Systemic sclerosis & Raynaud's

Triosephosphate isomerase (TPI1) and TPM4 are strong candidate RNA biomarkers for systemic sclerosis

Arthritis Res TherPublished Biomarker validation study

Authors' conclusion

We conclude that TPI1 and TPM4 are reliable and specific biomarkers for SSc, and can be measured in blood samples with minimal risk to patients, thereby facilitating a cost-effective and timely diagnosis.

Study context

Population
Patients with Systemic Sclerosis (SSc) and other rheumatic diseases, and healthy controls; peripheral blood samples
Comparison
SSc vs healthy controls vs other rheumatic diseases
Outcome
Differential expression of selected candidate RNA biomarkers in peripheral blood
Methodological detailsreal-time PCR, pathway analysis (Enrichr)
  • Real-time PCR
  • Pathway analysis (Enrichr)

Performance

As reported in the abstract

Expression of candidate biomarkers in blood
  • Overexpression of TPI1 and TPM4 in SSc vs healthy controls or other rheumatic diseases

Further findings

Pathway analysis (Enrichr)

TPI1 and TPM4 implicated in pathways that might be involved in disease pathogenesis

Original publication

TPI1 and TPM4 are strong candidate RNA biomarkers for systemic sclerosis. Arthritis Res Ther. Published 4 February 2026. doi:10.1186/s13075-026-03760-7

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