Umbilical cord transforming growth factor-beta 3: Isolation, comparison with recombinant TGF-beta 3 and cellular localization

被引:11
作者
Stewart, AA
Haley, JD
Qu, GY
Stam, K
Fenyo, D
Chait, BT
Marshak, DR
Ng, AYK
Marley, G
Iwata, KK
机构
[1] ONCOGENE SCI,DIV PHARMACEUT,UNIONDALE,NY 11553
[2] ROCKEFELLER UNIV,MASS SPECTROMETRY UNIT,NEW YORK,NY 10021
[3] WM KECK STRUCT BIOL LAB,COLD SPRING HARBOR,NY 11724
[4] BECKMAN NEUROSCI CTR,COLD SPRING HARBOR,NY 11724
[5] UROCOR INC,OKLAHOMA CITY,OK 73112
关键词
transforming growth factor beta-3; TGF-beta; 3; growth factor purification; umbilical cord; mass spectrometry; TGI;
D O I
10.3109/08977199609034569
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The transforming growth factor beta (TGF-beta) family of growth modulators play critical roles in tissue development and maintenance. Recent data suggest that individual TGF-beta isoforms (TGF-beta 1, -beta 2 and -beta 3) have overlapping yet distinct biological actions and target cell specificities, both in developing and adult tissues. The TGF-beta 3 isoform was purified to homogeneity from both natural and recombinant sources and characterized by laser desorption mass spectrometry, by protein sequencing, by amino acid analysis and by biological activity. TGF-beta 3 was the major TGF-beta isoform in umbilical cord (230 ng/g), and was physically and biologically indistinguishable from recombinant TGF-beta 3 and from the tumor growth inhibitory (TGI) protein found in umbilical cord. Immunohistochemistry using antipeptide TGF-beta 3 specific antibody showed TGF-beta 3 localization in perivascular smooth muscle.
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页码:87 / &
页数:13
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