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https://www.readbyqxmd.com/read/28454399/inhibition-of-lung-cancer-growth-by-hangamdan-b-is-mediated-by-macrophage-activation-to-m1-subtype
#1
Hye-Rin Park, Eun-Ji Lee, Seong-Cheol Moon, Tae-Wook Chung, Keuk-Jun Kim, Hwa-Seung Yoo, Chong-Kwan Cho, Ki-Tae Ha
Re-education of tumor-associated macrophages (TAMs) toward antitumor effectors may be a promising therapeutic strategy for the successful treatment of cancer. HangAmDan-B (HAD-B), a herbal formula, has been used for stimulating immune function and activation of vital energy to cancer patients in traditional Korean Medicine. Previous studies have reported the anti-angiogenic and anti-metastatic effects of HAD-B; however, evidence on the immunomodulatory action of HAD-B was not demonstrated. In the present study, immunocompetent mice were used to demonstrate the suppression of the in vivo growth of allograft Lewis lung carcinoma (LLC) cells, by HAD-B...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454125/polarization-dependent-intermodal-four-wave-mixing-in-a-birefringent-multimode-photonic-crystal-fiber
#2
Jinhui Yuan, Zhe Kang, Feng Li, Guiyao Zhou, Xinzhu Sang, Qiang Wu, Binbin Yan, Xian Zhou, Kangping Zhong, Liang Wang, Kuiru Wang, Chongxiu Yu, Chao Lu, Hwa Yaw Tam, P K A Wai
In this Letter, polarization-dependent intermodal four-wave mixing (FWM) is demonstrated experimentally in a birefringent multimode photonic crystal fiber (BM-PCF) designed and fabricated in-house. Femtosecond pump pulses at wavelengths ∼800  nm polarized along one of the principal axes of the BM-PCF are coupled into a normal dispersion region away from the zero-dispersion wavelengths of the fundamental guided mode of the BM-PCF. Anti-Stokes and Stokes waves are generated in the 2nd guided mode at visible and near-infrared wavelengths, respectively...
May 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28454065/quantitative-measurements-of-intercellular-adhesion-between-a-macrophage-and-cancer-cells-using-a-cup-attached-afm-chip
#3
Hyonchol Kim, Ayana Yamagishi, Miku Imaizumi, Yui Onomura, Akira Nagasaki, Yohei Miyagi, Tomoko Okada, Chikashi Nakamura
Intercellular adhesion between a macrophage and cancer cells was quantitatively measured using atomic force microscopy (AFM). Cup-shaped metal hemispheres were fabricated using polystyrene particles as a template, and a cup was attached to the apex of the AFM cantilever. The cup-attached AFM chip (cup-chip) approached a murine macrophage cell (J774.2), the cell was captured on the inner concave of the cup, and picked up by withdrawing the cup-chip from the substrate. The cell-attached chip was advanced towards a murine breast cancer cell (FP10SC2), and intercellular adhesion between the two cells was quantitatively measured...
April 23, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28453960/implication-of-a-novel-gla-containing-protein-gas6-in-the-pathogenesis-of-insulin-resistance-impaired-glucose-homeostasis-and-inflammation-a-review
#4
REVIEW
Anjum Dihingia, Jatin Kalita, Prasenjit Manna
Growth arrest specific 6 (Gas6), a vitamin K-dependent protein plays a significant role in the regulation of cellular homeostasis via binding with TAM-receptor tyrosine kinases. Several studies reported the role of Gas6 in cancer, glomerular injury, obesity, and inflammation, however, very little is known about its role in insulin resistance (IR) and impaired glucose metabolism. Majority of the studies reported an inverse correlation of Gas6 protein levels or gene polymorphism with plasma glucose, HbA1c, IR, and inflammatory cytokines among type 2 diabetes (T2D) and obese subjects...
April 13, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28453746/activation-of-cecr1-in-m2-like-tams-promotes-paracrine-stimulation-mediated-glial-tumor-progression
#5
Changbin Zhu, Dana Mustafa, Ping-Pin Zheng, Marcel van der Weiden, Andrea Sacchetti, Maarten Brandt, Ihsan Chrifi, Dennie Tempel, Pieter J M Leenen, Dirk Jan Duncker, Caroline Cheng, Johan M Kros
Background.: The majority of glioma-associated microglia/macrophages have been identified as M2-type macrophages with immune suppressive and tumor supportive action. Recently, the extracellular adenosine deaminase protein Cat Eye Syndrome Critical Region Protein 1 (CECR1) was shown to regulate macrophage maturation. In this study, we investigate the role of CECR1 in the regulation of the glioma-associated macrophage response. Methods.: Expression of CECR1 was assessed in human glioma samples...
May 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28453405/a-meta-analysis-of-antimicrobial-susceptibility-profiles-for-pneumococcal-pneumonia-in-sub-saharan-africa
#6
Pui-Ying Iroh Tam, Ayebo E Sadoh, Stephen K Obaro
BACKGROUND: Pneumonia causes an enormous burden of childhood disease globally, particularly in low- and middle-income countries. Pneumococcus is the most common bacterial aetiology of pneumonia; however, antimicrobials are limited and may not adequately address the local epidemiology of the region. AIM: To undertake a review and meta-analysis of pneumonia studies in sub-Saharan Africa to evaluate antimicrobial susceptibility patterns in childhood pneumonia. METHODS: Articles published in PubMed and Google between 2006 and 2016 which evaluated antimicrobial susceptibility profiles of pneumococcal pneumonia in children in sub-Saharan Africa were identified...
April 28, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28449496/the-mechanisms-of-radioresistance-in-esophageal-squamous-cell-carcinoma-and-current-strategies-in-radiosensitivity
#7
REVIEW
Guang-Zong Chen, Hong-Cheng Zhu, Wang-Shu Dai, Xiao-Ning Zeng, Jin-Hua Luo, Xin-Chen Sun
Esophageal cancer is the eighth most common cancer and the sixth leading cause of cancer-related death worldwide. Surgery is the primary form of treatment, but the survival is poor, especially for patients with locally advanced esophageal cancer. Radiotherapy has been a critical treatment option that may be combined with chemotherapy in patients with unresectable esophageal cancer. However, resistance to chemoradiotherapy might result in treatment failures and cancer relapse. This review will mainly focus on the possible cellular mechanisms and tumor-associated microenvironmental (TAM) factors that result in radioresistance in patients with esophageal cancer...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28448645/estimating-survival-after-salvage-surgery-for-recurrent-oral-cavity-cancer
#8
Samantha Tam, Rakhna Araslanova, Tsu-Hui Hubert Low, Andrew Warner, John Yoo, Kevin Fung, S Danielle MacNeil, David A Palma, Anthony C Nichols
Importance: Locoregional recurrence of oral cavity squamous cell carcinoma (OCSCC) continues to be a life-threatening and difficult clinical situation. Salvage surgery can result in significant morbidities, and survival following recurrence is poor. Objective: To outline prognostic factors influencing overall survival (OS) following salvage surgery for OCSCC to guide management of treatment for patients with locoregionally recurrent disease. Design, Setting, and Participants: The medical records of 293 patients presenting to the London Health Sciences Center with locoregionally recurrent OCSCC between October 5, 1999, and May 2, 2011, were retrospectively reviewed...
April 27, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28448490/the-value-of-daily-platelet-counts-for-predicting-dengue-shock-syndrome-results-from-a-prospective-observational-study-of-2301-vietnamese-children-with-dengue
#9
Phung Khanh Lam, Tran Van Ngoc, Truong Thi Thu Thuy, Nguyen Thi Hong Van, Tran Thi Nhu Thuy, Dong Thi Hoai Tam, Nguyen Minh Dung, Nguyen Thi Hanh Tien, Nguyen Tan Thanh Kieu, Cameron Simmons, Bridget Wills, Marcel Wolbers
BACKGROUND: Dengue is the most important mosquito-borne viral infection to affect humans. Although it usually manifests as a self-limited febrile illness, complications may occur as the fever subsides. A systemic vascular leak syndrome that sometimes progresses to life-threatening hypovolaemic shock is the most serious complication seen in children, typically accompanied by haemoconcentration and thrombocytopenia. Robust evidence on risk factors, especially features present early in the illness course, for progression to dengue shock syndrome (DSS) is lacking...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28444321/evidence-of-altered-brain-responses-to-nicotine-in-an-animal-model-of-adhd
#10
Guillaume L Poirier, Wei Huang, Kelly Tam, Joseph R DiFranza, Jean A King
Introduction: Individuals with attention deficit/hyperactivity disorder (ADHD) are susceptible to earlier and more severe nicotine addiction. To shed light on the relationship between nicotine and ADHD, we examined nicotine's effects on functional brain networks in an animal model of ADHD. Methods: Awake magnetic resonance imaging was used to compare functional connectivity in adolescent (postnatal day 44±2) males of the Spontaneously Hypertensive Rat (SHR) strain and two control strains, Wistar Kyoto and Sprague Dawley (n = 16 each)...
April 22, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28442738/dysregulation-of-blimp1-transcriptional-repressor-unleashes-p130cas-erbb2-breast-cancer-invasion
#11
Marianna Sciortino, Maria Del Pilar Camacho-Leal, Francesca Orso, Elena Grassi, Andrea Costamagna, Paolo Provero, Wayne Tam, Emilia Turco, Paola Defilippi, Daniela Taverna, Sara Cabodi
ErbB2 overexpression is detected in approximately 20% of breast cancers and is correlated with poor survival. It was previously shown that the adaptor protein p130Cas/BCAR1 is a crucial mediator of ErbB2 transformation and that its overexpression confers invasive properties to ErbB2-positive human mammary epithelial cells. We herein prove, for the first time, that the transcriptional repressor Blimp1 is a novel mediator of p130Cas/ErbB2-mediated invasiveness. Indeed, high Blimp1 expression levels are detected in invasive p130Cas/ErbB2 cells and correlate with metastatic status in human breast cancer patients...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28442201/temporal-variations-in-physiological-responses-of-kandelia-obovata-seedlings-exposed-to-multiple-heavy-metals
#12
Shanshan Cheng, Nora Fung Yee Tam, Ruili Li, Xiaoxue Shen, Zhiyuan Niu, Minwei Chai, Guo Yu Qiu
A study was conducted to quantify temporal variations in physiological responses of Kandelia obovata under multiple heavy metal stress. The results showed that plant growth was not significantly affected by multiple heavy metal stress during the 120-days experiment. At the start, levels of net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) showed effects of "low-promotion, high-inhibition", but Pn and Gs reduced with increasing heavy metal stress at the end. Temporary lipid oxidation was shown by high levels of malondialdehyde (MDA) under high heavy metal stress at the start but was unaffected at the end of the experiment...
April 22, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28441391/apigenin-inhibits-tnf%C3%AE-il-1%C3%AE-induced-ccl2-release-through-ikbk-epsilon-signaling-in-mda-mb-231-human-breast-cancer-cells
#13
David Bauer, Natalie Redmon, Elizabeth Mazzio, Karam F Soliman
Mortality associated with breast cancer is attributable to aggressive metastasis, to which TNFα plays a central orchestrating role. TNFα acts on breast tumor TNF receptors evoking the release of chemotactic proteins (e.g. MCP-1/CCL2). These proteins direct inward infiltration/migration of tumor-associated macrophages (TAMs), tumor-associated neutrophils (TANs), myeloid-derived suppressor cells (MDSCs), T-regulatory cells (Tregs), T helper IL-17-producing cells (Th17s), metastasis-associated macrophages (MAMs) and cancer-associated fibroblasts (CAFs)...
2017: PloS One
https://www.readbyqxmd.com/read/28440040/hypofractionated-short-course-radiotherapy-in-elderly-patients-with-glioblastoma-multiforme-an-analysis-of-the-national-cancer-database
#14
Kimberley S Mak, Ankit Agarwal, Muhammad M Qureshi, Minh Tam Truong
For elderly patients with glioblastoma multiforme (GBM), randomized trials have shown similar survival with hypofractionated short-course radiotherapy (SCRT) compared to conventionally fractionated long-course radiotherapy (LCRT). We evaluated the adoption of SCRT along with associated factors and survival in a national patient registry. Using the National Cancer Data Base (NCDB), we identified patients aged ≥70 years with GBM, diagnosed between 1998 and 2011, who received SCRT (34-42 Gy in 2.5-3.4 Gy fractions), or LCRT (58-63 Gy in 1...
April 24, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28439809/site-selection-a-case-study-in-the-identification-of-optimal-cysteine-engineered-antibody-drug-conjugates
#15
L Nathan Tumey, Fengping Li, Brian Rago, Xiaogang Han, Frank Loganzo, Sylvia Musto, Edmund I Graziani, Sujiet Puthenveetil, Jeffrey Casavant, Kimberly Marquette, Tracey Clark, Jack Bikker, Eric M Bennett, Frank Barletta, Nicole Piche-Nicholas, Amy Tam, Christopher J O'Donnell, Hans Peter Gerber, Lioudmila Tchistiakova
As the antibody drug conjugate (ADC) community continues to shift towards site-specific conjugation technology, there is a growing need to understand how the site of conjugation impacts the biophysical and biological properties of an ADC. In order to address this need, we prepared a carefully selected series of engineered cysteine ADCs and proceeded to systematically evaluate their potency, stability, and PK exposure. The site of conjugation did not have a significant influence on the thermal stability and in vitro cytotoxicity of the ADCs...
April 24, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28439566/inflammatory-markers-and-risk-for-cognitive-decline-in-chronic-kidney-disease-the-cric-study
#16
Manjula Kurella Tamura, Karman Tam, Eric Vittinghoff, Dominic Raj, Stephen M Sozio, Sylvia E Rosas, Gail Makos, Claudia Lora, Jiang He, Alan S Go, Chi-Yuan Hsu, Kristine Yaffe
INTRODUCTION: Chronic kidney disease (CKD) is associated with an increased risk of cognitive decline, but the mechanisms remain poorly defined. We sought to determine the relation between serum inflammatory markers and risk of cognitive decline among adults with CKD. METHODS: We studied 757 adults aged ≥55 years with CKD participating in the Chronic Renal Insufficiency Cohort Cognitive study. We measured interleukin (IL)-1β, IL-1 receptor antagonist, IL-6, tumor necrosis factor (TNF)-α, high-sensitivity C-reactive protein (hs-CRP), and fibrinogen in baseline plasma samples...
March 2017: KI Reports
https://www.readbyqxmd.com/read/28438140/a-universal-genome-sequencing-method-for-rotavirus-a-from-human-fecal-samples-which-identifies-segment-reassortment-and-multi-genotype-mixed-infection
#17
Tran Thi Ngoc Dung, Pham Thanh Duy, October M Sessions, Uma K Sangumathi, Voong Vinh Phat, Pham Thi Thanh Tam, Nguyen Thi Nguyen To, Tran My Phuc, Tran Thi Hong Chau, Nguyen Ngoc Minh Chau, Ngoc Nguyen Minh, Guy E Thwaites, Maia A Rabaa, Stephen Baker
BACKGROUND: Genomic characterization of rotavirus (RoV) has not been adopted at large-scale due to the complexity of obtaining sequences for all 11 segments, particularly when feces are used as starting material. METHODS: To overcome these limitations, we developed a novel RoV capture and genome sequencing method combining commercial enzyme immunoassay plates and a set of routinely used reagents. RESULTS: Our approach had a 100% success rate, producing >90% genome coverage for diverse RoV present in fecal samples (Ct < 30)...
April 24, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28437995/single-measurement-digital-optical-frequency-comb-based-phase-detection-brillouin-optical-time-domain-analyzer
#18
Chao Jin, Liang Wang, Yuli Chen, Nan Guo, Wenghong Chung, Hoyin Au, Zhaohui Li, Hwa-Yaw Tam, Chao Lu
A single-measurement sweep-free distributed Brillouin optical time domain analyzer (BOTDA) sensor based on phase detection is proposed and experimentally demonstrated employing digital optical frequency comb (DOFC) probe signal. Brillouin Phase Spectrum (BPS) of DOFC probe induced by Brillouin interaction is measured using coherent detection in a single acquisition, without any frequency scanning and data averaging. Single-measurement BOTDA sensor based on BPS in 10km long fiber is demonstrated with a response time of 100 μs, which is limited only by the fiber length...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28434946/hyperglycemia-induced-renal-p2x7-receptor-activation-enhances-diabetes-related-injury
#19
Robert I Menzies, John W R Booth, John J Mullins, Matthew A Bailey, Frederick W K Tam, Jill T Norman, Robert J Unwin
Diabetes is a leading cause of renal disease. Glomerular mesangial expansion and fibrosis are hallmarks of diabetic nephropathy and this is thought to be promoted by infiltration of circulating macrophages. Monocyte chemoattractant protein-1 (MCP-1) has been shown to attract macrophages in kidney diseases. P2X7 receptors (P2X7R) are highly expressed on macrophages and are essential components of pro-inflammatory signaling in multiple tissues. Here we show that in diabetic patients, renal P2X7R expression is associated with severe mesangial expansion, impaired glomerular filtration (≤40ml/min/1...
April 20, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28434637/clinical-heterogeneity-in-children-with-gonadal-dysgenesis-associated-with-non-mosaic-46-xy-karyotype
#20
Y S Wong, Y H Tam, K K Y Pang, K F To, S S C Chan, K W Chan, K H Lee
INTRODUCTION: Gonadal dysgenesis is unique in disorders of sex development (DSD), in that it can be associated with 46,XX, 46,XY or mosaic 45,X/46,XY karyotypes. Gonadal dysgenesis can be partial or complete. Gonadal dysgenesis associated with the Y-chromosome has increased risk of gonadal germ cell neoplasms. Most of the literature focus on 45,X/46,XY gonadal dysgenesis, while there are scanty data on the condition when the karyotype is non-mosaic 46,XY. OBJECTIVE: To investigate the diversity of clinical pictures of children presenting with 46,XY DSD due to gonadal dysgenesis...
April 10, 2017: Journal of Pediatric Urology
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