Comprehensive characterization of the human pancreatic proteome for bioengineering applications

Amish Asthana, Riccardo Tamburrini, Deborah Chaimov, Carlo Gazia, Stephen J. Walker, Mark Van Dyke, Alice Tomei, Sandrine Lablanche, John Robertson, Emmanuel C. Opara, Shay Soker, Giuseppe Orlando

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Interactions between the pancreatic extracellular matrix (ECM) and islet cells are known to regulate multiple aspects of islet physiology, including survival, proliferation, and glucose-stimulated insulin secretion. Recognizing the essential role of ECM in islet survival and function, various engineering approaches have been developed that aim to utilize ECM-based materials to recreate a native-like microenvironment. However, a major impediment to the success of these approaches has been the lack of a robust and comprehensive characterization of the human pancreatic proteome. Herein, by combining mass spectrometry (MS) and multiplex ELISA, we have provided an improved workflow for the in-depth profiling of the proteome, including minor constituents that are generally underrepresented. Moreover, we have further validated the effectiveness of our detergent-free decellularization protocol in the removal of cellular proteins and retention of the matrisome. It has also been established that the decellularized ECM and its derivatives can provide more tissue-specific cues than traditionally used biological scaffolds and are therefore more physiologically relevant for the development of hydrogels, bioinks and medium additives, in order to create a pancreatic niche. The data generated in this study would contribute significantly to the efforts of comprehensively defining the ECM atlas and also serve as a standard for the human pancreatic proteome to provide further guidance for design and engineering strategies for improved tissue engineering scaffolds.

Original languageEnglish (US)
Article number120613
JournalBiomaterials
Volume270
DOIs
StatePublished - Mar 2021

Keywords

  • Decellularization
  • Extracellular matrix
  • Human pancreas
  • Mass spectrometry
  • Matrisome
  • Proteomics

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Ceramics and Composites
  • Biomaterials
  • Mechanics of Materials

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