Clustered regularly interspaced short palindromic repeats(CRISPR)-Cas9 screening technology is redefining the landscape of drug discovery and therapeutic target identification by providing a precise and scalable platf...Clustered regularly interspaced short palindromic repeats(CRISPR)-Cas9 screening technology is redefining the landscape of drug discovery and therapeutic target identification by providing a precise and scalable platform for functional genomics.The development of extensive single-guide RNA(sgRNA)libraries enables high-throughput screening(HTS)that systematically investigates gene-drug interactions across the genome.This powerful approach has found broad applications in identifying drug targets for various diseases,including cancer,infectious diseases,metabolic disorders,and neurodegenerative conditions,playing a crucial role in elucidating drug mechanisms and facilitating drug screening.Despite challenges like off-target effects,data complexity,and ethical or regulatory concerns,ongoing advancements in CRISPR technology and bioinformatics are steadily overcoming these limitations.Additionally,by integrating with organoid models,artificial intelligence(AI),and big data technologies,CRISPR screening expands the scale,intelligence,and automation of drug discovery.This integration boosts data analysis efficiency and offers robust support for uncovering new therapeutic targets and mechanisms.This review outlines the fundamental principles and applications of CRISPR screening technology,delves into specific case studies and technical challenges,and highlights its expanding role in drug discovery and target identification.It also examines the potential for clinical translation and addresses the associated ethical and regulatory considerations.展开更多
Aptamer therapeutics represent a class of target-based therapies that leverage their high specificity and affinity for diverse molecular targets.As single-stranded DNA or RNA oligonucleotides,aptamers offer advantages...Aptamer therapeutics represent a class of target-based therapies that leverage their high specificity and affinity for diverse molecular targets.As single-stranded DNA or RNA oligonucleotides,aptamers offer advantages in therapeutic applications.A critical aspect of aptamer drug development is the selection process,which has seen significant advancements through various in vitro selection methods,including Systematic Evolution of Ligands by Exponential Enrichment and its emerging variations.Recent progress has also introduced functional screening strategies that directly identify pharmacologically active aptamers,accelerating drug discovery.The applications of aptamers in disease treatment are expanding across oncology,neurodegenerative disorders,infectious diseases and other diseases.Aptamers exhibit versatile mechanisms of action,including blocking interactions,recruiting protein machinery,and inhibiting target functions.By addressing key limitations and presenting future directions,this review provides a comprehensive perspective on the recent evolving landscape of aptamer technology and its transformative potential in modern medicine.展开更多
In drug discovery,it is extremely important to identify highly potent leads with desirable drug-like profiles.Almost all the marketed phosphodiesterase 5(PDE5)inhibitors such as sildenafil,vardenafil,and tadalafil hav...In drug discovery,it is extremely important to identify highly potent leads with desirable drug-like profiles.Almost all the marketed phosphodiesterase 5(PDE5)inhibitors such as sildenafil,vardenafil,and tadalafil have poor selectivity over PDE6 or PDE11 and leading to several side effects.Herein,a metabolites-based scaffold hopping strategy was performed to discover selective PDE5 inhibitors with remarkable metabolic stability.The Eu(OTf)3-catalyzed Mannich-type reaction followed by L-selectride catalyzed reduction was used to prepare chiral 2,3,3a,4,5,6-hexahydro-1H-benzo[b]pyrido[2,3,4-de][1,6]naphthyridines as novel PDE5 inhibitors with high enantioselectivity(>99%ee and>30:1 dr).Lead L9exhibited a half maximal inhibitory concentration(IC50)of 1.03 nmol/L with higher selectivity(>898-fold)over PDE6 or PDE11 than sildenafil and tadalafil,implying the potential relief from side effects.Especially,the co-crystal binding pattern of L9 with PDE5 is revealed to be different from that of sildenafil,which possibly explain the former’s high selectivity.And oral administration of L9·HCl(5.0 mg/kg)exhibited better therapeutic effects than pirfenidone(150 mg/kg)in a bleomycin-induced idiopathic pulmonary fibrosis(IPF)rat model,highlighting the potential of L9·HCl for the treatment of IPF.展开更多
The recent Nobel prizes in Physics to Giorgio Parisi,Geoffrey Hinton,and John Hopfield,officially proclaimed a deep epistemological change:the unity of different sciences is no more considered to stem from the fact t...The recent Nobel prizes in Physics to Giorgio Parisi,Geoffrey Hinton,and John Hopfield,officially proclaimed a deep epistemological change:the unity of different sciences is no more considered to stem from the fact that‘any entity is made by the same basic bricks’but on the recognition than‘any entity can be represented as a set of mutually interacting parts’.That is to say that any system[1]can be formalized as a‘network of interactions among its elements’.展开更多
Hyperactivation of DNA repairing pathway is highly associated with the chemosensitivity and chemoresistance of cancer cells.In this manuscript,guided by cascaded one strain many compounds-global natural products socia...Hyperactivation of DNA repairing pathway is highly associated with the chemosensitivity and chemoresistance of cancer cells.In this manuscript,guided by cascaded one strain many compounds-global natural products social molecular networking(OSMAC-GNPS)strategy,a pair of epimeric environmental-induced metabolites were isolated from Aspergillus sp.EGF 15-0-3.Structurally,sterpiperazines A(1)and B(2)represent the first steroid-based indole alkaloids with unprecedented backbones.Biologically,compound 1 could be identified as a novel tyrosyl-DNA phosphodiesterase 1(Tdp1)inhibitor with a unique mechanism distinct from the reported modulators,and was able to significantly enhance the sensitivity of NCI-H460 cells to the clinic chemotherapeutic drug through inhibiting the DNA repairment and enhanced the DNA damage of cancer cells.展开更多
Affinity selection mass spectrometry(AS-MS)has emerged as a powerful label-free technique for identifying and characterizing ligand-target interactions.This review explores the diverse applications of AS-MS in drug di...Affinity selection mass spectrometry(AS-MS)has emerged as a powerful label-free technique for identifying and characterizing ligand-target interactions.This review explores the diverse applications of AS-MS in drug discovery,including its role in selective screening,binding site characterization,and quantitative affinity determination.We discuss the use of AS-MS for determining equilibrium dissociation constants(KD)and competitive binding parameters(affinity competition experiment 50%(ACE50)),highlighting its ability to rank ligand affinities efficiently.The review also examines AS-MS applications in fragment-based drug discovery(FBDD),screening for molecular glues,and investigating interactions with membrane proteins.Moreover,we address key technical challenges,including competitive binding effects,protein stability,and ligand dissociation kinetics,along with recent advancements in automation and artificial intelligence(AI)integration.Rather than providing a comprehensive literature review,this work aims to broaden the applicability of AS-MS assays and encourage researchers to explore its use in underutilized contexts.By providing rapid and high-sensitivity affinity measurements,AS-MS continues to expand its role in drug discovery and structural biology,complementing conventional biophysical techniques.展开更多
基金supported by National Natural Science Foundation of China(Grant No.:82071349)Sichuan Science and Technology Program,China(Grant No.:2025ZNSFSC0703)+3 种基金Young Scientists Fund of the National Natural Science Foundation of China(Grant No.:82204513)Natural Science Foundation of Sichuan Province,China(Grant No.:2023NSFSC1673)Innovation Guidance Foundation of the Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province,China(Grant No.:SCU2023D005)Scientific Research Staring Foundation of Sichuan University,China(Grant No.:YJ202165).
摘要Clustered regularly interspaced short palindromic repeats(CRISPR)-Cas9 screening technology is redefining the landscape of drug discovery and therapeutic target identification by providing a precise and scalable platform for functional genomics.The development of extensive single-guide RNA(sgRNA)libraries enables high-throughput screening(HTS)that systematically investigates gene-drug interactions across the genome.This powerful approach has found broad applications in identifying drug targets for various diseases,including cancer,infectious diseases,metabolic disorders,and neurodegenerative conditions,playing a crucial role in elucidating drug mechanisms and facilitating drug screening.Despite challenges like off-target effects,data complexity,and ethical or regulatory concerns,ongoing advancements in CRISPR technology and bioinformatics are steadily overcoming these limitations.Additionally,by integrating with organoid models,artificial intelligence(AI),and big data technologies,CRISPR screening expands the scale,intelligence,and automation of drug discovery.This integration boosts data analysis efficiency and offers robust support for uncovering new therapeutic targets and mechanisms.This review outlines the fundamental principles and applications of CRISPR screening technology,delves into specific case studies and technical challenges,and highlights its expanding role in drug discovery and target identification.It also examines the potential for clinical translation and addresses the associated ethical and regulatory considerations.
基金supported by the National Key Research&Development Program of China(Grant No.:2022YFA1304500)the National Natural Science Foundation of China(Grant Nos.:22227805,and 22374004)+1 种基金Excellent Young Scientists Fund Program(Overseas)Clinical Medicine Plus X-Young Scholars Project of Peking University,the Fundamental Research Funds for the Central Universities(Grant No.:PKU2024LCXQ026).
摘要Aptamer therapeutics represent a class of target-based therapies that leverage their high specificity and affinity for diverse molecular targets.As single-stranded DNA or RNA oligonucleotides,aptamers offer advantages in therapeutic applications.A critical aspect of aptamer drug development is the selection process,which has seen significant advancements through various in vitro selection methods,including Systematic Evolution of Ligands by Exponential Enrichment and its emerging variations.Recent progress has also introduced functional screening strategies that directly identify pharmacologically active aptamers,accelerating drug discovery.The applications of aptamers in disease treatment are expanding across oncology,neurodegenerative disorders,infectious diseases and other diseases.Aptamers exhibit versatile mechanisms of action,including blocking interactions,recruiting protein machinery,and inhibiting target functions.By addressing key limitations and presenting future directions,this review provides a comprehensive perspective on the recent evolving landscape of aptamer technology and its transformative potential in modern medicine.
基金financial support from the Natural Science Foundation of China(Nos.82373732,22377023,22307031,81872727)Excellent Talent Team Project in Hainan Province(No.HNYT20250004)+1 种基金Hainan Provincial Natural Science Foundation of China(Nos.KJRC2023B10,222RC556,823CXTD375,324MS018)Fundamental Research Funds for Hainan University(Nos.XTCX2022JKA01,KYQD(ZR)-21126,KYQD(ZR)-23003)。
摘要In drug discovery,it is extremely important to identify highly potent leads with desirable drug-like profiles.Almost all the marketed phosphodiesterase 5(PDE5)inhibitors such as sildenafil,vardenafil,and tadalafil have poor selectivity over PDE6 or PDE11 and leading to several side effects.Herein,a metabolites-based scaffold hopping strategy was performed to discover selective PDE5 inhibitors with remarkable metabolic stability.The Eu(OTf)3-catalyzed Mannich-type reaction followed by L-selectride catalyzed reduction was used to prepare chiral 2,3,3a,4,5,6-hexahydro-1H-benzo[b]pyrido[2,3,4-de][1,6]naphthyridines as novel PDE5 inhibitors with high enantioselectivity(>99%ee and>30:1 dr).Lead L9exhibited a half maximal inhibitory concentration(IC50)of 1.03 nmol/L with higher selectivity(>898-fold)over PDE6 or PDE11 than sildenafil and tadalafil,implying the potential relief from side effects.Especially,the co-crystal binding pattern of L9 with PDE5 is revealed to be different from that of sildenafil,which possibly explain the former’s high selectivity.And oral administration of L9·HCl(5.0 mg/kg)exhibited better therapeutic effects than pirfenidone(150 mg/kg)in a bleomycin-induced idiopathic pulmonary fibrosis(IPF)rat model,highlighting the potential of L9·HCl for the treatment of IPF.
摘要The recent Nobel prizes in Physics to Giorgio Parisi,Geoffrey Hinton,and John Hopfield,officially proclaimed a deep epistemological change:the unity of different sciences is no more considered to stem from the fact that‘any entity is made by the same basic bricks’but on the recognition than‘any entity can be represented as a set of mutually interacting parts’.That is to say that any system[1]can be formalized as a‘network of interactions among its elements’.
基金supported by the National Natural Science Foundation of China(Nos.82273845,82304331,and 82360695)Guangxi Natural Science Foundation project(No.2023GXNSFBA026305).
摘要Hyperactivation of DNA repairing pathway is highly associated with the chemosensitivity and chemoresistance of cancer cells.In this manuscript,guided by cascaded one strain many compounds-global natural products social molecular networking(OSMAC-GNPS)strategy,a pair of epimeric environmental-induced metabolites were isolated from Aspergillus sp.EGF 15-0-3.Structurally,sterpiperazines A(1)and B(2)represent the first steroid-based indole alkaloids with unprecedented backbones.Biologically,compound 1 could be identified as a novel tyrosyl-DNA phosphodiesterase 1(Tdp1)inhibitor with a unique mechanism distinct from the reported modulators,and was able to significantly enhance the sensitivity of NCI-H460 cells to the clinic chemotherapeutic drug through inhibiting the DNA repairment and enhanced the DNA damage of cancer cells.
基金Support of the State of Rio de Janeiro(FAPERJ),Brazil(Grant Nos.:E-26/210.017/2024,E-200.172/2023,E-26/200.165/2024,E-26/200.164/2024,and E-26/210.547/2025)the Coordination for the Improvement of Higher Education Personnel(CAPES),Brazil(Finance Code 001)National Council for Scientific and Technological Development(CNPq),Brazil(Grant Nos.:307108/2021-0 and 302464/2022-0)for their support.
摘要Affinity selection mass spectrometry(AS-MS)has emerged as a powerful label-free technique for identifying and characterizing ligand-target interactions.This review explores the diverse applications of AS-MS in drug discovery,including its role in selective screening,binding site characterization,and quantitative affinity determination.We discuss the use of AS-MS for determining equilibrium dissociation constants(KD)and competitive binding parameters(affinity competition experiment 50%(ACE50)),highlighting its ability to rank ligand affinities efficiently.The review also examines AS-MS applications in fragment-based drug discovery(FBDD),screening for molecular glues,and investigating interactions with membrane proteins.Moreover,we address key technical challenges,including competitive binding effects,protein stability,and ligand dissociation kinetics,along with recent advancements in automation and artificial intelligence(AI)integration.Rather than providing a comprehensive literature review,this work aims to broaden the applicability of AS-MS assays and encourage researchers to explore its use in underutilized contexts.By providing rapid and high-sensitivity affinity measurements,AS-MS continues to expand its role in drug discovery and structural biology,complementing conventional biophysical techniques.