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Full-Text Articles in Medicine and Health Sciences
Memo Has A Novel Role In S1p Signaling And Crucial For Vascular Development, Shunya Kondo, Alessia Bottos, Jeremy Allegood, Regis Masson, Francisca G. Maurer, Christel Genoud, Patrick Kaeser, Andrea Huwiler, Masato Murakami, Sarah Spiegel, Nancy E. Hynes
Memo Has A Novel Role In S1p Signaling And Crucial For Vascular Development, Shunya Kondo, Alessia Bottos, Jeremy Allegood, Regis Masson, Francisca G. Maurer, Christel Genoud, Patrick Kaeser, Andrea Huwiler, Masato Murakami, Sarah Spiegel, Nancy E. Hynes
Biochemistry and Molecular Biology Publications
Memo is a conserved protein that was identified as an essential mediator of tumor cell motility induced by receptor tyrosine kinase activation. Here we show that Memo null mouse embryonic fibroblasts (MEFs) are impaired in PDGF-induced migration and this is due to a defect in sphingosine-1-phosphate (S1P) signaling. S1P is a bioactive phospholipid produced in response to multiple stimuli, which regulates many cellular processes. S1P is secreted to the extracellular milieu where it exerts its function by binding a family of G-protein coupled receptors (S1PRs), causing their activation in an autocrine or paracrine manner. The process, termed cell-autonomous S1PR signaling, …
Otitis Media In Sperm-Associated Antigen 6 (Spag6)-Deficient Mice, Xiaofei Li, Lei Xu, Jianfeng Li, Boqin Li, Xiaohui Bai, Jerome F. Strauss Iii, Zhibing Zhang, Haibo Wang
Otitis Media In Sperm-Associated Antigen 6 (Spag6)-Deficient Mice, Xiaofei Li, Lei Xu, Jianfeng Li, Boqin Li, Xiaohui Bai, Jerome F. Strauss Iii, Zhibing Zhang, Haibo Wang
Biochemistry and Molecular Biology Publications
Mammalian SPAG6 protein is localized to the axoneme central apparatus, and it is required for normal flagella and cilia motility. Recent studies demonstrated that the protein also regulates ciliogenesis and cilia polarity in the epithelial cells of brain ventricles and trachea. Motile cilia are also present in the epithelial cells of the middle ear and Eustachian tubes, where the ciliary system participates in the movement of serous fluid and mucus in the middle ear. Cilia defects are associated with otitis media (OM), presumably due to an inability to efficiently transport fluid, mucus and particles including microorganisms. We investigated the potential …