Cited by 424Iron Metabolism and DisordersTrace Elements in HealthBacterial Genetics and Biotechnology

Divalent-metal transport by NRAMP proteins at the interface of host–pathogen interactions

Forbes, John R., Gros, Phillippe·2001·Trends in Microbiology

Abstract

The NRAMP family of divalent-metal transporters plays a key role in the homeostasis of iron and other metals. NRAMP2 (DMT1) acts as an iron-uptake protein in both the duodenum and in peripheral tissues. NRAMP1 functions as a divalent-metal efflux pump at the phagosomal membrane of macrophages and neutrophils, and mutations in NRAMP1 cause susceptibility to several intracellular pathogens. NRAMP homologues have been identified in bacteria and are involved in acquiring divalent metals from the extracellular environment. Interestingly, bacterial and mammalian NRAMP proteins would compete for the same essential substrates within the microenvironment of the phagosome, at the interface of host-pathogen interactions.

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Crossref · 10.1016/s0966-842x(01)02098-4

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  • Iron homeostasis and Lcn2 formation are linked to the activity of NRAMP1, which confers resistance to infections with intracellular pathogens such as Leishmania, Salmonella, or Mycobacteria.

    “Iron homeostasis and Lnc2 formation are also linked to the activity of natural resistance associated macrophage protein 1 (NRAMP1 or SLC11A1), conferring resistance to infections with intracellular pathogens, such as Leishmania, Salmonella, or Mycobacteria (219, 220).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [219]

  • Macrophages express a phagolysosomal protein known as NRAMP1 (SLC11A1) which confers resistance to intracellular microbes such as Salmonella, Mycobacteria, or Leishmania.

    “Macrophages also express a phagolysosomal protein, known as NRAMP1 (natural resistance associated macrophage protein 1, SLC11A1) which confers resistance to intracellular microbes such as Salmonella, Mycobacteria, or Leishmania (Forbes and Gros, 2001).”

    From The Role of Iron Regulation in Immunometabolism and Immune-Related Disease (2019) · cites this paper as Forbes and Gros, 2001

  • Most studies have shown that Nramp1 shifts iron and other divalent cations from the phagolysosome to the cytosol.

    “Most studies have shown that Nramp1 shifts iron and other divalent cations from the phagolysosome to the cytosol.”
  • Nramp1 is a phagolysosomal transporter with homology to Dmt1 (Nramp2).

    “A phagolysosomal transporter with homology to Dmt1 (Nramp2) is Nramp1 [8, 20, 71, 75].”
  • Early studies found differences among mouse strains in susceptibility to intracellular infections with Leishmania, Mycobacteria and Salmonella, but not virulent Mycobacterium tuberculosis.

    “Early studies of the genetic basis of resistance to infections uncovered differences among mouse strains in their susceptibility to intracellular infections with a group of diverse microbes that included Leishmania, Mycobacteria and Salmonella [43] but not virulent strains of Mycobacterium tuberculosis [44].”

    From Iron and infection (2018) · cites this paper as [43]

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Authors
Forbes, J. R., & Gros, P.
Affiliations
McGill University (CA)
Corresponding author
Gros, Phillippe
Venue
Trends in Microbiology
Publisher
Elsevier BV
Published
2001-08
Volume
9
Issue
8
Pages
397-403
ISSN
0966-842X (ISSN-L)
OpenAlex
W2093427530
Cited by
424
References
68
Citations by year
2026: 5 · 2025: 6 · 2024: 5 · 2023: 8 · 2022: 12 · 2021: 15 · 2020: 8 · 2019: 9 · 2018: 14 · 2017: 13 · 2016: 16 · 2015: 16 · 2014: 19 · 2013: 25 · 2012: 21
FWCI
3.73
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
NRAMP1, DMT1, iron homeostasis, host-pathogen interaction, intracellular pathogens, phagosome, metal transporters
MeSH terms
Natural Resistance-associated Macrophage Protein 1, Animals, Bacteria, Bacterial Infections, Carrier Proteins, Cations, Divalent, Humans, Iron, Macrophages, Membrane Proteins, Phagocytosis, Phagosomes, Cation Transport Proteins, Mice

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