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Bone marrow fibrosis (BMF) develops in various hematological and non-hematological conditions and is a central pathological feature of myelofibrosis. Effective cell-targeted therapeutics are needed, but the cellular origin of BMF remains elusive. Here, we show using genetic fate tracing in two murine models of BMF that Gli1+ mesenchymal stromal cells (MSCs) are recruited from the endosteal and perivascular...
Chromosomal rearrangements without gene fusions have been implicated in leukemogenesis by causing deregulation of proto-oncogenes via relocation of cryptic regulatory DNA elements. AML with inv(3)/t(3;3) is associated with aberrant expression of the stem-cell regulator EVI1. Applying functional genomics and genome-engineering, we demonstrate that both 3q rearrangements reposition a distal GATA2 enhancer...
The hypothesis that cerebral embolism plays no role in late septic encephalopathy and septic shock is based on indirect clinical evidence in the literature. The goal of this study was to prove the hypothesis that cerebral embolism plays no role in the pathophysiology of sepsis by direct evidence.To examine this hypothesis, 20 patients with a late septic encephalopathy and septic shock were examined...
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