Evidence mapPaperPMID 42438590Full record

ArticleJournal of inflammation research2026

Peripheral Immune Reprogramming Characterizes a Low C-Peptide Subgroup of Type 2 Diabetes: Transcriptomic Profiling of Peripheral Blood Mononuclear Cells and Systemic Inflammation.

Yajing Xu, Yiting Li, Xiying Zeng, Lijun Chen, Hongli Lin, Wenxin Xie, Zitong Wang, Zhengrong Jiang, Honghong Duan, Huibin Huang

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

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Yajing XuDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.ORCID 0009-0003-8582-5158
Yiting LiDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Xiying ZengDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Lijun ChenDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Hongli LinDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Wenxin XieDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Zitong WangIndependent Researcher, West New York, NJ, USA.
Zhengrong JiangDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Honghong DuanDepartment of Obstetrics and Gynecology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.
Huibin HuangDepartment of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, People's Republic of China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Type 2 diabetes (T2DM) is clinically heterogeneous. A subgroup with markedly reduced C-peptide has poorer glycemic stability and different therapeutic needs, but the associated peripheral immune features and practical non-invasive markers are not well defined. We investigated whether T2DM with low C-peptide (T2DM-LowC) is associated with a distinct peripheral immune profile. Methods: In this single-center, cross-sectional study, patients with T2DM were propensity score-matched 1:1 by disease duration into low C-peptide (T2DM-LowC, n=109) and preserved C-peptide (T2DM-PresC, n=109) groups. Clinical and metabolic variables were compared. In an exploratory sub-cohort (n=21; HC=7, PresC=7, LowC=7), transcriptomic profiling of peripheral blood mononuclear cells (PBMCs) was analyzed using differential expression analysis, weighted gene co-expression network analysis, and CIBERSORTx deconvolution. Candidate genes were validated in an independent cohort (n=40) by RT-qPCR. Results: Compared with T2DM-PresC, the T2DM-LowC subgroup had lower BMI and triglycerides, higher alkaline phosphatase, and a higher systemic inflammation response index (SIRI; neutrophils × monocytes/lymphocytes). Higher SIRI remained associated with low C-peptide status after adjustment (OR = 2.38, p = 0.007). Exploratory PBMC transcriptomic analyses identified lower mast-cell-related signatures, higher resting NK-cell and resting CD4 memory T-cell signatures, and a shift toward memory B cells. CSF2RB, NIBAN1, and TLR1 were consistently downregulated in T2DM-LowC, and the three-gene panel discriminated the two T2DM subgroups in the validation cohort (AUC = 0.903; sensitivity 75.0%; specificity 90.0%). Conclusion: In this cross-sectional dataset, low C-peptide T2DM was associated with a distinct clinical and peripheral immune profile. Integrating SIRI with a three-gene PBMC signature may provide a non-invasive adjunct for identifying this subgroup. These deconvolution-derived immune-cell findings require validation in larger and functionally characterized cohorts.

Indexed as

biomarkersC-peptideperipheral blood mononuclear cellssystemic inflammationtranscriptomicstype 2 diabetes

Identifiers

PMID42438590
PMCPMC13356853

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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.