Cited by 109Tuberculosis Research and EpidemiologyIron Metabolism and DisordersBacterial Genetics and Biotechnology

Mycobacterium tuberculosis acquires iron by cell-surface sequestration and internalization of human holo-transferrin

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Boradia, Vishant Mahendra, Malhotra, Himanshu, Thakkar, Janak Shrikant, Tillu, Vikas Ajit, Vuppala, Bhavana, Patil, Pravinkumar, Sheokand, Navdeep, Sharma, Prerna +3 more·2014·Nature Communications

Abstract

Mycobacterium tuberculosis (M.tb), which requires iron for survival, acquires this element by synthesizing iron-binding molecules known as siderophores and by recruiting a host iron-transport protein, transferrin, to the phagosome. The siderophores extract iron from transferrin and transport it into the bacterium. Here we describe an additional mechanism for iron acquisition, consisting of an M.tb protein that drives transport of human holo-transferrin into M.tb cells. The pathogenic strain M.tb H37Rv expresses several proteins that can bind human holo-transferrin. One of these proteins is the glycolytic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH, Rv1436), which is present on the surface of M.tb and its relative Mycobacterium smegmatis. Overexpression of GAPDH results in increased transferrin binding to M.tb cells and iron uptake. Human transferrin is internalized across the mycobacterial cell wall in a GAPDH-dependent manner within infected macrophages.

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  • Mycobacteria acquire iron through multiple avenues including acquisition from transferrin via the endocytic pathway, by directly binding iron-loaded transferrin via specific receptors, by uptake of cytoplasmic iron or heme iron by specific transporters, or by production of siderophores such as mycobactin.

    “Mycobacteria acquire iron through multiple avenues including the acquisition of the metal from transferrin via the endocytic pathway, by directly binding iron-loaded transferrin via specific receptors, by uptake of cytoplasmic iron or heme iron by specific transporters, or by the production of siderophores such as mycobactin, which can bind iron and re-utilize the metal (174–177).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [176]

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Research works printed but not linked: 3

  1. Piatigorsky, J. Gene Sharing and Evolution: the Diversity of Protein Functions (Harvard Univ. Press, 2009).
  2. Cooper, H. M. & Patterson, Y. in Current Protocols in Immunology (eds Coligan, J. E., Bierer, B. E., Margulies, D. H., Shevach, E. M. & Strober, W.) (John Wiley & Sons, Inc., 2008).
  3. McGraw, T. E. & Subtil, A. in Current Protocols in Cell Biology (eds Bonifacino, J. S., Dasso, M., Harford, J. B., Lippincott-Schwartz, J. & Yamada, K. M.) (John Wiley & Sons, Inc., 2001).

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Authors
Boradia, V. M., Malhotra, H., Thakkar, J. S., Tillu, V. A., Vuppala, B., Patil, P., Sheokand, N., Sharma, P., Chauhan, A. S., Raje, M., & Raje, C. I.
Affiliations
  • National Institute of Pharmaceutical Education and Research (IN)
  • Institute of Microbial Technology (IN)
Corresponding author
  • Raje, Manoj
  • Raje, Chaaya Iyengar
Venue
Nature Communications
Published
2014-08-28
Volume
5
Issue
1
Pages
4730-4730
ISSN
2041-1723 (ISSN-L)
OpenAlex
W1967490650
Cited by
108
References
61
Citations by year
2026: 8 · 2025: 5 · 2024: 9 · 2023: 13 · 2022: 6 · 2021: 8 · 2020: 9 · 2019: 12 · 2018: 9 · 2017: 7 · 2016: 11 · 2015: 9 · 2014: 2
FWCI
6.80
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Department of Biotechnology, Ministry of Science and Technology, India
  • Department of Science and Technology, Ministry of Science and Technology, India
  • Indian Institute of Science Education and Research Mohali
  • CSIR - Institute of Microbial Technology
Topics
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
Keywords
Mycobacterium tuberculosis, iron acquisition, transferrin, glyceraldehyde-3-phosphate dehydrogenase, siderophores, phagosome, macrophages, protein internalization, host-pathogen interaction, Mycobacterium smegmatis
MeSH terms
Amino Acid Sequence, Animals, Bacterial Proteins, Cell Wall, Female, Humans, Iron, Macrophages, Mice, Inbred BALB C, Molecular Sequence Data, Mycobacterium tuberculosis, Rabbits, Transferrin, Siderophores, Mycobacterium smegmatis, Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating), Immunoprecipitation, Host-Pathogen Interactions

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