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Nakagawa Y, Ushidome K, Masuda K, Igarashi K, Matsumoto Y, Yamasoba T, Anraku Y, Takai M, Cabral H. Multi-Armed Star-Shaped Block Copolymers of Poly(ethylene glycol)-Poly(furfuryl glycidol) as Long Circulating Nanocarriers. Polymers (Basel) 2023; 15:2626. [PMID: 37376272 DOI: 10.3390/polym15122626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Multi-arm star-shaped block copolymers with precisely tuned nano-architectures are promising candidates for drug delivery. Herein, we developed 4- and 6-arm star-shaped block copolymers consisting of poly(furfuryl glycidol) (PFG) as the core-forming segments and biocompatible poly(ethylene glycol) (PEG) as the shell-forming blocks. The polymerization degree of each block was controlled by adjusting the feeding ratio of a furfuryl glycidyl ether and ethylene oxide. The size of the series of block copolymers was found to be less than 10 nm in DMF. In water, the polymers showed sizes larger than 20 nm, which can be related to the association of the polymers. The star-shaped block copolymers effectively loaded maleimide-bearing model drugs in their core-forming segment with the Diels-Alder reaction. These drugs were rapidly released upon heating via a retro Diels-Alder step. When the star-shaped block copolymers were injected intravenously in mice, they showed prolonged blood circulation, with more than 80% of the injected dose remaining in the bloodstream at 6 h after intravenous injection. These results indicate the potential of the star-shaped PFG-PEG block copolymers as long-circulating nanocarriers.
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Affiliation(s)
- Yasuhiro Nakagawa
- Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kotaro Ushidome
- Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keita Masuda
- Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunori Igarashi
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yu Matsumoto
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yasutaka Anraku
- Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Madoka Takai
- Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Horacio Cabral
- Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Mutoh N, Kakiuchi I, Hiraku A, Iwabuchi N, Kiyosawa K, Igarashi K, Tanaka M, Nakamura M, Miyasaka M. Heat-killed Lactobacillus helveticus improves mood states: a randomised, double-blind, placebo-controlled study. Benef Microbes 2023; 14:109-118. [PMID: 37026368 DOI: 10.3920/bm2022.0048] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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] [Indexed: 04/08/2023]
Abstract
We investigated the effects of heat-killed Lactobacillus helveticus MCC1848 on daily mood states in healthy young adults. Participants (n=58) were randomised to receive heat-killed L. helveticus MCC1848 powder or placebo powder for 4 weeks. During the study period, adverse events were recorded in the participant diary. Mood states were assessed before and 2 and 4 weeks after initiation of the intervention. The primary outcomes were the shortened version of the Profile of Mood States 2 (POMS 2) scores. Secondary outcomes included other mood state (State-Trait Anxiety Inventory (STAI); visual analogue scale (VAS)), quality of life (acute form of the SF-36v2), sleep (Athens Insomnia Scale (AIS)) and fatigue (Chalder Fatigue Scale (CFS)) scores. Four weeks of heat-killed L. helveticus MCC1848 intake, compared to placebo, significantly improved the shortened version of the POMS 2 'friendliness' and the VAS 'relaxed' scores, which are two indicators of positive mood states. On the other hand, heat-killed L. helveticus MCC1848 intake had no significant effects on negative mood state items (e.g. anger, nervousness, confusion) assessed by the shortened version of the POMS 2, STAI and VAS. AIS and CFS scores also showed no significant differences. No adverse effects were observed with 4 weeks of heat-killed L. helveticus MCC1848 intake. These results suggest that daily consumption of heat-killed L. helveticus MCC1848 is safe and has the potential to improve positive mood states. UMIN Clinical Trial Registry: UMIN000043697.
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Affiliation(s)
- N Mutoh
- Food Ingredients & Technology Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, 2528583 Zama-city, Kanagawa, Japan
| | - I Kakiuchi
- Department of Nursing, Matsumoto Junior College, 3118, Sasaga, 399-0033, Matsumoto-city, Nagano, Japan
| | - A Hiraku
- Food Ingredients & Technology Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, 2528583 Zama-city, Kanagawa, Japan
| | - N Iwabuchi
- Food Ingredients & Technology Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, 2528583 Zama-city, Kanagawa, Japan
| | - K Kiyosawa
- Department of Nursing, Matsumoto Junior College, 3118, Sasaga, 399-0033, Matsumoto-city, Nagano, Japan
| | - K Igarashi
- Department of Nursing, Matsumoto Junior College, 3118, Sasaga, 399-0033, Matsumoto-city, Nagano, Japan
| | - M Tanaka
- Food Ingredients & Technology Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, 2528583 Zama-city, Kanagawa, Japan
| | - M Nakamura
- Matsumoto City Hospital, 4417-180 Hata, 390-1401 Matsumoto-city, Nagano, Japan
| | - M Miyasaka
- Department of Nursing, Matsumoto Junior College, 3118, Sasaga, 399-0033, Matsumoto-city, Nagano, Japan
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Chen P, Yang W, Nagaoka K, Huang GL, Miyazaki T, Hong T, Li S, Igarashi K, Takeda K, Kakimi K, Kataoka K, Cabral H. An IL-12-Based Nanocytokine Safely Potentiates Anticancer Immunity through Spatiotemporal Control of Inflammation to Eradicate Advanced Cold Tumors. Adv Sci (Weinh) 2023; 10:e2205139. [PMID: 36739605 PMCID: PMC10074049 DOI: 10.1002/advs.202205139] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/12/2022] [Indexed: 06/18/2023]
Abstract
Treatment of immunologically cold tumors is a major challenge for immune checkpoint inhibitors (ICIs). Interleukin 12 (IL-12) can invigorate ICIs against cold tumors by establishing a robust antitumor immunity. However, its toxicity and systemic induction of counteracting immunosuppressive signals have hindered translation. Here, IL-12 activity is spatiotemporally controlled for safely boosting efficacy without the stimulation of interfering immune responses by generating a nanocytokine that remains inactive at physiological pH, but unleashes its full activity at acidic tumor pH. The IL-12-based nanocytokine (Nano-IL-12) accumulate and release IL-12 in tumor tissues, eliciting localized antitumoral inflammation, while preventing systemic immune response, counteractive immune reactions, and adverse toxicities even after repeated intravenous administration. The Nano-IL-12-mediated spatiotemporal control of inflammation prompt superior anticancer efficacy, and synergize with ICIs to profoundly inflame the tumor microenvironment and completely eradicate ICI-resistant primary and metastatic tumors. The strategy could be a promising approach toward safer and more effective immunotherapies.
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Affiliation(s)
- Pengwen Chen
- Department of BioengineeringGraduate School of EngineeringThe University of Tokyo7‐3‐1 HongoBunkyo‐kuTokyo113‐8656Japan
| | - Wenqian Yang
- Department of BioengineeringGraduate School of EngineeringThe University of Tokyo7‐3‐1 HongoBunkyo‐kuTokyo113‐8656Japan
| | - Koji Nagaoka
- Department of ImmunotherapeuticsThe University of Tokyo Hospital7‐3‐1 Hongo, Bunkyo‐kuTokyo113‐8655Japan
| | - George Lo Huang
- Department of BioengineeringGraduate School of EngineeringThe University of Tokyo7‐3‐1 HongoBunkyo‐kuTokyo113‐8656Japan
| | - Takuya Miyazaki
- Red Arrow Therapeutics, Inc.7‐3‐1 Hongo, Bunkyo‐kuTokyo113‐0003Japan
- Kanagawa Institute of Industrial Science and Technology705‐1ShimoimaizumiEbina CityKanagawa243‐0435Japan
| | - Taehun Hong
- Department of BioengineeringGraduate School of EngineeringThe University of Tokyo7‐3‐1 HongoBunkyo‐kuTokyo113‐8656Japan
| | - Shangwei Li
- Department of BioengineeringGraduate School of EngineeringThe University of Tokyo7‐3‐1 HongoBunkyo‐kuTokyo113‐8656Japan
| | - Kazunori Igarashi
- Department of Otorhinolaryngology and Head and Neck SurgeryGraduate School of Medicine and Faculty of MedicineThe University of Tokyo7‐3‐1 Hongo, Bunkyo‐kuTokyo113‐0033Japan
| | - Kazuyoshi Takeda
- Department of Biofunctional MicrobiotaGraduate School of MedicineJuntendo University2‐1‐1 Hongo, Bunkyo‐kuTokyo113‐8421Japan
- Laboratory of Cell BiologyResearch Support CenterGraduate School of MedicineJuntendo University2‐1‐1 Hongo, Bunkyo‐kuTokyo113‐8421Japan
| | - Kazuhiro Kakimi
- Department of ImmunotherapeuticsThe University of Tokyo Hospital7‐3‐1 Hongo, Bunkyo‐kuTokyo113‐8655Japan
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine (iCONM)Kawasaki Institute of Industrial Promotion3‐25‐14 Tonomachi, Kawasaki‐kuKawasaki210‐0821Japan
| | - Horacio Cabral
- Department of BioengineeringGraduate School of EngineeringThe University of Tokyo7‐3‐1 HongoBunkyo‐kuTokyo113‐8656Japan
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Oka M, Ichijo K, Koda K, Kamogashira T, Kinoshita M, Igarashi K, Kawahara T, Takashima I, Yamasoba T, Fujimoto C. Preceding Balance Disorders Affect Vestibular Function in Persistent Postural-Perceptual Dizziness. J Clin Med 2023; 12:2589. [PMID: 37048672 PMCID: PMC10095344 DOI: 10.3390/jcm12072589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 04/14/2023] Open
Abstract
Persistent postural-perceptual dizziness (PPPD) is induced by preceding conditions that cause balance disorders. To investigate the association between vestibular function and preceding balance disorders in PPPD patients, a retrospective chart review was performed. Vestibular function in 55 PPPD patients was measured using the caloric test, cervical vestibular evoked myogenic potential testing to air-conducted sound (ACS cVEMP), ocular vestibular evoked myogenic potential testing to bone-conducted vibration (BCV oVEMP), and video head impulse testing (vHIT). Patients were classified according to the type of preceding balance disorder. The age-stratified Cochran-Mantel-Haenszel (CMH) test and the exact test for the common odds ratio were conducted to evaluate the association between preceding n ≥ 4 balance disorders and present peripheral vestibular dysfunction. PPPD patients with preceding vestibular neuritis presented a significant positive association with abnormal caloric responses (p = 0.013), while those with preceding benign paroxysmal positional vertigo (BPPV) had significantly lower rates of abnormal BCV oVEMP (p = 0.003). Furthermore, patients with preceding vestibular neuritis showed lateral semicircular canal dysfunction, while those with preceding BPPV presented normal utricular functions. These results present the influence of preceding balance disorders on the vestibular function in PPPD.
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Affiliation(s)
- Mineko Oka
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Kentaro Ichijo
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Kento Koda
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Teru Kamogashira
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Makoto Kinoshita
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Kazunori Igarashi
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Takuya Kawahara
- Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Ikumi Takashima
- Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Tatsuya Yamasoba
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Chisato Fujimoto
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo 113-8655, Japan
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Miyazaki T, Chen S, Florinas S, Igarashi K, Matsumoto Y, Yamasoba T, Xu ZQ, Wu H, Gao C, Kataoka K, Christie RJ, Cabral H. A Hoechst Reporter Enables Visualization of Drug Engagement In Vitro and In Vivo: Toward Safe and Effective Nanodrug Delivery. ACS Nano 2022; 16:12290-12304. [PMID: 35942986 DOI: 10.1021/acsnano.2c03170] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Assessment of drug activation and subsequent interaction with targets in living tissues could guide nanomedicine design, but technologies enabling insight into how a drug reaches and binds its target are limited. We show that a Hoechst-based reporter system can monitor drug release and engagement from a nanoparticle delivery system in vitro and in vivo, elucidating differences in target-bound drug distribution related to drug-linker and nanoparticle properties. Drug engagement is defined as chemical detachment of drug or reporter from a nanoparticle and subsequent binding to a subcellular target, which in the case of Hoechst results in a fluorescence signal. Hoechst-based nanoreporters for drug activation contain prodrug elements such as dipeptide linkers, conjugation handles, and nanoparticle modifications such as targeting ligands to determine how nanomedicine design affects distribution of drug engaged with a subcellular target, which is tracked via cellular nuclear fluorescence in situ. Furthermore, the nanoplatform is amenable toward common maleimide-based linkers found in many prodrug-based delivery systems including polymer-, peptide-, and antibody-drug conjugates. Findings from the Hoechst reporter system were applied to develop highly potent, targeted, anticancer micelle nanoparticles delivering a monomethyl auristatin E (MMAE) prodrug comprising the same linkers employed in Hoechst studies. MMAE nanomedicine with the optimal drug-linker resulted in effective tumor growth inhibition in mice without associated acute toxicity, whereas the nonoptimal linker that showed broader drug activation in Hoechst reporter studies resulted in severe toxicity. Our results demonstrate the potential to synergize direct visualization of drug engagement with nanomedicine drug-linker design to optimize safety and efficacy.
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Affiliation(s)
- Takuya Miyazaki
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Kanagawa Institute of Industrial Science and Technology (KISTEC), 705-1 Shimoimaizumi, Ebina, Kanagawa 243-0435, Japan
| | - Shaoyi Chen
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Stelios Florinas
- Antibody Discovery and Protein Engineering, AstraZeneca R&D, 1 MedImmune Way, Gaithersburg, Maryland 20878, United States
| | - Kazunori Igarashi
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yu Matsumoto
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ze-Qi Xu
- SynChem, Inc., Elk Grove Village, Illinois 60007, United States
| | - Herren Wu
- Antibody Discovery and Protein Engineering, AstraZeneca R&D, 1 MedImmune Way, Gaithersburg, Maryland 20878, United States
| | - Changshou Gao
- Antibody Discovery and Protein Engineering, AstraZeneca R&D, 1 MedImmune Way, Gaithersburg, Maryland 20878, United States
| | - Kazunori Kataoka
- Innovation Center of Nanomedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - R James Christie
- Antibody Discovery and Protein Engineering, AstraZeneca R&D, 1 MedImmune Way, Gaithersburg, Maryland 20878, United States
- Biologics Engineering, AstraZeneca Oncology R&D, 1 MedImmune Way, Gaithersburg, Maryland 20878, United States
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Dy AES, Kashio A, Fujimoto C, Kinoshita M, Kikkawa YS, Hoshi Y, Igarashi K, Uranaka T, Iwasaki S, Yamasoba T. Vestibular Imaging and Function in Patients With Inner Ear Malformation Presenting With Profound Hearing Loss. OTO Open 2022; 6:2473974X221128912. [PMID: 36187437 PMCID: PMC9516417 DOI: 10.1177/2473974x221128912] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 08/28/2022] [Indexed: 12/01/2022] Open
Abstract
Objective Vestibular impairment has been observed in patients with congenital hearing
loss, but little is known about the vestibular anatomy and function of those
in this group with inner ear malformations. This study aims to investigate
the association between vestibulocochlear anatomy and vestibular function
test results in children with inner ear malformations. Study Design Case series with chart review. Setting Pediatric patients with inner ear malformations presenting with bilateral
profound hearing loss at a tertiary hospital from 1999 to 2017. Methods Ears were classified into subgroups based on anatomic abnormalities seen on
computed tomography imaging. Cervical vestibular evoked myogenic potential
(cVEMP), rotatory chair, and caloric test results were obtained and
collated. Descriptive and inferential statistics were calculated. Results Of 82 ears, 29.3% had incomplete partition type II malformation, the most
common type. The second-most common type was isolated vestibular organ
anomaly (20.7%), which is not included in currently accepted categories.
Most ears exhibited abnormal vestibular function. Abnormal vestibule volume
was associated with a nonreactive cVEMP (P < .001).
Radiologically abnormal lateral semicircular canals were associated with
abnormal caloric and rotatory chair results (P <
.001). Conclusion With a relatively large number of cases of isolated vestibular organ anomaly
not only in our study but also in previous publications, we suggest that
this category be added to the subsets of inner ear malformations. Abnormal
vestibule volume was significantly associated with a nonreactive cVEMP
finding. The majority of patients with hearing loss secondary to inner ear
malformations have abnormal vestibular function test results.
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Affiliation(s)
- Alexander Edward S. Dy
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Otolaryngology–Head and Neck Surgery, St Luke’s Medical Center, Quezon City, Philippines
| | - Akinori Kashio
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Chisato Fujimoto
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Makoto Kinoshita
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yayoi S. Kikkawa
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Otolaryngology, Tokyo Teishin Hospital, Tokyo, Japan
| | - Yujiro Hoshi
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazunori Igarashi
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tsukasa Uranaka
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinichi Iwasaki
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Otolaryngology and Head and Neck Surgery, Nagoya City University, Nagoya, Japan
| | - Tatsuya Yamasoba
- Department of Otolaryngology and Head and Neck Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Kitayama Y, Yamada T, Kiguchi K, Yoshida A, Hayashi S, Akasaka H, Igarashi K, Nishimura Y, Matsumoto Y, Sasaki R, Takano E, Sunayama H, Takeuchi T. In vivo stealthified molecularly imprinted polymer nanogels incorporated with gold nanoparticles for radiation therapy. J Mater Chem B 2022; 10:6784-6791. [PMID: 35621050 DOI: 10.1039/d2tb00481j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Radiation therapy is a representative therapeutic approach for cancer treatment, wherein the development of efficient radiation sensitizers with low side effects is critical. In this study, a novel stealth radiation sensitizer based on Au-embedded molecularly imprinted polymer nanogels (Au MIP-NGs) was developed for low-dose X-ray radiation therapy. Surface plasmon resonance measurements reveal the good affinity and selectivity of the obtained Au MIP-NGs toward the target dysopsonic protein, human serum albumin. The protein recognition capability of the nanogels led to the formation of the albumin-rich protein corona in the plasma. The Au MIP-NGs acquire stealth capability in vivo through protein corona regulation using the intrinsic dysopsonic proteins. The injection of Au MIP-NGs improved the efficiency of the radiation therapy in mouse models of pancreatic cancer. The growth of the pancreatic tumor was inhibited even at low X-ray doses (2 Gy). The novel strategy reported in this study for the synthesis of stealth nanomaterials based on nanomaterial-protein interaction control shows significant potential for application even in other approaches for cancer treatment, diagnostics, and theranostics. This strategy paves a way for the development of a wide range of effective nanomedicines for cancer therapy.
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Affiliation(s)
- Yukiya Kitayama
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan. .,Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Takuya Yamada
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Kentaro Kiguchi
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Aoi Yoshida
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Shuhei Hayashi
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Hiroaki Akasaka
- Graduate School of Medicine, Kobe University, Chuo Ku, 7-5-1, Kusunoki Cho, Kobe, Hyogo, 650-0017, Japan
| | - Kazunori Igarashi
- Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yuya Nishimura
- Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan
| | - Yu Matsumoto
- Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ryohei Sasaki
- Graduate School of Medicine, Kobe University, Chuo Ku, 7-5-1, Kusunoki Cho, Kobe, Hyogo, 650-0017, Japan
| | - Eri Takano
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Hirobumi Sunayama
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
| | - Toshifumi Takeuchi
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
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Hayakawa N, Kitayama Y, Igarashi K, Matsumoto Y, Takano E, Sunayama H, Takeuchi T. Fc Domain-Imprinted Stealth Nanogels Capable of Orientational Control of Immunoglobulin G Adsorbed In Vivo. ACS Appl Mater Interfaces 2022; 14:16074-16081. [PMID: 35353480 DOI: 10.1021/acsami.2c01953] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Regulation of nanomaterial-cell interaction is an important requisite for a variety of biomedical applications such as drug delivery systems and theranostics. Here, we demonstrate the regulation of nanomaterial-cell interaction using the oriented adsorption of intrinsic immunoglobulin G (IgG) on molecularly imprinted polymer nanogels (MIP-NGs) capable of recognizing the fragment crystallizable (Fc) domain of IgG. The unique domain recognition property resulted in the suppression of the immune response in Fc domain receptor-possessing macrophages and natural killer cells due to the regulation of protein corona based on the oriented adsorption of IgG. This resulted in the hindrance of the Fc domain, which is the trigger of an immune response. Furthermore, the acquisition of stealth capability was successfully demonstrated in vivo using intravital confocal laser scanning microscopy. The domain imprinting proposed in this study will provide a new strategy for creating nanomaterials capable of domain recognition-based oriented adsorption of intrinsic proteins in situ, thus regulating the protein corona formed on the nanomaterials. Thus, the unique Fc domain-recognition nanomaterial developed in our study can be used for various biomedical applications to target specific cells without triggering an immune response.
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Affiliation(s)
- Natsuki Hayakawa
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Yukiya Kitayama
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
- Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kazunori Igarashi
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yu Matsumoto
- Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Eri Takano
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Hirobumi Sunayama
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Toshifumi Takeuchi
- Graduate School of Engineering, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
- Center for Advanced Medical Engineering Research & Development (CAMED), Kobe University, 1-5-1 Minatojimaminami-machi, Chuo-ku, Kobe 650-0047, Japan
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9
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Igarashi K, Cabral H, Hong T, Anraku Y, Mpekris F, Stylianopoulos T, Khan T, Matsumoto A, Kataoka K, Matsumoto Y, Yamasoba T. Vascular Bursts Act as a Versatile Tumor Vessel Permeation Route for Blood-Borne Particles and Cells. Small 2021; 17:e2103751. [PMID: 34528759 DOI: 10.1002/smll.202103751] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Indexed: 06/13/2023]
Abstract
Dynamic bursting in tumor vasculature has recently sparked interest as a novel particle transportation route for drug delivery. These bursts facilitate the transport of sub-100 nm nanoparticles into tumors, though their contribution on the access of other blood-borne particles remains unknown. To evaluate the versatility of this phenomenon, the in vivo kinetics of a variety of intravenously injected particles and their penetration in tumor xenografts and allografts are compared. Dextran, polymeric micelles, liposomes, and polymeric vesicles with diameters ranging from 32 to 302 nm are found to colocalize in virtually all vascular bursts. By mathematical modeling, the burst vent size is estimated to be 625 nm or larger, indicating the dynamic and stochastic formation of large permeation routes in tumor vasculature. Furthermore, some burst vents are found to be µm-sized, allowing the transport of 1 µm microspheres. Moreover, antibody drugs and platelets are capable of utilizing vascular burst transportation, demonstrating the application of this phenomenon to other types of therapeutics and cellular components. These findings indicate the vast potential of vascular bursts, extending the biological and therapeutic significance of this phenomenon to a wide range of blood-borne particles and cells.
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Affiliation(s)
- Kazunori Igarashi
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Taehun Hong
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Yasutaka Anraku
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Fotios Mpekris
- Cancer Biophysics Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, 1678, Cyprus
| | - Triantafyllos Stylianopoulos
- Cancer Biophysics Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, 1678, Cyprus
| | - Thahomina Khan
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Akira Matsumoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
- Kanagawa Institute of Industrial Science and Technology, 3-25-13 Tono-machi, Kawasaki-ku, Kawasaki City, Kanagawa, 210-0821, Japan
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tono-machi, Kawasaki-ku, Kawasaki City, Kanagawa, 210-0821, Japan
- Institute of Future Initiatives, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 133-0033, Japan
| | - Yu Matsumoto
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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10
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Troisi RI, Berardi G, Morise Z, Cipriani F, Ariizumi S, Sposito C, Panetta V, Simonelli I, Kim S, Goh BKP, Kubo S, Tanaka S, Takeda Y, Ettorre GM, Russolillo N, Wilson GC, Cimino M, Montalti R, Giglio MC, Igarashi K, Chan CY, Torzilli G, Cheung TT, Mazzaferro V, Kaneko H, Ferrero A, Geller DA, Han HS, Kanazawa A, Wakabayashi G, Aldrighetti L, Yamamoto M. Laparoscopic and open liver resection for hepatocellular carcinoma with Child-Pugh B cirrhosis: multicentre propensity score-matched study. Br J Surg 2021; 108:196-204. [PMID: 33711132 DOI: 10.1093/bjs/znaa041] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/03/2020] [Accepted: 09/18/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Laparoscopic liver resection for hepatocellular carcinoma (HCC) in Child-Pugh A cirrhosis has been demonstrated as beneficial. However, the role of laparoscopy in Child-Pugh B cirrhosis is undetermined. The aim of this retrospective cohort study was to compare open and laparoscopic resection for HCC with Child-Pugh B cirrhosis. METHODS Data on liver resections were gathered from 17 centres. A 1 : 1 propensity score matching was performed according to 17 predefined variables. RESULTS Of 382 available liver resections, 100 laparoscopic and 100 open resections were matched and analysed. The 90-day postoperative mortality rate was similar in open and laparoscopic groups (4.0 versus 2.0 per cent respectively; P = 0.687). Laparoscopy was associated with lower blood loss (median 110 ml versus 400 ml in the open group; P = 0.004), less morbidity (38.0 versus 51.0 per cent respectively; P = 0.041) and fewer major complications (7.0 versus 21.0 per cent; P = 0.010), and ascites was lower on postoperative days 1, 3 and 5. For laparoscopic resections, patients with portal hypertension developed more complications than those without (26 versus 12 per cent respectively; P = 0.002), and patients with a Child-Pugh B9 score had higher morbidity rates than those with B8 and B7 (7 of 8, 10 of 16 and 21 of 76 respectively; P < 0.001). Median hospital stay was 7.5 (range 2-243) days for laparoscopic liver resection and 18 (3-104) days for the open approach (P = 0.058). The 5-year overall survival rate was 47 per cent for open and 65 per cent for laparoscopic resection (P = 0.142). The 5-year disease-free survival rate was 32 and 37 per cent respectively (P = 0.742). CONCLUSION Patients without preoperative portal hypertension and Child-Pugh B7 cirrhosis may benefit most from laparoscopic liver surgery.
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Affiliation(s)
- R I Troisi
- Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy.,Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - G Berardi
- Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy.,Department of Human Structure and Repair, Ghent University, Ghent, Belgium.,Centre for Advanced Treatment of Hepato-Biliary-Pancreatic Diseases, Ageo Central General Hospital, Tokyo, Japan
| | - Z Morise
- Department of Surgery, Fujita Health University Hospital, Toyoake, Japan
| | - F Cipriani
- Hepatobiliary Surgery Division, San Raffaele Hospital, Milan, Italy
| | - S Ariizumi
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
| | - C Sposito
- Department of Hepato-Biliary-Pancreatic Surgery and Liver Transplantation, Istituto Nazionale Tumori, Milan, Italy
| | - V Panetta
- Biostatistics Department, Sapienza University of Rome, Rome, Italy
| | - I Simonelli
- Biostatistics Department, Sapienza University of Rome, Rome, Italy
| | - S Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul,South Korea
| | - B K P Goh
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore
| | - S Kubo
- Department of Surgery, Osaka City University Hospital, Osaka, Japan
| | - S Tanaka
- Department of Surgery, Osaka City University Hospital, Osaka, Japan
| | - Y Takeda
- Department of Surgery, Kansai Rosai Hospital, Amagasaki, Japan
| | - G M Ettorre
- Department of General and Hepato-Biliary-Pancreatic Surgery, Liver Transplantation Service, San Camillo Forlanini Hospital, Rome, Italy
| | - N Russolillo
- Department of Surgery, Mauriziano Hospital, Turin, Italy
| | - G C Wilson
- Division of Hepatobiliary and Pancreatic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - M Cimino
- Department of General Surgery, Humanitas University and Research Hospital, IRCCS, Milan, Italy
| | - R Montalti
- Department of Public Health, Federico II University, Naples, Italy
| | - M C Giglio
- Division of HPB, Minimally Invasive and Robotic Surgery, Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy
| | - K Igarashi
- Centre for Advanced Treatment of Hepato-Biliary-Pancreatic Diseases, Ageo Central General Hospital, Tokyo, Japan
| | - C-Y Chan
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore
| | - G Torzilli
- Department of General Surgery, Humanitas University and Research Hospital, IRCCS, Milan, Italy
| | - T T Cheung
- Division of Hepato-Biliary-Pancreatic and Liver Transplantation, Queen Mary Hospital, University of Hong Kong, Hong Kong, China
| | - V Mazzaferro
- Department of Hepato-Biliary-Pancreatic Surgery and Liver Transplantation, Istituto Nazionale Tumori, Milan, Italy
| | - H Kaneko
- Department of Surgery, Toho University of Tokyo, Tokyo, Japan
| | - A Ferrero
- Department of Surgery, Mauriziano Hospital, Turin, Italy
| | - D A Geller
- Division of Hepatobiliary and Pancreatic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - H-S Han
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul,South Korea
| | - A Kanazawa
- Department of Surgery, Osaka City General Hospital, Osaka, Japan
| | - G Wakabayashi
- Centre for Advanced Treatment of Hepato-Biliary-Pancreatic Diseases, Ageo Central General Hospital, Tokyo, Japan
| | - L Aldrighetti
- Hepatobiliary Surgery Division, San Raffaele Hospital, Milan, Italy
| | - M Yamamoto
- Department of Surgery, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan
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11
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Miwa S, Nojima T, Alomesen AA, Ikeda H, Yamamoto N, Nishida H, Hayashi K, Takeuchi A, Igarashi K, Higuchi T, Yonezawa H, Araki Y, Morinaga S, Asano Y, Tsuchiya H. Associations of PD-L1, PD-L2, and HLA class I expression with responses to immunotherapy in patients with advanced sarcoma: post hoc analysis of a phase 1/2 trial. Clin Transl Oncol 2021; 23:1620-1629. [PMID: 33635466 DOI: 10.1007/s12094-021-02559-z] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/26/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Although immunotherapy is thought to be a promising cancer treatment, most patients do not respond to immunotherapy. In this post hoc analysis of a phase 1/2 study, associations of programmed death ligand 1 (PD-L1), PD-L2, and HLA class I expressions with responses to dendritic cells (DCs)-based immunotherapy were investigated in patients with advanced sarcoma. METHODS This study enrolled 35 patients with metastatic and/or recurrent sarcomas who underwent DC-based immunotherapy. The associations of PD-L1, PD-L2, and HLA class I expressions in tumor specimens, which were resected before immunotherapy, with immune responses (increases of IFN-γ and IL-12) and oncological outcomes were evaluated. RESULTS Patients who were PD-L2 (+) showed lower increases of IFN-γ and IL-12 after DC-based immunotherapy than patients who were PD-L2 (-). The disease control (partial response or stable disease) rates of patients who were PD-L1 (+) and PD-L1 (-) were 0% and 22%, respectively. Disease control rates of patients who were PD-L2 (+) and PD-L2 (-) were 13% and 22%, respectively. Patients who were PD-L1 (+) tumors had significantly poorer overall survival compared with patients who were PD-L1 (-). No associations of HLA class I expression with the immune response or oncological outcomes were observed. CONCLUSIONS This study suggests that PD-L1 and PD-L2 are promising biomarkers of DC-based immunotherapy, and that addition of immune checkpoint inhibitors to DC-based immunotherapy may improve the outcomes of DC-based immunotherapy.
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Affiliation(s)
- S Miwa
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan.
| | - T Nojima
- Department of Pathology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - A A Alomesen
- Department of Pathology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - H Ikeda
- Department of Pathology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - N Yamamoto
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - H Nishida
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - K Hayashi
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - A Takeuchi
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - K Igarashi
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - T Higuchi
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - H Yonezawa
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Y Araki
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - S Morinaga
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Y Asano
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - H Tsuchiya
- Department of Orthopedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
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12
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Khan T, Igarashi K, Tanabe A, Miyazawa T, Fukushima S, Miura Y, Matsumoto Y, Yamasoba T, Matsumoto A, Cabral H, Kataoka K. Structural Control of Boronic Acid Ligands Enhances Intratumoral Targeting of Sialic Acid To Eradicate Cancer Stem-like Cells. ACS Appl Bio Mater 2020; 3:5030-5039. [DOI: 10.1021/acsabm.0c00530] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Thahomina Khan
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunori Igarashi
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Otorhinolaryngology Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ami Tanabe
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taiki Miyazawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Shigeto Fukushima
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Yutaka Miura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yu Matsumoto
- Department of Otorhinolaryngology Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Akira Matsumoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
- Kanagawa Institute of Industrial Science and Technology, Kawasaki 213-0012, Japan
| | - Horacio Cabral
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
- Institute for Future Initiatives, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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13
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Tao A, Huang GL, Igarashi K, Hong T, Liao S, Stellacci F, Matsumoto Y, Yamasoba T, Kataoka K, Cabral H. Polymeric Micelles Loading Proteins through Concurrent Ion Complexation and pH-Cleavable Covalent Bonding for In Vivo Delivery. Macromol Biosci 2019; 20:e1900161. [PMID: 31310454 DOI: 10.1002/mabi.201900161] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 05/09/2019] [Revised: 06/29/2019] [Indexed: 12/17/2022]
Abstract
Protein drugs have great potential as targeted therapies, yet their application suffers from several drawbacks, such as instability, short half-life, and adverse immune responses. Thus, protein delivery approaches based on stimuli-responsive nanocarriers can provide effective strategies for selectively enhancing the availability and activation of proteins in targeted tissues. Herein, polymeric micelles with the ability of encapsulating proteins are developed via concurrent ion complexation and pH-cleavable covalent bonding between proteins and block copolymers directed to pH-triggered release of the protein payload. Carboxydimethylmaleic anhydride (CDM) is selected as the pH-sensitive moiety, since the CDMamide bond is stable at physiological pH (pH 7.4), while it cleaves at pH 6.5, that is, the pathophysiological pH of tumors and inflammatory tissues. By using poly(ethylene glycol)-poly(l-lysine) block copolymers having 45% CDM addition, different proteins with various sizes and isoelectric points are loaded successfully. By using myoglobin-loaded micelles (myo/m) as a model, the stability of the micelles in physiological conditions and the dissociation and release of functional myoglobin at pH 6.5 are successfully confirmed. Moreover, myo/m shows extended half-life in blood compared to free myoglobin and micelles assembled solely by polyion complex, indicating the potential of this system for in vivo delivery of proteins.
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Affiliation(s)
- Anqi Tao
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - George Lo Huang
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazunori Igarashi
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Taehun Hong
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Suiyang Liao
- Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Francesco Stellacci
- Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland.,Interfaculty Bioengineering Institute, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Yu Matsumoto
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine (iCONM), Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, 210-0821, Japan.,Institute for Future Initiatives, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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14
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Miyazaki T, Igarashi K, Matsumoto Y, Cabral H. One-Pot Synthesis of PEG–Poly(amino acid) Block Copolymers Assembling Polymeric Micelles with PEG-Detachable Functionality. ACS Biomater Sci Eng 2019; 5:5727-5733. [DOI: 10.1021/acsbiomaterials.8b01549] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takuya Miyazaki
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunori Igarashi
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yu Matsumoto
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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15
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Sato Y, Matsui-Watanabe M, Matsumoto M, Sharda D, Igarashi K, Okuyama R. 330 Deficiency of Bach2 results in improved tumor immunity by enhancing effector function in CD8 T cells. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.525] [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]
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16
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Sato Y, Matsui-Watanabe M, Sharda D, Igarashi K, Okuyama R. 032 Bach2 suppresses tumor immunity by repressing effector function-related gene in CD8 + T cells. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.045] [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]
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17
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Kato J, Kawagoe Y, Jiang D, Kuwasako K, Shimamoto S, Igarashi K, Tokashiki M, Kitamura K. Plasma levels of natriuretic peptides and year-by-year blood pressure variability: a population-based study. J Hum Hypertens 2017; 31:525-529. [DOI: 10.1038/jhh.2017.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 01/12/2017] [Accepted: 01/23/2017] [Indexed: 10/20/2022]
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18
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Kojima K, Yamashita K, Ushiku H, Katoh H, Ishii S, Tanaka T, Yokoi K, Suzuki M, Ooizumi Y, Igarashi K, Hosoda K, Moriya H, Mieno H, Katada N, Tanabe S, Watanabe M. The clinical significance of cysteine dioxygenase type 1 methylation in Barrett esophagus adenocarcinoma. Dis Esophagus 2017; 30:1-9. [PMID: 28184414 DOI: 10.1093/dote/dow001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 12/11/2022]
Abstract
Methylation of cysteine dioxygenase type 1 (CDO1) gene, a tumor suppressor gene, has been studied in various cancers; however, there is no information regarding Barrett esophagus cancer. In this study, the clinical significance of CDO1 methylation in Barrett esophagus adenocarcinoma (BEA) was clarified. CDO1 gene promoter methylation was analyzed for DNA from the patient's specimens using quantitative methylation-specific polymerase chain reaction. Thirty-eight BEA patients who underwent resection were identified between 2000 and 2014. Hypermethylation of CDO1 gene was demonstrated to be frequently recognized even at early stage in BEA by quantitative methylation-specific polymerase chain reaction. In BEA, there is a robust prognostic difference between stage I and stage II/III/IV with regard to 5-year relapse-free survival (P = 0.0016) and 5-year overall survival (P = 0.0024), and the tumor size separated by 7 cm was also a prognostic factor. There was significant difference in CDO1 gene methylation according to the tumor size (P = 0.036). BEA patients with CDO1 gene methylation were shown marginally significantly poorer prognosis (P = 0.054) than otherwise patients. In conclusion, higher CDO1 gene methylation was seen in BEA at earlier stage than in squamous cell carcinoma, and it may account for aggressive phenotype of BEA.
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Affiliation(s)
- K Kojima
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - K Yamashita
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - H Ushiku
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - H Katoh
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - S Ishii
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - T Tanaka
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - K Yokoi
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - M Suzuki
- Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Y Ooizumi
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - K Igarashi
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - K Hosoda
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - H Moriya
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - H Mieno
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - N Katada
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
| | - S Tanabe
- Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Japan
| | - M Watanabe
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Japan
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19
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Fu YS, Hanaguri T, Igarashi K, Kawamura M, Bahramy MS, Sasagawa T. Observation of Zeeman effect in topological surface state with distinct material dependence. Nat Commun 2016; 7:10829. [PMID: 26905818 PMCID: PMC4770087 DOI: 10.1038/ncomms10829] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/25/2016] [Indexed: 11/09/2022] Open
Abstract
Manipulating the spins of the topological surface states represents an essential step towards exploring the exotic quantum states emerging from the time reversal symmetry breaking via magnetic doping or external magnetic fields. The latter case relies on the Zeeman effect and thereby we need to estimate the g-factor of the topological surface state precisely. Here, we report the direct observations of the Zeeman effect at the surfaces of Bi2Se3 and Sb2Te2Se by spectroscopic-imaging scanning tunnelling microscopy. The Zeeman shift of the zero mode Landau level is identified unambiguously by appropriately excluding the extrinsic effects arising from the nonlinearity in the band dispersion of the topological surface state and the spatially varying potential. Surprisingly, the g-factors of the topological surface states in Bi2Se3 and Sb2Te2Se are very different (+18 and −6, respectively). Such remarkable material dependence opens up a new route to control the spins of the topological surface states. The knowledge of how electrons behave under magnetic field provides inherent information for exotic quantum states. Here, Fu et al. find different g-factors of topological surface states in Bi2Se3 and Sb2Te2Se, which suggests possible control of such states in spin-related applications.
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Affiliation(s)
- Ying-Shuang Fu
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China.,RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan
| | - T Hanaguri
- RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan
| | - K Igarashi
- Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - M Kawamura
- RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan
| | - M S Bahramy
- RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan.,Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - T Sasagawa
- Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
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20
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Kudo S, Igarashi K, Kimura H. Influence of the Fukushima Dai-ichi Nuclear Power Plant accident on environmental radioactivity in Aomori Prefecture. Radiat Prot Dosimetry 2015; 167:353-357. [PMID: 25953795 DOI: 10.1093/rpd/ncv278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Radioactive nuclides with a short half-life, such as (131)I and (134)Cs, were detected in environmental samples collected in Aomori Prefecture after the Tokyo Electric Power Company Fukushima Dai-ichi Nuclear Power Plant accident in March 2011. In addition, the observed (137)Cs concentration was increased over the background level. The gaseous (131)I concentration in air observed in April was higher than that observed in March immediately after the accident. Using a backward trajectory analysis, the authors found that the air mass had passed the vicinity of the Fukushima Dai-ichi Nuclear Power Plant when the gaseous (131)I concentration in air was increasing. Maximum (131)I and radioactive Cs concentrations in daily fallout samples collected in Aomori city were observed on 28 April, when (131)I was also detected in air. (134)Cs and (137)Cs concentration ratios in pine needles and pasture grass were nearly equal to 1, which indicates that the source of these radionuclides was the nuclear power plant accident.
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Affiliation(s)
- S Kudo
- Aomori Prefectural Nuclear Power Safety Center, 400-1 Kurauchi Sasazaki, Rokkasho-mura, Aomori, Japan
| | - K Igarashi
- Aomori Prefectural Nuclear Power Safety Center, 400-1 Kurauchi Sasazaki, Rokkasho-mura, Aomori, Japan
| | - H Kimura
- Aomori Prefectural Nuclear Power Safety Center, 400-1 Kurauchi Sasazaki, Rokkasho-mura, Aomori, Japan
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21
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Shimamura K, Kubo T, Akasaka T, Kozuma K, Kimura K, Kawamura M, Sumiyoshi T, Ino Y, Yoshiyama M, Sonoda S, Igarashi K, Miyazawa A, Uzui H, Sakanoue Y, Shinke T, Morino Y, Tanabe K, Kadota K, Kimura T. Outcomes of everolimus-eluting stent incomplete stent apposition: a serial optical coherence tomography analysis. Eur Heart J Cardiovasc Imaging 2014; 16:23-8. [DOI: 10.1093/ehjci/jeu174] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Sugimoto K, Tanaka H, Katada R, Yoshida M, Igarashi K, Matsumoto H. P-30 * ETHANOL-INDUCED EXPRESSION OF ION CHANNELS IN RAT BRAIN SLICES. Alcohol Alcohol 2014. [DOI: 10.1093/alcalc/agu054.30] [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
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23
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Igarashi K, Hoshi Y, Ashio A, Karino S, Akamatsu Y, Ogata E, Amasoba T. Cochlear Implantation Outcome in Patients with Common Cavity Deformity. Otolaryngol Head Neck Surg 2014. [DOI: 10.1177/0194599814541629a193] [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] [Indexed: 11/17/2022]
Abstract
Objectives: (1) Analyze our own cases and those in published reports involving cochlear implantation (CI). (2) Determine the factors affecting outcome in patients with common cavity (CC) deformity. Methods: We reviewed the English and Japanese literature published from January 1995 to December 2013 using the keywords “CC,” “CI,” and “cochlear malformation.” We included cochlear implanted CC patients whose records on occurrence of cerebral spinal fluid (CSF) gusher, facial nerve stimulation (FNS), number of inserted and actively used electrodes, or hearing levels before or after CI were available. Results: A total of 72 cochlear implanted CC patients were identified from 11 reports, including 5 patients from our institution. Individual hearing results as monosyllable and word scores were reported in 9 and 15 patients, respectively. Monosyllable hearing levels were greater in patients inserted with ≥20 electrodes and in those younger at time of CI. CSF gusher occurred in 18 (32%) of 57 patients, and FNS occurred in 12 (44%) of 27 patients. Conclusions: Individual data are important in assessing the outcome after CI in patients with CC because the outcomes vary significantly. Although there have been several reports, only a few have reported efficient data to discuss the propriety of each operation. Younger age at CI and greater number of inserted electrodes were associated with better outcome following CI in patients with CC. However, additional data are needed to confirm our findings.
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24
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Bunjobpol W, Dulloo I, Igarashi K, Concin N, Matsuo K, Sabapathy K. Suppression of acetylpolyamine oxidase by selected AP-1 members regulates DNp73 abundance: mechanistic insights for overcoming DNp73-mediated resistance to chemotherapeutic drugs. Cell Death Differ 2014; 21:1240-9. [PMID: 24722210 PMCID: PMC4085530 DOI: 10.1038/cdd.2014.41] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 02/17/2014] [Accepted: 02/28/2014] [Indexed: 12/18/2022] Open
Abstract
Enhanced resistance to chemotherapy has been correlated with high levels of Delta-Np73 (DNp73), an anti-apoptotic protein of the p53 tumor-suppressor family which inhibits the pro-apoptotic members such as p53 and TAp73. Although genotoxic drugs have been shown to induce DNp73 degradation, lack of mechanistic understanding of this process precludes strategies to enhance the targeting of DNp73 and improve treatment outcomes. Antizyme (Az) is a mediator of ubiquitin-independent protein degradation regulated by the polyamine biosynthesis pathway. We show here that acetylpolyamine oxidase (PAOX), a catabolic enzyme of this pathway, upregulates DNp73 levels by suppressing its degradation via the Az pathway. Conversely, downregulation of PAOX activity by siRNA-mediated knockdown or chemical inhibition leads to DNp73 degradation in an Az-dependent manner. PAOX expression is suppressed by several genotoxic drugs, via selected members of the activator protein-1 (AP-1) transcription factors, namely c-Jun, JunB and FosB, which are required for stress-mediated DNp73 degradation. Finally, chemical- and siRNA-mediated inhibition of PAOX significantly reversed the resistant phenotype of DNp73-overexpressing cancer cells to genotoxic drugs. Together, these data define a critical mechanism for the regulation of DNp73 abundance, and reveal that inhibition of PAOX could widen the therapeutic index of cytotoxic drugs and overcome DNp73-mediated chemoresistance in tumors.
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Affiliation(s)
- W Bunjobpol
- Laboratory of Molecular Carcinogenesis, Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11, Hospital Drive, Singapore, Singapore
| | - I Dulloo
- Laboratory of Molecular Carcinogenesis, Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11, Hospital Drive, Singapore, Singapore
| | - K Igarashi
- Amine Pharma Research Institute, Innovation Plaza at Chiba University, 1-8-15Inohana, Chiba, Japan
| | - N Concin
- Department of Obstetrics and Gynecology, Innsbruck Medical University, Anichstrasse 35, Innsbruck, Austria
| | - K Matsuo
- Department of Microbiology and Immunology, School of Medicine, Keio University, 35 Shinanomachi, Tokyo, Japan
| | - K Sabapathy
- Laboratory of Molecular Carcinogenesis, Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11, Hospital Drive, Singapore, Singapore
- Cancer and Stem Cell Biology Program, Duke-NUS Graduate Medical School, 8, College Road, Singapore, Singapore
- Department of Biochemistry, National University of Singapore, 8, Medical Drive, Singapore, Singapore
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Igarashi K, Yamamoto N, Shirai T, Hayashi K, Nishida H, Kimura H, Takeuchi A, Tsuchiya H. The long-term outcome following the use of frozen autograft treated with liquid nitrogen in the management of bone and soft-tissue sarcomas. Bone Joint J 2014; 96-B:555-61. [DOI: 10.1302/0301-620x.96b4.32629] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [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: 01/05/2023]
Abstract
In 1999, we developed a technique for biological reconstruction after excision of a bone tumour, which involved using autografts of the bone containing the tumour treated with liquid nitrogen. We have previously reported the use of this technique in 28 patients at a mean follow up of 27 months (10 to 54). In this study, we included 72 patients who underwent reconstruction using this technique. A total of 33 patients died and three were lost to follow-up, at a mean of 23 months (2 to 56) post-operatively, leaving 36 patients available for a assessment at a mean of 101 months 16 to 163) post-operatively. The methods of reconstruction included an osteo-articular graft in 16, an intercalary in 13 and, a composite graft with prosthesis in seven. Post-operative function was excellent in 26 patients (72.2%), good in seven (19.4%), and fair in three (8.3%) according to the functional evaluation system of Enneking. No recurrent tumour occurred within the grafts. The autografts survived in 29 patients (80.6%), and the rates of survival at five and ten years were 86.1% and 80.6 %, respectively. Seven of 16 osteo-articular grafts (44%) failed because of fracture or infection, but all the composite and intercalary grafts survived. The long-term outcomes of frozen autografting, particularly using composite and intercalary grafts, are satisfactory and thus represent a good method of treatment for patients with a sarcoma of bone or soft tissue. Cite this article: Bone Joint J 2014;96-B:555–61.
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Affiliation(s)
- K. Igarashi
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - N. Yamamoto
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - T. Shirai
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - K. Hayashi
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - H. Nishida
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - H. Kimura
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - A. Takeuchi
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
| | - H. Tsuchiya
- Kanazawa University, Department
of Orthopaedic Surgery, 13-1 Takaramachi, Kanazawa
920-8641, Japan
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26
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Sawada T, Nakamura K, Igarashi K, Shoji A, Kimura E, Hayashi H, Tahara K, Aoki J, Yatomi Y. AB0220 Serum phosphatidylserine-specific phospholipase A1 (PS-PLA1) is increased in active systemic lupus erythematosus (SLE) and is correlated with disease activity. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.220] [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]
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27
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Takahashi H, Tsuritani T, de Gabory ELT, Ito T, Peng WR, Igarashi K, Takeshima K, Kawaguchi Y, Morita I, Tsuchida Y, Mimura Y, Maeda K, Saito T, Watanabe K, Imamura K, Sugizaki R, Suzuki M. First demonstration of MC-EDFA-repeatered SDM transmission of 40 x 128-Gbit/s PDM-QPSK signals per core over 6,160-km 7-core MCF. Opt Express 2013; 21:789-795. [PMID: 23388971 DOI: 10.1364/oe.21.000789] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We demonstrate the first 7-core multicore erbium-doped fiber amplified (MC-EDFA) transmission of 40 x 128-Gbit/s PDM-QPSK signals over 6,160-km 7-core multicore fiber (MCF). The crosstalk (XT) from all of the other 6 cores of a MC-EDFA and a 55-km length MCF are about -46.5 dB and -45.6 dB at center core, respectively. The core-to-core rotation approach at every amplified span is used to average the XT of all cores. The averaged optical signal-to-noise ratio (OSNR) after 6,160-km transmission is 15.6 dB with 0.1 nm resolution bandwidth. The Q-factor of all 40 channels surpasses the threshold of the forward-error-correction of 6.4 dB with 1 dB margin after 6,160 km. The total net capacity is 28.8 Tbit/s per fiber and achieved capacity-distance product is 177 Pbit/s.km per fiber. We confirmed the feasibility of MC-EDFA repeatered systems for trans-oceanic transmission.
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Affiliation(s)
- H Takahashi
- KDDI R&D Laboratories Inc., Fujimino, Saitama, Japan.
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28
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Casolari DA, Makri M, Yoshida C, Muto A, Igarashi K, Melo JV. Transcriptional suppression of BACH2 by the Bcr-Abl oncoprotein is mediated by PAX5. Leukemia 2012; 27:409-15. [DOI: 10.1038/leu.2012.220] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Mitani K, Haruyama N, Hatakeyama J, Igarashi K. Amelogenin splice isoforms stimulate chondrogenic differentiation of ATDC5 cells. Oral Dis 2012; 19:169-79. [DOI: 10.1111/j.1601-0825.2012.01967.x] [Citation(s) in RCA: 4] [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: 11/14/2011] [Revised: 06/03/2012] [Accepted: 06/15/2012] [Indexed: 12/15/2022]
Affiliation(s)
- K Mitani
- Department of Oral Dysfunction Science; Tohoku University Graduate School of Dentistry; Sendai Japan
| | - N Haruyama
- Department of Oral Dysfunction Science; Tohoku University Graduate School of Dentistry; Sendai Japan
- Global Centre of Excellence Program; International Research Centre for Molecular Science in Tooth and Bone Diseases; Tokyo Medical and Dental University; Tokyo Japan
| | - J Hatakeyama
- Functional Structure Section; Fukuoka Dental College; Fukuoka Japan
| | - K Igarashi
- Department of Oral Dysfunction Science; Tohoku University Graduate School of Dentistry; Sendai Japan
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30
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Nakanome A, Brydun A, Matsumoto M, Ota K, Funayama R, Nakayama K, Ono M, Shiga K, Kobayashi T, Igarashi K. Bach1 is critical for the transformation of mouse embryonic fibroblasts by RasV12 and maintains ERK signaling. Oncogene 2012; 32:3231-45. [DOI: 10.1038/onc.2012.336] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 06/07/2012] [Accepted: 06/20/2012] [Indexed: 12/23/2022]
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Abstract
Physiochemical assessment of the parasite-biomaterial interface is essential in the development of new biomaterials. The purpose of this study was to develop a method to evaluate pH at the bacteria-dental cement interface and to demonstrate physiochemical interaction at the interface. The experimental apparatus with a well (4.0 mm in diameter and 2.0 mm deep) was made of polymethyl methacrylate with dental cement or polymethyl methacrylate (control) at the bottom. Three representative dental cements (glass-ionomer, zinc phosphate, and zinc oxide-eugenol cements) were used. Each specimen was immersed in 2 mM potassium phosphate buffer for 10 min, 24 hrs, 1 wk, or 4 wks. The well was packed with Streptococcus mutans NCTC 10449, and a miniature pH electrode was placed at the interface between bacterial cells and dental cement. The pH was monitored after the addition of 1% glucose, and the fluoride contained in the cells was quantified. Glass-ionomer cement inhibited the bacteria-induced pH fall significantly compared with polymethyl methacrylate (control) at the interface (10 min, 5.16 ± 0.19 vs. 4.50 ± 0.07; 24 hrs, 5.20 ± 0.07 vs. 4.59 ± 0.11; 1 wk, 5.34 ± 0.14 vs. 4.57 ± 0.11; and 4 wks, 4.95 ± 0.27 vs. 4.40 ± 0.14), probably due to the fluoride released from the cement. This method could be useful for the assessment of pH at the parasite-biomaterial interface.
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Affiliation(s)
- G Mayanagi
- Division of Oral Ecology and Biochemistry, Department of Oral Biology, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan
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32
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Miwa S, Shirai T, Taki J, Yamamoto N, Nishida H, Hayashi K, Kimura H, Takeuchi A, Igarashi K, Tsuchiya H. A novel combined radiologic method for evaluation of the response to chemotherapy for primary bone sarcoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10035] [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: 11/20/2022] Open
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33
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Kwong W, Neilson AL, Hamilton RM, Chiu CC, Stephenson EA, Gross GJ, Soucie L, Kirsh JA, xian-hui Z, Bao-peng T, Jin-xin L, Yu Z, Yan-yi Z, Jiang-hua Z, Hirahara T, Sugawara Y, Suga C, Ako J, Momomura S, Ardashev AV, Zhelyakov EG, Konev AV, Rybachenko MS, Belenkov YN, Bai R, Di Biase L, Santangeli P, Saenz LC, Verma A, Sanchez J, Tondo C, Natale A, Safari F, Hajizadeh S, Mani A, Khoshbaten A, Foadoddini M, Forush SS, Bayat G, Kim SH, Chong D, Ching CK, Liew R, Galalardin, Khin MW, Teo WS, Chong D, Tan BY, Liew R, Ching CK, Teo WS, Sakamoto T, Al Mehairi M, Al Ghamdi SA, Dagriri K, Al Fagih A, Selvaraj R, Ezhumalai B, Satheesh S, Ajit A, Gobu P, Balachander J, Liu XQ, Zhou X, Yang G, Zhong GZ, Shi L, Tian Y, Li YB, Wang AH, Yang XC, Takenaka S, Ozaki H, Nakamura M, Otsuka M, Tsurumi Y, Nolker G, Gutleben KJ, Ritscher G, Sinha AM, Muntean B, Heintze J, Vogt J, Brachmann J, Horstkotte D, Katsuyuki T, Katsuyuki T, McGrew F, Johnson E, Coppess M, Fan I, Li S, Zhiyu L, Zengzhang L, Xianbin L, Yuehui Y, Min L, Shu-long Z, Dong C, Zhi-tao Z, Xian-jing W, Ying-xue D, Shu-Long Z, Dong C, Zhi-Tao Z, Xian-Jing W, Ying-Xue D, Liu P, Guo JH, Zhang Z, Li J, Liu HG, Zhang HC, Zvereva V, Rillig A, Meyerfeldt U, Jung W, Wei L, Qi G, Zhang Q, Xia Y, Doi A, Satomi K, Nakajima I, Makimoto H, Yokoyama T, Yamada Y, Okamura H, Noda T, Aiba T, Shimizu W, Aihara N, Kamakura S, Li Z, Zhao QY, Huang CX, Doi A, Satomi K, Nakajima I, Makimoto H, Yokoyama T, Yamada Y, Okamura H, Noda T, Aiba T, Shimizu W, Aihara N, Kamakura S, Min-Seok C, Jeong-Wook P, Young-Woong H, Sung-Eun P, Jae-Sun U, Yong-Seog O, Woo-Seung S, Ji-Hoon K, Seong-Won J, Man-Young L, Tae-Ho R, Uhm JS, Oh YS, Choi MS, Park JW, Ha YW, Park SE, Jang SW, Shin WS, Kim JH, Lee MY, Rho TH, Nielsen JB, Olesen MS, Tango M, Haunso S, Holst AG, Svendsen JH, Poci D, Thogersen AM, Riahi S, Linde P, Edvardsson N, Khoo CW, Krishnamoorthy S, Dwivedi G, Balakrishnan B, Lim HS, Lip GYH, Khoo CW, Krishnamoorthy S, Dwivedi G, Balakrishnan B, Lim HS, Lip GYH, D'Ascia S, D'ascia C, Marino V, Chiariello M, Santulli G, Music L, Anderson K, Benzaquen BS, Saponieri C, Yassin H, Fridman V, Vasavada BC, Turitto G, El-Sherif N, Saponieri C, Prabhu H, Yassin H, Fridman V, Huang Y, Vasavada BC, Turitto G, El-Sherif N, Ortega MC, Sosa ESH, Ugalde AN, Al Jamil A, Abu Siddique M, Haque KMHSS, Suga C, Hirahara T, Sugawara Y, Ako J, Momomura SI, Mlynarski R, Mlynarska A, Ilczuk G, Mlynarski R, Mlynarska A, Wilczek J, Mlynarska A, Mlynarski R, Wilczek J, Mlynarska A, Mlynarski R, Wilczek J, Sosnowski M, Kohno R, Abe H, Nagatomo T, Oginosawa Y, Minamiguchi H, Otsuji Y, Kohno R, Abe H, Minamiguchi H, Oginosawa Y, Nagatomo T, Otsuji Y, Minamiguchi H, Abe H, Kohno R, Oginosawa Y, Otsuji Y, Ekinci S, Yesil M, Bayata S, Vurgun VK, Arikan E, Postaci N, Xiaoqing R, Jielin P, Shu Z, Liang M, Fangzheng W, Takahashi K, Tokano T, Nakazato Y, Doi S, Shiozawa T, Konishi H, Hiki M, Kato Y, Komatsu S, Takahashi S, Kubota N, Tamura H, Suwa S, Ohki M, Katsumata T, Kizu K, Bito F, Sumiyoshi M, Juntendo HD, Yamada Y, Okamura H, Nakajima I, Doi A, Makimoto H, Yukoyama T, Noda T, Satomi K, Aiba T, Shimizu W, Aihara N, Kamakura S, Perna F, Leo M, Leccisotti L, Casella M, Pelargonio G, Lago M, Bencardino G, Narducci ML, Russo E, Santangeli P, Giordano A, Bellocci F, Song T, Yang J, Huang C, Zhang J, Huang C, Wu P, Yang J, Song T, Chen Y, Fan X, Wang T, Wang X, Tang Y, Wu P, Huang CX, Zhang J, Fan XR, Chen YJ, Li XW, Yang J, Song T, Chiu CC, Buescher T, Obias-Manno D, Yoo CJ, Huh J, Ortega MC, Nakanishi H, Hirata A, Wada M, Kashiwase K, Okada M, Ueda Y, Su D, Niu XL, Song AQ, Kohno R, Abe H, Minamiguchi H, Oginosawa Y, Nagatomo T, Otsuji Y, Fujii S, Yambe Y, Shiiba K, Sakakibara M, Takenaka S, Watanabe A, Wada T, Koide Y, Ikeda M, Toda H, Hashimoto K, Terasaka R, Nakahama M, Wada T, Watanabe A, Koide Y, Ikeda M, Toda H, Hashimoto K, Terasaka R, Nakahama M, Okada Y, Mizuno H, Ide H, Ueno T, Kogaki S, Ozono K, Nanto S, Statescu C, Bercea R, Sascau RA, Georgescu CA, Ortega MC, Athanas E, Ortega MC, Athanas E, Mironov NY, Bakalov SA, Jarova EA, Rodionova ES, Mironova NA, Kim J, Ahn MS, Han DC, Choo JTL, Chen CK, Tan TH, Ong KK, Kam R, Curnis A, Bontempi L, Coppola G, Cerini M, Vassanelli F, Lipari A, Gennaro F, Pagnoni C, Ashofair N, Cas LD, Gourineni V, Wong KL, Davoudi R, Hamid N, Chong D, Yew TB, Liew R, Keong CC, Siong TW, Fuke E, Shimizu H, Kimura S, Hao K, Watanabe R, Seo JB, Chung WY, Kim SH, Kim MA, Zo ZH, Krishinan S, Skuratova NA, Belyaeva LM, Bae MH, Lee JH, Lee HS, Yang DH, Park HS, Cho Y, Chae SC, Jun JE, Rychkova LV, Dolgikh VV, Zurbanova LV, Zurbanov AV, Aleksanyan A, Matevosyan A, Podosyan G, Zelveian P, Aleksanyan A, Podosyan G, Matevosyan A, Zelveian P, Choi HO, Nam GB, Kim YR, Kim KH, Kim SH, Choi KJ, Kim YH, Pakpahan HAP, Wei D, Qizhu T, Xiaofei Y, Kai G, Siting F, Ji H, Sato A, Tanabe Y, Hayashi Y, Yoshida T, Ito E, Chinushi M, Hasegawa K, Yagihara N, Iijima K, Izumi D, Watanabe H, Furushima H, Aizawa Y, Dong YX, Dong YX, Burnett JC, Chen HH, Sandberg S, Zhang Y, Chen PS, Cha YM, Mlynarski R, Mlynarska A, Wilczek J, Sosnowski M, Zhou XH, Tang BP, Li JX, Zhang Y, Li YD, Zhang JH, Arsenos P, Gatzoulis K, Gialernios T, Dilaveris P, Sideris S, Archontakis S, Tsiachris D, Christodoulos S, Feng Z, Baogui S, Li L, Ming L, Bai R, Di Biase L, Mohanty P, Hesselson AB, De Ruvo E, Gallagher PL, Minati M, Natale LCA, Tomassoni GF, Gan T, Tang B, Xu G, Li J, Zhang Y, Zhou X, Zhang Y, Hosoda J, Ishikawa T, Matsushita K, Matsumoto K, Kimura Y, Miyamoto M, Sugano T, Ishigami T, Uchino K, Kimura K, Umemura S, Nakajima I, Noda T, Shimizu W, Yokoyama T, Makimoto H, Doi A, Yamada Y, Okamura H, Satomi K, Aiba T, Aihara N, Kamakura S, Nakajima I, Noda T, Shimizu W, Kurita T, Yokoyama T, Makimoto H, Doi A, Yamada Y, Okamura H, Satomi K, Aiba T, Aihara N, Kamakura S, Wang T, Huang CX, Wang T, Huang CX, Ruan L, Zhang C, Cai S, Bai R, Liu N, Ruan Y, Quan X, Kang JK, Kim NY, Park SH, Lee JH, Park HS, Cho Y, Chae SC, Jun JE, Park WH, Sapelnikov OV, Latypov RS, Grishin IR, Mareev YV, Saidova MA, Akchurin RS, Arsenos P, Gatzoulis K, Manis G, Dilaveris P, Archontakis S, Tsiachris D, Mytas D, Papafanis T, Papavasileiou MV, Stefanadis C, Ren LN, Fang XH, Wang YQ, Qi GX, Zeng QX, Zheng ZT, Zhong JQ, Wang YL, Liu HZ, Liu DL, Meng XL, Li JS, Zhang Y, Liu HZ, Zhong JQ, Zeng QX, Liu DL, Meng XL, Li JS, Su GY, Wang J, Zhang Y, Liu HZ, Zhong JQ, Zeng QX, Wang YL, Liu DL, Meng XL, Li JS, Su GY, Zhang Y, Li JS, Zhong JQ, Zeng QX, Liu HZ, Su GY, Zhang Y, Li JS, Zhong JQ, Zeng QX, Liu HZ, Meng XL, Liu DL, Su GY, Zhang Y, Li JS, Zhong JQ, Zeng QX, Liu HZ, Meng XL, Liu DL, Su GY, Zhang Y, Nicolson WB, Kundu S, Tyagi N, Meatcher PDS, Yusuf S, Jeilan M, Stafford PJ, Sandilands AJ, Loke I, Ng GA, Nicolson WB, Kundu S, Tyagi N, Meatcher PDS, Yusuf S, Jeilan M, Stafford PJ, Sandilands AJ, Loke I, Ng GA, Solak Y, Gul EE, Atalay H, Abdulhalikov T, Kayrak M, Turk S, Kang JK, Kim NY, Park SH, Lee JH, Park HS, Cho Y, Chae SC, Jun JE, Park WH, Belyaeva LM, Skuratova NA, Pogodina AV, Dolgikh VV, Valjavskaja OV, Zurbanov AV, Chen YX, Luo NS, Wang JF, Zhang S, Ishimaru S, Miyakawa M, Kakinoki R, Tadokoro M, Kitani S, Sugaya T, Nishimura K, Igarashi T, Okabayashi H, Furuya J, Igarashi Y, Igarashi K, Su T, Winlaw D, Chard R, Nicholson I, Sholler G, Lau K, Sun Q, Cheng KP, Cheng R, Hua W, Pu JL, Zhang S, Lim CP, Chan LL, Teo LW, Kwok BWK, Sim DKL, Ching CK, Lim CP, Chan LL, Teo LW, Kwok BWK, Sim DKL, Ching CK, Curnis A, Bontempi L, Cerini M, Lipari A, Vassanelli F, Pagnoni C, Ashofair N, Moneghini D, Cestari R, Cas LD, Al Fagih A, Al Shurafa H, Al Ghamdi S, Dagriri K, Al Khadra A, Iijima K, Chinushi M, Hasegawa K, Yagihara N, Sato A, Izumi D, Watanabe H, Furushima H, Aizawa Y, Furushima H, Chinushi M, Iijima K, Izumi D, Hasegawa K, Yagihara N, Watanabe H, Sato A, Aizawa Y, Agacdiken A, Yalug I, Vural A, Celikyurt U, Ural D, Aker T, Agacdiken A, Yalug I, Vural A, Celikyurt U, Ural D, Aker T, Heintze J, Schloss E, Auricchio A, Zeng C, Sterns L, Farooqi F, Kamdar R, Adhya S, Bayne S, Jackson T, Pollock L, Sterns L, Gall N, Murgatroyd F, Guo Y, Wang Y, Yang T, Zhu P, Liu H, Zhao Y, Zhang L, Gao W, Gao M. Poster presentation. Europace 2011. [DOI: 10.1093/europace/euq492] [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] Open
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Igarashi K, Kajino M, Shirai M, Oki J, Seki K. [A case of acute disseminated encephalomyelitis associated with Epstein-Barr virus infection]. No To Hattatsu 2011; 43:59-61. [PMID: 21400935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Yoshimura N, Fujita H, Muranaka H, Igarashi K, Shioya M, Goto Y, Nonaka I, Koide N. P4.63 MELAS presenting marked brain atrophy and hypertrophic cardiomyopathy: report of an autopsy case. Neuromuscul Disord 2010. [DOI: 10.1016/j.nmd.2010.07.259] [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]
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Igarashi K, Shibuya S, Sano H, Takahashi M, Hasegawa M, Ichimura S, Satomi K, Ohki Y. P31-17 Analysis of the target-reaching movement in patients with cervical myelopathy. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61184-4] [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]
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Chen YL, Chu JH, Analytis JG, Liu ZK, Igarashi K, Kuo HH, Qi XL, Mo SK, Moore RG, Lu DH, Hashimoto M, Sasagawa T, Zhang SC, Fisher IR, Hussain Z, Shen ZX. Massive Dirac Fermion on the Surface of a Magnetically Doped Topological Insulator. Science 2010; 329:659-62. [DOI: 10.1126/science.1189924] [Citation(s) in RCA: 970] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Yoshinari O, Igarashi K. Anti-Diabetic Effect of Trigonelline and Nicotinic Acid, on KK-Ay Mice. Curr Med Chem 2010; 17:2196-202. [DOI: 10.2174/092986710791299902] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 04/23/2010] [Indexed: 11/22/2022]
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Hirabayashi Y, Yoon B, Igarashi K, Kodama Y, Sekita K, Kaneko T, Kanno J, Inoue T. Strain differences of the effect of benzene exposure: Microarray study of the bone marrow in C57BL/6 and C3H/He mice. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.597] [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]
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Hirai M, Minematsu H, Hiramatsu Y, Kitagawa H, Otani T, Iwashita S, Kudoh T, Chen L, Li Y, Okada M, Salomon D, Igarashi K, Chikuma M, Seno M. Novel and simple loading procedure of cisplatin into liposomes and targeting tumor endothelial cells. Int J Pharm 2010; 391:274-83. [DOI: 10.1016/j.ijpharm.2010.02.030] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 01/01/2010] [Accepted: 02/27/2010] [Indexed: 02/06/2023]
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Harusato A, Naito Y, Takagi T, Yamada S, Mizushima K, Hirai Y, Horie R, Inoue K, Fukumoto K, Hirata I, Omatsu T, Kishimoto E, Uchiyama K, Handa O, Ishikawa T, Kokura S, Ichikawa H, Muto A, Igarashi K, Yoshikawa T. Inhibition of Bach1 ameliorates indomethacin-induced intestinal injury in mice. J Physiol Pharmacol 2009; 60 Suppl 7:149-154. [PMID: 20388958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Accepted: 12/11/2009] [Indexed: 05/29/2023]
Abstract
BTB and CNC homolog 1 (Bach1) is a transcriptional repressor of heme oxygenase-1 (HO-1). It plays an important role in the feedback regulation of HO-1 expression, which protects cells from various insults including oxidative stress and inflammatory cytokines. However, the role of Bach1 in intestinal inflammation remains unclear. In this study, the role of Bach1 in intestinal mucosal injury was elucidated using 8-week-old female C57BL/6 (wild-type) and homozygous Bach1-deficient C57BL/6 mice. Intestinal mucosal injuries induced by a single subcutaneous administration of indomethacin were evaluated macroscopically, histologically, and biochemically. Mucosal protein content and chemokine mRNA levels were determined by real-time PCR. Our results showed that the indomethacin-induced intestinal injury was remarkably improved in Bach1-deficient mice. Histological examination showed that the area of injured lesion was decreased in Bach1-deficient mice compared to wild-type mice. Administration of indomethacin induced expression of inflammatory chemokines such as KC, MIP1alpha and MCP1, which was suppressed in Bach1-deficient mice. Myeloperoxidase activity in the intestinal mucosa was also significantly decreased in Bach1-deficient mice. Additionally, Bach1 deficiency enhanced immunopositivity of HO-1 in the intestinal mucosa after indomethacin administration. Disruption of the Bach1 gene thus caused inhibition of mucosal injury, indicating that inhibition of Bach1 may be a novel therapeutic strategy for treating indomethacin-induced intestinal injury.
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Affiliation(s)
- A Harusato
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Suzuki K, Igarashi K, Sekine H, Nozawa E, Ishii N. UP-2.014: Present Aspects and Trends of Acute Simple Cystitis in Japanese Females: Relationship Between Mean Monthly Temperature and Disease Onset. Urology 2009. [DOI: 10.1016/j.urology.2009.07.233] [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: 10/20/2022]
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Igarashi K, Sagara K, Egawa J. No. 5�Vol 42, No. 4, pp. 313-318, 2008�A New Water-in-Powder Technology A Novel Structure for Creating Unique Cosmetic �Products. Int J Cosmet Sci 2009. [DOI: 10.1111/j.1468-2494.2009.00518_4.x] [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]
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Abstract
During orthodontic tooth movement, the activation of the vascular system in the compressed periodontal ligament (PDL) is an indispensable process in tissue remodeling. We hypothesized that compressive force would induce angiogenesis of PDL through the production of vascular endothelial growth factor (VEGF). We examined the localization of VEGF in rat periodontal tissues during experimental tooth movement in vivo, and the effects of continuous compressive force on VEGF production and angiogenic activity in human PDL cells in vitro. PDL cells adjacent to hyalinized tissue and alveolar bone on the compressive side showed marked VEGF immunoreactivity. VEGF mRNA expression and production in PDL cells increased, and conditioned medium stimulated tube formation. These results indicate that continuous compressive force enhances VEGF production and angiogenic activity in PDL cells, which may contribute to periodontal remodeling, including angiogenesis, during orthodontic tooth movement.
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Affiliation(s)
- A Miyagawa
- Division of Oral Dysfunction Science, Department of Oral Health and Development Sciences, Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
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Takahashi H, Miya S, Igarashi K, Suda T, Kuramoto S, Kimura B. Biofilm formation ability of Listeria monocytogenes isolates from raw ready-to-eat seafood. J Food Prot 2009; 72:1476-80. [PMID: 19681273 DOI: 10.4315/0362-028x-72.7.1476] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Listeria monocytogenes is of great concern as a foodborne pathogen. Many ready-to-eat foods are widely contaminated with this organism and have caused listeriosis outbreaks and sporadic cases in many countries. In Japan, there is a high incidence of L. monocytogenes contamination, specifically in raw ready-to-eat seafood. Identical L. monocytogenes subtypes have been isolated repeatedly from samples of food manufactured at a given store or processing plant, and researchers suspected that certain L. monocytogenes isolates have formed biofilms at these sites. A microtiter plate biofilm formation assay was conducted, and all raw ready-to-eat seafood isolates tested were able to form biofilms to various degrees. Biofilm formation by L. monocytogenes isolates of lineage I was significantly greater (P = 0.000) than that by isolates of lineage II. However, isolates of clonal lineages formed different levels of biofilms, indicating that the ability to form a biofilm is affected positively or negatively by environmental factors.
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Affiliation(s)
- Hajime Takahashi
- Department of Food Science and Technology, Faculty of Marine Science, Tokyo University of Marine Science and Technology, Minato-ku, Tokyo 108-8477, Japan
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Igarashi K, Sagara K, Egawa J. A new water-in-powder technology: a novel structure for creating unique cosmetic products. Int J Cosmet Sci 2009. [DOI: 10.1111/j.1468-2494.2008.00451_4.x] [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]
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Horimoto M, Igarashi K, Takenaka T, Inoue H, Yamazaki K, Sakuragi H. Acetylcholine- and ergonovine-induced coronary microvascular spasm reflected by increased coronary vascular resistance and myocardial lactate production. Clin Cardiol 2009; 23:221-5. [PMID: 10761816 PMCID: PMC6655165 DOI: 10.1002/clc.4960230320] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Diagnosis of coronary microvascular spasm remains largely speculative because it has been mostly based on chest pain and electrocardiographic ST-segment shift with slow filling of contrast medium into the coronary artery. A patient with resting chest pain and normal coronary angiograms underwent provocative tests with intracoronary acetylcholine (ACh) and ergonovine. During the tests, coronary diameter and flow velocity in the left anterior descending (LAD) coronary artery were measured with quantitative coronary angiography and intracoronary Doppler guide wire, respectively. Vascular resistance of the LAD and lactate production were determined separately. With injections of 100 microg of ACh and 20 microg of ergonovine, chest pain occurred with ST-segment elevation in the precordial leads in the absence of epicardial coronary spasm. Coronary vascular resistance increased by 2.2- and 1.6-fold of the baseline value with ACh and ergonovine, respectively. Myocardial lactate production was noted during the ST-segment elevation. Coronary microvascular spasm was verified by the increment in coronary vascular resistance and myocardial lactate production with concomitant ST-segment elevation in the presence of normal coronary angiograms.
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Affiliation(s)
- M Horimoto
- Division of Cardiology, Sapporo National Hospital, Japan
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Asai R, Nishino T, Matsumura T, Okamoto K, Igarashi K, Pai EF, Nishino T. Two Mutations Convert Mammalian Xanthine Oxidoreductase to Highly Superoxide-productive Xanthine Oxidase. J Biochem 2008. [DOI: 10.1093/jb/mvn111] [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: 11/14/2022] Open
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Sanosaka T, Namihira M, Asano H, Kohyama J, Aisaki K, Igarashi K, Kanno J, Nakashima K. Identification of genes that restrict astrocyte differentiation of midgestational neural precursor cells. Neuroscience 2008; 155:780-8. [PMID: 18640244 DOI: 10.1016/j.neuroscience.2008.06.039] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 05/22/2008] [Accepted: 06/13/2008] [Indexed: 01/21/2023]
Abstract
During development of the mammalian CNS, neurons and glial cells (astrocytes and oligodendrocytes) are generated from common neural precursor cells (NPCs). However, neurogenesis precedes gliogenesis, which normally commences at later stages of fetal telencephalic development. Astrocyte differentiation of mouse NPCs at embryonic day (E) 14.5 (relatively late gestation) is induced by activation of the transcription factor signal transducer and activator of transcription (STAT) 3, whereas at E11.5 (mid-gestation) NPCs do not differentiate into astrocytes even when stimulated by STAT3-activating cytokines such as leukemia inhibitory factor (LIF). This can be explained in part by the fact that astrocyte-specific gene promoters are highly methylated in NPCs at E11.5, but other mechanisms are also likely to play a role. We therefore sought to identify genes involved in the inhibition of astrocyte differentiation of NPCs at midgestation. We first examined gene expression profiles in E11.5 and E14.5 NPCs, using Affymetrix GeneChip analysis, applying the Percellome method to normalize gene expression level. We then conducted in situ hybridization analysis for selected genes found to be highly expressed in NPCs at midgestation. Among these genes, we found that N-myc and high mobility group AT-hook 2 (Hmga2) were highly expressed in the E11.5 but not the E14.5 ventricular zone of mouse brain, where NPCs reside. Transduction of N-myc and Hmga2 by retroviruses into E14.5 NPCs, which normally differentiate into astrocytes in response to LIF, resulted in suppression of astrocyte differentiation. However, sustained expression of N-myc and Hmga2 in E11.5 NPCs failed to maintain the hypermethylated status of an astrocyte-specific gene promoter. Taken together, our data suggest that astrocyte differentiation of NPCs is regulated not only by DNA methylation but also by genes whose expression is controlled spatio-temporally during brain development.
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Affiliation(s)
- T Sanosaka
- Laboratory of Molecular Neuroscience, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara 630-0101, Japan
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Ochiai K, Muto A, Tanaka H, Takahashi S, Igarashi K. Regulation of the plasma cell transcription factor Blimp-1 gene by Bach2 and Bcl6. Int Immunol 2008; 20:453-60. [DOI: 10.1093/intimm/dxn005] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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