ELABELA (ELA) is a peptide hormone required for heart development that signals via the Apelin Receptor (APLNR, APJ). ELA is also abundantly secreted by human embryonic stem cells (hESCs), which do not express APLNR. Here we show that ELA signals in a paracrine fashion in hESCs to maintain self-renewal. ELA inhibition by CRISPR/Cas9-mediated deletion, shRNA or neutralizing antibodies causes reduced hESC growth, cell death and loss of pluripotency. Global phosphoproteomic and transcriptomic analyses of ELA-pulsed hESCs show that it activates PI3K/AKT/mTORC1 signaling required for cell survival. ELA promotes hESC cell cycle progression and protein translation, and blocks stress-induced apoptosis. INSULIN and ELA have partially overlapping functions in hESC medium, but only ELA can potentiate the TGF pathway to prime hESCs towards the endoderm lineage. We propose that ELA, acting through an alternate cell-surface receptor, is an endogenous secreted growth factor in human embryos and hESCs that promotes growth and pluripotency.
ELABELA Is an Endogenous Growth Factor that Sustains hESC Self-Renewal via the PI3K/AKT Pathway.
Specimen part, Treatment
View SamplesThis study identifies miR-198 as a potential inhibitor of keratinocyte migration in skin
'See-saw' expression of microRNA-198 and FSTL1 from a single transcript in wound healing.
Specimen part, Time
View SamplesRNA-seq analysis of 6 WHO grade-II tumors (n=4 with the rs55705857 genotype A/G and n=2 with the genotype A/A) that were IDH1-R132H mutant, 1p/19q co-deleted and ATRX-wild-type.
No associated publication
Sex, Age, Specimen part, Disease, Race
View SamplesTranscriptome profiling using Affymetrix GeneChip arrays was performed on sorted populations of Lgr5-expressing mouse ovarian surface epithelium.
Lgr5 marks stem/progenitor cells in ovary and tubal epithelia.
Sex, Specimen part
View SamplesEpithelial gland development within the uterine lining during prepubertal period is important to ensure successful gestation in adults. Lgr5 expression in uterus becomes largely restricted to the tips of developing glands after birth. These Lgr5 highly expressing cells function as stem cells during gland development.
Neonatal Wnt-dependent Lgr5 positive stem cells are essential for uterine gland development.
Specimen part
View SamplesIn 2014 Western Africa experienced an unanticipated explosion of infections with Ebola virus (EBOV). What distinguishes fatal from non-fatal outcomes remains largely unknown, yet is key to optimising personalised treatment strategies. Here transcriptome data for peripheral blood taken from infected and convalescent, recovering patients, was used to identify early stage host factors that were associated with acutely ill patients that ultimately either survived or succumbed to the disease.
No associated publication
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Ing1 functions in DNA demethylation by directing Gadd45a to H3K4me3.
Sex, Specimen part, Cell line
View SamplesING1b and GADD45a are nuclear proteins involved in the regulation of cell growth, apoptosis and DNA repair. We found that ING1b and GADD45a physically and functionally interact in the epigenetic regulation of specific target genes. In order to characterise the functional ING1b-GADD45a interaction, we performed a gain-of-function experiment in HEK293T cells by individual and combinatorial plasmid transfections and then analysed the transcriptional response via expression microarray profiling.
Ing1 functions in DNA demethylation by directing Gadd45a to H3K4me3.
Cell line
View SamplesRibosomal protein Rpl12p is encoded by duplicated genes RPL12A and RPL12B. The gene products have identical primary protein sequence but reportedly cells harboring either Rpl12ap or Rpl12bp exhibit subtle functional differences. We use microarrays to screen for genes which might express differently in the presence of Rpl12ap or Rpl12bp.
Rpl12p affects the transcription of the PHO pathway high-affinity inorganic phosphate transporters and repressible phosphatases.
No sample metadata fields
View SamplesA880 has pop2 deletion and a very slow-growth phenotype with glycerol as carbon source. A880 transformed with 2-micron plasmids encoding STM1 can grow robustly on glycerol plates. The Arg237 on Stm1p can be methylated by Hmt1p. A880 transformed with 2-micron plasmids encoding the Stm1p R237K mutant retain the slow-growth phenotype on glycerol plates.
No associated publication
No sample metadata fields
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