TY - JOUR
T1 - Estrogen receptors in neuropeptide Y neurons
T2 - at the crossroads of feeding and reproduction
AU - Acosta-Martinez, Maricedes
AU - Horton, Teresa H
AU - Levine, Jon E.
PY - 2007/3/1
Y1 - 2007/3/1
N2 - Hypothalamic neuropeptide Y (NPY) neurons function as physiological integrators in at least two different neuroendocrine systems - one governing feeding and the other controlling reproduction. Estrogen might modulate both systems by regulating NPY gene expression; it might reduce food intake by suppressing NPY expression, and evoke reproductive hormone surges by stimulating it. How can estrogen exert opposing effects in an ostensibly homogeneous NPY neuronal population? Recent work with immortalized NPY-producing cells suggests that the ratio of estrogen receptor α:estrogen receptor β can determine the direction and temporal pattern of transcriptional responses to estrogen. Because this ratio might itself be physiologically regulated, these findings provide one explanation for multiple neuropeptidergic responses to a single steroid hormone.
AB - Hypothalamic neuropeptide Y (NPY) neurons function as physiological integrators in at least two different neuroendocrine systems - one governing feeding and the other controlling reproduction. Estrogen might modulate both systems by regulating NPY gene expression; it might reduce food intake by suppressing NPY expression, and evoke reproductive hormone surges by stimulating it. How can estrogen exert opposing effects in an ostensibly homogeneous NPY neuronal population? Recent work with immortalized NPY-producing cells suggests that the ratio of estrogen receptor α:estrogen receptor β can determine the direction and temporal pattern of transcriptional responses to estrogen. Because this ratio might itself be physiologically regulated, these findings provide one explanation for multiple neuropeptidergic responses to a single steroid hormone.
UR - http://www.scopus.com/inward/record.url?scp=33847061618&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33847061618&partnerID=8YFLogxK
U2 - 10.1016/j.tem.2006.12.001
DO - 10.1016/j.tem.2006.12.001
M3 - Short survey
C2 - 17174101
AN - SCOPUS:33847061618
VL - 18
SP - 48
EP - 50
JO - Trends in Endocrinology and Metabolism
JF - Trends in Endocrinology and Metabolism
SN - 1043-2760
IS - 2
ER -