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. 2014 Oct 5;71(23):4577–4587. doi: 10.1007/s00018-014-1722-0

Fig. 2.

Fig. 2

FHIT loss-induced genome instability model for tumorigenic clonal expansion. Deletions in FHIT alleles occur due to FRA3B fragility causing loss of Fhit protein expression. Fhit loss triggers replication stress, followed by stress-induced chromosomal instability. Chromosomal instability facilitates the acquisition of oncogenic mutations followed by selective clonal expansion