| 1993 |
GDF3 and GDF9 are novel members of the TGF-β superfamily, predicted to contain a signal sequence for secretion, a tetrabasic proteolytic processing site, and a C-terminal region homologous to known TGF-β superfamily members. Unlike all other superfamily members, GDF3 and GDF9 lack the conserved cysteine residue believed to form the intersubunit disulfide bond, suggesting different subunit interaction mechanisms. |
cDNA cloning, sequence analysis, Northern blot |
The Journal of biological chemistry |
Medium |
8429021
|
| 2005 |
GDF3 inhibits BMP signaling in multiple developmental contexts and interacts physically with BMP proteins. GDF3 is expressed in the node during gastrulation consistent with a BMP-inhibitory role. Gain- and loss-of-function experiments show GDF3 regulates both maintenance of the undifferentiated state and differentiation capacity of embryonic stem cells in a species-specific manner. |
mRNA gain-of-function, reduction-of-function (antisense/RNAi), reporter assays, co-immunoprecipitation/interaction assay, in vivo Xenopus and mouse ES cell experiments |
Development (Cambridge, England) |
High |
16339188
|
| 2006 |
GDF3 signals via the EGF-CFC co-receptor Cripto and can be inhibited by Lefty antagonists in cell culture, similar to Nodal. In Xenopus, GDF3 misexpression induces secondary axis formation and mesendoderm formation. In mice, Gdf3 null mutants show defects in anterior visceral endoderm formation and reduced Nodal expression, placing GDF3 in a Nodal-like signaling pathway. |
Cell-based reporter assays, Xenopus misexpression, mouse knockout analysis, in situ hybridization |
Development (Cambridge, England) |
High |
16368929
|
| 2007 |
GDF3 signaling is mediated by type I receptor ALK4, type II receptors ActRIIA and ActRIIB, and co-receptor Cripto to activate Smad-dependent reporter genes. Native GDF3 precursor is poorly processed and inactive; activity can be unmasked by heterologous prodomains, co-expression with Furin pro-protein convertase, or co-expression with Nodal. GDF1 and GDF3 together represent functional mammalian homologs of Xenopus Vg1, as compound Gdf1/Gdf3 double-knockout mice show more severe AVE and mesoderm defects than either single mutant. |
Luciferase reporter assays, chimeric construct expression, Furin co-expression, genetic compound knockout analysis |
Developmental biology |
High |
17936261
|
| 2008 |
GDF3 acts as a specific BMP inhibitor at physiological expression levels. BMP-inhibitory activity resides redundantly in both the unprocessed precursor form and the mature processed form of GDF3 protein. GDF3 can activate Nodal signaling only at very high (non-physiological) doses of mRNA overexpression, not as recombinant protein at normal doses. |
mRNA overexpression, recombinant protein treatment, dose-response reporter assays, Western blot for protein forms |
Developmental biology |
High |
18823971
|
| 2009 |
Missense variants in GDF3 cause ocular (coloboma, microphthalmia) and skeletal (Klippel-Feil) anomalies in humans. Functional assessment using Western blot and luciferase reporter assays demonstrated appreciable effects of the variants. Antisense morpholino inhibition of zebrafish GDF3 co-ortholog recapitulates patient phenotypes, establishing GDF3 as necessary for ocular and skeletal development. |
Western blot, luciferase reporter assay, zebrafish antisense morpholino knockdown, patient variant characterization |
Human molecular genetics |
High |
19864492
|
| 2011 |
GDF3 activates downstream signaling through associating with ALK7 (Activin receptor-like kinase 7) in a Cripto-dependent fashion. Secreted GDF3 protein from stable CHO-GDF3 cells reduces PC12 cell growth and induces neuronal differentiation. GDF3 protein is distributed mainly in the cytoplasm of expressing cells and in primary hippocampal neurons. |
Co-immunoprecipitation/receptor association assay, stable cell line conditioned medium treatment, immunofluorescence, Western blot |
Molecular and cellular biochemistry |
Medium |
21805089
|
| 2012 |
miR-483-3p targets GDF3 mRNA for translational repression in adipocytes. Manipulation of miR-483-3p levels substantially modulates adipocyte differentiation and lipid storage, with some effects mediated through GDF3 suppression. |
miRNA overexpression/knockdown in vitro, luciferase reporter assay for target validation, adipocyte differentiation assay |
Cell death and differentiation |
Medium |
22223106
|
| 2016 |
Macrophage PPARγ transcriptionally controls GDF3 expression in repair macrophages. GDF3 secreted by macrophages acts as an extrinsic effector on myoblasts to promote muscle progenitor cell fusion and skeletal muscle regeneration. PPARγ-null macrophages fail to upregulate GDF3, and this deficiency impairs muscle regeneration. |
Conditional macrophage-specific PPARγ knockout mice, muscle injury model, ChIP/transcriptional analysis, recombinant GDF3 treatment of myoblasts, fusion assay |
Immunity |
High |
27836432
|
| 2017 |
Maternal (not zygotic) Gdf3 is required for mesendoderm formation and dorsal-ventral patterning in zebrafish. Gdf3 affects left-right patterning by regulating cell morphology in Kupffer's vesicle and southpaw expression in lateral plate mesoderm. Gdf3 maternal-zygotic mutants are refractory to Nodal ligands and Lefty1 repressor, but Activin signaling and constitutively active Alk4/Alk2 remain intact, placing Gdf3 at the same pathway step as Nodal. |
Maternal-zygotic mutant zebrafish, RNA rescue experiments, epistasis analysis with Nodal pathway components, morphological analysis of Kupffer's vesicle |
eLife |
High |
29140250
|
| 2017 |
Gdf3 is an essential cofactor of Nodal signaling during embryonic axis establishment in zebrafish. Maternal-zygotic gdf3 mutants are fully rescued by gdf3 RNA only when co-expressed with endogenous Nodal, indicating Gdf3 acts cooperatively at the same step as Nodal ligands rather than independently. Signaling through constitutively active Alk4 and Alk2 is intact in gdf3 mutants, indicating that Gdf3 functions specifically at the Nodal pathway level. |
Maternal-zygotic mutant zebrafish, lineage-specific RNA targeting rescue experiments, constitutively active receptor epistasis |
eLife |
High |
29140249
|
| 2018 |
In aged mice, repair macrophage-derived GDF3 is markedly downregulated in injured muscle compared to young mice. Supplementation of recombinant GDF3 in aged mice ameliorates the deficient regenerative response, establishing that macrophage-secreted GDF3 is functionally limiting for muscle regeneration during aging. |
Aged vs. young mouse muscle injury model, flow cytometry for macrophage subsets, recombinant GDF3 administration, histological analysis of regeneration |
Aging cell |
Medium |
30003692
|
| 2020 |
GDF3 activates Smad2/Smad3 phosphorylation in macrophages and consequently inhibits NLRP3 expression, mediating anti-inflammatory effects. Recombinant GDF3 suppresses macrophage pro-inflammatory (M1) phenotype and promotes anti-inflammatory (M2) polarization. Blockade of Smad2/Smad3 phosphorylation with SB431542 offsets rGDF3-mediated anti-inflammatory effects. |
Recombinant GDF3 protein treatment of macrophages, Western blot for pSmad2/3, NLRP3 expression assay, pharmacological inhibition of Smad2/3 with SB431542, in vivo endotoxemia mouse model |
Cells |
Medium |
31947892
|
| 2021 |
Brd4 binds to the promoter and enhancers of Gdf3 to facilitate PPARγ-dependent Gdf3 expression in macrophages. Macrophage-derived GDF3 acts as a paracrine signal on adipocytes to suppress lipase expression (ATGL, HSL) and inhibit lipolysis. Myeloid-specific Brd4 knockout reduces GDF3 in adipose tissue macrophages and increases lipolysis. |
ChIP-seq (Brd4 at Gdf3 locus), myeloid-specific Brd4 knockout mice, RNA-seq of adipose tissue macrophages, co-culture/conditioned medium experiments, Western blot for lipases |
JCI insight |
High |
33830083
|
| 2021 |
Recombinant GDF3 promotes macrophage phagocytosis and intracellular bacterial killing by promoting LXRα nuclear translocation. RNA-seq identified CD5L (regulated by LXRα) as the most significantly upregulated gene in rGDF3-treated macrophages. GDF3 failed to enhance bacterial uptake or killing in LXRα-knockout macrophages, placing LXRα downstream of GDF3 in this pathway. |
Recombinant GDF3 treatment of macrophages, RNA-seq, LXRα nuclear translocation assay, LXRα knockout macrophages, bacterial phagocytosis/killing assay, pharmacological LXRα antagonism |
Frontiers in immunology |
Medium |
33679812
|
| 2022 |
GDF3 secreted by cardiac stromal PW1+ cells induces fibroblast proliferation via stimulation of activin-receptor-like kinases. GDF3 is markedly upregulated in ischemic hearts post-MI and detectable in plasma, implicating it as a paracrine cardiokine promoting adverse fibrotic remodeling. |
Secretome bioinformatic analysis, conditioned medium fibroblast proliferation assay, GDF3-enriched conditioned medium functional assay, activin receptor kinase pharmacological inhibition, mouse and human plasma GDF3 measurement |
Circulation |
Medium |
36484260
|
| 2025 |
GDF3 is an agonist of ALK5, ALK7, ACVR2A, and ACVR2B, and an antagonist of BMPR2. Inducible GDF3 loss-of-function in obese mice reduces lipolysis by lowering β3-adrenergic receptor levels and decreasing cAMP/PKA signaling. GDF3 loss improves glucose tolerance and reduces glycemic variability without affecting body weight or energy balance. |
Inducible conditional knockout in adult obese mice, receptor signaling assays (ALK5/ALK7/ACVR2A/ACVR2B/BMPR2 activity), metabolic phenotyping (glucose tolerance, lipolysis, β3-AR/cAMP/PKA measurements) |
Nature communications |
High |
40360531
|
| 2025 |
GDF3 promotes the inflammatory phenotype in adipose tissue macrophages through autocrine GDF3-SMAD2/3 signaling, driving chromatin accessibility toward an inflammatory state by limiting methylation-dependent chromatin compaction. Lifelong systemic or myeloid-specific Gdf3 deletion reduces endotoxemia-induced inflammation. Pharmacological inhibition of SMAD3 with SIS3 mimics Gdf3 deletion and reduces mortality from endotoxemia in old mice. |
Systemic and myeloid-specific Gdf3 knockout mice, scRNA-seq, ATAC-seq of ATMs, SMAD3 pharmacological inhibition (SIS3), BRD4 inhibitor (JQ1) treatment, endotoxemia mortality assay |
Nature aging |
High |
41398392
|