c("cell type: sorted Pdx1-EGFP+ pancreatic progenitors derived from Pdx1-EGFP HUES8", "hesc line: HUES8", "co-culture conditions: AKT-HUVEC")
c("cell type: sorted Pdx1-EGFP+ pancreatic progenitors derived from Pdx1-EGFP HUES8", "hesc line: HUES8", "co-culture conditions: BJ")
c("cell type: sorted Pdx1-EGFP+ pancreatic progenitors derived from Pdx1-EGFP HUES8", "hesc line: HUES8", "co-culture conditions: none/before")
c("cell type: sorted Pdx1-EGFP+ pancreatic progenitors derived from Pdx1-EGFP HUES8", "hesc line: HUES8", "co-culture conditions: MPEC")