Related Experiment Videos
Hamster DEC-205, its primary structure, tissue and cellular distribution
Kouji Maruyama1, Yasuto Akiyama, Jinyan Cheng
1Growth Factor Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, Japan.
Cancer Letters
|August 15, 2002
Summary
Hamster DEC-205, a dendritic cell marker, shows high conservation with mouse and human forms. This transmembrane C-type lectin mediates antigen uptake, highlighting its crucial immune system role.
Area of Science:
- Immunology
- Cell Biology
Background:
- DEC-205 is a transmembrane C-type lectin and a key marker for dendritic cell lineage.
- Its role in antigen uptake is established in other species.
Purpose of the Study:
- To characterize hamster DEC-205, including its primary structure, tissue distribution, and cellular localization.
- To investigate the functional role of hamster DEC-205 in antigen uptake.
Main Methods:
- Sequence analysis to determine primary structure and conservation.
- Transcript detection in thymus and bone marrow cell cultures.
- Cell membrane localization studies and functional uptake assays using ovalbumin.
Main Results:
- Hamster DEC-205 shares approximately 80% identity with mouse and human DEC-205, indicating high structural conservation.
- DEC-205 transcripts were found in thymus and cultured bone marrow cells, with expression increasing during culture.
- Hamster DEC-205 is located on the cell membrane and facilitates the uptake of ovalbumin.
Conclusions:
- Hamster DEC-205 is a highly conserved molecule across species.
- Its presence in thymus and bone marrow cells suggests a role in immune cell development.
- DEC-205's conserved structure and function in antigen uptake underscore its fundamental importance in the immune system.