Robert A. J. Signer

Stathmin 1 regulates mitophagy and non-proliferative cellular function in hematopoietic stem and progenitor cells

Stathmin 1 is a cytoplasmic phosphoprotein that regulates microtubule dynamics. Stathmin 1 expression is a feature of proliferating cells, and it is overexpressed in many cancers, including leukemias. In contrast to its roles in proliferating cells, considerably less is known of...

Inhibition of RhoA-mediated secretory autophagy in megakaryocytes mitigates myelofibrosis in mice

Abstract Megakaryocytes (MKs) are large, polyploid cells that contribute to bone marrow homeostasis through the secretion of cytokines such as transforming growth factor β1 (TGFβ1). During neoplastic transformation, immature MKs accumulate in the bone marrow where they induce fib...