Hauv kev kho thaj chaw ntawm idiopathic pulmonary fibrosis, pirfenidon yog ib qho ntawm ob peb cov tshuaj uas tuaj yeem ua rau qeeb tus kab mob.Pirespa hmoovyog tshuaj 5-methyl-1-phenyl-2-(1H)-pyridone, me me-molecule antifibrotic tshuaj. Raws li ib tug ntau lub hom phiaj antifibrotic tus neeg saib xyuas, pirfenidone exerts nws antifibrotic teebmeem los ntawm ntau txoj kev, nrog rau inhibiting zus tau tej cov thiab kev ua ntawm transforming kev loj hlob factor- (TGF-), txo collagen synthesis, thiab downregulating inflammatory mediators, txawm hais tias nws lub caij nyoog molecular mechanism tseem tsis tau tag nrho elucidated.
🧬 Phenylidene pyridone stabilizes cov tshuaj molecular skeleton
Pirespa hmoov muaj tag nrho cov mis molecular C₁₂H₁₁NO thiab tus txheeb ze molecular loj ntawm 185.22. Nws cov tub ntxhais yog ib tug nruj heterocyclic qauv ntawm 5-methyl-1-phenyl-2-pyridone, tsis muaj chiral carbon atoms thiab dawb los ntawm stereoisomeric impurities uas yuav cuam tshuam nrog cellular fibrosis nrhiav kom tau cov ntaub ntawv. Lub conjugated planar qauv ntawm pyridine heterocycle thiab phenyl pawg ua kom lub molecular lub cia stability. Ordinary pyridone molecules yam tsis muaj kev hloov kho phenyl pom cov polarity tsis sib xws thiab yooj yim degraded los ntawm intracellular oxidases, tsis ua raws li kev ua haujlwm ntawm fibroblast signaling pathways. Piv txwv li,Pirespa hmoovtsim ib tug conjugated, hydrophobic dav hlau nrog lub nplhaib phenyl. Txawm tias tom qab 30 lub hlis ntawm kev khaws cia hauv lub thawv ntim, qhuav tiv thaiv los ntawm lub teeb ntawm 2-8 degree, nws tuav nws qhov kaw tsis zoo-ntiv nplhaib heterocyclic configuration. Ntev -ntev kev sib koom ua ke kev sim nrog lub ntsws fibroblasts thiab lub raum tubulointerstitial hlwb tsis qhia methyl hydrolysis los yog tawg, yog li muab kev ruaj khov thiab ruaj khov ntawm cov teeb liab fibrosis transduction.
Lub hauv paus pyridone tsib- koom nrog heterocycle yog lub hauv paus ua haujlwm hauv cheeb tsam khi rau TGF- cheeb tsam tswj hwm kev tswj hwm. Cov pab pawg carbonyl nyob rau hauv lub nplhaib tsim ib daim ntawv cog lus hydrogen nrog nitrogen atom, tso cai rau nws nkag mus rau hauv cov kab noj hniav txhawb nqa ntawm collagen- txhawb cov noob hauv fibroblast nucleus, inhibiting transcriptional qhia ntawm hom I thiab II procollagen. Cov derivatives uas tsis muaj cov qauv pyridone carbonyl tsis tuaj yeem cuam tshuam cov kab ke tswj cov kab ke, tsuas yog tsis muaj zog tiv thaiv kab mob, thiab nthuav tawm yuav luag tag nrho cov kev tiv thaiv kev tiv thaiv -fibrotic. Qhov tsis zoo pyridone heterocycle yog lub hauv paus kev txhawb nqa rau cov khoom no thaiv cov collagen deposition.
Sab -chain methyl pawg thiab lub davhlau ya nyob twg phenyl pawg synergistically tswj cov lipid- dej faib piv ntawm cov molecule. Cov pab pawg methyl txhim kho cov heterocycle lub lipid solubility, thaum pawg phenyl tsim lub dav hlau hydrophobic binding. Qhov kev hloov kho dual no tso cai rau cov molecule kom yooj yim nkag mus rau lipid txheej ntawm alveolar epithelium thiab lub raum tubular interstitial cell membranes, sai sai mus txog qhov chaw intracellular kom siv nws cov kev tswj xyuas. Cov polar me me molecules tawm tsam kom nkag mus rau cov ntaub so ntswg thickened, thiab cov ntaub ntawv raw hydrophobic zoo li ua rau nag thiab sib sau ua ke hauv kab lis kev cai nruab nrab.
Pirespa hmoov sib npaug cov ntaub so ntswg nkag mus thiab hnyav dispersibility, ua rau nws haum rau siab -throughput fibroblast fibrosis kuaj thiab loj- nplai peb- qhov ntev ntawm lub ntsws organoid simultaneous kab lis kev cai.
Tag nrho cov molecule tsis muaj qhov dav -spectrum cytotoxicity, tshwj xeeb tshaj yog tsom rau fibrotic-activated fibroblasts. Nws tsis cuam tshuam nrog cov txheej txheem metabolic hauv cov txheej txheem ntawm cov txheej txheem so epithelial thiab lub cev tiv thaiv kab mob, cais cov kab mob caws pliav los ntawm cov nqaij mos noj qab haus huv ntawm qib molecular thiab txo kev cuam tshuam los ntawm tsis yog{3}} txoj hauv kev tshwj xeeb. Tshem tawm ib qho kev hloov kho phenyl lossis methyl pab pawg txo cov molecule qhov kev sib raug zoo rau TGF- txoj hauv kev, ua rau muaj qhov txo qis hauv nws cov nyhuv inhibitory ntawm lub cev fibrosis.
⚙️ Triple pathways synergistically thaiv cov tshuaj tiv thaiv cascade ntawm lub cev fibrosis
Hauv cov tib neeg noj qab haus huv, fibroblasts hauv cov ntaub so ntswg interstitial ntawm lub cev tseem nyob hauv lub xeev so. Kev tso tawm ntawm pro-fibrotic kev loj hlob yam xws li TGF- , PDGF, thiab bFGF yog khaws cia nyob rau theem qis heev. Hom I thiab II collagen synthesis thiab degradation yog nyob rau hauv dynamic equilibrium. Cov ntaub so ntswg interstitial yog mos thiab tsis muaj caws pliav. Qhov kev tso tawm basal ntawm pro- cov kab mob inflammatory xws li TNF- thiab IL-1 tsis muaj zog, thiab lawv tsis ua rau muaj qhov txawv txav ntawm cov hlwb interstitial lossis cov ntaub so ntswg sclerosis. Gene transcription nyob rau hauv ib txwm mammalian epithelial thiab parenchymal hlwb tsis cuam tshuam nrog exogenous pyridone molecules, thiab cell proliferation, metabolism, thiab kho kom ruaj khov homeostasis.
Thaum lub ntsws, ob lub raum, thiab lub siab ua rau mob o, ua rau muaj kuab lom, thiab rov ua kom puas, cov ntaub so ntswg macrophages thiab interstitial hlwb tso tawm ntau ntawm TGF - 1, ib qho tseem ceeb pro-fibrotic factor. Qhov no ua rau cov fibroblasts so kom hloov mus rau hauv cov secretory myofibroblasts heev, tsis tu ncua thiab ntau heev synthesizing collagen fibers thiab fibronectin, ua rau tsub zuj zuj ntawm ntau ntawm extracellular matrix thiab tsim ntawm sclerotic nti. Nyob rau tib lub sijhawm, qhov tshwm sim tsis tu ncua ntawm cov kab mob inflammatory thiab tsub zuj zuj ntawm reactive oxygen hom exacerbate cell puas, tsim ib tug vicious voj voog ntawm "o - oxidative kev nyuaj siab - collagen deposition." Lub cev maj mam poob lawv cov elasticity ib txwm, thiab ua pa, pom, thiab metabolic ua haujlwm tsis tu ncua. Cov pa ib leeg los tiv thaiv- cov tshuaj tiv thaiv kab mob tsuas yog txo qis ib ntus ntawm cov kab mob inflammatory thiab tsis tuaj yeem thaiv qhov kev tsim cov collagen tas li, uas ua rau muaj qhov cuam tshuam tsis zoo ntawm cov kab mob fibrotic.
Pirespa hmoov, tom qab nkag mus rau cov kab mob interstitial, siv lub conjugated planar qauv ntawm phenylpyridinone:
- Nws thawj qhov kev txiav txim ncaj qha cuam tshuam qhov kev sau thiab tso tawm ntawm TGF- 1, PDGF, thiab bFGF hauv macrophages thiab interstitial hlwb, txiav tawm cov pro-fibrotic signals ntawm qhov chaw, thaiv kev ua kom thiab sib txawv ntawm cov txheej txheem fibroblasts, txo cov naj npawb ntawm myofibroblasts rau collagen fibers, thiab synthesis. Txoj kev thib ob ib txhij downregulates NF-κB inflammatory signaling pathway, inhibiting qhov kev tso tawm ntawm pro-inflammatory yam xws li TNF- , IL-1 , IL-6, thiab MCP-1, thaum upregulating cov kev qhia ntawm lub anti-inflammatory yam IL-10.
- Qhov no sib npaug ntawm Th1/Th2 lub cev tiv thaiv kab mob, alleviates persistent low-qib o ntawm qhov chaw ntawm qhov txhab, tshem tawm cov dej ntws uas tsis tu ncua ua rau fibrosis, thiab tiv thaiv kev mob rov ua dua -induced collagen tsub zuj zuj.
- Txoj kev thib peb exerts endogenous antioxidant kev ua, scavenging tshaj intracellular reactive oxygen hom, txo oxidative kev nyuaj siab puas tsuaj rau lub cev parenchymal hlwb, txo oxidation-mediated collagen cross-txuas thiab solidification, thiab tiv thaiv lub hardening ntawm xoob collagen fibers mus rau hauv daim tawv nqaij mus tas li caws pliav. Kev ua ib txhij ntawm peb txoj hauv kev no ua tiav kev tiv thaiv tag nrho -fibrotic saw: tswj kev taw qhia ntawm qhov chaw, txo qis qhov mob hauv nruab nrab, thiab inhibiting collagen deposition thaum kawg. Qhov no txawv ntawm cov khoom me me zoo tib yam -molecule raw khoom uas tsuas yog thaiv qhov mob los yog collagen synthesis ib leeg xwb.
Pirespa hmoov lub hom phiaj tsuas yog txoj hauv kev mesenchymal fibroblast qhib los ntawm cov kab mob fibrotic thiab tsis cuam tshuam nrog cov noob qhia thiab lub voj voog metabolic ntawm cov ntaub so ntswg ib txwm muaj. Dav -spectrum anti- cov neeg ua haujlwm fibrotic indiscriminately suppress cell loj hlob yam thoob plaws hauv lub cev. Kev sim tshuab tau kis kab mob ntau yam tsis cuam tshuam cov teeb meem xws li apoptosis thiab cov kab mob metabolic ntawm lub cev ib txwm muaj. Pirespa hmoov muaj lub hom phiaj tshwj xeeb stratification, uas tuaj yeem ntsuas qhov sib txawv ntawm "TGF- -kho cov kab mob hauv nruab nrog cev fibrosis inhibition" hauv kev tshawb fawb thwmsim, zoo heev txhim kho qhov raug thiab kev txhawb nqa ntawm kev sim cov lus xaus txog lub ntsws, lub raum, thiab daim siab fibrosis.
🧫 Tag nrho cov kev pab cuam ntawm fibrous scientific tshawb fawb daim ntawv thov scenarios
Pirespa hmoov yog tus qauv zoo tswj cov khoom siv rau hauv vitro fibrosis mechanism kev tshawb fawb ntawm idiopathic pulmonary fibrosis (IPF), feem ntau yog siv los tsim thawj tib neeg lub ntsws fibroblasts thiab peb - qhov ntev alveolar organoid fibrosis qauv. Lub hauv paus pathology ntawm IPF yog TGF- - tau tsav cov collagen ntau dhau. Cov kws tshawb fawb siv triple los tiv thaiv -fibrotic kev ua ntawm Pirespa hmoov los ua kom muaj nuj nqis collagen kev soj ntsuam, kuaj pom cov cim myofibroblast, thiab ua ELISA kom muaj nuj nqis ntawm cov kab mob inflammatory, tsim kom muaj kev ntsuam xyuas kev ua tau zoo rau cov tshuaj pulmonary fibrosis. Qhov no tso cai rau kev sib piv kab rov tav ntawm lub cev caws pliav inhibition cuam tshuam ntawm ntau yam tshiab heterocyclic anti-fibrotic me me molecules thiab natural extracts.
Pirespa hmoov yog dav siv nyob rau hauv lub cev pharmacological kev tshawb fawb txog lub raum interstitial fibrosis thiab daim siab fibrosis, thiab yog haum rau co- kab lis kev cai qauv ntawm oxidative puas nyob rau hauv lub raum tubulointerstitial hlwb thiab hepatic stellate hlwb. Kab mob raum ntev thiab kab mob siab viral ua rau lub sijhawm ntev - kev puas tsuaj uas tsis tu ncua induces interstitial collagen tsub zuj zuj.Pirespa hmoovtuaj yeem cuam tshuam kev tso tawm ntawm pro-fibrotic yam thiab o, ncua kev loj hlob ntawm lub cev sclerosis. Cov kws tshawb fawb tau txheeb xyuas txoj hauv kev tswj hwm ntawm fibrosis hauv ntau lub cev thiab tshuaj ntsuam dav dav -spectrum organ-cov tshuaj tiv thaiv kab mob, muab cov kev sim ruaj khov rau kev tsim cov tshuaj hauv qhov ncauj rau daim siab thiab lub raum fibrosis.
Nws muaj irreplaceable nqi nyob rau hauv kev tshawb fawb ntawm lub plawv remodeling thiab daim tawv nqaij caws pliav hyperplasia, thiab yog siv los tsim nyob rau hauv vitro qauv ntawm myocardial fibroblast thiab dermal fibroblast raug mob. Myocardial fibrosis thiab hypertrophic nti yog tshwm sim tom qab myocardial infarction thiab kev phais mob. Pirespa hmoov tuaj yeem txo cov collagen fiber ntau ntau thiab feem ntau siv hauv kev tshawb fawb txog kev kho lub cev tom qab thiab kho cov caws pliav ntawm daim tawv nqaij, nthuav dav txoj kev loj hlob ntawm kev nthuav dav -spectrum anti-fibrotic agents rau ntau lub cev.
Thoob plaws ntiaj teb, kev txhim kho tshiab pyridone los tiv thaiv-fibrotic lead molecules siv Pirespa hmoov raws li tus qauv siv tau zoo. Ntau lub nplhaib phenylpyridine- hloov kho cov khoom siv, cov khoom nruab nrog - phiaj xwm hloov kho me me molecules, thiab ntev - ua kom ruaj khov - tso tawm cov tshuaj tiv thaiv kab mob yuav tsum tau hla- ntu sib piv ntawm cov cim qhia tseem ceeb xws li TGF - txo qis hauv kev tiv thaiv kab mob, thiab kev tiv thaiv kab mob ntawm collagen. muaj peev xwm, thiab tsis yog - tshwj xeeb toxicity rau lub cev parenchymal hlwb. Kev ruaj khov thiab zoo ib yam ntawm peb txoj kev tswj hwm kev ua haujlwm, kev cuam tshuam tsawg los ntawm cov hlwb noj qab haus huv, thiab cov ntaub ntawv tshuaj ntsuam xyuas ntawm tes rov tsim tau ua rau nws yog tus qauv thoob ntiaj teb rau siab - dhau los ntawm kev tshuaj ntsuam thawj zaug ntawm cov tshuaj antifibrotic tshiab, qauv- kev sib raug zoo ntawm kev txheeb xyuas ntawm pyridine heterocycles, thiab rov ua kom zoo dua ntawm cov qauv molecular.
🔬 Iterative optimization kev taw qhia ntawm phenylpyridinone molecules
Site-Kev hloov kho tshwj xeeb ntawm pyridine nplhaib sab saw yog tam sim no txoj hauv kev tseem ceeb rau kev ua kom zooPirespa hmoovcov molecules, nrog rau kev tsom mus rau kev hloov kho cov methyl pawg ntawm txoj hauj lwm 5 thiab phenyl pawg ntawm txoj hauj lwm 1. Tus thawj molecule diffuses uniformly thoob plaws hauv lub cev, tab sis nws cov concentration nyob rau hauv lub ntsws thiab lub raum lesions yog txwv, yuav tsum tau nyob rau hauv nruab nrab concentrations inhibit interstitial fibrosis. Los ntawm grafting luv peptides nrog alveolar epithelial thiab lub raum tubular affinity mus rau lub phenyl terminus, cov hloov derivative tuaj yeem coj mus rau hauv thaj tsam interstitial ntawm cov kab mob. Cov koob tshuaj qis qis tuaj yeem thaiv TGF- cov teeb liab fibrosis, txo cov kab mob sib kis hauv cov kab mob peripheral noj qab haus huv, thiab ua rau nws tsim nyog rau kev tsim qis - koob tshuaj, ntev- ua qauv hauv nruab nrog cev fibrosis cuam tshuam.
Microenvironment- teb prodrug hloov kho ntawm cov kab mob fibrotic yog ib txoj hauv kev zoo tshaj plaws nyob rau xyoo tas los no, hais txog qhov teeb meem ntawm qhov tsis muaj zog basal cellular metabolic cuam tshuam los ntawm indiscriminate penetration ntawm molecules thoob plaws hauv lub cev. Pab neeg tshawb fawb tau koom ua ke ib pawg cleavable masking pab pawg ntawm carbonyl site ntawm pyridone pab pawg neeg mus rau acidic microenvironment ntawm fibrotic lesions, tsim ib tug tshwj xeeb activating prodrug rau lub interstitial lesion. Kev hloov kho prodrug tsis muaj TGF- txoj hauv kev inhibitory kev ua haujlwm hauv nruab nrab, lub cev noj qab haus huv, yog li tsis cuam tshuam nrog cov metabolism hauv collagen. Tsuas yog thaum nkag mus rau thaj tsam acidic lesion ntawm inflammatory fibrosis puas pab pawg neeg npog qhov ncauj tawg, tso cov active pirfenidon core, precisely lub hom phiaj thiab thaiv interstitial collagen deposition. Qhov no ntxiv dag zog rau lub cev molecular- tshwj xeeb lub hom phiaj, ua raws li qhov sib txawv ntawm qis -toxicity, broad-spectrum anti-fibrotic active pharmaceutical ingredients (APIs).
Ntau - txoj hauv kev hybrid molecule splicing broadens ciam teb ntawm pharmacological kev txiav txim, kov yeej cov kev txwv ntawm ib tug pyridone qaum qaum uas tsuas tswj fibrosis, o, thiab oxidative kev nyuaj siab. Cov kab mob hauv nruab nrog cev feem ntau yog nrog ntau yam teeb meem xws li apoptosis thiab microvascular puas; tsuas yog inhibiting collagen deposition tsis tuaj yeem kho lub cev kev puas tsuaj. Cov kws tshawb fawb tau sib xyaw ua ke cov phenylpyridone core qaum ntawm cov khoom no nrog kev tiv thaiv -apoptotic thiab vascular kho cov khoom tawg yooj yim los tsim ntau yam -kev ua haujlwm hybrid me me molecule. Qhov no ib txhij ua tiav plaub qhov teebmeem: thaiv cov pro-fibrotic yam, txo qhov mob o, tshem tawm cov dawb radicals, thiab tiv thaiv lub cev parenchymal hlwb. Qhov no kov yeej cov kev txwv kev ua haujlwm ntawm ib leeg - lub hom phiaj tiv thaiv -fibrotic APIs thiab muab txoj hauv kev tshiab rau kev tsim cov txheej txheem ntau- lub cev tiv thaiv cov hlau lead molecules.
Pyridine nplhaib hloov pauv zoo -tunes TGF- txoj hauv kev inhibition bias, hloov mus rau tus kheej cov kev xav tau ntawm ntau yam kev tshawb fawb ntawm cov kab mob fibrosis. Tus thawjPirespa hmoovmuaj qhov sib npaug ntawm cov nyhuv inhibitory ntawm lub ntsws thiab lub raum fibrosis, haum rau cov qauv kev raug mob interstitial; los ntawm kev kho cov phenyl substituent pab pawg neeg thiab cov methyl carbon saw ntev, lub binding affinity ntawm lub molecule rau lub ntsws fibroblasts thiab hepatic stellate hlwb yuav raug kho kom raug. Cov kev xaiv ntawm lub ntsws derivative yog tsim rau idiopathic pulmonary fibrosis- cov kev sim tshwj xeeb, thaum lub sij hawm sib npaug yog haum rau ntau- cov qauv hauv nruab nrog cev nrog rau daim siab thiab ob lub raum, ua kom meej subtyping ntawm organ fibrosis kev tshawb fawb.
Xaus
Pirespa hmoov yog thawj zaug me me -cov tshuaj molecule antifibrotic pom zoo rau kev kho mob ntawm idiopathic pulmonary fibrosis. Nws cov pob txha pyridone endows nws nrog ntau- phiaj xwm kev ua tshuaj. Los ntawm inhibiting pro-fibrotic kev loj hlob yam xws li TGF- , thaiv MRTF transcription factor signaling, thiab tswj inflammatory teb, pirfenidone tau qhia meej meej cov txiaj ntsig hauv kev ncua kev poob ntawm lub ntsws.
Xi'an Faithful BioTech Co., Ltd. siv cov cuab yeej siv siab heev thiab cov txheej txheem los xyuas kom meej - cov khoom zoo. PebPirespa hmoovua tau raws li cov qauv tshuaj thoob ntiaj teb. Peb txoj kev nrhiav kev ua tau zoo, tus nqi tsim nyog, thiab cov kev pabcuam zoo tshaj ua rau peb yog tus khub nyiam rau cov tsev kho mob thiab cov kws tshawb fawb thoob ntiaj teb. Yog tias koj xav tau Pirespa hmoov tshawb fawb lossis kev tsim khoom, thov hu rau peb pab neeg ua haujlwm ntawmallen@faithfulbio.com.
Cov ntaub ntawv
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- Acta Crystallographica Ntu E. (2019). Crystal qauv ntawm pirfenidon . 75, 984-986.
- Deutsches Zentrum rau Lugenforschung. (2017). Pirfenidone exerts antifibrotic los ntawm inhibition ntawm GLI transcription yam. FASEB Journal, 31(5), 1916-1928.
- European Respiratory Journal. (2023). Inhibition of MRTF activation as a Clinically achievable anti-fibrotic mechanism for pirfenidone. 61(4), 2200604.