Background
Methods
Patients
Cytogenetic and FISH analyses
IGHV analysis
Ion Torrent Personal Genome Machine (PGM) analysis
Statistical analysis
Results
Patients and mutation analyses of the 20 genes by NGS
Variable | |
---|---|
Age, median yrs (range) | 67.6 (38.3–89.9) |
Sex m/f | 121/79 |
Binet stage a/b/c | 161/25/14 |
CD38 neg/pos | 121/79 |
ZAP-70 neg/pos | 143/37 |
IGVH mut/unmut | 105/91 |
13q14 deletion yes/no | 104/96 |
Trisomy 12 yes/no | 32/168 |
11q22 deletion yes/no | 20/180 |
17p13 deletion yes/no | 9/191 |
FISH fav/int/unfav | 142/30/28 |
Complex karyotype no/yes | 167/28 |
Mutated patients by NGS no/yes | 116/84 |
No. of mutations by NGS 0/1/2/3/4 | 116/48/24/8/4 |
TP53 mut/WT | 16/184 |
TP53 disruption yes/no | 19/181 |
Correlations between mutational status by NGS, molecular cytogenetic findings, and clinico-biological parameters
Mutated (n = 84) | Not mutated (n = 116) |
p
| |
---|---|---|---|
Sex m/f | 49/35 | 72/44 | 0.594 |
Age <70/≥70 years | 46/38 | 69/47 | 0.505 |
Binet stage a/b/c | 66/12/6 | 95/13/8 | 0.802 |
CD38 neg/pos | 42/42 | 79/37 | 0.010 |
IGHV mut/unmut | 36/48 | 69/43 | 0.009 |
FISH fav/int unfav | 48/36 | 94/22 | <0.001 |
Complex karyotype no/yes | 63/19 | 104/9 | 0.003 |
FISH results | Complex karyotype | |||||
---|---|---|---|---|---|---|
Fav | Int-unfav | No | Yes |
p
| ||
No. of mutations by NGS no/1/≥2 | 94/28/20 | 22/19/17 | 0.001 | 104/36/27 | 9/11/8 | 0.011 |
TP53 WT/mut | 135/7 | 49/9 | 0.012 | 158/9 | 22/6 | 0.003 |
NOTCH1 WT/mut | 133/9 | 51/7 | 0.175 | 155/12 | 25/3 | 0.517 |
SF3B1 WT/mut | 132/10 | 53/5 | 0.701 | 156/11 | 25/3 | 0.434 |
ATM WT/mut | 137/5 | 53/5 | 0.133 | 161/6 | 24/4 | 0.018 |
BIRC3 WT/mut | 140/2 | 52/6 | 0.003 | 161/6 | 26/2 | 0.381 |
MYD88 WT/mut | 136/6 | 57/1 | 0.382 | 164/3 | 24/4 | 0.001 |
PTEN WT/mut | 138/4 | 55/3 | 0.411 | 161/6 | 27/1 | 0.996 |
FBXW7 WT/mut | 141/1 | 53/5 | 0.003 | 161/6 | 28/0 | 0.308 |
POT1 WT/mut | 138/4 | 57/1 | 0.653 | 162/5 | 28/0 | 0.354 |
BRAF WT/mut | 139/3 | 56/2 | 0.583 | 163/4 | 28/0 | 0.408 |
ZMYM3 WT/mut | 138/4 | 57/1 | 0.653 | 163/4 | 27/1 | 0.716 |
Others WT/mut | 129/13 | 49/6 | 0.192 | 149/18 | 24/4 | 0.587 |
TTFT | OS | ||||
---|---|---|---|---|---|
Variable |
N pts | HR (CI 95 %) |
p
| HR (CI 95 %) |
p
|
Binet stage B–C vs A | 39 vs 161 | 9.884 (5.939–16.450) | <0.0001 | 3.174 (1.677–6.007) | 0.0002 |
CD38 pos vs neg | 79 vs 121 | 4.097 (2.564–6.546) | <0.0001 | 3.123 (1.686–5.783) | 0.0001 |
IGVH mut vs unmut | 105 vs 91 | 5.584 (3.326–9.374) | <0.0001 | 3.667 (1.886–7.127) | <0.0001 |
11q22 deletion yes vs no | 20 vs 180 | 2.879 (1.528–5.426) | 0.0006 | 1.736 (0.739–4.078) | 0.2000 |
TP53 disruption yes/no | 19 vs 181 | 3.284 (1.867–5.781) | <0.0001 | 4.246 (2.076–8.687) | <0.0001 |
FISH int-unfav vs fav | 58 vs 142 | 2.605 (1.670–4.063) | <0.0001 | 2.432 (1.438–4.454) | 0.0029 |
Complex karyotype yes vs no | 28 vs 167 | 2.979 (1.756–5.056) | <0.0001 | 3.854 (1.961–7.578) | <0.0001 |
Mutations by NGS no/yes | 116 vs 84 | 2.835 (1.799–4.469) | <0.0001 | 2.171 (1.176–4.008) | 0.0130 |
Number of mutations by NGS | |||||
0 | 116 | 1 | <0.001 | 1 | 0.037 |
1 | 47 | 2.373 (1.369–4.112) | 0.002a
| 1.936 (0.930–4.032) | 0.078a
|
≥2 | 37 | 3.418 (2.009–5.759) | <0.001a
| 2.466 (1.187–5.126) | 0.016a
|
TP53 mut vs wt | 16 vs 184 | 2.804 (1.514–5.194) | 0.0010 | 2.793 (1.284–6.098) | 0.0069 |
NOTCH1 mut vs wt | 16 vs 184 | 2.353 (1.164–4.762) | 0.0141 | 2.646 (1.114–6.259) | 0.0219 |
SF3B1 mut vs wt | 15 vs 185 | 1.779 (0.886–3.571) | 0.1006 | 1.170 (0.419–3.268) | 0.7648 |
ATM mut vs wt | 10 vs 190 | 3.623 (1.715–7.633) | 0.0003 | 1.946 (0.686–5.525) | 0.2023 |
BIRC3 mut vs wt | 8 vs 192 | 0.817 (0.254–2.597) | 0.7246 | 1.099 (0.252–4.808) | 0.8998 |
MYD88 mut vs WT | 7 vs 193 | 1.758 (0.642–4.812) | 0.2724 | 1.505 (0.363–6.240) | 0.5733 |
PTEN mut vs WT | 7 vs 193 | 1.573 (0.574–4.310) | 0.3780 | 1.503 (0.363–6.224) | 0.5742 |
FBXW7 mut vs WT | 6 vs 194 | 1.820 (0.664–4.988) | 0.2441 | 1.445 (0.349–5.986) | 0.6134 |
POT1 mut vs WT | 5 vs 195 | 1.059 (0.259–0.321) | 0.9375 | 0.978 (0.352–4.768) | 0.9973 |
BRAF mut vs WT | 5 vs 195 | 7.730 (3.014–19.827) | <0.0001 | 2.126 (0.286–15.823) | 0.4610 |
ZMYM3 mut vs WT | 5 vs 195 | 0.484 (0.067–3.480) | 0.4710 | 2.336 (0.563–9.693) | 0.2434 |
OTHERS mut vs wt
| 19 vs 181 | 1.036 (0.517–2.075) | 0.9205 | 0.898 (0.320–2.518) | 0.8381 |
TTFT | OS | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
After bootstrapping | After bootstrapping | |||||||||
Variable | HR | CI |
p
| CI |
p
| HR | CI |
p
| CI |
p
|
Binet stage b–c vs a | 11.206 | 6.384–19.671 | <0.001 | 5.570–22.545 | <0.001 | 3.080 | 1.501–6.319 | 0.002 | 1.302–7.286 | 0.010 |
CD38 pos vs neg | 1.141 | 0.670–1.942 | 0.627 | 0.663–1.938 | 0.634 | 1.067 | 0.506–2.249 | 0.864 | 0.448–2.356 | 0.883 |
11q deletion yes vs no | 1.306 | 0.619–2.755 | 0.484 | 0.532–3.205 | 0.560 | Na | Na | Na | Na | Na |
TP53 disruption yes vs no | 2.255 | 1.168–4.352 | 0.015 | 1.039–4.891 | 0.040 | 4.055 | 1.844–7.917 | <0.001 | 1.897–8.670 | <0.001 |
IGHV unmut vs mut | 5.078 | 2.599–9.554 | <0.001 | 2.491–10.354 | <0.001 | 3.198 | 1.524–6.13 | 0.002 | 1.200–8.522 | 0.020 |
No. of mutations by NGS | ||||||||||
0 | 1 | 1 | 1 | 1 | ||||||
1 | 1.452 | 0.812–2.594 | 0.208 | 0.574–3.673 | 0.431 | 0.930 | 0.417–2.074 | 0.860 | 0.348–2.484 | 0.885 |
≥2 | 2.791 | 1.468–5.306 | 0.002 | 1.375–5.665 | 0.004 | 1.115 | 0.492–2.523 | 0.795 | 0.480–2.589 | 0.801 |
Complex karyotype yes vs no | 1.649 | 0.896–3.034 | 0.108 | 0.824–3.301 | 0.158 | 3.173 | 1.521–6.619 | 0.002 | 1.369–7.355 | 0.007 |