Haem- malignancy Flashcards
leukaemia
a group of blood cancers with an increase in white blood cells
chronic myeloid leukaemia
Proliferation of myeloid cells - granulocytes and their precursors, other lineages (platelets)
cytogenetic change that is characteristic of CML
Philadelphia chromosome- t(9:22)
Philadelphia chromosome results in a new gene-
BCR-ABL1
three phases of CML
chronic phase
accelerated phase
blast phase
CML chronic phase
can last around 5 years
often asymptomatic
CML accelerated phase
high proportion of the cells in the bone marrow and blood (10-20%)
patients become more symptomatic, develop anaemia, thrombocytopenia, and become more immunocompromised
CML blast phase
high proportion of blast cells (>30%)
This phase has severe symptoms and pancytopenia
It is often fatal
CF of CML
asymptomatic
splenomegaly
hyper metabolic symptoms
gout
treatment of CML
tyrosine kinase inhibitors e.g. imatinib
MOA of tyrosine kinase inhibitors e.g. imatinib
Prevents the action of theBCR-ABL fusion protein i.e.this is the abnormal protein produced by the Ph mutation
acute myeloid leukaemia
malignant disease of primitive myeloid cells (excess of myeloblasts)
acute myeloid leukaemia common age range
> 60 years
acute lymphoblastic leukaemia
Malignant disease of primitive lymphoid cells (lymphoblasts)
Most common childhood cancer
acute lymphoblastic leukaemia