vMIP-II (1-21) is a CXCR4 antagonist. vMIP-II has broad-spectrum interaction with CC and CXC chemokine receptors. vMIP-II (1-21) binds with CXCR4 with an IC50 value of 190 nM for competing with CXCR4 binding of 125I-SDF-1R[1].
Balixafortide (POL6326) is a potent, selective, well-tolerated peptidic CXCR4 antagonist with an IC50 < 10 nM. Balixafortide shows 1000-fold selective for CXCR4 than a large panel of receptors including CXCR7. Balixafortide blocks β-arrestin recruitment and calcium flux with IC50s < 10 nM. Balixafortide is also a potent hematopoietic stem and progenitor cell (HSPC) mobilizing agent. Anti-cancer effects[1][2].
Reparixin L-lysine salt is an allosteric inhibitor of chemokine receptor 1/2 (CXCR1/2) activation.
CXCR4 antagonist 1 is a potent CXCR4 antagonist. CXCR4 antagonist 1 has anti-HIV activity[1].
Elubrixin is a interleukin 8 inhibitor and CXCR2 selective antagonist.
Navarixin is a potent, allosteric antagonist of both CXCR1 and CXCR2, with Kd values of 41 nM for cynomolgus CXCR1 and 0.20 nM, 0.20 nM, 0.08 nM for mouse, rat and cynomolgus monkey CXCR2, respectivelly.
SX-682 is an orally bioavailable, potent allosteric inhibitor of CXCR1 and CXCR2. SX-682 can block tumor myeloid-derived suppressor cells (MDSCs) recruitment and enhance T cell activation and antitumor immunity[1].
KRH-3955 hydrochloride is an orally bioavailable CXCR4 antagonist. KRH-3955 hydrochloride inhibits SDF-1α binding to CXCR4 with an IC50 of 0.61 nM. KRH-3955 hydrochloride is also a highly potent and selective inhibitor of X4 HIV-1, with an EC50 of 0.3 to 1.0 nM[1].
AZD-8309 (AZD8309) is a potent and orally bioavailable CXCR2 antagonist that has been proposed to regulate the transmigration of neutrophils; significantly reduces MPO in the pancreas and lungs, and reduces intrapancreatic trypsin and elastase activity in caerulein-pancreatitis; also reduces cathepsin B activity and MPO in taurocholate-pancreatitis; also antagonises the CCR2b receptor but it is 10-fold less potent than at CXCR2. COPD Phase 1 Clinical
VUF11211 is an effective antagonist of CXCR3 that acts by extending from the minor pocket into the major pocket of the transmembrane domains.
LIT-927 is a locally and orally active CXCL12 neutraligand with anti-inflammatory effect, with a Ki of 267 nM for CXCL12-TR binding.
HF50731 (HF-50731) is a novel potent, selective CXCR4 antagonist with Ki of 19.8 nM in the CXCR4 competitive binding assay.HF50731 significantly inhibited SDF-1α-induced calcium mobilization (IC50=621 nM) and cell migration, and blocked HIV-1 infection via antagonizing CXCR4 coreceptor function (IC50=1.5 uM).The structure-activity relationship analysis demonstrated that HF50731 could primarily occupy the minor subpocket of CXCR4 and partially bind in the major subpocket by interacting with residues W94, D97, D171, and E288.
Burixafor hydrobromide (TG-0054 hydrobromide) is an orally bioavailable and potent antagonist of CXCR4 and a well water soluble anti-angiogenic drug that is of potential value in treating choroid neovascularization[1]. Burixafor hydrobromide (TG-0054 hydrobromide) mobilizes mesenchymal stem cells, attenuates inflammation, and preserves cardiac systolic function in a porcine model of myocardial infarction[2].
PS372424, a three amino-acid fragment of CXCL10, is a specific human CXCR3 agonist with anti-inflammatory activity, which inhibits the binding of CXCR3 ligand CXCL10 to CXCR3 receptor with IC50 of 42 nM[1][2][3].
A novel allosteric, noncompetitive dual CXCR1/2 inhibitor that inhibits human polymorphonuclear leukocyte (PMN) migration to CXCL8 in vitro with IC50 of 0.7 nM; prevents PMN infiltration and tissue damage in several models of IR injury in vivo; abrogates motility and induces apoptosis in cultured cutaneous and uveal melanoma cells and xenografts; also prevents inflammation-mediated damage in MLD-STZ, prevents and reverses diabetes in NOD mice. Diabetes Phase 2 Clinical
Olaptesed pegol (NOX-A12) L-oligoribonucleotide aptamer targeting CXCL12 based on a pegylated structure. Olaptesed pegol neutralizes CXCL12, and CXCL12 inhibition mobilizes chronic lymphocytic leukemia cells into the circulation and prevents their homing into the protective microenvironment[1].
CXCR4 antagonist 2 is a CXCR4 antagonist with an IC50 value of 47 nM.
Zaprinast (M&B 22948) is an inhibitor of cGMP-selective Phosphodiesterases(PDEs)[1]. Zaprinast is a G protein-coupled receptor (GPR) 35 agonist which activates rat GPR35 strongly and activates human GPR35 moderately[2]. Zaprinast reduces vessel remodeling through antiproliferative and proapoptotic effects[3].
AZD-5069 is a potent CXCR2 chemokine receptor antagonist, used for caner treatment.
BAM-12P, an endogenous opioid peptide, is a novel pro-Met-enkephalin. BAM-12P can activate human κ-opioid receptor (hKOR) with an EC50 of 101 nM and a pEC50 of 6.99. BAM-12P is a ligand for CXCR7 with an EC50 of 175 nM[1][2][3].
ACT-672125 is a potent CXCR3 antagonist with IC50 value of 239 nM in human blood. ACT-672125 has activity for hERG with IC50 value of 18μM. ACT-672125 can be used for the research of autoimmune diseases[1].
A potent, specific, noncompetitive dual CXCR1 and CXCR2 antagonist with IC50 of 38 nM (vs. CXCL1) and 36 nM (vs. CXCL8), respectively; inhibits CXCL1-induced Ca(2+) flux in human PMNs but has no effect on the Ca(2+) flux induced by C5a, fMLF, or PAF; antagonizes CXCL8-induced [(35)S]GTPγS binding (IC50=60 nM) and ERK1/2 phosphorylation in recombinant HEK293 cells expressed CXCR2; significantly inhibits inflammation in an in vivo murine model (0.2 mg/kg iv).
Pentixafor is a peptide that targets CXCR4. Pentixafor is capable of being labelled with 68Gallium (68Ga) for positron emission tomography (PET) imaging[1].
Danirixin is a selective, and reversible CXCR2 antagonist, with IC50 of 12.5 nM for CXCL8.
AZ10397767 is a potent, selective CXCR2 inhibitor that inhibits CXCL8 binding to CXCR2 with pIC50 of 9.0; weakly inhibits CXCL8 binding to CXCR1 with pIC50<7, and no affinity for CCR2 and CCR5; significantly attenuates IL-8-induced c-FLIP mRNA up-regulation whereas inhibition of AR- and/or NF-kappaB-mediated transcription attenuated IL-8-induced c-FLIP expression in LNCaP and PC3 cells, respectively; attenuates oxaliplatin-induced NF-kappaB activation, increases oxaliplatin cytotoxicity, and potentiates oxaliplatin-induced apoptosis in AIPC cells.
TAK-779 is a potent and selective nonpeptide antagonist of CCR5 and CXCR3, with a Ki of 1.1 nM for CCR5, and effectively and selectively inhibits R5 HIV-1, with EC50 and EC90 of 1.2 nM and 5.7 nM, respectively, in MAGI-CCR5 cells.