However, a more variable pattern of relative expression was seen with JEG-3 when compared with nonplacental tumor cells; while hCS-A RNA levels were greater in HeLa and MCF-7 cells, hCS-B transcripts were greater only in HeLa cells and hGH-V transcripts were greater in MCF-7 cells alone (Fig. 1C). This evidence concerns the gene CSH2 and neoplasm.