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Extracellular matrix protein 1 (ECM1) has angiogenic properties and is expressed by breast tumor cells
Author(s) -
Han Zeqiu,
Ni Jian,
Smits Patrick,
Underhill Charles B.,
Xie Bin,
Chen Yixin,
Liu Ningfei,
Tylzanowski Przemko,
Parmelee David,
Feng Ping,
Ding Ivan,
Gao Feng,
Gentz Reiner,
Huylebroeck Danny,
Merregaert Jozef,
Zhang Lurong
Publication year - 2001
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fsb2fj990934com
Subject(s) - angiogenesis , extracellular matrix , chorioallantoic membrane , immunohistochemistry , metastasis , biology , microbiology and biotechnology , staining , extracellular , endothelium , glycoprotein , breast cancer , pathology , cancer research , cancer , immunology , medicine , endocrinology , genetics
Tumor growth and metastasis are critically dependent on the formation of new blood vessels. The present study found that extracellular matrix protein 1 (ECM1), a newly described secretory glycoprotein, promotes angiogenesis. This was initially sug‐gested by in situ hybridization studies of mouse embryos indicating that the ECM1 message was associated with blood vessels and its expression pattern was similar to that of flk‐1, a recognized marker for endothelium. More direct evidence for the role of ECM1 in angiogenesis was provided by the fact that highly purified recombinant ECM1 stimulated the proliferation of cultured endothelial cells and promoted blood vessel formation in the chorioallantoic membrane of chicken embryos. Immunohistochemical staining with specific antibodies indicated that ECM1 was expressed by the human breast cancer cell lines MDA‐435 and LCC15, both of which are highly tumorigenic. In addition, staining of tissue sections from patients with breast cancer revealed that ECM1 was present in a significant proportion of primary and secondary tumors. Collectively, the results of this study suggest that ECM1 possesses angiogenic properties that may promote tumor progression.—Han, Z., Ni, J., Smits, P., Underhill, C. B., Xie, B., Chen, Y., Liu, N., Tylzanowski, P., Parmelee, D., Feng, P., Ding, I., Gao, F., Gentz, R., Huylebroeck, D., Merregaert, J., Zhang, L. Extracellular matrix protein 1 (ECM1) has angiogenic properties and is expressed by breast tumor cells. FASEB J. 15, 988–994 (2001)