Evidence map›Paper›PMID 40264766›Full record

ArticleFrontiers in immunology2025

Expression of innate immunity genes in human hematopoietic stem/progenitor cells - single cell RNA-seq analysis.

Justyna Jarczak, Kannathasan Thetchinamoorthy, Diana Wierzbicka, Kamila Bujko, Mariusz Z Ratajczak, Magdalena Kucia

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Article in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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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

6 authors.

Justyna JarczakLaboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland.
Kannathasan ThetchinamoorthyLaboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland.
Diana WierzbickaLaboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland.
Kamila BujkoLaboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland.
Mariusz Z RatajczakLaboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland.
Magdalena KuciaLaboratory of Regenerative Medicine, Medical University of Warsaw, Warsaw, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The complement system expressed intracellularly and known as complosome has been indicated as a trigger in the regulation of lymphocyte functioning. The expression of its genes was confirmed also in several types of human bone marrow-derived stem cells: mononuclear cells (MNCs), very small embryonic-like stem cells (VSELs), hematopoietic stem/progenitor cells (HSPCs), endothelial progenitors (EPCs) and mesenchymal stem cells (MSCs). In our previous studies, we demonstrated the expression of complosome proteins including C3, C5, C3aR, and cathepsin L in purified HSPCs. However, there is still a lack of results showing the expression of complosome system elements and other immunity-related proteins in human HSPCs at the level of single cell resolution. Methods: We employed scRNA-seq to investigate comprehensively the expression of genes connected with immunity, in two populations of human HSPCs: CD34+Lin-CD45+ and CD133+Lin-CD45+, with the division to subpopulations. We focused on genes coding complosome elements, selected cytokines, and genes related to antigen presentation as well as related to immune regulation. Results: We observed the differences in the expression of several genes e.g. C3AR1 and C5AR1 between two populations of HSPCs: CD34+LinCD45+ and CD133+Lin-CD45+ resulting from their heterogeneous nature. However, in both kinds of HSPCs, we observed similar cell subpopulations expressing genes (e.g. NLRP3 and IL-1β) at the same level, which suggests the presence of cells performing similar functions connected with the activation of inflammatory processes contributing to the body's defense against infections. Discussion: To our best knowledge, it is the first time that expression of complosome elements was studied in HSPCs at the single cell resolution with the use of single cell sequencing. Thus, our data sheds new light on complosome as a novel regulator of hematopoiesis that involves intracrine activation of the C5a-C5aR-Nlrp3 inflammasome axis.

Indexed as

Gene Expression RegulationHematopoietic Stem CellsImmunity, InnateGene Expression ProfilingHumansRNA-SeqSingle-Cell Analysiscomplement cascadecomplosomeinnate immunityNLRP3 inflammasomeNOD-like receptorsscRNA-seqtoll-like receptors

Identifiers

PMID40264766
PMCPMC12011761

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