Dermatan sulfate is involved in the tumorigenic properties of Esophagus Squamous Cell Carcinoma.

Summary, in English

Extracellular matrix, either produced by cancer cells or by cancer-associated fibroblasts, influences angiogenesis, invasion and metastasis. Chondroitin/dermatan sulfate (CS/DS) proteoglycans, which occur both in the matrix and at the cell surface, play important roles in these processes. The unique feature that distinguishes DS from CS is the presence of iduronic acid (IdoA) in DS. Here, we report that CS/DS is increased five-fold in human biopsies of esophagus squamous cell carcinoma (ESCC), an aggressive tumor with poor prognosis, as compared with normal tissue. The main IdoA-producing enzyme, DS epimerase 1 (DS-epi1), together with the 6-O- and 4-O-sulfotransferases, were highly up-regulated in ESCC biopsies. Importantly, CS/DS structure in patient tumors was significantly altered compared with normal tissue, as determined by sensitive mass spectrometry. To further understand the roles of IdoA in tumor development, DS-epi1 expression, and consequently IdoA content, wasdownregulated in ESCC cells. IdoA-deficient cells exhibited decreased migration and invasion capabilities in vitro, which was associated with reduced cellular binding of hepatocyte growth factor, inhibition of pERK-1/2 signaling, and de-regulated actin cytoskeleton dynamics and focal adhesion formation. Our findings demonstrate that IdoA in DS influences tumorigenesis by affecting cancer cell behavior. Therefore, down-regulation of IdoA by DS-epi1 inhibitors may represent a new anti-cancer therapy.

• Författare: Martin Thelin; Katrin Svensson; Xiaofeng Shi; Mariam Bagher; Jakob B Axelsson; Anna Isinger Ekstrand; Toin H van Kuppevelt; Jan Johansson; Mef Nilbert; Joseph Zaia; Mattias Belting; Marco Maccarana; Anders Malmström
• Avdelning/ar: Matrix Biology; Bröstcancer-genetik; Lungbiologi; Kirurgi, Lund; Institutionen för immunteknologi; EpiHealth: Epidemiology for Health; BioCARE: Biomarkers in Cancer Medicine improving Health Care, Education and Innovation
• Publiceringsår: 2012
• Språk: Engelska
• Sidor: 1943-1952
• Publikation/Tidskrift/Serie: Cancer Research
• Volym: 72
• Issue: 8
• Länkar: http://www.ncbi.nlm.nih.gov/pubmed/22350411?dopt=Abstract; http://dx.doi.org/10.1158/0008-5472.CAN-11-1351
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Association for Cancer Research Inc.
• Ämne: Cancer and Oncology
• Status: Published
• Forskningsgrupp: Matrix Biology; Lung Biology
• ISBN/ISSN/Övrigt: ISSN: 1538-7445