the ‘uniqueness’ of cancer' by professor graham mann - sick or treat sessions
TRANSCRIPT
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Official Opening9 October 2014
Graham MannCentre for Cancer ResearchWestmead Institute for Medical Research
Melanoma Institute Australia
Cancer: what we know… and what we don’t
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Cancer – the big picture (Australia 2011)
• 119,000 people newly diagnosed each year
• 43,000 deaths• burden >$100b
Commonest:• Women: breast, bowel,
melanoma, lung• Men: prostate, bowel,
melanoma, lung
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Australian Melanoma Statistics and Trends
1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 20150
2
4
6
8
10
12
Age-standardised incidence (to 2011) and mortality (to 2012) rates by year
M. inc.
F. inc.
M. mort.
F. mort.
Year
Age-
stan
dard
ised
rate
Source: Australian Institute of Health and Welfare
Source: Australian Institute of Health and Welfare
Australian Institute of Health and Welfare (AIHW) 2015. Australian Cancer Incidence and Mortality (ACIM) books: Melanoma. Canberra.
• 3rd most common cancer in men and women, 4th overall• commonest cancer in younger adults
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What is cancer?• A group of related cells that is
growing and multiplying, if …• some of them never stop• and some can move elsewhere
in the body
They are our own cells, malfunctioning• growing when they should
have stopped• living longer than they are
supposed to• moving out of the places
where they belong
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How?All these normal functions are controlled in cells by genes, e.g.• cell multiplication genes • lifespan and cell death genes• genes that keep a cell where it
should be
• we have about 20,000 genes
They are our own cells, malfunctioning• growing when they should
have stopped• living longer than they are
allowed to• moving from the places
where they belong
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What causes cancer?All these normal functions are controlled in cells by genes e.g.• cell multiplication genes • lifespan and cell death genes• genes that keep a cell where it
should be
Cancer is caused by things that damage (mutate) genes (DNA)• some chemicals• some kinds of radiation• some infections• wear and tear (oxygen)
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M. Lawrence 1st Annual TCGA Scientific Symposium, 2011
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Australian Melanoma Statistics and Trends
1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 20150
2
4
6
8
10
12
Age-standardised incidence (to 2011) and mortality (to 2012) rates by year
M. inc.
F. inc.
M. mort.
F. mort.
Year
Age-
stan
dard
ised
rate
Source: Australian Institute of Health and Welfare
Source: Australian Institute of Health and Welfare
Australian Institute of Health and Welfare (AIHW) 2015. Australian Cancer Incidence and Mortality (ACIM) books: Melanoma. Canberra.
• 3rd most common cancer in men and women, 4th overall• commonest cancer in younger adults
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Why me?• Unlucky• Ageing• Exposed to more DNA damage, or DNA
damage to a particular site• (Rarely) a strong inherited predisposition
to cancer• (Commonly) a genetic background that
raises the odds
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Bishop et al. Nature Genetics 2011
Common genetic riskDNA markers found more often in people with melanoma
MC1R
ATMCASP8
TYR
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… different tumours of the same type
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M. Lawrence 1st Annual TCGA Scientific Symposium, 2011
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International Cancer Genome Consortium(ICGC)
Nature. 2010 Apr 15;464(7291):993-8
Original goal: sequence 500 tumours from 50 different cancer typesInternational Cancer Genome Consortium
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The Cancer Genome Atlas Network. Cell 2015
Diversity and commonality in 311 melanomas
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The Cancer Genome Atlas Network. Cell 2015
Genes, pathways, targets
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The Cancer Genome Atlas Network. Cell (in press)
Immune response
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What works?PREVENTION – but there are limits• new hope: individualised
EARLY DETECTION• new hope: target screening by risk
DESTRUCTION, if you can get it all• Surgery – newer, better• Radiotherapy – newer, better
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What works?
NEW FRONTIERS• Drugs that target the specific
mutations driving the tumour: ”personalised therapy”
• Overcoming the way tumours hide from the immune system
• They work!
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PLX4720 co-Structure with kinase domain of BRAFV600E (Tsai J et al. 2008 PNAS)
New generation of kinase inhibitors w specificity for oncogenic BRAF (V600E)
from cancer genomics “1.0” 2002
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Why isn’t it fixed yet?Getting there …• it is fixed for some• we understand what works and
(mostly) why things fail• the end is in sightBut …• our system can fall short• more targets = more drugs• early days for immune therapy
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Thanks and questions
Casey Dunlop CRUKscienceblog.cancerresearchuk.org
Bernie Stewart IARCThe Conversation