上海金畔生物科技有限公司为生命科学和医药研发人员提供生物活性分子抑制剂、激动剂、特异性抑制剂、化合物库、重组蛋白，专注于信号通路和疾病研究领域。
PB28
PB28 是一种环己基哌嗪衍生物，是一种 Ki 值为 0.68 nM 的高亲和力和选择性 sigma 2 (σ2) 受体激动剂。PB28 也是一种 σ1 受体拮抗剂，Ki 为 0.38 nM，对其他受体的亲和力较小。PB28 抑制豚鼠膀胱和回肠中的电诱发抽搐，其 EC50 值分别为 2.62 μM 和 3.96 μM。PB28 可以调节 SARS-CoV-2-人之间的蛋白质与蛋白质的相互作用。PB28 可诱导非 caspase 依赖性的细胞凋亡 (apoptosis)，并具有抗肿瘤活性。
PB28 Chemical Structure
CAS No. : 172906-90-0
| 规格 |
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是否有货 |
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| 100 mg |
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询价 |
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| 250 mg |
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询价 |
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| 500 mg |
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询价 |
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* Please select Quantity before adding items.
PB28 的其他形式现货产品:
PB28 dihydrochloride
| 生物活性 |
PB28 is a cyclohexylpiperazine derivative and a high affinity and selective sigma 2 (σ2) receptor agonist with a Ki of 0.68 nM. PB28 is also a σ1 antagonist with a Ki of 0.38 nM. PB28 is less affinity for other receptors. PB28 inhibits electrically evoked twitch in guinea pig bladder and ileum with EC50 values of 2.62 μM and 3.96 μM, respectively. PB28 can modulate SARS-CoV-2-human protein-protein interaction. PB28 induces caspase-independent apoptosis and has antitumor activity[1][2][3][4][5].
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IC50 & Target |
Ki: 0.68 nM (σ2 receptor); 0.38 nM (σ1 receptor)[4]
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体外研究
(In Vitro) |
PB28 (15-25 nM; 24-48 hours; MCF7 and MCF7 ADR cells) treatment shows an accumulation in the G0-G1 phase for MCF7 and MCF7 ADR cells that are time and concentration independent[1].
PB28 has a higher σ2 receptor affinity expressed as Ki (0.28 nM and 0.17 nM in MCF7 and MCF7 ADR cells, respectively) than σ1 receptor affinity (13.0 nMand 10.0 nM, respectively)[1].
PB28 inhibits cell growth of MCF7 and MCF7 ADR cells with IC50s of 25 nM and 15 nM, respectively after 2-day treatment[1].
PB28 induces apoptosis through a caspase-independent pathway[1].
PB28 also reduces P-gp expression in a concentration- and time-dependent manner (approximately 60% in MCF7 and 90% in MCF7 ADR)[1].
PB28 displays antiproliferative and cytotoxic effects in both C6 rat glioma and SK-N-SH human neuroblastoma cell lines[1].
Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Cycle Analysis[1]
| Cell Line: |
MCF7 and MCF7 ADR cells |
| Concentration: |
25 nM and 15 nM |
| Incubation Time: |
24 hours, 48 hours |
| Result: |
Showed an accumulation in the G0-G1 phase for MCF7 and MCF7 ADR cells that were time and concentration independent. |
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体内研究
(In Vivo) |
PB28 (10.7 mg/mL; intraperitoneal injection; daily; for two weeks; C57BL/6 female mice) treatment inhibits tumor growth in Panc02 tumor burden mice. PB28 also conferres a survival advantage for mice[2].
Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.
| Animal Model: |
C57BL/6 female mice (10 weeks old) injected with Panc02 cells[2] |
| Dosage: |
10.7 mg/mL |
| Administration: |
Intraperitoneal injection; daily; for two weeks |
| Result: |
Inhibited tumor growth in Panc02 tumor burden mice. |
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| 运输条件 |
Room temperature in continental US; may vary elsewhere.
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| 储存方式 |
Please store the product under the recommended conditions in the Certificate of Analysis.
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| 参考文献 |
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[1]. Amalia Azzariti, et al. Cyclohexylpiperazine Derivative PB28, a sigma2 Agonist and sigma1 Antagonist Receptor, Inhibits Cell Growth, Modulates P-glycoprotein, and Synergizes With Anthracyclines in Breast Cancer. Mol Cancer Ther. 2006 Jul;5(7):1807-16.
[2]. Maria Laura Pati, et al. Sigma-2 Receptor Agonist Derivatives of 1-Cyclohexyl-4-[3-(5-methoxy-1,2,3,4-tetrahydronaphthalen-1-yl)propyl]piperazine (PB28) Induce Cell Death via Mitochondrial Superoxide Production and Caspase Activation in Pancreatic Cancer. BMC Cancer. 2017 Jan 13;17(1):51.
[3]. Nicola A Colabufo, et al. A New Method for Evaluating sigma(2) Ligand Activity in the Isolated Guinea-Pig Bladder. Naunyn Schmiedebergs Arch Pharmacol. 2003 Aug;368(2):106-12.
[4]. Francesco Berardi, et al. Exploring the Importance of Piperazine N-atoms for sigma(2) Receptor Affinity and Activity in a Series of Analogs of 1-cyclohexyl-4-[3-(5-methoxy-1,2,3,4-tetrahydronaphthalen-1-yl)propyl]piperazine (PB28). J Med Chem. 2009 Dec 10;52(23):7817-28.
[5]. David E Gordon, et al. A SARS-CoV-2-Human Protein-Protein Interaction Map Reveals Drug Targets and Potential Drug-Repurposing. bioRxiv. 2020 Mar 22;2020.03.22.002386.
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