Clarke F M, Morton H, Clunie G J
Clin Exp Immunol. 1978 May;32(2):318-23.
Studies using the rosette inhibition test have demonstrated a depression of lymphocyte activity in pregnant mice which occurs as early as 6 hr after fertilization and persists until just before delivery. This depression of lymphocyte activity is induced by two serum factors, the relative contributions of which vary with the time of gestation. The first, a high molecular weight early pregnancy factor, appears within hours of fertilization and then slowly declines in activity as gestation proceeds. The second, a lower molecular weight substance which cross-reacts with antiserum to human chorionic gonadotrophin, appears after the formation of the trophoblast at 4--5 days and persists until parturition.
使用玫瑰花结抑制试验的研究表明,怀孕小鼠的淋巴细胞活性受到抑制,这种抑制早在受精后6小时就会出现,并一直持续到分娩前。淋巴细胞活性的这种抑制是由两种血清因子诱导的,它们的相对作用随妊娠期的时间而变化。第一种是高分子量的早期妊娠因子,在受精后数小时内出现,然后随着妊娠的进展其活性逐渐缓慢下降。第二种是分子量较低的物质,它与抗人绒毛膜促性腺激素抗血清发生交叉反应,在4 - 5天滋养层形成后出现,并一直持续到分娩。