Reinhard H. Dammann

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Allelic loss at the short arm of chromosome 3 is one of the most common and earliest events in the pathogenesis of lung cancer, and is observed in more than 90% of small-cell lung cancers (SCLCs) and in 50–80% of non-small-cell lung cancers (NSCLCs). Frequent and early loss of heterozygosity and the presence of homozygous deletions suggested a critical role(More)
The Ras Association Domain Family 1A (RASSF1A) gene is one of the most frequently silenced genes in human cancer. RASSF1A has been shown to interact with the proapoptotic kinase MST1. Recent work in Drosophila has led to the discovery of a new tumor-suppressor pathway involving the Drosophila MST1 and MST2 ortholog, Hippo, as well as the Lats/Warts(More)
The human Ras association domain family 1A gene (RASSF1A), recently cloned from the lung tumor suppressor locus 3p21.3, was shown to be hypermethylated in primary lung tumors, and reexpression of RASSF1A suppressed the growth of lung cancer cells (R. Dammann et al., Nat. Genet., 25: 315-319, 2000). In this study, we analyzed the expression and possible(More)
Nore and RASSF1A are noncatalytic proteins that share 50% identity over their carboxyterminal 300 AA, a segment that encompasses a putative Ras-Rap association (RA) domain. RASSF1 is expressed as several splice variants, each of which contain an RA domain, however the 340 AA RASSF1A, but not the shorter RASSF1C variant, is a putative tumor suppressor. Nore(More)
The Ras-Association Domain Family (RASSF) comprises ten members, termed RASSF1 to RASSF10. RASSF1 to RASSF6 harbor a C-terminal Ras-association (RA) domain and RASSF7 to RASSF10 contain an N-terminal RA domain. Interestingly, it was observed that in various tumor types distinct RASSFs transcripts (e.g. RASSF1A and RASSF2A) are missing due to(More)
The RAS association domain family 1A (RASSF1A) gene is silenced by DNA methylation in over 50% of all solid tumors of different histological types. However, the biochemical function of the RASSF1A protein is unknown. We show that RASSF1A colocalizes with microtubules in interphase and decorates spindles and centrosomes during mitosis. RASSF1A has a strong(More)
In this study, microarray analysis was used to identify tumour-related genes that were down regulated in lung carcinoma. The promoter sequences of the identified genes were analysed for methylation patterns. In lung cancer cell lines, CpG island methylation was frequently detected for TIMP4 (64%), SOX18 (73%), EGF-like domain 7 (56%), CD105 (71%), SEMA2(More)
Loss of genetic material from chromosome 3p21.3 is one of the most common and earliest events in the pathogenesis of lung cancer and many other solid tumors. The chromosomal area 3p21.3 is thought to harbor at least one important tumor suppressor gene, which, despite many years of investigation, has remained elusive. In our previous studies, we have(More)
The Ras association domain family (RASSF) comprises a group of tumor suppressors that are frequently epigenetically inactivated in various tumor entities and linked to apoptosis, cell cycle control and microtubule stability. In this work, we concentrated on the newly identified putative tumor suppressor RASSF10. Methylation analysis reveals RASSF10 promoter(More)
Recently, we have identified a new putative tumor suppressor gene, RASSF1A (Ras association domain family 1A gene), located at human chromosome 3p21.3, the segment that is often lost in many types of human cancers. The RASSF1A promoter was shown to be frequently hypermethylated in various epithelial tumors, including small cell lung, breast, bladder,(More)