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Ecdysis-related pleiotropic neuropeptides expression during Anopheles albimanus development
Alejandro Alvarado-Delgado1, Ken Moran-Francia1, Guillermo Perales-Ortiz1
1Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.
Salud Publica De Mexico
|April 25, 2018
Summary
Neuropeptides Crustacean CardioActive Peptide (CCAP), Ecdysis Triggering Hormone (ETH), and corazonin are expressed in Anopheles albimanus larvae. These findings suggest potential targets for malaria vector control strategies.
Area of Science:
- Entomology
- Molecular Biology
- Vector Biology
Background:
- Neuropeptides regulate crucial physiological processes in insects.
- Understanding neuropeptide expression during development is key to identifying novel control targets for disease vectors like Anopheles albimanus.
Purpose of the Study:
- To investigate the developmental transcription patterns of specific neuropeptides in the malaria vector mosquito, Anopheles albimanus.
Main Methods:
- Quantitative PCR (qPCR) was employed to analyze neuropeptide gene expression.
- Samples were collected from various developmental stages: larvae (1st-4th instar), pupae, and adult mosquitoes.
Main Results:
- Transcripts for Crustacean CardioActive Peptide (CCAP), Ecdysis Triggering Hormone (ETH), and corazonin were notably expressed in 4th instar larvae.
- This expression pattern suggests a role for these neuropeptides in initiating ecdysis (molting).
- Insulin Like Peptide 2 (ILP2) showed varied expression across stages, while orcokinin levels decreased during development.
Conclusions:
- CCAP, corazonin, and ETH represent promising targets for developing novel control strategies against Anopheles albimanus.
- Disrupting the larval development of this malaria vector through neuropeptide manipulation is a potential avenue for vector control.
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