| Description | BAPTA-AM is a calcium chelator that is cell-permeable and selective, blocking hERG, hKv1.3, and hKv1.5 channels (IC50=1.3/1.45/1.23 μM). BAPTA-AM has a 105-fold higher affinity for Ca2+ than for Mg2+, and can be used for the role of calcium in cell signaling. |
| In vitro | 方法：软骨细胞用 BAPTA-AM (10 μM) 和 FAC (100 μM) 处理 24 h，使用 Reactive Oxygen Species Assay kit 检测细胞内 ROS 水平。结果：FAC 促进 ROS 的产生，并且这种作用被 钙螯合剂 BAPTA-AM 抑制。[1]方法：大鼠成纤维细胞 RAT2 和 Xenopus 细胞用 BAPTA-AM (50 μM) 处理 1 h，使用 Immunostaining 检测微管解聚情况。结果：BAPTA AM 处理 30 min 后在大多数细胞中几乎完全解体，并且微管在 60 min 内在细胞中均匀解聚。[2] |
| In vivo | 方法：为研究对乙醇诱导的运动活性的影响，将 BAPTA-AM (0-10 mg/kg，Cremophor EL 1.25% (v/v) in distilled water) 腹腔注射给 Swiss (RjOrl) 小鼠，30 min 后注射 ethanol (0-4 g/kg)。结果：用 BAPTA-AM 预处理可以在不改变基础运动的情况下阻止乙醇产生的运动刺激。相反，BAPTA-AM 逆转了乙醇诱导的催眠作用。[3]方法：为研究对 LPS 诱导的血脑屏障渗漏的影响，将 BAPTA-AM (12 mg/kg，0.01% pluronic acid in sterile saline) 静脉注射给 FVB 小鼠，30 min 后腹腔注射 LPS (25 mg/kg)。结果：BAPTA-AM 可减少 LPS 诱导的血脑屏障渗漏。[4] |
| Target activity | Kv1.3 (human, HEK293 cells):1.45 μM (IC50), Kv1.5 (human, HEK293 cells):1.23 μM (IC50), ERG channel (human, HEK293 cells):1.3 μM (IC50) |
| Synonyms | BAPTA/AM |
| molecular weight | 764.68 |
| Molecular formula | C34H40N2O18 |
| CAS | 126150-97-8 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 50 mg/mL (65.39 mM), Sonication is recommended. |
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