1
|
Bradford STJ, Wu H, Kirita Y, Chen C, Malvin NP, Yoshimura Y, Muto Y, Humphreys BD. Tnik depletion induces inflammation and apoptosis ininjured renal proximal tubule epithelial cells. Am J Physiol Renal Physiol 2024. [PMID: 38482555 DOI: 10.1152/ajprenal.00262.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 03/05/2024] [Indexed: 04/12/2024] Open
Abstract
In the aftermath of acute kidney injury (AKI), surviving proximal tubule epithelia repopulate injured tubules to promote repair. However, a portion of cells fail to repair (termed Failed Repair Proximal Tubule Cells, FR-PTCs) and exert ongoing proinflammatory and profibrotic effects. To better understand the molecular drivers of the FR-PTC state, we reanalyzed a mouse ischemia-reperfusion injury single nucleus RNA-sequencing (snRNA-seq) atlas to identify Traf2 and Nck Interacting Kinase, Tnik, to be exclusively expressed in FR-PTCs, but not in healthy or acutely injured proximal tubules post AKI (2 and 6 weeks) in mice. We confirmed expression of Tnik protein in injured mouse and human tissues by immunofluorescence. Then, to determine the functional role of Tnik in FR-PTCs, we depleted Tnik using siRNA in two human renal proximal tubule epithelial cell lines (primary and immortalized hRPTECs) and analyzed each by bulk RNA-sequencing. Pathway analysis revealed significant upregulation of inflammatory signaling pathways, while pathways associated with differentiated proximal tubule such as organic acid transport were significantly downregulated. TNIK knockdown drove reduced cell viability and increased apoptosis, including differentially expressed PARP family members, cleaved PARP-1 fragments and increased Annexin V binding to phosphatidylserine. Together, these results indicate that Tnik upregulation in FR-PTCs acts in a compensatory fashion to suppress inflammation and promote proximal tubule epithelial cell survival following injury. Modulating Tnik activity may represent a pro-repair therapeutic strategy after AKI.
Collapse
Affiliation(s)
- Shayna T J Bradford
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Haojia Wu
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Yuhei Kirita
- Department of Nephrology, Kyoto Prefectural University of Medicine, Kyoto, Kyoto, Japan
| | - Changfeng Chen
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Nicole P Malvin
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Yasuhiro Yoshimura
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Yoshiharu Muto
- Department of Medicine, Washington University in St. Louis, St. Louis, MO, United States
| | - Benjamin D Humphreys
- Renal Division, Washington University in St. Louis, St. Louis, MO, United States
| |
Collapse
|
2
|
Ozawa T, Ikeda Y, Chen L, Suzuki R, Hoshino A, Noguchi A, Kita S, Anraku Y, Igarashi E, Saga Y, Inasaki N, Taminishi S, Sasaki J, Kirita Y, Fukuhara H, Maenaka K, Hashiguchi T, Fukuhara T, Hirabayashi K, Tani H, Kishi H, Niimi H. Rational in silico design identifies two mutations that restore UT28K SARS-CoV-2 monoclonal antibody activity against Omicron BA.1. Structure 2024; 32:263-272.e7. [PMID: 38228146 DOI: 10.1016/j.str.2023.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/27/2023] [Accepted: 12/20/2023] [Indexed: 01/18/2024]
Abstract
SARS-CoV-2 rapidly mutates and acquires resistance to neutralizing antibodies. We report an in-silico-designed antibody that restores the neutralizing activity of a neutralizing antibody. Our previously generated antibody, UT28K, exhibited broad neutralizing activity against mutant variants; however, its efficacy against Omicron BA.1 was compromised by the mutation. Using previously determined structural information, we designed a modified-UT28K (VH T28R/N57D), UT28K-RD targeting the mutation site. In vitro and in vivo experiments demonstrated the efficacy of UT28K-RD in neutralizing Omicron BA.1. Although the experimentally determined structure partially differed from the predicted model, our study serves as a successful case of antibody design, wherein the predicted amino acid substitution enhanced the recognition of the previously elusive Omicron BA.1. We anticipate that numerous similar cases will be reported, showcasing the potential of this approach for improving protein-protein interactions. Our findings will contribute to the development of novel therapeutic strategies for highly mutable viruses, such as SARS-CoV-2.
Collapse
Affiliation(s)
- Tatsuhiko Ozawa
- Department of Immunology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan; Center for Advanced Antibody Drug Development, University of Toyama, Toyama, Japan.
| | - Yoshiki Ikeda
- Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshidahonnmachi, Sakyo-ku, Kyoto, Japan.
| | - Liuan Chen
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Rigel Suzuki
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Japan; Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akira Noguchi
- Department of Diagnostic Pathology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Shunsuke Kita
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yuki Anraku
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Emiko Igarashi
- Department of Virology, Toyama Institute of Health, Toyama, Japan
| | - Yumiko Saga
- Department of Virology, Toyama Institute of Health, Toyama, Japan
| | - Noriko Inasaki
- Department of Virology, Toyama Institute of Health, Toyama, Japan
| | - Shunta Taminishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Jiei Sasaki
- Laboratory of Medical Virology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hideo Fukuhara
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan; Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan; Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan; Division of Pathogen Structure, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Katsumi Maenaka
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan; Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan; Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan; Division of Pathogen Structure, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan; Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo, Japan
| | - Takao Hashiguchi
- Laboratory of Medical Virology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Takasuke Fukuhara
- Department of Microbiology and Immunology, Faculty of Medicine, Hokkaido University, Sapporo, Japan; Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan; Laboratory of Virus Control, Research Institute for Microbial Diseases, Osaka University, Suita, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - Kenichi Hirabayashi
- Department of Diagnostic Pathology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - Hideki Tani
- Department of Virology, Toyama Institute of Health, Toyama, Japan
| | - Hiroyuki Kishi
- Department of Immunology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan; Center for Advanced Antibody Drug Development, University of Toyama, Toyama, Japan
| | - Hideki Niimi
- Center for Advanced Antibody Drug Development, University of Toyama, Toyama, Japan; Department of Clinical Laboratory and Molecular Pathology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| |
Collapse
|
3
|
Tomita-Yagi A, Ozeki-Okuno N, Watanabe-Uehara N, Komaki K, Umehara M, Sawada-Yamauchi H, Minamida A, Sunahara Y, Matoba Y, Nakamura I, Nakata T, Nakai K, Ida T, Yamashita N, Kamezaki M, Kirita Y, Taniguchi T, Konishi E, Matoba S, Tamagaki K, Kusaba T. The importance of proinflammatory failed-repair tubular epithelia as a predictor of diabetic kidney disease progression. iScience 2024; 27:109020. [PMID: 38357667 PMCID: PMC10865398 DOI: 10.1016/j.isci.2024.109020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/17/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
The immense public health burden of diabetic kidney disease (DKD) has led to an increase in research on the pathophysiology of advanced DKD. The present study focused on the significance of proinflammatory vascular cell adhesion molecule 1 (VCAM1)+ tubules in DKD progression. A retrospective cohort study of DKD patients showed that the percentage of VCAM1+ tubules in kidney samples was correlated with poor renal outcomes. We established an advanced DKD model by partial resection of the kidneys of db/db mice and demonstrated that it closely resembled the human advanced DKD phenotype, with tissue hypoxia, tubular DNA damage, tissue inflammation, and high tubular VCAM1 expression. Luseogliflozin ameliorated tissue hypoxia and proinflammatory responses, including VCAM1+ expression, in tubules. These findings suggest the potential of tubular VCAM1 as a histological marker for poor DKD outcomes. SGLT2 inhibitors may attenuate tissue hypoxia and subsequent tissue inflammation in advanced DKD, thereby ameliorating tubular injury.
Collapse
Affiliation(s)
- Aya Tomita-Yagi
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Natsuko Ozeki-Okuno
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriko Watanabe-Uehara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazumi Komaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Minato Umehara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroko Sawada-Yamauchi
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Minamida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuto Sunahara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yayoi Matoba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Itaru Nakamura
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiro Nakata
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kunihiro Nakai
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoharu Ida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriyuki Yamashita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michitsugu Kamezaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takuya Taniguchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Eiichi Konishi
- Department of Surgical Pathology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| |
Collapse
|
4
|
Muto Y, Dixon EE, Yoshimura Y, Ledru N, Kirita Y, Wu H, Humphreys BD. Epigenetic reprogramming driving successful and failed repair in acute kidney injury. bioRxiv 2024:2024.01.20.576421. [PMID: 38328130 PMCID: PMC10849487 DOI: 10.1101/2024.01.20.576421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Acute kidney injury (AKI) causes epithelial damage followed by subsequent repair. While successful repair restores kidney function, this process is often incomplete and can lead to chronic kidney disease (CKD) in a process called failed repair. To better understand the epigenetic reprogramming driving this AKI-to-CKD transition we generated a single nucleus multiomic atlas for the full mouse AKI time course, consisting of ~280,000 single nucleus transcriptomes and epigenomes. We reveal cell-specific dynamic alterations in gene regulatory landscapes reflecting especially activation of proinflammatory pathways. We further generated single nucleus multiomic data from four human AKI samples including validation by genome-wide identification of NF-kB binding sites. A regularized regression analysis identifies key regulators involved in both successful and failed repair cell fate, identifying the transcription factor CREB5 as a regulator of both successful and failed tubular repair that also drives proximal tubule cell proliferation after injury. Our interspecies multiomic approach provides a foundation to comprehensively understand cell states in AKI.
Collapse
Affiliation(s)
- Yoshiharu Muto
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Eryn E. Dixon
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Yasuhiro Yoshimura
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Nicolas Ledru
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Yuhei Kirita
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Haojia Wu
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Benjamin D. Humphreys
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, MO, USA
| |
Collapse
|
5
|
Hino T, Omura SN, Nakagawa R, Togashi T, Takeda SN, Hiramoto T, Tasaka S, Hirano H, Tokuyama T, Uosaki H, Ishiguro S, Kagieva M, Yamano H, Ozaki Y, Motooka D, Mori H, Kirita Y, Kise Y, Itoh Y, Matoba S, Aburatani H, Yachie N, Karvelis T, Siksnys V, Ohmori T, Hoshino A, Nureki O. An AsCas12f-based compact genome-editing tool derived by deep mutational scanning and structural analysis. Cell 2023; 186:4920-4935.e23. [PMID: 37776859 DOI: 10.1016/j.cell.2023.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/27/2023] [Accepted: 08/23/2023] [Indexed: 10/02/2023]
Abstract
SpCas9 and AsCas12a are widely utilized as genome-editing tools in human cells. However, their relatively large size poses a limitation for delivery by cargo-size-limited adeno-associated virus (AAV) vectors. The type V-F Cas12f from Acidibacillus sulfuroxidans is exceptionally compact (422 amino acids) and has been harnessed as a compact genome-editing tool. Here, we developed an approach, combining deep mutational scanning and structure-informed design, to successfully generate two AsCas12f activity-enhanced (enAsCas12f) variants. Remarkably, the enAsCas12f variants exhibited genome-editing activities in human cells comparable with those of SpCas9 and AsCas12a. The cryoelectron microscopy (cryo-EM) structures revealed that the mutations stabilize the dimer formation and reinforce interactions with nucleic acids to enhance their DNA cleavage activities. Moreover, enAsCas12f packaged with partner genes in an all-in-one AAV vector exhibited efficient knock-in/knock-out activities and transcriptional activation in mice. Taken together, enAsCas12f variants could offer a minimal genome-editing platform for in vivo gene therapy.
Collapse
Affiliation(s)
- Tomohiro Hino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Satoshi N Omura
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Ryoya Nakagawa
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Tomoki Togashi
- Department of Biochemistry, Jichi Medical University School of Medicine, Tochigi 329-0498, Japan; Department of Clinical Laboratory Science, Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, Ishikawa 920-0942, Japan
| | - Satoru N Takeda
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Takafumi Hiramoto
- Department of Biochemistry, Jichi Medical University School of Medicine, Tochigi 329-0498, Japan
| | - Satoshi Tasaka
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Hisato Hirano
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Takeshi Tokuyama
- Division of Regenerative Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Hideki Uosaki
- Division of Regenerative Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Soh Ishiguro
- School of Biomedical Engineering, Faculty of Applied Science and Faculty of Medicine, The University of British Columbia, Vancouver, BC V6S 0L4, Canada
| | - Madina Kagieva
- School of Biomedical Engineering, Faculty of Applied Science and Faculty of Medicine, The University of British Columbia, Vancouver, BC V6S 0L4, Canada
| | - Hiroyuki Yamano
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Yuki Ozaki
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Daisuke Motooka
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Hideto Mori
- Institute for Advanced Biosciences, Keio University, Yamagata 997-0035, Japan; Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa 252-0882, Japan; Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yoshiaki Kise
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan; Curreio, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuzuru Itoh
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Hiroyuki Aburatani
- Genome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Nozomu Yachie
- School of Biomedical Engineering, Faculty of Applied Science and Faculty of Medicine, The University of British Columbia, Vancouver, BC V6S 0L4, Canada; Premium Research Institute for Human Metaverse Medicine (WPI-PRIMe), Osaka University, Suita, Osaka, 565-0871, Japan; Synthetic Biology Division, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
| | - Tautvydas Karvelis
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Virginijus Siksnys
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Tsukasa Ohmori
- Department of Biochemistry, Jichi Medical University School of Medicine, Tochigi 329-0498, Japan; Center for Gene Therapy Research, Jichi Medical University, Tochigi 329-0498, Japan.
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Osamu Nureki
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan.
| |
Collapse
|
6
|
Moriyama S, Anraku Y, Taminishi S, Adachi Y, Kuroda D, Kita S, Higuchi Y, Kirita Y, Kotaki R, Tonouchi K, Yumoto K, Suzuki T, Someya T, Fukuhara H, Kuroda Y, Yamamoto T, Onodera T, Fukushi S, Maeda K, Nakamura-Uchiyama F, Hashiguchi T, Hoshino A, Maenaka K, Takahashi Y. Structural delineation and computational design of SARS-CoV-2-neutralizing antibodies against Omicron subvariants. Nat Commun 2023; 14:4198. [PMID: 37452031 PMCID: PMC10349087 DOI: 10.1038/s41467-023-39890-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 07/03/2023] [Indexed: 07/18/2023] Open
Abstract
SARS-CoV-2 Omicron subvariants have evolved to evade receptor-binding site (RBS) antibodies that exist in diverse individuals as public antibody clones. We rationally selected RBS antibodies resilient to mutations in emerging Omicron subvariants. Y489 was identified as a site of virus vulnerability and a common footprint of broadly neutralizing antibodies against the subvariants. Multiple Y489-binding antibodies were encoded by public clonotypes and additionally recognized F486, potentially accounting for the emergence of Omicron subvariants harboring the F486V mutation. However, a subclass of antibodies broadly neutralized BA.4/BA.5 variants via hydrophobic binding sites of rare clonotypes along with high mutation-resilience under escape mutation screening. A computationally designed antibody based on one of the Y489-binding antibodies, NIV-10/FD03, was able to bind XBB with any 486 mutation and neutralized XBB.1.5. The structural basis for the mutation-resilience of this Y489-binding antibody group may provide important insights into the design of therapeutics resistant to viral escape.
Collapse
Affiliation(s)
- Saya Moriyama
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan.
| | - Yuki Anraku
- Laboratory of Biomolecular Science, and Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University; Sapporo, Hokkaido, 060-0812, Japan
| | - Shunta Taminishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine; Kyoto, Kyoto, 602-8566, Japan
| | - Yu Adachi
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Daisuke Kuroda
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shunsuke Kita
- Laboratory of Biomolecular Science, and Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University; Sapporo, Hokkaido, 060-0812, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine; Kyoto, Kyoto, 602-8566, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine; Kyoto, Kyoto, 602-8566, Japan
| | - Ryutaro Kotaki
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Keisuke Tonouchi
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
- Department of Life Science and Medical Bioscience, Waseda University; Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Kohei Yumoto
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Tateki Suzuki
- Laboratory of Medical Virology, Institute for Life and Medical Sciences, Kyoto University; Kyoto, Kyoto, 606-8507, Japan
| | - Taiyou Someya
- Laboratory of Biomolecular Science, and Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University; Sapporo, Hokkaido, 060-0812, Japan
| | - Hideo Fukuhara
- Division of Pathogen Structure, International Institute for Zoonosis Control, Hokkaido University, Sapporo, 001-0020, Japan
| | - Yudai Kuroda
- Department of Veterinary Science, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Tsukasa Yamamoto
- Department of Veterinary Science, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Taishi Onodera
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shuetsu Fukushi
- Department of Virology I, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Ken Maeda
- Department of Veterinary Science, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Fukumi Nakamura-Uchiyama
- Department of Infectious Diseases, Tokyo Metropolitan Bokutoh Hospital; Sumida-ku, Tokyo, 130-8575, Japan
| | - Takao Hashiguchi
- Laboratory of Medical Virology, Institute for Life and Medical Sciences, Kyoto University; Kyoto, Kyoto, 606-8507, Japan
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine; Kyoto, Kyoto, 602-8566, Japan
| | - Katsumi Maenaka
- Laboratory of Biomolecular Science, and Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University; Sapporo, Hokkaido, 060-0812, Japan
- Division of Pathogen Structure, International Institute for Zoonosis Control, Hokkaido University, Sapporo, 001-0020, Japan
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University; Sapporo, Hokkaido, 060-0812, Japan
- Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University; Sapporo, Hokkaido, 060-0812, Japan
| | - Yoshimasa Takahashi
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases; Shinjuku-ku, Tokyo, 162-8640, Japan.
| |
Collapse
|
7
|
Minami Y, Hoshino A, Higuchi Y, Hamaguchi M, Kaneko Y, Kirita Y, Taminishi S, Nishiji T, Taruno A, Fukui M, Arany Z, Matoba S. Liver lipophagy ameliorates nonalcoholic steatohepatitis through extracellular lipid secretion. Nat Commun 2023; 14:4084. [PMID: 37443159 PMCID: PMC10344867 DOI: 10.1038/s41467-023-39404-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 06/12/2023] [Indexed: 07/15/2023] Open
Abstract
Nonalcoholic steatohepatitis (NASH) is a progressive disorder with aberrant lipid accumulation and subsequent inflammatory and profibrotic response. Therapeutic efforts at lipid reduction via increasing cytoplasmic lipolysis unfortunately worsens hepatitis due to toxicity of liberated fatty acid. An alternative approach could be lipid reduction through autophagic disposal, i.e., lipophagy. We engineered a synthetic adaptor protein to induce lipophagy, combining a lipid droplet-targeting signal with optimized LC3-interacting domain. Activating hepatocyte lipophagy in vivo strongly mitigated both steatosis and hepatitis in a diet-induced mouse NASH model. Mechanistically, activated lipophagy promoted the excretion of lipid from hepatocytes, thereby suppressing harmful intracellular accumulation of nonesterified fatty acid. A high-content compound screen identified alpelisib and digoxin, clinically-approved compounds, as effective activators of lipophagy. Administration of alpelisib or digoxin in vivo strongly inhibited the transition to steatohepatitis. These data thus identify lipophagy as a promising therapeutic approach to prevent NASH progression.
Collapse
Affiliation(s)
- Yoshito Minami
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan.
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Masahide Hamaguchi
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yusaku Kaneko
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Shunta Taminishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Toshiyuki Nishiji
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Akiyuki Taruno
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
- Japan Science and Technology Agency, PRESTO, Kawaguchi, Saitama, 332-0012, Japan
- Japan Science and Technology Agency, CREST, Kawaguchi, Saitama, 332-0012, Japan
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Zoltan Arany
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| |
Collapse
|
8
|
Nakai K, Umehara M, Minamida A, Yamauchi-Sawada H, Sunahara Y, Matoba Y, Okuno-Ozeki N, Nakamura I, Nakata T, Yagi-Tomita A, Uehara-Watanabe N, Ida T, Yamashita N, Kamezaki M, Kirita Y, Konishi E, Yasuda H, Matoba S, Tamagaki K, Kusaba T. Streptozotocin induces renal proximal tubular injury through p53 signaling activation. Sci Rep 2023; 13:8705. [PMID: 37248327 DOI: 10.1038/s41598-023-35850-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/24/2023] [Indexed: 05/31/2023] Open
Abstract
Streptozotocin (STZ), an anti-cancer drug that is primarily used to treat neuroendocrine tumors (NETs) in clinical settings, is incorporated into pancreatic β-cells or proximal tubular epithelial cells through the glucose transporter, GLUT2. However, its cytotoxic effects on kidney cells have been underestimated and the underlying mechanisms remain unclear. We herein demonstrated that DNA damage and subsequent p53 signaling were responsible for the development of STZ-induced tubular epithelial injury. We detected tubular epithelial DNA damage in NET patients treated with STZ. Unbiased transcriptomics of STZ-treated tubular epithelial cells in vitro showed the activation of the p53 signaling pathway. STZ induced DNA damage and activated p53 signaling in vivo in a dose-dependent manner, resulting in reduced membrane transporters. The pharmacological inhibition of p53 and sodium-glucose transporter 2 (SGLT2) mitigated STZ-induced epithelial injury. However, the cytotoxic effects of STZ on pancreatic β-cells were preserved in SGLT2 inhibitor-treated mice. The present results demonstrate the proximal tubular-specific cytotoxicity of STZ and the underlying mechanisms in vivo. Since the cytotoxic effects of STZ against β-cells were not impaired by dapagliflozin, pretreatment with an SGLT2 inhibitor has potential as a preventative remedy for kidney injury in NET patients treated with STZ.
Collapse
Affiliation(s)
- Kunihiro Nakai
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Minato Umehara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Atsushi Minamida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Hiroko Yamauchi-Sawada
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yasuto Sunahara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yayoi Matoba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Natsuko Okuno-Ozeki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Itaru Nakamura
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tomohiro Nakata
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Aya Yagi-Tomita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Noriko Uehara-Watanabe
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tomoharu Ida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Noriyuki Yamashita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Michitsugu Kamezaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Eiichi Konishi
- Department of Surgical Pathology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroaki Yasuda
- Department of Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan.
| |
Collapse
|
9
|
Ramadhiani R, Ikeda K, Miyagawa K, Ryanto GRT, Tamada N, Suzuki Y, Kirita Y, Matoba S, Hirata KI, Emoto N. Endothelial cell senescence exacerbates pulmonary hypertension by inducing juxtacrine Notch signaling in smooth muscle cells. iScience 2023; 26:106662. [PMID: 37192975 PMCID: PMC10182325 DOI: 10.1016/j.isci.2023.106662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 03/17/2023] [Accepted: 04/06/2023] [Indexed: 05/18/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a fatal disease characterized by a progressive increase in pulmonary artery pressure caused by pathological pulmonary artery remodeling. Here, we demonstrate that endothelial cell (EC) senescence plays a negative role in pulmonary hypertension via juxtacrine interaction with smooth muscle cells (SMCs). By using EC-specific progeroid mice, we discovered that EC progeria deteriorated vascular remodeling in the lungs, and exacerbated pulmonary hypertension in mice. Mechanistically, senescent ECs overexpressed Notch ligands, which resulted in increased Notch signaling and activated proliferation and migration capacities in neighboring SMCs. Pharmacological inhibition of Notch signaling reduced the effects of senescent ECs on SMCs functions in vitro, and improved the worsened pulmonary hypertension in EC-specific progeroid mice in vivo. Our findings show that EC senescence is a critical disease-modifying factor in PAH and that EC-mediated Notch signaling is a pharmacotherapeutic target for the treatment of PAH, particularly in the elderly.
Collapse
Affiliation(s)
- Risa Ramadhiani
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
| | - Koji Ikeda
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
- Department of Epidemiology for Longevity and Regional Health, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyou, Kyoto 6028566, Japan
- Department of Cardiology and Nephrology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyou, Kyoto 6028566, Japan
- Corresponding author
| | - Kazuya Miyagawa
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
| | - Gusty Rizky Tough Ryanto
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
| | - Naoki Tamada
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
| | - Yoko Suzuki
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
| | - Yuhei Kirita
- Department of Cardiology and Nephrology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyou, Kyoto 6028566, Japan
| | - Satoaki Matoba
- Department of Cardiology and Nephrology, Kyoto Prefectural University of Medicine, 465 Kajii, Kawaramachi-Hirokoji, Kamigyou, Kyoto 6028566, Japan
| | - Ken-ichi Hirata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
| | - Noriaki Emoto
- Laboratory of Clinical Pharmaceutical Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakitamachi, Higashinada, Kobe 658-8558, Japan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
- Corresponding author
| |
Collapse
|
10
|
Gerhardt LM, Koppitch K, van Gestel J, Guo J, Cho S, Wu H, Kirita Y, Humphreys BD, McMahon AP. Lineage Tracing and Single-Nucleus Multiomics Reveal Novel Features of Adaptive and Maladaptive Repair after Acute Kidney Injury. J Am Soc Nephrol 2023; 34:554-571. [PMID: 36735940 PMCID: PMC10103206 DOI: 10.1681/asn.0000000000000057] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 11/17/2022] [Indexed: 01/22/2023] Open
Abstract
SIGNIFICANCE STATEMENT Understanding the mechanisms underlying adaptive and maladaptive renal repair after AKI and their long-term consequences is critical to kidney health. The authors used lineage tracing of cycling cells and single-nucleus multiomics (profiling transcriptome and chromatin accessibility) after AKI. They demonstrated that AKI triggers a cell-cycle response in most epithelial and nonepithelial kidney cell types. They also showed that maladaptive proinflammatory proximal tubule cells (PTCs) persist until 6 months post-AKI, although they decreased in abundance over time, in part, through cell death. Single-nucleus multiomics of lineage-traced cells revealed regulatory features of adaptive and maladaptive repair. These included activation of cell state-specific transcription factors and cis-regulatory elements, and effects in PTCs even after adaptive repair, weeks after the injury event. BACKGROUND AKI triggers a proliferative response as part of an intrinsic cellular repair program, which can lead to adaptive renal repair, restoring kidney structure and function, or maladaptive repair with the persistence of injured proximal tubule cells (PTCs) and an altered kidney structure. However, the cellular and molecular understanding of these repair programs is limited. METHODS To examine chromatin and transcriptional responses in the same cell upon ischemia-reperfusion injury (IRI), we combined genetic fate mapping of cycling ( Ki67+ ) cells labeled early after IRI with single-nucleus multiomics-profiling transcriptome and chromatin accessibility in the same nucleus-and generated a dataset of 83,315 nuclei. RESULTS AKI triggered a broad cell cycle response preceded by cell type-specific and global transcriptional changes in the nephron, the collecting and vascular systems, and stromal and immune cell types. We observed a heterogeneous population of maladaptive PTCs throughout proximal tubule segments 6 months post-AKI, with a marked loss of maladaptive cells from 4 weeks to 6 months. Gene expression and chromatin accessibility profiling in the same nuclei highlighted differences between adaptive and maladaptive PTCs in the activity of cis-regulatory elements and transcription factors, accompanied by corresponding changes in target gene expression. Adaptive repair was associated with reduced expression of genes encoding transmembrane transport proteins essential to kidney function. CONCLUSIONS Analysis of genome organization and gene activity with single-cell resolution using lineage tracing and single-nucleus multiomics offers new insight into the regulation of renal injury repair. Weeks to months after mild-to-moderate IRI, maladaptive PTCs persist with an aberrant epigenetic landscape, and PTCs exhibit an altered transcriptional profile even following adaptive repair.
Collapse
Affiliation(s)
- Louisa M.S. Gerhardt
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Kari Koppitch
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Jordi van Gestel
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, California
- Developmental Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Jinjin Guo
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Sam Cho
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Haojia Wu
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Benjamin D. Humphreys
- Division of Nephrology, Department of Medicine, Washington University in St. Louis, St. Louis, Missouri
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, Missouri
| | - Andrew P. McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Keck School of Medicine of the University of Southern California, Los Angeles, California
| |
Collapse
|
11
|
Alcantara MC, Higuchi Y, Kirita Y, Matoba S, Hoshino A. Deep Mutational Scanning to Predict Escape from Bebtelovimab in SARS-CoV-2 Omicron Subvariants. Vaccines (Basel) 2023; 11:vaccines11030711. [PMID: 36992294 DOI: 10.3390/vaccines11030711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
The major concern with COVID-19 therapeutic monoclonal antibodies is the loss of efficacy against continuously emerging variants of SARS-CoV-2. To predict antibody efficacy against future Omicron subvariants, we conducted deep mutational scanning (DMS) encompassing all single mutations of the receptor-binding domain of the BA.2 strain utilizing an inverted infection assay with an ACE2-harboring virus and library spike-expressing cells. In the case of bebtelovimab, which preserves neutralization activity against BA.2 and BA.5, a broad range of amino acid substitutions at K444, V445, and G446, and some substitutions at P499 and T500, were indicated to achieve the antibody escape. Among subvariants with current rises in case numbers, BA2.75 with G446S partially evaded neutralization by bebtelovimab, while complete evasion was observed in XBB with V445P and BQ.1 with K444T. This is consistent with the DMS results against BA.2, highlighting the potential of DMS as a predictive tool for antibody escape.
Collapse
Affiliation(s)
- Mellissa C Alcantara
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| |
Collapse
|
12
|
Uehara-Watanabe N, Okuno-Ozeki N, Nakamura I, Nakata T, Nakai K, Yagi-Tomita A, Ida T, Yamashita N, Kamezaki M, Kirita Y, Matoba S, Tamagaki K, Kusaba T. Proximal tubular epithelia-specific transcriptomics of diabetic mice treated with dapagliflozin. Heliyon 2022; 8:e10615. [PMID: 36148274 PMCID: PMC9485043 DOI: 10.1016/j.heliyon.2022.e10615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/26/2022] [Accepted: 09/07/2022] [Indexed: 11/26/2022] Open
Abstract
Based on recent clinical trials using sodium-glucose co-transporter 2 inhibitor (SGLT2i) demonstrating the significant improvement of outcomes of diabetic kidney disease (DKD), the paradigm shift from “glomerulocentric” to “tubule centric” pathophysiology in DKD progression has been highlighted. Several responsible mechanisms for renoprotective effects by SGLT2i have been proposed recently, but the changes in proximal tubule-specific gene expression by SGLT2i in diabetic mice have not been elucidated. We report the analysis of the proximal tubular-specific pathway, demonstrating the downregulation of oxidative phosphorylation in dapagliflozin-treated db/db mice, a type 2 diabetic model. After 8-week treatment of dapagliflozin for db/db mice having a proximal tubule-specific tdTomato reporter, tdTomato-positive cells were isolated by FACS. Pathway analysis of RNA sequencing of isolated tubular epithelia revealed that oxidative phosphorylation was downregulated in dapagliflozin-treated mice. However, depletion of renal tissue ATP content in db/db mice was ameliorated by dapagliflozin administration. Pimonidazole staining demonstrated renal cortical tissue hypoxia in db/db mice, which was improved by dapagliflozin administration. This study suggests that dapagliflozin can ameliorate the excessive oxygen and ATP consumption, and subsequent tissue hypoxia in the diabetic kidney, which may explain, in part, the responsible mechanisms of the renoprotective effects of dapagliflozin. Oxidative phosphorylation is downregulated by dapagliflozin in the proximal tubules of diabetic kidneys. Renal tissue ATP content increased in dapagliflozin-treated diabetic mice. Dapagliflozin improved renal cortical hypoxia in type 2 diabetic mice.
Collapse
Affiliation(s)
- Noriko Uehara-Watanabe
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Natsuko Okuno-Ozeki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Itaru Nakamura
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiro Nakata
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kunihiro Nakai
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Yagi-Tomita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoharu Ida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriyuki Yamashita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Michitsugu Kamezaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| |
Collapse
|
13
|
Ikemura N, Taminishi S, Inaba T, Arimori T, Motooka D, Katoh K, Kirita Y, Higuchi Y, Li S, Suzuki T, Itoh Y, Ozaki Y, Nakamura S, Matoba S, Standley DM, Okamoto T, Takagi J, Hoshino A. An engineered ACE2 decoy neutralizes the SARS-CoV-2 Omicron variant and confers protection against infection in vivo. Sci Transl Med 2022; 14:eabn7737. [PMID: 35471044 PMCID: PMC9097879 DOI: 10.1126/scitranslmed.abn7737] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The Omicron (B.1.1.529) SARS-CoV-2 variant contains an unusually high number of mutations in the spike protein, raising concerns of escape from vaccines, convalescent serum and therapeutic drugs. Here we analyzed the degree to which Omicron pseudovirus evades neutralization by serum or therapeutic antibodies. Serum samples obtained 3 months after two doses of BNT162b2 vaccination exhibited 18-fold lower neutralization titers against Omicron than parental virus. Convalescent serum samples from individuals infected with the Alpha and Delta variants allowed similar frequencies of Omicron breakthrough infections. Domain-wise analysis using chimeric spike proteins revealed that this efficient evasion was primarily achieved by mutations clustered in the receptor-binding domain, but that multiple mutations in the N-terminal domain contributed as well. Omicron escaped a therapeutic cocktail of imdevimab and casirivimab, whereas sotrovimab, which targets a conserved region to avoid viral mutation, remains effective. Angiotensin-converting enzyme 2 (ACE2) decoys are another virus-neutralizing drug modality that are free, at least in theory, from complete escape. Deep mutational analysis demonstrated that, indeed, an engineered ACE2 molecule prevented escape for each single-residue mutation in the receptor-binding domain, similar to immunized serum. Engineered ACE2 neutralized Omicron comparably to the Wuhan strain and also showed a therapeutic effect against Omicron infection in hamsters and human ACE2 transgenic mice. Like previous SARS-CoV-2 variants, some sarbecoviruses showed high sensitivity against engineered ACE2, confirming the therapeutic value against diverse variants, including those that are yet to emerge.
Collapse
Affiliation(s)
- Nariko Ikemura
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Shunta Taminishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Tohru Inaba
- Department of Infection Control and Molecular Laboratory Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Takao Arimori
- Laboratory for Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Daisuke Motooka
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.,Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka 565-0871, Japan
| | - Kazutaka Katoh
- Department of Genome Informatics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.,Department of Systems Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Songling Li
- Department of Genome Informatics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.,Department of Systems Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Tatsuya Suzuki
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Yumi Itoh
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Yuki Ozaki
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Shota Nakamura
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.,Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka 565-0871, Japan.,Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka 565-0871, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Daron M Standley
- Department of Genome Informatics, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.,Department of Systems Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan.,Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka 565-0871, Japan
| | - Toru Okamoto
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan.,Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka 565-0871, Japan
| | - Junichi Takagi
- Laboratory for Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.,Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka 565-0871, Japan.,Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka 565-0871, Japan
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| |
Collapse
|
14
|
Kitani T, Kidokoro K, Nakata T, Kirita Y, Nakamura I, Nakai K, Yagi-Tomita A, Ida T, Uehara-Watanabe N, Ikeda K, Yamashita N, Humphreys BD, Kashihara N, Matoba S, Tamagaki K, Kusaba T. Kidney vascular congestion exacerbates acute kidney injury in mice. Kidney Int 2021; 101:551-562. [PMID: 34843756 DOI: 10.1016/j.kint.2021.11.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/01/2021] [Accepted: 11/09/2021] [Indexed: 01/15/2023]
Abstract
Heart failure is frequently accompanied by kidney failure and co-incidence of these organ failures worsens the mortality in patients with heart failure. Recent clinical observations revealed that increased kidney venous pressure, rather than decreased cardiac output, causes the deterioration of kidney function in patients with heart failure. However, the underlying pathophysiology is unknown. Here, we found that decreased blood flow velocity in peritubular capillaries by kidney congestion and upregulation of endothelial nuclear factor-κB (NF-κB) signaling synergistically exacerbate kidney injury. We generated a novel mouse model with unilateral kidney congestion by constriction of the inferior vena cava between kidney veins. Intravital imaging highlighted the notable dilatation of peritubular capillaries and decreased kidney blood flow velocity in the congestive kidney. Damage after ischemia reperfusion injury was exacerbated in the congestive kidney and accumulation of polymorphonuclear leukocytes within peritubular capillaries was noted at the acute phase after injury. Similar results were obtained in vitro, in which polymorphonuclear leukocytes adhesion on activated endothelial cells was decreased in flow velocity-dependent manner but cancelled by inhibition of NF-κB signaling. Pharmacological inhibition of NF-κB for the mice subjected by both kidney congestion and ischemia reperfusion injury ameliorated the accumulation of polymorphonuclear leukocytes and subsequent exacerbation of kidney injury. Thus, our study demonstrates the importance of decreased blood flow velocity accompanying activated NF-κB signaling in aggravation of kidney injury. Hence, inhibition of NF-κB signaling may be a therapeutic candidate for the vicious cycle between heart and kidney failure with increased kidney venous pressure.
Collapse
Affiliation(s)
- Takashi Kitani
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kengo Kidokoro
- Department of Nephrology and Hypertension, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Tomohiro Nakata
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Itaru Nakamura
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kunihiro Nakai
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Yagi-Tomita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoharu Ida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriko Uehara-Watanabe
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kisho Ikeda
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriyuki Yamashita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Benjamin D Humphreys
- Division of Nephrology, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Naoki Kashihara
- Department of Nephrology and Hypertension, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| |
Collapse
|
15
|
Yamashita N, Nakai K, Nakata T, Nakamura I, Kirita Y, Matoba S, Humphreys BD, Tamagaki K, Kusaba T. Cumulative DNA damage by repeated low-dose cisplatin injection promotes the transition of acute to chronic kidney injury in mice. Sci Rep 2021; 11:20920. [PMID: 34686727 PMCID: PMC8536734 DOI: 10.1038/s41598-021-00392-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/12/2021] [Indexed: 12/14/2022] Open
Abstract
Cisplatin is a commonly used anticancer drug, but nephrotoxicity is a dose-limiting adverse effect. Recent experimental and clinical observations have demonstrated that multiple injections of cisplatin induce the transition to chronic kidney disease; however, the underlying mechanisms remain unclear. We found that multiple injections of higher doses of cisplatin in a shorter interval affected the severity of kidney injury, causing kidney fibrosis to develop at a later time point. An additional injection of cisplatin during the recovery period after a prior injury, when proximal tubule epithelia are actively proliferating, induced substantial tubular injury by inducing more severe DNA damage than that induced by a single injection. Lineage tracing analysis of proximal tubular epithelia demonstrated that the tubular epithelia that underwent multiple rounds of cell division after multiple injections of cisplatin existed at the chronic phase, and these populations often expressed vcam1 + , suggesting the induction of proinflammatory failed-repair tubular epithelia. Our study revealed that as cisplatin exerts cytotoxic effects on actively proliferating cells, additional cisplatin injections before the completion of tubular repair exacerbates kidney injury through cumulative DNA damage. Appropriate both the setting of dosage and dosing intervals, with careful monitoring, are essential to prevent nephrotoxicity of repeated cisplatin treatment in cancer patients.
Collapse
Affiliation(s)
- Noriyuki Yamashita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan.,Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany
| | - Kunihiro Nakai
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tomohiro Nakata
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Itaru Nakamura
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Benjamin D Humphreys
- Division of Nephrology, Washington University School of Medicine in St. Louis, St. Louis, USA
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto, 602-8566, Japan.
| |
Collapse
|
16
|
Higuchi Y, Suzuki T, Arimori T, Ikemura N, Mihara E, Kirita Y, Ohgitani E, Mazda O, Motooka D, Nakamura S, Sakai Y, Itoh Y, Sugihara F, Matsuura Y, Matoba S, Okamoto T, Takagi J, Hoshino A. Engineered ACE2 receptor therapy overcomes mutational escape of SARS-CoV-2. Nat Commun 2021; 12:3802. [PMID: 34155214 PMCID: PMC8217473 DOI: 10.1038/s41467-021-24013-y] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/28/2021] [Indexed: 01/06/2023] Open
Abstract
SARS-CoV-2 has mutated during the global pandemic leading to viral adaptation to medications and vaccinations. Here we describe an engineered human virus receptor, ACE2, by mutagenesis and screening for binding to the receptor binding domain (RBD). Three cycles of random mutagenesis and cell sorting achieved sub-nanomolar affinity to RBD. Our structural data show that the enhanced affinity comes from better hydrophobic packing and hydrogen-bonding geometry at the interface. Additional disulfide mutations caused the fixing of a closed ACE2 conformation to avoid off-target effects of protease activity, and also improved structural stability. Our engineered ACE2 neutralized SARS-CoV-2 at a 100-fold lower concentration than wild type; we also report that no escape mutants emerged in the co-incubation after 15 passages. Therapeutic administration of engineered ACE2 protected hamsters from SARS-CoV-2 infection, decreased lung virus titers and pathology. Our results provide evidence of a therapeutic potential of engineered ACE2.
Collapse
Affiliation(s)
- Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tatsuya Suzuki
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Takao Arimori
- Laboratory for Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka, Japan
| | - Nariko Ikemura
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Emiko Mihara
- Laboratory for Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Eriko Ohgitani
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Daisuke Motooka
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shota Nakamura
- Department of Infection Metagenomics, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yusuke Sakai
- Department of Veterinary Pathology, Yamaguchi University, Yamaguchi, Japan
| | - Yumi Itoh
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Fuminori Sugihara
- The Core Instrumentation Facility, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yoshiharu Matsuura
- Department of Molecular Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toru Okamoto
- Institute for Advanced Co-Creation Studies, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.
| | - Junichi Takagi
- Laboratory for Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka, Japan.
| | - Atsushi Hoshino
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| |
Collapse
|
17
|
Yamashita N, Kusaba T, Nakata T, Tomita A, Ida T, Watanabe-Uehara N, Ikeda K, Kitani T, Uehara M, Kirita Y, Matoba S, Humphreys BD, Tamagaki K. Intratubular epithelial-mesenchymal transition and tubular atrophy after kidney injury in mice. Am J Physiol Renal Physiol 2020; 319:F579-F591. [PMID: 32799673 DOI: 10.1152/ajprenal.00108.2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Tubular atrophy is a common pathological feature of kidney fibrosis. Although fibroblasts play a predominant role in tissue fibrosis, the role of repairing tubular epithelia in tubular atrophy is unclear. We demonstrated the essential role of focal adhesion kinase (FAK)-mediated intratubular epithelial-mesenchymal transition (EMT) in the pathogenesis of tubular atrophy after severe ischemia-reperfusion injury (IRI). Actively proliferating tubular epithelia undergoing intratubular EMT were noted in the acute phase of severe IRI, resulting in tubular atrophy in the chronic phase, reflecting failed tubular repair. Furthermore, FAK was phosphorylated in the tubular epithelia in the acute phase of severe IRI, and its inhibition ameliorated both tubular atrophy and interstitial fibrosis in the chronic phase after injury. In vivo clonal analysis of single-labeled proximal tubular epithelial cells after IRI using proximal tubule reporter mice revealed substantial clonal expansion after IRI, reflecting active epithelial proliferation during repair. The majority of these proliferating epithelia were located in atrophic and nonfunctional tubules, and FAK inhibition was sufficient to prevent tubular atrophy. In vitro, transforming growth factor-β induced FAK phosphorylation and an EMT phenotype, which was also prevented by FAK inhibition. In an in vitro tubular epithelia gel contraction assay, transforming growth factor-β treatment accelerated gel contraction, which was suppressed by FAK inhibition. In conclusion, injury-induced intratubular EMT is closely related to tubular atrophy in a FAK-dependent manner.
Collapse
Affiliation(s)
- Noriyuki Yamashita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiro Nakata
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Aya Tomita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoharu Ida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Noriko Watanabe-Uehara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kisho Ikeda
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takashi Kitani
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masahiro Uehara
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Benjamin D Humphreys
- Division of Nephrology, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| |
Collapse
|
18
|
Abstract
After acute kidney injury (AKI), patients either recover or alternatively develop fibrosis and chronic kidney disease. Interactions between injured epithelia, stroma, and inflammatory cells determine whether kidneys repair or undergo fibrosis, but the molecular events that drive these processes are poorly understood. Here, we use single nucleus RNA sequencing of a mouse model of AKI to characterize cell states during repair from acute injury. We identify a distinct proinflammatory and profibrotic proximal tubule cell state that fails to repair. Deconvolution of bulk RNA-seq datasets indicates that this failed-repair proximal tubule cell (FR-PTC) state can be detected in other models of kidney injury, increasing during aging in rat kidney and over time in human kidney allografts. We also describe dynamic intercellular communication networks and discern transcriptional pathways driving successful vs. failed repair. Our study provides a detailed description of cellular responses after injury and suggests that the FR-PTC state may represent a therapeutic target to improve repair.
Collapse
Affiliation(s)
- Yuhei Kirita
- Division of Nephrology, Department of Medicine, Washington University in Saint Louis School of Medicine, St. Louis, MO 63110
- Department of Nephrology, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Haojia Wu
- Division of Nephrology, Department of Medicine, Washington University in Saint Louis School of Medicine, St. Louis, MO 63110
| | - Kohei Uchimura
- Division of Nephrology, Department of Medicine, Washington University in Saint Louis School of Medicine, St. Louis, MO 63110
| | - Parker C Wilson
- Division of Anatomic and Molecular Pathology, Department of Pathology and Immunology, Washington University in Saint Louis School of Medicine, St. Louis, MO 63110
| | - Benjamin D Humphreys
- Division of Nephrology, Department of Medicine, Washington University in Saint Louis School of Medicine, St. Louis, MO 63110;
- Department of Developmental Biology, Washington University in Saint Louis School of Medicine, St. Louis, MO 63110
| |
Collapse
|
19
|
Kirita Y, Chang-Panesso M, Humphreys BD. Recent Insights into Kidney Injury and Repair from Transcriptomic Analyses. Nephron Clin Pract 2019; 143:162-165. [PMID: 31112966 PMCID: PMC6821561 DOI: 10.1159/000500638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/29/2019] [Indexed: 12/26/2022] Open
Abstract
Injured tubular epithelium exhibits cellular plasticity in that it can dedifferentiate, reenter the cell cycle, and subsequently either redifferentiate or adopt a chronically injured phenotype. Although some nephrogenic genes are reexpressed during injury and repair, developmental pathways are only partially recapitulated and the process is more accurately viewed as an entirely new program intrinsic to the regenerative response to injury. Recent advances in our understanding of the molecular circuitry underpinning epithelial plasticity have come from bulk, cell-specific, and single-cell transcriptomic analyses. These results have begun to define the signaling pathways and gene regulatory networks governing the epithelial injury response. In this review, we highlight recent transcriptomic analyses in kidney injury, repair and fibrosis, and outline the ways that these studies are improving our understanding of kidney regeneration.
Collapse
Affiliation(s)
- Yuhei Kirita
- Division of Nephrology, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Monica Chang-Panesso
- Division of Nephrology, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA
| | - Benjamin D Humphreys
- Division of Nephrology, Department of Medicine, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA,
- Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri, USA,
| |
Collapse
|
20
|
Guo C, Kong W, Kamimoto K, Rivera-Gonzalez GC, Yang X, Kirita Y, Morris SA. CellTag Indexing: genetic barcode-based sample multiplexing for single-cell genomics. Genome Biol 2019; 20:90. [PMID: 31072405 PMCID: PMC6509836 DOI: 10.1186/s13059-019-1699-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 04/23/2019] [Indexed: 12/15/2022] Open
Abstract
High-throughput single-cell assays increasingly require special consideration in experimental design, sample multiplexing, batch effect removal, and data interpretation. Here, we describe a lentiviral barcode-based multiplexing approach, CellTag Indexing, which uses predefined genetic barcodes that are heritable, enabling cell populations to be tagged, pooled, and tracked over time in the same experimental replicate. We demonstrate the utility of CellTag Indexing by sequencing transcriptomes using a variety of cell types, including long-term tracking of cell engraftment and differentiation in vivo. Together, this presents CellTag Indexing as a broadly applicable genetic multiplexing tool that is complementary with existing single-cell technologies.
Collapse
Affiliation(s)
- Chuner Guo
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Wenjun Kong
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Kenji Kamimoto
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Guillermo C Rivera-Gonzalez
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Xue Yang
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Yuhei Kirita
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Division of Nephrology, Department of Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Samantha A Morris
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA.
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA.
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA.
| |
Collapse
|
21
|
Guo C, Kong W, Kamimoto K, Rivera-Gonzalez GC, Yang X, Kirita Y, Morris SA. CellTag Indexing: genetic barcode-based sample multiplexing for single-cell genomics. Genome Biol 2019. [PMID: 31072405 DOI: 10.1101/335547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023] Open
Abstract
High-throughput single-cell assays increasingly require special consideration in experimental design, sample multiplexing, batch effect removal, and data interpretation. Here, we describe a lentiviral barcode-based multiplexing approach, CellTag Indexing, which uses predefined genetic barcodes that are heritable, enabling cell populations to be tagged, pooled, and tracked over time in the same experimental replicate. We demonstrate the utility of CellTag Indexing by sequencing transcriptomes using a variety of cell types, including long-term tracking of cell engraftment and differentiation in vivo. Together, this presents CellTag Indexing as a broadly applicable genetic multiplexing tool that is complementary with existing single-cell technologies.
Collapse
Affiliation(s)
- Chuner Guo
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Wenjun Kong
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Kenji Kamimoto
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Guillermo C Rivera-Gonzalez
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Xue Yang
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Yuhei Kirita
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
- Division of Nephrology, Department of Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA
| | - Samantha A Morris
- Department of Developmental Biology, Washington University School of Medicine in St Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA.
- Department of Genetics, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA.
- Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, 660 S. Euclid Avenue, Campus Box 8103, St. Louis, MO, 63110, USA.
| |
Collapse
|
22
|
Affiliation(s)
- Haojia Wu
- Division of Nephrology, Department of Medicine and
| | - Yuhei Kirita
- Division of Nephrology, Department of Medicine and
| | | | - Benjamin D Humphreys
- Division of Nephrology, Department of Medicine and .,Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri
| |
Collapse
|
23
|
Wu H, Kirita Y, Donnelly EL, Humphreys BD. Advantages of Single-Nucleus over Single-Cell RNA Sequencing of Adult Kidney: Rare Cell Types and Novel Cell States Revealed in Fibrosis. J Am Soc Nephrol 2018; 30:23-32. [PMID: 30510133 DOI: 10.1681/asn.2018090912] [Citation(s) in RCA: 364] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 10/21/2018] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND A challenge for single-cell genomic studies in kidney and other solid tissues is generating a high-quality single-cell suspension that contains rare or difficult-to-dissociate cell types and is free of both RNA degradation and artifactual transcriptional stress responses. METHODS We compared single-cell RNA sequencing (scRNA-seq) using the DropSeq platform with single-nucleus RNA sequencing (snRNA-seq) using sNuc-DropSeq, DroNc-seq, and 10X Chromium platforms on adult mouse kidney. We validated snRNA-seq on fibrotic kidney from mice 14 days after unilateral ureteral obstruction (UUO) surgery. RESULTS A total of 11,391 transcriptomes were generated in the comparison phase. We identified ten clusters in the scRNA-seq dataset, but glomerular cell types were absent, and one cluster consisted primarily of artifactual dissociation-induced stress response genes. By contrast, snRNA-seq from all three platforms captured a diversity of kidney cell types that were not represented in the scRNA-seq dataset, including glomerular podocytes, mesangial cells, and endothelial cells. No stress response genes were detected. Our snRNA-seq protocol yielded 20-fold more podocytes compared with published scRNA-seq datasets (2.4% versus 0.12%, respectively). Unexpectedly, single-cell and single-nucleus platforms had equivalent gene detection sensitivity. For validation, analysis of frozen day 14 UUO kidney revealed rare juxtaglomerular cells, novel activated proximal tubule and fibroblast cell states, and previously unidentified tubulointerstitial signaling pathways. CONCLUSIONS snRNA-seq achieves comparable gene detection to scRNA-seq in adult kidney, and it also has substantial advantages, including reduced dissociation bias, compatibility with frozen samples, elimination of dissociation-induced transcriptional stress responses, and successful performance on inflamed fibrotic kidney.
Collapse
Affiliation(s)
- Haojia Wu
- Division of Nephrology, Department of Medicine and
| | - Yuhei Kirita
- Division of Nephrology, Department of Medicine and
| | | | - Benjamin D Humphreys
- Division of Nephrology, Department of Medicine and .,Department of Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri
| |
Collapse
|
24
|
Wu H, Uchimura K, Donnelly EL, Kirita Y, Morris SA, Humphreys BD. Comparative Analysis and Refinement of Human PSC-Derived Kidney Organoid Differentiation with Single-Cell Transcriptomics. Cell Stem Cell 2018; 23:869-881.e8. [PMID: 30449713 DOI: 10.1016/j.stem.2018.10.010] [Citation(s) in RCA: 337] [Impact Index Per Article: 56.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 08/09/2018] [Accepted: 10/06/2018] [Indexed: 12/18/2022]
Abstract
Kidney organoids derived from human pluripotent stem cells have great utility for investigating organogenesis and disease mechanisms and, potentially, as a replacement tissue source, but how closely organoids derived from current protocols replicate adult human kidney is undefined. We compared two directed differentiation protocols by single-cell transcriptomics of 83,130 cells from 65 organoids with single-cell transcriptomes of fetal and adult kidney cells. Both protocols generate a diverse range of kidney cells with differing ratios, but organoid-derived cell types are immature, and 10%-20% of cells are non-renal. Reconstructing lineage relationships by pseudotemporal ordering identified ligands, receptors, and transcription factor networks associated with fate decisions. Brain-derived neurotrophic factor (BDNF) and its cognate receptor NTRK2 were expressed in the neuronal lineage during organoid differentiation. Inhibiting this pathway improved organoid formation by reducing neurons by 90% without affecting kidney differentiation, highlighting the power of single-cell technologies to characterize and improve organoid differentiation.
Collapse
Affiliation(s)
- Haojia Wu
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kohei Uchimura
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Erinn L Donnelly
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Yuhei Kirita
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Samantha A Morris
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA; Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Benjamin D Humphreys
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
25
|
Wu H, Malone AF, Donnelly EL, Kirita Y, Uchimura K, Ramakrishnan SM, Gaut JP, Humphreys BD. Single-Cell Transcriptomics of a Human Kidney Allograft Biopsy Specimen Defines a Diverse Inflammatory Response. J Am Soc Nephrol 2018; 29:2069-2080. [PMID: 29980650 DOI: 10.1681/asn.2018020125] [Citation(s) in RCA: 247] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/05/2018] [Indexed: 01/11/2023] Open
Abstract
Background Single-cell genomics techniques are revolutionizing our ability to characterize complex tissues. By contrast, the techniques used to analyze renal biopsy specimens have changed little over several decades. We tested the hypothesis that single-cell RNA-sequencing can comprehensively describe cell types and states in a human kidney biopsy specimen.Methods We generated 8746 single-cell transcriptomes from a healthy adult kidney and a single kidney transplant biopsy core by single-cell RNA-sequencing. Unsupervised clustering analysis of the biopsy specimen was performed to identify 16 distinct cell types, including all of the major immune cell types and most native kidney cell types, in this biopsy specimen, for which the histologic read was mixed rejection.Results Monocytes formed two subclusters representing a nonclassical CD16+ group and a classic CD16- group expressing dendritic cell maturation markers. The presence of both monocyte cell subtypes was validated by staining of independent transplant biopsy specimens. Comparison of healthy kidney epithelial transcriptomes with biopsy specimen counterparts identified novel segment-specific proinflammatory responses in rejection. Endothelial cells formed three distinct subclusters: resting cells and two activated endothelial cell groups. One activated endothelial cell group expressed Fc receptor pathway activation and Ig internalization genes, consistent with the pathologic diagnosis of antibody-mediated rejection. We mapped previously defined genes that associate with rejection outcomes to single cell types and generated a searchable online gene expression database.Conclusions We present the first step toward incorporation of single-cell transcriptomics into kidney biopsy specimen interpretation, describe a heterogeneous immune response in mixed rejection, and provide a searchable resource for the scientific community.
Collapse
Affiliation(s)
- Haojia Wu
- Division of Nephrology, Department of Medicine and Departments of
| | - Andrew F Malone
- Division of Nephrology, Department of Medicine and Departments of
| | - Erinn L Donnelly
- Division of Nephrology, Department of Medicine and Departments of
| | - Yuhei Kirita
- Division of Nephrology, Department of Medicine and Departments of
| | - Kohei Uchimura
- Division of Nephrology, Department of Medicine and Departments of
| | | | | | - Benjamin D Humphreys
- Division of Nephrology, Department of Medicine and Departments of .,Developmental Biology, Washington University in St. Louis School of Medicine, St. Louis, Missouri
| |
Collapse
|
26
|
Kirita Y, Kami D, Ishida R, Adachi T, Tamagaki K, Matoba S, Kusaba T, Gojo S. Preserved Nephrogenesis Following Partial Nephrectomy in Early Neonates. Sci Rep 2016; 6:26792. [PMID: 27244673 PMCID: PMC4886582 DOI: 10.1038/srep26792] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 05/10/2016] [Indexed: 12/11/2022] Open
Abstract
Reconstitution of total nephron segments after resection in the adult kidney has not been achieved; however, whether the neonatal kidney can maintain the capacity for neo-nephrogenesis after resection is unknown. We performed partial resection of the kidney in neonatal rats on postnatal days 1 (P1x kidney) and 4 (P4x kidney) and examined morphological changes and relevant factors. The P1x kidney bulged into the newly formed cortex from the wound edge, while nephrogenesis failure was prominent in the P4x kidney. Twenty-eight days post-resection, the glomerular number, cortex area, and collecting duct were preserved in the P1x kidney, whereas these parameters were markedly decreased in the P4x kidney. During normal development, Six2 expression and Six2+ nephron progenitor cells in the cap mesenchyme both rapidly disappear after birth. However, time course analysis for the P1x kidney showed that Six2 expression and Six2+ cells were well preserved in the tissue surrounding the resected area even 2 days after resection. In conclusion, our results indicate that kidneys in early neonate rats retain the capability for neo-nephrogenesis after resection; however, this ability is lost soon after birth, which may be attributed to a declining amount of Six2+ cells.
Collapse
Affiliation(s)
- Yuhei Kirita
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Daisuke Kami
- Department of Regenerative Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Ryo Ishida
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Takaomi Adachi
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Keiichi Tamagaki
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Tetsuro Kusaba
- Department of Nephrology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| | - Satoshi Gojo
- Department of Regenerative Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii cho, Kamigyo ku, Kyoto 602-8566, Japan
| |
Collapse
|
27
|
Ishida R, Kami D, Kusaba T, Kirita Y, Kishida T, Mazda O, Adachi T, Gojo S. Kidney-specific Sonoporation-mediated Gene Transfer. Mol Ther 2015; 24:125-34. [PMID: 26419704 PMCID: PMC4754547 DOI: 10.1038/mt.2015.171] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 09/07/2015] [Indexed: 12/17/2022] Open
Abstract
Sonoporation can deliver agents to target local organs by systemic administration, while decreasing the associated risk of adverse effects. Sonoporation has been used for a variety of materials and in a variety of organs. Herein, we demonstrated that local sonoporation to the kidney can offer highly efficient transfer of oligonucleotides, which were systemically administrated to the tubular epithelium with high specificity. Ultrasonic wave irradiation to the kidney collapsed the microbubbles and transiently affected the glomerular filtration barrier and increased glomerular permeability. Oligonucleotides were passed through the barrier all at once and were absorbed throughout the tubular epithelium. Tumor necrosis factor alpha (TNFα), which plays a central role in renal ischemia-reperfusion injury, was targeted using small interfering RNA (siRNA) with renal sonoporation in a murine model. The reduction of TNFα expression after single gene transfer significantly inhibited the expression of kidney injury markers, suggesting that systemic administration of siRNA under temporary and local sonoporation could be applicable in the clinical setting of ischemic acute kidney injury.
Collapse
Affiliation(s)
- Ryo Ishida
- Division of Nephrology, Department of Internal Medicine, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Daisuke Kami
- Department of Regenerative Medicine, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuro Kusaba
- Division of Nephrology, Department of Internal Medicine, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuhei Kirita
- Division of Nephrology, Department of Internal Medicine, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsunao Kishida
- Department of Immunology, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takaomi Adachi
- Division of Nephrology, Department of Internal Medicine, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoshi Gojo
- Department of Regenerative Medicine, Graduate School of Medical Science Kyoto Prefectural University of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| |
Collapse
|
28
|
Kawasaki T, Kirita Y, Kami D, Kitani T, Ozaki C, Itakura Y, Toyoda M, Gojo S. Novel detergent for whole organ tissue engineering. J Biomed Mater Res A 2015; 103:3364-73. [PMID: 25850947 DOI: 10.1002/jbm.a.35474] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/17/2015] [Accepted: 04/02/2015] [Indexed: 02/03/2023]
Abstract
Whole organ tissue engineering for various organs, including the heart, lung, liver, and kidney, has demonstrated promising results for end-stage organ failure. However, the sodium dodecyl sulfate (SDS)-based protocol for standard decellularization has drawbacks such as clot formation in vascularized transplantation and poor cell engraftment in recellularization procedures. Preservation of the surface milieu of extracellular matrices (ECMs) might be crucial for organ generation based on decellularization/recellularization engineering. We examined a novel detergent, sodium lauryl ether sulfate (SLES), to determine whether it could overcome the drawbacks associated with SDS using rat heart and kidney. Both organs were perfused in an antegrade fashion with either SLES or SDS. Although immunohistochemistry for collagen I, IV, laminin, and fibronectin showed similar preservation in both detergents, morphological analysis using scanning electron microscopy and an assay of glycosaminoglycan content on ECMs showed that SLES-treated tissues had better-preserved ECMs than SDS-treated tissues. Mesenteric transplantation revealed SLES did not induce significant inflammation, as opposed to SDS. Platelet adhesion to decellularized tissues was significantly reduced with SLES. Overall, SLES could replace older detergents such as SDS in the decellularization process for generation of transplantable recellularized organs.
Collapse
Affiliation(s)
- Takanori Kawasaki
- Department of Cardiovascular Medicine, Kyoto Prefectural University of Medicine, Kamigyo ku, Kyoto, 602-8566, Japan
| | - Yuhei Kirita
- Department of Nephrology, Kyoto Prefectural University of Medicine, Kamigyo ku, Kyoto, 602-8566, Japan
| | - Daisuke Kami
- Department of Regenerative Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo ku, Kyoto, 602-8566, Japan
| | - Tomoya Kitani
- Department of Cardiovascular Medicine, Kyoto Prefectural University of Medicine, Kamigyo ku, Kyoto, 602-8566, Japan
| | - Chisa Ozaki
- Sanyo Chemical Industries, Ltd, Biomedical Product Itakura, Yako
| | - Yoko Itakura
- Department of Vascular Medicine, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Masashi Toyoda
- Department of Vascular Medicine, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Satoshi Gojo
- Department of Regenerative Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo ku, Kyoto, 602-8566, Japan
| |
Collapse
|
29
|
Kusaba T, Kirita Y, Ishida R, Matsuoka E, Nakayama M, Uchiyama H, Kajita Y. Morphological analysis of biofilm of peritoneal dialysis catheter in refractory peritonitis patient. CEN Case Rep 2012; 1:50-54. [PMID: 28509153 DOI: 10.1007/s13730-012-0012-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 03/14/2012] [Indexed: 01/05/2023] Open
Abstract
A 66-year-old man undergoing peritoneal dialysis (PD) was admitted to our hospital for treatment of PD-related peritonitis. Culture of the PD fluid revealed the presence of Citrobacter freundii, and therapy with ceftazidime was started intraperitoneally. The cell count in PD fluid slowly decreased over time during the first 2 weeks of treatment, but increased again on the 14th hospital day. A second culture of the PD fluid revealed the presence of Enterococcus species. A switch in antibiotic therapy to vancomycin did not improve the cell count in the PD fluid. A third culture of the PD fluid revealed the presence of Stenotrophomonas maltophilia. The PD was discontinued and the catheter removed on the 28th hospital day. Examination of the catheter revealed that the inner tip was coated with a fibrous sheet of cells, suggesting biofilm formation. Following catheter removal, the patient was administered intravenous ciprofloxacin, and the inflammatory reaction started to disappear immediately and had completely disappeared after 1 week of treatment. Microscopic analysis of the fibrous structure on the catheter revealed multiple layers of various inflammatory cells. Immunostaining revealed the presence of CD44-positive polynuclear cells, indicating neutrophils, facing the catheter lumen. CD68-positive cells, indicating macrophages, were observed in the following layer, and keratin-positive cells, indicating peritoneal mesothelial cells, were present at the bottom of the structure. Based on the immediate improvement of PD-related peritonitis after catheter removal, we presumed that this biofilm contributed to the intractability of the patient's peritonitis. Morphological analysis of catheter revealed that both the mesothelial cells and the various inflammatory cells may have contributed to biofilm development.
Collapse
Affiliation(s)
- Tetsuro Kusaba
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan.
| | - Yuhei Kirita
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan
| | - Ryo Ishida
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan
| | - Eiko Matsuoka
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan
| | - Mayuka Nakayama
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan
| | - Hitoji Uchiyama
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan
| | - Yoshihiro Kajita
- Division of Nephrology, Nantan General Hospital, 25 Yagi-Ueno, Yagi-cho, Nantan, Kyoto, 629-0197, Japan
| |
Collapse
|
30
|
Ishida R, Kusaba T, Kirita Y, Matsuoka E, Nakayama M, Uchiyama H, Kajita Y. [Case of an hemodialysis patient with MYH9 disorders]. Nihon Jinzo Gakkai Shi 2011; 53:195-199. [PMID: 21516706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A 70-year-old woman was admitted to our hospital for repair of vascular access for maintenance hemodialysis. She had been undergoing the maintenance hemodialysis for 20 years, however, her underlying renal disease had not been identified. The laboratory data on admission revealed marked thrombocytopenia with giant platelets and a Dohle body-like cytoplasmic inclusion body in granulocytes. The same hematological abnormalities were also detected in the peripheral blood smear of her daughter. We suspected hereditary macrothrombocytopenia and performed gene analysis of the MYH9 gene that encodes the nonmuscle myosin heavy chain-II A (NMMHC- II A). Mutational analysis showed the heterozygous mutation, c. 1841 G>A, in exon 38 of the MYH9 gene (E1841 K). We further examined intracellular NMMHC- II A localization in granulocytes by immunofluorescent analysis. The results revealed that one or two NMMHC- II A-positive granules were observed in neutrophils, whereas these granules were not detected in the granulocytes of normal healthy volunteers. From these analyses, we diagnosed her disease as MYH9 disorder, especially as a May-Hegglin abnormality. Thrombocytopenia is sometimes observed in maintenance hemodialysis patients. To avoid inappropriate medical intervention for the thrombocytopenia, MYH9 disorders should be differentiated.
Collapse
Affiliation(s)
- Ryo Ishida
- Division of Nephrology, Kyoto First Red Cross Hospital, Kyoto, Japan
| | | | | | | | | | | | | |
Collapse
|
31
|
Affiliation(s)
- T Wakabayashi
- Department of Laboratory Medicine, University of Tokyo, Japan
| | | | | | | |
Collapse
|
32
|
Miyazaki K, Kirita Y. Extensive simultaneous multisegment laminectomy for myelopathy due to the ossification of the posterior longitudinal ligament in the cervical region. Spine (Phila Pa 1976) 1986; 11:531-42. [PMID: 3097835 DOI: 10.1097/00007632-198607000-00005] [Citation(s) in RCA: 72] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Extensive simultaneous multisegment laminectomy (ESML) for treatment of ossification of the posterior longitudinal ligament (OPLL) in the cervical region is a technique which cuts the laminae on the median line and on the pedicles with an air drill, and then, the right and left halves of laminae are lifted simultaneously. This technique provides a protection to the spinal cord that swells instantaneously after decompression. A total of 155 cases were followed up for more than 1 year. According to the Japanese Orthopedic Association's evaluation criteria, 127 cases (81.9%) showed some improvement; specifically, 57 cases (36.8%) were rated excellent; 28 (18.1%), good; 42 (27.1%), fair; 11 (7.1%), unchanged; and 17 (11.0%) had poor results.
Collapse
|
33
|
Kirita Y. [Extensive pressure-releasing laminectomy]. Nihon Seikeigeka Gakkai Zasshi 1984; 58:241-52. [PMID: 6432925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
34
|
Kirita Y. [Ossification of the posterior longitudinal ligament of cervical spine]. Nihon Rinsho 1978; Suppl:2360-1. [PMID: 99550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
35
|
Onomura T, Okamoto S, Yamamoto K, Kirita Y, Tanaka S. [Evaluation of surgical therapy in spondylolysis and spondylolisthesis and follow-up studies by each method]. Nihon Seikeigeka Gakkai Zasshi 1970; 44:712-7. [PMID: 5531139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
36
|
Kirita Y. [Whiplash injury--diagnosis and treatment]. Geka Chiryo 1967; 17:54-71. [PMID: 5630663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|