Evidence map›Paper›PMID 27207796›Full record

ArticleBlood2016

Human neutrophil peptides inhibit cleavage of von Willebrand factor by ADAMTS13: a potential link of inflammation to TTP.

Vikram G Pillai, Jialing Bao, Catherine B Zander, Jenny K McDaniel, Palaniappan S Chetty, Steven H Seeholzer, Khalil Bdeir, Douglas B Cines, X Long Zheng

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

46 citing papers in PubMed, 76 citations in OpenAlex.

  1. Biological attributes of zinc-dependent endopeptidases in endothelial dysfunction associated with sepsis: a narrative review.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
  2. Article
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  8. The Phenomenon of Thrombotic Microangiopathy in Cancer Patients.International journal of molecular sciences · 2024
    Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Mechanisms of ADAMTS13 regulation.Journal of thrombosis and haemostasis : JTH · 2022
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. CanineBiology · 2021
    Article
  20. Article
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

9 authors at 4 institutions in 1 country.

Vikram G PillaiDivision of Laboratory Medicine, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL;
Jialing BaoDepartment of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA;
Catherine B ZanderDivision of Laboratory Medicine, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL;
Jenny K McDanielDivision of Pediatric Hematology/Oncology, Children's Hospital of Alabama, Birmingham, AL; and.
Palaniappan S ChettyDepartment of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA;
Steven H SeeholzerDepartment of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA;
Khalil BdeirDepartment of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Douglas B CinesDepartment of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.ORCID 0000-0001-5986-504X
X Long ZhengDivision of Laboratory Medicine, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL;ORCID 0000-0003-1680-5295
Children's Hospital of Philadelphia · USUniversity of Alabama at Birmingham · USUniversity of Pennsylvania · USChildren's of Alabama · US

Funding

Pathogenesis of Thrombotic MicroangiopathyR01HL126724 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ZHENG, X. LONG · 2015 to 2018
$1.8M
Novel Therapeutics for Acquired Thrombotic Thrombocytopenic PurpuraR01HL144552 · NHLBI · UNIVERSITY OF KANSAS MEDICAL CENTER · PI ZHENG, X. LONG · 2019 to 2022
$1.8M
Novel Therapeutics for Acquired Thrombotic Thrombocytopenic PurpuraR01HL115187 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI ZHENG, X. LONG · 2013 to 2016
$1.6M
Developmental endothelial locus-1 (Del-1) is a hemostatic factor in thrombotic strokeR21NS091793 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI BDEIR, KHALIL · 2015 to 2016
$440k
Alpha-Defensins in perioperative thrombosisR56HL123912 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI HIGAZI, ABD ALROOF, WEISEL, JOHN W · 2014 to 2014
$400k
NHLBI NIH HHS R01 HL115187NHLBI NIH HHS R01 HL126724NHLBI NIH HHS R01 HL144552NHLBI NIH HHS R56 HL123912NINDS NIH HHS R21 NS091793
6 · The paper itself

Abstract

Infection or inflammation may precede and trigger formation of microvascular thrombosis in patients with acquired thrombotic thrombocytopenic purpura (TTP). However, the mechanism underlying this clinical observation is not fully understood. Here, we show that human neutrophil peptides (HNPs) released from activated and degranulated neutrophils inhibit proteolytic cleavage of von Willebrand factor (VWF) by ADAMTS13 in a concentration-dependent manner. Half-maximal inhibitory concentrations of native HNPs toward ADAMTS13-mediated proteolysis of peptidyl VWF73 and multimeric VWF are 3.5 μM and 45 μM, respectively. Inhibitory activity of HNPs depends on the RRY motif that is shared by the spacer domain of ADAMTS13. Native HNPs bind to VWF73 (KD = 0.72 μM), soluble VWF (KD = 0.58 μM), and ultra-large VWF on endothelial cells. Enzyme-linked immunosorbent assay (ELISA) demonstrates markedly increased plasma HNPs1-3 in most patients with acquired autoimmune TTP at presentation (median, ∼170 ng/mL; range, 58-3570; n = 19) compared with healthy controls (median, ∼23 ng/mL; range, 6-44; n = 18) (P < .0001). Liquid chromatography plus tandem mass spectrometry (LC-MS/MS) reveals statistically significant increases of HNP1, HNP2, and HNP3 in patient samples (all P values <.001). There is a good correlation between measurement of HNPs1-3 by ELISA and by LC-MS/MS (Spearman ρ = 0.7932, P < .0001). Together, these results demonstrate that HNPs1-3 may be potent inhibitors of ADAMTS13 activity, likely by binding to the central A2 domain of VWF and physically blocking ADAMTS13 binding. Our findings may provide a novel link between inflammation/infection and the onset of microvascular thrombosis in acquired TTP and potentially other immune thrombotic disorders.

Indexed as

ProteolysisADAMTS13 ProteinAmino Acid MotifsDefensinsFemaleHumansInflammationMaleNeutrophilsPurpura, Thrombotic Thrombocytopenicvon Willebrand FactorADAMTS13 ProteinADAMTS13 protein, humanDefensinsvon Willebrand Factor

Identifiers

PMID27207796
PMCPMC4937355
OpenAlexW2353282499

What OpenQuestion holds

Textmetadata
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Registered trials

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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.