| 2008 |
SNPH acts as an axonal mitochondrial docking receptor by interacting with microtubules. Axonal mitochondria containing exogenous or endogenous SNPH lose mobility; deletion of the snph gene in mice results in a substantially higher proportion of mobile axonal mitochondria and reduced axonal mitochondrial density, with enhanced short-term synaptic facilitation rescued by reintroduction of snph. |
snph knockout mouse, time-lapse live imaging, genetic rescue, overexpression in neurons |
Cell |
High |
18191227
|
| 2009 |
Dynein light chain LC8 binds to a specific seven-residue motif on SNPH, enhancing the SNPH–microtubule docking interaction. LC8 recruits to axonal mitochondria via SNPH; deletion of the LC8-binding motif impairs SNPH-mediated mitochondrial immobilization. LC8 stabilizes an alpha-helical coiled-coil within the SNPH microtubule-binding domain against thermal unfolding. LC8 reduces mitochondrial mobility in snph(+/+) but not snph(-/-) neurons, confirming dependence on SNPH. |
Proteomic/biochemical pulldown, mutagenesis, time-lapse live imaging in snph WT and KO neurons, circular dichroism spectroscopy |
The Journal of neuroscience |
High |
19641106
|
| 2011 |
Genetic deletion of snph in SOD1(G93A) ALS mice doubles the proportion of mobile axonal mitochondria but does not alter disease onset, motor function decline, motor neuron loss, gliosis, or lifespan, indicating that reduced mitochondrial transport seen in SOD1(G93A) mice is not a primary driver of rapid-onset fALS pathology. |
Genetic cross of SOD1(G93A) and snph(-/-) mice, time-lapse imaging, behavioral assays, neuropathology |
The Journal of biological chemistry |
High |
21518771
|
| 2015 |
Deletion of SNPH in Shiverer dysmyelinating mice prolongs survival, reduces cerebellar damage, suppresses oxidative stress, and improves mitochondrial health, demonstrating a context-dependent harmful role of mitochondrial anchoring in demyelination. In contrast, SNPH deletion does not benefit EAE (inflammatory MS model), indicating specificity to the progressive/degenerative phase. |
Genetic deletion (SNPH KO) in Shiverer mice and EAE model, survival analysis, neuropathology, oxidative stress assays |
The Journal of neuroscience |
High |
25834054
|
| 2016 |
SNPH levels increase in mature neurons, causing mitochondrial anchoring that produces local ATP depletion and energy deficits in injured axons after axotomy. Genetic deletion of snph enhances mitochondrial transport, replenishes healthy mitochondria in injured axons, rescues energy deficits, and accelerates axon regeneration in vivo after sciatic nerve crush. |
snph KO mice, in vivo sciatic nerve crush, live imaging, ATP measurements, genetic manipulation |
The Journal of cell biology |
High |
27268498
|
| 2016 |
In tumor cells, SNPH (via a network including KIF5B and Miro1/2) anchors mitochondria to the cortical cytoskeleton and thereby suppresses mitochondrial trafficking, cell motility, chemotaxis, and metastasis in vivo. SNPH shRNA knockdown increases mitochondrial speed and distance travelled, repositions mitochondria to the cortical cytoskeleton, and promotes metastasis. |
Genome-wide shRNA screen, time-lapse mitochondrial imaging, chemotaxis assays, in vivo metastasis models |
Nature communications |
High |
27991488
|
| 2017 |
Stressed mitochondria are removed from axons through bulk release of SNPH from stressed mitochondria onto a new class of mitochondria-derived cargos that share retrograde transport on late endosomes toward the soma, independently of Parkin, Drp1, and autophagy. This SNPH-release mechanism is activated during early disease stages in ALS- and AD-linked neurons. |
Immuno-electron microscopy, super-resolution imaging, live imaging, genetic manipulation (Parkin/Drp1/autophagy KO/KD), snph KO neurons |
Neuron |
High |
28472658
|
| 2017 |
Mitochondrial SNPH (alternatively spliced isoform targeted to tumor cell mitochondria) buffers oxidative stress and maintains complex II-dependent bioenergetics, sustaining local tumor cell proliferation while restricting mitochondrial redistribution to the cortical cytoskeleton and limiting tumor cell motility. Hypoxia acutely lowers SNPH levels, shifting cells from proliferative to invasive phenotype. |
Isoform characterization, SNPH KD/KO, xenograft and syngeneic tumor models in vivo, metabolic assays, live mitochondrial imaging |
The Journal of clinical investigation |
High |
28891816
|
| 2018 |
SNPH is ubiquitinated by the E3 ligase CHIP (STUB1) on Lys111 and Lys153 within its microtubule-binding domain. This ubiquitination does not cause protein degradation but anchors SNPH on tubulin to inhibit mitochondrial motility and dynamics. Ubiquitination-defective SNPH mutants (K111R or K153R) increase mitochondrial speed and distance, reposition mitochondria to the cortical cytoskeleton, increase Drp1 recruitment, and enhance tumor chemotaxis, invasion, and metastasis in vivo. |
Global proteomics screen, site-directed mutagenesis (K111R, K153R), in vitro ubiquitination assay, mitochondrial motility imaging, in vivo metastasis models |
Cancer research |
High |
29898993
|
| 2019 |
SNPH is normally excluded from dendrites and targeted to axons. In Shiverer mice (progressive MS model), SNPH is misplaced into dendrites of Purkinje cells. Reconstituting dendritic SNPH intrusion in SNPH-KO mice by viral transduction sensitizes Purkinje cells to excitotoxicity upon climbing fiber stimulation. In vitro, overexpression of SNPH in dendrites causes excitotoxicity via NMDA receptor activation, reduces mitochondrial calcium uptake, and blocks somal mitophagy. |
In vivo viral transduction, SNPH-KO mice, live-cell imaging, electrophysiology, calcium imaging, Purkinje cell viability assays |
Cell reports |
High |
31618636
|
| 2021 |
FUS co-localizes with the mitochondrial tethering protein SNPH in neurons. Mutations in FUS alter this co-localization and are associated with changes in mitochondrial numbers and transport in primary neurons and zebrafish models. |
Co-localization (immunofluorescence), primary neuron and zebrafish overexpression models, mitochondrial transport assays |
Scientific reports |
Low |
34193962
|
| 2022 |
IL-1β and NMDA each individually trigger dendritic SNPH intrusion in hippocampal neurons. They interact synergistically: blocking NMDAR with MK-801 prevents IL-1β from triggering dendritic SNPH intrusion, and decoupling IL-1β/NMDAR interaction with tyrosine inhibitors prevents either stimulus from causing intrusion. Neuronal toxicity caused by IL-1β or NMDA is strongly ameliorated in SNPH-/- neurons, placing SNPH downstream of IL-1β/NMDAR crosstalk as the effector of excitotoxicity. |
Primary hippocampal cultures from SNPH-/- and WT mice, pharmacological antagonists (MK-801, tyrosine inhibitors), immunofluorescence, cell viability assays |
The Journal of neuroscience |
Medium |
35970564
|
| 2023 |
SNPH is expressed in oligodendrocyte precursor cells and mature oligodendrocytes and is present in the myelin sheath in vivo. Netrin-1 increases redistribution of SNPH to oligodendrocyte processes during myelin basic protein-positive membrane expansion, and SNPH clusters at the oligodendrocyte plasma membrane at sites of adhesion with netrin-1-coated beads where mitochondria are retained. |
Immunofluorescence, live imaging, netrin-1-coated microbead adhesion assay, in vitro oligodendrocyte cultures, in vivo myelin fractionation |
Glia |
Medium |
37272718
|
| 2023 |
SNPH knockdown in tumor-bearing mice increases the speed and distance travelled by mitochondria in PMN (neutrophils/PMN-MDSCs), elevates rates of oxidative phosphorylation and glycolysis, and increases adenosine generation, resulting in enhanced spontaneous PMN migration and increased metastasis in SNPH-KO mice. |
SNPH-KO mice, mitochondrial motility imaging in PMN, metabolic flux assays, spontaneous migration assays, in vivo metastasis measurement |
Cancer immunology research |
Medium |
36548516
|
| 2024 |
In zebrafish, miR-146b directly suppresses expression of snphb (SNPH ortholog). CRISPR/Cas9 manipulation and single-cell electroporation of the miR-146b-snphb axis enhances axonal mitochondrial trafficking and promotes Mauthner cell axon regeneration and functional recovery after injury. |
CRISPR/Cas9, single-cell electroporation, in vivo live imaging of mitochondrial transport, escape response behavioral assay in zebrafish |
Neuroscience bulletin |
Medium |
39645618
|
| 2026 |
HIF-1α transcriptionally activates miR-130a-3p, which targets SNPH mRNA to suppress SNPH protein. SNPH downregulation promotes ROS production, activating the AKT/cdc42/PAK1/Cofilin cascade, leading to filopodia formation and increased CRC cell migration and invasion. SNPH overexpression increases mitochondrial fusion and suppresses liver metastasis in vivo. |
Luciferase reporter assay (HIF-1α→miR-130a-3p→SNPH), ROS measurement, AKT/cdc42/PAK1/Cofilin pathway assays, filopodia imaging, in vivo xenograft metastasis model |
Cell death & disease |
Medium |
41888092
|
| 2026 |
BHD treatment activates the Akt/PAK5/SNPH signaling cascade, augmenting mitochondrial recruitment to injured axons after ischemic stroke. Co-immunoprecipitation and molecular docking indicate PAK5 interacts with SNPH. Inhibition of Akt abrogates both neuroprotection and SNPH-mediated mitochondrial recruitment. |
Co-immunoprecipitation, molecular docking, surface plasmon resonance, RNA-seq, Western blot, MCAO mouse model with Akt inhibition |
Journal of ethnopharmacology |
Medium |
42134501
|
| 2025 |
In primary neuronal cultures, p-Tau kinase inhibitors and Tau-KO both completely abolish dendritic SNPH intrusion (DSI), placing tau hyperphosphorylation upstream of SNPH mislocalization into dendrites in a progressive MS model, and establishing DSI as a downstream effector of tauopathy-driven excitotoxicity. |
Primary neuronal cultures, pharmacological p-Tau kinase inhibitors, Tau-KO, immunofluorescence for dendritic SNPH localization |
bioRxivpreprint |
Medium |
bio_10.1101_2025.09.05.674541
|