Kening Li, Yuxin Du, Yun Cai, Wenjie Liu, Yan Lv, Bin Huang, Lishen Zhang, Zhi Wang, Ping Liu, Qian Sun, Ning Li, Mengyan Zhu, Bakwatanisa Bosco, Liangyu Li, Wei Wu, Lingxiang Wu, Jianyong Li, Qianghu Wang, Ming Hong, Sixuan Qian
Chemoresistance and relapse are the leading cause of AML-related deaths. Utilizing single-cell RNA sequencing (scRNA-seq), we dissected the cellular states of bone marrow samples from primary refractory or short-term relapsed AML patients and defined the transcriptional intratumoral heterogeneity. We found that compared to proliferating stem/progenitor-like cells (PSPs), a subpopulation of quiescent stem-like cells (QSCs) were involved in the chemoresistance and poor outcomes of AML. By performing longitudinal scRNA-seq analyses, we demonstrated that PSPs were reprogrammed to obtain a QSC-like expression pattern during chemotherapy in refractory AML patients, characterized by the upregulation of CD52 and LGALS1 expression...
February 2023: Leukemia