FITC

FITC Full Name

FITC

FITC Introduction

Fluorescein isothiocyanate (FITC) is a highly sensitive green fluorescent dye widely used in biomedical research, particularly in immunology and cell biology. FITC is chemically reactive, allowing it to covalently attach to proteins, antibodies, and other biomolecules without significantly altering their biological activity. Its strong fluorescence emission in the green spectrum makes it an ideal tool for visualizing and quantifying molecular interactions, cellular structures, and surface markers, especially when combined with flow cytometry or fluorescence microscopy. Researchers rely on FITC for its stability, brightness, and compatibility with multiple labeling experiments, making it a cornerstone in experimental designs that require precise and real-time cellular detection.

In functional applications, FITC-labeled antibodies are extensively used to monitor the activation status of immune cells, detect specific cell surface molecules, and trace molecular pathways. For example, in studies investigating autoimmune diseases such as systemic lupus erythematosus (SLE), FITC-conjugated anti-CD69 antibodies have been employed to measure T cell activation, providing insights into the regulatory roles of Lyn kinase isoforms. Similarly, FITC-labeled anti-CD86 antibodies have been used to assess the maturation of dendritic cells and B cell activation in response to bivalent vaccine antigens. These applications highlight FITC's critical role in evaluating cellular responses, understanding signaling mechanisms, and optimizing immunotherapeutic strategies.

Beyond basic research, FITC is instrumental in studying mechanisms of immunogenic cell death, vaccine efficacy, and lymphocyte subset identification. By enabling quantitative measurement of surface markers such as CD69, CD86, and MHC-II, FITC provides a direct readout of gene activation and cellular function. In cancer immunotherapy research, for instance, FITC-labeled antibodies help detect dendritic cell maturation in response to tumor cell death, offering a window into antigen presentation and T cell priming. The ability to track these processes with high sensitivity and specificity makes FITC an indispensable tool for researchers aiming to elucidate complex immune responses, improve vaccine designs, and explore novel therapeutic interventions.

Alternate Names for FITC

FITC

• 1.Brian BF 4th, et al.; A dominant function of LynB kinase in preventing autoimmunity. Sci Adv. 2022 Apr 22;8(16):eabj5227.
  2.Xu L, et al.; Norcantharidin Induces Immunogenic Cell Death of Bladder Cancer Cells through Promoting Autophagy in Acidic Culture. Int J Mol Sci. 2022, 23(7):3944.