申请人:Pusan National University Industry-University Cooperation Foundation 부산대학교 산학협력단(220040044843) BRN ▼621-82-06530
公开号:KR102141035B1
公开(公告)日:2020-08-06
본 발명은 대장 표적성 염증성 장질환 예방 또는 치료용 조성물에 관한 것으로, 보다 상세하게는 화학식 1로 표시되는 화합물 또는 이의 약학적으로 허용가능한 염, 상기 화합물 또는 이의 염을 유효성분으로 포함하는 염증성 장질환 예방 또는 치료용 약학 조성물 및 건강기능식품 조성물을 제공한다. 본 발명에 따른 화합물 또는 이의 약학적으로 허용가능한 염은 대장에서 장내 미생물의 효소에 의해서만 분해되어 활성화되는 대장 표적성을 가진 치료 조성물로, 대장에서 5-아미노살리실산과 5-아미노니코틴산으로 각각 방출될 수 있고, 서로의 효능을 보완하여 염증성 장질환의 치료 효과를 보다 향상시킬 수 있다.
To improve the anticolitic efficacy of 5-aminosalicylic acid (5-ASA), a colon-specific mutual prodrug of 5-ASA was designed. 5-ASA was coupled to procainamide (PA), a local anesthetic, via an azo bond to prepare 5-(4-[2-(diethylamino)ethyl]carbamoyl}phenylazo)salicylic acid (5-ASA-azo-PA). 5-ASA-azo-PA was cleaved to 5-ASA and PA up to about 76% at 10 h in the cecal contents while remaining stable in the small intestinal contents. Oral gavage of 5-ASA-azo-PA and sulfasalazine, a colon-specific prodrug currently used in clinic, to rats showed similar efficiency in delivery of 5-ASA to the large intestine, and PA was not detectable in the blood after 5-ASA-azo-PA administration. Oral gavage of 5-ASA-azo-PA alleviated 2,4,6-trinitrobenzenesulfonic acid-induced rat colitis. Moreover, combined intracolonic treatment with 5-ASA and PA elicited an additive ameliorative effect. Furthermore, combined treatment with 5-ASA and PA additively inhibited nuclear factor-kappaB (NF kappa B) activity in human colon carcinoma cells and inflamed colonic tissues. Finally, 5-ASA-azo-PA administered orally was able to reduce inflammatory mediators, NF kappa B target gene products, in the inflamed colon. 5-ASA-azo-PA may be a colon-specific mutual prodrug acting against colitis, and the mutual anticolitic effects occurred at least partly through the cooperative inhibition of NF kappa B activity.