Mechanisms for type-II vitellogenesis-inhibiting hormone suppression of vitellogenin transcription in shrimp hepatopancreas: Crosstalk of GC/cGMP pathway with different MAPK-dependent cascades.
Mechanisms for type-II vitellogenesis-inhibiting hormone suppression of vitellogenin transcription in shrimp hepatopancreas: Crosstalk of GC/cGMP pathway with different MAPK-dependent cascades.
复制标题
II型卵黄生成抑制激素抑制虾肝胰腺中卵黄原蛋白转录的机制：GC/cGMP途径与不同MAPK依赖性级联的串扰
DOI：
10.1371/journal.pone.0194459
复制
发表时间：
2018
期刊：
影响因子：
3.7
通讯作者：
Hu C
中科院分区：
文献类型：
--
作者：
Chen T;Ren C;Jiang X;Zhang L;Li H;Huang W;Hu C
Vitellogenesis is the process of yolk formation via accumulating vitellin (Vn) with nutrients in the oocytes. Expression of vitellogenin (Vg), the precursor of Vn, is one of the indicators for the start of vitellogenesis. In Pacific white shrimp (Litopenaeus vannamei), the type-II vitellogenesis-inhibiting hormone (VIH-2) effectively suppresses hepatopancreatic Vg mRNA expression. In this study, we demonstrate the increasing transcript levels of hepatopancreatic Vg during L. vannamei ovarian development, suggesting that the hepatopancreas-derived Vg/Vn may also contribute to vitellogenesis in this species. Using a combination of in vivo injections and in vitro primary cell cultures, we provide evidences that the inhibition of VIH-2 on hepatopancreatic Vg gene expression is mediated through a functional coupling of the GC/cGMP pathway with different MAPK-dependent cascades in female shrimp. In VIH-2 signaling, the NO-independent GC/cGMP/PKG cascades were upstream of the MAPKs. Activations of the MAPK signal by VIH-2 include the phosphorylation of JNK and the mRNA/protein expression of P38MAPK. Additionally, the cAMP/PKA pathway is another positive intracellular signal for hepatopancreatic Vg mRNA expression but is independent of its VIH-2 regulation. Our findings establish a model for the signal transduction mechanism of Vg regulation by VIH and shed light on the biological functions and signaling of the CHH family in crustaceans.
登录
查看更多内容
影响因子：
4.5
作者：
Arcos, Fabiola G.;Ibarra, Ana M.;Racotta, Llie S.
通讯作者：
Racotta, Llie S.
影响因子：
3.6
作者：
Kung, SY;Chan, SM;He, JG
通讯作者：
He, JG
影响因子：
3.4
作者：
Avarre JC;Lubzens E;Babin PJ
通讯作者：
Babin PJ
影响因子：
1.9
作者：
Bae, Sun-Hye;Okutsu, Tomoyuki;Wilder, Marcy N.
通讯作者：
Wilder, Marcy N.
影响因子：
3.6
作者：
Kang, Bong Jung;Okutsu, Tomoyuki;Wilder, Marcy N.
通讯作者：
Wilder, Marcy N.