Research Article

Clinical Utility of Serum Autoantibodies Detected by Protein Microarray in Melanoma

Table 1

Patient and tumor characteristics of the study cohort.

CharacteristicTotalNode negativeNode positiveP value1

Frequency794732

Age
 Mean (SD)51.9 (12.6)51.8 (13.2)52.0 (12.0)0.944

Gender
 Males: N (%)38 (48.1)22 (46.8)16 (50.0)0.781
 Females: N (%)41 (51.9)25 (53.2)16 (50.0)

Breslow depth
 Mean (SD)2.39 (1.65)1.94 (1.15)3.11 (2.04)0.007

Mitotic rate
 Mean (SD)5.51 (5.72)4.45 (4.93)7.04 (6.50)0.075

Ulceration
 Absent: N (%)24 (30.4)35 (74.5)16 (50.0)0.0592
 Present: N (%)51 (64.6)11 (23.4)13 (40.6)
 Unknown: N (%)4 (5.0)1 (2.1)3 (9.4)

ASAH1
 Mean (SD)803 (353)837 (432)753 (179)0.238
 ±1 SD: N (%)68 (86.1)36 (76.6)32 (100)0.008
 >1 SD: N (%)8 (10.1)8 (17.0)0
 <1 SD: N (%)3 (3.8)3 (6.4)0

CTSD
Mean (SD)8664 (4355)9607 (5014)7278 (2660)0.009
  ±1 SD: N (%)62 (78.5)33 (70.2)29 (90.6)0.039
  >1 SD: N (%)12 (15.2)11 (23.4)1 (3.1)
 <1 SD: N (%)5 (6.3)3 (6.4)2 (6.3)

GRP75
 Mean (SD)4087 (2107)4221 (2367)3891 (1671)0.471
  ±1 SD: N (%)62 (78.5)36 (76.6)26 (81.3)0.913
  >1 SD: N (%)13 (16.5)8 (17.0)5 (15.6)
  <1 SD: N (%)4 (5.1)3 (6.4)1 (3.1)

GRP94
 Mean (SD)6798 (3782)6032 (1840)7924 (5364)0.063
  ±1 SD: N (%)70 (88.6)47 (100)23 (71.9)<0.001
  >1 SD: N (%)9 (11.4)09 (28.1)
  <1 SD: N (%)000

LDH
 Mean (SD)7863 (4093)8587 (4933)6798 (2021)0.029
  ±1 SD: N (%)68 (86.1)37 (78.7)31 (96.9)0.056
  >1 SD: N (%)10 (12.7)9 (19.2)1 (3.1)
  <1 SD: N (%)1 (1.3)1 (2.1)0

Combination: ASAH1, CTSD, and LDH
 Overexpressed22 (27.9)20 (42.5)2 (6.2)<0.001
 Normal57 (72.1)27 (57.5)30 (93.8)

1Comparing between node-negative and node-positive groups.
2Unknown group omitted for statistical test.
Overexpressed defined as >1 SD for ASAH1, CTSD, or LDH.