PMID: 6971906May 1, 1981Paper

E-rosette inhibitory factor in sera from patients with mycosis fungoides

The Journal of Investigative Dermatology
H YambeK Jimbow

Abstract

Peripheral blood lymphocytes from some of patients with mycosis fungoides disease showed decreased ability to form rosettes with sheep erythrocytes. This decreased percentage of E-rosette forming cells could be normalized when those cells were incubated in culture for 20 hr. Since these data led us to considering a possible inhibitory factor present in patients' sera, we tested their ability to inhibit E-rosetting by T lymphocytes from normal donors, and found that sera from mycosis fungoides patients with low levels of E-rosetting blood lymphocytes showed greater inhibitory effect on E-rosette formation by normal T cells when compared to those either from normal donors or from mycosis patients who had almost normal levels of E-rosetting blood lymphocyte number. The E-rosette inhibitory factor was sensitive to 2-mercaptoethanol treatment and was copurified with serum IgM by ammonium sulfate precipitation and by sequential gel filtrations, suggesting that it might be an anti-T lymphocyte antibody naturally occurring during the disease process.

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