IMMUNOSUPPRESSION BY ANTI‐CD4 TREATMENT IN VIVO CELLULAR AND HUMORAL RESPONSES TO ALLOANTIGENS
作者:
CORNELIA WEYAND,
JÖRG GORONZY,
KARI SWARZTRAUBER,
C. Fathman,
期刊:
Transplantation
(OVID Available online 1989)
卷期:
Volume 47,
issue 6
页码: 1039-1042
ISSN:0041-1337
年代: 1989
出版商: OVID
数据来源: OVID
摘要:
Antibody-mediated elimination of CD4+lymphocytes in vivo has been successfully used to suppress the humoral response to foreign antigens and to induce long-term tolerance. However, secondary humoral responses, as well as secondary cytolytic responses specific for viral antigens, could not be prevented, providing evidence for functional heterogeneity within the helper cell compartment. Data presented here support the notion that helper cell requirements for cellular responses to alloantigens are unique and do not involve CD4+T lymphocytes. While the administration of anti-CD4 mcAb failed to suppress allospecific CTL responses, the formation of alloantibodies was initially inhibited in parallel to the deficiency in CD4+helper cells. After regeneration of CD4+T cells, the animals regained the ability to produce specific IgG alloantibodies. The dichotomy of helper pathways in humoral and cellular alloreactive responses challenges the concept of a single CD4+helper cell population. Insights into the functional heterogeneity of helper cells for primary, secondary, and allospecific responses might open new avenues for selective manipulation of helper subpopulations.
点击下载:
PDF
(208KB)
返 回