| 2006 |
CIAPIN1 overexpression in gastric cancer cells upregulates MDR-1 (P-glycoprotein) and MRP-1 expression, reduces intracellular adriamycin accumulation, and protects cells from ADR-induced apoptosis; knockdown sensitizes cells to anticancer drugs. CIAPIN1 also decreased expression of Bcl-2, Bax, and p53. |
cDNA transfection and RNA interference (stable transfectants), in vitro drug sensitivity assay, Western blotting, flow cytometry |
Cancer biology & therapy |
Medium |
16410721
|
| 2006 |
CIAPIN1 protein localizes to both the cytoplasm and nucleus, with accumulation in the nucleolus, in human and mouse cells. Bioinformatic prediction identified a putative nuclear localization signal and nuclear export signal, suggesting cytoplasm-nucleus-nucleolus translocation. |
Immunohistochemistry, immunofluorescence, His-tagged CIAPIN1 expression, subcellular fractionation + Western blotting |
The journal of histochemistry and cytochemistry |
Medium |
16957168
|
| 2007 |
CIAPIN1 upregulates MDR-1 and Bcl-2 transcription and downregulates Bax in leukemia cells, conferring multidrug resistance; this was independent of glutathione-S-transferase activity and intracellular glutathione content. |
Eukaryotic expression vector transfection, RNAi, semiquantitative RT-PCR, Western blot, luciferase reporter assay, flow cytometry |
Biochemistry and cell biology |
Medium |
18059532
|
| 2007 |
CIAPIN1 induces G1/S cell cycle arrest in gastric cancer cells, with downregulation of CyclinD1 and upregulation of p27Kip1 as contributing molecular mechanisms; ectopic CIAPIN1 suppresses proliferation while knockdown accelerates it. |
Adenovirus-mediated cDNA expression and siRNA knockdown, cell cycle analysis by flow cytometry, Western blotting, soft agar colony assay, in vivo xenograft |
Cancer biology & therapy |
Medium |
18293492
|
| 2007 |
Recombinant human CIAPIN1 expressed in baculovirus-insect cell system does NOT exhibit DNA methyltransferase, RNA methyltransferase, or DNA demethylase activity, and does not bind S-adenosyl-methionine in vitro, despite bioinformatic prediction of a methyltransferase motif. |
Baculovirus expression and Ni-NTA purification, in vitro DNA/RNA methyltransferase assay, demethylation assay, 3H-AdoMet binding test |
International journal of biological macromolecules |
Medium |
17935775
|
| 2008 |
CIAPIN1 knockdown inhibits HCC cell proliferation by blocking S-phase entry and reduces anchorage-independent colony formation; adenovirus-delivered CIAPIN1 siRNA suppresses tumor growth in vivo. |
Adenovirus-mediated RNAi, cell proliferation assay, cell cycle analysis, soft agar colony formation, in vivo xenograft |
Carcinogenesis |
Medium |
18299278
|
| 2008 |
Adenoviral restoration of CIAPIN1 in clear cell renal cell carcinoma cells causes G1 arrest and inhibits growth in vitro and in vivo, accompanied by decreased cyclinD1, cyclinE, CDK2, CDK4, p-Rb, and VEGF, and increased p27Kip1 and Rb. |
Adenoviral CIAPIN1 delivery, cell cycle analysis, Western blotting, in vivo xenograft |
Cancer letters |
Medium |
19081179
|
| 2009 |
CIAPIN1 siRNA in SGC7901 gastric cancer cells suppresses in vitro proliferation, migration, and tube formation of co-cultured endothelial cells (conditioned medium), and inhibits in vivo tumorigenicity and angiogenesis. |
Stable siRNA transfection, HUVEC proliferation/migration/tube formation assay with conditioned medium, in vivo xenograft angiogenesis |
Cancer biology & therapy |
Low |
19502810
|
| 2011 |
CIAPIN1 confers multidrug resistance in colon carcinoma cells by upregulating MDR-1 (P-gp) and Bcl-xL, and this function is independent of the wild-type p53 signaling pathway. |
siRNA knockdown and gene transfection, drug sensitivity assay, Western blotting, p53 inactivation analysis |
Oncology reports |
Medium |
21240465
|
| 2013 |
Drosophila CIAPIN1 (D-CIAPIN1) is required for follicle cell proliferation and survival during ovarian development; mutation of the conserved twin-cysteine CX2C motif abolishes protein function; D-CIAPIN1 complements yeast CIAPIN1-deletion strain nonviability. |
Genetic allele analysis, yeast complementation, mitotic index quantification, cell death assay in Drosophila mutants |
Developmental dynamics |
High |
23444317
|
| 2013 |
CIAPIN1 siRNA inhibits proliferation and migration of vascular smooth muscle cells (VSMCs) and promotes apoptosis, accompanied by downregulation of Bcl-2 and upregulation of Bax. |
Adenovirus-encoded CIAPIN1 siRNA transduction into VSMCs, proliferation/migration/apoptosis assays, Western blotting |
Current neurovascular research |
Low |
23151078
|
| 2014 |
CIAPIN1 depletion in K562 CML cells induces granulocytic differentiation via decreased NHE1 (Na+/H+ exchanger 1) expression and upregulated ERK1/2 phosphorylation; NHE1 inhibition further promotes differentiation, while NHE1 overexpression reverses it; ERK1/2 inhibitor (PD98059) abolishes this differentiation. |
shRNA knockdown, ectopic NHE1 expression, chemical inhibitors (NHE1 inhibitor, PD98059), differentiation markers, Western blotting |
Leukemia research |
Medium |
25043809
|
| 2015 |
CIAPIN1 knockdown in K562 CML cells decreases ERK5 phosphorylation and NF-κB activity; combined inhibition of ERK5 (XMD8-92) and NF-κB (Bay 11-7082) with CIAPIN1 depletion synergistically inhibits proliferation and promotes apoptosis, enhancing imatinib sensitivity. |
shRNA knockdown, chemical inhibitors (XMD8-92, Bay 11-7082), proliferation/apoptosis assays, Western blotting, nude mice transplantation model |
Biochemical pharmacology |
Medium |
26679828
|
| 2015 |
CIAPIN1 overexpression in MDA-MB-231 breast cancer cells inhibits migration, invasion, and MMP expression by decreasing NHE1 expression and ERK1/2 phosphorylation; NHE1 inhibitor (Cariporide) and MEK1 inhibitor (PD98059) synergistically suppress these effects. |
Lentiviral overexpression, migration/invasion assays, MMP expression analysis, Western blotting, chemical inhibitors |
Experimental cell research |
Medium |
25724898
|
| 2018 |
miR-182-5p directly binds the 3'UTR of CIAPIN1 mRNA (confirmed by dual-luciferase reporter assay) and negatively regulates CIAPIN1 expression; CIAPIN1 knockdown abolishes the protective effect of miR-182-5p inhibition on hypoxia-induced cardiomyocyte apoptosis. |
Dual-luciferase reporter assay, RT-qPCR, Western blotting, siRNA knockdown, annexin V/PI apoptosis assay, caspase-3 activity assay |
Biochemistry and cell biology |
Medium |
29671338
|
| 2019 |
Tat-CIAPIN1 fusion protein transduces into HT-22 hippocampal neurons and brain tissue, inhibiting H2O2-induced cell death and ischemic neuronal death by regulating Akt, MAPK (ERK, JNK, p38), NF-κB, and apoptotic (Bcl-2/Bax/caspase) signaling pathways. |
Tat fusion protein transduction, cell viability assay, ROS measurement, DNA fragmentation, Western blotting, ischemia animal model |
Free radical biology & medicine |
Medium |
30818058
|
| 2019 |
Tat-CIAPIN1 transduction into LPS-exposed macrophages reduces ROS, DNA fragmentation, MAPKs and NF-κB activation, and suppresses pro-inflammatory mediators (COX-2, iNOS, IL-6, TNF-α) and Bax/caspase-3; in a TPA-induced mouse skin inflammation model, transduced Tat-CIAPIN1 decreases inflammatory damage. |
Tat fusion protein cell transduction, ROS assay, DNA fragmentation, MAPK/NF-κB Western blotting, cytokine measurement, TPA mouse model |
BMB reports |
Medium |
31722779
|
| 2019 |
miR-16 directly targets the 3'UTR of CIAPIN1 and negatively modulates CIAPIN1 expression; CIAPIN1 overexpression reverses hypoxia/reoxygenation-induced changes in apoptosis-associated proteins and modulates NF-κB/IκBα phosphorylation. |
Dual-luciferase reporter assay, RT-qPCR, Western blotting, miR-16 mimics/inhibitor, CIAPIN1 overexpression, flow cytometry |
Molecular medicine reports |
Medium |
31432171
|
| 2021 |
CIAPIN1 negatively regulates Tp53 transcription, promoting VSMC cell cycle progression and migration via cyclin E1–CDK2/pRb/PCNA and MMP2 pathways; CIAPIN1 also increases JAK2 expression and enhances JAK2/STAT3 phosphorylation upon vascular injury, driving phenotypic switching from contractile to synthetic state. |
Lentiviral gain- and loss-of-function, balloon injury and ligation neointima models in rat/mouse carotid arteries, Western blotting, cell cycle/proliferation/migration assays |
British journal of pharmacology |
Medium |
34289085
|
| 2021 |
Tat-CIAPIN1 protein transduction protects pancreatic RINm5F β-cells from cytokine-induced cytotoxicity by reducing ROS/DNA fragmentation, inhibiting MAPK and NF-κB activation, elevating Bcl-2, and reducing Bax and cleaved Caspase-3. |
Tat fusion protein transduction, cell viability assay, ROS assay, Western blotting (MAPK, NF-κB, Bcl-2/Bax/caspase-3) |
BMB reports |
Low |
34120676
|
| 2022 |
CIAPIN1 silencing in cholangiocarcinoma KKU-100 cells suppresses migration and invasion; bioinformatic analysis of CIAPIN1-interacting proteins identified via LC-MS/MS after siRNA knockdown predicts connection to TGF-β/SMADs pathway via NOS1. |
siRNA knockdown, LC-MS/MS proteomics, transwell migration/invasion assay, bioinformatics pathway prediction |
Journal of clinical medicine |
Low |
35807116
|
| 2023 |
Tat-CIAPIN1 protein protects pancreatic β-cells from hIAPP-induced toxicity by reducing MAPK activation and regulating COX-2, iNOS, Bcl-2, Bax, and Caspase-3; in an HFD/STZ T2DM mouse model, Tat-CIAPIN1 ameliorated pathological changes in pancreatic β-cells and reduced fasting blood glucose. |
Tat fusion protein transduction, cell viability, Western blotting, T2DM mouse model (HFD+STZ), blood glucose measurement |
International journal of molecular sciences |
Low |
37445656
|
| 2024 |
CIAPIN1 downregulation in breast cancer cells suppresses proliferation, migration, and glycolysis (pyruvate, lactate, ATP production) and reduces PKM2 expression and STAT3 phosphorylation, placing CIAPIN1 upstream of the STAT3/PKM2 pathway. |
siRNA knockdown, RT-qPCR, Western blotting, proliferation/migration assays, metabolite measurement |
Scientific reports |
Low |
39242716
|
| 2025 |
CIAPIN1 overexpression in LPS-induced podocytes activates the PI3K/AKT pathway (elevated p-PI3K and p-Akt), increases ferroptosis-protective proteins SLC7A11 and GPX4, and attenuates ferroptosis markers (MDA, Fe2+); PI3K inhibitor LY294002 reverses these effects, confirming pathway dependency. |
CIAPIN1 overexpression vector, PI3K inhibitor (LY294002), Western blotting, MDA/Fe2+ measurement, RT-qPCR |
BMC nephrology |
Low |
40259237
|
| 2025 |
CIAPIN1 promotes proliferation and migration of PDGF-BB-activated airway smooth muscle cells; knockdown inhibits p-PI3K, p-Akt, p-JAK2, and p-STAT3, placing CIAPIN1 upstream of both PI3K/AKT and JAK2/STAT3 signaling in this context. |
siRNA knockdown, Western blotting, proliferation/migration/apoptosis assays |
Physiological reports |
Low |
40338178
|
| 2025 |
A STAT3 inhibitor (CAB) suppresses VSMC CIAPIN1 transcription via STAT3/SH2 domain binding; CIAPIN1 overexpression reverses CAB-mediated suppression of VSMC proliferation, migration, and intimal hyperplasia, establishing CIAPIN1 as a transcriptional target of STAT3 in the CIAPIN1/JAK2/STAT3 axis. |
Compound binding to STAT3 SH2 domain, CIAPIN1 overexpression rescue, neointima animal models, Western blotting |
Acta pharmaceutica Sinica. B |
Medium |
40370537
|
| 2026 |
CIAPIN1 directly binds consensus sites in the Tp53 promoter (confirmed by ChIP and dual-luciferase reporter assay) and represses Tp53 transcription in VSMCs. PDGF-BB-induced ROS production promotes nuclear translocation of CIAPIN1 via a C-terminal NLS (residues 236–239) through the importin-α/β pathway; deletion of the NLS (Δ236–239) or blocking nuclear import with NAC or ivermectin restores p53 expression and reduces neointimal formation in vivo. |
ChIP assay, dual-luciferase reporter assay, site-directed mutagenesis of NLS, ROS scavenger (NAC), importin inhibitor (ivermectin), subcellular fractionation, rat carotid balloon injury model |
Theranostics |
High |
42094595
|
| 2026 |
CIAPIN1 interacts functionally with OPA1 (optic atrophy 1): CIAPIN1 overexpression maintains mitochondrial membrane potential and restores mitochondrial function-related proteins in LPS-stimulated renal tubular cells, while OPA1 overexpression rescues the detrimental effects of CIAPIN1 knockdown on apoptosis and mitochondrial dysfunction, defining a CIAPIN1–OPA1 signaling axis. WTAP promotes m6A modification of CIAPIN1 mRNA, reducing its expression under LPS. |
Gain- and loss-of-function (overexpression and siRNA), mitochondrial membrane potential assay, Western blotting, cecal ligation and puncture AKI mouse model, m6A modification analysis |
Pathology, research and practice |
Medium |
41713137
|