Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Single cell RNA sequencing (scRNA-seq) of human embryoid body (day 4 of culture)

ABSTRACT: Human Primordial Germ Cell (PGC)-like cells (PGCLC) were specified in vitro from naive-like hiPS cell lines. To evaluate the first steps of PGCLC differentiation, we performed scRNA-seq (droplet-based technology, 10x) on cell suspension from embryoid body (EB) obtained after EB aggregation followed by 4 days of culture (EBd4) with cocktail of cytokines (BMP4, LIF, SCF, EGF and ROCK inhibitor) supplemented with 0.1 mM 2-mercaptoethanol and 15% KSR. In this study, two pools of embryoid bodies (EBD4_A, EBD4_B) were cultured independently for for further encapsulation and sequencing.

INSTRUMENT(S): Illumina NovaSeq 6000

ORGANISM(S): Homo sapiens

SUBMITTER:

PROVIDER: E-MTAB-12089 | biostudies-arrayexpress |

SECONDARY ACCESSION(S): ERP140384

REPOSITORIES: biostudies-arrayexpress

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Project description:Directing differentiation of human embryonic stem cells (hESC) into specific cell types using an easy and reproducible protocol is a perquisite for the clinical use of hESC in regenerative medicine protocols. Here, we report the generation of mesodermal cells with differentiation potential to myocytes, osteoblasts, chondrocytes and adipocytes. We demonstrate that during hESC differentiation as embryoid bodies (EB), inhibition of TGF-b/Activin/Nodal signaling using SB-431542 (SB) markedly up-regulated paraxial mesodermal markers (TBX6, TBX5), early myogenic transcriptional factors (Myf5, Pax7) as well as myocyte committed markers (NCAM, CD34, Desmin, MHC (fast), alpha-smooth muscle actin, Nkx2.5, cTNT). Establishing EB outgrowth cultures (SB-OG) in the presence of SB (1 uM) led to further enrichment of cells expressing markers for myocyte progenitor cell: CD34+ (33%), NCAM+ (CD56) (73%), PAX7 (25%) and mature myocyte proteins (MYOD1, tropomyocin, fast MHC an; d SERCA1). Further analysis using DNA microarray revealed differential up-regulation of 117 genes (>2-fold compared to control cells) annotated to myogenic development and function. During ex vivo culture, contracting myocytes were observed (80% of the population) and the cells formed myofibres when implanted intramuscularly in vivo. Furthermore, in the presence of fetal bovine serum (10% FBS), SB-OG cells developed morphologically and phenotypically into a homogeneous stromal (mesenchymal) stem cell (MSC)-like population expressing characteristic MSC CD markers: CD44 (100%), CD73 (98%), CD146 (96%) and CD166 (88%). They were karyotypically normal and were able to differentiate ex vivo and in vivo into osteoblasts, adipocytes and chondrocytes. Experiment Overall Design: Human ESCs were differentiated as EBs for 10 days, where after EBs were plated onto fibronectin coated petri dishes. At confluency the outgrowth culture was passaged, at passage 5 3 samples were taken from both control-OG and SB-OG. the samples were mixed and frozen.

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Single cell RNA sequencing (scRNA-seq) of human embryoid body (day 4 of culture)

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