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https://www.readbyqxmd.com/read/28735111/screening-disrupted-molecular-functions-and-pathways-associated-with-clear-cell-renal-cell-carcinoma-using-gibbs-sampling
#1
Ning Nan, Qi Chen, Yu Wang, Xu Zhai, Chuan-Ce Yang, Bin Cao, Tie Chong
OBJECTIVE: To explore the disturbed molecular functions and pathways in clear cell renal cell carcinoma (ccRCC) using Gibbs sampling. METHODS: Gene expression data of ccRCC samples and adjacent non-tumor renal tissues were recruited from public available database. Then, molecular functions of expression changed genes in ccRCC were classed to Gene Ontology (GO) project, and these molecular functions were converted into Markov chains. Markov chain Monte Carlo (MCMC) algorithm was implemented to perform posterior inference and identify probability distributions of molecular functions in Gibbs sampling...
July 13, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28734999/the-reversion-of-anti-cancer-drug-antagonism-of-tamoxifen-and-docetaxel-by-the-hyaluronic-acid-decorated-polymeric-nanoparticles
#2
Zhihong Zhu, Yuenan Li, Xinggang Yang, Hao Pan, Weisan Pan
Docetaxel (DTX) and tamoxifen (TMX) are first-line drugs used to treat breast cancer. However when used in combination, they produce antagonism because of their differential metabolic pathways. In order to prevent this antagonism, an amphiphilic copolymer, cholesterol modified hyaruronic acid (HA-CHOL), was synthesized for investigating the co-delivery of TMX and DTX. In vitro drug release experiment of the Co-encapsulated (encapsulated DTX+TMX) nanoparticles (Co-NPs) revealed that NPs with unique release mechanism can markedly reduce the release of these drugs in the circulatory system...
July 19, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28734635/programmed-cell-death-and-inflammation-winter-is-coming
#3
REVIEW
Joseph P Kolb, Thomas H Oguin, Andrew Oberst, Jennifer Martinez
The life of an organism requires the assistance of an unlikely process: programmed cell death. Both development and the maintenance of homeostasis result in the production of superfluous cells that must eventually be disposed of. Furthermore, programmed cell death can also represent a defense mechanism; for example, by depriving pathogens of a replication niche. The responsibility of handling these dead cells falls on phagocytes of the immune system, which surveil their surroundings for dying or dead cells and efficiently clear them in a quiescent manner...
July 19, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28734029/successful-treatment-of-metastatic-clear-cell-carcinoma-with-nivolumab-in-a-patient-receiving-dialysis-treatment
#4
Tadashi Tabei, Ichiro Natsume, Kazuki Kobayashi
The efficacy and safety of nivolumab for patients receiving dialysis treatment has not been established yet. Herein, we describe a patient on dialysis successfully treated with nivolumab as seventh-line therapy for metastatic renal cell carcinoma. Before initiating nivolumab, he had respiratory discomfort induced by a lesion occluding the left intermediate bronchus that originated from the metastatic lymph node behind the tracheal bifurcation. Four weeks after nivolumab was initiated, his symptom remarkably improved, and the occlusion disappeared according to the bronchoscopy examination...
July 21, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28733985/lalf32-51-e7-a-hpv-16-therapeutic-vaccine-candidate-forms-protein-body-like-structures-when-expressed-in-nicotiana-benthamiana-leaves
#5
Romana J R Yanez, Renate Lamprecht, Milaid Granadillo, Isis Torrens, Elsa Arcalís, Eva Stöger, Edward P Rybicki, Inga I Hitzeroth
High-risk Human papillomaviruses (HPVs) cause cervical cancer, and while there are good prophylactic vaccines on the market, these are ineffective against established infections, creating a clear need for therapeutic vaccines. The HPV E7 protein is one of the essential oncoproteins for the onset and maintenance of malignancy, and is therefore an ideal therapeutic vaccine target. We fused the HPV-16 E7 protein to the Limulus polyphemus anti-lipopolysaccharide factor (LALF32-51 ), a small hydrophobic peptide that can penetrate cell membranes and that has immunomodulatory properties...
July 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28733977/molecular-classification-of-tumor-cells-in-a-patient-with-intravascular-large-b-cell-lymphoma
#6
W M Bauer, M C Aichelburg, J Griss, C Skrabs, I Simonitsch-Klupp, A I Schiefer, H Kittler, U Jäger, M Zeyda, R Knobler, G Stingl
BACKGROUND: Intravascular large B-cell lymphoma (IVLBCL) is a rare type of extranodal large B-cell lymphoma. It is characterized by the proliferation of tumour cells exclusively intraluminally in small blood vessels of different organs. The clinical manifestation depends on the type of organ affected, additionally, a haemophagocytic syndrome can be observed in some patients. OBJECTIVE: Due to the rarity of this lymphoma and in spite of detailed immunohistochemical investigations the exact nosology of this cancer is only incompletely understood...
July 22, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28733845/genome-wide-identification-in-silico-characterization-and-expression-analysis-of-zip-like-genes-from-trichomonas-vaginalis-in-response-to-zinc-and-iron
#7
K G Fernández-Martín, M E Alvarez-Sánchez, V E Arana-Argáez, L C Alvarez-Sánchez, J C Lara-Riegos, J C Torres-Romero
Trace elements such as Zinc and Iron are essential components of metalloproteins and serve as cofactors or structural elements for enzymes involved in several important biological processes in almost all organisms. Because either excess or insufficient levels of Zn and Fe can be harmful for the cells, the homeostatic levels of these trace minerals must be tightly regulated. The Zinc regulated transporter, Iron regulated transporter-like Proteins (ZIP) comprise a diverse family, with several paralogues in diverse organisms and are considered essential for the Zn and Fe uptake and homeostasis...
July 21, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28733594/cd56-is-a-pathogen-recognition-receptor-on-human-natural-killer-cells
#8
Sabrina Ziegler, Esther Weiss, Anna-Lena Schmitt, Jan Schlegel, Anne Burgert, Ulrich Terpitz, Markus Sauer, Lorenzo Moretta, Simona Sivori, Ines Leonhardt, Oliver Kurzai, Hermann Einsele, Juergen Loeffler
Aspergillus (A.) fumigatus is an opportunistic fungal mold inducing invasive aspergillosis (IA) in immunocompromised patients. Although antifungal activity of human natural killer (NK) cells was shown in previous studies, the underlying cellular mechanisms and pathogen recognition receptors (PRRs) are still unknown. Using flow cytometry we were able to show that the fluorescence positivity of the surface receptor CD56 significantly decreased upon fungal contact. To visualize the interaction site of NK cells and A...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733544/identification-of-lefty-as-a-molecular-marker-for-ovarian-clear-cell-carcinoma
#9
Masashi Akiya, Masaaki Yamazaki, Toshihide Matsumoto, Yusuke Kawashima, Yasuko Oguri, Sabine Kajita, Daiki Kijima, Risako Chiba, Ako Yokoi, Hiroyuki Takahashi, Yoshio Kodera, Makoto Saegusa
To identify proteins involved in ovarian clear cell carcinoma (OCCCa), shotgun proteomics analysis was applied using formalin-fixed and paraffin-embedded samples of ovarian carcinoma. Analysis of 1521 proteins revealed that 52 were differentially expressed between four OCCCa and 12 non-OCCCa samples. Of the highly expressed proteins in OCCCa, we focused on left-right determination factor (LEFTY), a novel member of the transforming growth factor-β superfamily. In 143 cases of ovarian epithelial carcinoma including 99 OCCCas and 44 non-OCCCas, LEFTY expression at both mRNA and protein levels was significantly higher in OCCCas compared with non-OCCCas, with the mRNA expression of LEFTY1 being predominant compared to that of LEFTY2...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733540/am1241-alleviates-mptp-induced-parkinson-s-disease-and-promotes-the-regeneration-of-da-neurons-in-pd-mice
#10
Jun Shi, Qiong Cai, Jingxing Zhang, Xiaolie He, Yigang Liu, Rongrong Zhu, Lingjing Jin
The main pathological feature of Parkinson's disease (PD) is the loss of dopaminergic neurons in the substantia nigra. In this study, we investigated the role of cannabinoid receptor 2 (CB2R) agonist AM1241 on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurotoxicity in a mouse model of PD. Upon treatment with AM1241, the decreased CB2R level in the PD mouse brain was reversed and the behavior score markedly elevated, accompanied with a dose-dependent increase of dopamine and serotonin. In addition, western blot assay and immunostaining results suggested that AM1241 significantly activated PI3K/Akt/MEK phosphorylation and increased the expression of Parkin and PINK1, both in the substantia nigra and hippocampus...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733426/frameshift-indels-generate-highly-immunogenic-tumor-neoantigens
#11
(no author information available yet)
Renal clear cell carcinomas have the highest proportion of indels, which are linked to immune activation.
July 21, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28732404/influence-of-the-stabilizers-on-the-toxicity-of-metallic-nanomaterials-in-aquatic-organisms-and-human-cell-lines
#12
Tatiana Andreani, Verónica Nogueira, Vera V Pinto, Maria José Ferreira, Maria Graça Rasteiro, Amélia M Silva, Ruth Pereira, Carlos M Pereira
In this study, following a systematic approach, we used aquatic species (bacteria Vibrio fischeri and microalgae Raphidocelis subcapitata) and different human cell lines (Caco-2, HepG2, SV-80 and HaCaT) representing different tissues and exposure pathways, to investigate how two organic stabilizers (PVA and DMSO) used for NMs dispersion influence their physicochemical properties, the persistence of metals in suspension and the toxicity/ecotoxicity of two metallic NMs (nano-Ag and nano-Cu). Although the stabilizers are expected to contribute to improve the dispersion and stability of NMs, the results obtained clearly showed that no similar changes in toxicity and morphological properties of the nano-Ag can be expected after its stabilization with PVA...
July 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28731496/prognostic-factors-for-survival-in-metastatic-renal-cell-carcinoma-patients-with-brain-metastases-receiving-targeted-therapy
#13
Ibrahim Yildiz, Ahmet Bilici, Nuri Karadurmuş, Leyla Ozer, Deniz Tural, Mehmet A Kaplan, Tülay Akman, Ibrahim V Bayoglu, Mükremin Uysal, Yaşar Yildiz, Özgür Tanriverdi, Ozan Yazici, Zeki Sürmeli, Nazim Serdar Turhal, Sevil Bavbek, Fatih Selçukbiricik, Doğan Koca, Mert Basaran
BACKGROUND: The primary objective of our study was to examine the clinical outcomes and prognosis of patients with metastatic renal cell carcinoma (mRCC) with brain metastases (BMs) receiving targeted therapy. PATIENTS AND METHODS: Fifty-eight patients from 16 oncology centers for whom complete clinical data were available were retrospectively reviewed. RESULTS: The median age was 57 years (range 30-80). Most patients underwent a nephrectomy (n = 41; 70...
July 14, 2017: Tumori
https://www.readbyqxmd.com/read/28731186/let-7c-5p-inhibits-cell-proliferation-and-induces-cell-apoptosis-by-targeting-ercc6-in-breast-cancer
#14
Xiaonan Fu, Xuan Mao, Yuxiang Wang, Xianfeng Ding, Yongfeng Li
In this study, we found that let-7c-5p expression was clearly downregulated in breast cancer tissues compared with that of corresponding adjacent tissues. Furthermore, overexpression of let-7c-5p in MCF-7 breast cancer cells could significantly inhibit cell proliferation and induce cell apoptosis. The target genes of let-7c-5p were predicted by the way of bioinformatics, and validated by dual luciferase reporter assay and western blotting demonstrating that excision repair cross complementing 6 (ERCC6) gene was a direct target...
July 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731143/suppression-of-hepatic-dysfunction-in-tenascin%C3%A2-x%C3%A2-deficient-mice-fed-a-high%C3%A2-fat-diet
#15
Shinsaku Yamaguchi, Kohei Kawakami, Kazumi Satoh, Naoki Fukunaga, Kazuhito Akama, Ken-Ichi Matsumoto
Extracellular matrix glycoprotein tenascin‑X (TNX) is the largest member of the tenascin family. In the present study, the contribution of TNX to liver dysfunction was investigated by administration of high‑fat and high‑cholesterol diet with high levels of phosphorus and calcium (HFCD) to wild‑type (WT) and TNX‑knockout (KO) mice. After 16 weeks of HFCD administration, the ratio of liver weight to body weight was approximately 22% higher in the HFCD‑fed WT mice compared with the HFCD‑fed TNX‑KO mice, indicating hepatomegaly in HFCD‑fed WT mice...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731045/renal-cell-tumors-with-clear-cell-histology-and-intact-vhl-and-chromosome-3p-a-histological-review-of-tumors-from-the-cancer-genome-atlas-database
#16
Laura Favazza, Dhananjay A Chitale, Ravi Barod, Craig G Rogers, Shanker Kalyana-Sundaram, Nallasivam Palanisamy, Nilesh S Gupta, Sean R Williamson
Clear cell renal cell carcinoma is by far the most common form of kidney cancer; however, a number of histologically similar tumors are now recognized and considered distinct entities. The Cancer Genome Atlas published data set was queried (http://cbioportal.org) for clear cell renal cell carcinoma tumors lacking VHL gene mutation and chromosome 3p loss, for which whole-slide images were reviewed. Of the 418 tumors in the published Cancer Genome Atlas clear cell renal cell carcinoma database, 387 had VHL mutation, copy number loss for chromosome 3p, or both (93%)...
July 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28730786/clinical-significance-of-microvessel-density-and-proliferation-in-prostate-cancer-core-biopsy
#17
Stevan D Matic, Milena S Rakocevic, Tomislav T Jocic, Milos S Todorovic, Ljiljana M Vuckovic, Snezana A Jancic, Milan G Knezevic
PURPOSE: To investigate the microvessel density (MVD) and proliferation in prostate cancer (PC) core biopsies. METHODS: Core biopsy samples of PC tissue from 45 patients were routinely processed and embedded in paraffin. The samples of PC formed the investigated group (n=25), while samples of benign prostatic hyperplasia (BPH) served as controls (n=20). From paraffin blocks, 3-5 μm-thick sections were made and routine hematoxylin-eosin method and immunohistochemical ABC method with Ki67 and CD34 antibodies were applied...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730785/pdcd1-strengthens-the-sensitivity-of-ovarian-cancer-to-cisplatin-chemotherapy-by-promoting-apoptosis
#18
Qian Li, Jie-Fan Gao, Bing-Li Qi
PURPOSE: The primary purpose of this study was to make clear the role of PDCD1 in the occurrence and progression of ovarian cancer, and explain its mechanism. METHODS: RT-PCR, westem blot, MTT and immunohistochemistry were used to detect the expression levels of PDCD1 mRNA and protein in human ovarian cancer cell lines (SKOV3, 3AO, CAOV3 and OVCAR3), human normal ovary, serous cystadenoma, and serous cystadenocarcinoma tissue. SKOV3, SKOV3-MOCK, and SKOV3-PDCD1 cells were subcutaneously injected into the armpit of nude mice to observe the effect of PDCD1 expression on tumorigenic ability...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730733/the-potential-impact-of-radix-paeoniae-alba-in-embryonic-development-of-mice
#19
Wei Xu, Ling Xu, Bin Deng, Jing Leng, Nong Tang, Li Chun Zhao, Hong Hai Zhou, Zhong Zhen Zhao, Zhi Jun Yang, Ting Ting Xiao, Xiao Ying Tian, Alan H M Ho, Nickie W K Chan, Yeuk Lung Chow, Chi Yi Chow, Min Xu
Although Radix Paeoniae Alba (RPA) has been ranked as one of the top 6 herbs used frequently to prevent and treat miscarriages clinically, there is no clear evidence regarding its safety in embryonic development. This study aims to evaluate the potential impacts of RPA on embryonic stem cells (ESCs) and pregnant mice. Cytotoxicity assays of the extract were performed in ESCs and 3T3 cells. Pregnant ICR mice were orally treated with RPA extracts at dosages of 0 (G1 group as negative controls), 2, 8 and 32 g/kg/day (G2, G3 and G4 groups) respectively from the gestation day (Gd) 6-15...
July 21, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28730564/a-new-approach-to-assess-occupational-exposure-to-airborne-fungal-contamination-and-mycotoxins-of-forklift-drivers-in-waste-sorting-facilities
#20
Carla Viegas, Tiago Faria, Ana Cebola de Oliveira, Liliana Aranha Caetano, Elisabete Carolino, Anita Quintal-Gomes, Magdalena Twarużek, Robert Kosicki, Ewelina Soszczyńska, Susana Viegas
The waste management industry is an important employer, and exposure of waste-handling workers to microorganisms is considered an occupational health problem. Besides fungal contamination, it is important to consider the co-occurrence of mycotoxins in this setting. Forklifts with closed cabinet and air conditioner are commonly used in waste industry to transport waste and other products within the facilities, possibly increasing the risk of exposure under certain conditions. The aim of this study was to assess the fungal contamination and mycotoxin levels in filters from the air conditioning system of forklift cabinets, as an indicator to assess occupational exposure of the drivers working in a waste sorting facility...
July 20, 2017: Mycotoxin Research
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