Histologic evaluation of a catheter coated with paclitaxel PLGA nanoparticles in the internal jugular veins of rats

Song-Yi Kim; Susmita Aryal; Wan Su Yun; Woo Cheol Kim; Suk-Bae Moon; Gi-Bong Chae; Jaehong Key; Seongyup Kim

doi:10.1007/s13534-023-00282-y

Histologic evaluation of a catheter coated with paclitaxel PLGA nanoparticles in the internal jugular veins of rats

Biomed Eng Lett. 2023 Apr 29;13(3):505-514. doi: 10.1007/s13534-023-00282-y. eCollection 2023 Aug.

Authors

Song-Yi Kim¹, Susmita Aryal², Wan Su Yun², Woo Cheol Kim², Suk-Bae Moon³, Gi-Bong Chae³, Jaehong Key², Seongyup Kim⁴

Affiliations

¹ Department of Surgery, Chungnam National University Sejong Hospital, Sejong, Korea.
² Department of Biomedical Engineering, Yonsei University, Wonju, Korea.
³ Department of Surgery, College of Medicine, Kangwon National University, Chun-Cheon, Korea.
⁴ Department of Surgery, College of Medicine, Yonsei University, Wonju, Korea.

Abstract

The aim of this study is to investigate the potential impact of catheterization on intimal hyperplasia and explore the efficacy of Paclitaxel loaded PLGA nanoparticles (PTX-NPs) in preventing stenosis at the site of venous injury. Under general anesthesia, Central Venous Catheters were inserted into the rat's right internal jugular veins (IJV) using the cut-down technique. Twenty bare catheters (C) and twenty PTX-NPs coated catheters (P) were assigned to one of four groups (C2, C4, P2, or P4) based on catheter type and expected survival time. 2 or 4 weeks after surgery, IJVs were completely harvested by formalin fixation and gelatin infusion and slides were stained with H&E (Haematoxylin and Eosin) and Masson's technique. The P2 (Paclitaxel coating, 2 weeks) group showed the most proliferation among the four groups and the P4 (Paclitaxel coating, 4 weeks) showed a tendency to decrease proliferation. Additionally, the lumen size in the P4 group was about 6% smaller than in the P2 group, and there was a lower prevalence of stenotic grade in the P4 group. Our study suggests that PTX-NPs coated catheters may be effective in preventing venous stenosis if the intended usage is prolonged, rather than for a short-term period.

Graphical abstract: Schematic representation of catheter functionalization and coating of PTX-NPs on Catheter.

Supplementary information: The online version contains supplementary material available at 10.1007/s13534-023-00282-y.

Keywords: Central venous catheters; Intimal hyperplasia; Nanoparticles; Neointima; Paclitaxel; Stenosis.

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