Table 3 Overall and post-relapse EFS in ALL patients by DPβ1 pocket 1–4 molecular signature

From: HLA-DPβ1 Asp84-Lys69 antigen-binding signature predicts event-free survival in childhood B-cell precursor acute lymphoblastic leukaemia: results from the MRC UKALL XI childhood ALL trial

Amino-acid signature

DP supertype

Overall EFS

Post-relapse EFS

  

No. of events/no. patients

% (se) at 5 years

% (se) at 10 years

P-value (log-rank test)

No. of events/no. of patients

% (se) at 5 years

% (se) at 10 years

P-value (log-rank test)

Asp84-Lys69

DP 1, 3

111/248

58.8 (3.1)

55.2 (3.2)

0.007

62/102

39.2 (4.8)

39.2 (4.8)

0.2

Non-Asp84-Lys69

DP 2, 4, 6, 8, 11, 15

198/550

67.3 (2.0)

64.5 (2.0)

 

104/192

49.6 (3.6)

44.0 (3.8)

 

Gly84-Glu69

DP 2

57/161

68.9 (3.6)

65.1 (3.8)

0.3

28/56

53.3 (6.7)

48.4 (6.9)

0.2

Non-Gly84-Glu69

DP 1, 3, 4, 6, 8, 11, 15

252/637

63.6 (1.9)

60.7 (1.9)

 

138/238

44.2 (3.2)

40.7 (3.3)

 

Gly84-Lys69

DP 4

252/655

65.0 (1.9)

61.9 (1.9)

0.6

133/242

48.0 (3.2)

43.6 (3.3)

0.2

Non-Gly84-Lys69

DP 1, 2, 3, 6, 8, 11, 15

57/143

62.9 (4.0)

60.0 (4.1)

 

33/52

36.3 (6.7)

36.3 (6.7)

 

Asp84-Glu69

DP 6, 8

45/117

62.4 (4.5)

61.4 (4.5)

1.0

27/42

40.3 (7.6)

35.3 (7.4)

0.3

Non-Asp84-Glu69

DP 1, 2, 3, 4, 11, 15

264/681

65.0 (1.8)

61.6 (1.9)

 

139/252

46.9 (3.2)

43.5 (3.3)

 

Asp84-Arg69

DP 11

11/34

67.6 (8.0)

67.6 (8.0)

0.6

5/10

50.0 (15.8)

50.0 (15.8)

0.7

Non-Asp84-Arg69

DP 1, 2, 3, 4, 6, 8, 15

298/764

64.5 (1.7)

61.3 (1.8)

 

161/284

45.8 (3.0)

42.0 (3.1)

 

Val84-Arg69

DP 15

5/12

58.3 (14.2)

58.3 (14.2)

0.9

3/5

40.0 (21.9)

40.0 (21.9)

0.9

Non-Val84-Arg69

DP 1, 2, 3, 4, 6, 8, 11

304/786

64.7 (1.7)

61.6 (1.8)

 

163/289

46.1 (2.9)

42.3 (3.0)

 
  1. Abbreviations: ALL, acute lymphoblastic leukemia; Asp, aspartic acid; Arg, arginine; EFS, event-free survival; Gly, glycine; Glu, glutamic acid, Leu, leucine; Lys, lysine; Val, valine.