TERC and cancer: H3-K9Me marks were increased at the hTR promoter in normal fibroblasts and in several ALT cell lines with low hTR expression in comparison with telomerase positive cancer cell lines, suggesting a role in hTR suppression, while H3-K4Ac, H4-K4Ac, H3-K9Ac and H3-K4Me were associated with hTR expression.