Studies on the biology of fish bone. III. Ultrastructure of osteogenesis and resorption in osteocytic (cellular) and anosteocytic (acellular) bones

Roy E Weiss, N. Watabe

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

The comparative ultrastructure of fish bone osteogenesis and resorption induced by scale removal was described in the osteocytic (cellular-boned)Carassius auratus and the anosteocytic (acellular-boned)Tilapia macrocephala. Osteocytes, present in osteocytic bone, were lacking in anosteocytic bone. In osteocytic bone the osteoblast secreted a collagenous preosseous matrix in which it became enmeshed and then was termed a preosteocyte. When the preosseous matrix mineralized, the preosteocyte was termed an osteocyte and was completely surrounded by bone. In anosteocytic bone the osteoblasts receded from the mineralizing front and never became trapped as osteocytes. During resorption, types A and B resorptive cells, present in both bone types, invaded the matrix and demineralized the osseous zone. These cells were characterized by large amounts of granular endoplasmic reticulum and intracellular inclusions containing crystal-like material. Although functionally similar to mammalian osteoclasts, these cells lacked a characteristic ruffled border and were not multinucleated. The osteocytes of cellular bone did not appear to be involved during demineralization.

Original languageEnglish (US)
Pages (from-to)43-56
Number of pages14
JournalCalcified Tissue International
Volume28
Issue number1
DOIs
StatePublished - Dec 1979
Externally publishedYes

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Osteogenesis
Osteocytes
Fishes
Bone and Bones
Osteoblasts
Tilapia
Goldfish
Bone Matrix
Rough Endoplasmic Reticulum
Osteoclasts
Bone Resorption

Keywords

  • Bone resorption
  • Fish bone
  • Osteocytes
  • Osteogenesis
  • Ultrastructure

ASJC Scopus subject areas

  • Endocrinology

Cite this

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