Description

Cytokeratin 19 fragment (Cyfra 21-1) is a kind of lung cancer tumor markers. It belongs to the intermediate filament protein family with a molecular weight of about 40kDa and mainly exists in the cytoplasm of tumor cells originating from epithelial cells such as esophageal cancer and lung cancer. Cyfra 21-1 has important clinical application value in the diagnosis, disease detection and efficacy evaluation of various types of lung cancer^[1].

HKIG currently provides two paired monoclonal antibodies for Cyfra 21-1(product number: 1009101,1009201).

Example of Cyfra 21-1 standard curve (CLIA)

Capture antibody: 1009101, Detection antibody: 1009201. R2>0.99 LoB<0.1ng/mL

Reference：【1】J Transl Med. 2019 Mar 8;17(1):74.