Related Experiment Video
Updated: Jul 10, 2026
07:51
Synovial Fluid Analysis to Identify Osteoarthritis
Published on: October 20, 2022
Single cell analysis of synovial tissue B-cells
1Memorial Sloan Kettering Cancer Center, Department of Immunology, New York, NY, USA.
Methods in Molecular Medicine
|November 7, 2007
Summary
Researchers developed a novel method to analyze B-cells in rheumatoid arthritis (RA) synovial tissue. This technique helps understand RA pathogenesis by identifying specific B-cell responses and their targets.
Area of Science:
- Immunology
- Molecular Biology
- Rheumatology
Background:
- Mononuclear cells form organized lymphoid structures in rheumatoid arthritis (RA) synovial tissue.
- B-cells within these structures become activated and may differentiate into plasma cells.
- Understanding activated B-cell specificity is crucial for RA pathogenesis research.
Purpose of the Study:
- To describe a combined histological and molecular technique for analyzing single B-cells in RA synovial tissue.
- To enable the determination of B-cell specificity in the context of chronic inflammation.
Main Methods:
- Immunohistochemical staining to identify activated B-cells in synovial tissue sections.
- Micromanipulator isolation of identified B-cells.
- Amplification, cloning, and sequencing of rearranged immunoglobulin (Ig) genes from single B-cells.
- Analysis of V(D)J gene segments and somatic mutations to establish clonal relationships.
- Generation of recombinant antibodies from isolated Ig genes.
Main Results:
- A method combining histological and single-cell molecular analysis of B-cells in RA synovial tissue was established.
- Clonal relationships between B-cells were identified using V(D)J gene segment and mutation pattern analysis.
- Recombinant antibodies were generated to potentially identify specific antigens driving B-cell activation.
Conclusions:
- The described technique allows for detailed analysis of the B-cell V-gene repertoire in inflamed synovial tissue.
- This approach facilitates the identification of clonal B-cell populations and their specificities in rheumatoid arthritis.
- The generated recombinant antibodies can be used to investigate the antigens involved in B-cell activation in RA pathogenesis.
Related Concept Videos
01:16Structural Joints: Synovial Joints
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
01:22Connective Tissue Cell Types
Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...