ADs	autoimmune diseases
CTLA-4	cytotoxic T-lymphocyte antigen 4
APCs	antigen-presenting cells
MHC	major histocompatibility complex
flCTLA-4	full-length cytotoxic T-lymphocyte antigen 4 mRNA
sCTLA-4	soluble cytotoxic T-lymphocyte antigen 4
liCTLA-4	ligand-independent cytotoxic T-lymphocyte antigen 4
NF-AT	nuclear factor of activated T cells
cAMP	cyclic adenosine monophosphate
TGN	trans-Golgi network
GTPases	guanosine triphosphatases
ARF-1	adenosine diphosphate ribosylation factor-1
PLD	phospholipase D
CAP-1	clathrin adaptor protein-1
CAP-2	clathrin adaptor protein-2
IL-2	interleukin 2
TCR	T-cell antigen receptor
Bcl-Xl	apoptosis regulator Bcl-X
LAT	linker for activation of T cells
NF-κB	transcription factor nuclear factor B
Treg	regulatory T cell
DCs	dendritic cells
GRB2	growth factor receptor bound protein
SOS	Son-of-Sevenless
SYP	tyrosine phosphatase synaptophysin
CXCR4	C-X-C chemokine receptor type 4
PIP3	phosphatidylinositol (3
4	5)-trisphosphates
PH	pleckstrin homology
PDK1	PH domain kinase 1
mTORC2	rapamycin complex 2
PP2A	serine/threonine phosphatase PP2A
SHIP2	tyrosine phosphatase SHIP2
BAD	BL2-associated agonist of cell death
cdCTLA 4	cytoplasmic domain of CTLA-4
Tfr	follicular regulatory T
Tfh	follicular helper T
GC	germinal center
RA	rheumatoid arthritis
RF	rheumatic factor
ACPA	anti-citrullinated protein antibodies
Treg	regulatory T cell
Tcon	conventional T
IDO	indoleamine 2, 3-dioxygenase
SLE	lupus erythematosus
MS	multiple sclerosis
CNS	central nervous system
IFN-γ	interferon-γ
AP-	cell-penetrating peptide (AP)-conjugated
ctCTLA-4	CTLA-4 cytoplasmic domain
T1D	type 1 diabetes
NOD	non-obese diabetes
CRP	C-reactive protein
AITD	autoimmune thyroid disease
HT	Hashimoto's thyroiditis
EHT	experimental Hashimoto's thyroiditis
MG	myasthenia gravis
NMJ	neuromuscular junction
AChR	acetylcholine receptor
MuSK	muscle-specific kinase
AChR	anti-acetylcholine receptor
CTLA-4Ig	CTLA-4 immunoglobulin