TABLE 3.
Immunohistochemistry for Mismatch-Repair Protein Expression in Unselected Ovarian Cancers
| Reference | Location | Study Design | Sample Size | No. With MMR Loss (%) | Proteins Investigated | Method | Comments |
|---|---|---|---|---|---|---|---|
| Geisler 200311 | Holden Comprehensive Cancer Center (Iowa) | Hospital-based | 107 | 10 (9.3) | MLH1, MSH2, MSH3, MSH6, PMS1, PMS2 | RT-PCR | No tumors without MSI-H had loss of MMR protein expression |
| Malander 200647 | Lund University Hospital (Sweden) | Hospital-based | 128 | 3 (2.3) | MLH1, MSH2, MSH6, PMS2 | IHC on TMAs | All tumors with loss of MMR protein expression had MSI-H |
| Rosen 200675 | M. D. Anderson Cancer Center (Tex) | Hospital-based | 322 | 7 (2.2) | MLH1, MSH2 | IHC on TMAs | - |
| Domanska 200773 | Lund University Hospital/Swedish Cancer Registry (Sweden) | Population-based, age <40 y | 98 | 6 (6.1) | MLH1, MSH2, MSH6, PMS2 | IHC on full section | Five of 6 tumors with loss of MMR protein expression had MSI-H |
MMR indicates mismatch-repair; MLH, mutL homolog; MSH, mutS homolog; PMS, postmeiotic segregation increased; RT-PCR, reverse transcriptase-polymerase chain reaction; MSI-H, high-level microsatellite instability; IHC, immunohistochemistry; TMAs, tissue microarrays.