Tislelizumab

Specification

• Cat#: THA-0121
• Product Name: Tislelizumab
• Description: Tislelizumab is an IgG4 variant monoclonal antibody against PD-1 indicated for the treatment of unresectable, locally advanced or metastatic esophageal squamous cell carcinoma
• Sequences: SUBUNIT_1: QVQLQESGPGLVKPSETLSLTCTVSGFSLTSYGVHWIRQPPGKGLEWIGVIYADGSTNYNPSLKSRVTISKDTSKNQVSLKLSSVTAADTAVYYCARAYGNYWYIDVWGQGTTVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPPVAGGPSVFLFPPKPKDTLMISRTPEVTCVVVAVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVVHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPSQEEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK SUBUNIT_2: QVQLQESGPGLVKPSETLSLTCTVSGFSLTSYGVHWIRQPPGKGLEWIGVIYADGSTNYNPSLKSRVTISKDTSKNQVSLKLSSVTAADTAVYYCARAYGNYWYIDVWGQGTTVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVESKYGPPCPPCPAPPVAGGPSVFLFPPKPKDTLMISRTPEVTCVVVAVSQEDPEVQFNWYVDGVEVHNAKTKPREEQFNSTYRVVSVLTVVHQDWLNGKEYKCKVSNKGLPSSIEKTISKAKGQPREPQVYTLPPSQEEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQEGNVFSCSVMHEALHNHYTQKSLSLSLGK SUBUNIT_3: DIVMTQSPDSLAVSLGERATINCKSSESVSNDVAWYQQKPGQPPKLLINYAFHRFTGVPDRFSGSGYGTDFTLTISSLQAEDVAVYYCHQAYSSPYTFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC SUBUNIT_4: DIVMTQSPDSLAVSLGERATINCKSSESVSNDVAWYQQKPGQPPKLLINYAFHRFTGVPDRFSGSGYGTDFTLTISSLQAEDVAVYYCHQAYSSPYTFGQGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
• Molecular Weight: Not Available
• Introduction: Tislelizumab is a humanized monoclonal IgG4 antibody against programmed death receptor-1 (PD-1). It was engineered to have a nullified Fc portion, thus minimizing binding to FcγR on macrophages and limiting treatment resistance via antibody-dependent phagocytosis. By blocking PD-L1/PD-L2–mediated cell signaling, tislelizumab restores T-cell function through cytokine production, resulting in immune-mediated antitumor responses. Tislelizumab is generally well tolerated with manageable and mild-to-moderate adverse effects. On September 25, 2023, tislelizumab gained EMA approval as a monotherapy for adults with esophageal cancer under the brand name TEVIMBRA. This approval was based on positive results demonstrated in the RATIONALE 302 study, where an 8.6-month median overall survival rate was observed for tislelizumab treatment compared to 6.3-month for chemotherapy. Tislelizumab was also approved by the FDA on March 14, 2024.
• Purity: >99% by SDS-Page and HPLC analysis
• Formula: Not Available
• Appearance: Liquid

Pharmaceutical Information

• Pharmacodynamics: Tislelizumab decreased tumour growth in xenograft models and a human PD-1 transgenic mouse model.
• Targets: Programmed cell death protein 1