論文 - 詳細
| RRC ID | 71637 |
|---|---|
| 著者 | Nagayama K, Hanzawa T. |
| タイトル | Cell type-specific orientation and migration responses for a microgrooved surface with shallow grooves. |
| ジャーナル | Biomed Mater Eng |
| Abstract |
BACKGROUND:Directional cell migration due to mechanosensing for in vivo microenvironment, such as microgrooved surfaces, is an essential process in tissue growth and repair in both normal and pathological states. Cell migration responses on the microgrooved surfaces might be reflected by the cell type difference, which is deeply involved in cellular physiological functions. Although the responses are implicated in focal adhesions (FAs) of cells, limited information is available about cell migration behavior on the microgrooved surfaces whose dimensions are comparable with the size of FAs. OBJECTIVE:In the present study, we investigated the cell orientation and migration behavior of normal vascular smooth muscle cells (VSMCs) and cervical cancer HeLa cells on the microgrooved surface. METHOD:The surface comprises shallow grooves with 2-μm width and approximately 150-nm depth, which indicates the same order of magnitude as that of the horizontal and vertical size of FAs, respectively. Moreover, VSMCs presenting well-aligned actin stress fibers with mature FAs revealed marked cell elongation and directional migration on the grooves; however, HeLa cells with nonoriented F-actin with smaller FAs did not. Furthermore, atomic force microscopy live cell imaging revealed that the internal force of the actin stress fibers was significantly higher in VSMCs than that in HeLa cells, and the increase or decrease in the cytoskeletal forces improved or diminished the sensing ability for shallow grooves, respectively. RESULTS:The results strongly indicated that directional cell migration with contact guidance responses should be modulated by cell type-specific cytoskeletal arrangements and intracellular traction forces. The differences in cell type-specific orientation and migration responses can be emphasized on the microgrooves as large as the horizontal and vertical size of FAs. CONCLUSION:The microgoove structure in the size range of the FA protein complex is a powerful tool to clarify subtle differences in the intracellular force-dependent substrate mechanosensing. |
| 巻・号 | 33(5) |
| ページ | 393-406 |
| 公開日 | 2022-1-1 |
| DOI | 10.3233/BME-211356 |
| PII | BME211356 |
| PMID | 35180105 |
| MeSH | Actins* Cell Adhesion Cell Movement Cell Proliferation Focal Adhesions HeLa Cells Humans Myocytes, Smooth Muscle* |
| IF | 1.243 |
| リソース情報 | |
| ヒト・動物細胞 | HeLa(RCB0007) |