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Therapeutic Options Flashcards

1
Q

What do therapeutic options for cancer involve?

A

Both prevention and treatment

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2
Q

What are prevention options for cancer?

A

Environment/behaviour changes

Diet

Screening

Genetics

Medication/vaccination

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3
Q

What are treatment options for cancer?

A

Surgery

Radiotherapy

Systematic therapy

Immunotherapy

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4
Q

What is immunotherapy?

A

Type of cancer treatment that boosts the body’s natural defences to fight cancer

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5
Q

What does evidence suggest colorectal cancer is increased with the consumption off?

A

Red meat

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6
Q

What does evidence suggest breast cancer is increased with the consumption of?

A

Saturated fat

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7
Q

What is the current advice for diet?

A

Eat 5 or more portions of fruit and vegetables per day

Avoid obesity

Regular exercise (30 mins a day)

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8
Q

What are the 2 classes of screening, in terms of societies optionions?

A

High quality research evidence

More controversial

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9
Q

What are examples of high quality research evidence screening?

A

Cervical cancer (smear test)

Colorectal cancer (blood in faeces)

Breast cancer (mammography)

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10
Q

What are examples of controversial screening?

A

Prostate cancer (PSA blood test)

Lung cancer (MR/CT screening)

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11
Q

What are examples of hereditary genes that increase cancer risk?

A

FAP increase colorectal cancer

BRCA1 and BRCA2 increasing breast cancer

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12
Q

What is a very controversial form of prevention?

A

Chemo-prevention

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13
Q

What is chemoprevention useful for?

A

Primary such as oesphagael cancer and breast cancer

Secondary such as head and neck or lung cancer

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14
Q

What is a common kind of chemo-prevention that is not believed to be of much use?

A

Anti-oxidants

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15
Q

What kind of cancer is heavily linked with lung cancer, meaning if you have one you are likely to have the other?

A

Head and neck cancer

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16
Q

What are the 2 general kinds of treatment?

A

Local or regional

Systematic

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17
Q

What are examples of local or regional treatments?

A

Surgery

Radiotherapy

Ablation (radiowaves or freezing)

Isolated limb perfusion (chemotherapy directly to the limb)

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18
Q

What is ablation?

A

Radio waves or freezing

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19
Q

What is isolated limb perfusion?

A

Chemotherapy directly to the limb

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20
Q

What are kinds of systematic treatments?

A

Hormonal therapy

Chemotherapy

Immunotherapy

Whole body irradiation

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21
Q

What can staging tell us?

A

Where is the cancer

What kind of cancer

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22
Q

What is used to tell us where a cancer is?

A

Examination

Imaging

23
Q

What is used to tell us the kind of cancer?

24
Q

What does surgery need?

A

Anatomical clearance (complete removal of the tumour)

25
26
What is anatomical clearance?
Complete removal of the tumour
27
What can radiotherapy do?
Treat inoperable lesions Make surgery more possible Maintain function or appearance
28
What does radiotherapy need, just like surgery?
Complete anatomical coverage
29
What are the 5 R's of radiobiology?
Radio sensitivity (some tumours are not sensitive to treatment) Repair (no breaks does not allow the tumour to grow so improves survival) Re-population Re-oxygenation (oxygen makes cells more sensitive to treatment) Re-assortment (tumours are least sensitive during the DNA replication stage of the cell cycle
30
When are tumours least sensitive to radiotherapy?
During the DNA replication stage of the cell cycle
31
Why is re-oxygenation important for radiotherapy?
Oxygen makes cells more sensitive to treatment
32
What is pallation?
Care that makes you feel better even though it can't sure you, used for terminally ill patients
33
What is radiotherapy used for in pallation?
Pain Bleeding Swollen limbs
34
What is systematic treatment used for?
Widespread disease
35
What is a possible side effect of systematic treatment?
Widespread toxicity, the dose required to get the desired effect (kill the tumour) has unavoidable side effects due to being high
36
What does hormone treatment have the potential to be?
Very specific
37
What does cytotoxic mean?
Toxic to living cells
38
What are cytotoxic drugs used for?
Curative Pallative Adjuvant (has surgery but at risk of reoccurence) Neoadjuvant (treatment before surgery to shrink the tumour)
39
What is adjuvant in terms of the use of cytotoxic drugs?
Has surgery but is at risk or reoccurance
40
What is neoadjuvant in terms of the use of cytotoxic drugs?
Treatment before surgery to shrink the tumour
41
What are specific therapies based on?
Molecular science
42
What do specific therapies target?
Intracellular growth control points
43
What is an example of a specific therapy we can create?
Artificial antibodies that cannot exist in nature, such as ones that are bifunctional and can bring cells together
44
What are examples of immune therapies?
Nonspecific/innate Specific Monoclonal antibodies Programmed cell death pathway (PD-1) Chimeric antigen receptor (CAR) cells
45
What do programmed cell death pathways (PD-1) use?
Immune cells to attack cancer cells
46
What is chimeric antigen receptor (CAR) T cells?
Artifical T cell receptors to give a specific cell killing function directly againt cancer cells (stops cancer cells hiding from the immune system)
47
What stops cancer cells hiding from the immune system?
Chimeric antigen receptor (CAR) T cells
48
What does immunotherapy need to be?
Precise as the immune cells will keep diving and will always be present, and the wrong receptor is used they will attack healthy tissue
49
What will happen if the wrong receptor is used in immunotherapy?
The immune cells could attack healthy tissue
50
How can cancer cells hide from the immune system?
Due to being self cells (antigen binds to self-cell receptor on T cell)
51
How do CAR T cells prevent cancer from binding to self-receptors and hiding from the immune system?
Bind to cancer cells antigen with the forign receptor and destroy them
52
What does CAR T cells being successful depend on?
Mutation burden of cancer Immunogenicity of neoantigens
53
What is clinical research important for?
Determining what treatments are effective for who and making them even better
54
Why don't all people with the same condition respond to the same treatment?
Due to unique factors such as genetics and what bacteria normally live in your gut

principles of disease (45 decks)

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