General Information of Drug Therapeutic Target (DTT) (ID: TTCK85E)

DTT Name Immune costimulatory protein B7H4 (VTCN1)
Synonyms VTCN1; V-set domain-containing T-cell activation inhibitor 1; T-cell costimulatory molecule B7x; Protein B7S1; B7h.5
Gene Name VTCN1
DTT Type
Literature-reported target
[1]
BioChemical Class
Immunoglobulin
UniProt ID
VTCN1_HUMAN
TTD ID
T35423
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MASLGQILFWSIISIIIILAGAIALIIGFGISGRHSITVTTVASAGNIGEDGILSCTFEP
DIKLSDIVIQWLKEGVLGLVHEFKEGKDELSEQDEMFRGRTAVFADQVIVGNASLRLKNV
QLTDAGTYKCYIITSKGKGNANLEYKTGAFSMPEVNVDYNASSETLRCEAPRWFPQPTVV
WASQVDQGANFSEVSNTSFELNSENVTMKVVSVLYNVTINNTYSCMIENDIAKATGDIKV
TESEIKRRSHLQLLNSKASLCVSSFFAISWALLPLSPYLMLK
Function
Negatively regulates T-cell-mediated immune response byinhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. When expressed on the cell surface of tumor macrophages, plays an important role, together with regulatory T-cells (Treg), in the suppression of tumor- associated antigen-specific T-cell immunity. Involved in promoting epithelial cell transformation.
KEGG Pathway
Cell adhesion molecules (hsa04514 )

Molecular Interaction Atlas (MIA) of This DTT

Molecular Interaction Atlas (MIA) Jump to Detail Molecular Interaction Atlas of This DTT
2 Clinical Trial Drug(s) Targeting This DTT
Drug Name Drug ID Indication ICD 11 Highest Status REF
AZD8205 DMXKH0S Aggressive cancer 2A00-2F9Z Phase 2 [2]
PF-07260437 DMU7LYP Breast cancer 2C60-2C65 Phase 1 [3]
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References

1 B7-H4 as a potential target for immunotherapy for gynecologic cancers: a closer look. Gynecol Oncol. 2014 Jul;134(1):181-189.
2 Design and Preclinical Evaluation of a Novel B7-H4-Directed Antibody-Drug Conjugate, AZD8205, Alone and in Combination with the PARP1-Selective Inhibitor AZD5305. Clin Cancer Res. 2023 Mar 14;29(6):1086-1101.
3 ClinicalTrials.gov (NCT05067972) A PHASE 1 DOSE ESCALATION AND EXPANSION STUDY TO EVALUATE THE SAFETY, TOLERABILITY, PHARMACOKINETIC, PHARMACODYNAMIC, AND ANTITUMOR ACTIVITY OF PF-07260437 IN ADVANCED OR METASTATIC SOLID TUMORS. U.S.National Institutes of Health.