Abstract
The mode of action of horse anti-lymphocyte serum (IgG) and its pepsin fragments has been investigated by lymphocyte agglutination tests, cytotoxic tests and the uptake of uridine and thymidine. It is found that its divalent pepsin fragment (F(ab′)2) agglutinates lymphocytes and stimulates the uptake of uridine and thymidine whereas the univalent fragment (Fab′) is inactive in all these tests.
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WOODRUFF, M., REID, B. & JAMES, K. Effect of Antilymphocytic Antibody and Antibody Fragments on Human Lymphocytes in vitro. Nature 215, 591–594 (1967). https://doi.org/10.1038/215591a0
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DOI: https://doi.org/10.1038/215591a0
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