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

Chuanxian Wei; Yan Yan; Xiaoli Miao; Renjie Jiao

doi:10.3791/60606

JoVE Journal
Biology

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Dissection and Lipid Droplet Staining of Oenocytes in Drosophila Larvae

果蝇幼虫的欧诺细胞的解剖和脂滴染色

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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.

这里介绍了使用BODIPY 493/503（一种脂滴特异性荧光染料）对果蝇幼虫中的卵虫细胞进行解剖和脂滴染色的详细方法。

这种类细胞解剖和脂滴染色的方法，可用于在正常和有压力的条件下，实现果蝇幼虫类细胞中脂滴的出现。这种方法为研究脂质代谢提供了一个有用的工具，不仅在昆虫中，而且在哺乳动物中，只有几个小的修改。为了诱导产卵，将150只雌性处女苍蝇和75只所需基因型的雄性苍蝇放在产卵瓶中，将瓶子放在25摄氏度的孵化器下，湿度为60%。

一小时后，将苍蝇转移到新瓶子里，让苍蝇在新瓶子里产卵一小时，然后把大人移走。然后，让卵子在25摄氏度的25度下发育成第三个星幼虫，周期为12小时。在开始饥饿治疗之前，将一张大小适当的滤纸放入一个六厘米的培养皿中，并在纸张上加入一毫升 PBS 以创建饥饿室。

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