| AA |
arachidonic acid |
AA is an unsaturated fatty acid present in phospholipid membranes. Upon release, AA and its metabolites have been shown to activate TRP channels. |
| Ach |
acetylcholine |
Ach is the primary neurotransmitter released by motor neurons to activate muscles; Ach is also a neurotransmitter employed by the autonomic and sensory nervous systems. |
| Artn |
artemin |
Growth factor expressed by neurons and some cancer cells |
| BCC |
basal cell carcinoma |
Abnormal uncontrolled growths or lesions originating from basal cells of the skin epidermis |
| BDNF |
brain-derived neurotrophic growth factor |
Growth factor expressed by neurons and some cancer cells |
| Cancer |
|
Disease in which abnormal cells divide without control; can invade other tissues (e.g. blood, lymph, nerves) |
| CG |
celiac ganglion |
Abdominal ganglion that contains axons of sensory neurons and cell bodies of sympathetic neurons that innervate the stomach and pancreas |
| CNS |
central nervous system |
Complex of nerve tissues comprised of the brain and spinal cord |
| CGRP |
calcitonin gene related peptide |
Peptide released by sensory neurons; functions as a vasodilator and contributes to neurogenic inflammation |
| DRG |
dorsal root ganglia |
Clusters of the cell bodies of spinal sensory neurons |
| ET-R |
endothelin receptor |
G-protein coupled receptor that elevates intracellular calcium and modulates vasoconstriction |
| GDNF |
glial cell-line derived growth factor |
Growth factor expressed by neurons and some cancer cells |
| Ganglia |
|
Cluster of nerve cell bodies |
| GEMM |
genetically engineered mouse model |
Mice with genomes that have been engineered to model aspects of human diseases |
| GFRα1 |
GDNF receptor alpha 1 |
GPI-linked receptor that binds GDNF and Nrtn; mediates activation of the tyrosine receptor kinase RET |
| GFRα2 |
GDNF receptor alpha 2 |
GPI-linked receptor that binds Nrtn; mediates activation of the tyrosine receptor kinase RET; expressed by neurons and cancer cells |
| GFRα3 |
GDNF receptor alpha 3 |
GPI-linked receptor that binds Artn; mediates activation of the tyrosine receptor kinase RET; expressed by neurons and cancer cells |
| IL-6 |
Interleukin-6 |
Pro-inflammatory cytokine |
| IMG |
inferior mesenteric ganglion |
Prevertebral ganglia located where the inferior mesenteric artery branches from the abdominal aorta. Contains the sympathetic neurons that innervate the prostate |
| mAchR |
muscarinic acetylcholine receptor |
G-protein coupled receptor activated by acetylcholine; classically regulates signaling in the autonomic nervous system |
| metastasis |
|
Refers to the development of malignant growths at sites distant from the primary site of cancer |
| nAchR |
nicotinic acetylcholine receptor |
Ion channel expressed by neurons and some cancer cells; implicated in motor function |
| NE |
norepinephrine |
Stress hormone and neurotransmitter involved in homeostasis of bodily functions (e.g. vascular, glucose, gastrointestinal) |
| NE-R |
norepinephrine receptor |
Adrenergic G-protein coupled receptors that bind by NE; activation typically stimulates skeletal muscle (e.g. “flight or fight” response). |
| neurogenic inflammation |
|
Neuronal release of small molecules that can contribute to inflammation, e.g., substance P, calcitonin gene related peptide, glutamate, cholecystokinin and ATP. Effects can be on blood vessels, other neurons and immune cells to establish inflammatory milieu. |
| neuropathic pain |
|
Pain that results from direct damage to the nervous system |
| NG |
nodose ganglia |
Ganglia located anterior to the internal jugular vein that contain sensory and parasympathetic cell bodies of the vagus nerve |
| NGF |
nerve growth factor |
Growth factor expressed by neurons and some cancer cells |
| NK-R |
neurokinin receptor |
G-protein coupled receptor involved in nociception |
| NPY |
neuropeptide Y |
Peptide released from sensory neurons that functions as a vasoconstrictor |
| Nrtn |
neurturin |
Growth factor expressed by neurons and some cancer cells |
| P2X |
ionotropic purinergic receptor |
Ion channel activated by ATP; implicated in modulating nociception, cardiac function, vascular tone and micturition |
| P2Y |
metabotropic purinergic receptor |
G-protein coupled receptor activated by ATP and its metabolites; implicated in multiple cellular functions including nociception, cytokine secretion, proliferation and apoptosis |
| pancreatitis |
|
A complex inflammatory disease with multiple etiologies including both genetic and environmental (internal and external) components. Resulting pathology has a common histological presentation including edema, vasodilation, invasion of immune cells and varying degrees of breakdown in the barriers of the different tissue compartments within the pancreas |
| PanIN |
pancreatic intraepithelial neoplasia |
Precancerous lesions in the ductal structures of the pancreas composed of columnar or cuboidal cells |
| PAR2 |
protease activated receptor 2 |
G-protein coupled receptor that modulates inflammatory responses |
| PDAC |
pancreatic ductal adenocarcinoma |
Most common form of pancreas cancer; tumor derived from epithelial cells that line the pancreatic ducts and ductules |
| PG |
paravertebral ganglia |
Ganglia alongside the spinal column that contain sympathetic neuron cell bodies |
| PNI |
perineural invasion |
Refers to when cancer cells invade the nerves; cells may invade all layers (endoneurium, perinerium, and/or epineurium) within the nerve |
| PNS |
peripheral nervous system |
Consists of nerves and ganglia outside the brain and spinal cord; primary subdivisions include somatosensory and autonomic nervous systems. |
| SN |
splanchnic nerve |
Visceral nerve of autonomic and sensory fibers connecting the spinal cord and abdominal organs |
| SP |
substance P |
Peptide released from sensory neurons; can act as a modulator of neurogenic inflammation |
| TrkA |
tropomyosin receptor kinase A |
Tyrosine receptor kinase activated by NGF; expressed by neurons and cancer cells |
| TrkB |
tropomyosin receptor kinase B |
Tyrosine receptor kinase activated by BDNF; expressed by neurons and cancer cells |
| TRP |
transient receptor potential family |
Family of ionotropic receptors (ion channels) expressed on neurons; can influence nociceptive tone |
| VN |
vagus nerve |
Parasympathetic and sensory fibers arising from neurons of the nodose ganglion; have peripheral synapses on intrinsic neurons within organs |
| xenograft |
|
Transplantation of cancer cells into animals to model aspects of human disease |