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2023 Fiscal Year Final Research Report

Establishment of periodontal tissue regeneration technology based on angiogenesis

Research Project

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Project/Area Number 21K12693
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90120:Biomaterials-related
Research InstitutionMeiji University

Principal Investigator

HONDA MICHIYO  明治大学, 理工学部, 専任教授 (20384175)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywords幹細胞 / 血管新生 / 歯根膜 / 歯周組織 / 共培養
Outline of Final Research Achievements

This study was undertaken with the objective of restoring periodontal tissue lost as a result of periodontal disease or traumatic incidents. It concentrated on the periodontal ligament, a pivotal component responsible for maintaining periodontal tissue homeostasis, and endeavored to fabricate an artificial periodontal ligament mirroring the structural characteristics inherent in living organisms.
We have shown that direct cell-cell interaction between periodontal ligament fibroblasts and vascular endothelial cells co-cultured in optimal ratios and indirect interaction by growth factors secreted by these cells are essential for the formation of artificial periodontal ligament-like sheets.

Free Research Field

分子細胞生物学

Academic Significance and Societal Importance of the Research Achievements

歯周組織の再生を目的とし、歯根膜線維芽細胞と血管内皮細胞を共培養することにより、1) 線維芽細胞が産生するコラーゲンが内皮細胞の増殖の足場となること、2) 線維芽細胞が分泌する種々のサイトカインが内皮細胞の遊走性を高め、緻密な血管網の形成に寄与すること、3) 内皮細胞が分泌するサイトカインが線維芽細胞の活性やコラーゲン産生能を向上させることにより、歯根膜様の構造体を作出した。組織再生においては、種々のサイトカインが足場となる細胞外マトリックスの構築、それに続く血管新生が効率的に行われることが重要であることを示した。

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Published: 2025-01-30  

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