1
|
Miki S, Sakai K, Nakagawa T, Tanaka T, Liu L, Yamashita H, Kusumoto KI. Analysis of nitrogen source assimilation in industrial strains of Aspergillus oryzae. J Biosci Bioeng 2024; 137:231-238. [PMID: 38346913 DOI: 10.1016/j.jbiosc.2024.01.003] [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: 11/02/2023] [Revised: 12/22/2023] [Accepted: 01/07/2024] [Indexed: 03/20/2024]
Abstract
Nitrogen source assimilation is important for the biological functions of fungi, and its pathway has been deeply studied. Aspergillus oryzae mutants defective in nitrogen source assimilation are known to grow poorly on Czapek-Dox (CD) medium. In this study, we found an industrial strain of A. oryzae that grew very poorly on a CD medium containing sodium nitrate as a nitrogen source. We used media with various nitrogen components to examine the steps affecting the nitrogen source assimilation pathway of this strain. The strain grew well on the CD medium supplied with nitrite salt or ammonium salt, suggesting that the strain was defective in nitrate assimilation step. To ascertain the gene causing the defect of nitrate assimilation, a gene expression vector harboring either niaD or crnA of A. oryzae RIB40 was introduced into the industrial strain. The industrial strain containing the crnA vector recovered its growth. This is the first report that a mutation of crnA causes poor growth on CD medium in an industrial strain of A. oryzae, and crnA can be used as a transformation marker for crnA deficient strains.
Collapse
Affiliation(s)
- Shouhei Miki
- Higuchi Matsunosuke Shoten Co., Ltd., 1-14-2 Harimacho, Abeno-ku, Osaka-shi, Osaka 545-0022, Japan; Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kanae Sakai
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takuro Nakagawa
- Higuchi Matsunosuke Shoten Co., Ltd., 1-14-2 Harimacho, Abeno-ku, Osaka-shi, Osaka 545-0022, Japan
| | - Takumi Tanaka
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Liyun Liu
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hideyuki Yamashita
- Higuchi Matsunosuke Shoten Co., Ltd., 1-14-2 Harimacho, Abeno-ku, Osaka-shi, Osaka 545-0022, Japan
| | - Ken-Ichi Kusumoto
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
| |
Collapse
|
2
|
Xu R, Pan Z, Nakagawa T. Gross Chromosomal Rearrangement at Centromeres. Biomolecules 2023; 14:28. [PMID: 38254628 PMCID: PMC10813616 DOI: 10.3390/biom14010028] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024] Open
Abstract
Centromeres play essential roles in the faithful segregation of chromosomes. CENP-A, the centromere-specific histone H3 variant, and heterochromatin characterized by di- or tri-methylation of histone H3 9th lysine (H3K9) are the hallmarks of centromere chromatin. Contrary to the epigenetic marks, DNA sequences underlying the centromere region of chromosomes are not well conserved through evolution. However, centromeres consist of repetitive sequences in many eukaryotes, including animals, plants, and a subset of fungi, including fission yeast. Advances in long-read sequencing techniques have uncovered the complete sequence of human centromeres containing more than thousands of alpha satellite repeats and other types of repetitive sequences. Not only tandem but also inverted repeats are present at a centromere. DNA recombination between centromere repeats can result in gross chromosomal rearrangement (GCR), such as translocation and isochromosome formation. CENP-A chromatin and heterochromatin suppress the centromeric GCR. The key player of homologous recombination, Rad51, safeguards centromere integrity through conservative noncrossover recombination between centromere repeats. In contrast to Rad51-dependent recombination, Rad52-mediated single-strand annealing (SSA) and microhomology-mediated end-joining (MMEJ) lead to centromeric GCR. This review summarizes recent findings on the role of centromere and recombination proteins in maintaining centromere integrity and discusses how GCR occurs at centromeres.
Collapse
Affiliation(s)
- Ran Xu
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| | - Ziyi Pan
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| | - Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka 560-0043, Osaka, Japan
| |
Collapse
|
3
|
Shimizu Y, Miyagi A, Nakagawa T. Development of continuous measurement system for hydrogen and impurity gases using detector tube. Rev Sci Instrum 2023; 94:095114. [PMID: 37737704 DOI: 10.1063/5.0152773] [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] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 08/26/2023] [Indexed: 09/23/2023]
Abstract
A relatively accurate, inexpensive, simple, and continuous quantification system for hydrogen and impurity gas(es) using a detector tube was developed in this study. Additionally, different detector tubes can be applied to measure different types of gases in a wide range from ppm order to % level. We optimized this system and evaluated its accuracy as well as the behavior of released H2 and impurity (NH3) gases from a hydrolysis of ammonia borane using a Pt/Al2O3 catalyst. The accuracy of hydrogen quantitation achieved by this system was comparable to that of commercial mass flow meters, and the accuracy of ammonia quantitation was 10% or 5% relative standard deviation, which depends on the detector tube. The concentration of released NH3 was evaluated by image analysis with a time-lapse video of the detector tube and succeeded in analyzing from ppm to % order. The H2 and NH3 release behaviors agreed with pH, and the percentage of reaction was estimated by NMR measurement of the reacted solution. These results confirmed the accuracy of this system.
Collapse
Affiliation(s)
- Y Shimizu
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - A Miyagi
- Okinawa Prefectural Naha Kokusai Senior High School, 1-29-1, Ameku, Naha, Okinawa 900-0005, Japan
- Science Education Academy of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - T Nakagawa
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| |
Collapse
|
4
|
Mongia P, Toyofuku N, Pan Z, Xu R, Kinoshita Y, Oki K, Takahashi H, Ogura Y, Hayashi T, Nakagawa T. Fission yeast Srr1 and Skb1 promote isochromosome formation at the centromere. Commun Biol 2023; 6:551. [PMID: 37237082 DOI: 10.1038/s42003-023-04925-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Rad51 maintains genome integrity, whereas Rad52 causes non-canonical homologous recombination leading to gross chromosomal rearrangements (GCRs). Here we find that fission yeast Srr1/Ber1 and Skb1/PRMT5 promote GCRs at centromeres. Genetic and physical analyses show that srr1 and skb1 mutations reduce isochromosome formation mediated by centromere inverted repeats. srr1 increases DNA damage sensitivity in rad51 cells but does not abolish checkpoint response, suggesting that Srr1 promotes Rad51-independent DNA repair. srr1 and rad52 additively, while skb1 and rad52 epistatically reduce GCRs. Unlike srr1 or rad52, skb1 does not increase damage sensitivity. Skb1 regulates cell morphology and cell cycle with Slf1 and Pom1, respectively, but neither Slf1 nor Pom1 causes GCRs. Mutating conserved residues in the arginine methyltransferase domain of Skb1 greatly reduces GCRs. These results suggest that, through arginine methylation, Skb1 forms aberrant DNA structures leading to Rad52-dependent GCRs. This study has uncovered roles for Srr1 and Skb1 in GCRs at centromeres.
Collapse
Affiliation(s)
- Piyusha Mongia
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Naoko Toyofuku
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Ziyi Pan
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Ran Xu
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Yakumo Kinoshita
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Keitaro Oki
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Hiroki Takahashi
- Medical Mycology Research Center, Chiba University, Chiba, 260-8673, Japan
| | - Yoshitoshi Ogura
- Division of Microbiology, Department of Infectious Medicine, Kurume University School of Medicine, Kurume, Fukuoka, 830-0011, Japan
| | - Tetsuya Hayashi
- Department of Bacteriology, Faculty of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
| |
Collapse
|
5
|
Nakagawa T, Miyamoto T, Miki S, Watanabe K, Aki T, Shidara H, Yamashita H. Preparation of egg-koji for developing a novel food. J Biosci Bioeng 2023; 135:447-450. [PMID: 36990903 DOI: 10.1016/j.jbiosc.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/12/2023] [Accepted: 03/08/2023] [Indexed: 03/29/2023]
Abstract
While chicken eggs contain many nutrients necessary for humans and there are various cooking methods, the nutritional components are used as they are, and there are no traditional foods that utilize microorganisms. Koji-mold, containing Aspergillus oryzae, A. sojae, and A. luchuensis, which has been used in various fermented foods since ancient times, grows on raw grain materials such as rice and barley to become koji. This can give flavors not found in the raw materials that can decompose and convert the nutritional components of the raw materials. Here, we succeeded for the first time in developing egg-koji that uses only eggs and koji-mold by selecting and combining cooked egg powder (CEP) and A. oryzae AO101 as the most suitable combination. To suppress the explosive growth of harmful bacteria, we improved the sterilization method, watering method, and amount of water. In addition, it was found that egg-koji has a characteristic enzyme activity balance, in which amylase is extremely low and protease at pH 6 was high compared to grain koji, such as rice and barley. Egg-koji might produce enzymes suitable for taking in nutrients when growing into CEP and would be expected to give a flavor that could not be achieved by cooking or additives.
Collapse
|
6
|
Kimura M, Yoshimura I, Yanagida K, Yoshida T, Hagiwara K, Kaneko T, Yamada Y, Nakagawa T. Evaluation of ejaculation function using a simple questionnaire. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Maekawa M, Maekawa T, Sasase T, Takagi K, Takeuchi S, Kitamoto M, Nakagawa T, Toyoda K, Konishi N, Ohta T, Yamada T. Pathophysiological Analysis of Uninephrectomized db/db Mice as a Model of Severe Diabetic Kidney Disease. Physiol Res 2022; 71:209-217. [DOI: 10.33549/physiolres.934784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Diabetic nephropathy, included in diabetic kidney disease (DKD), is the primary disease leading to end-stage renal disease (ESRD) or dialysis treatment, accounting for more than 40% of all patients with ESRD or receiving dialysis. Developing new therapeutics to prevent the transition to ESRD or dialysis treatment requires an understanding of the pathophysiology of DKD and an appropriate animal model for drug efficacy studies. In this study, we investigated the pathophysiology of diabetic kidney disease with type 2 diabetes in uninephrectomized db/db mice. In addition, the nephrectomized db/db mice from 10 weeks to 42 weeks were used to assess the efficacy of long-term administration of the angiotensin-II–receptor antagonist losartan. The blood and urinary biochemical parameters and the blood pressure which is a main pharmacological endpoint of the losartan therapy, were periodically measured. And at the end, histopathological analysis was performed. Uninephrectomized db/db mice clearly developed obesity and hyperglycemia from young age. Furthermore, they showed renal pathophysiological changes, such as increased urinary albumin-creatinine ratio (UACR) (the peak value 3104±986 in 40-week-old mice), glomerular hypertrophy and increased fibrotic areas in the tubulointerstitial tubules. The blood pressure in the losartan group was significantly low compared to the normotensive Vehicle group. However, as expected, Losartan suppressed the increase in UACR (829±500) indicating the medication was sufficient, but the histopathological abnormalities including tubular interstitial fibrosis did not improve. These results suggest that the uninephrectomized db/db mice are useful as an animal model of the severe DKD indicated by the comparison of the efficacy of losartan in this model with the efficacy of losartan in clinical practice.
Collapse
Affiliation(s)
| | - T Maekawa
- Biological/Pharmacological Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc., Osaka, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Wang S, Makinouchi A, Okamoto M, Kotaka T, Maeshima M, Ibe N, Nakagawa T. Viscoplastic Material Modeling for the Stretch Blow Molding Simulation. INT POLYM PROC 2022. [DOI: 10.1515/ipp-2000-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this paper, the viscoplastic material model of PET (polyethylene terephthalate), which is intended to be used in the FEM (finite element method) simulation of stretch blow molding process, has been studied. Material tests of PET were performed with the constant strain rates varying from 0.01 to 1 (1/s), at temperatures ranging from 90 to 150 °C, based on the obtained data a two-stage model was proposed. The proposed model could precisely take into account the effects of strain hardening, strain rate sensitivity, variation of the hardening index, and temperature dependency. This model has been implemented into the nonlinear finite element code PBLOW3D, which is developed in the Riken, and its performance in the stretch blow molding simulation has been studied. It has been demonstrated that the proposed material model provides significant improvements, compared with two existing material models, in the simulation of the blow molding process of PET bottles.
Collapse
Affiliation(s)
- S. Wang
- Materials Fabrication Laboratory, The Institute of Physical and Chemical Research , Riken, Waho-shi , Saitama , Japan
| | - A. Makinouchi
- Materials Fabrication Laboratory, The Institute of Physical and Chemical Research , Riken, Waho-shi , Saitama , Japan
| | - M. Okamoto
- Polymeric Materials Engineering, Toyota Technological Institute , Tokyo , Japan
| | - T. Kotaka
- Polymeric Materials Engineering, Toyota Technological Institute , Tokyo , Japan
| | - M. Maeshima
- Aoki Technical Laboratory, Inc. , Nagano-ken , Japan
| | - N. Ibe
- Aoki Technical Laboratory, Inc. , Nagano-ken , Japan
| | - T. Nakagawa
- Institute of Industrial Science, University of Tokyo , Tokyo , Japan
| |
Collapse
|
9
|
Munakata K, Miyashita H, Nakahara T, Shiba H, Sugahara K, Katakura A, Nakagawa T. The use of SPECT/CT to assess resorptive activity in mandibular condyles. Int J Oral Maxillofac Surg 2021; 51:942-948. [PMID: 34937677 DOI: 10.1016/j.ijom.2021.11.012] [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: 04/12/2021] [Revised: 08/30/2021] [Accepted: 11/26/2021] [Indexed: 12/20/2022]
Abstract
The aim of this study was to clarify the clinical significance of bone metabolism in the mandibular condyles in determining condylar resorptive changes. Twelve condyles of patients with idiopathic condylar resorption and degenerative joint disease were analysed using 99mTc HMDP SPECT/CT at baseline and subsequent computed tomography during the follow-up period. Twenty-two healthy condyles were enrolled as controls. After generating three-dimensional SPECT/CT images, two independent observers scored the degree of condylar uptake and measured the morphological changes in the condylar height and condylar volume. In the group with positive condylar uptake, the follow-up computed tomography showed significant decreases in condylar height (-1.69 ± 0.93 mm) and condylar volume (-12.51 ± 10.30%) when compared to healthy controls (condylar height, 0.09 ± 0.54 mm; condylar volume, -0.29 ± 4.22%) (P < 0.001). Moreover, the degree of uptake correlated with the changes in condylar height (observer 1, P = 0.012; observer 2, P = 0.039) and condylar volume (observer 1, P = 0.005; observer 2, P = 0.037). These results suggest that condylar bone metabolism is closely related to the resorptive activity. Thus, SPECT/CT would be useful in the prognostic evaluation or determination of treatment strategies for idiopathic condylar resorption and degenerative joint disease.
Collapse
Affiliation(s)
- K Munakata
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Miyashita
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.
| | - T Nakahara
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - H Shiba
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Sugahara
- Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - A Katakura
- Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - T Nakagawa
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
10
|
Maeda T, Hiura A, Uehara J, Toyoshima R, Nakagawa T, Yoshino K. Early tumor response assessment may avoid serious immune-related adverse events in nivolumab and ipilimumab combination therapy for stage IV melanoma. Br J Dermatol 2021; 186:587-588. [PMID: 34747503 DOI: 10.1111/bjd.20879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/16/2021] [Accepted: 11/07/2021] [Indexed: 11/28/2022]
Abstract
Nivolumab and ipilimumab combination therapy is one of the most promising treatments for patients with melanoma. However, this combination therapy is highly toxic and causes serious adverse events (SAEs) in more than half of the patients.
Collapse
Affiliation(s)
- T Maeda
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - A Hiura
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - J Uehara
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - R Toyoshima
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - T Nakagawa
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - K Yoshino
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| |
Collapse
|
11
|
Nakagawa T, Fukuhara T, Imai K, Igusa R, Yokota H, Watanabe K, Suzuki A, Morita M, Inoue A, Miura M, Minamiya Y, Maemondo M. FP05.05 A Prospective Observational Study of Osimertinib Using Plasma Concentrations in NSCLC With Acquired EGFR T790M Mutation. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
12
|
Clemens P, Connolly A, Harper A, Mah J, McDonald C, Rao V, Smith E, Zaidman C, Nakagawa T, Hoffman E. DMD - TREATMENT. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
13
|
Maeda T, Hiura A, Uehara J, Toyoshima R, Nakagawa T, Yoshino K. Combined carboplatin and paclitaxel therapy improves overall survival in patients with nivolumab-resistant acral and mucosal melanoma. Br J Dermatol 2021; 186:361-363. [PMID: 34510408 DOI: 10.1111/bjd.20758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/15/2021] [Accepted: 09/08/2021] [Indexed: 01/02/2023]
Affiliation(s)
- T Maeda
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - A Hiura
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - J Uehara
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - R Toyoshima
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - T Nakagawa
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - K Yoshino
- Department of Dermatologic Oncology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| |
Collapse
|
14
|
Takeuchi H, Matsumoto T, Morimoto K, Atsumi J, Yamamoto S, Nakagawa T, Yamada S, Kurosaki A, Shiraishi Y, Hasebe T. Pre-operative endovascular coil embolisation for chronic pulmonary aspergillosis. Int J Tuberc Lung Dis 2021; 25:725-731. [PMID: 34802494 DOI: 10.5588/ijtld.21.0028] [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] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE: To retrospectively evaluate the clinical outcomes of pre-operative endovascular coil embolisation (ECE) for chronic pulmonary aspergillosis (CPA).METHODS: We evaluated surgical patients with CPA between November 2016 and April 2020. Pre-operative ECE for CPA with severe adhesions was selectively performed to reduce intra-operative blood loss. ECE procedures, operative procedures, intra-operative blood loss and complications were evaluated.RESULTS: Twenty-eight patients (21 males and 7 females; median age: 55 years) were included in the study. Of the 28 patients, 8 (28.6%) underwent pre-operative ECE. Technical success rate in pre-operative ECE was 100%. The median time required for ECE procedures was 123 min. The median number of vessels embolised per procedure was 2.5. The median period between embolisation and surgery was 5 days. Major complications were observed in three patients (10.7%). There were no significant differences between patients with and without pre-operative ECE in operative time (284 vs. 365 min, respectively, P = 0.7602) and intra-operative blood loss (294 vs. 228 mL, respectively, P = 0.8987).CONCLUSIONS: Pre-operative ECE for CPA appears to be feasible and safe; however, its role in reducing intra-operative blood loss needs further investigation.
Collapse
Affiliation(s)
- H Takeuchi
- Department of Diagnostic Radiology, Fukujuji Hospital, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan
| | - T Matsumoto
- Kochi Medical School, Kochi University, Kochi, Japan, Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Tokyo, Japan
| | - K Morimoto
- Respiratory Disease Center, Fukujuji Hospital, JATA, Tokyo, Japan
| | - J Atsumi
- Respiratory Disease Center, Fukujuji Hospital, JATA, Tokyo, Japan
| | - S Yamamoto
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Tokyo, Japan
| | - T Nakagawa
- Department of General Thoracic Surgery, Tokai University Hachioji Hospital, Tokai University School of Medicine, Tokyo, Japan
| | - S Yamada
- Department of General Thoracic Surgery, Tokai University Hachioji Hospital, Tokai University School of Medicine, Tokyo, Japan
| | - A Kurosaki
- Department of Diagnostic Radiology, Fukujuji Hospital, Japan Anti-Tuberculosis Association (JATA), Tokyo, Japan
| | - Y Shiraishi
- Respiratory Disease Center, Fukujuji Hospital, JATA, Tokyo, Japan
| | - T Hasebe
- Department of Radiology, Tokai University Hachioji Hospital, Tokai University School of Medicine, Tokyo, Japan
| |
Collapse
|
15
|
Su J, Xu R, Mongia P, Toyofuku N, Nakagawa T. Fission yeast Rad8/HLTF facilitates Rad52-dependent chromosomal rearrangements through PCNA lysine 107 ubiquitination. PLoS Genet 2021; 17:e1009671. [PMID: 34292936 PMCID: PMC8297803 DOI: 10.1371/journal.pgen.1009671] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/18/2021] [Indexed: 11/19/2022] Open
Abstract
Gross chromosomal rearrangements (GCRs), including translocation, deletion, and inversion, can cause cell death and genetic diseases such as cancer in multicellular organisms. Rad51, a DNA strand exchange protein, suppresses GCRs by repairing spontaneous DNA damage through a conservative way of homologous recombination, gene conversion. On the other hand, Rad52 that catalyzes single-strand annealing (SSA) causes GCRs using homologous sequences. However, the detailed mechanism of Rad52-dependent GCRs remains unclear. Here, we provide genetic evidence that fission yeast Rad8/HLTF facilitates Rad52-dependent GCRs through the ubiquitination of lysine 107 (K107) of PCNA, a DNA sliding clamp. In rad51Δ cells, loss of Rad8 eliminated 75% of the isochromosomes resulting from centromere inverted repeat recombination, showing that Rad8 is essential for the formation of the majority of isochromosomes in rad51Δ cells. Rad8 HIRAN and RING finger mutations reduced GCRs, suggesting that Rad8 facilitates GCRs through 3’ DNA-end binding and ubiquitin ligase activity. Mms2 and Ubc4 but not Ubc13 ubiquitin-conjugating enzymes were required for GCRs. Consistent with this, mutating PCNA K107 rather than the well-studied PCNA K164 reduced GCRs. Rad8-dependent PCNA K107 ubiquitination facilitates Rad52-dependent GCRs, as PCNA K107R, rad8, and rad52 mutations epistatically reduced GCRs. In contrast to GCRs, PCNA K107R did not significantly change gene conversion rates, suggesting a specific role of PCNA K107 ubiquitination in GCRs. PCNA K107R enhanced temperature-sensitive growth defects of DNA ligase I cdc17-K42 mutant, implying that PCNA K107 ubiquitination occurs when Okazaki fragment maturation fails. Remarkably, K107 is located at the interface between PCNA subunits, and an interface mutation D150E bypassed the requirement of PCNA K107 and Rad8 ubiquitin ligase for GCRs. These data suggest that Rad8-dependent PCNA K107 ubiquitination facilitates Rad52-dependent GCRs by changing the PCNA clamp structure. Gross chromosomal rearrangements (GCRs), including translocation, can alter gene dosage and activity, resulting in genetic diseases such as cancer. However, GCRs can occur by some enzymes, including Rad52 recombinase, and result in chromosomal evolution. Therefore, GCRs are not only pathological but also physiological phenomena from an evolutionary point of view. However, the detailed mechanism of GCRs remains unclear. Here, using fission yeast, we show that the homolog of human HLTF, Rad8 causes GCRs through noncanonical ubiquitination of proliferating cellular nuclear antigen (PCNA) at a lysine 107 (K107). Rad51, a DNA strand exchange protein, suppresses the formation of isochromosomes whose arms mirror each another and chromosomal truncation. We found that, like Rad52, Rad8 is required for isochromosome formation but not chromosomal truncation in rad51Δ cells, showing a specific role of Rad8 in homology-mediated GCRs. Mutations in Rad8 ubiquitin E3 ligase RING finger domain, Mms2-Ubc4 ubiquitin-conjugating enzymes, and PCNA K107 reduced GCRs in rad51Δ cells, suggesting that Rad8-Mms2-Ubc4-dependent PCNA K107 ubiquitination facilitates GCRs. PCNA trimers form a DNA sliding clamp. The K107 residue is located at the PCNA-PCNA interface, and an interface mutation D150E restored GCRs in PCNA K107R mutant cells. This study provides genetic evidence that Rad8-dependent PCNA K107 ubiquitination facilitates GCRs by changing the PCNA clamp structure.
Collapse
Affiliation(s)
- Jie Su
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Ran Xu
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Piyusha Mongia
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Naoko Toyofuku
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
| | - Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, Toyonaka, Japan
- * E-mail:
| |
Collapse
|
16
|
Tanaka T, Mizuno T, Nakagawa T, Hayakawa T, Shimada M. Effects of H3 and H4 histones acetylation and bindings of CREB binding protein and p300 at the promoter on hepatic expression of gamma-glutamyltransferase gene in a streptozotocin-induced moderate hypoinsulinemic rat model. Physiol Res 2021; 70:475-480. [PMID: 33982587 DOI: 10.33549/physiolres.934620] [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] [Indexed: 11/25/2022] Open
Abstract
Gamma-glutamyltransferase (GGT), a marker of liver disease, has been shown to be associated with increased risk of diabetes and relative insulin secretion deficiency. However, the mechanism of hepatic Ggt regulation has not been explored fully. In this study, we made a concerted effort to understand the mechanism by investigating the effects of acetylation of histones H3 and H4, and bindings of histone acetyltransferases, CREB binding protein (CBP) and p300, at the Ggt promoter on the regulation of the expression of Ggt gene in the livers of streptozotocin (STZ)-induced moderate hypoinsulinemia rat model. The rats treated with STZ showed remarkably higher serum GGT level and hepatic Ggt/GGT expression than the untreated control rats. Furthermore, the acetylation of histones H3 and H4, and the binding of CBP not p300 at the Ggt promoter regions were significantly higher in the livers of STZ rats than those of the control rats. These results suggest that an enhanced hepatic expression of Ggt is associated with increased acetylation of histones H3 and H4 and CBP binding at the Ggt promoter in STZ-induced moderate hypoinsulinemic rats.
Collapse
Affiliation(s)
- T Tanaka
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan.
| | | | | | | | | |
Collapse
|
17
|
Saito R, Tsubata Y, Nakamura A, Yoshioka H, Morita M, Honda R, Kanaji N, Watanabe M, Jingu D, Nakagawa T, Nakazawa K, Mouri A, Takeuchi S, Furuya N, Akazawa Y, Miura K, Ichihara E, Kobayashi K, Morita S, Isobe T. P76.79 Osimertinib in Poor PS Patients with T790M-Positive Advanced NSCLC after Progression of EGFR TKI Treatments (NEJ032B). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Bekki N, Hayama H, Nagai R, Miyake W, Yamamoto J, Torii S, Kubota S, Nakagawa T, Okazaki T, Yamamoto M, Okazaki O, Hara H, Hiroi Y. Left atrial strain and outcome in heart failure with preserved ejection fraction. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Left atrial (LA) function is impaired in heart failure with preserved ejection fraction (HFpEF). However, the association between LA longitudinal strain and heart failure (HF) events in patients with HFpEF is still unknown. We evaluated whether LA strain measurements would be useful to predict hospitalizations for worsening HF in this study.
Methods
This study included 121 patients (Male 73, Female 48) with HFpEF who had echocardiogram at our institute (Age = 76 ± 14y, Left ventricular ejection fraction; LVEF = 63 ± 8%). Patients with atrial fibrillation were excluded. LA longitudinal strain was measured by speckle-tracking echocardiography, using TOMTEC imaging system. The endpoints were hospitalizations for worsening HF.
Results
During follow-up period of 319 ± 269 days, 33 patients (27%) experienced hospitalizations for worsening HF. LA strain was markedly lower in patients with HF events at 11.3 ± 5.6, whereas LA strain was higher at 20.3 ± 10.1 in patients without HF events. Kaplan-Meier analysis demonstrated a significant separation of survival curves stratified by median value of LA strain (Figure).
Conclusions
LA dysfunction in HFpEF is associated with a higher risk of HF hospitalization, and LA strain measurements would be useful to predict HF events.
Abstract Figure
Collapse
Affiliation(s)
- N Bekki
- National Center for Global Health and Medicine, Tokyo, Japan
| | - H Hayama
- National Center for Global Health and Medicine, Tokyo, Japan
| | - R Nagai
- National Center for Global Health and Medicine, Tokyo, Japan
| | - W Miyake
- National Center for Global Health and Medicine, Tokyo, Japan
| | - J Yamamoto
- National Center for Global Health and Medicine, Tokyo, Japan
| | - S Torii
- National Center for Global Health and Medicine, Tokyo, Japan
| | - S Kubota
- National Center for Global Health and Medicine, Tokyo, Japan
| | - T Nakagawa
- National Center for Global Health and Medicine, Tokyo, Japan
| | - T Okazaki
- National Center for Global Health and Medicine, Tokyo, Japan
| | - M Yamamoto
- National Center for Global Health and Medicine, Tokyo, Japan
| | - O Okazaki
- National Center for Global Health and Medicine, Tokyo, Japan
| | - H Hara
- National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Hiroi
- National Center for Global Health and Medicine, Tokyo, Japan
| |
Collapse
|
19
|
Shinada M, Saeki K, Yoshitake R, Eto S, Tsuboi M, Chambers JK, Uchida K, Kato D, Yoshimoto S, Kamoto S, Ikeda N, Kinoshita R, Fujita N, Nishimura R, Nakagawa T. Evaluation of epithelial and mesenchymal cell markers in canine urinary bladder transitional cell carcinoma. Vet J 2020; 266:105571. [PMID: 33323173 DOI: 10.1016/j.tvjl.2020.105571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 10/21/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023]
Abstract
Canine transitional cell carcinoma (cTCC) is the most common malignant tumour in the urinary bladder: it is highly invasive and exhibits metastatic characteristics. Inflammation is also strongly related to cTCC. Epithelial tumours often exhibit a mesenchymal cell phenotype during tumour invasion and metastasis owing to epithelial-mesenchymal transition (EMT), which is often induced in chronic inflammation. The aim of this retrospective study was to investigate the expression of epithelial and mesenchymal cell markers in tumour cells and to evaluate its relationship with prognosis of cTCC. In this study, 29 dogs with cTCC who underwent surgical treatment were enrolled. Clinical parameters were reviewed using medical records. Tissue expression of epithelial and mesenchymal markers was evaluated by immunohistochemical analysis. The association between the expression of mesenchymal cell markers and clinical parameters, including prognosis, was statistically examined. In five normal bladder tissues used as controls, no expression of mesenchymal markers was observed, except for one tissue that expressed fibronectin. Conversely, epithelial tumour cells expressed vimentin and fibronectin in 23/29 and 19/28 cTCC tissues, respectively. Regarding clinical parameters, vimentin score in Miniature Dachshunds was significantly higher than those in other dog breeds (P < 0.001). Multivariate survival analyses revealed that age>12 years was related to shorter progression-free survival (P = 0.02). Higher vimentin score, lower fibronectin score, and advanced clinical T stage were significantly correlated with shorter median survival time (P < 0.05). The results of this study indicate that vimentin expression was associated with cTCC progression. Further studies are needed to examine the incidence and relevance of EMT in cTCC.
Collapse
Affiliation(s)
- M Shinada
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Saeki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - R Yoshitake
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Eto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - M Tsuboi
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - J K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - K Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - D Kato
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Yoshimoto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - S Kamoto
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - N Ikeda
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - R Kinoshita
- Veterinary Medical Center, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - N Fujita
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - R Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - T Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|
20
|
Fujii Y, Sato Y, Suzuki H, Yoshizato T, Yoshida K, Shiraishi Y, Kawai T, Nakagawa T, Nishimatsu H, Okaneya T, Makishima H, Homma Y, Miyano S, Ogawa S, Kume H. Distinct molecular subtypes and a high diagnostic urinary biomarker of upper urinary tract urothelial carcinoma. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34078-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
21
|
Daiko H, Marafioti T, Fujiwara T, Shirakawa Y, Nakatsura T, Kato K, Puccio I, Hikichi T, Yoshimura S, Nakagawa T, Furukawa M, Stoeber K, Nagira M, Ide N, Kojima T. Exploratory open-label clinical study to determine the S-588410 cancer peptide vaccine-induced tumor-infiltrating lymphocytes and changes in the tumor microenvironment in esophageal cancer patients. Cancer Immunol Immunother 2020; 69:2247-2257. [PMID: 32500232 PMCID: PMC7568713 DOI: 10.1007/s00262-020-02619-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 02/27/2020] [Accepted: 05/20/2020] [Indexed: 12/24/2022]
Abstract
Cancer vaccines induce cancer-specific T-cells capable of eradicating cancer cells. The impact of cancer peptide vaccines (CPV) on the tumor microenvironment (TME) remains unclear. S-588410 is a CPV comprising five human leukocyte antigen (HLA)-A*24:02-restricted peptides derived from five cancer testis antigens, DEPDC1, MPHOSPH1, URLC10, CDCA1 and KOC1, which are overexpressed in esophageal cancer. This exploratory study investigated the immunologic mechanism of action of subcutaneous S-588410 emulsified with MONTANIDE ISA51VG adjuvant (median: 5 doses) by analyzing the expression of immune-related molecules, cytotoxic T-lymphocyte (CTL) response and T-lymphocytes bearing peptide-specific T-cell receptor (TCR) sequencing in tumor tissue or blood samples from 15 participants with HLA-A*24:02-positive esophageal cancer. Densities of CD8+, CD8+ Granzyme B+, CD8+ programmed death-1-positive (PD-1+) and programmed death-ligand 1-positive (PD-L1+) cells were higher in post- versus pre-vaccination tumor tissue. CTL response was induced in all patients for at least one of five peptides. The same sequences of peptide-specific TCRs were identified in post-vaccination T-lymphocytes derived from both tumor tissue and blood, suggesting that functional peptide-specific CTLs infiltrate tumor tissue after vaccination. Twelve (80%) participants had treatment-related adverse events (AEs). Injection site reaction was the most frequently reported AE (grade 1, n = 1; grade 2, n = 11). In conclusion, S-588410 induces a tumor immune response in esophageal cancer. Induction of CD8+ PD-1+ tumor-infiltrating lymphocytes and PD-L1 expression in the TME by vaccination suggests S-588410 in combination with anti-PD-(L)1 antibodies may offer a clinically useful therapy.Trial registration UMIN-CTR registration identifier: UMIN000023324.
Collapse
Affiliation(s)
- H Daiko
- Esophageal Surgery Division, National Cancer Center Hospital, 5-1-1, Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - T Marafioti
- Department of Cellular Pathology, University College London Hospital, London, UK
| | - T Fujiwara
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Shirakawa
- Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - T Nakatsura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - K Kato
- Gastrointestinal Medical Oncology Division, National Cancer Center Hospital, Tokyo, Japan
| | - I Puccio
- Department of Cellular Pathology, University College London Hospital, London, UK
| | - T Hikichi
- R&D Department, Cancer Precision Medicine, Inc., Kawasaki, Japan
| | - S Yoshimura
- R&D Department, Cancer Precision Medicine, Inc., Kawasaki, Japan
| | - T Nakagawa
- Drug Discovery and Disease Research Laboratory, Shionogi & Co., Ltd., Toyonaka, Japan
| | - M Furukawa
- Biostatistics Department, Shionogi & Co., Ltd., Osaka, Japan
| | - K Stoeber
- Business Development, Shionogi & Co., Ltd., London, UK
| | - M Nagira
- Drug Discovery and Disease Research Laboratory, Shionogi & Co., Ltd., Toyonaka, Japan
| | - N Ide
- Project Management Department, Shionogi & Co., Ltd., Osaka, Japan
| | - T Kojima
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| |
Collapse
|
22
|
Yamashita K, Ogihara T, Hayashi M, Nakagawa T, Ishizaki Y, Kume M, Yano I, Niigata R, Hiraoka J, Yasui H, Nakamura T. Association between dexamethasone treatment and alterations in serum concentrations of trace metals. Pharmazie 2020; 75:218-222. [PMID: 32393433 DOI: 10.1691/ph.2020.0341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Previously, a significant elevation in the serum levels of iron (Fe) was observed within a few days after the initiation of cisplatin (CDDP)-based chemotherapy. To clarify the underlying mechanisms, the serum concentration of hepcidin, a negative regulator of Fe release, was determined in the clinical samples obtained from six patients with cancer. The result showed that the serum concentration of hepcidin in patients receiving CDDP-based chemotherapy was significantly increased after 4-6 days of treatment, in comparison to the baseline level, suggesting that aforementioned excessive systemic Fe was not explained by the change of serum hepcidin level. All these patients received antiemetic premedication. We next evaluated of the effects of Pt-containing drugs and prophylactic antiemetic dexamethasone medication on the serum concentration of trace metals in mice, and on the hepatic and renal concentration of trace metals. The serum concentrations of Fe, Cu, and Zn in the CDDP-treated and oxaliplatin-treated mice were not significantly altered in comparison to those of the vehicle-treated control group. The serum concentrations of Fe, Cu, and Zn were increased after 24 h of dexamethasone treatment, compared to those of the control group (P < 0.05). The hepatic concentration of Mn was significantly reduced, whereas those of Fe and Cu inclined to diminish. The present findings suggest that dexamethasone can partly contribute to the changes in the serum concentrations of trace metals during anticancer chemotherapy.
Collapse
Affiliation(s)
- K Yamashita
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - T Ogihara
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - M Hayashi
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - T Nakagawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Y Ishizaki
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Japan
| | - M Kume
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - I Yano
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - R Niigata
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
| | - J Hiraoka
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
| | - H Yasui
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
| | - T Nakamura
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Takatsuki, Japan;,
| |
Collapse
|
23
|
Cho J, Nakagawa T, Martin P, Gondo Y, Poon LW, Hirose N. Caregiving centenarians: Cross-national comparison in Caregiver-Burden between the United States and Japan. Aging Ment Health 2020; 24:774-783. [PMID: 30596257 PMCID: PMC6599484 DOI: 10.1080/13607863.2018.1544221] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Background and Objectives: The personal distress associated with caring for a family member has been well documented; however, questions about the burden of caregiving for centenarians and cross-national differences in the caregiving context, remain unanswered.Research Design and Methods: This study includes reports by caregivers of 538 near-centenarians and centenarians in the U.S. and Japan: 234 from the Georgia Centenarian Study and 304 from the Tokyo Centenarian Study. Basic descriptive and multivariate regression analyses were conducted. Mean levels of caregiver burden and near-centenarian and centenarians' characteristics (as predictors) for caregiver burden were compared between the U.S. and Japan. The near-centenarian and centenarians' functional capacity and personality were assessed as predictors.Results: Differential predictive patterns in caregiver burden were found in the two groups. In the U.S., near-centenarian and centenarians' agreeableness and conscientiousness were negatively associated with caregiver burden; whereas the near-centenarian and centenarians' neuroticism and number of diseases were positively associated with caregiver burden. In Japan, the near-centenarian and centenarians' activities of daily living, openness, and agreeableness were negatively associated with caregiving burden. Interaction effects between functional capacity and personality, on caregiver burden were observed only in the U.S. In the U.S., higher levels of agreeableness and openness significantly changed the level of caregiver burden associated with vision problems and a greater number of diseases.Discussion and Implications: Cross-national comparative predictors of caregiving burden between the two countries emphasized that caring for centenarians should be understood in the caregiving context, as well as the social context.
Collapse
Affiliation(s)
- J. Cho
- Center for Applied Health Research, Baylor Scott & White Health, Temple, Texas,Texas A&M Health Science Center School of Public Health, College Station, Texas
| | - T. Nakagawa
- University Priority Research Program “Dynamics of Healthy Aging,” University of Zurich, Switzerland,JSPS Postdoctoral Fellow for Research Abroad
| | - P. Martin
- Department of Human Development and Family Studies, Iowa State University, Ames, Iowa
| | - Y. Gondo
- Graduate School of Human Sciences, Osaka University, Osaka, Japan
| | - L. W. Poon
- Institute of Gerontology, University of Georgia, Athens, Georgia
| | - N. Hirose
- Center for Supercentenarian Research, School of Medicine, Keio University, Tokyo, Japan
| |
Collapse
|
24
|
Onaka AT, Su J, Katahira Y, Tang C, Zafar F, Aoki K, Kagawa W, Niki H, Iwasaki H, Nakagawa T. DNA replication machinery prevents Rad52-dependent single-strand annealing that leads to gross chromosomal rearrangements at centromeres. Commun Biol 2020; 3:202. [PMID: 32355220 PMCID: PMC7193609 DOI: 10.1038/s42003-020-0934-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 10/15/2019] [Accepted: 04/09/2020] [Indexed: 12/27/2022] Open
Abstract
Homologous recombination between repetitive sequences can lead to gross chromosomal rearrangements (GCRs). At fission yeast centromeres, Rad51-dependent conservative recombination predominantly occurs between inverted repeats, thereby suppressing formation of isochromosomes whose arms are mirror images. However, it is unclear how GCRs occur in the absence of Rad51 and how GCRs are prevented at centromeres. Here, we show that homology-mediated GCRs occur through Rad52-dependent single-strand annealing (SSA). The rad52-R45K mutation, which impairs SSA activity of Rad52 protein, dramatically reduces isochromosome formation in rad51 deletion cells. A ring-like complex Msh2-Msh3 and a structure-specific endonuclease Mus81 function in the Rad52-dependent GCR pathway. Remarkably, mutations in replication fork components, including DNA polymerase α and Swi1/Tof1/Timeless, change the balance between Rad51-dependent recombination and Rad52-dependent SSA at centromeres, increasing Rad52-dependent SSA that forms isochromosomes. Our results uncover a role of DNA replication machinery in the recombination pathway choice that prevents Rad52-dependent GCRs at centromeres.
Collapse
Affiliation(s)
- Atsushi T Onaka
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Chitose Laboratory Corporation, 2-13-3 Nogawa-honcho, Miyamae-ku, Kawasaki, Kanagawa, 216-0041, Japan
| | - Jie Su
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Yasuhiro Katahira
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Crystal Tang
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Faria Zafar
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Keita Aoki
- Microbial Physiology Laboratory, Department of Gene Function and Phenomics, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Wataru Kagawa
- Department of Chemistry, Graduate School of Science and Engineering, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo, 191-8506, Japan
| | - Hironori Niki
- Microbial Physiology Laboratory, Department of Gene Function and Phenomics, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Hiroshi Iwasaki
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan.,Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
| |
Collapse
|
25
|
Johnson RJ, Stenvinkel P, Andrews P, Sánchez-Lozada LG, Nakagawa T, Gaucher E, Andres-Hernando A, Rodriguez-Iturbe B, Jimenez CR, Garcia G, Kang DH, Tolan DR, Lanaspa MA. Fructose metabolism as a common evolutionary pathway of survival associated with climate change, food shortage and droughts. J Intern Med 2020; 287:252-262. [PMID: 31621967 PMCID: PMC10917390 DOI: 10.1111/joim.12993] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 09/16/2019] [Indexed: 12/12/2022]
Abstract
Mass extinctions occur frequently in natural history. While studies of animals that became extinct can be informative, it is the survivors that provide clues for mechanisms of adaptation when conditions are adverse. Here, we describe a survival pathway used by many species as a means for providing adequate fuel and water, while also providing protection from a decrease in oxygen availability. Fructose, whether supplied in the diet (primarily fruits and honey), or endogenously (via activation of the polyol pathway), preferentially shifts the organism towards the storing of fuel (fat, glycogen) that can be used to provide energy and water at a later date. Fructose causes sodium retention and raises blood pressure and likely helped survival in the setting of dehydration or salt deprivation. By shifting energy production from the mitochondria to glycolysis, fructose reduced oxygen demands to aid survival in situations where oxygen availability is low. The actions of fructose are driven in part by vasopressin and the generation of uric acid. Twice in history, mutations occurred during periods of mass extinction that enhanced the activity of fructose to generate fat, with the first being a mutation in vitamin C metabolism during the Cretaceous-Paleogene extinction (65 million years ago) and the second being a mutation in uricase that occurred during the Middle Miocene disruption (12-14 million years ago). Today, the excessive intake of fructose due to the availability of refined sugar and high-fructose corn syrup is driving 'burden of life style' diseases, including obesity, diabetes and high blood pressure.
Collapse
Affiliation(s)
- R J Johnson
- From the, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - P Stenvinkel
- Division of Renal Diseases, Karolinska Institute, Stockholm, Sweden
| | - P Andrews
- Museum of Natural History, London, UK
| | | | - T Nakagawa
- Department of Nephrology, Rakuwakai Otowa Hospital, Kyoto, Japan
| | - E Gaucher
- Department of Biology, Georgia State University, Atlanta, GA, USA
| | - A Andres-Hernando
- From the, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - C R Jimenez
- From the, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - G Garcia
- From the, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - D-H Kang
- Division of Renal Diseases, Ewha University, Seoul, Korea
| | - D R Tolan
- Department of Biology, Boston University, Boson, MA, USA
| | - M A Lanaspa
- From the, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| |
Collapse
|
26
|
Uchiyama A, Nagatomo T, Higurashi Y, Ohnishi J, Komiyama M, Kumagai K, Fujimaki M, Yamauchi H, Tamura M, Kaneko K, Fukunishi N, Nakagawa T. Control system for the new RIKEN 28-GHz superconducting electron cyclotron resonance ion source for SRILAC. Rev Sci Instrum 2020; 91:025101. [PMID: 32113460 DOI: 10.1063/1.5129632] [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] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/11/2020] [Indexed: 06/10/2023]
Abstract
A new RIKEN 28-GHz superconducting electron cyclotron resonance ion source (SC-ECRIS) has been installed for the superconducting RIKEN linear accelerator (SRILAC). The new SC-ECRIS control system mainly consists of programmable logic controllers (PLCs) embedded with the Experimental Physics and Industrial Control System. To improve the reliability as compared with previous control systems, two types of PLC central processing units, sequential and Linux, have been installed in the same unit. Past experience has shown that new types of designs that can rapidly respond to system scalability are key. By connecting PLC stations using star-topology field buses, their rapid and cost-effective response to system changes is realized for the new devices. Furthermore, a unique data acquisition system employing a 920-MHz-band radio was developed to measure analog data such as the temperature at the high-voltage stage.
Collapse
Affiliation(s)
- A Uchiyama
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Nagatomo
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Higurashi
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Ohnishi
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Komiyama
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - K Kumagai
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Fujimaki
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Yamauchi
- SHI Accelerator Service, Ltd., 1-17-6 Osaki, Shinagawa, Tokyo 141-0032, Japan
| | - M Tamura
- SHI Accelerator Service, Ltd., 1-17-6 Osaki, Shinagawa, Tokyo 141-0032, Japan
| | - K Kaneko
- SHI Accelerator Service, Ltd., 1-17-6 Osaki, Shinagawa, Tokyo 141-0032, Japan
| | - N Fukunishi
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Nakagawa
- Nishina Center for Accelerator Based Science, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| |
Collapse
|
27
|
Taguchi S, Nakagawa T, Fukuhara H. Inconsistencies in currently used definitions of sarcopenia in oncology. Ann Oncol 2020; 31:318-319. [DOI: 10.1016/j.annonc.2019.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 10/18/2019] [Indexed: 11/16/2022] Open
|
28
|
Nagatomo T, Higurashi Y, Ohnishi J, Uchiyama A, Fujimaki M, Kumagai K, Fukunishi N, Sakamoto N, Nakagawa T, Kamigaito O. High intensity vanadium beam for synthesis of new superheavy elements with well-controlled emittance by using "slit triplet". Rev Sci Instrum 2020; 91:023318. [PMID: 32113411 DOI: 10.1063/1.5130431] [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] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/12/2020] [Indexed: 06/10/2023]
Abstract
To provide a very powerful vanadium (V) beam with an intensity of at least 6 particle μA for synthesizing a new superheavy element (SHE) with atomic number Z = 119, we have developed a high-temperature oven (HTO) system to evaporate the metallic V powder inside the new superconducting (SC) electron cyclotron ion source. We successfully extracted a V13+ beam with a maximum beam intensity of 600 eμA with 2.8-kW microwave power and 900-W heating power of the HTO. Furthermore, from a systematic study of the dependence of the beam intensity on the microwave power and the HTO power, we successfully produced a V13+ beam of 300 eμA at a consumption rate of 3 mg/h, allowing a one-month duration continuous beam to carry out the SHE synthesis. In addition, to avoid serious damage to newly introduced SC acceleration cavities by beam losses, the beam should be transported with a well-controlled emittance. To efficiently limit the beam emittance, we employed a slit triplet consisting of three pairs of slits installed around the focus point of the low-energy beam transport. The first result of the emittance reduction was observed by a pepper-pot type emittance meter as a function of the acceptance of the slit triplet.
Collapse
Affiliation(s)
- T Nagatomo
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Higurashi
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Ohnishi
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - A Uchiyama
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Fujimaki
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - K Kumagai
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - N Fukunishi
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - N Sakamoto
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Nakagawa
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - O Kamigaito
- Accelerator Group, RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| |
Collapse
|
29
|
Ichigo Y, Takeshita A, Hibino M, Nakagawa T, Hayakawa T, Patel D, Field CJ, Shimada M. High-Fructose Diet-Induced Hypertriglyceridemia Is Associated With Enhanced Hepatic Expression of ACAT2 in Rats. Physiol Res 2019; 68:1021-1026. [PMID: 31647302 DOI: 10.33549/physiolres.934226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
High levels of fructose induce hypertriglyceridemia, characterized by excessive levels of triglyceride-rich lipoproteins such as very low-density lipoprotein (VLDL); however, the underlying mechanisms are poorly understood. The aim of this short communication was to examine hepatic changes in the expression of genes related to cholesterol metabolism in rats with hypertriglyceridemia induced by high-fructose or high-glucose diets. Rats were fed a 65 % (w/w) glucose diet or a 65 % (w/w) fructose diet for 12 days. Serum levels of triglycerides, total cholesterol, and VLDL+LDL-cholesterol, hepatic levels of triglycerides and cholesterol, and ACAT2 expression at the gene and protein levels were significantly higher in the fructose diet group compared to the glucose diet group. The hepatic levels of Abcg5/8 were lower in the fructose group than in the glucose group. Serum high-density lipoprotein (HDL)-cholesterol and hepatic expression levels of Hmgcr, Ldlr, Acat1, Mttp, Apob, and Cyp7a1 did not differ significantly between groups. These findings suggest that high-fructose diet-induced hypertriglyceridemia is associated with increased hepatic ACAT2 expression.
Collapse
Affiliation(s)
- Y Ichigo
- Department of Applied Life Science, Faculty of Applied Biological Sciences, Gifu University, Yanagido, Gifu, Japan,
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Morita M, Nakamura A, Tanaka H, Saito R, Inoue S, Harada T, Yamada T, Nakagawa T, Jingu D, Sugawara S. Phase II study of low-dose afatinib maintenance treatment for patients with EGFR-mutated non-small cell lung cancer (NJLCG1601). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
31
|
Kojima T, Marafioti T, Fujiwara T, Shirakawa Y, Nakatsura T, Kato K, Puccio I, Hikichi T, Yoshimura S, Nakagawa T, Furukawa M, Stoeber K, Nagira M, Ide N, Daiko H. Induction of tumour-infiltrating functional CD8 positive cells and PD-L1 expression in esophageal cancer by S-588410. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
32
|
Sato Y, Nakagawa T, Tanahashi T, Kitamura S, Miyamoto H, Okamoto K, Muguruma N, Takayama T. JMJD2A is a novel epigenetic factor of chemotherapeutic susceptibility in gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
33
|
Tanaka H, Miyauchi E, Nakamura A, Harada T, Nakagawa T, Morita M, Jingu D, Tomoya K, Gamou S, Saito R, Inoue A. EP1.01-04 Phase I/II Trial of Biweekly Nab-Paclitaxel in Patients with Previously Treated Advanced Non-Small Cell Lung Cancer: NJLCG1402. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
34
|
Endo S, Imano M, Furukawa H, Yokokawa M, Nishimura Y, Shinkai M, Yasuda T, Nakagawa T, Adachi S, Lee S, Goto M, Kii T, Uchiyama K, Kawakami H, Shimokawa T, Sakai D, Kurokawa Y, Satoh T. Phase II study of preoperative radiotherapy combined with S-1 plus cisplatin in clinically resectable type 4 or large type 3 gastric cancer: OGSG1205. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
35
|
Urata R, Ikeda K, Nakagawa T, Hoshino A, Honda S, Yagi N, Emoto N, Matoba S. P4500Cellular senescence of endothelial cells impairs angiogenesis by altering energy metabolism through p53-tigar axis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Ischemic disease is prevalent in elderly population due to impaired angiogenesis. Endothelial cell (EC) generates energy largely via glycolysis, which is further activated when angiogenesis actively occurs. PFK-1 is one of the most important regulatory enzymes for glycolysis, which is activated by PFKFB3. On the other hand, TIGAR inhibits PFK-1 under the control of p53. Crucial roles of PFKFB3 in EC functions under physiological and pathological conditions have been reported; however, a role of TIGAR in EC angiogenic functions remains to be elucidated. Furthermore, it remains unknown whether and how cellular senescence affect the energy metabolism in EC.
Purpose
The purpose of this study is to investigate molecular mechanisms underlying EC dysfunction associated with ageing, especially by focusing on endothelial energy metabolism.
Method and result
Senescent EC showed reduced glucose consumption assessed by [U-13C]-glucose tracer assay in association with increased expression of p53 and TIGAR. Angiogenic capacity assessed by tube-formation assay was reduced in senescent EC. Of note, either silencing of TIGAR by siRNA or lentivirus-mediated overexpression of PFKFB3 improved angiogenic capacity in senescent EC. These results collectively suggest that senescence impairs glycolysis in EC by activating p53-TIGAR axis, which leads to senescence-associated endothelial dysfunction. To analyze an impact of EC senescence in angiogenesis in vivo, we generated EC-specific progeroid mice in which dominant negative form of telomere repeat-binding factor 2 (TRF2) was overexpressed in EC under the control of the TIE2 promoter. After confirming EC-specific senescence in these endothelial progeroid mice, we generated hind-limb ischemia model. Recovery of blood flow assessed by laser doppler velocimeter was significantly impaired in endothelial progeroid mice, indicating that EC senescence is directly and causally implicated in age-related angiogenic dysfunction. Of note, genetic inactivation of TIGAR completely rescued the impaired ischemia-induced neovessel formation in EC-specific progeroid mice.
Conclusion
Using unique endothelial progeroid mice, we revealed that EC senescence is a bona fide risk for ischemic disease, largely by reducing glycolysis in EC through p53-TIGAR axis. Our data suggest that endothelial energy metabolism is an attracting therapeutic target for the prevention and/or treatment of ischemic diseases, especially in elderly population.
Collapse
Affiliation(s)
- R Urata
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Ikeda
- Kobe Pharmaceutical University, Laboratory of Clinical Pharmaceutical Science, Kobe, Japan
| | - T Nakagawa
- University of Toyama, Department of Metabolism and Nutrition, Toyama, Japan
| | - A Hoshino
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Honda
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Yagi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Emoto
- Kobe Pharmaceutical University, Laboratory of Clinical Pharmaceutical Science, Kobe, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| |
Collapse
|
36
|
Tada H, Nakagawa T, Okada H, Nakahashi T, Mori M, Sakata K, Kawashiri M, Takamura M. P1535Clinical impact of carotid plaque score rather than carotid intima-media thickness on atherosclerotic cardiovascular disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0297] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Carotid intima-media thickness (cIMT) assessed by ultrasound has been widely accepted as a surrogate marker of atherosclerotic cardiovascular disease. On the other hand, carotid plaque score (cPS) reflecting throughout the carotid artery plaque burden may be better marker.
Methods
We retrospectively examined 2,035 patients who underwent carotid ultrasonography between January 2006 and December 2015 at our University Hospital. Median follow-up period was 4 years. We used Cox models that adjusted for established risk factors of ASCVD, including age, gender, hypertension, diabetes, smoking, and serum lipids to assess the association of cIMT as well as cPS with major adverse cardiac events (MACE). MACE was defined as all-cause mortality or rehospitalization for a cardiovascular-related illness
Results
During follow-up, 243 participants experienced MACE. After adjustment for established risk factors, cPS was associated with MACE (hazard ratio [HR] = 3.38 for top quintile vs. bottom quintile of cPS; 95% confidence interval [CI] 1.82 to 6.27; P-trend = 1.4×10–8), while cIMT was not (HR = 0.88, P=0.57). Addition of the cPS to established risk factors significantly improved risk discrimination (C-index 0.726 vs. 0.746; P=0.017)
Conclusion
As a marker, cPS, rather than cIMT can identify 20% of individuals who are at more than three-fold increased risk for MACE. Targeting diagnostic or therapeutic interventions to this subset may prove clinically useful.
Collapse
Affiliation(s)
- H Tada
- Kanazawa University, Kanazawa, Japan
| | | | - H Okada
- Kanazawa University, Kanazawa, Japan
| | | | - M Mori
- Kanazawa University, Kanazawa, Japan
| | - K Sakata
- Kanazawa University, Kanazawa, Japan
| | | | | |
Collapse
|
37
|
Tomita A, Mochizuki H, Tsuboi M, Ogura I, Igarashi H, Goto-Koshino Y, Takahashi M, Ohmi A, Tomiyasu H, Ohno K, Nakagawa T, Uchida K, Nishimura R, Tsujimoto H. Development of canine X-chromosome inactivation pattern analysis for the detection of cell clonality by incorporating the examination of the SLIT and NTRK-like family member 4 (SLITRK4) gene. Res Vet Sci 2019; 125:170-175. [PMID: 31247472 DOI: 10.1016/j.rvsc.2019.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 10/27/2018] [Revised: 06/09/2019] [Accepted: 06/10/2019] [Indexed: 01/10/2023]
Abstract
X-chromosome inactivation pattern (XCIP) analysis can be used to assess the clonality of cell populations of various origin by distinguishing the methylated X chromosome from the unmethylated X chromosome. In this study, the utility of XCIP analysis was improved by incorporating the examination of AC dinucleotide repeats in SLIT and NTRK-like family member 4 (SLITRK4) gene into the previously reported CAG repeat examination of androgen receptor (AR) gene in dogs. The rate of heterozygosity when both genes were analysed (125/150, 83.3%) was higher than AR gene examination alone (86/150, 57.3%). Blood samples from heterozygous dogs in either AC-1 or AC-2 of SLITRK4 gene were examined for the corrected inactivation allele ratio (CIAR), resulting in the determination of a reference range of CIAR <3.8 in non-neoplastic cell/tissue samples. Using this analytical method, 49% (21/43) of neoplastic tissue samples from dogs showed a CIAR >3.8, indicating the presence of a clonal population. Through the present study, the availability of canine XCIP analysis was improved by incorporating the examination of the SLITRK4 gene, providing a highly useful laboratory examination system for the detection of the clonality of various cell/tissue samples in dogs.
Collapse
Affiliation(s)
- A Tomita
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - H Mochizuki
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA
| | - M Tsuboi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - I Ogura
- KOJIMA Animal Hospital, KOJIMA Co., Ltd., 3-60-21 Kameido, Koto-ku, Tokyo 136-8510, Japan
| | - H Igarashi
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Y Goto-Koshino
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - M Takahashi
- Laboratory of Small Animal Internal Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima-shi, Kagoshima 890-0065, Japan
| | - A Ohmi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - H Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Ohno
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - T Nakagawa
- Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - K Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - R Nishimura
- Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - H Tsujimoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
| |
Collapse
|
38
|
Sekiyama K, Yamada S, Nakagawa T, Nakayama Y, Kajiwara T. Partially Filled Flow Simulation Using Meshfree Method for High Viscosity Fluid in Plastic Mixer. INT POLYM PROC 2019. [DOI: 10.3139/217.3727] [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] [Indexed: 11/20/2022]
Abstract
Abstract
A novel simulation technique for the flow in plastic mixers based on Element-free Galerkin Method (EFGM) has been developed in this study. To improve the simulation accuracy, a “rearrangement” scheme has been employed which eliminates errors caused by the irregular distribution of data points. Through several numerical tests, the new simulation technique has been validated to be applicable to high viscosity fluid flow with enough accuracy. Furthermore, simulation examples for realistic mixers were carried out using the developed technique. From the results, it was found that the developed technique is capable to investigate the relationship between flow behavior inside realistic mixers and operating conditions.
Collapse
Affiliation(s)
- K. Sekiyama
- Mechanical Engineering Research Laboratory , Kobe Steel, Ltd., Hyogo , Japan
- Department of Chemical Engineering , Faculty of Engineering, Kyushu University, Fukuoka , Japan
| | - S. Yamada
- Mechanical Engineering Research Laboratory , Kobe Steel, Ltd., Hyogo , Japan
| | - T. Nakagawa
- Mechanical Engineering Research Laboratory , Kobe Steel, Ltd., Hyogo , Japan
| | - Y. Nakayama
- Department of Chemical Engineering , Faculty of Engineering, Kyushu University, Fukuoka , Japan
| | - T. Kajiwara
- Department of Chemical Engineering , Faculty of Engineering, Kyushu University, Fukuoka , Japan
| |
Collapse
|
39
|
Nakagawa T, Okita AK. Transcriptional silencing of centromere repeats by heterochromatin safeguards chromosome integrity. Curr Genet 2019; 65:1089-1098. [PMID: 30997531 DOI: 10.1007/s00294-019-00975-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 04/04/2019] [Revised: 04/11/2019] [Accepted: 04/13/2019] [Indexed: 12/25/2022]
Abstract
The centromere region of chromosomes consists of repetitive DNA sequences, and is, therefore, one of the fragile sites of chromosomes in many eukaryotes. In the core region, the histone H3 variant CENP-A forms centromere-specific nucleosomes that are required for kinetochore formation. In the pericentromeric region, histone H3 is methylated at lysine 9 (H3K9) and heterochromatin is formed. The transcription of pericentromeric repeats by RNA polymerase II is strictly repressed by heterochromatin. However, the role of the transcriptional silencing of the pericentromeric repeats remains largely unclear. Here, we focus on the chromosomal rearrangements that occur at the repetitive centromeres, and highlight our recent studies showing that transcriptional silencing by heterochromatin suppresses gross chromosomal rearrangements (GCRs) at centromeres in fission yeast. Inactivation of the Clr4 methyltransferase, which is essential for the H3K9 methylation, increased GCRs with breakpoints located in centromeric repeats. However, mutations in RNA polymerase II or the transcription factor Tfs1/TFIIS, which promotes restart of RNA polymerase II following its backtracking, reduced the GCRs that occur in the absence of Clr4, demonstrating that heterochromatin suppresses GCRs by repressing the Tfs1-dependent transcription. We also discuss how the transcriptional restart gives rise to chromosomal rearrangements at centromeres.
Collapse
Affiliation(s)
- Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
| | - Akiko K Okita
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| |
Collapse
|
40
|
Okita AK, Zafar F, Su J, Weerasekara D, Kajitani T, Takahashi TS, Kimura H, Murakami Y, Masukata H, Nakagawa T. Heterochromatin suppresses gross chromosomal rearrangements at centromeres by repressing Tfs1/TFIIS-dependent transcription. Commun Biol 2019; 2:17. [PMID: 30652128 PMCID: PMC6329695 DOI: 10.1038/s42003-018-0251-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 05/10/2018] [Accepted: 12/05/2018] [Indexed: 12/20/2022] Open
Abstract
Heterochromatin, characterized by histone H3 lysine 9 (H3K9) methylation, assembles on repetitive regions including centromeres. Although centromeric heterochromatin is important for correct segregation of chromosomes, its exact role in maintaining centromere integrity remains elusive. Here, we found in fission yeast that heterochromatin suppresses gross chromosomal rearrangements (GCRs) at centromeres. Mutations in Clr4/Suv39 methyltransferase increased the formation of isochromosomes, whose breakpoints were located in centromere repeats. H3K9A and H3K9R mutations also increased GCRs, suggesting that Clr4 suppresses centromeric GCRs via H3K9 methylation. HP1 homologs Swi6 and Chp2 and the RNAi component Chp1 were the chromodomain proteins essential for full suppression of GCRs. Remarkably, mutations in RNA polymerase II (RNAPII) or Tfs1/TFIIS, the transcription factor that facilitates restart of RNAPII after backtracking, specifically bypassed the requirement of Clr4 for suppressing GCRs. These results demonstrate that heterochromatin suppresses GCRs by repressing Tfs1-dependent transcription of centromere repeats.
Collapse
Affiliation(s)
- Akiko K. Okita
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
| | - Faria Zafar
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
| | - Jie Su
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
| | - Dayalini Weerasekara
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
| | - Takuya Kajitani
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810 Japan
- Present Address: Department of Molecular Biology and Genetics, Cornell University, 526 Campus Road, Ithaca, NY 14853 USA
| | - Tatsuro S. Takahashi
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
- Present Address: Department of Biology, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan
| | - Hiroshi Kimura
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503 Japan
| | - Yota Murakami
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810 Japan
| | - Hisao Masukata
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
| | - Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043 Japan
| |
Collapse
|
41
|
Nakagawa T, Hülür G. SOCIAL INTEGRATION AND TERMINAL DECLINE IN WELL-BEING AMONG JAPANESE OLDER ADULTS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Nakagawa
- University of Zurich, Zurich, Zurich, Switzerl
| | - G Hülür
- University of Zurich, Zurich, Switzerland
| |
Collapse
|
42
|
Nakagawa T, Cho J, Yeung D. SUCCESSFUL AGING IN EAST ASIA: A COMPARISON OF CHINA, KOREA, AND JAPAN. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - J Cho
- Baylor Scott & White Health, Temple, TX, USA
| | - D Yeung
- City University of Hong Kong
| |
Collapse
|
43
|
Imai K, Nakagawa T, Matsuzaki I, Orino K, Saito H, Sato K, Sano M, Sato Y, Motoyama S, Shibata H, Minamiya Y. P3.01-42 Phase II Trial Allowed Surgery After Induction Chemotherapy of CBDCA+PTX, Bevacizumab in Patients with Stages IIIA-IV Nonsquamous NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
44
|
Ogawa S, Kido S, Handa T, Ogawa H, Asakawa H, Takahashi TS, Nakagawa T, Hiraoka Y, Masukata H. Shelterin promotes tethering of late replication origins to telomeres for replication-timing control. EMBO J 2018; 37:embj.201898997. [PMID: 29997179 DOI: 10.15252/embj.201898997] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 01/10/2018] [Revised: 05/19/2018] [Accepted: 06/19/2018] [Indexed: 12/12/2022] Open
Abstract
DNA replication initiates at many discrete loci on eukaryotic chromosomes, and individual replication origins are regulated under a spatiotemporal program. However, the underlying mechanisms of this regulation remain largely unknown. In the fission yeast Schizosaccharomyces pombe, the telomere-binding protein Taz1, ortholog of human TRF1/TRF2, regulates a subset of late replication origins by binding to the telomere-like sequence near the origins. Here, we showed using a lacO/LacI-GFP system that Taz1-dependent late origins were predominantly localized at the nuclear periphery throughout interphase, and were localized adjacent to the telomeres in the G1/S phase. The peripheral localization that depended on the nuclear membrane protein Bqt4 was not necessary for telomeric association and replication-timing control of the replication origins. Interestingly, the shelterin components Rap1 and Poz1 were required for replication-timing control and telomeric association of Taz1-dependent late origins, and this requirement was bypassed by a minishelterin Tpz1-Taz1 fusion protein. Our results suggest that Taz1 suppresses replication initiation through shelterin-mediated telomeric association of the origins at the onset of S phase.
Collapse
Affiliation(s)
- Shiho Ogawa
- Graduate School of Science, Osaka University, Toyonaka Osaka, Japan
| | - Sayuri Kido
- Graduate School of Science, Osaka University, Toyonaka Osaka, Japan
| | - Tetsuya Handa
- Graduate School of Science, Osaka University, Toyonaka Osaka, Japan
| | - Hidesato Ogawa
- Graduate School of Frontier Biosciences, Osaka University, Suita Osaka, Japan
| | - Haruhiko Asakawa
- Graduate School of Frontier Biosciences, Osaka University, Suita Osaka, Japan
| | | | - Takuro Nakagawa
- Graduate School of Science, Osaka University, Toyonaka Osaka, Japan
| | - Yasushi Hiraoka
- Graduate School of Frontier Biosciences, Osaka University, Suita Osaka, Japan
| | - Hisao Masukata
- Graduate School of Science, Osaka University, Toyonaka Osaka, Japan .,Graduate School of Frontier Biosciences, Osaka University, Suita Osaka, Japan
| |
Collapse
|
45
|
Kimura M, Sasaki K, Endo K, Kanatani A, Yamada Y, Miyazaki H, Nakagawa T. 659 An antidepressant effect of Tadalafil 5mg once daily in male LUTS and ED. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
46
|
Kuwahara K, Endo M, Nanri A, Kashino I, Nishiura C, Hori A, Kinugawa C, Nakagawa T, Honda T, Yamamoto S, Imai T, Nishihara A, Uehara A, Yamamoto M, Miyamoto T, Sasaki N, Ogasawara T, Tomita K, Nagahama S, Kochi T, Eguchi M, Okazaki H, Murakami T, Shimizu M, Kabe I, Mizoue T, Dohi S. 1221 Changes in body mass index before and after long-term sick leave due to cancer among workers: j-ecoh study. Occup Med (Lond) 2018. [DOI: 10.1136/oemed-2018-icohabstracts.1089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
47
|
Ouchi T, Morikawa S, Shibata S, Takahashi M, Yoshikawa M, Soma T, Miyashita H, Muraoka W, Kameyama K, Kawana H, Arima Y, Saya H, Okano H, Nakagawa T, Asoda S. Recurrent Spindle Cell Carcinoma Shows Features of Mesenchymal Stem Cells. J Dent Res 2018; 97:779-786. [PMID: 29494307 DOI: 10.1177/0022034518759278] [Citation(s) in RCA: 2] [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] [Indexed: 11/17/2022] Open
Abstract
This study investigated a case of spindle cell carcinoma (SpCC) in tongue pathological lesions. The patient experienced a local recurrence and distant metastasis after surgical intervention. Although standard chemotherapy was administered, a granulomatous mass continued to develop. This aggressive growth led to survival of the tumor. Secondary debulking surgery was performed to improve the patient's quality of life at the request of the patient. Using a tissue sample derived from the secondary debulking surgery, we performed an analysis of the tumor's cell surface antigens, differentiation potential, metastatic ability, and inhibition potential by anticancer reagents. In vitro analysis revealed that the cell population grown under adherent culture conditions expressed the mesenchymal stem cell (MSC) markers CD73, CD90, and CD105. The cell line established from this SpCC contained colony-forming unit fibroblasts (CFU-Fs) and exhibited multipotent differentiation into several mesenchymal lineages, including bone, cartilage, and fat. The SpCC cells also displayed vigorous mobilization. These characteristics suggested that they had the differentiation potential of mesenchymal cells, especially MSCs, rather than that of epithelial cells. The surgical specimen analyzed in this study resisted the molecular target reagent cetuximab, which is an epidermal growth factor receptor inhibitor. This clinical insight revealed that chemotherapy-resistant SpCC cells have different characteristics compared to most other cancer cells, which are sensitive to cetuximab. Our cell death assay revealed that SpCC cell death was induced by the anticancer drug imatinib, which is known to inhibit protein tyrosine kinase activity of ABL, platelet-derived growth factor receptor α (PDGFRα), and KIT. Here, we report recurrent SpCC with characteristics of MSCs and potential for treatment with imatinib.
Collapse
Affiliation(s)
- T Ouchi
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.,2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - S Morikawa
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.,2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - S Shibata
- 2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - M Takahashi
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - M Yoshikawa
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.,3 Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - T Soma
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Miyashita
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - W Muraoka
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Kameyama
- 4 Division of Diagnostic Pathology, Keio University School of Medicine, Tokyo, Japan
| | - H Kawana
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Y Arima
- 3 Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - H Saya
- 3 Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - H Okano
- 2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - T Nakagawa
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - S Asoda
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
48
|
Zafar F, Okita AK, Onaka AT, Su J, Katahira Y, Nakayama JI, Takahashi TS, Masukata H, Nakagawa T. Regulation of mitotic recombination between DNA repeats in centromeres. Nucleic Acids Res 2018; 46:1562. [PMID: 29346669 PMCID: PMC5815014 DOI: 10.1093/nar/gkx1310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Faria Zafar
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Akiko K Okita
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Atsushi T Onaka
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Jie Su
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yasuhiro Katahira
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Jun-Ichi Nakayama
- Division of Chromatin Regulation, National Institute for Basic Biology, Nishigonaka 38, Myodaiji, Okazaki, Aichi 44-8585, Japan
| | - Tatsuro S Takahashi
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Hisao Masukata
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Takuro Nakagawa
- Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| |
Collapse
|
49
|
|
50
|
Hayashibara N, Nakagawa T. Resource management for raft consensus protocol. IJSSC 2018. [DOI: 10.1504/ijssc.2018.10015577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|