Evidence map›Paper›PMID 31855625›Full record

ArticleBiomaterials2020

Chemical functionality of multidomain peptide hydrogels governs early host immune response.

Tania L Lopez-Silva, David G Leach, Alon Azares, I-Che Li, Darren G Woodside, Jeffrey D Hartgerink

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
5.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 134 citations in OpenAlex.

  1. Article
  2. Article
  3. Tissue-bioelectronics interfaces.Chemical Society reviews · 2026
    Review
  4. A multidomain peptide hydrogel-liposome composite for controlled release of a cyclic dinucleotide in oral cancer.Journal of controlled release : official journal of the Controlled Release Society · 2026
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Research Progress on Biomaterials with Immunomodulatory Effects in Bone Regeneration.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Innovative Hydrogel Design: Tailoring Immunomodulation for Optimal Chronic Wound Recovery.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  20. Article

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Tania L Lopez-SilvaDepartment of Chemistry, Rice University, Houston, TX, 77005, USA.
David G LeachDepartment of Chemistry, Rice University, Houston, TX, 77005, USA.
Alon AzaresDepartment of Molecular Cardiology, Texas Heart Institute, Houston, TX, 77030, USA.
I-Che LiDepartment of Chemistry, Rice University, Houston, TX, 77005, USA.
Darren G WoodsideDepartment of Molecular Cardiology, Texas Heart Institute, Houston, TX, 77030, USA.
Jeffrey D HartgerinkDepartment of Chemistry, Rice University, Houston, TX, 77005, USA; Department of Bioengineering, Rice University, Houston, TX, 77005, USA. Electronic address: jdh@rice.edu.
Rice University · US

Funding

Self-assembling Peptide Nanofiber Hydrogels for Nerve RegenerationR01DE021798 · NIDCR · RICE UNIVERSITY · PI HARTGERINK, JEFFREY DALE · 2012 to 2021
$3.7M
NIDCR NIH HHS R01 DE021798
6 · The paper itself

Abstract

Multidomain Peptide (MDP) hydrogels are nanofibrous materials with many potential biomedical applications. The peptide sequence design of these materials offers high versatility and allows for the incorporation of various chemical functionalities into the nanofibrous scaffold. It is known that host response to biomaterials is strongly affected by factors such as size, shape, stiffness, and chemistry. However, there is a lack of fundamental understanding of the host response to different MDP hydrogels. In particular, it is unknown what effect the chemical functionality displayed on the nanofiber has on biological activity. Here we evaluated the early inflammatory host response to four MDP hydrogels displaying amines, guanidinium ions, and carboxylates in a subcutaneous injection model. While all the studied peptide materials possess similar nanostructure and physical properties, they trigger markedly different inflammatory responses. These were characterized by immunophenotyping of the cellular infiltrate using multi-color flow cytometry. The negatively-charged peptides elicit minimal inflammation characterized by tissue-resident macrophage infiltration, fast remodeling, and no collagen deposition or blood vessel formation within the implants. In contrast, the positively-charged peptides are highly infiltrated by immune cells, are remodeled at a slower rate, promote angiogenesis, and result in a high degree of collagen deposition. The presence of dynamic cell phenotypes characterizes the inflammation caused by the lysine-based peptide, including inflammatory monocytes, macrophages, and lymphoid cells, which is seen to be resolving over time. The arginine-based hydrogel shows higher inflammatory response with a persistent and significant infiltration of polymorphonuclear myeloid-derived cells, even ten days after implantation. This understanding of the immune response to peptide biomaterials improves our ability to design effective materials and to tailor their use for specific biomedical applications.

Indexed as

HydrogelsNanofibersBiocompatible MaterialsImmunityPeptidesBiocompatible MaterialsHydrogelsPeptidesHost responseHydrogelImmune responseInflammationNanofiberPeptide

Identifiers

PMID31855625
PMCPMC7049098
OpenAlexW2993437868

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.