Evidence map›Paper›PMID 10411926›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

Dipeptidyl peptidase I is required for the processing and activation of granzymes A and B in vivo.

C T Pham, T J Ley

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 147 papers.

0numbers the graph read from it
0cells of the map it votes in
147citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

147 citing papers in PubMed, 392 citations in OpenAlex.

  1. Trial
  2. Article
  3. Proteases in intestinal health and disease.Nature reviews. Gastroenterology & hepatology · 2026
    Review
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  14. Review
  15. Article
  16. Article
  17. Fluorogenic Granzyme A Substrates Enable Real-Time Imaging of Adaptive Immune Cell Activity.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

C T PhamDivision of Rheumatology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110-1093, USA.
T J Ley
Washington University in St. Louis · US

Funding

THE ROLE OF GRANZYMES IN CYTOTOXIC LYMPHOCYTE FUNCTIONSR01DK049786 · NIDDK · WASHINGTON UNIVERSITY · PI LEY, TIMOTHY J. · 1995 to 2009
$3.5M
DPPI AND CELL MEDIATED IMMUNITYK08HL003774 · NHLBI · WASHINGTON UNIVERSITY · PI PHAM, CHRISTINE T · 1997 to 2001
$223k
TRANSCRIPTIONAL REGULATION AND ROLE OF BCL-2 IN DEVELOPMENT AND NEOPLASIAP01CA049712 · NCI · WASHINGTON UNIVERSITY · PI KORSMEYER, STANLEY J · 1989 to 1999
–
NCI NIH HHS CA49712NHLBI NIH HHS K08-HL-03774NIDDK NIH HHS DK49786NIDDK NIH HHS R01 DK049786
6 · The paper itself

Abstract

Dipeptidyl peptidase I (DPPI) is a lysosomal cysteine protease that has been implicated in the processing of granzymes, which are neutral serine proteases exclusively expressed in the granules of activated cytotoxic lymphocytes. In this report, we show that cytotoxic lymphocytes derived from DPPI-/- mice contain normal amounts of granzymes A and B, but these molecules retain their prodipeptide domains and are inactive. Cytotoxic assays with DPPI-/- effector cells reveal severe defects in the induction of target cell apoptosis (as measured by [(125)I]UdR release) at both early and late time points; this defect is comparable to that detected in perforin-/- or granzyme A-/- x B-/- cytotoxic lymphocytes. DPPI therefore plays an essential role in the in vivo processing and activation of granzymes A and B, which are required for cytotoxic lymphocyte granule-mediated apoptosis.

Indexed as

AnimalsApoptosisCathepsin CCytoplasmic GranulesCytotoxicity Tests, ImmunologicDeoxyuridineDipeptidyl-Peptidases and Tripeptidyl-PeptidasesEnzyme ActivationFlow CytometryGene TargetingGranzymesKiller Cells, Lymphokine-ActivatedMembrane GlycoproteinsMiceMice, KnockoutPerforinCathepsin CDeoxyuridineDipeptidyl-Peptidases and Tripeptidyl-PeptidasesGranzymesGzmb protein, mouseMembrane GlycoproteinsPerforinPore Forming Cytotoxic ProteinsProtein PrecursorsSerine Endopeptidases

Identifiers

PMID10411926
PMCPMC17567
OpenAlexW2170872843

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.