Effect of 15-deoxy-delta12,14-prostaglandin J2 on IL-1beta-induced expression of epithelial neutrophil-activating protein-78 in human endothelial cells.
Epithelial neutrophil-activating peptide-78 (ENA-78) is a member of CXC chemokines. It is produced by endothelial cells stimulated with interleukin-1 (IL-1), along with other CXC chemokines such as IL-8 and growth-related oncogene protein-alpha (GRO-alpha). IL-1-induced ENA-78 production by endothelial cells may be important for the regulation of neutrophil activation. 15-Deoxy-Delta(12,14)-prostaglandin J(2) (15d-PGJ(2)) is a natural ligand for peroxisome proliferator-activated receptor-gamma (PPAR-gamma) and affects the expression of various genes. We examined the effect of 15d-PGJ(2) on the expression of ENA-78 in cultured endothelial cells stimulated with IL-1beta. 15d-PGJ(2) inhibited the IL-1beta-induced expression of ENA-78, but not the expression of IL-8 or GRO-alpha in response to IL-1. Ciglitazone, another agonist for PPAR-gamma, had no effect on the expression of ENA-78, suggesting that 15d-PGJ(2) may inhibit the expression of ENA-78 in a PPAR-gamma-independent manner. 15d-PGJ(2) may modulate inflammatory reactions by regulating the balance of CXC chemokines in endothelial cells.
Imaizumi
Tadaatsu
T
Department of Vascular Biology, Institute of Brain Science, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan. timaizum@cc.hirosaki-u.ac.jp
Kumagai
Mika
M
Hatakeyama
Masaharu
M
Tamo
Wakako
W
Yamashita
Koji
K
Yoshida
Hidemi
H
Munakata
Hirofumi
H
Satoh
Kei
K
D054365:Chemokine CXCL5; D019743:Chemokines, CXC; D042783:Endothelial Cells / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D004730:Endothelium, Vascular / Q000166:cytology / Q000378:metabolism; D005786:Gene Expression Regulation; D006801:Humans; D007155:Immunologic Factors / Q000378:metabolism*; D007375:Interleukin-1 / Q000378:metabolism* / Q000494:pharmacology; D016209:Interleukin-8 / Q000031:analogs & derivatives / Q000235:genetics / Q000378:metabolism*; D015230:Prostaglandin D2 / Q000031:analogs & derivatives / Q000378:metabolism*; D012333:RNA, Messenger / Q000378:metabolism; D018160:Receptors, Cytoplasmic and Nuclear / Q000819:agonists / Q000378:metabolism; D014157:Transcription Factors / Q000819:agonists / Q000378:metabolism
C097240:15-deoxy-delta(12,14)-prostaglandin J2; C486263:CXCL5 protein, human; D054365:Chemokine CXCL5; D019743:Chemokines, CXC; D007155:Immunologic Factors; D007375:Interleukin-1; D016209:Interleukin-8; D012333:RNA, Messenger; D018160:Receptors, Cytoplasmic and Nuclear; D014157:Transcription Factors; D015230:Prostaglandin D2