Cited by 38Immune Response and InflammationPhagocytosis and Immune RegulationCellular transport and secretion

Stabilin Receptors Clear LPS and Control Systemic Inflammation

Open access
Cabral, Fatima, Al-Rahem, Mustafa, Skaggs, John, Thomas, Thushara A., Kumar, Naresh, Wu, Qian, Fadda, Paolo, Yu, Lianbo +8 more·2021·iScience

Abstract

Lipopolysaccharides (LPSs) cause lethal endotoxemia if not rapidly cleared from blood circulation. Liver sinusoidal endothelial cells (LSEC) systemically clear LPS by unknown mechanisms. We discovered that LPS clearance through LSEC involves endocytosis and lysosomal inactivation via Stabilin-1 and 2 (Stab1 and Stab2) but does not involve TLR4. Cytokine production was inversely related to clearance/endocytosis of LPS by LSEC. When exposed to LPS, Stabilin double knockout mice (Stab DK) and Stab1 KO, but not Stab2 KO, showed significantly enhanced systemic inflammatory cytokine production and early death compared with WT mice. Stab1 KO is not significantly different from Stab DK in circulatory LPS clearance, LPS uptake and endocytosis by LSEC, and cytokine production. These data indicate that (1) Stab1 receptor primarily facilitates the proactive clearance of LPS and limits TLR4-mediated inflammation and (2) TLR4 and Stab1 are functionally opposing LPS receptors. These findings suggest that endotoxemia can be controlled by optimizing LPS clearance by Stab1.

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Crossref · 10.1016/j.isci.2021.103337

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87 of 87 references verified0 citation errors · 0 not checkable

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  • Early microglial changes included significant upregulation of gene sets involved in inflammatory processes, interferon response, Fc receptors, MHC class II components, and complement components.

    “Early changes included significant upregulation of gene sets involved in inflammatory processes (IL1B, CSF1R, STAB1, NINJ1, JAK3)61–65, interferon response (IRF1, IRF7, IFI16), Fc receptors (FCGR1A, FCGR1B, FCGR2A, FCGR3B), components of the class II major histocompatibility complex (MHC) (CD74, HLA-DRB5) and complement components (C1QA, C1QB) (Fig. 6d, top, red).”

    From Integrated multimodal cell atlas of Alzheimer’s disease (2024) · cites this paper as [65]

    The citation is attached to the inflammatory-process genes, including STAB1. The Results section reports inflammatory gene changes in LPS-stimulated liver sinusoidal endothelial cells, and the Discussion links Stab1 to control of systemic inflammation; neither establishes early upregulation of STAB1 or inflammatory gene sets in microglia. The paper does not support the other microglial gene-set changes in the claim. (LLM, conf=0.84)

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Research works printed but not linked: 1

  1. Triantafilou K. Triantafilou M. Fernandez N. Lipopolysaccharide (LPS) labeled with Alexa 488 hydrazide as a novel probe for LPS binding studies Cytometry 41 2000 316 320 11084617

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Authors
Cabral, F., Al-Rahem, M., Skaggs, J., Thomas, T. A., Kumar, N., Wu, Q., Fadda, P., Yu, L., Robinson, J. M., Kim, J., Pandey, E., Sun, X., Jarjour, W. N., Rajaram, M. V. S., Harris, E. N., & Ganesan, L. P.
Affiliations
  • The Ohio State University (US)
  • University of Massachusetts Lowell (US)
  • University of Nebraska–Lincoln (US)
Corresponding author
Ganesan, Latha P.
Venue
iScience
Publisher
Elsevier BV
Published
2021-11
Volume
24
Issue
11
Pages
103337
ISSN
2589-0042 (ISSN-L)
OpenAlex
W3208062907
Cited by
38
References
90
Citations by year
2026: 10 · 2025: 12 · 2024: 8 · 2023: 7 · 2021: 1
FWCI
1.49
Type
journal article
Language
en
Open access
Locations
  • iScience (publishedVersion, cc-by-nc-nd)
  • SSRN Electronic Journal (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Lincoln (University of Nebraska) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health (AR066330)
  • NHLBI (HL150536, HL130864)
  • National Institute of Allergy and Infectious Diseases (AI146252, AI146690)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
Keywords
stabilin-1, stabilin-2, liver sinusoidal endothelial cells, endocytosis, endotoxemia, systemic inflammation, TLR4, cytokine production

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