| 2022 |
TPI1 nuclear translocation (rather than its cytoplasmic glycolytic activity) drives oncogenic function in lung adenocarcinoma; nuclear accumulation is induced by extracellular stress such as chemotherapy agents and peroxide, facilitating chemoresistance. |
Knockdown/overexpression of TPI1, catalytic-dead mutants, subcellular fractionation, xenograft tumor models, IHC of clinical LUAD vs. adjacent normal tissue |
Cell death & disease |
Medium |
35246510
|
| 2023 |
In human lung adenocarcinoma, TPI1 activity is regulated by phosphorylation at Ser21 by salt-inducible kinases (SIKs) in an LKB1-dependent manner, modulating metabolic flux between glycolysis completion and glycerol-lipid production. In mice, the equivalent residue is Cys21, which can be oxidized to alter TPI1 activity independently of SIKs/LKB1, revealing an evolutionary divergence in TPI1 regulation. |
Phosphoproteomics, metabolomics, site-directed mutagenesis, genetically engineered human cell lines and mouse models (GEMM) |
Cancer discovery |
High |
36715544
|
| 2024 |
Dopaminylation of glutamine 65 (Q65) of TPI1 in endothelial cells directionally enhances TPI1's enzymatic activity to convert DHAP to GAP, shifting flux away from ether phospholipid synthesis toward glucose metabolism, thereby attenuating lipid peroxidation and suppressing ferroptosis to promote lung regeneration over fibrosis. |
Chemoproteomic identification of dopaminylation site, site-directed mutagenesis (Q65), metabolic flux analysis, ferroptosis assays, in vivo lung injury/fibrosis models |
Cell metabolism |
High |
39111287
|
| 2022 |
TPI1 interacts with SQSTM1/P62, and P62 promotes ubiquitin-dependent proteasomal degradation of TPI1 in breast cancer cells. TPI1 also interacts with CDCA5 to stabilize it, activating the PI3K/AKT/mTOR pathway and driving EMT and aerobic glycolysis. |
Co-IP, mass spectrometric analysis, ubiquitination assay, immunofluorescence, overexpression/knockdown in cells and mouse xenograft models |
Journal of translational medicine |
Medium |
35509067
|
| 2021 |
Rab20 downregulation in hepatocellular carcinoma reduces TPI1 loading into extracellular vesicles; EVs with reduced TPI1 enhance aerobic glycolysis and promote HCC cell growth and motility, establishing a mechanistic link between EV-associated TPI1 and tumor glucose metabolism. |
Proteomic profiling of EVs, Rab20 knockdown/restoration, TPI1 knockdown, glycolytic inhibitor rescue experiments, motility and growth assays |
Journal of extracellular vesicles |
Medium |
34401050
|
| 2019 |
The Arg189 residue of TPI1 participates in two salt bridges on the backside of the enzyme dimer interface; mutation at this position (Arg189Gln) disrupts coordination of the substrate-binding site and key catalytic residues, markedly reducing protein stability and enzyme levels in vivo and causing neurologic deficits. |
Genomic engineering in Drosophila (homologous Arg mutation), compound heterozygote animal motor behavior assays, patient fibroblast protein quantification, structural analysis of dimer interface salt bridges |
Biochimica et biophysica acta. Molecular basis of disease |
High |
31075491
|
| 2025 |
TPI1 directly binds the BH3 domain of Beclin-1, competitively displacing Bcl-2 from Beclin-1 and relieving Bcl-2-mediated inhibition of autophagy initiation; this interaction promotes PIK3C3-C1 complex formation, enhances ULK1-mediated phosphorylation of Beclin-1 at Ser15, and drives gemcitabine resistance in bladder cancer. |
Mass spectrometry, co-immunoprecipitation, transcriptome sequencing, transmission electron microscopy, dual luciferase/ChIP-qPCR for c-Myc binding to TPI1 promoter, in vivo xenograft models |
Cell death & disease |
Medium |
41429797
|
| 2025 |
TPI1 interacts with AKT and MDM2 to form a trimeric complex; TPI1 enhances AKT-driven phosphorylation of MDM2 at Ser166, promoting p53 ubiquitination and degradation in bladder cancer. The MDM2-F2 truncation (residues 181–360) binds TPI1, with amino acid 317 being critical for this interaction. |
Co-IP, domain-mapping with MDM2 truncation mutants, AKT knockdown rescue, ubiquitination assays, in vitro and in vivo functional assays |
Pharmacological research |
Medium |
40097123
|
| 2024 |
LDHA-mediated histone H3K18 lactylation (H3K18la) at the TPI1 promoter enhances TPI1 transcription; mutation of K69 in TPI1 ameliorates LPS-induced glycolysis in an OA chondrocyte cell model, identifying a direct epigenetic regulatory link between lactate metabolism and TPI1 expression. |
LDHA knockdown, H3K18la ChIP at TPI1 promoter, site-directed mutagenesis of TPI1 (K69), glycolysis assays, in vivo LDHA knockout OA mouse model |
Autoimmunity |
Medium |
39086231
|
| 2025 |
In the context of salt-sensitive hypertension, GRK4 R65L increases TPI1 phosphorylation and promotes its nuclear translocation; nuclear TPI1 reduces DHAP levels, which elevates H3K27ac at the Hao2 promoter, increasing Hao2 expression and renal oxidative stress, thereby causing a rightward shift in pressure-natriuresis and salt-sensitive hypertension. |
Immunoprecipitation-mass spectrometry (GRK4–TPI1 interaction), AAV9-mediated GRK4 depletion, measurement of nuclear DHAP, H3K27ac ChIP at Hao2 promoter, DHAP supplementation in HK-2 cells, GRK4 R65L transgenic mice |
Free radical biology & medicine |
Medium |
41407053
|
| 2025 |
USP5 deubiquitinase stabilizes TPI1 protein by removing its ubiquitin modifications; propofol increases TPI1 ubiquitination and reduces TPI1 protein stability, suppressing glycolysis and lung cancer progression through this USP5/TPI1 axis. |
Ubiquitination analysis, Co-IP, Western blot, xenograft in vivo models, glycolysis assays, STRING interaction database validation |
Biochemical genetics |
Medium |
40956511
|
| 2025 |
TPI1 silencing in cisplatin-resistant oral squamous cell carcinoma increases intracellular ROS, free iron, and lipid peroxidation, promoting ferroptotic cell death; TPI1 overexpression protects cells from ferroptosis, establishing TPI1 as a regulator of ferroptosis sensitivity. |
TPI1 knockdown/overexpression in cisplatin-resistant OSCC lines, measurement of lipid ROS, free iron, and lipid peroxidation markers, in vivo xenograft models, ferroptosis-related gene expression analysis |
Biomedicines |
Medium |
40427052
|
| 2024 |
The lncRNA Linc00942 (Linc00942) interacts with TPI1 and PKM2, promoting their phosphorylation, dimerization, and nuclear translocation; nuclear TPI1/PKM2 increases H3K4 acetylation and activates the STAT3/P300 axis, resulting in SOX9 transcriptional activation and TMZ resistance in glioblastoma. |
ChIRP-MS and ChIRP-WB to identify Linc00942–TPI1/PKM2 interactions, Co-IP, nuclear fractionation, SOX9 knockdown rescue in vitro and in vivo |
Advanced science |
Medium |
39342418
|
| 2024 |
The circular RNA circ-231 interacts with eIF4A3 and STAU1; this tripartite complex unwinds the secondary structure in the 5'UTR of TPI1 mRNA, enhancing its translation without altering mRNA transcript levels, thereby promoting ESCC cell migration and proliferation. |
ChIRP-MS, RNA immunoprecipitation, RNA pulldown, co-immunoprecipitation, EGFP reporter assay for 5'UTR unwinding, in vitro and in vivo proliferation/migration assays |
Journal of Cancer |
Medium |
38577609
|
| 2026 |
NOP2 methyltransferase deposits m5C modification on TPI1 mRNA, stabilizing it and increasing TPI1 protein expression; NOP2 knockdown reduces m5C on TPI1 mRNA and decreases TPI1 stability, impairing glycolysis in larynx cancer cells. |
MeRIP (methylated RNA immunoprecipitation), RIP, dual-luciferase reporter assay, NOP2 knockdown/overexpression, glycolysis assays, xenograft models |
Molecular carcinogenesis |
Medium |
41498196
|
| 2025 |
The R5G missense mutation in TPI1 produces a protein with essentially wild-type catalytic activity but markedly reduced steady-state protein levels due to increased instability of the mutant protein; compounds identified in a therapeutic screen significantly increased TPI1 protein levels and activity in patient cells with this allele, establishing protein stability as the primary pathogenic mechanism. |
Purification and biochemical characterization of recombinant TPIR5G, TPI activity assays, Western blot of patient fibroblasts, small-molecule treatment with TPI activity rescue assays |
Genes |
Medium |
41153421
|
| 2025 |
TPI1 promotes M2-like macrophage polarization in THP-1 cells and contributes to resistance to KRAS inhibitors in KRAS-mutant lung adenocarcinoma cells, identifying a role in tumor immune remodeling beyond its glycolytic function. |
TPI1 overexpression/knockdown functional assays in THP-1 macrophages and LUAD epithelial cells, KRAS inhibitor sensitivity assays, pan-cancer transcriptomic/proteomic/scRNA-seq analysis |
Biochemical and biophysical research communications |
Low |
41447883
|
| 2025 |
lncRNA HANR physically interacts with TPI1 protein, stabilizing it and promoting aerobic glycolysis and prostate cancer cell growth; silencing either HANR or TPI1 reduces glycolysis and tumor growth in vitro and in vivo. |
RNA immunoprecipitation, Co-IP, TPI1/HANR knockdown, glycolysis assays, in vivo xenograft models |
Experimental cell research |
Low |
40921293
|
| 2025 |
Under hypoxia, TPI1 and HK2 protein levels increase in non-neuronal C6 glioma cells via IRES-mediated post-transcriptional regulation (not transcriptional upregulation); functional IRES elements were identified in the 5'UTR of TPI1 mRNA, with activity dependent on the polypyrimidine tract binding (PTB) protein. |
Di-cistronic and promoter-less di-cistronic reporter assays, MTT and LDH leakage assays under hypoxia, Western blot and qRT-PCR distinguishing protein from mRNA changes |
Artificial cells, nanomedicine, and biotechnology |
Medium |
40105374
|
| 1979 |
TPI1 was regionally mapped to chromosome 12p (pter to p12) by karyological correlation analysis of human-Chinese hamster somatic cell hybrids with defined chromosome 12 deletions, establishing the chromosomal locus of the human TPI1 gene. |
Human-Chinese hamster somatic cell hybrid panel with X-ray/BrdU-induced chromosome breakage, isozyme marker analysis correlated to karyotype |
Cytogenetics and cell genetics |
High |
477403
|