絞り込み

16636

広告

新種の光るクモヒトデ発見…中部大チーム、海底洞窟で (読売新聞)

オーストラリアのクリスマス島の海底洞窟で、新種の光るクモヒトデを発見したと、中部大の大場裕一教授(発光生物学)らの研究チームが発表した。シンガポールの学術誌に論...

  1. 眠れる鉱物標本、最新技術で脚光 京大「比...
  2. [企業] テレビ広告に薬価を表示させるの...
  3. [企業] Lilly 馴染みのInnov...
  4. ロシアの船舶型原発、北部の港で稼働へ 輸...

ニュース一覧

Liraglutide protects renal mesangial cells against hyperglycemia‑mediated mitochondrial apoptosis by activating the ERK‑Yap signaling pathway and upregulating Sirt3 expression.

著者 Li J , Li N , Yan S , Lu Y , Miao X , Gu Z , Shao Y
Mol Med Rep.2019 Feb 08 ; ():.
この記事をPubMed上で見るPubMedで表示
この記事をGoogle翻訳上で見る Google翻訳で開く

スターを付ける スターを付ける     (32view , 0users)

Full Text Sources

Diabetic nephropathy results from hyperglycemia‑mediated renal glomerular cell death via mitochondrial apoptosis. There is an emerging requirement for novel approaches with mitochondrial protective effects that alleviate the hyperglycemia‑induced loss of functional cells during diabetic renal damage. Liraglutide, a type of glucagon‑like peptide‑1 agonist, has been suggested to inhibit the progression of obesity and hyperglycemia. However, the contributions and mechanism of action of liraglutide on hyperglycemia‑mediated cell mitochondrial apoptosis in diabetic kidneys have not been illustrated. The present study demonstrated that liraglutide may protect human renal mesangial cells (HRMCs) against hyperglycemia‑induced cell death by inhibiting mitochondrial apoptosis. Liraglutide administration also maintained HRMC viability and promoted HRMC proliferation within a high glucose stress environment. Functional studies demonstrated that hyperglycemia triggered mitochondrial dysfunction, including mitochondrial potential reduction, mitochondrial permeability transition pore opening, reactive oxygen species overproduction and the activation of the mitochondrial apoptotic pathway. However, liraglutide treatment preserved mitochondrial function and prevented activation of mitochondrial apoptosis by upregulating sirtuin 3 (Sirt3) expression. Deletion of Sirt3 abrogated the protective effects of liraglutide on mitochondrial homeostasis following high glucose challenge. In addition, molecular analysis confirmed that liraglutide upregulated Sirt3 via activating the extracellular signal‑regulated kinase‑Yes‑associated protein (ERK‑Yap) signaling pathway. Inhibition of the ERK‑Yap axis negated the action of liraglutide on Sirt3 activation, leading to mitochondrial injury and HRMC apoptosis. Taken together, the present study illustrated that liraglutide protected renal mesangial cells from hyperglycemia‑mediated mitochondrial apoptosis by upregulating Sirt3 expression and activation of the ERK‑Yap signaling pathway.
PMID: 30816450 [PubMed - as supplied by publisher]
印刷用ページを開く Endnote用テキストダウンロード