In the context of the digital economy,the volume of data is growing exponentially,the types of data are becoming more diverse,and its value is increasing,often providing critical support for decision-making by enterpr...In the context of the digital economy,the volume of data is growing exponentially,the types of data are becoming more diverse,and its value is increasing,often providing critical support for decision-making by enterprises and government institutions.Effective data governance is a crucial tool for maximizing data value and mitigating data risks.This article examines the application of data governance models in the digital economy,aiming to offer technical insights and guidance for data-driven enterprises and governments in China.By elevating their data governance standards in the new era,this approach will comprehensively enhance their ability to harness digital value and ensure security in the digital economy,ultimately driving the continued growth of both the digital economy and society.展开更多
Targeting bromodomain-containing protein 4(BRD4) has been proved to be an effective strategy for cancer therapy.To date,numerous BRD4 inhibitors and degraders have been identified,some of which have advanced into clin...Targeting bromodomain-containing protein 4(BRD4) has been proved to be an effective strategy for cancer therapy.To date,numerous BRD4 inhibitors and degraders have been identified,some of which have advanced into clinical trials.In this work,a focused library of new [1,2,4]triazolo [1,5-a]pyrimidine derivatives were discovered to be able to inhibit BRD4.WS-722 inactivated BRD4(BD1/BD2),BRD2(BD1/BD2) and BRD3(BD1/BD2) broadly with the IC_(50) values less than 5 μmol/L.Besides,WS-722 inhibited growth of THP-1 cells with an IC_(50) value of 3.86 μmol/L.Like(+)-JQ1,WS-722 inhibited BRD4 in a reversible manner and enhanced protein stability.Docking studies showed that WS-722 occupied the central acetyl-lysine(Kac) binding cavity and formed a hydrogen bond with Asn140.In THP-1 cells,WS-722 showed target engagement to BRD4.Cellular effects of WS-722 on THP-1 cells were also examined,showing that WS-722 could block c-MYC expression,induce G0/G1 phase arrest and p21 up-regulation,and promote differentiation of THP-1 cells.BRD4 inhibition by WS-722 resulted in cell apoptosis and upregulated expression of cleaved caspased-3/7 and PARP in THP-1 cell lines.The [1,2,4]triazolo[1,5-a]pyrimidine is a new template for the development of new BRD4 inhibitors.展开更多
The first HFIP-promoted catalyst-free cascade reactions for the synthesis of biologically relevant 3,3-di(indolyl)indolin-2-ones(27 examples,up to 98% yield) from readily available indoles and isatin derivatives are d...The first HFIP-promoted catalyst-free cascade reactions for the synthesis of biologically relevant 3,3-di(indolyl)indolin-2-ones(27 examples,up to 98% yield) from readily available indoles and isatin derivatives are described.This protocol shows well tolerance of different functional groups and features mild reaction conditions such as short reaction time(~1 h),no usage of catalyst,easy operation and product isolation.Of particular intere st is the formation of two C-C bonds and one all-carbon quaternary center.This protocol could serve as an alternative strategy to synthesize biologically important 3,3-di(indolyl)indolin-2-ones for biological testing.展开更多
文摘In the context of the digital economy,the volume of data is growing exponentially,the types of data are becoming more diverse,and its value is increasing,often providing critical support for decision-making by enterprises and government institutions.Effective data governance is a crucial tool for maximizing data value and mitigating data risks.This article examines the application of data governance models in the digital economy,aiming to offer technical insights and guidance for data-driven enterprises and governments in China.By elevating their data governance standards in the new era,this approach will comprehensively enhance their ability to harness digital value and ensure security in the digital economy,ultimately driving the continued growth of both the digital economy and society.
基金supported by the National Natural Science Foundation of China(Nos.81703326,81773562,81602961 and 81430085)Scientific Program of Henan Province(No.182102310123)China Postdoctoral Science Foundation(Nos.2018M630840 and 2019T120641)。
文摘Targeting bromodomain-containing protein 4(BRD4) has been proved to be an effective strategy for cancer therapy.To date,numerous BRD4 inhibitors and degraders have been identified,some of which have advanced into clinical trials.In this work,a focused library of new [1,2,4]triazolo [1,5-a]pyrimidine derivatives were discovered to be able to inhibit BRD4.WS-722 inactivated BRD4(BD1/BD2),BRD2(BD1/BD2) and BRD3(BD1/BD2) broadly with the IC_(50) values less than 5 μmol/L.Besides,WS-722 inhibited growth of THP-1 cells with an IC_(50) value of 3.86 μmol/L.Like(+)-JQ1,WS-722 inhibited BRD4 in a reversible manner and enhanced protein stability.Docking studies showed that WS-722 occupied the central acetyl-lysine(Kac) binding cavity and formed a hydrogen bond with Asn140.In THP-1 cells,WS-722 showed target engagement to BRD4.Cellular effects of WS-722 on THP-1 cells were also examined,showing that WS-722 could block c-MYC expression,induce G0/G1 phase arrest and p21 up-regulation,and promote differentiation of THP-1 cells.BRD4 inhibition by WS-722 resulted in cell apoptosis and upregulated expression of cleaved caspased-3/7 and PARP in THP-1 cell lines.The [1,2,4]triazolo[1,5-a]pyrimidine is a new template for the development of new BRD4 inhibitors.
基金supported by the National Natural Science Foundation of China(Nos.81773562,81703326 and 81973177)The Open Project of State Key Laboratory of Natural Medicines(No.SKLNMKF202005)China Postdoctoral Science Foundation(Nos.2018M630840 and 2019T120641)。
文摘The first HFIP-promoted catalyst-free cascade reactions for the synthesis of biologically relevant 3,3-di(indolyl)indolin-2-ones(27 examples,up to 98% yield) from readily available indoles and isatin derivatives are described.This protocol shows well tolerance of different functional groups and features mild reaction conditions such as short reaction time(~1 h),no usage of catalyst,easy operation and product isolation.Of particular intere st is the formation of two C-C bonds and one all-carbon quaternary center.This protocol could serve as an alternative strategy to synthesize biologically important 3,3-di(indolyl)indolin-2-ones for biological testing.