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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Immunochemical differences between glucocorticoid receptors from corticoid-sensitive and -resistant malignant lymphocytes.

We have explored the possibility of using antibodies against purified rat liver glucocorticoid receptors to study the immunochemical properties of glucocorticoid receptors from murine and human malignant lymphocytes. For this purpose, purified immune immunoglobulin G was covalently linked to Sepharose CL-4B. We then examined the ability of the affinity gel to recognize cytosolic [3H]triamcinolone acetonide-receptor complexes from the corticoid-sensitive (CS) and -resistant strains of mouse lymphoma P1798, from CS lymphocytes of patients with chronic lymphatic leukemia, and from a CS clone of human leukemic lymphoblasts in tissue culture (CH6). Mouse thymus was used as a source of glucocorticoid receptor from normal CS lymphocytes. Whereas the immunoaffinity column retained 70 to 84% of the 58- to 62-A (Stokes radius) [3H]triamcinolone acetonide-receptor complexes characteristic of the CS mouse and human lymphocytes, it failed to recognize the 27- to 28-A (Stokes radius) glucocorticoid receptor present in corticoid-resistant mouse lymphoma P1798 cells. Therefore, under appropriate experimental conditions, it was possible to demonstrate cross-reactivity between the antiserum against rat liver glucocorticoid receptor and the 58- to 62-A (Stokes radius) glucocorticoid receptor from species as diverse as mouse and humans.[1]

References

  1. Immunochemical differences between glucocorticoid receptors from corticoid-sensitive and -resistant malignant lymphocytes. Stevens, J., Eisen, H.J., Stevens, Y.W., Haubenstock, H., Rosenthal, R.L., Artishevsky, A. Cancer Res. (1981) [Pubmed]
 
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