Conditional Deletion of Smad1 Ameliorates Glomerular Injury in Progressive Glomerulonephritis

書誌事項

タイトル
Conditional Deletion of Smad1 Ameliorates Glomerular Injury in Progressive Glomerulonephritis
タイトル別名
  • Smad1の条件付き遺伝子削除は進行性糸球体腎炎による糸球体傷害を改善する
著者
荒木, 真
著者別名
  • アラキ, マコト
  • Araki, Makoto
著者
マツバラ, タケシ
著者別名
  • Matsubara, Takeshi
著者
安部, 秀斉
著者別名
  • アベ, ヒデハル
  • Abe, Hideharu
著者
トリコシ, カズオ
著者別名
  • Torikoshi, Kazuo
著者
美馬, 晶
著者別名
  • ミマ, アキラ
  • Mima, Akira
著者
イエハラ, ノリユキ
著者別名
  • Iehara, Noriyuki
著者
フカツ, アツシ
著者別名
  • Fukatsu, Atsushi
著者
キタ, トオル
著者別名
  • Kita, Toru
著者
アライ, ヒデノリ
著者別名
  • Arai, Hidenori
著者
土井, 俊夫
著者別名
  • ドイ, トシオ
  • Doi, Toshio
学位授与大学
徳島大学
取得学位
博士(医学)
学位授与番号
乙医第1752号
学位授与年月日
2017-11-30

説明

Matrix expansion and cell proliferation are concomitantly observed in various glomerular injuries. However, the molecular mechanisms responsible for these changes have not been fully elucidated. We have reported that Smad1 is a key signalling molecule that regulates the transcription of type IV collagen (Col4) in mesangial matrix expansion and is thereby involved in glomerular injury in an acute model of glomerulonephritis. In this study, we addressed the role of Smad1 signalling in accelerated nephrotoxic nephritis (NTN), a model of progressive glomerulonephritis, using conditional deletion of Smad1 in Rosa26CreERT2 mice (Smad1-CKO). Mesangial matrix expansion in the Smad1-CKO mice with NTN was significantly inhibited compared with that in wild type mice with NTN, which was consistent with the decrease in Col4 expression level. On the other hand, STAT3 activation and cell proliferation were not influenced by Smad1 deletion in the NTN model. Therefore, we investigated another factor that activates cell proliferation in the absence of Smad1. Id2 induced VEGF secretion and subsequent STAT3 activation, independently of Smad1 expression in mouse mesangial cells. Here we show that Smad1 plays an important role in the development of glomerular injury without affecting cell proliferation, in progressive glomerulonephritis.

詳細情報 詳細情報について

問題の指摘

ページトップへ