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https://www.readbyqxmd.com/read/28644424/the-indirect-efficacy-comparison-of-dna-methylation-in-sputum-for-early-screening-and-auxiliary-detection-of-lung-cancer-a-meta-analysis
#1
REVIEW
Di Liu, Hongli Peng, Qi Sun, Zhongyao Zhao, Xinwei Yu, Siqi Ge, Hao Wang, Honghong Fang, Qing Gao, Jiaonan Liu, Lijuan Wu, Manshu Song, Youxin Wang
BACKGROUND: DNA methylation in sputum has been an attractive candidate biomarker for the non-invasive screening and detection of lung cancer. MATERIALS AND METHODS: Databases including PubMed, Ovid, Cochrane library, Web of Science databases, Chinese Biological Medicine (CBM), Chinese National Knowledge Infrastructure (CNKI), Wanfang, Vip Databases and Google Scholar were searched to collect the diagnostic trials on aberrant DNA methylation in the screening and detection of lung cancer published until 1 December 2016...
June 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28641314/no-additional-prognostic-value-for-mre11-in-squamous-cell-carcinomas-of-the-anus-treated-with-chemo-radiotherapy
#2
Alexandra K Walker, Christiana Kartsonaki, Elena Collantes, Judith Nicholson, Duncan C Gilbert, Anne E Kiltie
BACKGROUND: The majority of anal cancers (84-95%) are driven by infection with human papillomavirus (HPV). HPV-positive tumours show significantly better responses to chemo-radiotherapy when compared with HPV-negative tumours. HPV infection is linked to alterations in DNA damage response proteins, including MRE11. MRE11 is a potential predictive biomarker for response to radiotherapy in muscle-invasive bladder cancer and may hold predictive power in other cancers. METHODS: Using a previously reported cohort, we evaluated the levels of MRE11 in anal cancer and assessed its predictive value in this disease...
June 22, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28639061/oral-and-oropharyngeal-papillomas-are-not-associated-with-high-risk-human-papillomavirus-infection
#3
Miroslaw Snietura, Roman Lamch, Agnieszka Kopec, Dariusz Waniczek, Wirginia Likus, Dariusz Lange, Jaroslaw Markowski
The role of different types of human papillomavirus (HPV) in the development of oral and oropharyngeal papillomas remains unclear. High-risk HPV (HR-HPV) was shown to be involved in the pathogenesis of significant proportion of squamous cell carcinomas of the oropharynx. In this study, we hypothesized that in some oropharyngeal papillomas, low-risk HPV (LR-HPV) and HR-HPV infection could co-exist, similar to what is observed in genital warts, and thus contribute to the elevated risk of malignancy. To test this hypothesis, we used real-time PCR to assess the presence of HPV DNA of 16 types (2 LR-HPV and 14 HR-HPV), in 75 formalin-fixed and paraffin-embedded histopathological samples of oral and oropharyngeal papillomas and in 57 squamous cell carcinomas from the same regions...
June 21, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28636996/increased-p16-and-p53-protein-expression-predicts-poor-prognosis-in-mucosal-melanoma
#4
Hanbin Chen, Yangyang Li, Yin Long, Erjiang Tang, Rongrong Wang, Kate Huang, Congying Xie, Guorong Chen
Primary mucosal melanoma (MM) is a rare, and aggressive, neoplasm with a poor prognosis. To date, few prognostic markers of MM have been well-defined. The aim of this study is to clarify the prognostic value of p53 and p16 proteins in predicting the clinical outcome of Chinese patients with MM.A total of 59 MM samples were contained from biopsy specimens, and, expressions of p53 and p16 proteins were assessed by immunohistochemistry. Cox regression analysis was performed to investigate the association of these proteins with the overall survival of MM patients...
June 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28633676/evaluation-of-p16-expression-in-canine-appendicular-osteosarcoma
#5
B G Murphy, M Y Mok, D York, R Rebhun, K D Woolard, C Hillman, P Dickinson, K Skorupski
BACKGROUND: Osteosarcoma (OSA) is a common malignant bone tumor of large breed dogs that occurs at predictable anatomic sites. At the time of initial diagnosis, most affected dogs have occult pulmonary metastases. Even with aggressive surgical treatment combined with chemotherapy, the majority of dogs diagnosed with OSA live less than 1 year from the time of diagnosis. The ability to identify canine OSA cases most responsive to treatment is needed. In humans, OSA is also an aggressive tumor that is histologically and molecularly similar to canine OSA...
June 20, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28631712/-the-molecular-mechanisms-and-morphological-manifestations-of-leiomyoma-reduction-induced-by-selective-progesterone-receptor-modulators
#6
T A Demura, Z V Revazova, E A Kogan, L V Adamyan
AIM: to investigate the molecular mechanisms and morphological substrate of reduced uterine leiomyoma in patients receiving the selective progesterone receptor modulator (SPRM) ulipristal acetate for 3 months, by estimating the immunohistochemical expression of the markers steroid receptor coactivator 1 (SRC-1), nuclear receptor corepressor 1 (NCoR-1), ER, PgR, Ki-67, p16, TGF-β, and VEGF in tumor tissue. SUBJECTS AND METHODS: The investigation enrolled 75 women with uterine leiomyoma, menorrhagias, and anemia...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28630279/obesity-and-p16-ink4a-down-regulation-activate-breast-adipocytes-and-promote-their-pro-tumorigenicity
#7
Huda H Al-Khalaf, Mrad Amir, Falah Al-Mohanna, Asma Tulbah, Adher Al-Sayed, Abdelilah Aboussekhra
Obesity is increasingly recognized as a risk factor for breast cancer development. However, the molecular basis of obesity-related breast carcinogenesis remains elusive. In this study, we have shown that obesity reduces the level of the tumor suppressor p16(INK4A) protein in breast adipocytes, which showed active features and strong pro-carcinogenic potential both in vitro and in orthotopic tumor xenografts, as compared to mature adipocytes from lean women. Furthermore, obesity triggered epithelial-to-mesenchymal transition (EMT) in breast ductal epithelial cells...
June 19, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28627707/tremella%C3%A2-fuciformis-polysaccharide-suppresses-hydrogen-peroxide-triggered-injury-of-human-skin-fibroblasts-via-upregulation-of-sirt1
#8
Tao Shen, Chao Duan, Beidong Chen, Meng Li, Yang Ruan, Danni Xu, Doudou Shi, Dan Yu, Jian Li, Changtao Wang
Tremella fuciformis polysaccharide (TFPS), which is the extract of Tremella fuciformis Berk, has previously been demonstrated to exhibit potent anti‑oxidative, anti‑inflammatory and anti‑aging effects. However, the mechanisms underlying these protective and therapeutic effects remain to be elucidated. The aim of the present study was to investigate the protective effects of TFPS on hydrogen peroxide‑induced injury of human skin fibroblasts and to elucidate the aforementioned underlying mechanisms...
June 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627689/expression-of-cell-cycle-related-proteins-in-oropharyngeal-squamous-cell-carcinoma-based-on-human-papilloma-virus-status
#9
Koudai Tsuchida, Tamotsu Sugai, Noriyuki Uesugi, Kazuyuki Ishida, Kazuto Matsuura, Ikuro Sato, Kiyoto Shiga, Hiroaki Sato
The molecular association between human papilloma virus (HPV) and cell cycle-related (CCR) proteins is not fully understood in oropharyngeal squamous cell carcinoma (OPSCC). Herein, we examined the expression levels of CCRs in OPSCCs based on HPV status. In situ hybridization (ISH)- and polymerase chain reaction (PCR)-based assays were used to detect HPV status in 98 OPSCCs, and CCRs were detected by immunostaining. Of 98 tumors, 47 had HPV-positive tumors by either ISH- or PCR-based assays. Concordance analysis between ISH- and PCR-based tests showed a good agreement in OPSCC...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28626969/different-patterns-of-expression-of-cell-cycle-control-and-local-invasion-related-proteins-in-oral-squamous-cell-carcinoma-affecting-young-patients
#10
Marisol Miranda Galvis, Alan Roger Santos-Silva, Juscelino Freitas Jardim, Felipe Paiva Fonseca, Marcio A Lopes, Oslei P Almeida, Clóvis A Lópes Pinto, Estela Kaminagakura, Iris Sawazaki-Calone, Paul M Speight, Luiz Paulo Kowalski
Oral squamous cell carcinoma (OSCC) predominantly affects males in the fifth decade of life; nevertheless, an increased incidence in young patients has been reported worldwide and the clinical and behavioral characteristics of tumors in this group are controversial and the literature shows divergent results PURPOSE: To investigate the clinicopathological features and prognostic significance of the immunoexpression of cell cycle and local invasion proteins in OSCC affecting young patients (≤ 40 years old) METHODS: A tissue microarray was performed with 132 OSCC samples (61 cases of young patients vs...
June 19, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28624236/regulation-of-the-proprotein-convertases-expression-and-activity-during-regenerative-angiogenesis-role-of-hypoxia-inducible-factor-hif
#11
Jia Ma, Serge Evrard, Iker Badiola, Geraldine Siegfried, Abdel-Majid Khatib
Proprotein convertases (PCs) are involved in various physiological and pathological processes ranging from embryogenesis to carcinogenesis. Here, using the zebrafish fin regeneration model, we report induced expression of furin and PC5 but not PACE4 and PC7 during fin regeneration that is associated with increased PC activity. Stabilization of HIF by cobalt chloride (CoCl2) further increases these processes. The use of the general PC-inhibitor decanoyl-RVKR-cholromethyl ketone (CMK) inhibited control and CoCl2-induced PC activity...
June 12, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28622890/evaluation-of-type-specific-antibodies-to-high-risk-human-papillomavirus-hpv-proteins-in-patients-with-oropharyngeal-cancer
#12
Martina A Broglie, Wolfram Jochum, Angelika Michel, Tim Waterboer, Diana Foerbs, René Schoenegg, Sandro J Stoeckli, Michael Pawlita, Dana Holzinger
OBJECTIVES: High risk human papillomavirus (HR-HPV) infection leads to a subgroup of oropharyngeal cancer (OPSCC) characterized by improved treatment response. However an universally accepted definition of an HR-HPV-attributable cancer is lacking. METHODS: Detailed, type-specific HPV antibody responses were analyzed by multiplex serology in HR-HPV-attributable OPSCC patients, defined by p16(INK4A) overexpression and HR-HPV DNA detection by PCR amplification and sequencing...
July 2017: Oral Oncology
https://www.readbyqxmd.com/read/28621317/p16-immunohistochemistry-in-oropharyngeal-squamous-cell-carcinoma-a-comparison-of-antibody-clones-using-patient-outcomes-and-high-risk-human-papillomavirus-rna-status
#13
Jeremy Shelton, Bibianna M Purgina, Nicole A Cipriani, William D Dupont, Dale Plummer, James S Lewis
High-risk human papillomavirus (HPV)-related oropharyngeal squamous cell carcinomas have a more favorable prognosis than HPV-negative ones. p16 immunohistochemistry has been recommended as a prognostic test in clinical practice. Several p16 antibodies are available, and their performance has not been directly compared. We evaluated three commercially available p16 antibody clones (E6H4, JC8 and G175-405) utilizing 199 cases of oropharyngeal squamous cell carcinoma from a tissue microarray, read by three pathologists with three different cutoffs for positivity: any staining, >50% and >75%...
June 16, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28621161/dna-methylation-patterns-in-ulcerative-colitis-associated-cancer-a-systematic-review
#14
Ruth A Emmett, Katherine L Davidson, Nicholas J Gould, Ramesh P Arasaradnam
BACKGROUND: Evidence points to the role of DNA methylation in ulcerative colitis (UC) associated cancer (UCC), the most serious complication of ulcerative colitis. A better understanding of the etiology of UCC may facilitate the development of new therapeutic targets and help to identify biomarkers of the disease risk. METHODS: A search was performed in three databases following PRISMA protocol. DNA methylation in UCC was compared with sporadic colorectal cancer (SCRC), and individual genes differently methylated in UCC identified...
June 16, 2017: Epigenomics
https://www.readbyqxmd.com/read/28620984/saliva-testing-for-hpv-in-oropharyngeal-squamous-cell-carcinoma-opscc-a-diagnostic-accuracy-study
#15
Ali Qureishi, Mohammad Ali, Lisa Fraser, Ketan A Shah, Henrik Møller, Stuart Winter
BACKGROUND: New cases of oropharyngeal squamous cell carcinoma (OPSCC) are routinely tested for HPV. HPV in saliva can be detected with PCR, but its clinical applicability in the context of OPSCC remains unknown. METHODS: Forty-six consecutive patients diagnosed with OPSCC had pre-treatment saliva specimens collected. PCR for HPV on saliva was compared to p16 IHC and HPV DNA in-situ hybridisation (ISH) on surgical biopsies. RESULTS: The sensitivity and specificity of saliva testing when compared to the reference test of p16 IHC and HPV DNA ISH was 72...
June 16, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28620118/role-of-p38-mapk-pathway-in-the-effects-of-high-magnitude-compression-on-nucleus-pulposus-cell-senescence-in-a-disc-perfusion%C3%A2-culture
#16
Pei Li, Ruijie Zhang, Yuan Xu, Lei Song, Qiang Zhou
Nucleus pulposus (NP) cell senescence is a typical pathological feature within the degenerative intervertebral disc. As a potential inducing and aggregating factor of disc degeneration, mechanical overloading affects disc biology in multiple ways. This study was to investigate the NP cell senescence-associated phenotype under intermittent high compression in an ex vivo disc bioreactor culture, and the role of the p38-MAPK pathway in this regulatory process. Porcine discs were cultured in culture chambers of a self-developed mechanically active bioreactor and subjected to different magnitudes of dynamic compression (low-magnitude and high-magnitude: 0...
June 15, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28618923/serum-autoantibodies-against-a-panel-of-15-tumor-associated-antigens-in-the-detection-of-ovarian-cancer
#17
Hao Sun, Jian-Xiang Shi, Hong-Fei Zhang, Meng-Tao Xing, Pei Li, Li-Ping Dai, Cheng-Lin Luo, Xiao Wang, Peng Wang, Hua Ye, Liu-Xia Li, Jian-Ying Zhang
In this study, enzyme-linked immunosorbent assay has been used to examine the frequencies of serum autoantibodies against two candidate tumor-associated antigens intensively selected from the Human Protein Atlas database, in combination with 13 tumor-associated antigens available from our lab in sera from 44 OC patients and 50 normal healthy controls. Conventional evaluation (mean + 3SD as the cutoff value to determine a positive reactivity), receiver operating characteristic curve analyses, and classification tree analysis were further used to evaluate the diagnostic performance of autoantibodies against these tumor-associated antigens (anti-tumor-associated antigens) in ovarian cancer...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28617833/clinical-performance-validation-of-pitx2-dna-methylation-as-prognostic-biomarker-in-patients-with-head-and-neck-squamous-cell-carcinoma
#18
Verena Sailer, Heidrun Gevensleben, Joern Dietrich, Diane Goltz, Glen Kristiansen, Friedrich Bootz, Dimo Dietrich
BACKGROUND: Despite advances in combined modality therapy, outcomes in head and neck squamous cell cancer (HNSCC) remain dismal with five-year overall survival rates of less than 50%. Prognostic biomarkers are urgently needed to identify patients with a high risk of death after initial curative treatment. Methylation status of the paired-like homeodomain transcription factor 2 (PITX2) has recently emerged as a powerful prognostic biomarker in various cancers. In the present study, the clinical performance of PITX2 methylation was validated in a HNSCC cohort by means of an independent analytical platform (Infinium HumanMethylation450 BeadChip, Illumina, Inc...
2017: PloS One
https://www.readbyqxmd.com/read/28617556/correlation-between-methylation-of-the-p16-promoter-and-cervical-cancer-incidence
#19
F-L Wang, Y Yang, Z-Y Liu, Y Qin, T Jin
OBJECTIVE: To study the methylation of the promoter of the p16 gene in cervical cancer patients and explore the correlation between methylation and the incidence of cervical cancer. PATIENTS AND METHODS: We recruited 78 patients with cervical cancer and 48 healthy individuals. The methylation-specific PCR was used to detect the methylation status in the promoter of the p16 gene. The mRNA expression of p16 was studied by quantitative fluorescence PCR. The protein expression of p16 was monitored by Enzyme-linked immunosorbent assay (ELISA) and Western blot...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28617435/interaction-between-autophagy-and-senescence-is-required-for-dihydroartemisinin-to-alleviate-liver-fibrosis
#20
Zili Zhang, Zhen Yao, Shifeng Zhao, Jiangjuan Shao, Anping Chen, Feng Zhang, Shizhong Zheng
Autophagy and cellular senescence are stress responses essential for homeostasis. Therefore, they may represent new pharmacologic targets for drug development to treat diseases. In this study, we sought to evaluate the effect of dihydroartemisinin (DHA) on senescence of activated hepatic stellate cells (HSCs), and to further elucidate the underlying mechanisms. We found that DHA treatment induced the accumulation of senescent activated HSCs in rat fibrotic liver, and promoted the expression of senescence markers p53, p16, p21 and Hmga1 in cell model...
June 15, 2017: Cell Death & Disease
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