» Articles » PMID: 6871762

Ultrastructural Cytochemistry of Complex Carbohydrates in Osteoblasts, Osteoid, and Bone Matrix

Overview
Specialty Pathology
Date 1983 May 1
PMID 6871762
Citations 9
Authors
Affiliations
Soon will be listed here.
Abstract

Glycosaminoglycans (GAGs) and glycoproteins are essential components for osteogenesis. We have examined rat osteoblasts, osteoid, transitional zone, and fully calcified bone matrix, utilizing Spicer's high-iron diaminethiocarbohydrazide-silver protein (HID-TCH-SP) method for sulfated glycoconjugates and Thiéry's periodate-TCH-SP (PA-TCH-SP) method for vicinal glycol-containing glycoconjugates. HID-TCH-SP stained cytoplasmic granules of osteoblasts. Stain deposits in the extracellular matrix were observed in decreasing amounts in osteoid, the transitional zone, and fully calcified bone matrix. Enzyme digestion with testicular hyaluronidase removed most HID-TCH-SP stain deposits. PA-TCH-SP staining was observed with increasing intensity in rough endoplasmic reticulum, Golgi saccules, and cytoplasmic granules. Collagen fibrils in osteoid were weakly stained with PA-TCH-SP, and their staining appeared even weaker in fully calcified bone matrix. In contrast, collagen fibrils in calcified cartilage stained intensely with the PA-TCH-SP method. Focal circular profiles (0.1-0.5 mumol in diameter), which lacked collagen fibrils but reacted moderately with PA-TCH-SP, were frequently seen in the transitional zone and fully calcified bone matrix, but were only occasionally present in osteoid. The presence of testicular hyaluronidase-resistant GAG and acid phosphatase in these focal areas suggests that they represent sites of GAG degradation. The eventual loss of HID-TCH-SP staining in the bone matrix suggests that removal of sulfated glycoconjugates may be a requisite for expansion of initial calcification sites and/or complete calcification.

Citing Articles

Histological and chemical diagnosis of a combat lesion in Triceratops.

DAnastasio R, Cilli J, Bacchia F, Fanti F, Gobbo G, Capasso L Sci Rep. 2022; 12(1):3941.

PMID: 35393445 PMC: 8990019. DOI: 10.1038/s41598-022-08033-2.


A biochemical and immuno-electron microscopical analysis of chondroitin sulphate-rich proteoglycans in human alveolar bone.

Smith A, Singhrao S, Newman G, Waddington R, Embery G Histochem J. 1997; 29(1):1-9.

PMID: 9088940 DOI: 10.1023/a:1026406932452.


Occurrence of osteoblast necroses during ossification of long bone cortices in mouse fetuses.

Zimmermann B Cell Tissue Res. 1994; 275(2):345-53.

PMID: 8111841 DOI: 10.1007/BF00319433.


Localization of CD44, the hyaluronate receptor, on the plasma membrane of osteocytes and osteoclasts in rat tibiae.

Nakamura H, Kenmotsu S, Sakai H, Ozawa H Cell Tissue Res. 1995; 280(2):225-33.

PMID: 7540113 DOI: 10.1007/BF00307793.


A comparative ultrahistochemical study of glycosaminoglycans with cuprolinic blue in bone formed in vivo and in vitro.

Nefussi J, Septier D, Collin P, Goldberg M, FOREST N Calcif Tissue Int. 1989; 44(1):11-9.

PMID: 2492883 DOI: 10.1007/BF02556235.


References
1.
Bennett G, Kan F, OShaughnessy D . The site of incorporation of sialic acid residues into glycoproteins and the subsequent fates of these molecules in various rat and mouse cell types as shown by radioautography after injection of [3H]N-acetylmannosamine. II. Observations in tissues.... J Cell Biol. 1981; 88(1):16-28. PMC: 2111724. DOI: 10.1083/jcb.88.1.16. View

2.
HANKER J, DIXON A, Smiley G . Acid phosphatase in the golgi apparatus of cells forming extracellular matrix of hard tissues. Histochemie. 1973; 35(1):39-50. DOI: 10.1007/BF00303663. View

3.
Triffitt J, Owen M . Studies on bone matrix glycoproteins. Incorporation of (1-14C)glucosamine and plasma (14C)glycoprotein into rabbit cortical bone. Biochem J. 1973; 136(1):125-34. PMC: 1165932. DOI: 10.1042/bj1360125. View

4.
Scott B, PEASE D . Electron microscopy of the epiphyseal apparatus. Anat Rec. 1956; 126(4):465-95. DOI: 10.1002/ar.1091260405. View

5.
ENGFELDT B, Hjerpe A . Glycosaminoglycans of dentine and predentine. Calcif Tissue Res. 1972; 10(2):152-9. DOI: 10.1007/BF02012545. View