TGFB1 and neoplasm: Other members of the TGF superfamily of secreted factors, such as TGFB1-3, as well as their receptors were broadly expressed across all tumour compartments, although TGFB1 appeared non-significantly elevated in clusters relative to both PE (4.9-fold, unadjusted p value = 0.08; adjusted p value not assessed because of inadequate read numbers) and glial tissue (9.5-fold, adjusted p value = 0.37) [Suppl.