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CD molecules
CD molecules
25
Medical
Post-Graduate
08/17/2009

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Term
CD
Definition
cluster of differentiation
Term
CD1
Definition
display of nonpeptide and glycoplipid antigens for T-cell responses
+ dendritic cells
+ bcells
+ Langerhan cells
+ thymocytes
+ monocytes
+ activated T cells
+ epithelial cells
Term
CD2
Definition
Adhesion molecule
signal transduction
earliest Tcell marker
+ Th
+ Tc
+ NK
Term
CD3
Definition
Signal transduction element of T-cell receptor
+ Th
+ Tc
Term
CD4
Definition
Adhesion molecule that binds to class II MHC molecules
signal transduction
+ Th
Term
CD5
Definition
unknown
+ Tc
+ NK
Term
CD8
Definition
Adhesion molecule that binds to class I MHC molecules
signal transduction
+ Tc
+ NK (variable)
Term
CD10
Definition
membrane-bound metallopeptidase responsible for cleaving a variety of inflammatory and vasoactive peptides
+ bcell precursors
+ Tcell precursors
+ bm stromal cells
+ neutrophils
+ monocytes
+ keratinocytes
Term
CD14
Definition
Receptor for endotoxin (LPS), activate monocytes or neutrophils to release cytokines (TNF) and up-regulate adhesion molecules when LPS is bound
binds peptidoglycan on gram-positive bacteria, Hsp60, ceramides, modified lipoproteins, and anionic phospholipids
soluble form reported to act as an acute phase protein and may regulate Tcell activation and act as Bcell mitogen
+ monocytes
+ macrophages
+ granulocytes
+ bcells
+ dendritic cells
+ hepatocytes
Term
CD16 (FcyRIII)
Definition
low-affinity receptor for Fc region of IgG
+ NK
Term
CD19
Definition
Part of bcell coreceptor with CD21 and CD81
signal transduction - regulates bcell development, activation and differentiation
+ fDC
+ Bcells
Term
CD20
Definition
ligation activates tyrosine kinase-dependent pathways and may have a role in B-cell proliferation and differentiation
regulates B-lymphocyte activation and proliferation via regulation of transmembrane Ca2+ channel subunit and cell-cycle progression
+ bcells
Term
CD21 (CR2)
Definition
Receptor for:
complement (C3d)
Epstein-Barr virus
+ B cell
Term
CD28
Definition
Receptor for costimulatory B7 molecule on antigen-presenting cells
+ Th
+ Tc
Term
CD32 (FcyRII)
Definition
Receptor for Fc region of IgG
+ Bcell
Term
CD34
Definition
cell-cell adhesion molecule
participates in inhibition of hem differentiation
+ lymphohematopoietic stem and progenitor cells
+ small-vessel endo cells
+ embryonic fibroblasts
Term
CD35 (CR1)
Definition
Receptor for complement (C3b)
+ bcell
Term
CD40
Definition
signal transduction
+ bcell
Term
CD45
Definition
signal transduction
+ bcell
+ Th
+ Tc
+ NK
Term
CD56
Definition
Adhesion molecule
+ NK
Term
CD80
Definition
binds CD28 and CD152
costimulation of Tcell activation with CD86 when bound to CD28
inhibits Tcell activation when bound with CD152
+ bcell (activated)
+ tcell (activated)
+ resting peripheral blood monocytes
+ dendritic cells
Term
CD86
Definition
major T-cell costim molecule, interacting with CD28 (stimulatory) and CD152/CTLA4 (inhibitory)
+ dendritic cells
+ bcells (memory)
+ germinal center bcells
+ monocytes
Term
CD95
Definition
mediation of apoptosis-inducing signals
+ bcells (activated)
+ tcells (activated)
+ monocytes
+ fibroblasts
+ neutrophils
Term
CD152
Definition
negative regulator of T-cell activation
+ tcells (activated)
Term
CD154
Definition
ligand for CD40, inducer of Bcell proliferation and activation, antibody class switching and germinal center formation
costim molecule and regulator of Th1 generation and fucntion
role in neg selection and peripheral tolerance
+ Tcells (CD4+)
+ basophils
+ platelets
+ monocytes
+ mast cells
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