| 2018 |
ACLP (AEBP1 extracellular isoform) enhances collagen polymerization and binds directly to several fibrillar collagens via its discoidin domain, as demonstrated by in vitro collagen polymerization assays and binding experiments; loss-of-function bi-allelic AEBP1 variants cause defective collagen fibril assembly in patient skin biopsies. |
In vitro collagen polymerization assay, direct binding assays, electron microscopy of patient skin biopsies, exome sequencing with functional validation |
American journal of human genetics |
High |
29606302
|
| 2006 |
AEBP1 functions as a transcriptional repressor of the aP2 gene; its DNA-binding domain was mapped to a C-terminal basic region by EMSA, but wild-type AEBP1 does not interact strongly with DNA, suggesting it acts predominantly as a corepressor. The carboxypeptidase domain is critical for transcriptional repressor activity. AEBP1 also interacts with Ca2+/calmodulin through the same basic C-terminal region. |
Luciferase reporter assay in CHO cells, electrophoretic mobility shift assay (EMSA), deletion/point mutagenesis, homology modeling |
Proteins |
Medium |
16538615
|
| 2010 |
AEBP1 physically interacts with IκBα and promotes NF-κB transcriptional activity in macrophages; AEBP1-mediated downregulation of IκBα leads to enhanced NF-κB activation, establishing AEBP1 as a positive regulator of the canonical NF-κB pathway in macrophages. |
Protein-protein interaction (physical interaction with IκBα demonstrated), NF-κB reporter assays, macrophage gain/loss-of-function experiments |
Mediators of inflammation |
Medium |
20396415
|
| 2010 |
AEBP1 negatively regulates PPARγ1 and LXRα transcriptional activity in macrophages, thereby impeding cholesterol efflux mediators (ABCA1, ABCG1, ApoE) and promoting foam cell formation. |
Reporter assays, macrophage cholesterol efflux assays, gain/loss-of-function in macrophages |
Nuclear receptor signaling |
Medium |
20419060
|
| 2005 |
AEBP1 negatively regulates PTEN through a direct protein-protein interaction; transgenic overexpression of AEBP1 leads to reduced PTEN levels and hyperactivation of survival signaling in adipose tissue, promoting adipocyte hyperplasia and diet-induced obesity in female mice. |
Transgenic mouse model (AEBP1 overexpression), protein-protein interaction, western blot for PTEN levels, histological analysis of adipose tissue |
Molecular medicine (Cambridge, Mass.) |
Medium |
16307171
|
| 2013 |
Recombinant ACLP induces myofibroblast differentiation (SMA and collagen expression) in lung fibroblasts. ACLP-induced SMA expression occurs via TGFβ receptor-dependent Smad3 phosphorylation and nuclear translocation, while ACLP-induced collagen expression is TGFβ receptor-independent. ACLP knockdown slows fibroblast-to-myofibroblast transition. |
Recombinant protein treatment, siRNA knockdown, phospho-Smad3 immunoblot, nuclear translocation assay, TGFβ receptor kinase inhibitor, bleomycin fibrosis mouse model |
The Journal of biological chemistry |
High |
24344132
|
| 2013 |
AEBP1 is upregulated in PLX4032-resistant melanoma cells due to hyperactivation of PI3K/Akt-CREB signaling, and AEBP1 in turn activates NF-κB by accelerating IκBα degradation, establishing a PI3K/Akt-CREB-AEBP1-NF-κB pathway that confers resistance to BRAF inhibition. |
PI3K/Akt pathway inhibition, AEBP1 overexpression/knockdown, IκBα degradation assay, NF-κB reporter assay, patient tumor samples |
Cell death & disease |
Medium |
24201813
|
| 2011 |
Macrophage-specific AEBP1 overexpression promotes atherosclerosis via reduced expression of PPARγ1, LXRα, ABCA1, and ABCG1 and increased inflammatory mediators IL-6 and TNFα. Ablation of AEBP1 significantly attenuates atherosclerosis. Bone marrow transplantation experiments confirmed that the pro-atherogenic effects are macrophage-mediated. |
Transgenic mouse model, AEBP1 knockout mice, bone marrow transplantation into ApoE-/- and LDLR-/- mice, quantitative lesion analysis, gene expression |
Molecular medicine (Cambridge, Mass.) |
High |
21687917
|
| 2012 |
Stromal macrophage AEBP1 overexpression induces mammary epithelial hyperplasia via NF-κB/TNFα-mediated paracrine signaling and induction of sonic hedgehog (Shh) in macrophages, leading to Gli1 and Bmi1 expression in mammary epithelium. Bone marrow transplantation of AEBP1-transgenic cells into non-transgenic mice recapitulates alveolar hyperplasia. |
Transgenic mouse model, bone marrow transplantation, co-culture experiments, conditioned media, TNFα neutralizing antibody, reporter assays for NF-κB |
The Journal of biological chemistry |
High |
22995915
|
| 2012 |
AEBP1 occupies genomic promoter sites in glioma cells (U87MG) and regulates a large set of genes involved in proliferation and apoptosis. A consensus binding motif GAAAT was identified in 66% of ChIP-chip-identified target promoters and validated by luciferase reporter assay. AEBP1 silencing reduces glioma cell proliferation and survival and promotes apoptosis. |
ChIP-chip with Agilent human promoter tiling array, ChIP-PCR validation, siRNA knockdown, luciferase reporter assay, qRT-PCR |
Molecular cancer research : MCR |
Medium |
22723309
|
| 2011 |
AEBP1-null female mice display failed mammary gland secretory activation at parturition, with cytoplasmic lipid droplet accumulation in mammary epithelial cells and milk protein accumulation, resulting in 100% neonatal lethality. Transplanting wild-type bone marrow (stromal AEBP1 restoration) rescues the mammary gland defect, indicating AEBP1 controls stromal-epithelial crosstalk. |
AEBP1 knockout mouse model, bone marrow transplantation rescue, histological analysis, immunostaining |
PloS one |
High |
22114697
|
| 2019 |
AEBP1 down-regulation in PTEN-deficient glioma cells (U87MG, U138MG) triggers PARP-1 hyperactivation (parthanatos-like cell death) rather than caspase-dependent apoptosis, with AIF mitochondrial release and nuclear translocation. In PTEN-proficient cells, AEBP1 knockdown induces caspase-dependent apoptosis. AEBP1 positively regulates PI3KCβ by binding the AE-1 element in its promoter, and loss of PI3KCβ causes excessive DNA damage. |
siRNA knockdown, PARP-1 activation assay, AIF translocation imaging, caspase activity assay, ChIP/promoter binding assay, PIK3CB overexpression rescue, PTEN-reconstitution experiment |
Scientific reports |
High |
31601918
|
| 2019 |
AEBP1 promotes AAA development by activating the NF-κB pathway in vascular smooth muscle cells, leading to upregulation of pro-inflammatory factors and matrix metalloproteinases (MMPs). In vivo AEBP1 knockdown via intra-adventitial adenovirus suppresses AAA progression in a rat elastase model. |
Rat AAA model (elastase), in vivo adenoviral AEBP1 silencing, siRNA/overexpression in human vascular smooth muscle cells, NF-κB inhibitor BAY 11-7082, western blot, ELISA |
Journal of atherosclerosis and thrombosis |
Medium |
31462616
|
| 2021 |
ACT001 (parthenolide derivative) blocks TGF-β-activated AEBP1/AKT signaling in glioma stem-like cells. AEBP1 knockdown impairs AKT phosphorylation and GSC proliferation, and constitutively active AKT rescues AEBP1 depletion-inhibited proliferation, placing AEBP1 upstream of PI3K/AKT in GSCs. |
siRNA knockdown, constitutively active AKT rescue, PI3K inhibitor, ACT001 treatment, orthotopic xenograft model, RNA-Seq |
Theranostics |
Medium |
33391492
|
| 2023 |
AEBP1 siRNA knockdown in human retinal pericytes (high glucose conditions) reduces expression of profibrotic markers, and AEBP1 is upregulated in myofibroblast clusters of proliferative diabetic retinopathy fibrovascular membranes, establishing a role for AEBP1 in pericyte-to-myofibroblast transdifferentiation. |
Single-cell RNA-seq (scRNA-seq) of patient membranes, siRNA knockdown in human retinal pericytes under high-glucose conditions, fibrotic marker immunostaining |
JCI insight |
Medium |
37917183
|
| 2023 |
ACLP in cancer-associated fibroblasts (CAFs) of oral squamous cell carcinoma is induced by cancer-cell-derived TGF-β1; ACLP contributes to CAF activation (collagen gel contraction), promotes cancer cell migration and invasion, and attenuates CD8+ T cell migration into tumors. |
Co-culture with OSCC cells and TGF-β1 treatment, collagen gel contraction assay, Boyden chamber migration assay, in vivo tumor formation, immunohistochemistry |
Cancers |
Medium |
37686580
|
| 2022 |
In pancreatic cancer CAFs, ACLP promotes CAF activation and cancer cell invasion via upregulation of MMP1 and MMP3. An ACLP-PPARγ-ACLP positive feedback loop was identified in PDAC CAFs, where ACLP suppresses PPARγ (which normally represses ACLP), sustaining CAF activation. |
siRNA/overexpression in CAFs, CAF activation marker assays, MMP1/MMP3 expression analysis, PPARγ modulation, invasion assays, in vivo metastasis model |
Cancer letters |
Medium |
35732215
|
| 2023 |
AEBP1 knockdown in renal tubular cells and in vivo (UUO model) inhibits renal fibrosis by blocking nuclear β-catenin and its downstream targets (Axin2, Myc, Ccnd1). Constitutively active β-catenin-S33Y restores fibrotic gene expression after AEBP1 silencing, placing AEBP1 upstream of the Wnt/β-catenin pathway in renal fibrosis. |
siRNA knockdown, UUO mouse model, constitutively active β-catenin rescue, western blot, collagen staining, EMT marker analysis |
Human cell |
Medium |
36738398
|
| 2024 |
AEBP1 promotes papillary thyroid cancer progression by directly binding the BMP4 promoter and driving its transcription (established by dual-luciferase reporter and ChIP assay). BMP4 overexpression rescues the growth/invasion inhibition caused by AEBP1 knockout, placing AEBP1 upstream of BMP4 in PTC. |
AEBP1 CRISPR knockout, RNA-sequencing, dual-luciferase reporter assay, chromatin immunoprecipitation (ChIP), BMP4 overexpression rescue, xenograft mouse model |
Neoplasia (New York, N.Y.) |
High |
38237535
|
| 2024 |
AEBP1 transcriptionally represses PRKCA expression (established by luciferase reporter and ChIP). Loss of PI3K/AKT signaling due to reduced PRKCA after AEBP1 silencing leads to neuron ferroptosis and impaired microglia M2 polarization in cerebral ischemia/reperfusion; PRKCA inhibition reverses the protective effects of AEBP1 knockdown. |
siRNA knockdown, luciferase reporter assay, ChIP, PRKCA/PI3K-AKT inhibitor rescue, OGD/R cell model, MCAO mouse model, ROS/GSH/iron assays |
Drug development research |
Medium |
39670965
|
| 2025 |
Autocrine AEBP1 in cancer-associated fibroblasts binds CKAP4 on the CAF surface, activating AKT/PD-L1 signaling to suppress T cell cytotoxicity. Fibroblast-specific AEBP1 deletion enhances T cell cytotoxicity and suppresses tumor growth. A small molecule (Chem-0199) identified by molecular docking disrupts the AEBP1-CKAP4 interaction and synergizes with anti-PD-1. |
RNA-seq, scRNA-seq, fibroblast-specific AEBP1 knockout mice, molecular docking, direct protein-protein interaction assay (AEBP1-CKAP4), AKT/PD-L1 signaling assays, syngeneic tumor models |
Nature communications |
High |
40890191
|
| 2025 |
AEBP1 directly binds the DDR2 promoter to drive its transcription, promoting LPS-induced ferroptosis and inflammatory/M1 microglial polarization via STAT3/P53 signaling in BV2 cells. DDR2 knockdown counteracted the pathological effects of AEBP1. |
Luciferase reporter assay, ChIP assay (AEBP1 binding to DDR2 promoter), siRNA knockdown, STAT3/P53 pathway inhibition, ferroptosis markers, microglial polarization assays |
Archives of biochemistry and biophysics |
Medium |
41083137
|
| 2025 |
AEBP1 directly interacts with PI3K (p110β subunit) as demonstrated by protein docking, co-immunoprecipitation, and surface plasmon resonance (SPR). AEBP1 overexpression impairs insulin signaling and glucose transport in skeletal muscle cells, exacerbating insulin resistance; AEBP1 knockdown reverses these changes. |
Protein docking, co-immunoprecipitation (co-IP), surface plasmon resonance (SPR), AEBP1 overexpression/knockdown in C2C12 and human skeletal muscle cells, insulin signaling assays |
Metabolism: clinical and experimental |
High |
40618921
|
| 2026 |
ACLP (AEBP1 extracellular isoform) regulates pro-fibrotic transcription factors and genes including MRTFB, RUNX2, SM22, and COL1A1 in cardiac fibroblasts. Fibroblast-specific and cardiac-specific Aebp1 knockout in mice improves cardiac function in ischemia and pressure-overload models. In ex vivo human myocardial tissue, ACLP overexpression in non-failing hearts induces pathological remodeling, while AEBP1 knockdown in failing hearts induces structural reverse remodeling. |
Fibroblast-specific knockout mice (myocardial ischemia and pressure-overload models), cardiac-specific knockdown, ex vivo human myocardial tissue culture (ACLP overexpression/AEBP1 KD), RNA sequencing for downstream targets |
Research squarepreprint |
Medium |
42245802
|
| 2026 |
In astrocytes, AEBP1 sequesters NPAS3 in the cytoplasm, reducing NPAS3 binding to the LIPA promoter and thereby repressing LIPA (lysosomal acid lipase) expression. AEBP1-mediated LIPA repression leads to lipid droplet accumulation, excess cholesteryl ester storage, and lysosomal Aβ retention. Astrocyte-specific AEBP1 knockdown ameliorates, while overexpression worsens, amyloid-β pathology in 5×FAD mice. |
Astrocyte-specific AEBP1 knockdown and overexpression in 5×FAD mice, NPAS3 nuclear/cytoplasmic fractionation, LIPA promoter binding (chromatin analysis), LIPA overexpression rescue, hippocampal transcriptomics and metabolomics |
Cell reports |
High |
41880326
|
| 2025 |
Aebp1 loss in osteoprogenitors (OsxCre conditional KO) reduces bone mass and impairs osteoblast differentiation. Mechanistically, Aebp1 deletion attenuates Wnt/β-catenin signaling in bone. Restoration of Wnt/β-catenin by injecting BIO (GSK3 inhibitor) substantially rescues bone mass reduction in Aebp1-KO mice. |
OsxCre conditional knockout mice, siRNA knockdown in primary osteoblasts, Wnt/β-catenin signaling assays, BIO (GSK3 inhibitor) rescue, bone histomorphometry |
JCI insight |
High |
41231548
|
| 2026 |
TWIST1 directly regulates AEBP1 transcription in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis; AEBP1 in turn activates TGFβ signaling to drive fibroblast activation, migration, and proliferation, and induces POSTN expression to promote angiogenesis. Intra-articular AEBP1 modulation and pharmacological TWIST1 inhibition by harmine alters synovial hyperplasia and bone erosion in CIA mice. |
Bulk RNA-seq, proteomics, scRNA-seq, functional assays for FLS activation/migration/proliferation, CIA mouse model with AEBP1 intra-articular modulation, harmine (TWIST1 inhibitor) treatment |
Arthritis & rheumatology (Hoboken, N.J.) |
Medium |
41787682
|
| 2025 |
AEBP1 knockout in CAFs (both isoforms) decreases CAF proliferation, collagen gel contractility, and CAF-mediated tumor cell proliferation. AEBP1 KO downregulates collagen biosynthesis and ECM organization pathways in both mouse and human CAFs, reduces tumor EMT signature in vivo, and enhances anti-PD-1 efficacy. |
CRISPR gene editing (combined KO of both isoforms), collagen gel contractility assay, co-implantation mouse model, RNA-seq, anti-PD-1 combination treatment in syngeneic models |
Molecular cancer therapeutics |
Medium |
41024581
|
| 2025 |
AEBP1 mediates TWIST1-driven endothelial proliferation and COL4A1 upregulation; in atherosclerotic plaques, TWIST1 induces AEBP1 transcription which upregulates COL4A1 to drive endothelial cell proliferation and plaque collagen deposition. |
Single-cell RNA-seq of murine atherosclerotic plaques with inducible Twist1 ECKO, transcriptional analysis of AEBP1-COL4A1 axis |
bioRxivpreprint |
Low |
|
| 2024 |
AEBP1 is a negative regulator of skeletal muscle differentiation; AEBP1 knockdown in human skeletal muscle myoblasts upregulates myogenesis-related genes including MYOG, while ectopic AEBP1 expression suppresses these genes. TGF-β1 treatment upregulates AEBP1 and suppresses muscle differentiation genes. |
siRNA knockdown, ectopic AEBP1 overexpression, transcriptome analysis, qRT-PCR and western blot for myogenesis markers, TGF-β1 treatment, indirect co-culture with OSCC cells |
Scientific reports |
Medium |
39521917
|