Laboratory Medicine ›› 2026, Vol. 41 ›› Issue (4): 355-361.DOI: 10.3969/j.issn.1673-8640.2026.04.007
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XU Junyue, ZHAO Yahong, WANG Mengyang, ZHANG Shana, LI Yi, JIA Shujing, WANG Zhihua, GUO Weiwei, CAI Yue, CAO Si(
)
Received:2024-08-28
Revised:2025-06-06
Online:2026-04-30
Published:2026-05-07
CLC Number:
XU Junyue, ZHAO Yahong, WANG Mengyang, ZHANG Shana, LI Yi, JIA Shujing, WANG Zhihua, GUO Weiwei, CAI Yue, CAO Si. Role of fecal SDC2 methylation combined with m3 gene determination in the diagnosis of colorectal cancer[J]. Laboratory Medicine, 2026, 41(4): 355-361.
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| 基因名称 | 正向引物(5'~3') | 反向引物(5'~3') |
|---|---|---|
| SDC2 | GAGGAGGGGCGTAGTCGC | CCGCGCGACTAAAACTCCGA |
| β-actin | AAGGTGGTTGGTGTTGTTG | AATAACACCCCCACCCTGC |
| 基因名称 | 正向引物(5'~3') | 反向引物(5'~3') |
|---|---|---|
| SDC2 | GAGGAGGGGCGTAGTCGC | CCGCGCGACTAAAACTCCGA |
| β-actin | AAGGTGGTTGGTGTTGTTG | AATAACACCCCCACCCTGC |
| 组别 | 例数 | 性别 | 年龄/岁 | WBC计数/ (×109L-1) | RBC计数/ (×109L-1) | PLT计数/ (×109L-1) | |||
|---|---|---|---|---|---|---|---|---|---|
| 男/[例(%)] | 女/[例(%)] | ||||||||
| 对照组 | 40 | 25(62.50) | 15(37.50) | 54.25±7.29 | 5.78±1.53 | 4.65±0.50 | 140.50(132.00,152.50) | ||
| 腺瘤组 | 40 | 26(65.00) | 14(35.00) | 59.45±7.33 | 5.93±1.17 | 4.66±0.41 | 148.50(134.00,152.00) | ||
| CRC组 | 60 | 39(64.30) | 21(35.70) | 64.18±8.50 | 6.11±1.99 | 4.62±0.53 | 166.00(131.00,207.00) | ||
| 统计值 | 0.078 | 19.38 | 0.485 | 0.121 | 13.387 | ||||
| P值 | 0.962 | <0.001 | 0.616 | 0.886 | 0.001 | ||||
| 组别 | Alb/(g·L-1) | NEUT%/% | LYMPH%/% | TG/(mmol·L-1) | UA/(umol·L-1) | 血糖/(mmol·L-1) | |||
| 对照组 | 40.50(37.45,43.90) | 58.64±9.22 | 27.95(23.90,36.30) | 1.11(0.79,1.49) | 339.15±113.17 | 5.36(4.83,6.05) | |||
| 腺瘤组 | 42.15(38.45,44.20) | 60.30±9.04 | 29.25(25.85,32.50) | 1.24(0.94,1.73) | 335.45±94.44 | 5.52(4.71,6.21) | |||
| CRC组 | 37.55(34.11,40.23) | 59.49±7.68 | 28.55(24.75,32.40) | 1.34(0.93,1.60) | 350.42±93.11 | 5.48(5.07,5.87) | |||
| 统计值 | 16.651 | 0.377 | 0.186 | 3.388 | 0.311 | 0.532 | |||
| P值 | <0.001 | 0.687 | 0.911 | 0.184 | 0.733 | 0.766 | |||
| 组别 | 基础疾病 | 吸烟史/ [例(%)] | 饮酒史/ [例(%)] | TNM分期 | |||||
| 糖尿病/ [例(%)] | 高血压/ [例(%)] | 高脂血症/ [例(%)] | Ⅰ~Ⅱ期/ [例(%)] | Ⅲ~Ⅳ期/ [例(%)] | |||||
| 对照组 | 3(7.50) | 9(22.50) | 8(20.00) | 7(17.50) | 6(15.00) | ||||
| 腺瘤组 | 4(10.00) | 9(22.50) | 6(15.00) | 8(20.00) | 6(15.00) | ||||
| CRC组 | 6(10.00) | 13(21.70) | 13(21.70) | 13(21.70) | 15(25.00) | 34(56.67) | 26(43.33) | ||
| 统计值 | 0.212 | 0.014 | 0.704 | 0.26 | 2.203 | ||||
| P值 | 0.899 | 0.993 | 0.703 | 0.878 | 0.332 | ||||
| 组别 | 例数 | 性别 | 年龄/岁 | WBC计数/ (×109L-1) | RBC计数/ (×109L-1) | PLT计数/ (×109L-1) | |||
|---|---|---|---|---|---|---|---|---|---|
| 男/[例(%)] | 女/[例(%)] | ||||||||
| 对照组 | 40 | 25(62.50) | 15(37.50) | 54.25±7.29 | 5.78±1.53 | 4.65±0.50 | 140.50(132.00,152.50) | ||
| 腺瘤组 | 40 | 26(65.00) | 14(35.00) | 59.45±7.33 | 5.93±1.17 | 4.66±0.41 | 148.50(134.00,152.00) | ||
| CRC组 | 60 | 39(64.30) | 21(35.70) | 64.18±8.50 | 6.11±1.99 | 4.62±0.53 | 166.00(131.00,207.00) | ||
| 统计值 | 0.078 | 19.38 | 0.485 | 0.121 | 13.387 | ||||
| P值 | 0.962 | <0.001 | 0.616 | 0.886 | 0.001 | ||||
| 组别 | Alb/(g·L-1) | NEUT%/% | LYMPH%/% | TG/(mmol·L-1) | UA/(umol·L-1) | 血糖/(mmol·L-1) | |||
| 对照组 | 40.50(37.45,43.90) | 58.64±9.22 | 27.95(23.90,36.30) | 1.11(0.79,1.49) | 339.15±113.17 | 5.36(4.83,6.05) | |||
| 腺瘤组 | 42.15(38.45,44.20) | 60.30±9.04 | 29.25(25.85,32.50) | 1.24(0.94,1.73) | 335.45±94.44 | 5.52(4.71,6.21) | |||
| CRC组 | 37.55(34.11,40.23) | 59.49±7.68 | 28.55(24.75,32.40) | 1.34(0.93,1.60) | 350.42±93.11 | 5.48(5.07,5.87) | |||
| 统计值 | 16.651 | 0.377 | 0.186 | 3.388 | 0.311 | 0.532 | |||
| P值 | <0.001 | 0.687 | 0.911 | 0.184 | 0.733 | 0.766 | |||
| 组别 | 基础疾病 | 吸烟史/ [例(%)] | 饮酒史/ [例(%)] | TNM分期 | |||||
| 糖尿病/ [例(%)] | 高血压/ [例(%)] | 高脂血症/ [例(%)] | Ⅰ~Ⅱ期/ [例(%)] | Ⅲ~Ⅳ期/ [例(%)] | |||||
| 对照组 | 3(7.50) | 9(22.50) | 8(20.00) | 7(17.50) | 6(15.00) | ||||
| 腺瘤组 | 4(10.00) | 9(22.50) | 6(15.00) | 8(20.00) | 6(15.00) | ||||
| CRC组 | 6(10.00) | 13(21.70) | 13(21.70) | 13(21.70) | 15(25.00) | 34(56.67) | 26(43.33) | ||
| 统计值 | 0.212 | 0.014 | 0.704 | 0.26 | 2.203 | ||||
| P值 | 0.899 | 0.993 | 0.703 | 0.878 | 0.332 | ||||
| 组别 | 例数 | SDC2甲基化阳性/ [例(%)] | m3基因 | CEA/(ng·mL-1) | CA19-9/(U·mL-1) | CA125/(U·mL-1) |
|---|---|---|---|---|---|---|
| 对照组 | 40 | 3(7.50) | 9.85(8.32,11.05) | 3.01(2.00,3.87) | 6.27(4.73,8.38) | 7.89(3.73,15.53) |
| 腺瘤组 | 40 | 22(55.00)* | 12.87(10.81,17.43)* | 3.39(2.13,5.56)* | 10.68(8.72,12.75)* | 10.45(7.02,14.93)* |
| CRC组 | 60 | 51(85.00)*# | 19.20(13.48,24.60)*# | 4.15(2.67,5.82)* | 11.31(7.01,16.06)* | 14.96(10.03,22.06)* |
| 统计值 | 58.098 | 47.412 | 12.936 | 14.455 | 22.102 | |
| P值 | <0.001 | <0.001 | 0.002 | 0.001 | <0.001 |
| 组别 | 例数 | SDC2甲基化阳性/ [例(%)] | m3基因 | CEA/(ng·mL-1) | CA19-9/(U·mL-1) | CA125/(U·mL-1) |
|---|---|---|---|---|---|---|
| 对照组 | 40 | 3(7.50) | 9.85(8.32,11.05) | 3.01(2.00,3.87) | 6.27(4.73,8.38) | 7.89(3.73,15.53) |
| 腺瘤组 | 40 | 22(55.00)* | 12.87(10.81,17.43)* | 3.39(2.13,5.56)* | 10.68(8.72,12.75)* | 10.45(7.02,14.93)* |
| CRC组 | 60 | 51(85.00)*# | 19.20(13.48,24.60)*# | 4.15(2.67,5.82)* | 11.31(7.01,16.06)* | 14.96(10.03,22.06)* |
| 统计值 | 58.098 | 47.412 | 12.936 | 14.455 | 22.102 | |
| P值 | <0.001 | <0.001 | 0.002 | 0.001 | <0.001 |
| 项目 | β值 | 标准误 | Wald值 | P值 | OR值(95%CI) |
|---|---|---|---|---|---|
| CEA | 0.093 | 0.371 | 0.063 | 0.802 | 1.098(0.530~2.272) |
| CA125 | 0.005 | 0.064 | 0.006 | 0.937 | 1.005(0.886~1.140) |
| CA19-9 | 0.073 | 0.054 | 1.843 | 0.175 | 1.076(0.968~1.197) |
| 年龄 | 0.218 | 0.087 | 6.242 | 0.012 | 1.244(1.048~1.477) |
| m3基因相对丰度 | 0.293 | 0.115 | 6.476 | 0.011 | 1.340(1.070~1.680) |
| SDC2甲基化阳性 | 3.864 | 1.093 | 12.499 | <0.001 | 47.647(5.595~405.803) |
| PLT计数 | 0.031 | 0.019 | 2.731 | 0.098 | 1.032(0.994~1.071) |
| 白蛋白 | -0.121 | 0.063 | 3.634 | 0.057 | 0.886(0.783~1.003) |
| 项目 | β值 | 标准误 | Wald值 | P值 | OR值(95%CI) |
|---|---|---|---|---|---|
| CEA | 0.093 | 0.371 | 0.063 | 0.802 | 1.098(0.530~2.272) |
| CA125 | 0.005 | 0.064 | 0.006 | 0.937 | 1.005(0.886~1.140) |
| CA19-9 | 0.073 | 0.054 | 1.843 | 0.175 | 1.076(0.968~1.197) |
| 年龄 | 0.218 | 0.087 | 6.242 | 0.012 | 1.244(1.048~1.477) |
| m3基因相对丰度 | 0.293 | 0.115 | 6.476 | 0.011 | 1.340(1.070~1.680) |
| SDC2甲基化阳性 | 3.864 | 1.093 | 12.499 | <0.001 | 47.647(5.595~405.803) |
| PLT计数 | 0.031 | 0.019 | 2.731 | 0.098 | 1.032(0.994~1.071) |
| 白蛋白 | -0.121 | 0.063 | 3.634 | 0.057 | 0.886(0.783~1.003) |
| 项目 | AUC(95%CI) | 最佳临界值 | 敏感性/% | 特异性/% | 约登指数 |
|---|---|---|---|---|---|
| SDC2甲基化 | 0.888(0.809~0.942) | 85.00 | 92.50 | 0.775 | |
| m3基因 | 0.867(0.784~0.926) | 12.41 | 81.67 | 87.50 | 0.692 |
| CEA | 0.719(0.620~0.804) | 3.39 ng·mL-1 | 71.67 | 70.00 | 0.417 |
| CA125 | 0.713(0.614~0.799) | 11.36 U·mL-1 | 73.33 | 67.50 | 0.408 |
| CA19-9 | 0.748(0.651~0.829) | 9.01 U·mL-1 | 65.00 | 80.00 | 0.450 |
| SDC2甲基化+m3基因 | 0.958(0.898~0.988) | 0.363 | 96.67 | 90.00 | 0.867 |
| CEA+CA125+CA19-9 | 0.778(0.683~0.855) | 0.731 | 55.00 | 95.00 | 0.500 |
| 项目 | AUC(95%CI) | 最佳临界值 | 敏感性/% | 特异性/% | 约登指数 |
|---|---|---|---|---|---|
| SDC2甲基化 | 0.888(0.809~0.942) | 85.00 | 92.50 | 0.775 | |
| m3基因 | 0.867(0.784~0.926) | 12.41 | 81.67 | 87.50 | 0.692 |
| CEA | 0.719(0.620~0.804) | 3.39 ng·mL-1 | 71.67 | 70.00 | 0.417 |
| CA125 | 0.713(0.614~0.799) | 11.36 U·mL-1 | 73.33 | 67.50 | 0.408 |
| CA19-9 | 0.748(0.651~0.829) | 9.01 U·mL-1 | 65.00 | 80.00 | 0.450 |
| SDC2甲基化+m3基因 | 0.958(0.898~0.988) | 0.363 | 96.67 | 90.00 | 0.867 |
| CEA+CA125+CA19-9 | 0.778(0.683~0.855) | 0.731 | 55.00 | 95.00 | 0.500 |
| 项目 | AUC(95%CI) | 最佳临界值 | 敏感性/% | 特异性/% | 约登指数 |
|---|---|---|---|---|---|
| SDC2甲基化+m3基因 | 0.835(0.745~0.925) | 0.441 | 80.00 | 75.00 | 0.550 |
| CEA+CA125+CA19-9 | 0.672(0.549~0.795) | 0.401 | 82.90 | 55.00 | 0.379 |
| 项目 | AUC(95%CI) | 最佳临界值 | 敏感性/% | 特异性/% | 约登指数 |
|---|---|---|---|---|---|
| SDC2甲基化+m3基因 | 0.835(0.745~0.925) | 0.441 | 80.00 | 75.00 | 0.550 |
| CEA+CA125+CA19-9 | 0.672(0.549~0.795) | 0.401 | 82.90 | 55.00 | 0.379 |
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