Transthyretin immunoreactivity in human and porcine liver, choroid plexus, and pancreatic isletsB Jacobsson, VP Collins, L Grimelius, T Pettersson, B Sandstedt and A Carlstrom Department of Pathology, Danderyd Hospital, Sweden. We examined transthyretin immunoreactivity (TTR-IR) in human and porcine liver, choroid plexus, and pancreatic islets with both polyclonal and monoclonal antibodies to TTR. The specificity of the immunoreactions and the effects of various fixatives were tested in immunohistochemical and dot-blot systems. B-5 fixative (mercuric chloride and sodium acetate in formalin) was the best immunopreservative. In both species, the TTR-IR in choroid plexus epithelial cells was strong and was much greater than that in hepatocytes. Glucagon cells in pancreatic islets were also strongly TTR immunoreactive. Insulin cells were slightly TTR immunoreactive in human but strongly so in porcine pancreas. The finding of TTR-IR in normal islets explains the presence of TTR-IR in human endocrine pancreatic tumors, notably glucagonomas and malignant insulinomas.
Volume 37,
Issue 1,
pp. 31-37,
01/01/1989
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A. E. Allen-Jennings, M. G. Hartman, G. J. Kociba, and T. Hai The Roles of ATF3 in Liver Dysfunction and the Regulation of Phosphoenolpyruvate Carboxykinase Gene Expression J. Biol. Chem., May 24, 2002; 277(22): 20020 - 20025. [Abstract] [Full Text] [PDF] |
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T. J. Giordano, L. J. Medeiros, V. Monterroso, W. M. Linehan, and M. J. Merino Transthyretin (Prealbumin) Immunoreactivity in Renal Cell Carcinoma and Other Neoplasms International Journal of Surgical Pathology, July 1, 1996; 4(1): 1 - 7. [Abstract] [PDF] |
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A. E. Allen-Jennings, M. G. Hartman, G. J. Kociba, and T. Hai The Roles of ATF3 in Glucose Homeostasis. A TRANSGENIC MOUSE MODEL WITH LIVER DYSFUNCTION AND DEFECTS IN ENDOCRINE PANCREAS J. Biol. Chem., July 27, 2001; 276(31): 29507 - 29514. [Abstract] [Full Text] [PDF] |
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