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https://www.readbyqxmd.com/read/28820310/orbital-mantle-cell-lymphoma-presenting-as-myasthenia-gravis
#1
Justin Karlin, Travis Peck, Karyn Prenshaw, Craig A Portell, Maria Kirzhner
A 69-year-old man, previously treated with pyridostigmine for myasthenia gravis (manifesting as ptosis and diplopia) was evaluated for several concomitant bilateral anterior orbital masses. Imaging revealed 3 discrete, solid masses within and around the orbits. An incisional biopsy demonstrated atypical lymphocytes positive for CD20 and Cyclin-D1, consistent with mantle cell lymphoma. The patient received induction chemotherapy with a rituximab-based regimen. He experienced resolution of his diplopia and ptosis after one cycle of chemotherapy and achieved complete remission of the orbital masses and myasthenia symptoms after 6 cycles...
August 18, 2017: Orbit
https://www.readbyqxmd.com/read/28819413/the-role-of-%C3%AE-catenin-in-the-initiation-and-metastasis-of-ta2-mice-spontaneous-breast-cancer
#2
Dan Zhang, Fei Fei, Shuyuan Li, Yongjie Zhao, Zhengduo Yang, Jie Qu, Xipeng Zhang, Yu Yin, Shiwu Zhang
Purpose: Tientsin Albino 2 (TA2) mice have a high incidence of spontaneous breast cancer. Tumor initiation is related to mouse mammary tumor virus (MMTV) infection. MMTV is hormonally regulated and may promote tumor formation via Wnt/β-catenin signaling pathway. This study attempts to clarify the relationship between β-catenin expression and the initiation and metastasis of spontaneous breast cancer in TA2 mice. Materials and Methods: Pathological samples illustrating the development of spontaneous breast cancer in TA2 mice were collected and the presence of virus particles was verified in the cancer tissue by electron microscope...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28818096/immunohistochemical-prognostic-markers-of-esophageal-squamous-cell-carcinoma-a-systematic-review
#3
Chunni Wang, Jingnan Wang, Zhaoli Chen, Yibo Gao, Jie He
BACKGROUND: Esophageal squamous cell carcinoma (ESCC) is an aggressive malignancy, with a high incidence and poor prognosis. In the past several decades, hundreds of proteins have been reported to be associated with the prognosis of ESCC, but none has been widely accepted to guide clinical care. This study aimed to identify proteins with great potential for predicting prognosis of ESCC. METHODS: We conducted a systematic review on immunohistochemical (IHC) prognostic markers of ESCC according to the 2009 Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Guidelines...
August 17, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28817550/role-of-microrna-93-i-in-pathogenesis-of-left-ventricular-remodeling-via-targeting-cyclin-d1
#4
Jingjing Zhang, Li Qin, Ling Han, Ying Zhao, Hongfeng Jing, Wei Song, Haili Shi
BACKGROUND The objective of this study was to identify the pathway responsible for ventricular remodeling. MATERIAL AND METHODS We collected remodeling myocardium tissue (n=18) and control myocardium tissue (n=22), and detected the expression of 4 miRNAs in these 2 groups using real-time PCR. We then searched the miRNA database online to find the candidate genes of miR-93. Real-time PCR and Western blot analysis were used to confirm the regulatory relationship. RESULTS We found that only miR-93 was decreased in remodeling myocardium tissue, and validated CCND1 to be the direct target gene of miR-93, with the "seed sequence" located within the 3'-UTR of the target gene via luciferase reporter assay system...
August 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28817404/primary-renal-sarcomas-with-bcor-ccnb3-gene-fusion-a-report-of-2-cases-showing-histologic-overlap-with-clear-cell-sarcoma-of-kidney-suggesting-further-link-between-bcor-related-sarcomas-of-the-kidney-and-soft-tissues
#5
Pedram Argani, Yu-Chien Kao, Lei Zhang, Carlos Bacchi, Andres Matoso, Rita Alaggio, Jonathan I Epstein, Cristina R Antonescu
We report 2 primary renal sarcomas demonstrating BCOR-CCNB3 gene fusions that have recently been identified in undifferentiated round cell sarcomas of bone and soft tissue. These neoplasms occurred in male children aged 11 and 12 years, and both were cystic as a result of entrapment and dilatation of native renal tubules. Both cases were composed of variably cellular bland spindle cells with fine chromatin set in myxoid stroma and separated by a branching capillary vasculature. Both neoplasms demonstrated immunoreactivity for BCOR, cyclin D1, TLE1, and SATB2 in the spindle neoplastic cells and negativity in the prominent capillary vasculature...
August 16, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28814279/musashi-1-is-the-candidate-of-the-regulator-of-hair-cell-progenitors-during-inner-ear-regeneration
#6
Takahiro Wakasaki, Hiroaki Niiro, Siamak Jabbarzadeh-Tabrizi, Mitsuru Ohashi, Takashi Kimitsuki, Takashi Nakagawa, Shizuo Komune, Koichi Akashi
BACKGROUND: Hair cell loss in the cochlea is caused by ototoxic drugs, aging, and environmental stresses and could potentially lead to devastating pathophysiological effects. In adult mammals, hair cell loss is irreversible and may result in hearing and balance deficits. In contrast, nonmammalian vertebrates, including birds, can regenerate hair cells through differentiation of supporting cells and restore inner ear function, suggesting that hair cell progenitors are present in the population of supporting cells...
August 16, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28811872/current-and-emerging-treatment-options-for-mantle-cell-lymphoma
#7
REVIEW
Bita Fakhri, Brad Kahl
Mantle cell lymphoma (MCL) is a B-cell non-Hodgkin lymphoma with typically aggressive behavior. The genetic signature is the chromosomal translocation t(11;14)(q13;q32) resulting in overexpression of cyclin D1. Asymptomatic newly diagnosed MCL patients with low tumor burden can be closely observed, deferring therapy to the time of disease progression. Although MCL classically responds to upfront chemotherapy, it remains incurable with standard approaches. For patients in need of frontline therapy, the initial decision is whether to proceed with an intensive treatment strategy or a non-intensive treatment strategy...
August 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/28811522/the-lichen-secondary-metabolite-atranorin-suppresses-lung-cancer-cell-motility-and-tumorigenesis
#8
Rui Zhou, Yi Yang, So-Yeon Park, Thanh Thi Nguyen, Young-Woo Seo, Kyung Hwa Lee, Jae Hyuk Lee, Kyung Keun Kim, Jae-Seoun Hur, Hangun Kim
Lichens are symbiotic organisms that produce various secondary metabolites. Here, different lichen extracts were examined to identify secondary metabolites with anti-migratory activity against human lung cancer cells. Everniastrum vexans had the most potent inhibitory activity, and atranorin was identified as an active subcomponent of this extract. Atranorin suppressed β-catenin-mediated TOPFLASH activity by inhibiting the nuclear import of β-catenin and downregulating β-catenin/LEF and c-jun/AP-1 downstream target genes such as CD44, cyclin-D1 and c-myc...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811128/a-newly-synthesized-ligustrazine-stilbene-derivative-inhibits-pdgf-bb-induced-vascular-smooth-muscle-cell-phenotypic-switch-and-proliferation-via-delaying-cell-cycle-progression
#9
Chunlian Peng, Siming Zhang, Haixin Liu, Yanxiao Jiao, Guifa Su, Yan Zhu
Vascular Smooth muscle cells (VSMCs) possess remarkable phenotype plasticity that allows it to rapidly adapt to fluctuating environmental cues, including the period of development and progression of vascular diseases such as atherosclerosis and restenosis subsequent to vein grafting or coronary intervention. Although VSMC phenotypic switch is an attractive target, there is no effective drug so far. Using rat aortic VSMCs, we investigate the effects of Ligustrazine and its synthetic derivatives on platelet-derived growth factor-BB (PDGF-BB) induced proliferation and phenotypic switch by a cell image-based screening of 60 Ligustrazine stilbene derivatives...
August 12, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28810862/the-cytotoxic-mechanism-of-epigallocatechin-gallate-on-proliferative-hacat-keratinocytes
#10
Yu-Wen Chu, Shu-Ting Liu, Ya-Lan Yang, Shih-Ming Huang, Wei-Ming Wang
BACKGROUND: Epigallocatechin gallate (EGCG) is the major ingredient of sinecatechins ointment, approved for the treatment of external genital and perianal warts. However, the molecular mechanism for EGCG's effect on warts resulting from the human papillomavirus (HPV) infection of keratinocytes is not well understood. HPV may survive in proliferative keratinocytes and may be involved in cell cycle regulation and progression. The objective of this study was to investigate the mechanism underlying EGCG's treatment on external genital warts of HPV infection through the cultured keratinocyte cells from the HaCaT cell line...
August 15, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28810532/plga-ctab-curcumin-nanoparticles-fabrication-characterization-and-molecular-basis-of-anticancer-activity-in-triple-negative-breast-cancer-cell-lines-mda-mb-231-cells
#11
Ramovatar Meena, Sumit Kumar, Raj Kumar, Usha Singh Gaharwar, Paulraj Rajamani
Triple-negative breast cancers (TNBC) are aggressive cancers, which do not control by hormonal therapy or therapies that target HER-2 receptors. Curcumin (Cur) has shown cytotoxic effects in multiple cancer cell lines. However, its medical uses remain limited due to low aqueous solubility and poor bioavailability. Therefore, present study was aimed to fabricate the small positive charge curcumin nanoparticles (CN) by nanoprecipitation methods using PLGA and CTAB, and to evaluate its anticancer efficacy and underlying the mechanism in triple negative breast cancer cell lines (MDA-MB-231 cells)...
August 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28809055/apoptotic-effect-of-astragalin-in-melanoma-skin-cancers-via-activation-of-caspases-and-inhibition-of-sry-related-hmg-box-gene-10
#12
Ok Heui You, Eun Ah Shin, Hyemin Lee, Ju-Ha Kim, Deok Yong Sim, Jung Hyo Kim, Younghwan Kim, Jae-Ho Khil, Nam-In Baek, Sung-Hoon Kim
Though Astragalin (kaempferol-3-glucoside) contained in Paeonia lactiflora and other plants was known to have anti-oxidant, antiinflammatory, and anti-tumor activity, the anti-tumor mechanism of Astragalin has never been reported in melanomas until now. Thus, in the present study, the underlying apoptotic mechanism of Astragalin isolated from Aceriphyllum rossii was elucidated in A375P and SK-MEL-2 melanoma cells. Astragalin exerted cytotoxicity in A375P and SK-MEL-2 cells in a concentration-dependent manner...
August 15, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28808208/effects-of-bisphenol-compounds-on-the-growth-and-epithelial-mesenchymal-transition-of-mcf-7-cv-human-breast-cancer-cells
#13
Ji-Youn Kim, Ho-Gyu Choi, Hae-Miru Lee, Geum-A Lee, Kyung-A Hwang, Kyung-Chul Choi
Bisphenol-A (BPA) has been considered as an endocrine disrupting chemical (EDC) because it can exert estrogenic properties. For bisphenol-S (BPS) and bisphenol-F (BPF) that are BPA analogs and substitutes, their risk to estrogen-dependent cancer has been reported rarely compared with the numerous cases of BPA. In this study, we examined whether BPA, BPS, and BPF can lead to the proliferation, migration, and epithelial mesenchymal transition (EMT) of MCF-7 clonal variant (MCF-7 CV) breast cancer cells expressing estrogen receptors (ERs)...
July 13, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28804564/incrna-h19-promotes-tongue-squamous-cell-carcinoma-progression-through-%C3%AE-catenin-gsk3%C3%AE-emt-signaling-via-association-with-ezh2
#14
Da-Ming Zhang, Zhao-Yu Lin, Zhao-Hui Yang, You-Yuan Wang, Di Wan, Jiang-Long Zhong, Pei-Lin Zhuang, Zhi-Quan Huang, Bin Zhou, Wei-Liang Chen
H19 is involved in tumor metastasis and associated with tumor progression. Enhancer of zest homolog 2 (EZH2) is overexpressed in multiple cancer types and correlates with tumor proliferation, epithelial-mesenchymal transition, and poor prognosis. However, the interaction between H19 and EZH2 to promote tongue squamous cell carcinoma (TSCC) progression remains largely uncharacterized. Insitu hybridization and quantitative reverse-transcription PCR (qRT-PCR) were performed to measure H19 expression in primary TSCC and adjacent normal tissues and cell lines...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804550/long-noncoding-rna-meg3-suppressed-endothelial-cell-proliferation-and-migration-through-regulating-mir-21
#15
Ziheng Wu, Yangyan He, Donglin Li, Xin Fang, Tao Shang, Hongkun Zhang, Xiangtao Zheng
Long non-coding RNAs (lncRNAs) act critical roles in many biological processes, including cell proliferation, apoptosis, development, invasion and migration. LncRNA maternally expressed gene 3 (MEG3) is found to be downregulated in several tumors; however, its role in the atherosclerosis is still unknown. In the present study, we demonstrated that MEG3 expression level was downregulated in the coronary artery disease (CAD) tissues compared to in the control tissues. We also showed that TNF-α enhanced EC cell proliferation...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28803992/p-rex1-amplification-promotes-progression-of-cutaneous-melanoma-via-the-pak1-p38-mmp-2-pathway
#16
Jinhua Wang, Hajime Hirose, Guanhua Du, Kelly Chong, Eiji Kiyohara, Isaac P Witz, Dave S B Hoon
P-REX1 (PIP3-dependent Rac exchange factor-1) is a guanine nucleotide exchange factor that activates Rac by catalyzing exchange of GDP for GTP bound to Rac. Aberrant up-regulation of P-REX1 expression has a role in metastasis however, copy number (CN) and function of P-REX1 in cutaneous melanoma are unclear. To explore the role of P-REX1 in melanoma, SNP 6.0 and Exon 1.0 ST microarrays were assessed. There was a higher CN (2.82-fold change) of P-REX1 in melanoma cells than in melanocytes, and P-REX1 expression was significantly correlated with P-REX1 CN...
August 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28803881/cell-specific-and-dose-dependent-effects-of-pahs-on-proliferation-cell-cycle-and-apoptosis-protein-expression-and-hormone-secretion-by-placental-cell-lines
#17
Eliza Drwal, Agnieszka Rak, Adam Grochowalski, Tomasz Milewicz, Ewa Lucja Gregoraszczuk
In the preset study we measured the concentrations of 16 priority PAHs in maternal blood and placental tissue by using the GC-MS/MS system, and investigated the effects of selected PAHs (naphthalene, anthracene, phenanthrene, pyrene) and mixtures on BeWo and JEG-3 human placental cell line proliferation (Alamar Blue), cytotoxicity (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (XTT), lactate dehydrogenase (LDH), acid phosphatase (AP), endocrine activity (progesterone and estradiol secretion) and apoptosis (cyclin A1, cyclin D2, cdk 2, cdk 4, Bcl-xl, Bax, and caspase-3 protein expression)...
August 10, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28803233/comprehensive-analysis-of-the-chemical-composition-and-in-vitro-cytotoxic-mechanisms-of-pallines-spinosa-flower-and-leaf-essential-oils-against-breast-cancer-cells
#18
Ayman M Saleh, Mahmoud A Al-Qudah, Amre Nasr, Sayed A Rizvi, Anwar Borai, Mustafa Daghistani
BACKGROUND/AIMS: In our quest for new natural anticancer agents, we studied the cytotoxicity of the essential oils extracted from flowers and leaves of Pallines spinosa. METHODS: The essential oils were extracted by hydrodistillation and solid phase microextraction (SPME) from flowers and leaves of the plant and their composition was determined by GC/GC-MS. The cytotoxicity of the oils was evaluated against MCF-7 and MDA-MB-231 breast adenocarcinomas, and the non-cancerous MCF-10-2A cells, using a flow cytometry-based assay Apoptosis was evaluated by flow cytometry, nuclear staining, caspases activation, and Western blotting techniques, and cell cycle by measuring DNA contents...
August 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28802717/chronic-d609-treatment-interferes-with-cell-cycle-and-targets-the-expression-of-olig2-in-glioma-stem-like-cells
#19
Haviryaji S G Kalluri, John S Kuo, Robert J Dempsey
Glioma Stem-like Cells (GSCs) isolated from patient derived tumors have high metabolic activity and survive in the absence of exogenous growth factors. We recently demonstrated that acute D609 (Tricyclodecan-9-yl-xanthogenate), a PC-PLC inhibitor with anti-oxidative property, can decrease the ATP content & GADD45β protein in GSCs cultured without growth factors, but not in the presence of growth factors. In this study we examined the effect of chronic D609 treatment on GSCs cultured in complete medium containing growth factors...
August 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28802234/paqr3-overexpression-suppresses-the-aggressive-phenotype-of-esophageal-squamous-cell-carcinoma-cells-via-inhibition-of-erk-signaling
#20
Ge Bai, Jianhu Chu, Mayinur Eli, Yongxing Bao, Hao Wen
Progestin and adipoQ receptor family member 3 (PAQR3) has exhibited anticancer activity in multiple malignancies. However, its expression and function in esophageal squamous cell carcinoma (ESCC) is still elusive. In this work, we examined the expression of PAQR3 in 40 surgically resected ESCC specimens and their adjacent normal tissues. The expression of PAQR3 in ESCC cell lines was measured after treatment with the demethylating agent 5-aza-2'-deoxycytidine (5-Aza-CdR). The effects of overexpression of PAQR3 on cell proliferation, colony formation, invasion, and tumorigenesis were investigated...
August 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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