Abstract
The appearance of the lysosomal enzymes acid phosphatase, arylsulfatase, and β-glucuronidase was studied during endochondral bone and bone marrow formation induced by implantation of demineralized bone matrix. The activities of acid phosphatase and β-glucuronidase gradually increased from the stage of mesenchymal cell proliferation on Day 3 onward to reach a peak on Day 13, during maximal bone remodeling. However, arysulfatase activity exhibited a sharp increase on Day 9, associated with the onset of cartilage hypertrophy and chondrolysis. The peak of arylsulfatase activity was also attained on Day 13. The activities of all three enzymes declined on Day 15 but acid phosphatase again exhibited an increase during hematopoietic bone marrow differentiation on Days 19-21. Histochemical and ultrastructural studies revealed intense lysosomal enzyme activity in macrophage-like cells on Day 7 and thereafter. During chondrolysis and bone remodeling, these cells were present in a perivascular location. Osteoclasts also exhibited strong reactivity for the lysosomal enzymes. Due to its characteristic temporal appearance during development of endochondral bone, arysulfatase may be used as a marker enzyme for chondrolysis and bone resorption.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 89-98 |
| Number of pages | 10 |
| Journal | Developmental Biology |
| Volume | 85 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 15 1981 |
| Externally published | Yes |
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- Developmental Biology
Cite this
Activity and distribution of lysosomal enzymes during collagenous matrix-induced cartilage, bone, and bone marrow development. / Rath, N. C.; Hand, A. R.; Reddi, A Hari.
In: Developmental Biology, Vol. 85, No. 1, 15.07.1981, p. 89-98.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Activity and distribution of lysosomal enzymes during collagenous matrix-induced cartilage, bone, and bone marrow development
AU - Rath, N. C.
AU - Hand, A. R.
AU - Reddi, A Hari
PY - 1981/7/15
Y1 - 1981/7/15
N2 - The appearance of the lysosomal enzymes acid phosphatase, arylsulfatase, and β-glucuronidase was studied during endochondral bone and bone marrow formation induced by implantation of demineralized bone matrix. The activities of acid phosphatase and β-glucuronidase gradually increased from the stage of mesenchymal cell proliferation on Day 3 onward to reach a peak on Day 13, during maximal bone remodeling. However, arysulfatase activity exhibited a sharp increase on Day 9, associated with the onset of cartilage hypertrophy and chondrolysis. The peak of arylsulfatase activity was also attained on Day 13. The activities of all three enzymes declined on Day 15 but acid phosphatase again exhibited an increase during hematopoietic bone marrow differentiation on Days 19-21. Histochemical and ultrastructural studies revealed intense lysosomal enzyme activity in macrophage-like cells on Day 7 and thereafter. During chondrolysis and bone remodeling, these cells were present in a perivascular location. Osteoclasts also exhibited strong reactivity for the lysosomal enzymes. Due to its characteristic temporal appearance during development of endochondral bone, arysulfatase may be used as a marker enzyme for chondrolysis and bone resorption.
AB - The appearance of the lysosomal enzymes acid phosphatase, arylsulfatase, and β-glucuronidase was studied during endochondral bone and bone marrow formation induced by implantation of demineralized bone matrix. The activities of acid phosphatase and β-glucuronidase gradually increased from the stage of mesenchymal cell proliferation on Day 3 onward to reach a peak on Day 13, during maximal bone remodeling. However, arysulfatase activity exhibited a sharp increase on Day 9, associated with the onset of cartilage hypertrophy and chondrolysis. The peak of arylsulfatase activity was also attained on Day 13. The activities of all three enzymes declined on Day 15 but acid phosphatase again exhibited an increase during hematopoietic bone marrow differentiation on Days 19-21. Histochemical and ultrastructural studies revealed intense lysosomal enzyme activity in macrophage-like cells on Day 7 and thereafter. During chondrolysis and bone remodeling, these cells were present in a perivascular location. Osteoclasts also exhibited strong reactivity for the lysosomal enzymes. Due to its characteristic temporal appearance during development of endochondral bone, arysulfatase may be used as a marker enzyme for chondrolysis and bone resorption.
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U2 - 10.1016/0012-1606(81)90238-4
DO - 10.1016/0012-1606(81)90238-4
M3 - Article
VL - 85
SP - 89
EP - 98
JO - Developmental Biology
JF - Developmental Biology
SN - 0012-1606
IS - 1
ER -