2022 Fiscal Year Final Research Report
Development of an optimal environment for fat grafting using stem cell growth factors
Project/Area Number |
20K18437
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 56070:Plastic and reconstructive surgery-related
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Research Institution | Okayama University |
Principal Investigator |
Ota Tomoyuki 岡山大学, 大学病院, 助教 (90869140)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 脂肪幹細胞 / 培養上清 / 移植環境 / 幹細胞産生因子 / 皮下反復注射 / 基材移植 / IM法 |
Outline of Final Research Achievements |
To improve the engraftment rate of fat injections,we attempted to create a conducive transplantation environment by adding cell growth factors and cytokines produced by stem cells,to the first step of the induced membrane (IM) method,in which fat is transplanted after subcutaneous implant placement.Subsequently,stable results were obtained in terms of fat residuals and histological analysis,in subjects in the group in which PELNAC Gplus supernatant-impregnated base material was transplanted before fat injection.However,the results were not clearly distinct from those obtained in subjects in the other environmental groups.
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Free Research Field |
形成再建外科
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Academic Significance and Societal Importance of the Research Achievements |
乳房再建術における脂肪注入術は、他の術式より侵襲が小さく患者の負担は非常に少ない半面、一度の移植で生着可能な組織量が少なく複数回の手術が必要になることが欠点である。本邦では移植環境形成に関する報告は少なく、本研究は幹細胞が産生する細胞増殖因子やサイトカインを作用させ、脂肪生着・再生を促す移植環境を形成し、脂肪保持率を向上させた安全で確実な脂肪移植法を確立するものである。結果としてInduced Membrane法に幹細胞産生因子を付加した移植環境群と、コントロール群での明確な差を示すにはいたらなかったが、移植環境の解析を行うことにより脂肪生着・再生のメカニズム解明への足掛かりとなった。
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