Smad4
Description- It is a useful tool in the diagnosis of pancreatic cancer, juvenile polyposis syndrome, and hereditary hemorrhagic telangiectasia syndrome. Its pattern of reactivity is mostly cytoplasmic but sometimes nuclear expression is also seen in many cell types with highest expression levels in placenta and gastrointestinal tract.
Methodology: Immunohistochemistry
TAT: 3-5 days
Specimen Preparation
Collect - tissue /or cell
Specimen Preparation- formal fix (10 % neutral buffered formalin) and paraffin enter specimen (FFPE specimens square measure needed). shield paraffin block or slides from uncontrolled heat. Transport tissue block or five unstained (3-micron thick sections), charged slides during a tissue transport kit. (Min: a pair of slides). If causing precut slides, don't over heat it.
Storage/Transport Temperature- At temperature or cold. Transport it in cooled instrumentation throughout weather.
Unacceptable conditions- i) Specimens submitted with non-marked/tagged tissue sort square measure rejected.
ii) Depleted specimens aren't tested.
Stability- i) Ambient: Indefinitely;
ii) Refrigerated: Indefinitely;
iii) Frozen: Unacceptable
