Project description:Human embryonic stem cell (hESC) line Man-13 was edited by CRISPR resulting in a hESC line carrying a heterozygous frameshift mutation with a premature stop codon in exon-1 of the HNF1B gene ([p.Val61Argfs*18]), functionally equivalent to a heterozygous whole-gene deletion. Kidney organoids were then created by differentiation (as per Takasato et al, 2015; Bantounas et al, 2018; Bantounas et al 2021) of this line and an isogenic non-mutant control line. Single-cell RNAseq (scRNAseq) was then performed on day-25 of differentiation to identify transcriptomic differences, as well as differences in identity and numbers of the cell populations comprising the organoids, with the aim of mechanistically explaining developmental aberrations observed in patients with mutations in this gene.
Project description:CD34-positive cells from peripheral blood were culture for 5 days in erythroid differentiating medium. Four progenitor stages were sorted by FACS using the established cell surface markers CD34 and CD36 with CD117, CD71, and CD105 (Yan H, Am J Hematol, 2021). A comprehensive analysis of the proteome of these four erythroid progenitor stages was done in quadruplicate using a label free proteomic approach.