Evidence map›Paper›PMID 28829816›Full record

ArticlePloS one2017

Matriptase shedding is closely coupled with matriptase zymogen activation and requires de novo proteolytic cleavage likely involving its own activity.

Chun-Che Tseng, Bailing Jia, Robert Barndt, Yayun Gu, Chien-Yu Chen, I-Chu Tseng, Sheng-Fang Su, Jehng-Kang Wang, Michael D Johnson, Chen-Yong Lin

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 42 citations in OpenAlex.

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  19. Trypsin-Like Proteases and Their Role in Muco-Obstructive Lung Diseases.International journal of molecular sciences · 2021
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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

10 authors at 2 institutions in 3 countries.

Chun-Che TsengLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Bailing JiaLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Robert BarndtLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Yayun GuLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Chien-Yu ChenDepartment of Biochemistry National Defense Medical Center, Taipei, Taiwan.
I-Chu TsengLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Sheng-Fang SuLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Jehng-Kang WangDepartment of Biochemistry National Defense Medical Center, Taipei, Taiwan.
Michael D JohnsonLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.
Chen-Yong LinLombardi Comprehensive Cancer Center, Department of Oncology Georgetown University, Washington DC, United States of America.ORCID http://orcid.org/0000-0002-6391-2571
Georgetown University · USNational Defense Medical Center · TW

Funding

Tissue Culture Shared ResourceP30CA051008 · NCI · GEORGETOWN UNIVERSITY · PI Louis M Weiner · 1990 to 2026
$71.5M
Mechanisms of Deregulation of Matriptase in Breast CancerR01CA123223 · NCI · GEORGETOWN UNIVERSITY · PI JOHNSON, MICHAEL D, LIN, CHEN-YONG · 2010 to 2014
$1.6M
NCI NIH HHS P30 CA051008NCI NIH HHS R01 CA123223
6 · The paper itself

Abstract

The type 2 transmembrane serine protease matriptase is involved in many pathophysiological processes probably via its enzymatic activity, which depends on the dynamic relationship between zymogen activation and protease inhibition. Matriptase shedding can prolong the life of enzymatically active matriptase and increase accessibility to substrates. We show here that matriptase shedding occurs via a de novo proteolytic cleavage at sites located between the SEA domain and the CUB domain. Point or combined mutations at the four positively charged amino acid residues in the region following the SEA domain allowed Arg-186 to be identified as the primary cleavage site responsible for matriptase shedding. Kinetic studies further demonstrate that matriptase shedding is temporally coupled with matriptase zymogen activation. The onset of matriptase shedding lags one minute behind matriptase zymogen activation. Studies with active site triad Ser-805 point mutated matriptase, which no longer undergoes zymogen activation or shedding, further suggests that matriptase shedding depends on matriptase zymogen activation, and that matriptase proteolytic activity may be involved in its own shedding. Our studies uncover an autonomous mechanism coupling matriptase zymogen activation, proteolytic activity, and shedding such that a proportion of newly generated active matriptase escapes HAI-1-mediated rapid inhibition by shedding into the extracellular milieu.

Indexed as

Amino Acid SequenceAntibodies, MonoclonalCell Line, TumorEnzyme ActivationEnzyme PrecursorsHumansPoint MutationProteolysisSequence Homology, Amino AcidSerine EndopeptidasesAntibodies, MonoclonalEnzyme PrecursorsmatriptaseSerine Endopeptidases

Identifiers

PMID28829816
PMCPMC5567652
OpenAlexW2750314620

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.