Coating nanofiber scaffolds with beta cell membrane to promote cell proliferation and function

Area of Science:

• Biomaterials Science
• Cell Biology
• Nanotechnology

Background:

• Cell membrane cloaking functionalizes nanomaterials with cell-specific antigens and functions.
• Prior research focused on cell membrane-coated spherical nanoparticles.
• Nanofibers possess distinct dimensional and mechanophysical properties compared to nanoparticles.

Purpose of the Study:

• To extend the cell membrane cloaking technique to nanofibers.
• To investigate the characteristics of cell membrane-coated nanofibers.
• To evaluate the impact of these modified nanofibers on pancreatic beta cell function.

Main Methods:

• Coating nanofibers with membranes from pancreatic beta cells.
• Characterizing the antigenic properties of the modified nanofibers.
• Culturing beta cells on both modified and unmodified nanofiber scaffolds.

Main Results:

• Successfully prepared cell membrane-coated nanofibers.
• Confirmed that modified nanofibers exhibit an antigenic exterior similar to beta cells.
• Observed significantly enhanced beta cell proliferation and function on coated scaffolds.
• Demonstrated a nearly five-fold increase in glucose-dependent insulin secretion.

Conclusions:

• Cell membrane coating can be successfully applied to nanofibers.
• This technique enhances beta cell proliferation, function, and insulin secretion.
• Coating nanofibers with cell membranes offers new possibilities for regenerative medicine and biomaterial applications.