A graphene-based platform for induced pluripotent stem cells culture and differentiation

Area of Science:

• Biomaterials Science
• Stem Cell Biology
• Nanotechnology

Background:

• Induced pluripotent stem cells (iPSCs) are crucial for regenerative medicine but present challenges in culture and differentiation control.
• Graphene (G) and graphene oxide (GO) are advanced nanomaterials with diverse applications, including in biological contexts.

Purpose of the Study:

• To investigate the effects of graphene and graphene oxide surfaces on the culture, proliferation, and differentiation of mouse induced pluripotent stem cells (iPSCs).
• To evaluate the potential of graphene-based materials as a substrate for iPSC culture and directed differentiation.

Main Methods:

• Culture of mouse iPSCs on glass, graphene (G), and graphene oxide (GO) surfaces.
• Assessment of iPSC adhesion, proliferation rates, and pluripotency maintenance.
• Analysis of spontaneous differentiation into ectodermal, mesodermal, and endodermal lineages on different surfaces.

Main Results:

• iPSCs cultured on GO exhibited faster adhesion and proliferation compared to glass and G surfaces.
• Graphene surfaces maintained iPSCs in an undifferentiated state, whereas GO expedited differentiation.
• Both G and GO supported differentiation into ectodermal and mesodermal lineages; G suppressed endodermal differentiation, while GO augmented it.

Conclusions:

• Surface properties of graphene and graphene oxide significantly influence iPSC behavior, including proliferation and lineage-specific differentiation.
• Graphene-based materials offer a promising platform for iPSC culture, with tunable properties for controlling pluripotency and differentiation.
• These findings highlight the potential of engineered nanomaterials for advancing regenerative medicine strategies using iPSCs.