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https://www.readbyqxmd.com/read/29150944/toll-like-receptor-signaling-pathway-as-a-potential-therapeutic-target-in-colorectal-cancer
#1
REVIEW
Reyhaneh Moradi-Marjaneh, Seyed Mahdi Hassanian, Hamid Fiuji, Saman Soleimanpour, Gordon A Ferns, Amir Avan, Majid Khazaei
Toll like receptor (TLR) signaling is involved in activating innate and adaptive immune responses and plays a critical role in inflammation-induced diseases such as colorectal cancer (CRC). Dysregulation of this signaling pathway can result in disturbance of epithelial layer hemostasis, chronic inflammatory, excessive repair responses and development of CRC. There is now substantial evidence for the benefit of targeting of this pathway in cancer treatment, and several agents have been approved, such as BCG (Bacillus Calmette Guérin), MPL (monophosphoryl lipid A) and imiquimod...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150600/mapping-tenascin-c-interaction-with-toll-like-receptor-4-reveals-a-new-subset-of-endogenous-inflammatory-triggers
#2
Lorena Zuliani-Alvarez, Anna M Marzeda, Claire Deligne, Anja Schwenzer, Fiona E McCann, Brian D Marsden, Anna M Piccinini, Kim S Midwood
Pattern recognition underpins innate immunity; the accurate identification of danger, including infection, injury, or tumor, is key to an appropriately targeted immune response. Pathogen detection is increasingly well defined mechanistically, but the discrimination of endogenous inflammatory triggers remains unclear. Tenascin-C, a matrix protein induced upon tissue damage and expressed by tumors, activates toll-like receptor 4 (TLR4)-mediated sterile inflammation. Here we map three sites within tenascin-C that directly and cooperatively interact with TLR4...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29150085/pinocembrin-alleviates-cognition-deficits-by-inhibiting-inflammation-in-diabetic-mice
#3
Bing Pei, Jian Sun
Diabetic encephalopathy (DE) is one of the most common diabetic complications in diabetes mellitus and is characterized by cognitive impairment and neuroinflammation. It has been reported that hyperglycemia can induce hippocampal and cortical neuronal damage, which can result in severe spatial learning and memory impairment. Pinocembrin (Pino) has been widely used in the therapy of cancer and other diseases due to its anti-inflammatory, anti-allergic, anti-oxidant, anti-carcinogenic, and anti-viral activities...
November 8, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29148169/antitumor-and-anti-metastatic-mechanisms-of-rhizoma-paridis-saponins-in-lewis-mice
#4
Shuli Man, Hongyan Chai, Jingxia Cui, Jingwen Yao, Long Ma, Wenyuan Gao
Lung cancer is one of the most common causes of death in the world. Rhizoma paridis saponins (RPS) have been found to show inhibition of pulmonary adenoma in previous research. However, the detailed mechanisms of RPS from a holistic view have not been established. In this study, Lewis pulmonary adenoma mice were successfully established to analyze the pathways involved in RPS intervening tumor formation and progression. As a result, RPS inhibited levels of cytokines or receptors such as VEGFD, VEGFR3, RAGE, IL6R, IL17BR, and CXCL16 which were regarded as the initiators induced tumor cell proliferation, adhesion, angiogenesis, and invasion...
November 17, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29147627/stat1-gene-deficient-mice-develop-accelerated-breast-cancer-growth-and-metastasis-which-is-reduced-by-il-17-blockade
#5
Sanjay Varikuti, Steve Oghumu, Mohamad Elbaz, Greta Volpedo, Dinesh K Ahirwar, Pablo C Alarcon, Rachel H Sperling, Ellen Moretti, Marissa S Pioso, Jennifer Kimble, Mohd W Nasser, Ramesh K Ganju, Cesar Terrazas, Abhay R Satoskar
Signal transducer and activator of transcription 1 (STAT1) mediates interferon gamma signaling which activates the expression of various genes related to apoptosis, inflammation, cell cycle and angiogenesis. Several experimental and clinical studies have investigated the role of STAT1 in primary tumor growth in breast cancer; however, its role in tumor metastasis remains to be determined. To determine the role of STAT1 in breast cancer metastasis, we analyzed growth and metastasis in WT or STAT1(-/-) mice orthotopically implanted with metastatic 4T1...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147624/high-cxc-chemokine-receptor-1-level-represents-an-independent-negative-prognosticator-in-non-metastatic-clear-cell-renal-cell-carcinoma-patients
#6
Yu Zhu, Zheng Liu, Yiwei Wang, Hangcheng Fu, Zewei Wang, Huyang Xie, Junyu Zhang, Gaoxiang Li, Bo Dai, Dingwei Ye, Jiejie Xu
CXC chemokine receptor 1 (CXCR1) signaling has been shown as an essential molecular nexus regarding cancer cell proliferation, tumor inflammation, and angiogenesis in clear cell renal cell carcinoma (ccRCC). The aim of this study was to investigate the prognostic significance of CXCR1 in patients with non-metastatic ccRCC. Data from 446 consecutive non-metastatic ccRCC patients, operated between 2003 and 2008 at a single institution, were evaluated retrospectively. The cohort was split into a training set (n = 223) and a validation set (n = 223)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147603/age-estrogen-and-immune-response-in-breast-adenocarcinoma-and-adjacent-normal-tissue
#7
David A Quigley, Andliena Tahiri, Torben Lüders, Margit H Riis, Allan Balmain, Anne-Lise Børresen-Dale, Ida Bukholm, Vessela Kristensen
Chronic inflammation promotes breast tumor growth and invasion by accelerating angiogenesis and tissue remodeling in the tumor microenvironment. There is a complex relationship between inflammation and estrogen, which drives the growth of 70 percent of breast tumors. While low levels of estrogen exposure stimulate macrophages and other inflammatory cell populations, very high levels are immune suppressive. Breast tumor incidence is increased by obesity and age, which interact to influence inflammatory cell populations in normal breast tissue...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147131/transcriptional-activity-of-tumor-necrosis-factor-alpha-gene-in-peripheral-blood-mononuclear-cells-in-patients-with-coronary-slow-flow
#8
Yousef Rasmi, Morteza Bagheri, Sanaz Faramarz-Gaznagh, Mohadeseh Nemati, Mohammad Hasan Khadem-Ansari, Ehsan Saboory, Mir Hossein Seyed-Mohamadzad, Alireza Shirpoor
BACKGROUND: Coronary slow flow (CSF), an angiographic phenomenon that is characterized by a delayed coronary blood flow in the absence of obstructive coronary artery stenosis, is known as a disorder of the coronary microcirculation. Inflammation has an important role in the vascular hemostasis and endothelial dysfunction especially regarding monocyte adhesion and infiltration. Pro-inflammatory cytokines released by inflammatory cells result in endothelial cell dysfunction and cardiovascular diseases...
July 2017: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/29147073/metformin-suppressed-cxcl8-expression-and-cell-migration-in-hek293-tlr4-cell-line
#9
Zhihui Xiao, Wenjun Wu, Vladimir Poltoratsky
Chronic inflammation is associated with cancer. CXCL8 promotes tumor microenvironment construction through recruiting leukocytes and endothelial progenitor cells that are involved in angiogenesis. It also enhances tumor cell proliferation and migration. Metformin, type II diabetes medication, demonstrates anticancer properties via suppressing inflammation, tumor cell proliferation, angiogenesis, and metastasis. This study intended to address the role of metformin in regulation of CXCL8 expression and cell proliferation and migration...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29146996/the-role-of-cxcr3-lrp1-cross-talk-in-the-invasion-of-primary-brain-tumors
#10
Kevin Boyé, Nadège Pujol, Isabel D Alves, Ya-Ping Chen, Thomas Daubon, Yi-Zong Lee, Stephane Dedieu, Marion Constantin, Lorenzo Bello, Marco Rossi, Rolf Bjerkvig, Shih-Che Sue, Andreas Bikfalvi, Clotilde Billottet
CXCR3 plays important roles in angiogenesis, inflammation, and cancer. However, the precise mechanism of regulation and activity in tumors is not well known. We focused on CXCR3-A conformation and on the mechanisms controlling its activity and trafficking and investigated the role of CXCR3/LRP1 cross talk in tumor cell invasion. Here we report that agonist stimulation induces an anisotropic response with conformational changes of CXCR3-A along its longitudinal axis. CXCR3-A is internalized via clathrin-coated vesicles and recycled by retrograde trafficking...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29145524/tumor-necrosis-factor-alpha-signaling-in-trigeminal-ganglion-contributes-to-mechanical-hypersensitivity-in-masseter-muscle-during-temporomandibular-joint-inflammation
#11
Reio Ito, Masamichi Shinoda, Kuniya Honda, Kentaro Urata, Jun Lee, Mitsuru Maruno, Kumi Soma, Shinji Okada, Nobuhito Gionhaku, Koichi Iwata
AIMS: To determine the involvement of tumor necrosis factor alpha (TNFα) signaling in the trigeminal ganglion (TG) in the mechanical hypersensitivity of the masseter muscle during temporomandibular joint (TMJ) inflammation. METHODS: A total of 55 male Sprague-Dawley rats were used. Following injection of Complete Freund's Adjuvant into the TMJ, the mechanical sensitivities of the masseter muscle and the overlying facial skin were measured. Satellite glial cell (SGC) activation and TNFα expression in the TG were investigated immunohistochemically, and the effects of their inhibition on the mechanical hypersensitivity of the masseter muscle were also examined...
November 16, 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/29144391/antimicrobial-peptide-epinecidin-1-modulates-myd88-protein-levels-via-the-proteasome-degradation-pathway
#12
Bor-Chyuan Su, Jyh-Yih Chen
The cationic antimicrobial peptide epinecidin-1 was identified from Epinephelus coioides and possesses multiple biological functions, including antibacterial, antifungal, anti-tumor, and immunomodulatory effects. In addition, epinecidin-1 suppresses lipopolysaccharide (LPS)-induced inflammation by neutralizing LPS and ameliorating LPS/Toll-like receptor (TLR)-4 internalization. However, it is unclear whether the actions of epinecidin-1 depend on the regulation of TLR adaptor protein MyD88 or endogenous TLR signaling antagonists, which include A20, interleukin-1 receptor associated kinase (IRAK)-M, and suppressor of cytokine signaling (SOCS)-1...
November 16, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29144032/microrna-106b-overexpression-alleviates-inflammation-injury-of-cardiac-endothelial-cells-by-targeting-blnk-via-the-nf-%C3%AE%C2%BAb-signaling-pathway
#13
Zhe An, Guang Yang, Wei Nie, Jin Ren, Dan Wang
We aim to investigate whether microRNA-106b (miR-106b) affects the inflammation injury of cardiac endothelial cells (ECs) by targeting B-cell linker (BLNK) via the NF-κB signaling pathway. Human cardiac microvascular endothelial cells (HCMECs) were assigned into the control, hypoxia/reoxygenation (H/R), negative control (NC), pyrrolidine dithiocarbamate (PDTC), miR-106b mimic, miR-106b inhibitor, and si-BLNK and miR-106b inhibitor + si-BLNK groups. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting were conducted for miR-106b expression and expressions of BLNK, interleukin (IL)-6, IL-1β, tumor necrosis factor (TNF)-α, NF-κB, pIκBα, BTK, and PLC-γ2...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29142497/expression-of-ccl2-and-its-receptor-in-activation-and-migration-of-microglia-and-monocytes-induced-by-photoreceptor-apoptosis
#14
ChaoYi Feng, Xin Wang, TianJin Liu, Meng Zhang, GeZhi Xu, YingQin Ni
Purpose: To explore the effect of the CCL2 and CCR2 system on the activation and migration of microglia and monocytes in light-induced photoreceptor apoptosis. Methods: At 1 day, 3 days, 7 days, and 14 days after light exposure, OX42 and ED1 immunostaining were used to label the activation and migration of microglia and monocytes. Double immunostaining of CCL2 with terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), OX42, or glial fibrillary acidic protein (GFAP) was applied to explore the relationships among CCL2, apoptotic photoreceptors, activated microglia and monocytes, and macroglial cells (Müller cells and astrocytes)...
2017: Molecular Vision
https://www.readbyqxmd.com/read/29142375/the-effects-of-atorvastatin-on-inflammatory-responses-and-mortality-in-septic-shock-a-single-center-randomized-controlled-trial
#15
Ratender Kumar Singh, Vikas Agarwal, Arvind Kumar Baronia, Sudeep Kumar, Banani Poddar, Afzal Azim
Aim of the Study: Pleiotropic effect of statins can modulate inflammation in septic shock. We tested the hypothesis whether statins can reduce mortality in septic shock. Patients and Methods: We conducted a randomized double-blinded trial with treatment (40 mg dose of atorvastatin for 7 days) and control (placebo) arm in adult septic shock patients admitted to the Intensive Care Unit. Primary (28-day mortality) and secondary (vasopressor-, ventilation-, and renal replacement therapy-free days) outcomes, with lipid profile and adverse effects, were documented...
October 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29142311/a-standardized-herbal-extract-mitigates-tumor-inflammation-and-augments-chemotherapy-effect-of-docetaxel-in-prostate-cancer
#16
Chin-Hsien Tsai, Sheue-Fen Tzeng, Shih-Chuan Hsieh, Yu-Chih Yang, Yi-Wen Hsiao, Mong-Hsun Tsai, Pei-Wen Hsiao
Activation of the NFκB pathway is often associated with advanced cancer and has thus been regarded as a rational therapeutic target. Wedelia chinensis is rich in luteolin, apigenin, and wedelolactone that act synergistically to suppress androgen receptor activity in prostate cancer. Interestingly, our evaluation of a standardized Wedelia chinensis herbal extract (WCE) concluded its efficacy on hormone-refractory prostate cancer through systemic mechanisms. Oral administration of WCE significantly attenuated tumor growth and metastasis in orthotopic PC-3 and DU145 xenografts...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141888/lung-cancer-associated-pulmonary-hypertension-role-of-microenvironmental-inflammation-based-on-tumor-cell-immune-cell-cross-talk
#17
Soni Savai Pullamsetti, Baktybek Kojonazarov, Samantha Storn, Henning Gall, Ylia Salazar, Janine Wolf, Andreas Weigert, Nefertiti El-Nikhely, Hossein Ardeschir Ghofrani, Gabriele A Krombach, Ludger Fink, Stefan Gattenlöhner, Ulf R Rapp, Ralph Theo Schermuly, Friedrich Grimminger, Werner Seeger, Rajkumar Savai
Dyspnea is a frequent, devastating, and poorly understood symptom of advanced lung cancer. In our cohort, among 519 patients who underwent a computed tomography scan for the diagnosis of lung cancer, 250 had a mean pulmonary artery diameter of >28 mm, indicating pulmonary hypertension (PH). In human lung cancer tissue, we consistently observed increased vascular remodeling and perivascular inflammatory cell accumulation (macrophages/lymphocytes). Vascular remodeling, PH, and perivascular inflammatory cell accumulation were mimicked in three mouse models of lung cancer (LLC1, KRas(LA2) , and cRaf-BxB)...
November 15, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29141125/elevated-proinflammatory-markers-in-22q11-2-deletion-syndrome-are-associated-with-psychosis-and-cognitive-deficits
#18
Ehud Mekori-Domachevsky, Michal Taler, Yehuda Shoenfeld, Michael Gurevich, Polina Sonis, Omri Weisman, Abraham Weizman, Doron Gothelf
OBJECTIVE: 22q11.2 deletion syndrome (22q11.2DS) is a neurogenetic disorder whose phenotype includes high rates of a schizophrenia-like psychotic disorder and immune system abnormalities. Thus, 22q11.2DS is an ideal model for studying the relationship between psychosis and inflammation. The aim of the present study was to identify inflammatory markers that may play a role in the pathophysiologic pathways associated with psychosis and cognitive deficits in 22q11.2DS. METHODS: Forty-nine individuals with 22q11...
November 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29140126/new-insights-into-the-role-of-vitamin-d-in-hepatocellular-carcinoma
#19
Dong-Bo Wu, Meng-Lan Wang, En-Qiang Chen, Hong Tang
In addition to being crucial for host immune defense, vitamin D is involved in cell proliferation, apoptosis, differentiation, inflammation, invasion and metastasis, angiogenesis and micro-RNA modulation. To date, clinical studies have demonstrated that vitamin D deficiency is common not only in patients with chronic liver diseases but also in those with hepatocellular carcinoma (HCC). Experimental studies have also demonstrated that vitamin D and its receptors are related to the occurrence of HCC and the prognoses of patients with HCC...
November 15, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29139296/differential-content-of-proteins-mrnas-and-mirnas-suggests-that-mdsc-and-their-exosomes-may-mediate-distinct-immune-suppressive-functions
#20
Lucia Geis-Asteggiante, Ashton T Belew, Virginia K Clements, Nathan J Edwards, Suzanne Ostrand-Rosenberg, Nagib M El-Sayed, Catherine Fenselau
Myeloid-derived suppressor cells (MDSC) are immature myeloid cells that accumulate in the circulation and the tumor microenvironment of most cancer patients. There, MDSC suppress both adaptive and innate immunity, hindering immunotherapies. The inflammatory milieu often present in cancers facilitates MDSC suppressive activity, causing aggressive tumor progression and metastasis. MDSC from tumor-bearing mice release exosomes, which carry biologically active proteins and mediate some of the immunosuppressive functions characteristic of MDSC...
November 15, 2017: Journal of Proteome Research
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