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Postpartum cells derived from placental tissue, and methods of making and using the same

  • US 10,383,898 B2
  • Filed: 02/27/2017
  • Issued: 08/20/2019
  • Est. Priority Date: 06/27/2003
  • Status: Expired due to Fees
First Claim
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1. A method of producing a population of placenta-derived cells by expanding an isolated human placenta-derived cell in culture and obtaining a homogenous population of placenta-derived cells,wherein said isolated human placenta-derived cell is obtained from human postpartum placenta substantially free of blood, andwherein said cell population self-renews and expands in culture, is multipotent, and has the following characteristics:

  • a) produces CD10, CD13, CD44, CD73, CD90, PDGFr-alpha, PD-L2, HLA-A,B,C, and granulocyte chemotactic protein-2 (GCP-2);

    b) does not produce CD31, CD34, CD45, CD80, CD86, CD117, CD141, CD178, B7-H2, HLA-G or HLA-DR-DP,DQ;

    c) does not produce GRO-alpha and oxidized low density lipoprotein receptor, as detected by flow cytometry;

    d) expresses, relative to a human fibroblast, mesenchymal stem cell, or iliac crest bone marrow cell, increased levels of oxidized low density lipoprotein receptor 1 mRNA and renin; and

    e) has the ability to undergo at least 40 population doublings in culture.

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