Evidence map›Paper›PMID 38378635›Full record

ArticleArthritis research & therapy2024

Single-cell RNA sequencing of submandibular gland reveals collagen type XV-positive fibroblasts as a disease-characterizing cell population of IgG4-related disease.

Shigeru Tanaka, Takuya Yamamoto, Arifumi Iwata, Masahiro Kiuchi, Kota Kokubo, Tomohisa Iinuma, Takahiro Sugiyama, Toyoyuki Hanazawa, Kiyoshi Hirahara, Kei Ikeda and 1 more

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2024. 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
3.8field-weighted citation impact, top 7% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

  1. Review
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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

11 authors at 2 institutions in 1 country.

Shigeru Tanaka *Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan. stanaka@chiba-u.jp.
Takuya Yamamoto *Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan.
Arifumi Iwata *Department of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan.
Masahiro KiuchiDepartment of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.
Kota KokuboDepartment of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.
Tomohisa IinumaDepartment of Otorhinolaryngology/Head & Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Takahiro SugiyamaDepartment of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan.
Toyoyuki HanazawaDepartment of Otorhinolaryngology/Head & Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Kiyoshi HiraharaDepartment of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan.
Kei IkedaDepartment of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan. k-ikeda847@dokkyomed.ac.jp.
Hiroshi NakajimaDepartment of Allergy and Clinical Immunology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba, 260-8670, Japan.
Chiba University · JPDokkyo Medical University · JP

Funding

Japan Society for the Promotion of Science 21K08436
6 · The paper itself

Abstract

objectivesIgG4-related disease (IgG4-RD) is a systemic autoimmune disease with an unknown etiology, affecting single/multiple organ(s). Pathological findings include the infiltration of IgG4-producing plasma cells, obliterative phlebitis, and storiform fibrosis. Although immunological studies have shed light on the dysregulation of lymphocytes in IgG4-RD pathogenesis, the role of non-immune cells remains unclear. This study aimed to investigate the demographics and characteristics of non-immune cells in IgG4-RD and explore potential biomarkers derived from non-immune cells in the sera.

methodsWe conducted single-cell RNA sequence (scRNA-seq) on non-immune cells isolated from submandibular glands of IgG4-RD patients. We focused on fibroblasts expressing collagen type XV and confirmed the presence of those fibroblasts using immunohistochemistry. Additionally, we measured the levels of collagen type XV in the sera of IgG4-RD patients.

resultsThe scRNA-seq analysis revealed several distinct clusters consisting of fibroblasts, endothelial cells, ductal cells, and muscle cells. Differential gene expression analysis showed upregulation of COL15A1 in IgG4-RD fibroblasts compared to control subjects. Notably, COL15A1-positive fibroblasts exhibited a distinct transcriptome compared to COL15A1-negative counterparts. Immunohistochemical analysis confirmed a significant presence of collagen type XV-positive fibroblasts in IgG4-RD patients. Furthermore, immune-suppressive therapy in active IgG4-RD patients resulted in decreased serum levels of collagen type XV.

conclusionsOur findings suggest that collagen type XV-producing fibroblasts may represent a disease-characterizing non-immune cell population in IgG4-RD and hold potential as a disease-monitoring marker.

Indexed as

Immunoglobulin G4-Related DiseaseCollagenEndothelial CellsFibroblastsHumansSequence Analysis, RNASubmandibular GlandCollagenCollagen type XVFibroblastsIgG4-related diseaseSingle-cell RNA sequence

Identifiers

PMID38378635
PMCPMC10877852
OpenAlexW4391961975

What Socratic holds

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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 Socratic graph.