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PATHWAYS FROM GENOTYPE AND ENVIRONMENT TO MELANOMA

Award Number: R01CA088363
ORGANIZATION: NATIONAL CANCER INSTITUTE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 07/01/2000
PERIOD OF PERFORMANCE END DATE: 01/31/2013

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PATHWAYS FROM GENOTYPE AND ENVIRONMENT TO MELANOMA - DESCRIPTION (provided by applicant): For 20 years we have conducted large scale studies into the molecular genetics and epidemiology of melanoma and its risk factors, particularly nevus density which is more heritable than melanoma itself and therefore a better target for gene-finding. With NCI funds we recently followed up a population-based sample of 1,911 melanoma probands to update survival status and risk factor information; we have obtained DNA from all melanoma cases and a sample of unaffected relatives, and have done likewise in previously studied samples of melanoma cases in children (<14y), adolescents (14-19y) and older men (>50y). We now have DNA samples and risk factor information on 2,783 members of approximately 1,500 melanoma families. We also have >4000 DNA samples from adolescent twins and their family members for whom we have nevus counts and pigmentary phenotypes. From the latter study we recently published linkage to flat nevus density on 9p, 9q, 2p and 8q, replicated in one or more recent studies from UK, France (FR) and Netherlands (NL). To find causal variants under our linkage peaks and also in the rest of the genome we shall conduct a genomewide association scan for nevus density (GWAS). In Stage 1 we shall genotype extremes of the nevus density distribution (300 highest, 300 lowest, one individual per family) from our adolescent twins with 1 million SNPs using Illumina Hap1M arrays (>90% of the genome covered at r2>0.9). Arrays are enriched for SNPs in regions of copy number variation, which is plausibly implicated in nevus etiology. Different Bonferroni corrected alpha levels will be used to assess significance of the ~10,000 SNPs under our four nominated linkage peaks (5 x 10-6) and those in the rest of the genome (1.7 x 10-7). In Stage 2 the top 200 significant hits in linkage regions, and the top 200 in the rest of the genome will be typed in replication samples from the UK, FR and NL (N~3600) and in 1500 melanoma cases and 1500 controls from our familial melanoma study. In Stage 3, the top ~50 SNPs from a combined analysis of Stages 1 and 2 will be typed in the remainder of the adolescent nevus and familial melanoma studies (N=3,200). We shall perform within-family and case-control analyses for association of melanoma risk variables including status, age-at-onset, survival, and severity, with SNPs and environmental risk factors, stratified by familial risk and anatomic site of the melanoma. Similar analyses will be conducted for mediating variables such as nevus density, freckling, and pigmentation. We shall test for gene-gene interactions (epistasis) between SNPs of nevus genes and melanoma risk, and for gene-environment interactions of nevogenesis SNPs with measures of sun exposure, on melanoma risk. Relevance: A high mole count is the strongest risk factor for melanoma and our study has the power to find 80% of genes with effect sizes as small as 1% of variation in moliness. These in turn will be tested to assess their risk for melanoma, both singly and in combinations with other genetic and environmental risk factors. The costs of melanoma to society are considerable. In 1994, there were over 28,000 new cases of melanoma in the USA and a total of 6,680 people died from this disease. Incidence rates in Queensland are almost five times those in the United States. The aim of our research is to contribute to the alleviation of this disease burden, and it is our assessment that the potential benefits of this research greatly outweigh the costs.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2012 ( Subtotal = $117,259 )
2012	2012	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	300 Herston Road HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	10	2/27/2012	NON-COMPETING CONTINUATION	$117,259
														Subtotal = $117,259

Issue Date FY: 2011 ( Subtotal = $184,669 )
2011	2011	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	300 Herston Road HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	001	9	5/17/2011	NON-COMPETING CONTINUATION	$8,187
2011	2011	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	300 Herston Road HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	9	2/1/2011	NON-COMPETING CONTINUATION	$176,482
														Subtotal = $184,669

Issue Date FY: 2010 ( Subtotal = $190,379 )
2010	2010	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	300 Herston Road HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	8	1/20/2010	NON-COMPETING CONTINUATION	$190,379
														Subtotal = $190,379

Issue Date FY: 2009 ( Subtotal = $299,523 )
2009	2009	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	300 Herston Road HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	7	3/3/2009	NON-COMPETING CONTINUATION	$269,570
2009	2009	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	300 Herston Road HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	001	7	3/18/2009	NON-COMPETING CONTINUATION	$29,953
														Subtotal = $299,523

Issue Date FY: 2008 ( Subtotal = $292,942 )
2008	2008	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	BRAMSTON TERRACE HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	6	3/25/2008	COMPETING CONTINUATION	$292,942
														Subtotal = $292,942

Issue Date FY: 2005 ( Subtotal = $193,042 )
2005	2005	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	BRAMSTON TERRACE HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	5	8/12/2005	NON-COMPETING CONTINUATION	$193,042
														Subtotal = $193,042

Issue Date FY: 2004 ( Subtotal = $187,420 )
2004	2004	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	BRAMSTON TERRACE HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	4	8/27/2004	NON-COMPETING CONTINUATION	$187,420
														Subtotal = $187,420

Issue Date FY: 2003 ( Subtotal = $333,687 )
2003	2003	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	BRAMSTON TERRACE HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	3	8/15/2003	NON-COMPETING CONTINUATION	$333,687
														Subtotal = $333,687

Issue Date FY: 2002 ( Subtotal = $290,743 )
2002	2002	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	BRAMSTON TERRACE HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	2	9/17/2002	NON-COMPETING CONTINUATION	$290,743
														Subtotal = $290,743

Issue Date FY: 2001 ( Subtotal = $311,824 )
2001	2001	QUEENSLAND INSTITUTE OF MEDICAL RESEARCH	BRAMSTON TERRACE HERSTON	BRISBANE				AUS	Cancer Cause and Prevention Research	000	1	7/10/2001	NEW	$311,824
														Subtotal = $311,824

Grand Total All Awards = $2,401,488

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PATHWAYS FROM GENOTYPE AND ENVIRONMENT TO MELANOMA

Award Number: R01CA088363

ORGANIZATION: NATIONAL CANCER INSTITUTE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 07/01/2000

PERIOD OF PERFORMANCE END DATE: 01/31/2013

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