RESUMO
OBJECTIVE@#To analyze the dynamic molecular expression characteristics of single cell RNA binding proteins (RBPs) in the development of mouse embryonic hematopoitic stem cells (HSCs), and obtain the functional research target RNA splicing factor--Mbnl1, to clarify the function of Mbnl1 involved in regulating mouse embryonic HSC development.@*METHODS@#Bioinformatics was used to analyze the single-cell transcriptome data of mouse embryos during HSC development, and the single-cell RBP dynamic molecular expression maps in HSC development was obtained. Mbnl1 was obtained by combining differential analysis and literature research screening. The Mbnl1-knockout mouse model was constructed by the CRISPER/Cas9 technology. Aorta-gonad-mesonephros (AGM) and yolk sac (YS) tissue in two genotype embryos of Mbnl1@*RESULTS@#The in vitro CFU-C experiment of hematopoietic cells preliminarily indicated that there was no significant difference in the number of cell colonies in AGM region and YS transformed by the two genotypes of Mbnl1@*CONCLUSION@#Through functional experiments in vivo and in vitro, it has been confirmed that knockout of the RNA splicing factor--Mbnl1 does not affect the development of HSPC in AGM region of mouse embryo.