Technical Articles

This article focuses on the technical principles of pH-sensitive IgG fluorescent labeling reagents, systematically elucidating their molecular mechanism of distinguishing cell surface-bound antibodies from internalized antibodies through pH-dependent fluorescence signal changes. It analyzes the application value of this technology in antibody-drug conjugate (ADC) screening and receptor internalization kinetics studies.

This article focuses on the technical principles of pH-sensitive IgG fluorescent labeling reagents, systematically elucidating the molecular mechanism by which they utilize pH-dependent fluorescence signal changes to monitor antibody internalization processes, and analyzing their application value in antibody-drug conjugate screening and internalization kinetics research.

This article systematically elaborates on the criticality of evaluating antibody internalization efficiency in the research and development of antibody-drug conjugates (ADCs), analyzes the principles and limitations of existing detection methods, and highlights the unique mechanism and technical advantages of DT3C recombinant protein in assessing internalization efficiency through the catalytic domain of diphtheria toxin-mediated cytotoxicity.

This article systematically elaborates on the discovery history, molecular genetic basis, and unique clinical manifestations of coagulation factor XI deficiency (hemophilia C), analyzing the pathological puzzle of its lack of correlation between bleeding tendency and FXI levels as an autosomal recessive genetic disorder.

This article systematically elaborates on the fundamental principles and advantages of targeted protein degradation (TPD) technology, explains the mechanism of action of PROTAC molecules, and analyzes the biological significance of CDK6 as an anti-tumor target as well as the central role of CRBN in PROTAC design.

This article focuses on the central role of CRBN (Cereblon) ligands in the field of targeted protein degradation, systematically elaborating their advantages as E3 ligase ligands in the design of PROTACs and molecular glues, and analyzing the chemical space advantages of CRBN-based PROTACs in oral absorption.

This article systematically elaborates on the molecular structure of activin receptor type IIB (ActRIIB) as a key receptor in the TGF-β superfamily, its signal transduction mechanisms, and its core functions in muscle growth and metabolic regulation, while analyzing its potential as a drug target in disease areas and clinical development pathways.

This article systematically elaborates on the structural characteristics, signal transduction mechanisms, and pathological significance of ActRIIA (activin type IIA receptor) as a key receptor in the TGF-β superfamily, analyzing its potential as a drug target in various diseases.

Based on the fundamental principles of chimeric antigen receptor T-cell (CAR-T) therapy, this article systematically elaborates on the challenges of antigen escape faced by single-target CAR-T in B-cell malignancies. It analyzes the complementary expression patterns and clinical evidence of CD19 and CD22 as targeting antigens for B-cell lineage tumors, and explores the theoretical basis and clinical translation prospects of the CD19/CD22 dual-targeting strategy in overcoming drug resistance and prolonging disease control duration.

This article systematically elaborates on the molecular structural characteristics of guanylate cyclase C (GUCY2C) as an intestine-specific transmembrane receptor, its dual role as a tumor suppressor and biomarker in the development and progression of colorectal cancer, its specific overexpression pattern in metastatic colorectal cancer, and its clinical translational progress as a target for immunotherapies such as CAR-T. Additionally, it introduces the application value of fluorescently labeled recombinant proteins in detection.