Evidence map›Paper›PMID 23621622›Full record

ArticleJournal of thrombosis and haemostasis : JTH2013

Analysis of tissue factor expression in various cell model systems: cryptic vs. active.

H Kothari, U R Pendurthi, L V M Rao

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

H KothariDepartment of Cellular and Molecular Biology, Center for Biomedical Research, The University of Texas Health Science Center at Tyler, TX 75708, USA.
U R Pendurthi
L V M Rao
The University of Texas Health Science Center at Tyler · US

Funding

Factor VIIa Interaction with Endothelial Cell Protein C ReceptorR01HL107483 · NHLBI · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI LELLA, VIJAYA MOHAN RAO · 2012 to 2019
$2.9M
INITIATION AND REGULATION OF BLOOD COAGULATIONR01HL058869 · NHLBI · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI LELLA, VIJAYA MOHAN RAO · 1998 to 2010
$2.3M
NHLBI NIH HHS HL1074830NHLBI NIH HHS HL58869NHLBI NIH HHS R01 HL058869NHLBI NIH HHS R01 HL107483
6 · The paper itself

Abstract

backgroundTissue factor (TF) encryption plays an important role in regulating TF coagulant activity. Potential differences in experimental cell model systems and strategies hampered our understanding of the TF encryption mechanisms.

objectiveTo characterize the procoagulant activity status of TF in different cell types, and to determine whether increased TF procoagulant activity following the activation stems from transformation of the cryptic TF to the active form.

methodsSimultaneous kinetic analyses of TF-FVIIa activation of FX and FVIIa binding to cell surface TF were performed under identical experimental conditions in fibroblast (WI-38), cancer cell (MDA-231), endothelial cell (HUVEC) and monocytic cell (THP-1) model systems. These data were then utilized to estimate TF coagulant-specific activity and percentages of active and cryptic TF present in these cell types.

resultsMDA-231 and WI-38 cells express 10 to 100 times more TF on their cell surfaces compared with perturbed HUVEC and THP-1 cells. TF-specific activity on cell surfaces of MDA-231, WI-38 and THP-1 cells was very similar. Nearly 80-90% of the TF in MDA-231, WI-38 and THP-1 cells was cryptic. A plasma concentration of FVII would be sufficient to bind both active and cryptic TF on cell surfaces. Increased TF activity following cell activation stems from decryption of cryptic TF rather than increasing the coagulant activity of the active TF.

conclusionsOur data demonstrate that TF encryption is not limited to a specific cell type, and unlike previously thought, the majority of the TF expressed in cancer cells is not constitutively procoagulant.

Indexed as

Blood CoagulationSignal TransductionBreast NeoplasmsCell Line, TumorCell MembraneFactor VIIaFactor XaFemaleFibroblastsHumansHuman Umbilical Vein Endothelial CellsKineticsMonocytesThromboplastinFactor VIIaFactor XaThromboplastinblood coagulation factorscellsfactor VIIahemostasisphospholipidstissue factor

Identifiers

PMID23621622
PMCPMC3900323
OpenAlexW1994300073

What OpenQuestion holds

Textmetadata
LicenceTDM
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.