outline of disease process Flashcards
what is the definition of monoclonal?
arising from a single cell
what are the 3 causes of cancer development (initiation)
chemical
physical
viral
what are the 2 main contributing factors of the promotion stage of cancer?
growth factors
oncogenes
what characterises the progression stage of cancer development?
metastasis
what are the three stages of cancer development?
initiation
promotion
progession
what is autocrine stimulation?
when the cell carries the receptors and secretes the growth factor that causes cancer, cell then escapes normal control mechanisms for growth
what is paracrine stimulation?
when the growth factor acting on a cell are produced locally by the cell or its immediate neighbours