ROC-325
目录号 : GC32901
An autophagy inhibitor
Cas No.:1859141-26-6
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Kinase experiment: | Renal cancer cells are incubated with ROC-325 for 24 hours. Cells are harvested and then lysed. Approximately 50 μg of total cellular protein from each sample are subjected to SDS-PAGE, proteins are transferred to nitrocellulose membranes, and the membranes are blocked with 5% nonfat milk in a Tris-buffered saline solution containing 0.1% Tween-20 for 1 hour. The blots are then probed overnight at 4°C with primary antibodies, washed, and probed with species-specific secondary antibodies coupled to horseradish peroxidase. Immunoreactive material is detected by enhanced chemiluminescence[1]. |
Cell experiment: | Cell viability is estimated by the MTT assay. Cells are seeded into 96-well microcultureplates at 10,000 cells per well and allowed to attach for 24 hours. Cells are then treated with ROC-325 for 72 hours. Following ROC-325 treatment, MTT is added and formazan absorbance is quantified using a microplate reader. The estimated cell viability under each experimental condition is calculated by normalizing the respective formazan optical density to the density of control cells. Proapoptotic effects following in vitro ROC-325 exposure are quantified by propidium iodide (PI) staining and fluorescence-activated cell sorting (FACS) analysis of sub-G0/G1 DNA content and by measurement of active caspase-3 by flow cytometry using a commercial kit[1]. |
Animal experiment: | 786-0 renal cancer cells (5×106) are suspended in a mixture of HBSS and Matrigel and subcutaneously implanted into female nude mice. Tumor-bearing animals from each cell line xenograft are randomized into treatment groups. Mice are treated with vehicle (water), ROC-325 (25, 40, and 50 mg/kg PO) QD×5 for 6 weeks. Mice are monitored daily and tumor volumes are measured twice weekly. At study completion, tumors from representative animals are excised from each group, formalin-fixed, and paraffin-embedded for immunohistochemical analysis[1]. |
References: [1]. Carew JS, et al. Disruption of Autophagic Degradation with ROC-325 Antagonizes Renal Cell Carcinoma Pathogenesis. Clin Cancer Res. 2017 Jun 1;23(11):2869-2879. | |
ROC-325 is an autophagy inhibitor.1 It inhibits autophagic flux and induces lysosomal deacidification and apoptosis in 786-O renal cell carcinoma cells when used at a concentration of 5 ?M. ROC-325 decreases viability in a panel of 12 cancer cell lines, including renal, lung, pancreatic, and prostate cancer cells, with IC50 values ranging from 4.9 to 11 ?M. It reduces tumor growth in a 786-O mouse xenograft model when administered at a dose of 50 mg/kg. ROC-325 also decreases the cytopathic effect of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in infected Vero E6 cells (EC50 = 3.28 ?M).2
1.Carew, J.S., Espitia, C.M., Zhao, W., et al.Disruption of autophagic degradation with ROC-325 antagonizes renal cell carcinoma pathogenesisClin. Cancer Res.23(11)2869-2879(2017) 2.Gorshkov, K., Chen, C.Z., Bostwick, R., et al.The SARS-CoV-2 cytopathic effect is blocked by lysosome alkalizing small moleculesACS Infect. Dis.(2020)
| Cas No. | 1859141-26-6 | SDF | |
| Canonical SMILES | O=C1C2=C(SC3=C1C=CC=C3)C(C)=CC=C2NCCN(CCNC4=CC=NC5=CC(Cl)=CC=C45)C | ||
| 分子式 | C28H27ClN4OS | 分子量 | 503.06 |
| 溶解度 | DMSO : 32 mg/mL (63.61 mM) | 储存条件 | Store at -20°C |
| General tips | 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 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.9878 mL | 9.9392 mL | 19.8783 mL |
| 5 mM | 0.3976 mL | 1.9878 mL | 3.9757 mL |
| 10 mM | 0.1988 mL | 0.9939 mL | 1.9878 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
[The Inhibiting Effect of Autophagy Inhibitor ROC-325 on Multiple Myeloma]
Zhongguo Shi Yan Xue Ye Xue Za Zhi 2021 Jun;29(3):797-804.PMID:34105475DOI:10.19746/j.cnki.issn.1009-2137.2021.03.023.
Objective: To investigate the effects of autophagy inhibitor ROC-325 and its combination with bortezomib on the proliferation, apoptosis and autophagy of multiple myeloma cell lines. Methods: Multiple myeloma cells were treated with ROC-325 at different concentration. The cell proliferation was detected by CCK-8. Apoptosis was determined by Caspase-3/7 and Caspase-9 activity assays. Autophagy was detected by monodansylcadaverine staining. The apoptosis-related proteins (PARP and Caspase-3) and autophagy-related proteins (P62, Beclin-1, and LC3A/B) were analyzed by Western blot. The combined effect with bortezomib on bortezomib-resistant cell line was detected by CCK-8. Results: ROC-325 inhibited the proliferation of RPMI 8226, RPMI 8226-BTZ100, U266 and IM9 cells in a dose-dependent manner (r=-0.8275, r=-0.9079, r=-0.9422, r=-0.9305), the 72 h IC50 values were 2.795, 4.020, 5.432 and 4.755 μmol/L, respectively. The activity assays of Caspase-3/7 and Caspase-9 showed that their relative activity was increased gradually in proportion to the drug concentration with the statistically significant difference (r=0.9648, r=0.9377, r=0.9318; r=0.9087, r=0.9431, r=0.8914). MDC staining results showed that the number of autophagic vacuoles increased with the rise of ROC-325 concentration (r=0.9565, r=0.9373, r=0.9233). ROC-325 could increase the expression of apoptosis-related proteins (PARP and Caspase-3) and autophagy-related proteins (P62 and LC3-Ⅱ/LC3-Ⅰ), but decrease the expression of Beclin-1 detected by Western blot. The CCK-8 assay showed that ROC-325 combined with bortezomib had synergistic effect on the inhibition of drug resistant cell line RPMI 8226-BTZ100. Conclusion: ROC-325 can inhibit the proliferation, induce the apoptosis of myeloma cells through the mitochondrial pathway, inhibit the autophagy of myeloma cells by affecting the fusion of autophagosomes and lysosomes, and overcome bortezomib resistance by the combination of ROC-325 with bortezomib.
The Novel Lysosomal Autophagy Inhibitor (ROC-325) Ameliorates Experimental Pulmonary Hypertension
Hypertension 2023 Jan;80(1):70-83.PMID:36345832DOI:10.1161/HYPERTENSIONAHA.122.19397.
Background: Autophagy plays an important role in the pathogenesis of pulmonary hypertension (PH). ROC-325 is a novel small molecule lysosomal autophagy inhibitor that has more potent anticancer activity than the antimalarial drug hydroxychloroquine, the latter has been prevalently used to inhibit autophagy. Here, we sought to determine the therapeutic benefit and mechanism of action of ROC-325 in experimental PH models. Methods and results: Hemodynamics, echocardiography, and histology measurement showed that ROC-325 treatment prevented the development of PH, right ventricular hypertrophy, fibrosis, dysfunction, and vascular remodeling after monocrotaline and Sugen5416/hypoxia administration. ROC-325 attenuated high K+ or alveolar hypoxia-induced pulmonary vasoconstriction and enhanced endothelial-dependent relaxation in isolated pulmonary artery rings. ROC-325 treatment inhibited autophagy and enhanced endothelial nitric oxide synthase activity in lung tissues of monocrotaline-PH rats. In cultured human and rat pulmonary arterial smooth muscle cell and pulmonary arterial endothelial cell under hypoxia exposure, ROC-325 increased LC3B (light chain 3 beta) and p62 accumulation, endothelial cell nitric oxide production via phosphorylation of endothelial nitric oxide synthase (Ser1177) and dephosphorylation of endothelial nitric oxide synthase (Thr495) as well as decreased HIF (hypoxia-inducible factor)-1α and HIF-2α stabilization. Conclusions: These data indicate that ROC-325 is a promising novel agent for the treatment of PH that inhibits autophagy, downregulates HIF levels, and increases nitric oxide production.
Disruption of Autophagic Degradation with ROC-325 Antagonizes Renal Cell Carcinoma Pathogenesis
Clin Cancer Res 2017 Jun 1;23(11):2869-2879.PMID:27881580DOI:10.1158/1078-0432.CCR-16-1742.
Purpose: Although autophagy plays important roles in malignant pathogenesis and drug resistance, there are few clinical agents that disrupt this pathway, and the potential therapeutic benefit of autophagy inhibition remains undetermined. We used medicinal chemistry approaches to generate a series of novel agents that inhibit autophagic degradation.Experimental Design: ROC-325 was selected as a lead compound for further evaluation. Comprehensive in vitro and in vivo studies were conducted to evaluate the selectivity, tolerability, and efficacy of ROC-325 in preclinical models of renal cell carcinoma (RCC) with HCQ serving as a comparator. Markers of autophagy inhibition and cell death were evaluated in tumor specimens.Results: ROC-325 exhibited superior in vitro anticancer effects compared with the existing autophagy inhibitor hydroxychloroquine (HCQ) in 12 different cancer cell lines with diverse genetic backgrounds. Focused studies of the mechanism of action and efficacy of ROC-325 in RCC cells showed that drug treatment induced hallmark characteristics of autophagy inhibition, including accumulation of autophagosomes with undegraded cargo, lysosomal deacidification, p62 stabilization, and disruption of autophagic flux. Subsequent experiments showed that ROC-325 antagonized RCC growth and survival in an ATG5/7-dependent manner, induced apoptosis, and exhibited favorable selectivity. Oral administration of ROC-325 to mice bearing 786-0 RCC xenografts was well tolerated, was significantly more effective at inhibiting tumor progression than HCQ, and inhibited autophagy in vivoConclusions: Our findings demonstrate that ROC-325 has superior preclinical anticancer activity compared with HCQ and support the clinical investigation of its safety and preliminary efficacy in patients with RCC and other autophagy-dependent malignancies. Clin Cancer Res; 23(11); 2869-79. ©2016 AACR.
Drain the lysosome: Development of the novel orally available autophagy inhibitor ROC-325
Autophagy 2017 Apr 3;13(4):765-766.PMID:28118053DOI:10.1080/15548627.2017.1280222.
Although macroautophagy/autophagy is a key contributor to malignant pathogenesis and therapeutic resistance, there are few FDA-approved agents that significantly affect this pathway. We used medicinal chemistry strategies to develop ROC-325, an orally available novel inhibitor of lysosomal-mediated autophagy. Detailed in vitro and in vivo studies in preclinical models of renal cell carcinoma demonstrated that ROC-325 triggered the hallmark features of lysosomal autophagy inhibition, was very well tolerated, and exhibited significant superiority with respect to autophagy inhibition and anticancer activity over hydroxychloroquine. Our findings support the clinical investigation of the safety and preliminary efficacy of ROC-325 in patients with autophagy-dependent malignancies and other disorders where aberrant autophagy contributes to disease pathogenesis.
ASCL2 Maintains Stemness Phenotype through ATG9B and Sensitizes Gliomas to Autophagy Inhibitor
Adv Sci (Weinh) 2022 Sep;9(27):e2105938.PMID:35882624DOI:10.1002/advs.202105938.
Autophagy is a highly conserved process that is vital for tumor progression and treatment response. Although autophagy is proposed to maintain the stemness phenotype in adult diffuse glioma, the molecular basis of the link between autophagy and stemness is poorly understood, which makes it impossible to effectively screen for the population that will benefit from autophagy-targeted treatment. Here, ATG9B as essential for self-renewal capacity and tumor-propagation potential is identified. Notably, ASCL2 transcriptionally regulates the expression of ATG9B to maintain stemness properties. The ASCL2-ATG9B axis is an independent prognostic biomarker and indicator of autophagic activity. Furthermore, the highly effective blood-brain barrier (BBB)-permeable autophagy inhibitor ROC-325, which can significantly inhibit the progression of ASCL2-ATG9B axisHigh gliomas as a single agent is investigated. These data demonstrate that a new ASCL2-ATG9B signaling axis is crucial for maintaining the stemness phenotype and tumor progression, revealing a potential autophagy inhibition strategy for adult diffuse gliomas.