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Yunoki M, Fukuchi K, Fujiyama T, Ito T, Honda T. Resolution of Molluscum Contagiosum After Discontinuation of Topical Corticosteroids During Dupilumab Therapy for Atopic Dermatitis: A Case Report. Cureus 2024; 16:e67391. [PMID: 39310604 PMCID: PMC11415223 DOI: 10.7759/cureus.67391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2024] [Indexed: 09/25/2024] Open
Abstract
A 35-year-old male patient with atopic dermatitis (AD) was referred to our department for exacerbated AD lesions. His sudden discontinuation of topical corticosteroid had induced erythroderma on his face, extremities, and trunk. Additionally, he presented small multiple whitish papules, mainly on the trunk and thighs, diagnosed as molluscum contagiosum (MC). Dupilumab was initiated in combination with a topical corticosteroid (0.05% betamethasone butyrate propionate). After four weeks, the AD symptoms substantially improved, while MC showed no changes. After 11 weeks of dupilumab therapy, he abruptly stopped topical corticosteroid treatment, and the MC lesions completely resolved in two weeks.
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Fukuchi K, Shimauchi T, Fujiyama T, Ito T, Honda T. A case of bullous pemphigoid in a malignant melanoma patient following an increased Th2/Th1 ratio in peripheral blood cells after nivolumab treatment. Eur J Dermatol 2023; 33:550-551. [PMID: 38297931 DOI: 10.1684/ejd.2023.4571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
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Nakazawa S, Phadungsakswasdi P, Kageyama H, Fukuchi K, Shimauchi T, Fujiyama T, Ito T, Honda T. Decreased serum level of suprabasin in patients with nickel allergy. J Dermatol 2022; 49:e189-e190. [PMID: 35178720 DOI: 10.1111/1346-8138.16315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/18/2022] [Accepted: 01/24/2022] [Indexed: 11/29/2022]
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Ogura Y, Fukuchi K, Morimoto H, Yuki T, Otsuka M, Shimauchi T, Honda T, Tokura Y. Elevation of circulating neutrophil extracellular traps, interleukin (IL)-8, IL-22, and vascular endothelial growth factor in patients with venomous snake mamushi (Gloydius blomhoffii) bites. J Dermatol 2022; 49:124-132. [PMID: 34611926 DOI: 10.1111/1346-8138.16181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 11/29/2022]
Abstract
Mamushi bites cause swelling and pain that extend from the bitten site. The coagulopathic, anti-coagulopathic, and vasculopathic actions of mamushi venom result in various laboratory abnormalities, occasionally with muscular, renal, and other organ damage. We investigated the serum biomarkers that were associated with the pathogenesis of mamushi bites, focusing on markers related to tissue-damage and neutrophil activation. Twenty patients (one case of grade 2, 13 cases of grade 3, and six cases of grade 4 of severity) seen by us in one summer season were enrolled. Peripheral blood samples were taken from the patients on day 0, day 2, and day 7 after mamushi bites. In addition to routine blood examination, serum samples were subjected to enzyme-linked immunosorbent assay for citrullinated histone H3 (CitH3), interleukin (IL)-8, IL-17A, IL-22, vascular endothelial growth factor (VEGF), high mobility group box protein 1 (HMGB1), tumor necrosis factor (TNF)-α, and IL-33. Creatinine kinase (CK) values significantly correlated with prothrombin time (PT) levels, suggesting that muscular damage is associated with exaggerated coagulation and fibrinolysis. In the vast majority of patients, HMGB1, TNF-α, and IL-33 were under detection levels. Neutrophil counts did not correlate with PT or CK, indicating that the coagulation disorder and muscular damage were virtually independent of the neutrophil activation. The neutrophil number significantly correlated with CitH3, a representative marker of neutrophil extracellular traps. Moreover, there were significant correlations between neutrophil number, CitH3, IL-8, IL-22, and VEGF. Our study suggests that there are two major cascades in mamushi bites. One is an already characterized venom effect on coagulation, vessels, and muscles. In the other novel cascade, we propose that neutrophil activation with IL-8 leads to the production of IL-22 and VEGF. This sequential event may contribute to both vascular damage and repair.
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Takeuchi Y, Noritake H, Matsumoto M, Umemura M, Yamashita M, Kitsugi K, Takatori S, Ohta K, Ito J, Shimoyama S, Kaysuya A, Maruyama C, Fukuchi K, Dohtan S, Sakata H, Kawata K. Azathioprine-induced severe myelosuppression accompanied by massive hair loss and painful oral ulcer in an autoimmune hepatitis patient with NUDT15 minor variant: A case report. Clin Case Rep 2021; 9:e04696. [PMID: 34466252 PMCID: PMC8385330 DOI: 10.1002/ccr3.4696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 07/26/2021] [Indexed: 11/11/2022] Open
Abstract
This report highlights azathioprine-induced severe myelosuppression in the patient with NUDT15 minor variant. This case report is particularly instructive because several typical symptoms are the clues to this critical adverse drug reaction.
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Phadungsaksawasdi P, Kasuya A, Fukuchi K, Aoshima M, Nakazawa S, Suzuki T, Fujiyama T, Tokura Y, Honda T. Three-dimensional histological explanation of the dermoscopy patterns in acral melanocytic lesions. J Dermatol 2021; 48:1193-1200. [PMID: 33908083 DOI: 10.1111/1346-8138.15907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 03/15/2021] [Accepted: 03/29/2021] [Indexed: 12/01/2022]
Abstract
Dermoscopic images of pigmented lesions have distinct features on the sole where skin ridges and furrows exist. Pigmentation of benign nevus usually locates on the skin furrow, while the malignant melanoma is pigmented on the skin ridge. Correspondence between dermoscopy and pathology in the pigmented lesions on soles have been studied based on conventional vertical pathological images. However, for the full understanding of the correspondence, observation of horizontal histological images would be required, because the epidermis constructs unique horizontal structures, namely crista profunda limitans, crista profunda intermedia, and transverse ridge. In this study, we analyzed basic dermoscopic images of the representative acral melanocytic lesions (nevus, lentigo, and malignant melanoma) by horizonal histological images. We created serial horizontal pathological images by digital reconstruction of a hundred of serial vertical images. We could show that parallel furrow pattern is created by the pigmentation of crista profunda limitans, parallel ridge pattern by the pigmentation of both of crista profunda limitans and crista profunda intermediate, and lattice-like pattern by the pigmentation of transverse ridge. Our results would be useful for the intuitive histological understanding of dermoscopy.
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Fukuchi K, Tatsuno K, Sakaguchi K, Sano S, Sasaki T, Aoki S, Kubo A, Tokura Y. Novel gene mutations in Chédiak-Higashi syndrome with hyperpigmentation. J Dermatol 2019; 46:e416-e418. [PMID: 31245861 DOI: 10.1111/1346-8138.14987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kasuya A, Aoshima M, Fukuchi K, Shimauchi T, Fujiyama T, Tokura Y. Digitally reconstructed top‐down view images provide intuitive understanding of the correlation between dermoscopy and histopathology: a good educational tool. Br J Dermatol 2019; 181:606-607. [DOI: 10.1111/bjd.17819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Goto H, Shimauchi T, Fukuchi K, Yokota N, Koizumi S, Aoshima M, Endo Y, Masuda Y, Miyazawa H, Kasuya A, Nakamura K, Ito T, Tokura Y. Therapeutic Effectiveness of Immunoradiotherapy on Brain-metastatic BRAF/MEK Inhibitor-resistant Melanoma with Balloon Cell Change. Acta Derm Venereol 2019; 99:612-613. [PMID: 30673109 DOI: 10.2340/00015555-3134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Goto H, Shimauchi T, Fukuchi K, Yokota N, Koizumi S, Aoshima M, Endo Y, Masuda Y, Miyazawa H, Kasuya A, Nakamura K, Ito T, Tokura Y. Therapeutic Effectiveness of Immunoradiotherapy on Brain-metastatic BRAF/MEK Inhibitor-resistant Melanoma with Balloon Cell Change. Acta Derm Venereol 2019. [PMID: 30673109 DOI: 10.2340/00015555-3134.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Fukuchi K, Hikawa M, Sano Y, Kasuya A, Aoshima M, Tatsuno K, Nakamura Y, Kosugi I, Tokura Y. Sarcoid‐like reaction and vitiligo occurring after nivolumab therapy in a patient with metastatic melanoma. J Dermatol 2019; 46:e359-e360. [DOI: 10.1111/1346-8138.14887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Fukuchi K, Shimauchi T, Tatsuno K, Tokura Y. Induction of plasmablasts by follicular helper T cell-CXCL13 axis upon occurrence of herpes zoster. Clin Immunol 2018; 195:93-100. [PMID: 30118865 DOI: 10.1016/j.clim.2018.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/12/2018] [Accepted: 08/13/2018] [Indexed: 10/28/2022]
Abstract
Herpes zoster (HZ) is a recurrent varicella zoster virus (VZV) infection. Follicular helper T (Tfh) cells produce IL-21 and CXCL13, which contributes to the differentiation of plasmablasts. Plasmablasts are involved in the VZV-specific antibody production. We investigated the kinetics of circulating plasmablasts and circulating Tfh (cTfh) cells in 43 HZ patients. Plasma IL-21 and CXCL13 levels were also measured. We found an increase of circulating plasmablasts during the clinical course of HZ. The frequency of circulating plasmablasts positively correlated with VZV-specific IgG titers, frequency of activated cTfh cells, and plasma CXCL13 levels, but did not correlate with plasma IL-21 levels. In a representative case, the kinetics peaked in the order of cTfh cells, CXCL13, plasmablasts, and VZV IgG titer. These results suggest that cTfh-CXCL13 may have a crucial role in the differentiation of B cells into VZV-specific IgG-producing plasmablasts, resulting in boosting immunity against VZV reactivation.
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Fukuchi K, Tokura Y. Papuloerythroderma occurring in a patient with myelodysplastic syndrome. JOURNAL OF CUTANEOUS IMMUNOLOGY AND ALLERGY 2018. [DOI: 10.1002/cia2.12007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Kasuya A, Fukuchi K, Sano Y, Tatsuno K, Kitano S, Ishibe J, Fujiyama T, Tokura Y. Case of renal metastasis of melanoma successfully controlled by a combination therapy of nivolumab and radiation. J Dermatol 2018; 45:e246-e247. [DOI: 10.1111/1346-8138.14291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fukuchi K, Tatsuno K, Matsushita K, Kubo A, Ito T, Tokura Y. Familial acanthosis nigricans with p.K650T FGFR3
mutation. J Dermatol 2017; 45:207-210. [DOI: 10.1111/1346-8138.14107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 09/21/2017] [Indexed: 12/15/2022]
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Tatsuno K, Sano T, Fukuchi K, Kuriyama S, Aoshima M, Kasuya A, Ikeya S, Fujiyama T, Ito T, Tokura Y. Emergence of Photosensitivity with Decreased Treg Cells in a Patient with Mycosis Fungoides Treated with Anti-CC Chemokine Receptor 4 Antibody Mogamulizumab. Acta Derm Venereol 2016; 96:420-1. [PMID: 26463269 DOI: 10.2340/00015555-2257] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Aoshima M, Fukuchi K, Tatsuno K, Ito T, Tokura Y. Ectopic Adipose Tissue with Vasculitis in the Calf Muscle Explaining Systemic Symptoms in Leg-limited Cutaneous Polyarteritis Nodosa. Acta Derm Venereol 2016; 96:142-3. [PMID: 26059212 DOI: 10.2340/00015555-2163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Takayanagi H, Nakagami K, Tsuneizumi M, Fukuchi K, Haramiishi K. 465. The role of single-photon emission computed tomography in sentinel lymph node biopsy, denying taking too many lymph nodes a lot. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Watanabe D, Kudo SE, Hayashi S, Mori Y, Kodama K, Wakamura K, Miyachi H, Yamamura F, Ohtsuka K, Mikogami T, Kimura S, Fukuchi K, Ikehara N. Endocytoscopy provides an in vivo virtual histopathological diagnosis of Whipple's disease. Endoscopy 2014; 45 Suppl 2 UCTN:E143-4. [PMID: 23716103 DOI: 10.1055/s-0032-1326276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Shoji H, Shirakura T, Takuma T, Fukuchi K, Hanaki H, Niki Y. P44 A molecular analysis of quinolone-resistant Haemophilus influenzae: Validation of the mutations in quinolone resistance-determining regions. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70289-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lalonde R, Fukuchi K, Strazielle C. APP transgenic mice for modelling behavioural and psychological symptoms of dementia (BPSD). Neurosci Biobehav Rev 2012; 36:1357-75. [PMID: 22373961 PMCID: PMC3340431 DOI: 10.1016/j.neubiorev.2012.02.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 02/10/2012] [Accepted: 02/13/2012] [Indexed: 12/17/2022]
Abstract
The discovery of gene mutations responsible for autosomal dominant Alzheimer's disease has enabled researchers to reproduce in transgenic mice several hallmarks of this disorder, notably Aβ accumulation, though in most cases without neurofibrillary tangles. Mice expressing mutated and wild-type APP as well as C-terminal fragments of APP exhibit variations in exploratory activity reminiscent of behavioural and psychological symptoms of Alzheimer dementia (BPSD). In particular, open-field, spontaneous alternation, and elevated plus-maze tasks as well as aggression are modified in several APP transgenic mice relative to non-transgenic controls. However, depending on the precise murine models, changes in open-field and elevated plus-maze exploration occur in either direction, either increased or decreased relative to controls. It remains to be determined which neurotransmitter changes are responsible for this variability, in particular with respect to GABA, 5HT, and dopamine.
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Mita K, Fukuchi K, Hamana K, Ichimura S, Nenoi M. Accumulation of spermidine/spermine N1‐acetyltransferase and alternatively spliced mRNAs as a delayed response of HeLa S3 cells following X‐ray irradiation. Int J Radiat Biol 2009; 80:369-75. [PMID: 15223770 DOI: 10.1080/09553000410001695886] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE A key enzyme of polyamine catabolism, spermidine/spermine N(1)-acetyltransferase (SSAT), is responsive to antiproliferative agents. The role of SSAT in cellular responses to X-ray irradiation was examined. MATERIALS AND METHODS Exponentially growing HeLa S3 cells were irradiated by X-rays, and mRNA levels for SSAT were measured as a function of post-irradiation time through Northern hybridization. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect alternatively spliced SSAT mRNAs. The intracellular polyamine content was measured by the o-phthalaldehyde method and the enzymatic activity of SSAT by the increased amount of acetylated spermidine after incubation. RESULTS Not only SSAT mRNA, but also an alternatively spliced mRNA accumulated at the initial stage of growth inhibition after the first or second replication of irradiated cells. The maximum fold increase relative to the level of non-irradiated cells was 3.0-3.5 for both transcripts after 5-Gy irradiation. On the other hand, the mRNA of ornithine decarboxylase, a key enzyme of polyamine synthesis, was little influenced by X-ray treatment. Enzymatic activity of SSAT and the acetylspermidine level were elevated after X-ray irradiation. CONCLUSIONS Activation of SSAT and the induction of alternatively spliced mRNA of the SSAT gene play an important role in regulating growth inhibition and cell death after X-ray irradiation.
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Morita S, Tsuji K, Matsuda S, Fukuchi K, Fukuda A, Yamada K, Kinoshita S, Matsumoto K, Tabushi M, Yoshida H, Iseki T. P.159 A study of odontogenic tumors by the new WHO classiflcation. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71947-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Tsunekawa T, Ogino H, Minatoya K, Matsuda H, Sasaki H, Fukuchi K. Masked Prosthetic Graft to Sigmoid Colon Fistula Diagnosed by 18-fluorodeoxyglucose Positron Emission Tomography. Eur J Vasc Endovasc Surg 2007; 33:187-9. [PMID: 16904347 DOI: 10.1016/j.ejvs.2006.06.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2006] [Accepted: 06/14/2006] [Indexed: 11/30/2022]
Abstract
The diagnosis of low grade prosthetic graft infection or aorto-enteric fistula is difficult using conventional radiographic imaging modalities. We report a case of aorto-enteric fistula to the sigmoid colon diagnosed by the new technique of 18-fluorodeoxyglucose positron emission tomography.
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Fukuchi K, Ohta H, Matsumura K, Ishida Y. Benign variations and incidental abnormalities of myocardial FDG uptake in the fasting state as encountered during routine oncology positron emission tomography studies. Br J Radiol 2006; 80:3-11. [PMID: 17005513 DOI: 10.1259/bjr/92105597] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Increased 18fluoro-2-deoxyglucose (FDG) uptake in the myocardium is frequently observed while performing clinical positron emission tomography (PET) body scans for oncology under fasting conditions. This article reviews the normal variations and abnormal appearances of myocardial FDG accumulation which are likely to be encountered in the routine PET studies. Knowledge about the myocardial glucose metabolism and specific abnormalities are indispensable in the interpretation of myocardial FDG uptake.
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