1. Protein Tyrosine Kinase/RTK Neuronal Signaling Immunology/Inflammation
  2. Itk Trk Receptor Interleukin Related IFNAR
  3. PF-07245303

PF-07245303 是一种 ITK/TRK 抑制剂。PF-07245303 可减少 IL-4 等炎症因子、IFNγ 的产生,抑制 PLCγ1 磷酸化。PF-07245303 抑制神经生长因子诱导的嗜碱性粒细胞活化,抑制 TRKA 磷酸化。PF-07245303 降低小鼠耳组织中恶唑酮诱导的耳肿胀。PF-07245303 可用于特应性皮炎的相关研究。

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PF-07245303

PF-07245303 Chemical Structure

CAS No. : 2655556-75-3

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Customer Review

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

PF-07245303 is a ITK/TRK inhibitor. PF-07245303 reduces the production of inflammatory cytokines such as IL-4 and IFNγ, and inhibits the phosphorylation of PLCγ1. PF-07245303 inhibits nerve growth factor-induced basophil activation and the phosphorylation of TRKA. PF-07245303 reduces oxazolone-induced ear swelling in mouse ear tissues. PF-07245303 is applicable to research related to atopic dermatitis[1].

IC50 & Target[1]

TrkA

2.94 nM (Kd)

TrkB

8.76 nM (Kd)

TrkC

10 nM (Kd)

体外研究
(In Vitro)

PF-07245303 (0.49-40 nM; 60 s association phase, 60-480 s dissociation phase) 可与重组人 ITK、TRKA、TRKB 和 TRKC 蛋白强效结合,其 Kd 值分别为 0.71 nM、2.94 nM、8.73 nM 和 10 nM[1]
PF-07245303 可在 1 mM ATP 条件下强效抑制全长人源 ITK 蛋白的酶活性,其 IC50 为 5.62 nM[1]
PF-07245303 (0-10 μM; 30 min pre-incubation, 5 min activation) 可强效抑制经抗 CD3/CD28 激活的 Jurkat T 细胞中 ITK 依赖的 PLCγ1 磷酸化,其 IC50 为 154 nM[1]
PF-07245303 可强效抑制经抗 CD3/CD28 激活的人原代 CD4+ T 细胞释放 IL-2,其 IC50 为 38.5 nM[1]
PF-07245303 可抑制经抗 CD3/CD28/CD2 激活的人全血 T 细胞释放 IL-2,其 IC50 为 1350 nM (经蛋白结合校正后为 122 nM)[1]
PF-07245303 (20-24 h) 可抑制经抗 CD3/CD28 活化的人原代 CD4+ T 细胞释放 IL-4、IL-13、IFNγ、IL-17A 和 IL-10,其对应的 IC50 值分别为 73.5 nM、348 nM、73.2 nM、282 nM 和 114.5 nM[1]
PF-07245303 (6-7 天) 可抑制分化后的人 Th1、Th2 和 Th17 细胞的细胞因子释放,其对 IFNγ、IL-13 和 IL-17A 的 IC50 值分别为 35.4 nM、60.9 nM 和 12.5 nM[1]
PF-07245303 可强效抑制经抗 CD3/CD28 激活的人原代 CD8+ T 细胞释放 IFNγ,其 IC50 为 18.9 nM[1]
PF-07245303 可强效抑制人源 TRKA、TRKB 和 TRKC 胞质结构域的酶活性,在 1 mM ATP conditions 下的平均 IC50 值分别为 7.2 nM、12.0 nM 和 20.7 nM[1]
PF-07245303 可抑制 U2OS 细胞 (表达 p75) 中配体诱导的人源 TRKA、TRKB 和 TRKC 的磷酸化作用,其 IC50 值分别为 72.6 nM、48.7 nM 和 21.7 nM[1]
PF-07245303 可抑制 NGF 诱导的人原代血嗜碱性粒细胞活化,其 IC50 为 442 nM (经蛋白结合校正后为 39.8 nM)[1]
PF-07245303 (0.1-10 μM; 24 h IL-4/IL-13 pre-treatment, 5 min NGF co-incubation) 可抑制经 IL-4/IL-13 预处理的人皮肤外植体中 NGF 诱导的 TRKA 磷酸化[1]
PF-07245303 (0.3-10 μM; 24 h) 以浓度依赖方式抑制抗 CD3/CD28 诱导的 IFNG、IL13 和 IL2 mRNA 表达,在 10 μM 时几乎完全抑制;同时该物质还可抑制 IL-2 蛋白释放,在 1、3 和 10 μM 时抑制作用显著[1]

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis[1]

Cell Line: Jurkat T cells (Clone E6-1)
Concentration: 0, 0.001, 0.003, 0.01, 0.03, 0.1, 1, 3.2, 10 μM
Incubation Time: 30 min (pre-incubation); 5 min (activation)
Result: Inhibited anti-CD3/CD28-induced phosphorylation of PLCγ1 in a concentration-dependent manner, with an IC50 of 154 nM.
体内研究
(In Vivo)

PF-07245303 (2%;局部给药;每日 1 次) 可显著降低小鼠耳组织中恶唑酮诱导的耳肿胀、疾病严重程度评分及促炎细胞因子水平,在多个时间点观察到耳厚度被抑制 43%-61%[1]

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: BALB/c (female, 8-10 weeks of age, oxazolone-induced contact hypersensitivity model)[1]
Dosage: 2%
Administration: topical; daily; starting one hour after the first oxazolone challenge, On days 4, 7, 9, and 11 after the start of oxazolone stimulation
Result: Inhibited oxazolone-induced ear thickness by 43% - 61% at days 4, 7, 9, and 11 after initiation of challenge.
Reduced visual and histological composite disease scores relative to vehicle treatment.
Moderately decreased ear tissue protein levels of IL-4, IL-10, IL-17A, GM-CSF, and TNFα.
Showed no difference in ear tissue protein levels of IL-2 and IFNγ compared to vehicle.
Moderately decreased scores for dermal inflammatory cell infiltrates and epithelial endpoints including hyperplasia, ulceration, thinning, and surface hyperkeratosis.
分子量

448.56

Formula

C25H32N6O2

CAS 号
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

纯度 & 产品资料
参考文献
  • 摩尔计算器

  • 稀释计算器

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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