Femoral Bone Marrow Aspiration in Live Mice

Overview

This protocol describes a procedure for serial sampling of femoral bone marrow (BM) without requiring the sacrifice of mice. This method allows for longitudinal studies of BM composition and provides access to cells for ex vivo and transplantation studies.

Key Study Components

Area of Science

• Neuroscience
• Hematology
• Transplantation Biology

Background

• Bone marrow is critical for hematopoiesis.
• Traditional sampling methods often require euthanasia.
• Longitudinal studies can provide insights into disease progression.
• Access to living subjects enhances the relevance of research findings.

Purpose of Study

• To develop a non-lethal method for bone marrow sampling.
• To facilitate repeated assessments of bone marrow over time.
• To enable detailed analysis of hematopoietic cell populations.

Methods Used

• Aspirating bone marrow from the femoral marrow space.
• Using a tuberculin syringe with PBS for the procedure.
• Positioning the mouse's leg for optimal access.
• Flow cytometric and cytological analyses to visualize results.

Main Results

• Successful aspiration of bone marrow contents was achieved.
• Red blood cells were effectively depleted from samples.
• Flow cytometry confirmed the presence of hematopoietic cells.
• The procedure was demonstrated successfully by a skilled technician.

Conclusions

• This method allows for ethical and effective bone marrow sampling.
• It supports ongoing research without sacrificing animal subjects.
• Future studies can leverage this technique for various applications.

Frequently Asked Questions