title: Sox9 is expressed in mouse multipotent retinal progenitor cells and functions in Müller glial cell development.
abstract: It is widely accepted that the process of retinal cell fate determination is under tight transcriptional control mediated by a combinatorial code of transcription factors. However, the exact repertoire of factors necessary for the genesis of each retinal cell type remains to be fully defined. Here we show that the HMG-box transcription factor, Sox9, is expressed in multipotent mouse retinal progenitor cells throughout retinogenesis. We also find that Sox9 is downregulated in differentiating neuronal populations, yet expression in Müller glial cells persists into adulthood. Furthermore, by employing a conditional knockout approach, we show that Sox9 is essential for the differentiation and/or survival of postnatal Müller glial cells.
authors.affiliation: Program in Developmental Biology, Baylor College of Medicine, Houston, Texas 77030, USA.
authors.forename: Ross A
authors.initials: RA
authors.lastname: Poché
authors.forename: Yasuhide
authors.initials: Y
authors.lastname: Furuta
authors.forename: Marie-Christine
authors.initials: MC
authors.lastname: Chaboissier
authors.forename: Andreas
authors.initials: A
authors.lastname: Schedl
authors.forename: Richard R
authors.initials: RR
authors.lastname: Behringer
mesh_terms: D000818:Animals; D015415:Biomarkers / Q000378:metabolism; D005136:Eye Proteins / Q000235:genetics / Q000378:metabolism; D006609:High Mobility Group Proteins / Q000235:genetics / Q000378:metabolism*; D018398:Homeodomain Proteins / Q000235:genetics / Q000378:metabolism; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D018345:Mice, Knockout; D039902:Multipotent Stem Cells / Q000166:cytology / Q000378:metabolism*; D009154:Mutation; D009457:Neuroglia / Q000166:cytology / Q000502:physiology*; D000071841:PAX6 Transcription Factor; D051761:Paired Box Transcription Factors / Q000235:genetics / Q000378:metabolism; D012097:Repressor Proteins / Q000235:genetics / Q000378:metabolism; D012160:Retina / Q000166:cytology / Q000502:physiology; D055758:SOX9 Transcription Factor; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*
chemical_list: D015415:Biomarkers; D005136:Eye Proteins; D006609:High Mobility Group Proteins; D018398:Homeodomain Proteins; D000071841:PAX6 Transcription Factor; C000605730:PAX6 protein, human; D051761:Paired Box Transcription Factors; C000605732:Pax6 protein, mouse; D012097:Repressor Proteins; D055758:SOX9 Transcription Factor; C527932:SOX9 protein, human; C527933:Sox9 protein, mouse; D014157:Transcription Factors