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Cancer: Squamous Cell Carcinoma
Infectious Disease: Human Papillomavirus (HPV)

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Total 16 results found since Jan 2013.

Cancers, Vol. 15, Pages 3810: Characterization of DoTc2 4510 & mdash;Identifying HPV16 Presence in a Cervical Carcinoma Cell Line Previously Considered to Be HPV-Negative
Cancers, Vol. 15, Pages 3810: Characterization of DoTc2 4510—Identifying HPV16 Presence in a Cervical Carcinoma Cell Line Previously Considered to Be HPV-Negative Cancers doi: 10.3390/cancers15153810 Authors: Nika Vučković Karin Hoppe-Seyler Angelika B. Riemer Cervical cancer is the fourth leading cause of cancer deaths in women, with over 340,000 women dying from this disease in 2020. Almost all cases have an underlying persistent infection with an oncogenic high-risk type of human papillomavirus (HPV), mainly HPV16. While cervical squamous cell carcinoma is hardly ever HPV-negative, a small subset...
Source: Cancers - July 27, 2023 Category: Cancer & Oncology Authors: Nika Vu čković Karin Hoppe-Seyler Angelika B. Riemer Tags: Article Source Type: research

Activation of p53-regulated pro-survival signals and hypoxia-independent mitochondrial targeting of TIGAR by human papillomavirus E6 oncoproteins
Virology. 2023 May 22;585:1-20. doi: 10.1016/j.virol.2023.05.004. Online ahead of print.ABSTRACTThe high-risk subtype human papillomaviruses (hrHPVs) infect and oncogenically transform basal epidermal stem cells associated with the development of squamous-cell epithelial cancers. The viral E6 oncoprotein destabilizes the p53 tumor suppressor, inhibits p53 K120-acetylation by the Tat-interacting protein of 60 kDa (TIP60, or Kat5), and prevents p53-dependent apoptosis. Intriguingly, the p53 gene is infrequently mutated in HPV + cervical cancer clinical isolates which suggests a possible paradoxical role for this gatekeeper i...
Source: Virology - May 31, 2023 Category: Virology Authors: Lacin Yapindi Tetiana Bowley Nick Kurtaneck Rachel L Bergeson Kylie James Jillian Wilbourne Carolyn K Harrod Brenda Y Hernandez Brooke M Emerling Courtney Yates Robert Harrod Source Type: research

The Significance of CD109 Expression in Oropharyngeal Squamous Cell Carcinoma
CONCLUSION: CD109 expression is associated with poor prognosis of HPV16+ OPSCCs.PMID:35347029 | DOI:10.21873/anticanres.15687
Source: Cell Research - March 29, 2022 Category: Cytology Authors: Shohei Tsutsumi Kaho Momiyama Masaaki Ichinoe Takuya Kato Sachiyo Mogi Shunsuke Miyamoto Yoshiki Murakumo Taku Yamashita Source Type: research

Cancers, Vol. 12, Pages 2963: CTEN Induces Tumour Cell Invasion and Survival and Is Prognostic in Radiotherapy-Treated Head and Neck Cancer
Kim Gareth J. Thomas Head and neck squamous cell carcinoma (HNSCC) is a heterogenous disease treated with surgery and/or (chemo) radiotherapy, but up to 50% of patients with late-stage disease develop locoregional recurrence. Determining the mechanisms underpinning treatment resistance could identify new therapeutic targets and aid treatment selection. C-terminal tensin-like (CTEN) is a member of the tensin family, upregulated in several cancers, although its expression and function in HNSCC are unknown. We found that CTEN is commonly upregulated in HNSCC, particularly HPV−ve tumours. In vitro CTEN was...
Source: Cancers - October 13, 2020 Category: Cancer & Oncology Authors: Jason C. Fleming Jeongmin Woo Karwan Moutasim Christopher J. Hanley Steven J. Frampton Oliver Wood Matthew Ward Christopher H Woelk Christian H. Ottensmeier Sassan Hafizi Dae Kim Gareth J. Thomas Tags: Article Source Type: research

WNT1, a target of miR-34a, promotes cervical squamous cell carcinoma proliferation and invasion by induction of an E-P cadherin switch via the WNT/ β-catenin pathway
ConclusionsFrom our results we conclude that WNT1, as a target of miR-34a, can promote cervical SCC cell proliferation and invasion by induction of an E-P cadherin switch via the WNT1/ β-catenin pathway. Our results may provide new options for the treatment of patients with cervical SCC.
Source: Cellular Oncology - April 15, 2020 Category: Cancer & Oncology Source Type: research

Cancers, Vol. 11, Pages 1848: The Potential Impact of Connexin 43 Expression on Bcl-2 Protein Level and Taxane Sensitivity in Head and Neck Cancers –In Vitro Studies
This study aimed to test the role of Cx43 protein on Bcl-2 expression, tumor progression and response to taxane-based treatment in HNSCC. Human papillomavirus (HPV) negative HNSCC cell lines were tested for paclitaxel sensitivity through measuring apoptosis induction, cell viability and changes in Cx43 and Bcl-2 levels using flow cytometry, cell viability assay, immunocytochemistry and western blot. Inhibition of Cx43 expression using siRNA increased Bcl-2 protein levels in SCC25 (tongue squamous cell carcinoma) cells, while forced Cx43 expression reduced Bcl-2 levels and supported paclitaxel cytotoxicity in FaDu (hypophar...
Source: Cancers - November 21, 2019 Category: Cancer & Oncology Authors: Bianka Gurbi Di ána Brauswetter Attila Varga P ál Gyulavári Kinga P énzes J ózsef Murányi Veronika Z ámbó Ede Birtalan Tibor Kren ács David Laurence Becker Mikl ós Csala Istv án Vályi-Nagy Istv án Peták Korn él Dános Tags: Article Source Type: research

Systems Biology Approaches and Precision Oral Health: A Circadian Clock Perspective
Conclusion Most head and neck pathologies show a broad cellular heterogeneity making it difficult to achieve an accurate diagnosis and efficient treatment (Graf and Zavodszky, 2017; Lo Nigro et al., 2017). Single cell analysis of circadian omics (Lande-Diner et al., 2015; Abraham et al., 2018), may be a crucial tool needed in the future to fully understand the circadian control of head and neck diseases. It becomes more obvious that there is only a small genetic component but a largely unknown epigenetics and/or environmental component for most of the head and neck pathologies (Moosavi and Motevalizadeh Ardekani, 2016; He...
Source: Frontiers in Physiology - April 15, 2019 Category: Physiology Source Type: research

HPV16 E6-E7 induces cancer stem-like cells phenotypes in esophageal squamous cell carcinoma through the activation of PI3K/Akt signaling pathway in vitro and in vivo.
Authors: Xi R, Pan S, Chen X, Hui B, Zhang L, Fu S, Li X, Zhang X, Gong T, Guo J, Zhang X, Che S Abstract High-risk human papillomavirus (HPV), especially HPV16, correlates with cancerogenesis of human esophageal squamous cell carcinoma (ESCC) and we have reported that HPV16 related with a poor prognosis of ESCC patients in China. We aim to investigate the potential role and mechanism of HPV16 in ESCC development and progress. Our following researches demonstrated that ESCC cells which were stably transfected by HPV16 E6-E7 lentiviral vector showed a remarkable cancer stem-like cells (CSCs) phenotype, such as: migr...
Source: Oncotarget - August 6, 2016 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

MicroRNA-363 targets myosin 1B to reduce cellular migration in head and neck cancer
Conclusions: These findings demonstrate that the overexpression of miR-363 reduces cellular migration in head and neck cancer and reveal the biological relationship between miR-363, myosin 1b, and HPV-positive SCCHN.
Source: BMC Cancer - November 6, 2015 Category: Cancer & Oncology Authors: Bhavana ChapmanAbigail WaldParvez AkhtarAna MunkoJingjing XuSandra GibsonJennifer GrandisRobert FerrisSaleem Khan Source Type: research

Abstract 813: Human papillomavirus 16 oncoprotein E6 upregulates c-Met partially through p53 in squamous cell carcinoma of the head and neck
Conclusion: Our results show that c-Met expression is upregulated by HPV E6, which is partially mediated by p53. The data suggest that targeting c-Met may serve as a novel approach for treating HPV-associated OPSCC.(This study was supported by grants from Small Business Innovation Research (SBIR) Program (HHSN261201200097C), National Institutes of Health (R33 CA161873), and National Cancer Institute (NCI P50 CA 128613, Head and Neck SPORE).Citation Format: Guoqing Qian, Dongsheng Wang, Kelly R. Magliocca, Praveen Duggal, Sreenivas Nannapaneni, Sungjin Kim, Zhengjia Chen, Dong M. Shin, Nabil F. Saba, Zhuo G. Chen. Human pap...
Source: Cancer Research - August 2, 2015 Category: Cancer & Oncology Authors: Qian, G., Wang, D., Magliocca, K. R., Duggal, P., Nannapaneni, S., Kim, S., Chen, Z., Shin, D. M., Saba, N. F., Chen, Z. G. Tags: Carcinogenesis Source Type: research

The role of globular heads of the C1q receptor in HPV 16 E2-induced human cervical squamous carcinoma cell apoptosis is associated with p38 MAPK/JNK activation
Conclusion: These data support a mechanism whereby HPV 16 E2 induces apoptosis by silencing the gC1qR gene or inhibiting p38 MAPK/JNK signalling in cervical squamous cell carcinoma.
Source: Journal of Translational Medicine - May 8, 2013 Category: Research Authors: Ling-juan GaoPing-qing GuWei ZhaoWen-yan DingXue-qing ZhaoShu-yu GuoTian-ying Zhong Source Type: research

Gene silencing with siRNA targeting E6/E7 as a therapeutic intervention against head and neck cancer-containing HPV16 cell lines.
Conclusion: Our results indicate that siRNA E6 and/or E7 may have potential as a gene-specific therapy for human papillomavirus (HPV) type 16 (HPV16)-related squamous cell carcinoma of the head and neck (HNSCC). Objectives: To evaluate the effectiveness of siRNA targeting E6 and/or E7 on the in vitro and in vivo growth suppression of HPV16-related HNSCC. Methods: HPV16-related HNSCC (UM-SCC47) cell lines were used for the present study. Expression of HPV viral oncogenes E6 and/or E7 and their cellular targets, p53 and pRb, was evaluated by real-time PCR, Western blotting, and immunofluorescence staining. To study the effec...
Source: Acta Oto-Laryngologica - May 3, 2013 Category: ENT & OMF Authors: Adhim Z, Otsuki N, Kitamoto J, Morishita N, Kawabata M, Shirakawa T, Nibu KI Tags: Acta Otolaryngol Source Type: research