Neutrophil defect associated with malignant infantile osteopetrosis

Clair J. Beard, Lyndon Key, Peter E. Newburger, R. Alan B Ezekowitz, Robert Arceci, Barbara Miller, Philip Proto, Thomas Ryan, Constantine Anast, Elizabeth R. Simons

Research output: Contribution to journalArticle

Abstract

We studied the phagocytes from three infants with malignant osteopetrosis and from their families in an attempt to define further the phagocyte abnormalities associated with this disorder. The rapid membrane potential depolarization in response to the soluble stimuli formylmethlonylleucylphenylailanine (FMLP) and phorbol myristate acetate (PMA) served as a measure of neutrophil activation, with 3,3-dipentyloxacarbocyanine (dlOC5[3]) used as the probe. A fluorescence-activated cell sorter (FACS) allowed us to use small volumes of blood in a new quantitative evaluation of neutrophil response. The neutrophils from the infants with malignant osteopetrosis were very minimally activated with either stimulus, as demonstrated by incomplete membrane potential depolarization (10% to 15% of normal controls). This finding Indicates that malignant osteopetrosis is accompanied by a significantly reduced neutrophil response to stimulation. The abnormal activation process was also reflected in the respiratory burst response of the patients' neutrophils and monocytes. Fifty percent to 60% of the infants' neutrophils totally failed to reduce nitro blue tetrazolium dye (NBT), 30% to 40% of the cells showed only slight reduction after PMA or FMLP stimulation, and only 5% to 10% demonstrated normal reduction. Peripheral blood monocytes failed to reduce NBT in 35% to 70% of the cells tested. Similar testing of granulocyte-macrophage colonies grown in vitro from circulating progenitor cells also showed an abnormal distribution of response to PMA, with a majority of colonies showing a decrease or absence of NBT reduction. Thus control of expression of the osteopetrotic defect occurs at or before the progenitor cell level.

Original languageEnglish (US)
Pages (from-to)489-497
Number of pages9
JournalThe Journal of Laboratory and Clinical Medicine
Volume108
Issue number5
StatePublished - 1986
Externally publishedYes

Fingerprint

Osteopetrosis
Tetradecanoylphorbol Acetate
Neutrophils
Coloring Agents
Depolarization
Defects
Blood
Chemical activation
Membranes
Phagocytes
Macrophages
Membrane Potentials
Monocytes
Stem Cells
Fluorescence
Neutrophil Activation
Respiratory Burst
Blood Volume
Granulocytes
Testing

ASJC Scopus subject areas

  • Medicine(all)
  • Pathology and Forensic Medicine

Cite this

Beard, C. J., Key, L., Newburger, P. E., Ezekowitz, R. A. B., Arceci, R., Miller, B., ... Simons, E. R. (1986). Neutrophil defect associated with malignant infantile osteopetrosis. The Journal of Laboratory and Clinical Medicine, 108(5), 489-497.

Neutrophil defect associated with malignant infantile osteopetrosis. / Beard, Clair J.; Key, Lyndon; Newburger, Peter E.; Ezekowitz, R. Alan B; Arceci, Robert; Miller, Barbara; Proto, Philip; Ryan, Thomas; Anast, Constantine; Simons, Elizabeth R.

In: The Journal of Laboratory and Clinical Medicine, Vol. 108, No. 5, 1986, p. 489-497.

Research output: Contribution to journalArticle

Beard, CJ, Key, L, Newburger, PE, Ezekowitz, RAB, Arceci, R, Miller, B, Proto, P, Ryan, T, Anast, C & Simons, ER 1986, 'Neutrophil defect associated with malignant infantile osteopetrosis', The Journal of Laboratory and Clinical Medicine, vol. 108, no. 5, pp. 489-497.
Beard CJ, Key L, Newburger PE, Ezekowitz RAB, Arceci R, Miller B et al. Neutrophil defect associated with malignant infantile osteopetrosis. The Journal of Laboratory and Clinical Medicine. 1986;108(5):489-497.
Beard, Clair J. ; Key, Lyndon ; Newburger, Peter E. ; Ezekowitz, R. Alan B ; Arceci, Robert ; Miller, Barbara ; Proto, Philip ; Ryan, Thomas ; Anast, Constantine ; Simons, Elizabeth R. / Neutrophil defect associated with malignant infantile osteopetrosis. In: The Journal of Laboratory and Clinical Medicine. 1986 ; Vol. 108, No. 5. pp. 489-497.
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