Dissection and Lipid Droplet Staining of Oenocytes in <em>Drosophila</em> Larvae

Chuanxian Wei; Yan Yan; Xiaoli Miao; Renjie Jiao

doi:10.3791/60606

Cotocação e gota lipídica manchando de enocitos nas larvas de Drosophila

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Dissection and Lipid Droplet Staining of Oenocytes in Drosophila Larvae

Cotocação e gota lipídica manchando de enocitos nas larvas de Drosophila

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05:37 min

December 28, 2019

DOI: 10.3791/60606-v

Chuanxian Wei*¹, Yan Yan*¹, Xiaoli Miao¹, Renjie Jiao^1,2,3

¹Sino-French Hoffmann Institute, School of Basic Medical Sciences,Guangzhou Medical University, ²The Second Affiliated Hospital of Guangzhou Medical University, ³The State Key Laboratory of Respiratory Disease,Guangzhou Medical University

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Overview

This study presents a method for dissecting oenocytes and staining lipid droplets in Drosophila larvae, utilizing the BODIPY 493/503 fluorescent dye. It aims to investigate lipid droplet behavior under normal and stress conditions, facilitating insights into lipid metabolism in both insects and mammals.

Key Study Components

Research Area

Cell biology
Lipid metabolism
Insect physiology

Background

Oenocytes play a significant role in lipid storage and metabolism.
Understanding lipid droplet dynamics is crucial for insights into metabolic diseases.
Drosophila serves as a powerful model organism for genetic studies.

Methods Used

Dissection of oenocytes from Drosophila larvae
Use of BODIPY 493/503 for lipid droplet staining
Confocal microscopy for imaging

Main Results

Demonstrated the visualization of lipid droplets in oenocytes.
Showed an increase in lipid droplet numbers in response to starvation.
Provided a feasible protocol for studying lipid metabolism across various contexts.

Conclusions

This method enables researchers to investigate genetic and environmental impacts on lipid metabolism.
It contributes to broader biological understanding and research methodologies in lipid biology.

Frequently Asked Questions

What is the significance of oenocytes in Drosophila?

Oenocytes are crucial for lipid storage and metabolism, making them significant for studies on fat regulation.

How does starvation affect lipid droplet formation?

Starvation leads to an increase in the number of lipid droplets in oenocytes, indicating metabolic responses.

What technologies are utilized in this study?

The study employs dissection techniques, fluorescent staining, and confocal microscopy.

Can this method be applied to mammalian studies?

Yes, with minor modifications, this method can be adapted for mammalian lipid metabolism studies.

What are the conditions for egg laying in Drosophila?

150 virgin females and 75 males are used, kept in light-proof boxes at 25°C with 60% humidity.

How long does it take for larvae to develop?

The larvae develop for approximately 84 hours to reach the third instar stage.

What role does BODIPY 493/503 play in this research?

BODIPY 493/503 is a fluorescent dye used to specifically stain lipid droplets for imaging.

Aqui são apresentados métodos detalhados para a dissecação e mancha de gotícula lipídica de estenocitos em larvas de Drosophila usando BODIPY 493/503, um corante fluorescente específico da gotícula lipídica.

Este método de dissecção de enócitos e coloração de gotículas lipídicas pode ser usado para perceber o aparecimento de gotículas lipídicas em larvas de drosophila oenocito em condições normais e estressadas. Este método fornece uma ferramenta útil para estudar o metabolismo lipídico não apenas em insetos, mas também em mamíferos com apenas algumas pequenas modificações. Para induzir a colocação de ovos, coloque 150 moscas virgens fêmeas e 75 machos dos genótipos desejados em uma garrafa de colocação de ovos e coloque a garrafa sob uma caixa à prova de luz em uma incubadora de 25 graus Celsius com 60% de umidade.

Depois de uma hora, transfira as moscas para uma nova garrafa e deixe as moscas colocarem ovos na nova garrafa por uma hora antes de remover os adultos. Em seguida, permita que os ovos se desenvolvam na terceira larva instar por 84 horas a 25 graus Celcius com um ciclo claro-escuro de 12 horas. Antes de iniciar o tratamento de fome, coloque um pedaço de papel filtro de tamanho apropriado em uma placa de Petri de seis centímetros e adicione um mililitro de PBS no papel para criar uma câmara de fome.

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