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A factor potentiating antibody formation spontaneously produced by splenic T cells of MRL/MP-lpr/lpr mice
Splenocytes of MRL/l mice, one of the murine lupus strains, were found to produce a factor(s) which potentiates antibody formation. This factor was produced by splenocytes of young MRL/l mice and cell-sorting experiments by flow cytometry indicated that Thy 1.2+ cells were producing the factor. The approximate molecular weight of the factor was found to be 35,000-45,000 daltons and its pI value was between 3.3 and 3.8. It was also demonstrated that this factor is distinct from interferons, interleukins (IL-1, IL-2, IL-3) and B cell differentiation factors.
Splenocytes of MRL/l mice, one of the murine lupus strains, were found to produce a factor(s) which potentiates antibody formation. This factor was produced by splenocytes of young MRL/l mice and cell-sorting experiments by flow cytometry indicated that Thy 1.2+ cells were producing the factor. The approximate molecular weight of the factor was found to be 35,000-45,000 daltons and its pI value was between 3.3 and 3.8. It was also demonstrated that this factor is distinct from interferons, interleukins (IL-1, IL-2, IL-3) and B cell differentiation factors.