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Neuropilin-1 a multifunctional protein for progression in breast cancer.(Brief Article)

Women's Health Weekly

| October 17, 2002 | Nichols, Sonia | COPYRIGHT 2002 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2002 OCT 17 - (NewsRx.com & NewsRx.net) -- by Sonia Nichols, senior medical writer - Both conventional and novel genetic fingerprinting techniques have confirmed neuropilin-1 protein stimulates mechanisms associated with breast cancer progression.

According to medical investigators in Kansas City, Missouri, at the University of Kansas Medical Center, neuropilin-1 (NRP-1) reactivity is detected primarily in myoepithelial cells of the mammary duct and lobules, but not in the innermost epithelial cell layers of those breast tissues. NRP-1 may be a useful predictor for breast cancer progression, the researchers say.

"The myoepithelial cells of ducts and lobules in both neoplastic and nonneoplastic tissue specimens displayed a stronger positive reaction for NRP-1 than those in the normal breast," described John M. Stephenson and colleagues.

Tissues with atypical epithelial hyperplasia as well those of ductal carcinoma in situ were reactive for NRP-1, although at varying levels (Neuropilin-1 is differentially expressed in myoepithelial cells and vascular smooth muscle cells in preneoplastic and neoplastic human breast: A possible marker for the progression of breast cancer. International Journal of Cancer, October 2002;101(5):409-414).

"The reaction was ...

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