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Updated: Jun 10, 2026

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Mechanical Dissociation of Tissues for Single Cell Analysis Using a Motorized Device
Published on: November 10, 2023
Single Cell Isolation from Surgically Resected Tissue Via Mechanical Dissociation Using TissueGrinder.
Prama Pallavi1, Stefan Scheuermann2
1Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
Methods in Molecular Biology (Clifton, N.J.)
|January 9, 2024
Summary
Researchers developed a novel, enzyme-free method using the TissueGrinder device for mechanical dissociation of tumor tissue. This technique reliably isolates primary cells for various in vitro research applications, improving upon conventional methods.
Area of Science:
- Biotechnology
- Cell Biology
- Oncology Research
Background:
- Primary cells are crucial for in vitro research.
- Traditional methods for single-cell suspension from solid tissues lack robustness and reproducibility.
- Enzymatic dissociation methods can affect cell viability and function.
Purpose of the Study:
- To introduce a novel, enzyme-free method for isolating primary cells from solid tumor tissue.
- To present the TissueGrinder, a semi-automated benchtop device for mechanical tissue dissociation.
- To demonstrate the utility of isolated primary cells in downstream assays.
Main Methods:
- Mechanical dissociation of surgically resected tumor tissue using the TissueGrinder device.
- Enzyme-free protocol to minimize cellular stress and preserve cell integrity.
- Characterization of isolated primary cells for downstream applications.
Main Results:
- Successful isolation of viable primary cells from tumor tissue via mechanical dissociation.
- The TissueGrinder device provides a robust and reproducible method for cell isolation.
- Isolated primary cells are suitable for various biochemical and cell-based assays.
Conclusions:
- The TissueGrinder offers an improved, enzyme-free approach for primary cell isolation from solid tumors.
- This method enhances the reliability and reproducibility of generating single-cell suspensions for research.
- The isolated cells are a valuable resource for diverse in vitro analyses in cancer research.
Related Concept Videos
Tissue Homogenization and Cell Lysis
Tissue homogenization involves disintegrating tissue architecture and lysing cells, and is an early step in isolating and analyzing cellular components. The method used for homogenization depends on the sample type, the amount of sample available, the analyte to be obtained, and the sensitivity of the method. These methods are broadly classified as mechanical and non-mechanical methods.
Mechanical methods of tissue homogenization
These methods rely on applying external physical force to disrupt...
Mechanical methods of tissue homogenization
These methods rely on applying external physical force to disrupt...
Overview Of Cell Separation And Isolation
Cell separation was first achieved in 1964 by S. H. Seal, who separated large tumor cells from the smaller blood cells using filtration. Two years later, Pohl and Hawk performed experiments on how cells respond differently to a nonuniform electric field based on the cell type. Such observations were the inception of cell separation methods, which allow isolating a single cell type from a heterogeneous sample.

