Purified amniotic membrane compositions and methods of use
First Claim
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1. A pharmaceutical composition comprising:
- (a) an AM preparation prepared from pulverized or ground amniotic membrane isolated from placenta that is frozen or previously frozen, comprising;
i. high molecular weight hyaluronan (HA) that is cross-linked by a covalent bond to the heavy chain of inter-α
-trypsin inhibitor (Iα
I), the high molecular weight HA having a molecular weight greater than 1000 kDa;
ii. tumor necrosis factor-stimulated gene 6 (TSG-6);
iii. pentraxin (PTX-3); and
iv. thrombospondin (TSP-1); and
(b) a pharmaceutically acceptable diluent, excipient, or carrier;
wherein the ratio of total protein to HA in the pharmaceutical composition is less than 100 parts protein;
1 part HA.
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Abstract
Compositions having a combination of specific biological components have been found to exert a number of useful effects in mammalian cells, including modulating TGF β signaling, apoptosis, and proliferation of mammalian cells, as well as decreasing inflammation in mice. These components can be obtained commercially, or can be prepared from biological tissues such as placental tissues. Placental amniotic membrane (AM) preparations described herein include AM pieces, AM extracts, AM jelly, AM stroma, and mixtures of these compositions with additional components. The compositions can be used to treat various diseases, such as wound healing, inflammation and angiogenesis-related diseases.
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Citations
11 Claims
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1. A pharmaceutical composition comprising:
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(a) an AM preparation prepared from pulverized or ground amniotic membrane isolated from placenta that is frozen or previously frozen, comprising; i. high molecular weight hyaluronan (HA) that is cross-linked by a covalent bond to the heavy chain of inter-α
-trypsin inhibitor (Iα
I), the high molecular weight HA having a molecular weight greater than 1000 kDa;ii. tumor necrosis factor-stimulated gene 6 (TSG-6); iii. pentraxin (PTX-3); and iv. thrombospondin (TSP-1); and (b) a pharmaceutically acceptable diluent, excipient, or carrier; wherein the ratio of total protein to HA in the pharmaceutical composition is less than 100 parts protein;
1 part HA.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification