| 2016 |
FTL protein localizes to the nucleus of GBM cells and associates with mitotic spindles. FTL physically interacts with GADD45A (confirmed by co-immunoprecipitation), and FTL knockdown activates the GADD45A/JNK pathway, inhibiting GBM cell growth. Co-transfection of FTL impedes GADD45A-induced reduction of cell viability. |
Immunofluorescence, co-immunoprecipitation, siRNA knockdown, immunoblotting, cell viability assays |
PloS one |
Medium |
26871431
|
| 2014 |
The 498-499InsTC mutation in FTL substitutes the last 9 amino acids and extends the C-terminus by 16 amino acids. Cyclic voltammetry on the purified mutant protein showed this structural change severely reduces the ability of FTL to store iron. In transgenic FVB mice expressing this mutant, accumulation of mutated ferritin in brain correlated with increased iron deposition and oxidative damage with age, and progressive motor coordination deficits. |
Cyclic voltammetry on purified protein, transgenic mouse model (FVB and C57BL/6 backgrounds), MRI, rotarod behavioral testing, ultrastructural analysis |
Neurobiology of disease |
High |
25447222
|
| 2022 |
NSUN5 binds FTL mRNA (shown by RNA immunoprecipitation) and methylates it at the 5-methylcytosine position; NSUN5 depletion reduces 5-methylcytosine levels on FTL RNA, lowers FTL protein, increases intracellular free iron, and leads to downregulation of GPX4 and accumulation of ROS and lipid peroxidation, promoting ferroptosis. Recognition of FTL by NSUN5 depends on recruitment of TRAP1 (shown by co-immunoprecipitation). |
RNA immunoprecipitation, co-immunoprecipitation, siRNA knockdown, overexpression, ROS/lipid peroxidation assays |
Cell death discovery |
Medium |
35249107
|
| 2020 |
HIF-1α directly binds to the HRE-3 element in the FTL promoter to transcriptionally upregulate FTL expression under hypoxia (confirmed by luciferase reporter and ChIP assays). FTL knockdown represses EMT and reduces migration/invasion of glioma cells via the AKT/GSK3β/β-catenin signaling pathway. |
Luciferase reporter assay, chromatin immunoprecipitation (ChIP), siRNA knockdown, wound healing/transwell assays, western blot, subcutaneous xenograft model |
Journal of experimental & clinical cancer research : CR |
Medium |
32677981
|
| 2007 |
A 25 bp deletion in the FTL promoter abolishing the transcription start site causes HHCS; in lymphoblastoid cells, the deletion allele is transcribed from an alternate start site within the lower stem of the iron-responsive element (IRE), and mutation carriers have high cellular L-ferritin levels, demonstrating that disruption of the transcription start site leads to de-repression of FTL translation. |
Sequencing of promoter/IRE region, lymphoblastoid cell transfection/expression analysis, genetic linkage in kindred |
Human mutation |
Medium |
17579362
|
| 2006 |
A missense mutation in FTL (474G>A; A96T) causes neuroferritinopathy with early-onset bilateral pallidal involvement. Affected individuals and carrier showed abnormally low levels of serum ferritin, consistent with loss of FTL iron-storage function. |
Genetic sequencing, clinical biochemistry (serum ferritin), MRI |
Neurology |
Low |
16116125
|
| 2006 |
Mutations in the IRE of FTL (c.-168G>A) cause hereditary hyperferritinemia cataract syndrome (HHCS) by disrupting the iron-responsive element in the 5'-UTR of FTL, leading to unregulated (constitutively high) FTL translation and elevated serum ferritin without iron overload. |
Genome-wide linkage analysis, sequencing of IRE region, hematological tests |
Molecular vision |
Medium |
16518306
|
| 2025 |
SIRT1 deacetylates FTL at the K181 residue (confirmed by co-immunoprecipitation and GST pulldown), upregulating FTL expression. FTL knockdown inhibits the ferroptosis-suppressive effect of SIRT1 overexpression in chondrocytes. In vivo, SIRT1 overexpression reduced OA severity via this FTL deacetylation mechanism. |
Co-immunoprecipitation, GST pulldown, quantitative RT-PCR, western blotting, IL-1β and DMM mouse OA models, ferroptosis assays (LDH, Fe2+, GSH, MDA, lipid ROS) |
Journal of bone and mineral metabolism |
Medium |
39786573
|
| 2026 |
HERC2 (a HECT-domain E3 ubiquitin ligase) directly interacts with FTL (validated by co-immunoprecipitation and ubiquitination assay) and promotes FTL ubiquitination and degradation, leading to intracellular iron accumulation, autophagy activation, lipid peroxidation, and chondrocyte ferroptosis in osteoarthritis. HERC2 deficiency in vivo preserved cartilage integrity. |
Immunoprecipitation-mass spectrometry, co-immunoprecipitation, ubiquitination assay, siRNA knockdown/overexpression, molecular docking, HERC2-deficient mouse DMM model |
Apoptosis : an international journal on programmed cell death |
Medium |
41854786
|
| 2024 |
FTL (ferritin) tightly regulates labile iron levels, and elevated FTL promotes iron-dependent DNA damage repair in ovarian cancer: iron downregulates POLQ (a HR inhibitor) and relieves its antagonism of RAD51, thereby promoting DNA repair and platinum resistance. FTH1/FTL are indispensable for this iron-triggered DNA repair pathway. |
Iron supplementation/chelation experiments, western blot, cell survival/migration assays, in vitro and in vivo xenograft |
Cell death & disease |
Low |
38740757
|
| 2025 |
Increasing neuronal FTL1 in the hippocampus of young mice alters labile iron oxidation states and promotes synaptic and cognitive features of hippocampal aging. Targeting (reducing) neuronal FTL1 in aged mouse hippocampi improves synaptic molecular changes and cognitive impairments. FTL1 knockdown-induced pro-aging effects are partially rescued by NADH supplementation, linking FTL1-mediated iron dysregulation to impaired ATP synthesis. |
Transcriptomics, mass spectrometry, AAV-mediated neuronal FTL1 overexpression/knockdown in mice, cognitive behavioral testing, neuronal nuclei RNA sequencing, NADH supplementation rescue |
Nature aging |
High |
40830655
|
| 2025 |
SCARA5 protein physically interacts with FTL (confirmed by co-immunoprecipitation) and reduces FTL ubiquitination, thereby stabilizing FTL protein. SCARA5 upregulation promotes ferroptosis in colon cancer cells through FTL; siRNA knockdown of FTL attenuates the pro-ferroptotic effect of SCARA5. |
Co-immunoprecipitation, siRNA knockdown, ubiquitination assay, cell ferroptosis assays |
American journal of cancer research |
Low |
40084377
|
| 2025 |
YY1 transcription factor binds the FTL promoter to repress its expression; YY1 knockdown alleviates FTL induction, ferroptosis, and pulmonary fibrosis caused by polystyrene nanoplastics. PS-NPs suppress GPX4 while inducing FTL, driving lipid peroxidation. |
Transcriptomic and proteomic profiling, in vitro BEAS-2B cell model, in vivo mouse aspiration model, YY1 promoter binding (implied ChIP), siRNA knockdown |
Materials today. Bio |
Low |
41560817
|
| 2026 |
Knockdown of FTL1 in cardiomyocytes induces ferroptosis and cellular senescence, phenotypes reversed by the ferroptosis inhibitor Ferrostatin-1, establishing FTL1 as a protective factor against cardiac ferroptosis and aging. |
Region-resolved quantitative proteomics, siRNA knockdown, Ferrostatin-1 rescue, aging mouse model (3, 12, 20 months) |
Cell death & disease |
Medium |
42177202
|
| 2024 |
GATA3 functions as an upstream transcription factor that directly regulates FTL expression: GATA3 knockdown reduces FTL levels while GATA3 overexpression increases them. Palmitic acid suppresses FTL by inhibiting GATA3 nuclear translocation, and AMPK activation rescues FTL expression and restores trophoblast function (confirmed by chromatin immunoprecipitation and dual-luciferase reporter assay). |
ChIP assay, dual-luciferase reporter assay, siRNA knockdown, overexpression, palmitic acid treatment, AMPK activator treatment, high-fat diet mouse model |
Hypertension (Dallas, Tex. : 1979) |
Medium |
40421527
|
| 2024 |
SPI1 (Salmonella pathogenicity island 1 transcription factor) directly upregulates FTL expression to promote glycolysis and metastasis in ovarian cancer, validated by dual-luciferase assay and ChIP. |
Dual-luciferase assay, chromatin immunoprecipitation, qRT-PCR, western blot, transwell assay, glycolysis measurement (ECAR, OCR), xenograft mouse model |
Expert review of anticancer therapy |
Medium |
39675923
|
| 2022 |
FTL knockdown in mesothelioma cells induces G1 cell cycle arrest accompanied by increased p21 and p27 and decreased CDK2 and phosphorylated Rb, demonstrating that FTL promotes cell cycle progression through G1 by modulating cyclin-CDK-Rb axis. |
siRNA knockdown, flow cytometry cell cycle analysis, western blot for p21, p27, CDK2, pRb |
Oncology letters |
Low |
35497939
|
| 1997 |
The FTL gene was precisely mapped to human chromosome band 19q13.3 by fluorescence in situ hybridization (FISH). |
In situ fluorescence hybridization (FISH) |
Annales de genetique |
Medium |
9526618
|