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https://www.readbyqxmd.com/read/28441252/paget-s-disease-of-the-vulva-a-review-of-20-years-experience
#1
Raghava Parashurama, Vivek Nama, Richard Hutson
BACKGROUND: Extramammary Paget's disease is a rare condition, and the vulva is a common site for it to occur. Despite this, there is a paucity of literature on Paget's disease of the vulva (VPD). A Cochrane meta-analysis could not draw any conclusions on interventions in VPD. Our aim was to review our practice and improve further management of VPD in our center. METHODS: We reviewed all the cases presented to Leeds Gynaecological Oncology Centre between 1988 and 2016...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28430185/phospholipase-c%C3%AE-1-regulates-p38-mapk-activity-and-skin-barrier-integrity
#2
Kaori Kanemaru, Yoshikazu Nakamura, Kengo Totoki, Takatsugu Fukuyama, Madoka Shoji, Hisae Kaneko, Kanako Shiratori, Atsuko Yoneda, Takafumi Inoue, Yoichiro Iwakura, Kenji Kabashima, Kiyoko Fukami
Keratinocytes undergo a unique type of programmed cell death known as cornification, which leads to the formation of the stratum corneum (SC), the main physical barrier of the epidermis. A defective epidermal barrier is a hallmark of the two most common inflammatory skin disorders, psoriasis, and atopic dermatitis. However, the detailed molecular mechanisms of skin barrier formation are not yet fully understood. Here, we showed that downregulation of phospholipase C (PLC) δ1, a Ca(2+)-mobilizing and phosphoinositide-metabolizing enzyme abundantly expressed in the epidermis, impairs the barrier functions of the SC...
April 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28389593/cxcl17-attenuates-imiquimod-induced-psoriasis-like-skin-inflammation-by-recruiting-myeloid-derived-suppressor-cells-and-regulatory-t-cells
#3
Tomonori Oka, Makoto Sugaya, Naomi Takahashi, Takehiro Takahashi, Sayaka Shibata, Tomomitsu Miyagaki, Yoshihide Asano, Shinichi Sato
CXCL17 is expressed in a variety of cancers and promotes tumor progression by recruiting myeloid-derived suppressor cells (MDSCs). MDSCs suppress tumor immunity by attracting regulatory T cells (Tregs) into tumor sites through CCL5. In this study, we examined the role of CXCL17 in skin disorders. CXCL17 mRNA levels in psoriasis skin, but not in lesional skin of atopic dermatitis or cutaneous T cell lymphoma, were significantly higher than those in normal skin. CXCL17 was mainly expressed in the epidermis, and IFN-γ dose-dependently increased CXCL17 expression by human keratinocytes in vitro...
April 7, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28377495/rig-i-antiviral-signaling-drives-interleukin-23-production-and-psoriasis-like-skin-disease
#4
Huiyuan Zhu, Fangzhou Lou, Qianqian Yin, Yuanyuan Gao, Yang Sun, Jing Bai, Zhenyao Xu, Zhaoyuan Liu, Wei Cai, Fang Ke, Lingyun Zhang, Hong Zhou, Hong Wang, Gang Wang, Xiang Chen, Hongxin Zhang, Zhugang Wang, Florent Ginhoux, Chuanjian Lu, Bing Su, Honglin Wang
Retinoic acid inducible-gene I (RIG-I) functions as one of the major sensors of RNA viruses. DDX58, which encodes the RIG-I protein, has been newly identified as a susceptibility gene in psoriasis. Here, we show that the activation of RIG-I by 5'ppp-dsRNA, its synthetic ligand, directly causes the production of IL-23 and triggers psoriasis-like skin disease in mice. Repeated injections of IL-23 to the ears failed to induce IL-23 production and a full psoriasis-like skin phenotype, in either germ-free or RIG-I-deficient mice...
April 4, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28373917/leflunomide-in-the-treatment-of-a-pseudotumoral-genital-herpes-simplex-virus-infection-in-an-hiv-patient
#5
Marie R Roger, Gregory M Anstead
The patient is a 52-year-old African American man with a past medical history of HIV infection (on antiretroviral therapy, CD4 count 399 cells/µL, and undetectable HIV viral load) and recurrent genital herpes. While on valacyclovir, the patient presented with four tumorous lesions on the perineum and scrotum. A biopsy specimen stained positively with HSV-1 and HSV-2 immunostains and displayed a lymphoplasmacytic infiltrate. The patient received foscarnet and imiquimod for two weeks with minimal improvement...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28370183/a-network-meta-analysis-of-non-melanoma-skin-cancer-nmsc-treatments-efficacy-and-safety-assessment
#6
Renrong Lv, Qian Sun
The mainstream treatments for non-melanoma skin cancer (NMSC) include photodynamic therapy (PDT), surgery excision (SE), cryotherapy (CT), imiquimod (IM), radiotherapy (RT), 5-fluorouracil (FU) and vehicle (VE). Our network meta-analysis (NMA) was aimed at evaluating the efficacy and safety of these seven treatments and providing superior ones. After searching the trials from Embase and PubMed and screening with our criteria, we conducted the NMA with software R 3.2.3 and STATA 13.0. Complete lesion response (CLR), complete lesion clearance (CLC), cumulative recurrence probabilities (CRP) and adverse effects (AEs) were considered as outcomes and displayed as odds ratios (ORs) and 95% credible intervals (CrI)...
March 29, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28369728/imiquimod-treatment-for-lentigo-maligna-limit-1-trial
#7
N G Maher, P Guitera
We read with interest the methods and results of the LIMIT-1 trial regarding primary imiquimod treatment for lentigo maligna (LM) in the journal.(1) We applaud the authors for using histopathology from a resective specimen as the reference standard. This article is protected by copyright. All rights reserved.
March 29, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28367259/united-states-food-and-drug-administration-product-label-changes
#8
Leon Kircik, Julie C Sung, Linda Stein-Gold, Gary Goldenberg
Once a drug has been approved by the United States Food and Drug Administration and is on the market, the Food and Drug Administration communicates new safety information through product label changes. Most of these label changes occur after a spontaneous report to either the drug manufacturing companies or the Food and Drug Administration MedWatch program. As a result, 400 to 500 label changes occur every year. Actinic keratosis treatments exemplify the commonality of label changes throughout the postmarket course of a drug...
February 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28366926/successful-treatment-of-rosai-dorfman-disease-using-in-situ-photoimmunotherapy
#9
Meng Li, Lei Shi, Min Luo, Jia Chen, Bo Wang, Fuhe Zhang, Uma Keyal, Anil Kumar Bhatta, Wei R Chen, Xiuli Wang
Rosai-Dorfman disease is difficult to cure. In situ photoimmunotherapy combines local photothermal therapy with immunoadjuvant. In the present case report, a 39-year-old Chinese man with Rosai-Dorfman disease lesions below the left nostril and left preauricular region was treated with in situ photoimmunotherapy. The patient was treated with daily application of topical imiquimod (5%) and laser irradiations every 2 weeks for 8 weeks. After three cycles of treatment, the lesions improved markedly without adverse effects...
March 31, 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28365081/a-possible-role-for-cd26-dppiv-enzyme-activity-in-the-regulation-of-psoriatic-pruritus
#10
Eriko Komiya, Ryo Hatano, Haruna Otsuka, Takumi Itoh, Hiroto Yamazaki, Taketo Yamada, Nam H Dang, Mitsutoshi Tominaga, Yasushi Suga, Utako Kimura, Kenji Takamori, Chikao Morimoto, Kei Ohnuma
BACKGROUND: Psoriasis (PSO) is one of the most common chronic inflammatory skin diseases, and pruritus affects approximately 60-90% of patients with PSO. However, the pathogenesis of pruritus in PSO remains unclear. Dipeptidyl peptidase IV (DPPIV) enzyme activity is involved in the regulation of peptide hormones, chemokines and neurotransmitters. OBJECTIVES: Our aim is to evaluate for a potential association between DPPIV and an increased risk of pruritus, and to identify possible underlying treatment targets in affected patients...
March 10, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28362496/near-infrared-triggered-photodynamic-therapy-with-multi-tasking-upconversion-nanoparticles-in-combination-with-checkpoint-blockade-for-immunotherapy-of-colorectal-cancer
#11
Jun Xu, Ligeng Xu, Chenya Wang, Rong Yang, Qi Zhuang, Xiao Han, Ziliang Dong, Wenwen Zhu, Rui Peng, Zhuang Liu
While immunotherapy has become a highly promising paradigm for cancer treatment in recent years, it has long been recognized that photodynamic therapy (PDT) has the ability to trigger antitumor immune responses. However, conventional PDT triggered by visible light has limited penetration depth, and its generated immune responses may not be robust enough to eliminate tumors. Herein, upconversion nanoparticles (UCNPs) are simultaneously loaded with chlorin e6 (Ce6), a photosensitizer, and imiquimod (R837), a Toll-like-receptor-7 agonist...
March 31, 2017: ACS Nano
https://www.readbyqxmd.com/read/28361609/skin-cancer-symptoms-mechanistic-pathways-and-treatment-rationale-for-therapeutic-delivery
#12
Neha Goyal, Purva Thatai, Bharti Sapra
Cancer is a group of diseases categorized by abandoning escalation and multiplication of abnormal cells. Current topical treatments for skin cancer are mainly in the semisolid dosage forms of 5-fluorouracil, imiquimod, etc. Many surgical treatments are also available these days for the treatment of skin cancer, for example, photodynamic therapy, which is approved by the US FDA. The stratum corneum is the main barrier against permeation of topical formulations developed for skin cancer treatment. Liposomes, thermosensitive stealth liposomes, nanoemulsions and polymeric lipid nanoparticles have been used by several researchers to increase skin permeability...
March 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28356382/limited-presence-of-il-22-binding-protein-a-natural-il-22-inhibitor-strengthens-psoriatic-skin-inflammation
#13
Jérôme C Martin, Kerstin Wolk, Gaëlle Bériou, Ahmed Abidi, Ellen Witte-Händel, Cédric Louvet, Georgios Kokolakis, Lucile Drujont, Laure Dumoutier, Jean-Christophe Renauld, Robert Sabat, Régis Josien
Psoriasis is a chronic inflammatory disease resulting from dysregulated immune activation associated with a large local secretion of cytokines. Among them, IL-22 largely contributes to epithelial remodeling and inflammation through inhibiting the terminal differentiation of keratinocytes and inducing antimicrobial peptides and selected chemokines. The activity of IL-22 is regulated by IL-22 binding protein (IL-22BP); however, the expression and role of IL-22BP in psoriatic skin has remained unknown so far. Here we showed that nonaffected skin of psoriasis patients displayed lower expression of IL-22BP than skin of healthy controls...
March 29, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28349118/vulvar-condylomatosis-after-sex-reassignment-surgery-in-a-male-to-female-transsexual-complete-response-to-imiquimod-cream
#14
Trinidad Labanca, Ivan Mañero
BACKGROUND: The number of patients seeking sex reassignment surgery is increasing. Approximately 1:30,000 adult males and 1: 100,000 adult females seek this procedure. Neovaginal-related disorders after sex reassignment surgery are increasingly more common. Vulvar condylomatosis is the clinical manifestation of HPV 6- and 11 infection in biological women. The same HPV-subtypes are associated with anogenital warts and penile intraepithelial neoplasia in biological men. We aim to present a case of vulvar condylomatosis after sex reassignment surgery in a male-to-female transsexual and its complete response to 5% imiquimod cream...
May 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/28346303/eccrine-syringofibroadenoma-in-association-with-acquired-epidermodysplasia-verruciformis
#15
Timothy Tan, Joan Guitart, Luzheng Lisa Liu, Joaquin C Brieva, Sapna Amin, Monica Rani, Pedram Gerami, Pedram Yazdan
A 75-year-old man with human immunodeficiency virus infection and numerous biopsy-proven warts for 10 years, refractory to cryosurgery, cimetidine, and topical imiquimod, presented with numerous pink to hypopigmented verrucous papules and plaques involving the face, trunk, buttocks, and groin. Laboratory evaluation revealed a CD4 T-cell count of 62 cells per microliter and human immunodeficiency virus viral load of <117 copies per milliliter. Biopsy of a plaque groin lesion was performed. Histopathology revealed vertically oriented anastomosing strands of basaloid epithelium arising from multiple points along the epidermis in a background fibrovascular stroma...
January 3, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28344018/enhanced-topical-penetration-system-exposure-and-anti-psoriasis-activity-of-two-particle-sized-curcumin-loaded-plga-nanoparticles-in-hydrogel
#16
Lin Sun, Zeyu Liu, Lun Wang, Dongmei Cun, Henry H Y Tong, Ru Yan, Xin Chen, Ruibing Wang, Ying Zheng
Psoriasis is an immune-mediated skin disorder, which is triggered by the aberrant activation of dendritic cells in skin. This activation is followed by the complex interaction between the immune cells in the skin and keratinocyte in the epidermis. To improve the conditions of poor aqueous solubility and chemical stability, overcome skin barriers, and enhance in vivo anti-psoriatic activity, curcumin (Cur) loaded poly (lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) were fabricated and administered by topical route to treat imiquimod (IMQ)-induced psoriasis-like mouse model...
March 24, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28342266/increased-number-of-mast-cells-in-the-dermis-in-actinic-keratosis-lesions-effectively-treated-with-imiquimod
#17
Satomi Oyama, Yoko Funasaka, Shin-Ichi Tsuchiya, Seiji Kawana, Hidehisa Saeki
Actinic keratosis (AK) is a cutaneous cancer in situ which develops as a result of excessive exposure to ultraviolet (UV). Toll-like receptor (TLR)7 agonist imiquimod is a topical immune response modifier and is effective for the treatment of non-melanoma skin cancers. Recently, the diagnostic role of the dermatoscope has been reported in the course of treatment of AK. In addition, mast cells are now considered to contribute to both the innate and adaptive immune systems in topical imiquimod therapy. We assessed the effect of imiquimod treatment by dermatoscopic and immunohistochemical findings in 14 patients with a total of 21 AK lesions...
March 24, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28341495/a-phase-2-study-of-tmx-101-intravesical-imiquimod-for-the-treatment-of-carcinoma-in-situ-bladder-cancer
#18
Nicholas M Donin, Karim Chamie, Andrew T Lenis, Allan J Pantuck, Madhu Reddy, Dana Kivlin, Johanna Holldack, Rafaella Pozzi, Gil Hakim, Lawrence I Karsh, Donald L Lamm, Laurence H Belkoff, Arie S Belldegrun, Stuart Holden, Neal Shore
PURPOSE: Imiquimod is a toll-like receptor agonist with proven antitumor activity as a topical treatment for skin cancer. TMX-101 (Vesimune) is a novel liquid formulation of imiquimod optimized for intravesical delivery. The agent demonstrated safety as an intravesical treatment for non-muscle-invasive bladder cancer in a phase 1 clinical trial. We report the results of a phase 2 prospective multicenter clinical trial assessing the safety and activity of TMX-101. MATERIALS AND METHODS: Patients with non-muscle-invasive bladder cancer containing carcinoma in situ were eligible for inclusion...
February 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28339016/paeonol-ameliorates-imiquimod-induced-psoriasis-like-skin-lesions-in-balb-c-mice-by-inhibiting-the-maturation-and-activation-of-dendritic-cells
#19
Yujiao Meng, Mingxing Wang, Xiangjiang Xie, Tingting Di, Jingxia Zhao, Yan Lin, Xiaolong Xu, Ningfei Li, Yating Zhai, Yan Wang, Ping Li
Paeonol, an active component derived from the traditional Chinese medicine Cortex Moutan, possesses anti-inflammatory, analgesic, antioxidant and anti-allergic properties. Psoriasis is a chronic, recurrent, inflammatory dermatosis accompanied by excessive activation of Toll‑like receptors (TLRs) in dendritic cells (DCs), which are primarily responsible for initiating an immune response. We investigated the effect of paeonol on inflammation in an imiquimod (IMQ)-induced psoriasis-like mouse model and murine bone marrow-derived dendritic cells (BMDCs) stimulated by R848...
March 21, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28338767/decreased-cd1d-level-is-associated-with-cd86-over-expression-in-b-cells-from-systemic-lupus-erythematosus
#20
Fei Liu, Jianjian Ji, Xiujun Li, Xiaojing Li, Jingjing Xu, Huimin Yue, Shuli Zhao, Hongye Fan, Yayi Hou
The disorder of B cells is one of the hallmarks of systemic lupus erythematosus (SLE). The activation state indicated by CD86 of B cells from SLE is well known, while the defect of regulatory B cells mediated by CD1d is also responsible for the process of SLE. In the present study, we focused on the relationship between B cell activation mediated by CD86 and B cell regulatory function mediated by CD1d. Our results showed that the level of CD1d in B cells was decreased during the early stages of B6.MRLlpr SLE mice and imiquimod-treated (IMQ-treated) mice, while the level of CD86 was significantly increased at the late stage...
March 3, 2017: Acta Biochimica et Biophysica Sinica
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