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. 2019 Jun 3;17(5):272–279. doi: 10.1089/met.2018.0123

Table 3.

Physiological Pathways Related to the 22 Proteins Being Related to All 5 Components of Metabolic Syndrome According to www.reactome.org

Protein Abbreviation Pathways
Leptin LEP Transcriptional regulation of white adipocyte differentiation
Low-density lipoprotein receptor LDL receptor Plasma lipoprotein assembly, remodeling, and clearance, metabolism of fat-soluble vitamins, clathrin-mediated endocytosis, and vesicle-mediated transport
Insulin-like growth factor-binding protein 2 IGFBP-2 Regulation of IGF transport and uptake
Fatty acid-binding protein, adipocyte FABP4 Transcriptional regulation of white adipocyte differentiation and triglyceride metabolism
Interleukin-1 receptor antagonist protein IL-1ra MAPK family signaling cascades and cytokine signaling,
Paraoxonase (PON 3) PON3 Synthesis of 5-eicosatetraenoic acids
Insulin-like growth factor-binding protein 1 IGFBP-1 Regulation of IGF transport and uptake
Tissue-type plasminogen activator t-PA dissolution of fibrin clot, signaling by PDGF, and signaling by receptor tyrosine kinases
Retinoic acid receptor responder protein 2 RARRES2 Platelet activation, signaling, and aggregation
Fibroblast growth factor 21 FGF-21 Assembly of active LPL and LIPC lipase complexes, cellular hexose transport, and SLC-mediated transmembrane transport
Plasminogen activator inhibitor 1 PAI Dissolution of fibrin clot, signaling by PDGF, BMAL1:CLOCK, and NPAS2 activates circadian gene expression, ECM proteoglycans, and RNA polymerase II transcription
Cathepsin D CTSD Peptide hormone metabolism, ESR-mediated signaling, metabolism of angiotensinogen to angiotensins, collagen degradation, MHC class II antigen presentation, and neutrophil degranulation
Retinal dehydrogenase 1 ALDH1A1 Fructose metabolism, ethanol oxidation, retinoic acid biosynthesis pathway, and phase I—functionalization of compounds
Nodal modulator 1 NOMO1 Nodal signaling, heart development, and trophoblast cell proliferation
C-C motif chemokine 16 CCL16 Chemokine receptors bind chemokines
Carbonic anhydrase 5A, mitochondrial CA5A Reversible hydration of carbon dioxide
Thimet oligopeptidase THOP1 Class I MHC-mediated antigen processing and presentation
Dihydropteridine reductase QDPR Metabolism of amino acids and derivatives
Leukocyte immunoglobulin-like receptor subfamily A member 5 LILRA5 Immunoregulatory interactions between a lymphoid cell and a nonlymphoid cell
NAD kinase NADK Metabolism of water-soluble vitamins and cofactors
Amyloid-like protein 1 APLP1 Neuronal differentiation, synaptogenesis, neurite outgrowth, and synaptic plasticity
Matrix metalloproteinase-9 MMP-9 Degradation of the ECM, neutrophil degranulation, EPH-ephrin-mediated repulsion of cells, cytokine signaling in the immune system, and signaling by receptor tyrosine kinases

IGF, insulin-like growth factor; ECM, extracellular matrix.