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https://www.readbyqxmd.com/read/27911450/uveal-melanoma-relatively-rare-but-deadly-cancer
#1
REVIEW
S Kaliki, C L Shields
Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. Tumors are located either in iris (4%), ciliary body (6%), or choroid (90%). The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27910972/a-liver-microphysiological-system-of-tumor-cell-dormancy-and-inflammatory-responsiveness-is-affected-by-scaffold-properties
#2
A M Clark, S E Wheeler, C L Young, L Stockdale, J Shepard Neiman, W Zhao, D B Stolz, R Venkataramanan, D Lauffenburger, L Griffith, A Wells
Distant metastasis is the major cause of breast cancer-related mortality, commonly emerging clinically after 5 or more years of seeming 'cure' of the primary tumor, indicating a quiescent dormancy. The lack of relevant accessible model systems for metastasis that recreate this latent stage has hindered our understanding of the molecular basis and the development of therapies against these lethal outgrowths. We previously reported on the development of an all-human 3D ex vivo hepatic microphysiological system that reproduces several features of liver physiology and enables spontaneous dormancy in a subpopulation of breast cancer cells...
December 2, 2016: Lab on a Chip
https://www.readbyqxmd.com/read/27910913/loss-of-egfr-asap1-signaling-in-metastatic-and-unresectable-hepatoblastoma
#3
Sarangarajan Ranganathan, Mylarappa Ningappa, Chethan Ashokkumar, Brandon W Higgs, Jun Min, Qing Sun, Lori Schmitt, Shankar Subramaniam, Hakon Hakonarson, Rakesh Sindhi
Hepatoblastoma (HBL), the most common childhood liver cancer is cured with surgical resection after chemotherapy or with liver transplantation if local invasion and multifocality preclude resection. However, variable survival rates of 60-80% and debilitating chemotherapy sequelae argue for more informed treatment selection, which is not possible by grading the Wnt-β-catenin over activity present in most HBL tumors. A hypothesis-generating whole transcriptome analysis shows that HBL tumors removed at transplantation are enriched most for cancer signaling pathways which depend predominantly on epidermal growth factor (EGF) signaling, and to a lesser extent, on aberrant Wnt-β-catenin signaling...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910896/methylmercury-induces-the-expression-of-tnf-%C3%AE-selectively-in-the-brain-of-mice
#4
Miyuki Iwai-Shimada, Tsutomu Takahashi, Min-Seok Kim, Masatake Fujimura, Hitoyasu Ito, Takashi Toyama, Akira Naganuma, Gi-Wook Hwang
Methylmercury selectively damages the central nervous system (CNS). The tumor necrosis factor (TNF) superfamily includes representative cytokines that participate in the inflammatory response as well as cell survival, and apoptosis. In this study, we found that administration of methylmercury selectively induced TNF-α expression in the brain of mice. Although the accumulated mercury concentration in the liver and kidneys was greater than in the brain, TNF-α expression was induced to a greater extent in brain...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910858/immunosuppression-in-liver-tumors-opening-the-portal-to-effective-immunotherapy
#5
REVIEW
P Guha, J Reha, S C Katz
We have recently witnessed substantial progress with immunotherapy for selected diseases. Checkpoint inhibitors and chimeric antigen receptor T (CAR-T) cells are among the most promising agents. Whereas much of the early success with CAR-T cells has been demonstrated with hematological malignancies, important barriers remain for the application of CAR-T cell therapies for the management of metastatic solid tumors. The challenges are particularly apparent when considering primary and metastatic tumors in the liver...
December 2, 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27910780/naringenin-ameliorates-doxorubicin-toxicity-and-hypoxic-condition-in-dalton-s-lymphoma-ascites-tumor-mouse-model-evidence-from-electron-paramagnetic-resonance-imaging
#6
Venkatesan Kathiresan, Swathika Subburaman, Arun Venkatesh Krishna, Mathivanan Natarajan, Gandhidasan Rathinasamy, Kumaresan Ganesan, Murugesan Ramachandran
Doxorubicin (DOX) is a well-known cytotoxic agent used extensively as a chemotherapeutic drug to eradicate a wide variety of human cancers. Reactive oxygen species (ROS)-mediated oxidative stress during DOX treatment can induce cardiac, renal, and hepatic toxicities, which can constrain its use as a potential cytotoxic agent. The present work investigates the antioxidant potential of naringenin (NAR) against DOXinduced toxicities of a Dalton's lymphoma ascites (DLA) tumor-bearing mouse model. Mice were randomized into four groups: a negative control, positive control, DOX (2...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27909848/tissue-resident-natural-killer-cells-in-the-livers
#7
REVIEW
Hui Peng, Zhigang Tian
Nature killer (NK) cells are important lymphocytes of the innate immune system, well known for their pivotal roles in immune surveillance and defense against tumor and virus-infected cells. Current studies have revealed that NK cells are not a homogeneous population, but instead consist of distinct subsets with diverse characteristics. As an organ with predominant innate immunity, the liver is enriched with NK cells, among which two distinct NK cell subsets have recently been identified: conventional NK (cNK) cells and tissue-resident NK (trNK) cells...
November 30, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27909824/usefulness-of-ctc-and-dtc-bm-detection-for-adjuvant-therapy-effects-and-prognosis-prediction-in-early-breast-carcinoma-results-of-8-11-years-of-follow-up-evaluation
#8
Hiroshi Takeyama, T Shimada, S Kinoshita, K Uchida
BACKGROUND: Circulating tumor cells (CTCs) reportedly have been detected in the peripheral blood of more than 50% of breast carcinoma cases with distant metastases. Moreover, the survival period is shorter for patients who had more than five CTCs after a single chemotherapy treatment. However, a few data show the relationships between CTCs and expressions of disseminated tumor cells in the bone marrow (DTCs-BM), including treatment effects and prognoses in early breast carcinomas. METHODS: In this study, CTCs and DTC-BMs were measured by the CellSearch System for 20 patients with stages 1-3 carcinomas, who were followed for 8-11 years...
December 1, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27909734/klf4-inhibits-tumor-growth-and-metastasis-by-targeting-microrna-31-in-human-hepatocellular-carcinoma
#9
Chuan Tian, Shanshan Yao, Li Liu, Youcheng Ding, Qingwang Ye, Xiao Dong, Yong Gao, Ning Yang, Qi Li
MicroRNAs (miRNAs or miRs) are short, endogenous non-coding RNA molecules, demonstrating abnormal expression in cancer initiation and progression. In this study, we profiled 18 differentially regulated miRNAs, including miRNA‑31, using miRNA array. Kruppel (or Krüppel)-like factor 4 (Klf4) is a transcription factor and putative tumor suppressor. Both were found to be significantly downregulated in liver cancer tissues and cells. However, little is known about the correlation between Klf4 and miRNA‑31 in hepatocellular carcinoma (HCC)...
November 24, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27909731/hypoxia-drives-the-transition-of-human-dermal-fibroblasts-to-a-myofibroblast-like-phenotype-via-the-tgf-%C3%AE-1-smad3-pathway
#10
Bin Zhao, Hao Guan, Jia-Qi Liu, Zhao Zheng, Qin Zhou, Jian Zhang, Lin-Lin Su, Da-Hai Hu
Keloids, partially considered as benign tumors, are characterized by the overgrowth of fibrosis beyond the boundaries of the wound and are regulated mainly by transforming growth factor (TGF)-β1, which induces the transition of fibroblasts to myofibroblasts. Hypoxia is an important driving force in the development of lung and liver fibrosis by activating hypoxia inducible factor-1α and stimulating epithelial‑mesenchymal transition. However, it is unknown whether and hypoxia can influence human dermal scarring...
December 1, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27909278/-surgical-treatment-of-right-atrial-malignant-tumor-thrombus-under-deep-hypothermia-with-intermittent-circulatory-arrest-report-of-two-cases
#11
Akira Fujita, Toshiro Kobayashi, Hideharu Hironaka, Mitsutaka Jinbou, Naomasa Uesugi, Satoshi Saito, Tsuyoshi Takahashi, Hidenori Gohra
Right atrial tumor thrombus is rare in patients with visceral malignant tumors and can cause right heart failure or sudden death. We present 2 cases of right atrial tumor thrombus treated under deep hypothermic intermittent circulatory arrest (DHICA). A 45-year-old man with right heart failure was diagnosed with right renal cancer extending to the right atrium. Computed tomography revealed no metastasis. He underwent right nephrectomy and tumor thrombus resection under DHICA. He was discharged on postoperative day 11 in good clinical course...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27909239/affinity-of-indocyanine-green-in-the-detection-of-colorectal-peritoneal-carcinomatosis-the-role-of-enhanced-permeability-and-retention-effect
#12
Alexandre Filippello, Jack Porcheron, Jean Philippe Klein, Michèle Cottier, Gabriele Barabino
Indocyanine green (ICG) is increasingly being used in digestive oncology. In colorectal cancer, ICG can be used to detect lymph node metastasis and hepatic metastasis on the surface of the liver. In peritoneal carcinomatosis, it was previously suspected that the diffusion of ICG in the tumor mass was due to the enhanced permeability and retention effect; however, this phenomenon has not been clearly demonstrated. Using bevacizumab, an antibody directed against vascular endothelial growth factor that consequently inhibits neoangiogenesis, we sought to confirm the mode of ICG diffusion...
November 30, 2016: Surgical Innovation
https://www.readbyqxmd.com/read/27908725/par3l-enhances-colorectal-cancer-cell-survival-by-inhibiting-lkb1-ampk-signaling-pathway
#13
Taiyuan Li, Dongning Liu, Xiong Lei, Qunguang Jiang
Partitioning defective 3-like protein (Par3L) is a recently identified cell polarity protein that plays an important role in mammary stem cell maintenance. Previously, we showed that high expression of Par3L is associated with poor survival in malignant colorectal cancer (CRC), but the underlying mechanism remained unknown. To this end, we established a Par3L knockout colorectal cancer cell line using the CRISPR/Cas system. Interestingly, reduced proliferation, enhanced cell death and caspase-3 activation were observed in Par3L knockout (KO) cells as compared with wildtype (WT) cells...
November 28, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27908221/dasatinib-prevent-hepatic-fibrosis-induced-by-carbon-tetrachloride-ccl4-via-anti-inflammatory-and-antioxidant-mechanism
#14
Adel Mohammadalipour, Jamshid Karimi, Iraj Khodadadi, Ghasem Solgi, Mohammad Hashemnia, Nasrin Sheikh, Majid Bahabadi
OBJECTIVES: Dasatinib, a potent and broad-spectrum tyrosine kinase inhibitor, is approved for the treatment of imatinib-resistant chronic myelogenous leukemia. The aim of this study was to evaluate the anti-fibrotic, anti-inflammatory and antioxidant effects of this agent against CCl4-induced hepatic fibrosis and oxidative status. MATERIALS AND METHODS: Experimental fibrosis was induced in Wistar male rats by 12 weeks of CCl4 administration (i.p.). During the last 8 weeks of injection, rats were gavaged daily with Dasatinib (10 mg/kg)...
December 1, 2016: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/27908157/volumetry-of-low-contrast-liver-lesions-with-ct-investigation-of-estimation-uncertainties-in-a-phantom-study
#15
Qin Li, Yongguang Liang, Qiao Huang, Min Zong, Benjamin Berman, Marios A Gavrielides, Lawrence H Schwartz, Binsheng Zhao, Nicholas Petrick
PURPOSE: To evaluate the performance of lesion volumetry in hepatic CT as a function of various imaging acquisition parameters. METHODS: An anthropomorphic abdominal phantom with removable liver inserts was designed for this study. Two liver inserts, each containing 19 synthetic lesions with varying diameter (6-40 mm), shape, contrast (10-65 HU), and both homogenous and mixed-density were designed to have background and lesion CT values corresponding to arterial and portal-venous phase imaging, respectively...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907819/giant-primary-malignant-mesothelioma-of-the-liver-a-case-report
#16
Ruba Haji Ali, Mohamad Khalife, Ghina El Nounou, Ruba Zuhri Yafi, Hussein Nassar, Zeinab Aidibe, Randa Raad, Rania Abou Eid, Walid Faraj
INTRODUCTION: Malignant mesothelioma is a rare neoplasm of mesothelial cells arising most frequently in the pleura or peritoneum and less frequently in the liver. CASE PRESENTATION: We present a case of primary hepatic mesothelioma of 41year old woman. She had no history of asbestos exposure or cancer. Abdominal computed tomography (CT) showed 21cm intrahepatic mass in the right lobe with many cystic lesions and few small calcifications. Pathology showed a biphasic cellular pattern...
November 11, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27907201/tumor-necrosis-factor-like-weak-inducer-of-apoptosis-promotes-hepatic-stellate-cells-migration-via-canonical-nf-%C3%AE%C2%BAb-mmp9-pathway
#17
Mingcui Xu, Feng Zhang, Aixiu Wang, Chen Wang, Yu Cao, Ming Zhang, Mingming Zhang, Min Su, Xiaoping Zou, Guifang Xu, Yuzheng Zhuge
In the liver, the signal and function of tumor necrosis factor-like weak inducer of apoptosis (TWEAK) have mainly been assessed in association with liver regeneration. However, the effects of TWEAK on liver fibrosis have not been fully elucidated. To investigate the effects of TWEAK on human hepatic stellate cells (HSCs) and to explore the relevant potential mechanisms, human HSCs line-LX-2 were cultured with TWEAK. Cell migration was detected by transwell assay; cell viability was evaluated by Cell Counting Kit-8; the expression of MMP1, MMP2, MMP3, MMP7, MMP8, MMP9, MMP10, MMP11, MMP12, MMP13 gene was identified by quantitative real-time polymerase chain reaction and western blotting; the activity of matrix metalloproteinases (MMPs) was tested by enzyme-linked immuno sorbent assay; small interfering RNA transfection was applied for depletion of MMP9 and p65...
2016: PloS One
https://www.readbyqxmd.com/read/27906881/stem-cells-and-clinical-practice-new-advances-and-challenges-at-the-time-of-emerging-problems-with-induced-pluripotent-stem-cell-therapies
#18
Mariusz Z Ratajczak, Kamila Bujko, Wojciech Wojakowski
Humans, like other species that reproduce sexually, originate from a fertilized oocyte (zygote), which is a totipotent stem cell giving rise to an adult organism. During the process of embryogenesis, stem cells at different levels of the developmental hierarchy establish all 3 germ layers and give rise to tissue‑committed stem cells, which are responsible for rejuvenation of a given tissue or organ. The robustness of the stem cell compartment is one of the major factors that directly impact life quality as well as lifespan...
November 10, 2016: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/27906723/safety-and-outcome-measures-of-first-in-human-intraperitoneal-%C3%AE-radioimmunotherapy-with-212pb-tcmc-trastuzumab
#19
Ruby F Meredith, Julien J Torgue, Tania A Rozgaja, Eileen P Banaga, Patty W Bunch, Ronald D Alvarez, J Michael Straughn, Michael C Dobelbower, Andrew M Lowy
PURPOSE: One-year monitoring of patients receiving intraperitoneal (IP) Pb-TCMC-trastuzumab to provide long-term safety and outcome data. A secondary objective was to study 7 tumor markers for correlation with outcome. METHODS: Eighteen patients with relapsed intra-abdominal human epidermal growth factor receptor-2 expressing peritoneal metastases were treated with a single IP infusion of Pb-TCMC-trastuzumab, delivered <4 h after 4 mg/kg IV trastuzumab. Seven tumor markers were studied for correlation with outcome...
November 30, 2016: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27905289/cerebral-alveolar-echinococcosis-concomitant-with-liver-and-lung-lesions-in-a-young-adult-patient-case-report-and-literature-review
#20
Osman Ersegun Batçık, Ahmet Öğrenci, Orkun Koban, Murat Şakir Ekşi, Turgay Bilge
We present the case of a 25-year-old male harboring multiple brain lesions mimicking tumor metastasis that were revealed to be caused by Echinococcus multilocularis. Cerebral echinococcosis with multiple lesions is rare and might be confused with a brain abscess, tuberculoma, or metastatic tumor disease. Brain magnetic resonance imaging and serological studies are helpful in the differential diagnosis. In case of E. multilocularis, cerebral invasion is the late stage of the disease that necessitates an aggressive treatment protocol...
September 2016: Türkiye Parazitolojii Dergisi
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