Treatment of the D 492 cells with a specific PTP 1B inhibitor induced apoptosis, but did not induce cell death in MCF-7, a breast cancer cell line which also has high PTP 1B expression.
PTP 1B hindri framkallaði stýrðan frumudauða í D 492 frumum, en hafði engin áhrif í MCF-7 brjóstakrabbameinsfrumum sem einnig tjá PTP 1B í miklu magni.