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Related Concept Videos

Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...

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Peptide Electrostatic Modulation Directs Human Neural Cell Fate.

Laura Perez-Chirinos1, Xavier Barceló2, M Gabriella Chiariello3

  • 1Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|September 30, 2025
PubMed
Summary
This summary is machine-generated.

Negatively charged supramolecular assemblies promote neural regeneration by enhancing human neural progenitor cell (hNPC) survival and differentiation. This biomaterial design advances regenerative medicine.

Keywords:
charge screeninghuman neural progenitor cellsmembranemolecular dynamicsproteomicsself‐assembliessupramolecular structures

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Area of Science:

  • Biomaterials Science
  • Neuroscience
  • Cell Biology

Background:

  • Supramolecular self-assembled systems offer tunable biomimetic environments for cell regulation.
  • The role of electrostatic properties in these systems for cellular response is not well understood.
  • Understanding these properties is crucial for designing advanced biomaterials.

Purpose of the Study:

  • To investigate the influence of electrostatic properties of supramolecular assemblies on neural regeneration.
  • To systematically analyze how peptide charge affects bioactivity and cellular response.
  • To establish a framework for designing biomaterials with controlled electrostatic profiles.

Main Methods:

  • Designed a peptide library with diverse electrostatic profiles.
  • Utilized computational and experimental methods to optimize self-assembly conditions.
  • Cultured human neural progenitor cells (hNPCs) on these assemblies.

Main Results:

  • Negatively charged supramolecular environments significantly enhanced hNPC survival.
  • These environments promoted neuronal differentiation and lineage commitment.
  • High negative charges activated the MAPK pathway and cell adhesion mechanisms.

Conclusions:

  • Electrostatic properties are critical for modulating cellular behavior in supramolecular assemblies.
  • Negatively charged biomaterials can be designed for effective neural regeneration.
  • This work provides insights into neural microenvironment cues for regenerative medicine applications.