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| Format: | Artículo científico |
| Sprache: | en |
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eLife
2025
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| Online-Zugang: | https://pubmed.ncbi.nlm.nih.gov/40531176/ |
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| author | Hozumi, Akiko Totsuka, Nozomu M Onodera, Arata Wang, Yanbin Hamada, Mayuko Shiraishi, Akira Satake, Honoo Horie, Takeo Hotta, Kohji Sasakura, Yasunori |
| author_facet | Hozumi, Akiko Totsuka, Nozomu M Onodera, Arata Wang, Yanbin Hamada, Mayuko Shiraishi, Akira Satake, Honoo Horie, Takeo Hotta, Kohji Sasakura, Yasunori Hozumi, Akiko Totsuka, Nozomu M Onodera, Arata Wang, Yanbin Hamada, Mayuko Shiraishi, Akira Satake, Honoo Horie, Takeo Hotta, Kohji Sasakura, Yasunori |
| collection | PubMed - marine biology |
| contents | Stimulatory and inhibitory G-protein signaling relays drive cAMP accumulation for timely metamorphosis in the chordate . Hozumi, Akiko Totsuka, Nozomu M Onodera, Arata Wang, Yanbin Hamada, Mayuko Shiraishi, Akira Satake, Honoo Horie, Takeo Hotta, Kohji Sasakura, Yasunori Animals Metamorphosis, Biological Cyclic AMP Signal Transduction Ciona intestinalis Larva GTP-Binding Proteins Ciona Larvae of the ascidian initiate metamorphosis tens of minutes after adhesion to a substratum via their adhesive organ. The gap between adhesion and metamorphosis initiation is suggested to ensure the rigidity of adhesion, allowing to maintain settlement after losing locomotive activity through metamorphosis. The mechanism producing the gap is unknown. Here, by combining gene functional analyses, pharmacological analyses, and live imaging, we propose that the gap represents the time required for sufficient cyclic adenosine monophosphate (cAMP) accumulation to trigger metamorphosis. Not only the Gs pathway but also the Gi and Gq pathways are involved in the initiation of metamorphosis in the downstream signaling cascade of the neurotransmitter GABA, the known initiator of metamorphosis. The mutual crosstalk of stimulatory and inhibitory G-proteins functions as the accelerator and brake for cAMP production, ensuring the faithful initiation of metamorphosis at an appropriate time and in the right situation. |
| format | Artículo científico |
| id | pubmed_40531176 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | eLife |
| record_format | pubmed |
| spellingShingle | Stimulatory and inhibitory G-protein signaling relays drive cAMP accumulation for timely metamorphosis in the chordate . Hozumi, Akiko Totsuka, Nozomu M Onodera, Arata Wang, Yanbin Hamada, Mayuko Shiraishi, Akira Satake, Honoo Horie, Takeo Hotta, Kohji Sasakura, Yasunori Animals Metamorphosis, Biological Cyclic AMP Signal Transduction Ciona intestinalis Larva GTP-Binding Proteins Ciona Stimulatory and inhibitory G-protein signaling relays drive cAMP accumulation for timely metamorphosis in the chordate . Hozumi, Akiko Totsuka, Nozomu M Onodera, Arata Wang, Yanbin Hamada, Mayuko Shiraishi, Akira Satake, Honoo Horie, Takeo Hotta, Kohji Sasakura, Yasunori Animals Metamorphosis, Biological Cyclic AMP Signal Transduction Ciona intestinalis Larva GTP-Binding Proteins Ciona Larvae of the ascidian initiate metamorphosis tens of minutes after adhesion to a substratum via their adhesive organ. The gap between adhesion and metamorphosis initiation is suggested to ensure the rigidity of adhesion, allowing to maintain settlement after losing locomotive activity through metamorphosis. The mechanism producing the gap is unknown. Here, by combining gene functional analyses, pharmacological analyses, and live imaging, we propose that the gap represents the time required for sufficient cyclic adenosine monophosphate (cAMP) accumulation to trigger metamorphosis. Not only the Gs pathway but also the Gi and Gq pathways are involved in the initiation of metamorphosis in the downstream signaling cascade of the neurotransmitter GABA, the known initiator of metamorphosis. The mutual crosstalk of stimulatory and inhibitory G-proteins functions as the accelerator and brake for cAMP production, ensuring the faithful initiation of metamorphosis at an appropriate time and in the right situation. |
| title | Stimulatory and inhibitory G-protein signaling relays drive cAMP accumulation for timely metamorphosis in the chordate . |
| topic | Animals Metamorphosis, Biological Cyclic AMP Signal Transduction Ciona intestinalis Larva GTP-Binding Proteins Ciona |
| url | https://pubmed.ncbi.nlm.nih.gov/40531176/ |