smn protein

RG7800 hydrochloride is an orally active modulator of SMN2 splicing.

Risdiplam (RG7916)是一种中枢和外周分布的并可以通过口服给药的小分子 SMN2 前 mRNA 剪接修饰剂，可增加运动神经元存活 (SMN) 蛋白水平。

Branaplam is a highly potent, selective and orally active SMN2 splicing modulator. Branaplam increases the amount of functional SMN protein produced by the SMN2 gene through modifying its splicing.

Rg3039 (PF-06687859) 是一种具有口服活性、能够透过血脑屏障的DcpS 抑制剂，其IC50=0.069 nM。

NVS-SM2 is an effective small molecule splicing enhancer of SMN2 with oral activity. NVS-SM2 showed increased exon 7 inclusion and upregulated SMN protein expression in SMA fibroblasts and SMN cells Δ7 5025 mouse myoblasts.

SMN2-Stablizer-27 is a stablizer of survival of motor neuron 2 (SMN2), and a post-translationally stablizing SMN protein for the treatment of spinal muscular atrophy (SMA).

The Survival of Motor Neurons (SMN) protein participates in RNA splicing. Decreases in SMN, typically a consequence of defects in the smn1 gene, result in the death of motor neurons and lead to the neurodegenerative disease, spinal muscular atrophy (SMA). Cuspin-1 is a small molecule upregulator of SMN that has been shown in vitro to increase levels of SMN in SMA patient fibroblasts by 50% at 18 μM. Its mechanism of action is thought to involve increased phosphorylation of ERK to initiate Ras-Raf-MEK signaling, which results in an increased rate of SMN translation.

Branaplam (LMI070; NVS-SM1) hydrochloride 是一种选择性的、口服具有活力的 SMN2 拼接调节剂，能够作用于 SMN (EC50: 20 nM)。Branaplam hydrochloride 能够抑制 hERG (IC50: 6.3 μM)。在严重的脊髓性肌萎缩症 (SMA) 小鼠模型中，Branaplam hydrochloride 能够增加全长 SMN 蛋白并提高其生存期。

RG7800 hydrochloride为一可口服SMN2剪接调节剂，其对SMN2剪接及SMN蛋白的EC1.5x值分别为23 nM及87 nM。