ID 111618
Author
Kamamura, Yoshitaka The University of Tokushima
Takahashi, Keiji The University of Tokushima
Komaki, Kansei The University of Tokushima
Keywords
breast cancer
IL-2
IFN-α
IFN-γ
LAK
Content Type
Journal Article
Description
We examined the effect of recombinant IFN-α and IFN-γ on induction of LAK cells from peripheral blood mononuclear cells (PBMNCs) in 7 pre-operative breast cancer patients and 4 healthy volunteers. Significant LAK activity was developed from PBMNCs of pre-operative breast cancer patients and healthy volunteers after incubation for 4 days with IL-2 (presence of IL-2 vs. absence of IL-2). Incubation of PBMNCs of pre-operative breast cancer patients with 1000 U/ml of IFN-α for 4 days suppressed the LAK activity significantly (P<0.05). By contrast, incubation of PBMNCs of pre-operative patients with 1000 U/ml of IFN-γ for 4 days increased the LAK activity significantly (P<0.05). Significant cytotoxicity againstMCF-7 cells (estrogen receptor positive human breast cancer cell line) was developed from PBMNCs of pre-operative breast cancer patients at 20:1and 40:1E/T ratios after incubation for 4days with IL-2 (absence of IL-2vs. 20:1or40:1, P<0.05, P<0.05), whereas PBMNCs of healthy volunteers did not. Stimulation of LAK cells with IFN-γ produced a significant augmentation of cytotoxic activity against MCF-7 (P<0.05), while IFN-α suppressed the cytotoxicity significantly (P<0.05). These findings suggested that combined stimulation by IFN-γ and IL-2 might be a reasonable treatment for breast cancer patients.
Journal Title
The Journal of Medical Investigation
ISSN
13431420
NCID
AA11166929
Publisher
The University of Tokushima School of Medicine
Volume
45
Issue
1-4
Start Page
71
End Page
75
Sort Key
71
Published Date
1998-08
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Medical Sciences