GNE-987
目录号 : GC60883
GNE-987是一种高活性的嵌合体BET降解剂。GNE-987显示皮摩尔细胞BRD4降解活性(在EOL-1AML细胞系中，DC50=0.03nM)。GNE-987与BRD4的BD1和BD2结合，具有低纳米摩尔亲和力(IC50分别为4.7和4.4nM)。它包含一个有效的BET结合剂/抑制剂、一个VHL结合片段和一个十个亚甲基间隔基部分。GNE-987用于PROTAC-Antibody偶联物(PAC)中。
Cas No.:2417371-71-0
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
GNE-987 is a highly active chimeric BET degrader. GNE-987 exhibits picomolar cell BRD4 degradation activity (DC50=0.03 nM for EOL-1 AML cell line). GNE-987 binds equipotently to the BD1 and BD2 bromodomains of BRD4 with low nanomolar affinities (IC50=4.7 and 4.4 nM, respectively). GNE-987 incorporates a potent BET binder/inhibitor, a VHL-binding fragment, and a ten methylene spacer moiety. GNE-987 can be used in PROTAC-Antibody Conjugate (PAC)[1].
GNE-987 inhibits EOL-1 and HL-60 cell viability with IC50s of 0.02 and 0.03 nM, respectively, and inhibits MYC expression with an IC50 of 0.03 nM[1]. GNE-987 (0.1-10 nM; 5 hours) degrades the BRD2 and BRD3 BET family proteins[1]. Western Blot Analysis[1] Cell Line: EOL-1 cells
[1]. Pillow TH, et al. Antibody Conjugation of a Chimeric BET Degrader Enables in vivo Activity. ChemMedChem. 2019 Oct 31.
| Cas No. | 2417371-71-0 | SDF | |
| Canonical SMILES | O=C([C@H](C[C@@H](O)C1)N1C([C@@H](NC(CCCCCCCCCCNC(C2=C(CS(=O)(C)=O)C=C(C(N(C3=NC=C(F)C=C3F)C4)=C2)C5=CN(C)C(C6=C5C4=CN6)=O)=O)=O)C(C)(C)C)=O)NCC7=CC=C(C(SC=N8)=C8C)C=C7 | ||
| 分子式 | C56H67F2N9O8S2 | 分子量 | 1096.31 |
| 溶解度 | DMSO: 150 mg/mL (136.82 mM) | 储存条件 | 4°C, stored under nitroge |
| 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 | 0.9122 mL | 4.5608 mL | 9.1215 mL |
| 5 mM | 0.1824 mL | 0.9122 mL | 1.8243 mL |
| 10 mM | 0.0912 mL | 0.4561 mL | 0.9122 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。
BRD4 Inhibitor GNE-987 Exerts Anticancer Effects by Targeting Super-Enhancer-Related Gene LYL1 in Acute Myeloid Leukemia
J Immunol Res 2022 Aug 1;2022:7912484.PMID:35958877DOI:10.1155/2022/7912484.
Background: AML (acute myeloid leukemia) is a common hematological malignancy in children with poor treatment effects and poor prognosis. Recent studies have shown that as a novel BRD4 (bromodomain containing 4) PROTACs (proteolysis targeting chimeras) degrader, GNE-987 can slow down the growth of various tumors and increase apoptosis, with promising clinical prospects. However, the function and molecular mechanism of GNE-987 in AML remain unclear. This study is aimed at investigating the therapeutic effect of GNE-987 on AML and its underlying mechanism. Methods: The association between BRD4 and AML was assessed by studying public databases. After GNE-987 was added to AML cells, cell proliferation slowed down, the cycle was disturbed, and apoptosis increased. Western blotting was used to detect BRD2 (bromodomain containing 2), BRD3 (bromodomain containing 3), BRD4, and PARP (poly ADP-ribose polymerase) proteins. The effect of GNE-987 on AML cells was analyzed in vivo. RNA-seq (RNA sequencing) and ChIP-seq (chromatin immunoprecipitation sequencing) validated the function and molecular pathways of GNE-987 in processing AML. Results: BRD4 expression was significantly elevated in pediatric AML samples compared with healthy donors. GNE-987 inhibited AML cell proliferation by inhibiting the cell cycle and inducing apoptosis. BRD2, BRD3, and BRD4 were consistent with decreased VHL (Von Hippel Lindau) expression in AML cells. In an AML xenograft model, GNE-987 significantly reduced the hepatosplenic infiltration of leukemia cells and increased the mouse survival time. Based on analysis of RNA-seq and ChIP-seq analyses, GNE-987 could target multiple SE- (super-enhancer-) related genes, including LYL1 (lymphoblastic leukemia 1), to inhibit AML. Conclusions: GNE-987 had strong antitumor activity in AML. GNE-987 could effectively inhibit the expression of SE-related oncogenes including LYL1 in AML. Our results suggested that GNE-987 had broad prospects in the treatment of AML.
Native Mass Spectrometry for the Study of PROTAC GNE-987-Containing Ternary Complexes
ChemMedChem 2021 Jul 20;16(14):2206-2210.PMID:33792163DOI:10.1002/cmdc.202100113.
PROteolysis TArgeting Chimeras (PROTACs) promote the degradation, rather than inhibition, of a drug target as a mechanism for therapeutic treatment. Bifunctional PROTAC molecules allow simultaneous binding of both the target protein and an E3-Ubiquitin ligase, bringing the two proteins into close spatial proximity to allow ubiquitinylation and degradation of the target protein via the cell's endogenous protein degradation pathway. We utilized native mass spectrometry (MS) to study the ternary complexes promoted by the previously reported PROTAC GNE-987 between Brd4 bromodomains 1 and 2, and Von Hippel Lindeau E3-Ubiquitin Ligase. Native MS at high resolution allowed us to measure ternary complex formation as a function of PROTAC concentration to provide a measure of complex affinity and stability, whilst simultaneously measuring other intermediate protein species. Native MS provides a high-throughput, low sample consumption, direct screening method to measure ternary complexes for PROTAC development.
Antibody Conjugation of a Chimeric BET Degrader Enables in vivo Activity
ChemMedChem 2020 Jan 7;15(1):17-25.PMID:31674143DOI:10.1002/cmdc.201900497.
The ability to selectively degrade proteins with bifunctional small molecules has the potential to fundamentally alter therapy in a variety of diseases. However, the relatively large size of these chimeric molecules often results in challenging physico-chemical properties (e. g., low aqueous solubility) and poor pharmacokinetics which may complicate their in vivo applications. We recently discovered an exquisitely potent chimeric BET degrader (GNE-987) which exhibited picomolar cell potencies but also demonstrated low in vivo exposures. In an effort to improve the pharmacokinetic properties of this molecule, we discovered the first degrader-antibody conjugate by attaching GNE-987 to an anti-CLL1 antibody via a novel linker. A single IV dose of the conjugate afforded sustained in vivo exposures that resulted in antigen-specific tumor regressions. Enhancement of a chimeric protein degrader with poor in vivo properties through antibody conjugation thereby expands the utility of directed protein degradation as both a biological tool and a therapeutic possibility.
Super-enhancer profiling identifies novel critical and targetable cancer survival gene LYL1 in pediatric acute myeloid leukemia
J Exp Clin Cancer Res 2022 Jul 16;41(1):225.PMID:35842703DOI:10.1186/s13046-022-02428-9.
Background: Acute myeloid leukemia (AML) is a myeloid neoplasm makes up 7.6% of hematopoietic malignancies. Super-enhancers (SEs) represent a special group of enhancers, which have been reported in multiple cell types. In this study, we explored super-enhancer profiling through ChIP-Seq analysis of AML samples and AML cell lines, followed by functional analysis. Methods: ChIP-seq analysis for H3K27ac was performed in 11 AML samples, 7 T-ALL samples, 8 B-ALL samples, and in NB4 cell line. Genes and pathways affected by GNE-987 treatment were identified by gene expression analysis using RNA-seq. One of the genes associated with super-enhancer and affected by GNE-987 treatment was LYL1 basic helix-loop-helix family member (LYL1). shRNA mediated gene interference was used to down-regulate the expression of LYL1 in AML cell lines, and knockdown efficiency was detected by RT-qPCR and western blotting. The effect of knockdown on the growth of AML cell lines was evaluated by CCK-8. Western blotting was used to detect PARP cleavage, and flow cytometry were used to determine the effect of knockdown on apoptosis of AML cells. Results: We identified a total of 200 genes which were commonly associated with super-enhancers in ≧10 AML samples, and were found enriched in regulation of transcription. Using the BRD4 inhibitor GNE-987, we assessed the dependence of AML cells on transcriptional activation for growth and found GNE-987 treatment predominantly inhibits cell growth in AML cells. Moreover, 20 candidate genes were selected by super-enhancer profile and gene expression profile and among which LYL1 was observed to promote cell growth and survival in human AML cells. Conclusions: In summary, we identified 200 common super-enhancer-associated genes in AML samples, and a series of those genes are cancer genes. We also found GNE-987 treatment downregulates the expression of super-enhancer-associated genes in AML cells, including the expression of LYL1. Further functional analysis indicated that LYL1 is required for AML cell growth and survival. These findings promote understanding of AML pathophysiology and elucidated an important role of LYL1 in AML progression.