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Journal of Dermatological Science

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https://www.readbyqxmd.com/read/30527377/trpv1-mediates-inflammation-and-hyperplasia-in-imiquimod-imq-induced-psoriasiform-dermatitis-psd-in-mice
#1
Yan Zhou, Taylor Follansbee, Xuesong Wu, Dan Han, Sebastian Yu, Dan T Domocos, Zhenrui Shi, Mirela Carstens, Earl Carstens, Samuel T Hwang
BACKGROUND: Transient Receptor Potential Vanilloid 1 (TRPV1) is known to mediate itch and neurogenic inflammation, but the role of TRPV1 in psoriasiform dermal inflammation is poorly understood. OBJECTIVE: To investigate the function of TRPV1 in imiquimod (IMQ)-induced psoriasiform dermatitis (PsD) in mice. METHODS: Following daily treatment of topical IMQ cream for consecutive 5 days in C57BL/6 wide-type (WT) and TRPV1 gene knockout (KO) mice, we assessed the psoriasis severity index (PSI) scores, transepidermal water loss (TEWL), dermal inflammatory infiltrates, as well as gene expression levels for psoriasis related genes in mouse skin lesions...
November 26, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30522881/glucocorticoid-insensitivity-by-staphylococcal-enterotoxin-b-in-keratinocytes-of-allergic-dermatitis-is-associated-with-impaired-nuclear-translocation-of-the-glucocorticoid-receptor-%C3%AE
#2
Ke Huang, Lei Ran, Wei Wang, Rong Zhou, Xiaowei Cai, Ran Li, Yuanchao Li, Chunli Zhou, Wei He, Rupeng Wang
BACKGROUND: staphylococcal enterotoxin plays an important role in patients with glucocorticoid (GC)-resistant atopic dermatitis (AD), but the exact mechanism is not fully understood. OBJECTIVE: The aim of this study was to investigate the mechanisms underlying the ability of staphylococcal enterotoxin B (SEB) to induce steroid insensitivity through impaired nuclear translocation of GRα in keratinocytes. METHODS: The steroid-resistant AD induced by SEB was assessed by analyzing dermatitis score, dermal thickness, scratching behavior, infiltrating cells/HPF, levels of SEB-specific IgE and IgG2a antibody...
November 26, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30514664/regulatory-and-effector-b-cells-friends-or-foes
#3
REVIEW
Takashi Matsushita
B cells have moved to the center stage in many autoimmune diseases including autoantibody-mediated diseases and T cell-mediated autoimmune diseases such as rheumatoid arthritis and multiple sclerosis. B cells play an important role for immune response beyond antibody production through mechanisms like antigen presentation and cytokine production. However, not all B cells positively regulate immune responses. Regulatory B cells negatively regulate immune responses by production of anti-inflammatory cytokines such as IL-10, IL-35, and TGF-β...
November 23, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30514663/stat3-activation-in-epidermal-keratinocytes-induces-langerhans-cell-activation-to-form-an-essential-circuit-for-psoriasis-via-il-23-production
#4
Kimiko Nakajima, Sayo Kataoka, Kenji Sato, Mikiro Takaishi, Mayuko Yamamoto, Hideki Nakajima, Shigetoshi Sano
BACKGROUND: Psoriasis is an inflammatory disease associated with aberrant crosstalk between the epidermis and immune system. However, the role of Langerhans cells (LCs) in psoriasis remains controversial. OBJECTIVES: To elucidate whether LCs are functionally involved in the development of psoriasis using a mouse model. METHODS: Two lines of transgenic mice were used and crossed. They included K5.Stat3C, the psoriasis-model mouse and langerin DTR knock-in (KI) mouse...
November 23, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30527376/molecular-mechanism-of-the-ichthyosis-pathology-of-chanarin-dorfman-syndrome-stimulation-of-pnpla1-catalyzed-%C3%AF-o-acylceramide-production-by-abhd5
#5
Yusuke Ohno, Atsuki Nara, Shota Nakamichi, Akio Kihara
BACKGROUND: ABHD5 mutations cause Chanarin-Dorfman syndrome accompanied by ichthyosis. ω-O-Acylceramide (acylceramide) is essential for skin permeability barrier formation. Acylceramide production is impaired in Abhd5 knockout mice. The transacylase PNPLA1 catalyzes the final step of acylceramide production: transfer of linoleic acid in triglyceride to ω-hydroxyceramide. OBJECTIVE: We aimed to elucidate the role of ABHD5 in acylceramide production and the molecular mechanism of the ichthyosis symptoms of Chanarin-Dorfman syndrome...
November 20, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30522880/the-first-japanese-case-of-familial-porphyria-cutanea-tarda-diagnosed-by-a-urod-mutation
#6
LETTER
Akinobu Matsui, Eijiro Akasaka, Daiki Rokunohe, Yasushi Matsuzaki, Daisuke Sawamura, Hajime Nakano
No abstract text is available yet for this article.
November 15, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30551916/universal-varicella-vaccination-reduced-the-incidence-of-herpes-zoster-in-vaccine-recipients-1-to-4-years-of-age
#7
LETTER
Nozomu Toyama, Kimiyasu Shiraki
No abstract text is available yet for this article.
November 13, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30514661/degenerated-hair-follicle-cells-and-partial-loss-of-sebaceous-and-eccrine-glands-in-a-familial-case-of-axenfeld-rieger-syndrome-an-emerging-role-for-the-foxc1-nfatc1-genetic-axis
#8
Hadla Hariri, Mazen Kurban, Christiane Al-Haddad, Akl C Fahed, Sarin Poladian, Athar Kahlil, Oussama Abbas, Mariam Arabi, Fadi Bitar, Georges Nemer
BACKGROUND: Cutaneous malformations are at times associated with some forms of congenital heart defects. Many a times subtle cutaneous phenotypes maybe overlooked as their significance on the lives of individuals is minimal. Lebanon represents an area of high consanguinity, where the rates can go beyond 70% in some districts. For the past 6 years, we have been studying several genodermatoses in Lebanon including those with cardiac malformations. OBJECTIVES: The main aim of this study is to document the genetic basis of a familial case of Axenfeld-Rieger Syndrome (ARS) with a mild cutaneous phenotype represented histologically with degeneration/ absence of hair follicles and incomplete formation of sebaceous and eccrine glands, in addition to the cardiac and ocular phenotypes...
November 10, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30514662/reduction-in-human-hair-graying-by-sterubin-an-active-flavonoid-of-eriodictyon-angustifolium
#9
LETTER
Nobuhiko Taguchi, Toshihiro Hata, Emi Kamiya, Ai Kobayashi, Hitomi Aoki, Takahiro Kunisada
No abstract text is available yet for this article.
November 8, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30528293/analysis-of-sulfated-glycosaminoglycan-composition-change-in-intrinsically-aged-and-photoaged-human-skin-using-an-enzymatic-degradation-method
#10
Jang-Hee Oh, Min Kyeong Shin, Hanon Lee, Jiyeong Lim, Mira Choi, Soyun Cho, Jin Ho Chung
No abstract text is available yet for this article.
October 30, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30527378/nation-wide-survey-of-advanced-non-melanoma-skin-cancers-treated-at-dermatology-departments-in-japan
#11
Yasuhiro Fujisawa, Takeru Funakoshi, Yoshiyuki Nakamura, Maki Ishii, Jun Asai, Takatoshi Shimauchi, Kazuyasu Fujii, Manabu Fujimoto, Norito Katoh, Hironobu Ihn
BACKGROUND: There are limited treatment options for advanced non-melanoma skin cancers (NMSCs). To overcome this issue, we need to conduct clinical studies, however, there is a lack of information on how many patients with advanced NMSCs are treated annually in Japan. OBJECTIVE: To investigate the actual number of advanced NMSC patients in Japan. METHODS: A questionnaire survey was sent to 668 institutes to educe information on: 1) the numbers of patients with squamous cell carcinoma (SCC), extramammary Paget disease (EMPD), other skin origin carcinomas, and cutaneous angiosarcoma (CAS) admitted in 2016 and 2017; 2) the preferred first- and second-line chemotherapies; and 3) the anticipated for future development...
December 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30527375/the-different-roles-of-5-ht1a-2a-receptors-in-fluoxetine-ameliorated-pigmentation-of-c57bl-6-mouse-skin-in-response-to-stress
#12
Liangliang Zhou, Minxuan Cai, Yingying Ren, Huali Wu, Meng Liu, Haijuan Chen, Jing Shang
BACKGROUND: 5-HT1A receptor was participated in fluoxetine induced melanogenesis in melanocytes and in normal C57BL/6 mice, but we know little about whether other 5-HT receptors are involved in regulation of fluoxetine promotes pigmentation. OBJECTIVE: To investigate the role of 5-HT receptors in regulation of fluoxetine ameliorates chronic unpredictable mild stress (CUMS) and chronic restraint stress (CRS) induce hypopigmentation in C57BL/6 mice. METHODS: CUMS and CRS were used to induce depigmentation in mice and evaluate the effect of fluoxetine...
December 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30522882/brahma-deficiency-in-keratinocytes-promotes-uv-carcinogenesis-by-accelerating-the-escape-from-cell-cycle-arrest-and-the-formation-of-dna-photolesions
#13
Andrew W Farrell, Gary M Halliday, J Guy Lyons
BACKGROUND: Ultraviolet radiation (UVR) is the principal cause of keratinocyte skin cancers. Previous work found that levels of the chromatin remodelling protein, Brahma (Brm), are diminished during the progression from actinic keratoses to cutaneous squamous cell carcinomas in humans, and its loss in UV-irradiated mouse skin causes epidermal hyperplasia and increased tumour incidence. METHODS: The skins of mice and mouse and human keratinocytes deficient in Brm were exposed to UVR and evaluated for cell cycle progression and DNA damage response...
December 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30227989/low-dose-uvb-therapy-is-comparable-with-conventional-uvb-phototherapy-for-treatment-of-vitiligo-a-pilot-study
#14
LETTER
Szu-Hao Chiu, I Liang Liu, Yu Wen Chen, Cheng-Che E Lan
No abstract text is available yet for this article.
November 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30318169/serum-concentrations-of-hgf-are-correlated-with-response-to-anti-pd-1-antibody-therapy-in-patients-with-metastatic-melanoma
#15
Yosuke Kubo, Satoshi Fukushima, Yukiko Inamori, Mina Tsuruta, Sho Egashira, Saori Yamada-Kanazawa, Satoshi Nakahara, Aki Tokuzumi, Azusa Miyashita, Jun Aoi, Ikko Kajihara, Yusuke Tomita, Kazumasa Wakamatsu, Masatoshi Jinnin, Hironobu Ihn
BACKGROUND: Anti-programmed cell death protein (PD)-1 antibody treatment is associated with a notable improvement in only 30%-40% of patients. Thus, a predictive and easily measured marker of the clinical benefit of anti-PD-1 antibody treatment is necessary; therefore, in this study, we focused on the serum concentration of hepatocyte growth factor (HGF). OBJECTIVES: To evaluate whether the serum concentration of HGF can be used as a biomarker for the clinical response to anti-PD-1 antibody therapy...
October 6, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30153959/an-overview-of-epidermal-lamellar-bodies-novel-roles-in-biological-adaptations-and-secondary-barriers
#16
REVIEW
Gopinathan K Menon, Sang Eun Lee, Seung-Hun Lee
The epidermal lamellar bodies (LBs) are specialized organelles that contain pro-barrier lipids imparting a fully lamellar internal structure, but also other cargoes such as enzymes (lipid metabolizing and proteolytic), enzyme inhibitors, and antimicrobial peptides. Thus, the LB secretory system, by virtue of delivering these cargoes to the stratum corneum (SC) interstices, is essential for forming the various skin barriers located in the SC. Ultrastructural studies have suggested that the morphologic features of LBs reflect the functional status of the SC...
October 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30149967/mechanistic-and-pharmacological-assessment-of-murine-il-23-mediated-psoriasiform-dermatitis-implications-for-drug-discovery
#17
Stephen B Gauld, Donna Gauvin, Lauren Olson, Laura Leys, Stephanie Paulsboe, Zheng Liu, Rebecca M Edelmayer, Joseph Wetter, Katherine Salte, Yibing Wang, Susan Huang, Prisca Honore, Steven McGaraughty
BACKGROUND: Animal models of Psoriasis (PsO) are important for our understanding of the pathophysiology of human disease but rarely manifest all features of the disease. In order to facilitate greater understanding of the underlying biology of PsO it is key that we understand the strengths and limitations of models used. OBJECTIVE: While humanized mouse models are available for PsO they remain technically challenging, expensive, require prolonged timelines and require a continued source of human tissue...
October 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30146106/generation-of-trichogenic-adipose-derived-stem-cells-by-expression-of-three-factors
#18
Nahyun Choi, Junjeong Choi, Ji Hye Kim, Yaeji Jang, Joo Hye Yeo, Juwon Kang, Seung Yong Song, Jinu Lee, Jong-Hyuk Sung
BACKGROUND: Previous studies demonstrated that adipose-derived stem cells (ASCs) can promote hair growth, but unmet needs exist for enhancing ASC hair inductivity. OBJECTIVE: Therefore, we introduced three trichogenic factors platelet-derived growth factor-A, SOX2, and β-catenin to ASCs (tfASCs) and evaluated whether tfASCs have similar characteristics as dermal papilla (DP) cells. METHOD: Global gene expression was examined using NGS analysis...
October 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30143369/the-effect-of-levamisole-in-the-treatment-of-recalcitrant-recurrent-erythema-multiforme-major-an-observational-study
#19
Ren-Feng Liu, Chun-Bing Chen, Rosaline C Y Hui, Yue-Zon Kuan, Wen-Hung Chung
BACKGROUND: Erythema multiforme major (EMM) is an immune-mediated mucocutaneous eruption mostly triggered by herpes simplex virus (HSV) infection. A vicious circle of recurrence may be developed due to HSV reactivation and prolonged use of systemic corticosteroids to control EMM. Levamisole is an immunomodulator and has been applied to prevent relapses of recurrent HSV infection. OBJECTIVE: To evaluate the clinical efficacy and safety of levamisole in patients with recalcitrant recurrent EMM...
October 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/30126748/tetrathiomolybdate-a-copper-chelator-inhibited-imiquimod-induced-skin-inflammation-in-mice
#20
Peng-Yang Hsu, Hsu-Heng Yen, Tao-Hsiang Yang, Che-Chun Su
BACKGROUND: Copper is an essential metal for maintenance of many biological functions; however, excessive amount can induce inflammation and oxidative stress. Tetrathiomolybdate (TM) is a copper chelator for treatment of Wilson's disease, and decreased the severity of autoimmune arthritis in mice. OBJECTIVE: In this report, we evaluated the effects of TM in a mouse model for psoriasis. METHODS: Imiquimod-induced psoriasis murine model was used...
October 2018: Journal of Dermatological Science
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