Surface characterization of bone graft substitute materials conditioned in cell culture medium

2010 ◽  
Vol 42 (6-7) ◽  
pp. 452-456 ◽  
Author(s):  
Z. Mladenovic ◽  
A. Sahlin-Platt ◽  
Å. Bengtsson ◽  
M. Ransjö ◽  
A. Shchukarev
2002 ◽  
Vol 43 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Sachiko Hiromoto ◽  
Katsuhiko Asami ◽  
An Pang Tsai ◽  
Takao Hanawa

Author(s):  
Andrey Shchukarev ◽  
Behnosh Öhrnell Malekzadeh ◽  
Maria Ransjö ◽  
Pentti Tengvall ◽  
Anna Westerlund

2010 ◽  
Vol 6 (7) ◽  
pp. 1238 ◽  
Author(s):  
Haruhisa Kato ◽  
Naohide Shinohara ◽  
Ayako Nakamura ◽  
Masanori Horie ◽  
Katsuhide Fujita ◽  
...  

1984 ◽  
Vol 218 (2) ◽  
pp. 313-320 ◽  
Author(s):  
M K Skinner ◽  
W L Cosand ◽  
M D Griswold

Sertoli cells synthesize and secrete a transferrin-like protein (testicular transferrin) [Skinner & Griswold (1980) J. Biol. Chem. 255, 1923-1925]. The purpose of the present study was to purify and characterize testicular transferrin and to compare it with serum transferrin. Testicular transferrin was obtained from the medium of cultured rat Sertoli cells, whereas serum transferrin was obtained from rat serum. Both proteins were purified with the use of phenyl-Sepharose hydrophobic chromatography and transferrin immunoaffinity chromatography. The purified proteins were shown to have similar molecular masses (75 000 Da) and amino acid compositions. The pattern of tryptic peptides from testicular and serum transferrin were found to be essentially the same when analysed by reverse-phase high-pressure liquid chromatography. The carbohydrate composition of both transferrins was determined by several colorimetric assays and g.l.c. Testicular transferrin, isolated from cell culture medium, had increased amounts of glucose, galactose and glucosamine. Serum transferrin that was incubated with cell culture medium also had a large amount of associated glucose. The results show that testicular transferrin and serum transferrin are structurally very similar and are possibly products of the same gene expressed in two different tissues, the testis and liver. However, the amount of carbohydrate associated with these two proteins is different.


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