# Scavenger receptors: key players in the immunological puzzle of lupus

**Authors:** Sabine Hahn, Monika Chitre, Dominique Shepard, Romana Rashid, Zaida G. Ramirez-Ortiz

PMC · DOI: 10.3389/flupu.2025.1679564 · 2026-02-05

## TL;DR

This review explores how scavenger receptors contribute to the immune system's role in lupus and other inflammatory diseases.

## Contribution

The paper highlights the diverse and dual roles of scavenger receptors in both innate and adaptive immunity in autoimmune diseases.

## Key findings

- Scavenger receptors are involved in multiple organ systems and not limited to a single disease or symptom.
- They influence both innate and adaptive immune responses and can be pro- or anti-inflammatory.
- Scavenger receptors may serve as potential targets for developing therapeutics and biomarkers for autoimmune diseases.

## Abstract

Scavenger receptors (SRs) play an important role in the innate immune response by recognizing and binding a variety of ligands to initiate the removal of both altered self- and non-self-antigens. Over the last two decades, SRs have become a forefront for their role influencing and contributing to inflammatory disease pathways. The findings discussed in this review show that the immunological role SRs play is (1) found in multiple organ systems and not limited to one disease or subset of symptoms; (2) part of both the innate and adaptive immune response in addition to influencing inflammatory signaling via non-immune cell subtypes; (3) both pro- or anti-inflammatory depending on which SR class or cell signaling pathway is being observed; (4) potentially useful for the development of therapeutics and diagnostic or prognostic biomarkers for autoimmune disease pathology. Understanding the role of SRs in the context of inflammation and autoimmunity will shed some light on the comprehension of heterogeneous diseases, such as Systemic Lupus Erythematosus.

## Linked entities

- **Proteins:** SMS (spermine synthase)
- **Diseases:** Systemic Lupus Erythematosus (MONDO:0007915), inflammatory disease (MONDO:0021166)

## Full-text entities

- **Genes:** CD5L (CD5 molecule like) [NCBI Gene 922] {aka AIM, API6, CT-2, PRO229, SP-ALPHA, Spalpha}, Cxcl15 (C-X-C motif chemokine ligand 15) [NCBI Gene 20309] {aka Il8, Scyb15, lungkine, weche}, MMP9 (matrix metallopeptidase 9) [NCBI Gene 4318] {aka CLG4B, GELB, MANDP2, MMP-9}, Lgals3bp (lectin, galactoside-binding, soluble, 3 binding protein) [NCBI Gene 19039] {aka 90K, CyCAP, MAC-2BP, Ppicap, Tango10b}, CCL2 (C-C motif chemokine ligand 2) [NCBI Gene 6347] {aka GDCF-2, HC11, HSMCR30, MCAF, MCP-1, MCP1}, LRP2 (LDL receptor related protein 2) [NCBI Gene 4036] {aka DBS, GP330, LRP-2}, Il1b (interleukin 1 beta) [NCBI Gene 16176] {aka IL-1beta, Il-1b}, COX2 (cytochrome c oxidase subunit II) [NCBI Gene 4513] {aka COII, MTCO2}, HYOU1 (hypoxia up-regulated 1) [NCBI Gene 10525] {aka GRP-170, Grp170, HSP12A, IMD59, ORP-150, ORP150}, BTK (Bruton tyrosine kinase) [NCBI Gene 695] {aka AGMX1, AT, ATK, BPK, IGHD3, IMD1}, SPATA6 (spermatogenesis associated 6) [NCBI Gene 54558] {aka HASH, SRF-1, SRF1}, CXCL8 (C-X-C motif chemokine ligand 8) [NCBI Gene 3576] {aka GCP-1, GCP1, IL8, LECT, LUCT, LYNAP}, Tnf (tumor necrosis factor) [NCBI Gene 21926] {aka DIF, TNF-a, TNF-alpha, TNFSF2, TNFalpha, Tnfa}, TNF (tumor necrosis factor) [NCBI Gene 7124] {aka DIF, IMD127, TNF-alpha, TNFA, TNFSF2, TNLG1F}, MARCO (macrophage receptor with collagenous structure) [NCBI Gene 8685] {aka SCARA2, SR-A6}, CD68 (CD68 molecule) [NCBI Gene 968] {aka GP110, LAMP4, SCARD1}, SRF (serum response factor) [NCBI Gene 6722] {aka MCM1}, PTGS2 (prostaglandin-endoperoxide synthase 2) [NCBI Gene 5743] {aka COX-2, COX2, GRIPGHS, PGG/HS, PGHS-2, PHS-2}, HSP90AA1 (heat shock protein 90 alpha family class A member 1) [NCBI Gene 3320] {aka EL52, HEL-S-65p, HSP86, HSP89A, HSP90A, HSP90N}, IFNG (interferon gamma) [NCBI Gene 3458] {aka IFG, IFI, IMD69}, Hspa1b (heat shock protein family A (Hsp70) member 1B) [NCBI Gene 15511] {aka HSP70B1, Hsp70, Hsp70-1, Hsp70.1, hsp68}, CALR (calreticulin) [NCBI Gene 811] {aka CALR1, CRT, HEL-S-99n, RO, SSA, cC1qR}, LDLR (low density lipoprotein receptor) [NCBI Gene 3949] {aka LDLCQ2}, HP (haptoglobin) [NCBI Gene 3240] {aka HP2ALPHA2, HPA1S}, CCL3 (C-C motif chemokine ligand 3) [NCBI Gene 6348] {aka G0S19-1, LD78, LD78ALPHA, MIP-1-alpha, MIP1A, SCI}, SCARB1 (scavenger receptor class B member 1) [NCBI Gene 949] {aka CD36L1, CLA-1, CLA1, HDLCQ6, HDLQTL6, SR-BI}, THBS1 (thrombospondin 1) [NCBI Gene 7057] {aka THBS, THBS-1, TSP, TSP-1, TSP1}, NFKB1 (nuclear factor kappa B subunit 1) [NCBI Gene 4790] {aka CVID12, EBP-1, KBF1, NF-kB, NF-kB1, NF-kappa-B1}, TRIM8 (tripartite motif containing 8) [NCBI Gene 81603] {aka FSGSNEDS, GERP, RNF27}, MRC1 (mannose receptor C-type 1) [NCBI Gene 4360] {aka CD206, CLEC13D, CLEC13DL, MMR, MRC1L1, bA541I19.1}, MSR1 (macrophage scavenger receptor 1) [NCBI Gene 4481] {aka CD204, SCARA1, SR-A, SR-AI, SR-AII, SR-AIII}, IFNB1 (interferon beta 1) [NCBI Gene 3456] {aka IFB, IFF, IFN-beta, IFNB}, OLR1 (oxidized low density lipoprotein receptor 1) [NCBI Gene 4973] {aka CLEC8A, LOX1, LOXIN, SCARE1, SLOX1}, SCARF1 (scavenger receptor class F member 1) [NCBI Gene 8578] {aka SREC, SREC-I, SREC1}, CSF1 (colony stimulating factor 1) [NCBI Gene 1435] {aka CSF-1, MCSF, PG-M-CSF}, ICAM1 (intercellular adhesion molecule 1) [NCBI Gene 3383] {aka BB2, CD54, P3.58}, AOC3 (amine oxidase copper containing 3) [NCBI Gene 8639] {aka HPAO, SSAO, VAP-1, VAP1}, CXCR6 (C-X-C motif chemokine receptor 6) [NCBI Gene 10663] {aka BONZO, CD186, CDw186, STRL33, TYMSTR}, CD4 (CD4 molecule) [NCBI Gene 920] {aka CD4mut, IMD79, Leu-3, OKT4D, T4}, MAPK8 (mitogen-activated protein kinase 8) [NCBI Gene 5599] {aka JNK, JNK-46, JNK1, JNK1A2, JNK21B1/2, PRKM8}, SFI1 (SFI1 centrin binding protein) [NCBI Gene 9814] {aka PISD, PPP1R139, hSfi1p}, SRs [NCBI Gene 140821], HSPA4 (heat shock protein family A (Hsp70) member 4) [NCBI Gene 3308] {aka APG-2, HEL-S-5a, HS24/P52, HSPH2, RY, hsp70}, IL21 (interleukin 21) [NCBI Gene 59067] {aka CVID11, IL-21, Za11}, CDH5 (cadherin 5) [NCBI Gene 1003] {aka 7B4, CD144}, CD1C (CD1c molecule) [NCBI Gene 911] {aka BDCA1, CD1, R7}, CRP (C-reactive protein) [NCBI Gene 1401] {aka PTX1}, MOK (MOK protein kinase) [NCBI Gene 5891] {aka RAGE, RAGE-1, RAGE1, STK30}, VCAM1 (vascular cell adhesion molecule 1) [NCBI Gene 7412] {aka CD106, INCAM-100}, DMBT1 (deleted in malignant brain tumors 1) [NCBI Gene 1755] {aka GP340, SAG, SALSA, muclin}, Cd40 (CD40 antigen) [NCBI Gene 21939] {aka Bp50, GP39, HIGM1, IGM, IMD3, T-BAM}, HSP90B2P (heat shock protein 90 beta family member 2, pseudogene) [NCBI Gene 7190] {aka GRP94P1, GRP94b, HSP, HSPCP2, TRA1P1, TRAP1}, HSP90B1 (heat shock protein 90 beta family member 1) [NCBI Gene 7184] {aka ECGP, GP96, GRP94, HEL-S-125m, HEL35, TRA1}, IL6 (interleukin 6) [NCBI Gene 3569] {aka BSF-2, BSF2, CDF, HGF, HSF, IFN-beta-2}, ITGB3 (integrin subunit beta 3) [NCBI Gene 3690] {aka BDPLT16, BDPLT2, BDPLT24, CD61, FMAIT1, GP3A}, IL10 (interleukin 10) [NCBI Gene 3586] {aka CSIF, GVHDS, IL-10, IL10A, TGIF}, STAT1 (signal transducer and activator of transcription 1) [NCBI Gene 6772] {aka CANDF7, IMD31A, IMD31B, IMD31C, ISGF-3, STAT91}, Il6 (interleukin 6) [NCBI Gene 16193] {aka Il-6}, APP (amyloid beta precursor protein) [NCBI Gene 351] {aka AAA, ABETA, ABPP, AD1, APPI, CTFgamma}, CCL4 (C-C motif chemokine ligand 4) [NCBI Gene 6351] {aka ACT2, AT744.1, G-26, HC21, LAG-1, LAG1}
- **Diseases:** renal function decline (MESH:D060825), chronic liver injury (MESH:D056487), Autoimmune hemolytic anemia (MESH:D000744), CNS dysfunction (MESH:D002493), ischemic cardiomyopathy (MESH:D009202), peripheral injury (MESH:D059348), central nervous system (CNS) inflammation (MESH:D007249), paresthesia (MESH:D010292), mood disorders (MESH:D019964), autoimmune vasculitis (MESH:D014657), lymphadenopathy (MESH:D008206), complement (MESH:D007153), ALD (MESH:D000326), hyperemia (MESH:D006940), dyslipidemia (MESH:D050171), fracture (MESH:D050723), tumorigenesis (MESH:D063646), GN (MESH:D005921), endothelial dysfunction (MESH:D014652), immune-mediated diseases (MESH:C567355), platelet aggregation (MESH:D001791), Fever (MESH:D005334), arthritis (MESH:D001168), endothelial (MESH:D005642), avascular necrosis (MESH:D010020), myocardial infarction (MESH:D009203), sleep disruption (MESH:D019958), Pain (MESH:D010146), coronary artery disease (MESH:D003324), necrosis (MESH:D009336), vascular damage (MESH:D057772), MS (MESH:D009103), myocardial ischemia (MESH:D017202), leukopenia (MESH:D007970), skin (MESH:D012871), immunological defects (MESH:D007154), NETs (MESH:C536657), peripheral arterial disease (MESH:D058729), neuropsychiatric disease (MESH:D004194), swelling (MESH:D004487), chronic pancreatitis (MESH:D050500), gut dysbiosis (MESH:D064806), small fiber neuropathy (MESH:D000071075), entrapment neuropathy (MESH:D009408), CVD (MESH:D002318), mechanical allodynia (MESH:D006930), Cognitive dysfunction (MESH:D003072), heart failure (MESH:D006333), chronic liver diseases (MESH:D008107), LN (MESH:D008181), injury (MESH:D014947), depression (MESH:D003866), aortic lesion (MESH:D001018), Alzheimer's disease (MESH:D000544), headache (MESH:D006261), phantom pain (MESH:D010591), Organ damage (MESH:D000092124), ASCVD (MESH:D050197), hyperinflammatory disorders (MESH:D009358), chronic fatigue (MESH:D015673)
- **Chemicals:** LPS (MESH:D008070), celecoxib (MESH:D000068579), heme (MESH:D006418), belimumab (MESH:C511911), cholesterol (MESH:D002784), oxygen (MESH:D010100), PS (MESH:D010718), ROS (MESH:D017382), pristane (MESH:C009042), anifrolumab (MESH:C582345), LTA (MESH:C009900), iron (MESH:D007501), beta-glucans (MESH:D047071), SR-E1 (-), NO (MESH:D009569), prostaglandin (MESH:D011453), PGE2 (MESH:D015232), AGEs (MESH:D017127), cholesteryl esters (MESH:D002788), lipid (MESH:D008055)
- **Species:** Homo sapiens (human, species) [taxon 9606], Mus musculus (house mouse, species) [taxon 10090], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395]

## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12872056/full.md

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Source: https://tomesphere.com/paper/PMC12872056