Chronic and excessive inflammation can lead to exhaustion of the supply of hematopoietic stem cells and to myeloid malignancies in mice, mimicking important aspects of the myelodysplastic syndrome found in humans.
Stefan Heinrichs, Lillian F Conover ... A Thomas Look
Reduced expression of MYBL2 contributes to malignancies of the blood by permitting uncontrolled expansion of blood cell progenitors, implying a tumor suppressor function for this gene.
While intact mir-17-92 acts as a potent oncogene in a mouse model of Burkitt’s lymphoma, one of the six mir-17-92 components antagonizes its oncogenic cooperation with c-Myc by promoting c-Myc-induced apoptosis.
A set of genes that are turned on only within time-limited windows—including genes encoding RNA binding molecules, let-7 microRNAs and IMP1—control developmental switches in stem cell properties between fetal development and adulthood.
A normally cytoplasmic deacetylase, Hdac6, localizes to the nucleus in embryonic stem cells, where it regulates the essential Tip60-p400 chromatin remodeling complex.
Dorothy K Sojka, Beatrice Plougastel-Douglas ... Wayne M Yokoyama
Natural killer cells that were commonly thought to circulate around the body can actually reside in distinct tissues, such as in the liver, skin or uterus, and do not re-circulate.