Serum anti‑TSTD2 antibody as a biomarker for atherosclerosis‑induced ischemic stroke and chronic kidney disease

Med Int (Lond). 2022 Dec 21;3(1):4. doi: 10.3892/mi.2022.64. eCollection 2023 Jan-Feb.

Abstract

Autoantibodies can be used in the early diagnosis and treatment of atherosclerosis-related diseases. Using ProtoArray® screening of samples from patients with atherosclerosis, the present study identified thiosulfate sulfurtransferase-like domain-containing 2 (TSTD2) as a novel atherosclerosis antigen. The serum TSTD2 antibody levels were then quantified using an amplified luminescent proximity homogeneous assay-linked immunosorbent assay. This demonstrated the levels of TSTD2 antibodies (TSTD2-Abs) to be significantly higher in patients with acute cerebral infarction or chronic kidney disease than in healthy donors. The TSTD2-Ab levels were also found to be higher in males, older adults, smokers, in those who consumed alcohol regularly, and in those with hypertension. Furthermore, Spearman's rank correlation analysis revealed TSTD2-Ab levels to be strongly associated with measures of atherosclerosis severity, including plaque scores, intima-media thickness of the carotid artery and the cardio-ankle vascular index. Thus, TSTD2-Abs may thus be a promising novel biomarker for atherosclerosis-related cerebral infarction and kidney disease.

Keywords: acute cerebral infarction; atherosclerosis; autoantibody; chronic kidney disease; thiosulfate sulfurtransferase-like domain-containing 2.

Associated data

  • figshare/10.6084/m9.figshare.21510009.v1

Grants and funding

Funding: The present study was supported, in part, by research grants from the Japan Science and Technology Agency (Exploratory Research No. 14657335) and JSPS KAKENHI (grant nos. 20K17953, 22K09227, 17K16626, 22K07273 and 19K09451).