IP Library › Granted Patent US 10,463,764
Granted Patent B2
US 10,463,764 · App. 15/585,653 · Granted Nov 5, 2019

3D tissue-engineered bone marrow for personalized therapy and drug development

Inventors: Abdel Kareem Azab (St. Louis, MO); Pilar de la Puente (St. Louis, MO)
Assignee: WASHINGTON UNIVERSITY
A61L27/3834A61L27/225A61L27/3608A61L27/3804A61L27/3808A61L27/3847A61L27/54C12N5/0669C12N5/0694G01N33/5011G01N33/5082G01N33/5088A61L2300/414A61L2300/418A61L2300/42A61L2300/426A61L2300/64A61L2430/02A61L2430/40C12N2502/30C12N2513/00C12N2533/56
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Quick Facts
Patent No.
US 10,463,764
App. No.
15/585,653
Granted
Nov 5, 2019
Kind
B2
Abstract

A tissue-engineered bone marrow for personalized therapy of a patient is described. The tissue-engineered bone marrow includes an autologous fibrin scaffold and a plurality of patient-derived cells isolated from the patient's bone marrow. The autologous fibrin scaffold is made using fibrinogen isolated from the patient's bone marrow. The plurality of patient-derived cells may include cells associated with a hematological or metastatic malignancy, bone marrow stromal cells, and endothelial cells. The patient-derived cells are cultured on the autologous fibrin scaffold to create the tissue-engineered bone marrow. The tissue-engineered bone marrow may be used for personalized drug screening.

Claims (20)

1. A tissue-engineered bone marrow for personalized therapy of a patient comprising:

an autologous fibrin scaffold comprising fibrinogen isolated from the patient's bone marrow; and

a plurality of patient-derived cells isolated from the patient's bone marrow, comprising cells associated with a hematological or metastatic malignancy, wherein the cells associated with a hematological or metastatic malignancy are selected from acute lymphoblastic leukemia cells, acute myelogenous leukemia cells, chronic lymphocytic leukemia cells, acute monocytic leukemia cells, Hodgkin's lymphoma cells, non-Hodgkin's lymphoma cells, multiple myeloma cells, metastatic cells, and solid tumor cells,

wherein the patient-derived cells are cultured on the autologous fibrin scaffold.

2. The tissue-engineered bone marrow of claim 1 , wherein the autologous fibrin scaffold further comprises an antifibrinolytic agent.

3. The tissue-engineered bone marrow of claim 1 , wherein the autologous fibrin scaffold further comprises a patient-derived culture compound extracted from the patient's bone marrow, the patient-derived culture compound selected from the group consisting of: fibronectin, at least one growth factor, platelets, at least one cytokine, at least one enzyme, and combinations thereof.

4. The tissue-engineered bone marrow of claim 1 , further comprising a drug.

5. The tissue-engineered bone marrow of claim 4 , wherein the autologous fibrin scaffold further comprises a gradient of oxygen and a gradient of the drug.

6. The tissue-engineered bone marrow of claim 1 , wherein the cells associated with a hematological or metastatic malignancy are multiple myeloma cells.

7. A method of preparing a tissue-engineered bone marrow for personalized therapy of a patient comprising:

aspirating the patient's bone marrow;

separating a cellular fraction and a supernatant;

isolating a plurality of patient-derived cells from the cellular fraction, the patient-derived cells selected from the group consisting of cells associated with a hematological or metastatic malignancy, bone marrow stromal cells, endothelial cells, and combinations thereof;

creating an autologous fibrin scaffold comprising fibrinogen isolated from the supernatant; and

culturing the plurality of patient-derived cells on the fibrin scaffold.

8. The method of claim 7 , wherein the autologous fibrin scaffold further comprises an antifibrinolytic agent.

9. The method of claim 7 , wherein the autologous fibrin scaffold further comprises a patient-derived culture compound isolated from the supernatant, the patient-derived culture compound selected from the group consisting of: fibronectin, at least one growth factor, platelets, at least one cytokine, at least one enzyme, and combinations thereof.

10. The method of claim 7 , further comprising administering a dose of a drug to the tissue-engineered bone marrow.

11. The method of claim 10 , wherein the autologous fibrin scaffold further comprises a gradient of oxygen and a gradient of the drug.

12. The method of claim 7 , wherein the cells associated with a hematological or metastatic malignancy are selected from acute lymphoblastic leukemia cells, acute myelogenous leukemia cells, chronic lymphocytic leukemia cells, acute monocytic leukemia cells, Hodgkin's lymphoma cells, non-Hodgkin's lymphoma cells, multiple myeloma cells, metastatic cells, and solid tumor cells.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2018
From: DE LA PUENTE, PILAR; AZAB, ABDEL KAREEM
To: WASHINGTON UNIVERSITY
Reel/Frame 045351/0891 →
Continuity (3)
Division 14942543 · Nov 16, 2015
Provisional Application 62079868 · Nov 14, 2014
Related Publication 20170232146A1 · Aug 17, 2017