basophil

R112 是 ATP 竞争性的 Syk 激酶抑制剂，它能够抑制 Syk 激酶活性，Ki=6 nM，IC50=226 nM。

Benralizumab (MEDI-563) 是一种靶向白介素 5 受体 α (IL-5Rα) 单克隆抗体，通过增强抗体依赖性细胞介导的细胞毒性促使嗜酸性粒细胞快速进行反应。Benralizumab 可用于严重的嗜酸性哮喘，可用于预防慢性阻塞性肺病加重。

ST-1006是一种强效组胺 H4受体激动剂（pKi：7.94）。ST-1006具有抗炎作用。ST-1006是一种有效的嗜碱性粒细胞迁移诱导剂，可诱导嗜碱性粒细胞迁移。 ST-1006 具有抗炎作用和止痒作用。

Emedastine (LY188695) 是一种可口服的，选择性和高亲和力的组胺 H1受体拮抗剂，Ki 值为 1.3 nM。它是苯并咪唑衍生物，可用于过敏性鼻炎、过敏性皮肤疾病和过敏性结膜炎的研究。

FR-A 19, a Histamine H2 agonist, inhibits the release of IgE-mediated human basophil histamine in a nanomolar range. It has additional potent anti-allergic properties.

3-Methylhistamine dihydrochloride 是一种组胺的降解产物，与免疫反应有关，并在接种过疫苗的小鼠中表现出上调作用。

Tylogenin, a steroidal aglycone generated by acid hydrolysis from two seasonal glycosides occurring in Tylophora sylvatica, inhibits IgE-induced basophil mediator release for allergic reactions. In the rabbit basophil-dependent serotonin release (BDSR) assay system, the inhibitory activity of tylogenin was significantly greater than that of its parent glycosides, tylophoroside and acetyltylophoroside, and that of dexamethasone. The activity of tylogenin was found to increase with the incubation time. In the human leukocyte-dependent histamine release test model, the glycosides had only a minimal activity. In contrast, tylogenin, with a geom mean IC50 = 49 microM, exerted a significantly greater potency than dexamethasone. These results suggest that tylogenin could represent a new class of antiallergic agents.

Thapsigargicin（Thapsigargicine）作为肥大细胞和白细胞的激活剂，能诱导大鼠腹膜肥大细胞及人嗜碱性粒细胞释放组胺，并提升完整人血小板中的细胞质游离钙水平。