TY - JOUR
T1 - Ultrastructural and immunocytochemical characterization of the rat non-preganglionic Edinger-Westphal nucleus
AU - Van Wijk, Diane C.W.A.
AU - Xu, Lu
AU - Spiegelberg, Linda
AU - Struik, Roeland F.
AU - Meijer, Kari H.
AU - Gaszner, Balázs
AU - Kozicz, Tamás
AU - Roubos, Eric W.
PY - 2009/10
Y1 - 2009/10
N2 - The rodent non-preganglionic Edinger-Westphal nucleus (npEW) is involved in the stress adaptation response. Here we describe the ultrastructural organization of this nucleus in the unchallenged rat, using different tissue fixation and embedding methods, and postembedding immunogold labeling. In this way we have (1) identified Ucn1-immunopositive neurons, (2) described the ultrastructure of these neurons with focus on cell organelles involved in secretion (rough endoplasmic reticulum, Golgi apparatus, secretory granules), (3) demonstrated the subcellular coexistence of Ucn1 with cocaine- and amphetamine-related transcript peptide, and (4) classified various morphological types and configurations of synaptic contact present in the npEW and, specifically, on the npEW-Ucn1 neurons. The data obtained provide the morphological basis for future studies on the plastic effects of acute and chronic stressors as well as feeding conditions specifically affecting the secretory activity of npEW-Ucn1 neurons.
AB - The rodent non-preganglionic Edinger-Westphal nucleus (npEW) is involved in the stress adaptation response. Here we describe the ultrastructural organization of this nucleus in the unchallenged rat, using different tissue fixation and embedding methods, and postembedding immunogold labeling. In this way we have (1) identified Ucn1-immunopositive neurons, (2) described the ultrastructure of these neurons with focus on cell organelles involved in secretion (rough endoplasmic reticulum, Golgi apparatus, secretory granules), (3) demonstrated the subcellular coexistence of Ucn1 with cocaine- and amphetamine-related transcript peptide, and (4) classified various morphological types and configurations of synaptic contact present in the npEW and, specifically, on the npEW-Ucn1 neurons. The data obtained provide the morphological basis for future studies on the plastic effects of acute and chronic stressors as well as feeding conditions specifically affecting the secretory activity of npEW-Ucn1 neurons.
KW - Cocaine- and amphetamine-regulated transcript peptide
KW - Colocalization
KW - Postembedding immunogold electron microscopy
KW - Stress
KW - Synaptology
KW - Urocortin 1
UR - http://www.scopus.com/inward/record.url?scp=67650608191&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67650608191&partnerID=8YFLogxK
U2 - 10.1016/j.ygcen.2009.04.002
DO - 10.1016/j.ygcen.2009.04.002
M3 - Review article
C2 - 19362554
AN - SCOPUS:67650608191
SN - 0016-6480
VL - 164
SP - 32
EP - 39
JO - General and Comparative Endocrinology
JF - General and Comparative Endocrinology
IS - 1
ER -