Sustained-release prostacyclin analog ONO-1301 ameliorates tubulointerstitial alterations in a mouse obstructive nephropathy model

Tatsuyo Nasu, Masaru Kinomura, Katsuyuki Tanabe, Hiroko Yamasaki, Su le Htay, Daisuke Saito, Norikazu Hinamoto, Hiroyuki Watatani, Haruyo Ujike, Yoshinori Suzuki, Takeshi Sugaya, Hitoshi Sugiyama, Yoshiki Sakai, Kunio Matsumoto, Yohei Maeshima, Hirofumi Makino

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Abstract

Tubulointerstitial injuries are crucial histological alterations that predict the deterioration of renal function in chronic kidney disease. ONO-1301, a novel sustained-release prostacyclin analog, accompanied by thromboxane synthase activity, exerts therapeutic effects on experimental pulmonary hypertension, lung fibrosis, cardiomyopathy, and myocardial ischemia, partly associated with the induction of hepatocyte growth factor (HGF). In the present study, we examined the therapeutic efficacies of ONO-1301 on tubulointerstitial alterations induced by unilateral ureteral obstruction (UUO). After inducing unilateral ureteral obstruction in C57/BL6J mice, a single injection of sustained-release ONO-1301 polymerized with poly (D,L-lactic-co-glycolic acid) sustained-release ONO-1301 (SR-ONO) significantly suppressed interstitial fibrosis, accumulation of types I and III collagen, increase in the number of interstitial fibroblast-specific protein-1 (FSP-1)+ cells, and interstitial infiltration of monocytes/macrophages (F4/80+) in the obstructed kidneys (OBK; day 7). Treatment with SR-ONO significantly suppressed the increase of the renal levels of profibrotic factor TGF-β and phosphorylation of Smad2/3, and elevated the renal levels of HGF in the OBK. In cultured mouse proximal tubular epithelial cells (mProx24), ONO-1301 significantly ameliorated the expression of fibroblast-specific protein-1 and α-smooth muscle actin as well as phosphorylation of Smad3 and increased the expression of zonula occludens-1 and E-cadherin in the presence of TGF-β1 as detected by immunoblot and immunocytochemistry, partly dependent on PGI2 receptor-mediated signaling. Administration of rabbit anti-HGF antibodies, but not the control IgG, partly reversed the suppressive effects of SR-ONO on tubulointerstitial injuries in the OBK. Taken together, our findings suggest the potential therapeutic efficacies of ONO-1301 in suppressing tubulointerstitial alterations partly mediated via inducing HGF, an antifibrotic factor counteracting TGF-β.

Original languageEnglish
JournalAmerican Journal of Physiology - Renal Physiology
Volume302
Issue number12
DOIs
Publication statusPublished - Jun 15 2012

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Epoprostenol
Hepatocyte Growth Factor
Kidney
Ureteral Obstruction
Fibrosis
Epoprostenol Receptors
Phosphorylation
Collagen Type III
ONO 1301
Tight Junctions
Thromboxanes
Wounds and Injuries
Therapeutic Uses
Cadherins
Collagen Type I
Cardiomyopathies
Chronic Renal Insufficiency
Pulmonary Hypertension
Myocardial Ischemia
Smooth Muscle

Keywords

  • FSP-1
  • HGF
  • Prostacyclin
  • TGF-β1
  • Unilateral ureteral obstruction

ASJC Scopus subject areas

  • Physiology
  • Urology

Cite this

Sustained-release prostacyclin analog ONO-1301 ameliorates tubulointerstitial alterations in a mouse obstructive nephropathy model. / Nasu, Tatsuyo; Kinomura, Masaru; Tanabe, Katsuyuki; Yamasaki, Hiroko; le Htay, Su; Saito, Daisuke; Hinamoto, Norikazu; Watatani, Hiroyuki; Ujike, Haruyo; Suzuki, Yoshinori; Sugaya, Takeshi; Sugiyama, Hitoshi; Sakai, Yoshiki; Matsumoto, Kunio; Maeshima, Yohei; Makino, Hirofumi.

In: American Journal of Physiology - Renal Physiology, Vol. 302, No. 12, 15.06.2012.

Research output: Contribution to journalArticle

Nasu, Tatsuyo ; Kinomura, Masaru ; Tanabe, Katsuyuki ; Yamasaki, Hiroko ; le Htay, Su ; Saito, Daisuke ; Hinamoto, Norikazu ; Watatani, Hiroyuki ; Ujike, Haruyo ; Suzuki, Yoshinori ; Sugaya, Takeshi ; Sugiyama, Hitoshi ; Sakai, Yoshiki ; Matsumoto, Kunio ; Maeshima, Yohei ; Makino, Hirofumi. / Sustained-release prostacyclin analog ONO-1301 ameliorates tubulointerstitial alterations in a mouse obstructive nephropathy model. In: American Journal of Physiology - Renal Physiology. 2012 ; Vol. 302, No. 12.
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