TY - JOUR
T1 - Estimates of the precursor frequency of cytotoxic T lymphocytes against antigens controlled by defined regions of the H-2 gene complex
T2 - Comparison of the effect of H-2 differences due to intra-H-2 recombination VS mutation
AU - Pimsler, M.
AU - Forman, J.
PY - 1978/12/1
Y1 - 1978/12/1
N2 - Lymph node cells were sensitized in a limiting dilution assay against B10.D2 (H-2(d)) and the frequency of cytoxic T lymphocyte (CTL.P) precursors was determined. A mean CTL.P frequency of 0.047% was observed when responding strains differed from the stimulators at the entire H-2 gene complex. When intra-H-2 recombinant strains were sensitized against B10.D2, lower frequencies of CTL.P were observed. Responding strains that differed from the stimulators at the H-2K-end only had 2- to 6-fold more CTL.P compared to strains sensitized against the D-end only. In order to study the CTL.P frequency against minor antigenic differences, the B10.D2 (M504-H-2(da)) mutant strain, which carries a mutation with an antigenic gain-loss in the D-region of H-2(d), was examined. This mutant showed an identical CTL.P frequency against H-2(d) as H2D-end recombinant strains. Therefore, this H-2 mutant (M504) has either undergone extensive mutation or the qualitative nature of the antigenic loss in this strain results in a high CTL.P frequency against the strain of origin.
AB - Lymph node cells were sensitized in a limiting dilution assay against B10.D2 (H-2(d)) and the frequency of cytoxic T lymphocyte (CTL.P) precursors was determined. A mean CTL.P frequency of 0.047% was observed when responding strains differed from the stimulators at the entire H-2 gene complex. When intra-H-2 recombinant strains were sensitized against B10.D2, lower frequencies of CTL.P were observed. Responding strains that differed from the stimulators at the H-2K-end only had 2- to 6-fold more CTL.P compared to strains sensitized against the D-end only. In order to study the CTL.P frequency against minor antigenic differences, the B10.D2 (M504-H-2(da)) mutant strain, which carries a mutation with an antigenic gain-loss in the D-region of H-2(d), was examined. This mutant showed an identical CTL.P frequency against H-2(d) as H2D-end recombinant strains. Therefore, this H-2 mutant (M504) has either undergone extensive mutation or the qualitative nature of the antigenic loss in this strain results in a high CTL.P frequency against the strain of origin.
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M3 - Article
C2 - 100555
AN - SCOPUS:0018072251
SN - 0022-1767
VL - 121
SP - 1302
EP - 1305
JO - Journal of Immunology
JF - Journal of Immunology
IS - 4
ER -