Journal
JOURNAL OF IMMUNOLOGICAL METHODS
Volume 280, Issue 1-2, Pages 25-35Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-1759(03)00079-6
Keywords
MHC tetramer; dissociation; competitor; fab
Categories
Funding
- NIAID NIH HHS [AI42373] Funding Source: Medline
Ask authors/readers for more resources
Relative avidities of antigen-specific T cells for major histocompatibility complex peptide complexes (MHCp) have recently been measured by MHC tetramer dissociation assays, but there is no consensus on the methodologies used for these experiments. While we do not question the conclusions reached in previous studies, in this paper we discuss the caveats that are present in the design of all MHCp tetramer dissociation protocols, and we propose a set of criteria that should be met in the evaluation of appropriate methodologies. We find that it is necessary to use specific reagents to compete with rebinding of the labeled tetramer, but that when either intact anti-MHC antibodies or cold MHC tetramers are used, the dissociation rates are dependent upon the concentrations of the competitor. In contrast, we demonstrate that apparent dissociation rates are independent of the competitor concentration when blocking anti-MHC Fab fragments are used, suggesting that these are the most appropriate reagents to use for tetramer dissociation experiments. (C) 2003 Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available