Table 2:
Univariate and multivariate analysis of association between ovarian cancer gene signatures and overall survival (OS) of patients in A) the TCGA dataset or B) the smaller MGH study.
| Published gene signature | A) HGSOC tumors (TCGA, n=518)b | B) MGH Data (n=38) | |||||
|---|---|---|---|---|---|---|---|
| Study | Signature or % stromal content | OS | b OS, adjust stage | b OS, adjust % stroma | b OS, adjust % stroma + stage | OS, gene expression in microdissected epithelium | OS, gene expression in microdissected stroma |
| AOCS C1 stroma vs. tumora | Stromal genes vs. tumor genes | 0.0870 | 0.137 | 0.2730 | 0.484 | 0.2440 | 0.1800 |
| MGH stroma vs. tumora | Tumor-associated stroma vs. tumor | 0.0336 | 0.0544 | 0.148 | 0.289 | 0.555 | 0.156 |
| MGH tissue- specific genesa | Tumor | 0.778 | 0.640 | 0.996 | 0.906 | 0.924 | 0.718 |
| Tumor-associated stroma | 0.0430 | 0.0732 | 0.177 | 0.337 | 0.540 | 0.164 | |
| Normal or tumor-associated stroma | 0.0395 | 0.0707 | 0.140 | 0.294 | 0.598 | 0.175 | |
| TCGA stromal content | Pathologist assessment of % stroma in TCGA samples | 0.0979 | 0.0499 | N/A | N/A | N/A | N/A |
| AOCS (Tothill et al.) | C1 | 0.0175 | 0.0658 | 0.0755 | 0.276 | 0.343 | 0.316 |
| PFS | 0.0045 | 0.0195 | 0.0346 | 0.148 | 0.242 | 0.377 | |
| OS | 0.0010 | 0.0068 | 0.0076 | 0.0541 | 0.356 | 0.105 | |
| Bentink et al. | Angiogenic vs. non-angiogenic | 0.0313 | 0.115 | 0.109 | 0.374 | 0.552 | 0.324 |
| Bignotti et al. | Metastasis vs. primary | 0.0165 | 0.0921 | 0.0613 | 0.311 | 0.383 | 0.229 |
| Spentzos et al. | Prognosis | 0.0118 | 0.0330 | 0.0507 | 0.163 | 0.608 | 0.145 |
| Bonome et al. | Prognosis | 0.0426 | 0.0571 | 0.128 | 0.208 | 0.366 | 0.0352 |
| Biade et al. | Malignant vs. benign | 0.310 | 0.266 | 0.587 | 0.584 | 0.642 | 0.101 |
| Konstantinopoulos et al. | BRCA-like | 0.0167 | 0.0281 | 0.0272 | 0.0386 | 0.696 | 0.387 |
Significance (p < 0.05) is highlighted in bold.
Multivariate survival analyses of TCGA data adjusted for percent stromal content and/or stage.