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- Dokumenttyp:
- Journal Article; Article
- Autor(en):
- Port, M; Boltze, C; Wang, Y; Röper, B; Meineke, V; Abend, M
- Titel:
- A radiation-induced gene signature distinguishes post-chernobyl from sporadic papillary thyroid cancers.
- Abstract:
- Port, M., Boltze, C., Wang, Y., Röper, B., Meineke, V. and Abend, M. A Radiation-Induced Gene Signature Distinguishes Post-Chernobyl from Sporadic Papillary Thyroid Cancers. Radiat. Res. 168, 639-649 (2007).We investigated selected gene targets to differentiate radiation-induced papillary thyroid cancers (PTCs) from other etiologies. Total RNA was isolated from 11 post-Chernobyl PTCs and 41 sporadic PTCs characterized by a more aggressive tumor type and lacking a radiation exposure history. RNA from 10 tumor samples from both groups was pooled and hybridized separately on a whole genome microarray for screening. Then 92 selected gene targets were examined quantitatively on each tumor sample using an RTQ-PCR-based low-density array (LDA). Screening for more than fivefold differences in gene expression between the groups by microarray detected 646 up-regulated and 677 down-regulated genes. Categorization of these genes revealed a significant (P < 0.0006) over-representation of the number of up-regulated genes coding for oxidoreductases, G-proteins and growth factors, while the number of genes coding for immunoglobulin appeared to be significantly down-regulated. With the LDA, seven genes (SFRP1, MMP1, ESM1, KRTAP2-1, COL13A1, BAALC and PAGE1) made a complete differentiation between the groups possible. Gene expression patterns known to be associated with a more aggressive tumor type in older patients appeared to be more pronounced in post-Chernobyl PTC, thus underlining the known aggressiveness of radiation-induced PTC. Seven genes were found that completely distinguished post-Chernobyl (PTC) from sporadic PTC.
- Zeitschriftentitel:
- Radiat Res
- Jahr:
- 2007
- Band / Volume:
- 168
- Heft / Issue:
- 6
- Seitenangaben Beitrag:
- 639-49
- Sprache:
- eng
- Volltext / DOI:
- doi:10.1667/RR0968.1
- PubMed:
- http://view.ncbi.nlm.nih.gov/pubmed/18088181
- Print-ISSN:
- 0033-7587
- TUM Einrichtung:
- Klinik und Poliklinik für RadioOnkologie und Strahlentherapie
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