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research article

Morphogenesis Guided by 3D Patterning of Growth Factors in Biological Matrices

Broguiere, Nicolas  
•
Luchtefeld, Ines
•
Trachsel, Lucca
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May 11, 2020
Advanced Materials

Three-dimensional (3D) control over the placement of bioactive cues is fundamental to understand cell guidance and develop engineered tissues. Two-photon patterning (2PP) provides such placement at micro- to millimeter scale, but nonspecific interactions between proteins and functionalized extracellular matrices (ECMs) restrict its use. Here, a 2PP system based on nonfouling hydrophilic photocages and Sortase A (SA)-based enzymatic coupling is presented, which offers unprecedented orthogonality and signal-to-noise ratio in both inert hydrogels and complex mammalian matrices. Improved photocaged peptide synthesis and protein functionalization protocols with broad applicability are introduced. Importantly, the method enables 2PP in a single step in the presence of fragile biomolecules and cells, and is compatible with time-controlled growth factor presentation. As a corollary, the guidance of axons through 3D-patterned nerve growth factor (NGF) within brain-mimetic ECMs is demonstrated. The approach allows for the interrogation of the role of complex signaling molecules in 3D matrices, thus helping to better understand biological guidance in tissue development and regeneration.

  • Details
  • Metrics
Type
research article
DOI
10.1002/adma.201908299
Web of Science ID

WOS:000531344600001

Author(s)
Broguiere, Nicolas  
Luchtefeld, Ines
Trachsel, Lucca
Mazunin, Dmitry
Rizzo, Riccardo
Bode, Jeffrey W.
Lutolf, Matthias P.  
Zenobi-Wong, Marcy
Date Issued

2020-05-11

Publisher

Wiley-V C H Verlag Gmbh

Published in
Advanced Materials
Article Number

1908299

Subjects

Chemistry, Multidisciplinary

•

Chemistry, Physical

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Nanoscience & Nanotechnology

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Materials Science, Multidisciplinary

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Physics, Applied

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Physics, Condensed Matter

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Chemistry

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Science & Technology - Other Topics

•

Materials Science

•

Physics

•

axon guidance

•

hydrogels

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photocages

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protein functionalization

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two-photon patterning

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nerve growth

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photodegradable hydrogels

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proteins

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release

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photocleavage

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derivatives

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peptides

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cells

•

acids

•

tool

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
UPLUT  
Available on Infoscience
May 23, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/168893
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