Reduced Expression of Stromal-Derived Factor 1 in Autonomous Thyroid Adenomas and Its Regulation in Thyroid-Derived Cells1

Autor: Gabriela Aust, M. Kamprad, M. Steinert, C. Simchen, S. Kiessling
Rok vydání: 2001
Předmět:
Zdroj: The Journal of Clinical Endocrinology & Metabolism. 86:3368-3376
ISSN: 1945-7197
0021-972X
DOI: 10.1210/jcem.86.7.7654
Popis: Stromal-derived factor 1 (SDF-1) and CXCR4 comprise a unique chemokine/chemokine receptor pair, exhibiting important functions in morphogenesis and growth regulation as well as attractant properties on T lymphocytes. No data are available on SDF-1 and CXCR4 in normal or pathological thyroid tissues. SDF-1, CXCR4, and CD18 messenger ribonucleic acid (mRNA) as a marker of leukocytic infiltration were quantified in tissues affected by thyroid adenoma (n = 11) and Graves’ disease (GD; n = 16) using competitive RT-PCR. SDF-1 mRNA levels differed significantly between autonomous adenomas and the corresponding normal tissue, but not in GD between patients with low or high leukocyte infiltration, thyroid peroxidase, and TSH receptor autoantibodies, respectively. We found a strong correlation between CXCR4 and CD18 mRNA, which indicates CXCR4 expression by leukocytes. To define the cellular source of SDF-1 and CXCR4 in thyroid tissue, we examined various thyroid-derived cells. Fibroblasts are the most potent produ...
Databáze: OpenAIRE