IMMUNOLOGICAL ASPECTS OF HUMAN COLOSTRUM AND MILK .2. CHARACTERISTICS OF LYMPHOCYTE-REACTIVITY AND DISTRIBUTION OF E-ROSETTE FORMING CELLS AT DIFFERENT TIMES AFTER ONSET OF LACTATION
IMMUNOLOGICAL ASPECTS OF HUMAN COLOSTRUM AND MILK .2. CHARACTERISTICS OF LYMPHOCYTE-REACTIVITY AND DISTRIBUTION OF E-ROSETTE FORMING CELLS AT DIFFERENT TIMES AFTER ONSET OF LACTATION
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DOI:
10.1016/s0022-3476(78)80286-8
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发表时间:
1978-01-01
影响因子:
5.1
通讯作者:
OGRA, PL
中科院分区:
文献类型:
--
作者:
OGRA, SS;OGRA, PL
The distribution of T[thymus-derived]-lymphocytes and other cells and proliferative activity to a variety of bacterial and viral antigens was studied in the colostrum and milk and peripheral blood of postpartum subjects at various times after the onset of lactation. The techniques of E[erythrocyte]-rosette formation and in vitro lymphoproliferative responses were employed to study the responses in colostrum and milk and peripheral blood lymphocytes. The highest number of total cells (105-107/ml) and of E-rosetting lymphocytes (104-105/ml) were observed in the colostrum on the 1st postpartum day. Subsequently, the concentration of cellular components decreased sharply and by the 4th postpartum day the number of E-rosette forming cells in milk had dropped by about 10-fold; the number of E-rosette forming cells 180 days postpartum was about 103/ml. No change was observed in the cell counts in the peripheral blood. The proliferative responses to phytohemagglutinin, concanavalin A, streptokinase, Candida, rubella, cytomegalovirus and mumps virus antigens were frequently detected in the colostrum lymphocytes. The activity in colostrum lymphocytes appeared to be independent of the activity in the peripheral blood lymphocytes. Little or no responses were observed in the milk collected 15-180 days postpartum, in spite of an adequate number of E-rosette forming cells. Colostrum and milk had a profound inhibitory effect on the proliferative responses of peripheral blood and on colostrum and milk lymphocytes.