Abstract: The present invention relates to the use of the biomarker Flattop (Fltp) for distinguishing mature ? cells from immature progenitor ? cells. The present invention further relates to a method for distinguishing a mature ? cell from an immature progenitor ? cell, the method comprising: determining the presence or absence of the biomarker Flattop (Fltp) in a ? cell; wherein the presence of Fltp in the cell indicates that the cell is a mature ? cell and wherein the absence of Fltp in the cell indicates that the cell is an immature progenitor ? cell. Furthermore, the present invention relates to a method of identifying a compound suitable for differentiating immature progenitor ? cells into mature ? cells as well as to a method of identifying a compound suitable for preventing the de-differentiating of mature ? cells. The present invention additionally relates to a method of differentiating immature progenitor ? cells into mature ? cells as well as to a method of preventing de-differentiating of mature ? cells.

Abstract: The present invention relates to the use of the biomarker Flattop (Fltp) for distinguishing mature ? cells from immature progenitor ? cells. The present invention further relates to a method for distinguishing a mature ? cell from an immature progenitor ? cell, the method comprising: determining the presence or absence of the biomarker Flattop (Fltp) in a ? cell; wherein the presence of Fltp in the cell indicates that the cell is a mature ? cell and wherein the absence of Fltp in the cell indicates that the cell is an immature progenitor ? cell. Furthermore, the present invention relates to a method of identifying a compound suitable for differentiating immature progenitor ? cells into mature ? cells as well as to a method of identifying a compound suitable for preventing the de-differentiating of mature ? cells. The present invention additionally relates to a method of differentiating immature progenitor ? cells into mature ? cells as well as to a method of preventing de-differentiating of mature ? cells.

Abstract: The present invention relates to the use of the biomarker Flattop (Fltp) for distinguishing mature ? cells from immature progenitor ? cells. The present invention further relates to a method for distinguishing a mature ? cell from an immature progenitor ? cell, the method comprising: determining the presence or absence of the biomarker Flattop (Fltp) in a ? cell; wherein the presence of Fltp in the cell indicates that the cell is a mature ? cell and wherein the absence of Fltp in the cell indicates that the cell is an immature progenitor ? cell. Furthermore, the present invention relates to a method of identifying a compound suitable for differentiating immature progenitor ? cells into mature ? cells as well as to a method of identifying a compound suitable for preventing the de-differentiating of mature ? cells.

Abstract: The present invention relates to the use of the biomarker Flattop (Fltp) for distinguishing mature ? cells from immature progenitor ? cells. The present invention further relates to a method for distinguishing a mature ? cell from an immature progenitor ? cell, the method comprising: determining the presence or absence of the biomarker Flattop (Fltp) in a ? cell; wherein the presence of Fltp in the cell indicates that the cell is a mature ? cell and wherein the absence of Fltp in the cell indicates that the cell is an immature progenitor ? cell. Furthermore, the present invention relates to a method of identifying a compound suitable for differentiating immature progenitor ? cells into mature ? cells as well as to a method of identifying a compound suitable for preventing the de-differentiating of mature ? cells.