Inhibitors of human leukocytes elastase are known to be useful in the treatment of a wide variety of antiinflammatory and antidegenerative diseases. In inhibiting elastase, the therapeutic agents are shown to form a characteristic stable complex with the enzyme. In the radioimmunoassay disclosed herein, the inhibitor-enzyme complex is advantageously hydrolyzed and specific product(s) of the hydrolysis are measured utilizing polyclonal antibodies capable of binding to one or more haptens of formula II ##STR1## wherein M is allyl or n-propyl, Z.sub.1 is (a) 5-benzofuranyl or (b) substituted phenyl wherein the substituent is methyl or ethyloxy. The assays utilizing these antibodies are useful in a clinical setting, for determining appropriate dosage and assessing the effectiveness of treatment.
人类白细胞弹性蛋白酶抑制剂已被证明在治疗各种抗炎和抗变性疾病中非常有用。通过抑制
弹性蛋白酶,治疗剂被证明与酶形成特征稳定的复合物。在这里披露的放射免疫测定中,
抑制剂-酶复合物被有利地
水解,
水解的特定产物利用能够结合到式II的一个或多个半抱体的多克隆
抗体进行测量,其中M是烯丙基或正丙基,Z.sub.1是(a)
5-苯并呋喃基或(b)取代苯基,其中取代基是甲基或乙氧基。利用这些
抗体的测定在临床环境中非常有用,可用于确定适当的剂量和评估治疗的有效性。