iScience (Feb 2024)

Serum proteome profiling reveals heparanase as a candidate biomarker for chronic thromboembolic pulmonary hypertension

  • Yunxia Zhang,
  • Meng Zhang,
  • Hongwei Yang,
  • Haobo Li,
  • Shuangshuang Ma,
  • Linfeng Xi,
  • Yishan Li,
  • Xincheng Li,
  • Zhihui Fu,
  • Zhu Zhang,
  • Shuai Zhang,
  • Qian Gao,
  • Qiang Huang,
  • Jun Wan,
  • Wanmu Xie,
  • Jifeng Li,
  • Peiran Yang,
  • Zhenguo Zhai

Journal volume & issue
Vol. 27, no. 2
p. 108930

Abstract

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Summary: Determining novel biomarkers for early identification of chronic thromboembolic pulmonary hypertension (CTEPH) could improve patient outcomes. We used the isobaric tag for relative and absolute quantitation approach to compare the serum protein profiles between CTEPH patients and the controls. Bioinformatics analyses and ELISA were also performed. We identified three proteins including heparanase (HPSE), gelsolin (GSN), and secreted protein acidic and rich in cysteine (SPARC) had significant changes in CTEPH. The receiver operating characteristic curve analysis showed that the areas under the curve of HPSE in CTEPH diagnosis were 0.988. Furthermore, HPSE was correlated with multiple parameters of right ventricular function. HPSE concentrations were significantly higher in patients with a low TAPSE/sPAP ratio (≤0.31 mm/mmHg) (65.4 [60.5,68.0] vs. 59.9 [35.9,63.2] ng/mL, p < 0.05). The CTEPH patients treated by balloon pulmonary angioplasty had significantly lower HPSE levels. The study demonstrates that HPSE may be a promising biomarker for noninvasive detection of CTEPH.

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