Cell differntiation inhibiting agent, cell culture method using the same, culture medium, and cultured cell line
申请人:Miyabayashi Tomoyuki
公开号:US20050153941A1
公开(公告)日:2005-07-14
The object of the present invention is to provide a differentiation inhibiting agent which allows culture of a stem cell or an embryonic stem cell in an undifferentiated state without use of any feeder cell, a method for culturing using the same, a cell culture liquid using the same, and a cell prepared by culturing using this differentiation inhibiting agent. The present invention provides a differentiation inhibiting agent which comprises a low molecular weight compound, especially a tetrahydroisoquinoline derivative, as an active ingredient; a method for safely culturing a stem cell in large scale in undifferentiated state in the absence of feeder cell which comprises culturing a stem cell by using a tetrahydroisoquinoline derivative; a culture liquid for stem cells comprising a tetrahydroisoquinoline derivative; and a cell which is obtained by culture using a tetrahydroisoquinoline derivative as a differentiation inhibiting agent.
A new type of yellow dyes with general formula Q-CO--CO--X is disclosed. They can be used in photographic materials as antihalation dyes, acutance dyes or filter dyes. Preferably they are incorporated in UV sensitive contact materials for pre-press applications.
CELL DIFFERENTIATION SUPPRESSING AGENT, METHOD OF CULTURING CELLS USING THE SAME, CULTURE SOLUTION, AND CULTURED CELL LINE
申请人:Miyabayashi Tomoyuki
公开号:US20090155906A1
公开(公告)日:2009-06-18
The object of the present invention is to provide a differentiation inhibiting agent which allows culture of a stem cell or an embryonic stem cell in an undifferentiated state without use of any feeder cell, a method for culturing using the same, a cell culture liquid using the same, and a cell prepared by culturing using this differentiation inhibiting agent. The present invention provides a differentiation inhibiting agent which comprises a low molecular weight compound, especially a tetrahydroisoquinoline derivative, as an active ingredient; a method for safely culturing a stem cell in large scale in undifferentiated state in the absence of feeder cell which comprises culturing a stem cell by using a tetrahydroisoquinoline derivative; a culture liquid for stem cells comprising a tetrahydroisoquinoline derivative; and a cell which is obtained by culture using a tetrahydroisoquinoline derivative as a differentiation inhibiting agent.
Methods and agents are disclosed for modulating the interaction of β-catenin or γ-catenin with CBP or p300. Agents that increase the binding of CBP to β-catenin are associated with enhancing the β-catenin-related proliferation of adult stem cells, including hematopoietic stem cells, neural stem cells, skin stem cells, and pancreatic stem cells, as well as embryonic stem cells.