IP Library Granted Patent US 7,125,716
Granted Patent B2
US 7,125,716 · App. 10/438,279 · Granted Oct 24, 2006

Culturable mitochondrial cells with no nucleus, showing mitochondrial activity

Assignee: Eisai Research Institute
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,125,716
App. No.
10/438,279
Granted
Oct 24, 2006
Kind
B2
Abstract

Provided are a method of producing a culturable cell with no nucleus, showing mitochondrial activity, comprising: performing cell fusion between a nucleus-less cell having mitochondrial DNA and a mitochondrial DNA-less cultured cell derived from a cancer cell; culturing resulting cybrid cells; and recovering floating cells from obtained cultured cells, and a cell obtained by the method.

Claims (13)

1. A method of producing a culturable cell population, showing mitochondrial activity, wherein the cell population contains at least one cell with a nucleus and cells with no nucleus, and wherein 95% or more among the cell population are cells with no nucleus, comprising:

performing cell fusion between a nucleus-less cell having mitochondrial DNA and a mitochondrial DNA-less cultured cancer cell or cell of an established cell line;

culturing resulting cybrid cells; and

recovering floating cells which separate from adherent cybrid cells during the culture thereof.

2. A method according to claim 1 , wherein the nucleus-less cell having mitochondrial DNA is a platelet.

3. A method according to claim 1 , wherein the mitochondrial DNA-less cultured cell is a Hela Rho 0 cell.

4. A culturable cell population, showing mitochondrial activity obtained by the method according to any one of claims 1 to 3 .

5. A method of producing a population of cells with no nucleus showing mitochondrial activity, comprising:

performing cell fusion between a nucleus-less cell having mitochondrial DNA and a mitochondrial DNA-less cultured cancer cell or cell of an established cell line;

culturing resulting cybrid cells;

recovering floating cells which separate from adherent cybrid cells during the culture thereof;

determining the presence or absence of a nucleus in the floating cells; and

selecting cells with no nucleus.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 2, 2007
From: EISAI CO., LTD.
To: EISAI R&D MANAGEMENT CO., LTD.
Reel/Frame 019235/0487 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 19, 2003
From: NAKANO, KAZUTOSHI; OHTA, SHIGEO
To: EISAI CO., LTD.
Reel/Frame 014712/0818 →
Priority Claims (2)
JP 2002-139673 · May 15, 2002 · national
JP 2003-131993 · May 9, 2003 · national
Continuity (1)
Related Publication 20040121458A1 · Jun 24, 2004