Laquinimod

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抑制剂描述：

产品名称：Laquinimod

产品别名：见爱必信官网

英文别名：Laquinimod

靶点：NF-kB

CAS：248281-84-7

纯度：＞98%

外观：见爱必信官网

保存方法：store at -20℃ for one year（Powder）； in DMSO or others solvent store at 2-4℃ for two weeks, at -20℃ for six months.

描述：

Laquinimod是一种中枢神经系统（CNS）免疫调节剂。0.1-1 μM Laquinimod 处理不影响外周血单核细胞(PBMC)活性。通过在健康对象和复发缓解型多发性硬化症(RRMS)患者的PBMC中进行大规模基因表达芯片分析 ,显示 Laquinimod 抑制与抗原呈递及相应炎症通路相关的基因表达。Laquinimod作用于CD14⁺ 和 CD4⁺细胞，诱导Th2反应激活，作用于CD8⁺细胞，抑制增殖。

溶解性：Ethanol ：1 mg/mL (2.8 mM)
DMSO ：57 mg/mL (159.8 mM)

体外研究：

Laquinimod treatment at 0.1-1 μM does not affect the viability of peripheral blood mononuclear cells (PBMC). By performing the large-scale gene expression microarray analysis in PBMC from healthy subjects or relapsing-remitting multiple sclerosis (RRMS) patients, Laquinimod is shown to induce suppression of genes related to antigen presentation and corresponding inflammatory pathways. Laquinimod induces activation of Th2 response in CD14+ and CD4+ cells and suppression of proliferation in CD8+ cells. Laquinimod displays significant effects on immune modulation related to the suppression of antigen presenting mechanism followed by a decrease of chemotaxis and adhesion, and exhibits potent anti-inflammatory potency through the suppression of the NF-κB pathway that concordantly leads to the activation of apoptosis of immuno-competent cells.

体内研究：Administration of Laquinimod (0.16-16 mg/kg/day) dose-dependently inhibits the incidence of experimental autoimmune neuritis (EAN) in Lewis rats, ameliorates clinical signs and inhibits P0 peptide 180-199-specific T cell responses as well as the inflammation and demyelination in the peripheral nerves, suggesting that Laquinimod may mediate its effects by regulation of Th1/Th2 cytokine balance. Laquinimod significantly inhibits the development of murine acute experimental autoimmune encephalomyelitis (EAE), being approximately 20 times more potent than the immunomodulator roquinimex. Laquinimod treatment inhibits the development of experimental autoimmune encephalomyelitis (EAE) in the Lewis rat in a dose-dependent manner, and shows better disease inhibitory effects as compared to roquinimex (Linomide). Laquinimod potently inhibits the development of chronic experimental autoimmune encephalomyelitis (chEAE) in IFN-beta k.o. mice and wild type mice. Laquinimod reduces clinical signs, inflammation, and demyelination in C57BL/6 mice with active EAE induced with MOG(35-55) peptide, and down-regulates VLA-4-mediated adhesiveness and pro-inflammatory cytokines such as IL-17. The study of Laquinimod in the mice model of EAE using a conditional BDNF knockout strain lacking BDNF expression in myeloid cells and T cells (LLF mice) indicates Laquinimod also modulates autoimmune demyelination via induction of brain-derived neurotrophic factor (BDNF).

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