1
|
Dermentzaki G, Furlan M, Tanaka I, Leonardi T, Rinchetti P, Passos PMS, Bastos A, Ayala YM, Hanna JH, Przedborski S, Bonanomi D, Pelizzola M, Lotti F. Depletion of Mettl3 in cholinergic neurons causes adult-onset neuromuscular degeneration. Cell Rep 2024; 43:113999. [PMID: 38554281 DOI: 10.1016/j.celrep.2024.113999] [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: 05/01/2023] [Revised: 01/25/2024] [Accepted: 03/10/2024] [Indexed: 04/01/2024] Open
Abstract
Motor neuron (MN) demise is a hallmark of several neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS). Post-transcriptional gene regulation can control RNA's fate, and defects in RNA processing are critical determinants of MN degeneration. N6-methyladenosine (m6A) is a post-transcriptional RNA modification that controls diverse aspects of RNA metabolism. To assess the m6A requirement in MNs, we depleted the m6A methyltransferase-like 3 (METTL3) in cells and mice. METTL3 depletion in embryonic stem cell-derived MNs has profound and selective effects on survival and neurite outgrowth. Mice with cholinergic neuron-specific METTL3 depletion display a progressive decline in motor behavior, accompanied by MN loss and muscle denervation, culminating in paralysis and death. Reader proteins convey m6A effects, and their silencing phenocopies METTL3 depletion. Among the m6A targets, we identified transactive response DNA-binding protein 43 (TDP-43) and discovered that its expression is under epitranscriptomic control. Thus, impaired m6A signaling disrupts MN homeostasis and triggers neurodegeneration conceivably through TDP-43 deregulation.
Collapse
Affiliation(s)
- Georgia Dermentzaki
- Center for Motor Neuron Biology and Disease, Departments of Pathology & Cell Biology and Neurology, Columbia University, New York, NY, USA
| | - Mattia Furlan
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia, Milan, Italy
| | - Iris Tanaka
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia, Milan, Italy
| | - Tommaso Leonardi
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia, Milan, Italy
| | - Paola Rinchetti
- Center for Motor Neuron Biology and Disease, Departments of Pathology & Cell Biology and Neurology, Columbia University, New York, NY, USA
| | - Patricia M S Passos
- Department of Biochemistry & Molecular Biology, St. Louis University School of Medicine, St. Louis, Missouri, USA
| | - Alliny Bastos
- Department of Biochemistry & Molecular Biology, St. Louis University School of Medicine, St. Louis, Missouri, USA
| | - Yuna M Ayala
- Department of Biochemistry & Molecular Biology, St. Louis University School of Medicine, St. Louis, Missouri, USA
| | - Jacob H Hanna
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Serge Przedborski
- Center for Motor Neuron Biology and Disease, Departments of Pathology & Cell Biology and Neurology, Columbia University, New York, NY, USA; Department of Neuroscience, Columbia University, New York, NY, USA
| | - Dario Bonanomi
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Mattia Pelizzola
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia, Milan, Italy; Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Francesco Lotti
- Center for Motor Neuron Biology and Disease, Departments of Pathology & Cell Biology and Neurology, Columbia University, New York, NY, USA.
| |
Collapse
|
2
|
Yanagihara Y, Tanaka A, Nagayoshi M, Yamaguchi T, Tanaka I, Ohno M, Itakura A. P–611 Innovative controlled ovarian stimulation (COS) for polycystic ovary syndrome (PCOS) produces high-quality oocytes and no ovarian hyper stimulation syndrome (OHSS). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.610] [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: 11/13/2022] Open
Abstract
Abstract
Study question
How can we find an ovarian stimulation method that does not cause hyper stimulation syndrome but can produce a high pregnancy rate at one cycle?
Summary answer
This newly developed method for PCOS has a higher accumulative clinical outcome for one trial and no OHSS.
What is known already
Almost all conventional treatments for PCOS have managed to avoid OHSS by reducing the number of growing follicles, which are associated with high Estradiol levels and stimulate the production of vessel endothelial growth hormone (VEGF), leading to increased vessel permeability. Low dose FSH administration, In vitro maturation (IVM), Ovarian Drilling and Coasting have been performed to achieve this. However, their actual clinical outcome is still unsatisfactory.
Study design, size, duration
Evaluation of the efficiency of this method was conducted retrospectively at St. Mother Clinic. The embryonic development and the clinical outcome were studied for 34 PCOS patients during the period between November 2018 and December 2019.
Participants/materials, setting, methods
We started injections of FSH (150iu/ml), then we did ultrasound follicle monitoring. GnRH antagonist shots were started when the leading follicle reached 18mm and continued until the largest follicle was 22–24mm and the E2 value was over 4000pg/ml. Letrozole (2.5mg) and leuprorelin acetate (1.88mg) was injected as trigger. Two tablets each of Letrozole, Cabergoline and GnRH antagonist were given for 5 consecutive days after the oocyte retrieval. All embryos were cryopreserved.
Main results and the role of chance
Number of patients and cycles were 34 and 59. Average number of cryopreserved blastocysts was 6.12 (1–16). The frequencies of OHSS (mild, moderate, severe) were 29.4% (10/34), 0% (0/34), 0% (0/34). Average days between oocyte collection and withdrawal hemorrhage was 5.44(5–7). Cryopreservation rate was 100.0% (34/34). Clinical pregnancy rate and miscarriage rate was 42.3% (25/59) and 16.0% (4/25). The cumulative pregnancy rate was 73.7% (25/34). The four remaining unsuccessful cases still have 10,6,3 and 7 frozen embryos. So, there is a high possibility that they become successful, that would bring the cumulative pregnancy rate up to 82.3% (28/34).
Limitations, reasons for caution
This COS for PCOS seems promising, however it is premature to conclude that this method is established. This method requires caution monitoring for hormone level, follicle size and number and coagulant function. It also accompanied with the risk of ovarian hemorrhage on aspiration of a great number of oocytes.
Wider implications of the findings: This COS seems viable for PCOS cases. It could control the cohort of antral follicles with different doses of Letrozole to find the optimal COH method and it could become the first option for COS of PCOS.
Trial registration number
N/A
Collapse
Affiliation(s)
- Y Yanagihara
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - A Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - M Nagayoshi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - T Yamaguchi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - I Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - M Ohno
- Juntendo University School of Medicine, Department of Obstetrics and Gynecology, Bunkyo-ku, Japan
| | - A Itakura
- Juntendo University School of Medicine, Department of Obstetrics and Gynecology, Bunkyo-ku, Japan
| |
Collapse
|
3
|
Tanaka A, Yanagihara Y, Nagayoshi M, Yamaguchi T, Tanaka I, Itakura A. P–023 Innovative ultra-rapid vitrification method for five or fewer testicular spermatozoa from non-obstructive azoospermic men after microsurgical testicular sperm extraction (Micro-TESE). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.022] [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: 11/14/2022] Open
Abstract
Abstract
Study question
What technique can be used to successfully cryopreserve five or fewer testicular spermatozoa from non-obstructive azoospermic men?
Summary answer
This method for cryopreserving five or fewer spermatozoa from non-obstructive azoospermic men showed a recovery rate above 90% and a survival rate of about 70%.
What is known already
Clinical outcomes of ICSI when using only five or fewer testicular spermatozoa after cryopreservation have been unsuccessful and are considered to be inferior to those using testicular fresh spermatozoa from Micro-TESE. A possible cause of these poor results has been the lack of a successful freezing technique. In these cases, repeated Micro-TESE and simultaneous oocyte pick up has been the only available treatment.
Study design, size, duration
Evaluation of the efficiency of cryopreservation by modified permeable cryoprotectant-free vitrification method (HTF supplemented with 0.1M sucrose and 10% SPS) for five or fewer testicular spermatozoa from 113 non-obstructive azoospermic men using Micro-TESE was conducted retrospectively at St. Mother Clinic between 2011 and 2018.
Participants/materials, setting, methods
This study included 113 non-obstructive azoospermic men. Each motile spermatozoon was carefully aspirated tail first into the pipette, put into a 2-μl microdroplet media of the vitrification medium near the tip of the Cryotop (Kitazato Corporation, Tokyo, Japan) submerged in liquid nitrogen vapor for 2 min and then immediately plunged in liquid nitrogen. The vitrified spermatozoa were warmed by dipping them into a droplet media. Successfully recovered motile sperm were selected and used for ICSI.
Main results and the role of chance
Number of patients, transfer cycles and collected sperms were 113, 192 and 560. Mean age of patients and their wives were 32.0±3.7y and 28.4±5.8y. Clinical pregnancy rate, miscarriage rate, live birth rate and number of live offspring were 24.0% (46/192), 19.6% (9/46), 19.3% (37/192) and 37 (Male: Female = 17: 20). Sperm recovery rate and survival rate were 90.3% (506/560) and 70.4% (356/506). Fertilization rate and mean number of transferred embryos were 51.6% (99/192) and 1.73 (1–2). Mean gestational weeks and mean body weight at birth were 39.23±5.27w and 2852.31±314.28g. No congenital anomalies were observed in any of the babies.
Limitations, reasons for caution
The maximum number of spermatozoa to which this method can be applied successfully is about 10. When the number of aspirated spermatozoa is over 10, some of them change direction and reach the mineral oil, and once this happens, they cannot be expelled out of the pipette.
Wider implications of the findings: This technique is very useful for the cryopreservation of very small numbers of testicular spermatozoa (fewer than 10) in order to avoid or reduce Micro-TESE interventions.
Trial registration number
N/A
Collapse
Affiliation(s)
- A Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - Y Yanagihara
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - M Nagayoshi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - T Yamaguchi
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - I Tanaka
- Saint Mother Hospital, Department of Obstetrics and Gynecology, Kitakyushu, Japan
| | - A Itakura
- Juntendo University School of Medicine, Department of Obstetrics and Gynecology, Bunkyo-ku, Japan
| |
Collapse
|
4
|
Furlan M, Tanaka I, Leonardi T, de Pretis S, Pelizzola M. Direct RNA Sequencing for the Study of Synthesis, Processing, and Degradation of Modified Transcripts. Front Genet 2020; 11:394. [PMID: 32425981 PMCID: PMC7212349 DOI: 10.3389/fgene.2020.00394] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/30/2020] [Indexed: 01/24/2023] Open
Abstract
It has been known for a few decades that transcripts can be marked by dozens of different modifications. Yet, we are just at the beginning of charting these marks and understanding their functional impact. High-quality methods were developed for the profiling of some of these marks, and approaches to finely study their impact on specific phases of the RNA life-cycle are available, including RNA metabolic labeling. Thanks to these improvements, the most abundant marks, including N6-methyladenosine, are emerging as important determinants of the fate of marked RNAs. However, we still lack approaches to directly study how the set of marks for a given RNA molecule shape its fate. In this perspective, we first review current leading approaches in the field. Then, we propose an experimental and computational setup, based on direct RNA sequencing and mathematical modeling, to decipher the functional consequences of RNA modifications on the fate of individual RNA molecules and isoforms.
Collapse
Affiliation(s)
- Mattia Furlan
- Center for Genomic Science, Istituto Italiano di Tecnologia, Milan, Italy
- Department of Physics, National Institute of Nuclear Physics, University of Turin, Turin, Italy
| | - Iris Tanaka
- Center for Genomic Science, Istituto Italiano di Tecnologia, Milan, Italy
| | - Tommaso Leonardi
- Center for Genomic Science, Istituto Italiano di Tecnologia, Milan, Italy
| | - Stefano de Pretis
- Center for Genomic Science, Istituto Italiano di Tecnologia, Milan, Italy
| | - Mattia Pelizzola
- Center for Genomic Science, Istituto Italiano di Tecnologia, Milan, Italy
| |
Collapse
|
5
|
Tanaka I, Chakraborty A, Saulnier O, Benoit-Pilven C, Vacher S, Labiod D, Lam EWF, Bièche I, Delattre O, Pouzoulet F, Auboeuf D, Vagner S, Dutertre M. ZRANB2 and SYF2-mediated splicing programs converging on ECT2 are involved in breast cancer cell resistance to doxorubicin. Nucleic Acids Res 2020; 48:2676-2693. [PMID: 31943118 PMCID: PMC7049692 DOI: 10.1093/nar/gkz1213] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 02/22/2019] [Revised: 12/09/2019] [Accepted: 12/17/2019] [Indexed: 12/16/2022] Open
Abstract
Besides analyses of specific alternative splicing (AS) variants, little is known about AS regulatory pathways and programs involved in anticancer drug resistance. Doxorubicin is widely used in breast cancer chemotherapy. Here, we identified 1723 AS events and 41 splicing factors regulated in a breast cancer cell model of acquired resistance to doxorubicin. An RNAi screen on splicing factors identified the little studied ZRANB2 and SYF2, whose depletion partially reversed doxorubicin resistance. By RNAi and RNA-seq in resistant cells, we found that the AS programs controlled by ZRANB2 and SYF2 were enriched in resistance-associated AS events, and converged on the ECT2 splice variant including exon 5 (ECT2-Ex5+). Both ZRANB2 and SYF2 were found associated with ECT2 pre-messenger RNA, and ECT2-Ex5+ isoform depletion reduced doxorubicin resistance. Following doxorubicin treatment, resistant cells accumulated in S phase, which partially depended on ZRANB2, SYF2 and the ECT2-Ex5+ isoform. Finally, doxorubicin combination with an oligonucleotide inhibiting ECT2-Ex5 inclusion reduced doxorubicin-resistant tumor growth in mouse xenografts, and high ECT2-Ex5 inclusion levels were associated with bad prognosis in breast cancer treated with chemotherapy. Altogether, our data identify AS programs controlled by ZRANB2 and SYF2 and converging on ECT2, that participate to breast cancer cell resistance to doxorubicin.
Collapse
Affiliation(s)
- Iris Tanaka
- Institut Curie, PSL Research University, CNRS UMR 3348, F-91405 Orsay, France
- Paris Sud University, Paris-Saclay University, CNRS UMR 3348, F-91405 Orsay, France
- Equipe Labellisée Ligue Contre le Cancer
| | - Alina Chakraborty
- Institut Curie, PSL Research University, CNRS UMR 3348, F-91405 Orsay, France
- Paris Sud University, Paris-Saclay University, CNRS UMR 3348, F-91405 Orsay, France
- Equipe Labellisée Ligue Contre le Cancer
| | - Olivier Saulnier
- Institut Curie Research Center, SIREDO Oncology Center, Paris-Sciences-Lettres Research University, INSERM U830, Laboratory of Biology and Genetics of Cancers, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, France
| | | | - Sophie Vacher
- Unité de Pharmacogénomique, Service de génétique, Institut Curie, Paris, France; Université Paris Descartes, Paris, France
| | - Dalila Labiod
- Paris Sud University, Paris-Saclay University, CNRS UMR 3348, F-91405 Orsay, France
- Institut Curie, PSL Research University, Translational Research Department, Experimental Radiotherapy Platform, Orsay, France
| | | | - Ivan Bièche
- Unité de Pharmacogénomique, Service de génétique, Institut Curie, Paris, France; Université Paris Descartes, Paris, France
| | - Olivier Delattre
- Institut Curie Research Center, SIREDO Oncology Center, Paris-Sciences-Lettres Research University, INSERM U830, Laboratory of Biology and Genetics of Cancers, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, France
| | - Frédéric Pouzoulet
- Paris Sud University, Paris-Saclay University, CNRS UMR 3348, F-91405 Orsay, France
- Institut Curie, PSL Research University, Translational Research Department, Experimental Radiotherapy Platform, Orsay, France
| | - Didier Auboeuf
- CNRS UMR 5239, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Stéphan Vagner
- Institut Curie, PSL Research University, CNRS UMR 3348, F-91405 Orsay, France
- Paris Sud University, Paris-Saclay University, CNRS UMR 3348, F-91405 Orsay, France
- Equipe Labellisée Ligue Contre le Cancer
| | - Martin Dutertre
- Institut Curie, PSL Research University, CNRS UMR 3348, F-91405 Orsay, France
- Paris Sud University, Paris-Saclay University, CNRS UMR 3348, F-91405 Orsay, France
- Equipe Labellisée Ligue Contre le Cancer
| |
Collapse
|
6
|
Tamiya Y, Morise M, Matsuzawa R, Tanaka I, Okada T, Iwano S, Hase T, Hashimoto N, Sato M, Itoh Y, Hasegawa Y. P2.18-18 Impact of Combined Evaluation Using Tumor Volume and Metastatic Nodal Extent in Stage III NSCLC Treated with CRT. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1972] [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: 10/25/2022]
|
7
|
Shinkai S, Seino S, Tanaka I, Tomine Y, Nishi M, Yokoyama Y, Kitamura A. EATING ALONE AND FRAILTY AND MENTAL ILL-HEALTH AMONG JAPANESE OLDER ADULTS LIVING IN A METROPOLITAN AREA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.970] [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)
- S Shinkai
- Tokyo Metropolitan Institute of Gerontology
| | - S Seino
- Tokyo Metropolitan Institute of Gerontology
| | - I Tanaka
- Tokyo Metropolitan Institute of Gerontology
| | - Y Tomine
- Tokyo Metropolitan Institute of Gerontology
| | - M Nishi
- Tokyo Metropolitan Institute of Gerontology
| | - Y Yokoyama
- Tokyo Metropolitan Institute of Gerontology
| | - A Kitamura
- Tokyo Metropolitan Institute of Gerontology
| |
Collapse
|
8
|
Miyazawa A, Ito S, Asano S, Tanaka I, Sato M, Kondo M, Hasegawa Y. P1.03-18 Mechanobiology of Lung Cancer Cells: Regulation of PD-L1 Expression by Matrix Stiffness. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.699] [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: 10/28/2022]
|
9
|
Tanaka A, Nagayoshi M, Tanaka I, Yamaguchi T, Ichiyama T, Ohno M, Shimada M, Kawamura K. Successful drug-free IVA (in vitro activation) approach with laparoscopy to increase viable embryos in poor responder (POR) patients. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.913] [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: 10/28/2022]
|
10
|
Arouca R, Silva Neto MB, Chaves CM, Nagao M, Watauchi S, Tanaka I, ElMassalami M. Manifestation of hopping conductivity and granularity within phase diagrams of LaO 1-x F x BiS 2, Sr 1-x La x FBiS 2 and related BiS 2-based compounds. J Phys Condens Matter 2017; 29:355702. [PMID: 28758640 DOI: 10.1088/1361-648x/aa7c37] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Layered BiS [Formula: see text] -based series, such as LaO [Formula: see text] F [Formula: see text] BiS [Formula: see text] and Sr [Formula: see text] La [Formula: see text] FBiS [Formula: see text] , offer ideal examples for studying normal and superconducting phase diagram of a solid solution that evolves from a nonmagnetic band-insulator parent. We constructed typical [Formula: see text] phase diagrams of these systems based on events occurring in thermal evolution of their electrical resistivity, [Formula: see text]. Overall evolution of these diagrams can be rationalized in terms of (i) Mott-Efros-Shklovskii scenario which, within the semiconducting [Formula: see text] regime ([Formula: see text] metal-insulator transition), describes the doping influence on the thermally activated hopping conductivity. (ii) A granular metal (superconductor) scenario which, within [Formula: see text], describes the evolution of normal and superconducting properties in terms of conductance g, Coulomb charging energy E c and Josephson coupling J; their joint influence is usually captured within a [Formula: see text] phase diagram. Based on analysis of the granular character of [Formula: see text], we converted the [Formula: see text] diagrams into projected g - T diagrams which, being fundamental, allow a better understanding of evolution of various granular-related properties (in particular the hallmarks of normal-state [Formula: see text] feature and superconductor-insulator transition) and how such properties are influenced by x, pressure or heat treatment.
Collapse
Affiliation(s)
- R Arouca
- Instituto de Fisica, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, 21945-970 Rio de Janeiro, Brazil
| | | | | | | | | | | | | |
Collapse
|
11
|
Tanaka A, Nagayoshi M, Tanaka I, Yamaguchi T, Ichiyama T, Ohno M, Watanabe S. Does the extra X in Klinefelter Syndrome (KS) patients originate only paternally? Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.389] [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: 11/30/2022]
|
12
|
Tanaka A, Nagayoshi M, Tanaka I, Yamaguchi T, Ichiyama T, Ohno M, Watanabe S. Single human spermatozoon freezing technique for cryptozoospermia or non-obstructive azoospermia patients. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.521] [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]
|
13
|
Howell SJ, Simoes BM, Alferez D, Eyre R, Spence K, Santiago-Gomez A, Sarmiento-Castro A, Tanaka I, Howat D, Clarke RB. Abstract PD2-02: SFX-01 targets Wnt signalling to inhibit stem-like cells in breast cancer patient-derived xenograft tumours. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-pd2-02] [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: 11/16/2022]
Abstract
Abstract
Background: SFX-01 is a novel therapeutic comprising synthetic sulforaphane (SFN) stabilised within a-cyclodextrin. Breast cancer stem-like cells (CSCs) have been identified in all molecular subtypes and are likely drivers of breast cancer metastasis and treatment resistance. We recently established that CSC activity in ER+ BC, represent a source of therapeutic resistance (Simões et al, Cell Reports, 2015).
Material and methods: We investigated SFX-01 effects on breast CSC activity using mammosphere formation efficiency (MFE) and aldehyde dehydrogenase (ALDH) activity using the ALDEFLUOR assay in patient samples and patient-derived xenograft (PDX) tumours. Cells from primary (n=12) and metastatic (n=15) samples were treated with SFX-01 (5 μM) or vehicle control.Using a 2 or 8 week in vivo treatment, early (HBCx34) and metastatic (BB3RC31) ER+ PDX tumours were treated with SFX-01 (300mg/Kg/day) alone or in combination with tamoxifen (TAM, 10 mg/kg/day) or fulvestrant (FULV, 200 mg/kg/week). Tumours were dissociated and MFE and ALDH activity assessed.
Results: SFX-01 in vitro reduced MFE of both primary (0.19%±0.02 vs control 0.52%±0.06: p<0.001) and metastatic patient samples (0.43±0.04 vs control 0.93%±0.07: p<0.001). SFX-01 treatment in vivo for 2 weeks reduced MFE of HBCx34 (0.35%±0.03 vs control 0.64%±0.09; p<0.01) and BB3RC31 (0.78%±0.04 vs control 0.89%±0.06: p<0.05) and also ALDH activity of HBCx34 (3%±0.6 vs control 6.3%±0.4: p<0.01) and BB3RC31 (1%±0.2 vs control 3%±0.6: p<0.05). TAM and FULV increased MFE and ALDH activity after 2 weeks of treatment in vivo, which was abrogated by combination with SFX-01; for example HBCx34 MFE with TAM alone: 0.81%±0.07 vs TAM+SFX-01: 0.34%±0.02 (p<0.01) and ALDH+ with TAM alone 10%±0.4 vs TAM+SFX 4.2%±0.4 (p<0.01). TAM+SFX-01 suppressed tumour growth at 8 weeks vs TAM alone in HBCx34 but not BB3RC31. FULV treatment maintained tumour growth suppression at 8 weeks and no additive effect was seen with SFX-01, although MFE and ALDH activity were suppressed. Mechanistically, SFX-01 potently inhibited the canonical Wnt pathway in MCF-7 cells and their endocrine-resistant derivatives and we are currently exploring SFX-01 activity on other CSC regulatory pathways.
SFX-01 has been shown to be well tolerated in SAD and MAD studies in normal volunteers and clinical studies designed to test tolerability and efficacy in combination with the three major classes of endocrine therapy (AI, TAM and FULV) in advanced BC will begin in Q4 2016.
Conclusions: Our data demonstrate the potential of SFX-01 for clinically meaningful improvements to endocrine therapy in ER+ breast cancer by reversing CSC mediated resistance.
Citation Format: Howell SJ, Simoes BM, Alferez D, Eyre R, Spence K, Santiago-Gomez A, Sarmiento-Castro A, Tanaka I, Howat D, Clarke RB. SFX-01 targets Wnt signalling to inhibit stem-like cells in breast cancer patient-derived xenograft tumours [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr PD2-02.
Collapse
Affiliation(s)
- SJ Howell
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - BM Simoes
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - D Alferez
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - R Eyre
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - K Spence
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - A Santiago-Gomez
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - A Sarmiento-Castro
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - I Tanaka
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - D Howat
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| | - RB Clarke
- University of Manchester; The Christie NHS Foundation Trust; Evgen Pharma Ltd
| |
Collapse
|
14
|
Tanaka A, Nagayoshi M, Tanaka I, Miki T, Yamaguchi T. Successful treatments for Kartagener syndrome with completely immotile sperm or azoospermia. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.660] [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]
|
15
|
Tanaka A, Nagayoshi M, Tanaka I, Miki T, Yamaguchi T. Faster and more accurate improved rescue ICSI by observing changing size and position of chromosome and spindle using polarization microscope and differential contrast microscope. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.974] [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]
|
16
|
Simões B, Denis A, Eyre R, Spence K, Santiago-Gómez A, Sarmiento-Castro A, Tanaka I, Howat D, Howell S, Clarke R. Sulforadex targets breast cancer stem-like cells in patient-derived cells and xenograft tumours. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61269-8] [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]
|
17
|
Tanaka A, Nagayoshi M, Tanaka I, Ikuma S, Miki T, Yamaguchi T. Clinical outcomes of intrafallopian transfer of cryopreserved-thawed embryos in a natural menstrual cycle in older females. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.568] [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: 10/23/2022]
|
18
|
Tanaka A, Nagayoshi M, Tanaka I. Selection of an optimal controlled ovarian hyperstimulation method in relation to the number of antral follicles in patients less than 40 years old. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.756] [Citation(s) in RCA: 2] [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: 10/24/2022]
|
19
|
Tanaka A, Nagayoshi M, Tanaka I, Takemoto Y. Prediction of embryonic development and clinical outcome following ICSI according to the stages of nuclear maturation division. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.674] [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]
|
20
|
Kuda H, Ushikubo M, Ito H, Izumi K, Akiya K, Tamaki S, Tanaka I, Oshima H. OP0255 Clinical Characteristics of Infections in Connective Tissue Diseases (CTD); Association with Glucocorticoids (GC) and Glucose Intolerance. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2929] [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]
|
21
|
Ushikubo M, Kuda H, Ito H, Izumi K, Tamaki S, Akiya K, Tanaka I, Oshima H. SAT0481 Clinical Factors for Incident Vertebral Fractures Treated with Bisphosphonates in Glucocorticoid-Induced Osteoporosis. Who Needs to Use Other Anti-Osteoporotic Agents? Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4798] [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: 11/04/2022]
|
22
|
Tanaka I, Osada H, Fujii M, Fukatsu A, Hida T, Horio Y, Kondo Y, Sato A, Hasegawa Y, Tsujimura T, Sekido Y. LIM-domain protein AJUBA suppresses malignant mesothelioma cell proliferation via Hippo signaling cascade. Oncogene 2013; 34:73-83. [DOI: 10.1038/onc.2013.528] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 10/22/2013] [Accepted: 10/25/2013] [Indexed: 12/20/2022]
|
23
|
Tanaka A, Tanaka I, Nagayoshi M, Kusunoki H, Watanabe S. Clinical outcome of spinal cord injured patients with ejaculatory dysfunction. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1304] [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: 10/26/2022]
|
24
|
Tanaka A, Tanaka I, Nagayoshi M, Kusunoki H, Watanabe S. Rescue of aged oocytes using metaphase-II nuclear transfer with various kinds of fusion techniques. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1265] [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: 11/28/2022]
|
25
|
Tanaka A, Tanaka I, Nagayoshi M, Kusunoki H, Watanabe S. A comparison of a newly developed round spermatid injection (ROSI) and classical ROSI – reproductive health study on 51 newborn babies. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1758] [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]
|
26
|
Olovsson W, Weinhardt L, Fuchs O, Tanaka I, Puschnig P, Umbach E, Heske C, Draxl C. The Be K-edge in beryllium oxide and chalcogenides: soft x-ray absorption spectra from first-principles theory and experiment. J Phys Condens Matter 2013; 25:315501. [PMID: 23835492 DOI: 10.1088/0953-8984/25/31/315501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We have carried out a theoretical and experimental investigation of the beryllium K-edge soft x-ray absorption fine structure of beryllium compounds in the oxygen group, considering BeO, BeS, BeSe, and BeTe. Theoretical spectra are obtained ab initio, through many-body perturbation theory, by solving the Bethe-Salpeter equation (BSE), and by supercell calculations using the core-hole approximation. All calculations are performed with the full-potential linearized augmented plane-wave method. It is found that the two different theoretical approaches produce a similar fine structure, in good agreement with the experimental data. Using the BSE results, we interpret the spectra, distinguishing between bound core-excitons and higher energy excitations.
Collapse
Affiliation(s)
- W Olovsson
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden.
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Shirahata A, Fukutake K, Takamatsu J, Shima M, Hanabusa H, Mugishima H, Amano K, Takedani H, Tamashima S, Matsushita T, Tawa A, Tanaka I, Higasa S, Kosaka Y, Fujii T, Sakai M, Migita M, Kawakami K, Ohashi Y, Saito H. A Phase II clinical trial of a mixture of plasma-derived factor VIIa and factor X (MC710) in haemophilia patients with inhibitors: haemostatic efficacy, safety and pharmacokinetics/pharmacodynamics. Haemophilia 2013; 19:853-60. [DOI: 10.1111/hae.12205] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2013] [Indexed: 11/29/2022]
Affiliation(s)
- A. Shirahata
- Kitakyushu Yahata Higashi Hospital; Kitakyushu Fukuoka
| | - K. Fukutake
- Department of Laboratory Medicine; Tokyo Medical University; Tokyo
| | - J. Takamatsu
- Japanese Red Cross Aichi Blood Center; Seto Aichi
| | - M. Shima
- Department of Paediatrics; Nara Medical University; Kashihara Nara
| | - H. Hanabusa
- Department of Haematology; Ogikubo Hospital; Tokyo
| | - H. Mugishima
- Department of Paediatrics; Nihon University Itabashi Hospital; Tokyo
| | - K. Amano
- Department of Laboratory Medicine; Tokyo Medical University; Tokyo
| | - H. Takedani
- Department of Joint Surgery; Research Hospital of the Institute of Medical Science; The University of Tokyo; Tokyo
| | - S. Tamashima
- Department of Haematology and Oncology; Seirei Hamamatsu General Hospital; Hamamatsu Shizuoka
| | - T. Matsushita
- Department of Transfusion Medicine; Nagoya University Hospital; Nagoya
| | - A. Tawa
- Department of Paediatrics; National Hospital Organization Osaka National Hospital; Osaka
| | - I. Tanaka
- Department of Paediatrics; Nara Medical University; Kashihara Nara
| | - S. Higasa
- Division of Haematology; Department of Internal Medicine; Hyogo College of Medicine; Nishinomiya Hyogo
| | - Y. Kosaka
- Department of Haematology and Oncology; Kobe Children's Hospital; Kobe
| | - T. Fujii
- Division of the Blood Transfusion; Hiroshima University Hospital; Hiroshima
| | - M. Sakai
- Department of Paediatrics; University of Occupational and Environmental Health; Kitakyushu Fukuoka
| | - M. Migita
- Department of Paediatrics; Kumamoto Red Cross Hospital; Kumamoto
| | - K. Kawakami
- Department of Paediatrics; Kagoshima City Hospital; Kagoshima
| | - Y. Ohashi
- Department of Biostatistics; School of Public Health; The University of Tokyo; Tokyo
| | - H. Saito
- National Hospital Organization Nagoya Medical Center; Nagoya Japan
| |
Collapse
|
28
|
Lynch C, Tee N, Rouse H, Gordon A, Sati L, Zeiss C, Soygur B, Bassorgun I, Goksu E, Demir R, McGrath J, Groendahl ML, Thuesen L, Andersen AN, Loft A, Smitz J, Adriaenssens T, Vikesa J, Borup R, Mersy E, Kisters N, Macville MVE, Engelen JJM, Consortium SENN, Menheere PPCA, Geraedts JP, Coumans ABC, Frints SGM, Aledani T, Assou S, Traver S, Ait-ahmed O, Dechaud H, Hamamah S, Mizutani E, Suzumori N, Sugiyama C, Hattori Y, Sato T, Ando H, Ozaki Y, Sugiura-Ogasawara M, Wissing M, Kristensen SG, Andersen CY, Mikkelsen AL, Hoest T, Borup R, Groendahl ML, Velthut-Meikas A, Simm J, Metsis M, Salumets A, Palini S, Galluzzi L, De Stefani S, Primiterra M, Wells D, Magnani M, Bulletti C, Vogt PH, Frank-Herrmann P, Bender U, Strowitzki T, Besikoglu B, Heidemann P, Wunsch L, Bettendorf M, Jelinkova L, Vilimova S, Kosarova M, Sebek P, Volemanova E, Kruzelova M, Civisova J, Svobodova L, Sobotka V, Mardesic T, van de Werken C, Santos MA, Eleveld C, Laven JSE, Baart EB, Pylyp LY, Spinenko LA, Zukin VD, Perez-Sanz J, Matorras R, Arluzea J, Bilbao J, Gonzalez-Santiago N, Yeh N, Koff A, Barlas A, Romin Y, Manova-Todorova K, Hoz CDL, Mauri AL, Nascimento AM, Vagnini LD, Petersen CG, Ricci J, Massaro FC, Cavagna M, Pontes A, Oliveira JBA, Baruffi RLR, Franco JG, Wu EX, Ma S, Parriego M, Sole M, Boada M, Coroleu B, Veiga A, Kakourou G, Poulou M, Vrettou C, Destouni A, Traeger-Synodinos J, Kanavakis E, Yatsenko AN, Georgiadis AP, McGuire MM, Zorrilla M, Bunce KD, Peters D, Rajkovic A, Olszewska M, Kurpisz M, Gilbertson AZA, Ottolini CS, Summers MC, Sage K, Handyside AH, Thornhill AR, Griffin DK, Chung MK, Kim JW, Lee JH, Jeong HJ, Kim MH, Ryu MJ, Park SJ, Kang HY, Lee HS, Zimmermann B, Banjevic M, Hill M, Lacroute P, Dodd M, Sigurjonsson S, Lau P, Prosen D, Chopra N, Ryan A, Hall M, McAdoo S, Demko Z, Levy B, Rabinowitz M, Vereczeky A, Kosa ZS, Savay S, Csenki M, Nanassy L, Dudas B, Domotor ZS, Debreceni D, Rossi A, Alegretti JR, Cuzzi J, Bonavita M, Tanada M, Matunaga P, Fettback P, Rosa MB, Maia V, Hassun P, Motta ELA, Piccolomini M, Gomes C, Barros B, Nicoliello M, Matunaga P, Criscuolo T, Bonavita M, Alegretti JR, Miyadahira E, Cuzzi J, Hassun P, Motta ELA, Montjean D, Benkhalifa M, Berthaut I, Griveau JF, Morcel K, Bashamboo A, McElreavey K, Ravel C, Rubio C, Rodrigo L, Mateu E, Mercader A, Peinado V, Buendia P, Milan M, Delgado A, Al-Asmar N, Escrich L, Campos-Galindo I, Garcia-Herrero S, Poo ME, Mir P, Simon C, Reyes-Engel A, Cortes-Rodriguez M, Lendinez A, Perez-Nevot B, Palomares AR, Galdon MR, Ruberti A, Minasi MG, Biricik A, Colasante A, Zavaglia D, Iammarrone E, Fiorentino F, Greco E, Demir N, Ozturk S, Sozen B, Morales R, Lledo B, Ortiz JA, Ten J, Llacer J, Bernabeu R, Nagayoshi M, Tanaka A, Tanaka I, Kusunoki H, Watanabe S, Temel SG, Beyazyurek C, Ekmekci GC, Aybar F, Cinar C, Kahraman S, Nordqvist S, Karehed K, Akerud H, Ottolini CS, Griffin DK, Thornhill AR, Handyside AH, Gultomruk M, Tulay P, Findikli N, Yagmur E, Karlikaya G, Ulug U, Bahceci M, Bargallo MF, Arevalo MR, Salat MM, Barbat IV, Lopez JT, Algam ME, Boluda AB, de Oya GC, Tolmacheva EN, Kashevarova AA, Skryabin NA, Lebedev IN, Semaco E, Belo A, Riboldi M, Cuzzi J, Barros B, Luz L, Criscuolo T, Nobrega N, Matunaga P, Mazetto R, Alegretti JA, Bibancos M, Hassun P, Motta ELA, Serafini P, Neupane J, Vandewoestyne M, Heindryckx B, Deroo T, Lu Y, Ghimire S, Lierman S, Qian C, Deforce D, De Sutter P, Rodrigo L, Rubio C, Mateu E, Peinado V, Milan M, Viloria T, Al-Asmar N, Mercader A, Buendia P, Delgado A, Escrich L, Martinez-Jabaloyas JM, Simon C, Gil-Salom M, Capalbo A, Treff N, Cimadomo D, Tao X, Ferry K, Ubaldi FM, Rienzi L, Scott RT, Katzorke N, Strowitzki T, Vogt HP, Hehr A, Gassner C, Paulmann B, Kowalzyk Z, Klatt M, Krauss S, Seifert D, Seifert B, Hehr U, Minasi MG, Ruberti A, Biricik A, Lobascio M, Zavaglia D, Varricchio MT, Fiorentino F, Greco E, Rubino P, Bono S, Cotarelo RP, Spizzichino L, Biricik A, Colicchia A, Giannini P, Fiorentino F, Suhorutshenko M, Rosenstein-Tamm K, Simm J, Salumets A, Metsis M. Reproductive (epi)genetics. Hum Reprod 2013. [DOI: 10.1093/humrep/det220] [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
|
29
|
Asakura H, Nakahara Y, Nishio K, Araki Y, Salas-Huetos A, Blanco J, Anton E, Freour T, Com E, Barriere P, Masson D, Pineau C, Ferlin A, Patassini C, Garolla A, Bottacin A, Menegazzo M, Foresta C, Tanaka A, Nagayoshi M, Tanaka I. Session 68: The impact of genetics in andrology. Hum Reprod 2013. [DOI: 10.1093/humrep/det202] [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: 11/12/2022] Open
|
30
|
Machida H, Takeuchi H, Tanaka I, Fukui R, Shen Y, Ueno E, Suzuki S, Lin XZ. Improved delineation of arteries in the posterior fossa of the brain by model-based iterative reconstruction in volume-rendered 3D CT angiography. AJNR Am J Neuroradiol 2013; 34:971-5. [PMID: 23292530 DOI: 10.3174/ajnr.a3320] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Improved CTA delineation of arteries and unruptured aneurysms is clinically desired in the posterior fossa. We present a novel model-based iterative reconstruction that models system statistics and optics to improve CT image quality. We investigated the utility of MBIR for improving delineation of arteries in the posterior fossa on 3D brain CTA. MATERIALS AND METHODS Using filtered back-projection with a standard kernel and MBIR, we reconstructed axial images of 0.625-mm thickness of 28 consecutive patients (14 men; mean age, 58.6 ± 14.6 years) who underwent 64-detector brain CTA. We placed regions of interest on the axial images, measured the mean CT value in the basilar artery and the value and SD in the pons and bilateral cerebellar hemispheres, and calculated the contrast-to-noise ratio of the brain arteries in the posterior fossa. Using volume-rendered CTA and a 4-point scale, 2 radiologists independently graded delineation of the BA, bilateral vertebral artery, superior cerebellar artery, and anterior and posterior inferior cerebellar arteries. We compared the results between FBP and MBIR by using paired t and Wilcoxon signed-rank tests. RESULTS Compared with FBP, MBIR significantly improved the contrast-to-noise ratio (P < .0001) and subjective delineation of all arteries in the posterior fossa except the BA (VA, SCA, AICA, and PICA; P < .05 for all). The mean visual score by MBIR was 3.0 or higher for all those arteries except the AICA assessed by reader 1 (2.6 ± 0.7). CONCLUSIONS With 3D brain CTA, contrast-to-noise ratio and arterial delineation of the VA, SCA, AICA, and PICA in the posterior fossa are better with MBIR than FBP.
Collapse
Affiliation(s)
- H Machida
- Department of Radiology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Tanaka A, Nagayoshi M, Tanaka I. PGD or natural conception? what is recommended for couples with recurrent miscarriages caused by translocation chromosomal aberrations? Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.522] [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: 10/28/2022]
|
32
|
Nishimura M, Daino K, Takabatake T, Fukuda M, Tanaka I, Takabatake M, Imaoka T, Kakinuma S, Shimada Y. 725 Genome-wide Changes of Radiation-induced Mammary Carcinoma of (Sprague-Dawley & Copenhagen) F1 Hybrid Rats Overlapping With Those of Human Breast Cancers. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71366-7] [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: 10/28/2022]
|
33
|
Mizuno T, Murakami H, Fujii M, Ishiguro F, Tanaka I, Kondo Y, Akatsuka S, Toyokuni S, Yokoi K, Osada H, Sekido Y. YAP induces malignant mesothelioma cell proliferation by upregulating transcription of cell cycle-promoting genes. Oncogene 2012; 31:5117-22. [PMID: 22286761 DOI: 10.1038/onc.2012.5] [Citation(s) in RCA: 195] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Malignant mesothelioma (MM) shows frequent inactivation of the neurofibromatosis type 2 (NF2) -tumor-suppressor gene. Recent studies have documented that the Hippo signaling pathway, a downstream cascade of Merlin (a product of NF2), has a key role in organ size control and carcinogenesis by regulating cell proliferation and apoptosis. We previously reported that MMs show overexpression of Yes-associated protein (YAP) transcriptional coactivator, the main downstream effector of the Hippo signaling pathway, which results from the inactivation of NF2, LATS2 and/or SAV1 genes (the latter two encoding core components of the mammalian Hippo pathway) or amplification of YAP itself. However, the detailed roles of YAP remain unclear, especially the target genes of YAP that enhance MM cell growth and survival. Here, we demonstrated that YAP-knockdown inhibited cell motility, invasion and anchorage-independent growth as well as cell proliferation of MM cells in vitro. We analyzed genes commonly regulated by YAP in three MM cell lines with constitutive YAP-activation, and found that the major subsets of YAP-upregulating genes encode cell cycle regulators. Among them, YAP directly induced the transcription of CCND1 and FOXM1, in cooperation with TEAD transcription factor. We also found that knockdown of CCND1 and FOXM1 suppressed MM cell proliferation, although the inhibitory effects were less evident than those of YAP knockdown. These results indicate that constitutive YAP activation in MM cells promotes cell cycle progression giving more aggressive phenotypes to MM cells.
Collapse
Affiliation(s)
- T Mizuno
- Division of Molecular Oncology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Tanaka A, Nagayoshi M, Tanaka I, Kusunoki H. Differentiation of human round spermatids into motile spermatozoa through in vitro coculture with vero cells. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.231] [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: 10/17/2022]
|
35
|
Hosoya T, Nakamura T, Katagiri M, Ebine M, Birumachi A, Kusaka K, Tomoyori K, Yamada T, Yokoyama T, Ohhara T, Kurihara K, Niimura N, Tanaka I, Soyama K. Developments for upgrades of two-dimension scintillator detector system, data acquisition electronics and software for J-PARC. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311083486] [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: 11/11/2022] Open
|
36
|
Kawasaki A, Takano K, Takahashi M, Ohhara T, Ohshima K, Kusaka K, Tanaka I, Yamada T, Hosoya T, Kurihara K, Niimura N. Crystal structure of C 4H 8ONH 2-PbBr 3by neutron and X-ray diffraction experiments. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081578] [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: 11/10/2022] Open
|
37
|
Kusaka K, Yamada T, Hosoya T, Ohhara T, Kurihara K, Tomoyori K, Yokoyama T, Tanaka I, Niimura N. The first neutron structure analysis of protein with iBIX in J-PARC. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081463] [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: 11/10/2022] Open
|
38
|
Yao M, Zheng A, Tanaka I. Structure analysis of eukaryotic translation initiation factor complex 5B-1A. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311082511] [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: 11/10/2022] Open
|
39
|
Niimura N, Chatake T, Tanaka I, Kusaka K. Proton polarization technique for neutron protein crystallography (NPC). Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081529] [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: 11/11/2022] Open
|
40
|
|
41
|
Yokoyama T, Nabeshima Y, Hosoya T, Ohhara T, Kurihara K, Kusaka K, Mizuguchi M, Tanaka I, Niimura N. Preliminary neutron crystallographic study of mutant transthyretin. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092476] [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: 11/10/2022] Open
|
42
|
Kita S, Tanaka I, Yao M, Tanaka Y. Structural and functional analysis of rRNA methyltransferase from Staphylococcus aureus. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089069] [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: 11/10/2022] Open
|
43
|
Tanaka I, Kusaka K, Hosoya T, Kazuo K, Ohhara T, Yamada T, Tomoyori K, Yokoyama T, Niimura N. Overview of the Ibaraki Biological Crystal Diffractometer (iBIX) at J-PARC. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081517] [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: 11/10/2022] Open
|
44
|
Kleebe HJ, Cinibulk MK, Tanaka I, Bruley J, Cannon RM, Clarke DR, Hoffmann MJ, Rühle M. High-Resolution Electron Microscopy Observations of Grain-Boundary Films in Silicon Nitride Ceramics. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-287-65] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTCharacterization of silicon nitride ceramics by transmission electron microscopy (TEM) provides structural and compositional information on intergranular phases necessary to elucidate the factors that can influence the presence and thickness of grain-boundary films. Different TEM techniques can be used for the detection and determination of intergranular-film thickness, however, the most accurate results are obtained by high-resolution electron microscopy (HREM). HREM studies were applied, in conjunction with analytical electron microscopy, to investigate the correlation between intergranular-phase composition and film thickness. Statistical analyses of a number of grain-boundary films provided experimental verification of a theoretical equilibrium film thickness. Model experiments on a high-purity Si3N4 material, doped with low amounts of Ca, suggest the presence of two repulsive forces, a steric force and a force produced by an electrical double layer, that may act to balance the attractive van der Waals force necessary to establish an equilibrium film thickness.
Collapse
|
45
|
Suzuki T, Mori M, Matsunaga K, Tanaka I. Pourbaix diagrams of alkaline earth metal elements by combination of first principles calculations and thermochemical data. J Phys Condens Matter 2010; 22:384206. [PMID: 21386540 DOI: 10.1088/0953-8984/22/38/384206] [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] [Indexed: 05/30/2023]
Abstract
Based on first principles calculations for crystals and experimental thermochemical data for aqueous solutions and molecules, Pourbaix diagrams of alkaline earth metal systems at 298.15 K are constructed. Phonon frequencies are computed for all crystals of interests by the first principles method. Then individual contributions of zero-point energies and vibrational free energies are examined. The contribution of the zero-point energy is found to be 7-8% of the total formation free energy at 298.15 K in hydroxides, which can be ascribed to the presence of high frequency OH stretching modes. The agreements between computed and experimental Pourbaix diagrams are quite satisfactory.
Collapse
Affiliation(s)
- T Suzuki
- Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501, Japan. takehiro
| | | | | | | |
Collapse
|
46
|
Awata S, Tanaka A, Nagayoshi M, Sasaki M, Tanaka I. PGD or natural conception? what is recommended for couples with recurrent miscarriages caused by translocation chromosomal aberrations? Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.494] [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: 10/19/2022]
|
47
|
Nagayoshi M, Tanaka A, Awata S, Tanaka I, Kusunoki H, Watanabe S. When does chromosomal mosaicism occur throughout human embryonic development? Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.077] [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: 10/19/2022]
|
48
|
Kusunoki H, Tanaka A, Nagayoshi M, Awata S, Tanaka I, Watanabe S. Are craters on the surface of human sperm heads physiological changes during spermiogenesis? Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.964] [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: 10/19/2022]
|
49
|
Sasaki M, Tanaka A, Nagayoshi M, Awata S, Tanaka I. Risk level of intracytoplasmic spermatid injection for non-mosaic Klinefelter syndrome patients. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.212] [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: 10/19/2022]
|
50
|
Awata S, Tanaka A, Nagayoshi M, Sasaki M, Tanaka I. Selection of an optimal controlled ovarian hyperstimulation method in relation to the number of antral follicles in patients less than 40 years old. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|