Pentostatin
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
Pentostatin是核苷类似物,有效抑制腺苷脱氨酶。Pentostatin具有广泛的免疫调节活性[1]。此嘌呤类似物抑制增殖并诱导T细胞凋亡,而仅伴有轻度毒性,可用于治疗激素难治性急性移植物抗宿主病(aGVHD)[2]。
慢性移植物抗宿主病(cGVHD)是造血干细胞移植(HSCT)后晚期发病率和非复发死亡率的主要原因。
Pentostatin显著减少CD4和CD8细胞数目,与GVHD密切相关。Pentostatin也显著降低IgG水平并耗竭B细胞,可以在细胞水平上治疗GVHD,因而有望用于改善多种cGVHD症状。据发现,Pentostatin用于治疗aGVHD,在其1期临床试验中显效。Pentostatin的2期临床试验表明,在接受了多次治疗的cGVHD患者中(平均年龄33岁,前4种方案的中值),58例患者表现出55%的客观缓解率。
与其它治疗方法相比,Pentostatin具有持续作用,而且多数应答患者存活。Pentostatin价格较低而毒性适中。
参考文献:
[1] David A. Jacobsohn, Andrew L. Gilman, Alfred Rademaker et al. Evaluation of pentostatin in corticosteroid-refractory chronic graft-versus-host disease in children: a Pediatric Blood and Marrow Transplant Consortium study. BLOOD, 12 NOVEMBER 2009 _ VOLUME 114, NUMBER 20
[2] Stefan A. Klein1, Gesine Bug2, Sabine Mousset2 et al. Long term outcome of patients with steroid-refractory acute intestinal graft versus host disease after treatment with pentostatin. British Journal of Haematology, 154, 141–155
- 1.Boyd-Tressler AM, Lane GS, et al. "Up-regulated Ectonucleotidases in Fas-Associated Death Domain Protein- and Receptor-Interacting Protein Kinase 1-Deficient Jurkat Leukemia Cells Counteract Extracellular ATP/AMP Accumulation via Pannexin-1 Channels during Chemotherapeutic Drug-Induced Apoptosis." Mol Pharmacol. 2017 Jul;92(1):30-47. PMID:28461585
Physical Appearance | A solid |
Storage | Store at -20°C |
M.Wt | 268.27 |
Cas No. | 53910-25-1 |
Formula | C11H16N4O4 |
Synonyms | Deoxycoformycin |
Solubility | ≥26.8 mg/mL in H2O; insoluble in EtOH; ≥13.4 mg/mL in DMSO |
Chemical Name | (8R)-3-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-7,8-dihydro-4H-imidazo[4,5-d][1,3]diazepin-8-ol |
SDF | Download SDF |
Canonical SMILES | C1C(C(OC1N2C=NC3=C2NC=NCC3O)CO)O |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |
细胞实验 [1]: | |
细胞系 |
培养的单核细胞,从骨髓纯化的γδ+肿瘤细胞,4例肝脾γδ+ T细胞淋巴瘤患者外周血 |
溶解方法 |
该化合物在DMSO中的溶解度大于13.4 mg/mL。若获取更高浓度的溶液,可在37℃下孵育10分钟,随后在超声波浴中摇匀。-20℃以下可储存数月。 |
反应条件 |
10-100 μM,48 h |
应用 |
在γδ+肿瘤T细胞中,Pentostatin(10 μM)显示早期和选择性细胞毒性作用。体外暴露于pentostatin 48小时可以减少活性CD3+/γδ+肿瘤T细胞的绝对数。Pentostatin加dAdo处理5天后,显示出正常CD3+/αβ+ T细胞持续存在。在纯化的CD3+/CD4-/CD8-γδ+肿瘤细胞中,Pentostatin(10-100μM)加dAdo的组合以剂量依赖性方式抑制克隆生长和[3H]-thymidine掺入。 |
动物实验 [2]: | |
动物模型 |
感染锥虫的小鼠 |
给药剂量 |
2 mg/kg |
应用 |
在T.vanansi感染的小鼠中,Pentostatin (2 mg/kg)与cordycepin (2 mg/kg)组合使用100%有效,导致生化参数的水平有所增加,特别是肝脏酶的水平升高,伴随着肝脏和肾脏的组织病变。Pentostatin对感染组个体没有疗效 |
注意事项 |
由于实验环境的不同,实际溶解度可能与理论值略有不同,请测试室内所有化合物的溶解度。 |
References: [1]. Aldinucci D, Poletto D, Zagonel V, et al. In vitro and in vivo effects of 2′‐deoxycoformycin (Pentostatin) on tumour cells from human γδ+ T‐cell malignancies[J]. British journal of haematology, 2000, 110(1): 188-196. [2]. Dalla Rosa L, Da Silva A S, Gressler L T, et al. Cordycepin (3′-deoxyadenosine) pentostatin (deoxycoformycin) combination treatmaent of mice experimentally infected with Trypanosoma evansi[J]. Parasitology, 2013, 140(5): 663-671. |
质量控制和MSDS
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