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https://www.readbyqxmd.com/read/28653289/histamine-h4-receptor-signalling-in-tongue-cancer-and-its-potential-role-in-oral-carcinogenesis%C3%A2-a-short-report
#1
Abdelhakim Salem, Rabeia Almahmoudi, Dyah Listyarifah, Maria Siponen, Katariina Maaninka, Ahmed Al-Samadi, Tuula Salo, Kari K Eklund
PURPOSE: Recent reports indicate that histamine and its novel, high-affinity histamine H4 receptor (H4R) play a role in carcinogenesis, and thus H4R signalling has become a focus of increasing interest in the pathogenesis of many cancers. The roles of H4R in oral epithelial dysplasia (OED) and oral tongue squamous cell carcinoma (OTSCC) are unknown. The purpose of this study was to assess H4R expression in OTSCC patients and in OTSCC-derived cell lines. METHODS: Biopsies taken from OED, OTSCC and healthy oral mucosa were studied by immunostaining...
June 26, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28622012/tracheobronchomalacia-is-associated-with-increased-morbidity-in-bronchopulmonary-dysplasia
#2
Erik B Hysinger, Nicholas L Friedman, Michael A Padula, Russell T Shinohara, Huayan Zhang, Howard B Panitch, Steven M Kawut
RATIONALE: Tracheobronchomalacia is a common comorbidity in neonates with bronchopulmonary dysplasia. However, the effect of tracheobronchomalacia on the clinical course of bronchopulmonary dysplasia is not well-understood. OBJECTIVE: We sought to assess the impact of tracheobronchomalacia on outcomes in neonates with bronchopulmonary dysplasia in a large, multi-center cohort. METHODS: We preformed a cohort study of 974 neonates with bronchopulmonary dysplasia admitted to 27 neonatal intensive care units participating in the Children's Hospital Neonatal Database who had undergone bronchoscopy...
June 16, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28612463/meta-analysis-of-the-predictive-value-of-dna-aneuploidy-in-malignant-transformation-of-oral-potentially-malignant-disorders
#3
REVIEW
N A Alaizari, M Sperandio, E W Odell, D Peruzzo, S A Al-Maweri
DNA aneuploidy is an imbalance of chromosomal DNA content that has been highlighted as a predictor of biological behavior and risk of malignant transformation. To date, DNA aneuploidy in oral potentially malignant diseases (OPMD) has been shown to correlate strongly with severe dysplasia and high-risk lesions that appeared non-dysplastic can be identified by ploidy analysis. Nevertheless, the prognostic value of DNA aneuploidy in predicting malignant transformation of OPMD remains to be validated. The aim of this meta-analysis was to assess the role of DNA aneuploidy in predicting malignant transformation in OPMD...
June 14, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28605602/role-of-primary-cilia-in-odontogenesis
#4
M Hampl, P Cela, H L Szabo-Rogers, M Kunova Bosakova, H Dosedelova, P Krejci, M Buchtova
Primary cilium is a solitary organelle that emanates from the surface of most postmitotic mammalian cells and serves as a sensory organelle, transmitting the mechanical and chemical cues to the cell. Primary cilia are key coordinators of various signaling pathways during development and maintenance of tissue homeostasis. The emerging evidence implicates primary cilia function in tooth development. Primary cilia are located in the dental epithelium and mesenchyme at early stages of tooth development and later during cell differentiation and production of hard tissues...
June 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28603941/higher-expression-of-wnt5a-protein-in-oral-squamous-cell-carcinoma-compared-with-dysplasia-and-oral-mucosa-with-a-normal-appearance
#5
Zdenka Prgomet, Tommy Andersson, Pia Lindberg
WNT5A is a secreted signaling protein that promotes migration and invasion of oral squamous cell carcinoma (OSCC) cells through activation of non-canonical WNT signaling. Here, we examined expression of WNT5A, β-catenin, and E-cadherin by immunohistochemistry in 21 human diagnostic incision biopsies that each had regions of oral mucosa with a normal appearance adjacent to the affected tissue, dysplasia, and OSCC. We also investigated the effect of recombinant WNT5A (rWNT5A) on expression of the cell-adhesion proteins E-cadherin and β-catenin by western blot analysis...
June 12, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28592326/the-genomic-road-to-invasion-examining-the-similarities-and-differences-in-the-genomes-of-associated-oral-pre-cancer-and-cancer-samples
#6
Henry M Wood, Catherine Daly, Rebecca Chalkley, Burcu Senguven, Lisa Ross, Philip Egan, Preetha Chengot, Jennifer Graham, Neeraj Sethi, Thian K Ong, Kenneth MacLennan, Pamela Rabbitts, Caroline Conway
BACKGROUND: It is frequently assumed that pre-invasive lesions are simpler precursors of cancer and will contain a limited subset of the genomic changes seen in their associated invasive disease. Driver mutations are thought to occur early, but it is not known how many of these are present in pre-invasive lesions. These assumptions need to be tested with the increasing focus on both personalised cancer treatments and early detection methodologies. METHODS: We examined genomic copy number changes in 256 pre-invasive and invasive samples from 69 oral cancer patients...
June 7, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28585308/immunosurveillance-profile-of-oral-squamous-cell-carcinoma-and-oral-epithelial-dysplasia-through-dendritic-and-t-cells-analysis
#7
Ana Carolina Amorim Pellicioli, Lynne Bingle, Paula Farthing, Márcio Ajudarte Lopes, Manoela Domingues Martins, Pablo Agustin Vargas
Oral squamous cell carcinomas (OSCC) can arise from potentially malignant disorders, such as leukoplakia. The immune system plays an important role recognizing tumour precursor cells. However, due to immunoediting mechanisms cancer cells are able to escape immune system surveillance. OBJECTIVE: Evaluate the profile of dendritic (Langerhans and plasmacytoid) and T cells in OSCC and oral epithelial dysplasia (OED) and correlate these findings with clinical data. MATERIALS AND METHODS: Fifty cases of OSCC and 48 of OED were immunostained for CD1a and CD83 dendritic Langerhans cells (DLC), plasmacytoid dendritic cells (pDC) CD303 and CD8 followed by quantitative analysis...
June 5, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28584781/clinicopathological-profile-and-malignant-transformation-in-oral-lichen-planus-a-retrospective-study
#8
Alokenath Bandyopadhyay, Shyam Sundar Behura, Roquaiya Nishat, Kailash Chandra Dash, Lipsa Bhuyan, Sujatha Ramachandra
OBJECTIVES: The aim of this study was to analyze the histopathologically diagnosed cases of oral lichen planus (OLP) in terms of age, gender, clinical variant, site, hyperpigmentation, systemic illness, grade of dysplasia, and associated malignant transformation. This study also intended to do a review of reported cases of OLP with malignant transformation. MATERIALS AND METHODS: One hundred and forty-three cases of histopathologically diagnosed OLP between 2010 and 2016 were retrospectively reviewed...
May 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28578077/oral-rehabilitation-with-implant-supported-fixed-dental-prostheses-of-a-patient-with-cleidocranial-dysplasia
#9
Fethi Atil, Ahmet Culhaoglu, Ismail Doruk Kocyigit, Zahit Adisen, Melda Misirlioglu, Burak Yilmaz
This clinical report describes the oral rehabilitation with implant-supported fixed dental prostheses in the maxilla and mandible of a patient with cleidocranial dysplasia. Cone-beam computed tomography and a tilted implant protocol in the mandible helped to establish a conservative approach for bone preservation, prevent surgical complications, enable proper implant positioning to avoid anatomic structures, and support the fixed dental prostheses.
May 31, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28574023/comparison-of-injectable-doxorubicin-its-nanodrug-complex-chemotherapy-for-the-treatment-of-4-nitroquinoline-1-oxide-induced-oral-squamous-cell-carcinoma-in-rats
#10
Monir Moradzadeh Khiavi, Khadijeh Abdal, Mehran Mesgari Abbasi, Hamed Hamishehkar, Amir Ala Aghbali, Roya Salehi, Mahmoud Sina, Bita Abdollahi, Soheila Fotohi
BACKGROUND & OBJECTIVES: Combination treatments of chemotherapy and nanoparticle drug delivery have shown significant promise in cancer treatment. The aim of the present study was to compare the efficacy of a nanodrug complex with its free form in the treatment of tongue squamous cell carcinoma induced by 4-nitroquinoline-1-oxide in rats. METHODS: In this study, 75 male Sprague-Dawley rats were divided into five groups. Oral squamous cell carcinoma (OSCC) was induced by using 4- nitroquinoline-1-oxide (4NQO) as a carcinogen...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28554768/caveolin-1-expression-in-oral-lichen-planus-dysplastic-lesions-and-squamous-cell-carcinoma
#11
Zohreh Jaafari-Ashkavandi, Ehsan Aslani
Caveolin-1(Cav-1), the main part of caveolae structure, is supposed to play a role in pathogenesis of many human tumors. Since oral lichen planus (OLP) is considered as a potential premalignant disease, this study evaluated Cav-1 expression in OLP in comparison with benign hyperkeratosis, dysplastic epithelium and oral squamous cell carcinoma (OSCC), to investigate its possible role in pathogenesis and malignant transformation of OLP. In this cross-sectional retrospective study, immunohistochemical expression of Cav-1 in the epithelial component and stroma was evaluated in 81 samples, including 12 cases of hyperkeratosis, 24 OLP, 22 epithelial dysplasia, and 23 OSCC samples...
March 9, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28551628/regulation-of-mirna-146a-and-mirna-150-levels-by-celecoxib-in-premalignant-lesions-of-k14-hpv16-mice
#12
Rui M Gil DA Costa, Rita Araújo, Joana M O Santos, Mara Fernandes, Tiago Neto, Hugo Sousa, Joana Ribeiro, Margarida M S M Bastos, Paula A Oliveira, Diogo Carmo, Fátima Casaca, Sandra Silva, Carlos Lopes, Rui Medeiros
BACKGROUND/AIM: Human papillomavirus type 16 (HPV16) induces various types of cancer in several locations. Microenvironmental microRNAs (miRNAs) such as miRNA-146a and miRNA-150 regulate cancer-associated inflammation and are involved in HPV-induced carcinogenesis. We studied the effects of celecoxib on the expression of these two miRNAs in HPV16-induced lesions. MATERIALS AND METHODS: Female transgenic (HPV16(+/-)) and wild-type (HPV16(-/-)) mice were administered 75 mg/kg/day celecoxib orally (treatment groups) or placebo (control groups) for four weeks...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28543539/dna-damage-marker-%C3%AE-h2ax-is-a-potential-predictive-marker-for-progression-of-epithelial-dysplasia-of-the-oral-cavity
#13
E Y Leung, J D McMahon, D McLellan, N Syyed, C E McCarthy, C Nixon, C Orange, C Brock, K Hunter, P D Adams
AIMS: To evaluate the relationships between immunohistochemical markers related to cellular senescence, cell proliferation and histological grade of epithelial dysplasia of the oral cavity (OD). In addition, the predictive value of these markers for progression of OD was assessed. METHODS: Retrospective immunohistochemical analyses were performed on 86 formalin fixed and paraffin embedded specimens of OD and oral squamous cell carcinoma (OSCC) for Ki67, γH2AX, p53, p16, H3K9me3 and CycD1...
May 19, 2017: Histopathology
https://www.readbyqxmd.com/read/28534319/case-report-human-papilloma-virus-type-120-related-papillomatosis-mimicking-laryngeal-carcinoma
#14
Valeria Belvisi, Salvatore Martellucci, Anna Rosa Garbuglia, Cosmo Del Borgo, Stanislao Martellucci, Andrea Baiocchini, Anna Maria Manicone, Oreste Bagni, Claudio Maria Mastroianni, Andrea Gallo
INTRODUCTION: The relationship between human papilloma virus (HPV) and upper respiratory tract pathology was better understood in recent years and represents now an issue of particular interest in carcinogenesis and in immunocompromised host. We describe a case in which a rare genotype HPV-related papillomatosis mimics laryngeal carcinoma in an immunocompromised host. METHODS: A 54-year-old woman with a history of HIV-HCV coinfection and anal and laryngeal cancer successfully treated some years before was hospitalized for severe dyspnea, cough and dysphagia...
May 22, 2017: Infection
https://www.readbyqxmd.com/read/28514239/understanding-women-s-sexual-behaviors-that-may-put-them-at-risk-for-human-papillomavirus-related-neoplasias-what-should-we-ask
#15
Amita Kulkarni, Tram Tran, Christine Luis, Christina A Raker, Beth Cronin, Katina Robison
OBJECTIVES: Human papillomavirus is a multifocal infection that can involve the cervix, vagina, vulva, anus, and oropharynx. Our study aimed to determine whether standard sexual history questions regarding anal intercourse identify women participating in anal-related sexual practices. MATERIALS AND METHODS: A cross-sectional survey was conducted at the dysplasia clinic of a large academic medical center. Women presenting with human papillomavirus-related cervical, vulvar, or vaginal abnormalities were eligible...
May 16, 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/28512746/a-panel-of-micrornas-can-be-used-to-determine-oral-squamous-cell-carcinoma
#16
Gareema Prasad, Christine Seers, Eric Reynolds, Michael J McCullough
BACKGROUND: Subjective histopathology is currently used to diagnose oral squamous cell carcinoma (OSCC). We tested if abundances of a panel of microRNA could be an objective OSCC indicator. METHOD: Literature review enabled identification of 10 microRNAs associated with oral and head and neck malignancies. We extracted RNA from formalin-fixed paraffin embedded biopsies; 20 each with OSCC, dysplasia or histologically normal epithelium (HNE) and 10 with oral lichen planus (OLP)...
May 17, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28511503/evaluation-of-total-and-lipid-bound-sialic-acid-in-serum-in-oral-leukoplakia
#17
Karthik Krishnan, Sivapathasundharam Balasundaram
INTRODUCTION: Oral cancer has become the most common cause of cancer related mortality which may be preceded by oral potentially malignant disorders. Altered glycosylation of glycoconjugates, such as sialic acid are one of the most important molecular changes accompanied during malignant transformation in precancerous lesions like Oral Leukoplakia (OL), and correlating them histopathologically with grades of epithelial dysplasia which will serve clinical significance. AIM: The aim of this study was to evaluate the significance of serum Total Sialic Acid (TSA) and serum Lipid Bound Sialic Acid (LSA) as a prognostic serum marker in Oral Leukoplakia...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28502067/predictive-value-of-salivary-microrna-320a-vascular-endothelial-growth-factor-receptor-2-crp-and-il-6-in-oral-lichen-planus-progression
#18
Minoo Shahidi, Soudeh Jafari, Mahmood Barati, Masoumeh Mahdipour, Mohammad Saeed Gholami
INTRODUCTION: MicroRNA (miRNA) 320a and vascular endothelial growth factor receptor 2 (VEGFR-2) expression as the angiogenic biomarkers might be therapeutic targets in Oral lichen planus (OLP). IL-6 and C-reactive protein (CRP) could be prognostic in OLP, dysplastic OLP and Oral squamous cell carcinoma (OSCC). Therefore, their salivary detections as the noninvasive tools were aimed in this study. MATERIALS AND METHODS: Histopathologic examinations were carried out to distinguish the patients with dysplastic OLP and OSCC...
May 13, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28499713/long-term-outcomes-of-oesophageal-atresia-without-or-with-proximal-tracheooesophageal-fistula-gross-types-a-and-b
#19
A I Koivusalo, S J Sistonen, H G Lindahl, R J Rintala, M P Pakarinen
PURPOSE: Because of an extended gap between esophageal pouches a variety of methods are employed to treat oesophageal atresia (OA) without (type A) or with (type B) proximal tracheooesophageal fistula. This retrospective observational study describes their single centre long-term outcomes from 1947 to 2014. METHODS: Of 693 patients treated for OA 68 (9.7%) had type A (n=58, 8.3%) or B (n=10, 1.4%). Hospital records were reviewed. Main outcome measures were survival and oral intake...
May 1, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28490040/individualized-plastic-reconstruction-strategy-for-patients-with-ectodermal-dysplasia-syndrome
#20
Yikang Hou, Yunbo Jin, Xiaoxi Lin, Gang Chai, Yan Zhang, Zuoliang Qi
Ectodermal dysplasia syndrome is a hereditary disease of ectodermal origin. Appearances of nail dystrophy, alopecia or hypotrichosis, saddle nose deformity, and palmoplantar hyperkeratosis are usually associated with a lack of sweat glands as well as partial or complete absence of teeth. These manifestations are usually corrected only with oral rehabilitation by mounting dentures. In this study, plastic rehabilitation was developed to correct the special features of patients with ectodermal dysplasia. Four men and 1 woman with ectodermal dysplasia syndrome were treated...
June 2017: Annals of Plastic Surgery
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