Evidence map›Paper›PMID 35977099›Full record

ArticleBlood advances2022

Lymphatic coagulation and neutrophil extracellular traps in lung-draining lymph nodes of COVID-19 decedents.

Margo E MacDonald, Rachel K Weathered, Emma C Stewart, Alexandra I Magold, Anish Mukherjee, Sandeep Gurbuxani, Heather Smith, Phillip McMullen, Jeffrey Mueller, Aliya N Husain and 10 more

Open access · goldAbstract read
In one paragraph

Article in Blood advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Lung Lymphatics in Edema, Inflammation, and Thrombosis.Arteriosclerosis, thrombosis, and vascular biology · 2025
    Review
  3. Role of the Chest Wall in Newborn Respiratory Function at Birth.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
  4. Collecting lymphatics unzip to drain injured lungs.Nature cardiovascular research · 2025
    Article
  5. From defense to disease: the multifaceted role of lymphatics during infection.Journal of immunology (Baltimore, Md. : 1950) · 2025
    Review
  6. Article
  7. Viruses · 2025
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
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

20 authors at 1 institution in 1 country.

Margo E MacDonaldPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.ORCID 0000-0002-2279-9971
Rachel K WeatheredPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.
Emma C StewartPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.
Alexandra I MagoldPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.
Anish MukherjeePritzker School for Molecular Engineering, University of Chicago, Chicago, IL.ORCID 0000-0003-0384-1625
Sandeep GurbuxaniDepartment of Pathology, University of Chicago, Chicago, IL.ORCID 0000-0003-0716-8730
Heather SmithDepartment of Pathology, University of Chicago, Chicago, IL.
Phillip McMullenDepartment of Pathology, University of Chicago, Chicago, IL.
Jeffrey MuellerDepartment of Pathology, University of Chicago, Chicago, IL.
Aliya N HusainDepartment of Pathology, University of Chicago, Chicago, IL.
Calixto M SallesPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.
Priscilla S BriquezPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.ORCID 0000-0002-4680-9636
Sherin J RouhaniDepartment of Medicine, University of Chicago, Chicago, IL.
Jovian YuDepartment of Medicine, University of Chicago, Chicago, IL.
Jonathan TrujilloDepartment of Medicine, University of Chicago, Chicago, IL.
Athalia R PyzerDepartment of Medicine, University of Chicago, Chicago, IL.ORCID 0000-0002-0506-1887
Thomas F GajewskiCommittee on Immunology, University of Chicago, Chicago, IL.
Anne I SperlingCommittee on Immunology, University of Chicago, Chicago, IL.ORCID 0000-0002-4265-9212
Witold W KilarskiPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.ORCID 0000-0003-0734-4749
Melody A SwartzPritzker School for Molecular Engineering, University of Chicago, Chicago, IL.
University of Chicago · US

Funding

VIRAL ONCOLOGY CORE FACILITYP30CA014599 · NCI · UNIVERSITY OF CHICAGO · PI MARK W. LINGEN · 1985 to 2026
$122.1M
INTERDISCIPLINARY TRAINING PROGRAM IN IMMUNOLOGYT32AI007090 · NIAID · UNIVERSITY OF CHICAGO · PI Peter Aidan Savage · 1985 to 2026
$11.7M
Developing an Oncology Workforce for the 21st Century - Renewal 01K12CA139160 · NCI · UNIVERSITY OF CHICAGO · PI OLOPADE, OLUFUNMILAYO F., SMITH, SONALI · 2010 to 2024
$10.6M
Project-003U19AI162310 · NIAID · UNIVERSITY OF CHICAGO · PI Marcelo A. Nobrega · 2021 to 2026
$10.6M
Graduate Program in Biophysical Sciences at the University of Chicago - Renewal 0T32EB009412 · NIBIB · UNIVERSITY OF CHICAGO · PI ENGEL, GREGORY S, SOSNICK, TOBIN R · 2009 to 2023
$4.9M
Probing cellular, molecular and biomechanical barriers to immunotherapy in the tumor microenvironment with organotypic in vitro models of the tumor-lympho-immune interfaceR01CA253248 · NCI · UNIVERSITY OF CHICAGO · PI SWARTZ, MELODY ANN · 2021 to 2025
$2.8M
Paradoxical roles of tumor lymphangiogenesis on tumor immunity and implications for immunotherapy - Resubmission 01R01CA219304 · NCI · UNIVERSITY OF CHICAGO · PI SWARTZ, MELODY ANN · 2018 to 2022
$1.8M
Neutrophil Extracellular Traps and the Intersection of the Immune and Biophysical MicroenvironmentsF31CA257763 · NCI · UNIVERSITY OF CHICAGO · PI MACDONALD, MARGO · 2021 to 2023
$140k
NCI NIH HHS F31 CA257763NCI NIH HHS K12 CA139160NCI NIH HHS P30 CA014599NCI NIH HHS R01 CA219304NCI NIH HHS R01 CA253248NIAID NIH HHS T32 AI007090NIAID NIH HHS U19 AI162310NIBIB NIH HHS T32 EB009412
6 · The paper itself

Abstract

Clinical manifestations of severe COVID-19 include coagulopathies that are exacerbated by the formation of neutrophil extracellular traps (NETs). Here, we report that pulmonary lymphatic vessels, which traffic neutrophils and other immune cells to the lung-draining lymph node (LDLN), can also be blocked by fibrin clots in severe COVID-19. Immunostained tissue sections from COVID-19 decedents revealed widespread lymphatic clotting not only in the lung but also in the LDLN, where the extent of clotting correlated with the presence of abnormal, regressed, or missing germinal centers (GCs). It strongly correlated with the presence of intralymphatic NETs. In mice, tumor necrosis factor α induced intralymphatic fibrin clots; this could be inhibited by DNase I, which degrades NETs. In vitro, TNF-α induced lymphatic endothelial cell upregulation of ICAM-1 and CXCL8, among other neutrophil-recruiting factors, as well as thrombomodulin downregulation; in decedents, lymphatic clotting in LDLNs. In a separate cohort of hospitalized patients, serum levels of Myeloperoxidase-DNA (MPO-DNA, a NET marker) inversely correlated with antiviral antibody titers, but D-dimer levels, indicative of blood thrombosis, did not correlate with either. Patients with high MPO-DNA but low D-dimer levels generated poor antiviral antibody titers. This study introduces lymphatic coagulation in lungs and LDLNs as a clinical manifestation of severe COVID-19 and suggests the involvement of NETosis of lymphatic-trafficking neutrophils. It further suggests that lymphatic clotting may correlate with impaired formation or maintenance of GCs necessary for robust antiviral antibody responses, although further studies are needed to determine whether and how lymphatic coagulation affects adaptive immune responses.

Indexed as

COVID-19Extracellular TrapsThrombosisAnimalsDNALungLymph NodesMiceDNA

Identifiers

PMID35977099
PMCPMC9394105
OpenAlexW4292133609

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.