Alpha Fetoprotein Antibody Staining Protocol for Immunohistochemistry

 

Description: Alpha fetoprotein (AFP) is an oncofoetal antigen of 70kD found in body fluids. AFP is expressed in foetal liver, but is not present in adult tissues.

 

Primary Antibody

Name: alpha Fetoprotein Antibody

Clone: C3, Mouse Anti-Human

Supplier: Novocastra Labs

Catalog Number: NCL-AFP

Dilution: 1:50

Incubation Time/Temp: 60 min/room temperature

Antigen Retrieval

Device: Steamer

Buffer/pH value: Citrate buffer/pH 6.0

Heat/Cool Temperature: 95-100 ºC/room temperature

Heat/Cool Time: 20 minutes/20 minutes

Detection Methods

Standard Method: ABC Method or LSAB Method

Enhanced Method: Polymeric Methods

Chromogen Substrate

Reagent: DAB

Incubation Time/Temperature: 1-3 minutes/room temperature

Counterstain

Reagent: Gill's Hematoxylin or Mayer's Hematoxylin

Staining Time: 30 seconds

Results:

Staining Pattern: Cytoplasmic

Images: Search image

Additional Information:

Tissue Type: Foetal liver

Fixation: Formalin-fixed paraffin sections, or acetone fixed frozen sections

Positive Control: Foetal iver

Negative Control: Omit primary antibody, isotype control, absorption control

Blocking: 2-5% normal serum to reduce unspecific background staining; 0.5-3% H2O2 to block endogenous peroxidase activity; avidin/biotin to block endogenous biotin activity if necessary

Notes:

There is no need to perform antigen retrieval on acetone fixed frozen sections

 

References: