TY - JOUR
T1 - Crustacean hyperglycemic hormone (CHH) neuropeptidesfamily
T2 - Functions, titer, and binding to target tissues
AU - Chung, J. Sook
AU - Zmora, N.
AU - Katayama, H.
AU - Tsutsui, N.
N1 - Funding Information:
This work was supported by the National Oceanic and Atmospheric Administration (NOAA), Chesapeake Bay Program Grant (NA17FU2841) to the Blue Crab Advanced Research Consortium and Binational Agricultural Research Development (MB-8714-08). Dr. H. Katayama was supported by a Research Fellowship of the Japanese Society for the Promotion of Science for Young Scientists. This article is contribution no. 09-208 of the Center of Marine Biotechnology, University of Maryland Biotechnology Institute, MD, USA.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2010/5
Y1 - 2010/5
N2 - The removal of the eyestalk (s) induces molting and reproduction promoted the presence of regulatory substances in the eyestalk (ES), particularly medulla terminalis X-organ and the sinus gland (MTXO-SG). The PCR-based cloning strategies have allowed for isolating a great number of cDNAs sequences of crustacean hyperglycemic hormone (CHH) neuropeptides family from the eyestalk and non-eyestalk tissues, e.g., pericardial organs and fore- and hindguts. However, the translated corresponding neuropeptides in these tissues, their circulating concentrations, the mode of actions, and specific physiological functions have not been well described. The profiles of CHH neuropeptides present in the MTXO-SG may differ among decapod crustacean species, but they can be largely divided into two sub-groups on the basis of structural homology: (1) CHH and (2) molt-inhibiting hormone (MIH)/mandibular organ-inhibiting hormone (MOIH)/vitellogenesis/gonad-inhibiting hormone (V/GIH). CHH typically elevating the level of circulating glucose from animals under stressful conditions (hyper- and hypothermia, hypoxia, and low salinity) has multiple target tissues and functions such as ecdysteroidogenesis, osmoregulation, and vitellogenesis. Recently, MIH, known for exclusively suppressing ecdysteroidogenesis in Y-organs, is also reported to have an additional role in vitellogenesis of adult female crustacean species, suggesting that some CHH neuropeptides may acquire an extra regulatory role in reproduction at adult stage. This paper reviews the regulatory roles of CHH and MIH at the levels of specific functions, temporal and spatial expression, titers, their binding sites on the target tissues, and second messengers from two crab species: the blue crab, Callinectes sapidus, and the European green crab, Carcinus maenas. It further discusses the diverse regulatory roles of these neuropeptides and the functional plasticity of these neuropeptides in regard to life stage and species-specific physiology.
AB - The removal of the eyestalk (s) induces molting and reproduction promoted the presence of regulatory substances in the eyestalk (ES), particularly medulla terminalis X-organ and the sinus gland (MTXO-SG). The PCR-based cloning strategies have allowed for isolating a great number of cDNAs sequences of crustacean hyperglycemic hormone (CHH) neuropeptides family from the eyestalk and non-eyestalk tissues, e.g., pericardial organs and fore- and hindguts. However, the translated corresponding neuropeptides in these tissues, their circulating concentrations, the mode of actions, and specific physiological functions have not been well described. The profiles of CHH neuropeptides present in the MTXO-SG may differ among decapod crustacean species, but they can be largely divided into two sub-groups on the basis of structural homology: (1) CHH and (2) molt-inhibiting hormone (MIH)/mandibular organ-inhibiting hormone (MOIH)/vitellogenesis/gonad-inhibiting hormone (V/GIH). CHH typically elevating the level of circulating glucose from animals under stressful conditions (hyper- and hypothermia, hypoxia, and low salinity) has multiple target tissues and functions such as ecdysteroidogenesis, osmoregulation, and vitellogenesis. Recently, MIH, known for exclusively suppressing ecdysteroidogenesis in Y-organs, is also reported to have an additional role in vitellogenesis of adult female crustacean species, suggesting that some CHH neuropeptides may acquire an extra regulatory role in reproduction at adult stage. This paper reviews the regulatory roles of CHH and MIH at the levels of specific functions, temporal and spatial expression, titers, their binding sites on the target tissues, and second messengers from two crab species: the blue crab, Callinectes sapidus, and the European green crab, Carcinus maenas. It further discusses the diverse regulatory roles of these neuropeptides and the functional plasticity of these neuropeptides in regard to life stage and species-specific physiology.
KW - Binding
KW - CHH
KW - Energy metabolism
KW - MIH
KW - Molting
KW - Osmoregulation
KW - Second messengers
KW - Titer
KW - Vitellogenesis
KW - VtG expression
UR - http://www.scopus.com/inward/record.url?scp=77951975795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951975795&partnerID=8YFLogxK
U2 - 10.1016/j.ygcen.2009.12.011
DO - 10.1016/j.ygcen.2009.12.011
M3 - Article
C2 - 20026335
AN - SCOPUS:77951975795
SN - 0016-6480
VL - 166
SP - 447
EP - 454
JO - General and Comparative Endocrinology
JF - General and Comparative Endocrinology
IS - 3
ER -