Table 1 Relationship between clinicopathological features of patients and MYC protein expression

From: Prognostic impact of MYC protein expression in central nervous system diffuse large B-cell lymphoma: comparison with MYC rearrangement and MYC mRNA expression

Characteristics

Total (n=74)

MYC protein expression

P-value

MYC mRNA expression

P-value

  

Negative (n=25)

Positive (n=49)

 

Negative (n=58)

Positive (n=16)

 

Sex, n (%)

   

0.027

  

0.713

 Male

40 (54)

18/25 (72)

22/49 (45)

 

32 (55)

8 (50)

 

 Female

34 (46)

7/25 (28)

27/49 (55)

 

26 (45)

8 (50)

 

 Age, years

   

0.164

  

0.807

Median (range)

58 (19-82)

58 (19–79)

60 (25–82)

    

 <60, n (%)

39 (53)

16/25 (64)

23/49 (47)

 

31/58 (53)

8/16 (50)

 

 ≥60, n (%)

35 (47)

9/25 (36)

26/49 (53)

 

27/58 (47)

8/16 (50)

 

Performance status, n (%)

   

0.463

  

0.750

 ECOG <2

17 (23)

7/25 (28)

10/49 (20)

 

14/58 (24)

3/16 (19)

 

 ECOG ≥2

57 (77)

18/25 (72)

39/49 (80)

 

44/58 (76)

13/16 (81)

 

Serum lactate dehydrogenase, n (%)

   

0.455

  

1

 Normal

48 (71)

19/25 (76)

29/43 (67)

 

38/54 (70)

10/14 (71)

 

 Elevated

20 (29)

6/25 (24)

14/43 (33)

 

16/54 (30)

4/14 (29)

 

IPI, n (%)

   

0.045

  

1

 <3 Points

57 (84)

24/25 (96)

33/43 (77)

 

45/54 (83)

12/14 (86)

 

 ≥3 Points

11 (16)

1/25 (4)

10/43 (23)

 

9/54 (17)

2/14 (14)

 

Hans algorithm, n (%)

   

0.003

  

0.499

 Germinal center phenotype

15 (20)

10/25 (40)

5/49 (10)

 

13/58 (22)

2/58 (13)

 

 Non-germinal center phenotype

59 (80)

15/25 (60)

44/49 (90)

 

45/58 (78)

14 (88)

 

CD10 protein expression, n (%)

   

0.400

  

1

 Negative

68 (92)

22/25 (88)

46/49 (94)

 

53/58 (91)

15/16 (94)

 

 Positive

6 (8)

3/25 (12)

3/49 (6)

 

5/58 (9)

1/16 (6)

 

BCL6 protein expression, n (%)

   

1

  

1

 Negative

10 (14)

3/25 (12)

7/49 (14)

 

8/58 (14)

2/16 (13)

 

 Positive

64 (86)

22/25 (88)

42/49 (86)

 

50/58 (86)

14/16 (88)

 

MUM1 protein expression, n (%)

   

0.005

  

1

 Negative

11 (15)

8/25 (32)

3/49 (6)

 

9/58 (16)

2/16 (13)

 

 Positive

63 (85)

17/25 (68)

46/49 (94)

 

49/58 (85)

14/16 (88)

 

MYC

 MYC protein expression

   

   

Mean % (s.d.)

48.8 (21.6)

NA

NA

 

43.8 (18.5)

67.2 (22.5)

0.042

<44, n (%)

25 (34)

NA

NA

 

23/58 (40)

2/16 (13)

 

≥44, n (%)

49 (66)

NA

NA

 

35/58 (60)

14/16 (88)

 

 MYC mRNA expression

   

0.042

  

Median (min, max)

34.2 (1.0, 207.5)

24.9 (1.0, 102.1)

45.1 (1.3, 207.5)

 

NA

NA

 

<63.5, n (%)

58 (78)

23/25 (92)

35/49 (71)

 

NA

NA

 

≥63.5, n (%)

16 (22)

2/25 (8)

14/49 (29)

 

NA

NA

 

 MYC translocation, n (%)

   

0.166

  

0.081

Negative

63 (93)

22/22 (100)

41/46 (89)

 

50/52 (96)

13/16 (81)

 

Positive

5 (7)

0/22 (0)

5/46 (11)

 

2/52 (4)

3/16 (19)

 

BCL2

 BCL2 protein expression

Median (min, max)

90 (5.0, 99.0)

80 (5.0, 95.0)

90 (5.0, 99.0)

0.214

80 (5.0, 95.0)

90 (5.0, 99.0)

1

 <70, n (%)

20 (27)

9/25 (36)

11/49 (22)

 

16/58 (28)

4/16 (25)

 

 ≥70, n (%)

54 (73)

16/25 (64)

38/49 (78)

 

42/58 (72)

12/16 (75)

 

 BCL2 translocation, n (%)

   

  

Negative

5 (100)

0 (0)

0/5 (0)

 

0/2 (0)

0/3 (0)

 

Positive

0 (0)

0 (0)

0/5 (0)

 

0/2 (0)

0/3 (0)

 
  1. ECOG, Eastern Cooperative Oncology Group; IPI, international prognostic index; MYC<44, cases with a percentage of MYC positive cells inferior to 44%; MYC≥44, cases with a percentage of MYC positive cells ≥44%; NA, not applicable.