| 2015 |
USP53 contains a catalytically inactive ubiquitin-specific protease domain (annotated as pseudo-enzyme) and colocalizes and physically interacts with tight junction scaffolding proteins TJP1 and TJP2 in polarized epithelial cells, placing USP53 as a component of the tight junction complex essential for auditory hair cell survival. |
Co-immunoprecipitation, colocalization imaging, forward genetics (ENU mutagenesis mambo mouse line), cochlear organotypic cultures, biotin tracer assay, electrophysiology (endocochlear potential measurement) |
The Journal of neuroscience |
High |
26609154
|
| 2018 |
USP53 was identified as an interactor of TJP2, and homozygous truncating variants in USP53 cause low-GGT intrahepatic cholestasis and hearing loss, linking USP53 function to tight junction integrity in the liver and inner ear. |
Exome sequencing, positional mapping, human genetics (segregation analysis) |
Genetics in medicine |
Medium |
30250217
|
| 2020 |
USP53 deubiquitinates FKBP51, stabilizing it; FKBP51 in turn dephosphorylates AKT1, thereby suppressing AKT1 pathway activity, inhibiting glycolysis, and promoting apoptosis in lung adenocarcinoma cells. |
Co-immunoprecipitation, ubiquitination assay, stable overexpression/shRNA knockdown, AKT pathway inhibitor (LY294002), in vivo xenograft |
Molecular carcinogenesis |
Medium |
32511815
|
| 2020 |
Ultrastructural study of liver biopsies from patients with USP53 mutations revealed elongated hepatocyte-hepatocyte tight junctions, implicating USP53 in tight junction structure/length regulation in hepatocytes. |
Transmission electron microscopy of liver biopsies from patients with biallelic USP53 variants |
Liver international |
Medium |
32124521
|
| 2021 |
USP53 is identified as a target gene of PTH-activated NACA in osteoblasts; NACA binds the USP53 promoter (confirmed by EMSA), and USP53 promoter activity is regulated by the JUN-CREB complex via activated PKA and NACA. Usp53 knockdown in stromal cells promotes osteoblast markers and inhibits adipogenic markers, establishing a role in mesenchymal lineage commitment. |
ChIP-seq, RNA-seq, EMSA, luciferase reporter assay, shRNA knockdown in ST2 stromal cells, in vivo implantation of knockdown cells in immunocompromised mice |
Scientific reports |
High |
33875709
|
| 2022 |
USP53 interacts with cytochrome c (CYCS) and deubiquitinates it, increasing CYCS stability; overexpression of CYCS rescues the decreased apoptosis caused by USP53 knockdown in hepatocellular carcinoma cells, establishing a USP53-CYCS apoptotic axis. |
Co-immunoprecipitation, mass spectrometry, cycloheximide chase assay, GSEA, rescue experiment with CYCS overexpression |
Oncogenesis |
Medium |
35654790
|
| 2023 |
USP53 regulates RANKL expression by enhancing the interaction between VDR and SMAD3 in osteoblasts and bone marrow adipocytes; Usp53 null mice display low bone mass, increased osteoclastogenesis, and elevated serum RANKL, establishing USP53 as a regulator of osteoblast-osteoclast coupling. |
Usp53 knockout mice, micro-CT (trabecular and cortical bone quantification), histomorphometry, serum RANKL ELISA, mechanistic interaction assay (VDR-SMAD3 co-immunoprecipitation) |
Journal of bone and mineral research |
High |
36726200
|
| 2023 |
USP53 directly binds and deubiquitinates CRKL to stabilize it, thereby promoting TNBC cell proliferation, migration, invasion, EMT, and chemoresistance. |
Co-immunoprecipitation, ubiquitination assay, gain/loss-of-function cell experiments |
Cancers |
Low |
37894400
|
| 2023 |
USP53 localizes to hippocampal CA1-3 regions and granular dentate, and co-immunoprecipitates with GRIA2/GluA2 (AMPA receptor subunit) and GRIP2, placing USP53 within the AMPA receptor interactome in the brain. |
Immunofluorescence (co-localization with GRIA2/GluA2 and GRIP2 antibodies), co-immunoprecipitation |
Genes |
Low |
37895270
|
| 2024 |
USP53 binds SR-A via its USP domain (requiring Cys41) and removes K48-linked ubiquitin chains from SR-A, preventing its proteasomal degradation and thereby promoting foam cell formation in smooth muscle cells during atherosclerosis. DKK1 regulates USP53 transcription by facilitating CREB binding to the USP53 promoter. |
Co-immunoprecipitation, RNA-seq, site-directed mutagenesis (Cys41), ChIP, adeno-associated virus SMC-specific overexpression in DKK1ECKO/APOE-/- mice, parallel-plate co-culture flow system, endothelium-specific KO and OE mouse models |
International journal of biological sciences |
High |
38904030
|
| 2024 |
USP53 interacts with ZMYND11 and catalyzes its deubiquitination and stabilization; the 33–50 amino acid Cys-box domain is required for USP53 enzymatic activity but not for ZMYND11 binding; USP53-mediated stabilization of ZMYND11 mediates USP53's anti-tumor effects in breast cancer. |
Co-immunoprecipitation, domain deletion/mutagenesis (Cys-box), ubiquitination assay, rescue experiments with ZMYND11 overexpression, xenograft |
Biological procedures online |
Medium |
39044157
|
| 2024 |
USP53 interacts with TJP2 in hepatocytes (confirmed by co-immunoprecipitation and co-immunofluorescence); loss of hepatic USP53 causes upregulation of Tjp2 mRNA, lengthening of hepatocellular tight junctions, and downregulation of bile acid transporters (Abcb11, Ntcp, Abcc2), protecting mice from DDC-induced liver injury. |
Usp53 liver-specific knockout mice (Alb-cre × Usp53fl/fl), co-immunoprecipitation, immunofluorescence, electron microscopy (tight junction length), qRT-PCR, dietary challenge (DDC) |
Biochimica et biophysica acta. Molecular basis of disease |
High |
39705897
|
| 2024 |
USP53 and USP54, previously annotated as catalytically inactive pseudo-DUBs, are in fact active deubiquitinases with high selectivity for K63-linked polyubiquitin chains. USP53 can deubiquitinate a substrate in a K63-linkage-dependent manner. Patient-associated mutations in the USP domain of USP53 abrogate this catalytic activity. Depletion of USP53 increases K63-linked ubiquitination of tricellular junction components. Structural analyses identified K63-specific S2-ubiquitin-binding sites within the catalytic domain. |
Biochemical in vitro DUB activity assays, structural analysis, site-directed mutagenesis of patient variants, K63-linkage-specific ubiquitin chain assays, mass spectrometry, depletion of USP53 followed by K63-ubiquitination profiling of tricellular junction components |
bioRxivpreprint |
High |
bio_10.1101_2024.07.07.602376
|
| 2025 |
Loss of USP53 causes mislocalization of the bile salt export pump (BSEP) to MYO5B-positive and RAB11A-positive recycling endosomes, impairing BSEP trafficking to the plasma membrane. USP53 colocalizes with MYO5B and interacts with its IQ domain; the cholestasis-associated MYO5B p.(Arg824Cys) variant (located in the IQ domain) fails to interact with USP53. Loss of USP53 increases ubiquitination of MYO5B and disrupts its endosomal recruitment. |
Immunohistochemistry of patient tissue, confocal immunofluorescence, surface protein biotinylation, siRNA knockdown, CRISPR-Cas9 knockout, site-directed mutagenesis, co-immunoprecipitation, live cell imaging, FRAP |
Hepatology |
High |
40828662
|
| 2025 |
USP53 interacts with the intermediate domain of RIPK1 and removes K63-linked ubiquitin chains at RIPK1 lysine-377, facilitating RIPK1 autophosphorylation and triggering downstream apoptotic and necroptotic pathways in cardiomyocytes during ethanol-induced injury. USP53 transcription is induced by EGR1 in response to ethanol. |
Co-immunoprecipitation combined with LC-MS/MS, site-specific ubiquitination mapping, cardiomyocyte-specific USP53 knockout (USP53CKO) mice, in vivo alcohol feeding model, western blot, ChIP |
Research (Washington, D.C.) |
High |
40822127
|
| 2025 |
USP53 interacts with and deubiquitinates NOTCH2 in microglia; USP53 knockout reduces Aβ-induced NOTCH2 deubiquitination, suppresses IKKβ/NFκB signaling, reduces neuroinflammatory mediators (IL-1β, TNF-α), and improves learning/memory in 5XFAD Alzheimer's disease mice. |
Co-immunoprecipitation, USP53 knockout in 5XFAD mice, Morris Water Maze, western blot, immunofluorescence, qRT-PCR |
Neurochemistry international |
Medium |
41482165
|
| 2025 |
USP53 deubiquitinates MORF4L1 at K249 and K227, preventing its ubiquitination and proteasomal degradation, thereby suppressing colorectal cancer cell proliferation; MORF4L1 overexpression rescues the pro-tumorigenic effects of USP53 silencing. |
Immunoprecipitation–LC/MS (ubiquitylome), Co-IP, ubiquitination assay with site identification (K249, K227), gain/loss-of-function experiments, xenograft |
Biochimica et biophysica acta. Molecular basis of disease |
Medium |
41061828
|
| 2025 |
USP53 deubiquitinates SMAD5 to stabilize its protein expression in bone marrow stromal cells, promoting their viability, invasion, and osteogenic differentiation; EIF4A3 stabilizes USP53 mRNA to maintain USP53 protein levels, forming an EIF4A3-USP53-SMAD5 regulatory axis. |
Co-immunoprecipitation, western blot, knockdown/overexpression experiments, ALP activity assay, Alizarin red staining, qRT-PCR |
Scientific reports |
Low |
40481141
|
| 2025 |
FOS transcription factor directly regulates USP53 expression; juglone suppresses FOS, downregulating USP53, which reduces USP53-dependent deubiquitination of MLKL and GSDMD, promoting their ubiquitination and degradation and thereby alleviating necroptosis and pyroptosis in injured neurons. |
RNA-seq, immunoprecipitation, western blot, qRT-PCR, ChIP-qPCR, OGD/R neuronal model, in vivo spinal cord injury model |
Phytomedicine |
Medium |
41045624
|
| 2025 |
ATF3 transcriptionally represses USP53 by binding its promoter; USP53 promotes adipogenesis and activates the RhoA/ROCK signaling pathway; ATF3-mediated USP53 repression inhibits adipocyte differentiation of 3T3-L1 cells. |
ChIP assay, luciferase reporter assay, Oil Red O staining, triglyceride measurement, western blot (RhoA/ROCK pathway), ATF3 and USP53 overexpression/knockdown |
Journal of molecular endocrinology |
Medium |
39641389
|