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Your search keyword '"Toguchida, Junya"' showing total 7 results
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7 results on '"Toguchida, Junya"'

1. Biallelic human SHARPIN loss of function induces autoinflammation and immunodeficiency

Author

Oda, Hirotsugu, Manthiram, Kalpana, Chavan, Pallavi Pimpale, Rieser, Eva, Veli, Önay, Kaya, Öykü, Rauch, Charles, Nakabo, Shuichiro, Kuehn, Hye Sun, Swart, Mariël, Wang, Yanli, Çelik, Nisa Ilgim, Molitor, Anne, Ziaee, Vahid, Movahedi, Nasim, Shahrooei, Mohammad, Parvaneh, Nima, Alipour-olyei, Nasrin, Carapito, Raphael, Xu, Qin, Preite, Silvia, Beck, David B., Chae, Jae Jin, Nehrebecky, Michele, Ombrello, Amanda K., Hoffmann, Patrycja, Romeo, Tina, Deuitch, Natalie T., Matthíasardóttir, Brynja, Mullikin, James, Komarow, Hirsh, Stoddard, Jennifer, Niemela, Julie, Dobbs, Kerry, Sweeney, Colin L., Anderton, Holly, Lawlor, Kate E., Yoshitomi, Hiroyuki, Yang, Dan, Boehm, Manfred, Davis, Jeremy, Mudd, Pamela, Randazzo, Davide, Tsai, Wanxia Li, Gadina, Massimo, Kaplan, Mariana J., Toguchida, Junya, Mayer, Christian T., Rosenzweig, Sergio D., Notarangelo, Luigi D., Iwai, Kazuhiro, Silke, John, Schwartzberg, Pamela L., Boisson, Bertrand, Casanova, Jean-Laurent, Bahram, Seiamak, Rao, Anand Prahalad, Peltzer, Nieves, Walczak, Henning, Lalaoui, Najoua, Aksentijevich, Ivona, and Kastner, Daniel L.

Published
2024
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2. Distinct muscle regenerative capacity of human induced pluripotent stem cell-derived mesenchymal stromal cells in Ullrich congenital muscular dystrophy model mice.

Author

Yokomizo-Goto, Megumi, Takenaka-Ninagawa, Nana, Zhao, Chengzhu, Bourgeois Yoshioka, Clémence Kiho, Miki, Mayuho, Motoike, Souta, Inada, Yoshiko, Zujur, Denise, Theoputra, William, Jin, Yonghui, Toguchida, Junya, Ikeya, Makoto, and Sakurai, Hidetoshi

Subjects
MUSCULAR dystrophy, STROMAL cells, TREATMENT effectiveness, EXTRACELLULAR matrix, MUSCLE cells, MUSCLE regeneration
Abstract

Background: Ullrich congenital muscular dystrophy (UCMD) is caused by a deficiency in type 6 collagen (COL6) due to mutations in COL6A1, COL6A2, or COL6A3. COL6 deficiency alters the extracellular matrix structure and biomechanical properties, leading to mitochondrial defects and impaired muscle regeneration. Therefore, mesenchymal stromal cells (MSCs) that secrete COL6 have attracted attention as potential therapeutic targets. Various tissue-derived MSCs exert therapeutic effects in various diseases. However, no reports have compared the effects of MSCs of different origins on UCMD pathology. Methods: To evaluate which MSC population has the highest therapeutic efficacy for UCMD, in vivo (transplantation of MSCs to Col6a1-KO/NSG mice) and in vitro experiments (muscle stem cell [MuSCs] co-culture with MSCs) were conducted using adipose tissue-derived MSCs, bone marrow-derived MSCs, and xeno-free-induced iPSC-derived MSCs (XF-iMSCs). Results: In transplantation experiments on Col6a1-KO/NSG mice, the group transplanted with XF-iMSCs showed significantly enhanced muscle fiber regeneration compared to the other groups 1 week after transplantation. At 12 weeks after transplantation, only the XF-iMSCs transplantation group showed a significantly larger muscle fiber diameter than the other groups without inducing fibrosis, which was observed in the other transplantation groups. Similarly, in co-culture experiments, XF-iMSCs were found to more effectively promote the fusion and differentiation of MuSCs derived from Col6a1-KO/NSG mice than the other primary MSCs investigated in this study. Additionally, in vitro knockdown and supplementation experiments suggested that the IGF2 secreted by XF-iMSCs promoted MuSC differentiation. Conclusion: XF-iMSCs are promising candidates for promoting muscle regeneration while avoiding fibrosis, offering a safer and more effective therapeutic approach for UCMD than other potential therapies. [ABSTRACT FROM AUTHOR]

Published
2024
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3. A de novo dominant-negative variant is associated with OTULIN-related autoinflammatory syndrome

Author

Takeda, Yukiko, primary, Ueki, Masahiro, additional, Matsuhiro, Junpei, additional, Walinda, Erik, additional, Tanaka, Takayuki, additional, Yamada, Masafumi, additional, Fujita, Hiroaki, additional, Takezaki, Shunichiro, additional, Kobayashi, Ichiro, additional, Tamaki, Sakura, additional, Nagata, Sanae, additional, Miyake, Noriko, additional, Matsumoto, Naomichi, additional, Osawa, Mitsujiro, additional, Yasumi, Takahiro, additional, Heike, Toshio, additional, Ohtake, Fumiaki, additional, Saito, Megumu K., additional, Toguchida, Junya, additional, Takita, Junko, additional, Ariga, Tadashi, additional, and Iwai, Kazuhiro, additional

Published
2024
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5. Heterozygous mutations in the straitjacket region of the latency-associated peptide domain of TGFB2 cause Camurati–Engelmann disease type II

Author

Wang, Zheng, Kometani, Mitsuhiro, Zeitlin, Leonid, Wilnai, Yael, Kinoshita, Akira, Yoshiura, Koh-ichiro, Ninomiya, Hiroko, Imamura, Takeshi, Guo, Long, Xue, Jingyi, Yan, Li, Ohashi, Hirofumi, Pretemer, Yann, Kawai, Shunsuke, Shiina, Masaaki, Ogata, Kazuhiro, Cohn, Daniel H., Matsumoto, Naomichi, Nishimura, Gen, Toguchida, Junya, Miyake, Noriko, and Ikegawa, Shiro

Abstract

Camurati–Engelmann disease (CED) is an autosomal dominant bone dysplasia characterized by progressive hyperostosis of the skull base and diaphyses of the long bones. CED is further divided into two subtypes, CED1 and CED2, according to the presence or absence of TGFB1mutations, respectively. In this study, we used exome sequencing to investigate the genetic cause of CED2 in three pedigrees and identified two de novo heterozygous mutations in TGFB2among the three patients. Both mutations were located in the region of the gene encoding the straitjacket subdomain of the latency-associated peptide (LAP) of pro-TGF-β2. Structural simulations of the mutant LAPs suggested that the mutations could cause significant conformational changes and lead to a reduction in TGF-β2 inactivation. An activity assay confirmed a significant increase in TGF-β2/SMAD signaling. In vitro osteogenic differentiation experiment using iPS cells from one of the CED2 patients showed significantly enhanced ossification, suggesting that the pathogenic mechanism of CED2 is increased activation of TGF-β2 by loss-of-function of the LAP. These results, in combination with the difference in hyperostosis patterns between CED1 and CED2, suggest distinct functions between TGFB1and TGFB2in human skeletal development and homeostasis.

Published
2024
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7. Biallelic human SHARPINloss of function induces autoinflammation and immunodeficiency

Author

Oda, Hirotsugu, Manthiram, Kalpana, Chavan, Pallavi Pimpale, Rieser, Eva, Veli, Önay, Kaya, Öykü, Rauch, Charles, Nakabo, Shuichiro, Kuehn, Hye Sun, Swart, Mariël, Wang, Yanli, Çelik, Nisa Ilgim, Molitor, Anne, Ziaee, Vahid, Movahedi, Nasim, Shahrooei, Mohammad, Parvaneh, Nima, Alipour-olyei, Nasrin, Carapito, Raphael, Xu, Qin, Preite, Silvia, Beck, David B., Chae, Jae Jin, Nehrebecky, Michele, Ombrello, Amanda K., Hoffmann, Patrycja, Romeo, Tina, Deuitch, Natalie T., Matthíasardóttir, Brynja, Mullikin, James, Komarow, Hirsh, Stoddard, Jennifer, Niemela, Julie, Dobbs, Kerry, Sweeney, Colin L., Anderton, Holly, Lawlor, Kate E., Yoshitomi, Hiroyuki, Yang, Dan, Boehm, Manfred, Davis, Jeremy, Mudd, Pamela, Randazzo, Davide, Tsai, Wanxia Li, Gadina, Massimo, Kaplan, Mariana J., Toguchida, Junya, Mayer, Christian T., Rosenzweig, Sergio D., Notarangelo, Luigi D., Iwai, Kazuhiro, Silke, John, Schwartzberg, Pamela L., Boisson, Bertrand, Casanova, Jean-Laurent, Bahram, Seiamak, Rao, Anand Prahalad, Peltzer, Nieves, Walczak, Henning, Lalaoui, Najoua, Aksentijevich, Ivona, and Kastner, Daniel L.

Abstract

The linear ubiquitin assembly complex (LUBAC) consists of HOIP, HOIL-1 and SHARPIN and is essential for proper immune responses. Individuals with HOIP and HOIL-1 deficiencies present with severe immunodeficiency, autoinflammation and glycogen storage disease. In mice, the loss of Sharpinleads to severe dermatitis due to excessive keratinocyte cell death. Here, we report two individuals with SHARPIN deficiency who manifest autoinflammatory symptoms but unexpectedly no dermatological problems. Fibroblasts and B cells from these individuals showed attenuated canonical NF-κB responses and a propensity for cell death mediated by TNF superfamily members. Both SHARPIN-deficient and HOIP-deficient individuals showed a substantial reduction of secondary lymphoid germinal center B cell development. Treatment of one SHARPIN-deficient individual with anti-TNF therapies led to complete clinical and transcriptomic resolution of autoinflammation. These findings underscore the critical function of the LUBAC as a gatekeeper for cell death-mediated immune dysregulation in humans.

Published
2024
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