Evidence map›Paper›PMID 42776797›Full record

ReviewAntibodies (Basel, Switzerland)2026

Molecular Architecture and Clinical Landscape of Immune Checkpoint Receptors and Ligands.

Milena Czosnek, Agata Sowa, Łucja Rolek, Ewelina Grywalska, Sebastian Mertowski, Paulina Mertowska

Abstract readReview
In one paragraph

Review in Antibodies (Basel, Switzerland), 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

6 authors.

Milena CzosnekDepartment of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland.
Agata SowaDepartment of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland.
Łucja RolekDepartment of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland.
Ewelina GrywalskaDepartment of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland.
Sebastian MertowskiDepartment of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland.ORCID 0000-0002-7121-1396
Paulina MertowskaDepartment of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland.ORCID 0000-0001-9530-6659

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune checkpoints (ICPs) are essential regulators of immune homeostasis, maintaining the balance between effective immune responses and tolerance to self-antigens. Dysregulation of ICP signaling may contribute to impaired immune surveillance, immune evasion, chronic inflammation, autoimmunity, persistent infections, and tumor progression. Consequently, ICP molecules are increasingly recognized not only as therapeutic targets but also as potential diagnostic, prognostic, predictive, and treatment-monitoring biomarkers. This review provides a comprehensive overview of the biological functions, signaling mechanisms, and clinical significance of major co-inhibitory and co-stimulatory ICP pathways, including PD-1/PD-L1/PD-L2, CTLA-4/CD28/CD80/CD86, LAG-3, TIM-3, TIGIT, BTLA, VISTA, ICOS, OX40, 4-1BB, GITR, CD27, CD40, and CD2, together with their corresponding ligands. Particular emphasis is placed on their biomarker potential in cancer and immune-mediated diseases. In addition, the review presents a bioinformatic characterization of ICP receptors and ligands based primarily on data available in UniProtKB and complementary bioinformatic resources. The analysis includes protein sequence length, molecular weight, theoretical isoelectric point, amino acid composition, subcellular localization, conserved and functional domains, protein family classification, post-translational modifications, isoforms, and selected structural features. Collectively, the available evidence indicates that ICPs constitute a structurally and functionally diverse group of immunoregulatory molecules with substantial biomarker potential. Integrating their molecular, structural, functional, and bioinformatic characteristics may improve disease classification, prognosis, patient stratification, treatment selection, and therapeutic monitoring. Such an integrated approach may also support the identification of novel biomarkers and therapeutic targets and contribute to the further development of precision and personalized medicine.

Indexed as

bioinformaticsbiomarkersimmune checkpointsimmune regulationimmunotherapytumor microenvironment

Identifiers

PMID42776797
PMCPMC13600086

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.