Target intelligence / Profile preview

Major Histocompatibility Complex (MHC)

Target
MHC
Molecular classification
Cell surface glycoprotein
01

Overview

The major histocompatibility complex (MHC) is a large genomic region encoding cell surface proteins essential for the adaptive immune system. MHC molecules, also known as human leukocyte antigens (HLA) in humans, present peptide antigens to T cells, mediating immune recognition and response. The MHC region is highly polymorphic, contributing to diverse pathogen recognition. It is critical for tissue transplantation compatibility and is implicated in susceptibility/resistance to autoimmune diseases.

Other names
Human Leukocyte Antigen (HLA) system
02

Mechanism of action

Immunosuppression; modulation of T-cell activation

03

Biological functions

Antigen presentationImmune surveillanceT-cell activationT-cell tolerance
04

Disease associations

Autoimmune diseasesTransplant rejectionInfectious diseasesCancer
05

Safety considerations

Increased risk of infection (due to immunosuppression)Increased risk of certain cancers (due to immunosuppression)Graft-versus-host disease (GVHD)
06

Interacting drugs

Immunosuppressants (e.g., Cyclosporine, Tacrolimus)

1 more in the full profile.

07

Biomarkers

HLA allele typing (for transplant compatibility)MHC expression levels (in certain cancers)

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