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https://www.readbyqxmd.com/read/29232580/design-and-synthesis-of-novel-quinacrine-1-3-thiazinan-4-one-hybrids-for-their-anti-breast-cancer-activity
#1
V Raja Solomon, Sheetal Pundir, Hoang-Thanh Le, Hoyun Lee
In an attempt to develop effective and safe anticancer agents, we designed, synthesized and examined 23 novel quinacrine (QC) derivatives by combining the 9-aminoacridine scaffold and the [1,3]thiazinan-4-ones group. Most of these hybrids showed strong anticancer activities, among which 3-(3-(6-chloro-2-methoxyacridin-9-ylamino)propyl)-2-(thiophen-2-yl)-1,3-thiazinan-4-one (25; VR151) effectively killed many different cancer cell types, including eight breast cancer cell lines with different genetic background, two prostate cancer and two lung cancer cell lines...
December 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29231282/new-insight-into-the-synthesis-and-biological-activity-of-the-polymeric-materials-consisting-of-folic-acid-and-%C3%AE-cyclodextrin
#2
Artur Kasprzak, Ireneusz P Grudzinski, Magdalena Bamburowicz-Klimkowska, Andrzej Parzonko, Maciej Gawlak, Magdalena Poplawska
This work presents a very new look at folate targeting and is focused on synthesizing and assessing the biological activity of folic acid-targeted drug delivery materials based on β-cyclodextrin. Both folic acid and β-cyclodextrin have been covalently conjugated to branched polyethylenimine as the polymeric vector. Host-guest inclusion of folic acid into a β-cyclodextrin cavity, demonstrated by means of the spectroscopic methods (2-D NMR, IR, UV-Vis), is found to be of crucial importance for biological activity of nanotherapeutics...
December 12, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29230817/ebv-encoded-mirnas-target-atm-mediated-response-in-nasopharyngeal-carcinoma
#3
Raymond W-M Lung, Pok-Man Hau, Ken H-O Yu, Kevin Y Yip, Joanna H-M Tong, W-P Chak, Anthony W-H Chan, Ka-Hei Lam, Angela K-F Lo, Edith K-Y Tin, Shuk-Ling Chau, Jesse C-S Pang, Johnny S-H Kwan, Pierre Busson, Lawrence S Young, Lee-Fah Yap, Sai-Wah Tsao, Ka-Fai To, Kwok-Wai Lo
Nasopharyngeal carcinoma (NPC) is a highly invasive epithelial malignancy that is prevalent in southern China and Southeast Asia. It is consistently associated with latent Epstein-Barr virus (EBV) infection. In NPC, miR-BARTs, the EBV-encoded miRNAs derived from BamH1-A rightward transcripts are abundantly expressed and contribute to cancer development by targeting various cellular and viral genes. In this study, we establish a comprehensive transcriptional profile of EBV-encoded miRNAs in a panel of NPC patient-derived xenografts and an EBV-positive NPC cell line by small RNA sequencing...
December 12, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29230653/environmental-exposure-to-cadmium-a-risk-for-health-of-the-general-population-in-industrialized-countries-and-preventive-strategies
#4
Magdalena Mezynska, Malgorzata M Brzóska
Cadmium (Cd) is a heavy metal belonging to the group of the main chemical pollutants of the natural and occupational environment in economically developed countries. The forecasts indicate that contamination of the environment with this toxic metal, and thus the exposure of the general population, will increase. Food (particularly plant products) is the main source of the general population exposure to this element. Moreover, an important, and often the main, source of intoxication with Cd is habitual tobacco smoking...
December 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29230219/functional-impairment-of-mononuclear-phagocyte-system-by-the-human-respiratory-syncytial-virus
#5
REVIEW
Karen Bohmwald, Janyra A Espinoza, Raúl A Pulgar, Evelyn L Jara, Alexis M Kalergis
The mononuclear phagocyte system (MPS) comprises of monocytes, macrophages (MΦ), and dendritic cells (DCs). MPS is part of the first line of immune defense against a wide range of pathogens, including viruses, such as the human respiratory syncytial virus (hRSV). The hRSV is an enveloped virus that belongs to the Pneumoviridae family, Orthopneumovirus genus. This virus is the main etiological agent causing severe acute lower respiratory tract infection, especially in infants, children and the elderly. Human RSV can cause bronchiolitis and pneumonia and it has also been implicated in the development of recurrent wheezing and asthma...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29230123/molecular-targets-in-non-small-cell-lung-cancer
#6
REVIEW
Ryan Griffin, Robert A Ramirez
Background: Lung cancer is the second most common cancer in the United States among men and women, and it is the most common cause of cancer-related death. Non-small cell lung cancer (NSCLC) represents approximately 85% of all lung cancer cases. Historically, patients with metastatic NSCLC received similar cytotoxic chemotherapy regimens. Genotyping studies have revealed genetic/molecular abnormalities in lung cancer. These driver mutations render a cancer dependent on that specific mutation's biochemical pathway for its growth and survival...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29230122/the-role-of-checkpoint-inhibition-in-non-small-cell-lung-cancer
#7
REVIEW
Jonathan Lu, Robert A Ramirez
Background: The development of immune checkpoint inhibitors has revolutionized the treatment of cancer. Their use in non-small cell lung cancer (NSCLC) remains in its infancy, but rapid progress has been made in treating metastatic NSCLC. Methods: This article outlines the role of immune checkpoint inhibitors in the treatment of malignancy and reviews clinical trials of novel immunotherapies in the setting of metastatic NSCLC. Results: Traditional chemotherapy with a platinum-based doublet has long been the backbone in the treatment of metastatic NSCLC...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29230061/boosting-with-recombinant-mva-expressing-m-tuberculosis-%C3%AE-crystallin-antigen-augments-the-protection-imparted-by-bcg-against-tuberculosis-in-guinea-pigs
#8
Prachi Nangpal, Ritika Kar Bahal, Anil K Tyagi
Tuberculosis (TB) is one of the major causes of mortality all over the globe. BCG, the only vaccine available against this disease has been successful in preventing the severe forms of childhood TB. However, the unsatisfactory performance of BCG in controlling the adult pulmonary tuberculosis has made the development of an effective vaccine against M. tuberculosis a prime objective of the TB research. In this study, a genetically stable, marker-free recombinant MVA expressing α-crystallin of M. tuberculosis (rMVA...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229989/necroptotic-signaling-is-primed-in-mycobacterium-tuberculosis-infected-macrophages-but-its-pathophysiological-consequence-in-disease-is-restricted
#9
Michael D Stutz, Samar Ojaimi, Cody Allison, Simon Preston, Philip Arandjelovic, Joanne M Hildebrand, Jarrod J Sandow, Andrew I Webb, John Silke, Warren S Alexander, Marc Pellegrini
Mixed lineage kinase domain-like (MLKL)-dependent necroptosis is thought to be implicated in the death of mycobacteria-infected macrophages, reportedly allowing escape and dissemination of the microorganism. Given the consequent interest in developing inhibitors of necroptosis to treat Mycobacterium tuberculosis (Mtb) infection, we used human pharmacologic and murine genetic models to definitively establish the pathophysiological role of necroptosis in Mtb infection. We observed that Mtb infection of macrophages remodeled the intracellular signaling landscape by upregulating MLKL, TNFR1, and ZBP1, whilst downregulating cIAP1, thereby establishing a strong pro-necroptotic milieu...
December 11, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29229669/kras-the-critical-driver-and-therapeutic-target-for-pancreatic-cancer
#10
Andrew M Waters, Channing J Der
RAS genes (HRAS, KRAS, and NRAS) comprise the most frequently mutated oncogene family in human cancer. With the highest RAS mutation frequencies seen with the top three causes of cancer deaths in the United States (lung, colorectal, and pancreatic cancer), the development of anti-RAS therapies is a major priority for cancer research. Despite more than three decades of intense effort, no effective RAS inhibitors have yet to reach the cancer patient. With bitter lessons learned from past failures and with new ideas and strategies, there is renewed hope that undruggable RAS may finally be conquered...
December 11, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/29229095/primary-immune-deficiency-diseases-as-unrecognized-causes-of-chronic-respiratory-disease
#11
REVIEW
Melvin Berger, Bob Geng, D William Cameron, Ladonna M Murphy, Edward S Schulman
BACKGROUND: More than half of all primary immune deficiency diseases (PIDD) affect antibody production and are well known as causes of recurrent sinusitis and lung infections. Chronic and recurrent infections of the upper and/or lower airways can contribute to inflammatory and obstructive processes in the lower airways which are initially reversible and considered "asthma", but can eventually cause irreversible remodeling and chronic obstructive pulmonary disease (COPD). Conversely, several lines of evidence suggest that many patients who present with a diagnosis of asthma have an increased incidence of infection, suggesting underlying host-defense defects...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29229093/bronchopulmonary-dysplasia-a-review-of-pathogenesis-and-pathophysiology
#12
REVIEW
Renjithkumar Kalikkot Thekkeveedu, Milenka Cuevas Guaman, Binoy Shivanna
Bronchopulmonary dysplasia (BPD) is a chronic lung disease of primarily premature infants that results from an imbalance between lung injury and repair in the developing lung. BPD is the most common respiratory morbidity in preterm infants, which affects nearly 10, 000 neonates each year in the United States. Over the last two decades, the incidence of BPD has largely been unchanged; however, the pathophysiology has changed with the substantial improvement in the respiratory management of extremely low birth weight (ELBW) infants...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29229020/normalization-of-elevated-tumor-marker-ca27-29-after-bilateral-lung-transplantation-in-a-patient-with-breast-cancer-and-idiopathic-pulmonary-fibrosis
#13
Mehmet Sitki Copur, Julie Marie Wurdeman, Debra Nelson, Ryan Ramaekers, Dron Gauchan, David Crockett
Solid tumors involving glandular organs express mucin glycoprotein which is eventually shed into the circulation. As aresult these proteins can easily be measured in the serum and be used as potential tumor markers. The most commonly used tumor markers for breast cancer are CA 27-29 and CA 15-3, which both measure the glycoprotein product of the mucin-1 (MUC1) gene. CA 27-29 has been approved by the US Food and Drug Administration for monitoring disease activity in breast cancer patients. Most oncology clinical practice guidelines do not recommend the use of tumor markers for routine surveillance of early stage disease but recognize their utility in the metastatic setting...
December 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/29228973/cohort-profile-the-saskatchewan-rural-health-study-adult-component
#14
Punam Pahwa, Masud Rana, William Pickett, Chandima P Karunanayake, Khalid Amin, Donna Rennie, Josh Lawson, Shelley Kirychuk, Bonnie Janzen, Niels Koehncke, James Dosman
OBJECTIVES: Less is known about the respiratory health of general farming and non-framing populations. A longitudinal Saskatchewan Rural Health Study (SRHS) was conducted to explore the association between individual and contextual factors with respiratory health outcomes in these populations. Hence, the objectives are to: (i) describe the updated methodology of longitudinal SRHS-an extension of baseline survey methodology published earlier; (ii) compare baseline characteristics and the prevalences of respiratory health outcomes between drops-outs and completers; and (iii) summarize key findings based on baseline survey data...
December 11, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29228930/gene-expression-analysis-in-asthma-using-a-targeted-multiplex-array
#15
Christopher D Pascoe, Ma'en Obeidat, Bryna A Arsenault, Yunlong Nie, Stephanie Warner, Dorota Stefanowicz, Samuel J Wadsworth, Jeremy A Hirota, S Jasemine Yang, Delbert R Dorscheid, Chris Carlsten, Tillie L Hackett, Chun Y Seow, Peter D Paré
BACKGROUND: Gene expression changes in the structural cells of the airways are thought to play a role in the development of asthma and airway hyperresponsiveness. This includes changes to smooth muscle contractile machinery and epithelial barrier integrity genes. We used a targeted gene expression arrays to identify changes in the expression and co-expression of genes important in asthma pathology. METHODS: RNA was isolated from the airways of donor lungs from 12 patients with asthma (8 fatal) and 12 non-asthmatics controls and analyzed using a multiplexed, hypothesis-directed platform to detect differences in gene expression...
December 11, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29228707/pd-l1-immunohistochemical-assays-for-assessment-of-therapeutic-strategies-involving-immune-checkpoint-inhibitors-in-non-small-cell-lung-cancer-a-comparative-study
#16
Hyojin Kim, Hyun Jung Kwon, Soo Young Park, Eunhyang Park, Jin-Haeng Chung
Although immune checkpoints inhibitors have exhibited promising activity in clinical trials in non-small cell lung cancer (NSCLC) patients, the current programmed cell death-ligand 1 (PD-L1) assays are inconsistent in terms of the staining analysis and scoring system used. To verify the interchangeability of the available PD-L1 assays, we performed immunohistochemistry using three antibody clones used in clinical trials (22C3, SP263, and SP142) and the E1L3N clone as a laboratory developed test for 97 resected NSCLC specimens...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228664/chromatin-remodeling-protein-morc2-promotes-breast-cancer-invasion-and-metastasis-through-a-prd-domain-mediated-interaction-with-ctnnd1
#17
Xiao-Hong Liao, Ye Zhang, Wen-Jie Dong, Zhi-Min Shao, Da-Qiang Li
MORC family CW-type zinc finger 2 (MORC2) is a newly identified chromatin remodeling protein with emerging roles in the regulation of DNA damage response and gene transcription, but its mechanistic role in breast cancer development and progression remains unexplored. Here, we show that MORC2 promoted breast cancer invasion and metastasis and these effects depended on a proline-rich domain (PRD) within its carboxy-terminal region spanning residues 601-734. Induced expression of wild-type MORC2 did not significantly affect cell proliferation and cell-cycle progression, but promoted breast cancer cell migration and invasion in vitro and metastatic lung colonization in vivo...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228638/thoracic-radiation-induced-pleural-effusion-and-risk-factors-in-patients-with-lung-cancer
#18
Jing Zhao, Regina M Day, Jian-Yue Jin, Leslie Quint, Hadyn Williams, Catherine Ferguson, Li Yan, Maurice King, Ahmad Albsheer, Martha Matuszak, Feng-Ming Spring Kong
The risk factors and potential practice implications of radiation-induced pleural effusion (RIPE) are undefined. This study examined lung cancer patients treated with thoracic radiation therapy (TRT) having follow-up computed tomography (CT) or 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT. Increased volumes of pleural effusion after TRT without evidence of tumor progression was considered RIPE. Parameters of lung dose-volume histogram including percent volumes irradiated with 5-55 Gy (V5-V55) and mean lung dose (MLD) were analyzed by receiver operating characteristic analysis...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228607/clinical-significance-and-biological-function-of-fucosyltransferase-2-in-lung-adenocarcinoma
#19
Wenyuan Zhou, Huijun Ma, Guoqing Deng, Lili Tang, Jianxin Lu, Xiaoming Chen
Fucosylation, which is catalyzed by fucosyltransferases (FUTs), is one of the most important glycosylation events involved in cancer. Studies have shown that fucosyltransferase 8 (FUT8) is overexpressed in NSCLC and promotes lung cancer progression. However, there are no reports about the pathological role of fucosyltransferase 2 (FUT2) in lung cancer. To identify FUT2 associated with lung cancer, the expression and clinical significance of FUT2 in lung cancer was investigated by Real-Time PCR, Immunohistochemistry and Western Blot...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228576/comparison-of-tumor-biology-of-two-distinct-cell-sub-populations-in-lung-cancer-stem-cells
#20
Jianyu Wang, Zhiwei Sun, Yongli Liu, Liangsheng Kong, Shixia Zhou, Junlin Tang, Hongmei Rosie Xing
Characterization of the stem-like properties of cancer stem cells (CSCs) remain indirect and qualitative, especially the ability of CSCs to undergo asymmetric cell division for self renewal and differentiation, a unique property of cells of stem origin. It is partly due to the lack of stable cellular models of CSCs. In this study, we developed a new approach for CSC isolation and purification to derive a CSC-enriched cell line (LLC-SE). By conducting five consecutive rounds of single cell cloning using the LLC-SE cell line, we obtained two distinct sub-population of cells within the Lewis lung cancer CSCs that employed largely symmetric division for self-renewal (LLC-SD) or underwent asymmetric division for differentiation (LLC-ASD)...
November 14, 2017: Oncotarget
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