KR20150117439A - 바이오필름에 의해서 유발되는 감염증의 예방 또는 치료를 위한 약학적 조성물, 및 바이오필름 형성을 억제하기 위한 코팅용 조성물 - Google Patents
바이오필름에 의해서 유발되는 감염증의 예방 또는 치료를 위한 약학적 조성물, 및 바이오필름 형성을 억제하기 위한 코팅용 조성물 Download PDFInfo
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- KR20150117439A KR20150117439A KR1020140042897A KR20140042897A KR20150117439A KR 20150117439 A KR20150117439 A KR 20150117439A KR 1020140042897 A KR1020140042897 A KR 1020140042897A KR 20140042897 A KR20140042897 A KR 20140042897A KR 20150117439 A KR20150117439 A KR 20150117439A
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Abstract
본 발명에 따른 약학적 조성물 및 코팅용 조성물은 우수한 항균 효과를 보유하며, 바이오필름 형성 억제에 탁월한 효능을 나타내는 바, 바이오필름에 의해서 유발되는 각종 감염증의 예방 또는 치료, 및 각종 의료기기, 의료용 재료 또는 의료용 이식물 등에 형성되는 바이오필름을 억제하기 위한 코팅용 조성물에 유용하게 사용될 수 있다.
Description
도 2는 신펀진의 폐렴균성 인 비트로 바이오필름 성장에 미치는 효과를 나타낸 그래프이다. 도 2a 및 2b는, 다양한 농도의 신펀진과 함께 18 시간 동안 바이오필름을 성장시킨 다음, 바이오필름의 생질량을 크리스탈-바이올렛 마이크로적정기 플레이트 분석법에 의해서 측정하고, 폐렴균성 바이오필름의 CFU 카운트를 수행한 그래프이고, 도 2c 및 2d는, 이미 기구축된 바이오필름에 대한 다양한 농도의 신펀진의 효과를 도시한 그래프로서, 도 2c는 크리스탈-바이올렛 마이크로적정기 분석법으로 바이오필름의 생질량을 측정한 그래프이고, 도 2d는 폐렴균성 바이오필름의 CFU 카운트를 측정한 그래프이다. 오차 막대들은 평균 수치의 표준 편차를 나타낸다. 유의성은 Student's t test에 의해서 결정하였다 (*p < 0.05, ** p < 0.01).
도 3은 다양한 시간 간격들 (6, 12, 18 및 24 시간)로 성장된 Streptococcus pneumoniae 인 비트로 바이오플림들에 대한 신펀진 (35 ㎍ ml-1)의 억제 효과를 나타낸 그래프이다. 폐렴균성 바이오필름은 다양한 시간대에서 35 ㎍ ml-1의 신펀진과 함께 배양되었으며, 바이오필름 생질량은 크리스탈-바이올렛 마이크로플레이트 분석법에 의해서 정량화하였다. 도 3a는 6 시간에서 바이오필름 성장; 2b는 12 시간에서 바이오필름 성장; 2c는 18 시간에서 바이오필름 성장; 2d는 24 시간에서 바이오필름 성장을 나타낸 그래프이다. 실험들은 3중으로 3회 실시하였다. 오차 막대들은 평균 수치의 표준 편차를 나타낸다. 결과들은 Student's t test에 의해서 유의성 있었다 (*P < 0.05, **P < 0.005).
도 4는 신펀진 존재 및 부존재 하에서 성장된 바이오필름들의 주사 전자현미경 (SEM) 영상들을 도시한 것이다. 패널 a, b, 및 c는 신펀진 부존재 하에서 성장된 바이오필름들에 대한 대표적 SEM 영상들로서; 바이오필름은 두껍고 3차원 구조로 잘 조직되어 있었다. 패널 d, e, 및 f는 35 ㎍ ml-1의 신펀진과 함께 성장된 바이오필름들에 대한 대표적 SEM 영상들로서; 바이오필름은 얇고, 분산되고, 세포 무리들이 조직적 구조 없이 관찰되었다. 도면의 축적 막대는 10, 5, 및 3 ㎛이다.
도 5는 35 ㎍ ml-1의 신펀진 존재 및 부존재 하에서 성장된 바이오필름들의 무세포 상등액 중 자가유도체-2의 생산 변화를, vibro harveyi 리포터 균주를 사용하여 측정한 것이다. V. harveyi 리포터 균주는 무세포 상등액과 함께 15 시간 동안 배양하였으며, 발광 반응을 측정하였다. 오차 막대들은 평균 수치의 표준 편차를 나타낸다. 유의성은 Student's t test에 의해서 결정하였다 (*p < 0.05).
도 6은 35 ㎍ ml-1의 신펀진으로 접종된 래트의 중이 중에서 폐렴균성 군락화를 정량화한 그래프이다. CFU 카운트를 사용하여, 대조군에 대해서 신펀진이 공급된 박테리아 현탁액으로 처리된 샘플들의 전체 수포 용해물 (whole bulla lysate) 중 박테리아를 계수하였다. 오차 막대들은 평균 수치의 표준 편차를 나타낸다. 결과들은 Student's t test에 의해서 유의성 있었다 (*P < 0.05, **P < 0.005).
도 7은 Streptococcus pneumoniae에서, 호모시스테인 및 활성화된 메틸 사이클의 사이클 산물을 체계적으로 도시한 다이어그램이다. 메티오닌은 SAM 합성효소에 의해서 SAM으로 변환된다. SAM의 메틸기가 다양한 메틸기 수용체로 공여됨으로써 SAH가 생산되고, MTA/SAH 뉴클레오시데이즈 (pfs)가 먼저 SAH를 S-라이보실호모시스테인 (SRH)으로 변환시키며, 이는 다시 LuxS에 의해서 호모시스테인으로 재순환된다. 이러한 반응의 부산물로서, 4,5-다이하이드록시-2,3-펜탄디온이 생산되며, 이는 자발적으로 자가유도체-2를 생성하게 된다. SAM이 탈카르복실화되면, 스페르미딘 합성효소 (speE)에 의해서 촉매화되는 것처럼 MTA (메틸티오아데노신)이 생산된다. 스페르미딘 (폴리아민)은 푸트레신으로부터의 이러한 반응의 부산물이다.
유전자 | 프라이머 서열 | 앰플리콘 크기 (염기쌍) |
speE | F-5'-GACTTTGCTGCAGGGCTAGA-3' R-5'-AAATGGATCTGTCGCATCGT-3' |
120 |
luxS | F-5'-TATGTTCGCTTGATTGGG-3' R-5'-GCCGGCAGTAGGGATAGAGT-3' |
105 |
pfs | F-5'TTGCTGCTATGCCAGAAGAA-3' R-5'-TTCCCCAAAACAACTTGCTC-3' |
76 |
gyrB | 5'-CAGATCAAGAAATCAAACTCCAA-3' 5'-CAGCATCATCTACAGAAACTC-3' |
172 |
Claims (5)
- 신펀진을 유효성분으로 포함하며, 바이오필름에 의해서 유발되는 감염증의 예방 또는 치료를 위한 약학적 조성물.
- 제1항에 있어서, 상기 감염증은, 충치, 치주염, 중이염, 근골계 감염, 괴사성 근막염, 담관계 감염, 골수염, 세균성 전립선염, 자연 판막의 심내막염, 낭포성 섬유증 폐렴, 멜로이도시스 (meloidosis), 병원내 감염 (nosocomial infection), ICU 폐렴, 요로 카테터 방광염 (urinary catheter cystitis), 복막 투석 (CAPD) 복막염 및 담도 배액관 폐쇄 (biliary stent blockage)로 이루어진 군으로부터 선택된 1종 이상의 감염증인 것을 특징으로 하는 약학적 조성물.
- 제1항에 있어서, 상기 바이오필름은 살모넬라균 (Salmonella spp.), 적리균 (Shigella spp.), 장염비브리오 (Vibrio parahaemolyticus), 콜레라균 (Vibrio choreae), 대장균 O-157 (Escherichia coli O-157), 캠필로박터 (Campylobacter jejuni), 위막성 대장염균 (Clostridium difficile), 웰치균 (Clostridium perfringens), 엘시니아 장염균 (Yersinia enterocolitica), 피로리균 (Helicobacter pylori), 아메바 적리균 (Entemoeba histolytica), 세레우스균 (Bacillusu cereus), 보툴리누스균 (Clostridium botulinum), 인플루엔자균 (Haemophilus influenzae), 폐렴구균 (Streptococcus pneumoniae), 클라미디아 폐렴균 (Chlamidia pneumoniae), 레지오넬라 폐렴균 (Legionella pneumoniae), 부란하멜라균 (Branhamella catarrhalis), 결핵균 (Mycobacterium tuberculosis), 마이코플라즈마 (Mycoplasma pneumoniae), A형 용련균 (Storeptcoccus pyogenes), 디프테리아균 (Corynebacterium diphtheriae), 백일해균 (Bordetella pertussis), 옴병균 (Chramidia psittaci), 녹농균 (Pseudo monas aerginosa), 메티실린 내성 황색 포도상 구균 (methicillin resistant Staphylococcus aureus, MRSA), 대장균 (Escherichia coli), 폐렴 간균 (Klebsiella pneumoniae), 엔테로박터 (Enterobacter spp.), 프로테우스속 (Proteus spp.), 아시네토박터 (Acinetobacter spp.), 장구균 (Enterococcus faecalis), 포도상 구균 (Staphylococcus saprophyticus) 및 B형 용련균 (Storeptcoccus agalactiae)으로 이루어진 군으로부터 선택된 1종 이상의 균에 의해서 형성된 것을 특징으로 하는 약학적 조성물.
- 신펀진을 유효성분으로 포함하며, 바이오필름 형성을 억제하기 위한 코팅용 조성물.
- 제4항에 있어서, 의료기기, 의료용 재료 또는 의료용 이식물에 코팅되는 것을 특징으로 하는 코팅용 조성물.
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