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https://www.readbyqxmd.com/read/29142419/antipsoriatic-and-anti-inflammatory-studies-of-berberis-aristata-extract-loaded-nanovesicular-gels
#1
Nimisha, Dilshad Ali Rizvi, Zeeshan Fatima, Neema, Chanchal Deep Kaur
Objective: Novel nanovesicular gel of Berberis aristata extract was developed and evaluated for its anti-inflammatory and antipsoriatic activity. Materials and Methods: Transferosomes were prepared using soya phosphatidylcholine and edge activators (Tween 80, Span 80, and sodium deoxycholate) by a modified lipid film hydration technique using rotary evaporator and evaluated for various parameters. The quantification and standardization of extract have been carried out using its alkaloid content as berberine as biomarker...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29141862/the-activation-of-human-dermal-microvascular-cells-by-poly-i-c-lipopolysaccharide-imiquimod-and-odn2395-is-mediated-by-the-fli1-foxo3a-pathway
#2
Lukasz Stawski, Grace Marden, Maria Trojanowska
Endothelial cell (EC) dysfunction has been associated with inflammatory and autoimmune diseases; however, the factors contributing to this dysfunction have not been fully explored. Because activation of TLRs has been implicated in autoimmune diseases, the goal of this study was to determine the effects of TLR ligands on EC function. Human dermal microvascular ECs (HDMECs) treated with TLR3 [Poly(I:C)], TLR4 (LPS), and TLR7 (imiquimod) agonists showed decreased proliferation and a reduced total number of branching tubules in three-dimensional human dermal organoid ex vivo culture...
November 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29139364/advanced-management-of-severe-keloids
#3
REVIEW
Thomas Hagele, Hoka Nyanda, Nishit Patel, Nicole Russell, George Cohen, Christopher Nelson
Keloids negatively impact the health and quality of life of many affected dermatologic patients. Treating keloids is often difficult, and suboptimal responses are frequent. Fortunately, there are many treatment options available to the clinician that may lead to improved clinical outcomes. We present a review of currently available therapeutic options. Intralesional steroid injection remains the first-line treatment for keloids. Imiquimod, direct interferon therapy, or intralesional 5-flurouracil may alleviate the need for excessive corticosteroid therapy...
2017: Skinmed
https://www.readbyqxmd.com/read/29138509/non-thermal-atmospheric-plasma-ameliorates-imiquimod-induced-psoriasis-like-skin-inflammation-in-mice-through-inhibition-of-immune-responses-and-up-regulation-of-pd-l1-expression
#4
Yun Sang Lee, Myung-Hoon Lee, Hang-Jun Kim, Ho-Ryun Won, Chul-Ho Kim
Plasma medicine is an emerging novel therapeutic field. It has been reported that plasma can kill bacteria, promote wound healing and induce apoptosis of tumor cells. However, the effects of plasma on immune cells and immune related skin diseases have not been well studied. In this study, we demonstrated that non-thermal atmospheric plasma (NTP) treatment could inhibit psoriasis-like skin inflammation in mice. NTP treatment in imiquimod-induced psoriasis-like mouse skin inhibited increases in epithelial cell thickness and expression of pro-inflammatory molecules compared to ones without the NTP treatment...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137840/resolvin-d1-attenuates-imiquimod-induced-mice-psoriasiform-dermatitis-through-mapks-and-nf-%C3%AE%C2%BAb-pathways
#5
Juntao Xu, Xiaoru Duan, Feng Hu, Devesh Poorun, Xinxin Liu, Xin Wang, Song Zhang, Lu Gan, Mengwen He, Ke Zhu, Zhangyin Ming, Hongxiang Chen
BACKGROUND: Resolvin D1 (RvD1), a pro-resolution lipid mediator derived from docosahexaenoic acid (DHA), has been described to promote several kinds of inflammatory resolution. However, the effects and anti-inflammatory mechanisms of RvD1 on psoriasis have not been previously reported. OBJECTIVE: The present study aimed to determine the protective effects and the underlying mechanisms of RvD1 on imiquimod (IMQ)-induced psoriasiform dermatitis. METHODS: Mice were topically treated with IMQ to develop psoriasiform dermatitis on their shaved back, pretreated intraperitoneally (i...
November 11, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29137353/mesenchymal-stem-cells-inhibit-rank-rankl-interactions-between-osteoclasts-and-th17-cells-via-osteoprotegerin-activity
#6
Kyung-Ah Cho, Minhwa Park, Yu-Hee Kim, Kyung-Ha Ryu, So-Youn Woo
Th17 cells play a critical role in several autoimmune diseases, including psoriasis and psoriatic arthritis (PsA). Psoriasis is a chronic inflammatory skin disease associated with systemic inflammation and comorbidities, such as PsA. PsA develops in nearly 70% of patients with psoriasis, and osteoclasts associated bone erosion is a hallmark of the disease. Thus far, the effect of Th17 cells on osteoclastogenesis via direct cell-to-cell interactions is less understood. In this study, we observed that Th17 cells directly promote osteoclast differentiation and maturation via expression of receptor activator of nuclear factor-κ β ligand (RANKL) in vitro...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29135982/sting-expression-and-response-to-treatment-with-sting-ligands-in-premalignant-and-malignant-disease
#7
Jason R Baird, Zipeng Feng, Hong D Xiao, David Friedman, Ben Cottam, Bernard A Fox, Gwen Kramer, Rom S Leidner, R Bryan Bell, Kristina H Young, Marka R Crittenden, Michael J Gough
Human papilloma virus positive (HPV+) tumors represent a large proportion of anal, vulvar, vaginal, cervical and head and neck squamous carcinomas (HNSCC) and late stage invasive disease is thought to originate from a premalignant state. Cyclic dinucleotides that activate STimulator of INterferon Genes (STING) have been shown to cause rapid regression of a range of advanced tumors. We aimed to investigate STING ligands as a novel treatment for papilloma. We tested therapies in a spontaneous mouse model of papilloma of the face and anogenital region that histologically resembles human HPV-associated papilloma...
2017: PloS One
https://www.readbyqxmd.com/read/29131032/anti-psoriasis-effects-and-mechanisms-of-%C3%AE-8-quinolinoxy-zinc-phthalocyanine-mediated-photodynamic-therapy
#8
Han-Qing Liu, Ying-Ming Wang, Wan-Fang Li, Chao Li, Zhi-Huan Jiang, Jie Bao, Jin-Feng Wei, Hong-Tao Jin, Ai-Ping Wang
BACKGROUND/AIMS: The aim of this study was to determine the anti-psoriasis effects of α-(8-quinolinoxy) zinc phthalocyanine (ZnPc-F7)-mediated photodynamic therapy (PDT) and to reveal its mechanisms. METHODS: HaCaT cells were used to observe the influence of ZnPc-F7-PDT on cell proliferation in vitro. The in vivo anti-psoriasis effects of ZnPc-F7-PDT were evaluated using a mouse vagina model, a propranolol-induced cavy psoriasis model and an imiquimod (IMQ)-induced nude mouse psoriasis model...
November 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29129599/itk-and-rlk-inhibitor-prn694-improves-skin-disease-in-two-mouse-models-of-psoriasis
#9
Jessica M Fuhriman, Mårten C G Winge, Helena Haberstock-Debic, Jens Oliver Funk, J Michael Bradshaw, M Peter Marinkovich
The chronic and highly prevalent skin disorder psoriasis vulgaris is characterized by a hyperproliferative epidermis and aberrant immune activity. Many studies have highlighted the role of differentiated T lymphocytes in psoriasis progression. Several biologics are currently available that target pro-inflammatory cytokines produced by T-lymphocytes, but the need for improved therapies persists. The small molecule PRN694 covalently binds ITK and RLK, two TEC kinases activated downstream of T lymphocyte activation, both of which are upregulated in psoriatic skin...
November 9, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29115681/imiquimod-5-cream-as-a-therapeutic-option-for-extramammary-paget-s-disease
#10
Masahide Sawada, Junji Kato, Toshiharu Yamashita, Akihiro Yoneta, Tokimasa Hida, Kohei Horimoto, Sayuri Sato, Hisashi Uhara
A wide local excision is the standard treatment for extramammary Paget's disease (EMPD), though this treatment often leads to permanent anogenital mutilation and functional impairment. The purpose of our study is to evaluate the efficacy and safety of the topical application of imiquimod 5% cream for non-invasive EMPD. We examined nine patients with EMPD. Eight of the nine patients were treated with imiquimod 5% cream three times per week for 16 weeks; one case was treated for 6 weeks. The response rate was 100% including five complete remissions...
November 8, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/29111234/exacerbation-and-prolongation-of-psoriasiform-inflammation-in-diabetic-obese-mice-a-synergistic-role-of-cxcl5-and-er-stress
#11
Noriko Shimoura, Hiroshi Nagai, Susumu Fujiwara, Haruki Jimbo, Chikako Nishigori
Accumulating evidence suggests that psoriasis is frequently accompanied by metabolic disorders such as obesity and diabetes. However, the mechanisms underlying the association between increased psoriasis severity and concomitant metabolic syndrome have not been fully clarified. Herein, we show that imiquimod-induced psoriasiform inflammation was exacerbated and prolonged in diabetic obese mice compared to that in control mice, accompanied by remarkably increased lesional expressions of Cxcl5 and Il-1b. Notably, a large number of CXCL5(+) Ly6G(+) cells infiltrated the dermis and subcutaneous fat tissue of the diabetic obese mice...
October 27, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29074858/high-fat-diet-exacerbates-murine-psoriatic-dermatitis-by-increasing-the-number-of-il-17-producing-%C3%AE-%C3%AE-t-cells
#12
Satoshi Nakamizo, Tetsuya Honda, Akimasa Adachi, Takahiro Nagatake, Jun Kunisawa, Akihiko Kitoh, Atsushi Otsuka, Teruki Dainichi, Takashi Nomura, Florent Ginhoux, Koichi Ikuta, Gyohei Egawa, Kenji Kabashima
Psoriasis is a common, chronic inflammatory skin disease characterized by epidermal hyperplasia via the IL-23/IL-17 axis. Various studies have indicated the association between obesity and psoriasis, however, the underlying mechanisms remains unclarified. To this end, we focused on high-fat diet (HFD) in this study, because HFD is suggested as a contributor to obesity, and HFD-fed mice exhibit exacerbated psoriatic dermatitis. Using murine imiquimod (IMQ)-induced psoriasis and HFD-induced obesity models, we have revealed a novel mechanism of HFD-induced exacerbation of psoriatic dermatitis...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29073354/oral-administration-of-vanillin-improves-imiquimod-induced-psoriatic-skin-inflammation-in-mice
#13
Hui-Man Cheng, Feng-Yuan Chen, Chia-Cheng Li, Hsin-Yi Lo, Yi-Fang Liao, Tin-Yun Ho, Chien-Yun Hsiang
Vanillin is one of the most widely used flavoring products worldwide. Psoriasis is a chronic inflammatory skin disorder. The interleukin-23 (IL-23)/interleukin-17 (IL-17) axis plays a critical role in psoriasis. Here, we analyzed the effect of vanillin on imiquimod (IMQ)-induced psoriatic skin inflammation in mice. Mice were treated topically with IMQ on the back skin and orally with various amounts of vanillin for 7 consecutive days. Vanillin significantly improved IMQ-induced histopathological changes of skin in a dose-dependent manner...
November 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29066845/c19-a-c-terminal-peptide-of-cklf1-decreases-inflammation-and-proliferation-of-dermal-capillaries-in-psoriasis
#14
Yi Zheng, Yixuan Wang, Xuan Zhang, Yaqi Tan, Shiguang Peng, Le Chen, Yanling He
Psoriasis is a chronic inflammatory autoimmune disease with undefined etiology. Chemokine-like factor 1 (CKLF1), a human cytokine that is a functional ligand for CCR4, displays chemotactic activities in a wide spectrum of leukocytes and plays an important role in psoriasis development. In previous study, our laboratory found that the expression of CKLF1 increased in psoriatic lesions. C19 as a CKLF1's C-terminal peptide has been reported to exert inhibitory effects on a variety of diseases. However, the protective roles of C19 in endothelial cells proliferation and inflammatory cells chemotaxis remain elusive in psoriasis...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29057249/indoleamine-2-3-dioxygenase-and-survivin-peptide-vaccine-combined-with-temozolomide-in-metastatic-melanoma
#15
Nikolaj Juul Nitschke, Jon Bjoern, Trine Zeeberg Iversen, Mads Hald Andersen, Inge Marie Svane
BACKGROUND: Indoleamine 2,3-dioxygenase (IDO) and survivin have been identified as potential targets for cancer vaccination. In this phase II study a vaccine using the peptides Sur1M2 and IDO5 was combined with the chemotherapy temozolomide (TMZ) for treatment of metastatic melanoma patients. The aim was to simultaneously target several immune inhibiting mechanisms and the highly malignant cells expressing survivin. METHODS: HLA-A2 positive patients with advanced malignant melanoma were treated biweekly with 150 mg/m(2) TMZ daily for 7 days followed by subcutaneous vaccination with 250 µg of each peptide in 500 µL Montanide solution at day 8...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/29054829/poly-i-c-and-imiquimod-induced-immune-responses-and-their-effects-on-the-survival-of-olive-flounder-paralichthys-olivaceus-from-viral-haemorrhagic-septicaemia
#16
Satheesha Avunje, Sung-Ju Jung
The stimulation of immune genes by polyinosinic:polycytidylic acid (poly (I:C)) and imiquimod in olive flounder (Paralichthys olivaceus) and their role in control of viral haemorrhagic septicaemia virus (VHSV) infection were examined. Poly (I:C) (100 μg/fish) treated olive flounder had very low mortality (5%) post VHSV infection, while the imiquimod treated group had 65% and 85% mortality at a dose of 100 μg/fish and 50 μg/fish, respectively. Though the imiquimod treated group had high mortality, it was lower than the untreated group, which had 90% mortality...
October 18, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29054520/anti-psoriatic-and-toxicity-evaluation-of-methotrexate-chitin-nanogel-in-imiquimod-induced-mice-model
#17
Rajitha Panonnummal, M Sabitha
Methotrexate loaded chitin nanogel (MCNG) was formulated for its topical use in psoriasis. MCNG was characterized by DLS, TEM and FTIR. The MCNG particles were spherical in shape with size of 196±14nm, having surface charge of +9.21±0.42 mv. MCNG exhibited greater swelling and drug release at acidic pH than neutral and alkaline conditions. The treatment with MCNG showed significant level of toxicity on HaCaT and THP-1 cells and was taken up well by HaCaT cells as revealed by fluorescent microscopy. MCNGs exhibited significant anti-inflammatory activity as revealed by the inhibitory effects observed on the activity of COX-2 and LOX-5 enzymes expressed in THP-1 cells...
October 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29049372/therapeutic-effect-of-imiquimod-on-dextran-sulfate-sodium-induced-ulcerative-colitis-in-mice
#18
Lu Chen, Zhongyin Zhou, Yan Yang, Na Chen, Hongyu Xiang
BACKGROUND: Imiquimod is a Toll-like receptor-7 agonist that regulates immunity and can be used as an immune adjuvant. Ulcerative colitis has a close correlation with immune disorder. AIM: To investigate the therapeutic effect of imiquimod on dextran sulfate sodium (DSS)-induced colitis and explore the underlying mechanisms. METHODS: C57BL/6J C57 mice received 3% DSS for 7 days to induce ulcerative colitis. Groups of mice were intraperitoneally injected with dexamethasone (DXM, 1...
2017: PloS One
https://www.readbyqxmd.com/read/29046894/fatty-acid-mimetic-micelles-for-dual-delivery-of-antigens-and-imidazoquinoline-adjuvants
#19
Sema Sevimli, Frances C Knight, Pavlo Gilchuk, Sebastian Joyce, John T Wilson
Vaccine design has undergone a shift towards the use of purified protein subunit vaccines, which offer increased safety and greater control over antigen specificity, but at the expense of immunogenicity. Here we report the development of a new polymer-based vaccine delivery platform engineered to enhance immunity through the co-delivery of protein antigens and the Toll-like receptor 7 (TLR7) agonist imiquimod (IMQ). Owing to the preferential solubility of IMQ in fatty acids, a series of block copolymer micelles with a fatty acid-mimetic core comprising lauryl methacrylate (LMA) and methacrylic acid (MAA), and a poly(ethylene glycol) methyl ether methacrylate (PEGMA) corona decorated with pyridyl disulfide ethyl methacrylate (PDSM) moieties for antigen conjugation were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization...
February 13, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/29045820/five-year-results-of-a-randomized-controlled-trial-comparing-effectiveness-of-photodynamic-therapy-topical-imiquimod-and-topical-5-fluorouracil-in-patients-with-superficial-basal-cell-carcinoma
#20
Maud H E Jansen, Klara Mosterd, Aimee H M M Arits, Marieke H Roozeboom, Anja Sommer, Brigitte A B Essers, Han P A van Pelt, Patricia J F Quaedvlieg, Peter M Steijlen, Patty J Nelemans, Nicole W J Kelleners-Smeets
For the treatment of superficial basal cell carcinoma, a prospective non-inferiority randomized controlled multicenter trial with 601 patients showed that 5% imiquimod cream was superior and 5-fluorouracil cream not inferior to methyl aminolevulinate photodynamic therapy (MAL-PDT) at one and three year post-treatment. No definite conclusion could be drawn regarding the superiority of imiquimod over 5-fluorouracil. We now present the five-year follow-up results according to the intention-to-treat analysis. Five years post-treatment the probability of tumor-free survival was 62...
October 15, 2017: Journal of Investigative Dermatology
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