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Mech Dev. 1999 Jun;84(1-2):121-5.

Developmental expression analysis of murine autotaxin (ATX).

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Institute of Cellbiochemistry and Clinical Neurobiology, University Clinic Eppendorf, Hamburg, Germany.


The murine homologue of the human motility-stimulating protein autotaxin (ATX) was identified as a BMP2 upregulated gene by subtractive cloning from mesenchymal progenitors C3H10T1/2 (Bächner, D., Ahrens, M., Betat, N., Schröder, D., Hoffmann. A., Lauber, J., Steinert, P., Flohe, L., Gross, G., 1998. Bmp-2 downstream targets in mesenchymal development identified by subtractive cloning from recombinant mesenchymal progenitors (C3H10T1/2). Dev. Dyn. 213, 398-411). ATX mRNA transcription is induced during BMP2 mediated osteo-/chondrogenic differentiation in vitro several orders of magnitude. To delineate a potential role for ATX in osteo-/chondrogenic development, its expression pattern during murine embryogenesis was examined in comparison with Col1a1 and Col2a1, a marker either of osteoblast, odontoblast and tendon or of chondrocyte development, respectively. Localization of murine ATX was first observed in the floor plate of the neural tube at day 9.5 of mouse embryonic development. Later, enhanced ATX expression levels were observed in proliferating subepithelial mesenchyme, during osteo-/chondrogenic and tooth development, in choroid plexus epithelium, in late kidney development, and in smooth muscles of the ductus deferens and the bladder.

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