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Last Updated: April 25, 2024

Claims for Patent: 9,713,629


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Summary for Patent: 9,713,629
Title:Compositions and methods for treating and preventing tissue injury and disease
Abstract: The present invention provides novel compositions comprising multipotent cells or microvascular tissue, wherein the cells or tissue has been sterilized and/or treated to inactivated viruses, and related methods of using these compositions to treat or prevent tissue injury or disease in an allogeneic subject.
Inventor(s): Peterson; Dale R. (Carlsbad, CA), Mattern; Ralph-Heiko (Ramona, CA), Wilson-Wirth; Corey (San Diego, CA), Ohashi; Kevin L. (Jamaica Plain, MA)
Assignee: MicroVascular Tissues, Inc. (Beverly, MA)
Application Number:14/429,511
Patent Claims:1. A method of preparing a composition comprising processed microvascular tissue, wherein the composition has angiogenic or anti-inflammatory activity, the method comprising: (a) dissociating a microvascular tissue sample obtained from a donor mammal to produce a composition comprising dissociated microvascular tissue; (b) removing one or more tissue components from the composition produced according to (a); (c) optionally drying, lyophilizing, or cryopreserving the composition following (b) or (d); and (d) sterilizing the composition following (b) or (c) and/or inactivating virus present in the composition following (b) or (c); wherein the composition resulting from (c) or (d) retains measurable angiogenic or anti-inflammatory activity; wherein: (i) the cells or tissue are not cultured; (ii) the method further comprises filtering the composition; (iii) the dissociation of (a) comprises contacting the tissue sample with one or more proteases; and (iv) the dissociation of (a) or the removing of (b) comprises ultrasonic agitation, centrifugation, filtration, or use of a density gradient; and further wherein (v) the one or more proteases does not comprise collagenase; (vi) the one or more proteases comprises or consists of: collagenase type 1 and either dispase or thermolysin; or MMP 2, MMP 14 and either dispase or thermolysin; or (vii) the microvascular tissue is adipose-derived tissue, and the ultrasonic agitation, centrifugation, filtration or use of a density gradient removes adipocytes from the composition produced according to (a).

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