微RNA-133和心肌肥厚钙调磷酸酯酶控制的相互抑制(英文).ppt

Background Calcineurin/NFAT pathway induces Cardiac Hypertrophy Calcineurin activation in cardiac hypertrophy Decreased miR-133 expression in cardiac hypertrophy Overexpression of miR-133 inhibits cardiac hypertrophy Inhibition of miR-133 induces cardiac hypertrophy 1. Calcineurin-Dependent Cardiac Hypertrophy 1. Calcineurin-Dependent Cardiac Hypertrophy 1.Calcineurin-Dependent Cardiac Hypertrophy 2. Calcineurin Activation in cardiac hypertrophy * * Reciprocal Repression between MicroRNA-133 and Calcineurin Controls Cardiac Hypertrophy: A Novel Mechanism for Progressive Cardiac Hypertrophy De-Li Dong, Yan-Jie Lu, Bao-Feng Yang (董德利 吕延杰 杨宝峰) Department of Pharmacology Harbin Medical University, P.R.China Aug.20-22,2009.Dalian Aug.20-22,2009.Dalian Jeffery D. Molkentin et al. Cell,1998; 93,215–228. Aug.20-22,2009.Dalian Jeffery D. Molkentin et al. Cell,1998; 93,215–228. Aug.20-22,2009.Dalian Jeffery D. Molkentin et al. Cell,1998; 93,215–228. Aug.20-22,2009.Dalian Overexpression of calcineurin in mouse causes sudden cardiac death associated with decreased density of K channels Deli Dong. et al. Cardiovascular Research 57 (2003) 320–332 Aug.20-22,2009.Dalian Hae W. Lim et al.Circulation. 2000;101:2431-2437. Aug.20-22,2009.Dalian 3. Calcineurin/NFAT Coupling Participates in Pathological, but not Physiological, Cardiac Hypertrophy Wilkins BJ, et al. Circ Res. 2004;94:110-118. Aug.20-22,2009.Dalian Carè A et al. Nat Med. 2007;13(5):613-8. 4. Decreased miR-133 expression in cardiac hypertrophy Aug.20-22,2009.Dalian 5. Overexpression of miR-133 inhibits cardiac hypertrophy Carè A et al. Nat Med. 2007;13(5):613-8. Aug.20-22,2009.Dalian 6. Inhibition of miR-133 induces cardiac hypertrophy Carè A et al. Nat Med. 2007;13(5):613-8. Aug.20-22,2009.Dalian Hypothesis: Interaction between miR-133 and calcineurin in cardiac hypertrophy? ◆ Calcineurin is the target of miR-133; ◆ The expression of miR-133 is regulated by calcineurin/NFAT signaling pathway.