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Vector red ap substrate

Manufactured by Vector Laboratories
Sourced in United States

Vector Red (AP) substrate is a chromogenic substrate used for alkaline phosphatase detection in immunohistochemistry and in situ hybridization applications. It produces a red-colored precipitate at the site of the enzymatic reaction.

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2 protocols using vector red ap substrate

1

Immunohistochemical Analysis of Inflammatory Markers

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Captured sections were rehydrated and overnight epitope retrieval was performed in sodium citrate buffer at 60°C. Tissue sections were blocked with 5% BSA in TBS containing 0.2% Tween‐20 (TBST) at RT for 1 h and incubated overnight with primary antibodies for iNOS (Abcam; ab15323; rabbit polyclonal; 1:50), Arginase‐1 (Cell Signaling Technologies; #93668; rabbit monoclonal; 1:200), or Ly6G (Invitrogen; #14‐5931‐82; rat monoclonal; 1:100). Secondary antibodies were probed for 2 h at RT using HRP‐(rabbit) or AP‐(rat) conjugates (Jackson Immunolabs). Tissues were developed with ImmPACT DAB (HRP) or Vector Red (AP) substrate (Vector Labs). Arginase‐1 and Ly6G sections were counterstained with hematoxylin while iNOS sections were left without counterstain. Tissues were dehydrated through alcohol and xylene and mounted with Cytoseal XYL. Images were collected on an Olympus BX43 upright microscope equipped with an Olympus DP74 CMOS camera operated by cellSens Standard software. Images were quantified in ImageJ/FIJI.
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2

Immunohistochemical Staining Protocol

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Reagents for buffers, toluene for tissue defatting and dehydration, bovine serum albumin (BSA) (Cat#A7030), and Harris Hematoxylin (Cat#HHS32) were from Sigma (St. Louis, MO, USA). From Vector Laboratories (Burlingame, CA, USA) there were: Antigen Unmasking Solution, Citric Acid Based, pH 6.0 (Cat#H-3300); Hematoxylin QS (Cat#3404); ABC-VECTASTAIN Standard Kit (Cat#PK-4000) and DAB Peroxidase Substrate Kit, 3,3′-diaminobenzidine (Cat#SK-4100); VECTASTAIN-ABC-AP Standard Kit (Cat# AK-5000), and Vector Red AP Substrate (Cat#SK-5100); Vectashield with DAPI (Cat#H-1200). Permount mounting medium was from Fisher (Waltham, MA, USA; Cat# SP15-100).
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