Background: Differential diagnosis of Waldenström macroglobulinemia (WM) with other indolent B-cell malignancies is still a challenge. Here, we propose an original and simple analysis of routine flow cytometry (FCM) unraveling the characteristic ongoing plasma cell (PC) differentiation of WM tumor B-cells.

Methods: FCM analysis of both B-cells and PC was performed on a series of 77 patients with IgM peak.

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Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare and aggressive leukemia for which we developed a nationwide network to collect data from new cases diagnosed in France. In a retrospective, observational study of 86 patients (2000-2013), we described clinical and biological data focusing on morphologies and immunophenotype. We found expression of markers associated with plasmacytoid dendritic cell origin (HLA-DRhigh, CD303+, CD304+, and cTCL1+) plus CD4 and CD56 and frequent expression of isolated markers from the myeloid, B-, and T-lymphoid lineages, whereas specific markers (myeloperoxidase, CD14, cCD3, CD19, and cCD22) were not expressed.

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