{"id":8717,"date":"2024-08-14T19:23:04","date_gmt":"2024-08-14T19:23:04","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=8717"},"modified":"2024-08-14T19:23:04","modified_gmt":"2024-08-14T19:23:04","slug":"the-south-china-sea-cup-leaf-sponge","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/a-del-kinai-tengeri-csesze-leveles-szivacs\/","title":{"rendered":"A d\u00e9l-k\u00ednai-tengeri Phyllospongia sp. cs\u00e9szelev\u00e9lszivacs szteroid-k\u00e9miai \u00f6sszet\u00e9tel\u00e9nek vizsg\u00e1lata"},"content":{"rendered":"<p>A d\u00e9l-k\u00ednai-tengeri Phyllospongia sp. cs\u00e9szelev\u00e9lszivacs szteroid-k\u00e9miai \u00f6sszet\u00e9tel\u00e9nek vizsg\u00e1lata<br \/>\nA szivacsok a Porifera t\u00f6rzsbe tartoznak, amely a legprimit\u00edvebb alacsonyabb t\u00f6bbsejt\u0171 \u00e1llat. A szivacsok v\u00e1ltozatos \u00e9l\u0151helye \u00e9s primit\u00edv evol\u00faci\u00f3s st\u00e1tusza lehet\u0151v\u00e9 teszi sz\u00e1mukra, hogy nagysz\u00e1m\u00fa, szerkezetileg \u00fajszer\u0171 m\u00e1sodlagos anyagcsereterm\u00e9ket termeljenek \u00e9s halmozzanak fel, amelyek k\u00fcl\u00f6nb\u00f6z\u0151 biol\u00f3giai aktivit\u00e1sokkal rendelkeznek, p\u00e9ld\u00e1ul daganatellenes, parazitaellenes, v\u00edrusellenes, antibakteri\u00e1lis, gyullad\u00e1scs\u00f6kkent\u0151 \u00e9s immunszab\u00e1lyoz\u00f3 hat\u00e1s\u00faak. Ezek a tengeri term\u00e9szetes term\u00e9kek els\u0151dleges forr\u00e1sa. A D\u00e9l-k\u00ednai-tenger hatalmas kiterjed\u00e9s\u0171, \u00e9s a vil\u00e1gon az egyik olyan ter\u00fclet, ahol a szivacsok koncentr\u00e1ltan fordulnak el\u0151. A d\u00e9l-k\u00ednai-tengeri szivacsok m\u00e1r \u00e9vek \u00f3ta a tengeri term\u00e9szetes term\u00e9kek k\u00e9mi\u00e1j\u00e1nak tanulm\u00e1nyoz\u00e1s\u00e1nak egyik forr\u00f3 t\u00e9m\u00e1ja. Bergmann professzor az amerikai Yale Egyetemr\u0151l m\u00e1r 1933-ban elkezdte tanulm\u00e1nyozni a szivacsok k\u00e9miai \u00f6sszet\u00e9tel\u00e9t, \u00e9s szteroidkomponenseket nyert bel\u0151l\u00fck. 1951-ben a Phyllospongia sp szivacsb\u00f3l olyan nukleozid vegy\u00fcleteket izol\u00e1lt, mint a spongothymidin \u00e9s a spongouridin; a k\u00e9s\u0151bbi v\u00edrusellenes gy\u00f3gyszer, az adenozin \u00e9s a r\u00e1kellenes gy\u00f3gyszer, a citarabin a spongothimidin szintetikus anal\u00f3gjai. A szivacskutat\u00e1sb\u00f3l nyert laulimalid, pelorusid A, szalicillihalimid A, variolinok \u00e9s dictyodendrinek preklinikai vizsg\u00e1latokba ker\u00fcltek, mint daganatellenes gy\u00f3gyszerek.<br \/>\nE cikk kutat\u00e1si t\u00e1rgya a Phyllospongia sp., a Demospongiae oszt\u00e1lyba, a Dictyoceratida rendbe \u00e9s a Spongidae csal\u00e1dba tartoz\u00f3 szivacs. Jelenleg sz\u00e1mos hazai \u00e9s k\u00fclf\u00f6ldi kutat\u00f3csoport v\u00e9gzett egy sor vizsg\u00e1latot ezen a szivacson, \u00e9s sz\u00e1mos szerkezetileg \u00fajszer\u0171 m\u00e1sodlagos anyagcsereterm\u00e9ket izol\u00e1ltak, k\u00f6zt\u00fck szeszkviterp\u00e9neket, szteroidokat, difenil-\u00e9tereket, glicerolipideket \u00e9s ceramidokat. Legt\u00f6bbj\u00fck egyedi tetraciklusos vagy pentaciklusos szkalar\u00e1n t\u00edpus\u00fa szeszkviterp\u00e9neket \u00e9s szteroidokat tartalmaz. Biol\u00f3giai aktivit\u00e1sukr\u00f3l azonban kev\u00e9s jelent\u00e9s sz\u00fcletett. A Phyllosponia sp. bioakt\u00edv komponenseinek jobb felt\u00e1r\u00e1sa \u00e9rdek\u00e9ben a k\u00eds\u00e9rletben k\u00fcl\u00f6nb\u00f6z\u0151 modern kromatogr\u00e1fi\u00e1s \u00e9s spektroszk\u00f3piai technik\u00e1kat alkalmaztunk \u00e1tfog\u00f3an a kivonat petr\u00f3leum\u00e9teres \u00e9s etil-acet\u00e1tos r\u00e9sz\u00e9b\u0151l izol\u00e1lt vegy\u00fcletek vizsg\u00e1lat\u00e1ra, valamint citotoxikus aktivit\u00e1suk sz\u0171r\u00e9s\u00e9re. Ez gazdag\u00edtotta a Phyllosponia sp. \u00f6sszet\u00e9tel\u00e9t, \u00e9s megalapozta a szivacs akt\u00edv \u00f6sszetev\u0151inek j\u00f6v\u0151beli fejleszt\u00e9s\u00e9t \u00e9s felhaszn\u00e1l\u00e1s\u00e1t.<br \/>\nk\u00e9p<br \/>\nk\u00e9p<br \/>\nEbben a tanulm\u00e1nyban a d\u00e9l-k\u00ednai-tengeri Xisha-szigetekr\u0151l gy\u0171jt\u00f6tt Phyllospongia sp. k\u00e9miai \u00f6sszetev\u0151it tanulm\u00e1nyoztuk. Nyolc szteroidot izol\u00e1ltunk el\u0151sz\u00f6r petr\u00f3leum\u00e9terb\u0151l \u00e9s dikl\u00f3rmet\u00e1nb\u00f3l, \u00e9s citotoxicit\u00e1sukat az MCF-7 (emberi eml\u0151r\u00e1ksejtek), HT-29 (emberi vastagb\u00e9lr\u00e1ksejtek) \u00e9s Hep-2 (emberi g\u00e9ger\u00e1kos epithelsejtek) eset\u00e9ben MTT-m\u00f3dszerrel vizsg\u00e1ltuk. K\u00f6z\u00fcl\u00fck az 1, 3, 4, 6 \u00e9s 8 vegy\u00fclet gyenge volt a HT-29 hum\u00e1n vastagb\u00e9lr\u00e1ksejtekkel szemben, az IC50 \u00e9rt\u00e9kek 83 \u03bc mol\/L-n\u00e9l nagyobbak voltak; az 1, 2 \u00e9s 7 vegy\u00fclet jelent\u0151s citotoxikus aktivit\u00e1st mutatott az MCF-7 sejtekkel szemben, az IC50 \u00e9rt\u00e9kek 8,8, 10,3, illetve 3,9 \u03bc mol\/L voltak; a 2 vegy\u00fclet j\u00f3 citotoxikus aktivit\u00e1st mutatott a Hep-2-vel szemben, az IC50 \u00e9rt\u00e9k 10,6 \u03bc mol\/L volt. A k\u00eds\u00e9rleti eredm\u00e9nyek azt mutatt\u00e1k, hogy a 7. vegy\u00fclet citotoxikus aktivit\u00e1sa jobb volt, mint a pozit\u00edv kontroll gy\u00f3gyszer ciszplatin csoport\u00e9. A vegy\u00fclet alacsony tartalma \u00e9s a jelent\u0151s aktivit\u00e1sr\u00f3l besz\u00e1mol\u00f3 irodalmi adatok hi\u00e1nya miatt a vegy\u00fcletben megvan a potenci\u00e1l, hogy szerkezeti m\u00f3dos\u00edt\u00e1ssal vagy szerves szint\u00e9zissel \u00faj daganatellenes gy\u00f3gyszerr\u00e9 fejl\u0151dj\u00f6n. Ezek a munk\u00e1k tov\u00e1bb vizsg\u00e1lj\u00e1k \u00e9s tanulm\u00e1nyozz\u00e1k a D\u00e9l-k\u00ednai-tenger \u00e9s a Xisha-szigetek szivacsk\u00e9szleteit \u00e9s biol\u00f3giai aktivit\u00e1s\u00e1t, \u00e9s hivatkoz\u00e1si alapot ny\u00fajtanak \u00faj daganatellenes k\u00e9miai szerkezetek \u00e9s vezet\u0151 vegy\u00fcletek keres\u00e9s\u00e9hez, amelyek nagy hat\u00e9konys\u00e1ggal \u00e9s alacsony toxicit\u00e1ssal rendelkeznek.<\/p>","protected":false},"excerpt":{"rendered":"<p>Study on the Steroid Chemical Composition of Phyllospongia sp. from the South China Sea Cup Leaf Sponge Sponges belong to the phylum Porifera, which is the most primitive lower multicellular animal. The diverse habitat and primitive evolutionary status of sponges enable them to produce and accumulate a large number of structurally novel secondary metabolites with [&hellip;]<\/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>Study on the Steroid Chemical Composition of Phyllospongia sp. from the South China Sea Cup Leaf Sponge - 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\/hu\/a-del-kinai-tengeri-csesze-leveles-szivacs\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Study on the Steroid Chemical Composition of Phyllospongia sp. from the South China Sea Cup Leaf Sponge - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Study on the Steroid Chemical Composition of Phyllospongia sp. from the South China Sea Cup Leaf Sponge Sponges belong to the phylum Porifera, which is the most primitive lower multicellular animal. 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