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https://www.readbyqxmd.com/read/28321397/the-identification-of-three-cancer-stem-cell-subpopulations-within-moderately-differentiated-lip-squamous-cell-carcinoma
#1
Rachna Ram, Helen D Brasch, Jonathan C Dunne, Paul F Davis, Swee T Tan, Tinte Itinteang
AIM: To identify and characterize cancer stem cells (CSCs) in moderately differentiated lip squamous cell carcinoma (MDLSCC). METHOD: MDLSCC samples underwent 3,3-diaminobenzidine (DAB) immunohistochemical (IHC) staining for squamous cell carcinoma marker EMA, CSC marker CD44 and embryonic stem cell markers NANOG, octamer-binding transcription factor 4 (OCT4), spalt-like transcription factor 4 (SALL4), sex-determining region Y-box 2 (SOX2), and phosphorylated signal transducer and activator of transcription 3 (pSTAT3)...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28318799/transcriptome-analysis-of-il-10-stimulated-m2c-macrophages-by-next-generation-sequencing
#2
Emily B Lurier, Donald Dalton, Will Dampier, Pichai Raman, Sina Nassiri, Nicole M Ferraro, Ramakrishan Rajagopalan, Mahdi Sarmady, Kara L Spiller
Alternatively activated "M2" macrophages are believed to function during late stages of wound healing, behaving in an anti-inflammatory manner to mediate the resolution of the pro-inflammatory response caused by "M1" macrophages. However, the differences between two main subtypes of M2 macrophages, namely interleukin-4 (IL-4)-stimulated "M2a" macrophages and IL-10-stimulated "M2c" macrophages, are not well understood. M2a macrophages are characterized by their ability to inhibit inflammation and contribute to the stabilization of angiogenesis...
February 20, 2017: Immunobiology
https://www.readbyqxmd.com/read/28301325/circulating-mirnas-as-biomarkers-of-gait-speed-responses-to-aerobic-exercise-training-in-obese-older-adults
#3
Tan Zhang, Tina E Brinkley, Keqin Liu, Xin Feng, Anthony P Marsh, Stephen Kritchevsky, Xiaobo Zhou, Barbara J Nicklas
Gait speed is a useful predictor of adverse outcomes, including incident mobility disability and mortality in older adults. While aerobic exercise training (AEX) is generally an effective therapy to improve gait speed, individual responses are highly variable. Circulating microRNAs (miRNAs) may contribute to inter-individual changes in gait speed with AEX. We examined whether plasma miRNAs are associated with gait speed changes (dGaitSp) in 33 obese older adults (age: 69.3±3.6 years, BMI: 34.0±3.1 kg/m(2), 85% white, 73% women) who performed treadmill walking, 4 days/week for 5 months...
March 15, 2017: Aging
https://www.readbyqxmd.com/read/28299881/the-regulation-of-tumor-suppressive-microrna-mir-126-in%C3%A2-chronic-lymphocytic-leukemia
#4
Daphne Guinn, Amy Lehman, Catherine Fabian, Lianbo Yu, Kami Maddocks, Leslie A Andritsos, Jeffrey A Jones, Joseph M Flynn, Samantha M Jaglowski, Jennifer A Woyach, John C Byrd, Amy J Johnson
The introduction of miR profiling of chronic lymphocytic leukemia (CLL) patients with different cytogenetic profiles and responses to therapy has allowed incorporation of important miR-mRNA interactions into the understanding of disease biology. In this study, we performed miR expression analysis using NanoString nCounter to discover differentially regulated miRs after therapy with the Bruton tyrosine kinase inhibitor ibrutinib. Of the differentially regulated miRs in the discovery set, miR-29c and miR-126 were confirmed using real-time PCR to be upregulated in CLL patient cells with ibrutinib therapy...
March 15, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28291392/new-molecular-assay-for-the-proliferation-signature-in-mantle-cell-lymphoma-applicable-to-formalin-fixed-paraffin-embedded-biopsies
#5
David W Scott, Pau Abrisqueta, George W Wright, Graham W Slack, Anja Mottok, Diego Villa, Pedro Jares, Hilka Rauert-Wunderlich, Cristina Royo, Guillem Clot, Magda Pinyol, Merrill Boyle, Fong Chun Chan, Rita M Braziel, Wing C Chan, Dennis D Weisenburger, James R Cook, Timothy C Greiner, Kai Fu, German Ott, Jan Delabie, Erlend B Smeland, Harald Holte, Elaine S Jaffe, Christian Steidl, Joseph M Connors, Randy D Gascoyne, Andreas Rosenwald, Louis M Staudt, Elias Campo, Lisa M Rimsza
Purpose Mantle cell lymphoma is an aggressive B-cell neoplasm that displays heterogeneous outcomes after treatment. In 2003, the Lymphoma/Leukemia Molecular Profiling Project described a powerful biomarker-the proliferation signature-using gene expression in fresh frozen material. Herein, we describe the training and validation of a new assay that measures the proliferation signature in RNA derived from routinely available formalin-fixed paraffin-embedded (FFPE) biopsies. Methods Forty-seven FFPE biopsies were used to train an assay on the NanoString platform, using microarray gene expression data of matched fresh frozen biopsies as a gold standard...
March 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28283529/targeting-the-rhoa-rock-pathway-to-reverse-t-cell-dysfunction-in-sle
#6
Cristina Rozo, Yurii Chinenov, Reena Khianey Maharaj, Sanjay Gupta, Laura Leuenberger, Kyriakos A Kirou, Vivian P Bykerk, Susan M Goodman, Jane E Salmon, Alessandra B Pernis
OBJECTIVES: Deregulated production of interleukin (IL)-17 and IL-21 contributes to the pathogenesis of autoimmune disorders such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). Production of IL-17 and IL-21 can be regulated by ROCK2, one of the two Rho kinases. Increased ROCK activation was previously observed in an SLE cohort. Here, we evaluated ROCK activity in a new SLE cohort, and an RA cohort, and assessed the ability of distinct inhibitors of the ROCK pathway to suppress production of IL-17 and IL-21 by SLE T cells or human Th17 cells...
April 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28278198/blood-pressure-and-expression-of-micrornas-in-whole-blood
#7
Zhou Zhang, Brian Thomas Joyce, Jacob K Kresovich, Yinan Zheng, Jia Zhong, Ruchi Patel, Wei Zhang, Lei Liu, Chang Dou, John P McCracken, Anaité Díaz, Valeria Motta, Marco Sanchez-Guerra, Shurui Bian, Pier Alberto Bertazzi, Joel Schwartz, Andrea A Baccarelli, Sheng Wang, Lifang Hou
BACKGROUND: Blood pressure (BP) is a complex, multifactorial clinical outcome driven by genetic susceptibility, behavioral choices, and environmental factors. Many molecular mechanisms have been proposed for the pathophysiology of high BP even as its prevalence continues to grow worldwide, increasing morbidity and marking it as a major public health concern. To address this, we evaluated miRNA profiling in blood leukocytes as potential biomarkers of BP and BP-related risk factors. METHODS: The Beijing Truck Driver Air Pollution Study included 60 truck drivers and 60 office workers examined in 2008...
2017: PloS One
https://www.readbyqxmd.com/read/28266015/understanding-of-decreased-sialylation-of-fc-fusion-protein-in-hyperosmotic-recombinant-chinese-hamster-ovary-cell-culture-n-glycosylation-gene-expression-and-n-linked-glycan-antennary-profile
#8
Jong Hyun Lee, Yeong Ran Jeong, Yeon-Gu Kim, Gyun Min Lee
To understand the effects of hyperosmolality on protein glycosylation, recombinant Chinese hamster ovary (rCHO) cells producing the Fc-fusion protein were cultivated in hyperosmolar medium resulting from adding NaCl (415 mOsm/kg). The hyperosmotic culture showed increased specific Fc-fusion protein productivity (qFc ) but a decreased proportion of acidic isoforms and sialic acid content of the Fc-fusion protein. The intracellular and extracellular sialidase activities in the hyperosmotic cultures were similar to those in the control culture (314 mOsm/kg), indicating that reduced sialylation of Fc-fusion protein at hyperosmolality was not due to elevated sialidase activity...
March 7, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28259107/expression-of-programmed-cell-death-ligand-in-cutaneous-squamous-cell-carcinoma-and-treatment-of-locally-advanced-disease-with-pembrolizumab
#9
Mary L Stevenson, Claire Q F Wang, Melody Abikhair, Nazanin Roudiani, Diane Felsen, James G Krueger, Anna C Pavlick, John A Carucci
Importance: Limited therapies are available in patients with inoperable locally advanced cutaneous squamous cell carcinoma (cSCC). Objective: To determine the efficacy of programmed cell death 1 receptor (PD-1) inhibitors in locally advanced cSCC. Design, Setting, and Participants: A single patient with locally advanced cSCC who declined surgery and radiotherapy underwent treatment with pembrolizumab, an anti-PD-1 antibody, at an academic dermatologic surgery section and cancer center...
March 4, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28246590/the-utilization-of-formalin-fixed-paraffin-embedded-specimens-in-high-throughput-genomic-studies
#10
REVIEW
Pan Zhang, Brian D Lehmann, Yu Shyr, Yan Guo
High throughput genomic assays empower us to study the entire human genome in short time with reasonable cost. Formalin fixed-paraffin-embedded (FFPE) tissue processing remains the most economical approach for longitudinal tissue specimen storage. Therefore, the ability to apply high throughput genomic applications to FFPE specimens can expand clinical assays and discovery. Many studies have measured the accuracy and repeatability of data generated from FFPE specimens using high throughput genomic assays. Together, these studies demonstrate feasibility and provide crucial guidance for future studies using FFPE specimens...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28245862/presence-of-an-interferon-signature-in-individuals-who-are-anti-nuclear-antibody-positive-lacking-a-systemic-autoimmune-rheumatic-disease-diagnosis
#11
Joan Wither, Sindhu R Johnson, Tony Liu, Babak Noamani, Dennisse Bonilla, Larissa Lisnevskaia, Earl Silverman, Arthur Bookman, Carolina Landolt-Marticorena
BACKGROUND: Elevated levels of type I interferons (IFNs) are a characteristic feature of the systemic autoimmune rheumatic diseases (SARDs) and are thought to play an important pathogenic role. However, it is unknown whether these elevations are seen in anti-nuclear antibody-positive (ANA(+)) individuals who lack sufficient criteria for a SARD diagnosis. We examined IFN-induced gene expression in asymptomatic ANA(+) individuals and patients with undifferentiated connective tissue disease (UCTD) to address this question...
February 28, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28236275/gene-expression-profiles-predictive-of-cold-induced-sweetening-in-potato
#12
Jonathan Neilson, M Lagüe, S Thomson, F Aurousseau, A M Murphy, B Bizimungu, V Deveaux, Y Bègue, J M E Jacobs, H H Tai
Cold storage (2-4 °C) used in potato production to suppress diseases and sprouting during storage can result in cold-induced sweetening (CIS), where reducing sugars accumulate in tuber tissue leading to undesirable browning, production of bitter flavors, and increased levels of acrylamide with frying. Potato exhibits genetic and environmental variation in resistance to CIS. The current study profiles gene expression in post-harvest tubers before cold storage using transcriptome sequencing and identifies genes whose expression is predictive for CIS...
February 24, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28212619/brain-and-liver-pathology-amyloid-deposition-and-interferon-responses-among-older-hiv-positive-patients-in-the-late-haart-era
#13
Isaac H Solomon, Umberto De Girolami, Sukrutha Chettimada, Vikas Misra, Elyse J Singer, Dana Gabuzda
BACKGROUND: HIV+ patients on highly active antiretroviral therapy (HAART) with suppressed viral loads have a low incidence of HIV-associated dementia, but increased prevalence of milder forms of HIV-associated neurocognitive disorders (HAND). These milder forms of HAND are often associated with minimal histological abnormalities, and their pathophysiology is unclear. Comorbidities, altered amyloid metabolism, accelerated brain aging, and activated interferon responses are suspected to play a role in HAND pathogenesis in HAART-treated persons...
February 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28186973/upregulation-of-fam84b-during-prostate-cancer-progression
#14
Nicholas Wong, Yan Gu, Anil Kapoor, Xiaozeng Lin, Diane Ojo, Fengxiang Wei, Judy Yan, Jason de Melo, Pierre Major, Geoffrey Wood, Tariq Aziz, Jean-Claude Cutz, Michael Bonert, Arthur J Patterson, Damu Tang
Although the FAM84B gene lies within chromosome 8q24, a locus frequently altered in prostate cancer (PC), its alteration during prostate tumorigenesis has not been well studied. We report here FAM84B upregulation in DU145 cell-derived prostate cancer stem-like cells (PCSLCs) and DU145 cell-produced lung metastases compared to subcutaneous xenograft tumors. FAM84B protein was detected in bone metastases and primary PCs. Nanostring examination of 7 pairs of tumor adjacent normal and PC tissues revealed elevations in FAM84B mRNA levels in all carcinomas...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28181564/multiplexed-transcriptome-analysis-to-detect-alk-ros1-and-ret-rearrangements-in-lung-cancer
#15
Toni-Maree Rogers, Gisela Mir Arnau, Georgina L Ryland, Stephen Huang, Maruja E Lira, Yvette Emmanuel, Omar D Perez, Darryl Irwin, Andrew P Fellowes, Stephen Q Wong, Stephen B Fox
ALK, ROS1 and RET gene fusions are important predictive biomarkers for tyrosine kinase inhibitors in lung cancer. Currently, the gold standard method for gene fusion detection is Fluorescence In Situ Hybridization (FISH) and while highly sensitive and specific, it is also labour intensive, subjective in analysis, and unable to screen a large numbers of gene fusions. Recent developments in high-throughput transcriptome-based methods may provide a suitable alternative to FISH as they are compatible with multiplexing and diagnostic workflows...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28174235/an-integrated-approach-identifies-mediators-of-local-recurrence-in-head-neck-squamous-carcinoma
#16
Francesca Citron, Joshua Armenia, Giovanni Franchin, Jerry Polesel, Renato Talamini, Sara D'Andrea, Sandro Sulfaro, Carlo M Croce, William Klement, Dave Otasek, Chiara Pastrello, Tomas Tokar, Igor Jurisica, Deborah French, Riccardo Bomben, Emanuela Vaccher, Diego Serraino, Barbara Belletti, Andrea Vecchione, Luigi Barzan, Gustavo Baldassarre
PURPOSE: Head and Neck Squamous Cell Carcinomas (HNSCC) cause more than 300,000 deaths worldwide each year. Locoregional and distant recurrences represent worse prognostic events and accepted surrogate markers of patients' survival. No valid biomarker and salvage therapy exist to identify and treat patients at high-risk of recurrence. We aimed to verify if selected microRNAs (miRs) could be used as biomarkers of recurrence in HNSCC. EXPERIMENTAL DESIGN: A Nanostring array was used to identify miRs associated with locoregional recurrence in 44 HNSCC patients...
February 7, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28158279/analysis-of-trpv-channel-activation-by-stimulation-of-fc%C3%AE%C2%B5ri-and-mrgpr-receptors-in-mouse-peritoneal-mast-cells
#17
A Solís-López, U Kriebs, A Marx, S Mannebach, W B Liedtke, M J Caterina, M Freichel, V V Tsvilovskyy
The activation of mast cells (MC) is part of the innate and adaptive immune responses and depends on Ca2+ entry across the plasma membrane, leading to the release of preformed inflammatory mediators by degranulation or by de novo synthesis. The calcium conducting channels of the TRPV family, known by their thermo and osmotic sensitivity, have been proposed to be involved in the MC activation in murine, rat, and human mast cell models. So far, immortalized mast cell lines and nonspecific TRPV blockers have been employed to characterize the role of TRPV channels in MC...
2017: PloS One
https://www.readbyqxmd.com/read/28157838/purification-and-characterization-of-micrornas-within-middle-ear-fluid-exosomes-implication-in-otitis-media-pathophysiology
#18
Stéphanie Val, Stephanie Jeong, Marian Poley, Anna Krueger, Gustavo Nino, Kristy Brown, Diego Preciado
BACKGROUND: Otitis Media (OM) is characterized by acute infection progressing to chronic middle ear effusion (MEE). Extracellular secretion of microRNAs (miRNAs) in exosomes is a newly discovered mechanism for cells exerting distant cell genetic regulation. Whether MEE contains exosomes with specific miRNAs is unknown. This study aimed to purify and characterize the exosomal and miRNA content of MEE. METHOD: MEEs were subjected to Exoquick exosomal purification and EXOCET exosomal quantification...
February 3, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28145097/multiregion-ultra-deep-sequencing-reveals-early-intermixing-and-variable-levels-of-intratumoral-heterogeneity-in-colorectal-cancer
#19
Yuka Suzuki, Sarah Boonhsi Ng, Clarinda Chua, Wei Qiang Leow, Jermain Chng, Shi Yang Liu, Kalpana Ramnarayanan, Anna Gan, Dan Liang Ho, Rachel Ten, Yan Su, Alexandar Lezhava, Jiunn Herng Lai, Dennis Koh, Kiat Hon Lim, Patrick Tan, Steven G Rozen, Iain Beehuat Tan
Intratumor heterogeneity (ITH) contributes to cancer progression and chemoresistance. We sought to comprehensively describe ITH of somatic mutations, copy number, and transcriptomic alterations involving clinically and biologically relevant gene pathways in colorectal cancer (CRC). We performed multiregion, high-depth (384× on average) sequencing of 799 cancer-associated genes in 24 spatially separated primary tumor and nonmalignant tissues from four treatment-naïve CRC patients. We then used ultra-deep sequencing (17 075× on average) to accurately verify the presence or absence of identified somatic mutations in each sector...
February 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28143986/expression-of-biomarkers-cxcr4-il11-ra-tff1-mlf1p-in-advanced-breast-cancer-patients-with-bone-metastatic-a-diagnostic-study
#20
Cosphiadi Irawan, Djumhana Atmakusumah, Nurjati Chaeranie Siregar, The Bin Tean, Lim Weng Kong, Ong Choon Kiat, Abdulmuthalib Abdulmuthalib, Alida Harahap, Muchtaruddin Mansyur
AIM: to analyze expression of biomarkers CXCR4, IL11-RA, TFF1 and MLF1P, and clinicopathology in advanced breast cancer patients with bone metastatic. METHODS: this is a cross-sectional study. Analysis was done against a total of 92 breast cancer patients, including 46 bone metastatic patients and 46 non-bone metastatic patients. Immunohistochemistry and microarray analysis was performed in 81 formalin fixed paraffin embedded (FFPE) samples from 81 patients were used...
October 2016: Acta Medica Indonesiana
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