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LL37 and tumor

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https://www.readbyqxmd.com/read/26664119/enhanced-antitumor-effects-by-docetaxel-ll37-loaded-thermosensitive-hydrogel-nanoparticles-in-peritoneal-carcinomatosis-of-colorectal-cancer
#1
Rangrang Fan, Aiping Tong, Xiaoling Li, Xiang Gao, Lan Mei, Liangxue Zhou, Xiaoning Zhang, Chao You, Gang Guo
Intraperitoneal chemotherapy was explored in clinical trials as a promising strategy to improve the therapeutic effects of chemotherapy. In this work, we developed a biodegradable and injectable drug-delivery system by coencapsulation of docetaxel (Doc) and LL37 peptide polymeric nanoparticles (Doc+LL37 NPs) in a thermosensitive hydrogel system for colorectal peritoneal carcinoma therapy. Firstly, polylactic acid (PLA)-Pluronic L35-PLA (PLA-L35-PLA) was explored to prepare the biodegradable Doc+LL37 NPs using a water-in-oil-in-water double-emulsion solvent-evaporation method...
2015: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/26371257/identification-of-thiostrepton-as-a-novel-inhibitor-for-psoriasis-like-inflammation-induced-by-tlr7-9
#2
Chao-Yang Lai, Da-Wei Yeh, Chih-Hao Lu, Yi-Ling Liu, Li-Rung Huang, Cheng-Yuan Kao, Huan-Yuan Chen, Chi-Ying F Huang, Chung-Hsing Chang, Yunping Luo, Rong Xiang, Tsung-Hsien Chuang
Activation of TLR7-9 has been linked to the pathogenesis of autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, and psoriasis. Thus, therapeutic applications of antagonists of these TLRs for such disorders are being investigated. Bortezomib (Velcade) is a proteasome inhibitor known to suppress activation of these TLRs. To identify novel TLR7-9 inhibitors, we searched the Gene Expression Omnibus database for gene expression profiles of bortezomib-treated cells. These profiles were then used to screen the Connectivity Map database for chemical compounds with similar functions as bortezomib...
October 15, 2015: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/25412780/the-immunopathogenesis-of-psoriasis
#3
REVIEW
Jaehwan Kim, James G Krueger
Psoriasis vulgaris is a chronic inflammatory skin disease that results from the complex interplay between keratinocytes, dendritic cells, and T cells. Keratinocytes trigger innate and adaptive immune responses. Dermal myeloid dendritic cells regulate T cell activation and production of cytokines and chemokines that amplify inflammation. Most of the psoriatic T cells discretely produce interferon-γ, interleukin (IL)-17, and IL-22. The initiation phase of psoriasis involves Toll-like receptors, antimicrobial peptide LL37, and plasmacytoid dendritic cells...
January 2015: Dermatologic Clinics
https://www.readbyqxmd.com/read/25108222/aspergillus-fumigatus-triggers-innate-immune-response-via-nod1-signaling-in-human-corneal-epithelial-cells
#4
Yuting Zhang, Jiayin Wu, Zhaoting Xin, Xinyi Wu
Fungal keratitis is a serious vision-threatening disease caused by fungi after corneal epithelium damage. We have previously shown a role of cell surface TLRs in Aspergillus fumigatus (A. fumigatus) keratitis. In the present study we showed that Human telomerase-immortalized corneal epithelial cells (HCECs) exposed to A. fumigatus elicited an inflammatory response consisting in increased interleukin-6 (IL-6), IL-8 and tumor necrosis factor (TNF)-α expression and innate defense molecules hBD2 and LL37 in a time-dependent manner...
October 2014: Experimental Eye Research
https://www.readbyqxmd.com/read/22674298/the-over-expression-of-cathelicidin-peptide-ll37-in-head-and-neck-squamous-cell-carcinoma-the-peptide-marker-for-the-prognosis-of-cancer
#5
Kamaldeep Gill, Bidhu Kalyan Mohanti, Abhay Kumar Singh, Biswajit Mishra, Sharmistha Dey
The over expression of LL37, an antimicrobial peptide belonging~to the cathelicidin family has implication in the progression of human malignancy but the exact role is still not clear. This study aims to elucidate the correlation of LL37 with Head and Neck Squamous Cell Carcinoma (HNSCC) and the consequences of radiotherapy on it. The LL37 levels were quantified in serum samples of control and HNSCC patients at pre-RT, during-RT and post-RT using a real time Surface Plasmon Resonance technology and ELISA. The LL37 of 50 HNSCC patients was significantly (p < 0...
0: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/22163327/epithelial-cells-activate-plasmacytoid-dendritic-cells-improving-their-anti-hiv-activity
#6
Christian Rodriguez Rodrigues, Mercedes Cabrini, Federico Remes Lenicov, Juan Sabatté, Ana Ceballos, Carolina Jancic, Silvina Raiden, Matías Ostrowski, Claudia Silberstein, Jorge Geffner
Plasmacytoid dendritic cells (pDCs) play a major role in anti-viral immunity by virtue of their ability to produce high amounts of type I interferons (IFNs) and a variety of inflammatory cytokines and chemokines in response to viral infections. Since recent studies have established that pDCs accumulate at the site of virus entry in the mucosa, here we analyzed whether epithelial cells were able to modulate the function of pDCs. We found that the epithelial cell lines HT-29 and Caco-2, as well as a primary culture of human renal tubular epithelial cells (HRTEC), induced the phenotypic maturation of pDCs stimulating the production of inflammatory cytokines...
2011: PloS One
https://www.readbyqxmd.com/read/21278351/human-serum-amyloid-p-functions-as-a-negative-regulator-of-the-innate-and-adaptive-immune-responses-to-dna-vaccines
#7
Yue Wang, Yingjun Guo, Xiaohui Wang, Jinfeng Huang, Jingli Shang, Shuhan Sun
The utility of DNA vaccines has been limited by their failure to elicit sufficiently potent immune responses in many human applications, whereas DNA vaccinations in mice have been very successful. However, the underlying mechanisms remain unknown. We hypothesize that serum amyloid P component (SAP), which has a species-specific, DNA-binding ability, contributes to the differences between human and mice and then limits DNA vaccine's efficacy in vivo. In our study, DNA vaccine-induced adaptive immune responses were also significantly decreased in the human SAP (hSAP) transgenic mice...
March 1, 2011: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/16270724/modulation-of-toll-like-receptor-7-and-ll-37-expression-in-colon-and-breast-epithelial-cells-by-human-beta-defensin-2
#8
Nora Stroinigg, Maya D Srivastava
Breast-feeding decreases maternal breast cancer risk. Breast-fed infants have fewer infections and inflammatory-allergic diseases. We recently found inducible antimicrobial and immunomodulatory protein human beta3-defensin 2 (HBD-2) in significant amounts in human milk. We investigated if HBD-2 could contribute to benefits of breast-feeding for the mother and the child by immunomodulating effects on breast and gut epithelial cells. Human CaCo-2 colon and MCF-7 breast cell lines were cultured for 16-48 hours in RPMI 1640 5% fetal calf serum with and without HBD-2 at 0...
July 2005: Allergy and Asthma Proceedings:
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