A Subset of Patients With Recurrent Spontaneous Abortion Is Deficient in Transforming Growth Factor β‐2‐Producing “Suppressor Cells” in Uterine Tissue Near the Placental Attachment Site

Abstract

Suppressor cell deficiency is compatible with a role for rejection and/or trophoblast failure in some patients with recurrent miscarriage. Presence of suppressor cells in most patients with missed abortion (4/5) is compatible with an alternative cause of fetal death, similar to findings reported in genetic fetal death mice.