Lecture 13

1.
What causes cancer?
Abnormalities in DNA
2.
Where do genetic faults in DNA come from?
Carcinogens, replication errors, inherited
3.
What do DNA faults do?
Activate oncogenes, inactivate tumour suppressor genes
4.
What are common characteristics of cancer cells?
Evading apoptosis, self sufficiency in GFs, insensitivity to antigrowth signals, tissue invasion and metastasis, unlimited replication potential, sustained angiogenesis
5.
What is the pathphysiological process of cancer?
Growth and invasion, metastasis, paraneoplastic effects
6.
What are the top 5 cancers?= =Prostate, colon, breast, melanoma, lung
7.
What effect did mustard gas have on cancer?
Regression (1942)
8.
What class of cancer drugs rose from mustard gas?
Alkylating agents
9.
What cured choriocarcinoma in 1958?
Methotrexate
10.
What was shown to cure testicular cancer in 1978?
Cisplatin
11.
What was the first targeted therapy approved in 1998?
Herceptin
12.
What causes chronic myelogenous leukaemia?
Translocation of genetic material from chromosome 9 to chromosome 22
13.
What is the target therapy for chronic myelogenous leukaemia?
Imatinib
14.
What do cytotoxic T lyphocyte antigen 4 (CTLA-4) and programmed death 1 (PD-1) normally do?
Suppress anti tumour T cell immune cytotoxicity
15.
How do monoclonal antibodies affect CTL-4 and PD-1?
Bind and inhibit their action
16.
What are side effects of monoclonal antibodies?
Colitis, dermatitis, endocrinopathy
17.
What are adverse effects of DNA mutagenesis?
Cancer
18.
What are adverse effects of sex hormone deficiency?= Impotence, flushing
19.
What are adverse effects of blocking GFRs?
Skin rash, diarrhoea
20.
What are adverse effects of autoimmunity?
Colitis, dermatitis, endocrinopathy