Methylation Changes of Primary Tumors, Monolayer, and Spheroid Tissue Culture Environments in Malignant Melanoma and Breast Carcinoma.

Methylation Changes of Primary Tumors, Monolayer, and Spheroid Tissue Culture Environments in Malignant Melanoma and Breast Carcinoma. Biomed Res Int. 2019;2019:1407167 Authors: Şükrüoğlu Erdoğan Ö, Kılıç Erciyas S, Bilir A, Buğra Tunçer Ş, Akdeniz Ödemiş D, Kurul S, Karanlık H, Cabıoğlu N, Yazıcı H Abstract Epigenetic changes have major role in the normal development and programming of gene expression. Aberrant methylation results in carcinogenesis. The primary objective of our study is to determine whether primary tumor tissue and cultured tumor cells in 2D and 3D tissue culture systems have the same methylation signature for PAX5, TMPRSS2, and SBDS. These findings will play an important role in developing in vitro model system to understand the effect of methylation inhibitors on primary tumor tissue. In a previous study PAX5, TMPRSS2, and SBDS genes that we are investigating were reported to be methylated more than 60% in breast cancer and malignant melanoma cell lines. However, these genes have never been studied in primary tumor tissues. Thus, primary tumor tissues of breast cancer and malignant melanoma were first grown in 2D and 3D cultures. Then these two types of tumor tissues and their 2D and 3D cultures were investigated for changes considering methylation levels in PAX5, TMPRSS2, and SBDS genes using real-time polymerase chain reaction. No differences were observed in the primary tissues and culture sy...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research