{"id":7563,"date":"2024-08-06T20:32:26","date_gmt":"2024-08-06T20:32:26","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=7563"},"modified":"2024-08-06T20:32:26","modified_gmt":"2024-08-06T20:32:26","slug":"immobilized-betulinic-acid-affinity-integral-column","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/immobilized-betulinic-acid-affinity-integral-column\/","title":{"rendered":"Fremstillingsmetode og anvendelse af immobiliseret betulinsyre-affinitetsintegralkolonne"},"content":{"rendered":"<p>Fremstillingsmetode og anvendelse af immobiliseret betulinsyre-affinitetsintegralkolonne<br \/>\n23-hydroxybetulinsyre (23-HBA) er en pentacyklisk triterpenoidforbindelse af lupintypen, der er isoleret fra den traditionelle kinesiske medicinplante Pulsatilla chinensis i Ranunculaceae-familien. Det findes ogs\u00e5 i forskellige planter som Betula pubescens, Ziziphus mauritiana, Prunella vulgaris, Apocynaceae, og er is\u00e6r udbredt i Betula-familien. Moderne farmakologisk forskning har vist, at det har en r\u00e6kke virkninger s\u00e5som antiviral, h\u00e6mning af tumorcelleproliferation, h\u00e6mning af angiogenese og kombineret sensibilisering. For eksempel har denne type forbindelse en unik virkningsmekanisme, ekstremt lav toksicitet og minimale bivirkninger, hvilket g\u00f8r det til en meget lovende kandidatforbindelse til anti-HIV-1-terapi; For eksempel kan mange derivater af 23-HBA ogs\u00e5 h\u00e6mme den biologiske aktivitet af forskellige tumorer og kr\u00e6ftceller, s\u00e5som endetarmskr\u00e6ft, lungekr\u00e6ft, leuk\u00e6mi, lymfom, prostatacancer, ovariecancer osv. ved at h\u00e6mme specifikke enzymer, der er n\u00f8dvendige for celleoverlevelse og v\u00e6kst, s\u00e5som ornithindecarboxylase. Derfor betragtes 23-HBA som en f\u00f8rende forbindelse med betydelig forskningsv\u00e6rdi.<br \/>\nI de senere \u00e5r har vores forskningsgruppe gennemf\u00f8rt systematiske unders\u00f8gelser af derivatiseringen af 23-HBA og opn\u00e5et det vigtige derivat 3,23-diacetyl-17-eddikesyre-betulinsyre (i det f\u00f8lgende ben\u00e6vnt Derived BA) af 23-HBA med bedre aktivitet. Forskningen i virkningsmekanismen for s\u00e5danne 23-HBA-derivater er dog stadig i sin vorden, og der er kun f\u00e5 rapporter om deres m\u00e5l, der st\u00e5r over for dilemmaet med uklare m\u00e5l og mekanismer. Derfor har udviklingen af en effektiv, hurtig og enkel metode til at identificere og identificere protein-\/enzymm\u00e5l for naturlige produkter et meget bredt og vigtigt anvendelsesperspektiv. Det er v\u00e6rd at bem\u00e6rke, at der i de senere \u00e5r har v\u00e6ret forskellige teknologiske midler til opdagelse og forskning af l\u00e6gemiddelm\u00e5lproteiner; Blandt dem kan den kemiske proteomikteknologi baseret p\u00e5 affinitetsberigelsesfiskeri udnytte eller simulere de specifikke interaktioner mellem biomolekyler og tjene som en station\u00e6r fase til kromatografi til selektivt at analysere og rense specifikke stoffer fra komplekse blandinger. Derfor er det blevet en af de vigtigste metoder til at studere proteinm\u00e5l for sm\u00e5 molekyler med betydelige fordele s\u00e5som h\u00f8j kapacitet og lave omkostninger. Indtil videre er affinitetskromatografi blevet anvendt med succes i s\u00f8gningen efter m\u00e5lproteiner for forskellige l\u00e6gemidler som tacrolimus, cyclosporin, methotrexat osv. Ved at forberede en ny affinitetskromatografikolonne bundet med 23-HBA-derivater unders\u00f8ger vi affinitetsscreeningen af proteiner udvundet fra celler eller v\u00e6v for at opdage tilsvarende m\u00e5lproteiner. Dette forventes at etablere nye ideer og metoder til s\u00f8gning og unders\u00f8gelse af m\u00e5lproteiner af naturlige produkter; Samtidig giver det ogs\u00e5 en vigtig forskningsplatform til unders\u00f8gelse af interaktionen mellem sm\u00e5 molekyl\u00e6re naturlige produkter og forskellige m\u00e5l.<br \/>\nBlandt almindelige matrixmaterialer til affinitetsberigelse har silicagel god kromatografisk ydeevne, men d\u00e5rlig syre- og alkalimodstand; Harpiks og agarose er velegnede til et bredt pH-omr\u00e5de, men har d\u00e5rlig mekanisk styrke. En monolitisk s\u00f8jle er en station\u00e6r fase med kontinuerligt leje, der dannes ved in situ-polymerisation af en blanding af monomerer, tv\u00e6rbindingsmidler, initiatorer og poredannende midler i en kromatografisk s\u00f8jle, der er egnet til hurtig analyse og flowhastighedsgradienttilstand. Sammenlignet med traditionelle pakkede s\u00f8jler har den fordelene ved enkel forberedelsesmetode, nem modifikation, h\u00f8j s\u00f8jleeffektivitet, god permeabilitet, lavt modtryk og hurtig masseoverf\u00f8rselshastighed; Samtidig har den ogs\u00e5 fordelen ved kontrollerbar porest\u00f8rrelse, hvilket har store fordele ved adskillelse og analyse af biomolekyler. Derfor har udviklingen af ny polymerbaseret masseaffinitetskromatografi baseret p\u00e5 syre- og alkaliresistens og god biokompatibilitet vigtig teoretisk og praktisk betydning.<br \/>\nDer findes i \u00f8jeblikket ingen litteraturrapporter om monolitiske s\u00f8jler af organisk polymer bundet med 23-HBA-forbindelser. Denne unders\u00f8gelse brugte hovedsageligt \"one pot-metoden\", der blev rapporteret tidligere, til at forberede en ny immobiliseret 23 HBA-m\u00e5lpolymermonolitisk s\u00f8jle poly (GMA-EDA-BA-co EDMA) ved in situ termisk polymerisering i en 100 \u03bc m ID (indre diameter) kapillars\u00f8jle; Samtidig unders\u00f8gte vi grundigt sammens\u00e6tningen og forholdet mellem den forberedte monolitiske s\u00f8jle og unders\u00f8gte dens virkningsmekanisme.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7564\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-315.png\" alt=\"\" width=\"1052\" height=\"372\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-315.png 1052w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/1-315-768x272.png 768w\" sizes=\"(max-width: 1052px) 100vw, 1052px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7565\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-267.png\" alt=\"\" width=\"1052\" height=\"315\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-267.png 1052w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/2-267-768x230.png 768w\" sizes=\"(max-width: 1052px) 100vw, 1052px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7566\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-252.png\" alt=\"\" width=\"1052\" height=\"308\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-252.png 1052w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/3-252-768x225.png 768w\" sizes=\"(max-width: 1052px) 100vw, 1052px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7567\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-232.png\" alt=\"\" width=\"1062\" height=\"427\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-232.png 1062w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/4-232-768x309.png 768w\" sizes=\"(max-width: 1062px) 100vw, 1062px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7568\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-208.png\" alt=\"\" width=\"1110\" height=\"361\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-208.png 1110w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/5-208-768x250.png 768w\" sizes=\"(max-width: 1110px) 100vw, 1110px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7569\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-191.png\" alt=\"\" width=\"1100\" height=\"330\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-191.png 1100w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/6-191-768x230.png 768w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7570\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/7-175.png\" alt=\"\" width=\"670\" height=\"455\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7571\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-156.png\" alt=\"\" width=\"1100\" height=\"368\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-156.png 1100w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/8-156-768x257.png 768w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7572\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/9-144.png\" alt=\"\" width=\"640\" height=\"415\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7573\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-114.png\" alt=\"\" width=\"1062\" height=\"430\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-114.png 1062w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/10-114-768x311.png 768w\" sizes=\"(max-width: 1062px) 100vw, 1062px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7574\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/11-107.png\" alt=\"\" width=\"660\" height=\"510\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7575\" src=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-89.png\" alt=\"\" width=\"1068\" height=\"446\" srcset=\"https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-89.png 1068w, https:\/\/longchangextracts.com\/wp-content\/uploads\/2024\/08\/12-89-768x321.png 768w\" sizes=\"(max-width: 1068px) 100vw, 1068px\" \/><br \/>\nI denne artikel unders\u00f8ges en metode til fremstilling af en affinitetskromatografikolonne til immobilisering af sm\u00e5 molekyler af naturlige produkter. For det f\u00f8rste syntetiseres EDA-BA-funktionelle monomerer (ligander) med aktive ethylendiamingrupper ved at \u00e6ndre 28-positionen, hvilket ikke p\u00e5virker aktiviteten v\u00e6sentligt. Poly (GMA-EDA-BA co EDMA) integrerede kromatografikolonner fremstilles ved hj\u00e6lp af en \"one pot-metode\" med andre monomerer og tv\u00e6rbindingsmidler. Kernen i denne unders\u00f8gelse er at udvikle en metode til fremstilling af affinitetskromatografikolonner til immobilisering af sm\u00e5 molekyler af naturlige produkter med salgsfremmende v\u00e6rdi. \"One pot-metoden\" har store fordele i forberedelseseffektivitet, ikke kun ved at spare tid og reducere rensningsomkostningerne for monomere forbindelser, men ogs\u00e5 ved at opretholde affiniteten af den kromatografiske s\u00f8jle. Niveauet for kommercialisering af funktionelle monomerer (ligander) bestemmer dog metodens yderligere promoveringsv\u00e6rdi; P\u00e5 nuv\u00e6rende tidspunkt er det stadig n\u00f8dvendigt at udf\u00f8re derivatdesign baseret p\u00e5 hvert lille molekyle, hvilket har visse mangler. Hvad ang\u00e5r den praktiske anvendelse og fremme af denne affinitetskromatografikolonne i komplekse systemer, er der behov for yderligere forskning i efterf\u00f8lgende eksperimenter.<br \/>\nNaturprodukter har altid v\u00e6ret en vigtig kilde til opdagelse af nye l\u00e6gemidler, og immobilisering af naturprodukter til fremstilling af tilsvarende affinitetskromatografikolonner er nyttigt for udviklingen af naturprodukter og bliver dermed et af forskningens hotspots. Denne artikel sigter mod at etablere en hurtig, effektiv og gennemf\u00f8rlig metode til s\u00f8gning og unders\u00f8gelse af m\u00e5lproteiner af naturlige produkter; Samtidig giver det ogs\u00e5 en vigtig forskningsmetode og platform til at udforske interaktionen mellem sm\u00e5 molekyl\u00e6re naturlige produkter og forskellige m\u00e5l, som forventes at vise god effektivitet i sygdomme. Den vigtigste m\u00e5de at opn\u00e5 effekten p\u00e5 er at h\u00e6mme alfa-amylase og alfa-glucosidase og derved reducere hydrolysen af polysaccharider og fremme glycansyntese. Dette tyder p\u00e5, at BA kan danne et affinitetsforhold med alfa-glucosidase og derved opn\u00e5 en betydelig kromatografisk retentionseffekt. Denne unders\u00f8gelse giver et videnskabeligt grundlag for at udforske virkningsmekanismen for denne integrerede s\u00f8jle, men dens specifikke anvendelse i faktiske pr\u00f8ver skal stadig fremmes yderligere i det efterf\u00f8lgende arbejde.<\/p>","protected":false},"excerpt":{"rendered":"<p>Fremstillingsmetode og anvendelse af immobiliseret betulinsyreaffinitetsintegralkolonne 23 hydroxybetulinsyre (23-HBA) er en pentacyklisk triterpenoidforbindelse af lupintypen, der er isoleret fra den traditionelle kinesiske medicinplante Pulsatilla chinensis i Ranunculaceae-familien. Den findes ogs\u00e5 i forskellige planter som Betula pubescens, Ziziphus mauritiana, Prunella vulgaris, Apocynaceae, og er is\u00e6r [...].<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Preparation method and application of immobilized betulinic acid affinity integral column - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/da\/immobilized-betulinic-acid-affinity-integral-column\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Preparation method and application of immobilized betulinic acid affinity integral column - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Preparation method and application of immobilized betulinic acid affinity integral column 23 hydroxy betulinic acid (23-HBA) is a lupine type pentacyclic triterpenoid compound isolated from the traditional Chinese medicine plant Pulsatilla chinensis in the Ranunculaceae family. 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