Immune induction of major histocompatibility complex antigens on a human thyroid cell line (SGHTL-34)

1989 ◽  
Vol 2 (3) ◽  
pp. 183-187 ◽  
Author(s):  
S. L. King ◽  
G. St J. Whitley ◽  
S. Page ◽  
S. S. Nussey ◽  
A. P. Johnstone
Keyword(s):  
Major Histocompatibility Complex ◽  
Cell Line ◽  
Class Ii ◽  
Class I ◽  
Human Thyroid ◽  
Thyroid Cell ◽  
Histocompatibility Complex ◽  
Thyroid Cell Line ◽  
Class Ii Antigens ◽  
Γ Interferon

ABSTRACT Expression of major histocompatibility complex antigens by epithelial cells may play a role in the aetiology of autoimmune disorders. We have studied the effect of γ-interferon on SGHTL-34, a human thyroid cell line which constitutively expresses class I but not class II antigens. γ-Interferon induced the expression of class II and increased the expression of class I molecules (assessed by flow cytofluorimetry) in a dose-dependent manner. Thyrotrophin or phytohaemagglutinin had no effect on either class I or class II expression. However, a supernatant from phytohaemagglutinin-stimulated peripheral blood mononuclear cells, containing 6400 U γ-interferon/ml, was an effective inducer of both class I and class II antigens. These data clarify earlier studies using primary thyroid cultures, which are contaminated with cells of the immune system.

Regulation of major histocompatibility complex class II antigen expression by the FRTL-5 rat thyroid cell line

1987 ◽  
Vol 115 (3) ◽  
pp. 481-487 ◽  
Author(s):  
A. P. Weetman ◽  
C. Green ◽  
L. K. Borysiewicz
Keyword(s):  
Major Histocompatibility Complex ◽  
Cell Line ◽  
Antigen Expression ◽  
Class Ii ◽  
Thyroid Cell ◽  
Histocompatibility Complex ◽  
Thyroid Cell Line ◽  
Rat Thyroid ◽  
Class Ii Antigen ◽  
Γ Interferon

ABSTRACT We have used the continuously growing FRTL-5 rat thyroid cell line to examine the regulation of major histocompatibility complex (MHC) class II (or la) antigen expression. Of the various stimuli investigated, only the supernatant from activated T cells or recombinant γ-interferon induced Ia expression. All Ia-inducing activity was removed from the T cell supernatant by acid dialysis, suggesting that γ-interferon is the single critical mediator for class II antigen expression. Its action was not TSH dependent but expression of class II antigens increased from the G0-G1 to the S and G2 phases of the cell cycle, so that TSH enhanced Ia expression by its action on cell division. Other agents including lectins, hormones, epidermal growth factor, a calcium ionophore and a phorbol ester did not induce Ia expression. Substances known to inhibit murine macrophage Ia expression (cortisol, prostaglandin E2 and 5-hydroxytryptamine) had no effect on FRTL-5 Ia expression. The use of this thyroid cell line has permitted direct examination of modulators in the absence of any possible effects from contaminating non-thyroid cells present in primary cultures and the results suggest that, of the agents tested, only γ-interferon has significance in the context of Ia antigen expression by the thyroid. J. Endocr. (1987) 115, 481–487

scholarly journals Dichotomy in the tissue origin of schistosome acquired class I and class II major histocompatibility complex antigens.

1984 ◽  
Vol 159 (3) ◽  
pp. 952-957 ◽  
Author(s):  
A Sher ◽  
D L Sacks ◽  
A J Simpson ◽  
A Singer
Keyword(s):  
Bone Marrow ◽  
Major Histocompatibility Complex ◽  
Class Ii ◽  
Class I ◽  
Major Histocompatibility ◽  
Histocompatibility Complex ◽  
Donor Cells ◽  
Bone Marrow Chimeras ◽  
Class Ii Antigens ◽  
Tissue Origin

Schistosoma mansoni schistosomula recovered from the lungs of mice have previously been shown to express host-derived class I and class II major histocompatibility complex (MHC) antigens. To investigate the tissue origin of parasite-acquired MHC products, lung-stage schistosomula were obtained from a series of parent leads to F1 and F1 leads to parent bone marrow chimeras and the parasites typed by immunofluorescence for the presence of haplotype-specific K region and I region MHC determinants. The results of these experiments indicated that, despite their intravascular residence in the host, schistosomula derive all of their class I antigen from a nonhemapoietic tissue source. In contrast, the class II antigens expressed on the surface of schistosomula were found to originate from bone marrow-derived donor cells. These results support the hypothesis that MHC product acquisition by schistosomes involves selective and specific interactions with host tissue and, in the case of class I antigens, suggest that the endothelium may be a major site of host molecule uptake for the parasite.

scholarly journals Massive induction of donor-type class I and class II major histocompatibility complex antigens in rejecting cardiac allografts in the rat.

1985 ◽  
Vol 161 (1) ◽  
pp. 98-112 ◽  
Author(s):  
A D Milton ◽  
J W Fabre
Keyword(s):  
Major Histocompatibility Complex ◽  
Vascular Endothelium ◽  
Class Ii ◽  
Class I ◽  
Myocardial Cells ◽  
Major Histocompatibility ◽  
Histocompatibility Complex ◽  
Cardiac Allografts ◽  
Quantitative Absorption ◽  
Class Ii Antigens

DA (RT1a) hearts were transplanted into PVG (RT1c) or DA recipients, excised on days 1, 3, 5, or 7 after grafting, and examined by immunohistological techniques and quantitative absorption analyses, using allospecific mouse anti-rat class I and class II major histocompatibility complex (MHC) monoclonal antibodies. Cryostat sections stained by the peroxidase technique demonstrated that, in the normal heart, class I antigens were largely restricted to vascular endothelium and interstitial cells, with no observable staining of the myocardial cells except at the intercalated discs. Class II antigens were found only on occasional interstitial dendritic cells. The picture at day 1 after transplantation was not noticeably different. By day 3, however, there was clear patchy induction of both class I and class II antigens on the myocardial cells, usually in the region of cellular infiltrates. By day 5, class I antigens had been strongly induced throughout the graft, with the myocardial cells being very strongly positive. Class II antigens were also uniformly expressed on myocardial cells at day 5, and at this stage the vascular endothelium was also strongly positive. Quantitative absorption analyses showed a 10-fold increase in class I antigen content in cardiac allografts at day 5 after transplantation when compared with normal DA heart. DA heart isografts showed no increase in class II antigens, but it was interesting that, by 5 d after grafting, there appeared to be some expression of class I antigens on the myocardial cells. Quantitative absorptions showed a threefold increase in class I antigens on 5-d isografts when compared with normal DA heart.

Characterization of major histocompatibility complex class I, and class II DRB loci of captive and wild Indian leopards (Panthera pardus fusca)

Genetica ◽  
2017 ◽  
Vol 145 (6) ◽  
pp. 541-558
Author(s):  
Drashti R. Parmar ◽  
Siuli Mitra ◽  
Snehalata Bhadouriya ◽  
Tirupathi Rao ◽  
Vaishnavi Kunteepuram ◽  
...  
Keyword(s):  
Major Histocompatibility Complex ◽  
Major Histocompatibility Complex Class ◽  
Class Ii ◽  
Class I ◽  
Panthera Pardus ◽  
Complex Class ◽  
Major Histocompatibility ◽  
Histocompatibility Complex
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