Article
  • Inhibition of Intimal Hyperplasia by Perivascular Delivery of Paclitaxel Using Poly(n-butylmethacrylate) or Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) in Balloon-Injured Rat Carotid Arteries
  • Kwon JS, Lee HY, Heo SH, Park RK, Shim TJ, Kim YK, Kim BS, Kim DW
  • 쥐 경동맥 손상 모델에서 Poly(n-butylmethacrylate) 혹은 Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)를 이용한 Paclitaxel 국소 전달 요법의 신생내막 형성 억제 효과
  • 권진숙, 이호연, 허신행, 박노관, 심태진, 김유경, 김범수, 김동운
Abstract
Polymer is a critical component of local drug delivery to prevent restenosis. This study tested whether poly(n-butylmethacrylate)(PBMA) and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (PHA) was candidates for this purpose. In vitro release of paclitaxel from PBMA and PHA loaded with 10% paclitaxel exhibited a triphasic release profile, with a fast initial and intermediate second phase followed by a slow release phase. Perivascular delivery of paclitaxel using these films inhibited neointimal hyperplasia in balloon-injured rat carotid arteries. The paclitaxel-loaded PBMA or PHA groups showed significant neointimal formation reductions versus the control groups (PBMA vs contol: 0.03±0.02 vs 0.10±0.01 mm2, p<0.05; PHA vs contol: 0.04±0.03 vs 0.09±0.01 mm2, p<0.05). This study suggests that PBMA and PHA could be good candidate polymers of local drug delivery to prevent restenosis. Perivascular delivery using these films represents a possible approach for prevention of restenosis. These can be candidate polymers for drug eluting stents.

Poly(n-butylmethacrylate)(PBMA)와 poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (PHA)가 혈관 협착 방지를 위한 국소 약물 요법시 유용한 고분자인지 검정하였다. 10% paclitaxel 함유 필름으로부터 방출되는 paclitaxel은 초기 1주간은 빠르게, 30일까지는 중증도로, 이후는 천천히 방출되었다. Paclitaxel 함유 필름들은 풍선 손상을 가한 쥐 경동맥의 신생내막 증식을 억제하였다 (PBMA vs contol：0.03±0.02 vs 0.10±0.01 mm2, p<0.05; PHA vs control: 0.04±0.03 vs 0.09±0.01 mm2, p<0.05). PBMA와 PHA는 혈관 협착 방지를 위한 약물 전달 고분자로 유용할 것으로 사료된다. 고분자 필름은 혈관 외벽에 장착이 용이한 경우 사용될 수 있다. 또한, 이 고분자들은 약물 방출 스텐트 개발시 이용될 수 있다.

Keywords: restenosis; drug delivery systems; polymers; paclitaxel

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2008; 32(3): 284-289

    Published online May 25, 2008

  • Received on Feb 18, 2008
  • Accepted on Mar 22, 2008