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https://www.readbyqxmd.com/read/29677215/tracking-the-fate-of-adoptively-transferred-myeloid-derived-suppressor-cells-in-the-primary-breast-tumor-microenvironment
#1
Jaclyn Sceneay, Christoph M Griessinger, Sabrina H L Hoffmann, Shu Wen Wen, Christina S F Wong, Sophie Krumeich, Manfred Kneilling, Bernd J Pichler, Andreas Möller
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid progenitor cells that are expanded in cancer and act as potent suppressors of the anti-tumor immune response. MDSCs consist of two major subsets, namely monocytic (M-) MDSCs and granulocytic (G-) MDSCs that differ with respect to their phenotype, morphology and mechanisms of suppression. Here, we cultured bone marrow cells with IL-6 and GM-CSF in vitro to generate a population of bone marrow MDSCs (BM-MDSCs) similar to G-MDSCs from tumor-bearing mice in regards to phenotype, morphology and suppressive-function...
2018: PloS One
https://www.readbyqxmd.com/read/29677182/foxo-restricts-growth-and-differentiation-of-cells-with-elevated-torc1-activity-under-nutrient-restriction
#2
Katarzyna Nowak, Avantika Gupta, Hugo Stocker
TORC1, a central regulator of cell survival, growth, and metabolism, is activated in a variety of cancers. Loss of the tumor suppressors PTEN and Tsc1/2 results in hyperactivation of TORC1. Tumors caused by the loss of PTEN, but not Tsc1/2, are often malignant and have been shown to be insensitive to nutrient restriction (NR). In Drosophila, loss of PTEN or Tsc1 results in hypertrophic overgrowth of epithelial tissues under normal nutritional conditions, and an enhanced TORC1-dependent hyperplastic overgrowth of PTEN mutant tissue under NR...
April 20, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29676997/mining-tcga-database-for-genes-of-prognostic-value-in-glioblastoma-microenvironment
#3
Di Jia, Shenglan Li, Dali Li, Haipeng Xue, Dan Yang, Ying Liu
Glioblastoma (GBM) is one of the most deadly brain tumors. The convenient access to The Cancer Genome Atlas (TCGA) database allows for large-scale global gene expression profiling and database mining for potential correlation between genes and overall survival of a variety of malignancies including GBM. Previous reports have shown that tumor microenvironment cells and the extent of infiltrating immune and stromal cells in tumors contribute significantly to prognosis. Immune scores and stromal scores calculated based on the ESTIMATE algorithm could facilitate the quantification of the immune and stromal components in a tumor...
April 16, 2018: Aging
https://www.readbyqxmd.com/read/29676642/immunomethylomics-a-novel-cancer-risk-prediction-tool
#4
Karl T Kelsey, John K Wiencke
There is emerging evidence that the immune biology associated with lung and other solid tumors, as well as patient immune genetic traits, contributes to individual survival. At this time, dramatic advances in immunologic approaches to the study and management of human cancers are taking place, including lung and head and neck squamous cell carcinoma. However, major obstacles for therapies are the profound immune alterations in blood and in the tumor microenvironment that arise in tandem with the cancer. Although there is a significant current effort underway across the cancer research community to probe the tumor environment to uncover the dynamics of the immune response, little similar work is being done to understand the dynamics of immune alterations in peripheral blood, despite evidence showing the prognostic relevance of the neutrophil/lymphocyte ratio for these cancers...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676505/differential-reactivity-of-metal-binding-domains-of-copper-atpases-towards-cisplatin-and-colocalization-of-copper-and-platinum
#5
Tiantian Fang, Yao Tian, Siming Yuan, Yaping Sheng, Arnesano Fabio, Giovanni Natile, Yangzhong Liu
P-type ATPases, including MNK and WLN proteins, are responsible for active Cu efflux. These ATPases are also associated with resistance to cisplatin. In this work, we produced different metal-binding domains (MBDs) of ATPase (9 out of 12 domains), and compared their reactivity towards cisplatin. The reaction rates of the MBDs can be largely different; the reaction of MNK6 is about 6 times faster than that of WLN2. Copper coordination favors the platination of the MBDs to different extents. The rate of platination was generally grater for holo-MBDs than for apo-MBDS (particularly in the case of WLN4 and WLN2), however it was negligibly affected in the case of MNK6...
April 20, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29676470/role-of-mirnas-in-lung-cancer
#6
REVIEW
Arif Uddin, Supriyo Chakraborty
Lung cancer (LC) is the leading cause of cancer-related deaths all over the world, among both men and women, with an incidence of over 200,000 new cases per year coupled with a very high mortality rate. LC comprises of two major clinicopathological categories: small-cell (SCLC) and nonsmall-cell lung carcinoma (NSCLC). The microRNAs (miRNAs) are small noncoding RNAs, usually 18-25 nucleotides long, which repress protein translation through binding to complementary target mRNAs. The miRNAs regulate many biological processes including cell cycle regulation, cellular growth, proliferation, differentiation, apoptosis, metabolism, neuronal patterning, and aging...
April 20, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29676354/diagnostic-and-prognostic-impact-of-mucin-1-6-expression-in-non-small-cell-lung-cancer
#7
William Sterlacci, Michael Fiegl, Lothar Veits, Alexandar Tzankov
Background: The prognostic significance and clinico-pathological characterization of mucin (MUC) expression in non-small cell lung cancer (NSCLC) is controversial and little studied. Aims: This study aims at elucidating this issue on the largest and most detailed cohort so far. Settings and Design: We examined the expression of MUC 1, 2, 4, 5AC and 6 on 371, well documented, surgically resected NSCLC cases. Materials and Methods: Immunohistochemical results were correlated with several of our previously studied, relevant parameters on this cohort including a follow-up period of up to 20 years...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29676343/histopathological-report-of-colorectal-carcinoma-resections-a-5-year-audit-in-lagos
#8
Kabir Bolarinwa Badmos, Olorunda Rotimi, Abdulrazzaq Oluwagbemiga Lawal, Adedapo O Osinowo, Mohammed Y Habeebu, Fatimah Biade Abdulkareem
Background: Complete and accurate pathology reporting of colorectal carcinoma (CRC) resection specimen is critical to clinical management of individual patients. The study aims to audit colorectal cancer histopathology reporting in Lagos between 2011 and 2015 before the adoption of the Society for Gastroenterology and Hepatology in Nigeria pro forma in 2016. Materials and Methods: All resected CRC cases were identified from the Histopathology record of our Department and that of a private Laboratory in Lagos over a 5-year from 2011 to 2015...
January 2018: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29675892/dna-repair-protein-xpa-is-differentially-expressed-in-colorectal-cancer-and-predicts-better-prognosis
#9
Xue Feng, Jingwei Liu, Yuehua Gong, Kaihua Gou, Huaiwei Yang, Yuan Yuan, Chengzhong Xing
As an indispensable factor in DNA damage recognition step of nucleotide excision repair, XPA interacts with a series of proteins to initiate repair process. The expression characteristics of XPA in colorectal cancer (CRC) and its influence on CRC prognosis remain elusive. Tissue specimens of CRC and nontumor adjacent tissues from 283 patients were collected. XPA protein expressions were detected by immunohistochemistry staining. Nonparametric test was used to investigate the difference of XPA expression between CRC and nontumor adjacent tissues, as well as the correlation between XPA expression and clinicopathological parameters of CRC...
April 19, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29675469/noninvasive-ovarian-cancer-biomarker-detection-via-an-optical-nanosensor-implant
#10
Ryan M Williams, Christopher Lee, Thomas V Galassi, Jackson D Harvey, Rachel Leicher, Maria Sirenko, Madeline A Dorso, Janki Shah, Narciso Olvera, Fanny Dao, Douglas A Levine, Daniel A Heller
Patients with high-grade serous ovarian carcinoma (HGSC) exhibit poor 5-year survival rates, which may be significantly improved by early-stage detection. The U.S. Food and Drug Administration-approved biomarkers for HGSC-CA-125 (cancer antigen 125) and HE4 (human epididymis protein 4)-do not generally appear at detectable levels in the serum until advanced stages of the disease. An implantable device placed proximal to disease sites, such as in or near the fallopian tube, ovary, uterine cavity, or peritoneal cavity, may constitute a feasible strategy to improve detection of HGSC...
April 2018: Science Advances
https://www.readbyqxmd.com/read/29675295/combination-of-structural-and-vascular-optical-coherence-tomography-for-differentiating-oral-lesions-of-mice-in-different-carcinogenesis-stages
#11
Ping-Hisen Chen, Chien-Hsien Wu, Yi-Fen Chen, Yi-Chen Yeh, Bo-Han Lin, Kuo-Wei Chang, Pei-Yu Lai, Ming-Chih Hou, Ching-Liang Lu, Wen-Chuan Kuo
Differentiating between early malignancy and benign lesions in oral cavities is difficult using current optical tools. As has been shown in previous studies, microvascular changes in squamous epithelium can be regarded as a key marker for diagnosis. We propose the combination of structural and vascular optical coherence tomography (OCT) imaging for the investigation of disease related changes. Progressive thickness changes of epithelium and the destruction of underlying lamina propria was observed during cancer development in a 4- nitroquinoline-1-oxide (4NQO) mouse model...
April 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29675249/ultrasensitive-and-specific-fluorescence-detection-of-a-cancer-biomarker-via-nanomolar-binding-to-a-guanidinium-modified-calixarene
#12
Zhe Zheng, Wen-Chao Geng, Jie Gao, Yu-Ying Wang, Hongwei Sun, Dong-Sheng Guo
We designed a water-soluble guanidinium-modified calix[5]arene to target lysophosphatidic acid (LPA), an ideal biomarker for early diagnosis of ovarian and other gynecologic cancers, achieving binding on the nanomolar level. An indicator displacement assay, coupled with differential sensing, enabled ultrasensitive and specific detection of LPA. Moreover, we show that using a calibration line, the LPA concentration in untreated serum can be quantified in the biologically relevant low μM range with a detection limit of 1...
February 28, 2018: Chemical Science
https://www.readbyqxmd.com/read/29675163/imaging-multiple-micrornas-in-living-cells-using-atp-self-powered-strand-displacement-cascade-amplification
#13
Xiangdan Meng, Wenhao Dai, Kai Zhang, Haifeng Dong, Xueji Zhang
Herein, we design a smart autonomous ATP self-powered strand-displacement cascade amplification (SDCA) system for highly sensitive multiple intracellular miRNA detection. Rationally engineered Y-motif DNA structures are functionalized on mesoporous silica-coated copper sulfide nanoparticles loaded with numerous ATPs (CuS@mSiO2 -Y/ATP) through pH stimulus-responsive disulfide bonds. The SDCA system is implemented by endogenous specific miRNA as a trigger and ATP as fuel released from the nanocarrier at acidic pH and photothermal stimuli-responsive CuS...
February 7, 2018: Chemical Science
https://www.readbyqxmd.com/read/29675109/wnt-signaling-in-cervical-cancer
#14
REVIEW
Min Yang, Min Wang, Xianping Li, Yixin Xie, Xiaomeng Xia, Jingjing Tian, Kan Zhang, Aiguo Tang
Cervical cancer (CC) is the second most common malignant cancer in women. CC is difficult to diagnose, has a high recurrence rate, and is resistant to systemic therapies; as a result, CC patients have a relatively poor prognosis. One potential link to CC is the Wnt signaling pathway and its downstream effectors, which regulate cell differentiation, proliferation, migration, and fate. The aberrant activation of Wnt signaling is associated with various cancers, including CC. Recent studies have shown that activating or inhibiting the intracellular signal transduction in this pathway can regulate cancer cell growth and viability...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29675103/mir-490-3p-functions-as-a-tumor-suppressor-by-inhibiting-oncogene-vdac1-expression-in-colorectal-cancer
#15
Xiangxiang Liu, Bangshun He, Tao Xu, Yuqin Pan, Xiuxiu Hu, Xiaoxiang Chen, Shukui Wang
Colorectal cancer (CRC) is one of the most common cancers worldwide, usually with poor prognosis because many CRC patients are diagnosed at an advanced stage. Therefore, novel potential diagnostic and prognostic biomarkers are urgently needed. MicroRNAs have been reported to regulate a variety of biological processes, such as cell proliferation, differentiation and apoptosis. Accumulating studies have demonstrated that miR-490-3p could regulate the development and progression of multiple cancers, but its clinical significance and molecular mechanism in CRC are still elusive...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29674746/gold-nanof%C3%A3-ve-surface-enhanced-raman-spectroscopy-visualizes-hypotaurine-as-a-robust-anti-oxidant-consumed-in-cancer-survival
#16
Megumi Shiota, Masayuki Naya, Takehiro Yamamoto, Takako Hishiki, Takeharu Tani, Hiroyuki Takahashi, Akiko Kubo, Daisuke Koike, Mai Itoh, Mitsuyo Ohmura, Yasuaki Kabe, Yuki Sugiura, Nobuyoshi Hiraoka, Takayuki Morikawa, Keiyo Takubo, Kentaro Suina, Hideaki Nagashima, Oltea Sampetrean, Osamu Nagano, Hideyuki Saya, Shogo Yamazoe, Hiroyuki Watanabe, Makoto Suematsu
Gold deposition with diagonal angle towards boehmite-based nanostructure creates random arrays of horse-bean-shaped nanostructures named gold-nanofève (GNF). GNF generates many electromagnetic hotspots as surface-enhanced Raman spectroscopy (SERS) excitation sources, and enables large-area visualization of molecular vibration fingerprints of metabolites in human cancer xenografts in livers of immunodeficient mice with sufficient sensitivity and uniformity. Differential screening of GNF-SERS signals in tumours and those in parenchyma demarcated tumour boundaries in liver tissues...
April 19, 2018: Nature Communications
https://www.readbyqxmd.com/read/29674681/publisher-correction-msk1-regulates-luminal-cell-differentiation-and-metastatic-dormancy-in-er-breast-cancer
#17
Sylwia Gawrzak, Lorenzo Rinaldi, Sara Gregorio, Enrique J Arenas, Fernando Salvador, Jelena Urosevic, Cristina Figueras-Puig, Federico Rojo, Ivan Del Barco Barrantes, Juan Miguel Cejalvo, Marta Palafox, Marc Guiu, Antonio Berenguer-Llergo, Aikaterini Symeonidi, Anna Bellmunt, Daniela Kalafatovic, Anna Arnal-Estapé, Esther Fernández, Barbara Müllauer, Rianne Groeneveld, Konstantin Slobodnyuk, Camille Stephan-Otto Attolini, Cristina Saura, Joaquín Arribas, Javier Cortes, Ana Rovira, Montse Muñoz, Ana Lluch, Violeta Serra, Joan Albanell, Aleix Prat, Angel R Nebreda, Salvador Aznar Benitah, Roger R Gomis
In the version of this Article originally published, the boxes framing the two plots in Fig. 1g were misaligned from the axes due to a technical error. This has now been corrected in all versions of the Article.
April 19, 2018: Nature Cell Biology
https://www.readbyqxmd.com/read/29674637/ube2s-stabilizes-%C3%AE-catenin-through-k11-linked-polyubiquitination-to-promote-mesendoderm-specification-and-colorectal-cancer-development
#18
Zhaoyan Li, Yan Wang, Yadan Li, Wanqi Yin, Libin Mo, Xianghao Qian, Yiran Zhang, Guifen Wang, Fan Bu, Zhiling Zhang, Xiaofang Ren, Baochang Zhu, Chang Niu, Wei Xiao, Weiwei Zhang
The canonical Wnt/β-Catenin signaling pathway is widely involved in regulating diverse biological processes. Dysregulation of the pathway results in severe consequences, such as developmental defects and malignant cancers. Here, we identified Ube2s as a novel activator of the Wnt/β-Catenin signaling pathway. It modified β-Catenin at K19 via K11-linked polyubiquitin chain. This modification resulted in an antagonistic effect against the destruction complex/β-TrCP cascade-orchestrated β-Catenin degradation...
April 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29674506/diagnostic-and-prognostic-roles-of-circulating-exosomal-micrornas-in-acquired-aplastic-anemia-and-myelodysplastic-syndromes
#19
Valentina Giudice, Lauren G Banaszak, Fernanda Gutierrez-Rodrigues, Sachiko Kajigaya, Reema Panjwani, Maria Del Pilar Fernandez Ibanez, Olga Rios, Christopher K Bleck, Erin S Stempinski, Diego Quinones Raffo, Danielle M Townsley, Neal S Young
Exosomal microRNAs modulate cancer cell metabolism and the immune response. Specific exosomal microRNAs have been reported to be reliable biomarkers of several solid and hematologic malignancies. We examined the possible diagnostic and prognostic values of exosomal microRNAs in two human bone marrow failure diseases, aplastic anemia and myelodysplastic syndromes. After screening of 372 microRNAs in a discovery set (n=42) of plasma exosome samples, we constructed a custom microRNA PCR plate, including 42 microRNAs, for validation in a larger cohort (n=99), and we identified 25 differentially expressed exosomal microRNAs uniquely or frequently present in aplastic anemia and/or myelodysplastic syndromes...
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29674477/blockade-of-myeloid-derived-suppressor-cell-expansion-with-all-trans-retinoic-acid-increases-the-efficacy-of-anti-angiogenic-therapy
#20
Raimund Bauer, Florian Udonta, Mark Wroblewski, Isabel Ben-Batalla, Ines Miranda Santos, Federico Taverna, Meike Kuhlencord, Victoria Gensch, Sarina Päsler, Stefan Vinckier, Johanna M Brandner, Klaus Pantel, Carsten Bokemeyer, Thomas Vogl, Johannes Roth, Peter Carmeliet, Sonja Loges
Intrinsic and adaptive resistance hamper the success of anti-angiogenic therapies (AAT), especially in breast cancer where this treatment modality has proven largely ineffective. Therefore, novel strategies to improve the efficacy of AAT are warranted. Solid tumors such as breast cancer are characterized by a high infiltration of myeloid-derived suppressor cells (MDSC) which are key drivers of resistance to AAT. Therefore, we hypothesized that all-trans retinoic acid (ATRA), which induces differentiation of MDSC into mature cells, could improve the therapeutic effect of AAT...
April 19, 2018: Cancer Research
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