Cytoplasmic Immunoglobulin
Cytoplasmic Immunoglobulin - Related Videos
04:48
A Paper-Based Immunoassay for the Detection of Immunoglobulin G
0 Views •
2025
The video demonstrates a paper-based immunoassay, involving amine-functionalized cellulose discs cross-linked with glutaraldehyde. Covalent immobilization of IgG-Fc-specific capture antibodies, followed by the introduction of immunoglobulin G and horseradish peroxidase-conjugated detection antibodies, results in a color change confirming the presence of immunoglobulin G.
01:16
Cytoplasm
0 Views •
2026
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.Protein Folding and MisfoldingThe cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein core...
01:24
Cytoplasm
0 Views •
2023
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules. Protein Folding and Misfolding The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
01:24
Cytoplasm
0 Views •
2023
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules. Protein Folding and Misfolding The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
03:31
A Microfluidic Cartridge-Based Detection System for Allergen-Specific Immunoglobulin E
0 Views •
2025
This video demonstrates a protocol for detecting serum-specific immunoglobulin E using a microfluidic cartridge-based chemiluminescence system. Serum IgEs interact with distinct allergens immobilized in the reaction zone of the cartridge, which are subsequently detected with peroxidase-conjugated anti-IgE antibodies and a chemiluminescent substrate, allowing simultaneous detection of multiple allergen-specific IgEs.
FAQs
During B-cell development, immunoglobulin heavy and light chains are synthesized in the endoplasmic reticulum. They assemble into complete antibody molecules and enter the secretory pathway, where transport supports eventual release. Before secretion occurs, some assembled or newly produced immunoglobulin remains detectable within the cytoplasm, providing information about antibody production at an intracellular stage.
Its presence indicates that a cell has synthesized immunoglobulin components and can therefore help distinguish stages of B-cell development. Because production and retention occur during the transition toward antibody secretion, the finding supplies developmental information beyond simply identifying a cell as belonging to the B-cell lineage. This supports assessment of maturation patterns in clinical specimens.
Retained immunoglobulin reflects antibody production within the cell before material has been released into the extracellular space. That distinction allows laboratory analysis to examine intracellular synthesis and accumulation rather than only the consequences of secretion. In medicine, this intracellular perspective can help characterize cells whose developmental or neoplastic state is being investigated.
Detection generally requires intracellular immunostaining because the target is located within the cell. Cells are first permeabilized so antibodies used for staining can access the cytoplasmic contents, after which the retained immunoglobulin is identified. This approach makes the intracellular signal measurable in individual cells and supports analysis of B-cell populations.
Flow cytometry can evaluate intracellular immunoglobulin after cell permeabilization and immunostaining, allowing signal detection across individual cells in a sample. The resulting measurements help identify populations that contain cytoplasmic antibody protein and compare their presence within the examined cell population. This makes the technique useful for assessing B-cell composition and maturation.
Clinicians and laboratory investigators use cytoplasmic immunoglobulin measurements to classify B-cell populations, assess their maturation, and characterize lymphoid disorders. The information is particularly relevant when evaluating plasma-cell neoplasms and other B-cell neoplasms, where intracellular antibody production can contribute to understanding the cellular phenotype. Results complement broader laboratory assessment of lymphoid disease.