Inhibition of rosette formation by antithymocyte globulin |
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| Authors: | Albert T Ichiki I Reid Collmann Takuo Sonoda John A MacGuire Kathy L Wenzel Stephen Krauss |
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| Institution: | (1) The University of Tennessee Memorial Research Center, Center for the Health Sciences/Knoxville, 1924 Alcoa Highway, 37920 Knoxville, Tennessee, USA;(2) Department of Medicine, University of Tennessee Memorial Hospital, USA |
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| Abstract: | Summary The peripheral blood leukocytes from 29 patients with adenocarcinoma of the colon were studied sequentially for the T-cell level, the rosette-inhibition titer of antithymocyte globulin and the blastogenic response to PHA and Con A to evaluate the T-cell immunocompetence. The level of E-rosette-forming cells and the blastogenic response did not reflect the immunocompetence of the T-cell population. Fluctuations in the rosette-inhibition titer of antithymocyte globulin (ATG) were observed; an increased ATG titer indicated an unfavorable clinical course, while a decreased ATG titer was observed with patients who had a favorable clinical course. The rosette-inhibition titer with antithymocyte globulin was observed to be an important indicator of competent T cells in patients with colorectal cancer.Supported by the Physicians' Medical Education and Research Foundation and General Research Supports FundsAbbreviations used that are not spelled out in the text are: AET 2-aminoethylisothiouronium bromide; ATG Antithymocyte globulin; ALG Antilymphocyte globulin; E-RFC Erythrocyte rosette-forming cells; PHA Phytohemagglutinin; Con A Concanavalin A; E Sheep erythrocyte |
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