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. 1977 Jun;87(3):667–684.

Virus-induced lysosomal enzyme dissolution of nasal turbinate cartilage.

W W Schultz, F B Bang
PMCID: PMC2032135  PMID: 194485

Abstract

The mechanism of laryngotracheitis virus-induced dissolution of chick nasal turbinate cartilage was studied by lysosomal enzyme histochemistry. Five-day-old chicks were infected by intranasal instillation, and changes in lysosomal enzyme distribution were followed at daily intervals through the tissue regeneration stage, Day 28. In the mucosa the lysosomes were activated beginning on Day 1, and glycerol acid phosphatase and a diffuse form of beta-glucuronidase were released concomitant with tissue cell destruction. In the chondrocytes (where glycerol acid phosphatase was absent), beginning on Day 2, particulate (lysosomal) beta-glucuronidase decreased as diffuse beta-glucuronidase increased and extended out into the matrix. The cartilage lost its metachromatic staining properties and became soft and pliable. Regeneration of the mucosa started on Day 6 and gradual reappearance of metachromatic staining of the cartilage began on Day 8 with considerable recovery of original turbinate structure by Day 12. A lysosomal membrane labilizer, vitamin A, exacerbated the cartilage pathology, whereas a stabilizer, cortisone, retarded it.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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