| 2001 |
ESDN/DCBLD2 is a type-I transmembrane protein containing a CUB domain, a coagulation factor V/VIII homology domain, and an LCCL domain, and harbors the longest cleavable secretory signal sequence among eukaryotes. Overexpression of ESDN in 293T cells suppressed BrdU uptake, indicating a role in inhibiting cell proliferation. |
Signal sequence trap cloning, domain analysis, overexpression in 293T cells with BrdU uptake assay |
The Journal of biological chemistry |
Medium |
11447234
|
| 2007 |
DCBLD2 (ESDN) is upregulated in proliferating vascular smooth muscle cells (VSMCs); ESDN overexpression in VSMCs decreased growth, while ESDN knockdown increased VSMC proliferation, establishing ESDN as a regulator of VSMC proliferation. |
VSMC culture with ESDN overexpression and siRNA knockdown; growth curve analysis |
American journal of transplantation |
Medium |
17697260
|
| 2007 |
DCBLD2 is a novel tyrosine phosphorylation target of EGF/EGFR signaling, identified and validated by phosphoproteomics; phosphorylation is blocked by the EGFR inhibitor Iressa. |
cICAT-based LC-MS/MS phosphoproteomics from EGF-treated A431 cells, validated by western blot with EGFR inhibitor |
Proteomics |
Medium |
17570516
|
| 2008 |
Ectopic expression of DCBLD2 in gastric cancer cell lines inhibited colony formation (anchorage-dependent and -independent) and inhibited invasion through collagen matrix, demonstrating a suppressive role in gastric cancer cell proliferation and invasion. |
Ectopic expression in gastric cancer cell lines; colony formation assay, collagen matrix invasion assay |
Molecular cancer research : MCR |
Medium |
18314483
|
| 2010 |
The long signal peptide of DCBLD2 can be dissected into functional N and C subdomains per the NtraC model: the C-domain is sufficient and essential for ER targeting, whereas the N-domain is dispensable and thus available for additional functions. |
Deletion/chimeric construct expression; ER targeting assay |
Molecular bioSystems |
Medium |
21183991
|
| 2013 |
DCBLD2 (ESDN) intracellular tyrosines in YxxP motifs are phosphorylated by Src family kinases (SFKs); phosphorylation at Y565, Y621, Y750, and Y715 (non-YxxP) recruits the SH2 domain of the signaling adaptor CrkL. Antibody-mediated ESDN clustering induces tyrosine phosphorylation and CrkL-SH2 binding. |
Mutagenesis of seven intracellular tyrosines; quantitative mass spectrometry; SH2 domain pulldown; pharmacological SFK inhibition; antibody clustering assay |
FEBS letters |
High |
23770091
|
| 2013 |
ESDN/DCBLD2 promotes VEGF-induced endothelial cell proliferation and migration; it associates with VEGFR-2 and regulates VEGFR-2 complex formation with the negative regulators PTP1B, TC-PTP, and VE-cadherin. Loss of ESDN in EC-specific knockout mice blunted VEGF responses and VEGFR-2 signaling in vivo. |
Global and EC-specific Esdn knockout mice; zebrafish dcbld2 knockdown; Co-IP of ESDN with VEGFR-2, PTP1B, TC-PTP, and VE-cadherin; VEGFR-2 signaling assays |
The Journal of clinical investigation |
High |
24177422
|
| 2014 |
EGFR phosphorylates DCBLD2 at tyrosine 750 (Y750), which lies within a TRAF6-binding motif. Phospho-Y750 recruits TRAF6, leading to increased TRAF6 E3 ubiquitin ligase activity and subsequent AKT activation, thereby promoting EGFR-driven tumorigenesis. |
Phospho-specific antibodies; Co-IP of DCBLD2 Y750 with TRAF6; TRAF6 E3 ubiquitin ligase activity assay; AKT activation assays; tumor xenograft models; Y750 mutagenesis |
The Journal of clinical investigation |
High |
25061874
|
| 2016 |
ESDN/DCBLD2 inhibits insulin receptor signaling by interacting with the insulin receptor and altering its interaction with the regulatory adaptor-E3 ubiquitin ligase pairs APS-c-Cbl and GRB10-NEDD4. Esdn gene deletion enhances insulin-induced AKT and MAPK activation, VSMC proliferation/migration, and improves insulin sensitivity and glucose homeostasis in vivo. |
Esdn knockout mice; in vivo glucose/insulin tolerance tests; Co-IP of ESDN with insulin receptor; western blot for AKT/MAPK phosphorylation; VSMC proliferation/migration assays |
American journal of physiology. Heart and circulatory physiology |
High |
26921437
|
| 2017 |
DCBLD2 intracellular YxxP motifs are phosphorylated by Src family kinases (SFKs; specifically Fyn) and Abl kinase, which differentially promote CRKL-SH2 domain binding to DCBLD2. Site-specific quantitative phosphoproteomics mapped the SFK vs. Abl preferences for individual YxxP sites on DCBLD2. |
HPLC-coupled tandem mass spectrometry; kinase overexpression; CRKL-SH2 pulldown; pharmacological kinase inhibition |
The Biochemical journal |
High |
29025973
|
| 2021 |
DCBLD2 stabilizes β-catenin by phosphorylating GSK3β; accumulated β-catenin is transported to the nucleus to promote EMT-related transcription factor expression, mediating cisplatin-induced metastasis in lung adenocarcinoma. |
siRNA knockdown, western blot for GSK3β phosphorylation and β-catenin nuclear translocation, in vitro migration/invasion assays, in vivo metastasis model with nanoparticle-delivered siRNA |
Cancers |
Medium |
33808696
|
| 2021 |
A homozygous nonsense variant (p.W27*) in DCBLD2 in a patient results in reduced cell proliferation, impaired cell cycle progression, and altered intracellular ROS and Ca2+ levels in patient-derived skin fibroblasts, functionally characterizing this loss-of-function variant. |
Whole-exome sequencing; in vitro functional studies on patient skin fibroblasts (proliferation, cell cycle, ROS, Ca2+ assays) |
Scientific reports |
Medium |
34145321
|
| 2021 |
DCBLD2 binds ITGB1 (integrin β1, a key focal adhesion pathway component) as identified by TAP-MS and confirmed by Co-IP, implicating DCBLD2 in the focal adhesion pathway in colorectal cancer cells. |
TAP-MS affinity purification followed by Co-IP validation |
Frontiers in cell and developmental biology |
Medium |
34095137
|
| 2021 |
In endothelial cells, ESDN/DCBLD2 loss leads to increased E-selectin transcript and protein levels, enhanced melanoma cell adhesion and extravasation, and increased metastasis in Esdn-null mice. ESDN suppresses E-selectin transcription, potentially through STAT3. |
Esdn-null mouse melanoma injection model; endothelial cell adhesion assay; E-selectin mRNA/protein quantification; cimetidine (E-selectin inhibitor) rescue experiment |
Cancer letters |
Medium |
33862151
|
| 2022 |
DCBLD2 inhibits caveolae-dependent endocytosis of PDGFR-β in VSMCs by anchoring PDGFR-β on the cell membrane via competition with Caveolin-1 (Cav-1). DCBLD2 deletion increases PDGFR-β–Cav-1 binding and accelerates PDGF-induced PDGFR-β internalization to lysosomes. |
VSMC-conditional and germline Dcbld2 knockout mice; Co-IP of PDGFR-β with Cav-1 and DCBLD2; biotin surface labeling; membrane/cytosol fractionation; double immunofluorescence |
FASEB journal |
High |
35929441
|
| 2023 |
CD146 protein physically interacts with DCBLD2 and prevents its degradation, thereby stabilizing DCBLD2 and activating downstream PI3K/AKT signaling in breast phyllodes tumor cells. |
Co-immunoprecipitation, pull-down assay, transcriptome and proteomic analysis, functional proliferation/invasion assays |
Cancer communications (London, England) |
Medium |
37856423
|
| 2024 |
DCBLD2 deletion in endothelial cells inhibits insulin receptor recycling in a Rab11-dependent manner, reduces membrane InsR levels, and attenuates InsR/PI3K/Akt signaling, exacerbating endothelial dysfunction and vascular remodeling in diabetic mice. |
Endothelium-specific and global Dcbld2 knockout mice; streptozotocin-induced diabetes model; Co-IP for InsR interactions; membrane/cytoplasm fractionation; glycolytic rate assay; western blot |
The FEBS journal |
High |
38872483
|
| 2025 |
DCBLD2 and VEGFA act synergistically in choroidal endothelial cells to enhance proliferation, migration, and angiogenic tube formation; DCBLD2 potentiates VEGFA-driven effects by increasing VEGFR2 phosphorylation and activating downstream AKT and ERK1/2 signaling cascades. |
Functional validation in choroidal endothelial cells (proliferation, migration, tube formation assays); VEGFR2 phosphorylation western blot; AKT/ERK1/2 activation assays |
Journal of proteome research |
Medium |
41110167
|
| 2026 |
DCBLD2 loss in endothelial cells enhances TGF-β signaling by increasing clathrin-mediated endocytosis of TGF-β receptor (TGF-βR); DCBLD2 interacts with TGF-βR and clathrin, and its loss promotes EndMT. DCBLD2 knockout mice show higher prevalence of calcific aortic valve disease. |
DCBLD2 knockout mice; immunoprecipitation of DCBLD2 with TGF-βR and clathrin; western blot for TGF-β pathway phosphorylation; Pitstop 2 clathrin inhibitor rescue; immunofluorescence; endothelial migration assay |
Journal of molecular and cellular cardiology |
Medium |
42178133
|
| 2026 |
DCBLD2 overexpression inhibits osteogenic differentiation of BMSCs and suppresses PI3K/AKT pathway activation; miR-34c-3p directly binds DCBLD2 mRNA (confirmed by AGO2-RIP and dual-luciferase assay) to suppress its expression and thereby promote osteogenic differentiation. |
Overexpression and knockdown of DCBLD2 in BMSCs; ALP and alizarin red staining; PI3K activator rescue; AGO2-RIP; dual-luciferase reporter assay |
Journal of molecular histology |
Medium |
41721921
|
| 2024 |
The signal sequence (SS) of DCBLD2 is not cleaved in the mature protein and directly interacts with VEGFR2 via its hydrophobic 'traC' segment (specifically the L5VL5/L10 sequence). The SS promotes VEGF-induced signaling, and a synthetic traC-derived peptide (L10) enhances VEGFR2 signaling in vitro and promotes angiogenesis and blood flow recovery in vivo. |
Co-immunoprecipitation of DCBLD2 domain constructs with VEGFR2 in HEK293T and endothelial cells; synthetic peptide signaling assays; matrigel plug and corneal micropocket angiogenesis assays; hindlimb ischemia model |
bioRxivpreprint |
Medium |
|