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Mesenchymal Stem Cells and Uses Therefor

a technology of stem cells and mesenchymal cells, applied in the field of mesenchymal stem cells, can solve the problems of limiting the ability of the recipient immune system to recognize and reject allogeneic cells

Inactive Publication Date: 2011-02-03
MESOBLAST INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text discusses the interactions of mesenchymal stem cells with different immune cells and the factors they produce. This suggests that mesenchymal stem cells can be used to treat diseases involving the immune system or inflammation. They also produce vascular endothelial growth factor, which promotes angiogenesis, and interferon-beta, which promotes tumor suppression and immunity against viral infection. The technical effect of this patent is the discovery of the potential therapeutic benefits of mesenchymal stem cells in regulating the immune response and promoting tissue regeneration.

Problems solved by technology

These immunological properties of MSCs may enhance their transplant engraftment and limit the ability of the recipient immune system to recognize and reject allogeneic cells following transplantation.

Method used

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  • Mesenchymal Stem Cells and Uses Therefor
  • Mesenchymal Stem Cells and Uses Therefor
  • Mesenchymal Stem Cells and Uses Therefor

Examples

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example 1

[0095]Materials and Methods

[0096]Culture of Human MSCs

[0097]Human MSCs were cultured as described by Pittenger et al., Science, Vol. 284, pg. 143 (1999). Briefly, marrow samples were collected from the iliac crest of anonymous donors following informed consent by Poietics Technologies, Div of Cambrex Biosciences. MSCs were cultured in complete Dulbecco's Modified Eagle's Medium-Low Glucose (Life Technologies, Carlsbad, Calif.) containing 1% antibiotic-antimyotic solution (Invitrogen, Carlsbad, Calif.) and 10% fetal bovine serum (FBS, JRH BioSciences, Lenexa, Kans.). MSCs grew as an adherent monolayer and were detached with trypsin / EDTA (0.05% trypsin at 37° C. for 3 minutes). All MSCs used were previously characterized for multilineage potential and retained the capacity to differentiate into mesenchymal lineages (chondrocytic, adipogenic, and osteogenic) (Pittenger, et al., Science, Vol. 284, pg. 143 (1999)).

[0098]Isolation of Dendritic Cells

[0099]Peripheral blood mononuclear cells...

example 2

[0124]Mesenchymal stem cells were given to a 33-year-old female patient suffering from severe Grade IV gastrointestinal graft-versus-host disease (GVHD). The patient was refractory to all other GVHD treatments. Endoscopic views of the patient's colon showed areas of ulceration and inflammation prior to treatment. Histology of the patient's colon showed that the graft-versus-host disease had destroyed the vast majority of the patient's intestinal crypts, prior to treatment.

[0125]The patient was given an intravenous infusion of allogeneic mesenchymal stem cells in 50 ml of Plasma Lyte A in an amount of 3×106 cells per kilogram of body weight.

[0126]The patient was evaluated at two weeks post-infusion. At two weeks post-infusion, an endoscopic view of the patient's colon showed that the areas of inflammation and ulceration visible prior to treatment were resolved. In addition, a biopsy of the patient's colon showed significant regeneration of intestinal crypts. Thus, the administration ...

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Abstract

Methods of treating autoimmune diseases, allergic responses, cancer, or inflammatory diseases in an animal, promoting would healing, repairing epithelial damage and promoting angiogenesis in an organ or tissue of an animal by administering to the animal mesenchymal stem cells in an effective amount.

Description

RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 11 / 541,853, filed Oct. 2, 2006, which is a continuation-in-part of U.S. patent application Ser. No. 11 / 080,298, filed Mar. 15, 2005, which claims priority based on U.S. Provisional Patent Application Ser. No. 60 / 555,118, filed Mar. 22, 2004, the contents of which are incorporated by reference in their entireties.FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]The invention was made with Government support under Contract No. N66001-02-C-8068 awarded by the Department of the Navy. The Government has certain rights in this invention.BACKGROUND OF THE INVENTION[0003]This invention relates to mesenchymal stem cells. More particularly, this invention relates to novel uses for mesenchymal stem cells, including promoting angiogenesis in various tissues and organs, treating autoimmune diseases, treating allergic responses, treating cancer, treating inflammatory diseases and disorders, promoting ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K35/12A61P29/00A61P35/00A61K35/14A61K35/28C12N5/00C12N5/0775H04Q7/20
CPCA61K35/28C12N5/0663A61K38/2066A61K2035/124A61K38/2026C12N5/0675C12N5/0662C12N5/0664C12N5/0665C12N5/0666C12N5/0667C12N5/0668A61P1/00A61P1/02A61P1/04A61P11/00A61P13/08A61P17/00A61P17/02A61P17/06A61P17/14A61P19/02A61P19/08A61P25/00A61P27/02A61P29/00A61P35/00A61P37/00A61P37/02A61P37/06A61P37/08A61P43/00A61P5/14A61P7/04A61P7/06A61P9/00A61P3/10Y02A50/30A61K35/12A61K45/06
Inventor AGGARWAL, SUDEEPTAPITTENGER, MARK F.VARNEY, TIMOTHY
Owner MESOBLAST INT
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