Immunohistochemistry to Study the Relationship Between Macrophages and Infiltrated Immune Cells

Published: February 29, 2024

Abstract

Source: Albano-Aluquin, S. et al., An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis. J. Vis. Exp. (2019)

This video demonstrates a technique to quantify the relative ratio of macrophages among the total infiltrated immune cell populations in temporal artery biopsy. The immunohistochemical staining of a tissue section affected by autoimmune disease selectively stains the immune cells with specific receptors to visually differentiate them from the rest of the cells.

Protocol

All procedures involving sample collection have been performed in accordance with the institute's IRB guidelines. 1. Histopathological Preparation, and Processing After Obtaining Temporal Artery Biopsy NOTE: The temporal artery biopsy (TAB) is performed under local anesthesia and sterile conditions by a certified surgeon. After surgically obtaining a 3 cm arterial section on the more affected side, the specimen is fixed in fo…

Divulgations

The authors have nothing to disclose.

Materials

Microtome Reichert-Jung
Plain and frosted microscope slides and cover slips Fisher Scientific 
Vertical rack Fisher Scientific 
Light microscope Olympus BX60 microscope
Xylene
Acetone in distilled water concentrations 100%, 90%, 70%
Tris-buffered saline solution (TBS)  Dako Wash BufferS3006
3% hydrogen peroxide in TBS
Diaminobenzidine (DAB) Sigma Fast Tablet set
Chemical Permount  Mounting Medium Fisher Scientific  SP-15-100
Harleco Gill's III Hematoxylin Fiisher Scientific 23-750-019
Harleco Eosin Y 1% Alcoholic Stock Solution Fisher Scientific  23-749-977
10 mM citric acid monohydrate (pH 6.0)
Polyclonal rabbit anti-folate receptor beta  Manohar Ratnam optimized at 1:800
Monoclonal mouse anti-human CD68 Dako  M071801 optimized at 1:200
Polyclonal rabbit anti-CD3 Agilent Dako A0452 optimized at 1:100
Polymer goat anti- rabbit/mouse secondary antibody Dako
Placental tissue  for FRB positive control

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Citer Cet Article
Immunohistochemistry to Study the Relationship Between Macrophages and Infiltrated Immune Cells. J. Vis. Exp. (Pending Publication), e21983, doi: (2024).

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