Patents by Inventor Chengcheng Zhang

Chengcheng Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8506955
    Abstract: Methods and kits for propagating hematopoietic stem cells are provided. The methods comprise culturing cells in medium comprising one or more angiopoietin-like proteins, under conditions sufficient for expansion of HSCs. Angiopoietin-like proteins include angiopoietin-like protein 2, angiopoietin-like protein 3, angiopoietin-like protein 4, angiopoietin-like protein 5, angiopoietin-like protein 7, and microfibrillar-associated glycoprotein (Mfap4). Methods for identifying hematopoietic stem cells are provided and isolated hematopoietic stem cells are also provided.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: August 13, 2013
    Assignee: Whitehead Institute for Biomedical Research
    Inventors: Chengcheng Zhang, Harvey F. Lodish
  • Publication number: 20110196343
    Abstract: Methods and kits for propagating hematopoietic stem cells are provided. The methods comprise culturing cells in medium comprising one or more angiopoietin-like proteins, under conditions sufficient for expansion of HSCs. Angiopoietin-like proteins include angiopoietin-like protein 2, angiopoietin-like protein 3, angiopoietin-like protein 4, angiopoietin-like protein 5, angiopoietin-like protein 7, and microfibrillar-associated glycoprotein (Mfap4). Methods for identifying hematopoietic stem cells are provided and isolated hematopoietic stem cells are also provided.
    Type: Application
    Filed: August 10, 2010
    Publication date: August 11, 2011
    Applicant: WHITEHEAD INSTITUTE FOR BIOMEDICAL RESEARCH
    Inventors: Chengcheng Zhang, Harvey F. Lodish
  • Publication number: 20110136230
    Abstract: Hematopoietic stem cells and methods for ex vivo expansion of hematopoietic stem cells are provided. The methods comprise culturing the cells in a media containing an effective amount insulin-like growth factor(IGF), fibroblast growth factor (FGF), thrombopoietin (TPO), and stem cell factor (SCF), under conditions sufficient for expansion of said cells. Methods for identifying expanded hematopoeitc stem cells and kits for ex vivo expansion of hematopoietic stem cells are also provided.
    Type: Application
    Filed: July 6, 2010
    Publication date: June 9, 2011
    Inventors: Chengcheng Zhang, Harvey Lodish
  • Publication number: 20110117061
    Abstract: Methods and kits for expanding the number of hematopoietic stem cells are provided. The methods comprise incubating cells in medium comprising isolated IGFBP-2 and an angiopoietin-like protein (Angptl). Expanded HSCs are provided as well as culture media and kits for the expansion of human HSCs in a defined medium. Methods of administering expanded human HSCs to and individual are provided as well as methods of treating an individual by administering certain growth factors and cytokines.
    Type: Application
    Filed: May 2, 2008
    Publication date: May 19, 2011
    Inventors: ChengCheng Zhang, Harvey Lodish
  • Patent number: 7807464
    Abstract: Methods and kits for propagating hematopoietic stem cells are provided. The methods comprise culturing cells in medium comprising one or more angiopoietin-like proteins, under conditions sufficient for expansion of HSCs. Angiopoietin-like proteins include angiopoietin-like protein 2, angiopoietin-like protein 3, angiopoietin-like protein 4, angiopoietin-like protein 5, angiopoietin-like protein 7, and microfibrillar-associated glycoprotein (Mfap4). Methods for identifying hematopoietic stem cells are provided and isolated hematopoietic stem cells are also provided.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: October 5, 2010
    Assignee: Whitehead Institute for Biomedical Research
    Inventors: Chengcheng Zhang, Harvey F. Lodish
  • Patent number: 7767453
    Abstract: Hematopoietic stem cells and methods for ex vivo expansion of hematopoietic stem cells are provided. The methods comprise culturing the cells in a media containing an effective amount insulin-like growth factor (IGF), fibroblast growth factor (FGF), thrombopoietin (TPO), and stem cell factor (SCF), under conditions sufficient for expansion of said cells. Methods for identifying expanded hematopoeitc stem cells and kits for ex vivo expansion of hematopoietic stem cells are also provided.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: August 3, 2010
    Assignee: Whitehead Institute for Biomedical Research
    Inventors: Chengcheng Zhang, Harvey Lodish
  • Publication number: 20070020757
    Abstract: Methods and kits for propagating hematopoietic stem cells are provided. The methods comprise culturing cells in medium comprising one or more angiopoietin-like proteins, under conditions sufficient for expansion of HSCs. Angiopoietin-like proteins include angiopoietin-like protein 2, angiopoietin-like protein 3, angiopoietin-like protein 4, angiopoietin-like protein 5, angiopoietin-like protein 7, and microfibrillar-associated glycoprotein (Mfap4). Methods for identifying hematopoietic stem cells are provided and isolated hematopoietic stem cells are also provided.
    Type: Application
    Filed: May 23, 2006
    Publication date: January 25, 2007
    Applicant: WHITEHEAD INSTITUTE FOR BIOMEDICAL RESEARCH
    Inventors: Chengcheng Zhang, Harvey Lodish
  • Publication number: 20060115898
    Abstract: Hematopoietic stem cells and methods for ex vivo expansion of hematopoietic stem cells are provided. The methods comprise culturing the cells in a media containing an effective amount insulin-like growth factor (IGF), fibroblast growth factor (FGF), thrombopoietin (TPO), and stem cell factor (SCF), under conditions sufficient for expansion of said cells. Methods for identifying expanded hematopoeitc stem cells and kits for ex vivo expansion of hematopoietic stem cells are also provided.
    Type: Application
    Filed: October 20, 2005
    Publication date: June 1, 2006
    Inventors: Chengcheng Zhang, Harvey Lodish