| 1996 |
CMKLR1 encodes a seven-transmembrane G protein-linked receptor with sequence homology to chemokine receptors, expressed in hematopoietic and immune tissues; chromosomal localization to 12q24.1 established by FISH. |
Molecular cloning, FISH chromosomal mapping, Northern blot expression profiling |
Cytogenetics and cell genetics |
Medium |
8976386
|
| 1998 |
ChemR23 (CMKLR1) is expressed in monocyte-derived dendritic cells and macrophages and functions as a coreceptor for SIV and some primary HIV-1 strains in cell fusion assays. |
RT-PCR expression profiling, cell fusion coreceptor assay |
European journal of immunology |
Medium |
9603476
|
| 2003 |
TIG2/chemerin (residues 21–154 of the prepropeptide) was identified as the natural ligand of ChemR23 (CMKLR1) via reverse pharmacology screening of peptide libraries from human hemofiltrate. |
Reverse pharmacology peptide library screening, receptor binding assay |
FEBS letters |
High |
14675762
|
| 2005 |
ChemR23 (CMKLR1) is expressed and functional in plasmacytoid and myeloid dendritic cells; recombinant chemerin induces transmigration of these DCs across endothelial monolayers, and ChemR23+ DCs localize near chemerin-expressing high endothelial venules in lymphoid organs. |
Flow cytometry, transendothelial migration assay, immunohistochemistry, co-localization |
The Journal of experimental medicine |
High |
15728234
|
| 2007 |
RvE1 binds specifically to ChemR23 (CMKLR1) on human PMNs (Kd ~48 nM); RvE1 also binds recombinant BLT1 (Kd 45 nM) and acts as a partial agonist at BLT1, inhibiting adenylate cyclase and NF-κB activation, while its anti-inflammatory actions at higher doses involve ChemR23-mediated counterregulatory mechanisms. |
[3H]RvE1 radioligand binding assay, adenylate cyclase assay, NF-κB reporter assay, BLT1 knockout mouse peritonitis model |
Journal of immunology |
High |
17339491
|
| 2008 |
Chemerin requires proteolytic processing of its C-terminus for anti-inflammatory activity; the C-terminal peptide chemerin15 (A140–A154) suppresses macrophage activation and peritonitis at picomolar concentrations in a ChemR23-dependent manner, as shown by complete loss of activity in ChemR23−/− mice. |
In vitro macrophage activation assay, zymosan peritonitis model, ChemR23 knockout mice |
The Journal of experimental medicine |
High |
18391062
|
| 2009 |
Mouse ChemR23 mediates chemerin-induced calcium mobilization and chemotaxis in dendritic cells and macrophages; these responses are abrogated in ChemR23 knockout mice. Chemerin reduces neutrophil infiltration and inflammatory cytokine release in LPS-induced lung inflammation in a ChemR23-dependent manner. |
Calcium mobilization assay, chemotaxis assay, ChemR23 KO mice, LPS-induced lung inflammation model |
Journal of immunology |
High |
19841182
|
| 2009 |
Chemerin/CMKLR1 signaling is required for adipocyte differentiation of bone marrow stromal cells; RNAi knockdown of chemerin or CMKLR1 abrogates adipogenesis and clonal expansion, while increasing osteoblast marker expression and mineralization; PPARγ-induced chemerin expression partially rescues adipogenesis. |
RNAi knockdown, differentiation assays, PPARγ overexpression rescue experiment |
Journal of bone and mineral research |
High |
19929432
|
| 2009 |
Chemerin activates ChemR23 in human endothelial cells, inducing angiogenesis through activation of PI3K/Akt and MAPK signaling pathways, and dose-dependently increases MMP-2 and MMP-9 gelatinolytic activity. |
In vitro angiogenesis assays (tube formation, migration), phosphorylation western blot, zymography |
Biochemical and biophysical research communications |
Medium |
20044979
|
| 2010 |
Chemerin15 enhances macrophage phagocytosis of microbial particles and efferocytosis of apoptotic cells via ChemR23, associated with increased actin polymerization and F-actin localization to the phagocytic cup; these effects require Syk kinase activity and are absent in ChemR23−/− macrophages. |
Phagocytosis assays, ChemR23 KO macrophages, Syk inhibitor, actin polymerization assay, in vivo peritonitis |
Journal of immunology |
High |
20363975
|
| 2010 |
Chemerin binding to ChemR23 in human articular chondrocytes induces phosphorylation of ERK1/2 and Akt, and promotes secretion of pro-inflammatory cytokines (IL-6, IL-8, TNF-α, IL-1β) and matrix metalloproteases (MMP-1, -2, -3, -8, -13). |
Phosphorylation western blot, ELISA cytokine quantification, cell stimulation assay |
Arthritis research & therapy |
Medium |
21192818
|
| 2011 |
ChemR23 knockout mice show increased neutrophilic infiltration, delayed viral clearance, and higher mortality in pneumonia virus of mice infection; ChemR23 recruits plasmacytoid DCs to promote type I interferon production and adaptive immune responses, while ChemR23 on non-leukocytic cells provides a separate anti-inflammatory function. |
ChemR23 KO mice, depletion/adoptive transfer of pDCs, chimeric mice, lung function measurement, interferon quantification |
PLoS pathogens |
High |
22072972
|
| 2011 |
CMKLR1-deficient mice show reduced adiposity, lower food consumption, decreased adipose/hepatic inflammation, and glucose intolerance with impaired glucose-stimulated insulin secretion and reduced skeletal muscle/adipose tissue glucose uptake, demonstrating CMKLR1's role in adipose development, inflammation, and glucose homeostasis. |
CMKLR1 KO mouse model, body composition analysis, glucose/insulin tolerance tests, immune cell profiling, glucose uptake assay |
Endocrinology |
High |
22186410
|
| 2013 |
ChemR23 is expressed in neutrophil granules and is upregulated upon neutrophil activation; chemerin15 inhibits integrin activation and clustering via ChemR23, reducing neutrophil adhesion and chemotaxis in vitro and inducing detachment of adherent neutrophils from inflamed endothelium, reducing heart damage in a murine myocardial infarction model. |
Flow cytometry, integrin activation assay, intravital microscopy, murine MI model, ChemR23 KO |
EMBO reports |
High |
23999103
|
| 2014 |
The small molecule α-NETA inhibits chemerin-stimulated β-arrestin2 association with CMKLR1 and blocks chemerin-triggered CMKLR1+ cell migration, acting as a CMKLR1 antagonist; α-NETA delays EAE onset and reduces CNS mononuclear cell infiltrates. |
β-arrestin2 recruitment assay, chemotaxis assay, EAE mouse model (active immunization and adoptive transfer) |
PloS one |
High |
25437209
|
| 2015 |
Chemerin signals through CMKLR1 via the RhoA/ROCK pathway to activate the transcriptional regulator SRF; RhoA, ROCK, p38, and Gαi/o signaling are all required for chemerin-mediated chemotaxis; GPR1 is confirmed as a functional chemerin receptor with similar but distinct signaling properties. |
Luciferase reporter assays, pathway-specific inhibitors, chemotaxis assay, CMKLR1/GPR1 transfection |
Molecular and cellular endocrinology |
Medium |
26363224
|
| 2015 |
Aβ42 binds specifically to CMKLR1 in stably transfected RBL cells; Aβ42 induces CMKLR1-dependent cell migration through ERK1/2, PKA, and Akt pathways (but not Ca2+ mobilization), and CMKLR1 mediates internalization of the Aβ42-CMKLR1 complex in primary glial cells. |
Radioligand-like specific binding in transfected cells, migration assays, signaling pathway inhibitors, internalization assay |
Journal of Alzheimer's disease |
Medium |
25079809
|
| 2015 |
ChemR23 expression is regulated at the transcriptional level; M1 macrophages (stimulated by LPS or IFN-γ) upregulate ChemR23 from promoter P3, are chemotactic to chemerin, and are repolarized toward a resolution phenotype by RvE1 through ChemR23, increasing IL-10 and phagocytosis; M2 macrophages do not express surface ChemR23. |
5' RACE, promoter analysis, FACS, chemotaxis assay, RvE1 stimulation, phagocytosis assay |
Journal of immunology |
High |
25637017
|
| 2016 |
Chemerin binding to CMKLR1 activates all three Gαi subtypes (Gαi1, Gαi2, Gαi3) and both Gαo isoforms (Gαoa, Gαob), recruits β-arrestin1 and β-arrestin2, and induces receptor internalization and ERK1/2 phosphorylation; ERK1/2 phosphorylation requires both Gαi/o and β-arrestin2 activation but not β-arrestin1. |
BRET-based G protein activation biosensors, β-arrestin recruitment assay, receptor internalization assay, ERK phosphorylation western blot |
PloS one |
High |
27716822
|
| 2017 |
The IUPHAR nomenclature review confirmed that chemerin activates CMKLR1 (Chemerin1) via Gi/o coupling causing inhibition of adenylyl cyclase and increased Ca2+ flux; human chemerin21-157 is the most active form; CCX832 selectively blocks CMKLR1; resolvin E1 also activates CMKLR1. |
Pharmacological review integrating radioligand binding, cAMP, Ca2+ assays from multiple labs |
Pharmacological reviews |
High |
29279348
|
| 2018 |
Targeted deletion of ERV1/ChemR23 in hyperlipidemic mice increases oxidized LDL uptake, reduces phagocytosis, and enlarges atherosclerotic plaques; resolvin E1-mediated effects on oxLDL uptake and phagocytosis in macrophages are dependent on ERV1/ChemR23 signaling. |
Erv1/ChemR23 KO × Apoe−/− mice, atherosclerosis histology, macrophage phagocytosis/oxLDL uptake assays, lipidomics |
Circulation |
High |
29739755
|
| 2018 |
Chemerin activates CMKLR1 in oesophageal squamous cancer cells, increasing MMP-1, MMP-2, and MMP-3 abundance and activity through protein kinase C and p44/42 MAPK pathways, promoting cancer cell invasion; the ChemR23 antagonist CCX832 inhibits this invasion. |
Boyden chamber invasion assays, organotypic assays, siRNA, immunoneutralisation, CCX832 antagonist, western blot/enzyme assay for MMPs |
British journal of cancer |
Medium |
27092781
|
| 2018 |
Chemerin-activated CMKLR1 signaling in inflammatory macrophages is regulated by GRK6 phosphorylation and β-arrestin 2 recruitment; GRK6- and β-arrestin 2-deficient macrophages show decreased CMKLR1 internalization following chemerin stimulation, increased migration toward chemerin, and altered AKT and ERK signaling. |
GRK6 and β-arrestin 2 KO mouse macrophages, receptor internalization assay, co-expression of GRK6 with CMKLR1, chemotaxis assay, AKT/ERK western blot |
Molecular immunology |
High |
30576947
|
| 2019 |
Chemerin suppresses hepatocellular carcinoma metastasis through CMKLR1 by upregulating PTEN expression and phosphatase activity via interference with PTEN-CMKLR1 interaction, reducing PTEN ubiquitination and decreasing p-Akt (Ser473); CMKLR1 knockdown abolishes chemerin-induced PTEN/Akt modulation. |
Co-immunoprecipitation, RNAi knockdown, phosphatase activity assay, ubiquitination assay, in vivo xenograft |
British journal of cancer |
High |
29717200
|
| 2019 |
ChemR23 deletion in smooth muscle cells prevents phenotypic switching to a synthetic/osteoblastic state; ChemR23-deficient VSMCs are resistant to phosphate-induced calcification; resolvin E1 inhibits VSMC calcification through ChemR23; ChemR23-deficient mice are protected against vitamin D3-induced vascular calcification. |
ChemR23 KO mouse VSMCs, in vitro calcification assay, in vivo calcification model, Fat-1 transgene epistasis |
Cardiovascular research |
High |
30597013
|
| 2019 |
ChemR23-deficient pDCs exhibit reduced migratory capacity and decreased CCR7 expression; adoptive transfer of WT vs. ChemR23 KO pDCs into Apoe−/− mice shows reduced accumulation of ChemR23-deficient pDCs in atherosclerotic lesions; hematopoietic ChemR23 deficiency increases M2 macrophage proportion and cholesterol efflux in atherosclerotic plaques. |
ChemR23 KO knockin eGFP mice, adoptive pDC transfer, bone marrow chimeras, atherosclerosis histology, cholesterol efflux assay |
Arteriosclerosis, thrombosis, and vascular biology |
High |
30786742
|
| 2019 |
Chemerin reduces neuronal apoptosis after neonatal hypoxic-ischemic encephalopathy via ChemR23/CAMKK2/AMPK signaling; specific inhibition of ChemR23, CAMKK2, or AMPK abolishes the anti-apoptotic effects of recombinant chemerin. |
Rat HIE model, intranasal chemerin administration, specific inhibitors, western blot for phospho-CAMKK2/AMPK, TUNEL/Fluoro-Jade staining |
Cell death & disease |
Medium |
30718467
|
| 2020 |
Chemerin/CMKLR1 axis promotes inflammation and pyroptosis in diabetic cardiomyopathy through NLRP3 inflammasome activation; CMKLR1 siRNA knockdown in vivo attenuates NLRP3, activated caspase-1, and IL-1β; in vitro, silencing either CMKLR1 or NLRP3 suppresses pyroptosis. |
siRNA knockdown in vivo and in vitro, NLRP3 KD double knockdown, LDH release, caspase-1 western blot, EthD-III staining |
Frontiers in physiology |
Medium |
32390873
|
| 2020 |
Exogenous chemerin exposure upregulates PTEN expression/activity and suppresses PD-L1 expression in human prostate and sarcoma tumor lines through CMKLR1; CMKLR1 knockdown abolishes these effects; signaling proceeds through PI3K/AKT/mTOR pathway; forced chemerin expression in DU145 xenografts suppresses tumor growth with increased PTEN and decreased PD-L1 in vivo. |
siRNA knockdown, specific PI3K/AKT/mTOR inhibitors, western blot, in vivo xenograft, T-cell cytotoxicity assay |
Clinical cancer research |
High |
32605911
|
| 2020 |
Abrogation of ChemR23 in Apoe−/− Fat-1tg mice abolishes the protective effects of endogenous omega-3 fatty acids on aortic valve calcification; resolvin E1 acts as a calcification inhibitor and its receptor ChemR23 is required for n-3 PUFA-mediated valve protection. |
ChemR23 KO × Fat-1tg × Apoe−/− mouse model, valvular lipidomics, echocardiography, histology |
Circulation |
High |
32506925
|
| 2021 |
The chemerin-CMKLR1 axis in adipocytes suppresses beige adipocyte-derived IL-33 by dampening cAMP-PKA signaling, thereby interrupting the feed-forward circuit between beige adipocytes and type 2 innate immunity required for cold-induced thermogenesis; adipocyte-specific CMKLR1 deletion enhances thermogenesis and protects against diet-induced obesity. |
Adipocyte-specific CMKLR1 KO mice, cold exposure, cAMP/PKA signaling assays, IL-33 quantification, innate immune cell profiling, diet-induced obesity model |
Science immunology |
High |
34330814
|
| 2021 |
An agonist anti-ChemR23 monoclonal antibody that induces receptor signaling promotes macrophage efferocytosis and reduces neutrophil apoptosis at the site of inflammation; it accelerates resolution of acute inflammation and triggers resolution in chronic colitis models. |
Agonist mAb characterization, macrophage efferocytosis assay, neutrophil apoptosis assay, acute peritonitis model, chronic colitis mouse model |
Science advances |
High |
33811066
|
| 2022 |
Chemerin enhances mesenchymal features of glioblastoma via CMKLR1 by suppressing ubiquitin-proteasomal degradation of CMKLR1, thereby enhancing NF-κB pathway activation; chemerin promotes TAM recruitment and M2 polarization via CMKLR1/NF-κB axis, which further drives GBM mesenchymal phenotype. |
CMKLR1 ubiquitination/degradation assay, NF-κB reporter assay, TAM co-culture, GBM xenograft, α-NETA pharmacological blockade |
Oncogene |
Medium |
35459783
|
| 2022 |
ChemR23 agonists RvE1 and chemerin-9 ameliorate diabetes-associated cognitive impairment by inhibiting NLRP3 inflammasome activation through the Nrf2/TXNIP pathway; genetic deletion of ChemR23 in diabetic mice exacerbates cognitive impairment and oxidative stress, abolishing beneficial effects of agonists. |
ChemR23 KO mice, RvE1/chemerin-9 treatment, Nrf2/TXNIP western blot, NLRP3 inflammasome assays, cognitive behavioral tests |
Redox biology |
Medium |
36446229
|
| 2023 |
RvE1/ChemR23 ameliorates angiotensin II-induced hypertension and vascular remodeling by activating AMPKα/Nrf2 signaling in VSMCs, inhibiting the canonical NF-κB/Ccl5 pathway to reduce macrophage and T-cell infiltration and suppressing VSMC phenotypic transformation and proliferation; knockdown of ChemR23 reverses these protective effects. |
AAV9-shRNA ChemR23 knockdown in mice, Ang II hypertension model, blood pressure measurement, aortic histology, AMPKα/Nrf2/NF-κB pathway western blot, immune cell quantification |
Hypertension |
Medium |
37800344
|
| 2024 |
CMKLR1 controls lipid metabolism in clear cell renal cell carcinoma by enforcing suppression of adipose triglyceride lipase, regulating sterol regulatory element-binding protein 1c and CD36 scavenger receptor-mediated lipid uptake; genetic or pharmacological suppression of CMKLR1 induces apoptosis, ferroptosis, and autophagy, reducing ccRCC tumor growth in patient-derived xenografts. |
siRNA/shRNA knockdown, α-NETA pharmacological inhibition, lipidomic profiling, transcriptomic profiling, patient-derived xenograft models |
Cancer research |
High |
38640229
|