Evidence map›Paper›PMID 42739654›Full record

ReviewJournal of clinical medicine2026

Soluble CLEC-2 as an Emerging Biomarker of In Vivo Platelet Activation.

Katsue Suzuki-Inoue, Makyo Ueda, Toshiaki Shirai, Nagaharu Tsukiji, Tomoyuki Sasaki

Abstract readReview
In one paragraph

Review in Journal of clinical medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Katsue Suzuki-InoueDepartment of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.ORCID 0000-0001-9678-1451
Makyo UedaDepartment of Laboratory, University of Yamanashi Hospital, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.
Toshiaki ShiraiDepartment of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.
Nagaharu TsukijiDepartment of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.ORCID 0009-0008-8375-0136
Tomoyuki SasakiDepartment of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.ORCID 0009-0006-3060-7016

Funding

Japan Society for the Promotion of Science LS052
6 · The paper itself

Abstract

Platelet activation plays a central role in arterial thrombosis, thromboinflammation, and microvascular injury. Conventional platelet function tests evaluate platelet responsiveness to exogenous agonists ex vivo but do not directly reflect in vivo platelet activation. Although several soluble platelet-derived molecules, including platelet factor 4 (PF4), β-thromboglobulin (β-TG), soluble P-selectin, soluble CD40 ligand, glycocalicin, and soluble glycoprotein (GP) VI, have been investigated as in vivo platelet activation markers, their clinical use is limited by preanalytical instability, lack of platelet specificity, constitutive shedding, or uncertain disease specificity. Soluble C-type lectin-like receptor 2 (sCLEC-2) has recently emerged as a promising biomarker of in vivo platelet activation. CLEC-2 is expressed predominantly in platelets and megakaryocytes, and its soluble form is released from activated platelets as both a shed molecule and a microparticle-associated form. Compared with PF4 and β-TG, sCLEC-2 is less susceptible to artifactual release during routine blood collection, making it more suitable for clinical laboratory testing. Elevated sCLEC-2 levels have been reported in acute coronary syndrome, acute ischemic stroke, disseminated intravascular coagulation, thrombotic microangiopathy, antiphospholipid antibody syndrome, and coronavirus disease 2019 (COVID-19). In thrombocytopenic disorders, indices incorporating platelet count, such as the C2PAC index, sCLEC-2/D-dimer ratio, and sCLEC-2 × D-dimer/platelet count, may better reflect platelet activation and disease status than sCLEC-2 concentration alone. However, preanalytical standardization, assay harmonization, reference interval validation, and disease-specific cutoff values remain essential. This review summarizes the biological basis, assay systems, clinical evidence, and future perspectives of sCLEC-2 as an emerging laboratory marker of in vivo platelet activation.

Indexed as

CLEC-2in vivo platelet activation markerplateletssoluble CLEC-2

Identifiers

PMID42739654
PMCPMC13566893

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