Evaluation of prostaglandin E2 and E-series prostaglandin receptor in patients with interstitial cystitis
著者
和田, 直樹
(Wada, Naoki)
飴田, 要
(Ameda, Kaname)
古野, 剛史
(Furuno, Tsuyoshi)
岡田, 啓希
(Okada, Hiroki)
伊達, 一郎
(Date, Ichiro)
柿崎, 秀宏
(Kakizaki, Hidehiro)
上位タイトル
The Journal of urology
Vol.193,
No.6
(2015.
6)
,p.1987-
1993
識別番号
ISSN
0022-5347
DOI
10.1016/j.juro.2015.01.010
その他
PMID:25595860
抄録
PURPOSE:
We evaluated PGE2 and EP receptor in patients with interstitial cystitis.
MATERIALS AND METHODS:
Enrolled in the study were 20 female patients with interstitial cystitis (11 with and 9 without Hunner lesions), 9 female controls with another urological disease who needed a cystoscopic procedure and 10 normal volunteers. In all participants we determined O'Leary-Sant symptom and problem scores, and obtained voluntary urine specimens for PGE2 analysis. Using anesthesia the bladder was distended by saline in stepwise fashion from 100 ml to maximum capacity in patients with interstitial cystitis. Each time the infused saline was retrieved for PGE2 analysis. We also measured PGE2 and the expression of EP receptor mRNA in bladder biopsy tissue in patients with interstitial cystitis.
RESULTS:
Symptom and problem indexes in patients with interstitial cystitis and Hunner lesions were significantly higher than in patients with interstitial cystitis without Hunner lesions. Urinary PGE2 in patients with interstitial cystitis and Hunner lesions was significantly higher than in patients with interstitial cystitis without lesions, controls and normal volunteers. PGE2 in retrieved saline in patients with interstitial cystitis and Hunner lesions increased depending on infusion volume but not in patients with interstitial cystitis without lesions. PGE2 content in bladder biopsy tissue was significantly higher in patients with interstitial cystitis and Hunner lesions than in controls. In patients with interstitial cystitis and Hunner lesions the expression of EP1 and EP2 mRNA was significantly higher than in controls.
CONCLUSIONS:
Our study showed increased PGE2 production and mRNA expression of EP1 and EP2 receptors in the bladder in patients with interstitial cystitis and Hunner lesions. Further studies are warranted to explore the pathophysiological and therapeutic implications.
