ArticleThe Journal of biological chemistry2012
ZIP8 is an iron and zinc transporter whose cell-surface expression is up-regulated by cellular iron loading.
Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 237 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
237 citing papers in PubMed, 365 citations in OpenAlex.
- Multiple micronutrient supplementation improves micronutrient status in primary school children in Hai Phong City, Vietnam: a randomised controlled trial.Scientific reports · 2021Trial
- The Iron Lung: Ferroptosis and Iron Regulation in Aging and Lung Diseases.Physiology (Bethesda, Md.) · 2027Review
- The SLC-ome of membrane transport: from molecular discovery to physiology and clinical applications.Physiological reviews · 2026Review
- Functional screening of ZIP8 naturally occurring variants identifies pathogenic mutations and trafficking defects.The Journal of biological chemistry · 2026Article
- Fuelling repair: metabolic regulation of alveolar type 2 cell fate in lung regeneration and disease.Disease models & mechanisms · 2026Review
- Review
- Article
- Manganese: biology, physiology and role in disease.Cell discovery · 2026Review
- Overlaps in mammalian iron and manganese homeostasis: recent advances.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026Review
- Zinc Signaling in Acute Kidney Injury.Cells · 2026Review
- Molecular and therapeutic frontiers in anemia therapy.The Journal of clinical investigation · 2026Review
- Functional screening of ZIP8 naturally occurring variants identifies pathogenic mutations and trafficking defects.bioRxiv : the preprint server for biology · 2026Article
- Metal ions in aging and ocular diseases: biology, pathophysiology, and therapeutic strategies.npj aging · 2026Review
- Review
- Review
- Understanding molecular mechanisms driving cadmium-induced mitochondrial dysfunction in human metabolic liver disease.Environmental toxicology and pharmacology · 2026Review
- Regulation of mitochondrial iron homeostasis in tumor cells.Molecular medicine (Cambridge, Mass.) · 2026Review
- ZFT is the major iron and zinc transporter ineLife · 2026Article
- Genetic Architecture of N-Terminal Pro-B-Type Natriuretic Peptide in a Multiancestry Study Population.Circulation. Genomic and precision medicine · 2026Article
- Cadmium, Iron Deficiency Anemia and Hypophosphatemic Osteomalacia Due to Intravenous Iron Supplementation.Biomedicines · 2026Review
177 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
ZIP8 (SLC39A8) belongs to the ZIP family of metal-ion transporters. Among the ZIP proteins, ZIP8 is most closely related to ZIP14, which can transport iron, zinc, manganese, and cadmium. Here we investigated the iron transport ability of ZIP8, its subcellular localization, pH dependence, and regulation by iron. Transfection of HEK 293T cells with ZIP8 cDNA enhanced the uptake of (59)Fe and (65)Zn by 200 and 40%, respectively, compared with controls. Excess iron inhibited the uptake of zinc and vice versa. In RNA-injected Xenopus oocytes, ZIP8-mediated (55)Fe(2+) transport was saturable (K(0.5) of ∼0.7 μm) and inhibited by zinc. ZIP8 also mediated the uptake of (109)Cd(2+), (57)Co(2+), (65)Zn(2+) > (54)Mn(2+), but not (64)Cu (I or II). By using immunofluorescence analysis, we found that ZIP8 expressed in HEK 293T cells localized to the plasma membrane and partially in early endosomes. Iron loading increased total and cell-surface levels of ZIP8 in H4IIE rat hepatoma cells. We also determined by using site-directed mutagenesis that asparagine residues 40, 88, and 96 of rat ZIP8 are glycosylated and that N-glycosylation is not required for iron or zinc transport. Analysis of 20 different human tissues revealed abundant ZIP8 expression in lung and placenta and showed that its expression profile differs markedly from ZIP14, suggesting nonredundant functions. Suppression of endogenous ZIP8 expression in BeWo cells, a placental cell line, reduced iron uptake by ∼40%, suggesting that ZIP8 participates in placental iron transport. Collectively, these data identify ZIP8 as an iron transport protein that may function in iron metabolism.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.