MHC

Photolumazine III is an MR1 (MHC class I-related molecule 1) antigen, which plays a crucial role in the immune response by presenting antigenic metabolites to T cells. This compound exhibits biological activity related to the activation of MR1-restricted T cell responses, thus serving as a valuable tool for studying immune mechanisms and developing immunotherapies. Research applications include the investigation of microbial and tumor-associated antigens, as well as the modulation of immune responses in various disease models.

TYVPANASL is a MHC I-binding CD8 T cell epitope derived from the HER2/neu protein. This nine-amino-acid peptide plays a crucial role in stimulating CD8 T cell responses, making it valuable in immunological studies and vaccine development. TYVPANASL can be utilized in the preparation of J-LEAPS vaccines, contributing to cancer immunotherapy research.

InsB (9-23) is an MHC class II-restricted peptide derived from the insulin B-chain, encompassing amino acid residues 9-23. This peptide is a critical antigen for HLA-DQ8, facilitating T cell recognition and activation, leading to the release of IFN-γ and various cytokines. InsB (9-23) has been shown to activate CD4 T cells associated with the pathogenesis of type 1 diabetes and autoimmune diabetes. It serves as an essential tool for research investigating the immunological mechanisms underlying these diseases.

SA-15-P is a potent inhibitor of the LAG-3/MHCII and LAG-3/FGL1 protein-protein interactions, with IC50 values of 4.21 μM and 6.52 μM, respectively. By disrupting these interactions, SA-15-P serves as a valuable tool in immunotherapy research, providing insights into immune regulation and the potential enhancement of anti-tumor responses. Its application facilitates the exploration of therapeutic strategies targeting LAG-3 in various disease contexts.

Z3071585108 is a small molecule inhibitor of the LAG-3 D1 domain, exhibiting Kd values of 59.2 μM and 56.1 μM through MST-TRIC channel and spectral shift detection, respectively. This compound partially inhibits the interaction between LAG-3 and MHC class II molecules, with an EC₅₀ value of 42.9 μM. Z3071585108 is valuable for research on small molecule immunotherapies targeting the LAG-3 pathway, contributing to the understanding of immune modulation in various diseases.

OVA-T4 Peptide (SIITFEKL) is a bioactive peptide variant of the ovalbumin epitope (OVA (257-264)), known for its binding to H-2Kb MHC class I molecules. This peptide exhibits comparable binding strength to H-2Kb but demonstrates significantly reduced affinity for the OT-I TCR. OVA-T4 Peptide is useful in research focused on T cell responses and MHC-TCR interactions, making it valuable for the study of immunological mechanisms and peptide-MHC complex dynamics.

OVA peptide is a class I (Kb)-restricted peptide epitope derived from ovalbumin, associated with the major histocompatibility complex (MHC) molecule H-2Kb in mice. This peptide plays a crucial role in immune response studies, particularly in allergy research, where it serves as a model antigen. Its ability to elicit specific T cell responses makes OVA peptide a valuable tool for understanding immune mechanisms and developing therapeutic strategies in allergy and immunology.

Gp100 (25-33), human is a polypeptide fragment comprising amino acids 25-33 of the human melanoma antigen. This 9-amino acid epitope is restricted by MHC class I H-2Db and elicits a specific T cell response due to its immunogenic properties. Gp100 (25-33), human is valuable for cancer research, particularly in studies focused on melanoma and T cell-mediated immune responses.

CFP10 (71–85) is a bioactive peptide that stimulates the production of interferon-gamma (IFN-γ) and enhances cytotoxic T lymphocyte (CTL) activity in both CD4+ and CD8+ T cells. It is particularly effective in individuals expressing various MHC class II and class I molecules. This peptide is valuable for research applications focused on immune response modulation and T cell activation.

CLIP (86-100) is the amino acid fragment of the class II-associated invariant chain peptide, comprising residues 86 to 100. This small self-peptide is a cleavage product that resides within the HLA-II antigen binding groove, playing a pivotal role in the assembly and transport of MHC class II alphabetaIi complexes. It interacts with the class II peptide-binding site, making it essential for understanding MHC class II functionality in immunological research and potential therapeutic applications.

Cardiogenol C is a diaminopyrimidine compound that induces the differentiation of MHC- (myosin heavy chain) positive cardiomyocytes from embryonic stem cells with an EC50 value of 0.1 uM. Cardiogenol C upregulates cardiac markers and induces cardiac functional properties in lineage-committed progenitor cells.

AI-10-49 is a protein-protein interaction inhibitor that selectively binds to CBFβ-SMMHC and disrupts its binding to RUNX1 with a FRET IC50 of 0.26 uM,

ZLDI-8 is an inhibitor of the metalloproteinase enzyme ADAM-17, targeting the cleavage of Notch protein. This compound effectively reduces the expression of proteins associated with pro-survival pathways and epithelial-mesenchymal transition (EMT). Additionally, ZLDI-8 functions as a competitive and irreversible inhibitor of the tyrosine phosphatase Lyp, exhibiting an IC50 of 31.6 μM and a Ki of 26.22 μM. Notably, ZLDI-8 demonstrates potent growth inhibition of MHCC97-H cells with an IC50 of 5.32 μM, making it valuable for research into cellular signaling and cancer biology.

Tkip is a selective inhibitor of JAK2, targeting the JAK2 autophosphorylation site. It effectively inhibits JAK2 autophosphorylation and the phosphorylation of the IFN-γ receptor subunit IFNGR-1, thereby reducing the antiviral effects of IFN-γ and downregulating MHC Class I molecule expression. Tkip is a valuable tool for investigating the IFN-γ signaling pathway and its implications in various biological processes.

SBP-5147 is a potent inhibitor of ULK1 and ULK2, exhibiting an IC50 of 2 nM for ULK1 and 53 nM for ULK2. This compound effectively inhibits the phosphorylation of Beclin-1 and Vps34, reduces autophagic flux, and downregulates the expression of key autophagy-related proteins ATG13 and ATG101. Additionally, SBP-5147 enhances MHC-I expression, induces caspase-dependent apoptosis, and decreases the viability of non-small cell lung cancer cells. Its mechanism of action makes SBP-5147 a valuable tool for research in non-small cell lung cancer and autophagy modulation.

Z-Val-Val-Nle-diazomethylketone is a selective inhibitor of cathepsin S (CATS). This compound effectively reduces the IFNg-induced upregulation of MHCII molecules, specifically HLA-DR and Ii-p33/35, while promoting an increase in the Ii-p10 protein level. It is valuable for research into dermatological conditions such as psoriasis, atopic dermatitis, and actinic keratosis.

AS2677131 is a potent and orally active inhibitor of PIKfyve, targeting the PIKfyve-c-Rel signaling pathway. It effectively inhibits the production of pro-inflammatory cytokines, including IL-12p40, IL-6, and IL-1β, by selectively blocking the DNA-binding activity of c-Rel to their respective promoters. Additionally, AS2677131 reduces MHC class II expression on B cells. This compound is valuable for research in the fields of inflammation and immunology, particularly in studies related to arthritis.

EGFRvIII peptide is a synthetic epitope derived from the EGFRvIII variant, specifically designed to bind to MHC I molecules. This peptide is known to induce apoptosis and elicit targeted immune responses against glioblastoma, particularly when used in conjunction with Flagellin B. It is a valuable tool for research in cancer immunotherapy and the development of personalized medicine approaches for glioblastoma treatment.

Pam2Cys is a TLR2 agonist that acts as an immunostimulant by binding to TLR2, activating dendritic cells, and initiating the TLR2-dependent NF-κB signaling pathway. This compound promotes dendritic cell maturation through the upregulation of MHC II molecules, enhances innate immune signaling, and drives pro-inflammatory responses, including the release of IL-12 and other cytokines. Additionally, Pam2Cys serves as a lipid moiety in synthetic lipopeptide vaccines, boosting immunogenicity, while selectively inducing pro-inflammatory macrophage activation. Research applications include studies on tuberculosis and influenza A virus infections, as it effectively recruits immune cells and mitigates infection-related symptoms without compromising adaptive immunity.

Ste2Cys is a diacylglycerol cysteine-type lipid molecule that serves as a ligand for Toll-like Receptor 2 (TLR2). It activates the NF-κB signaling pathway, leading to the upregulation of MHC II class molecules on the surface of mouse bone marrow-derived dendritic cells. This compound is valuable for research into the development of immunologic vaccines and enhancing immune responses.

Adrixetinib is a potent triple inhibitor targeting CSF1R, Mer, and Axl, with Kd values of 8.7 nM, 0.8 nM, and 0.3 nM respectively. This compound serves as an effective immune modulator by remodeling the tumor microenvironment, enhancing the presence of M1 macrophages and CD8⁺ T cells while reducing M2 macrophages and myeloid-derived suppressor cells (MDSCs). Additionally, Adrixetinib increases the expression of MHC class I and E-cadherin in tumor cells, demonstrating significant antitumor efficacy in syngeneic mouse models. It is relevant for research involving breast cancer, renal adenocarcinoma, colon carcinoma, and melanoma.

p60 (217–225) is a subdominant epitope derived from Listeria monocytogenes, recognized by H-2Kd MHC class I molecules. This peptide plays a crucial role in the immune response to Listeria infection, facilitating T cell recognition and activation. p60 (217–225) is essential for studying antigen presentation and T cell immunity in infectious disease research and vaccine development.

ERAP1 modulator-2 is a potent inhibitor of the enzyme ERAP1, exhibiting an IC50 value of less than 100 nM. This compound effectively modulates the activity of ERAP1, influencing peptide trimming and presentation in the context of antigen processing. It is valuable for research applications focused on immune regulation, inflammation, and the modulation of major histocompatibility complex (MHC) class I-mediated responses.

DMHCA is a potent and selective liver X receptor (LXR) agonist that specifically activates the cholesterol efflux pathway while avoiding the stimulation of triglyceride synthesis. This compound exhibits anti-inflammatory properties, making it a valuable tool for research in cholesterol homeostasis and diabetes. DMHCA's selective mechanism provides insight into the role of LXR modulation in metabolic disorders.

N-Octanoyl dopamine is a graft protective agent that enhances contractile function in heart transplant recipients, particularly those from brain-dead donors. This compound functions by inhibiting cytokine production in activated T-cells, along with reducing MHC class II expression and adhesion molecules in interferon-gamma-stimulated endothelial cells. Its unique properties support research into transplant immunology and cardiac preservation.

NC1153 is a Mannich base that targets and inhibits IL-2-induced JAK3 activation, subsequently preventing the activation of downstream substrates such as STAT5a/b. This compound has been shown to effectively extend the survival of kidney transplants in both MHC and non-MHC mismatched rat models. Additionally, NC1153 provides comprehensive protection against toxicity for recipients when used in conjunction with cyclosporine A (CsA), demonstrating a synergistic effect to enhance graft survival while avoiding nephrotoxicity, myelotoxicity, and lipotoxicity.

Immunoproteasome Activator 1 is a selective activator of the immunoproteasome that enhances the presentation of MHC-I-bound peptides by over 100-fold. This compound functions by binding to the proteasome structural subunit PSMA1, facilitating the association of the proteasome activator PA28α/β (PSME1/PSME2) with immunoproteasomes. Its significant biological activity makes it valuable for research focused on immune response modulation and antigen processing.

Tyrosinase-related Protein 2 (TRP-2) (181-188) is a peptide derived from tyrosinase-related protein 2, corresponding to residues 181-188. This peptide contains the primary reactive epitope recognized by anti-B16 cytotoxic T lymphocytes (CTLs) and is designed to conform to the MHC class I H2-Kb binding motif. TRP-2 (181-188) is essential for studies in immunology and cancer research, particularly in the context of melanoma and anti-tumor immune responses.

1-Adamantaneethanol is a hapten that modifies peptide binding to Major Histocompatibility Complex Class II (MHC II) molecules. This compound is utilized in immunological research to study T cell activation and the role of haptens in immune response modulation. Its ability to alter peptide presentation makes it a valuable tool for investigating MHC-related pathways and autoimmune conditions.

1,10-Decanediol-d20 is the deuterated version of 1,10-decanediol, a diol compound known for its role in the formation of polymeric microparticles (paKG MPs) upon reaction with α-ketoglutarate (aKG). These microparticles facilitate the sustained release of aKG, promoting immunosuppressive responses by modulating dendritic cell metabolism, including reduced glycolysis and mitochondrial respiration. This modulation impacts the expression of key surface markers such as MHC-II and CD86 and influences the frequency of regulatory T cells and T-helper subsets in vitro. 1,10-Decanediol-d20 serves as a critical tool in immunometabolism research and is also useful as a surfactant or stabilizer in nanomaterial synthesis.

Pristane-d40 is a deuterium-labeled derivative of Pristane, which is a naturally occurring hydrocarbon found in various plants and marine organisms. This stable isotope is utilized in biological research to trace metabolic pathways and investigate lipid dynamics. Pristane has been shown to induce MHC class II-restricted, arthritogenic T cells in rat models, making this compound valuable for studies related to autoimmunity and immunological response.

Furathiocarb is a carbamate pro-insecticide that primarily targets insect nervous systems. It exhibits significant biological activity by inducing the proliferation of MHC II-positive B cells in auricular lymph nodes and promoting the production of Th1 cytokines, including IL-2, TNF-γ, and IFN-γ. Furathiocarb has applications in contact allergy research, demonstrating no respiratory allergy induction in mice. After dermal absorption in isolated rats, it is fully metabolized to carbofuran, with skin permeation rates for emulsifiable concentrate and wettable powder formulations exceeding those of the parent compound.

Pristane is a naturally occurring hydrocarbon oil that functions as an immunological adjuvant. It is used to induce MHC class II-restricted, arthritogenic T cells in experimental models, particularly in rat studies. Pristane's unique properties make it valuable for research applications focused on immune response modulation and the study of autoimmune conditions.

M30 peptide is an MHC class II epitope antigen that plays a crucial role in initiating T cell responses. This peptide is particularly valuable in cancer nanovaccine research, facilitating the development of targeted immunotherapies. By enhancing antigen presentation, M30 peptide supports investigations into adaptive immune responses against tumors.

M27 peptide is an MHC class I epitope antigen that plays a crucial role in immune response modulation. Its primary application lies in cancer nanovaccine research, facilitating the development of targeted immunotherapies. By presenting specific antigenic sequences, M27 peptide aids in the identification and activation of T lymphocytes, contributing to enhanced anti-tumor immune responses.

Glatiramer acetate is a synthetic analogue of myelin basic protein that functions primarily as an immune modulator for the treatment of multiple sclerosis. Its mechanism involves inhibiting experimental autoimmune encephalomyelitis (EAE) by competing with myelin antigens for binding to MHC molecules, which subsequently modulates T cell response. Additionally, glatiramer acetate promotes the induction of T helper 2 (Th2) cells, which migrate to the central nervous system and facilitate localized immunosuppression. This compound serves as a valuable tool for research into autoimmune disorders and therapeutics for multiple sclerosis.

Hericenone A is an isoindoline compound derived from the fruiting bodies of Hericium erinaceum. Exhibiting potent anticancer activity, it effectively inhibits the growth of SMMC-7221 and MHCC-97H cell lines at a concentration of 20 μg/mL. This compound is of particular interest in cancer research for its potential therapeutic applications.

AdBeSA is a hapten that modulates peptide binding to MHC class II molecules. This structural analog can alter immune responses by impacting antigen presentation. Its primary application is in the study of T-cell activation and the design of peptide-based vaccines. AdBeSA serves as an important tool for researchers investigating immune system interactions and therapeutic strategies targeting autoimmune diseases.

J10-1 is a hapten that enhances peptide exchange among various DR alleles, including DR1, DR2, and DR4 (specifically DRB1*0401). This compound facilitates the binding of peptides to MHC class II molecules, making it a valuable tool for investigating immune regulation and responses. Its utility in research applications can aid in the understanding of T cell activation and autoimmune diseases.