4.6 Article

Proteomics Profiling of the Urine of Patients with Hyperthyroidism after Anti-Thyroid Treatment

Journal

MOLECULES
Volume 26, Issue 7, Pages -

Publisher

MDPI
DOI: 10.3390/molecules26071991

Keywords

hyperthyroidism; urine proteomics; inflammation; acute phase proteins; apolipoproteins; carbimazole; ingenuity pathway analysis

Funding

  1. National Plan for Science, Technology, and Innovation (MAARIFAH), King Abdulaziz City for Science and Technology, Saudi Arabia [13-MED920-02]

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This study characterized the urinary proteome of patients with hyperthyroidism using an untargeted proteomic approach, revealing differences in protein abundance before and after treatment. The identified proteins are involved in regulating cellular metabolism, transport, and acute phase response processes. Bioinformatic analysis indicated dysregulation of pathways associated with cellular compromise, inflammatory response, and identified central nodes such as the APP and AKT signaling pathways.
Hyperthyroidism, which is characterized by increased circulating thyroid hormone levels, alters the body's metabolic and systemic hemodynamic balance and directly influences renal function. In this study, the urinary proteome of patients with hyperthyroidism was characterized using an untargeted proteomic approach with network analysis. Urine samples were collected from nine age-matched patients before and after carbimazole treatment. Differences in the abundance of urinary proteins between hyperthyroid and euthyroid states were determined using a 2D-DIGE coupled to MALDI-TOF mass spectrometry. Alterations in the abundance of urinary proteins, analyzed via Progenesis software, revealed a statistically significant difference in abundance in a total of 40 spots corresponding to 32 proteins, 25 up and 7 down (>= 1.5-fold change, ANOVA, p <= 0.05). The proteins identified in the study are known to regulate processes associated with cellular metabolism, transport, and acute phase response. The notable upregulated urinary proteins were serotransferrin, transthyretin, serum albumin, ceruloplasmin, alpha-1B-glycoprotein, syntenin-1, and glutaminyl peptide cyclotransferase, whereas the three notable downregulated proteins were plasma kallikrein, protein glutamine gamma-glutamyl transferase, and serpin B3 (SERPINB3). Bioinformatic analysis using ingenuity pathway analysis (IPA) identified the dysregulation of pathways associated with cellular compromise, inflammatory response, cellular assembly, and organization and identified the involvement of the APP and AKT signaling pathways via their interactions with interleukins as the central nodes.

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