Expression data from cells overexpressing c19orf63 (HSS1) [A172]

A172 cell lines were stable transfected with C19ORF63 (Human hematopoietic peptide secreted-1 - HSS1). HSS1 is a truly novel protein defining a new class of secreted factors. A172 cell line overexpressing HSS1 greatly reduced their proliferation rate compared to mock-transfected cells. Microarray analysis was used to detail gene expression underlying the anti-proliferative and anti-tumorigenic effect of HSS1 in A172 cells. Exponentially growing A172 cells at growth curve day 4 were harvested for total RNA extraction and hybridization on Affimetrix microarrays. Four groups of samples were evaluated in biological triplicates: A172 wild-type, A172 -pcDNA3.1 mock-transfected, A172-pcDNA-HSS1 clone#7 and A172-pcDNA-HSS1 clone#8. Cells were stable transfected with pcDNA3.1 empty vector or hHSS1. hHSS1-expressing cells and control cells were at confluence 40-80% when harvested. Trypan blue analysis of the number of viable cells showed a significant anti-proliferative effect in A172 cells expressing hHSS1 as compared to the control cells.