Abstract
Abstract Calmodulin-binding transcription activator 1 (CAMTA1) is a transcription factor located on chromosome 1p, and we have recently reported that CAMTA1 expression reduced neurosphere formation and tumor growth in nude mice, suggesting that CAMTA1 can function as tumor suppressor in experimental glioma. In the present study, we investigated the molecular network of CAMTA-1 in glioma cells. We established glioma cell lines with a doxycycline-inducible overexpression of CAMTA1. We performed a cap analysis of gene expression (CAGE) on these overexpressing cell lines to identify differentially regulated transcriptional start sites. We particularly focused on regulated target genes encoded on chromosome 19q. We identified an interaction of CAMTA1 overexpression with changes in the differential expression of Zink finger (ZNF) genes located on 19q. We will present novel data on a potential molecular interaction between chromosomes 1p and 19q.
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