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https://www.readbyqxmd.com/read/28103628/treatment-of-a-vulvar-paget-s-disease-by-photodynamic-therapy-with-a-new-light-emitting-fabric-based-device
#1
Claire Vicentini, Olivier Carpentier, Fabienne Lecomte, Elise Thecua, Laurent Mortier, Serge R Mordon
INTRODUCTION: The non-invasive vulvar Paget's disease is an intra-epidermal carcinoma with glandular characteristics. It appears like an erythematous plaque. The main symptoms are pruritus and pain. The standard treatment is surgical excision in depth. This treatment is complicated with a severe morbidity and photodynamic therapy can be an alternative choice. However, the pain experienced during the photodynamic treatment of vulvar lesion is intense and leads to a premature interruption of the treatment...
January 19, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28101025/giant-basal-cell-carcinomas-arising-on-the-bilateral-forearms-of-a-patient-a-case-report-and-review-of-nonsurgical-treatment-options
#2
Sarah Shangraw, Rivka C Stone, Jeong Hee Cho-Vega, Robert S Kirsner
Giant basal cell carcinomas (GBCCs) are large basal cell carcinomas (BCCs; <5 cm) with a greater propensity to invade and metastasize than standard BCCs. The presence of 2 GBCCs in a single individual is rare. We present the case of a 71-year-old Caucasian male with bilateral GBCCs on the dorsal forearms, measuring 130 cm(2) and 24 cm(2), respectively, that developed over a 21-year period. Over this period, the patient treated the tumors with herbal remedies. Histologic evaluation showed a conventional nodular BCC for both tumors...
September 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28101021/late-onset-multiple-self-healing-squamous-epithelioma-ferguson-smith-recurrence-induced-by-radiotherapy
#3
Laurence Feldmeyer, Ildiko Szeverényi, Michèle Mandallaz, E Birgit Lane, Daniel Hohl
We report the case of a woman in her 60s with confirmed multiple self-healing squamous epitheliomas (MSSE) Ferguson-Smith. After recurrences following surgery and radiotherapy, the patient was successfully treated with minimal surgical intervention combined with intralesional injections of triamcinolone acetate. The histological comparison between mature and regressed keratoacanthomas (KA) revealed an increased inflammatory infiltrate with numerous plasmacytoid dendritic cells in the regressed KA in comparison to the mature one, speaking in favor of an inflammation-mediated regression process...
September 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28099598/dermatoscopy-guided-therapy-of-pigmented-basal-cell-carcinoma-with-imiquimod
#4
Husein Husein-ElAhmed, Maria Antonia Fernandez-Pugnaire
BACKGROUND: Dermatoscopy is a non-invasive diagnostic tool used to examine skin lesions with an optical magnification. It has been suggested as a useful tool for monitoring therapeutic response in lentigo maligna patients treated with imiquimod. OBJECTIVE: To examine the accuracy of dermatoscopy as a tool to monitor the therapeutic response of pigmented basal cell carcinoma treated with imiquimod. METHOD: The authors designed a prospective study...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28096316/bay-11-7082-inhibits-the-nf-kb-and-nlrp3-inflammasome-pathways-and-protects-against-imq-induced-psoriasis
#5
Natasha Irrera, Mario Vaccaro, Alessandra Bitto, Giovanni Pallio, Gabriele Pizzino, Maria Lentini, Vincenzo Arcoraci, Letteria Minutoli, Michele Scuruchi, Giuseppina Cutroneo, Giuseppe Pio Anastasi, Roberta Ettari, Francesco Squadrito, Domenica Altavilla
BAY 11-7082 antagonizes I-κB kinase-β preventing nuclear translocation of NF-κB; it also inhibits NLRP3 inflammasome activation.NF-κB is involved in psoriasis, while the role of NLRP3 is controversial. We investigated BAY 11-7082 effects in an experimental model of psoriasis-like dermatitis. Psoriasis-like lesions were induced by a topical application of imiquimod cream (IMQ; 62.5 mg/day) on the shaved back skin of C57BL/6 and NLRP3 knock-out mice for 7 consecutive days. Sham psoriasis animals were challenged with vaseline cream...
January 17, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28088184/anti-hepatitis-b-virus-hbv-response-of-imiquimod-based-toll-like-receptor-7-ligand-in-hbv-positive-human-hepatocelluar-carcinoma-cell-line
#6
Dipanwita Das, Isha Sengupta, Neelakshi Sarkar, Ananya Pal, Debraj Saha, Manikankana Bandopadhyay, Chandrima Das, Jimmy Narayan, Shivaram Prasad Singh, Sekhar Chakrabarti, Runu Chakravarty
BACKGROUND: Toll like receptors (TLRs) play an important role in innate immunity and various studies suggest that TLRs play a crucial role in pathogenesis of hepatitis B virus (HBV) infection. The present study aims in looking into the status of crucial host and viral gene expression on inciting TLR7. METHODS: The transcription of TLR7 pathway signaling molecules and HBV DNA viral load were quantified by Real Time-PCR after stimulation of TLR7 with its imiquimod based ligand, R837...
January 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28063039/xenotransplantation-model-of-psoriasis
#7
Jeremy Di Domizio, Curdin Conrad, Michel Gilliet
Psoriasis is a chronic autoimmune skin disease affecting approximately 2 % of the population with a major psychosocial and socioeconomic impact. A causal therapy leading to permanent cure is not available, and current treatments only lead to limited amelioration, and therefore new therapeutic targets need to be identified. Recent works demonstrated a predominant role of TH17 cells in the pathogenesis of psoriasis; yet the underlying molecular mechanisms driving the development of the disease are still largely elusive...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28063038/surgical-denervation-in-the-imiquimod-induced-psoriasiform-mouse-model
#8
Armanda J Onderdijk, Ineke M Hekking-Weijma, Edwin F Florencia, Errol P Prens
Psoriasis is a chronic inflammatory skin disease with a prevalence of 2-3 %. It appears to result from a combination of genetic and environmental factors, but the precise pathogenesis is still unknown. Neurogenic inflammation is involved in psoriasis pathogenesis as well, but the role of neurogenic factors is currently unclear. Molecular studies often involve material obtained from patients. However, many questions and especially experimental manipulations are not suited for study in humans. Imiquimod application on mouse skin leads to immune cell infiltration, inflammation with intense redness, epidermal thickening, and scaling that jointly greatly resembles human psoriasis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28052238/anti-psoriatic-potential-of-solanum-xanthocarpum-stem-in-imiquimod-induced-psoriatic-mice-model
#9
Komal M Parmar, Prakash R Itankar, Apurva Joshi, Satyendra K Prasad
ETHNOPHARMACOLOGICAL RELEVANCE: The plant Solanum xanthocarpum Schrad. & Wendl. (Solanaceae) is one of the members of the dashamula (ten roots) in Ayurvedic system of medicine. The stem and fruits are used as an antipyretic, antiasthmatic and is prescribed in skin infections and for relief in burning sensation in the feet accompanied by vesicular eruptions. OBJECTIVE: To scientifically validate the anti-psoriatic potential of Solanum xanthocarpum stem in Imiquimod-induced psoriatic mice model MATERIALS AND METHODS: Ethanolic stems extract of Solanum xanthocarpum (ESX) was first subjected to phytochemical screening and quantification of identified phytoconstituents, which was further standardized with the help of HPTLC using chlorogenic acid as a marker...
January 1, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28040822/topical-imiquimod-clears-invasive-melanoma
#10
Brittany E Grady, James M Spencer
Malignant melanoma has continually shown a pattern of increased incidence and mortality in the last 50 years. Currently, wide local excision is the mainstay of treatment of primary cutaneous melanomas. Imiquimod has been shown to clear cases of melanoma in situ, but its role in the treatment of invasive cutaneous melanomas is unknown. We present the case of a patient who achieved complete histologic clearance of invasive melanoma following treatment with topical imiquimod.
November 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28003376/selective-irak4-inhibition-attenuates-disease-in-murine-lupus-models-and-demonstrates-steroid-sparing-activity
#11
Shailesh Dudhgaonkar, Sourabh Ranade, Jignesh Nagar, Siva Subramani, Durga Shiv Prasad, Preethi Karunanithi, Ratika Srivastava, Kamala Venkatesh, Sabariya Selvam, Prasad Krishnamurthy, T Thanga Mariappan, Ajay Saxena, Li Fan, Dawn K Stetsko, Deborah A Holloway, Xin Li, Jun Zhu, Wen-Pin Yang, Stefan Ruepp, Satheesh Nair, Joseph Santella, John Duncia, John Hynes, Kim W McIntyre, Julie A Carman
The serine/threonine kinase IL-1R-associated kinase (IRAK)4 is a critical regulator of innate immunity. We have identified BMS-986126, a potent, highly selective inhibitor of IRAK4 kinase activity that demonstrates equipotent activity against multiple MyD88-dependent responses both in vitro and in vivo. BMS-986126 failed to inhibit assays downstream of MyD88-independent receptors, including the TNF receptor and TLR3. Very little activity was seen downstream of TLR4, which can also activate an MyD88-independent pathway...
December 21, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27989922/well-defined-star-polymers-for-co-delivery-of-plasmid-dna-and-imiquimod-to-dendritic-cells
#12
Wenjing Lin, Samuel Hanson, Wenqing Han, Xiaofang Zhang, Na Yao, Hongru Li, Lijuan Zhang, Chun Wang
Co-delivery of antigen-encoding plasmid DNA (pDNA) and immune-modulatory molecules has importance in advancing gene-based immunotherapy and vaccines. Here novel star polymer nanocarriers were synthesized for co-delivery of pDNA and imiquimod (IMQ), a poorly soluble small-molecule adjuvant, to dendritic cells. Computational modeling and experimental results revealed that the polymers formed either multimolecular or unimolecular core-shell-type micelles in water, depending on the nature of the outer hydrophilic shell...
October 27, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27987308/a-systematic-review-on-the-role-of-imiquimod-in-lentigo-maligna-and-lentigo-maligna-melanoma-need-for-standardization-of-treatment-schedule-and-outcome-measures
#13
REVIEW
D Tio, J van der Woude, C A C Prinsen, E P Jansma, R Hoekzema, C van Montfrans
BACKGROUND: Lentigo maligna (LM) is an in situ variant of melanoma. Our objective was to systematically review clinical and histological clearance and recurrence rates of imiquimod treatment of LM with emphasis on progression to lentigo maligna melanoma (LMM). METHODS: PubMed, EMBASE and the Cochrane library were searched from inception to May 2015. Articles were included if they described histologically proven LM treated with imiquimod 5% monotherapy or combined with another topical therapy...
December 17, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27986151/leishmania-tropica-combined-debulking-and-imiquimod-for-the-treatment-of-nonresponsive-cutaneous-leishmaniasis
#14
Laura A Taylor, Rachel Gormley, Carrie Kovarik
No abstract text is available yet for this article.
January 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27984325/pseudocarcinomatous-epithelial-hyperplasia-induced-by-imiquimod-a-mimic-of-cutaneous-squamous-cell-carcinoma
#15
Manuel Valdebran, Isaac Neuhaus, Jeffrey North
No abstract text is available yet for this article.
December 15, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27984001/psoriatic-inflammation-enhances-allergic-airway-inflammation-through-il-23-stat3-signaling-in-a-murine-model
#16
Ahmed Nadeem, Naif O Al-Harbi, Mushtaq A Ansari, Mohammed M Al-Harbi, Ahmed M El-Sherbeeny, Khairy M A Zoheir, Sabry M Attia, Mohamed M Hafez, Othman A Al-Shabanah, Sheikh F Ahmad
Psoriasis is an autoimmune inflammatory skin disease characterized by activated IL-23/STAT3/Th17 axis. Recently psoriatic inflammation has been shown to be associated with asthma. However, no study has previously explored how psoriatic inflammation affects airway inflammation. Therefore, this study investigated the effect of imiquimod (IMQ)-induced psoriatic inflammation on cockroach extract (CE)-induced airway inflammation in murine models. Mice were subjected to topical and intranasal administration of IMQ and CE to develop psoriatic and airway inflammation respectively...
January 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27982014/monocyte-derived-inflammatory-langerhans-cells-and-dermal-dendritic-cells-mediate-psoriasis-like-inflammation
#17
Tej Pratap Singh, Howard H Zhang, Izabela Borek, Peter Wolf, Michael N Hedrick, Satya P Singh, Brian L Kelsall, Bjorn E Clausen, Joshua M Farber
Dendritic cells (DCs) have been implicated in the pathogenesis of psoriasis but the roles for specific DC subsets are not well defined. Here we show that DCs are required for psoriasis-like changes in mouse skin induced by the local injection of IL-23. However, Flt3L-dependent DCs and resident Langerhans cells are dispensable for the inflammation. In epidermis and dermis, the critical DCs are TNF-producing and IL-1β-producing monocyte-derived DCs, including a population of inflammatory Langerhans cells. Depleting Ly6C(hi) blood monocytes reduces DC accumulation and the skin changes induced either by injecting IL-23 or by application of the TLR7 agonist imiquimod...
December 16, 2016: Nature Communications
https://www.readbyqxmd.com/read/27964879/activation-of-langerhans-cells-promotes-the-inflammation-in-imiquimod-induced-psoriasis-like-dermatitis
#18
Chunying Xiao, Zhenlai Zhu, Shuhong Sun, Jixin Gao, Meng Fu, Yufeng Liu, Gang Wang, Xu Yao, Wei Li
BACKGROUND: Langerhans cells (LCs) are epidermis-resident dendritic cells that sense and mediate stimuli from skin and outside world, and participate in various skin diseases, playing either pro-inflammatory or regulatory roles. However, the exact function of LCs in the pathogenesis of psoriasis remains unclear, and the conclusions of previous studies are controversial. OBJECTIVES: To explore the role of LCs in mouse model of imiquimod (IMQ)-induced psoriasis-like dermatitis using langerin-diphtheria toxin A (DTA) mice that are constitutively deficient in LCs...
December 5, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27955901/the-snowballing-literature-on-imiquimod-induced-skin-inflammation-in-mice-a-critical-appraisal
#19
Jason E Hawkes, Johann E Gudjonsson, Nicole L Ward
Since 2009, the imiquimod- or Aldara-induced (3M Pharmaceuticals, St. Paul, MN) model of acute skin inflammation has become the most widely used mouse model in preclinical psoriasis studies. Although this model offers researchers numerous benefits, there are important limitations and possible confounding variables to consider. The imiquimod model requires careful consideration and warrants scrutiny of the data generated by its use. In this perspective, we provide an overview of the advantages and disadvantages of this mouse model and offer suggestions for its use in psoriasis research...
December 9, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27943421/trim21-is-important-in-the-early-phase-of-inflammation-in-the-imiquimod-induced-psoriasis-like-skin-inflammation-mouse-model
#20
Hanne Vinter, Ane Langkilde, V Ottosson, Alexander Espinosa, M Wahren-Herlenius, Line Raaby, Claus Johansen, Lars Iversen
Tripartite motif-containing protein 21 (TRIM21) regulates pro-inflammatory cytokines and type I interferons and acts as an autoantigen in certain autoimmune diseases, but TRIM21 has not been investigated in psoriasis. It has been suggested that TRIM21 may have a dual function; In the early phase of inflammation, it may function as a stimulator; but upon immune stimulation, its ubiquitinating mode of action may shift from stabilization to degradation of IRF3 causing inhibition of the immune responses. The imiquimod (IMQ)-induced psoriasis-like mouse model displays features similar to those of human psoriasis...
December 11, 2016: Experimental Dermatology
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