KR101886114B1 - 조작된 구조체의 신경분포 - Google Patents
조작된 구조체의 신경분포 Download PDFInfo
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- KR101886114B1 KR101886114B1 KR1020147024303A KR20147024303A KR101886114B1 KR 101886114 B1 KR101886114 B1 KR 101886114B1 KR 1020147024303 A KR1020147024303 A KR 1020147024303A KR 20147024303 A KR20147024303 A KR 20147024303A KR 101886114 B1 KR101886114 B1 KR 101886114B1
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- cells
- smooth muscle
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- nerve
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Abstract
이 방법은 평활근 세포 와 뉴런 전구 세포의 개체군을 수득하고, 세포들을 함께 매트릭스 물질에 심은 후 방향성있게 지향된 평활근세포의 신경분포된 평활근세포 구조체를 형성하기 위해 심어진 세포를 배양하는 단계들을 포함한다.
하나의 실시예에서, 신경 전구세포는 우선 신경구로서 생체적합성 용액( 콜라겐/라미닌용액)에 심어지고 젤에도 허용된다.
다음, 두번째 평활근 세포의 현탁액은 분리된 층으로서 증착될 수 있다.
다중층 구조 교착근육 또는 신경 구성요소의 다중충 구조물은 이러한 방식으로 제조될 수 있다. 신경 전구세포의 분화는 뉴로베이살 A 배지(Neurobasal A medium) 에 대한 노출 및 또는 분화제 (B-27 보조제)에 대한 노출에 의해 유발될 수 있다.
신경배치된 근육구조체는 원형 스캐폴드주위(예를 들면 키토산을 포함하는 튜브) 배치될 수 있고, 더 배양되어 튜브모양의, 생체조작 구조체를 형성할 수 있다. 두개 또는 그 이상의 신경분포된 근육 구조체는 연장된 합성 구조체를 형성하기 위해 서로 연결될 수 있다.
Description
그림2는 신경분포된 평활근 구성체에서 전자기기적 결합 무결성(coupling integrity )를 보여주는 그래프이다
그림3은 신경분포되지 않은 평활근 구성체의 전자기기적 결합 무결성 (coupling integrity)를 보여주는 그래프이다.
그림4는 본질적으로 신경분포된 구성체에 있어서 아세틸콜린을 사용한 콜린성 수축(cholinergic contraction)(검은 선)과 뉴런 차단제 테트로도톡신 존재시의 수축(회색선)을 보여주는 그래프이다.
그림5는 초기에 신경분포되지 않은 구성체에 있어서 아세틸콜린을 사용한 콜린성 수축(검은 선)과 뉴런 차단제 테트로도톡신 존재시의 수축(회색선)을 보여주는 그래프이다.
그림 6은 신경분포된 구성체에 있어서 혈관수축성 내장 펩타이드 (VIP) 처치에 의한 이완과 뉴런 차단제 테트로도톡신 (회색선) 존재시의 이완을 보여주는 그래프이다.
그림7은 신경분포되지 않은 구성체에 있어서 혈관수축성 내장 펩타이드 (VIP) 처치에 의한 이완(검은 선)과 뉴런 차단제 테트로도톡신 존재시의 이완(회색 선)을 보여주는 그래프이다.
그림8은 신경분포된 구성체에 있어서 기초력(basal force)의 빠른 이완 이후의 기준치까지의 회복을 유도하기 위한 전기 자극(검은 선)과 신경 차단제 TTX 존재시의 자극(회색 선)을 보여주는 그래프이다.
그림 9는 기초력(basal force)의 빠른 이완이후 기준치까지의 회복을 유도하기 위한 전기자극(검은 선)과 뉴런 차단제 TTX 존재시의 자극(회색 선)을 표시하는 그래프이다.
Claims (20)
- 복합 신경분포된 평활근 세포 구조체(composite innervated smooth muscle cell structure)의 제조 방법으로서,
평활근 세포(smooth muscle cells)를 수득하는 단계;
뉴런 전구 세포(neuronal progenitor cells)를 수득하는 단계;
피브린 또는 콜라겐을 포함하는 제1 매트릭스 물질에 뉴런 전구 세포를 현탁시키는 단계;
피브린 또는 콜라겐을 포함하는 제2 매트릭스 물질에 평활근 세포를 현탁시키는 단계;
세포가 심어진 상기 제1 및 제2 매트릭스 물질을 서로 접촉시켜 중앙 기둥을 갖는 배양 플레이트 상에 침착(deposition)시켜 평활근 세포 및 뉴런 전구 세포의 구성체를 심는 단계;
상기 심어진 세포를 배양하여 방향성있게 배향된 평활근 세포의 신경분포된 평활근 세포 구성체(innervated smooth muscle cell construct)를 형성하는 단계;
중앙 기둥을 갖는 배양 플레이트로부터 신경분포된 평활근 세포 구성체를 제거하고, 튜브모양의 스캐폴드 주변에 상기 신경분포된 평활근 세포 구성체를 배치하는 단계;
상기 신경분포된 평활근 세포 구성체를 비-신경분포된 근육 세포 구성체와 연결하여 상기 튜브모양의 스캐폴드 주변에 신장된 복합 구조체를 형성하는 단계; 및
상기 비-신경분포된 근육 세포 구성체에 상기 신경분포된 평활근 세포 구성체로부터의 신경세포를 침윤(infiltrate)시키는 단계를 포함하는 방법. - 제1항에 있어서, 상기 평활근 세포 및 뉴런 전구 세포의 구성체를 심는 단계는 콜라겐 용액 또는 콜라겐 및 라미닌 용액 중 적어도 1개의 생체적합성 용액에서 신경구(neurospheres)로서 뉴런 전구 세포를 심는 단계를 더 포함하는 방법.
- 제2항에 있어서, 뉴런 전구 세포 용액을 젤이 되게 한 후 평활근 세포의 제2 현탁액을 침착(deposition)시키는 단계를 더 포함하는 방법.
- 제3항에 있어서, 상기 평활근 세포의 제2 현탁액은 콜라겐 용액을 더 포함하는 방법.
- 제1항에 있어서, 뉴로베이살(Neurobasal) A 배지 또는 B-27 보충제 중 적어도 1개에 노출시켜 상기 뉴런 전구 세포의 분화를 유도하는 단계를 더 포함하는 방법.
- 제1항에 있어서, 상기 튜브모양의 스캐폴드는 키토산을 포함하는 방법.
- 제1항에 있어서, 두개 이상의 신경분포된 평활근 세포 구성체를 서로 연결하여 신장된 복합 구조체를 형성하는 단계를 더 포함하는 방법.
- 제1항에 있어서, 상기 복합 신경분포된 평활근 세포 구조체는 튜브모양이며,
상기 방법은 상기 복합 신경분포된 평활근 세포 구조체를 자극하여 상기 튜브모양의 구조체를 따라서 진행하는 수축 파동을 생성하는 단계를 더 포함하는 방법. - 삭제
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US11156595B2 (en) | 2015-05-28 | 2021-10-26 | Axogen Corporation | Organotypic DRG-peripheral nerve culture system |
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JP6258224B2 (ja) | 2018-01-10 |
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US9993505B2 (en) | 2018-06-12 |
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CA2863310A1 (en) | 2013-08-08 |
KR20150013433A (ko) | 2015-02-05 |
US9675646B2 (en) | 2017-06-13 |
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