Serum gangliosides in cerebral astrocytoma

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Abstract
The serum concentration and composition of gangliosides were examined in 80 humans including 10 normal subjects. A significant increase was found in the total gangliosides of serum in 7 patients with cerebral astrocytomas. There was also an increased percentage of serum gangliosides with simpler structure, particularly GM3. The serum of patients with other intracranial tumors, including pituitary adenomas, ependymoma, teratoma, and metastases, did not show an increase in total ganglioside; however the pattern of simplification was found in these and in a few patients with extracranial tumors as well. The findings suggest that astrocytoma tumors shed sialoglycolipids into the circulation, and their assay may be useful in monitoring oncological therapy.