IP Library › Granted Patent US 9,675,732
Granted Patent B2
US 9,675,732 · App. 14/942,543 · Granted Jun 13, 2017

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
A61L27/225A61L27/3608A61L27/3804A61L27/3808A61L27/3834A61L27/54C12N5/0669C12N5/0694G01N33/5011G01N33/5082A61L2300/414A61L2300/42A61L2300/426C12N2502/30C12N2513/00C12N2533/56
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Quick Facts
Patent No.
US 9,675,732
App. No.
14/942,543
Granted
Jun 13, 2017
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 (12)

1. A method of drug screening using a prepared tissue-engineered bone marrow for personalized therapy of a patient comprising:

applying a drug at a dose to the tissue-engineered bone marrow, the tissue-engineered bone marrow 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, 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,

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

predicting the drug response in the patient based on the effectiveness of the drug and the dose in the tissue-engineered bone marrow.

2. The method 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.

3. The method of claim 1 , wherein the autologous fibrin scaffold further comprises a gradient of oxygen and the drug.

4. The method of claim 1 , 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.

5. The method of claim 1 , wherein the effectiveness of the drug and the dose is determined by drug uptake by the plurality of cells or cell death of the cells associated with a hematological or metastatic malignancy.

6. The method of claim 1 , wherein predicting the drug response in the patient comprises determining patient specific drug resistance.

7. The method of claim 1 , wherein the patient has a disease selected from the group consisting of hematologic malignancies, multiple myeloma, and bone metastasis of solid tumors.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE INVENTOR NAME PREVIOUSLY RECORDED AT REEL: 037635 FRAME: 0424. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 2, 2016
From: AZAB, ABDEL KAREEM; DE LA PUENTE, PILAR
To: WASHINGTON UNIVERSITY
Reel/Frame 037682/0791 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2016
From: AZAB, ABDEL KAREEN; DE LA PUENTE, PILAR
To: WASHINGTON UNIVERSITY
Reel/Frame 037635/0424 →
Continuity (2)
Provisional Application 62079868 · Nov 14, 2014
Related Publication 20160136327A1 · May 19, 2016