Haematology Flashcards
What is a lymphoblastic and a lymphocyte?
Lymphoblast- precursor lymphocyte
Lymphocyte- immune cells
What is haematopoiesis and where does it occur?
Formation of the cellular components of the blood
Occurs in the bone marrow
What is arrested differentiation?
CD19+CD10 + phenotype “common” ALL
Where does initiating translocation occur?
Within the B cell progenitor rather than the HSC
Describe cancer in proliferation;
Replicative immortality
Sustain proliferation signalling
Describe ALL in proliferation(
Accumulation of lymphoblastic within the bone marrow
What is ALL?
Acute lymphoblastic leukaemia
Describe the first hit in the ‘two hit’ model;
Common
Pre-leukaemic clone
Potent cell
Describe the second step in the ‘two hit’ model;
Translocation to ALL
infections
2-15 years
Gene deletion/mutation