nci’s division of cancer epidemiology and genetics neil caporaso, m.d. chief, genetic epidemiology...
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NCI’s Division of Cancer Epidemiology and Genetics
Neil Caporaso, M.D.Chief, Genetic Epidemiology Branch
DCEG, NCIwww.dceg.cancer.gov
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Division of Cancer Epidemiology and GeneticsDiscovering the Causes of Cancer
national and international intramural, population-based research
Mission:
* broad-based, high quality, high impact research to uncover causes of cancer and means of its prevention.
* national and international perspective.
* develop research resources and strategic partnerships in molecular epidemiology across NCI, NIH and the research global community
* train the next generation of scientists in cancer epidemiology and related areas.
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National Cancer Institute
IntramuralDivisions
Extramural Divisions
DCEG CCR
~205 Investigators8 Branches/1 Lab
69 Principal Investigators
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National Cancer Institute (NCI)
Division of Cancer Epidemiology and Genetics
Genetic Epidemiology BranchOther Branches focus onNutrition, Hormones, Infection,Occupation, Statistics, Radiation
Find the CAUSE!
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Benign monoclonal B-cell lymphocytosis (BMBCL) Han 1984Idiopathic persistent lymphocytosis Bassan 1988B-monoclonal lymphocytosis undetermined significance Garcia 1989Smoldering CLL Montserrat 1988B-cell monoclonal lymphocytosis (BCML) Marti 1993Sub-clinical BCLL B-cell monoclonal lymphocytosis Maiese 1997CD5 negative BMLUSWang 2002
CLL-like immunophenotype (CLUS) Rawstron 2
Why have an intramural program?Example 1
In the 1980/90s many groups independently reportedthat normal patients had excess clonal B lymphocytes in the blood.
Each investigator gave it a different name
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2
Why have an intramural program?
2003 2005 2007 2010
Monoclonal B Cell Lymphocytosis (MBL)
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Family Studies were not popular
Early ideas in human genetics:
If it’s genetic it’s rareIf its genetic it’s only in familiesIf it’s genetic you can’t change itIf it’s genetic there is no treatmentIf it’s genetic the environment doesn’t matter
ALL THESE ASSUMPTIONS WERE WRONG
Example 2
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Family studies by our group…..
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Family studies by our group…..
dysplastic nevus
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Most Cancer is due to the Environment
Dramatic differences in cancer rates by geography and over time are only compatible with extrinsic environmental causes
Established by a vast body of descriptive, ecological, and analytical epidemiology
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Per-Capita Consumption of Different Forms of Tobacco in The U.S. 1880-2003
CigarettesCigars
Pipe/roll your own
Chewing
Snuff
0
2
4
6
8
10
12
14
1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000Year
Poun
ds o
f Tob
acco
Per
-Cap
ita
Cigarettes Cigars Pipe/roll your own Chewing Snuff
Data Source USDADecades in the 1900s
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Relative Risks of Lung Cancer According to Years Since Quitting Smoking among Males in Three Cohort Studies of Smokers
0
2
4
6
8
10
12
14
16
18
20
0 1-4 5-9 10-14 15-19 20+
Years Since Quitting Smoking
Re
lati
ve
Ris
k
British Physicians U.S. Veterans American Cancer Society
Lung cancer rate drops after smoking cessation
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Why here?
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Copper Smelter, Montana
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Traditional epidemiology
E D
Exposure Disease
Tobacco Lung Cancer
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Molecular epidemiology
E DID EBE ASF ED
G
exposure internal dose
early biological effect altered structure or function
early disease disease
Adding biomarkers allows us to investigate
genes and mechanisms
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Integrative epidemiology
E DID EBE ASF ED
Outcome
G
B O
Behavior
exposureinternal dose
early biological effect altered structure or function
early disease
disease
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• Lifestyle risk factors (hormonal and nutritional exposures)
• Environmental and occupational exposures
• Infectious agents
• Radiation
• Statistics and methods development
• Genetic predisposition
• Genome-wide association studies
and Next-gen sequencing
DCEGAreas of Investigation
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~100 postbaccalaureate, predoctoral,
postdoctoral and clinical trainees
~25 summer students
26 tenure-track investigators
43 senior investigators
DCEGStaff and Trainee Profile
36 staff scientist/staff clinicians
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DCEGSelected Discoveries
Hormone replacement and breast/ovarian cancer
Benzene and formaldehyde and leukemia/lymphoma
Role of p53 gene in Li-Fraumeni syndrome
Gail breast cancer risk model
Cancer risk among atomic bomb survivors
No link between breast implants – breast cancer, cell phones – brain cancer, or power-lines – childhood leukemia
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Personal view- Our Branch
Selected Discoveries (GEB/2014)
Largest study of genes and lung cancer
POT1- gene associated with familial melanoma
Methylome and lung cancer
The “Time to First Cigarette” is a critical determinant of lung cancer risk
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DCEGWhat we look for in early career investigators
• Great science: important work, published in top-notch journals
• Good quality work: strong rationale and research methods
• Depth and breath of scientific knowledge
• Evidence of creativity, innovation, and originality – person is moving the field forward
• Collaborative, interdisciplinary spirit
• Capacity for independence and leadership
• Ability and enthusiasm to mentor
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Personal viewWhat we look for in early career investigators
3 qualities
TRAINING
MOVIVATION and CHARACTER
HARD WORK