論文 - 詳細
| RRC ID | 86149 |
|---|---|
| 著者 | Nishiguchi A, Ito S, Nagasaka K, Komatsu H, Uto K, Taguchi T. |
| タイトル | Injectable microcapillary network hydrogels engineered by liquid-liquid phase separation for stem cell transplantation. |
| ジャーナル | Biomaterials |
| Abstract |
Injectable hydrogels are promising carriers for cell delivery in regenerative medicine. However, injectable hydrogels composed of crosslinked polymer networks are often non-microporous and prevent biological communication with host tissues through signals, nutrients, oxygen, and cells, thereby limiting graft survival and tissue integration. Here we report injectable hydrogels with liquid-liquid phase separation-induced microcapillary networks (μCN) as stem cell-delivering scaffolds. The molecular modification of gelatin with hydrogen bonding moieties induced liquid-liquid phase separation when mixed with unmodified gelatin to form μCN structures in the hydrogels. Through spatiotemporally controlled covalent crosslinking and dissolution processes, porous μCN structures were formed in the hydrogels, which can enhance mass transport and cellular activity. The encapsulation of cells with injectable μCN hydrogels improved cellular spreading, migration, and proliferation. Transplantation of mesenchymal stem cells with injectable μCN hydrogels enhanced graft survival and recovered hindlimb ischemia by enhancing material-tissue communication with biological signals and cells through μCN. This facile approach may serve as an advanced scaffold for improving stem cell transplantation therapies in regenerative medicine. |
| 巻・号 | 305 |
| ページ | 122451 |
| 公開日 | 2024-3-1 |
| DOI | 10.1016/j.biomaterials.2023.122451 |
| PII | S0142-9612(23)00459-3 |
| PMID | 38169189 |
| MeSH | Animals Gelatin* / chemistry Hydrogels* / chemistry Phase Separation Stem Cell Transplantation |
| IF | 10.317 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 1 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ヒト・動物細胞 | L929(RCB2619) |