Patents by Inventor Colin A. B. Jahoda

Colin A. B. Jahoda 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).

  • Methods for compact aggregation of dermal cells
    Patent number: 9550976
    Abstract: The invention provides for a method for aggregating dermal papilla cells or dermal sheath cells or a combination thereof, the method comprising: growing dermal papilla cells or dermal sheath cells or a combination thereof in suspension culture; and contacting the culture with an effective amount of an enzyme, wherein a substrate of the enzyme is an extracellular matrix molecule in the suspension culture, so as to aggregate dermal papilla cells or dermal sheath cells. The culture may be a hanging drop culture and the enzyme may be a hyaluronidase.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 24, 2017
    Assignees: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, DURHAM UNIVERSITY
    Inventors: Angela M. Christiano, Colin A. B. Jahoda
  • METHODS FOR COMPACT AGGREGATION OF DERMAL CELLS
    Publication number: 20160068807
    Abstract: The invention provides for a method for aggregating dermal papilla cells or dermal sheath cells or a combination thereof, the method comprising: growing dermal papilla cells or dermal sheath cells or a combination thereof in suspension culture; and contacting the culture with an effective amount of an enzyme, wherein a substrate of the enzyme is an extracellular matrix molecule in the suspension culture, so as to aggregate dermal papilla cells or dermal sheath cells. The culture may be a hanging drop culture and the enzyme may be a hyaluronidase.
    Type: Application
    Filed: August 7, 2015
    Publication date: March 10, 2016
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Angela M. Christiano, Colin A.B. Jahoda
  • Methods for compact aggregation of dermal cells
    Patent number: 9109204
    Abstract: The invention provides for a method for aggregating dermal papilla cells or dermal sheath cells or a combination thereof, the method comprising: growing dermal papilla cells or dermal sheath cells or a combination thereof in suspension culture; and contacting the culture with an effective amount of an enzyme, wherein a substrate of the enzyme is an extracellular matrix molecule in the suspension culture, so as to aggregate dermal papilla cells or dermal sheath cells. The culture may be a hanging drop culture and the enzyme may be a hyaluronidase.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: August 18, 2015
    Assignees: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, DURHAM UNIVERSITY
    Inventors: Angela M. Christiano, Colin A. B. Jahoda
  • METHODS FOR COMPACT AGGREGATION OF DERMAL CELLS
    Publication number: 20100303767
    Abstract: The invention provides for a method for aggregating dermal papilla cells or dermal sheath cells or a combination thereof, the method comprising: growing dermal papilla cells or dermal sheath cells or a combination thereof in suspension culture; and contacting the culture with an effective amount of an enzyme, wherein a substrate of the enzyme is an extracellular matrix molecule in the suspension culture, so as to aggregate dermal papilla cells or dermal sheath cells. The culture may be a hanging drop culture and the enzyme may be a hyaluronidase.
    Type: Application
    Filed: February 28, 2007
    Publication date: December 2, 2010
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Angela M. Christiano, Colin A.B. Jahoda
  • Hair growth composition
    Patent number: 5091173
    Abstract: A composition suitable for topical application to mammalian skin or hair comprising an amount of a cell-free supernatant from a culture of dermal papilla cells sufficient to increase hair growth in mammals.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: February 25, 1992
    Assignee: The University of Dundee
    Inventors: Travis E. J. Buultjens, Stephen W. Hellens, Colin A. B. Jahoda, Roy F. Oliver, Anne P. Withers
  • Composition for the regulation of hair growth
    Patent number: 5068315
    Abstract: Disclosed is a composition for regulating hair growth comprising a safe and effective amount of a polypeptide having the structure of those derived from dermal papilla cells with characteristics of apparent isoelectric pH/molecular weight selected from the group consisting of pI 5.1/45kD, pI 5.2/43kD, pI 5.2/40kD, pI 7.3/25kD, pI 7.4/25kD, or active fragment of these polypeptides, and mixtures thereof; and a pharmaceutically-acceptable carrier.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: November 26, 1991
    Assignee: University of Dundee
    Inventors: Travis E. J. Buultjens, Colin A. B. Jahoda, Roy F. Oliver
  • Stimulation of hair growth
    Patent number: 4919664
    Abstract: The present invention relates to a method of stimulating hair growth in part of the skin of a mammal. The method comprises selecting lower follicular dermal cells and culturing them. An opening is then formed in the skin and the cultured dermal cells introduced through the opening in the outer epidermis layer of the skin into contact with the dermis, with said cultured dermal cells in association with epidermis cells.The invention also provides a hair growth stimulating combination comprising cultured lower follicular dermal cells in admixture with epidermis cells, as well as such cultured dermal cells for use in the preparation of an injection composition for stimulating hair growth in human skin.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: April 24, 1990
    Inventors: Roy F. Oliver, Colin A. B. Jahoda