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https://www.readbyqxmd.com/read/28107185/hyaluronan-synthase-3-mediated-oncogenic-action-through-forming-inter-regulation-loop-with-tumor-necrosis-factor-alpha-in-oral-cancer
#1
Yi-Zih Kuo, Wei-Yu Fang, Cheng-Chih Huang, Sen-Tien Tsai, Yi-Ching Wang, Chih-Li Yang, Li-Wha Wu
Hyaluronan (HA) is a major extracellular matrix component. However, its role and mediation in oral cancer remains elusive. Hyaluronan synthase 3 (HAS3), involved in pro-inflammatory short chain HA synthesis, was the predominant synthase in oral cancer cells and tissues. HAS3 overexpression significantly increased oral cancer cell migration, invasion and xenograft tumorigenesis accompanied with the increased expression of tumor necrosis factor alpha (TNF-α) and monocyte chemoattractant protein 1 (MCP-1). Conversely, HAS3 depletion abrogated HAS3-mediated stimulation...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28101204/downregulation-of-mir-221-222-by-a-microrna-sponge-promotes-apoptosis-in-oral-squamous-cell-carcinoma-cells-through-upregulation-of-pten
#2
Lijie Zhou, Fangfang Jiang, Xijuan Chen, Zifeng Liu, Ying Ouyang, Wei Zhao, Dongsheng Yu
MicroRNA-221 and microRNA-222 (miR-221/222) have been identified as oncogenes and confirmed to be overexpressed in various types of cancer. However, the regulation mechanism of miR-221/222 in oral squamous cell carcinoma (OSCC) remains to be fully elucidated. Previously, an miR-221/222 sponge was successfully constructed and its effect on the downregulation of miR-221/222 expression was investigated. In the present study, the dual luciferase reporter assay revealed a phosphatase and tensin homolog (PTEN) deletion on chromosome 10 to be a target gene of miR-221/222...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28096095/functional-role-and-therapeutic-targeting-of-p21-associated-kinase-4-pak4-in-multiple-myeloma
#3
Mariateresa Fulciniti, Joaquin Martinez-Lopez, William Senapedis, Stefania Oliva, Rajya Lakshmi Bandi, Nicola Amodio, Yan Xu, Raphael L Szalat, Annamaria Gulla, Mehmet K Samur, Aldo Roccaro, Maria Linares, Michele Cea, Erkan Baloglu, Christian Argueta, Yosef Landesman, Sharon Shacham, Siyuan Liu, Monica Schenone, Shiaw-Lin Wu, Barry Karger, Rao Prabhala, Kenneth C Anderson, Nikhil C Munshi
Dysregulated oncogenic serine/threonine kinases play a pathological role in diverse forms of malignancies, including multiple myeloma (MM), and thus represent potential therapeutic targets. Here, we evaluated the biological and functional role of p21-activated kinase 4 (PAK4), and its potential as a new target in MM for clinical applications. PAK4 promoted MM cell growth and survival via activation of MM survival signaling pathways, including the MEK-ERK pathway. Furthermore, treatment with orally bioavailable PAK4 allosteric modulator (KPT-9274) significantly impacted MM cell growth and survival in a large panel of MM cell lines and primary MM cells alone and in the presence of bone marrow microenvironment...
January 17, 2017: Blood
https://www.readbyqxmd.com/read/28093311/long-non-coding-rna-fth1p3-facilitates-oral-squamous-cell-carcinoma-progression-by-acting-as-a-molecular-sponge-of-mir-224-5p-to-modulate-fizzled-5-expression
#4
Chen-Zheng Zhang
A growing body of evidence has indicated that long non-coding RNAs (lncRNAs) function as competing endogenous RNAs (ceRNAs) during tumorigenesis. In this study, the qRT-PCR results revealed that the lncRNA ferritin heavy chain 1 pseudogene 3 (FTH1P3) was over-expressed in oral squamous cell carcinoma (OSCC) and decreased the survival rate of OSCC patients. Ectopic expression of FTH1P3 facilitates cell proliferation and colony formation in OSCC cells. Moreover, FTH1P3 acted as a competitive endogenous RNA (ceRNA), effectively becoming sponge for miR-224-5p and thereby modulating the expression of fizzled 5...
January 13, 2017: Gene
https://www.readbyqxmd.com/read/28092667/oncogenic-braf-fusions-in-mucosal-melanomas-activate-the-mapk-pathway-and-are-sensitive-to-mek-pi3k-inhibition-or-mek-cdk4-6-inhibition
#5
H S Kim, M Jung, H N Kang, H Kim, C-W Park, S-M Kim, S J Shin, S H Kim, S G Kim, E K Kim, M R Yun, Z Zheng, K Y Chung, J Greenbowe, S M Ali, T-M Kim, B C Cho
Despite remarkable progress in cutaneous melanoma genomic profiling, the mutational landscape of primary mucosal melanomas (PMM) remains unclear. Forty-six PMMs underwent targeted exome sequencing of 111 cancer-associated genes. Seventy-six somatic nonsynonymous mutations in 42 genes were observed, and recurrent mutations were noted on eight genes, including TP53 (13%), NRAS (13%), SNX31 (9%), NF1 (9%), KIT (7%) and APC (7%). Mitogen-activated protein kinase (MAPK; 37%), cell cycle (20%) and phosphatidylinositol 3-kinase (PI3K)-mTOR (15%) pathways were frequently mutated...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28088212/ultrasensitive-detection-of-oncogenic-human-papillomavirus-in-oropharyngeal-tissue-swabs
#6
Andre Isaac, Morris Kostiuk, Han Zhang, Cameron Lindsay, Fawaz Makki, Daniel A O'Connell, Jeffrey R Harris, David W J Cote, Hadi Seikaly, Vincent L Biron
BACKGROUND: The incidence of oropharyngeal squamous cell carcinoma (OPSCC) caused by oncogenic human papillomavirus (HPV) is rising worldwide. HPV-OPSCC is commonly diagnosed by RT-qPCR of HPV E6 and E7 oncoproteins or by p16 immunohistochemistry (IHC). Droplet digital PCR (ddPCR) has been recently reported as an ultra-sensitive and highly precise method of nucleic acid quantification for biomarker analysis. To validate the use of a minimally invasive assay for detection of oncogenic HPV based on oropharyngeal swabs using ddPCR...
January 14, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28081185/upregulated-expression-of-transient-receptor-potential-cation-channel-subfamily-v-receptors-in-mucosae-of-patients-with-oral-squamous-cell-carcinoma-and-patients-with-a-history-of-alcohol-consumption-or-smoking
#7
Akiko Sakakibara, Shunsuke Sakakibara, Junya Kusumoto, Daisuke Takeda, Takumi Hasegawa, Masaya Akashi, Tsutomu Minamikawa, Kazunobu Hashikawa, Hiroto Terashi, Takahide Komori
OBJECTIVES: Transient receptor potential cation channel (subfamily V, members 1-4) (TRPV1-4) are expressed in skin and neurons and activated by external stimuli in normal mucosae of all oral cavity sites. The oral cavity is exposed to various stimuli, including temperature, mechanical stimuli, chemical substances, and changes in pH, and, notably, the risk factors for oncogenic transformation in oral squamous epithelium are the same as the external stimuli received by TRPV1-4 receptors...
2017: PloS One
https://www.readbyqxmd.com/read/28030842/loss-of-runx3-expression-inhibits-bone-invasion-of-oral-squamous-cell-carcinoma
#8
Junhee Park, Hyun-Jeong Kim, Ki Rim Kim, Sun Kyoung Lee, Hyungkeun Kim, Kwang-Kyun Park, Won-Yoon Chung
High recurrence and lower survival rates in patients with oral squamous cell carcinoma (OSCC) are associated with its bone invasion. We identified the oncogenic role of RUNX3 during bone invasion by OSCC. Tumor growth and the generation of osteolytic lesions were significantly inhibited in mice that were subcutaneously inoculated with RUNX3-knockdown human OSCC cells. RUNX3 knockdown enhanced TGF-β-induced growth arrest and inhibited OSCC cell migration and invasion in the absence or presence of transforming growth factor-β (TGF-β), a major growth factor abundant in the bone microenvironment...
December 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/28012149/endoplasmic-reticulum-stress-and-apoptosis-triggered-by-sub-chronic-lead-exposure-in-mice-spleen-a-histopathological-study
#9
Giovanni Corsetti, Claudia Romano, Alessandra Stacchiotti, Evasio Pasini, Francesco S Dioguardi
Lead (Pb) is an environmental oncogenic metal that induces immunotoxicity and anaemia. Emerging evidence has linked Pb toxicity with endoplasmic reticulum-driven apoptosis and autophagy. Glucose-regulated protein of 78 kDa (Grp78 or binding immunoglobulin protein (BiP)), a master endoplasmic reticulum chaperone, drives macrophage activation and regulates protein folding and calcium flux in response to heavy metals. The spleen may be involved in Pb poisoning due to its crucial role in erythrocatheresis and immune response, although there are no data to support this theory...
December 24, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27999209/s4s8-rpa-phosphorylation-as-an-indicator-of-cancer-progression-in-oral-squamous-cell-carcinomas
#10
Jeff Rector, Sasha Kapil, Kelly J Treude, Phyllis Kumm, Jason G Glanzer, Brendan M Byrne, Shengqin Liu, Lynette M Smith, Dominick J DiMaio, Peter Giannini, Russell B Smith, Greg G Oakley
Oral cancers are easily accessible compared to many other cancers. Nevertheless, oral cancer is often diagnosed late, resulting in a poor prognosis. Most oral cancers are squamous cell carcinomas that predominantly develop from cell hyperplasias and dysplasias. DNA damage is induced in these tissues directly or indirectly in response to oncogene-induced deregulation of cellular proliferation. Consequently, a DNA Damage response (DDR) and a cell cycle checkpoint is activated. As dysplasia transitions to cancer, proteins involved in DNA damage and checkpoint signaling are mutated or silenced decreasing cell death while increasing genomic instability and allowing continued tumor progression...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27973759/an-update-on-the-implications-of-cyclin-d1-in-oral-carcinogenesis
#11
REVIEW
Pablo Ramos-García, José Antonio Gil-Montoya, Crispian Scully, Ángela Ayén, Lucía González-Ruiz, Francisco-José Navarro-Triviño, Miguel Ángel González-Moles
Cyclin D1 promotes cell cycle progression during G1 phase, a key event in G1-S transition. The protein is encoded by gene CCND1, located in chromosomal band 11q13. Cyclin D1 plays key roles in cell biology, including: cell proliferation and growth regulation, mitochondrial activity modulation, DNA repair, and cell migration control. CCND1 gene and its protein cyclin D1 are frequently altered by different molecular mechanisms, including amplification, chromosomal translocations, mutations, and activation of the pathways involved in cyclin D1 expression, alterations which appear to be essential in the development of human cancers, including oral carcinoma...
December 14, 2016: Oral Diseases
https://www.readbyqxmd.com/read/27941877/repression-of-caspase-3-and-rna-binding-protein-hur-cleavage-by-cyclooxygenase-2-promotes-drug-resistance-in-oral-squamous-cell-carcinoma
#12
H Janakiraman, R P House, S Talwar, S M Courtney, E S Hazard, G Hardiman, S Mehrotra, P H Howe, V Gangaraju, V Palanisamy
A well-studied RNA-binding protein Hu Antigen-R (HuR), controls post-transcriptional gene regulation and undergoes stress-activated caspase-3 dependent cleavage in cancer cells. The cleavage products of HuR are known to promote cell death; however, the underlying molecular mechanisms facilitating caspase-3 activation and HuR cleavage remains unknown. Here, we show that HuR cleavage associated with active caspase-3 in oral cancer cells treated with ionizing radiation and chemotherapeutic drug, paclitaxel. We determined that oral cancer cells overexpressing cyclooxygenase-2 (COX-2) limited the cleavage of caspase-3 and HuR, which reduced the rate of cell death in paclitaxel resistant oral cancer cells...
December 12, 2016: Oncogene
https://www.readbyqxmd.com/read/27935063/human-papillomavirus-hpv-infection-in-a-case-control-study-of-oral-squamous-cell-carcinoma-and-its-increasing-trend-in-northeastern-thailand
#13
Pensiri Phusingha, Tipaya Ekalaksananan, Patravoot Vatanasapt, Kulchaya Loyha, Supannee Promthet, Bunkerd Kongyingyoes, Natcha Patarapadungkit, Jureeporn Chuerduangphui, Chamsai Pientong
Human papillomavirus (HPV) is an independent risk factor for development of oral squamous cell carcinoma (OSCC). This study aimed to investigate the role of HPV infection and the trend in percentage of HPV-associated OSCC over a 5-year period in northeastern Thailand. In this case-control study, 91 exfoliated oral cell samples and 80 lesion cell samples from OSCC cases and exfoliated oral cells from 100 age/gender-matched controls were collected. HPV infection was investigated by PCR using GP5+/GP6+ primers followed by HPV genotyping using reverse line blot hybridization...
December 9, 2016: Journal of Medical Virology
https://www.readbyqxmd.com/read/27930766/differences-in-the-prevalence-of-human-papillomavirus-hpv-in-head-and-neck-squamous-cell-cancers-by-sex-race-anatomic-tumor-site-and-hpv-detection-method
#14
Gypsyamber D'Souza, William H Westra, Steven J Wang, Annemieke van Zante, Alicia Wentz, Nicole Kluz, Eleni Rettig, William R Ryan, Patrick K Ha, Hyunseok Kang, Justin Bishop, Harry Quon, Ana P Kiess, Jeremy D Richmon, David W Eisele, Carole Fakhry
Importance: Human papillomavirus (HPV) causes an increasing proportion of oropharyngeal squamous cell carcinomas (OPSCCs), particularly in white men. The prevalence of HPV among other demographic groups and other anatomic sites of HNSCC is unclear. Objective: To explore the role of HPV tumor status among women and nonwhites with OPSCC and patients with nonoropharyngeal head and neck squamous cell carcinoma (non-OP HNSCC). Design, Setting, and Participants: Retrospective cohort study at 2 tertiary academic centers including cases diagnosed 1995 through 2012, oversampled for minorities and females...
December 8, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27929118/exosomal-microrna-mir-1246-induces-cell-motility-and-invasion-through-the-regulation-of-dennd2d-in-oral-squamous-cell-carcinoma
#15
Sujata Sakha, Tomoki Muramatsu, Koji Ueda, Johji Inazawa
Metastasis is associated with poor prognosis in cancers. Exosomes, which are packed with RNA and proteins and are released in all biological fluids, are emerging as an important mediator of intercellular communication. However, the function of exosomes remains poorly understood in cancer metastasis. Here, we demonstrate that exosomes isolated by size-exclusion chromatography from a highly metastatic human oral cancer cell line, HOC313-LM, induced cell growth through the activation of ERK and AKT as well as promoted cell motility of the poorly metastatic cancer cell line HOC313-P...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27926533/andrographolide-impedes-cancer-stemness-and-enhances-radio-sensitivity-in-oral-carcinomas-via-mir-218-activation
#16
Po-Yu Yang, Pei-Ling Hsieh, Tong Hong Wang, Cheng-Chia Yu, Ming-Yi Lu, Yi-Wen Liao, Tzu-Hsin Lee, Chih-Yu Peng
Current evidence suggests that oral cancer stem cells (OCSCs) possess high tumorigenic and metastatic properties as well as chemo- and radioresistance. In this study, we demonstrated that andrographolide, the main bioactive component in the medicinal plant Andrographis, significantly reduced oncogenicity and restored radio-sensitivity of ALDH1+CD44+ OCSCs. Mechanistic studies showed that andrographolide treatment increased the expression of microRNA-218 (miR-218), leading to the downregulation of Bmi1. We showed that knockdown of miR-218 in ALDH1-CD44- non-OCSCs enhanced cancer stemness, while silencing of Bmi1 significantly counteracted it...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27923688/paraoxonase-3-promotes-cell-proliferation-and-metastasis-by-pi3k-akt-in-oral-squamous-cell-carcinoma
#17
Lili Zhu, Yiyin Shen, Wei Sun
Paraoxonase 3 (PON3) is an oncogene in cancer, however, little is known about the mechanisms and roles of PON3 in oral squamous cell carcinoma (OSCC), which is the aim of our study. We found that the expression of PON3 was up-regulated in OSCC samples and cell lines. PON3 was associated with accelerating cell proliferation, cell cycle, migration and invasion in OSCC cells. Further research showed that PON3 was regulated by PI3K/Akt pathway. We also found that AP-1 was an important transcriptional factor regulating PON3 expression in OSCC...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27914687/braf-nras-kit-tert-gnaq-gna11-mutation-profile-analysis-of-head-and-neck-mucosal-melanomas-a-study-of-42-cases
#18
Şule Öztürk Sari, İsmaİl Yilmaz, Orhun Çiğ Taşkin, Gİzem Narli, Fatma Şen, Şenol Çomoğlu, Pinar Firat, Bİlge Bİlgİç, Dİlek Yilmazbayhan, Yasemİn Özlük, Nesİmİ Büyükbabanİ
Head and neck mucosal melanoma (HNMuM), which occurs mostly in the sinonasal and oral cavity, constitutes less than 1% of all malignant melanomas. Treatment options fail to improve the prognosis of this aggressive tumour that has low overall survival rates. Thus, development of new targeted therapies is essential. Unfortunately, limited data exist regarding their molecular profile. BRAF, NRAS, KIT, TERT and GNAQ/GNA11 oncogene mutations were investigated in 42 HNMuMs (28 sinonasal, 13 oral, 1 nasopharyngeal)...
January 2017: Pathology
https://www.readbyqxmd.com/read/27904766/the-role-of-pim1-in-the-ibrutinib-resistant-abc-subtype-of-diffuse-large-b-cell-lymphoma
#19
Hsu-Ping Kuo, Scott A Ezell, Sidney Hsieh, Karl J Schweighofer, Leo Wk Cheung, Shiquan Wu, Mutiah Apatira, Mint Sirisawad, Karl Eckert, Yu Liang, Jeff Hsu, Chun-Te Chen, Darrin Beaupre, Betty Y Chang
Diffuse large B cell lymphoma (DLBCL) is a heterogeneous lymphoma and the most common subtype of non-Hodgkin lymphoma, accounting for roughly 30% of newly diagnosed cases in the United States. DLBCL can be separated into the activated B cell-like (ABC) and germinal center B cell-like (GCB) subtypes, with distinct gene expression profiles, oncogenic aberrations, and clinical outcomes. ABC-DLBCL is characterized by chronically active B-cell receptor (BCR) signaling that can be modulated by Bruton's tyrosine kinase (BTK) activity...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27891533/screening-for-cancer-in-persons-living-with-hiv-infection
#20
James J Goedert, H Dean Hosgood, Robert J Biggar, Howard D Strickler, Charles S Rabkin
Survival with human immunodeficiency virus (HIV) infection has greatly improved due to effective antiretroviral therapy (ART). As infectious complications have declined, malignancy now accounts for over one-third of deaths among people living with HIV (PLWH). Based on practices in the general population, cancer screening of PLWH can decrease both morbidity and mortality. In this article, we review and consider directed approaches for colorectal, breast, cervical and lung cancer screening. Furthermore, routine physical examinations may detect lymphomas and skin, anal and oral cancers...
August 2016: Trends in Cancer
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