| 2005 |
BEX2 physically interacts with LMO2 (a LIM-domain transcription factor), confirmed by GST pull-down and co-immunoprecipitation. BEX2 and LMO2 form part of a DNA-binding protein complex (shown by EMSA) that also includes NSCL2 and LDB1, and BEX2 enhances the transcriptional activity of LMO2 and augments LMO2-induced NSCL2-dependent transcriptional activity in vivo. |
GST pull-down, co-immunoprecipitation, EMSA, luciferase reporter assay, mammalian two-hybrid |
Nucleic acids research |
High |
16314316
|
| 2006 |
BEX2 promoter is hypermethylated and transcriptionally silenced in malignant glioma. Viral re-expression of BEX2 increases sensitivity to chemotherapy-induced apoptosis and exerts tumor suppressor effects in vitro and in a xenograft mouse model. |
5-AzaC/TSA pharmacologic reversal, microarray, promoter methylation analysis, viral transduction, xenograft model |
Cancer research |
Medium |
16818640
|
| 2007 |
BEX2 expression is necessary and sufficient for NGF-mediated inhibition of ceramide-induced apoptosis through NF-κB activation in breast cancer cells. BEX2 also modulates apoptosis in response to estradiol and tamoxifen, defining a NGF/BEX2/NF-κB pathway. |
siRNA knockdown, BEX2 overexpression, NF-κB reporter assay, apoptosis assay |
Cancer research |
Medium |
17638883
|
| 2009 |
BEX2 expression (hypomethylated) is characteristic of MLL-translocation AML cell lines; demethylating agents and HDAC inhibitors restore BEX2 expression in MLLwt cells. Bex2 mRNA in MLL-ENL transgenic mouse cell lines requires expression of the MLL fusion gene, placing BEX2 downstream of MLL fusion proteins. |
MS-MLPA methylation analysis, demethylating agent treatment, transgenic mouse cell lines |
Molecular cancer |
Medium |
19835597
|
| 2010 |
BEX2 downregulation induces mitochondrial apoptosis and sensitizes breast cancer cells to ceramide, doxorubicin, and staurosporine. BEX2 overexpression protects against mitochondrial apoptosis. This effect is mediated through positive regulation of Bcl-2 and negative regulation of BAD, BAK1, and PUMA. BEX2 expression is also required for normal G1 cell cycle progression through regulation of cyclin D1 and p21. BEX2 downregulation increases protein phosphatase 2A (PP2A) expression and activity. |
siRNA knockdown, BEX2 overexpression, apoptosis assay, Western blot for Bcl-2 family members, cell cycle analysis, PP2A activity assay |
International journal of cancer |
Medium |
19711341
|
| 2010 |
c-Jun and p65/RelA directly bind and transcriptionally activate the BEX2 promoter in breast cancer cells. In turn, BEX2 is required for normal phosphorylation of p65 and IκBα (NF-κB activation), for phosphorylation of c-Jun, and for JNK kinase activity, establishing a feedback loop. BEX2 is also required for c-Jun-mediated cyclin D1 induction and cell proliferation. BEX2 downregulation increases PP2A activity in c-Jun stable lines. |
Luciferase reporter assay, chromatin immunoprecipitation (ChIP), Western blot, c-Jun stable lines, PP2A activity assay |
Molecular cancer |
Medium |
20482821
|
| 2011 |
ErbB2 overexpression induces c-Jun and BEX2 expression; ErbB2-mediated BEX2 induction is abrogated by a dominant-negative c-Jun mutant. BEX2 overexpression in turn increases c-Jun-mediated ErbB2 induction and c-Jun binding to the ErbB2 promoter, establishing a positive feedback loop among ErbB2, c-Jun, and BEX2 in breast cancer cells. |
ErbB2 overexpression, dominant-negative c-Jun mutant, Western blot, ChIP, promoter assay |
International journal of cancer |
Medium |
21384344
|
| 2012 |
BEX2 downregulation inhibits glioma cell migration and invasion, associated with increased N-cadherin and decreased secretion of MMP-2; BEX2 overexpression promotes migration and invasion, placing BEX2 upstream of N-cadherin and MMP-2 in glioma. |
siRNA knockdown, overexpression, migration/invasion assays, Western blot, zymography |
Journal of molecular neuroscience |
Low |
22907646
|
| 2012 |
BEX2 downregulation promotes apoptosis and activates the JNK pathway in malignant glioma cells; the JNK-specific inhibitor SP600125 abolishes the pro-apoptotic effect of BEX2 knockdown, placing BEX2 upstream of JNK in glioma cell survival. |
siRNA knockdown, BEX2 overexpression, JNK inhibitor (SP600125), apoptosis assay |
Biochemical and biophysical research communications |
Medium |
23022184
|
| 2012 |
BEX2 interacts with INI1/hSNF5 (a SWI/SNF chromatin remodeling complex component), confirmed by yeast two-hybrid and GST pull-down; truncated mutation analysis identified that two conserved reverse repeat sequences in INI1/hSNF5 are required for this interaction. Both proteins co-localize in the nucleus, and co-overexpression increases S-phase population, indicating BEX2 regulates cell cycle via INI1/hSNF5. |
Yeast two-hybrid, GST pull-down, truncated mutation analysis, subcellular localization, cell cycle analysis |
Yi chuan = Hereditas |
Medium |
22698742
|
| 2014 |
BEX2 promotes proliferation of glioblastoma cells through NF-κB signaling: BEX2 downregulation decreases NF-κB p65 expression; BEX2 overexpression-induced proliferation is abolished by p65 downregulation. Critically, BEX2 with a nuclear localization signal deletion no longer promotes p65 expression, demonstrating that BEX2 nuclear localization is required for this function. |
siRNA knockdown, overexpression, nuclear localization signal deletion mutant, proliferation assay, Western blot |
Journal of molecular neuroscience |
Medium |
24390962
|
| 2014 |
BEX2 downregulation inhibits glioma cell migration and invasion by reducing β-catenin protein levels (nuclear and cytoplasmic, not membrane-associated); β-catenin overexpression rescues the migration/invasion defect caused by BEX2 knockdown, placing BEX2 upstream of β-catenin in glioma cell invasiveness. |
siRNA knockdown, β-catenin overexpression rescue, Western blot, migration/invasion assay |
Biochemical and biophysical research communications |
Low |
25490384
|
| 2017 |
BEX2 promotes colorectal cancer cell proliferation via the JNK/c-Jun pathway: BEX2 knockdown inhibits JNK/c-Jun phosphorylation; BEX2 overexpression activates JNK/c-Jun phosphorylation; the JNK inhibitor SP600125 abolishes BEX2 overexpression-induced proliferation, establishing BEX2 as an upstream regulator of JNK/c-Jun signaling in colorectal cancer. |
siRNA knockdown, BEX2 overexpression, JNK inhibitor (SP600125) pharmacologic epistasis, phosphorylation Western blot, proliferation assay, xenograft model |
International journal of biological sciences |
Medium |
28367093
|
| 2017 |
BEX2 is required for isoflavone-induced autophagy in SH-SY5Y neuronal cells: BEX2 siRNA abolishes isoflavone-mediated LC3-II accumulation, p62 decrease, and neuroprotection against atrazine toxicity, placing BEX2 as a necessary mediator of autophagy induction in these cells. |
siRNA knockdown, Western blot (LC3-II, p62), autophagy inhibitor (3-MA), cell viability assay |
Cellular physiology and biochemistry |
Low |
29049987
|
| 2020 |
BEX2 knockdown in cholangiocarcinoma decreases tumorigenicity and G0 phase fraction. Starvation induces USF2 transcription factor, which transcriptionally induces BEX2. BEX2 binding partners identified include E3 ubiquitin ligase complex proteins FEM1B and CUL2 and mitochondrial protein TUFM; knockdown of BEX2 or TUFM increases mitochondrial oxygen consumption rate and decreases tumorigenicity, indicating BEX2 suppresses mitochondrial activity through TUFM interaction. |
Comprehensive protein binding screen, co-immunoprecipitation, siRNA knockdown, oxygen consumption assay, xenograft model, cell cycle analysis |
Scientific reports |
Medium |
33299012
|
| 2020 |
BEX2 knockout in colorectal cancer cells activates the Hedgehog signaling pathway and promotes migration/metastasis; Hedgehog inhibitors (GANT61 and GDC-0449) rescue the migratory enhancement of BEX2-knockout cells. BEX2 negatively modulates Hedgehog signaling by retaining Zic2 in the cytoplasm; BEX2 loss causes nuclear translocation of Zic2, activating Hedgehog signaling, and Zic2 knockdown abrogates the migratory phenotype of BEX2-knockout cells. |
CRISPR/Cas9 knockout, RNA-Seq, Hedgehog inhibitor rescue, Zic2 knockdown epistasis, subcellular fractionation/localization, migration assay, in vivo metastasis model |
International journal of biological sciences |
Medium |
31929751
|
| 2020 |
BEX2 escapes X-chromosome inactivation, demonstrated by biallelic BEX2 expression in iPSCs derived from a female patient with Xq22 deletion, in the iPSC line where the wild-type allele was inactivated. |
iPSC derivation from patient, allele-specific expression analysis |
Congenital anomalies |
Medium |
33244819
|
| 2021 |
BEX2 activates mitophagy via the BNIP3/NIX pathway in SH-SY5Y neurons: BEX2 knockdown inhibits soybean isoflavone-induced BNIP3/NIX upregulation, LC3-II accumulation, and mitophagy, and prevents protection against atrazine-induced mitochondrial damage, placing BEX2 upstream of BNIP3/NIX-mediated mitophagy. |
siRNA knockdown, Western blot (BNIP3/NIX, LC3-II, BEX2), mitophagy inhibitor (Mdivi-1), mitochondrial membrane potential assay, electron microscopy |
Ecotoxicology and environmental safety |
Low |
34673406
|
| 2023 |
BEX2 is crotonylated at lysine 59 (K59), and this crotonylation is critical for BEX2-mediated mitophagy in lung cancer cells. Crotonylated BEX2 facilitates interaction between NDP52 and LC3B to promote mitophagy; the K59R mutation of BEX2 impairs the NDP52-LC3B interaction and inhibits mitophagy, thereby reducing resistance to chemotherapy-induced apoptosis. |
Site-directed mutagenesis (K59R), co-immunoprecipitation, Western blot, mitophagy assay, apoptosis assay, in vivo xenograft model |
Cell death & disease |
Medium |
37777549
|
| 2025 |
BEX2 interacts with PIK3CA (the catalytic subunit of PI3K) and impairs the PIK3CA–p85 (regulatory subunit) interaction, thereby inhibiting PI3K activity and promoting autophagic flux through the PI3K/AKT/mTOR signaling pathway in non-small-cell lung cancer cells. |
Co-immunoprecipitation, Western blot, confocal microscopy, rapamycin treatment |
Cell communication and signaling |
Medium |
41398291
|
| 2026 |
BEX2 interacts with MCL1, promotes its ubiquitination and degradation, thereby reducing MCL1 stability. Low BEX2 expression stabilizes MCL1, which enhances cancer stem cell stemness potential and Hedgehog pathway activity in colorectal cancer cells. |
Co-immunoprecipitation, ubiquitination assay, Western blot, functional stem cell assays (sphere formation, ELDA), xenograft model |
Cancer biology & medicine |
Medium |
41814669
|