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https://www.readbyqxmd.com/read/28544332/fibroblast-growth-factor-2-protects-against-renal-ischaemia-reperfusion-injury-by-attenuating-mitochondrial-damage-and-proinflammatory-signalling
#1
Xiao-Hua Tan, Xiao-Meng Zheng, Li-Xia Yu, Jian He, Hong-Mei Zhu, Xiu-Ping Ge, Xiao-Li Ren, Fa-Qing Ye, Saverio Bellusci, Jian Xiao, Xiao-Kun Li, Jin-San Zhang
Ischaemia-reperfusion injury (I/RI) is a common cause of acute kidney injury (AKI). The molecular basis underlying I/RI-induced renal pathogenesis and measures to prevent or reverse this pathologic process remains to be resolved. Basic fibroblast growth factor (FGF2) is reported to have protective roles of myocardial infarction as well as in several other I/R related disorders. Herein we present evidence that FGF2 exhibits robust protective effect against renal histological and functional damages in a rat I/RI model...
May 24, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28543404/tumor-necrosis-factor-%C3%AE-induced-apoptosis-in-u937-cells-promotes-cathepsin-d-independent-stefin-b-degradation
#2
Katja Bidovec, Janja Božič, Iztok Dolenc, Boris Turk, Vito Turk, Veronika Stoka
Lysosomal cathepsins were previously found to be involved in tumor necrosis factor-α (TNFα)-induced apoptosis. However, there are opposing views regarding their role as either initiators or amplifiers of the signaling cascade as well as the order of molecular events during this process. In this study, we investigated the role of cathepsin D (catD) in TNFα/cycloheximide-induced apoptosis in U937 human monocytic cells. TNFα-induced apoptosis proceeds through caspase-8 activation, processing of the pro-apoptotic molecule Bid, mitochondrial membrane permeabilization, and caspase-3 activation...
May 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542350/t0001-a-variant-of-tnfr2-fc-fusion-protein-exhibits-improved-fc-effector-functions-through-increased-binding-to-membrane-bound-tnf%C3%AE
#3
Yijun Shen, Gang Li, Chunying Gu, Ben Chen, Aihua Chen, Hua Li, Bei Gao, Chencai Liang, Jingsong Wu, Tong Yang, Li Jin, Yong Su
T0001 is a recombinant human TNFR-Fc fusion protein mutant; it exhibits higher affinity to TNFα than etanercept and is now being tested in a Phase 1 study in China (ClinicalTrials.gov Identifier: NCT02481180). T0001 can inhibit the binding of soluble TNFα (sTNFα) or membrane-bound TNFα (mTNFα) to TNF receptors. When bound to mTNFα, the Fc-bearing TNFα antagonists have the potential to induce Fc-mediated effects, such as antibody-dependent cellular cytotoxicity (ADCC) and complement-mediated cytotoxicity (CDC) as well as outside-to-inside signals (apoptosis mainly)...
2017: PloS One
https://www.readbyqxmd.com/read/28542284/haemocytes-collected-from-experimentally-infected-pacific-oysters-crassostrea-gigas-detection-of-ostreid-herpesvirus-1-dna-rna-and-proteins-in-relation-with-inhibition-of-apoptosis
#4
Claire Martenot, Ophélie Gervais, Bruno Chollet, Maryline Houssin, Tristan Renault
Recent transcriptomic approaches focused on anti-viral immunity in molluscs lead to the assumption that the innate immune system, such as apoptosis, plays a crucial role against ostreid herpesvirus type 1 (OsHV-1), infecting Pacific cupped oyster, Crassostrea gigas. Apoptosis constitutes a major mechanism of anti-viral response by limiting viral spread and eliminating infected cells. In this way, an OsHV-1 challenge was performed and oysters were monitored at three times post injection to investigate viral infection and host response: 2h (early after viral injection in the adductor muscle), 24h (intermediate time), and 48h (just before first oyster mortality record)...
2017: PloS One
https://www.readbyqxmd.com/read/28539723/antimicrobial-and-anti-inflammatory-effects-of-ethanol-extract-of-corylopsis-coreana-uyeki-flos
#5
Da-Eon Park, In-Soo Yoon, Jung-Eun Kim, Ji-Hye Seo, Jin-Cheol Yoo, Chun-Sik Bae, Chang-Dai Lee, Dae-Hun Park, Seung-Sik Cho
BACKGROUND: Corylopsis coreana Uyeki (Hamamelidaceae) is a medicinal plant cultivated in Northeast Asia. Previously, we have reported that an ethanol extract of Corylopsis coreana Uyeki flos (ECCF) contains four active compounds with antioxidant activity. OBJECTIVE: The aim of this study was to investigate the antimicrobial spectrum against infectious bacteria and anti-inflammatory effect of ECCF in a mouse model of acute local inflammation. MATERIALS AND METHODS: In vitro antimicrobial susceptibility was evaluated using standard plate assay technique...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28525841/ll-37-derived-short-antimicrobial-peptide-kr-12-a5-and-its-d-amino-acid-substituted-analogs-with-cell-selectivity-anti-biofilm-activity-synergistic-effect-with-conventional-antibiotics-and-anti-inflammatory-activity
#6
Eun Young Kim, Ganesan Rajasekaran, Song Yub Shin
KR-12-a5 is a 12-meric α-helical antimicrobial peptide (AMP) with dual antimicrobial and anti-inflammatory activities designed from human cathelicidin LL-37. We designed and synthesized a series of d-amino acid-substituted analogs of KR-12-a5 with the aim of developing novel α-helical AMPs that possess higher cell selectivity than KR-12-a5, while maintaining the anti-inflammatory activity. d-amino acid incorporation into KR-12-a5 induced a significant improvement in the cell selectivity by 2.6- to 13.6-fold as compared to KR-12-a5, while maintaining the anti-inflammatory activity...
May 11, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28524018/comparison-of-the-immune-responses-associated-with-experimental-bovine-mastitis-caused-by-different-strains-of-escherichia-coli
#7
Shlomo E Blum, Elimelech D Heller, Shamay Jacoby, Oleg Krifucks, Gabriel Leitner
We studied the mammary immune response to different mammary pathogenic Escherichia coli (MPEC) strains in cows, hypothesising that the dynamics of response would differ. E. coli is a major aetiologic agent of acute clinical bovine mastitis of various degrees of severity with specific strains being associated with persistent infections. We compared challenge with three distinct pathogenic MPEC strains (VL2874, VL2732 and P4), isolated from different forms of mastitis (per-acute, persistent and acute, respectively)...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28522807/traf3-enhances-tcr-signaling-by-regulating-the-inhibitors-csk-and-ptpn22
#8
Alicia M Wallis, Ellie C Wallace, Bruce S Hostager, Zuoan Yi, Jon C D Houtman, Gail A Bishop
The adaptor protein TNF receptor associated factor (TRAF) 3 is required for effective TCR signaling and normal T cell effector functions, and associates with the CD3/CD28 complex upon activation. To determine how TRAF3 promotes proximal TCR signaling, we studied TRAF3-deficient mouse and human T cells, which showed a marked reduction in activating phosphorylation of the TCR-associated kinase Lck. The impact of TRAF3 on this very early signaling event led to the hypothesis that TRAF3 restrains one or both of two known inhibitors of Lck, C-terminal Src kinase (Csk) and protein tyrosine phosphatase N22 (PTPN22)...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521633/cd30-expression-in-pediatric-neoplasms-study-of-585-cases
#9
Jinjun Cheng, Haiqing Zhu, John Kim Choi
CD30 is a member of the tumor necrosis factor receptor superfamily, member 8 (TNFRSF8), and its normal expression is restricted to activated T and B cells. In tumor cells, CD30 expression is most commonly associated with lymphoid malignancies (Hodgkin and non-Hodgkin lymphomas) and is a therapeutic target using anti-CD30 antibody. CD30 expression has been reported also in mostly adult non-lymphoid malignancies, raising the possibility of CD30-targeted therapy for additional tumors. In this study, we examined the incidence of CD30 expression in 251 hematopoietic and 334 non-hematopoietic cases of pediatric tumors...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28513840/histomorphology-and-innate-immunity-during-the-progression-of-osteoarthritis-does-synovitis-affect-cartilage-degradation
#10
Huan Wang, Qingguo Wang, Meijuan Yang, Lili Yang, Weili Wang, Haobin Ding, Dong Zhang, Jing Xu, Xuezhang Tang, Haitao Ding, Qingfu Wang
Osteoarthritis (OA) is a common chronic degenerative disease that affects all joints. At present, the pathological processes and mechanisms of OA are still unclear. Innate immunity, a key player in damage to the structure of the joint and the mechanism by which the host attempts to repair OA, affects all pathological stages of the disease. In the present study, our aim was to assess changes in innate immunity during the pathological processes of OA in articular cartilage (AC) and the synovial membrane (SM), which are the major structures in joints, and to systematically examine the histological changes in AC and SM in mild, moderate and severe cases of OA, in order to further speculate about the manner in which the interactions of AC and SM are facilitated by innate immunity...
May 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28511169/efficiency-comparison-of-tofacitinib-and-budesonid-in-treatment-of-nonspecific-ulcerative-colitis
#11
Andriy M Bratasiuk, Antonina I Niroda
INTRODUCTION: A constant interest to explore NUC is caused by the global trend showing a rise in colitis mobidity rate. According to a series of epidemiological studies, the highest incidence of NUC occurs in young age groups, which leads to significant loss of working capacity and high level of incapacitation. One of the leading roles in the pathogenesis of this disease is reportedly played by immunogenetic theory. To date, the main practical technique of NUC diagnostics is colonoscopy...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28507064/tumor-necrosis-factor-receptor-associated-factor-6-traf6-mediates-ubiquitination-dependent-stat3-activation-upon-salmonella-typhimurium-infection
#12
Hai-Hua Ruan, Zhen Zhang, Su-Ying Wang, Logan M Nickels, Li Tian, Jian-Jun Qiao, Jun Zhu
Salmonella enterica serovar Typhimurium (S Typhimurium) can inject effector proteins into host cells via Type III secretion systems (T3SSs). These effector proteins modulate a variety of host transcriptional responses to facilitate bacterial growth and survival. Here, we show that S Typhimurium infection of host cells specifically induces ubiquitination of tumor necrosis factor receptor-associated factor 6 (TRAF6). This TRAF6 ubiquitination is triggered by the Salmonella pathogenicity island-1 (SPI-I) T3SS effectors SopB and SopE2...
May 15, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28502201/prediction-of-chorioamnionitis-in-cases-of-intraamniotic-infection-by-ureaplasma-urealyticum-in-women-with-very-preterm-premature-rupture-of-membranes-or-preterm-labour
#13
Rocio Revello, María José Alcaide, Daniel Abehsera, María Martin-Camean, Mafalda Sousa E Faro Gomes, Bárbara Alonso-Luque, Jose L Bartha
OBJECTIVES: First, to determinate the frequency of chorioamnionitis and funisitis in cases of intramniotic detection of Ureaplasma urealyticum. And second, to assess the predictive capability of some biological markers in the amniotic fluid of these women to predict histological inflammation. SUBJECTS AND METHODS: We prospectively studied 20 cases of women with premature rupture of membranes or preterm labour (PROM) or preterm labour and intraamniotic detection of Ureaplasma urealyticum...
May 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28499237/the-protective-effect-of-propofol-against-tnf-%C3%AE-induced-apoptosis-was-mediated-via-inhibiting-inos-no-production-and-maintaining-intracellular-ca-2-homeostasis-in-mouse-hippocampal-ht22-cells
#14
Zheng Xu, Yan Lu, Jiaqiang Wang, Xiaowei Ding, Jiawei Chen, Changhong Miao
AIM: Inflammation cytokine tumor necrosis factor-α (TNF-α) induces apoptosis in neuronal cells. We hypothesized that propofol may attenuate TNF-α-induced apoptosis in mouse hippocampal HT22 cells and aimed to explore the underlying mechanisms. METHODS: Mouse hippocampal HT22 cells were pretreated with propofol, and then stimulated with TNF-α. Cell viability was measured by cell counting kit 8 (CCK8). Cell apoptosis was examined by flow cytometry analysis. The effect of propofol on TNF-α-modulated nitric oxide production was measured by a nitrate reductase assay kit, intracellular calcium release and mitochondrial membrane potential (MMP) depolarization were measured by flow cytometry analysis, and the expression of inducible nitric oxide synthase (iNOS), C/EBP homologous protein (CHOP), B-cell lymphoma 2 (Bcl2) family and caspases were detected by Western blot...
May 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28498464/proinflammatory-effects-of-s100a8-a9-via-tlr4-and-rage-signaling-pathways-in-bv-2-microglial-cells
#15
Li Ma, Peng Sun, Jian-Cheng Zhang, Qing Zhang, Shang-Long Yao
S100A8/A9, a heterodimer of the two calcium-binding proteins S100A8 and S100A9, has emerged as an important proinflammatory mediator in acute and chronic inflammation. However, whether S100A8/A9 is implicated in microglial‑induced neuroinflammatory response remains unclear. Here, we found that S100A8/A9 significantly increased the secretion of proinflammatory cytokines inclu-ding tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in cultured BV-2 microglial cells. Inhibition of the Toll-like receptor 4 (TLR4) and the receptor for advanced glycation end-products (RAGE) with C225 and a RAGE-blocking antibody, respectively significantly reduced the secretion of TNF-α and IL-6 from S100A8/A9-stimulated BV-2 microglial cells...
May 12, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28497352/monogenic-periodic-fever-syndromes-treatment-options-for-the-pediatric-patient
#16
REVIEW
Seza Ozen, Selcan Demir
Autoinflammatory diseases are disorders of the innate immune system characterized by uncontrolled inflammation. The most commonly encountered autoinflammatory diseases are the hereditary periodic fever syndromes, which present with fever and other features of the skin, serosal membranes, and musculoskeletal system. The main inherited (monogenic) periodic fever syndromes are familial Mediterranean fever (FMF), cryopyrin-associated periodic syndrome (CAPS), tumor necrosis factor receptor-associated periodic syndrome (TRAPS), and hyperimmunoglobulin D syndrome (HIDS)/mevalonate kinase deficiency (MKD)...
May 11, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28494003/p2y6-receptors-are-involved-in-mediating-the-effect-of-inactivated-avian-influenza-virus-h5n1-on-il-6-cxcl8-mrna-expression-in-respiratory-epithelium
#17
Nawiya Huipao, Suparerk Borwornpinyo, Suwimon Wiboon-Ut, Craig R Campbell, Il-Ha Lee, Siriphun Hiranyachattada, Chonlaphat Sukasem, Arunee Thitithanyanont, Chumpol Pholpramool, David I Cook, Anuwat Dinudom
One of the key pathophysiologies of H5N1 infection is excessive proinflammatory cytokine response (cytokine storm) characterized by increases in IFN-β, TNF-α, IL-6, CXCL10, CCL4, CCL2 and CCL5 in the respiratory tract. H5N1-induced cytokine release can occur via an infection-independent mechanism, however, detail of the cellular signaling involved is poorly understood. To elucidate this mechanism, the effect of inactivated (β-propiolactone-treated) H5N1 on the cytokine and chemokine mRNA expression in 16HBE14o- human respiratory epithelial cells was investigated...
2017: PloS One
https://www.readbyqxmd.com/read/28490320/astaxanthin-protects-astrocytes-against-trauma-induced-apoptosis-through-inhibition-of-nkcc1-expression-via-the-nf-%C3%AE%C2%BAb-signaling-pathway
#18
Mingkun Zhang, Zhenwen Cui, Hua Cui, Yong Wang, Chunlong Zhong
BACKGROUND: Astaxanthin (ATX) is a carotenoid pigment with pleiotropic pharmacological properties that is seen as a possible drug for treating cerebral ischemic injury and subarachnoid hemorrhage. Na(+)-K(+)-2Cl(-) co-transporter-1 (NKCC1), an intrinsic membrane protein expressed by many cell types, is activated by various insults, leading to the formation of cell swelling and brain edema. We previously established that ATX attenuated brain edema and improved neurological outcomes by modulating NKCC1 expression after traumatic brain injury in mice...
May 10, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28488010/neuroprotective-effect-of-oxysophocarpine-by-modulation-of-mapk-pathway-in-rat-hippocampal-neurons-subject-to-oxygen-glucose-deprivation-and-reperfusion
#19
Peng Zhao, Ren-Yuan Chang, Ning Liu, Jing Wang, Ru Zhou, Xue Qi, Yue Liu, Lin Ma, Yang Niu, Tao Sun, Yu-Xiang Li, Yan-Ping He, Jian-Qiang Yu
Oxysophocarpine (OSC), an alkaloid isolated from Sophora flavescens Ait, has been traditionally used as a medicinal agent based on the observed pharmacological effects. In this study, the direct effect of OSC against neuronal injuries induced by oxygen and glucose deprivation (OGD) in neonatal rat primary-cultured hippocampal neurons and its mechanisms were investigated. Cultured hippocampal neurons, which were exposed to OGD for 2 h followed by a 24 h reoxygenation, were used as an in vitro model of ischemia and reperfusion...
May 9, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28487979/trail-mutant-membrane-penetrating-peptide-alike-mur6-tr-enhances-the-antitumor-effects-of-trail-in-pancreatic-carcinoma-both-in-vitro-and-in-vivo
#20
Lei Sun, Chen Chen, Aijing Zhu, Ying Huang, Hong Zhu, Cheng Yi
To remedy the drug resistance of natural tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and enhance its antitumor effects, we prepared a type of TRAIL mutant membrane penetrating peptide alike (TMPPA)‑TRAIL mutant R6 (MuR6-TR) by mutating the N‑terminal of the soluble TRAIL gene sequence. The expressed MuR6‑TR protein was purified to treat pancreatic carcinoma cell lines BxPC‑3 and PANC‑1. The inhibitory effects on the proliferation of BxPC‑3 and PANC‑1 cells was assessed with CCK‑8 assay and compared with natural TRAIL...
June 2017: International Journal of Molecular Medicine
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