Project Title: Using functional studies to explore potential high
penetrance melanoma susceptibility genes identified using whole exome and genome sequencing.
The first paper was published in 2009, and a series of more recent papers have shown increased numbers of these low
penetrance melanoma susceptibility genes.
In any country, people who inherit more of these low
penetrance melanoma genes are more likely to get melanoma if they sun bathe.
In the majority of families with high
penetrance melanoma susceptibility genes however the family history will reveal melanoma predominantly.
The most frequent high
penetrance melanoma gene found to be mutated in melanoma families is CDKN2A and the protein produced by the gene is called p16.
Not exact matches
Genotype / phenotype and
penetrance studies in
melanoma families with germline CDKN2A mutations.
Geographical variation in the
penetrance of CDKN2A mutations for
melanoma.
It is possible that the co-inheritance of more than one such low
penetrance gene may result in more marked clustering of
melanoma in some families.
For
melanoma it is easiest to group susceptibility genes into rare high
penetrance genes and more common lower
penetrance genes but the truth is that this distinction is not absolute.
The hypothesis then, is that inheritance of these putative low
penetrance genes predisposes white skinned peoples to
melanoma but that as this predisposition is weak, there may be only one or occasionally two cases in the family.
It is also possible that families carrying these low
penetrance genes may have more cases of
melanoma if they live in areas of the world where the environmental exposures are more extreme such as Queensland: that is, as a result of gene / environment interaction.
There are other possible low
penetrance genes promoting susceptibility to
melanoma which Melanoma Genetics Consortium and others are ex
melanoma which
Melanoma Genetics Consortium and others are ex
Melanoma Genetics Consortium and others are exploring.
To find low
penetrance genes which increase the risk of
melanoma.