A Sasaki

Summary

Affiliation: Kyushu University
Country: Japan

Publications

  1. pmc Host-parasite coevolution in a multilocus gene-for-gene system
    A Sasaki
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka 812 8581, Japan
    Proc Biol Sci 267:2183-8. 2000
  2. ncbi request reprint Spatial mosaic and interfacial dynamics in a Müllerian mimicry system
    Akira Sasaki
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka, 812 8581, Japan
    Theor Popul Biol 61:49-71. 2002
  3. pmc Clone mixtures and a pacemaker: new facets of Red-Queen theory and ecology
    A Sasaki
    Department of Biology, Kyushu University, Fukuoka, 812 81 Japan
    Proc Biol Sci 269:761-72. 2002
  4. ncbi request reprint Preoperative transcatheter arterial chemoembolization reduces long-term survival rate after hepatic resection for resectable hepatocellular carcinoma
    A Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita 879 5593, Japan
    Eur J Surg Oncol 32:773-9. 2006
  5. pmc Reduced tau expression in gastric cancer can identify candidates for successful Paclitaxel treatment
    K Mimori
    Department of Surgery, Kyushu University Hospital at Beppu, Japan
    Br J Cancer 94:1894-7. 2006
  6. doi request reprint Coexistence conditions for strains of influenza with immune cross-reaction
    Ryosuke Omori
    Department of Biology, Kyushu University, Fukuoka, Japan
    J Theor Biol 262:48-57. 2010
  7. pmc Why are dengue virus serotypes so distantly related? Enhancement and limiting serotype similarity between dengue virus strains
    Isao Kawaguchi
    Department of Biology, Faculty of Science, Kyushu University Graduate Schools, Fukuoka 812 8581, Japan
    Proc Biol Sci 270:2241-7. 2003
  8. ncbi request reprint Evolution of hierarchical cytoplasmic inheritance in the plasmodial slime mold Physarum polycephalum
    Akiko Iwanaga
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka 812 8581, Japan
    Evolution 58:710-22. 2004
  9. ncbi request reprint Optimal phosphorylation step number of intracellular signal-transduction pathway
    Jun Nakabayashi
    Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812 8581, Japan
    J Theor Biol 233:413-21. 2005
  10. ncbi request reprint Epidemiology and disease-control under gene-for-gene plant-pathogen interaction
    Akiko Ohtsuki
    Department of Biology, Faculty of Science, Kyushu University Graduate Schools, Fukuoka 812 8581, Japan
    J Theor Biol 238:780-94. 2006

Collaborators

Detail Information

Publications35

  1. pmc Host-parasite coevolution in a multilocus gene-for-gene system
    A Sasaki
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka 812 8581, Japan
    Proc Biol Sci 267:2183-8. 2000
    ..Implications for the red queen hypothesis of the evolution of sex and the control of multiple drug resistance are discussed...
  2. ncbi request reprint Spatial mosaic and interfacial dynamics in a Müllerian mimicry system
    Akira Sasaki
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka, 812 8581, Japan
    Theor Popul Biol 61:49-71. 2002
    ....
  3. pmc Clone mixtures and a pacemaker: new facets of Red-Queen theory and ecology
    A Sasaki
    Department of Biology, Kyushu University, Fukuoka, 812 81 Japan
    Proc Biol Sci 269:761-72. 2002
    ....
  4. ncbi request reprint Preoperative transcatheter arterial chemoembolization reduces long-term survival rate after hepatic resection for resectable hepatocellular carcinoma
    A Sasaki
    Department of Surgery I, Oita University Faculty of Medicine, 1 1 Hasama machi, Yufu, Oita 879 5593, Japan
    Eur J Surg Oncol 32:773-9. 2006
    ....
  5. pmc Reduced tau expression in gastric cancer can identify candidates for successful Paclitaxel treatment
    K Mimori
    Department of Surgery, Kyushu University Hospital at Beppu, Japan
    Br J Cancer 94:1894-7. 2006
    ..These data indicate that tau-negative expression can be used to select gastric cancer patients, which will favourably respond to Paclitaxel treatment...
  6. doi request reprint Coexistence conditions for strains of influenza with immune cross-reaction
    Ryosuke Omori
    Department of Biology, Kyushu University, Fukuoka, Japan
    J Theor Biol 262:48-57. 2010
    ..It follows that the majority of antigenic drift in influenza is expected to occur in the earlier part of each transmission season and this is likely to be a key surveillance period for detecting emerging antigenic novelty...
  7. pmc Why are dengue virus serotypes so distantly related? Enhancement and limiting serotype similarity between dengue virus strains
    Isao Kawaguchi
    Department of Biology, Faculty of Science, Kyushu University Graduate Schools, Fukuoka 812 8581, Japan
    Proc Biol Sci 270:2241-7. 2003
    ..Therefore, high mortality owing to enhancement leads to an evolutionarily stable viral community comprising a set of distantly separated serotypes...
  8. ncbi request reprint Evolution of hierarchical cytoplasmic inheritance in the plasmodial slime mold Physarum polycephalum
    Akiko Iwanaga
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka 812 8581, Japan
    Evolution 58:710-22. 2004
    ..Based on the theoretical results of the site-specific nuclease model, we propose that a nested subsequence structure in the recognition sequence should underlie the linear dominance hierarchy of mitochondrial transmission...
  9. ncbi request reprint Optimal phosphorylation step number of intracellular signal-transduction pathway
    Jun Nakabayashi
    Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812 8581, Japan
    J Theor Biol 233:413-21. 2005
    ..This suggests that multi-step phosphorylation would have evolved to accelerate the speed of transduction of weak signals...
  10. ncbi request reprint Epidemiology and disease-control under gene-for-gene plant-pathogen interaction
    Akiko Ohtsuki
    Department of Biology, Faculty of Science, Kyushu University Graduate Schools, Fukuoka 812 8581, Japan
    J Theor Biol 238:780-94. 2006
    ..In the two-locus GFG control, there again exists the optimal mixing ratio for the fraction of universally susceptible genotype and the total fraction of various resistant genotypes, with the ratio close to 1/R(0)...
  11. ncbi request reprint A mathematical model for apoptosome assembly: the optimal cytochrome c/Apaf-1 ratio
    Jun Nakabayashi
    Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812 8581, Japan
    J Theor Biol 242:280-7. 2006
    ..We also study the optimal number of subunits comprising an active oligomer that maximize the conversion efficiency in assembly process, and found that the tetramer is the optimum...
  12. ncbi request reprint Cross-immunity, invasion and coexistence of pathogen strains in epidemiological models with one-dimensional antigenic space
    Ben Adams
    Department of Biology, Kyushu University, Fukuoka, Japan
    Math Biosci 210:680-99. 2007
    ..Analysis of the evolutionary trajectory shows that attaining the maximum diversity requires large spontaneous changes in antigenic structure and cannot result from a sequence of small point mutations alone...
  13. pmc Combining zooprophylaxis and insecticide spraying: a malaria-control strategy limiting the development of insecticide resistance in vector mosquitoes
    Isao Kawaguchi
    Department of Biology, Faculty of Science, Kyushu University Graduate Schools, Fukukoka, Japan
    Proc Biol Sci 271:301-9. 2004
    ..Our model reveals that, by a suitable choice of insecticide spraying rate and cattle density and location, malaria can, in some situations, be controlled without mosquitoes developing insecticide resistance...
  14. pmc 'Small worlds' and the evolution of virulence: infection occurs locally and at a distance
    M Boots
    Department of Biology, Faculty of Science, Kyushu University, Fukuoka shi, Japan
    Proc Biol Sci 266:1933-8. 1999
    ....
  15. ncbi request reprint Variable timing of reproduction in unpredictable environments: adaption of flood plain plants
    A Satake
    Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan
    Theor Popul Biol 60:1-15. 2001
    ..In the presence of noise, the ESS distribution of programmed timing of reproduction is discrete...
  16. ncbi request reprint Mutation landscapes
    Akira Sasaki
    Department of Biology, Faculty of Science, Kyushu University Graduate Schools, Fukuoka, 812 8581, Japan
    J Theor Biol 224:241-7. 2003
    ..Instead, the target of selection is an optimum distribution of mutation rates, a 'mutational quasispecies'...
  17. doi request reprint Antigenic distance and cross-immunity, invasibility and coexistence of pathogen strains in an epidemiological model with discrete antigenic space
    Ben Adams
    Department of Biology, Kyushu University, Fukuoka 812 8581, Japan
    Theor Popul Biol 76:157-67. 2009
    ....
  18. ncbi request reprint Spred is a Sprouty-related suppressor of Ras signalling
    T Wakioka
    Division of Molecular and Cellular Immunology, Medical Institute of Bioregulation, Kyushu University, Maidashi, Higashi ku, Fukuoka 812 8582, Japan
    Nature 412:647-51. 2001
    ..Instead, Spred inhibited the activation of MAP kinase by suppressing phosphorylation and activation of Raf. Spred may represent a class of proteins that modulate Ras-Raf interaction and MAP kinase signalling...
  19. ncbi request reprint The role of trade-off shapes in the evolution of parasites in spatial host populations: an approximate analytical approach
    Masashi Kamo
    Advanced Industrial Science and Technology, Research Center for Chemical Risk Management, 305 8569, Onogawa 16 1, Tsukuba, Japan
    J Theor Biol 244:588-96. 2007
    ..We also emphasize the key role that the shape of trade-offs plays in evolutionary outcomes...
  20. ncbi request reprint The wave speed of intergradation zone in two-species lattice Müllerian mimicry model
    Isao Kawaguchi
    Regulatory Sciences Research Group, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263 8555, Japan
    J Theor Biol 243:594-603. 2006
    ..We also examine if the spatial heterogeneity in migration rate can stably maintain clines...
  21. ncbi request reprint Apparent competition and recovery from infection
    Dominik Wodarz
    Department of Ecology and Evolutionary Biology, Steinhaus Hall, University of California, Irvine, CA 92697, USA
    J Theor Biol 227:403-12. 2004
    ..The models presented are related to the concept of apparent competition, and our results are discussed in relation to both theoretical and empirical studies...
  22. ncbi request reprint Autosomal dominant precocious osteoarthropathy due to a mutation of the cartilage oligomeric matrix protein (COMP) gene: further expansion of the phenotypic variations of COMP defects
    Hiroyuki Kawaji
    Department of Orthopaedic Surgery, Sanyudo Hospital, 6 1 219 Chuou, Yonezawa, Yamagata 992 0045, Japan
    Skeletal Radiol 31:730-7. 2002
    ..Unlike previously reported cases with the Ribbing type, the present patients did not have short stature or brachydactyly. This report expands further the phenotypic variations of COMP defects...
  23. ncbi request reprint Emergence of cooperation and evolutionary stability in finite populations
    Martin A Nowak
    Program for Evolutionary Dynamics, Harvard University, Cambridge, Massachusetts 02138, USA
    Nature 428:646-50. 2004
    ..We specify the conditions required for natural selection to favour the emergence of cooperation and define evolutionary stability in finite populations...
  24. doi request reprint Neural stem cells improve learning and memory in rats with Alzheimer's disease
    Shuliang Wu
    Division of Bio Environmental Adaptation Sciences, Graduate School of Health Sciences, Hiroshima University, Hiroshima, Japan
    Pathobiology 75:186-94. 2008
    ..We investigated whether neural stem cells (NSC) with transgenic expression of human nerve growth factor (hNGF) transplanted into the brain could offer a therapeutic option for the treatment of Alzheimer's disease (AD)...
  25. ncbi request reprint Can transitive inference evolve in animals playing the hawk-dove game?
    Mayuko Nakamaru
    Department of Systems Engineering, Shizuoka University, Shizuoka Prefecture Joho ku, Hamamatsu 432 8561, Japan
    J Theor Biol 222:461-70. 2003
    ....
  26. ncbi request reprint Cisplatin-induced long-term dynorphin A-immunoreactivity in cell somata of rat area postrema neurons
    Goichi Tsukamoto
    Department of Oral and Maxillofacial Surgery, Biopathological Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Okayama 700 8525, Japan
    Neurosci Lett 424:122-6. 2007
    ..9% NaCl. These findings suggest that dynorphin A increases in the central nervous system for a long time following administration, and causes certain behavioral and clinical changes, including those related to appetite and nausea...
  27. pmc Evolution of DNA double-strand break repair by gene conversion: coevolution between a phage and a restriction-modification system
    Koji Yahara
    Laboratory of Social Genome Sciences, Department of Medical Genome Sciences, Graduate School of Frontier Science and Institute of Medical Science, University of Tokyo, Tokyo, Japan
    Genetics 176:513-26. 2007
    ..It was not until this effect was taken into account that the evolutionary advantage of DNA repair became apparent...
  28. ncbi request reprint Combination chemotherapy of paclitaxel and cisplatin induces apoptosis with Bcl-2 phosphorylation in a cisplatin-resistant human epidermoid carcinoma cell line
    Seiji Sawada
    Department of Oral and Maxillofacial Surgery, Biopathological Science, Graduate School of Medicine and Dentistry, Okayama University Graduate Schools, 2 5 1 Shikata cho, 700 8525, Okayama, Japan
    Cancer Chemother Pharmacol 51:505-11. 2003
    ..CDDP also shows poor results in human epidermoid carcinoma particularly of the head and neck region...
  29. ncbi request reprint [Simultaneous determination of pesticides in agricultural products by LC/MS/MS using clean-up with ultrafiltration]
    Eriko Hatakeyama
    Research Institute for Environmental Sciences and Public Health of Iwate Prefecture 1 36 1, Iiokasinden, Morioka 020 0852, Japan
    Shokuhin Eiseigaku Zasshi 47:137-45. 2006
    ..Pesticide residues in 50 domestic crops were investigated by this method, and residues of 14 pesticides were detected in 30 crops...
  30. pmc Noisy clues to the origin of life
    David C Krakauer
    Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA
    Proc Biol Sci 269:2423-8. 2002
    ..Hence, two factors formerly considered inimical to the origin of life-developmental noise and drift in small populations-can in combination give rise to conditions favourable to robust replication...
  31. ncbi request reprint Pathogenic role of connective tissue growth factor (CTGF/CCN2) in osteolytic metastasis of breast cancer
    Tsuyoshi Shimo
    Department of Oral and Maxillofacial Surgery and Biopathological Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
    J Bone Miner Res 21:1045-59. 2006
    ..Osteolytic metastasis accompanied by CCN2 and PTHrP overproduction was efficiently inhibited by an anti-CCN2 antibody. Furthermore, we found that CCN2 was induced by PTHrP through PKA-, PKC-, and ERK-mediated pathways therein...
  32. pmc The greater than twofold cost of integration for retroviruses
    David C Krakauer
    Santa Fe Institute, 1399 Hyde Park Road, NM 87501, USA
    Proc Biol Sci 273:1159-63. 2006
    ....
  33. ncbi request reprint Shaping the phylogenetic tree of influenza by cross-immunity
    Viggo Andreasen
    Department of Mathematics and Physics, Roskilde University, DK 4000 Roskilde, Denmark
    Theor Popul Biol 70:164-73. 2006
    ..However, if the original lineage arrives first then both strains may establish and the phylogenetic tree may bifurcate...
  34. ncbi request reprint Modeling host-parasite coevolution: a nested approach based on mechanistic models
    Michael A Gilchrist
    Department of Biology, Duke University, Durham, NC, 27708 0325, USA
    J Theor Biol 218:289-308. 2002
    ..In this particular system we find that the coevolutionary equilibrium is always stable and that host survivorship and parasite fitness vary greatly with the cost of the immune response and parasite growth...
  35. ncbi request reprint Evolutionary game dynamics in finite populations
    Christine Taylor
    Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
    Bull Math Biol 66:1621-44. 2004
    ..For finite populations, there are eight selection scenarios. For a fixed payoff matrix a number of these scenarios can occur for different population sizes. We discuss several examples with unexpected behavior...