2. Signaling Pathways
  3. Cytoskeleton
  4. Claudin

Claudin

Claudins are a family of transmembrane proteins, are the most important components of the tight junctions (zonulae occludentes). They have four transmembrane domains, with the N-terminus and the C-terminus in the cytoplasm. Claudin expression and functions are regulated at multiple levels and by diverse mechanisms. Delocalization of claudins from membrane appears to be common among the transformed cells. Constitutive activation of Ras or Ras-mediated signaling pathway/s is one of the initial steps during tumorigenesis that is causatively associated with neoplastic transformation. Importantly, claudins are expressed in the epithelial cells and in a tissue-specific manner and changes among claudin family members in cancer follow tissue-specific and sometimes contrasting pattern. Thus, claudin family of proteins may hold the potential cue to the heterogeneity among the tumors of epithelial origin and beyond being useful markers may also help provide therapeutic opportunities suited for specific cancer type[1].

Claudin Related Products (25):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-113283
    Homogentisic acid
    		Inhibitor 99.68%
    Homogentisic acid is an orally active, blood-brain barrier-permeable amyloidogenic compound that functions as both an amyloid component and a pigment precursor. Accumulation of homogentisic acid downregulates tight junction proteins (such as claudin-5, occludin, ZO-1) and impairs blood-brain barrier integrity. Homogentisic acid and its oxidation product benzoquinone acetic acid not only induce the aggregation and fibrosis of multiple proteins (such as Aβ1-42, α-synuclein, SAA, Transthyretin (TTR), atrial natriuretic peptide), but also trigger oxidative stress, damage to the Wnt/β-catenin pathway, and neurotoxicity, leading to ochronosis pigment deposition and synaptic dysfunction. At specific concentrations, homogentisic acid exerts no cytotoxicity or genotoxicity on human peripheral blood lymphocytes, and even counteracts the genotoxicity induced by Irinotecan (HY-16562). Homogentisic acid serves as an important tool molecule for investigating the mechanisms of diseases including ochronosis, secondary amyloidosis, Alzheimer's disease, and colorectal cancer.
    Homogentisic acid
  • HY-N2468
    Xylobiose
    		Inhibitor 98.0%
    Xylobiose (1,4-β-D-Xylobiose; 1,4-D-Xylobiose) is an orally active Claudin 2/CLDN2 inhibitor and HSP27 inducer. Xylobiose works by regulating intestinal barrier function and glucose and lipid metabolism-related signaling pathways. Xylobiose inhibits CLDN2 expression to reduce intestinal permeability, induces HSP27 to enhance cell protection, and regulates the miR-122a/miR-33a axis to inhibit liver lipid synthesis and improve insulin resistance. Xylobiose can strengthen intestinal barrier integrity, reduce blood sugar and blood lipid levels, and reduce oxidative stress and inflammatory response. Xylobiose can be used in the study of type 2 diabetes and metabolic syndrome.
    Xylobiose
  • HY-P990045
    Lixudebart
    		Inhibitor 98.88%
    Lixudebart (ALE.F02) is a humanized immunoglobulin G1-kappa, anti-CLDN1 monoclonal antibody. Lixudebart disrupts CLDN1 interactions with CD44 and MMP14, reduces renal macrophage infiltration, epithelial activation, and urinary albumin-to-creatinine ratio, and attenuates glomerulosclerosis. Lixudebart can be used for the research of focal segmental glomerulosclerosis.
    Lixudebart
  • HY-W014507
    9,10-Phenanthrenequinone
    		Inhibitor 99.95%
    9,10-Phenanthrenequinone is an inhibitor of claudin-5/CLDN5 that induces apoptosis via a NO synthase/ROS-dependent mechanism. 9,10-Phenanthrenequinone also promotes endothelial barrier dysfunction by promoting caspase activation and DNA fragmentation, and reducing CLDN5 expression and proteasomal proteolysis.
    9,10-Phenanthrenequinone
  • HY-P991564
    Arcotatug
    		Inhibitor
    Arcotatug (IBI-343 antibody) is a CLDN18.2 targeting humanized monoclonal antibody. Arcotatug can be used for synthesis of ADCs.
    Arcotatug
  • HY-P992219
    Anti-Claudin 1 Antibody
    Anti-Claudin 1 Antibody is a monoclonal antibody targeting CLDN1/CLD1/SEMP1. It can be used in ELISA, FACS, and functional assays. For isotype controls of Anti-Claudin 1 Antibody, please refer to Human IgG4 (S228P) kappa, Isotype Control (HY-P99003).
    Anti-Claudin 1 Antibody
  • HY-P992316
    ATG-022 Antibody
    		Modulator
    ATG-022 Antibody is a humanized monoclonal antibody targeting Claudin 18.2 (CLDN 18.2). ATG-022 Antibody binds with VcMMAE (HY-15575) to form an Antibody-Drug Conjugate (ADC). ATG-022 Antibody can be used for the research of advanced/metastatic solid tumors and gastric cancer.
    ATG-022 Antibody
  • HY-P11785
    Cpe30 MT2
    		Ligand
    Cpe30 MT2 is a short peptide that binds tightly junction protein Claudin‑4 (CLDN4) with high affinity, with a Kd value of 1.97 nM. Cpe30 MT2 can be used for the synthesis of PET molecular imaging probes targeting pancreatic cancer.
    Cpe30 MT2
  • HY-P990742
    Givastomig
    		Inhibitor 98.556%
    Givastomig (ABL111, TJ033721) is a bispecific antibody (BsAb) inhibitor. Givastomig can specifically binds to Claudin18.2 (CLDN 18.2) on the surface of cancer cells and 4-1BB (CD137, TNFRSF9) on the surface of activated T cells and natural killer (NK) cells. Givastomig is engineered to contain a single Fc-domain mutation (asparagine to alanine) to eliminate Fc-effector function. Givastomig-bound cell lines expressing a range of CLDN18.2 levels with high affinity and induced 4-1BB activation only in the context of CLDN18.2 binding. Givastomig can be used for the study of colon carcinoma.
    Givastomig
  • HY-P991143
    Ixotatug
    		Ligand 99%
    Ixotatug is a monoclonal antibody targeting human CLDN6 (claudin-6). Ixotatug specifically binds to CLDN6, interfering with relevant signaling pathways in tumor cells and exerting antitumor activity. Ixotatug is promising for research of cancers.
    Ixotatug
  • HY-171152A
    NSC 357754 dihydrochloride
    		Inhibitor 98.01%
    NSC 357754 dihydrochloride is an inhibitor of Claudin. NSC 357754 dihydrochloride can increase the transepithelial electrical resistance of cells and reduce the permeability of specific cations. NSC 357754 dihydrochloride can be used in the research of intestinal diseases mediated by Claudin-2 and/or Claudin-15.
    NSC 357754 dihydrochloride
  • HY-P991200
    OM-7D3-B3
    		Antagonist
    OM-7D3-B3 is an antibody-based antiviral agent targeting the tight junction protein CLDN1 (Kd=4 nM). By binding to the first extracellular domain of CLDN1, OM-7D3-B3 disrupts the formation of the CLDN1-CD81 co-receptor complex, thereby effectively inhibiting the entry of hepatitis C virus (HCV). OM-7D3-B3 not only prevents de novo and chronic HCV infections in humanized liver chimeric mice and uPA-SCID mice transplanted with human livers, but also exhibits favorable safety with no toxic effects observed. OM-7D3-B3 serves as a critical tool for research on HCV infection mechanisms and antiviral drug development.
    OM-7D3-B3
  • HY-P10886
    Zifogaptide
    		98.97%
    Zifogaptide is a gap junction protein channel regulator. Zifogaptide mimics the PDZ-binding motif at the C-terminal of Claudin C and competitively interferes with the interaction between Claudin–TJP1 (ZO-1) scaffold. Zifogaptide can promote epithelial cell migration, reduce scar formation, and accelerate wound healing. Zifogaptide can be used for radiation dermatitis, skin injuries, etc.
    Zifogaptide
  • HY-N7635
    Oleanolic acid 28-O-β-D-glucopyranoside
    		Activator 99.42%
    Oleanolic acid 28-O-β-D-glucopyranoside (β-D-Glucopyranosyl oleanolate) is an orally active pentacyclic triterpenoid compound. Oleanolic acid 28-O-β-D-glucopyranoside has anti-inflammatory effects. In ulcerative colitis models, Oleanolic acid 28-O-β-D-glucopyranoside can inhibit the inflammatory response, enhance the intestinal epithelial barrier function, and modulate the gut microbiota. Its mechanism of action is related to the PI3K-AKT and MAPK signaling pathways. Oleanolic acid 28-O-β-D-glucopyranoside can be used in the research of diseases such as colitis.
    Oleanolic acid 28-O-β-D-glucopyranoside
  • HY-171152
    NSC 357754
    		Inhibitor
    NSC 357754 is an inhibitor of Claudin. NSC 357754 can increase the transepithelial electrical resistance of cells and reduce the permeability of specific cations. NSC 357754 can be used in the research of intestinal diseases mediated by Claudin-2 and/or Claudin-15.
    NSC 357754
  • HY-P991687
    Gaspantatug
    		Inhibitor
    Gaspantatug is a humanized IgG1κ antibody targeting CLDN18.2. The corresponding isotype control is: Human IgG1 kappa, Isotype Control (HY-P99001).
    Gaspantatug
  • HY-P991679
    Elatatug
    		Inhibitor
    Elatatug is an anti-CLDN18 (claudin 18) IgG1κ type humanized antibody with antineoplastic activity. The recommed isotype control is Human IgG1 kappa, Isotype Control (HY-P99001).
    Elatatug
  • HY-P991140
    Garetatug
    		Ligand
    Garetatug is a humanized monoclonal antibody targeting human CLDN18 (claudin-18). Garetatug specifically binds to CLDN18, interfering with relevant cell signaling pathways and exerting antitumor activity.
    Garetatug
  • HY-P991163
    Tixentamig
    		Inhibitor ≥99.0%
    Tixentamig is a bispecific monoclonal antibody targeting human CD3 ε and CLDN18 (claudin 18). Tixentamig is promising for research of cancers.
    Tixentamig
  • HY-P991681
    Emaretamig
    		Inhibitor
    Emaretamig is a humanized IgG1κ monoclonal antibody inhibitor targeting CLDN18 and CD3E. Abdakibart can be used for cancers like gastric and pancreatic cancer research.
    Emaretamig