Evidence map›Paper›PMID 42240186›Full record

ArticleArthritis & rheumatology (Hoboken, N.J.)2026

Multimodal Peripheral Blood Immunophenotyping and Single-Cell Epigenetic Analysis of Knee Osteoarthritis Reveals Expansion and Epigenetic Dysregulation of Treg Cell and Nonclassical Monocyte Populations.

Aleksander Szymczak, Gabriella Dyson, Montana Barrett, Cindy Miranda Brawner, Nicholas Hanebutt, Carla Guthridge, Caleb Marlin, Joel Guthridge, Padmaja Mehta D'souza, Matlock A Jeffries

Abstract read
In one paragraph

Article in Arthritis & rheumatology (Hoboken, N.J.), 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
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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.

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Aleksander SzymczakArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Gabriella DysonArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Montana BarrettArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Cindy Miranda BrawnerArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Nicholas HanebuttArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Carla GuthridgeArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Caleb MarlinArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Joel GuthridgeArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Padmaja Mehta D'souzaArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.
Matlock A JeffriesArthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City.ORCID https://orcid.org/0000-0001-9516-4312

Funding

Visualizing insulin actions on neuronal metabolism and function using fluorescent biosensorsP20GM125528 · NIGMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI Veronica Galvan, William Edmund Sonntag · 2019 to 2026
$17.8M
Oklahoma Rheumatic Disease Research Cores Center (Overall Application)P30AR073750 · NIAMS · OKLAHOMA MEDICAL RESEARCH FOUNDATION · PI JUDITH A JAMES · 2018 to 2026
$8.5M
Peripheral blood mononuclear cell epigenetic associations in and biomarkers for knee osteoarthritis development and progression.R01AR076440 · NIAMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI BHUTANI, NIDHI, JEFFRIES, MATLOCK · 2020 to 2025
$3.6M
Intraarticular microbial DNA as a novel mediator of osteoarthritisR33AR078075 · NIAMS · OKLAHOMA MEDICAL RESEARCH FOUNDATION · PI JEFFRIES, MATLOCK · 2022 to 2022
$437k
The peripheral blood microbiome as a potential biomarker of knee osteoarthritisR21AR085344 · NIAMS · OKLAHOMA MEDICAL RESEARCH FOUNDATION · PI JEFFRIES, MATLOCK · 2024 to 2024
$413k
BLRD VA I01 BX007116CSRD VA I01 CX002494NIAMS NIH HHS 2r01ar076440NIAMS NIH HHS p20gm125528NIAMS NIH HHS p30ar073750NIAMS NIH HHS P30 AR073750NIAMS NIH HHS r01ar076440NIAMS NIH HHS R01 AR076440NIAMS NIH HHS R21 AR085344NIAMS NIH HHS r33ar078075NIAMS NIH HHS R33 AR078075NIGMS NIH HHS P20 GM125528
6 · The paper itself

Abstract

objectiveOsteoarthritis (OA) involves systemic inflammation, yet peripheral blood immunophenotypes and their underlying epigenetic landscapes remain poorly defined. We characterized cellular and chromatin accessibility profiles in knee OA and radiographic progressors (RPs).

methodsWe performed multimodal immunophenotyping using cytometry by time-of-flight mass spectrometry (CyTOF) on peripheral blood samples from 21 patients with knee OA and 11 healthy controls (HCs). To confirm findings, we developed DNA methylation-based imputation models and applied them to two independent validation cohorts (n = 723). Finally, single-cell Assay for Transposase-Accessible Chromatin sequencing (scATAC-seq) was performed to interrogate chromatin accessibility landscapes in a patient subset.

resultsCyTOF identified significant expansions of CD8

conclusionKnee OA is characterized by validated systemic expansions of specific Treg cell and monocyte subsets. Single-cell epigenetic profiling suggests epigenetically distinct subpopulations driven by age, OA, comorbid conditions, or migration from circulation to the periphery.

Identifiers

PMID42240186
PMCPMC13529310

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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 OpenQuestion graph.