Autoserum-containing bone marrow cell culture system, autoserum-containing bone marrow cell culture method, and method for producing medicinal composition comprising autoserum-containing cultured bone marrow cells as active ingredient

Patent metadata

Field	Value
Publication number	US-10563173-B2
Application number	US-201715594991-A
Country	US
Kind code	B2
Filing date	May 15, 2017
Priority date	Aug 3, 2010
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

To provide an autoserum-containing bone marrow cell culture system, whereby bone marrow cells, which are collected from a subject without using an anticoagulant, are subjected to an anticoagulation treatment using a medium in a liquid-tight state, cultured and then further cultured using the serum of said subject which is prepared in a liquid-tight state; an autoserum-containing bone marrow cell culture method; and a method for producing a medicinal composition which comprises, as the active ingredient, autoserum-containing cultured bone marrow cells. [Solution] An autoserum-containing bone marrow cell culture system for culturing bone marrow cells, which are collected from a subject without using an anticoagulant, using the serum of said subject, said system comprising a bone marrow cell suspension-storing device, a collected blood-storing device, an autoserum-acquiring device, and a bone marrow cell-culturing device.

First claim

What is claimed is:

1. A method for preparing cultured bone marrow cells from a subject without use of an anticoagulant, comprising:
(a) collecting at a site of the subject a bone marrow fluid in a liquid-tight state without use of an anticoagulant, wherein the collected bone marrow fluid comprises bone marrow cells;
(b) mixing the collected bone marrow fluid with a batch of a first culture medium in a liquid-tight state at the site of collection without use of an anticoagulant immediately after step (a), wherein the batch of the first culture medium is in an amount 1.5 times to 6 times the amount of the collected bone marrow fluid, whereby an anticoagulated bone marrow cell suspension comprising the bone marrow cells in the presence of the batch of the first culture medium is prepared;
(c) transporting the anticoagulated bone marrow cell suspension in a suspended state to a location of cell culture; and
(d) culturing the bone marrow cells in the presence, of the batch of the first culture medium used in step (b) in a bone marrow cell culture vessel at the location of cell culture, whereby the cultured bone marrow cells are prepared.

2. The method of claim 1 , wherein the culturing step is performed in the presence of a serum of the subject.

3. The method of claim 1 , wherein the culturing step is performed in the presence of a serum of the subject and a second culture medium.

4. The method of claim 1 , further comprising:
(e) preparing a culture supernatant comprising floating cells from the culture of step (d);
(f) removing the culture supernatant from the bone marrow cell culture vessel to produce bone marrow cells attached to the bone marrow cell culture vessel; and
(g) adding a medium to the attached bone marrow cells, wherein the medium comprises a serum of the subject.

5. A method for producing a medicinal composition comprising, mixing the cultured bone marrow cells from a subject prepared according to the method of claim 1 with a medium, wherein the medium comprises a serum of the subject.

6. A method for preparing cultured bone marrow cells from a subject without use of an anticoagulant, comprising:
(a) collecting at a site of the subject a bone marrow fluid containing bone marrow cells in a liquid-tight state, wherein the collected bone marrow fluid comprises bone marrow cells;
(b) mixing the collected bone marrow fluid with a batch of a first culture medium in a liquid-tight state at the site of collection, wherein the batch of the first culture medium is in an amount 1.5 times to 6 times the amount of the collected bone marrow fluid, whereby an anticoagulated bone marrow cell suspension comprising the bone marrow cells in the presence of the batch of the first culture medium is prepared;
(c) directly culturing and transporting the bone marrow cells in the anticoagulated bone marrow cell suspension in a suspended state to a location of cell culture, wherein the bone marrow cells are directly cultured in the presence of the batch of the first culture medium used in step (b); and
(d) culturing the bone marrow cells from the anticoagulated bone marrow cell suspension from step (c) in a bone marrow cell culture vessel at the location of cell culture, wherein the bone marrow cells are cultured in the presence of the batch of the first culture medium used in steps (b) and (c), whereby the cultured bone marrow cells are prepared.

7. The method of claim 6 , wherein the culturing step (d) is performed in the presence of a serum of the subject.

8. The method of claim 6 , wherein the culturing step (d) is performed in the presence of a serum of the subject and a second culture medium.

9. The method of claim 6 , further comprising:
(e) preparing a culture supernatant comprising floating cells from the culture of step (d);
(f) removing the culture supernatant from the bone marrow cell culture vessel to produce bone marrow cells attached to the bone marrow cell culture vessel; and
(g) adding a medium to the attached bone marrow cells, wherein the medium comprises a serum of the subject.

10. A method for producing a medicinal composition comprising, mixing the cultured bone marrow cells from a subject prepared according to the method of claim 6 with a medium, wherein the medium comprises a serum of the subject.

Assignees

• Univ Sapporo Medical
• Nipro Corp

Inventors

• Honmou Osamu
• Yoshikawa Yoshihiro
• Morikawa Naomi

Classifications

• A61K35/28 Primary

  Bone marrow; Haematopoietic stem cells; Mesenchymal stem cells of any origin, e.g. adipose-derived stem cells · CPC title

• A61M1/0272

  Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging · CPC title

• A61M2202/10

  Bone-marrow · CPC title

• C12N5/0663 Primary

  Bone marrow mesenchymal stem cells (BM-MSC) · CPC title

• C12M1/28

  being part of container · CPC title