GLYCOSAMINOGLYCAN STRUCTURE AND CONTENT DIFFER ACCORDING TO THE ORIGINS OF HUMAN TUMORS

GLYCOSAMINOGLYCAN STRUCTURE AND CONTENT DIFFER ACCORDING TO THE ORIGINS OF HUMAN TUMORS

Author Jeronimo, Selma Maria Bezerra Autor UNIFESP Google Scholar
Sales, A. O. Google Scholar
Fernandes, M. Z. Google Scholar
Melo, F. P. Google Scholar
Sampaio, Lucia de Oliveira Autor UNIFESP Google Scholar
Dietrich, Carl Peter Autor UNIFESP Google Scholar
Nader, Helena Bonciani Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
UNIV FED RIO GRANDE NORTE
Abstract The glycosaminoglycans of the tumor mass and from the urine of patients with a nephroblastoma of embryonic origin (Wilms' tumor) and hypernephroma were analyzed. The urine of patients with Wilms' tumors prior to treatment, and two patients with metastasis contained high levels of hyaluronic acid (2-5 mg/l of urine) when compared to patients after surgery or chemotherapy where the content of hyaluronic acid was less than 0.1 mg/l. Urine of patients with hypernephroma and normal individuals contained even smaller amounts of hyaluronic acid. Normal kidneys contain mainly dermatan sulfate and heparan sulfate, while the hypernephroma and Wilms' tumor contain substantial amounts of chondroitin sulfate. The amount of glycosaminoglycans isolated from Wilms' tumor and hypernephroma were 10 times and 3 times, respectively, greater than normal kidneys. The amounts of hyaluronic acid in Wilms' tumor varied from 56 to 73% whereas normal kidneys contained about 13%. Chondroitin sulfate was also increased in Wilms' tumor and hypernephroma. It corresponded to 11% and 42%, respectively, of the total glycosaminoglycans. These and other findings indicate that the glycosaminoglycans of Wilms' tumors resemble those present during embryonic development of normal tissues whereas those in hypernephroma are typical of other carcinomas of different origins.
Keywords HEPARAN SULFATE
CHONDROITIN SULFATE
HYALURONIC ACID
TUMORS
URINE
WILMS TUMOR
HYPERNEPHROMA
Language English
Date 1994-09-01
Published in Brazilian Journal Of Medical And Biological Research. Sao Paulo: Assoc Bras Divulg Cientifica, v. 27, n. 9, p. 2253-2258, 1994.
ISSN 0100-879X (Sherpa/Romeo, impact factor)
Publisher Assoc Bras Divulg Cientifica
Extent 2253-2258
Access rights Closed access
Type Article
Web of Science ID WOS:A1994PG03900019
URI http://repositorio.unifesp.br/11600/43078

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