Cited by 89Tissue Engineering and Regenerative Medicine3D Printing in Biomedical ResearchHydrogels: synthesis, properties, applications

Influence of pH on Extracellular Matrix Preservation During Lung Decellularization

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Tsuchiya, Tomoshi, Balestrini, Jenna L., Mendez, Julio, Calle, Elizabeth A., Zhao, Liping, Niklason, Laura E.·2014·Tissue Engineering Part C: Methods

Abstract

The creation of decellularized organs for use in regenerative medicine requires the preservation of the organ extracellular matrix (ECM) as a means to provide critical cues for differentiation and migration of cells that are seeded onto the organ scaffold. The purpose of this study was to assess the influence of varying pH levels on the preservation of key ECM components during the decellularization of rat lungs. Herein, we show that the pH of the 3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonate (CHAPS)-based decellularization solution influences ECM retention, cell removal, and also the potential for host response upon implantation of acellular lung tissue. The preservation of ECM components, including elastin, fibronectin, and laminin, were better retained in the lower pH conditions that were tested (pH ranges tested: 8, 10, 12); glycosaminoglycans were preserved to a higher extent in the lower pH groups as well. The DNA content following decellularization of the rat lung was inversely correlated with the pH of the decellularization solution. Despite detectible levels of cyotoskeletal proteins and significant residual DNA, tissues decellularized at pH 8 demonstrated the greatest tissue architecture maintenance and the least induction of host response of all acellular conditions. These results highlight the effect of pH on the results obtained by organ decellularization and suggest that altering the pH of the solutions used for decellularization may influence the ability of cells to properly differentiate and home to appropriate locations within the scaffold, based on the preservation of key ECM components and implantation results.

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Crossref · 10.1089/ten.tec.2013.0492

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Authors
Tsuchiya, T., Balestrini, J. L., Mendez, J., Calle, E. A., Zhao, L., & Niklason, L. E.
Affiliations
Yale University (US)
Corresponding author
Niklason, Laura E.
Venue
Tissue Engineering Part C: Methods
Published
2014-12
Volume
20
Issue
12
Pages
1028-1036
ISSN
  • 1937-3384 (ISSN-L)
  • 1937-3392
OpenAlex
W2084112522
Cited by
89
References
34
Citations by year
2026: 4 · 2025: 11 · 2024: 10 · 2023: 8 · 2022: 5 · 2021: 5 · 2020: 6 · 2019: 5 · 2018: 5 · 2017: 7 · 2016: 6 · 2015: 15 · 2014: 2
FWCI
9.92
Type
journal article
Language
en
Open access
Locations
  • Tissue Engineering Part C Methods (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
  • Nagasaki University's Academic Output SITE (Nagasaki University) (submittedVersion, cc-by-nc-nd)
Funders
  • National Heart, Lung, and Blood Institute (R01HL098220, U01HL111016)
  • National Institute of General Medical Sciences (T32GM086287)
Topics
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
Keywords
extracellular matrix preservation, pH, CHAPS, elastin, fibronectin, laminin, glycosaminoglycans, residual DNA, host response, tissue structure, rat lung, regenerative medicine
MeSH terms
Animals, Cholic Acids, Collagen, Elastin, Extracellular Matrix, Fibronectins, Glycosaminoglycans, Hydrogen-Ion Concentration, Laminin, Lung, Male, Rats, Sprague-Dawley, Implants, Experimental, Tissue Engineering, Subcutaneous Tissue

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