National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
R01HL145473
米国
引用
ジャーナル: J Clin Invest / 年: 2025 タイトル: Structural basis for simvastatin-induced skeletal muscle weakness associated with type 1 ryanodine receptor T4709M mutation. 著者: Gunnar Weninger / Haikel Dridi / Steven Reiken / Qi Yuan / Nan Zhao / Linda Groom / Jennifer Leigh / Yang Liu / Carl Tchagou / Jiayi Kang / Alexander Chang / Estefania Luna-Figueroa / Marco C ...著者: Gunnar Weninger / Haikel Dridi / Steven Reiken / Qi Yuan / Nan Zhao / Linda Groom / Jennifer Leigh / Yang Liu / Carl Tchagou / Jiayi Kang / Alexander Chang / Estefania Luna-Figueroa / Marco C Miotto / Anetta Wronska / Robert T Dirksen / Andrew R Marks / 要旨: Statins lower cholesterol, reducing the risk of heart disease, and are among the most frequently prescribed drugs. Approximately 10% of individuals develop statin-associated muscle symptoms (SAMS; ...Statins lower cholesterol, reducing the risk of heart disease, and are among the most frequently prescribed drugs. Approximately 10% of individuals develop statin-associated muscle symptoms (SAMS; myalgias, rhabdomyolysis, and muscle weakness), often rendering them statin intolerant. The mechanism underlying SAMS remains poorly understood. Patients with mutations in the skeletal muscle ryanodine receptor 1 (RyR1)/calcium release channel can be particularly intolerant of statins. High-resolution structures revealed simvastatin binding sites in the pore region of RyR1. Simvastatin stabilized the open conformation of the pore and activated the RyR1 channel. In a mouse expressing a mutant RyR1-T4709M found in a patient with profound statin intolerance, simvastatin caused muscle weakness associated with leaky RyR1 channels. Cotreatment with a Rycal drug that stabilizes the channel closed state prevented simvastatin-induced muscle weakness. Thus, statin binding to RyR1 can cause SAMS, and patients with RyR1 mutations may represent a high-risk group for statin intolerance.
全体 : Complex of RyR1 with Calstabin-1 in presence of simvastatin (Ca2+...
全体
名称: Complex of RyR1 with Calstabin-1 in presence of simvastatin (Ca2+/CFF/ATP condition)
要素
複合体: Complex of RyR1 with Calstabin-1 in presence of simvastatin (Ca2+/CFF/ATP condition)
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超分子 #1: Complex of RyR1 with Calstabin-1 in presence of simvastatin (Ca2+...
超分子
名称: Complex of RyR1 with Calstabin-1 in presence of simvastatin (Ca2+/CFF/ATP condition) タイプ: complex / ID: 1 / 親要素: 0 詳細: 0.03 mM free Ca2+; 5 mM Caffeine; 10 mM ATP; 10 mM Simvastatin lactone
由来(天然)
生物種: Mus musculus (ハツカネズミ)
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実験情報
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構造解析
手法
クライオ電子顕微鏡法
解析
単粒子再構成法
試料の集合状態
particle
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試料調製
濃度
8.5 mg/mL
緩衝液
pH: 7.4 構成要素:
濃度
名称
式
10.0 mmol/L
HEPES
400.0 mmol/L
sodium chloride
NaCl
1.0 mmol/L
EGTA
0.25 %
CHAPS
0.01 %
DOPC
0.5 mmol/L
TCEP
凍結
凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277.15 K / 装置: FEI VITROBOT MARK IV