The overall objective of this proposal is to investigate the structure, function, and control of expression of a number of molecules expressed on human lymphocytes and their subsets. We will investigate the molecular basis for structural and serological variations in the leukocyte differentiation antigen T200 or common leukocyte antigen between different leukocyte and lymphocyte types. We propose to isolate a membrane lectin expressed on lymphoblastoid cell lines and activated T-lymphocytes and study it's role in cell-cell interaction T-cell mediated killing. We propose to investigate the mechanisms of control of the expression of T200, HLA-DR antigens, and T-cell class and subclass specific membrane antigens by determining whether or not they are expressed, and the molecular basis for their expression on somatic cell hybrids. These will be produced by fusion of HGPRT-negative, ouabain-resistant T-lymphoblastoid lines (LCL) with other T-LCL expressing different surface antigens, with B-LCL, and with peripheral blood T and B-cells, resting or activated by mitogens and in the mixed lymphocyte response (MLR). We will attempt to generate cytotoxic hybrids of T-LCL with MLR-activated T-cells, determine their specificity for HLA antigens and characterize their antigen receptor. We propose to generate hybrids of T-LCL with MLR-activated cells which secrete non-immunoglobulin molecules which will bind to the HLA-A, B and C antigens of either the responder or the donor, to structurally characterize these molecules, and to determine their reactivity with human alloantisera recognizing Ia-like antigens. These hybrids and their products will be assayed for their ability to enhance or suppress the MLR and for the specificity of their effects in terms of the major histocompatibility complex antigens of both the responder and stimulator.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Project (R01)
Project #
5R01AI015775-07
Application #
3126420
Study Section
Immunobiology Study Section (IMB)
Project Start
1979-05-01
Project End
1987-04-30
Budget Start
1985-05-01
Budget End
1986-04-30
Support Year
7
Fiscal Year
1985
Total Cost
Indirect Cost
Name
Duke University
Department
Type
Schools of Medicine
DUNS #
071723621
City
Durham
State
NC
Country
United States
Zip Code
27705
Anderson, K S; Cresswell, P (1994) A role for calnexin (IP90) in the assembly of class II MHC molecules. EMBO J 13:675-82
Anderson, K S; Alexander, J; Wei, M et al. (1993) Intracellular transport of class I MHC molecules in antigen processing mutant cell lines. J Immunol 151:3407-19
Crumpacker, D B; Alexander, J; Cresswell, P et al. (1992) Role of endogenous peptides in murine allogenic cytotoxic T cell responses assessed using transfectants of the antigen-processing mutant 174xCEM.T2. J Immunol 148:3004-11
Click, E M; Anderson, K S; Androlewicz, M J et al. (1992) Transport and expression of class I MHC glycoproteins in an antigen-processing mutant cell line. Cold Spring Harb Symp Quant Biol 57:571-7
Storkus, W J; Salter, R D; Cresswell, P et al. (1992) Peptide-induced modulation of target cell sensitivity to natural killing. J Immunol 149:1185-90
Storkus, W J; Salter, R D; Alexander, J et al. (1991) Class I-induced resistance to natural killing: identification of nonpermissive residues in HLA-A2. Proc Natl Acad Sci U S A 88:5989-92
Koppelman, B; Cresswell, P (1990) Rapid nonlysosomal degradation of assembled HLA class II glycoproteins incorporating a mutant DR alpha-chain. J Immunol 145:2730-6
Alexander, J; Payne, J A; Shigekawa, B et al. (1990) The transport of class I major histocompatibility complex antigens is determined by sequences in the alpha 1 and alpha 2 protein domains. Immunogenetics 31:169-78
Liegler, T; Alexander, J; Cresswell, P et al. (1990) An analysis of insulin receptor expression and binding on MHC class I positive and negative human lymphoblastoid cells. J Immunol 145:1788-93
Storkus, W J; Alexander, J; Payne, J A et al. (1989) The alpha 1/alpha 2 domains of class I HLA molecules confer resistance to natural killing. J Immunol 143:3853-7

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