RGD Reference Report - Five quantitative trait loci affecting 4-nitroquinoline 1-oxide-induced tongue cancer in the rat. - Rat Genome Database

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Five quantitative trait loci affecting 4-nitroquinoline 1-oxide-induced tongue cancer in the rat.

Authors: Tanuma, JI  Fujii, K  Hirano, M  Matsuuchi, H  Shisa, H  Hiai, H  Kitano, M 
Citation: Tanuma JI, etal., Jpn J Cancer Res 2001 Jun;92(6):610-6.
RGD ID: 634723
Pubmed: (View Article at PubMed) PMID:11429048

In our previous study, Dark-Agouti (DA) rats were found to be highly susceptible to 4-nitroquinoline 1-oxide (4NQO)-induced tongue carcinoma (TC), whereas Wistar / Furth (WF) rats were barely susceptible. Interval mapping analysis of reciprocal backcross rats showed two quantitative trait loci (QTL) on rat chromosomes (RNO) 1 and 19. In the present study, a composite interval mapping analysis was applied to 4NQO-induced TC in 130 (DA x WF) F2 rats, demonstrating five independent QTL, Tongue squamous cell carcinoma 1 - 5 (Tscc1 - 5), responsible for phenotypic differences in the size and number of TCs in the two strains. Two of these QTL were mapped on RNO1, and the others were mapped on RNO4, 14, and 19. The DA allele at these loci consistently yielded semidominant susceptibility to TC. Out of the five loci detected in this F2 generation, Tscc1 and 2 were identical to Stc1 and Rtc1 described in our previous study, but the other three were novel. We propose a new nomenclature consistent with their function. Genome-wide screening of the F2 progeny also suggested the presence of three additional QTL on RNO5, 6, and 10. The possible roles of these loci in tongue carcinogenesis are discussed.

Annotation

Disease Annotations    
Tongue Neoplasms  (IAGP,IDA)

Phenotype Annotations    

Mammalian Phenotype
Objects Annotated

QTLs
Tcas10  (Tongue tumor susceptibility QTL 10)
Tcas2  (Tongue tumor susceptibility QTL 2)
Tcas3  (Tongue tumor susceptibility QTL 3)
Tcas4  (Tongue tumor susceptibility QTL 4)
Tcas5  (Tongue tumor susceptibility QTL 5)
Tcas6  (Tongue tumor susceptibility QTL 6)
Tcas8  (Tongue tumor susceptibility QTL 8)
Tcas9  (Tongue tumor susceptibility QTL 9)

Objects referenced in this article
0 DA.WF-(D1Mgh21-D1Mgh10)(D4Mit11-Nos3)(D1Mit1-D1Mit3)/Kop null All species
0 DA.WF-(D1Mgh21-D1Mgh10)(D4Mit11-Nos3)/Kop null All species
0 DA.WF-(D1Mit1-D1Mit3)/Kop null All species
0 WF.DA-(D19Mit1-D19Mit6)/Kop null All species

Additional Information