Cited by 317Immune Response and InflammationPhagocytosis and Immune RegulationBiomarkers in Disease Mechanisms

Scavenger receptors: role in innate immunity and microbial pathogenesis

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Areschoug, Thomas, Gordon, Siamon·2009·Cellular Microbiology

Abstract

Accumulating evidence shows that many scavenger receptors (SR), including SR-A, MARCO and CD36, represent an important part of the innate immune defence by acting as pattern-recognition receptors, in particular against bacterial pathogens. Several SR are expressed on macrophages and dendritic cells, where they act as phagocytic receptors mediating non-opsonic phagocytosis of pathogenic microbes. Another important function of some SR is to act as co-receptors to Toll-like receptors (TLR), modulating the inflammatory response to TLR agonists. On bacteria, the SR ligands have commonly been reported to be lipopolysaccharide and lipoteichoic acid, but recent advances in the field indicate that bacterial surface proteins play a more important role as target molecules for SR than previously thought. Interestingly, recent data show that major pathogens, including Streptococcus pyogenes and the group B streptococcus, have evolved mechanisms to evade SR-mediated recognition. Moreover, intracellular pathogens, such as hepatitis C virus and Plasmodium falciparum, utilize the SR to gain entry into host cells, focusing interest on the importance of SR also in the molecular pathogenesis of infectious diseases. This review highlights the complex interactions between SR and pathogenic microbes, and discusses the role of these interactions in host defence and microbial pathogenesis.

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Crossref · 10.1111/j.1462-5822.2009.01326.x

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  • Microglia express receptors that enable phagocytosis or endocytosis of apoptotic cells, protein aggregates, and lipoprotein particles, including scavenger receptors, LDL receptor family members, and TAM receptors.

    “Microglia also express several families of receptors that enable phagocytosis or endocytosis of apoptotic cells, protein aggregates, and lipoprotein particles. These receptors include scavenger receptors, such as CD36, SR1, and MARCO (20); LDL receptor family members, such as LDLR, ApoER2, and VLDL (21); and three receptor tyrosine kinases, Tyro3, Axl, and Mertk (TAM) (22).”

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Authors
Areschoug, T., & Gordon, S.
Affiliations
  • Lund University (SE)
  • University of Oxford (GB)
Corresponding author
  • Areschoug, Thomas
  • Gordon, Siamon
Venue
Cellular Microbiology
Published
2009-08
Volume
11
Issue
8
Pages
1160-1169
ISSN
  • 1462-5814 (ISSN-L)
  • 1462-5822
OpenAlex
W1980213997
Cited by
317
References
87
Citations by year
2026: 5 · 2025: 8 · 2024: 16 · 2023: 13 · 2022: 14 · 2021: 19 · 2020: 19 · 2019: 18 · 2018: 14 · 2017: 23 · 2016: 21 · 2015: 16 · 2014: 25 · 2013: 38 · 2012: 24
FWCI
9.78
Type
journal article
Language
en
Open access
Locations
  • Cellular Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
  • Anna-Greta Crafoords Stiftelse för Reumatologisk Forskning
  • Svenska Sällskapet för Medicinsk Forskning
  • Kungliga Fysiografiska Sällskapet i Lund
  • Medical Research Council
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Biomarkers in Disease Mechanisms
Keywords
scavenger receptors, innate immunity, pattern recognition receptors, macrophages, dendritic cells, lipopolysaccharide, lipoteichoic acid, bacterial surface proteins, pathogen evasion, Streptococcus pyogenes, Streptococcus agalactiae, hepatitis C virus, Plasmodium falciparum, intracellular pathogens, microbial pathogenesis
MeSH terms
Animals, Bacterial Proteins, Humans, Immunity, Innate, Mononuclear Phagocyte System, Streptococcal Infections, Streptococcus, Virulence, Receptors, Scavenger, Host-Pathogen Interactions

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