ArticleLeukemia2012
The bone marrow-expressed antimicrobial cationic peptide LL-37 enhances the responsiveness of hematopoietic stem progenitor cells to an SDF-1 gradient and accelerates their engraftment after transplantation.
Article in Leukemia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
What it found
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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.
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.
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Who cites it
48 citing papers in PubMed, 78 citations in OpenAlex.
- Defect in Migration of HSPCs in Nox-2 Deficient Mice Explained by Impaired Activation of Nlrp3 Inflammasome and Impaired Formation of Membrane Lipid Rafts.Stem cell reviews and reports · 2025Article
- External Liver-Derived Complement and Intrinsic Present in Hematopoietic Stem/Progenitor Cells Complosome Modulate Cell Metabolism and Response to Stress.Stem cell reviews and reports · 2023Review
- Role of antimicrobial peptide cathelicidin in thrombosis and thromboinflammation.Frontiers in immunology · 2023Review
- Myeloablative Conditioning for Transplantation Induces State of Sterile Inflammation in the Bone Marrow: Implications for Optimizing Homing and Engraftment of Hematopoietic Stem Cells.Antioxidants & redox signaling · 2022Review
- Regulation of LL-37 in Bone and Periodontium Regeneration.Life (Basel, Switzerland) · 2022Review
- Hematopoiesis and innate immunity: an inseparable couple for good and bad times, bound together by an hormetic relationship.Leukemia · 2022Review
- Endogenous Peptide Inhibitors of HIV Entry.Advances in experimental medicine and biology · 2022Article
- Cathelicidin LL37 Promotes Osteogenic DifferentiationFrontiers in bioengineering and biotechnology · 2021Article
- Article
- Nlrp3 Inflammasome Signaling Regulates the Homing and Engraftment of Hematopoietic Stem Cells (HSPCs) by Enhancing Incorporation of CXCR4 Receptor into Membrane Lipid Rafts.Stem cell reviews and reports · 2020Article
- Innate immunity orchestrates the mobilization and homing of hematopoietic stem/progenitor cells by engaging purinergic signaling-an update.Purinergic signalling · 2020Review
- An Overview of Novel Unconventional Mechanisms of Hematopoietic Development and Regulators of Hematopoiesis - a Roadmap for Future Investigations.Stem cell reviews and reports · 2019Review
- Antimicrobial peptide KR-32 alleviates Escherichia coli K88-induced fatty acid malabsorption by improving expression of fatty acid transporter protein 4 (FATP4)1.Journal of animal science · 2019Article
- The Complement Cascade as a Mediator of Human Malignant Hematopoietic Cell Trafficking.Frontiers in immunology · 2019Article
- Cathelicidin Related Antimicrobial Peptide (CRAMP) Enhances Bone Marrow Cell Retention and Attenuates Cardiac Dysfunction in a Mouse Model of Myocardial Infarction.Stem cell reviews and reports · 2018Article
- Emerging concepts in non-invasive monitoring of Crohn's disease.Therapeutic advances in gastroenterology · 2018Review
- Mouse Bone Marrow Sca-1Infection and immunity · 2017Article
- Valproic acid enforces the priming effect of sphingosine-1 phosphate on human mesenchymal stem cells.International journal of molecular medicine · 2017Article
- Blood on the tracks: hematopoietic stem cell-endothelial cell interactions in homing and engraftment.Journal of molecular medicine (Berlin, Germany) · 2017Review
- Recombinant TAT-BMI-1 fusion protein induces ex vivo expansion of human umbilical cord blood-derived hematopoietic stem cells.Oncotarget · 2017Article
Corrections and comments
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Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
Abstract
We report that the bone marrow (BM) stroma-released LL-37, a member of the cathelicidin family of antimicrobial peptides, primes/increases the responsiveness of murine and human hematopoietic stem/progenitor cells (HSPCs) to an α-chemokine stromal-derived factor-1 (SDF-1) gradient. Accordingly, LL-37 is upregulated in irradiated BM cells and enhances the chemotactic responsiveness of hematopoietic progenitors from all lineages to a low physiological SDF-1 gradient as well as increasing their (i) adhesiveness, (ii) SDF-1-mediated actin polymerization and (iii) MAPK(p42/44) phosphorylation. Mice transplanted with BM cells ex vivo primed by LL-37 showed accelerated recovery of platelet and neutrophil counts by ∼3-5 days compared with mice transplanted with unprimed control cells. These priming effects were not mediated by LL-37 binding to its receptor and depended instead on the incorporation of the CXCR4 receptor into membrane lipid rafts. We propose that LL-37, which has primarily antimicrobial functions and is harmless to mammalian cells, could be clinically applied to accelerate engraftment as an ex vivo priming agent for transplanted human HSPCs. This novel approach would be particularly important in cord blood transplantations, where the number of HSCs available is usually limited.
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Registered trials
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.