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1995•The Journal of BiochemistryRequires access

Aberrant Expressions of Decorin and Biglycan Genes in the Carbohydrate-Deficient Glycoprotein Syndrome1

Jianguo Gu, Yoshinao Wada

Open publisher page 16 citations

Abstract

Carbohydrate-deficient glycoprotein syndrome (CDGS) is a congenital disorder characterized by neurological and developmental defects. We have examined the expressions of the small proteoglycans decorin and biglycan in cultured skin fibroblasts from a patient with CDGS Type-I. Northern blotting analysis identified a marked reduction in decorin mRNA and an increase in biglycan mRNA levels. The decorin protein in the culture medium was decreased. Responses to interleukin-1 beta (IL-1 beta) and transforming growth factor-beta 1 (TGF-beta 1) were apparently abnormal; decorin was only slightly up-regulated by IL-1 beta, while biglycan was markedly down-regulated by IL-1 beta and significantly up-regulated by TGF-beta 1. The constitutional and developmental abnormalities characteristic of CDGS may be associated with such derangements in the expression of proteoglycan genes.

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What this paper is about

Carbohydrate-deficient glycoprotein syndrome (CDGS) is a congenital disorder characterized by neurological and developmental defects. We have examined the expressions of the small proteoglycans decorin and biglycan in cultured skin fibroblasts from a patient with CDGS Type-I. Northern blotting analysis identified a marked reduction in decorin mRNA and an increase in biglycan mRNA levels. The decorin protein in the culture medium was decreased. Responses to interleukin-1 beta (IL-1 beta) and transforming growth factor-beta 1 (TGF-beta 1) were apparently abnormal; decorin was only slightly up-regulated by IL-1 beta, while biglycan was markedly down-regulated by IL-1 beta and significantly up-regulated by TGF-beta 1. The constitutional and developmental abnormalities characteristic of CDGS may be associated with such derangements in the expression of proteoglycan genes.

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Available abstract

Carbohydrate-deficient glycoprotein syndrome (CDGS) is a congenital disorder characterized by neurological and developmental defects. We have examined the expressions of the small proteoglycans decorin and biglycan in cultured skin fibroblasts from a patient with CDGS Type-I. Northern blotting analysis identified a marked reduction in decorin mRNA and an increase in biglycan mRNA levels. The decorin protein in the culture medium was decreased. Responses to interleukin-1 beta (IL-1 beta) and transforming growth factor-beta 1 (TGF-beta 1) were apparently abnormal; decorin was only slightly up-regulated by IL-1 beta, while biglycan was markedly down-regulated by IL-1 beta and significantly up-regulated by TGF-beta 1. The constitutional and developmental abnormalities characteristic of CDGS may be associated with such derangements in the expression of proteoglycan genes.

Key concepts: Biglycan, Decorin, Proteoglycan, Blot, Lumican, Glycoprotein, Molecular biology, BETA (programming language)

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Aberrant Expressions of Decorin and Biglycan Genes in the Carbohydrate-Deficient Glycoprotein Syndrome1 — Research Paper | ScholarLens