Human Tissue Preparation
Human Tissue Preparation - Related Videos
10:58
Preparation of Human Myocardial Tissue for Long-Term Cultivation
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Cited by 11 •
2022
We present a protocol for ex vivo cultivation of human ventricular myocardial tissue. It allows for detailed analysis of contraction force and kinetics, as well as the application of pre- and afterload to mimic the in vivo physiological environment more closely.
07:48
Working with Human Tissues for Translational Cancer Research
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Cited by 4 •
2015
Translational cancer research is dependent on extraction of human tissues. Much work has gone into optimizing extraction methods for ex vivo analysis. Here, we describe tissue processing methods allowing for maximal data output from limited samples.
09:33
Preparation Of Neovascular Tissues from Human Glioma Tissues for Quantitative Proteomics Analysis of Tumor Angiogenesis
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2026
This protocol successfully prepared sufficient high-quality neovascular tissue from glioma samples using laser-capture microdissection for quantitative proteomics analysis of tumor angiogenesis, overcoming the limitations of studies that traditionally focus mainly on angiogenic factors and providing a large-scale proteomics profile of glioma angiogenesis.
11:12
Tissue Engineering of a Human 3D in vitro Tumor Test System
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Cited by 34 •
2013
Methods to create human 3D tumor tissues as test systems are described. These technologies are based on a decellularized Biological Vascularized Scaffold (BioVaSc), primary human cells and a tumor cell line, which can be cultured under static as well as under dynamic conditions in a flow bioreactor.
11:55
Preparation of Non-human Primate Brain Tissue for Pre-embedding Immunohistochemistry and Electron Microscopy
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Cited by 6 •
2017
Here, we provide an easy, low-cost, and time-efficient protocol to chemically fix primate brain tissue with acrolein fixative, allowing for long-term preservation that is compatible with pre-embedding immunohistochemistry for transmission electron microscopy.
FAQs
Fixed, paraffin-embedded tissue stabilizes proteins and cellular structures, making it suitable for examining architecture and supporting histopathology. Fresh or frozen tissue better preserves nucleic acids for molecular assays. The choice therefore depends on the intended analysis: structural and protein-related evaluation favors fixed material, whereas genomic or other nucleic-acid studies may require fresh or frozen specimens.
Standardized handling limits distortion and degradation before analysis. Consistent preservation, processing, and sectioning help ensure that observed cellular architecture and molecular features reflect the specimen rather than variable preparation conditions. This consistency is important when researchers compare tumors, normal tissue, patient specimens, or results collected across experiments, because unreliable preparation can weaken diagnostic and research conclusions.
Thin sections provide a prepared surface in which cellular architecture can be examined and stained. Preserving that architecture helps investigators evaluate differences between malignant and normal tissue and supports tumor classification. If processing introduces distortion, the resulting section may provide a less reliable basis for histopathology, biomarker evaluation, or comparisons used in cancer research.
Researchers can prepare tumor and corresponding normal specimens under controlled conditions, then examine their cellular architecture and molecular features. These matched observations support tumor classification, biomarker evaluation, and studies of differences associated with malignancy. The value of the comparison depends on preserving both specimen types consistently, so preparation-related variation does not obscure biologically meaningful contrasts.
A typical workflow begins with controlled collection, followed by preservation, processing, embedding when appropriate, sectioning, and staining. Fixed tissue may be embedded in paraffin and cut into thin sections for architectural examination. Fresh or frozen material can instead be maintained for molecular assays. Selecting the workflow according to the intended analysis helps preserve the most relevant specimen features.
Fresh or frozen tissue is appropriate when preserving nucleic acids is central to the planned molecular assay. Paraffin-embedded tissue is more suitable when the investigation emphasizes stabilized proteins, cellular structures, tissue architecture, or stained sections for histopathology. This decision should be made before processing because each preparation route preserves different features and therefore supports different research outcomes.