Cited by 38Antimicrobial Peptides and ActivitiesRNA Interference and Gene DeliveryTissue Engineering and Regenerative Medicine

Genetically engineered distal airway stem cell transplantation protects mice from pulmonary infection

Open access
Zhou, Yue‐qing, Shi, Yun, Yang, Ling, Sun, Yu‐fen, Han, Yu‐fei, Zhao, Zi‐xian, Wang, Yu‐jia, Liu, Ying +9 more·2020·EMBO Molecular Medicine

Abstract

Severe pulmonary infection is a major threat to human health accompanied by substantial medical costs, prolonged inpatient requirements, and high mortality rates. New antimicrobial therapeutic strategies are urgently required to address the emergence of antibiotic resistance and persistent bacterial infections. In this study, we show that the constitutive expression of a native antimicrobial peptide LL‐37 in transgenic mice aids in clearing Pseudomonas aeruginosa (PAO1), a major pathogen of clinical pulmonary infection. Orthotopic transplantation of adult mouse distal airway stem cells (DASCs), genetically engineered to express LL‐37, into injured mouse lung foci enabled large‐scale incorporation of cells and long‐term release of the host defense peptide, protecting the mice from bacterial pneumonia and hypoxemia. Further, correlates of DASCs in adult humans were isolated, expanded, and genetically engineered to demonstrate successful construction of an anti‐infective artificial lung. Together, our stem cell‐based gene delivery therapeutic platform proposes a new strategy for addressing recurrent pulmonary infections with future translational opportunities.

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  • The antibacterial peptide LL-37 from humans has broad-spectrum antibacterial activity by increasing the membrane permeability of bacteria, neutralizing endotoxins, and suppressing the production of proinflammatory factors.

    “The antibacterial peptide LL-37 from humans was found to have broad-spectrum antibacterial activity31–34 by increasing the membrane permeability of bacteria, neutralizing endotoxins, and suppressing the production of proinflammatory factors.35”

    From Identification of heptapeptides targeting a lethal bacterial strain in septic mice through an integrative approach (2022) · cites this paper as [32]

    The Introduction says human LL-37 has broad bactericidal activity against Gram-negative and Gram-positive bacteria. The Results report lower IL-6 and IL-1β mRNA in infected LL-37 transgenic mouse lungs, but do not establish that LL-37 directly suppresses their production. Neither the Introduction nor the retrieved Results and Discussion passages establish increased bacterial membrane permeability or endotoxin neutralization as mechanisms. (LLM, conf=0.86)

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Authors
Zhou, Y., Shi, Y., Yang, L., Sun, Y., Han, Y., Zhao, Z., Wang, Y., Liu, Y., Ma, Y., Zhang, T., Ren, T., Dale, T. P., Forsyth, N. R., Jin, F., Qu, J., Zuo, W., & Xu, J.
Affiliations
  • Tongji University (CN)
  • Regend Therapeutics (China) (CN)
  • Keele University (GB)
Corresponding author
  • Zuo, Wei
  • Xu, Jin‐fu
Venue
EMBO Molecular Medicine
Published
2019-11-29
Volume
12
Issue
1
Pages
e10233-e10233
ISSN
  • 1757-4676 (ISSN-L)
  • 1757-4684
OpenAlex
W2990637450
Cited by
37
References
48
Citations by year
2025: 7 · 2024: 7 · 2023: 8 · 2022: 7 · 2021: 4 · 2020: 3 · 2019: 1
FWCI
2.75
Type
journal article
Language
en
Open access
Locations
  • EMBO Molecular Medicine (publishedVersion, cc-by-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Keele Research Repository (Keele University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Key Research Program (2017YFA0104600)
  • The National Science Fund for Distinguished Young Scholars (81925001)
  • Shanghai Leading Talent Program (2016036)
  • Key Project of Fundamental Research Funds for the Central Universities (2017ZD002)
  • Project of the Shanghai Hospital Development Center (16CR3036A)
  • Youth 1000 Talent Plan of China
  • Tongji University Basic Scientific Research‐Interdisciplinary Fund and 985 Grant
  • Shanghai Pulmonary Hospital Annual Grant
  • National Science Foundation of China (81770073, NSFC81630001, 81670006, 81570091, 81600003)
Topics
  • Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
LL-37, antimicrobial peptides, Pseudomonas aeruginosa, bacterial pneumonia, stem cell transplantation, transgenic mice, gene delivery, artificial lung, hypoxemia, lung injury, antibiotic resistance, pulmonary infection
MeSH terms
Animals, Escherichia coli, Female, Lung Diseases, Male, Mice, Inbred C57BL, Mice, Transgenic, Pseudomonas aeruginosa, Pseudomonas Infections, Rats, Sprague-Dawley, Antimicrobial Cationic Peptides, Stem Cell Transplantation, Mice, Rats, Cathelicidins

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