| 1997 |
NAC-1 mRNA encodes a protein containing a POZ/BTB domain in its first 120 amino acids; this domain mediates protein-protein interactions among transcriptional regulators. NAC-1 mRNA is selectively increased in the nucleus accumbens after chronic cocaine self-administration. |
cDNA cloning, sequence analysis, in situ hybridization |
The Journal of neuroscience |
Medium |
9278521
|
| 2000 |
NAC-1 acts as a transcriptional repressor localized to neuronal nuclei. Transfection of NAC-1 in cell culture repressed transcription of a reporter gene. NAC-1 interacted with other POZ/BTB proteins in mammalian two-hybrid assays via its POZ/BTB domain. Adenoviral overexpression of NAC-1 in the rat nucleus accumbens prevented the development (but not the expression) of cocaine-induced behavioral sensitization. |
Reporter gene assay (transcriptional repression), mammalian two-hybrid, nuclear localization by immunofluorescence, adenoviral overexpression in vivo |
The Journal of neuroscience |
Medium |
10934270
|
| 1999 |
Antisense knockdown of NAC-1 in the nucleus accumbens enhanced the motor stimulant response to acute cocaine without increasing dopamine release, but increased behavioral response to intra-accumbens dopamine injection; suggesting NAC-1 induction by cocaine is a compensatory mechanism regulating postsynaptic dopamine transmission. |
Antisense oligonucleotide microinjection into nucleus accumbens, in vivo microdialysis, behavioral assay |
Synapse |
Medium |
10400893
|
| 2006 |
NAC-1 homooligomerizes through its BTB/POZ domain, forming discrete nuclear bodies. Expression of a dominant-negative BTB/POZ-domain-only mutant disrupts these NAC-1 nuclear bodies, prevents tumor formation, and promotes tumor cell apoptosis. Full-length NAC-1 overexpression enhances tumorigenicity, demonstrating that BTB/POZ-mediated homodimerization is essential for oncogenic function. |
Co-immunoprecipitation, double immunofluorescence, dominant-negative mutant expression, mouse xenograft model |
Proceedings of the National Academy of Sciences of the United States of America |
High |
17130457
|
| 2007 |
NAC-1 acts as a transcriptional repressor of Gadd45GIP1 (growth arrest and DNA-damage-inducible 45-gamma interacting protein). NAC-1 knockdown in SKOV3 and HeLa cells induced Gadd45GIP1 expression transcriptionally; engineered NAC-1 expression in NAC-1-negative cells suppressed endogenous Gadd45GIP1. Induction of dominant-negative NAC-1 conferred a growth-inhibitory effect partially reversible by Gadd45GIP1 knockdown. Gadd45GIP1 overexpression caused growth arrest in vitro and in vivo. |
SAGE, siRNA knockdown, engineered overexpression, dominant-negative induction, in vitro and in vivo growth assays |
Cancer research |
High |
17804717
|
| 2009 |
NAC-1 homodimerization (via BTB/POZ domain) contributes to paclitaxel resistance through negative regulation of the Gadd45 pathway. NAC-1 knockdown or disruption of homodimerization by dominant-negative BTB/POZ induced Gadd45gamma expression, which interacted with Gadd45gip1. Ectopic NAC-1 or Gadd45gip1 knockdown conferred paclitaxel resistance; NAC-1 knockdown or Gadd45gip1 overexpression increased paclitaxel sensitivity. |
siRNA knockdown, ectopic expression, dominant-negative BTB/POZ construct, shRNA, ex vivo drug resistance assays |
Oncogene |
High |
19305429
|
| 2017 |
A recurrent de novo heterozygous NACC1 variant c.892C>T (p.Arg298Trp) causes a neurodevelopmental syndrome (microcephaly, epilepsy, cataracts, profound developmental delay). The same variant was identified in 7 independent patients by whole-exome sequencing, establishing NACC1 as a germline disease gene with selective constraint against missense variants. |
Whole-exome sequencing in 17,228 individuals, statistical analysis of variant recurrence |
American journal of human genetics |
Medium |
28132692
|
| 2023 |
The disease-associated Nacc1-R284W (murine homolog of human R298W) mutation impairs glutamatergic neurotransmission in a cell-autonomous dominant-negative manner in autaptic neurons. Novel Nacc1 interaction partners identified in the brain include SynGAP1, GluK2A, and several SUMO E3 ligases. The R284W mutant shows reduced binding to SynGAP1 and GluK2A, and greatly increased SUMOylation. Ablating SUMOylation of R284W partially restored SynGAP1 binding but not GluK2A binding. |
Autaptic neuron electrophysiology, co-immunoprecipitation/pulldown (interaction partners), SUMOylation biochemical assays, mutagenesis |
Frontiers in molecular neuroscience |
High |
37533751
|
| 2024 |
The Nacc1 R284W knock-in mouse model of the human R298W mutation exhibits epileptiform discharges, behavioral seizures, hindlimb clasping, and altered EEG power spectral distribution. RNA-seq of P14 mutant cortex revealed >1,000 differentially expressed genes: synaptic genes (postsynapse, ion channels) were upregulated and glial/metabolic/mitochondrial genes were downregulated. Synaptic protein levels were altered. NACC1 nuclear immunoreactivity increased in cortical pyramidal neurons and parvalbumin interneurons but not in astrocytes or oligodendroglia. Homozygosity worsened phenotypes. |
Knock-in mouse model, EEG, RNA-seq, immunohistochemistry, western blot, behavioral assays |
The Journal of neuroscience |
High |
38388424
|
| 2019 |
CRM197 (HB-EGF inhibitor) reverses paclitaxel resistance in ovarian cancer cells at least in part by downregulating NAC-1 and its downstream Gadd45gip1/Gadd45 pathway, activating the proapoptotic JNK/p38MAPK pathway and enhancing caspase-3 activity. This places NACC-1 downstream of HB-EGF signaling in the paclitaxel resistance pathway. |
In vitro drug treatment, western blot, apoptosis assay, in vivo xenograft |
Cancer medicine |
Medium |
31490008
|
| 2025 |
NACC1 acts as a key transcriptional regulator of RIPK3 in macrophages through an NF-κB-linked pathway. In PNPLA3-148M macrophages under lipotoxic stress, NF-κB upregulates NACC1, which in turn drives RIPK3 expression and phosphorylation, promoting necroptosis and pro-inflammatory cytokine secretion. Genetic or pharmacological inhibition of NACC1 reduced RIPK3, suppressed necroptosis, and lowered inflammatory cytokines. |
iPSC-derived multicellular liver culture, single-cell RNA-seq, genetic knockdown, pharmacological inhibition (NIC3), integrative transcriptomic analysis |
Hepatology communications |
Medium |
41564367
|
| 2025 |
NACC1 directly binds gene-regulatory regions and promotes chromatin accessibility to induce expression of totipotency genes, zygotic genome activation genes, and totipotency-associated retrotransposons in mouse embryonic stem cells. These NACC1-regulated retrotransposons further modulate expression of proximal totipotency genes, forming a coherent feed-forward regulatory mechanism. NACC1 is also required for embryogenesis progression beyond the totipotency stage. |
Single-cell proteomics, single-cell transcriptomics, chromatin accessibility assays (ATAC-seq or equivalent), genomics (ChIP-seq or CUT&RUN), loss-of-function in embryos |
bioRxiv (preprint)preprint |
Medium |
bio_10.1101_2025.10.14.682353
|
| 2025 |
NACC1 regulates ADAM9 expression, and the NACC1/ADAM9/PI3K/AKT axis sustains AML cell survival. NACC1 knockdown inhibited PI3K/AKT signaling, promoted apoptosis, suppressed proliferation, and caused G0/G1 arrest. ADAM9 was downregulated upon NACC1 knockdown, and AKT activator SC79 restored proliferation inhibited by either NACC1 or ADAM9 knockdown. |
Lentiviral knockdown, flow cytometry, proliferation assays, western blot, AKT activator rescue |
International journal of medical sciences |
Medium |
39898241
|
| 2025 |
circNRIP1 interacts with the KH1/2 domain of IGF2BP1 (an m6A reader), blocking its activity and thereby reducing NACC1 mRNA stability, leading to suppression of colorectal tumorigenesis. This places NACC1 mRNA as a downstream target whose stability is regulated by IGF2BP1-mediated m6A reading. |
RNA pull-down, proteomic analysis, RNA immunoprecipitation-PCR, in vitro and in vivo proliferation/tumorigenesis assays |
Gastroenterology report |
Medium |
40584151
|
| 2025 |
ESC-derived cortical neurons homozygous or heterozygous for the NACC1 R298W mutation express higher NACC1 protein levels and show altered expression of transcripts involved in pre- and postsynaptic signaling, neurotransmission, extracellular matrix, and adhesion. Increased protein levels of presynaptic SNAP25 and VAMP2 and postsynaptic SYNGAP1 were observed. Mutant neural stem cells showed increased adhesion to collagen 1 and 4. Transcriptional profiling indicated a shift in dorsal-ventral patterning toward a ventral signature. |
Genome-edited human isogenic ESCs, cortical neuron differentiation, RNA-seq, western blot, adhesion functional assay, qPCR |
Human molecular genetics |
Medium |
40910719
|