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Ji S, Rizk MA, Galon EM, El-Alfy ES, Mizukawa Y, Kojima M, Ikegami-Kawai M, Kaya M, Liu M, Itoh I, Xuan X. Anti-babesial activity of a series of 6,7-dimethoxyquinazoline-2,4-diamines (DMQDAs). Acta Trop 2024; 249:107069. [PMID: 37952866 DOI: 10.1016/j.actatropica.2023.107069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/14/2023]
Abstract
Diminazene aceturate (DA), imidocarb dipropionate (ID), atovaquone (ATO), azithromycin (AZI), clindamycin, and quinine have been used to treat animal and human babesiosis for many years, despite their negative effects and rising indications of resistance. Thus, finding anti-babesial compounds that can either treat the infection or lower the dose of drugs given has been a primary objective. Quinazolines are one of the most important nitrogen heterocycles, with a wide range of pharmacological activities including analgesic, anti-inflammatory, sedative-hypnotic, anti-histaminic, anti-cancer, and anti-protozoan properties. The present study investigated the anti-babesial activities of twenty 6,7-dimethoxyquinazoline-2,4-diamines on Babesia spp. One candidate, 6,7-dimethoxy-N4-ethylisopropyl-N2-ethyl(pyridin-4-yl)quinazoline-2,4-diamine (SHG02), showed potent inhibition on Babesia gibsoni in vitro, as well as on B. microti and B. rodhaini in mice. Our findings indicate that the candidate compound SHG02 is promising for further development of anti-babesial drugs and provides a new structure to be explored for developing anti-Babesia therapeutics.
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Affiliation(s)
- Shengwei Ji
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Mohamed Abdo Rizk
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan; Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Eloiza May Galon
- College of Veterinary Medicine and Biomedical Sciences, Cavite State University, Indang, Cavite 4122, Philippines
| | - El-Sayed El-Alfy
- Parasitology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Yuki Mizukawa
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Masayoshi Kojima
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Mayumi Ikegami-Kawai
- Faculty of Pharmaceutical Science, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan
| | - Motohiro Kaya
- Center for Industry-University Collaboration, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Mingming Liu
- School of Basic Medicine, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Isamu Itoh
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Xuenan Xuan
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
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2
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Yoshida A, Kitayama Y, Hayakawa N, Mizukawa Y, Nishimura Y, Takano E, Sunayama H, Takeuchi T. Biocompatible polymer-modified gold nanocomposites of different shapes as radiation sensitizers. Biomater Sci 2022; 10:2665-2672. [PMID: 35420601 DOI: 10.1039/d2bm00174h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Radiation therapy is a powerful approach for cancer treatment due to its low invasiveness. The development of radiation sensitizers is of great importance as they assist in providing radiation therapy at a low dose. In this study, poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC)-modified gold nanocomposites of different shapes were created using the grafting-to approach to serve as a novel radiation sensitizer with high cellular uptake. The effect of the shape of the nanocomposite on cellular uptake by the breast cancer cell line MCF-7 was also investigated. The PMPC-modified gold nanostars showed the highest cellular uptake compared to the other gold nanocomposites (spheres and rods), whereas cell cytotoxicity was negligible among all candidates. Furthermore, the therapeutic effect of radiation of PMPC-modified nanostars was the highest among all the gold nanocomposites. These results clearly indicate that the shape of the gold nanocomposite is an important parameter for cellular uptake and radiation sensitizing effects in breast cancer cells.
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Affiliation(s)
- Aoi Yoshida
- Graduate School of Engineering, Kobe University, Nada-ku, Kobe 657-8501, Japan.
| | - Yukiya Kitayama
- Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan.
| | - Natsuki Hayakawa
- Graduate School of Engineering, Kobe University, Nada-ku, Kobe 657-8501, Japan.
| | - Yuki Mizukawa
- Graduate School of Engineering, Kobe University, Nada-ku, Kobe 657-8501, Japan.
| | - Yuya Nishimura
- Graduate School of Science, Technology and Innovation, Kobe University, Nada-ku, Kobe 657-8501, Japan
| | - Eri Takano
- Graduate School of Engineering, Kobe University, Nada-ku, Kobe 657-8501, Japan.
| | - Hirobumi Sunayama
- Graduate School of Engineering, Kobe University, Nada-ku, Kobe 657-8501, Japan.
| | - Toshifumi Takeuchi
- Graduate School of Engineering, Kobe University, Nada-ku, Kobe 657-8501, Japan. .,Center for Advanced Medical Engineering Research & Development (CAMED), Kobe University, Chuo-ku, Kobe 650-0047, Japan
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3
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Takei S, Hama N, Mizukawa Y, Takahashi H, Miyagawa F, Asada H, Abe R. Purpura as an indicator of severity in drug-induced hypersensitivity syndrome/drug reaction with eosinophilia and systemic symptoms: evidence from a 49-case series. J Eur Acad Dermatol Venereol 2021; 36:e310-e313. [PMID: 34839562 DOI: 10.1111/jdv.17838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/23/2021] [Accepted: 11/26/2021] [Indexed: 11/28/2022]
Affiliation(s)
- S Takei
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - N Hama
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - H Takahashi
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - F Miyagawa
- Department of Dermatology, Nara Medical University School of Medicine, Nara, Japan
| | - H Asada
- Department of Dermatology, Nara Medical University School of Medicine, Nara, Japan
| | - R Abe
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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4
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Mizukawa Y, Ikegami-Kawai M, Horiuchi M, Kaiser M, Kojima M, Sakanoue S, Miyagi S, Nanga Chick C, Togashi H, Tsubuki M, Ihara M, Usuki T, Itoh I. Quest for a potent antimalarial drug lead: Synthesis and evaluation of 6,7-dimethoxyquinazoline-2,4-diamines. Bioorg Med Chem 2021; 33:116018. [PMID: 33524940 DOI: 10.1016/j.bmc.2021.116018] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 10/22/2022]
Abstract
Quinazolines have long been known to exert varied pharmacologic activities that make them suitable for use in treating hypertension, viral infections, tumors, and malaria. Since 2014, we have synthesized approximately 150 different 6,7-dimethoxyquinazoline-2,4-diamines and evaluated their antimalarial activity via structure-activity relationship studies. Here, we summarize the results and report the discovery of 6,7-dimethoxy-N4-(1-phenylethyl)-2-(pyrrolidin-1-yl)quinazolin-4-amine (20, SSJ-717), which exhibits high antimalarial activity as a promising antimalarial drug lead.
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Affiliation(s)
- Yuki Mizukawa
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Mayumi Ikegami-Kawai
- Faculty of Pharmaceutical Science, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan.
| | - Masako Horiuchi
- Faculty of Pharmaceutical Science, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan
| | - Marcel Kaiser
- Medical Parasitology & Infection Biology, Swiss Tropical & Public Health Institute, Socinstrasse 57, 4000 Basel CH-4002, Switzerland; University of Basel, Petersplatz 1, 4003 Basel CH-4003, Switzerland
| | - Masayoshi Kojima
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Seiki Sakanoue
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Seiya Miyagi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda-ku, Tokyo 102-8554, Japan
| | - Christian Nanga Chick
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda-ku, Tokyo 102-8554, Japan
| | - Hiroyuki Togashi
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan
| | - Masayoshi Tsubuki
- Faculty of Pharmaceutical Science, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan
| | - Masataka Ihara
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan; Faculty of Pharmaceutical Science, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan
| | - Toyonobu Usuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Isamu Itoh
- Synstar Japan Co., Ltd., 2-9-46 Sakaecho, Odawara, Kanagawa 250-0011, Japan.
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5
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Shiohara T, Mizukawa Y. Comment on 'Drug reaction with eosinophilia and systemic symptoms syndrome in a patient with COVID-19': involvement of herpesvirus reactivations and adverse drug reactions in diverse cutaneous manifestations and overall disease severity of COVID-19. J Eur Acad Dermatol Venereol 2020; 35:e98-e100. [PMID: 32970885 PMCID: PMC7537195 DOI: 10.1111/jdv.16959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- T Shiohara
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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6
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Hayakawa J, Takakura H, Mizukawa Y, Shiohara T. COVID-19-related cutaneous manifestations associated with multiple drug sensitization as shown by lymphocyte transformation test. J Eur Acad Dermatol Venereol 2020; 34:e779-e781. [PMID: 32810920 PMCID: PMC7461526 DOI: 10.1111/jdv.16878] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/30/2020] [Accepted: 08/11/2020] [Indexed: 11/29/2022]
Affiliation(s)
- J Hayakawa
- Division of Dermatology, Kosei Hospital, Tokyo, Japan
| | - H Takakura
- Division of Respiratory medicine, Kosei Hospital, Tokyo, Japan
| | - Y Mizukawa
- Division of Dermatology, Kosei Hospital, Tokyo, Japan.,Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - T Shiohara
- Division of Dermatology, Kosei Hospital, Tokyo, Japan.,Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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7
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Cheubong C, Yoshida A, Mizukawa Y, Hayakawa N, Takai M, Morishita T, Kitayama Y, Sunayama H, Takeuchi T. Molecularly Imprinted Nanogels Capable of Porcine Serum Albumin Detection in Raw Meat Extract for Halal Food Control. Anal Chem 2020; 92:6401-6407. [PMID: 32282196 DOI: 10.1021/acs.analchem.9b05499] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Accurate, simple, and valuable analytical methods for detection of food contamination are rapidly expanding to evaluate the validity of food product quality because of ethnic considerations and food safety. Herein molecularly imprinted nanogels (MIP-NGs), capable of porcine serum albumin (PSA) recognition, were prepared as artificial molecular recognition elements. The MIP-NGs were immobilized on a quartz crystal microbalance (QCM) sensor for detection of pork contamination in real beef extract samples. The MIP-NGs-based QCM sensor showed high affinity and excellent selectivity toward PSA compared to reference serum albumins from five different animals. The high PSA specificity of MIP-NGs led to the detection of pork contamination with a detection limit of 1% (v/v) in real beef extract samples. We believe the artificial molecular recognition materials prepared by molecular imprinting are a promising candidate for halal food control.
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Affiliation(s)
- Chehasan Cheubong
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan.,Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathumthani 12110, Thailand
| | - Aoi Yoshida
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Yuki Mizukawa
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Natsuki Hayakawa
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Minako Takai
- Graduate School of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan
| | - Takahiro Morishita
- 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.,Medical Device Fabrication Engineering Center, Graduate School of Engineering, Kobe University, Kobe, 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.,Medical Device Fabrication Engineering Center, Graduate School of Engineering, Kobe University, Kobe, Japan
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8
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Horie C, Mizukawa Y, Yamazaki Y, Shiohara T. Varicella zoster virus as a possible trigger for the development of pityriasis lichenoides et varioliformis acuta: retrospective analysis of our institutional cases. Clin Exp Dermatol 2018; 43:703-707. [PMID: 29797478 DOI: 10.1111/ced.13549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2017] [Indexed: 11/30/2022]
Abstract
Although numerous infective agents, including varicella zoster virus (VZV), have been described in association with pityriasis lichenoides et varioliformis acuta (PLEVA) and pityriasis lichenoides chronica (PLC), none has been identified consistently in these lesions. We sought to immunohistochemically identify VZV glycoprotein (g)E antigens in the vascular endothelium in PLEVA and PLC lesions, based on our previous observation that gE was detected in the vascular endothelium and eccrine unit up until 2 months and 2.5, respectively, years after herpes zoster (HZ) infection. In five of the six cases of PLEVA, VZV gE was identified in the endothelial cells and eccrine epithelium, as observed in HZ lesions, whereas VZV gE was detected in only one of seven patients with PLC. None of the patients with PLEVA who had VZV gE-positive vascular endothelial cells had experienced previous episodes of HZ. VZV may be one of the aetiological agents for PLEVA while other aetiological factors could exist in PLC.
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Affiliation(s)
- C Horie
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Y Yamazaki
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - T Shiohara
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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9
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Shimoda Y, Sato Y, Hayashida Y, Yamazaki Y, Mizukawa Y, Nakajima K, Shiohara T, Aoyama Y. Lichen amyloidosus as a sweat gland/duct-related disorder: resolution associated with restoration of sweating disturbance. Br J Dermatol 2017; 176:1308-1315. [DOI: 10.1111/bjd.15060] [Citation(s) in RCA: 14] [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] [Accepted: 09/12/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Shimoda
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Sato
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Hayashida
- Dermatology; Kawasaki Medical School; General Medical Center; Okayama Japan
| | - Y. Yamazaki
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Mizukawa
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - K. Nakajima
- Department of Dermatology; Kochi University School of Medicine; Nankoku Japan
| | - T. Shiohara
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Aoyama
- Dermatology; Kawasaki Medical School; General Medical Center; Okayama Japan
- Department of Dermatology; Kawasaki Medical School; Kurashiki Japan
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10
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Kurata M, Mizukawa Y, Aoyama Y, Shiohara T. Herpes simplex virus reactivation as a trigger of mucous lesions in pemphigus vulgaris. Br J Dermatol 2014; 171:554-60. [DOI: 10.1111/bjd.12961] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 12/31/2022]
Affiliation(s)
- M. Kurata
- Department of Dermatology Kyorin University School of Medicine Shinkawa, 6‐20‐2 Mitaka Tokyo 181‐8611 Japan
| | - Y. Mizukawa
- Department of Dermatology Kyorin University School of Medicine Shinkawa, 6‐20‐2 Mitaka Tokyo 181‐8611 Japan
| | - Y. Aoyama
- Department of Dermatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama 700‐8558 Japan
| | - T. Shiohara
- Department of Dermatology Kyorin University School of Medicine Shinkawa, 6‐20‐2 Mitaka Tokyo 181‐8611 Japan
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11
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Ishida T, Kano Y, Mizukawa Y, Shiohara T. The dynamics of herpesvirus reactivations during and after severe drug eruptions: their relation to the clinical phenotype and therapeutic outcome. Allergy 2014; 69:798-805. [PMID: 24749495 PMCID: PMC4112819 DOI: 10.1111/all.12410] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 12/05/2022]
Abstract
Background Drug‐induced hypersensitivity syndrome/drug rash with eosinophilia and systemic symptoms (DIHS/DRESS) and Stevens–Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) represent contrasting poles of severe drug eruptions, and sequential reactivations of several herpesviruses have exclusively been demonstrated in the former. No previous studies, however, were extended beyond the acute stage. We sought to investigate whether herpesvirus reactivations could also be observed in SJS/TEN and beyond the acute stage of both diseases. Methods Patients with SJS (n = 16), SJS/TEN overlap (n = 2), TEN (n = 10), and DIHS/DRESS (n = 34) were enrolled. We performed a retrospective analysis of Epstein–Barr virus (EBV), human herpesvirus 6 (HHV‐6), and cytomegalovirus (CMV) DNA loads sequentially determined by real‐time polymerase chain reaction during a 2‐year period after onset. Results Persistently increased EBV loads were detected in SJS during the acute stage and long after resolution, but not in others. In contrast, high HHV‐6 loads were exclusively detected in DIHS/DRESS during the acute stage. The dynamics of herpesvirus reactivation varied in DIHS/DRESS according to the use of systemic corticosteroids: While EBV loads were higher in patients not receiving systemic corticosteroids, CMV and HHV‐6 loads were higher in those receiving them. Conclusions Distinct patterns of herpesvirus reactivation according to the pathological phenotype and to the use of systemic corticosteroids were observed during the acute stage and follow‐up period, which may contribute, at least in part, to the difference in the clinical manifestations and long‐term outcomes. Systemic corticosteroids during the acute stage may improve the outcomes in DIHS/DRESS.
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Affiliation(s)
- T. Ishida
- Department of Dermatology Kyorin University School of Medicine Mitaka Tokyo Japan
| | - Y. Kano
- Department of Dermatology Kyorin University School of Medicine Mitaka Tokyo Japan
| | - Y. Mizukawa
- Department of Dermatology Kyorin University School of Medicine Mitaka Tokyo Japan
| | - T. Shiohara
- Department of Dermatology Kyorin University School of Medicine Mitaka Tokyo Japan
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12
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Mizukawa Y, Ge JF, Bakar Md A, Itoh I, Scheurer C, Wittlin S, Brun R, Matsuoka H, Ihara M. Novel synthetic route for antimalarial benzo[a]phenoxazine derivative SSJ-183 and two active metabolites. Bioorg Med Chem 2014; 22:3749-52. [PMID: 24856305 DOI: 10.1016/j.bmc.2014.04.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 04/30/2014] [Accepted: 04/30/2014] [Indexed: 11/16/2022]
Abstract
A productive synthesis of benzo[a]phenoxazine derivative SSJ-183 (1), a promising lead for antimalarial agents, was developed using a one pot procedure. Furthermore, N-deethylated metabolite 3 and bis-N,N-deethylated metabolite 4 were synthesized by the application of the method. The metabolites 3 and 4 showed comparable and ∼2-fold increased activities against drug-sensitive and drug-resistant Plasmodium falciparum parasites.
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Affiliation(s)
- Yuki Mizukawa
- Drug Discovery Science Research Center, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan; Synstar Japan Co., Ltd, Orbic Bldg 3F, 2-9-46 Sakaecho, Odawara 250-0011, Japan
| | - Jian-Feng Ge
- Drug Discovery Science Research Center, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215006, China
| | - Abu Bakar Md
- Drug Discovery Science Research Center, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan; Center for Advanced Research in Sciences, University of Dhaka, Bangladesh
| | - Isamu Itoh
- Drug Discovery Science Research Center, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan; Synstar Japan Co., Ltd, Orbic Bldg 3F, 2-9-46 Sakaecho, Odawara 250-0011, Japan
| | - Christian Scheurer
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Reto Brun
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Hiroyuki Matsuoka
- School of Medicine, Department of Infection and Immunity, Division of Medical Zoology, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi 329-0498, Japan
| | - Masataka Ihara
- Drug Discovery Science Research Center, Hoshi University, 2-4-41 Ebara, Shinagawa, Tokyo 142-8501, Japan.
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13
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Mizukawa Y, Horie C, Yamazaki Y, Shiohara T. Detection of Varicella-Zoster Virus Antigens in Lesional Skin of Zosteriform Lichen Planus but Not in That of Linear Lichen Planus. Dermatology 2012; 225:22-6. [DOI: 10.1159/000339771] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 05/24/2012] [Indexed: 11/19/2022] Open
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14
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Horie C, Mizukawa Y, Yamazaki Y, Shiohara T. Varicella‐zoster virus antigen expression of eccrine gland and duct epithelium in herpes zoster lesions. Br J Dermatol 2011; 165:802-7. [DOI: 10.1111/j.1365-2133.2011.10462.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- C. Horie
- Department of Dermatology, Kyorin University School of Medicine, Shinkawa, 6‐20‐2, Mitaka, Tokyo 181‐8611, Japan
| | - Y. Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Shinkawa, 6‐20‐2, Mitaka, Tokyo 181‐8611, Japan
| | - Y. Yamazaki
- Department of Dermatology, Kyorin University School of Medicine, Shinkawa, 6‐20‐2, Mitaka, Tokyo 181‐8611, Japan
| | - T. Shiohara
- Department of Dermatology, Kyorin University School of Medicine, Shinkawa, 6‐20‐2, Mitaka, Tokyo 181‐8611, Japan
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Mizukawa Y, Shiohara T. Nonpigmenting fixed drug eruption as a possible abortive variant of toxic epidermal necrolysis: immunohistochemical and serum cytokine analyses. Clin Exp Dermatol 2009; 35:493-7. [DOI: 10.1111/j.1365-2230.2009.03622.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [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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16
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Uehara T, Kiyosawa N, Shimizu T, Omura K, Hirode M, Imazawa T, Mizukawa Y, Ono A, Miyagishima T, Nagao T, Urushidani T. Species-specific differences in coumarin-induced hepatotoxicity as an example toxicogenomics-based approach to assessing risk of toxicity to humans. Hum Exp Toxicol 2008; 27:23-35. [PMID: 18480146 DOI: 10.1177/0960327107087910] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
One expected result from toxicogenomics technology is to overcome the barrier because of species-specific differences in prediction of clinical toxicity using animals. The present study serves as a model case to test if the well-known species-specific difference in the toxicity of coumarin could be elucidated using comprehensive gene expression data from rat in-vivo, rat in-vitro, and human in-vitro systems. Coumarin 150 mg/kg produced obvious pathological changes in the liver of rats after repeated administration for 7 days or more. Moreover, 24 h after a single dose, we observed minor and transient morphological changes, suggesting that some early events leading to hepatic injury occur soon after coumarin is administered to rats. Comprehensive gene expression changes were analyzed using an Affymetrix GeneChip approach, and differentially expressed probe sets were statistically extracted. The changes in expression of the selected probe sets were further examined in primary cultured rat hepatocytes exposed to coumarin, and differentially expressed probe sets common to the in-vivo and in-vitro datasets were selected for further study. These contained many genes related to glutathione metabolism and the oxidative stress response. To incorporate human data, human hepatocyte cultured cells were exposed to coumarin and changes in expression of the bridging gene set were examined. In total, we identified 14 up-regulated and 11 down-regulated probe sets representing rat-human bridging genes. The overall responsiveness of these genes to coumarin was much higher in rats than humans, consistent with the reported species difference in coumarin toxicity. Next, we examined changes in expression of the rat-human bridging genes in cultured rat and human hepatocytes treated with another hepatotoxicant, diclofenac sodium, for which hepatotoxicity does not differ between the species. Both rat and human hepatocytes responded to the marker genes to the same extent when the same concentrations of diclofenac sodium were exposed. We conclude that toxicogenomics-based approaches show promise for overcoming species-specific differences that create a bottleneck in analysis of the toxicity of potential therapeutic treatments.
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Affiliation(s)
- T Uehara
- Toxicogenomics Project, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
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17
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Mizukawa Y, Yamazaki Y, Shiohara T. In vivo dynamics of intraepidermal CD8+ T cells and CD4+ T cells during the evolution of fixed drug eruption. Br J Dermatol 2008; 158:1230-8. [PMID: 18363767 DOI: 10.1111/j.1365-2133.2008.08516.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Although a severe form of fixed drug eruption (FDE) clinically and histologically mimics toxic epidermal necrolysis (TEN), subsequent evolution of the two conditions is quite different. It remains unknown, however, which factors determine whether these lesions resolve spontaneously or subsequently progress to TEN. OBJECTIVES Because epidermal injury in TEN can be locally reproduced in the evolving FDE lesions, we sought to investigate how epidermal damage can be induced in the evolving FDE lesions and how disease progression to TEN can be prevented, by analysing the FDE lesions induced by clinical challenge with the causative drug. METHODS We immunohistochemically investigated in vivo dynamics of T-cell trafficking and activation that occur in the evolving FDE lesions using sequential biopsy specimens obtained at multiple time points from the FDE lesions. RESULTS Intraepidermal CD8+ T cells, which are resident in the lesional epidermis as a stable homogeneous population of memory T cells, transiently acquire a natural killer-like phenotype and express cytotoxic granules upon activation. The influx into the epidermis of CD4+ T cells including Foxp3+ regulatory T cells (Tregs) during the evolution serves to ameliorate epidermal damage induced by activation of the intraepidermal CD8+ T cells. Interleukin-15 derived from the lesional epidermis could maintain the survival of the intraepidermal CD8+ T cells even in the absence of antigenic stimulus over a prolonged period of time (> 4 years). CONCLUSIONS Whether Tregs could migrate to the lesions upon activation of intraepidermal CD8+ T cells would determine whether the inflammation becomes resolved spontaneously or progresses to TEN.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan.
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18
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Mizukawa Y, Shiohara T. Which term should be used to describe drug eruptions confined to sites of previous herpes zoster lesions, 'isotopic response' or 'recall phenomenon'? Clin Exp Dermatol 2004; 29:323; author reply 324. [PMID: 15115529 DOI: 10.1111/j.1365-2230.2004.01309.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Mizukawa Y, Shitara K, Yamazaki Y, Teraki Y, Takahashi R, Narimatsu H, Shiohara T. Development and characterization of a monoclonal antibody specific for fucosyltransferase VII (Fuc-TVII): discordant expression of CLA and Fuc-TVII in peripheral CD4+ and CD8+ T cells. J Invest Dermatol 2001; 117:743-7. [PMID: 11564186 DOI: 10.1046/j.1523-1747.2001.t01-1-01447.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Although cutaneous lymphocyte-associated antigen (CLA) is thought to be specifically expressed on skin "homing" T cells, it has become clear that CLA is not directly involved in binding to E-selectin but represents an excellent marker for high levels of fucosyltransferase VII (Fuc-TVII): Fuc-TVII can regulate the ability of T cells to migrate into the skin by generating a binding site for E-selectin. In this study, by using a novel monoclonal antibody for Fuc-TVII, we investigated whether expression of Fuc-TVII could be selectively detected in various CLA+ cell lines and peripheral blood T cells. Fuc-TVII was readily detected in the cytoplasm, but not in the membrane, of CLA+ cell lines. Cytoplasmic Fuc-TVII expression was also detectable in both CD4+ and CD8+ T cells purified from peripheral blood mononuclear cells. Nevertheless, there were significant numbers of CLA-expressing CD4+ or CD8+ T cells that did not coexpress Fuc-TVII, and vice versa: either the CD4+ or the CD8+ T cell population consisted of a variable ratio of CLA+ Fuc-TVII+, CLA+ Fuc-TVII-, and CLA- Fuc-TVII+ cells; and CLA+ Fuc-TVII- cells were the most abundantly identifiable phenotype in peripheral blood CD4+ and CD8+ T cells. Thus, according to their expression pattern, skin "homing" T cells can be subdivided into at least three populations, CLA+ Fuc-TVII+, CLA+ Fuc-TVII-, and CLA- Fuc-TVII+ cells. Our study provides convincing evidence that skin "homing" T cells are phenotypically heterogenous and that Fuc-TVII expression, in combination with CLA expression, is a useful phenotypic marker for identifying skin "homing" T cells in mixed cell populations.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan.
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20
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Shiohara T, Mizukawa Y, Teraki Y, Fukuda T. Gamma-delta T cells with emphasis on their functional role in the epidermis. Chem Immunol 2001; 79:66-86. [PMID: 11478156 DOI: 10.1159/000058832] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- T Shiohara
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan.
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21
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Mizukawa Y, Shitara K, Yamazaki Y, Kudo A, Narimatsu H, Shiohara T, Kudo T. Immunohistochemical detection of skin-homing T cells expressing fucosyltransferase VII (Fuc-TVII) in vitro and in situ. J Transl Med 2001; 81:771-3. [PMID: 11351049 DOI: 10.1038/labinvest.3780286] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Although expression of cutaneous lymphocyte-associated antigen (CLA) is thought to be a specific marker of skin "homing" T cells, it has become clear that CLA is a good marker for high levels of fucosyltransferase VII (Fuc-TVII) activity but does not necessarily represent the epitope required for binding to E-selectin (Wagers et al, 1996, 1997). Therefore, expression of Fuc-TVII is an attractive candidate for identifying skin "homing" T cells. However, analyses of Fuc-TVII expression in human T cells have been performed only at the mRNA level (Nakayama et al, 2000) because of the lack of mAB: In this study Fuc-TVII was for the first time visualized in individual cells by using a novel mAb that we developed. Double immunofluorescence and immunohistochemistry demonstrated the coexpression of Fuc-TVII and CLA in cell lines in which Fuc-TVII mRNA was shown to be expressed at high levels: whereas CLA expression was seen in the cell membrane, Fuc-TVII was identified in a supra- or perinuclear location. Cytoplasmic Fuc-TVII expression was also detectable in both CD4(+) and CD8(+) T cells purified from peripheral blood. Fuc-TVII was also expressed at high levels in many CLA(+) T cells infiltrating the skin. In these peripheral T cells, unlike in cell lines, cytoplasmic expression of Fuc-TVII was not always associated with surface CLA expression. This mAb would serve as a valuable tool for selectively identifying a novel subset of skin "homing" T cells that are not detected by the conventional method because of the lack of CLA expression.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Mitaka, Tokyo, Japan.
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22
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Kano Y, Shimosegawa M, Mizukawa Y, Shiohara T. Pemphigus foliaceus induced by exposure to sunlight. Report of a case and analysis of photochallenge-induced lesions. Dermatology 2001; 201:132-8. [PMID: 11053916 DOI: 10.1159/000018456] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Although there are many reports on photo-induced pemphigus, careful analysis in the development of acantholytic blister have rarely been performed in the lesions induced by photochallenge. OBJECTIVE The study was intended to elucidate the mechanisms by which ultraviolet light (UV) radiation causes the skin lesions of pemphigus foliaceus. METHODS Photochallenge-induced lesions were examined histologically and immunohistochemically over the time course with three biopsy specimens. Neutrophil adhesion assay was performed using the specimens prepared from the photochallenged lesions as substrates. RESULTS A small number of neutrophils were seen at 5 h after photochallenge in the dermis and epidermis, and slight acantholysis was detected at 72 h. In neutrophil adhesion assay, greater numbers of neutrophils adhered to the upper epidermis of the skin obtained at 5 h after challenge. CONCLUSIONS Our results suggest that both enhanced binding of autoantibodies to the epidermis after UV radiation and preferential adhesion of neutrophils to the UV-irradiated epidermis contribute to the development of acantholysis in photo- induced pemphigus foliaceus. Intercellular adhesion molecule-1 (ICAM-1) expression on keratinocytes is not primarily responsible for the epidermal migration of neutrophils.
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Affiliation(s)
- Y Kano
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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Abstract
Episodic angioedema with eosinophilia is characterized by recurrent angioedema, fever and weight gain with a remarkable eosinophilia. A transient type, predominantly reported in Japan, in which the disease is limited to a single attack, is usually less severe than the episodic type described in the U.S.A. and Europe, and provides an ideal disease model in which to study the mechanisms for resolution of eosinophilic inflammation. The aim of this study was to evaluate the relationship between cytokine responses and clinical course in three patients with the transient type. Serum levels of interleukin (IL) -5 were only marginally elevated even during an attack, unlike those in reported cases of the episodic type. Significant elevations in granulocyte-macrophage colony-stimulating factor levels were also noted during an attack in two cases in which it was measured. A dramatic increase in tumor necrosis factor (TNF) -alpha levels was subsequently observed in relation to resolution of clinical symptoms. No major changes in the serum levels of soluble Fas and soluble Fas ligand were found throughout the course. These results suggest that relatively lower levels of IL-5 and a subsequent increase in TNF-alpha levels are characteristic features of the transient type. The differences in clinical symptoms and course observed between the two types may be partly explained by the differences in the cytokine profiles.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan
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24
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Mizukawa Y, Shiohara T. Onset of porokeratosis of Mibelli in organ transplant recipients: lack of a search for transmissible agents in these patients. J Am Acad Dermatol 2001; 44:143-4. [PMID: 11148495 DOI: 10.1067/mjd.2001.109845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Abstract
Fixed drug eruption (FDE) can present as multiple pigmented macules that flare at fixed sites even when the patient has taken no medications. Although this presentation is not characteristic of FDE, it must be borne in mind in order to make a correct diagnosis. We describe such a patient whose condition was initially diagnosed as erythema dyschromicum perstans (EDP). Immunohistochemically intraepidermal T cells were distributed between basal and suprabasal keratinocytes in the lesional skin, a finding suggestive of FDE. A flare occurred not only with exposure to theophylline but also without exposure. A flare has never recurred and pigmented macules faded gradually after avoiding theophylline. On the basis of these findings, we recommend that patients with an EDP-like presentation be examined completely for causes such as drugs before labeling the cutaneous lesions.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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26
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Nakayama F, Teraki Y, Kudo T, Togayachi A, Iwasaki H, Tamatani T, Nishihara S, Mizukawa Y, Shiohara T, Narimatsu H. Expression of cutaneous lymphocyte-associated antigen regulated by a set of glycosyltransferases in human T cells: involvement of alpha1, 3-fucosyltransferase VII and beta1,4-galactosyltransferase I. J Invest Dermatol 2000; 115:299-306. [PMID: 10951250 DOI: 10.1046/j.1523-1747.2000.00032.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Cutaneous lymphocyte-associated antigen (CLA), which plays a key part in skin homing of human CD4+ memory T cells via CLA/E-selectin binding, is upregulated by IL-12 and downregulated by IL-4. Although alpha1,3-fucosyltransferase VII is essential for synthesis of the CLA carbohydrate epitope, little is known about how the CLA expression is regulated by a number of glycosyltransferases. A 6 wk long-term culture for the in vitro differentiation of naïve Th cells to memory Th1 cells was employed. By repeated activation in the presence of IL-12, naïve T cells differentiated into memory Th1 cells, resulting in the upregulation of CLA expression. The switching of cytokine from IL-12 to IL-4 at three cycles resulted in a marked downregulation of CLA. The transcript levels of 16 glycosyltransferases and P-selectin glycoprotein ligand-1, all considered to be potentially involved in CLA synthesis, were determined after each cycle. The level of CLA expression was well correlated with the amounts of alpha1,3-fucosyltransferase VII and beta1,4-galactosyltransferase I. Both were upregulated by IL-12 and downregulated by IL-4. In particular, alpha1,3-fucosyltransferase VII levels decreased markedly in the presence of IL-4. P-selectin glycoprotein ligand-1 and Core 2 beta1, 6-N-acetylglucosaminyltransferase were progressively up-regulated by repeated IL-12 stimulation, but they were not downregulated by IL-4. The transcript levels of some genes examined were constitutive without any correlation to CLA expression. These results suggest that the level of CLA expression is determined by alpha1, 3-fucosyltransferase VII and beta1,4-galactosyltransferase I, the other enzymes merely participating in the synthesis of CLA. In peripheral blood mononuclear cells, IL-12 and IL-4 profoundly upregulated and downregulated the alpha1,3-fucosyltransferase VII transcripts, respectively, but not the beta1,4-galactosyltransferase I ones, within only 2 h of in vitro culture. This suggested that alpha1,3-fucosyltransferase VII is transcriptionally regulated directly by IL-12 and IL-4.
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Affiliation(s)
- F Nakayama
- Division of Cell Biology, Institute of Life Science, Soka University, Tokyo, Japan
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27
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Mizukawa Y, Shiohara T. Virus-induced immune dysregulation as a triggering factor for the development of drug rashes and autoimmune diseases: with emphasis on EB virus, human herpesvirus 6 and hepatitis C virus. J Dermatol Sci 2000; 22:169-80. [PMID: 10698154 DOI: 10.1016/s0923-1811(99)00083-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
There are a considerable amount of empirical and theoretic medical literature regarding the possible role of viruses in the development of drug rashes and autoimmune diseases: under these conditions, interactions of viruses with the immune system would serve as an accelerating factor of disease pathogenesis. Recent reports have provided evidence to indicate that immune responses against infections with Epstein Barr (EB) virus and human herpesvirus 6 (HHV-6), which are lymphotropic members of the herpes virus group, not only aid the direct elimination of the virus but also contribute to a favorable milieu for the initiation or acceleration of drug rashes. Viruses that can persist for the lifetime of the host despite strong immune responses against them, such as EB virus and hepatitis C virus (HCV), would be also relevant to the pathogenesis of autoimmune diseases. HCV has been reportedly associated with a wide variety of dermatoses that, in common, show histologically the lichenoid tissue reaction. Although porokeratosis that manifests lichenoid histopathological features had long been regarded as being associated with immunosuppression, we found that HCV could act as trigger for the development of porokeratosis during states of immunosuppression. Thus, the main purpose of this review is to describe recent work on the etiology of drug rashes and autoimmune disease with special reference to viral infections.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Mikata-city, Tokyo, Japan
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28
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Mizukawa Y, Shiohara T. Porokeratosis in patients with hepatitis C virus infection: does hepatitis C virus infection provide a link between porokeratosis and immunosuppression? Br J Dermatol 1999; 141:163-4. [PMID: 10417540 DOI: 10.1046/j.1365-2133.1999.02945.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
An immunohistochemical investigation of beta1,4-galactosyltransferase (beta1,4-GalT) on human skin tissue was performed on formalin-fixed paraffin-embedded sections using a monoclonal antibody, MAb8628, which specifically recognizes a protein moiety of human beta1,4-GalT. Distribution of the galactose beta1,4-N-acetylglucosamine (Gal beta1,4GlcNAc)-R epitope was also detected by staining with Ricinus communis agglutinin (RCA) 120. The beta1,4-GalT was observed to be localized at the perinuclear region of epidermal keratinocytes. The fine localization was also observed at the supranuclear region in the cells of apocrine glands, eccrine ducts and glands. The positive staining with RCA 120 was well colocalized with the cells expressing the beta1,4-GalT. An electron microscopic study revealed that positive signals of beta1,4-GalT definitely reside in the Golgi apparatus. No immunoreactivity was observed in any other intracellular structure or on the cell surface. These findings strongly indicated that the beta1,4-GalT is the major enzyme responsible for the Gal beta1,4GlcNAc-R epitope synthesis in human skin tissue.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University, School of Medicine, Mitaka, Tokyo, Japan
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30
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Mizukawa Y, Shiohara T. Eosinophilic pustular folliculitis induced after prolonged treatment with systemic corticosteroids in a patient with pustulosis palmoplantaris. Acta Derm Venereol 1998; 78:221-2. [PMID: 9602232 DOI: 10.1080/000155598441585] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Abstract
The pattern of lectin binding in normal human labial mucosa was examined by light and electron microscopy using eight different lectins (ConA, LCA, WGA, UEA-1, RCA-1, SBA, DBA and PNA) and compared with the patterns in normal human skin and oesophageal mucosa. As seen by light microscopy, ConA, LCA, and WGA stained cell membranes in all layers of the mucosae. RCA-1 stained the plasma membrane of cells in the basal and middle layers, whereas cells in the superficial layers showed little positive staining. UEA-1, SBA, and PNA stained the cells in the middle layers weakly in some cases. No positive staining for DBA was seen. By electron microscopy, reaction product indicating ConA-binding sites was observed in the plasma membrane, cisternae of the endoplasmic reticulum, nuclear envelope and the Golgi apparatus. Binding of LCA, WGA, and RCA-1 was observed in the plasma membrane. These results show that the binding pattern of PNA, SBA, and RCA-1 in labial mucosa is different from that in the normal skin or oesophageal mucosa, although the labial mucosal epithelium, epidermis, and oesophageal epithelium are all stratified squamous epithelia. These differences in the cell-surface sugar residues are likely to be related to the possible functional differences in these tissues.
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Affiliation(s)
- Y Mizukawa
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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32
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33
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Abstract
Several fungal strains were found to convert compactin (ML-236B) to 5'-phosphocompactic acid. The product was isolated by solvent extraction and column chromatography, and identified by IR, UV, 1H NMR, 13C NMR and 31P NMR spectroscopy. Related structures (monacolin K, L and X) were also transformed to their corresponding phosphorylated analogues. The products were re-converted back to respective parental compounds by treatment with alkaline phosphatase of calf intestine.
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34
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Takeuchi E, Hotta A, Isaji F, Watanabe T, Yano Y, Shioi K, Mizukawa Y, Hayase S, Sugiyama N, Nogaki H, Washizu T, Tanaka M, Murase M, Shimizu T, Abe T, Iyomasa Y. [Progress in valve surgery with GIK cardioplegia]. Nihon Kyobu Geka Gakkai Zasshi 1983; 31:44-50. [PMID: 6343528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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35
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Abe T, Iyomasa Y, Shimizu T, Murase M, Tanaka M, Washizu T, Nogaki H, Takeuchi E, Sugiyama N, Kito S, Mizukawa Y, Suenaga Y, Shioi K, Yano H, Hotta A, Isazi F, Watanabe T. [Reoperation after mitral commissurotomy (author's transl)]. Nihon Kyobu Geka Gakkai Zasshi 1982; 30:157-63. [PMID: 7097069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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36
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Kawamura M, Minamikawa O, Yokochi H, Maki S, Yasuda T, Mizukawa Y. Hemodynamic effects of prostaglandin E1 during cardiopulmonary bypass in infants and children. Jpn J Surg 1982; 12:19-25. [PMID: 7200161 DOI: 10.1007/bf02469010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Effects of prostaglandin E1 (PGE1) and phenoxybenzamine (POB) on the hemodynamics during cardiopulmonary bypass (CPB) were studied in 30 infants and children. Patients were grouped into three; PGE1 was given to ten patients, POB to another ten, and the other ten patients served as the control. Vasodilating drugs were withheld. PGE1 was infused at 0.01 to 0.02 microgram/kg/min during CPB, and POB at 1.0 mg/kg within the initial 10 minutes of bypass. There was a significant drop in arterial and venous pressure at the time of initiation of bypass in both the PGE1 and POB groups. In the PGE1 group in particular, such a stable hemodynamic condition of over 60 mm Hg in mean arterial pressure, 7.5 to 12.5 cmH2O in central venous pressure, 1300 to 1700 dynes . sec . cm -5 in systemic vascular resistance was maintained throughout CPB, as compared with the other two groups. PGE1 contributed to an adequate diuresis and the preservation of platelets. Our findings indicate that PGE1 has potential clinical advantages for application during CPB.
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Mizukawa Y. [Effects on hemodynamics in the early postoperative stage of open heart surgery at administration of prostaglandin E (author's transl)]. Nihon Kyobu Geka Gakkai Zasshi 1981; 29:1603-15. [PMID: 7198674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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38
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Mizukawa Y. [Effects on hemodynamics during cardiopulmonary bypass at administration of prostaglandin E1 (author's transl)]. Nihon Kyobu Geka Gakkai Zasshi 1981; 29:1417-27. [PMID: 7199068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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39
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Kawamura M, Minamikawa O, Yokochi H, Maki S, Yasuda T, Mizukawa Y. Safe limit of hemodilution in cardiopulmonary bypass -comparative analysis between cyanotic and acyanotic congenital heart disease. Jpn J Surg 1980; 10:206-11. [PMID: 7218597 DOI: 10.1007/bf02468749] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A safe limit of hemodilution in cardiopulmonary bypass (CPB) for open heart surgery was investigated by analyzing of the perfusion results of 100 patients with tetralogy of Fallot (TOF) and ventricular septal defect (VSD). The higher perfusion flow was necessary to compensate for the reduced oxygen carrying capacity and to maintain adequate arterial pressure in proportion to the increase in hemodilution. Once the dilution ratio reached over 40% in TOF and 50% in VSD, however, adequate oxygen transfer and stable hemodynamic conditions could not be maintained. The former was due to inadequate oxygen delivery and the latter to an impaired venous return. In these cases, various complications caused by residual diluent in the body space despite of extensive diuretic therapy occurred immediately postop. The safe limit of hemodilution is 50%. However, that of cyanotic disease, even in the presence of remarkable polycythemia, must be limited to less than 40%.
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Kawamura M, Minamikawa O, Yokochi H, Maki S, Yasuda T, Mizukawa Y. Combined use of phenoxybenzamine and dopamine for low cardiac output syndrome in children at withdrawal from cardiopulmonary bypass. Br Heart J 1980; 43:388-92. [PMID: 7397040 PMCID: PMC482297 DOI: 10.1136/hrt.43.4.388] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The combined use of phenoxybenzamine and dopamine was applied in infants and children when it was difficult to come off cardiopulmonary bypass for low cardiac output. The rationale of this method is to prevent the alpha-adrenergic action of dopamine by phenoxybenzamine and to encourage the beta-adrenergic and direct specific action of dopamine. Dopamine was used in dosage of 10 to 30 micrograms/kg per min after the additional administration of a half of the initial dosage of phenoxybenzamine; this was infused by drip always in a dosage of 0.5 to 1.0 mg/kg during the first half of cardiopulmonary bypass. It was possible to come off cardiopulmonary bypass with a stable haemodynamic state (mean arterial pressure more than 60 mmHg and total peripheral vascular resistance less than 2000 bynes s cm-5) and a good urinary output.
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Kawamura M, Miyata Y, Kobayashi A, Minamikawa O, Yokochi H, Maki S, Yasuda T, Mizukawa Y. [Postoperative care after severe hemodilution in cardiopulmonary bypass (author's transl)]. Kyobu Geka 1978; 31:756-8. [PMID: 702978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Kawamura M, Miyata Y, Kobayashi A, Minamikawa O, Yokochi H, Maki S, Yasuda T, Mizukawa Y, Sakakibara K. [Hemodilution in practice of cardiopulmonary bypass for infants open heart surgery (author's transl)]. Nihon Kyobu Geka Gakkai Zasshi 1978; 26:155-62. [PMID: 650028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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