Masayuki Shimada

Last Updated :2021/01/05

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Professor
E-mail
mashimadhiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Doctor of Philosophy, Yamaguchi University
  • Master of Agriculture, Hiroshima University

Research Fields

  • Agricultural sciences;Animal life science;Animal production science

Research Keywords

  • oocyte|ovulation
  • fertilization/IVF
  • in vitro maturation
  • ovary
  • assisted reproductive technology
  • spermatogenesis
  • testis
  • semen storage

Educational Activity

Course in Charge

  1. 2020, Liberal Arts Education Program1, 3Term, Cell Science
  2. 2020, Liberal Arts Education Program1, First Semester, Food culture
  3. 2020, Undergraduate Education, Intensive, Laboratory Work in General Biology II
  4. 2020, Undergraduate Education, 2Term, Reading of Foreign Literature
  5. 2020, Undergraduate Education, 1Term, Introduction to Physiology
  6. 2020, Undergraduate Education, Intensive, Animal Reproduction
  7. 2020, Undergraduate Education, Intensive, Laboratory Work in Animal Reproduction
  8. 2020, Undergraduate Education, Academic Year, Graduation Thesis
  9. 2020, Undergraduate Education, 2Term, Developmental Engineering
  10. 2020, Undergraduate Education, 3Term, Laboratory Animal Science
  11. 2020, Undergraduate Education, Intensive, Independent study of International issues and challenge
  12. 2020, Undergraduate Education, 4Term, Molecular Cell Biology
  13. 2020, Undergraduate Education, 4Term, Bio-Analytical Science
  14. 2020, Undergraduate Education, 3Term, Reading of Foreign Literature in Molecular Agro-Life Science
  15. 2020, Undergraduate Education, Intensive, Overseas Exercise of Applied Biological Science I
  16. 2020, Undergraduate Education, Intensive, Overseas Exercise of Applied Biological Science II
  17. 2020, Undergraduate Education, Intensive, Overseas Exercise of Applied Biological Science III
  18. 2020, Graduate Education (Master's Program) , 2Term, Molecular Endocrinology
  19. 2020, Graduate Education (Master's Program) , 4Term, Reproductive biology
  20. 2020, Graduate Education (Master's Program) , Second Semester, Research for Academic Degree Dissertation
  21. 2020, Graduate Education (Doctoral Program) , First Semester, Exercises in Animal Science(B)
  22. 2020, Graduate Education (Doctoral Program) , Second Semester, Exercises in Animal Science(B)
  23. 2020, Graduate Education (Master's Program) , 4Term, societal implementation of life science
  24. 2020, Graduate Education (Master's Program) , 1Term, Exercises in Food andAgriLife Science A
  25. 2020, Graduate Education (Master's Program) , 2Term, Exercises in Food andAgriLife Science A
  26. 2020, Graduate Education (Master's Program) , 3Term, Exercises in Food andAgriLife Science B
  27. 2020, Graduate Education (Master's Program) , 4Term, Exercises in Food andAgriLife Science B
  28. 2020, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Food andAgriLife Science
  29. 2020, Graduate Education (Master's Program) , 2Term, Animal Life Science I
  30. 2020, Graduate Education (Master's Program) , 4Term, Animal Life Science II
  31. 2020, Graduate Education (Master's Program) , 1Term, Exercises in Bioresource Science A
  32. 2020, Graduate Education (Master's Program) , 2Term, Exercises in Bioresource Science A
  33. 2020, Graduate Education (Master's Program) , 3Term, Exercises in Bioresource ScienceB
  34. 2020, Graduate Education (Master's Program) , 4Term, Exercises in Bioresource ScienceB
  35. 2020, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Bioresource Science
  36. 2020, Graduate Education (Doctoral Program) , Second Semester, Interdisciplinary Seminar B
  37. 2020, Graduate Education (Master's Program) , 4Term, Introduction to Genetics and Genomics

Research Activities

Academic Papers

  1. Progression of nuclear maturation and p34cdc2 kinase activity in porcine oocytes during in vitro culture in different medium, J Mamm Ova Res, 18(1), 39-43, 20010401
  2. Survival of Boar Spermatozoa Frozen in Diluents of Varying Osmolality., Theriogenology, 56(8), 447-458, 20010401
  3. ★, Inhibition of PI 3-kinase or MEK Leads to Suppression of p34cdc2 kinase Activity and Meiotic Progression beyond the MI stage in Porcine Oocyte Surrounded with Cumulus Cells., Biology of Reproduction, 65(2), 442-448, 20010401
  4. Survival of boar spermatozoa frozen in diluents of varying osmolality, THERIOGENOLOGY, 56(3), 447-458, 20010801
    Link to Paper Search Results by DOI
  5. Wortmannin, a specific phosphatidylinositol 3-kinase inhibitor, blocks in vitro fertilization and embryonic development of bovine oocytes matured in vitro with epidermal growth factor., J Mamm Ova Res, 17(3), 109-114, 20000401
  6. Sperm enter glands of preovulatory bovine endometrial explants and initiate inflammation, REPRODUCTION, 159(2), 181-192, 202002
    Link to Paper Search Results by DOI
  7. Roadmap to pregnancy in the first 7 days post-insemination in the cow: Immune crosstalk in the corpus luteum, oviduct, and uterus, THERIOGENOLOGY, 150, 313-320, 20200701
    Link to Paper Search Results by DOI
  8. Mitochondrial Protein Turnover Is Critical for Granulosa Cell Proliferation and Differentiation in Antral Follicles, JOURNAL OF THE ENDOCRINE SOCIETY, 3(2), 324-339, 201902
    Link to Paper Search Results by DOI
  9. Gene Expression and Protein Synthesis in Mitochondria Enhance the Duration of High-Speed Linear Motility in Boar Sperm, FRONTIERS IN PHYSIOLOGY, 10, 20190312
    Link to Paper Search Results by DOI
  10. TLR2/4 signaling pathway mediates sperm-induced inflammation in bovine endometrial epithelial cells in vitro, PLOS ONE, 14(4), 20190417
    Link to Paper Search Results by DOI
  11. Cyclooxygenase-2 is acutely induced by CCAAT/enhancer-binding protein beta to produce prostaglandin E-2 and F-2 alpha following gonadotropin stimulation in Leydig cells, MOLECULAR REPRODUCTION AND DEVELOPMENT, 86(7), 786-797, 201907
    Link to Paper Search Results by DOI
  12. Activation of Toll-like receptor 7/8 encoded by the X chromosome alters sperm motility and provides a novel simple technology for sexing sperm, PLOS BIOLOGY, 17(8), 201908
    Link to Paper Search Results by DOI
  13. Negative effects of ROS generated during linear sperm motility on gene expression and ATP generation in boar sperm mitochondria, FREE RADICAL BIOLOGY AND MEDICINE, 141, 159-171, 201909
    Link to Paper Search Results by DOI
  14. Induction of immune-related gene expression by seminal exosomes in the porcine endometrium, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 495(1), 1094-1101, 20180101
    Link to Paper Search Results by DOI
  15. Inductions of granulosa cell luteinization and cumulus expansion are dependent on the fibronectin-integrin pathway during ovulation process in mice, PLOS ONE, 13(2), 20180208
    Link to Paper Search Results by DOI
  16. Transgenic mice specifically expressing amphiregulin in white adipose tissue showed less adipose tissue mass, GENES TO CELLS, 23(3), 136-145, 201803
    Link to Paper Search Results by DOI
  17. A proinflammatory response of bovine endometrial epithelial cells to active sperm in vitro, MOLECULAR REPRODUCTION AND DEVELOPMENT, 85(3), 215-226, 201803
    Link to Paper Search Results by DOI
  18. Oviduct epithelium induces interferon-tau in bovine Day-4 embryos, which generates an anti-inflammatory response in immune cells, SCIENTIFIC REPORTS, 8, 20180518
    Link to Paper Search Results by DOI
  19. Evidence that interferon-tau secreted from Day-7 embryo in vivo generates anti-inflammatory immune response in the bovine uterus, BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 500(4), 879-884, 20180612
    Link to Paper Search Results by DOI
  20. The Cell Type-Specific Expression of Lhcgr in Mouse Ovarian Cells: Evidence for a DNA-Demethylation-Dependent Mechanism, ENDOCRINOLOGY, 159(5), 2062-2074, 201805
    Link to Paper Search Results by DOI
  21. Creatine enhances the duration of sperm capacitation: a novel factor for improving in vitro fertilization with small numbers of sperm, HUMAN REPRODUCTION, 33(6), 1117-1129, 201806
    Link to Paper Search Results by DOI
  22. Bovine embryo induces an anti-inflammatory response in uterine epithelial cells and immune cells in vitro: possible involvement of interferon tau as an intermediator, JOURNAL OF REPRODUCTION AND DEVELOPMENT, 63(4), 425-434, 2017
  23. The acceleration of reproductive aging in Nrg1(flox/flox);Cyp19-Cre female mice, AGING CELL, 16(6), 1288-1299, 201712
    Link to Paper Search Results by DOI
  24. De Novo-Synthesized Retinoic Acid in Ovarian Antral Follicles Enhances FSH-Mediated Ovarian Follicular Cell Differentiation and Female Fertility, ENDOCRINOLOGY, 157(5), 2160-2172, 2016
    Link to Paper Search Results by DOI
  25. The Novel Pig In Vitro Maturation System to Improve Developmental Competence of Oocytes Derived from Atretic Nonvascularized Follicles, BIOLOGY OF REPRODUCTION, 95(4), 20161001
    Link to Paper Search Results by DOI
  26. Neuregulin 1 Regulates Proliferation of Leydig Cells to Support Spermatogenesis and Sexual Behavior in Adult Mice, ENDOCRINOLOGY, 157(12), 4899-4913, 2016
    Link to Paper Search Results by DOI
  27. Protein Kinase C (PKC) Increases TACE/ADAM17 Enzyme Activity in Porcine Ovarian Somatic Cells, Which Is Essential for Granulosa Cell Luteinization and Oocyte Maturation, ENDOCRINOLOGY, 155(3), 1080-1090, 2014
    Link to Paper Search Results by DOI
  28. The lncRNA Neat1 is required for corpus luteum formation and the establishment of pregnancy in a subpopulation of mice, DEVELOPMENT, 141(23), 4618-4627, 2014
    Link to Paper Search Results by DOI
  29. Targeted Disruption of Nrg1 in Granulosa Cells Alters the Temporal Progression of Oocyte Maturation, MOLECULAR ENDOCRINOLOGY, 28(5), 706-721, 2014
  30. Anti-Bacterial Factors Secreted From Cumulus Cells of Ovulated COCs Enhance Sperm Capacitation During In Vitro Fertilization, AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY, 69(2), 168-179, 2013
    Link to Paper Search Results by DOI
  31. Androgen/androgen receptor pathway regulates expression of the genes for cyclooxygenase-2 and amphiregulin in periovulatory granulosa cells, MOLECULAR AND CELLULAR ENDOCRINOLOGY, 369(42737), 42-51, 20130430
    Link to Paper Search Results by DOI
  32. New strategies of boar sperm cryopreservation: Development of novel freezing and thawing methods with a focus on the roles of seminal plasma, ANIMAL SCIENCE JOURNAL, 83(9), 623-629, 2012
    Link to Paper Search Results by DOI
  33. Artificial Insemination With Seminal Plasma Improves the Reproductive Performance of Frozen-Thawed Boar Epididymal Spermatozoa, JOURNAL OF ANDROLOGY, 33(5), 990-998, 2012
    Link to Paper Search Results by DOI
  34. Adiponectin and its receptors modulate granulosa cell and cumulus cell functions, fertility, and early embryo development in the mouse and human, FERTILITY AND STERILITY, 98(2), 471-+, 2012
    Link to Paper Search Results by DOI
  35. The Release of EGF Domain from EGF-like Factors by a Specific Cleavage Enzyme Activates the EGFR-MAPK3/1 Pathway in Both Granulosa Cells and Cumulus Cells During the Ovulation Process, JOURNAL OF REPRODUCTION AND DEVELOPMENT, 58(5), 510-514, 2012
  36. Endogenous acetaldehyde toxicity during antral follicular development in the mouse ovary, REPRODUCTIVE TOXICOLOGY, 33(3), 322-330, 2012
  37. EGF-Like Factors Induce Expansion of the Cumulus Cell-Oocyte Complexes by Activating Calpain-Mediated Cell Movement, ENDOCRINOLOGY, 153(8), 3949-3959, 2012
  38. The addition of calcium ion chelator, EGTA to thawing solution improves fertilizing ability in frozen-thawed boar sperm, ANIMAL SCIENCE JOURNAL, 82(3), 412-419, 2011
    Link to Paper Search Results by DOI
  39. Toll-like receptors (TLR) 2 and 4 on human sperm recognize bacterial endotoxins and mediate apoptosis, HUMAN REPRODUCTION, 26(10), 2799-2806, 2011
    Link to Paper Search Results by DOI
  40. Positive Feedback Loop Between Prostaglandin E2 and EGF-Like Factors Is Essential for Sustainable Activation of MAPK3/1 in Cumulus Cells During In Vitro Maturation of Porcine Cumulus Oocyte Complexes, BIOLOGY OF REPRODUCTION, 85(5), 1073-1082, 2011
    Link to Paper Search Results by DOI
  41. Cumulus Cell-Oocyte Complex Expansion Is Regulated by Ca2+ Induced m-Calpain Activity Leading to Cumulus Cell Motility and Migration, BIOLOGY OF REPRODUCTION, 85, 2011
  42. LH-Induced Neuregulin 1 (NRG1) Type III Transcripts Control Granulosa Cell Differentiation and Oocyte Maturation, MOLECULAR ENDOCRINOLOGY, 25(1), 104-116, 2011
  43. Positive Feedback Loop Between Prostaglandin E2 and EGF-Like Factors Is Essential for Sustainable Activation of MAPK3/1 in Cumulus Cells During In Vitro Maturation of Porcine Cumulus Oocyte Complexes, BIOLOGY OF REPRODUCTION, 85(5), 1073-1082, 2011
  44. The Expression of Acetaldehyde Dehydrogenase (ALDH) Type I Family Members Is Required to Decrease of Endogenous Acetaldehyde Toxicity During Ovarian Follicular Development in Mouse and Human, BIOLOGY OF REPRODUCTION, 85, 2011
  45. Possible involvement of phosphatidylinositol 3-kinase in the maintenance of metaphase II attest in porcine oocytes matured in vitro, ANIMAL SCIENCE JOURNAL, 81(1), 42-47, 2010
    Link to Paper Search Results by DOI
  46. beta-Catenin (CTNNB1) Promotes Preovulatory Follicular Development but Represses LH-Mediated Ovulation and Luteinization, MOLECULAR ENDOCRINOLOGY, 24(8), 1529-1542, 2010
    Link to Paper Search Results by DOI
  47. Polymyxin B neutralizes bacteria-released endotoxin and improves the quality of boar sperm during liquid storage and cryopreservation, THERIOGENOLOGY, 74(9), 1691-1700, 2010
    Link to Paper Search Results by DOI
  48. Progesterone is Essential for Maintenance of Tace/Adam17 mRNA Expression, But not EGF-like Factor, in Cumulus Cells, Which Enhances the EGF Receptor Signaling Pathway During In Vitro Maturation of Porcine COCs, JOURNAL OF REPRODUCTION AND DEVELOPMENT, 56(3), 315-323, 2010
  49. Polymyxin B neutralizes bacteria-released endotoxin and improves the quality of boar sperm during liquid storage and cryopreservation, THERIOGENOLOGY, 74(9), 1691-1700, 2010
  50. Activation of PKA, p38 MAPK and ERK1/2 by gonadotropins in cumulus cells is critical for induction of EGF-like factor and TACE/ADAM17 gene expression during in vitro maturation of porcine COCs, JOURNAL OF OVARIAN RESEARCH, 2(1), 2009
    Link to Paper Search Results by DOI
  51. MAPK3/1 (ERK1/2) in Ovarian Granulosa Cells Are Essential for Female Fertility, SCIENCE, 324(5929), 938-941, 20090515
    Link to Paper Search Results by DOI
  52. Interleukin-6: An Autocrine Regulator of the Mouse Cumulus Cell-Oocyte Complex Expansion Process, ENDOCRINOLOGY, 150(7), 3360-3368, 2009
    Link to Paper Search Results by DOI
  53. Neuregulin 1 Is a Novel Oocyte Maturation Regulatory Factor Expressed in Granulosa Cells During the Ovulation Process in Mice., BIOLOGY OF REPRODUCTION, 59-59, 2009
  54. ERK1/2 in Ovarian Granulosa Cells Are Essential for Female Fertility., BIOLOGY OF REPRODUCTION, 82-82, 2009
  55. MAPK3/1 (ERK1/2) in Ovarian Granulosa Cells Are Essential for Female Fertility, SCIENCE, 324(5929), 938-941, 2009
  56. Interleukin-6: An Autocrine Regulator of the Mouse Cumulus Cell-Oocyte Complex Expansion Process, ENDOCRINOLOGY, 150(7), 3360-3368, 2009
  57. Selective expression of Kras(G12D) in granulosa cells of the mouse ovary causes defects in follicle development and ovulation, DEVELOPMENT, 135(12), 2127-2137, 20080615
    Link to Paper Search Results by DOI
  58. Hyaluronan fragments generated by sperm-secreted hyaluronidase stimulate cytokine/chemokine production via the TLR2 and TLR4 pathway in cumulus cells of ovulated COCs, which may enhance fertilization, DEVELOPMENT, 135(11), 2001-2011, 20080601
    Link to Paper Search Results by DOI
  59. Sequential exposure of porcine cumulus cells to FSH and/or LH is critical for appropriate expression of steroidogenic and ovulation-related genes that impact oocyte maturation in vivo and in vitro, REPRODUCTION, 136(1), 9-21, 2008
    Link to Paper Search Results by DOI
  60. Immune-like mechanisms in ovulation, TRENDS IN ENDOCRINOLOGY AND METABOLISM, 19(6), 191-196, 2008
    Link to Paper Search Results by DOI
  61. Sequential exposure of porcine cumulus cells to FSH and LH is critical for appropriate expression of steroidogenic and ovulation-related genes that impact oocyte maturation in vivo and in vitro, BIOLOGY OF REPRODUCTION, 150-150, 2008
  62. PGE2 and progesterone enhance EGFR activation in porcine cumulus cells via the induction of TACE/ADAM17 expression but not EGF like factors expression during oocyte maturation in vivo and in vitro, BIOLOGY OF REPRODUCTION, 150-150, 2008
  63. Hyaluronan fragments generated by sperm-secreted hyaluronidase stimulate cytokine/chemokine production via the TLR2 and TLR4 pathway in cumulus cells of ovulated COCs, which may enhance fertilization, DEVELOPMENT, 135(11), 2001-2011, 2008
  64. The involvement of the Toll-like receptor family in ovulation, JOURNAL OF ASSISTED REPRODUCTION AND GENETICS, 25(6), 223-228, 2008
  65. Sequential exposure of porcine cumulus cells to FSH and/or LH is critical for appropriate expression of steroidogenic and ovulation-related genes that impact oocyte maturation in vivo and in vitro, REPRODUCTION, 136(1), 9-21, 2008
  66. Selective expression of constitutively active KrasG12D in granulosa cells of the mouse ovary causes defects in follicle development and ovulation, BIOLOGY OF REPRODUCTION, 127-127, 2008
  67. Assessment of human oocyte quality by cumulus cell morphology and circulating hormone profile, Reproductive BioMedicine Online, 14(1), 20070101
  68. Synaptosomal associated protein 25 (Snap25) gene expression is hormonally regulated during ovulation and is involved in cytokine/chemokine exocytosis from granulosa cells., Molecular Endocrinology, 21(10), 2487-2502, 20071001
  69. Involvment of Ca2+-dependent proteasome in the degradation of both cyclin B1 and Mos during spontaneous activation of matured rat oocytes., Theriogenology, 67(3), 475-485, 20070301
  70. Hormone-induced expression of tumor necrosis factor alpha-converting enzyme/a disintegrin and metalloprotease-17 impacts porcine cumulus cell oocyte complex expansion and meiotic maturation via ligand activation of the epidermal growth factor receptor, ENDOCRINOLOGY, 148(12), 6164-6175, 2007
  71. Gene expression profiles of cumulus cell oocyte complexes during ovulation reveal that cumulus cells exhibit a diverse array of neuronal and immune-like functional activities: Are these cells multi-potential?, Molecular Endocrinology, 20(6), in press, 20060601
  72. Paracrine and autocrine regulation of EGF-like factors in cumulus oocyte complexes (COCs) and granulosa cells: key roles for prostanglandin synthase 2 (Ptgs2) and progesterone receptor (Pgr), Molecular Endocrinology, 20(6), in press, 20060601
  73. Induced expression of pattern recognition receptors (PRRs) in cumulus oocyte complexes (COCs): Novel evidence for immune-like functions during ovulation., Molecular Endocrinology, 20(6), 3228-3239, 20060601
  74. Gonadotropin-induced delta 14-reductase and delta 7-reductase gene expression in cumulus cells during meiotic resumption of porcine oocytes, Endocrinology, 146, 186-194, 20050101
  75. The timing of MAP kinase inactivation effects on emission of polar body in porcine oocytes activated by Ca2+ ionophore, Molecular Reproduction and Development, 70, 64-69, 20050201
  76. Enzyme immunoassay of progesterone in the feces from beef cattle to monitor the ovarian cycle., Animal Reproduction Science, 87, 1-10, 20050601
  77. Contribution of high p34cdc2 kinase activity to premature chromosome condensation of injected somatic cell nuclei in rat oocytes., Reproduction, 129, 172-180, 20050401
  78. Transcripts encoding the enzymes that convert acetyl-CoA to cholesterol are induced in cumulus cells and are essential for progesterone biosynthesis and meiotic resumption of porcine oocytes., Japanese Journal of Reproductive Endocrinology, 10, 15-20, 20051101
  79. TAF4b, a TBP Associated Factor is Required for Multiple Aspects of Oocyte Development., Developmental Biology, 208(6), 405-409, 20050615
  80. Mice null for Frizzled4 (Fzd4-/-) are infertile and exhibit impaired corpus lutea formation and function: a critical for vascularization., Biology of Reproduction, 73(7), 1135-1146, 20050729
  81. Mitogen-Activated Protein Kinase Kinase Inhibitor Suppresses Cyclin B1 Synthesis and Reactivation of p34cdc2 Kinase, Which Improves Pronuclear Formation Rate in Matured Porcine Oocytes Activated by Ca2+ Ionophore, Biology of Reproduction, 70, 797-804, 20040301
  82. Dramatic changese in motility and penetration competence of miniture pig spermatozoa frozen after exposure to seminal plasma, Theriogenology, 61(42769), 351-364, 20040101
  83. Expression of two progesterone receptor isoforms in cumulus cells and their roles during meiotic resumption of porcine oocytes, Journal of Molecular Endocrinology, in press, 20040401
  84. The role of Calcium/Calmodulin-dependent protein kinase II (CaMKII) on inactivation of MAP kinase and p34cdc2 kinase during fertilization and activation in pig oocytes, Reproduction, 128, 409-415, 20040401
  85. Down-regulated expression of ADAMTS-1 by progesterone receptor antagonist is associated with impaired expansion of porcine cumulus-oocyte complexes, Endocrinology, 145, 4603-4614, 20040401
  86. Effects of adding LH to FSH-containing medium on progesterone-induced differentiation of cumulus cells during meiotic resumption of porcine oocytes, Animal Science Journal, in press, 20040401
  87. FSH-induced activation of PI 3-kinase-PKB pathway is essential for LH receptor formation in cumulus cells during meiotic resumption of porcine oocytes., Japanese Journal of Reproductive Endocrinology, in press, 20040401
  88. Effects of adding luteinizing hormone to a medium containing follicle stimulating hormone on progesterone-induced differentiation of cumulus cells during meiotic resumption of porcine oocytes, Animal Science Journal, 75, 515-523, 20040401
  89. Motility and penetration competence of frozen-thawed miniature pig spermatozoa are substantially altered by exposure to seminal plasma before freezing, THERIOGENOLOGY, 61(42769), 351-364, 20040115
    Link to Paper Search Results by DOI
  90. The production of progesterone from de novo-synthesized cholesterol in cumulus cells, and its physiological role during meiotic resumption of porcine oocytes, Biology of Reproduction, 68(4), 1193-1198, 20030401
  91. Effects of estrone sulfate injection on reproductive functions in male Japanese quail., Journal of Poultry Science, 40, 243-247, 20031001
  92. PI 3-kinase in cumulus cells is responsible for both suppression of spontaneous maturation and induction of gonadotropin-stimulated maturation of porcine oocytes., Journal of Endocrinology, 179, 25-34, 20031001
  93. Effect of Protein kinase C activator on mitogen-activated protein kinase and p34cdc2 kinase activity during parthenogenetic activation of porcine oocytes by calcium ionophore., Biology of Reproduction, 69, 1675-1682, 20031101
  94. LH receptor formation in cumulus cells surrounding porcine oocytes, and its role during meiotic maturation of porcine oocytes., Biology of Reproduction, 68(4), 1142-1149, 20030401
  95. Time dependent changes in progesterone receptor expression in cumulus cells during meiotic resumption of porcine oocytes, Journal of Mammalian Ova Research, 20, 113-117, 20031001
  96. Time dependent changes in progesterone receptor expression in cumulus cells during meiotic resumption of porcine oocytes, Journal of Mammalian Ova Research, 20, 113-117, 20030401
  97. LH reduces proliferative activity of cumulus cells and accelerates GVBD of porcine oocytes, Molecular and Cellular Endocrinology, 209, 43-50, 20030401
  98. Roles of cAMP in Regulation of both MAP kinase and p34cdc2 kinase activity during Meiotic Progression,especially beyond the MI stage., Molecular Reproduction and Development, 62(1), 124-131, 20020501
  99. ★, FSH and LH induce progesterone production and progesterone receptor synthesis in cumulus cells: a requirement for meiotic resumption in porcine oocytes., Molecular Human Reproduction, 8, 621-628, 20020701
  100. Delay of nuclear maturation and reduction in developmental competence of pig oocytes after mineral oil overlay of in vitro maturation media., Reproduction, 124, 557-564, 20021001
  101. Both Ca2+-PKC pathway and cAMP-PKA pathway require for progesterone production in FSH- and LH-stimulated cumulus cells during in vitro maturation of porcine oocytes., J Mamm Ova Res, 19(3), 81-88, 20021001
  102. Dynamic changes of connexin-43, gap junctional protein, in outer layers of cumulus cells are regulated by PKC and PI 3-kinase during meiotic resumption in porcine oocytes, Biology of Reproduction, 64(4), 1255-1263, 20010401
  103. PI 3-kinase in cumulus cells and oocytes is responsible for activation of oocyte MAP kinase during meiotic progression beyond the MI stage in pigs, Biology of Reproduction, 64(4), 1106-1114, 20010401
  104. The drop of cAMP level due to the closure of gap junctional communication between cumulus cells and oocyte is essential for meiotic progression beyond the MI stage in porcine oocytes, J Mamm Ova Res, 18(3), 99-105, 20010401
  105. Meiotic Maturation of Bovine Oocytes Cultured In vitro with EGF and Wortmannin., J Mamm Ova Res, 17(3), 103-108, 20000401
  106. Activation by stimuli of sperm penetration in bovine oocytes treated with high concentration of BAPTA/AM., J Mamm Ova Res, 17(3), 96-102, 20000401
  107. Effects of wortmannin on the kinetics of GVBD and the activities of the maturation-promoting factor and mitogen-activated protein kinase during bovine oocyte maturation in vitro, Theriogenology, 53(5), 1797-1806, 20000401
  108. Phosphorylation of Connexin-43, Gap Junctional Protein, in Cumulus Cells Are Regulated by Mitogen Activated Protein Kinase and Phosphatidylinositol 3-Kinase during In Vitro Meiotic Resumption in Porcine Follicular Oocytes., J Mamm Ova Res, 16(3), 37-42, 19990401
  109. A Role for PI 3-Kinase in bovine oocytes nuclear maturation., Theriogenology, 50(7), 347-356, 19980401
  110. ★, Effects of Phosphatidylinositol 3-Kinase Inhibitors, Wortmannin and LY294002 on Germinal Vesicle Breakdown (GVBD) in Porcine Oocytes., J Reprod Dev, 44(5), 281-288, 19980401
  111. Activation of PKA, p38 MAPK and ERK1/2 by gonadotropins in cumulus cells is critical for induction of EGF-like factor and TACE/ADAM17 gene expression during in vitro maturation of porcine COCs, JOURNAL OF OVARIAN RESEARCH, 2(1), 2009
  112. Fecal progestagen and estrone during pregnancy in a giraffe: A case report, JOURNAL OF REPRODUCTION AND DEVELOPMENT, 53(1), 159-164, 2007
  113. Phosphorylation of Connexin-43, Gap Junctional Protein, in Cumulus Cells is Regulated by Mitogen-Activated Protein Kinase and Phosphatidylinositol 3-Kinase during In Vitro Meiotic Resumption in Porcine Follicular Oocytes, Journal of mammalian ova research, 16(1), 37-42, 19990401
  114. The relationship between the reduction of estrogen level in follicular fluid and ovulation process in ERK1^<-/-> ; ERK2^ ; Cyp19A1Cre mice, 26(2), 20090401
  115. Synergistic action of Mos/MEK/MAPK pathway and p34^ kinase on maintenance of meiotic arrest in rat oocytes, 22(2), 20050401
  116. PI 3-kinase in cumulus cells is associated with p34^ kinase activity in progressing beyond MI in porcine oocytes, 16(2), 19990401
  117. Progression of Nuclear Maturation and p34^ Kinase Activity in Porcine Oocytes during In Vitro Culture in Different Media, Journal of mammalian ova research, 18(1), 39-43, 20010401

Invited Lecture, Oral Presentation, Poster Presentation

  1. The dramatic changes cumulus cell functions during ovulation process impact meiotic progression and fertilization ability of oocyte., Masayuki Shimada, 14th International symposium of Immunology of Reproduction, 2015, With Invitation, English, Verna, Bulgaria,
  2. The aging ovary: restriction of follicle growth by abnormal endocrine functions and ovarian stromal matrix fibrosis, Masayuki Shimada, 15th International Symposium of Immunology of Reproduction, 2018/06/14, With Invitation, English
  3. The Aging Ovary: Abnormal Endocrine Functions Is there a role for Androgens, AR and Theca Cell Dysfunction?, JoAnne S. Richards, Masayuki Shimada, Cellular and Molecular Aging of the Reproductive System, 2018/09/10, With Invitation, English

Patented

  1. Patent, JP4783883, 2011/07/22
  2. Patent, JP5422848, 2013/12/06
  3. Patent, KR:10-1457143, 2014/10/27
  4. ZL201080026618.5, 2015/01/07
  5. 2765855, 2015/02/03
  6. 5733829, 2015/04/24
  7. 5904369, 2016/03/25
  8. Patent, 5920787, 2016//4//2

External Funds

Acceptance Results of Competitive Funds

  1. Science and technology research promotion program for agriculture forestry fisheries and food industry, 2015/04/09, 2016/03/22
  2. 2007
  3. 2010
  4. KAKENHI, 2013, 2014
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  5. KAKENHI, 2012, 2014
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  6. KAKENHI, 2009, 2010
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  7. KAKENHI, Next generation of IVMFC technical development by identification of the microtubule control factor of oocyte., 2009, 2011
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  8. KAKENHI, The study for development of novel in vitro oocyte maturation technique generated from expression profile of micro-RNA during ovulation process, 2009, 2011
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  9. KAKENHI, The study for development of novel mammalian oocyte culture system generated from microarray data base of ovulating process, 2006, 2008
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  10. KAKENHI, 2004, 2005
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  11. KAKENHI, Environmental pollution by sex steroids and assessment for their effects on animals and plants, 2003, 2004
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  12. KAKENHI, Contribution assessment of hatchery origin black sea bream Acanthopagrus schlegeli into natural populations using microsatellite markers, 2002, 2005
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  13. KAKENHI, 2002, 2003
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  14. KAKENHI, 2001, 2002
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  15. KAKENHI, Physiological and biochemical studies on freezability boar spermatozoa, 2000, 2002
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  16. Science and technology research promotion program for agriculture, forestry, fisheries and food industry, 2014/07/02, 2015/03/23
  17. KAKENHI, 2016, 2018
  18. Project for Baby and Infant in Research of healTH and Development to Adolescent and Young adult - BIRTHDAY, 2016/04/01, 2017/03/31
  19. Science and technology research promotion program for agriculture, forestry, fisheries and food industry, 2016/04/01, 2017/03/31
  20. KAKENHI(Grant-in-Aid for Challenging Research (Exploratory)), 2017, 2018
  21. Project for Baby and Infant in Research of healTH and Development to Adolescent and Young adult - BIRTHDAY, 2017/04/01, 2018/03/31
  22. Project for Baby and Infant in Research of healTH and Development to Adolescent and Young adult - BIRTHDAY , 2018/04/01, 2019/03/31
  23. KAKENHI(Grant-in-Aid for Scientific Research (B)), 2019, 2021