Cited by 101Tissue Engineering and Regenerative MedicineXenotransplantation and immune response3D Printing in Biomedical Research

Genipin crosslinking reduced the immunogenicity of xenogeneic decellularized porcine whole-liver matrices through regulation of immune cell proliferation and polarization

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Wang, Yujia, Bao, Ji, Wu, Xiujuan, Wu, Qiong, Li, Yi, Zhou, Yongjie, Li, Li, Bu, Hong·2016·Scientific Reports

Abstract

Decellularized xenogeneic whole-liver matrices are plausible biomedical materials for the bioengineering of liver transplantation. A common method to reduce the inflammatory potential of xenogeneic matrices is crosslinking. Nevertheless, a comprehensive analysis of the immunogenic features of cross-linked decellularized tissue is still lacking. We aimed to reduce the immunogenicity of decellularized porcine whole-liver matrix through crosslinking with glutaraldehyde or genipin, a new natural agent and investigated the mechanism of the immune-mediated responses. The histologic assessment of the host’s immune reaction activated in response to these scaffolds, as well as the M1/M2 phenotypic polarization profile of macrophages, was studied in vivo. The genipin-fixed scaffold elicited a predominantly M2 phenotype response, while the glutaraldehyde-fixed scaffold resulted in disrupted host tissue remodeling and a mixed macrophage polarization profile. The specific subsets of immune cells involved in the responses to the scaffolds were identified in vitro. Crosslinking alleviated the host response by reducing the proliferation of lymphocytes and their subsets, accompanied by a decreased release of both Th1 and Th2 cytokines. Therefore, we conclude that the natural genipin crosslinking could lower the immunogenic potential of xenogeneic decellularized whole-liver scaffolds.

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  • Genipin and carbodiimide have been utilized as biocompatible crosslinking agents, but achieving high effectiveness comparable to GA remains unresolved.

    “genipin19 and carbodiimide20 have also been utilized as biocompatible crosslinking agents, but achieving high effectiveness comparable to the effectiveness of GA remains unresolved.”

    From Bioengineered liver crosslinked with nano-graphene oxide enables efficient liver regeneration via MMP suppression and immunomodulation (2023) · cites this paper as [19]

    The paper’s introductory passage (page unavailable) describes genipin as a crosslinking substitute for glutaraldehyde and reports better in vivo biocompatibility for genipin-treated grafts. It does not say that achieving crosslinking effectiveness comparable to glutaraldehyde remains unresolved. Carbodiimide is attached to a separate citation in the citing sentence, so it is not assessed here. (LLM, conf=0.86)

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  • Comparative preclinical studies on porcine decellularized esophagus and liver demonstrated that genipin-treated scaffolds induced a shift in infiltrating macrophages toward the M2 subtype and decreased the number of infiltrating pan-macrophages upon implantation into rats, unlike GA-processed dECM.

    “Comparative preclinical studies on porcine decellularized esophagus and liver demonstrated that despite GA-processed dECM, genipin-treated scaffolds induced a shift in infiltrating macrophages toward the M2 subtype and decreased the number of infiltrating pan-macrophages upon their implantation into rats [207, 208].”

    From Immunogenicity of decellularized extracellular matrix scaffolds: a bottleneck in tissue engineering and regenerative medicine (2023) · cites this paper as [208]

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  • Decellularization has demonstrated efficient capability in removing or reducing the alpha-gal content from porcine liver.

    “Decellularization has demonstrated efficient capability in removing or reducing the alpha-gal content from porcine liver [[67], [68], [69]].”
  • Genipin cross-linking showed non-significant suppressive effects on the viability of primary hepatocytes and endothelial cells, unlike glutaraldehyde cross-linking, which displayed significant cytotoxicity.

    “Genipin cross-linking showed non-significant suppressive effects on the viability of primary hepatocytes and endothelial cells, unlike glutaraldehyde cross-linking, which displayed significant cytotoxicity.”
  • Wang et al. used genipin for porcine liver cross-linking following perfusion decellularization with 1% Triton X-100 and 1% SDS.

    “Wang et al. used genipin, a naturally occurring cross-linking agent, for porcine liver cross-linking following perfusion decellularization with 1 % Triton X-100 and 1 % SDS [69].”

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  1. Huang L. L., Sung H. W., Tsai C. C. & Huang D. M. Biocompatibility study of a biological tissue fixed with a naturally occurring crosslinking reagent. J. Biomed. Mater. Res. 42, 568– 576 (1998). 9827681

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Authors
Wang, Y., Bao, J., Wu, X., Wu, Q., Li, Y., Zhou, Y., Li, L., & Bu, H.
Affiliations
Sichuan University (CN)
Corresponding author
Bu, Hong
Venue
Scientific Reports
Published
2016-04-21
Volume
6
Issue
1
Pages
24779-24779
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2341478524
Cited by
101
References
48
Citations by year
2026: 1 · 2025: 10 · 2024: 4 · 2023: 11 · 2022: 6 · 2021: 18 · 2020: 13 · 2019: 15 · 2018: 15 · 2017: 5 · 2016: 3
FWCI
14.03
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Novartis
  • Novartis Pharma
Topics
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Health Sciences › Medicine › Surgery › Xenotransplantation and immune response
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
Keywords
genipin crosslinking, glutaraldehyde crosslinking, immunogenicity, macrophage polarization, M2 macrophages, lymphocyte proliferation, Th1/Th2 cytokines, host immune response, tissue remodeling
MeSH terms
Animals, Biocompatible Materials, Extracellular Matrix, T-Lymphocytes, Helper-Inducer, Humans, Immune System, Leukocytes, Mononuclear, Liver, Macrophages, Swine, Liver Transplantation, Cytokines, Coculture Techniques, Tissue Engineering, Iridoids, Cell Proliferation, Tissue Scaffolds, Allografts, Heterografts

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