Abstract：
:Various fungal products, such as gliotoxin (GT), have immunomodulating activity, a fact exploited previously by our group for prevention of autoimmune diabetes mellitus in BB/Wor rats. To understand better the immunologic effects in GT-treated rats, splenocytes from 65-day-old prediabetic diabetes-prone rats were phenotypically characterized after chronic treatment with GT. A parallel study examined the direct effects of GT on splenocyte preparations incubated with the mycotoxin. In vitro treatment of splenocytes with GT revealed relative decreases in CD4+ and increases in CD8+ T-cell subsets, whereas in vivo treatment with GT did not result in detectable alterations in relative CD4+ and CD8+ cell subsets. We were unable to show significant effects on NK cells or MHC class II cells. However, in vitro and in vivo GT treatments significantly enhanced the detectable RT6 surface marker, a key regulatory element in autoimmune diabetes pathogenesis. This study showed that GT selectively affects certain lymphocyte subsets, possibly through the mechanism of apoptosis, which was increased in vivo as well as in vitro.
journal_name
Ann Clin Lab Scijournal_title
Annals of clinical and laboratory scienceauthors
Liu H,Jackman S,Driscoll H,Larsen Bsubject
Has Abstractpub_date
2000-10-01 00:00:00pages
366-78issue
4eissn
0091-7370issn
1550-8080journal_volume
30pub_type
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journal_title：Annals of clinical and laboratory science
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