Genetics Flashcards
AML translocations
t(8;21) RUNX1-RUNX1T1 inv(16) or t(16;16) CBFB-MYH11 t(15;17) PML-RARA t(9;11) MLLT3-KMT2A t(6:9) DEK-NUP214 inv(3) or t(3;3) GATA2 t(1;22) RBM15-MKL1 t(9;22) NPM1 CEBPA
T21 AML mutation
GATA1
MDS mutations
Monosomy 7
Monosomy 5
-5q deletion
-7q deletion
AML favorable mutations
CEBP alpha NPM1 GATA1 t(8;21) inv(16) or t(16;16) t(15;17) t(1;11)
AML unfavorable genetics
FLT3-ITD
c-KIT
MDS
t(6;11), t(10;11)
ALL translocations
t(12;21) ETV6-RUNX1 t(1;19) TCF3-PBX1 t(17;19) TCF3-HLF (DIC) 11q23 MLL - t(4;11) most common t(9;22) BCR-ABL t(5;14) IL3-IGH (hypereosinophilia) hylerdiploidy/hypodiploidy Trisomy 4, 10, 17
CRLF2 gene overexpression (Ph like)
t(8;14), t(2;8), t(8;22) - Burkitt Leukemia
ALL favorable genetics
Hyperdiploid (>50)
Trisomy 4, 10, 17
t(12;21) ETv6-RUNX1
ALL unfavorable genetics
hypodiploid (< 44) MLL (KMT2A) t(9;22) iAMP21 t(17;19)
T21 ALL
absence of favorable genetics
1/3 have JAK2 and unique fusion between P2RY8 and CRLF2 leading to CRLF2 overexpression
Burkitt lymphoma translocations
t(8;14)
t(2;8)
t(8;22)
C-MYC
IGH
IGK
IGL
Primary mediastinal B cell genetics
9p and 2p gains
JAK2
C-rel
SOCS1
Lymphoblastic lymphoma genetics
Deletion TAL1
t(1;14)
t(11;14)
LOH at 6q
TAL1 TCRAO RHOMB1 HOX11 NOTCH1
ALCL translocations
t(2;5)
ALK
NPM
Diffuse Large B Cell lymphoma genetics
2/3 express BCL-6
1/3 express cMYC
Activated B cell like t(14;18)
IRF4 translocations (favorable)
Hodgkin lymphoma genetics
NFkB
9p24.1 alterations lead to increased PDL1
Familial neuroblastoma genetics
ALK
PHOX2B (Hirschprung’s, central hypoventilation)
Deletion 1p36 or 11q14-23
Sporadic NBL gremline mutations
NF-1
WT2
TP53
PTPN11
Neuroblastoma genetics changes (non-hereditary)
Myc-N amplification 17q gain 1p36 (MYCNA) 11q23 14q32 Whole chromosome gains ALK ATRX ARID1a/1b Ras pathway