[A purified protein extract derived from the bacterium Mycobacterium tuberculosis. Intradermally-administered, PPD stimulates preprimed CD4 T cells in immunologically competent subjects previously exposed to the bacterium Mycobacterium tuberculosis; these activated CD4 T cells secrete various cytokines that attract granulocytes, monocytes, and macrophages in an inflammatory response known as delayed hypersensitivity. (NCI04) ( NCI )]
UMLS (NCI) C0034131 - Organic Chemical
- Immunologic Factor
- Indicator, Reagent, or Diagnostic Aid
Relation/PAR: [DX300] DIAGNOSTIC ANTIGENS
Unclassified Ingredients
TO BE DELETED INGREDIENT PREPARATIONS
Relation/CHD: Purified Protein Derivative of Tuberculin 2500 UNT/ML
Purified Protein Derivative of Tuberculin 50 UNT/ML
Purified Protein Derivative of Tuberculin 1 UNT/ML
Purified Protein Derivative of Tuberculin 1 UNT
TUBERCULIN,PURIFIED PROTEIN DERIVATIVE 5 UNT
TUBERCULIN,PURIFIED PROTEIN DERIVATIVE 250 UNT
TUBERCULIN,PURIFIED PROTEINDERIVATIVE 10 UNT/ML
TUBERCULIN,PURIFIED PROTEINDERIVATIVE 50 UNT/ML