Table I.
Characteristics of the included studies.
| Author, year | Country | GEO accession | Platform | OS cases | Controls | Samples type | (Refs.) |
|---|---|---|---|---|---|---|---|
| Vella et al, 2016 | The Netherlands | GSE87437 | GPL570 | 21 | NA | High-grade osteosarcoma | (23) |
| Kobayashi et al, 2009 | Japan | GSE14827 | GPL570 | 27 | NA | Fresh frozen tumor specimens | (20) |
| Hamidouche et al, 2009 | Germany | GSE18043 | GPL570 | NA | 3 | BM-MSCs | (19) |
| André et al, 2013 | Belgium | GSE36474 | GPL570 | NA | 3 | BM-MSCs | (22) |
| Guilloton et al, 2012 | France | GSE35331 | GPL570 | NA | 6 | BM-MSCs | (21) |
OS, osteosarcoma; NA, not available; BM-MSCs, bone marrow mesenchymal stromal cells.