| 2008 |
ENHO encodes a secreted protein, adropin, expressed in liver and brain. Liver Enho expression is regulated by nutrition (increased by high-fat diet, decreased by fasting). Transgenic overexpression or systemic adropin treatment attenuated hepatosteatosis and insulin resistance in diet-induced obese mice, and adropin regulated expression of hepatic lipogenic genes and adipose tissue PPARγ. |
Transgenic overexpression, systemic peptide treatment in mice, gene expression analysis, identification of secretory signal peptide sequence |
Cell metabolism |
High |
19041763
|
| 2017 |
Liver Enho expression is rhythmically controlled by the biological clock: it peaks during maximal food consumption coinciding with transcriptional activation by RORα/γ, and its nadir coincides with the rest phase repressed by Rev-erb. ROR inverse agonists (SR1001, 7-oxygenated sterols) and the Rev-erb agonist SR9009 suppress ENHO expression in human HepG2 cells. High-cholesterol diets suppress hepatic adropin expression. |
In silico expression analysis, cultured human HepG2 cell treatment with nuclear receptor agonists/antagonists, animal model dietary interventions, nonhuman primate plasma measurements |
Molecular metabolism |
High |
29331507
|
| 2016 |
Adropin reduces paracellular permeability of brain endothelial cells exposed to ischemia-like conditions (hypoxia/low glucose) by inhibiting the ROCK-MLC2 signaling pathway; adropin treatment attenuated ROCK activity and MLC2 phosphorylation without protecting junction proteins (occludin, VE-cadherin) or reducing VEGF. |
In vitro BBB model (RBE4 cells), FITC-dextran permeability assay, Western blot for MLC2 phosphorylation, ROCK activity assay, VEGF and junction protein measurement |
Peptides |
High |
27020249
|
| 2017 |
Adropin knockout (AdrKO) mice exhibit reduced eNOS phosphorylation at Ser1177, impaired glycosphingolipid biosynthesis, adipocyte infiltration, and loss of regulatory T cells, developing fatty pancreas and type 2 diabetes. A Cys56Trp mutation in ENHO was identified in T2DM/fatty pancreas patients. |
Adropin knockout mouse model, Western blot (eNOS phosphorylation), metabolic phenotyping, human genetic sequencing, Treg quantification |
Cell death & disease |
High |
28837146
|
| 2016 |
Adropin knockout mice exhibit reduced eNOS (Ser1177) and Akt1 (Ser473) phosphorylation and loss of Treg cells, leading to MPO-ANCA-associated pulmonary alveolar hemorrhage. ENHO mutations (p.Ser43Thr, Cys56Trp) were identified in MPO-ANCA vasculitis patients with lower serum adropin. |
Adropin knockout mouse model, Western blot (eNOS and Akt phosphorylation), human genetic sequencing, ELISA |
EBioMedicine |
High |
27333037
|
| 2019 |
Adropin stimulates proliferation of 3T3-L1 preadipocytes and rat primary preadipocytes via ERK1/2 and AKT signaling pathways, and reduces lipid accumulation and expression of proadipogenic genes, suppressing differentiation of preadipocytes into mature fat cells. |
Cell proliferation assays, Western blot for ERK1/2 and AKT phosphorylation, Oil Red O lipid staining, gene expression analysis in 3T3-L1 and rat primary preadipocytes |
Molecular and cellular endocrinology |
High |
31400396
|
| 2018 |
EOGT (endoplasmic reticulum-specific O-GlcNAc transferase) regulates ENHO/adropin expression in decidualizing human endometrial stromal cells; EOGT knockdown markedly downregulated ENHO as the most reduced gene. Obesity inversely correlates with the EOGT-adropin axis in endometrium. |
siRNA knockdown of EOGT in primary human endometrial stromal cells, RNA-seq, endometrial biopsy analysis |
Endocrinology |
Medium |
29244071
|
| 2020 |
Adropin inhibits adrenocortical steroidogenesis (cortisol and aldosterone) by decreasing expression of StAR and CYP11A1 via the TGF-β signaling pathway (likely transactivation mechanism), and stimulates cell proliferation via ERK1/2 and AKT-dependent signaling in HAC15 adrenal carcinoma cells. GPR19 is expressed in these cells and may mediate adropin signaling. |
Whole transcriptome analysis, TGF-β receptor kinase inhibitor, specific intracellular inhibitors of ERK1/2 and AKT, cortisol/aldosterone secretion assays, Western blot, gene expression analysis |
Frontiers in endocrinology |
Medium |
33133015
|
| 2020 |
STAT3 regulates Enho expression in the liver: high glucose increases pSTAT3/STAT3 ratio and Enho mRNA levels in HepG2 cells, effects inhibited by STAT3 antagonist Stattic or STAT3-specific siRNA knockdown. In diabetic rats, serum adropin and hepatic Enho expression correlate with STAT3 activity and glycemic control. |
HepG2 cell treatment with high glucose, STAT3 inhibitor (Stattic), STAT3 siRNA, Western blot, RT-PCR, streptozotocin rat model, insulin/phloridzin treatment |
Diabetes, metabolic syndrome and obesity |
Medium |
32636661
|
| 2022 |
TGFβ reduces adropin/ENHO expression in fibroblasts in a JNK-dependent manner. Adropin34-76 peptide inhibits TGFβ-induced fibroblast activation and fibrotic remodeling via GPR19 (knockdown of GPR19 abrogated antifibrotic effects). Mechanistically, adropin deactivates GLI1-dependent profibrotic transcriptional networks (confirmed by RNA-seq and ChIP-seq). Adropin is antifibrotic in mouse bleomycin-induced pulmonary fibrosis and sclerodermatous chronic GvHD models and in human precision-cut skin slices. |
siRNA knockdown of GPR19, RNA-seq, ChIP-seq, in vitro primary human dermal fibroblasts, 3D full-thickness skin equivalents, mouse models (bleomycin, sclGvHD), precision-cut human skin slices, JNK inhibitors |
Science translational medicine |
High |
38536934
|
| 2022 |
Adropin treatment in aged mice subjected to transient ischemic stroke reduced infarct volume and preserved blood-brain barrier integrity by reducing MMP-9 and preserving tight junction proteins. Genetic deletion of Enho significantly increased infarct volume, while adropin overexpression reduced stroke volume. |
Enho knockout and transgenic overexpression mice, middle cerebral artery occlusion model, TTC and Cresyl violet staining, ELISA, Western blot for MMP-9 and tight junction proteins, behavioral testing |
Stroke |
High |
36305313
|
| 2019 |
miR-29 suppression in adult mice leads to upregulation of Enho in liver, contributing to improved glycemic control, suggesting Enho is a target gene regulated by miR-29 family members. |
LNA-mediated in vivo suppression of miR-29, whole transcriptome analysis, fasting blood glucose measurement in chow-fed and HFD-fed mice |
Physiological genomics |
Medium |
31251698
|
| 2022 |
Hepatic Enho/adropin expression is regulated by estrogen: ovariectomy reduces hepatic Enho expression in mice, and 17β-estradiol triples Enho expression in BNL 1 ME liver cells with increased adropin in supernatant. ERα binding to Enho was confirmed by open-access dataset analysis. Adropin treatment of OVX mice reversed adverse adipokine gene expression in visceral adipose tissue. |
Ovariectomy mouse model, in vitro 17β-estradiol treatment of liver cells, RNA-seq, analysis of ERα ChIP-seq datasets, adropin IP injection in OVX mice |
Molecular metabolism |
Medium |
35364299
|
| 2023 |
Adropin inhibits endothelial-to-mesenchymal transition (EndMT) in HUVECs via the TGF-β/Smad2/3 signaling pathway: adropin treatment decreased TGF-β1/TGF-β2 expression and suppressed Smad2/3 phosphorylation; overexpression of TGF-β plasmid reversed the protective effects of adropin. In ApoE-/-/Enho-/- mice, adropin injection inhibited atherosclerosis progression. |
In vitro HUVEC EndMT model (H2O2-induced), TGF-β plasmid transfection rescue, Western blot (Smad2/3 phosphorylation), immunofluorescence, qRT-PCR, ApoE-/-/Enho-/- double-KO mouse atherosclerosis model |
Cell death discovery |
Medium |
37903785
|
| 2020 |
Brown preadipocyte proliferation is stimulated by adropin, while adropin suppresses expression of adipogenic genes (C/ebpα, C/ebpβ, Pgc1α, Pparγ, Prdm16) and UCP1 protein production, and reduces intracellular lipid content in brown adipocytes, suppressing their differentiation. |
BrdU incorporation assay, qRT-PCR, Western blot, Oil Red O staining, glycerol/free fatty acid colorimetric assays in rat primary brown preadipocytes |
Archives of biochemistry and biophysics |
Medium |
32798458
|
| 2023 |
Low-dose adropin (<100 ng/mL) activates macrophage inflammasome via increasing mitochondrial reactive oxygen species (ROS), promoting M1 macrophage polarization. High-dose adropin enhances CPT1α expression, shifting macrophage metabolism. Enho-/- mice had fewer M1 macrophages, and Enho-/- macrophages were inert to M1 induction ex vivo. |
Enho knockout mice, ex vivo macrophage treatment with varying adropin doses, mitochondrial ROS measurement, inflammasome activation assay, in vivo MC38 tumor model with ENHO transfection |
BMC cancer |
Medium |
37904094
|
| 2023 |
Adropin deficiency (Enho-/- mice) leads to spontaneous colitis with M1 macrophage infiltration imbalance. Adropin regulates macrophage lipid metabolism through PPARγ, promoting repolarization from M1 to M2. Combined RNA-seq and metabolomics in RAW264.7 cells treated with adropin confirmed PPARγ-dependent lipid metabolic regulation of macrophage phenotype. |
Enho-/- mouse model, RNA-seq, metabolomics, RAW264.7 macrophage treatment, TNBS-induced colitis model, flow cytometry |
International immunopharmacology |
Medium |
37688913
|
| 2023 |
Adropin and its receptor GPR19 are expressed in mouse testis, with adropin immunoreactivity intense in Leydig cells and GPR19 in pachytene spermatocytes and Leydig cells. In vitro, adropin alone inhibits testicular testosterone synthesis by reducing P450-SCC, 3β-HSD, and 17β-HSD expression; combined with insulin, adropin stimulates testosterone synthesis by increasing GPR19, IR, StAR, P450-SCC, 3β-HSD, and 17β-HSD expression and promotes germ cell survival via PCNA, Bcl2, and pERK1/2. |
Immunohistochemistry, RT-PCR, in vitro testicular slice culture with adropin ± insulin treatment, Western blot |
Journal of experimental zoology Part A |
Medium |
37902254
|
| 2025 |
Adropin provides cardioprotection against sepsis-induced cardiomyopathy via activation of the Nrf2/ARE signaling pathway, upregulating antioxidant proteins NQO1, GPX1, and Nrf2, while reducing ROS, apoptosis (reducing Bax, increasing Bcl-2), and inflammation (reducing TNF-α, IL-6, IL-1β). Rescue experiments with Nrf2 inhibitor ML385 confirmed Nrf2 dependence. |
LPS-induced mouse and cell model of septic cardiomyopathy, Western blot, qRT-PCR, DHE staining, flow cytometry, Nrf2 inhibitor (ML385) rescue experiments |
International immunopharmacology |
Medium |
41391279
|
| 2025 |
ENHO/adropin transcriptional structures in liver overlap with lipoprotein metabolism genes (APOC1, APOA1). Liver-specific ENHO knockout mice show reduced skeletal muscle mitochondrial function. ENHO expression is co-regulated with circadian genes across tissues and reflects activation of oxidative metabolic pathways with suppression of ribosomal functions and cell division. Statin treatment reduces plasma adropin levels. |
Gene-derived correlations across tissues (GD-CAT) analysis, liver-specific knockout mice, plasma adropin/lipoprotein correlations in human cohort, bioinformatics |
Molecular metabolism |
Medium |
40578684
|
| 2025 |
Adropin promotes macrophage polarization to M2 phenotype via upregulation of heme oxygenase-1 (HO-1), and adropin-conditioned macrophage medium induces browning of 3T3-L1 adipocytes. In PCOS mouse model, adropin treatment promoted M2 macrophage polarization and white adipose tissue browning. |
RAW264.7 macrophage treatment, conditioned medium experiments on 3T3-L1 adipocytes, PCOS mouse model, Western blot, gene expression analysis |
International immunopharmacology |
Medium |
39933360
|