Spectrum of function of neutrophils from carriers of sex-linked chronic granulomatous disease.

The Journal of Pediatrics
J E RepineB Holmes

Abstract

Bactericidal and metabolic activities were compared for polymorphonuclear leukocytes from normal controls, patients with sex-linked chronic granulomatous disease, five obligate carriers, and six potential carriers of CGD. Bacteria surviving at one hour were quantitated in a standardized assay which employed 1.25 Staphylococcus aureus per neutrophil. Heat-killed bacteria or a chemical agent, phorbol myristate acetate, were used to stimulate increases in utilization of oxygen, oxidation of [1--14C] glucose, and reduction of neotetrazolium chloride by PMN. The results demonstrate that PMN from the individual obligate carriers of CGD have a broad spectrum of functional capabilities. Neutrophils from one obligate carrier performed in the above in vitro tests and others on a par with normal control cells, whereas the PMN of others displayed deficiencies nearly as profound as those of the affected CGD patients. The observations parallel the broad range of phenotypic expression observed in heterozygotic carriers of other sex-linked recessive disorders as a result of random inactivation of the X chromosome. Although predictable from the current concept of random X inactivation, the spectrum has not been previously demonstrated for carri...Continue Reading

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