Precision and efficacy of RNA-guided DNA integration in high-expressing muscle loci.

Gene replacement therapies primarily rely on adeno-associated virus (AAV) vectors for transgene expression. However, episomal expression can decline over time due to vector loss or epigenetic silencing. CRISPR-based integration methods offer promise for long-term transgene insertion.

Precision and efficacy of RNA-guided DNA integration in high-expressing muscle loci.

Gene replacement therapies in genetic medicine primarily rely on adeno-associated viral (AAV) vectors for transgene expression. However, episomal expression can decline over time due to epigenetic silencing. CRISPR-based integration methods offer promise for long-term transgene insertion.

[Modalities for preparation, cryopreservation, thawing of hematopoietic stem cells and precautions for infusion to patient: Guidelines from the Francophone Society of Bone Marrow Transplantation and Cellular Therapy (SFGM-TC)].

To date, despite an existing regulatory framework and standards, there are no true technical recommendations. A survey of 23 cell processing facilities (France, Belgium and Switzerland) has allowed to overview current practices according to cellular products specifications upon arrival at the facility, with modalities for their preparation prior to cryopreservation, storage, thawing and finally for infusion to patient. Data analysis shows great variability of collected volumes and cell concentrations in cellular products.

Tumor-forming plasmacytoid dendritic cells associated with myeloid neoplasms. Report of a peculiar case with histopathologic features masquerading as lupus erythematosus.

Plasmacytoid dendritic cells (PDC) belong to a subtype of dendritic cells that are normally absent in healthy skin. In some inflammatory diseases of the skin, especially lupus erythematosus (LE), these cells are occasionally recruited in great amounts, which can be used as a helpful clue for diagnosis. Rarely, PDC may also accumulate in the skin of patients with myeloid leukemia, a yet poorly known condition currently called 'tumor-forming PDC associated with myeloid neoplasms'.

[Polyclonal lymphocytosis with binucleated lymphocytes. Morphological, immunological, cytogenetic and molecular analysis in 15 cases].

Objectives: Describe the clinical, immunological, cytogenetic and molecular aspects of polyclonal lymphocytosis with binucleated peripheral lymphocytes in order to ascertain the therapeutic consequences.

Patients And Methods: Fifteen patients, 13 women, 2 men, with a total lymphocyte count persistently above 4 x 10(9)/l at successive counts and binucleated lymphocytes on blood smears were studied.

Results: The syndrome is easily recognized at careful examination of blood smears which show binucleated lymphocytes and lymphoid cells with heterogeneous morphology.