3D Microscopy of Murine Bone Marrow Hematopoietic Tissues

Area of Science:

• Hematology
• Immunology
• Cell Biology
• Microscopy

Background:

• Bone marrow (BM) tissues are crucial for hematopoiesis, immune responses, and skeletal metabolism.
• These functions rely on complex cellular interactions governed by largely unknown molecular mechanisms.
• Microscopic study of BM structure and cell associations is key to understanding its biological underpinnings.

Purpose of the Study:

• To provide a detailed experimental protocol for high-resolution imaging of the bone marrow microenvironment.
• To enable the study of cellular and structural components within thick BM slices.
• To facilitate multidimensional reconstructions of vast BM volumes at single-cell resolution.

Main Methods:

• Generation of thick bone marrow slices from murine femoral cavities.
• Immunostaining of cellular and structural components within BM samples.
• Optical clearing of BM slices to enhance imaging depth with confocal microscopy.

Main Results:

• A comprehensive experimental pipeline for bone marrow tissue analysis.
• Enables high-resolution, three-dimensional imaging of large BM volumes.
• Allows for the rendering of single-cell resolution reconstructions of the BM microenvironment.

Conclusions:

• The described pipeline overcomes historical challenges in bone marrow imaging.
• Facilitates detailed investigation of the complex bone marrow microenvironment.
• Supports advancements in understanding hematopoietic cell regulation and immune responses.