1268524-70-4 Usage
Description
(S)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-triMethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate is a complex organic compound belonging to the triazolo-diazepine family. It is characterized by its unique molecular structure, which includes a thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine core with various substituents. (S)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-triMethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate exhibits potent biological activities and has potential applications in various fields due to its ability to modulate specific biological processes.
Uses
Used in Pharmaceutical Industry:
(S)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-triMethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate is used as a therapeutic agent for the treatment of various cancers. Its application is based on its ability to inhibit the BET bromodomain, a protein module involved in cell proliferation and transcriptional regulation. By targeting the BET bromodomain, this compound can suppress the growth of cancer cells and potentially treat multiple myeloma and acute myeloid leukemia.
Used in Research Applications:
In the field of research, (S)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-triMethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate is used as a tool compound to study the role of BET bromodomain proteins in various cellular processes. It is employed in flow cytometry assays, cell viability assays, and quantitative PCR assays to investigate the reversal of HIV-1 latency and the modulation of gene expression.
Used in Drug Delivery Systems:
To enhance the bioavailability and therapeutic outcomes of (S)-tert-butyl 2-(4-(4-chlorophenyl)-2,3,9-triMethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate, novel drug delivery systems have been developed. These systems utilize organic and metallic nanoparticles as carriers, aiming to improve the compound's delivery to target cells and tissues, thereby increasing its efficacy against cancer cells.
Biological Activity
(+)-JQ1 is a BET bromodomain inhibitor that acts on BRD4 (2) with C50 being 33nM. Except the BET family, (+)-JQ1 does not bind to the Bromodomain structure domain of other family.
In vitro
(+)-JQ1 enantiomer can bind to directly the Kac binding site of BET bromodomain structure domain. (+)-JQ1 (500nM) and chromatin competitively bind to BRD4, leading to NMC cell differentiation and growth standstill. The Ki67 staining decrease proves that? (+)-JQ1(500nM) weakens the rapid proliferation of NMC 797 and Per403 cell system.????? (+)-JQ1(500nM) acts on NMC 797 cells, effectively reducing the expression of BRD4 target gene. (+)-JQ1acts on NMC11060 cells inhibiting cell activity with IC50 being 4nM. (+)-JQ1 acts on MM cell system and strongly inhibits MYC expression. (+)-JQ1 inhibits the proliferation of KMS-34 and LR5 with IC50 being 68nM and 98nM respectively. After being treated by? (+)-JQ1(500nM), the proportion of MM.1S cell in S phase decrease and more cells stasis in the G0/G1 phase.
(+)-JQ1(500nM) dyed by β-galactosidase results in significant cell senescence. In the CD138+-derived MM sample treated by (+)-JQ1(800nM), the cell activity significantly decrease. (+)-JQ1 inhibits LP-1 cell growth with GI50 being 98nM. (+)-JQ1 (625nM) resulted in an increase in the proportion of LP-1 cells at G0/G1 phase. (+)-JQ1 (500nM) acts on LP-1 cells inhibiting MYC, BRD4 and CDK9 expression. (+)-JQ1 (1 μM) deals with latent infection of Jurkat T cells and activates HIV transcription. (+)-JQ1 (50μM) acts on Jurkat and HeLa cells, primarily stimulating Tat-dependent HIV transcription. (+)-JQ1 (5 μM) acts on J-Lat A2 cell inducing Brd4 dissociation, allowing Tat to recruit SEC to the HIV promoter and inducing Pol II CTD phosphorylation and viral transcription.
In vivo
(+)-JQ1(50mg /kg) treats mice with NMC797 transplanted tumors inhibiting tumor growth. (+)-JQ1(50mg/kg) erases NUT nuclear spots in mice with NMC797 transplanted tumors, consistent with competitive binding to nuclear chromatin. (+)-JQ1 (50mg/kg) treats NMC797 transplanted tumor, significantly inducing (31grade) keratin expression. (+)-JQ1(50mg/kg) treats mouse model carrying NMC transplanted tumor, promoting differentiation, tumor decline and prolonging life. (+)-JQ1(50mg/kg) treats MM.1S-luc+ cells through intravenous injection. Compared with animals in control group, the life of SCID beige mice carrying orthotopic transplanted tumors significantly extends. Through intraperitoneal injection (+)-JQ1(50mg/kg) can prolong the life of mice carrying Raji xenograft greatly.
Characteristic
(+)-JQ1 is more effective than (-)-JQ1.
Biochem/physiol Actions
(+)-JQ1 is a high affinity, potent and selective inhibitor of BET bromodomain proteins, including BRD2, BRD3, BRD4 and BRDT. (+)-JQ1 (also known as SGCBD01), the active enantiomer of (+/-)-JQ1, inhibits Brd4 (bromodomain-containing 4), which forms complexes with chromatin via two tandem bromodomains (BD1 and BD2) that bind to acetylated lysine residues in histones and Brd4 association with acetylated chromatin is believed to regulate the recruitment of elongation factor b and additional transcription factors to specific promoter regions. The nuclear protein in testis (NUT) gene is known to form fusions with Brd4 that create a potent oncogene, leading to rare, but highly lethal tumors referred to as NUT midline carcinomas (NMC). (+)-JQ1 inhibits recruitment and binding of Brd4 to TNFa and E-selectin promoter elements, and accelerates recovery time in FRAP (fluorescence recovery after photobleaching) assays using GFP-Brd4. Thus (+)-JQ1 is a useful tool to study the role of Brd4 in transcriptional initiation.For characterization details of (+)-JQ1, please visit the JQ-1 probe summary on the Structural Genomics Consortium (SGC) website.(-)-JQ1 is the negative control for the active enantiomer, (+)-JQ1. (-)-JQ1 is available from Sigma. To learn more about and purchase (-)-JQ1, click here.To learn about other SGC chemical probes for epigenetic targets, visit sigma.com/sgc
References
References/Citations:
Check Digit Verification of cas no
The CAS Registry Mumber 1268524-70-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,5,2 and 4 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1268524-70:
(9*1)+(8*2)+(7*6)+(6*8)+(5*5)+(4*2)+(3*4)+(2*7)+(1*0)=174
174 % 10 = 4
So 1268524-70-4 is a valid CAS Registry Number.
1268524-70-4Relevant articles and documents
Aptamer-PROTAC Conjugates (APCs) for Tumor-Specific Targeting in Breast Cancer
Dong, Guoqiang,Gao, Fei,He, Shipeng,Ma, Haoqian,Ma, Junhui,Sheng, Chunquan
, p. 23299 - 23305 (2021/08/13)
Development of proteolysis targeting chimeras (PROTACs) is emerging as a promising strategy for targeted protein degradation. However, the drug development using the heterobifunctional PROTAC molecules is generally limited by poor membrane permeability, low in vivo efficacy and indiscriminate distribution. Herein an aptamer-PROTAC conjugation approach was developed as a novel strategy to improve the tumor-specific targeting ability and in vivo antitumor potency of conventional PROTACs. As proof of concept, the first aptamer-PROTAC conjugate (APC) was designed by conjugating a BET-targeting PROTAC to the nucleic acid aptamer AS1411 (AS) via a cleavable linker. Compared with the unmodified BET PROTAC, the designed molecule (APR) showed improved tumor targeting ability in a MCF-7 xenograft model, leading to enhanced in vivo BET degradation and antitumor potency and decreased toxicity. Thus, the APC strategy may pave the way for the design of tumor-specific targeting PROTACs and have broad applications in the development of PROTAC-based drugs.
Potent Dual BET/HDAC Inhibitors for Efficient Treatment of Pancreatic Cancer
Dong, Guoqiang,He, Shipeng,Li, Yu,Sheng, Chunquan,Wang, Wei,Wu, Shanchao
, p. 3028 - 3032 (2020/02/11)
As one of the most aggressive and lethal human malignancies with extremely poor prognosis, there is an urgent demand of more effective therapy for the treatment of pancreatic cancer. Reported here is a new, effective therapeutic strategy and the design of small-molecule inhibitors that simultaneously target bromodomain and extra-terminal (BET) and histone deacetylase (HDAC), potentially serving as promising therapeutic agents for pancreatic cancer. A highly potent dual inhibitor (13 a) is identified to possess excellent and balanced activities against BRD4 BD1 (IC50=11 nm) and HDAC1 (IC50=21 nm). Notably, this compound shows higher in vitro and in vivo antitumor potency than the BET inhibitor (+)-JQ1 and the HDAC inhibitor vorinostat, either alone or and in combination, highlighting the advantages of BET/HDAC dual inhibitors for more effective treatment of pancreatic cancer.
COMPOUNDS AND METHODS FOR THE TARGETED DEGRADATION OF BROMODOMAIN-CONTAINING PROTEINS
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, (2017/03/21)
The present invention relates to bifunctional compounds, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the present invention is directed to compounds, which contain on one end a VHL ligand which binds to the ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. The present invention exhibits a broad range of pharmacological activities associated with compounds according to the present invention, consistent with the degradation/inhibition of targeted polypeptides.
