Kudome, N., Ito, A., Ota, A., Kobayashi, M., Ikeda, M., Hamajima, R. (2023) The DEAD/H-box helicase DHX9 contributes to suppression of Bombyx mori nucleopolyhedrovirus propagation in B. mori cells. Dev. Comp. Immunol. 147, 104897-104897.
Isobe, S., Ota, A., Takata, S., Hamajima, R., Makino, S., Kobayashi, M., and Ikeda, M. (2021) NISES-AnPe-428 cell line derived from the Chinese oak silkworm Antheraea pernyi is permissive for multiple nucleopolyhedrovirus species from insects of four different families. Cytotechnol. 73, 643-655.
Millado, JBH., Hamajima, R., Sugiura, W., Makino, S., Kobayashi, M., and Ikeda, M. (2021) Identification and characterization of Bombyx mori homologs of Bonus, Mdm2, Rad6, Sce, and Synoviolin. J. Insect Biotechnol. Sericol. 90, 21-32.
Hamajima, R., Ota, A., Makino, S., Millado, JBH., Kobayashi, M., and Ikeda, M. (2020) Identification of the minimal AcMNPV P143 protein region responsible for triggering apoptosis and rRNA degradation of Bombyx mori cells. Virus Res. 276, 197832.
Hamajima, R., Saito, A., Makino, S., Kobayashi, M., and Ikeda, M. (2018) Antiviral immune responses of Bombyx mori cells during abortive infection with Autographa californica multiple nucleopolyhedrovirus. Virus Res. 258, 28-38.
Makino, S., Hamajima, R., Saito, A., Tomizaki, M., Iwamoto, A., Kobayashi, M., Yamada, H., Ikeda, M. (2018) Bombyx mori homolog of tumor suppressor p53 is involved in apoptosis-mediated antiviral immunity of B. mori cells infected with nucleopolyhedrovirus. Dev. Comp. Immunol. 84, 133-141.
Chaeychomsri, S., Chaeychomsri, W., Ikeda, M. and Kobayashi, M. (2017) Susceptibility of a cloned cell line from Helicoverpa armigera to homologous nucleopolyhedrovirus. J. Adv. Agric. Technol. 4, 200-208.
Tachibana, A., Hamajima, R., Tomizaki, M., Kondo, T., Nanba, Y., Kobayashi,M., Hayato Yamada, H. & Ikeda, M. (2017) HCF-1 encoded by baculovirus AcMNPV is required for productive nucleopolyhedrovirus infection of non-permissive Tn368 cells. Sci. Rep. 7, 3807.
Hamajima, R., Kobayashi, M. and Ikeda, M. (2017) P143 proteins from heterologous nucleopolyhedroviruses induce apoptosis in BM-N cells derived from the silkworm Bombyx mori. Virus Res. 233, 70-76.
Chaeychomsri, S., Chaeychomsri, W., Ikeda, M. and Kobayashi, M. (2016) A new continuous cell line of Spodoptera exigua and its susceptibility to Autographa californica Multicapsid nucleopolyhedrovirus. J. Adv. Agric. Technol. 3, 231-238.
Hamajima, R., Iwamoto, A., Tomizaki, M., Suganuma, I., Kitaguchi, K., Kobayashi, M., Yamada, H., and Ikeda, M. (2016) Functional analysis of inhibitor of apoptosis 1 of the silkworm Bombyx mori. Insect Biochem. Mol. Biol. 79, 97-107.
Hamajima, R., Yasunaga-Aoki, C., Iwanaga, M., Imanishi, S., Kobayashi, J., Sasaki, K., Kusakabe, T., Lee J-M., Mon, H., Kobayashi, M. and Ikeda, M. (2016) rRNA degradation in Bombyx mori and Bombyx mandarina cells infected with heterologous nucleopolyhedroviruses. J. Insect Biotechnol. Sericol. 85, 73-77.
Chaeychomsri, S., Chaeychomsri, W., Ikeda, M. and Kobayashi, M. (2015) Characterization of the Helicoverpa armigera nucleopolyhedrovirus during serial passage in cell culture. J. Adv. Agric. Technol. 2, 63-70.
Hamajima, R., Kobayashi, M. and Ikeda, M. (2015) Identification of amino acid residues of AcMNPV P143 protein involved in rRNA degradation and restricted viral replication in BM-N cells from the silkworm Bombyx mori. Virology 485, 244-251.
Hamajima, R., Kobayashi, M. and Ikeda, M. (2014) p143-mediated rRNA degradation in AcMNPV-infected BM-N cells is not associated with viral DNA replication. J. Insect Biotechnol. Sericol. 83, 19-23.
Sugiura, N., Ikeda, M., Shioiri, T., Yoshimura, M., Kobayashi, M. and Watanabe, H. (2013) Chondroitinase from baculovirus Bombyx mori nucleopolyhedrovirus and chondroitin sulfate from silkworm Bombyx mori. Glycobiology, 23, 1520-1530.
Yamada, H., Kitaguchi, K., Hamajima, R., Kobayashi, M. and Ikeda, M. (2013) Novel apoptosis suppressor Apsup from the baculovirus Lymantria dispar multiple nucleopolyhedrovirus precludes apoptosis through preventing proteolytic processing and activation of initiator caspase Dronc. J. Virol. 87, 12925-12934.
Kitaguchi, K., Hamajima, R., Yamada, H., Kobayashi, M. and Ikeda, M. (2013) Transient expression assay reveals kinetic difference in the proteolytic processing between Dronc proteins from the gypsy moth Lymantria dispar and the silkworm Bombyx mori. J. Insect Biotechnol. Sericol. 82, 49-54.
Hamajima, R., Ito, Y., Ichikawa, H., Mitsutake, H., Kobyashi, J., Kobayashi, M. and Ikeda, M. (2013) Degradation of ribosomal RNA in BM-N cells from the silkworm Bombyx mori during abortive infection with heterologous nucleopolyhedroviruses. J. Gen. Virol. 94, 2102-2111.
Kitaguchi, K., Hamajima, R., Yamada, H., Kobayashi, M. and Ikeda, M. (2013) Cloning and functional characterization of the Lymantria dispar initiator caspase dronc. Biochem. Biophys. Res. Commun. 436, 331-337.
Yamada, H., Okamoto, K., Kobayashi, M. and Ikeda, M. (2012) Cloning and characterization of an effector caspase, Ld-caspase-1, from Lymantria dispar Ld652Y cells. J. Insect Biotechnol. Sericol. 81, 75-83.
Yamada, H., Shibuya, M., Kobayashi, M. and Ikeda, M. (2012) Baculovirus Lymantria dispar multiple nucleopolyhedrovirus IAP2 and IAP3 do not suppress apoptosis, but trigger apoptosis of insect cells in a transient expression assay. Virus Genes 45, 370-379.
Suganuma, I., Ushiyama, T., Yamada, H., Iwamoto, A., Kobayashi, M. and Ikeda, M. (2011) Cloning and characterization of a dronc homologue in the silkworm, Bombyx mori. Insect. Biochem. Mol. Biol. 41, 909-921. doi: 10.1016/j.ibmb.2011.08.005.
Ikeda, M., Yamada, H., Ito, H. and Kobayashi, M. (2011) Baculovirus IAP1 induces caspase-dependent apoptosis in insect cells. J. Gen. Virol. 92, 2654-2663.
Yamada, H., Shibuya, M., Kobayashi, M. and Ikeda, M. (2011) Identification of a novel apoptosis suppressor gene from the baculovirus Lymantria dispar multicapsid nucleopolyhedrovirus. J. Virol. 85, 5237–5242.
Nagai, S., FelipeAlves, C.A., Kobayashi, M. and Ikeda, M. (2011) Comparative transient expression assay analysis of hycu-hr6- and IE1-dependent regulation of baculovirus gp64 early promoters in three insect cell lines. Virus Res. 155, 83-90.
Katou, Y., Yamada, H., Ikeda, M., Kobayashi, M. (2010) A single amino acid substitution modulates low-pH-triggered membrane fusion of GP64 protein in Autographa californica and Bombyx mori nucleopolyhedroviruses. Virology 404, 204-214.
Shirata, N., Ikeda, M., Kobayashi, M. (2010) Identification of a Hyphantria cunea nucleopolyhedrovirus (NPV) gene that is involved in global protein synthesis shutdown and restricted Bombyx mori NPV multiplication in a B. mori cell line. Virology 398, 149-157.
Felipe Alves, C. A., Ishikawa, H., Ikeda, M., Kobayashi, M. (2009) hycu-hr6, A large homologous region of the Hyphantria cunea nucleopolyhedrovirus genome, as a powerful and versatile enhancer in insect expression systems. Virus Genes 39, 403-408.
Ogembo, J. G., Caoili, B. L., Shikata, M., Chaeychomsri, S., Kobayashi, M., Ikeda, M. (2009) Comparative genomic sequence analysis of novel Helicoverpa armigera nucleopolyhedrovirus (NPV) isolated from Kenya and three other previously sequenced Helicoverpa spp. NPVs. Virus Genes 39, 261-272.
Ogembo, J. G., Chaeychomsri, S., Caoili, B. L., Ikeda, M., Kobayashi, M. (2008) Susceptibility of the cell line Hv-AM1 from Heliothis virescens to eight selected nucleopolyhedroviruses. J. Insect Biotechnol. Sericol. 77, 141-150.
Ogembo, J. G., Chaeychomsri, S., Caoili, B. L., Ikeda, M., Kobayashi, M. (2008) Susceptibility of newly established cell lines from Helicoverpa armigera to homologous and heterologous nucleopolyhedroviruses. J. Insect Biotechnol. Sericol. 77, 25-34.
Ogembo, J. G., Chaeychomsri, S., Kamiya, K., Ishikawa, H., Katou, Y., Ikeda, M., Kobayashi, M. (2007) Cloning and comparative characterization of nucleopolyhedroviruses isolated from African bollworm, Helicoverpa armigera,(Lepidoptera: Noctudiae) in different geographic regions. J. Insect Biotechnol. Sericol. 76, 39-49.
Ikeda, M., Shikata, M., Shirata, N., Chaeychomsri, S., Kobayashi, M. (2006) Gene organization and complete sequence of the Hyphantria cunea nucleopolyhedrovirus genome. J. Gen. Virol. 87, 2549-2562.
Nagai, S., Alves, C. A. F., Shirata, N., Katou, Y., Ishikawa, H., Ikeda, M., Kobayashi, M. (2006) hycu-hr6, a large homologous region of Hyphantria cunea nucleopolyhedrovirus, is dispensable for virus replication in culture cells. J. Insect Biotechnol. Sericol. 75, 57-64.
Katou, Y., Ikeda, M., Kobayashi, M. (2006) Abortive replication of Bombyx mori nucleopolyhedrovirus in Sf9 and High Five cells: defective nuclear transport of the virions. Virology 347, 455-465.
Ishikawa, H., Ogasawara, T., Ikeda, M., Kobayashi, M. (2006) A recombinant Bombyx mori nucleopolyhedrovirus possessing hrf-1 gene replicates in nonpermissive Lymantria dispar IPLB-Ld652Y cell line. J. Insect Biotechnol. Sericol. 75, 31-38.
Ikeda, M., Reimbold, E. A., Thiem, S. M. (2005) Functional analysis of the baculovirus host range gene, hrf-1. Virology, 332, 602-613.
Sotoshiro, H., Ikeda, M., Tanaka, T., Kobayashi, M. (2005) Accumulation of non-viral 45.5 K and 44K polypeptides inversely correlates with that of viral structural polypeptides in the midgut of the silkworm, Bombyx mori, infected with B. mori densovirus type 2. J. Insect Biotechnol. Sericol. 74, 79.
Ishikawa, H., Ikeda, M., Alves, C. A. F., Thiem, S. M., Kobayashi, M. (2004) Host range factor 1 from Lymantria dispar nucleopolyhedrovirus (NPV) is an essential viral factor required for productive infection of NPVs in IPLB-Ld652Y cells derived from L. dispar. J. Virol. 78, 12703-12708.
Shirata, N., Ikeda, M., Kamiya, K., Kawamura, S., Kobayashi, M. (2004) Restriction of Bombyx mori nucleopolyhedrovirus (NPV) replication by Hyphantria cunea NPV in a cell line from B. mori. J. Insect Biotechnol. Sericol. 73, 23-33.
Ikeda, M., Yanagimoto, K., & Kobayashi, M. (2004) Identification and functional analysis of Hyphantria cunea nucleopolyhedrovirus iap genes. Virology, 321, 359-371.
Iwahori, S., Ikeda, M., Kobayashi, M. (2004) Association of Sf9 cell proliferating cell nuclear antigen with the DNA replication site of Autographa californica multicapsid nucleopolyhedrovirus. J. Gen. Virol. 85, 2857-2862.
Felipe Alves, C. A., Ikeda, M., Kobayashi, M. (2002) Identification and characterization of Hyphantria cunea nucleopolyhedrovirus homologous repeated regions. Virus Genes 25, 281-290.
Felipe Alves, C. A. F., Ikeda, M., Kobayashi, M. (2002) Characterization of Hyphantria cunea nucleopolyhedrovirus gp64 gene and analysis of elements regulating its early promoter activity. J. Insect Biotechnol. Sericol. 71, 141-150.
Iwahori, S., Ikeda, M., Kobayashi, M. (2002) Generation and characterization of Autographa californica nucleopolyhedrovirus mutants defective in pcna gene homologue. J. Insect Biotechnol. Sericol. 71, 129-139.
Laviña, B. A., Padua, L. E., Wu, F. Q., Shirata, N., Ikeda, M., Kobayashi, M. (2001) Biological characterization of a nucleopolyhedrovirus of Spodoptera litura (Lepidoptera: Noctuidae) isolated from the Philippines. Biological Control 20, 39-47.
Sotoshiro, H., Ikeda, M., Hirunagi, K., Tanaka, T., Kobayashi, M. (2001) Identification of nonviral infection-specific polypeptides in the midgut of the silkworm, Bombyx mori, infected with B. mori densovirus type 2. J. Insect Biotechnol. Sericol. 70, 39-48.
II. Reviews
Ikeda, M., Hamajima, R. and Kobayashi, M. (2015) Baculoviruses: diversity, evolution and manipulation of insects. Entomological Science 18, 1-20.
Ikeda, M., Yamada, H., Hamajima, R. and Kobayashi, M. (2013) Baculovirus genes modulating intracellular innate antiviral immunity of lepidopteran insect cells. Virology 435, 1-13.