Abstract:
:Caffeic acid phenethyl ester (CAPE), an the active component of propolis, is known to have anticarcinogenic, antiviral and various biological activities; however, the effect of CAPE on the immunomodulatory activity in vivo remains unknown. We have investigated the effect of CAPE on the immune system in female Balb/c mice. CAPE (0, 5, 10, 20 mg/kg) was given to mice orally for 14 days. Immunomodulatory activity was evaluated by assessment of body and organ weight, lymphocyte blastogenesis, plaque-forming cell (PFC) assay, lymphocyte subpopulation by flow cytometry and cytokine production. Even though the change of body weight was not observed in CAPE-administered group, thymus weight and/or cellularity of thymus and spleen are decreased at the all dose groups of CAPE (5, 10, 20 mg/kg). On the other hand, CAPE had no effect on B lymphocyte proliferation induced by lipopolysaccharide (LPS) but increased T lymphocyte blastogenesis induced by concanavalin A (Con A) at the dose of 20 mg/kg. In the case of lymphocyte subpopulation, the population of T and B cells was not changed but CD4(+) T cell subsets are significantly increased in exposure to CAPE. The antibody responses to T lymphocyte dependent antigen, sheep red blood cell and keyhole limpet hemocyanin (KLH) were increased more than 10 mg/kg in CAPE-treated group. Likewise, the cytokine, IL-2, IL-4 and IFN-gamma were significantly increased at the dose of 20 mg/kg CAPE group. These results suggest that CAPE could have immunomodulatory effects in vivo.
journal_name
Int Immunopharmacoljournal_title
International immunopharmacologyauthors
Park JH,Lee JK,Kim HS,Chung ST,Eom JH,Kim KA,Chung SJ,Paik SY,Oh HYdoi
10.1016/j.intimp.2004.01.013keywords:
subject
Has Abstractpub_date
2004-03-01 00:00:00pages
429-36issue
3eissn
1567-5769issn
1878-1705pii
S1567-5769(04)00019-0journal_volume
4pub_type
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