THE FUTURE OF CANCER CARE · GENETIC TESTING & PERSONALIZED MEDICINE Genetic testing can: – look...
Transcript of THE FUTURE OF CANCER CARE · GENETIC TESTING & PERSONALIZED MEDICINE Genetic testing can: – look...
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THE FUTURE OF CANCER CARE
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Columbia University, Herbert Irving Comprehensive Cancer Center & the National Cancer Institute, National Outreach Network, Community Health Educator, Andria Reyes, MA
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INTRODUCTIONThe purpose of this program is to help you
understand advances in science that may improve your health.
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INTRODUCTION
In this workshop we will learn about…
1. GenesWhat are genes?What can our genes tell us about our health?What can our genes tell us about disease?
2. Personalized medicineWhat is it?Why would it be important to me?How does it work?
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• All living things - people, plants, and animals—are made up of cells
INSIDE OUR CELLS
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INSIDE OUR CELLS
• Almost every cell in our body has a nucleus
• The nucleus contains chromosomes
• Chromosomes contain DNA
• In the DNA, we will find genes, which determine our characteristics
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Genes determine what characteristics we inherit such as what we look like and how we react to things we come in contact with, like;
• the foods we eat
• the germs we encounter
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INSIDE OUR CELLS
• the pollutants to which we are exposed
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To learn about your genes, doctors need to collect some of the cells from your body.
These samples are called biospecimens.
Blood sampleSaliva sample
Tissue taken during a biopsy
INSIDE OUR CELLS
Urine sample
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GENETICS
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The science of our genes
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Have you ever wondered, “Why do I have this hair color?” or “Why do I have my Mom’s eyes or my Dad’s
nose?”
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GENETICSGenetics is the study of how different characteristics
are passed down from grandparents to parents to children.
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GENETICS
• Each of our parents gives us some of their genes
• The way our parents’ genes combine together makes each of us unique
• Unless we have an identical twin, not even our full brothers or sisters have the same combination of genes that we have
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GENETICS
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Genetics explains why family members look alike and have common features
and why some diseases run in families.
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GENETICS
Small differences in our genes are why people, animals and plants look different.
These differences are called genetic variation.
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GENETIC VARIATIONThere are genetic variations that we can see…
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GENETIC VARIATIONAnd genetic variations that we cannot see. For example, how our bodies respond to things like
medicines or foods.
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Peanut allergy Allergy to medicine
Lactose intolerance
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GENETIC MUTATION
Changes to our genes that can cause disease
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GENETIC MUTATIONWhen one or more genes in the DNA in a cell is changed or becomes damaged, it is said to be
mutated.
Genetic mutation is a type of variation that can lead to disease.
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GENETIC MUTATION
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• Genes have “on” and “off” switches that tell the cell to either multiply or not multiply.
• When the “on” and “off” switches of a cell become damaged, a cell can multiply out of control and become a tumor.
GENETIC MUTATION
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GENETIC MUTATIONCancer happens when a damaged cell from
mutated genes is not removed by the body and continues to multiply out of control because the
“on” and “off” switches are damaged.
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Tumor
A cluster of cancer cells can form a tumor.
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GENETIC MUTATION
Genetic mutations occur often; usually our body is able to correct them so that they do not cause
us any harm.
Gene mutations can make us susceptible to disease. Being susceptible means that we have
a greater chance of getting a disease.
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• When genes are mutated they have been changed or damaged and no longer work the way they should.
• There are THREE types of genetic mutation:– Inherited– Acquired– Sporadic
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GENETIC MUTATION
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INHERITED MUTATION• The mutated genes that can cause some breast cancers can
also be inherited.
• When your doctors ask you about which diseases run in your family, they are asking you about your family history.This is the doctor’s way of knowing about your inherited mutations
• Your doctor may also recommend genetic testing
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ACQUIRED MUTATION• The environment that can damage or mutate
our genes, some examples:
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A sporadic mutation is a genetic mutation that happens by chance and may or may not be inherited.
A disease that occurs with no family history would be considered sporadic.
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SPORADIC MUTATION
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• The immune system is a complicated network of cells, tissues and organs. The substances made by the immune system help the body fight infections and other diseases.
• Sometimes the immune system can get rid of mutated cells, other times it cannot.
• A cancer treatment called Immunotherapy uses certain parts of a person’s immune system to fight diseases such as cancer.
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IMMUNE SYSTEM
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Over the last 20 years, there have been new scientific discoveries; this new information has helped scientists use technology to “read” the
information in our genes.
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PERSONALIZED MEDICINE
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PERSONALIZED MEDICINE
Personalized medicine, also known as precision medicine, is not a “medicine”, it is a new way to look at disease prevention and treatment that
can be tailored specifically to you.
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PERSONALIZED MEDICINE
Personalized medicine takes into account the differences in our genes, the things that we are
exposed to, and the way we live.
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The information provided by our genes, family history and lifestyle can be used to help us
understand our risk of diseases.
This information can help doctors determine the best treatment for us.
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PERSONALIZED MEDICINE
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PERSONALIZED MEDICINE
If you are diagnosed with cancer, personalized medicine uses information about the genes in
cancer tumor to find the best way to treat cancer.
There are many different types of cancers, however, all cancers to not yet have fully
developed genetic tests .
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PERSONALIZED MEDICINE
Before personalized medicine, most cancers were thought to be the same and people were
given the same type of treatment
For some people, the treatment worked. For other people, the treatment did not work
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PERSONALIZED MEDICINEThere are four ways that people can react to cancer
treatment. Let’s imagine that all of the people in the bucket have the same disease and receive the
same treatment.
Patient group
Medicine cures disease and has no side effects
Medicine cures disease and has side effects
Medicine does not cure disease, can make the disease worse, and has no side effects
Medicine does not cure disease, can make the disease worse, and has side effects
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PERSONALIZED MEDICINE
Now researchers and doctors know that the same type of cancer, for example breast cancer,
does not act the same in all people.
That is because cancer in different people can have different combinations of altered genes.
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PERSONALIZED MEDICINE
In the future, researchers and doctors hope to use information about our genetic differences to understand:
– who is at risk for getting certain cancers, and– which cancer treatments will work and which will
not.
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PERSONALIZED MEDICINE
By learning about PERSONALIZED MEDICINE
andGENETIC TESTING
we can make better decisions about our health.
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GENETIC TESTING & PERSONALIZED MEDICINE
Knowledge of our genetics to prevent or treat disease
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GENETIC TESTING AND FAMILY HISTORY
• Genetic testing is often based on personal or family history of disease.
• Before getting genetic testing, p• people are asked:
– Have you ever been diagnosed with cancer?– Have any of your family members been diagnosed?– Have you or a member of your family been told they
might be at a high risk for developing cancer?
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GENETIC TESTING & PERSONALIZED MEDICINE
Genetic testing can:– look for DNA mutations that can cause
disease, and – find a mutation for a disease long
before someone has symptoms of the disease
Genetic testing on a tumor can:– help doctors choose the best treatments– tell doctors which treatments will not work
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WHAT RESEARCHERS STILL DON’T KNOW
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• They do not yet know all of the mutations that cause cancer
• They do not know all of the causes of cancer
• Only some cancers have tests that would find disease before it happens
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HOW DO WE USE THE INFORMATION THAT WE HAVE LEARNED?
• What are some things that we can do to reduce our chances of getting cancer?
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• We can:– Eat healthier– Get more exercise (30 minutes, 3 times a week)– Maintain a healthy weight– Avoid things like tobacco smoke and too much sun on your skin– Report our family hiGet regular medical checkups– story of disease
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• Personalized medicine is important for cancer care because…
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HOW DO WE USE THE INFORMATION THAT WE HAVE LEARNED?
- Doctors may be able to customize treatment to each patient’s needs
- Doctors can learn more about the types of cells in the tumor and use medicines to treat or destroy the cancer cells
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HOW DO WE CONTINUE TO LEARN ABOUT DISEASES AND TREATMENTS?
CLINICAL TRIALS• Clinical trials are how doctors find better
treatments for diseases such as cancer. They also help doctors answer other questions, such as how to prevent disease or manage symptoms and side effects.
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QUESTIONS?
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