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Updated: Jul 2, 2026
Working with Human Tissues for Translational Cancer Research
Published on: November 26, 2015
Handling, storage, and preparation of human tissues
1University of North Carolina, Chapel Hill, North Carolina, USA.
This study outlines methods for preparing human tissues for flow cytometry. It covers tissue collection, transport, and dissociation. Protocols include mechanical and enzymatic methods for single-cell suspensions. Tissue imprints and cryospin preparations are detailed for nucleus isolation. The study also addresses fixation, cryopreservation, and debris removal. These methods aim to standardize tissue handling and improve the accuracy of flow cytometry results.
Area of Science:
- Biomedical sample processing
- Cell biology techniques
- Tissue handling protocols
Background:
Human tissue processing is essential for accurate flow cytometry. Prior methods have focused on single-cell suspensions. However, tissue handling remains inconsistent across labs. No standardized approach exists for tissue transport and storage. Variability in dissociation methods affects cell viability. Tissue imprint preparation is underutilized in many settings. Fixation and cryopreservation protocols differ widely. This gap motivated the need for unified tissue handling guidelines.
Purpose Of The Study:
This work aims to standardize human tissue handling for flow cytometry. The goal is to optimize tissue collection and transport. The focus is on preparing single-cell suspensions. The study addresses tissue disaggregation methods. It also covers preparation of intact nuclei from various tissue types. The purpose is to provide reproducible protocols. It includes methods for cryospin and cryopreservation. The study seeks to reduce variability in sample preparation.
Main Methods:
The study outlines general tissue collection and transport methods. It includes protocols for tissue imprint preparation. Mechanical and enzymatic dissociation techniques are described. Protocols for single-cell suspensions from body fluids are detailed. Methods for preparing intact nuclei from fresh tissues are outlined. Frozen and paraffin-embedded tissues are also covered. Support protocols include fixation and cryopreservation. Each method is tailored to specific cell parameters and marker localization.
Main Results:
The protocols enable adequate single-cell suspensions for flow cytometry. Tissue collection methods vary based on marker localization. Mechanical dissociation is suitable for soft tissues. Enzymatic methods work best for fibrous tissues. Tissue imprints preserve spatial cell relationships. Cryospin preparation improves nucleus isolation from fresh tissues. Cryopreservation maintains cell viability for later analysis. Debris removal protocols enhance sample purity and measurement accuracy.
Conclusions:
The study provides adaptable tissue handling protocols for flow cytometry. The methods address tissue collection, transport, and dissociation. Tissue imprint preparation is a useful adjunct to single-cell suspensions. Mechanical and enzymatic methods are suited to different tissue types. Cryospin and cryopreservation protocols improve nucleus and cell preservation. Debris removal is critical for accurate flow cytometry results. The authors emphasize protocol consistency for reliable data. These findings suggest optimized tissue handling improves experimental reproducibility.
Frequently Asked Questions
The study provides protocols for preparing single-cell suspensions and tissue imprints for flow cytometry.
Mechanical methods suit soft tissues; enzymatic methods are better for fibrous tissues.
Cryospin improves nucleus isolation from fresh tissues, enhancing flow cytometry accuracy.
Debris removal increases sample purity and reduces interference in flow cytometry measurements.
Tissue imprints preserve spatial cell relationships, complementing single-cell suspension data.
The authors suggest that consistent protocols improve data reproducibility in flow cytometry.
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