Paclitaxel-eluting nanofiber-covered self-expanding nonvascular stent for palliative chemotherapy of gastrointestinal cancer and its related stenosis

Se Yoon Kim, Mina Kim, Min Kyoung Kim, Haneul Lee, DongKi Lee, Don Haeng Lee, Su Geun Yang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Self-expanding non-vascular metal stents (SEMS) is now a choice of treatment for tumor-induced obstructive symptoms of gastrointestinal tract. But in-growing tumor causes re-stenosis. Here, we studied a paclitaxel-eluting nanofiber-covered stent for palliative chemotherapy of gastrointestinal cancer and its related stenosis. In vivo and in vitro feasibility of nanofiber-covered nonvascular stent was evaluated in this study. Nanofiber-covered stent released paclitaxel (PTX) in controlled manner for 30 days. PTX-NFM significantly inhibited the growth of CT-26 colon cancer in comparison with PTX injection. PTX maintained higher tumor concentrations over 1.0 μg/ml for more than 14 days without systemic exposure. TUNEL and H&E staining proved locally concentrated PTX induced the higher apoptosis than PTX injection. In this way, PTX-eluting nanofiber-covered stent possibly inhibits in-growth of cancer and extends patency of stent. Clinical feasibility of PTX-eluting nanofiber nonvascular stent for cholangiocarcinoma and gastrointestinal cancers will be investigated in further studies.

Original languageEnglish
Pages (from-to)897-904
Number of pages8
JournalBiomedical Microdevices
Volume16
Issue number6
DOIs
Publication statusPublished - 2014 Oct 30

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All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Molecular Biology

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