Mamiko Yajima

Summary

Affiliation: Brown University
Country: USA

Publications

  1. pmc The DEAD-box RNA helicase Vasa functions in embryonic mitotic progression in the sea urchin
    Mamiko Yajima
    Department of Molecular Biology, Cellular Biology and Biochemistry, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 138:2217-22. 2011
  2. pmc Meiotic gene expression initiates during larval development in the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, Providence, RI 02912, USA
    Dev Dyn 242:155-63. 2013
  3. pmc Autonomy in specification of primordial germ cells and their passive translocation in the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 139:3786-94. 2012
  4. pmc ISWI contributes to ArsI insulator function in development of the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 139:3613-22. 2012
  5. pmc Small micromeres contribute to the germline in the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 138:237-43. 2011
  6. ncbi request reprint A switch in the cellular basis of skeletogenesis in late-stage sea urchin larvae
    Mamiko Yajima
    Tateyama Marine Laboratory, Marine and Coastal Research Center, Ochanomizu University, 11 Koyatsu, Tateyama, Chiba 294 0301, Japan
    Dev Biol 307:272-81. 2007
  7. pmc The 3'UTR of nanos2 directs enrichment in the germ cell lineage of the sea urchin
    Nathalie Oulhen
    Department of Molecular and Cell Biology and Biochemistry, Brown University, 185 Meeting Street, Providence, RI 02912, USA
    Dev Biol 377:275-83. 2013
  8. doi request reprint Implication of HpEts in gene regulatory networks responsible for specification of sea urchin skeletogenic primary mesenchyme cells
    Mamiko Yajima
    Department of Molecular and Cell Biology and Biochemistry, Brown University, Providence, RI 02912, USA
    Zoolog Sci 27:638-46. 2010
  9. pmc Nanos functions to maintain the fate of the small micromere lineage in the sea urchin embryo
    Celina E Juliano
    Department of Molecular and Cell Biology and Biochemistry, Brown University, 185 Meeting St, Providence, RI 02912, USA
    Dev Biol 337:220-32. 2010
  10. pmc Post-translational regulation by gustavus contributes to selective Vasa protein accumulation in multipotent cells during embryogenesis
    Eric A Gustafson
    Providence Institute of Molecular Oogenesis, Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI 02912, USA
    Dev Biol 349:440-50. 2011

Collaborators

Detail Information

Publications15

  1. pmc The DEAD-box RNA helicase Vasa functions in embryonic mitotic progression in the sea urchin
    Mamiko Yajima
    Department of Molecular Biology, Cellular Biology and Biochemistry, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 138:2217-22. 2011
    ..Our results suggest an evolutionarily conserved role of Vasa that is independent of its function in germ line determination...
  2. pmc Meiotic gene expression initiates during larval development in the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, Providence, RI 02912, USA
    Dev Dyn 242:155-63. 2013
    ..Although a series of conserved meiosis genes (e.g., dmc1, msh5, rad21, rad51, and sycp1) is expressed in sea urchin oocytes, we sought to determine when in development meiosis would first be initiated...
  3. pmc Autonomy in specification of primordial germ cells and their passive translocation in the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 139:3786-94. 2012
    ..These results suggest that sea urchin SMics share many more characteristics typical of PGCs than previously thought, and imply a more widely conserved system of germ line development among metazoans...
  4. pmc ISWI contributes to ArsI insulator function in development of the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 139:3613-22. 2012
    ..These studies reveal a mechanistic basis for ArsI function in the gene regulatory network of early development...
  5. pmc Small micromeres contribute to the germline in the sea urchin
    Mamiko Yajima
    MCB Department, Brown University, 185 Meeting Street, BOX GL173, Providence, RI 02912, USA
    Development 138:237-43. 2011
    ..These results suggest that germline specification depends on the small micromeres, either directly as lineage products, or indirectly by signaling mechanisms emanating from the small micromeres or their descendants...
  6. ncbi request reprint A switch in the cellular basis of skeletogenesis in late-stage sea urchin larvae
    Mamiko Yajima
    Tateyama Marine Laboratory, Marine and Coastal Research Center, Ochanomizu University, 11 Koyatsu, Tateyama, Chiba 294 0301, Japan
    Dev Biol 307:272-81. 2007
    ..Thus, it appears that SMCs participate in skeletogenesis in late development and that PMCs disappear in the adult sea urchin, suggesting that the skeletogenesis may pass from PMCs to SMCs during the late larval stage...
  7. pmc The 3'UTR of nanos2 directs enrichment in the germ cell lineage of the sea urchin
    Nathalie Oulhen
    Department of Molecular and Cell Biology and Biochemistry, Brown University, 185 Meeting Street, Providence, RI 02912, USA
    Dev Biol 377:275-83. 2013
    ..These results show that a combination of selective RNA retention and translational control mechanisms instills nanos accumulation uniquely in the sMic lineage...
  8. doi request reprint Implication of HpEts in gene regulatory networks responsible for specification of sea urchin skeletogenic primary mesenchyme cells
    Mamiko Yajima
    Department of Molecular and Cell Biology and Biochemistry, Brown University, Providence, RI 02912, USA
    Zoolog Sci 27:638-46. 2010
    ..Transactivation assays demonstrate that the HpEts protein activates a promoter of Spicule Matrix Protein 50 (SM50), which is a target of HpEts, which binds to the regulatory region of SM50...
  9. pmc Nanos functions to maintain the fate of the small micromere lineage in the sea urchin embryo
    Celina E Juliano
    Department of Molecular and Cell Biology and Biochemistry, Brown University, 185 Meeting St, Providence, RI 02912, USA
    Dev Biol 337:220-32. 2010
    ..This work, in combination with other recent results in Ilyanassa and Platynereis dumerilii, suggests the presence of a conserved molecular program underlying both primordial germ cell and multipotent cell specification and maintenance...
  10. pmc Post-translational regulation by gustavus contributes to selective Vasa protein accumulation in multipotent cells during embryogenesis
    Eric A Gustafson
    Providence Institute of Molecular Oogenesis, Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI 02912, USA
    Dev Biol 349:440-50. 2011
    ..We propose that Gustavus has a conserved, positive regulatory role in Vasa protein accumulation during embryonic development...
  11. ncbi request reprint Ars insulator protects transgenes from long-term silencing in sea urchin larva
    Mamiko Yajima
    Tateyama Marine Laboratory, Marine and Coastal Research Center, Ochanomizu University, 11 Koyatsu, Tateyama, Chiba, Japan
    Dev Genes Evol 217:331-6. 2007
    ..Furthermore, we demonstrate that DNA of the reporter gene introduced into the sea urchin eggs is methylated during development and that the ArsI protects the transgene from the DNA methylation...
  12. pmc The multiple hats of Vasa: its functions in the germline and in cell cycle progression
    Mamiko Yajima
    Department of Molecular Biology, Cellular Biology and Biochemistry, Brown University, Providence, Rhode Island, USA
    Mol Reprod Dev 78:861-7. 2011
    ....
  13. doi request reprint Nucleosome exclusion from the interspecies-conserved central AT-rich region of the Ars insulator
    Haruna Takagi
    Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Higashi Hiroshima 739 8526, Japan
    J Biochem 151:75-87. 2012
    ..These results suggest that the central AT-rich nucleosome-free region plays an important role in the function of the Ars insulator...
  14. ncbi request reprint Evolutionary modification of mesenchyme cells in sand dollars in the transition from indirect to direct development
    Mamiko Yajima
    Tateyama Marine Laboratory, Marine and Coastal Research Center, Ochanomizu University, 11 Koyatsu, Tateyama, Chiba 294 0301, Japan
    Evol Dev 9:257-66. 2007
    ..The occurrence of evolutionary modifications in mesenchyme cells in the transition from indirect to direct development of sand dollars is discussed...
  15. ncbi request reprint Study of larval and adult skeletogenic cells in developing sea urchin larvae
    Mamiko Yajima
    Tateyama Marine Laboratory, Marine and Coastal Research Center, Ochanomizu University, 11 Koyatsu, Tateyama, Chiba 294 0301, Japan
    Biol Bull 211:183-92. 2006
    ..In the later-stage embryos, cells with filopodia and faint antigen expression were observed migrating in the blastocoel or aggregating in the presumptive location of new skeletogenesis...