Levels of the thymic factor thymalin in human and murine skin epithelia during ontogeny

1996 ◽  
Vol 122 (5) ◽  
pp. 1147-1149
Author(s):  
I. I. Kalinina ◽  
Z. S. Khlystova ◽  
V. Kh. Khavinson ◽  
V. Yu. Arshinov ◽  
G. T. Sukhikh
Keyword(s):  
Thymic Factor

Electron microscope study of the secretory activity of epithelial cells in embryonic thymus

1990 ◽  
Vol 48 (3) ◽  
pp. 382-383
Author(s):  
H. Alasam
Keyword(s):  
Cell Differentiation ◽  
T Cell ◽  
Epithelial Cells ◽  
Electron Density ◽  
Secretory Activity ◽  
T Cell Differentiation ◽  
High Electron ◽  
Transmission Electron ◽  
Medullary Epithelial Cells ◽  
Thymic Factor

The possibility that intrathymic T-cell differentiation involves stem cell-lymphoid interactions in embryos led us to study the ultrastructure of epithelial cell in normal embryonic thymus. Studies in adult thymus showed that it produces several peptides that induce T-cell differentiation. Several of them have been chemically characterized, such as thymosin α 1, thymopoietin, thymic humoral factor or the serum thymic factor. It was suggested that most of these factors are secreted by populations of A and B-epithelial cells.Embryonic materials were obtained from inbred matings of Swiss Albino mice. Thymuses were disected from embryos 17 days old and prepared for transmission electron microscopy. Our studies showed that embryonic thymus at this stage contains undifferentiated and differentiated epithelial cells, large lymphoblasts, medium and few small lymphocytes (Fig. 5). No differences were found between cortical and medullary epithelial cells, in contrast to the findings of Van Vliet et al,. Epithelial cells were mostly of the A-type with low electron density in both cytoplasm and nucleus. However few B-type with high electron density were also found (Fig. 7).

REGULATION OF ?-ANTIGEN EXPRESSION BY AGENTS ALTERING CYCLIC AMP LEVEL AND BY THYMIC FACTOR

1975 ◽  
Vol 249 (1 Thymus Factor) ◽  
pp. 316-327 ◽  
Author(s):  
Marie-Anne Bach ◽  
Catherine Fournier ◽  
Jean-François Bach
Keyword(s):  
Cyclic Amp ◽  
Antigen Expression ◽  
Thymic Factor

Specificity of Metal Binding to Serum Thymic Factor (FTS)

1984 ◽  
pp. 31-34
Author(s):  
L.N. GASTINEL ◽  
M. DARDENNE ◽  
J.M. PLEAU ◽  
J.F. BACH
Keyword(s):  
Metal Binding ◽  
Serum Thymic Factor ◽  
Thymic Factor

Thymic factor-induced reduction of pulmonary metastases in mice with FSA-1 fibrosarcoma

1988 ◽  
Vol 6 (1) ◽  
pp. 17-25 ◽  
Author(s):  
V. J. Tomazic ◽  
C. R. Sacasa ◽  
A. Loftus ◽  
C. S. Suter ◽  
G. E. Elias
Keyword(s):  
Pulmonary Metastases ◽  
Thymic Factor

Epithelial cell components immunoreact with antiserum thymic factor (FTS) antibodies: Possible association with intermediate-sized filaments

Cell ◽  
1981 ◽  
Vol 24 (3) ◽  
pp. 885-895 ◽  
Author(s):  
Koichi Kato ◽  
Shuichi Ikeyama ◽  
Muneo Takaoki ◽  
Akio Shino ◽  
Masao Takeuchi ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Cell Components ◽  
Thymic Factor

Effect of a human serum thymic factor on hydrocortisone-treated thymocytes

1977 ◽  
Vol 7 (12) ◽  
pp. 836-840 ◽  
Author(s):  
Giulia C.B. Astaldi ◽  
A. Astaldi ◽  
Marjorie Groenewoud ◽  
P. Wijermans ◽  
P.Th.A. Schellekens ◽  
...  
Keyword(s):  
Human Serum ◽  
Serum Thymic Factor ◽  
Thymic Factor
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