Evidence map›Paper›PMID 20679732›Full record

ArticleThe Journal of clinical investigation2010

Serine protease activity contributes to control of Mycobacterium tuberculosis in hypoxic lung granulomas in mice.

Stephen T Reece, Christoph Loddenkemper, David J Askew, Ulrike Zedler, Sandra Schommer-Leitner, Maik Stein, Fayaz Ahmad Mir, Anca Dorhoi, Hans-Joachim Mollenkopf, Gary A Silverman and 1 more

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
4.0field-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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Journal of bacteriology · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Intradermal Inoculation of Mycobacterium avium in the Mouse Ear.Journal of visualized experiments : JoVE · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Role of phagocyte extracellular traps duringFrontiers in microbiology · 2023
    Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

3 more citing papers are in PubMed but not listed here.

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

11 authors at 4 institutions in 2 countries.

Stephen T ReeceDepartment of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany. reece@mpiib-berlin.mpg.de
Christoph Loddenkemper
David J Askew
Ulrike Zedler
Sandra Schommer-Leitner
Maik Stein
Fayaz Ahmad Mir
Anca Dorhoi
Hans-Joachim Mollenkopf
Gary A Silverman
Stefan H E Kaufmann
Max Planck Society · DEMax Planck Institute for Infection Biology · DEMagee-Womens Hospital · USUniversity of Pittsburgh Medical Center · US

Funding

Intracellular Serpin Regulation of Intestinal Cell NecrosisR01DK081422 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SILVERMAN, GARY ARTHUR · 2009 to 2012
$1.6M
NIDDK NIH HHS DK081422NIDDK NIH HHS R01 DK081422
6 · The paper itself

Abstract

The hallmark of human Mycobacterium tuberculosis infection is the presence of lung granulomas. Lung granulomas can have different phenotypes, with caseous necrosis and hypoxia present within these structures during active tuberculosis. Production of NO by the inducible host enzyme NOS2 is a key antimycobacterial defense mechanism that requires oxygen as a substrate; it is therefore likely to perform inefficiently in hypoxic regions of granulomas in which M. tuberculosis persists. Here we have used Nos2-/- mice to investigate host-protective mechanisms within hypoxic granulomas and identified a role for host serine proteases in hypoxic granulomas in determining outcome of disease. Nos2-/- mice reproduced human-like granulomas in the lung when infected with M. tuberculosis in the ear dermis. The granulomas were hypoxic and contained large amounts of the serine protease cathepsin G and clade B serine protease inhibitors (serpins). Extrinsic inhibition of serine protease activity in vivo resulted in distorted granuloma structure, extensive hypoxia, and increased bacterial growth in this model. These data suggest that serine protease activity acts as a protective mechanism within hypoxic regions of lung granulomas and present a potential new strategy for the treatment of tuberculosis.

Indexed as

AnimalsCathepsin GGranulomaHypoxiaLungMiceMice, Inbred C57BLMice, KnockoutMycobacterium tuberculosisNecrosisPulmonary FibrosisSerine ProteasesTuberculosis, PulmonaryCathepsin GSerine Proteases

Identifiers

PMID20679732
PMCPMC2929725
OpenAlexW2000764396

What OpenQuestion holds

Textmetadata
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.