Cancer therapeutic intervention, Characteristic of Ideal biomarker expression should

Cancer is a
Group of disease involving abnormal cell growth with the potential to
invade or spread to other parts of the body, Biomarker are Measured and evaluated as indicator of normal
biological process, pathogenic process, or pharmacological response to a
therapeutic intervention, Characteristic of Ideal biomarker expression should
significantly increase in disease condition  Readily quantifiable in clinical sample It
should be economically viable Tumor marker is a Biochemical substances produced
by cancer cell or by the healthy cell It’s a Substances  found at higher level than normal level  in cancerous condition, which differentiate
the normal cell from cancer cells  Tumor
marker seen in Blood circulation, Body
cavity fluids  Cell membrane ,Cell
cytoplasm Tumor marker  classification
Tumor Specific Antigens  Specific
for single individual tumor, present only in tumor cells Ex:CEA,CA19-9,CA125
Tumor-Associated Antigens are Found with different tumor of same tissue
type Present on tumor cells and some normal cells Expressed at abnormal
concentration when presence of cancer Ex: Prostate specific antigen, Beta HCG,AFP
L3,thryglobin ,Enzyme 1st group identified as a biomarker  Hormone used to detect and monitor the
cancer Onco-fetal protein AFP,CEA,PSA, using anti-sera against cancer tissue cell
surface antigen are CA 125,CA15-3,CA19-9 Blood group Ag using monoclonal
antibody detect cancer cell according to site tumor marker classification as Biochemical
/serological marker-detected in blood or body fluids, histochemical/ tissue
marker- in tissue by immunological test diagnostic marker, prognostic marker/
predictive marker, therapeutic marker clinical use Screening, diagnosis, prognostic predictor  clinical
staging of the cancerous condition
for monitoring during treatment early
not be very costly, sensitivity, specificity, accuracy, precision, simple to


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