Background
Methods
Patient and control samples
Immuno-phenotype | Cytogenetic abnormality | Fusion gene |
N
| Median WBC at diagnosis, × 10^9/L (range) | Median age at diagnosis, years (range) |
---|---|---|---|---|---|
T-ALL | Various | 18 | 173.5 (1–588) | 11.9 (1.9–16.8) | |
BCP-ALL | HeH | – | 42 | 9.6 (0.8–124) | 3.6 (1.0–17.74 |
t(12;21) |
ETV6-RUNX1
| 18 | 6.5 (1.1–95) | 4.9 (2.2–12.7) | |
11q23/MLL
|
MLL-r | 7 | 193 (1.8–744) | 0.6 (0.5–1.7) | |
t(9;22) |
BCR-ABL1
| 6 | 88.3 (14.1–180) | 12.1 (9.3–13.5) | |
dic(9;20) | – | 1 | 41.8 (41.8–41.8) | 4.4 (4.4–4.4) | |
Various (BCP-ALL “other”)a
| – | 42 | 7.9 (0–213) | 8.8 (1.4–17.7) | |
Total
|
134
|
Library preparation and transcriptome sequencing
Fusion gene detection
Gene expression profiling
DNA methylation analysis
Detection of somatic variants
Rapid amplification of cDNA ends
Data availability
Results
Transcriptome sequencing and detection of fusion genes
Characteristics of the fusion genes in pediatric ALL
Genomic breakpoints
Recurrent fusion genes
Fusion gene nodes
DNA methylation and transcriptional signatures
Differential DNA methylation and gene expression
Genetic alterations
Fusion gene | Sample | Mutated ALL driver genesa
| Copy number alterations |
---|---|---|---|
DUX4-IGH fusion gene | |||
DUX4-IGH
| ALL_176 | na |
ERG deletion |
DUX4-IGH
| ALL_218 | na | Inconclusive |
DUX4-IGH
| ALL_312 |
NRAS (p.G12D) |
ERG deletion |
DUX4-IGH
| ALL_371 |
NRAS (p.G12D) |
ERG deletion |
DUX4-IGH
| ALL_390 | na |
ERG deletion |
DUX4-IGH
| ALL_392 | na |
ERG deletion |
DUX4-IGH
| ALL_501 |
NRAS (p.G12S), KMT2D (p.H3883fs) |
ERG deletion |
DUX4-IGH
| ALL_546 |
NRAS (p.G12S) |
ERG deletion |
DUX4-chr8q24.21-IGH
| ALL_205 |
NRAS (p.G12D) | Inconclusive |
ZNF384-rearranged fusion genes | |||
TCF3-ZNF384
| ALL_604 |
PTPN11 (p.E76Q) | chr7q deletion |
TCF3-ZNF384
| ALL_622 |
PTPN11 (p.T73I) | chr7q deletion |
TAF15-ZNF384, ZNF384-TAF15
| ALL_8 |
NRAS (p.Q61H) | – |
EP300-ZNF384, ZNF384-EP300
| ALL_52 | na | – |
EP300-ZNF384, ZNF384-EP300
| ALL_613 | na | – |
EP300-ZNF384
| ALL_693 | na | – |
ATP5C1-ZNF384
| ALL_257 |
CREBBP (p.R1408C) | – |