The development of laminin-alginate microspheres encapsulated with Ginsenoside Rg1 and ADSCs for breast reconstruction after lumpectomy
| Autor: | I-Hsuan Yang, Shinn-Chih Wu, Jia-Jing Li, Ya-Jyun Liang, Tzu-Chieh Lin, Minal Thacker, Feng-Huei Lin, Yo-Shen Chen, Subhaini Jakfar |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adipose-derived stem cells
medicine.medical_specialty medicine.medical_treatment 0206 medical engineering Biomedical Engineering Adipose tissue Bio-electrospray 02 engineering and technology Chromosome aberration Article Biomaterials Tissue engineering In vivo lcsh:TA401-492 medicine lcsh:QH301-705.5 Laminin-alginate microspheres Ginsenoside Rg1 Chemistry Lumpectomy 021001 nanoscience & nanotechnology 020601 biomedical engineering Plastic surgery lcsh:Biology (General) Adipogenesis lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology Breast reconstruction Biotechnology Biomedical engineering |
| Zdroj: | Bioactive Materials Bioactive Materials, Vol 6, Iss 6, Pp 1699-1710 (2021) |
| ISSN: | 2452-199X |
| Popis: | Many technologies have been developed for breast reconstruction after lumpectomy. Although the technologies achieved promising success in clinical, there are still many shortages hanging over and trouble the researchers. Tissue engineering technology was introduced to plastic surgery that gave a light to lumpectomy patients in breast reconstruction. The unexpected absorption rate, resulting from limited vascularization and low cell survival rate, is a major factor that leads to unsatisfactory results for the previous studies in our lab. In the study, the laminin-modified alginate synthesized by a new method of low concertation of sodium periodate would be mixed with ADSCs and Rg1 in the medium; and then sprayed into a calcium chloride (CaCl2) solution to prepare into microsphere (abbreviated as ADSC–G-LAMS) by bio-electrospray with a power syringe for the mass production and smaller bead size. The developed ADSC–G-LAMS microspheres had the diameter of 232 ± 42 μm. Sustained-release of the Rg1 retained its biological activity. WST-1, live/dead staining, and chromosome aberration assay were evaluated to confirm the safety of the microspheres. In in vivo study, ADSC–G-LAMS microspheres combined with autologous adipocytes were transplanted into the dorsum of rats by subcutaneous injection. The efficacy was investigated by H&E and immunofluorescence staining. The results showed that the bioactive ADSC–G-LAMS microspheres could integrate well into the host adipose tissue with an adequate rate of angiogenesis by constantly releasing Rg1 to enhance the ADSC or adipocyte survival rate to join tissue growth and repair with adipogenesis for breast reconstruction after lumpectomy. Graphical abstract Image 1 Highlights • Laminin-modified alginate was successfully synthesized to mimic early embryonic environment. • Adipose-derived stem cells (ADSCs) and ginsenoside Rg1 were encapsulated into laminin-alginate microspheres (ADSC–G-LAMS) by bio-electrospray method. • ADSC–G-LAMS microspheres integrated into the host adipose tissue with an adequate rate of angiogenesis by constantly releasing Rg1. • The developed bioactive ADSC–G-LAMS microspheres can be potential scaffolds for stem cells and angiogenic factor carriers for tissue engineering. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|