Yueyue Sun, Huan Tong, Xiang Chu, Yingying Li, Jie Zhang, Yangyang Ding, Sixuan Zhang, Xiang Gui, Chong Chen, Mengdi Xu, Zhenyu Li, Elizabeth E Gardiner, Robert K Andrews, Lingyu Zeng, Kailin Xu, Jianlin Qiao
Notch signaling regulates cell-fate decisions in several developmental processes and cell functions. However, a role for Notch in hepatic thrombopoietin (TPO) production remains unclear. We noted thrombocytopenia in mice with hepatic Notch1 deficiency, and so investigated TPO production and other features of platelets in these mice. We found that the liver ultrastructure and hepatocyte function were comparable between control mice and Notch1-deficient mice. However, the Notch1-deficient mice had significantly lower plasma TPO and hepatic TPO mRNA levels, concomitant with lower numbers of platelets and impaired megakaryocyte differentiation and maturation, which were rescued by addition of exogenous TPO...
April 11, 2024: Blood