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。
PNU-159682 是蒽环类新霉素的代谢产物，是一种 DNA 拓扑异构酶 II (Topo II) 抑制剂，具有出色的细胞毒性。在ADC 合成中，PNU-159682 是一种比阿霉素更有效和耐受性更高的 ADC 细胞毒素 (ADC cytotoxin)。PNU-159682 可用于 EDV 纳米细胞技术，克服耐药性。
| 生物活性 |
PNU-159682, a metabolite of the anthracycline Nemorubicin, is a highly potent DNA topoisomerase II inhibitor with excellent cytotoxicity[1]. PNU-159682 acts as a more potent and tolerated ADC cytotoxin than Doxorubicin for ADC synthesis[2]. PNU-159682 can be used in EDV-nanocell technology to overcome drug resistance[3].
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| IC50 & Target[1][2] |
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Daunorubicins/Doxorubicins
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Topoisomerase I
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体外研究
(In Vitro) |
PNU-159682 (0-500 nM; exposed to the compounds for 1 hour and then cultured in compound-free medium for 72 hours) has cytotoxic effects on human tumor cell lines in a sulforhodamine B assay. The IC70 values are 0.577 nM, 0.39 nM, 0.128 nM, and 0.081 nM, 0.086 nM and 0.075 nM for HT-29, A2780, DU145, EM-2, Jurkat and CEM cells, respectively[1]. It against human tumor cell lines with IC70 in the ranging 68 nM-578 nM and 181 nM-1717 nM towards MMDX and doxorubicin, respectively[1]. PNU-159682 is more potent than MMAE on NHL cell lines. In a cell viability assay, PNU-159682 is against BJAB.Luc, Granta-519, SuDHL4.Luc, and WSU-DLCL2 with IC50 values of 0.10 nM, 0.020 nM, 0.055 nM, and 0.1 nM, respectively. While MMAE is against BJAB.Luc, Granta-519, SuDHL4.Luc, and WSU-DLCL2 with IC50 values of 0.54 nM, 0.25 nM, 1.19 nM and 0.25 nM, respectively[2].PNU-159682 is thousands of times more cytotoxic than doxorubicin and can be used to develop a new class of ADCs. PNU159682 to anti-CD22 antibody (anti-CD22-NMS249) exhibits strong anti-tumor effects in vitro. Anti-CD22-NMS249 (PNU159682 to anti-CD22 antibody) is active in in vitro viability assays of NHL cell lines and is 2 to 20 fold more potent than pinatuzumab vedotin, the ADC anti-CD22-NMS249 is against BJAB.Luc, Granta-519, SuDHL4.Luc, and WSU-DLCL2 with IC50 values of 0.058 nM, 0.030 nM, 0.0221 nM, and 0.01 nM, respectively[3].PNU-159682 (100 μM) weakly inhibits topoisomerase II unknotting activity. PNU-159682 shows cytotoxic effect on CAIX-expressing SKRC-52 cells with IC50 of 25 nM[4].
上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Viability Assay[2]
| Cell Line: |
HT-29, A2780, DU145, EM-2, Jurkat and CEM cells |
| Concentration: |
0-500 nM |
| Incubation Time: |
Exposed to the PNU-159682 for 1 hour and then cultured in compound-free medium for 72 hours |
| Result: |
Was 2,360- to 790-fold and 6,420- to 2,100-fold more potent than MMDX and doxorubicin, respectively. Exhibited IC70 values of PNU-159682 are in the subnanomolar range (0.07-0.58 nM) and noticeably lower than that recorded for both MMDX and doxorubicin. |
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体内研究
(In Vivo) |
PNU-159682 (single-dose; i.v.15 μg/kg) is a maximum tolerated dose in murine L1210 leukemia model. PNU-159682 shows an improved antitumor activity in vivo. The antitumor effect of PNU-159682 (increase in life span=29%) is comparable to that afforded by 90 μg/kg MMDX (increase in life=36%)[1].PNU-159682 (i.v. 4 μg/kg; q7dx3; 40 days) has a therapeutic response in MX-1 human mammary carcinoma mice. What’s more, from day 39, four out of seven mice receiving PNU-159682 exhibits complete tumor regression[1].PNU-159682 is more cytotoxic than doxorubicin and can be used to develop a new class of ADCs. PNU159682 to anti-CD22 antibody (anti-CD22-NMS249) exhibits strong anti-tumor effects in vivo. ADC dose (anti-CD22-NMS249; 50 µg/m2 conjugated PNU-159682) is well tolerated in mice and results in less than 10% weight loss[2].In the BJAB.Luc model the efficacy of antiCD22-NMS249 (single dose; 2 mg/kg) is similar to anti-CD22-vc-MMAE. At 2 mg/kg dosage, antiCD22-NMS249 gives complete remission of the tumors (NMS249: 110-134%TGI vs. vc-MMAE: 114-143%TGI). Additionally, a single dose of antiCD22-NMS249 at 2 mg/kg results in tumor stasis for three weeks[1].
上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.
| Animal Model: |
Four- to six-week-old female CD-1 athymic nude mice with MX-1 tumor fragments[1] |
| Dosage: |
4 μg/kg |
| Administration: |
Intravenous injection; q7dx3; 40 days |
| Result: |
Exhibited anti-cancer effects in MX-1 human mammary carcinoma xenografts to PNU-159682. |
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| 分子量 |
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| Formula |
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| CAS 号 |
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| 运输条件 |
Room temperature in continental US; may vary elsewhere.
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| 储存方式 |
4°C, stored under nitrogen
*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
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| 溶解性数据 |
In Vitro:
DMSO : 100 mg/mL (155.86 mM; Need ultrasonic)
配制储备液
| 浓度 溶剂体积 质量 |
1 mg |
5 mg |
10 mg |
| 1 mM |
1.5586 mL |
7.7928 mL |
15.5855 mL |
| 5 mM |
0.3117 mL |
1.5586 mL |
3.1171 mL |
| 10 mM |
0.1559 mL |
0.7793 mL |
1.5586 mL |
*
请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (stored under nitrogen)。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。
In Vivo:
请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：
——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶
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| 参考文献 |
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[1]. Quintieri L, et al. Formation and antitumor activity of PNU-159682, a major metabolite of nemorubicin in human liver microsomes. Clin Cancer Res. 2005 Feb 15;11(4):1608-17.
[2]. Cazzamalli S, et al. Acetazolamide Serves as Selective Delivery Vehicle for Dipeptide-Linked Drugs to Renal Cell Carcinoma. Mol Cancer Ther. 2016 Dec;15(12):2926-2935.
[3]. Pengxuan Zhao, et al. Recent advances of antibody drug conjugates for clinical applications. Acta Pharm Sin B. 2020 Sep;10(9):1589-1600.
[4]. Joanne Lundy, Interim data: Phase I/IIa study of EGFR-targeted EDV nanocells carrying cytotoxic drug PNU-159682 (E-EDV-D682) with immunomodulatory adjuvant EDVs carrying α-galactosyl ceramide (EDV-GC) in patients with recurrent, metastatic pancreatic cancer. GASTROINTESTINAL CANCER—GASTROESOPHAGEAL, PANCREATIC, AND HEPATOBILIARY
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