title: Tip110 maintains expression of pluripotent factors in and pluripotency of human embryonic stem cells.
abstract: HIV-1 Tat-interacting protein of 110 kDa [Tip110; p110(nrb)/SART3/p110] is an RNA binding nuclear protein implicated in regulation of HIV-1 gene and host gene transcription, pre-mRNA splicing, and cancer immunology. Recently, we demonstrated a role for Tip110 in regulation of hematopoiesis. Here, we show that TIP110 is also expressed in human embryonic stem cells (hESCs) and expression was decreased with differentiation of these ESCs. TIP110 was found, through up- and down-modulation of expression of Tip110, to be important in maintaining pluripotent factor (NANOG, OCT4, and SOX2) expression in and pluripotency of hESCs, although the mechanisms involved and whether the Tip110 effects are direct remain to be determined.
authors: Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana 46202, USA. ying.liu@unthsc.edu
authors: Ying
authors: Y
authors: Liu
authors: Man-Ryul
authors: MR
authors: Lee
authors: Khalid
authors: K
authors: Timani
authors: Johnny J
authors: JJ
authors: He
authors: Hal E
authors: HE
authors: Broxmeyer
mesh_terms: D000951:Antigens, Neoplasm / Q000502:physiology*; D053595:Embryonic Stem Cells / Q000166:cytology*; D005786:Gene Expression Regulation; D006410:Hematopoiesis; D006801:Humans; D039904:Pluripotent Stem Cells / Q000166:cytology*; D016601:RNA-Binding Proteins / Q000502:physiology*; D014157:Transcription Factors / Q000032:analysis / Q000235:genetics
chemical_list: D000951:Antigens, Neoplasm; D016601:RNA-Binding Proteins; C416530:SART3 protein, human; D014157:Transcription Factors