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  • Title: Reciprocal relationship between erythrocyte ATP and deoxy-ATP levels in inherited ADA deficiency.
    Author: Simmonds HA, Levinsky RJ, Perrett D, Webster DR.
    Journal: Biochem Pharmacol; 1982 Mar 15; 31(6):947-51. PubMed ID: 7082375.
    Abstract:
    A reciprocal relationship between erythrocyte ATP and deoxy-ATP levels has been noted in an immunodeficient child with adenosine deaminase (ADA) deficiency during therapy with red cell transfusions. The sum of red cell ATP plus deoxy-ATP equalled the normal complement of ATP prior to any form of therapy. dATP, dADP and dAMP levels were found in the same ratio (10:1:0.1) as the adenine nucleotides ATP, ADP and AMP. Red cell ATP levels were low, not high or normal as found by others in ADA deficiency, but no deoxyadenosine nucleotides could be found in peripheral blood mononuclear cells. Erythrocyte ATP depletion has recently been identified as a serious consequence of anti-leukaemic therapy with ADA inhibitors; it may thus be an important but hitherto unrecognised contributing factor in the clinical expression of inherited ADA deficiency.
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