Research Article

Aberrant Hypermethylation-Mediated Suppression of PYCARD Is Extremely Frequent in Prostate Cancer with Gleason Score ≥ 7

Table 1

Relationships between PYCARD methylation or immunostaining and clinicopathological parameters.

CharacteristicsTotal ()Promoter methylation valueImmunostaining (T) valueImmunostaining (N) value
YesNoYesNoYesNo

Total4554464010
Gleason score (Grade Group)0.0063 (0.002)0.7726 (0.9134)0.1759 (0.1463)
 6 (group 1)4130422
 7 (group 2)20200218173
 7 (group 3)15132114105
 8 (group 4)5500550
 9 (group 5)6601560
Stage110.2818
 pT2≥31283328238
 pT3≤19172118172
Surgical margin110.4627
 Yes18171117135
 No32284329275
Lymphovascular invasion110.3193
 Yes7700770
 No433854393310
Biochemical recurrencea0.315410.2326
 Yes1212011184
 No37325334316
Age (years), median, range62 (51-78)62 (51-78)64 (54-74)61.5 (57-69)62 (51-78)61.5 (51-78)63.5 (54-74)
PSA (ng/ml), median, range7.6 (3.8-50)8.1 (3.8-50.0)7.1 (4.2-9.4)0.34797.3 (5.7-10.8)7.6 (3.8-50.0)0.12768.0 (3.8-19.6)6.8 (4.2-50)0.2412

Statistical analysis was performed by using JMP. Fisher’s exact test was used for associations between methylation status or immunostaining of PYCARD and clinicopathological parameters. A two-tailed Student -test was used for associations between methylation status or immunostaining of PYCARD and PSA. aCase no. 37 was excluded from this analysis because postoperative PSA levels did not drop to undetectable levels (0.2 ng/ml).