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author Ahrens, Caroline Chopko
Valdez Macias, Jorge Luis
Cook, Christi Dionne
Wang, Alex J-S
Brown, Alexander Thomas
Kumar, Manu Prajapati
Stockdale, Linda
Rothenberg, Daniel Abram
Renggli-Frey, Kasper
Gordon, Elizabeth A
Lauffenburger, Douglas A
Griffith, Linda G
White, Forest M.
author2 Massachusetts Institute of Technology. Biotechnology Process Engineering Center
author_facet Massachusetts Institute of Technology. Biotechnology Process Engineering Center
Ahrens, Caroline Chopko
Valdez Macias, Jorge Luis
Cook, Christi Dionne
Wang, Alex J-S
Brown, Alexander Thomas
Kumar, Manu Prajapati
Stockdale, Linda
Rothenberg, Daniel Abram
Renggli-Frey, Kasper
Gordon, Elizabeth A
Lauffenburger, Douglas A
Griffith, Linda G
White, Forest M.
author_sort Ahrens, Caroline Chopko
collection MIT
description Methods to parse paracrine epithelial-stromal communication networks are a vital need in drug development, as disruption of these networks underlies diseases ranging from cancer to endometriosis. Here, we describe a modular, synthetic, and dissolvable extracellular matrix (MSD-ECM) hydrogel that fosters functional 3D epithelial-stromal co-culture, and that can be dissolved on-demand to recover cells and paracrine signaling proteins intact for subsequent analysis. Specifically, synthetic polymer hydrogels, modified with cell-interacting adhesion motifs and crosslinked with peptides that include a substrate for cell-mediated proteolytic remodeling, can be rapidly dissolved by an engineered version of the microbial transpeptidase Sortase A (SrtA) if the crosslinking peptide includes a SrtA substrate motif and a soluble second substrate. SrtA-mediated dissolution affected only 1 of 31 cytokines and growth factors assayed, whereas standard protease degradation methods destroyed about half of these same molecules. Using co-encapsulated endometrial epithelial and stromal cells as one model system, we show that the dynamic cytokine and growth factor response of co-cultures to an inflammatory cue is richer and more nuanced when measured from SrtA-dissolved gel microenvironments than from the culture supernate. This system employs accessible, reproducible reagents and facile protocols; hence, has potential as a tool in identifying and validating therapeutic targets in complex diseases.
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spelling mit-1721.1/1176332022-10-01T17:37:41Z On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks Ahrens, Caroline Chopko Valdez Macias, Jorge Luis Cook, Christi Dionne Wang, Alex J-S Brown, Alexander Thomas Kumar, Manu Prajapati Stockdale, Linda Rothenberg, Daniel Abram Renggli-Frey, Kasper Gordon, Elizabeth A Lauffenburger, Douglas A Griffith, Linda G White, Forest M. Massachusetts Institute of Technology. Biotechnology Process Engineering Center Massachusetts Institute of Technology. Department of Biological Engineering Massachusetts Institute of Technology. Department of Biology Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Mechanical Engineering Valdez Macias, Jorge Luis Cook, Christi Dionne Wang, Alex J-S Brown, Alexander Thomas Kumar, Manu Prajapati Stockdale, Linda Rothenberg, Daniel Abram Renggli-Frey, Kasper Gordon, Elizabeth A Lauffenburger, Douglas A White, Forest M Griffith, Linda G Methods to parse paracrine epithelial-stromal communication networks are a vital need in drug development, as disruption of these networks underlies diseases ranging from cancer to endometriosis. Here, we describe a modular, synthetic, and dissolvable extracellular matrix (MSD-ECM) hydrogel that fosters functional 3D epithelial-stromal co-culture, and that can be dissolved on-demand to recover cells and paracrine signaling proteins intact for subsequent analysis. Specifically, synthetic polymer hydrogels, modified with cell-interacting adhesion motifs and crosslinked with peptides that include a substrate for cell-mediated proteolytic remodeling, can be rapidly dissolved by an engineered version of the microbial transpeptidase Sortase A (SrtA) if the crosslinking peptide includes a SrtA substrate motif and a soluble second substrate. SrtA-mediated dissolution affected only 1 of 31 cytokines and growth factors assayed, whereas standard protease degradation methods destroyed about half of these same molecules. Using co-encapsulated endometrial epithelial and stromal cells as one model system, we show that the dynamic cytokine and growth factor response of co-cultures to an inflammatory cue is richer and more nuanced when measured from SrtA-dissolved gel microenvironments than from the culture supernate. This system employs accessible, reproducible reagents and facile protocols; hence, has potential as a tool in identifying and validating therapeutic targets in complex diseases. National Institutes of Health (U.S.) (R01EB010246) National Institutes of Health (U.S.) (UH2TR000496) Institute for Collaborative Biotechnologies (W911NF-09-0001) National Institutes of Health (U.S.) (T32GM008334) United States. Defense Advanced Research Projects Agency. Microphysiological Systems Program (W911NF-12-2-0039) John and Karinne Begg Fund Begg New Horizon Fund for Undergraduate Research at MIT Massachusetts Institute of Technology. Biophysical Instrumentation Facility Manton Foundation Ludwig Postdoctoral Fellowship for Cancer Research Swiss National Science Foundation (Postdoctoral Fellowship) 2018-09-05T12:35:06Z 2018-09-05T12:35:06Z 2017-03 2017-03 2018-08-30T17:16:56Z Article http://purl.org/eprint/type/JournalArticle 01429612 http://hdl.handle.net/1721.1/117633 Valdez, Jorge, Christi D. Cook, Caroline Chopko Ahrens, Alex J. Wang, Alexander Brown, Manu Kumar, Linda Stockdale, et al. “On-Demand Dissolution of Modular, Synthetic Extracellular Matrix Reveals Local Epithelial-Stromal Communication Networks.” Biomaterials 130 (June 2017): 90–103. https://orcid.org/0000-0002-6673-087X https://orcid.org/0000-0001-8272-6419 https://orcid.org/0000-0001-6005-6901 https://orcid.org/0000-0001-6718-2265 https://orcid.org/0000-0002-5506-236X https://orcid.org/0000-0002-8106-0640 https://orcid.org/0000-0001-6865-4084 https://orcid.org/0000-0001-8373-1463 https://orcid.org/0000-0002-0050-989X https://orcid.org/0000-0002-1545-1651 https://orcid.org/0000-0002-1801-5548 http://dx.doi.org/10.1016/J.BIOMATERIALS.2017.03.030 Biomaterials Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier BV Elsevier
spellingShingle Ahrens, Caroline Chopko
Valdez Macias, Jorge Luis
Cook, Christi Dionne
Wang, Alex J-S
Brown, Alexander Thomas
Kumar, Manu Prajapati
Stockdale, Linda
Rothenberg, Daniel Abram
Renggli-Frey, Kasper
Gordon, Elizabeth A
Lauffenburger, Douglas A
Griffith, Linda G
White, Forest M.
On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks
title On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks
title_full On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks
title_fullStr On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks
title_full_unstemmed On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks
title_short On-demand dissolution of modular, synthetic extracellular matrix reveals local epithelial-stromal communication networks
title_sort on demand dissolution of modular synthetic extracellular matrix reveals local epithelial stromal communication networks
url http://hdl.handle.net/1721.1/117633
https://orcid.org/0000-0002-6673-087X
https://orcid.org/0000-0001-8272-6419
https://orcid.org/0000-0001-6005-6901
https://orcid.org/0000-0001-6718-2265
https://orcid.org/0000-0002-5506-236X
https://orcid.org/0000-0002-8106-0640
https://orcid.org/0000-0001-6865-4084
https://orcid.org/0000-0001-8373-1463
https://orcid.org/0000-0002-0050-989X
https://orcid.org/0000-0002-1545-1651
https://orcid.org/0000-0002-1801-5548
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