cd4+ cells

Cyclic-di-GMP disodium (5GP-5GP disodium) is a STING agonist and a second messenger in bacteria. It is involved in a variety of processes in prokaryotes, including biofilm formation, motility, and cell cycle progression. Cyclic-di-GMP disodium (5GP-5GP disodium) exhibits antiproliferative activity against cancer cells, inducing increased CD4 receptor expression and cell cycle arrest, and is a novel therapeutic agent that can be developed to prevent or treat cancer.

Anisperimus (LF 15-0195) is an immunosuppressant that enhances activation-induced T-cell death by promoting caspase-8 and caspase-10 activation at the DISC level, and prevents CNS autoimmunity by promoting the development of Foxp3-expressing regulatory CD4 T cells.

ML-209 is an antagonist of retinoic acid receptor-related orphan receptor γt (RORγt; IC50= 1.1 μM in a reporter assay).1It inhibits RORγt-induced transcription in HEK293T cells expressing the human receptor (IC50= 300 nM). ML-209 inhibits RORγt-dependent differentiation of isolated na?ve cord blood human CD4+T cells into Th17 T helper cells.

Ethyl Caffeate (ETHYL 3,4-DIHYDROXYCINNAMATE) suppressed the differentiation of naive CD4+ T cells into Th1 in vitro. Furthermore, Ethyl Caffeate intensely blocked the transcriptional expression in interferon-γ-related signaling, including IFN-γ, T-bet, STAT1, and STAT4.

Benzoylmesaconine (Mesaconine 14-benzoate) is the most abundant component of Wutou decoction, which is widely used in China because of its therapeutic effect on rheumatoid arthritis. Benzoylmesconine has analgesic activity. Benzoylmesconine may improve the resistance of T6S-mice (or thermally injured mice) to the infection of HSV-1, through the induction of antagonistic CD4+ T cells against burn-associated type-2 T cells.

Temsavir (BMS626529) is a novel attachment inhibitor that targets HIV-1 gp120 and prevents its binding to CD4+ T cells.

Fostemsavir Tris (BMS-663068 Tris) is the prodrug of BMS-626529,is a oral, safe and effective inhibitor of HIV-1 attachment. It inhibits human immunodeficiency virus type 1 (HIV-1) infection by binding to gp120 and interfering with the attachment of virus to CD4+ T-cells.

BI8626 is a ubiquitin ligase HUWE1 inhibitor with protective effects against spontaneous desiccation syndrome in NOD ShiLtj mice.BI8626 inhibits intracellular cholesterol and decreases the expression of phosphorylated ZAP-70, CD25, and other activation markers, and inhibits the proliferation of CD4 T-cells.

DSPE-PEG(2000)-mannose, a pegylated and mannosylated derivative of 1,2-DSPE, has been employed in both in vitro and in vivo studies for delivering peptides, oligodeoxynucleotides, and siRNA via liposomes and lipid nanoparticles (LNPs). Fluorescently labeled LNPs containing DSPE-PEG(2000)-mannose predominantly accumulate in the liver and spleen of mice, significantly more so than in the brain, lungs, heart, kidneys, and pancreas. In immunization studies, liposomes encapsulating Human Papillomavirus type 16 (HPV16) E7 peptides with CpG oligodeoxynucleotides as an adjuvant led to reduced tumor volume and decreased numbers of CD4+ or CD8+ T cells and angiogenesis within tumors in a mouse lung cancer model using TC-1 cells.

SLW131 (Compound 10) is a CCR7 antagonist with strong affinity, showing a Ki of 9.85 nM. It inhibits CCL19-induced Go protein activation with an IC50 of 29.4 μM and β-arrestin2 recruitment with an IC50 of 6.0 μM. SLW131 also suppresses CCL19-induced morphological changes in primary BMDC cells and CCR7-mediated migration of mouse CD4+ T cells.

STAT3-IN-40 (Compound 8b) is an anticancer agent. It initiates immune responses in CD4+ and CD8+ T lymphocytes by inhibiting the expression and phosphorylation of STAT3, and induces ferroptosis and apoptosis in tumor cells. STAT3-IN-40 is valuable for research into cancer chemoimmunotherapy drugs.

5J-4 is a potent a blocker of calcium release-activated calcium (CRAC) channel and store-operated calcium entry (SOCE). 5J-4 reduces the production of IL-17 and decreases the expression of RORα and RORγt.

ARN-6039, an orally available inverse agonist of RORγ, targets Autoimmune Neuroinflammatory Demyelinating Disease. Its efficacy was demonstrated in a RORγ-activated IL-17A Prom LUCPorter assay in HEK 293 cells (360 nM) and in IL-17 release from CD4+T cell assays (220 nM).

Naringenin chalcone (Isosalipurpol) has antiallergic activity Naringenin chalcone suppresses asthmatic symptoms by inhibiting Th2 cytokine production from CD4 T cells. Naringenin chalcone is a potent tomato flavonoid that improves adipocyte metabolic functions and exerts insulin-sensitizing effects by activating an adiponectin-related pathway. Naringenin chalcone exhibits anti-inflammatory properties by inhibiting the production of proinflammatory cytokines in the interaction between adipocytes and macrophages, may be useful for ameliorating the inflammatory changes in obese adipose tissue.

Ferrichrome (iron-free) is a hydroxamate siderophore produced by various fungi (including U. sphaerogena) that facilitates iron chelation and uptake by these organisms and is also used by bacteria as a heterologous siderophore , including Pseudomonas aeruginosa and Vibrio parahaemolyticus. Ferrichrome (iron-free) (0.8 μM) inhibits concanavalin A-induced proliferation of mouse splenic monocytes and reduces the number of concanavalin A-stimulated CD4+ T cells. It also inhibits heme-catalyzed oxidation of LDL by hydrogen peroxide in a concentration-dependent manner.

CAY10774 is an inhibitor of the protein-protein interaction between programmed cell death 1 (PD-1) and its ligand PD-L1 (IC50= 15 nM in a homologous time-resolved fret (HTRF) assay).1It increases the activation of Jurkat cells expressing PD-1 in co-culture with artificial antigen-presenting cells (aAPCs) expressing PD-L1 (EC50= 6.6 μM in a reporter assay). CAY10774 increases surface expression of PD-1 on primary human CD4+and CD8+T cells co-cultured with aAPCs. 1.Konieczny, M., Musielak, B., Kocik, J., et al.Di-bromo-based small-molecule inhibitors of the PD-1/PD-L1 immune checkpointJ. Med. Chem.63(19)11271-11285(2020)

7β,27-dihydroxy Cholesterol is an oxysterol and agonist of retinoic acid receptor-related orphan receptor γ (RORγ) and RORγt. [1] It activates RORγ- or RORγt-dependent signaling with EC50 values of 691 and 1,045 nM, respectively, in reporter assays using HEK293T cells expressing the recombinant human receptors. 7β,27-dihydroxy Cholesterol is selective for RORγ and RORγt over a panel of eight additional nuclear receptors at 30 µM. It increases IL-17A production in Th17-polarized isolated human na ve CD4+ T cells when used at a concentration of 300 nM. 7β,27-dihydroxy Cholesterol (60 mg kg) increases IL-17A production in isolated mouse γδ T cells stimulated with 12-myristate 13-acetate and ionomycin .

Feglymycin is a 13-amino acid peptide originally isolated from Streptomyces that has antibacterial and antiviral activities. It is active against Gram-positive bacteria (MICs = 32-64 μg/ml) and inhibits HIV viral replication in H9 cells (IC50 = ~5 μM). Feglymycin is also active against clinical isolates of HIV-1 from clades A-D, A/E, and G (EC50s = 0.5-6.7 μM). It interacts with gp120 and inhibits HIV-1 NL4.3 binding to human soluble CD4 (EC50 = 4.4 μM) and to CD4+ SupT1 T cells by 74.5% when used at a concentration of 10.5 μM. Feglymycin inhibits the E. coli peptidoglycan biosynthesis enzymes MurA and MurC (Kis = 3.4 and 0.3 μM, respectively) in a noncompetitive manner.

Defensin HNP-3 is a peptide secreted by human polymorphonuclear leukocytes (PMNs) that has antimicrobial properties. It induces lysis of mammalian cells when used at a concentration of 25 μg/mL. It also inhibits growth of E. faecalis (ED50 = 100 nM) and clinical isolates of P. aeruginosa (MIC90 = 4 μM). HNP-3 binds to recombinant HIV-1 envelope glycoprotein (gp120) and human CD4 (Kds = 52.8 and 34.9 nM, respectively). It also binds to recombinant, immobilized human surfactant protein D (SP-D; Kd = 55.7 nM) and inhibits focus formation in Madin-Darby canine kidney (MDCK) cells infected with influenza A virus (IAV).

NY-ESO-1 (87-111) is a pan-MHC class II-restricted peptide interacting with various HLA-DR and HLA-DP4 molecules, inducing activation of CD4+ T cells with Th1-type and Th-2 Th0-type responses when presented with these molecules.

Indinavir sulfate (L735524 sulfate) is a HIV protease inhibitor.It inhibits the HIV-1 protease with an IC50 value of 0.41 nM and Ki value of 0.24 nM.

JNJ-61803534 is a potent, orally active RORγt inverse agonist, demonstrating anti-inflammatory activity through inhibition of IL-17A production in human CD4+ T cells under Th17 differentiation conditions, with an IC50 of 9.6 nM.

Flavipin, an aryl hydrocarbon receptor (Ahr) agonist, activates Ahr downstream gene expression in mouse CD4+ T cells and CD11b+ macrophages. This compound disrupts the stabilizing effect of Arid5a on the newly identified target mRNA, Il23a 3′UTR. Additionally, Flavipin demonstrates significant antioxidant properties, evidenced by its DPPH free radical scavenging capability with an IC50 value of 7.2 μM, and exhibits potent α-glucosidase inhibitory activity with an IC50 value of 33.8 μM.

Apelin-36(human) TFA, an endogenous agonist of the orphan G protein-coupled receptor APJ, exhibits a potent EC50 of 20 nM and high affinity (pIC5 50 = 8.61) for human APJ receptors in HEK 293 cells. It is involved in significant cardiovascular and metabolic activities. Furthermore, Apelin-36(human) TFA can inhibit the entry of certain HIV-1 and HIV-2 strains into NP2 CD4 cells expressing the APJ receptor. [1] [2] [3] [4]