The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells.

The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells. Research Abstract Details 

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The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells. Abstract Text:

Yuki Ito,Matsuko Watanabe,Tomoko Nishizawa,Toshiya Omachi,Tatsuya Kobayashi,Susumu Kasama,Osami Habuchi,Jun Nakayama,

N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase (GalNAc4S-6ST) is a sulfotransferase responsible for biosynthesis of chondroitin sulfate E (CS-E). CS-E plays important roles in numerous biological events, such as neurite outgrowth. However, the role of GalNAc4S-6ST in tumor progression remains unknown. In the present study, we analyzed expression of GalNAc4S-6ST mRNA in colorectal cancer by combining real-time RT-PCR with in situ hybridization (ISH) using archived formalin-fixed and paraffin-embedded tissue sections. In 57.5% of 40 patients, expression of GalNAc4S-6ST mRNA was increased in cancer tissues compared with paired normal mucosa. ISH using an RNA probe specific for GalNAc4S-6ST revealed that it was expressed in colorectal cancer cells. Analysis of the relationship between expression of GalNAc4S-6ST as determined by real-time RT-PCR assay and various clinicopathological variables revealed that GalNAc4S-6ST was associated with vessel invasion, although a statistically significant difference was not seen (P=0.125 for lymphatic vessel invasion and P=0.242 for venous invasion). Taken together, we show that real-time RT-PCR combined with ISH is useful to investigate quantitatively GalNAc4S-6ST mRNA expression in formalin-fixed and paraffin-embedded tissue sections, and that GalNAc4S-6ST expressed by colorectal cancer cells plays a minor role in tumor progression.

The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells. Publishing Authors By Initials

Y Ito,M Watanabe,T Nishizawa,T Omachi,T Kobayashi,S Kasama,O Habuchi,J Nakayama,

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The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Acta histochemica et cytochemica

VOLUME: 40

Page Numbers: 53-9

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ISSN: 0044-5991

DAY: 10

MONTH: 05

YEAR: 2007

The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells. Information

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LANGUAGE: eng

NlmUniqueID: 147110

The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells. Keywords Mesh Terms:

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Grant and Affiliation Information for The Utility of Formalin-fixed and Paraffin-embedded Tissue Blocks for Quantitative Analysis of N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase mRNA Expressed by Colorectal Cancer Cells.

AFFILIATION: Department of Pathology, Shinshu University School of Medicine.

Country: Japan

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MEDLINETA: Acta Histochem Cytochem

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