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The Most Common Histology Stains and What They Reveal

  • Writer: Eghosa Arovo
    Eghosa Arovo
  • Jun 24
  • 2 min read

Unlock the secrets in your tissue! Discover which histology stains—from H&E to Sirius Red—reveal your samples’ hidden details.


Introduction


Histological stains are the foundation of tissue-based research, transforming nearly transparent sections into vivid maps of cellular and extracellular structures. While hundreds of specialised dyes exist, a handful of “workhorse” stains recur in labs worldwide—revealing everything from basic tissue architecture to specific biochemical components. In this post, we’ll explore the most frequently used stains, what they highlight, and how you can leverage them in your cancer, developmental or tissue-engineering studies.


A range of stains performed at our histology laboratory: (fron left to right) Sirius Red, IHC, Masson's Trichrome, MSB, IHC
A range of stains performed at our histology laboratory: (fron left to right) Sirius Red, IHC, Masson's Trichrome, MSB, IHC

1. Haematoxylin & Eosin (H&E)


  • What it shows:

    • Haematoxylin stains nuclei deep blue–purple by binding to DNA/RNA.

    • Eosin counter-stains cytoplasm, extracellular matrix and muscle fibers pink to red.

  • Applications:

    • General morphology and tissue architecture

    • Nuclei-to-cytoplasm ratios for grading malignancies

    • Identifying necrosis, inflammation and basic tumour boundaries


2. Periodic Acid–Schiff (PAS)


  • What it shows:

    • Detects carbohydrates (glycogen, mucins, basement membranes) as magenta

    • Often paired with a diastase digest (DPAS) to distinguish glycogen from other PAS-positive substances

  • Applications:

    • Visualising mucinous tumours or goblet cells

    • Highlighting basement membrane integrity in invasion assays

    • Assessing glycogen storage in metabolic or liver studies


3. Masson’s Trichrome


  • What it shows:

    • Collagen: blue or green

    • Muscle & cytoplasm: red

    • Nuclei: black

  • Applications:

    • Quantifying fibrosis and extracellular matrix deposition in tumours and organs

    • Delineating muscle invasion in soft-tissue and gastrointestinal cancers

    • Assessing tissue-engineered graft integration


4. Sirius Red


  • What it shows:

    • Binds collagen types I & III; exhibits birefringence (red/orange vs. green) under polarized light

  • Applications:

    • Precise measurement of fibrotic area

    • Studying stromal remodeling in tumour microenvironments

    • Evaluating anti-fibrotic therapies


5. Perls’ Prussian Blue


  • What it shows:

    • Ferric iron deposits (hemosiderin, ferritin) appear bright blue

  • Applications:

    • Detecting iron overload or hemorrhage in tumor models

    • Characterising macrophage-associated iron in TME studies

    • Monitoring iron-based nanoparticle distribution


6. Reticulin (Gomori’s Silver)


  • What it shows:

    • Type III collagen (reticular fibers) as black filigree networks

  • Applications:

    • Grading hematologic malignancies (e.g. myelofibrosis)

    • Mapping early stromal scaffolding in organoids and tissue constructs

    • Evaluating tumour vascular architecture


7. Elastic Van Gieson (EVG)


  • What it shows:

    • Elastic fibers: black

    • Collagen: red

    • Other tissue (cytoplasm, red blood cells): yellow

  • Applications:

    • Studying vascular remodeling and angiogenesis in cancer

    • Assessing elastic‐fiber integrity in engineered blood vessels

    • Investigating soft-tissue biomechanics


8. Oil Red O (Frozen Sections)

  • What it shows:

    • Neutral lipids (triglycerides, cholesterol esters) as red droplets

  • Applications:

    • Visualising lipid-laden tumour cells or fatty infiltrates

    • Characterising adipogenesis in stem-cell–derived organoids

    • Assessing metabolic changes in cancer cachexia


Putting It All Together

  • Combine stains for multiplex insights: Overlay H&E with IHC or special stains to correlate morphology with molecular markers.

  • Quantitative image analysis: Use digital slide scanners and software to measure stain-positive areas, fiber thickness, cell counts or optical densities.

  • Choose protocols wisely: Match fixation, embedding and section thickness to your chosen stains to ensure crisp, reproducible results.


Why LabNexus?


At LabNexus, our comprehensive stain menu—from H&E and PAS to Sirius Red and EVG—is fully validated for research use. With custom embedding, flexible sectioning and high-resolution scanning, we help you convert your samples into publishable data—without investing in in-house facilities.


Ready to reveal new insights in your tissue research?


 
 
 

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