| 2012 |
CAMSAP3 (Nezha) and CAMSAP2 co-cluster at the minus ends of noncentrosomal microtubules in epithelial cells, stabilizing them. Depletion of both CAMSAPs caused marked reduction of microtubules with polymerizing plus ends and induced centrosomal microtubule growth, demonstrating that CAMSAP2 and CAMSAP3 cooperatively maintain noncentrosomal microtubules and suppress centrosomal microtubule-organizing activity. |
siRNA depletion, immunofluorescence, live imaging in epithelial cells |
Proceedings of the National Academy of Sciences of the United States of America |
High |
23169647
|
| 2015 |
CAMSAP3 accumulates at apical cortices of intestinal and Caco-2 epithelial cells and tethers longitudinal microtubule minus ends to these sites, thereby orienting microtubule arrays along the apico-basal axis with minus ends apical. The CC1 domain of CAMSAP3 is required for apical localization; forced mislocalization of CAMSAP3 disrupts epithelial architecture. Loss of CAMSAP3 causes random microtubule orientation and perturbed Golgi/nucleus positioning. |
Camsap3 mutation/siRNA knockdown, domain deletion analysis, forced mislocalization, immunofluorescence in mouse intestinal cells and Caco-2 cells |
Proceedings of the National Academy of Sciences of the United States of America |
High |
26715742
|
| 2016 |
ACF7 (MACF1), a spectraplakin, specifically binds to CAMSAP3 and is required for apical localization of CAMSAP3-decorated microtubule minus ends in intestinal epithelial cells. Knockout of CAMSAP3 (but not CAMSAP2) caused microtubule reorganization into a radial centrosomal array, redistribution of Rab11-positive endosomes from apical surface to pericentrosomal region, and inhibition of actin brush border formation at the apical side. |
Co-IP/binding assay, CAMSAP3 knockout, CAMSAP2 knockout, immunofluorescence, 3D cyst culture |
Journal of cell science |
High |
27802168
|
| 2016 |
ACF7 interacts with CAMSAP3 at the minus ends of noncentrosomal microtubules and anchors them to actin filaments in Caco-2 epithelial cells. This CAMSAP3-ACF7 complex enables noncentrosomal microtubules to crosstalk with F-actin via retrograde flow, maintaining microtubule length and perpendicular orientation to the cell edge, and regulating focal adhesion size and cell migration. |
Co-IP, pulldown, live imaging, siRNA knockdown, focal adhesion/migration assays in Caco-2 cells |
Developmental cell |
High |
27693509
|
| 2016 |
CAMSAP3 binds CG-NAP (centrosome and Golgi localized PKN-associated protein) and plays a role in translocation and clustering of Golgi vesicles in epithelial cells. Depletion of either CAMSAP3 or CG-NAP causes Golgi membrane fragmentation. Stathmin-dependent microtubule dynamics, highest at the perinuclear region, also contributes to perinuclear Golgi distribution. |
Co-IP, siRNA knockdown, immunofluorescence in epithelial cells |
Journal of genetics and genomics |
Medium |
28089391
|
| 2016 |
CDH23-C (C isoform of cadherin-related 23) directly binds the CKK domain of CAMSAP3 via a conserved N-terminal CKK-binding motif (CBM), and this interaction inhibits CAMSAP3-induced microtubule bundle formation. The Usher Syndrome 1D-associated mutation CDH23 R3175H (mouse R55H) reduces CDH23-C interaction with CAMSAP3 both in vivo and in vitro. |
In vitro binding assay, pulldown, in vitro MT bundling assay, site-directed mutagenesis |
Scientific reports |
Medium |
27349180
|
| 2017 |
CAMSAP3 accumulates in the pericentrosomal area and accompanies microtubule release from the centrosome. Depletion of CAMSAP3 prevents MT release and causes MT focusing at centrosomes. CAMSAP3 coordinates with dynein and katanin to regulate MT detachment from the centrosome, identifying it as a key molecule for generation of noncentrosomal microtubules. |
siRNA knockdown, immunofluorescence, live imaging, co-depletion experiments with dynein and katanin in epithelial cells |
Journal of cell science |
Medium |
28386021
|
| 2018 |
CAMSAP3 is enriched in axons of hippocampal neurons where it localizes preferentially along less-acetylated microtubules. CAMSAP3 mutation causes supernumerary axons and increased nocodazole-resistant/acetylated microtubules. CAMSAP3 depletion promotes tubulin acetylation and overexpression inhibits it, indicating CAMSAP3 retains a nonacetylated microtubule pool by interfering with αTAT1 activity. Depletion of αTAT1 abolished CAMSAP3-loss-dependent multiple-axon formation, placing CAMSAP3 upstream of αTAT1 in neuronal polarity maintenance. |
Camsap3 mouse mutation, siRNA knockdown, overexpression, αTAT1 depletion epistasis, immunofluorescence, nocodazole resistance assay in hippocampal neurons |
Proceedings of the National Academy of Sciences of the United States of America |
High |
30190432
|
| 2018 |
CAMSAP3 loss in lung carcinoma cells increases tubulin acetylation, which upregulates Akt (protein kinase B) activity and promotes epithelial-to-mesenchymal transition (EMT) at the transcriptional level. CAMSAP3 therefore functions to suppress Akt activity via microtubule regulation, protecting epithelial phenotype. |
CAMSAP3 deletion, immunoblotting, EMT marker analysis, Akt activity assay in lung carcinoma cell lines |
Journal of cell science |
Medium |
30282632
|
| 2020 |
CAMSAP3 localizes to the base of axonemes and at basal bodies in multiciliated cells (MCCs). In Camsap3 knockdown/hypomorph mice and Xenopus morpholino knockdown, the central microtubule pairs are missing from the majority of cilia, basal body polarity is disorganized, and synchronized ciliary beating is defective. This identifies CAMSAP3 as required for central MT pair assembly/stability in motile cilia. |
Camsap3 hypomorph mouse model, Xenopus morpholino knockdown, immunofluorescence, electron microscopy, ciliary beat analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
32482850
|
| 2021 |
CAMSAP3 concentrates at multiple sites of the cilium-basal body complex including the axonemal basal plate where the central pair of microtubules (CP) initiates. CAMSAP3 dysfunction results in loss of the CP, partial distortion of the basal plate, and failure of multicilia to undergo synchronized beating in tracheal airway epithelial cells. |
Camsap3 mutant mouse model, immunofluorescence, electron microscopy, high-speed videomicroscopy of ciliary beating |
Molecular biology of the cell |
High |
34319756
|
| 2021 |
In mouse oviduct MCCs, CAMSAP3 localizes to the base of cilia in a polarized manner and is critical for intracellular basal body (BB) orientation and for assembly of microtubules interconnecting basal bodies. CAMSAP3 mutation disrupts intracellular coordination of BB orientation without affecting planar cell polarity (PCP) factor localization, placing CAMSAP3 function downstream of or parallel to PCP signaling. |
Camsap3 mutant mice, immunofluorescence, super-resolution microscopy, genetic comparison with CELSR1 mutants |
Journal of cell science |
Medium |
33468623
|
| 2021 |
In ependymal cells, CAMSAP3 concentrates at apical domains to generate MT networks. Camsap3-mutated mice exhibit narrowed lateral ventricles due to failure of ependymal cells to broaden their apical domain. mTORC1 activity, required for ependymal cell growth, is downregulated in mutant cells, and lysosomes (which activate mTORC1) are reduced at apical regions where MT networks are disorganized, linking CAMSAP3-dependent MT organization to mTORC1 signaling and ventricle shaping. |
Camsap3 mutant mouse, immunofluorescence, lysosome localization assay, mTORC1 activity measurement, apical domain morphometry |
Development (Cambridge, England) |
Medium |
33462112
|
| 2021 |
In mouse proximal convoluted tubules, CAMSAP3 mutation perturbs microtubule arrays and activates mechanosensors YAP and PIEZO1, leading to enhanced cell proliferation, cell flattening, and cyst formation. This places CAMSAP3-mediated microtubule networks upstream of mechanosensitive YAP/PIEZO1 signaling in renal tubule morphology maintenance. |
Camsap3 mutant mice, immunofluorescence, YAP/PIEZO1 activity assays, histology |
Scientific reports |
Medium |
33712686
|
| 2021 |
CAMSAP3 knockout promotes lung cancer cell senescence-associated phenotypes and G1 cell cycle arrest. Mechanistically, phosphorylated ERK is markedly downregulated in CAMSAP3-deleted cells, suppressing cyclin D1. Proteomic analysis identified vimentin as a scaffold required for CAMSAP3-modulated ERK signaling. Full-length CAMSAP3 abrogates these phenotypes. |
CAMSAP3 CRISPR knockout, immunoprecipitation/mass spectrometry, Western blotting, xenograft model |
Cancer medicine |
Medium |
34724356
|
| 2023 |
Paracingulin (CGNL1), but not PLEKHA7, recruits CAMSAP3 to tight junctions. GST pulldown shows CGNL1 interacts directly with CAMSAP3 via their respective coiled-coil regions. Knockout of CGNL1 causes loss of junctional CAMSAP3, disorganized cytoplasmic microtubules, irregular nuclei alignment, altered cyst morphogenesis, and disrupted planar apical microtubules. Ultrastructure expansion microscopy shows CAMSAP3-capped microtubules are tethered to junctions by the ZO-1-associated pool of CGNL1. |
GST pulldown, CGNL1/PLEKHA7 knockout, ultrastructure expansion microscopy, immunofluorescence, 3D cyst culture, in vivo mouse intestinal epithelium |
Journal of cell science |
High |
37013686
|
| 2023 |
CAMSAP3 interacts with nucleolin (NCL) to regulate HIF-1α mRNA stabilization. In CAMSAP3-knockout NSCLC cells, HIF-1α expression is upregulated along with VEGFA and MMPs 2 and 9, increasing invasion and angiogenesis. These effects were attenuated by reintroduction of wild-type CAMSAP3. |
CAMSAP3 CRISPR knockout, immunoprecipitation, mass spectrometry, RNA immunoprecipitation, qRT-PCR, in vivo xenograft |
Life sciences |
Medium |
37019300
|
| 2024 |
CAMSAP3 forms dimers through its C-terminal α-helix domain. This dimerization enhances the microtubule-binding affinity of the CKK domain and enables the CKK domain to regulate microtubule dynamics. The combined action of the microtubule-binding domain (MBD) and the C-terminal α-helix enables CAMSAP3 to decorate minus ends and achieve dynamic regulation of microtubule minus ends. |
Biochemical dimerization assays, domain deletion/mutagenesis, in vitro microtubule binding and dynamics assays |
Journal of cell science |
High |
39479887
|
| 2024 |
CAMSAP3 interacts with HMGB1, particularly with its acetylated form. In the presence of the HDAC inhibitor trichostatin A (TSA), CAMSAP3-HMGB1 complex formation is elevated, facilitating HMGB1 cytoplasmic translocation and secretion, thereby inducing autophagic cell death. CAMSAP3 knockout abolishes TSA-mediated autophagic cell death in lung cancer cells. |
CRISPR-Cas9 knockout, immunoprecipitation, proteomics, immunofluorescence, autophagic detection assays |
Biochimica et biophysica acta. General subjects |
Medium |
38598971
|
| 2024 |
CAMSAP3 is essential for proper localization of the microtubule-dependent endosomal-lysosomal system. CAMSAP3 depletion causes EGFR translocation to the perinuclear MTOC, blocking plasma membrane recycling and promoting lysosomal EGFR degradation, thereby reducing EGFR signaling and increasing osimertinib resistance in NSCLC. |
CAMSAP3 siRNA knockdown and overexpression, immunofluorescence, in vitro and xenograft drug sensitivity assays |
Cell death & disease |
Medium |
41381443
|
| 2025 |
Camsap3-mediated microtubules are present in transzonal projections (TZPs) of granulosa cells extending to oocytes in ovarian follicles. Camsap3 knockout mice are infertile and lack ovulation; their follicles show reduced TZP numbers, disorganized TZP microtubules, and decreased granulosa cell-oocyte contact, identifying CAMSAP3 as required for TZP architecture and follicle maturation. |
Camsap3 knockout mice, super-resolution microscopy, follicle counting, fertility assays |
iScience |
Medium |
42199928
|