Table II.
Immunohistochemistry analysis for interferon-induced protein with tetratricopeptide repeats 1 and 2 (IFIT1 and IFIT2)
| Patients | IFIT1 keratinocytes/inflammatory cells | IFIT2 keratinocytes/inflammatory cells |
|---|---|---|
| 4 | +++/− | ++/+ |
| 5 | +++/+ | +++/+ |
| 6 | ++/+ | ++/+ |
| 8 | −/ − | −/ − |
| 9 | ++/− | ++/− |
| 11 | +/+ | +/+ |
| 12 | +++/− | +++/− |
| 13 | +/− | ++/− |
| 14 | +++/+ | +++/+ |
| 15 | +/− | ++/− |
| 19 | +/− | ++/− |
| 20 | −/ − | −/ − |
Keratinocyte immunostaining is graded as follows: − negative; + < 30% cells positive; ++ 30– 70% cells positive, +++ > 70% cells positive. Inflammatory cell immunostaining is graded as follows: − negative, + > 10% positive.