zebrafish scale collection for bone homeostasis studies

<meta charset="utf8"></head><body>去除斑马鱼鳞片用于培养和骨骼生物学研究

In recent years, zebrafish (Danio rerio) have emerged as a valuable model organism in various scientific fields, including genetics, developmental biology, and toxicology1,2,3. Zebrafish are small tropical freshwater fish native to the rivers of Southeast Asia4. They have become a popular model organism in biology due to their easy maintenance, small size, rapid reproductive cycle, and translucent embryos1. This allows for easy observation of their internal development, making them ideal for studying various biological processes in developmental biology. Zebrafish share genetic similarities with humans; approximately 70% of human genes have at least one zebrafish counterpart, making them an excellent model for studying genetic disorders and diseases in humans5,6. By manipulating specific genes in zebrafish, researchers can gain valuable insights into the function and behavior of genes, which can then be applied to human health research6, gene editing, and the creation of transgenic lines7,8.
Zebrafish scales regenerate after removal9,10 and can be cultured for one to three days with a basic (non-CO2) incubator while they are used for experiments11. The use of zebrafish scales is advantageous in basic laboratories as they can be removed from anesthetized fish without the need for euthanasia. Zebrafish scales are a component of the dermal skeleton, consisting primarily of two layers: the internal layer, which is thick and made of partially mineralized tissue formed by layers of collagen fibrils, and the external layer, which is highly mineralized and contains a network of interwoven collagen fibrils12,13&#160;(Figure 1A-C). These morphological and cellular features of the scale are easily observed under a standard compound microscope. These characteristics make zebrafish scales a good model for studying cellular and molecular. For example, zebrafish scales have been used to study bone homeostasis, including bone cell activity11,12. They have also been used to understand tissue regeneration9,14,15, gene pathways and signaling14,16, metabolism17, microbiota studies18, etc. Zebrafish, similar to other teleosts, are also highly sensitive to environmental factors such as pollutants and toxins19,20,21,22. As such, fish scales are used to study exposures to toxins in fish populations. These characteristics make scales an excellent model for teaching students about the impacts of environmental factors on living organisms. Additionally, scales from transgenic zebrafish lines, such as Tg(osterix:mCherry) and Tg(runx2a:GFP), could add another level of complexity to student experiments.
In summary, by using zebrafish scales, researchers can design and conduct experiments to study various aspects of biology, from cellular mechanisms to environmental changes. Zebrafish are also a valuable resource in higher education since they can provide hands-on experiences in experimental design, data collection, and analysis. Zebrafish can also be utilized in advanced courses and research-focused programs to explore specific areas of interest. This article describes a protocol for using zebrafish scales in research and classroom learning environments.

<meta charset="utf8"></head><body>作者聚焦：利用斑马鱼鳞片推进骨细胞活性研究

用于研究斑马鱼鳞片细胞动力学的体外培养技术

用于骨稳态研究的斑马鱼鳞片系列

zebrafish-scale-collection-for-bone-homeostasis-studies

Research

JoVE Journal

Developmental Biology

Zebrafish Scale Collection for Bone Homeostasis Studies

635 次观看. 首先，将 10 克 DMEM 粉末和 5.95 克 HEPES 溶解在一升蒸馏水中，并将培养基的 pH 值调节至 6.91。将溶液分装到较小的容器中，并储存在 4 摄氏度下。然后将 88% DMEM 培养基与 HEPES、10% 胎牛血清和 2% 青霉素链霉素混合。要准备斑马鱼，请为四到五条成年斑马鱼设置一个装有大约两升水的容器或水箱。使用鱼网，将 4 到 5 条成年斑马鱼转移到准备好的?...

视频: 用于骨稳态研究的斑马鱼鳞片系列

In Vitro Culturing Technique for Studying Cellular Dynamics in Zebrafish Scales

Zebrafish scales offer a variety of advantages for use in standard laboratories for teaching and research purposes. Scales are easily collected without the need for euthanasia, regenerate within a couple of weeks, and are translucent and small, allowing them to be viewed using a standard microscope. Zebrafish scales are especially useful in educational environments, as they provide a unique opportunity for students to engage in hands-on learning experiences, particularly in understanding cellular dynamics and in vitro culturing methods. The main objective of this protocol is to describe a method for collecting and maintaining zebrafish scales in culture for use in a variety of biological studies using basic laboratory equipment. Additionally, the protocol details their use in understanding bone homeostasis by examining the activity of bone cells involved in bone resorption and deposition. It also includes additional protocols for general techniques, such as the visualization of nuclei and apoptotic cells. The in vitro culturing protocol produces reliable results with minimal reagents and equipment. This article discusses the benefits of using in vitro cultures of zebrafish scales to foster scientific inquiry and outlines the resources needed to support their integration into educational settings.

This protocol offers a method to study cellular dynamics using a simple in vitro culture technique. It provides an opportunity for zebrafish researchers and educators to study cellular processes, such as those related to bone homeostasis and basic cell biology, by visualizing fluorescent nuclei and apoptotic cells within the scales.

Zebrafish scales offer a variety of advantages for use in standard laboratories for teaching and research purposes. Scales are easily collected without ...