Review Article

Common Fragile Site Tumor Suppressor Genes and Corresponding Mouse Models of Cancer

Table 1

Synopsis of CFS tumor suppressor genes and their mouse models of cancer.

GeneHuman tumorsAnimal modelTreatmentInduced phenotypeSpontaneous phenotype

FHIT*
3p14.2
Deletions
translocations
Head and Neck, Lung, Larynx, Liver, Pancreas, Digestive Tract, Urinary Tract, Prostate, Spleen, Bone MarrowFHIT KORadiationIncreased multiorgan tumor involvement respect WT, but equal tumorigenesis
FHIT KOB(a)P
(Benzo(a)pyrene)
KO and WT mice were equally sensitive; FHIT+/− mice showed uterine preneoplasias
FHIT KOECS (Environmental cigarette smoke)After exposure, FHIT loss was observed also in WT mice. WT and FHIT+/− mice did not show significant differences
FHIT KOBBN (N-butyl-N-hydroxybutyl) nitrosamine)28% of FHIT−/− and 46% of FHIT+/− versus 8% of WT mice developed bladder invasive carcinomas
FHIT KO X Vhl KOLung adenocarcinomas
in 44%
FHIT KO X Vhl KODMN (Dimethyl-nitrosamine)Lung adenocarcinomas in 100%
FHIT+/− X HER2/neu (mammary tumor promoter)Mammary tumors
in 100%
FHIT KO X Nit KONMBA (N-nitroso-methyl-benzylamine)~100% more gastric tumors than FHIT−/− alone

WWOX
16q23.2
Deletions
translocations
Lung, Digestive Tract, Liver, Pancreas, Breast, Ovarian, Prostate, CNS, Urinary Tract, Bone, Thyroid, Bone MarrowWwox KOPostnatal lethality for −/− mice.
Surviving mice showed metabolic disorders and developed femoral focal lesions resembling to osteosarcoma. +/− mice showed higher incidence of lung and mammary tumors than WT mice
ENU (Ethyl-Nitroso- Urea)80% of +/− mice developed lymphoblastic leukemia, lung, mammary, and liver tumors
NMBA (N-nitroso-methyl-benzylamine)~100% of +/− mice with forestomach tumors
Wwox Hypomorphic strain (very low expression of Wwox)Short lifespan. Females exhibited high incidence
of lymphomas

PARK2
6q26
Deletions
translocations
Ovary, breast, esophagus, liver, colon, lung, renal, CNS, hematopoieticPark2 KOMotor and cognitive defects
Park2 X Apc4-fold increase in adenomas than control mice; all stages neoplastic lesions

CAV-1
7q31.2
Deletions
translocations
Downregulated in: ovarian, lung, mammary tumors
Upregulated in: prostate, bladder, thyroid, esophageal carcinomas
Cav-1 KONormal. Reduction of
Cav-2 expression
Cav-1 KODMBA (7,12-dimethyl
benzanthracene)
Development of epidermally derived tumors
Cav-1 X MMTV-PyMTAcceleration of the development of mammary lesions
Cav-1 X TrampDecreased incidence in prostate tumors and loco-regional and distal metastasis

TES
7q31.2
Deletions
translocations
Head and Neck, gastric, breast, hematopoietic, prostate, CNSTes KONormal
Tes KoNMBA(N-nitroso-methyl-benzylamine)High incidence of forestomach tumors

*FHIT findings include the period 2005–2010. Older data were previously reviewed.