| 2009 |
KIF15 (Kif15/Hklp2) cooperates with Eg5 to promote bipolar spindle assembly and centrosome separation; this activity requires both the KIF15 motor domain and its interaction with the microtubule-associated protein TPX2, consistent with a Kif15-TPX2 complex crosslinking and sliding antiparallel microtubules apart. |
RNAi knockdown, ectopic overexpression, live-cell imaging, co-immunoprecipitation; epistasis with Eg5 inhibition |
Current biology : CB |
High |
19818618
|
| 2000 |
KIF15 (Hklp2) was identified as a binding partner of the Ki-67 antigen (pKi-67); the interaction is mediated by the forkhead-associated (FHA) domain of Ki-67 and residues 1017–1237 of Hklp2, which are phosphorylated by mitotic but not interphase cell extracts; the complex localizes to the periphery of mitotic chromosomes near centromeres. |
Yeast two-hybrid screening, in vitro phosphorylation assay with mitotic HeLa extracts, immunofluorescence |
The Journal of biological chemistry |
Medium |
10878014
|
| 2014 |
Full-length human KIF15 is a plus-end-directed processive homotetramer capable of stepping against loads up to 3.5 pN; it is the first kinesin shown to effectively switch microtubule tracks at intersections; KIF15 tetramers can crosslink microtubules independently of TPX2; instead, TPX2 inhibits KIF15 stepping when microtubule-bound. |
In vitro reconstitution of full-length hKIF15 and hTPX2, single-molecule TIRF microscopy, optical trapping, microtubule crosslinking assays |
eLife |
High |
24668168
|
| 2014 |
KIF15 accumulates selectively on kinetochore fiber (K-fiber) MT bundles via two intrinsic biochemical properties: (1) autoinhibition by its C-terminal domain, and (2) a nonmotor MT-binding site enabling crosslinking; two-MT binding relieves autoinhibition and drives KIF15 accumulation and motility on MT bundles but not single MTs, establishing an intrinsic two-step targeting mechanism that does not require TPX2 for loading. |
In vitro MT-binding and sliding assays, single-molecule TIRF, deletion/mutation analysis of KIF15 domains, live-cell imaging |
Current biology : CB |
High |
25264249
|
| 2013 |
Crystal structure of the KIF15 motor domain was solved; the domain contains ADP in the catalytic site but adopts an 'ATP-like' configuration with the neck linker docked to the catalytic core, revealing structural differences from Eg5 that suggest a distinct mode of microtubule crosslinking and sliding. |
X-ray crystallography, biochemical kinetics, microtubule co-sedimentation assays |
Acta crystallographica. Section D, Biological crystallography |
High |
24419385
|
| 2017 |
KIF15 dimers slide antiparallel microtubules apart with gradual force buildup while parallel MT bundles remain stationary; the nonmotor C-terminal tail domain binds the MT E-hook with a rupture force exceeding the motor stall force, enabling productive force generation; a stochastic simulation confirmed the tail domain's role in load storage within the KIF15-MT system. |
Single-molecule optical trapping, in vitro fluorescence-based MT gliding assay, stochastic simulation |
Current biology : CB |
High |
28918951
|
| 2016 |
The C-terminal domain of TPX2 contributes to KIF15 localization to spindle MTs in cells and suppresses KIF15 motor walking in vitro; Kif15-dependent bipolar spindle formation in vivo requires the C-terminal domain of TPX2; GFP-Kif15 puncta move toward the spindle equator at a rate equivalent to MT growth, and paclitaxel suppression of MT growth inhibits Kif15 motility, demonstrating that dynamic microtubules contribute to Kif15 behavior. |
In vitro MT gliding assay with TPX2 C-terminal truncations, live-cell fluorescence imaging, FRAP, paclitaxel treatment |
Molecular biology of the cell |
High |
27852894
|
| 2011 |
In Eg5-inhibited cells, KIF15 (Hklp2) can replace Eg5 in spindle pole separation through a mechanism involving formation of acentrosomal poles enabled by altered microtubule dynamics (TOGp depletion or low-dose nocodazole); resulting bipolar spindles are functional in chromosome segregation. |
Live-cell imaging, RNAi depletion of TOGp combined with Eg5 inhibitor treatment, siRNA knockdown of Hklp2 |
Cell cycle (Georgetown, Tex.) |
Medium |
22024925
|
| 2003 |
In mitotic cells, Kif15 localizes to spindle poles and microtubules during prometaphase to early anaphase and relocates to the actin-based cleavage furrow during cytokinesis; in interphase fibroblasts it localizes to actin bundles; in neurons it associates specifically with bundled microtubule arrays (dendrites, stalled growth cones); migratory neurons show pronounced Kif15 enrichment, suggesting Kif15 limits independent microtubule movements within these arrays. |
Immunofluorescence, cell fractionation, analysis in cultured neurons and developing rodent brain sections |
Journal of neurocytology |
Medium |
14618103
|
| 2018 |
Single-molecule optical trapping defined the KIF15 mechanochemical cycle; KIF15-IN-1 is a potent inhibitor of KIF15 motility; MT gliding powered by KIF15 and Eg5 ceases only when both motors are inhibited simultaneously; pairing KIF15-IN-1 with Eg5 inhibitors synergistically reduces cancer cell growth. |
Single-molecule optical trapping, MT gliding assay, cancer cell viability assay |
Proceedings of the National Academy of Sciences of the United States of America |
High |
29703754
|
| 2019 |
Kinesin-binding protein (KBP) directly inhibits KIF15 motor activity by preventing microtubule binding, as shown by gliding filament and MT co-pelleting assays; KBP overexpression alters mitotic localization of KIF15, decreases spindle length, and causes lagging chromosomes in anaphase; KBP acts as a protein buffer protecting cells from excessive KIF15 activity. |
MT gliding filament assay, MT co-pelleting assay, immunofluorescence, live-cell imaging, overexpression/knockdown |
The Journal of cell biology |
High |
30709852
|
| 2017 |
KBP (kinesin-binding protein) is a specific mitotic interaction partner of Kif15 and promotes Kif15 localization to the spindle equator; both Kif15 and KBP are required for alignment of all chromosomes to the metaphase plate and for assembly of stable kinetochore fibers of correct length. |
Co-immunoprecipitation, immunofluorescence, siRNA knockdown, live-cell imaging |
PloS one |
Medium |
28445502
|
| 2014 |
KIF15 was identified as a novel regulator of α2β1 integrin endocytic trafficking; KIF15 mediates plasma membrane localization of the alternative clathrin adaptor Dab2, thereby impinging on pathways regulating α2 integrin internalization. |
Quantitative fluorescence-microscopy-based RNAi screen (386 genes), siRNA validation, imaging of integrin internalization and Dab2 localization |
Journal of cell science |
Medium |
24659801
|
| 2021 |
Pharmacological inhibition of KIF15-microtubule binding (but not locking KIF15 in a rigor state) reduces the mechanical integrity of K-fibers, demonstrating that KIF15 acts as a microtubule crosslinker to fortify and repair K-fiber bundles and prevent chromosome segregation errors. |
Laser ablation of K-fibers, pharmacological inhibition with KIF15 inhibitors, quantitative imaging of MT splaying |
Molecular biology of the cell |
High |
34668719
|
| 2022 |
In mouse oocyte meiosis, KIF15 localizes with microtubules and is responsible for recruiting HDAC6, NAT10, and SIRT2 to maintain acetylated tubulin levels; disruption of KIF15 reduces K-fiber stability, causes loss of kinetochore-MT attachment, activates the spindle assembly checkpoint (Bub3 and BubR1 not released), and leads to chromosome misalignment and high aneuploidy rates. |
Morpholino/siRNA knockdown, KIF15 inhibitor treatment, co-immunoprecipitation, mass spectrometry, immunofluorescence, spindle assembly checkpoint marker analysis |
Cellular and molecular life sciences : CMLS |
High |
35835966
|
| 2020 |
KIF15 directly binds the N-terminus of AR and AR-V7, prevents their proteasomal degradation by increasing association of deubiquitinase USP14 with AR/AR-V7, and thereby enhances AR signaling; in a reciprocal feedback, transcriptionally active AR stimulates KIF15 expression. |
Co-immunoprecipitation, ubiquitination assay, Western blot, KIF15 inhibitor/siRNA knockdown, xenograft models |
Cancer research |
High |
33277366
|
| 2023 |
KIF15 promotes glycolytic capacity in pancreatic cancer by stabilizing the glycolytic enzyme PGK1; it does so by recruiting deubiquitinase USP10 and enhancing the USP10-PGK1 interaction, thereby reducing PGK1 ubiquitination; this interaction is mediated through the coil2 domain of KIF15. |
Mass spectrometry, co-immunoprecipitation, ubiquitination assay, domain deletion/truncation analysis, ECAR/OCR measurements, Western blot |
Cell death & disease |
High |
36807568
|
| 2022 |
In pancreatic cancer cells, KIF15 interacts with PI3K-C2α to promote integrin β1/FAK signaling and focal adhesion disassembly in a RAB11A-dependent and FAK-Y397-dependent manner; SIRT1-mediated acetylation of KIF15 is required for KIF15 phosphorylation (the key activation event for its motor function); the C-terminal tail of KIF15 is required for PI3K-C2α interaction and RAB11A activation. |
kinesin siRNA library screen for integrin β1 recycling, co-immunoprecipitation, domain truncation analysis, phosphorylation/acetylation assays, FAK signaling readouts |
Cell death & disease |
Medium |
36280663
|
| 2021 |
KIF15 interacts with and stabilizes the DEK proto-oncogene protein in leiomyosarcoma cells by recruiting USP15, which deubiquitylates DEK; KIF15 knockdown increases DEK polyubiquitylation and facilitates its degradation; USP15 overexpression restores DEK stability in a KIF15-dependent manner. |
Co-immunoprecipitation, ubiquitination assay, siRNA knockdown, Western blot for protein stability |
Biochemical and biophysical research communications |
Medium |
34280614
|
| 2018 |
In zebrafish, CRISPR/Cas9-mediated kif15 knockout accelerates axonal outgrowth and regeneration velocity after laser-induced axon injury, reduces axonal branching, confirming that Kif15 limits microtubule sliding in axons and restrains axon elongation in vivo. |
CRISPR/Cas9 knockout in zebrafish, live imaging of motor and sensory neuron development, laser-axotomy regeneration assay |
Traffic (Copenhagen, Denmark) |
Medium |
30411440
|
| 2024 |
PRC1-mediated antiparallel microtubule bundling enhances KIF15-driven spindle assembly: PRC1 loss reduces spindle bipolarity in KIF15-dependent (Eg5-inhibitor-resistant) cells, PRC1 overexpression increases spindle formation efficiency and promotes Eg5-inhibitor resistance; these effects are not reproduced by TPX2, indicating specificity for antiparallel MT bundling in enabling KIF15 activity. |
Sibling cell lines with endogenous Eg5-inhibitor resistance, siRNA knockdown of PRC1/TPX2, overexpression, quantitative imaging of spindle bipolarity |
Molecular biology of the cell |
Medium |
38598297
|
| 2021 |
KIF15 in Sertoli cells associates with microtubules (enriched at apical ectoplasmic specializations) and its RNAi knockdown (~70% reduction) impairs blood-testis barrier function by disrupting organization of MT, actin, vimentin, and septin cytoskeletons, demonstrating that KIF15 coordinates multiple cytoskeletal systems to support spermatid transport. |
RNAi knockdown in primary Sertoli cells, immunofluorescence, tight junction barrier integrity assay |
Endocrinology |
Medium |
33453102
|
| 2024 |
KIF15 interacts with STAT3 and sequesters it in the cytoplasm; KIF15 knockdown reduces STAT3's inhibitory effect on ATG7, thereby upregulating autophagy in radiation-resistant nasopharyngeal carcinoma cells and increasing radiosensitivity; METTL3-mediated m6A methylation of KIF15 mRNA underlies its elevated expression in NPC. |
Co-immunoprecipitation (KIF15-STAT3), STAT3 overexpression rescue, autophagy flux assays, m6A methylation analysis, in vivo tumor model |
Translational oncology |
Medium |
39504712
|
| 2025 |
In dorsal root ganglion sensory neurons, KIF15 physically interacts with Annexin A2; KIF15 knockout increases membrane localization of the TRPA1 channel, leading to cold hypersensitivity; in an oxaliplatin-induced neuropathy model, KIF15 expression is reduced coinciding with increased TRPA1 membrane accumulation, suggesting KIF15 normally limits TRPA1 surface expression via Annexin A2. |
Co-immunoprecipitation (KIF15-Annexin A2 in DRG neurons), Kif15-KO mice, behavioral cold sensitivity assays, membrane fractionation of TRPA1 |
Neuropharmacology |
Medium |
39914618
|
| 2025 |
KIF15 interacts with PSD95 (confirmed by both endogenous and exogenous Co-IP); KIF15 deficiency causes PSD95 to redistribute from the cell membrane to the perinuclear region in neurons, reduces dendritic spine density, decreases excitatory postsynaptic scaffolding (PSD95, NMDA receptors, mEPSC frequency), and upregulates inhibitory scaffold Gephyrin/GABRB1, contributing to mood disorder phenotypes in mice. |
Co-immunoprecipitation (endogenous and exogenous), CRISPR/Cas9 Kif15-/- mice, electrophysiology (mEPSC), immunofluorescence, behavioral assays, zebrafish rescue with Kif15 overexpression |
PLoS genetics |
High |
40892874
|
| 2014 |
Aurora A kinase inhibitors overcome KIF15-dependent resistance to the KIF11 (Eg5) inhibitor SB743921; in a KIF15-dependent resistant cell model, Aurora A inhibition combined with KIF11 inhibition promotes monoastral spindle formation and mitotic catastrophe synergistically, indicating parallel pathways of centrosome regulation by Aurora A and KIF11 that KIF15 can partially substitute. |
Infrared-based cell viability assay, isobologram analysis, live-cell imaging, RNAi-based KIF15-dependent resistance model |
Molecular oncology |
Medium |
24950801
|
| 2023 |
KIF15 knockdown in colorectal cancer cells reduces NRAS protein stability by increasing its ubiquitination; KIF15 interacts with the E3 ubiquitin ligase MDM2 and reduces MDM2-mediated ubiquitination of NRAS, thereby stabilizing NRAS and activating Rac signaling to promote proliferation and migration. |
Co-immunoprecipitation, ubiquitination assay, Western blot, siRNA knockdown, xenograft model |
American journal of cancer research |
Medium |
37970344
|
| 2024 |
In porcine oocytes, KIF15 modulates HDAC6 to regulate tubulin acetylation and microtubule stability; KIF15 deficiency reduces acetylated tubulin, destabilizes spindle microtubules (evidenced by cold depolymerization), causes abnormal spindle morphology and chromosome misalignment, and blocks polar body extrusion. |
KIF15 morpholino/siRNA knockdown, cold-induced microtubule depolymerization assay, immunofluorescence, immunoprecipitation |
Theriogenology |
Medium |
38838614
|
| 2021 |
KIF15 interacts with EGFR and prevents EGFR protein degradation in a Cdc42-dependent manner, thereby enhancing EGFR-MAPK and PI3K/AKT signaling in castration-resistant prostate cancer; KIF15 expression is positively correlated with EGFR protein levels in CRPC tumors. |
Co-immunoprecipitation, Western blot, EGFR degradation assay, Cdc42 perturbation, xenograft model |
Frontiers in oncology |
Medium |
34804913
|
| 2023 |
METTL3 mediates m6A methylation of KIF15 mRNA, stabilizing KIF15 transcript via reduced mRNA decay; VIRMA promotes KIF15 expression in triple-negative breast cancer through m6A-dependent stabilization of KIF15 mRNA. |
RNA immunoprecipitation (RIP-qPCR), m6A methylation assay, lentiviral overexpression/knockdown, mRNA stability assay |
Discovery medicine / Translational oncology |
Medium |
37811616 39504712
|
| 2023 |
In the context of cardiac hypertrophy, FoxO6 transcriptionally activates KIF15 expression; KIF15 upregulation promotes TGF-β1 secretion from cardiomyocytes, which drives fibroblast proliferation and differentiation, thereby contributing to pathological cardiac remodeling. |
FoxO6 knockout and overexpression mouse models, Ang-II cardiac hypertrophy model, KIF15 inhibition rescue, conditioned medium transfer to fibroblasts, in vitro cardiomyocyte/fibroblast co-culture |
MedComm |
Medium |
37799807
|