Cells cultured from human giant cell tumors of bone respond to parathyroid hormone

1976 ◽  
Vol 22 (S1) ◽  
pp. 269-274 ◽  
Author(s):  
S. R. Goldring ◽  
J. -M. Dayer ◽  
R. G. G. Russell ◽  
H. J. Mankin ◽  
S. M. Krane
1990 ◽  
Vol &NA; (258) ◽  
pp. 304???309
Author(s):  
SETSURO KOMIYA ◽  
YASUYUKI SASAGURI ◽  
AKIO INOUE ◽  
MASANORI NAKASHIMA ◽  
SABURO YAMAMOTO ◽  
...  

1978 ◽  
Vol 46 (3) ◽  
pp. 425-433 ◽  
Author(s):  
STEVEN R. GOLDRING ◽  
JEAN-MICHEL DAYER ◽  
R. GRAHAM ◽  
G. RUSSELL ◽  
HENRY J. MANKIN ◽  
...  

1980 ◽  
Vol 239 (2) ◽  
pp. E144-E149 ◽  
Author(s):  
D. A. Ausiello ◽  
M. Rosenblatt ◽  
J. M. Dayer

The physiological effects of parathyroid hormone (PTH) in bone are mediated at least in part by cyclic AMP. The biochemical events subsequent to this step have not been well characterized in this tissue. Giant cell tumors of bone (GT) increase cyclic AMP in response to PTH. This response can be inhibited by an analogue of bovine PTH, [Nle8, Nle18, Tyr34] bPTH-(3-34) amide (PTH-Inh). Cyclic AMP content and cyclic AMP-dependent protein kinase (cAMP-PK) were assayed in fresh tumors and cells in culture incubated with 1 microgram/ml of bPTH and/or PTH-Inh. PTH fully activated cAMP-PK in GT, and PTH-Inh completely inhibited PTH-stimulated increases in cyclic AMP content and cAMP-PK activity. When endogenous protein substrates were sought for cAMP-PK, three phosphoproteins of 55,000, 43,000, and 38,000 mol wt maximally increased their phosphorylation by 30% after 12-min incubation with bPTH. Dephosphorylation of proteins of 200,000 and 120,000 mol wt was also observed. These data are consistent with the hypothesis that PTH action in bone is mediated by the phosphorylation and dephosphorylation of specific substrates.


2007 ◽  
Vol 97 (3) ◽  
pp. 225-228 ◽  
Author(s):  
Hakan Selek ◽  
Hamza Özer ◽  
Sacit Turanli ◽  
Özlem Erdem

We describe a patient with a giant cell tumor in the talar head and neck of the left foot who was diagnosed as having osteochondritis dissecans and treated with arthroscopic drilling in this same location 3 years earlier. Giant cell tumors can be confused with several conditions, including giant cell reparative granulomas, brown tumors, and aneurysmal bone cysts. Giant cell tumors of bone typically occur in the epiphysis of long bones, including the distal femur and proximal tibia. They are uncommonly found in the small bones of the foot or ankle, and talar involvement is rare. Despite this rarity, the radiographic appearance and clinical signs of talar lesions should be considered in the differential diagnosis of nontraumatic conditions in the foot. (J Am Podiatr Med Assoc 97(3): 225–228, 2007)


PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0148401 ◽  
Author(s):  
Kenta Mukaihara ◽  
Yoshiyuki Suehara ◽  
Shinji Kohsaka ◽  
Keisuke Akaike ◽  
Yu Tanabe ◽  
...  

Orthopedics ◽  
2003 ◽  
Vol 26 (12) ◽  
pp. 1209-1212
Author(s):  
Nikolaos Demertzis ◽  
Fani Kotsiandri ◽  
Ioulia Giotis ◽  
Nikiphoros Apostolikas

2017 ◽  
Vol 7 (1) ◽  
pp. 47
Author(s):  
Eréndira G. Estrada-Villaseñor ◽  
Hidalgo Bravo Alberto ◽  
C. Bandala ◽  
P. De la Garza-Montano ◽  
Reyes Medina Naxieli ◽  
...  

Giant cell tumor of bone is considered by his behavior a benign but aggressive neoplasm. The objective of our study was to determine if there is a correlation between the Campanacci’s radiological classification of giant cell tumors of bone and the expression by immunohistochemistry of Cyclin D1 and proliferation cell nuclear antibody (PCNA). A retrospective and descriptive study was made. In total, there were 27 cases. All cases showed Cyclin D1 and PCNA positivity. Rho Spearman for Campanacci and Cyclin D1 expression was 0.06 and for Campanacci and PCNA was 0.418. We conclude that there is a positive correlation between PCNA expression in giant cell tumors of Bone and the Campanacci’s radiological classification II and III, butCyclin D1 expression was no related with radiologic features.


Sign in / Sign up

Export Citation Format

Share Document