Research Article

Establishment and Validation of the Detection of TERT Promoter Mutations by Human Gliomas U251 Cell Lines

Table 4

Correlations between clinicopathological characteristics and the status of TERTp mutations.

TotalIDH valueMGMT value
MutWt
(%) (%) (%) (%) (%)

Sex0.5050.707
 Male84 (57.1)41 (53.9)43 (60.6)63 (58.3)21 (53.8)
 Female63 (42.9)35 (46.1)28 (39.4)45 (41.7)18 (46.2)
Age (years)0.0050.257
 <4570 (47.6)42 (55.3)28 (39.4)50 (46.3)20 (51.3)
 45-6059 (40.1)31 (40.8)28 (39.4)47 (43.5)12 (30.8)
 ≥6018 (12.2)3 (3.9)15 (21.1)11 (10.2)7 (17.9)
Tumor location<0.0010.022
 Frontal91 (61.9)58 (76.3)33 (46.5)73 (67.6)18 (46.2)
 Others56 (38.1)18 (23.7)38 (53.5)35 (32.4)21 (53.8)
Histology<0.0010.009
 DA37 (25.2)20 (26.3)17 (23.9)22 (20.4)15 (38.5)
 AA15 (10.2)6 (7.9)9 (12.7)14 (13.0)1 (2.6)
 AO24 (16.3)16 (21.1)8 (11.3)20 (18.5)4 (10.3)
 OA6 (4.1)4 (5.3)2 (2.8)2 (1.9)4 (10.3)
 O28 (19.0)22 (28.9)6 (8.5)24 (22.2)4 (10.3)
 GBMs37 (25.2)7 (9.2)29 (40.8)26 (24.1)11 (28.2)
Pathologic stage<0.0010.286
 Grade II-III109 (74.1)67 (88.2)42 (59.2)83 (76.1)26 (66.7)
 Grade IV38 (25.9)9 (11.8)29 (40.8)25 (22.9)13 (33.3)
Ki-670.0111.000
 <15%89 (60.5)54 (71.1)35 (49.3)65 (60.2)24 (61.5)
 ≥15%58 (39.5)22 (28.9)36 (50.7)43 (39.8)15 (38.5)
MGMT promoter0.003
 Methylated108 (73.5)64 (84.2)44 (62.0)
 Unmethylated39 (26.5)12 (15.8)27 (38.0)
TERT promoter0.3120.088
 Mutation59 (40.1)34 (44.7)25 (35.2)48 (44.4)11 (28.2)
 Wild type88 (59.9)42 (55.3)46 (64.8)60 (55.6)28 (71.8)

TERTp: the promoter region of the telomerase reverse transcriptase gene; IDH: isocitrate dehydrogenase; MGMT: O6-methylguanine-DNA methyltransferase; Mut: mutation; Wt: wild-type; M: methylated; U: unmethylated; DA: diffuse astrocytoma; AA: anaplastic astrocytoma; AO: anaplastic oligodendroglioma; OA: oligoastrocytoma; O: oligodendroglioma; GBMs: glioblastomas. value was calculated by the Pearson chi-square test or the 2-tailed Fisher’s exact test. Statistically significant: .