The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 2014
Filed:
Nov. 28, 2007
Tommy Andersson, Malmo, SE;
Tommy Andersson, Malmo, SE;
Wntresearch AB, Lund, SE;
Abstract
Loss of Wnt-5a protein expression in breast carcinoma patients is associated with a shorter recurrence-free survival as well as increased motility in mammary cell lines. Based on sequence analysis of Wnt-5a, peptide fragments were identified and investigated for their ability to mimic effects of the Wnt-5a protein on mammary cell adhesion and motility. Two of these peptides significantly increased adhesion and impaired the motility of non-tumorigenic breast cancer cell lines, both low in endogenous Wnt-5a protein expression. To identify the shortest possible peptide that still had an anti-motile effect, sequential deletions of two amino acids from the N-terminal side of the shorter of these two peptides were performed. The effect on tumor cell adhesion was gradually lost, and when only 6 amino acids remained the effect was not detectable. However, formulation of the N-terminal methionine of this hexapeptide restored its effect on adhesion and reduced tumor cell motility. The formyl-Met-Asp-Gly-Cys-Glu-Leu (formylated SEQ ID NO: 15) peptide ligand can serve as a lead substance for anti-metastatic treatment in the 50% of human breast cancers where the endogenous expression of Wnt-5a is reduced.