| 2008 |
SEMA3F forms a complex with NRP2 (neuropilin-2) and plexin A1, triggering a signaling cascade in which ABL2/ARG tyrosine kinase directly binds the cytoplasmic domain of plexin A1, phosphorylates and activates p190RhoGAP, which inactivates RhoA (GTP→GDP), resulting in cytoskeletal collapse and inhibition of cell migration in glioma and endothelial cells. |
Co-immunoprecipitation, in vitro kinase assay, siRNA knockdown of ABL2 and p190RhoGAP, dominant-negative ABL2 mutant overexpression, RhoA activity assay |
The Journal of biological chemistry |
High |
18660502
|
| 2003 |
SEMA3F inhibits cell attachment, spreading, lamellipodia extension, and membrane ruffling in breast cancer cells; these effects are mediated through NRP1 in MCF7 cells and NRP2 in C100 cells, and are antagonized by VEGF, which has opposite pro-adhesive effects. SEMA3F binds NRP2 with ~10-fold greater affinity than NRP1. |
Cell adhesion/spreading assays, blocking anti-NRP1/NRP2 antibodies, time-lapse microscopy of Rac1-GFP, receptor expression profiling |
Neoplasia (New York, N.Y.) |
High |
12659673
|
| 2005 |
SEMA3F exerts a chemorepulsive effect on motile breast cancer cells via NRP2, while in less motile MCF7 cells (NRP1-only) it inhibits E-cadherin- and β-catenin-mediated cell contacts at the membrane, reducing spreading and proliferation without inducing motility. |
3D culture migration assay, neurobiological stripe assay adapted for tumor cells, anti-NRP1/NRP2 blocking antibodies, immunofluorescence for E-cadherin and β-catenin |
Neoplasia (New York, N.Y.) |
High |
15802023
|
| 2007 |
SEMA3F expression decreases integrin-linked kinase (ILK) kinase activity, activated αVβ3 integrin levels, adhesion to vitronectin, and downstream phospho-ERK1/2, phospho-AKT, and phospho-STAT3 signaling; it also reduces HIF-1α protein (via inhibition of AKT-driven translation initiation) and VEGF mRNA levels, and suppresses tumor microvessel density in vivo. |
Stable retroviral transfection, inducible expression systems, ILK kinase assay, ILK siRNA, phospho-protein immunoblotting, HIF-1α mRNA/protein degradation assays, nude mouse xenograft with microvessel density quantification |
Cancer research |
High |
17875711
|
| 2005 |
SEMA3F antitumor activity in vivo (NCI-H157 lung cancer orthotopic model) requires NRP2 expression; H460 cells expressing NRP1 but not NRP2 showed no survival benefit, establishing NRP2 as the functional receptor for SEMA3F's antitumor signaling in this context. The effect was associated with loss of activated αVβ3 integrin and reduced MAPK phosphorylation. |
Stable retroviral transfection, orthotopic nude rat tumor model, receptor expression profiling, integrin activation assay, phospho-ERK immunoblotting |
Neoplasia (New York, N.Y.) |
High |
15967098
|
| 2010 |
In the mouse olfactory system, Sema3F is secreted by early-arriving OSN axons and deposited at the anterodorsal olfactory bulb, where it repels later-arriving Nrp2-positive axons, establishing dorsal-ventral topographic map formation through sequential axon arrival and graded complementary expression of Nrp2 and Sema3F. |
Nrp2 and Sema3F knockout mice, in situ hybridization, axon tracing, in vivo olfactory map analysis |
Cell |
High |
20550939
|
| 2017 |
Sema3F signals through the Neuropilin-2/PlexinA3 holoreceptor to mediate homeostatic downscaling of synaptic AMPA receptors (GluA1) in cortical neurons in response to increased neuronal activity; Npn-2 physically associates with AMPA receptors and Sema3F regulates this interaction. |
Co-immunoprecipitation of Npn-2 with GluA1, genetic knockout of Npn-2 and PlexA3, surface AMPAR quantification, electrophysiology, homeostatic scaling assays |
Neuron |
High |
29154130
|
| 2020 |
CRMP2 mediates Sema3F signaling in primary neurons to regulate axon pruning in hippocampus and visual cortex and dendritic spine remodeling; crmp2-/- mice display prominent defects consistent with impaired Sema3F signaling, including ASD-related social behavior changes. |
crmp2-/- knockout mice, in vitro Sema3F signaling assays in primary neurons, stereotyped axon pruning analysis, dendritic spine morphometry, behavioral testing |
EMBO reports |
High |
31919978
|
| 2015 |
SEMA3F acts predominantly through NRP2 to induce lymphatic endothelial cell (LEC) collapse and inhibit lymphangiogenesis; reconstitution of all plexin/neuropilin combinations in LECs showed NRP2 is the primary required coreceptor for SEMA3F signaling in LECs, and re-expression of SEMA3F in orthotopic HNSCC mouse models diminished lymphangiogenesis and lymph node metastasis. |
Recombinant SEMA3F protein, LEC collapse assay, reconstitution of plexin/neuropilin combinations, in vivo lymphangiogenesis assay, orthotopic HNSCC metastasis mouse model |
Cancer research |
High |
25952650
|
| 2015 |
SEMA3F inhibits invasion and metastasis of colorectal cancer cells through PI3K-AKT-dependent downregulation of the ASCL2-CXCR4 axis; CXCR4 antagonist AMD3100 rescued the metastasis-suppressive effect of SEMA3F knockdown both in vitro and in vivo. |
SEMA3F knockdown/overexpression, invasion assays, xenograft metastasis model, CXCR4 antagonist (AMD3100) rescue, PI3K-AKT pathway inhibition |
The Journal of pathology |
High |
25866254
|
| 2012 |
RORα directly regulates SEMA3F transcription; chromatin immunoprecipitation and luciferase reporter assays showed RORα binds the SEMA3F promoter, and SEMA3F knockdown in RORα-expressing cancer cells rescued aggressive 3D phenotypes and tumor invasion, placing SEMA3F downstream of RORα as a mediator of tumor suppression. |
Chromatin immunoprecipitation (ChIP), luciferase reporter assay, siRNA knockdown, 3D culture morphogenesis assay, nude mouse tumor model |
Cancer research |
High |
22350413
|
| 2007 |
SEMA3F directly binds to the cytoplasmic loop domain of connexin 43 (Cx43), controlling Cx43 localization at the plasma membrane and gap junctional intercellular communication (GJIC); siRNA knockdown of SEMA3F in IAR20 cells reduced membrane-associated Cx43 and GJIC activity. |
Yeast two-hybrid complementation and screening, immunofluorescence co-localization, siRNA knockdown of SEMA3F, GJIC functional assay |
The Journal of membrane biology |
Medium |
17665084
|
| 2003 |
Sema3F expressed by COS1 cell clusters placed on neocortical slices repels Nrp2-positive GABAergic neurons migrating from the ganglionic eminence; in vivo ectopic Sema3F expression diverts Dlx2-positive cells to the upper intermediate zone, demonstrating a role for Sema3F-Nrp2 interaction in sorting GABAergic interneurons during neocortical development. |
COS1 cell cluster placement on embryonic neocortical slices, in vivo ectopic expression, in situ hybridization for receptor expression, anti-NRP2 blocking |
The Journal of comparative neurology |
High |
12454988
|
| 2005 |
SEMA3F promoter is regulated epigenetically; methylation of a specific region (position −3850 to −3644) correlates with loss of expression in lung cancer cell lines, and histone deacetylase inhibition with Trichostatin A is more effective than demethylation (5-aza-2'-deoxycytidine) in restoring SEMA3F expression, indicating chromatin remodeling is the primary epigenetic mechanism of repression. |
Southern blot, methylation-specific PCR, transcriptional initiation site mapping, Trichostatin A and 5-aza-2'-deoxycytidine treatment, RT-PCR expression analysis |
Biochimica et biophysica acta |
Medium |
16005989
|
| 2017 |
In visceral yolk sac epithelial cells, Sema3F signals to inhibit phosphorylation-dependent degradation of Myc, stabilizing Myc and driving expression of the pro-angiogenic miR-17/92 cluster while suppressing Thbs1 (thrombospondin 1), thereby promoting extraembryonic (but not intraembryonic) angiogenesis. |
Sema3f-null mouse characterization, AAV-mediated in vivo overexpression, F9 cell differentiation in vitro, exogenous recombinant Sema3F treatment, Myc phosphorylation/degradation assays, miRNA expression profiling, Thbs1 and Vegf pathway analysis |
Arteriosclerosis, thrombosis, and vascular biology |
High |
28729362
|
| 2021 |
SEMA3F signaling through PLXNA1-A3 receptors guides GnRH neurons and olfactory/vomeronasal nerve fibers; loss-of-function variants in SEMA3F and PLXNA3 identified in IHH patients were functionally validated in HEK293T cells as deleterious, and SEMA3F/PLXNA3 were shown to be expressed along the olfactory nerve and GnRH neuron migratory pathway in early human fetal development. |
Exome sequencing of IHH patients, transient transfection functional assays in HEK293T, fluorescent immunohistochemistry on human fetal tissue |
Genetics in medicine |
Medium |
33495532
|
| 2017 |
Sema3f protects against subretinal neovascularization in vivo; AAV-mediated overexpression of Sema3f reduced pathological neovascularization by 56% in the Vldlr-/- model and intravitreal Sema3f injection reduced choroidal neovascularization by 30% in the laser-induced CNV model. |
AAV overexpression in Vldlr-/- mice, intravitreal recombinant protein injection in laser-induced CNV mouse model, neovascularization quantification |
EBioMedicine |
Medium |
28373097
|
| 2025 |
Furin-mediated proteolytic processing is required for SEMA3F function; missense variants identified in a hearing-loss patient reduced furin-mediated processing of SEMA3F and abolished its ability to collapse the filamentous actin cytoskeleton in HUVECs. Inner ear-specific Sema3f knockout mice showed hearing loss with abnormal spiral ganglion neuron projections. |
In vitro furin cleavage assay with variant SEMA3F proteins, F-actin collapse assay in HUVECs, inner ear-specific Sema3f knockout mice, auditory brainstem response and DPOAE testing, spiral ganglion neuron projection analysis |
Molecules and cells |
High |
39909336
|
| 2012 |
Sema3F downregulates p53 expression in primary hippocampal neurons, contributing to axonal growth cone collapse; overexpression of p53 partially reversed Sema3F-induced growth cone collapse, and p53 inhibition/siRNA knockdown alone induced collapse, establishing p53 as a downstream mediator of Sema3F's collapsing activity. |
Primary hippocampal neuron culture, Sema3F treatment, p53 siRNA knockdown, p53 inhibitor, p53 overexpression, growth cone morphometry |
International journal of clinical and experimental pathology |
Low |
22977659
|
| 2020 |
lncRNA FAM83C-AS1 epigenetically silences SEMA3F by stabilizing EZH2 protein through recruitment of ZRANB1, leading to increased H3K27me3 methylation at the SEMA3F promoter; SEMA3F is required for the tumor-suppressive effects of FAM83C-AS1 knockdown in colorectal cancer. |
EZH2 stabilization assay, H3K27me3 ChIP at SEMA3F promoter, ZRANB1 co-IP, FAM83C-AS1 knockdown with SEMA3F rescue in vitro and in vivo |
Aging |
Medium |
33109776
|
| 2025 |
A bispecific antibody that dimerizes PLXNA1 and NRP2 (the SEMA3F receptor complex) mimics NRP2-mediated SEMA3F signaling, suppressing phospho-AKT, oncogene expression, and cell proliferation; structural studies showed the bsAb binds PLXNA1/NRP2 at sites distinct from the SEMA3F-binding site but allows proper receptor complex formation for signaling. |
Bispecific antibody engineering, receptor dimerization assay, phospho-AKT assay, cell proliferation assay, structural analysis of antibody-receptor binding |
The Journal of biological chemistry |
Medium |
41391772
|