| 1995 |
BM88/CEND1 is a neuron-specific integral membrane protein of approximately 22 kDa, composed of two polypeptide chains linked by disulfide bridges, not glycosylated, and associated with mitochondrial limiting membranes, endoplasmic reticulum, small vesicles, and synaptic densities in neurons. |
Western blot, immunopurification, electron microscopy, Triton X-114 phase separation, N-glycanase digestion, protease digestion |
Journal of neuroscience research |
High |
7616611
|
| 1991 |
BM88/CEND1 is an integral membrane protein with at least one small extramembranous domain; it cannot be solubilized by phospholipase C, indicating it is not GPI-anchored, and is anchored via a polypeptide transmembrane chain. |
Immunopurification, hydrophobic chromatography, Triton X-114 phase separation, phospholipase C digestion, protease digestion, gel filtration, SDS-PAGE |
Journal of neurochemistry |
High |
1704420
|
| 1995 |
Overexpression of BM88/CEND1 in Neuro-2a neuroblastoma cells promotes morphological differentiation (enhanced process outgrowth), slows cell division, and accelerates differentiation in the presence of agents such as sucrose and retinoic acid, including induction of neurofilament protein expression. |
Stable transfection, morphological analysis, neurofilament immunostaining, cell growth assays |
The Journal of biological chemistry |
Medium |
7775480
|
| 2006 |
BM88/CEND1 overexpression in Neuro-2a cells causes cell cycle arrest at the G0/G1 restriction point via increased p53 levels, accumulation of hypophosphorylated retinoblastoma protein (pRb), and decreased/cytoplasmic relocalization of cyclin D1; conversely, BM88 siRNA knockdown accelerates proliferation and impairs retinoic acid-induced differentiation. |
Stable transfection, BrdU incorporation, FACS, Western blot, immunofluorescence for cyclin D1 localization, RNA interference |
The Journal of biological chemistry |
High |
16893893
|
| 2007 |
BM88/CEND1 is downstream of the proneural gene Mash1 (forced Mash1 expression induces endogenous BM88), and BM88 is sufficient to drive spinal cord neural precursors to exit the cell cycle, down-regulate Notch1, and commit to neuronal differentiation; BM88 siRNA knockdown enhances cell cycle progression and impairs neuronal differentiation. |
Gain-of-function overexpression in chick spinal cord, siRNA knockdown, immunohistochemistry for neuronal markers and Notch1, BrdU incorporation |
Proceedings of the National Academy of Sciences of the United States of America |
High |
17971443
|
| 2008 |
BM88/CEND1 overexpression diminishes P2Y receptor-induced intracellular calcium mobilization from IP3-sensitive stores in both Neuro-2a and HeLa cells, and reduces C2-ceramide-induced calcium release and apoptosis; BM88 knockdown facilitates proliferation under both stimulating and non-stimulating conditions. |
Calcium imaging, stable transfection, siRNA knockdown, P2Y receptor pharmacology, C2-ceramide apoptosis assay |
Neuropharmacology |
Medium |
19061903
|
| 2008 |
Trichostatin A (HDAC inhibitor) specifically induces Cend1 transcription in neuronal (Neuro-2a) but not non-neuronal cells, and Cend1 knockdown alleviates both the anti-proliferative and differentiation effects of TSA, placing Cend1 downstream of HDAC activity in the neuronal differentiation program. |
TSA treatment, RT-PCR, siRNA knockdown, cell proliferation and differentiation assays |
FEBS letters |
Medium |
18258204
|
| 2010 |
Cend1 knockout mice show increased proliferation of cerebellar granule cell precursors, delayed radial granule cell migration, and impaired Purkinje cell differentiation, with altered expression of Patched1, cyclin D1, reelin, and BDNF, leading to motor coordination deficits. |
Cend1 knockout mouse generation, histology, BrdU incorporation, immunohistochemistry, motor behavior tests |
Molecular and cellular neurosciences |
High |
20153830
|
| 2013 |
BM88/Cend1 physically interacts with RanBPM (Ran-binding protein M); this tripartite complex with Dyrk1B affects cyclin D1 levels and cell cycle progression: RanBPM reverses BM88/Cend1-dependent or Dyrk1B-dependent cyclin D1 downregulation by stabilizing cyclin D1 in the nucleus, but co-expression of Cend1 reverts RanBPM-dependent Dyrk1B cytosolic retention and degradation, resulting in cyclin D1 destabilization. |
Co-immunoprecipitation, transient co-expression, BrdU incorporation, Western blot, subcellular fractionation |
PloS one |
Medium |
24312406
|
| 2013 |
Full-length Ahi1 (but not N-terminal fragments) binds Hap1A in a phosphorylation-regulated manner, and also binds Cend1 as identified by mass spectrometry of cytosolic Ahi1 immunoprecipitates; Ahi1 loss reduces Cend1 protein levels in hypothalamus of Ahi1 KO mice, and overexpressed Ahi1 stabilizes Cend1 in cultured cells; Cend1 overexpression rescues neurite extension defects in hypothalamic neurons from Ahi1 KO mice. |
Mass spectrometry of immunoprecipitates, Western blot, overexpression rescue, Ahi1 KO mouse analysis, neurite extension assay |
The Journal of neuroscience |
Medium |
23658157
|
| 2015 |
CEND1 is a key mediator of NEUROG2-driven neuronal reprogramming of mouse cortical astrocytes; knockdown of endogenous CEND1 impairs NEUROG2-driven neuronal conversion, and a reciprocal feedback loop exists between CEND1 and NEUROG2 at mRNA and protein levels. |
Lentiviral overexpression, siRNA knockdown, live-cell imaging, mRNA and protein expression analysis, immunocytochemistry |
Stem cell reports |
Medium |
26321141
|
| 2019 |
Expression of mammalian BM88/CEND1 in Drosophila reduces neuroblast and ganglion mother cell markers, impairs MP2 precursor formation, causes disorganized cell-cycle marker expression, disrupts eye disc development, and reduces activated MAP kinase (MAPK) levels, indicating functional interference with the MAPK signaling pathway. |
Transgenic Drosophila expression, immunohistochemistry for neuroblast/GMC markers, cell-cycle markers, anti-pMAP kinase Western blot |
Neuroscience bulletin |
Medium |
31079319
|
| 2005 |
The BM88/CEND1 promoter contains four functional Sp1-binding sites that are required for activity; simultaneous mutation of all four Sp1 sites abolishes promoter activity. Neurogenin-1 also transactivates the BM88 promoter. An 88 bp minimal promoter fragment is sufficient for neuron-specific (but not glial) transcriptional activity. |
Promoter deletion analysis, site-directed mutagenesis of Sp1 sites, transactivation/reporter assays in primary neurons and glia |
Journal of neurochemistry |
Medium |
16181419
|
| 2021 |
Arhgef2 deficiency reduces Mettl14 expression and total m6A levels, decreasing m6A methylation of Cend1 mRNA; reduced m6A on Cend1 mRNA inhibits its nuclear export and translation, resulting in decreased CEND1 protein and impaired neuronal differentiation; overexpression of Cend1 rescues the neurogenesis defects of Arhgef2 KO mice. |
m6A sequencing, Arhgef2 knockout mice, mRNA nuclear export assays, Western blot, overexpression rescue |
iScience |
Medium |
34142067
|
| 2022 |
CEND1 localizes to presynaptic mitochondria in neurons. CEND1 depletion increases mitochondrial fission via upregulation of Drp1, causing abnormal mitochondrial function and cognitive impairment. CDK5/p25 interacts with and phosphorylates CEND1, promoting its degradation. Overexpression of CEND1 in the hippocampus of 5xFAD mice rescues cognitive deficits. |
Proteomic analysis, subcellular fractionation/localization, Cend1 knockout/overexpression in mice, mitochondrial morphology assays, co-immunoprecipitation of CDK5/p25 with CEND1, phosphorylation assay, behavioral tests |
Cell death and differentiation |
High |
35732922
|
| 2023 |
LSD1 (a histone demethylase) epigenetically represses Cend1 transcription by maintaining low levels of H3K4me2 at the Cend1 promoter; loss of LSD1 in cardiomyocytes elevates H3K4me2 at the Cend1 promoter and increases Cend1 transcription, causing cell cycle arrest and heart growth defects; Cend1 knockdown rescues the proliferation defect caused by LSD1 inhibition, and genetic deletion of Cend1 rescues embryonic lethality of Lsd1 null mice. |
Cardiomyocyte-specific Lsd1 KO mice, RNA-seq, ChIP for H3K4me2, siRNA knockdown, Cend1/Lsd1 double KO mice, iPSC-derived cardiomyocytes |
iScience |
High |
38226173
|
| 2025 |
CEND1 forms homodimers via conserved GXXXA motifs in its transmembrane domain, and this dimerization is required to enhance ATP synthesis; disruption of dimerization (G130P mutation) destabilizes CEND1 and abolishes its ATP-enhancing effects. CEND1 physically interacts with Atp5f1b (mitochondrial ATP synthase subunit beta). The small molecule Tianeptine stabilizes CEND1 dimers and elevates ATP levels in a CEND1-dependent manner. |
CEND1 KO mice, co-immunoprecipitation/interaction assay for Atp5f1b, mutagenesis (G130P), ATP synthesis assays, mitochondrial membrane potential and mPTP assays, Tianeptine treatment with KO validation |
Communications biology |
High |
41469760
|
| 2025 |
LSD1-dependent suppression of CEND1 is required for neonatal and adult heart regeneration; cardiomyocyte-specific Cend1 overexpression inhibits heart regeneration, while Cend1 nullizygous mice show enhanced cardiomyocyte proliferation, neovascularization, and macrophage activation; the cardiac regeneration defect from Lsd1 loss is rescued by Cend1 deletion. |
Cardiomyocyte-specific Lsd1 KO/OE mice, Cend1 null mice, cardiomyocyte-specific Cend1 OE mice, apical resection and LAD ligation injury models, RNA-seq, echocardiography, immunostaining |
Theranostics |
High |
40521201
|
| 2025 |
CEND1 overexpression in glioma cells activates AMPK signaling, inhibits PDH activity and mitochondrial oxidative phosphorylation (reducing ATP levels), and induces cell cycle arrest and neuron-like morphology; CEND1 overexpression suppresses tumor growth in intracranial orthotopic mouse models. |
CEND1 overexpression in glioma cells, metabolomics, PDH activity assay, AMPK pathway Western blot, orthotopic tumor model |
Cell & bioscience |
Medium |
41239369
|