真菌形态、环形和味觉味蕾的全镶嵌染色、可视化和分析

Overview

This paper introduces a novel method for the whole-mount dissection and analysis of taste buds, specifically fungiform, circumvallate, and palate taste buds, preserving their structures and innervations. The technique allows for precise measurements of cell numbers and innervation volumes, enhancing our understanding of taste bud circuitry and the effects of diseases on taste function.

Key Study Components

Area of Science

• Neuroscience
• Cell Biology
• Systems Biology

Background

• Whole taste bud analysis provides insights into their morphology and functional circuitry.
• Existing methodologies often suffer from high variability due to sampling.
• Understanding taste function is crucial in research related to taste disorders.
• This study aims to define the complete structure of taste buds in relation to their innervation.

Purpose of Study

• To develop a reliable method for dissection and analysis of intact taste buds.
• To investigate the relationships between taste bud cells and their innervating nerve fibers.
• To highlight the implications of this research for understanding circuitry involved in taste sensation.

Methods Used

• This study uses a whole-mount dissection technique for taste buds from the tongue.
• The biological model includes taste buds from Phox2b-Cre TdTomato and TrkB CreER TdTomato mice.
• No multiomics workflows were utilized in this study.
• Critical steps include careful dissection and proper freezing of tissue.
• The samples were then analyzed using staining techniques to visualize different cell types.

Main Results

• The technique successfully preserved and stained taste buds intact, revealing their cellular architecture.
• Measurements showed no correlations between taste bud volumes and innervation volumes.
• Cell pixel-based imaging demonstrated proximity between nerve fibers and taste transducing cells.
• EdU labeling indicated cell proliferation within and outside the taste bud boundary.

Conclusions

• The study presents an innovative protocol for analyzing taste buds that can aid in future research.
• While multiomics analysis was not included, the findings enhance our understanding of taste bud function.
• This method enables detailed examination of cellular relationships, which is valuable for investigating taste disorders.

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