Frozen Sections
This method preserves the structural integrity of the tissue, enabling quick diagnosis and intraoperative decision-making.
Frozen Sections are particularly useful for examining margins during surgical procedures, detecting the presence of cancer cells, and guiding further treatment.
The process involves rapidly freezing a small tissue sample, sectioning it using a cryostat, and staining the sections for microscopic analysis.
Accurate and reproducible Frozen Section analysis is essential for patient care, and PubCompare.ai offers a revolutionary AI-driven solution to optimize this workflow, ensuring effortless access to the best protocols and enssuring reliable, high-quality results.
Most cited protocols related to «Frozen Sections»
Keratinocytes were transduced with retroviral supernatants produced from Phoenix cells (provided by G. Nolan, Stanford University, Stanford, CA) as previously described (Getsios et al., 2004 (link)). For differentiation of submerged cultures, cells were grown to confluence and switched to E-medium containing 1.8 mM Ca2+ for 1–6 d (Meyers and Laimins, 1994 (link)). For raft cultures, transduced cells were expanded and grown at an air–medium interface according to published protocols (Meyers and Laimins, 1994 (link)). Organotypic cultures were grown for 3–10 d, at which time they were lysed for RNA/protein analysis, embedded in optimal cutting temperature compound for frozen sections, fixed in 10% neutral-buffered formalin, and embedded in paraffin for histology or fixed in 2% paraformaldehyde/2% glutaraldehyde in cacodylate buffer for EM analysis. For some experiments, cultures were treated with 2–5 µg/ml ETA, DMSO (Thermo Fisher Scientific), 10 µM PKI166 (Novartis), 5 µM U0126 (Cell Signaling Technology), or 10 µM SB203580 (EMD).
Most recents protocols related to «Frozen Sections»
Example 18
Frozen tissue sections of liver were cut at 10 μm and air dried to the slides. After fixation in 10% formalin for 5 min, the slides were briefly washed with running tap water for 10 min, followed by rinse with 60{circumflex over ( )} isopropanol. Subsequently, oil red O working solution (0.3% oil red O) was used for lipid staining for 15 min. Slides were again rinsed with 60% isopropanol and then nuclei were lightly stained with alum haematoxylin, followed by rinse with distilled water and mounted in glycerine jelly. After half an hour, pictures were taken under microscopy.
Exemplary data are shown in
Example 17
Materials and Methods
Human CD40 transgenic mice were inoculated with MC38-hCEA tumor cells (MC-38-CEA-2, Kerafast) s.c. and were administered with 100 μg anti-CD40 antibody or a molar equivalent dose (167 μg) CD40×CEA bsAb (ffAC_05337) or Isotype bsAb i.p. on days 10 and 13. On day 14, tumors were dissected. Frozen tumor sections were stained for human IgG to assess accumulation of administered antibodies, and for CEA to assess CEA expression pattern in the tumors.
Results
After overnight incubation with primary antibodues the slides were washed and incubated with 1/400 secondary antibodies in blocking buffer, at room temperature, for 40 min. Secondary antibodies included Cy2 (CF 488A)-conjugated goat anti-rabbit IgG and/or Cy5 (CF 647)-conjugated goat anti-mouse IgG (Biotium, Hayward, CA). Isotype controls included: purified mouse IgG1 (clone MOPC-21, BioLegend, San Diego, CA), and normal rabbit IgG (sc-2027, Santa Cruz Biotechnologies, Santa Cruz, CA). After 40 min. incubation, slides were washed and mounted with mounting medium containing 4’, 6-diamidino-2-phenylindole (DAPI) for nuclear staining (Vectashield H-1000, Vector lab. Inc. Burlingame, CA).
Collagen and non-collagen proteins were detected by differential staining in tissue sections with two dyes - Sirius Red for all collagens and Fast Green for non-collagen proteins.
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More about "Frozen Sections"
This rapid assessment method allows for the analysis of tissue samples without the need for traditional paraffin-embedding and processing.
By preserving the structural integrity of the tissue, frozen sections enable quick diagnosis and intraoperative decision-making.
Frozen sections are particularly useful for examining margins during surgical procedures, detecting the presence of cancer cells, and guiding further treatment.
The process involves rapidly freezing a small tissue sample, sectioning it using a cryostat, and staining the sections for microscopic analysis.
Accurate and reproducible frozen section analysis is essential for patient care.
DAPI (4',6-diamidino-2-phenylindole) and Alexa Fluor 488 are fluorescent stains commonly used in frozen section analysis, enabling the visualization of cellular structures and specific target molecules, respectively.
OCT (Optimal Cutting Temperature) compound is a versatile embedding medium that facilitates the freezing and sectioning of tissue samples.
Oil Red O is a stain used to detect the presence of lipids in frozen sections, particularly useful for the analysis of fatty tissue or metabolic disorders.
Fluorescence microscopy is an invaluable tool for visualizing and analyzing the stained frozen sections, providing high-contrast images and the ability to detect specific biomolecules.
Tissue-Tek OCT compound is a widely used embedding medium that ensures the proper freezing and sectioning of tissue samples.
The cryostat is the essential instrument for cutting thin, frozen sections of tissue, enabling the preparation of samples for microscopic examination.
Triton X-100 is a detergent commonly used in the processing of frozen sections, as it helps to permeabilize cell membranes and improve the penetration of stains and antibodies.
PubCompare.ai offers a revolutionary AI-driven solution to optimize the frozen section workflow, ensuring effortless access to the best protocols and enssuring reliable, high-quality results.
This innovative platform helps researchers and clinicians streamline their frozen section analysis, leading to more accurate diagnoses and improved patient outcomes.