RGD Reference Report - Gender-specific polygenic control of ethylnitrosourea-induced oncogenesis in the rat peripheral nervous system. - Rat Genome Database

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Gender-specific polygenic control of ethylnitrosourea-induced oncogenesis in the rat peripheral nervous system.

Authors: Koelsch, BU  Fischer, C  Neibecker, M  Schmitt, N  Schmidt, O  Rajewsky, MF  Kindler-Rohrborn, A 
Citation: Koelsch BU, etal., Int J Cancer. 2006 Jan 1;118(1):108-14.
RGD ID: 1559300
Pubmed: PMID:16003739   (View Abstract at PubMed)
DOI: DOI:10.1002/ijc.21287   (Journal Full-text)

The inbred BD rat strains constitute a model system for analysis of the genetic basis of susceptibility or resistance to the development of neural tumors, as they exhibit distinct strain-specific differences regarding the sensitivity to tumor induction by the alkylating carcinogen N-ethyl-N-nitrosourea (EtNU). Among the different BD strains, BDIX and BDIV rats, respectively, are either highly susceptible or entirely resistant to the development of EtNU-induced malignant schwannomas of the peripheral nervous system (PNS), predominantly of the trigeminal nerves. We have previously mapped one locus associated with susceptibility/resistance to schwannoma induction to the telomeric third of chromosome 10 (Mss1) in segregating (BDIX x BDIV) crosses. We report on the genetic mapping of 6 further loci controlling tumor incidence or survival time on chromosomes 1 (Mss2), 3 (Mss3), 6 (Mss4), 13 (Mss5) and 15 (Mss6) as well as on chromosome 10 (Mss7) close to the centromere. Interestingly, most of these loci mediate gender-specific effects of variable strength ranging from minor influences on tumor development to complete tumor resistance. The gender specificity is reflected by the fact that male (BDIX x BDIV) F2 rats exhibit a 2-fold higher incidence of EtNU-induced schwannomas than females as well as a shorter survival time. A number of human nervous system tumors too arise with a marked gender bias. Genes mediating gender-specific predisposition of developing malignant schwannomas in the rat may be relevant for the human individual risk of developing nervous system tumors.



Disease Annotations    
neurilemmoma  (IAGP)

Phenotype Annotations    

Mammalian Phenotype
Objects Annotated

QTLs
Schws1  (Schwannoma susceptibility QTL 1)
Schws2  (Schwannoma susceptibility QTL 2)
Schws3  (Schwannoma susceptibility QTL 3)
Schws4  (Schwannoma susceptibility QTL 4)
Schws5  (Schwannoma susceptibility QTL 5)
Schws6  (Schwannoma susceptibility QTL 6)
Schws7  (Schwannoma susceptibility QTL 7)


Additional Information