期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 104, 期 9, 页码 3378-3383出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0611098104
关键词
pregnancy
资金
- NIAID NIH HHS [AI053330, R01 AI053330, R56 AI053330, AI50207, R01 AI050207] Funding Source: Medline
During pregnancy the uterine decidua is populated by large numbers of natural killer (N K) cells with a phenotype CD56(superbright)CD16(-)CD9(+)KIR(+) distinct from both subsets of peripheral blood NK cells. Culture of highly purified CD16(+)CD9(-)peripheral blood NK cells in medium containing TGF beta 1 resulted in a transition to CD16-CD9+ NK cells resembling clecidual INK cells. Decidual stromal cells, when isolated and cultured in vitro, were found to produce TGF beta 1. Incubation of peripheral blood NK cells with conditioned medium from clecidual stromal cells mirrored the effects of TGF beta 1. Similar changes may occur upon NK cell entry into the decidua or other tissues expressing substantial TGF beta. In addition, Lin(-)CD34(+)CD45(+) hematopoietic stem/progenitor cells could be isolated from clecidual tissue. These progenitors also produced NK cells when cultured in conditioned medium from clecidual stromal cells supplemented with IL-15 and stem cell factor.
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