The Transforming Growth Factor Beta-1 (Host Cell Protein) ELISA Kit – CHO (Chinese Hamster Ovary) is a highly sensitive immunoassay designed to detect Transforming Growth Factor Beta-1 (TGF-β1), a multifunctional cytokine involved in cell growth regulation, immune signaling, differentiation, and apoptosis. As a residual host cell protein released from CHO cells during biologics manufacturing, TGF-β1 may pose risks due to its potent biological activity and potential impact on product safety if not adequately removed during downstream purification.This assay enables precise quantification of residual TGF-β1 in bioprocess samples and supports manufacturers seeking greater visibility into biologically active host cell protein contaminants.