Characterization of DNA excreted from phytohemagglutinin-stimulated lymphocytes.
نویسندگان
چکیده
منابع مشابه
Characterization of DNA excreted from phytohemagglutinin-stimulated lymphocytes
The DNA released into the culture medium after phytohemagglutinin (PHA) stimulation of human peripheral blood lymphocytes has been purified and characterized. It is double stranded, sediments at 7-8S in alkaline sucrose, and has a Tm determined optically and by thermal elution from hydroxyapatite that is substantially lower than that found for lymphocyte cell DNA. Media DNA contains a major com...
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We studied the synthesis of excreted DNA sequences and their release from phytohemagglutinin-stimulated human peripheral blood lymphocytes under conditions permitting optimal cell growth. Cells were labeled by constant exposure to low specific activity [3H]thymidine. Excreted DNA sequences were synthesized during the period of logarithmic cell growth and moved slowly from the high molecular wei...
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By JEROME I. BRODY AND HENRY D. SOLTYS T HE PUBPOSE of this study was to delineate the durability and persistence of immunologic recall in the normal peripheral blood lymphocyte using methods which might reflect the importance of the manner by which imniunologic information is acquired. This was done in the present investigation with the technic of bacterial adherence,”2 in which circumferentia...
متن کاملA method for counting phytohemagglutinin-stimulated lymphocytes.
I T HAS BEEN SHOWN that peripheral i)lood lynlphocvtes undergo trainsformation and mitosis in vitro when cultured in the presence of plwtohemagglutinin ( PHA).’4 Little information has been reported on the numl)er of lymphocytes which survive and transform during the culturing interval. It has been very difficult to enumerate lymphocytes in cultures containing PFIA I)ecause the agglutinated ery...
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The association of a human genetic deficiency of adenosine deaminase activity with combined immunodeficiency prompted a study of the effects of adenosine and of inhibition of adenosine deaminase activity on human lymphocyte transformation and a detailed study of adenosine metabolism throughout phytohemagglutinin-induced blastogenesis. The adenosine deaminase inhibitor, coformycin, at a concentr...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1976
ISSN: 0022-1007,1540-9538
DOI: 10.1084/jem.143.5.1249