ArticleMedical oncology (Northwood, London, England)2010
Low molecular weight fraction secreted by SKOV3 cells expands peripheral CD4+CD25+ regulatory T cells and enhances their suppressive capacity.
Article in Medical oncology (Northwood, London, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The increase of CD4+CD25+ regulatory T cells in patients with ovarian carcinoma has been verified. Here we investigated the effects of supernatant derived from ovarian carcinoma cell SKOV3 on peripheral regulatory T cells. Supernatant from SKOV3 was collected and fractionated into three different molecular weight fractions (MWFs). The proliferation of the CD4+CD25+ regulatory T cells cultured in complete RPMI 1640 medium with the different stimulators was detected. The phenotype (GITR and CTLA-4) of natural and expanded CD4+CD25+ T cells was detected by flow cytometry. Foxp3 mRNA expression of low MWF-expanded CD4+CD25+ T cells was detected by RT-PCR. Those expanded CD4+CD25+ regulatory T cells showed enhanced capacity to suppress CD4+CD25- T proliferation and increased expression of GITR and CTLA-4. In brief, low molecular weight fraction of supernatant secreted by SKOV3 could expand peripheral CD4+CD25+ regulatory T cells and enhance their suppressive function.
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