Anticancer peptide for inhibiting proliferation of cancer stem cells and use thereof

US9993519B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9993519-B2
Application numberUS-201615113823-A
CountryUS
Kind codeB2
Filing dateMar 3, 2016
Priority dateMar 26, 2015
Publication dateJun 12, 2018
Grant dateJun 12, 2018

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention relates to an anticancer composition comprising a peptide that inhibits the proliferation of cancer stem cells present in tumor tissue and that induces apoptosis of such cancer stem cells, and more particularly, to an anticancer peptide that inhibits the activity of NF-κB which is overexpressed specifically in cancer stem cells present in tumors.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for treating breast cancer, the method comprising: administering a peptide to a patient with breast cancer, wherein the peptide is represented by an amino acid sequence of SEQ ID NOs: 2 or 3. 2. The method of claim 1 , wherein the peptide inhibits the activity of NF-κB in breast cancer cells or breast cancer stem cells. 3. The method of claim 1 , wherein the peptide inhibits the proliferation of breast cancer cells or breast cancer stem cells. 4. The method of claim 1 , wherein the peptide induces the apoptosis of breast cancer cells or breast cancer stem cells. 5. The method of claim 2 , wherein the breast cancer stem cells are included in breast cancer cells derived from a metastatic breast tumor. 6. The method of claim 1 , wherein the administering is by oral, injection, or local transplantation. 7. The method of claim 6 , wherein the local transplantation comprises administering a gelling agent that comprises a synthetic polymer or a natural polymer. 8. The method of claim 7 , wherein the synthetic polymer is any one selected from the group consisting of polylacticglycolic acid, and poloxamer. 9. The method of claim 7 , wherein the natural polymer is any one selected from the group consisting of collagen, chondroitin sulfate, and chitosan. 10. The method of claim 3 , wherein the breast cancer stem cells are included in breast cancer cells derived from a metastatic breast tumor. 11. The method of claim 4 , wherein the breast cancer stem cells are included in breast cancer cells derived from a metastatic breast tumor.

Assignees

Inventors

Classifications

  • Antineoplastic agents · CPC title

  • Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates · CPC title

  • A61K38/10Primary

    Peptides having 12 to 20 amino acids {(A61K38/043 - A61K38/046 take precedence)} · CPC title

  • Medicinal preparations characterised by special physical form {(nuclear magnetic resonance contrast preparations or magnetic resonance imaging contrast preparations A61K49/18; preparations containing radioactive substances A61K51/12)} · CPC title

  • Cationic antimicrobial peptides, e.g. defensins · CPC title

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What does patent US9993519B2 cover?
The present invention relates to an anticancer composition comprising a peptide that inhibits the proliferation of cancer stem cells present in tumor tissue and that induces apoptosis of such cancer stem cells, and more particularly, to an anticancer peptide that inhibits the activity of NF-κB which is overexpressed specifically in cancer stem cells present in tumors.
Who is the assignee on this patent?
Seoul Nat Univ R&Db Foundation, Nano Intelligent Biomedical Eng Corporation Co Ltd
What technology area does this patent fall under?
Primary CPC classification A61K38/10. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jun 12 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).