The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.
The Cathelicidin Anti-Microbial Peptide LL-37 is Involved in Re-Epithelialization of Human Skin Wounds and is Lacking in Chronic Ulcer Epithelium
Open accessAbstract
The human cathelicidin anti-microbial protein, hCAP18 is a component of the innate immune system and has broad anti-microbial activity conferred by its C-terminal fragment LL-37. hCAP18 is constitutively produced in leukocytes and is induced in barrier organs upon inflammation and infection. We demonstrate here a novel role for this peptide in re-epithelialization of skin wounds. We show that high levels of hCAP18 are produced in skin in vivo upon wounding. The highest hCAP18 levels are attained at 48 h post-injury, declining to pre-injury levels upon wound closure. hCAP18 is detected in the inflammatory infiltrate and in the epithelium migrating over the wound bed. In chronic ulcers, however, hCAP18 levels are low and immunoreactivity for hCAP18/LL-37 is absent in ulcer edge epithelium. Using a noninflammatory ex vivo wound healing model, composed of organ-cultured human skin, we show that hCAP18 is strongly expressed in healing skin epithelium, and that treatment with antibodies raised and affinity purified against LL-37, inhibits re-epithelialization in a concentration-dependent manner. Immunoreactivity for the proliferation marker Ki67 is absent in the epithelium of such inhibited wounds, suggesting that LL-37 may play a part in epithelial cell proliferation. Thus, we suggest that, in addition to being an anti-microbial peptide, LL-37 also plays a part in wound closure and that its reduction in chronic wounds impairs re-epithelialization and may contribute to their failure to heal.
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“Abnormal or dysfunctional AMP production has been associated with susceptibility to microbial infections and several other cutaneous diseases, including nonhealing wounds.29”
From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [29]
In the citing paper
“Wound fluids and skin wounds show elevated levels of cathelicidin expression in keratinocytes and other immune cells, reaching a maximum at 48 h.29”
From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [29]
In the citing paper
“Using a noninflammatory ex vivo wound healing model comprising organ-cultured human skin, it has been shown that hCAP18 is strongly expressed in healing skin epithelium and that treatment with affinity-purified antibodies raised against LL-37 inhibits reepithelialization in a concentration-dependent manner.29”
From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [29]
In the citing paper
“Cathelicidin is low in venous leg ulcers and absent at the margin of other nonhealing wounds.29”
From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [29]
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Cites
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Innate antimicrobial peptide protects the skin from invasive bacterial infection
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Human β-Defensin-1 Is a Salt-Sensitive Antibiotic in Lung That Is Inactivated in Cystic Fibrosis
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Analysis of the acute and chronic wound environments: the role of proteases and their inhibitors
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Plasmacytoid dendritic cells sense self-DNA coupled with antimicrobial peptide
Lande, R., Gregorio, J., Facchinetti, V., Chatterjee, B., Wang, Y.-H., Homey, B., Cao, W., Wang, Y.-H., Su, B., Nestle, F. O., et al. (2007) · Nature · doi:10.1038/nature06116 · Cited by 1,910
Cutting Edge: 1,25-Dihydroxyvitamin D3 Is a Direct Inducer of Antimicrobial Peptide Gene Expression
Wang, T. T., Nestel, F. P., Bourdeau, V., Nagai, Y., Wang, Q., Liao, J. L., Tavera-Mendoza, L. E., Lin, R., Hanrahan, J. W., Mader, S., et al. (2004) · The Journal of Immunology · doi:10.4049/jimmunol.173.5.2909 · Cited by 1,661
Epithelialization in Wound Healing: A Comprehensive Review
Pastar, I., Stojadinović, O., Yin, N. C., Ramirez, H. A., Nusbaum, A. G., Sawaya, A. P., Patel, S. B., Khalid, L., Isseroff, R. R., & Tomic‐Canic, M. (2014) · Advances in Wound Care · doi:10.1089/wound.2013.0473 · Cited by 1,604
Antimicrobial host defence peptides: functions and clinical potential
Mookherjee, N., Anderson, M. A., Haagsman, H. P., & Davidson, D. J. (2020) · Nature Reviews Drug Discovery · doi:10.1038/s41573-019-0058-8 · Cited by 1,502
AMPed up immunity: how antimicrobial peptides have multiple roles in immune defense
Lai, Y., & Gallo, R. L. (2009) · Trends in Immunology · doi:10.1016/j.it.2008.12.003 · Cited by 1,322
Metadata
- Authors
- Heilborn, J. D., Nilsson, M. F., Sørensen, O., Ståhle-Bäckdahl, M., Kratz, G., Weber, G., & Borregaard, N.
- Affiliations
- Karolinska Institutet (SE)
- Rigshospitalet (DK)
- Venue
- Journal of Investigative Dermatology
- Publisher
- Elsevier BV
- Published
- 2003-03
- Volume
- 120
- Issue
- 3
- Pages
- 379-389
- ISSN
- 0022-202X (ISSN-L)
- OpenAlex
- W2072432297
- Cited by
- 572
- References
- 44
- Citations by year
- 2026: 16 · 2025: 13 · 2024: 15 · 2023: 22 · 2022: 19 · 2021: 28 · 2020: 17 · 2019: 15 · 2018: 21 · 2017: 28 · 2016: 28 · 2015: 25 · 2014: 25 · 2013: 33 · 2012: 39
- FWCI
- 24.02
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Investigative Dermatology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Wound Healing and Treatments
- Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › S100 Proteins and Annexins
- Keywords
- LL-37, cathelicidin, hCAP18, re-epithelialization, skin wound healing, chronic wounds, chronic ulcers, epithelial cell proliferation, Ki-67, innate immunity, antimicrobial peptides, antibody inhibition
- MeSH terms
- Antibodies, Bacillus megaterium, Chronic Disease, Dose-Response Relationship, Drug, Epithelium, Humans, Immune Sera, Leg Ulcer, Organ Culture Techniques, Skin, Wound Healing, Wounds, Penetrating, Keratinocytes, Ki-67 Antigen, Antimicrobial Cationic Peptides, Cathelicidins
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