Elucidating Molecular Interactions of Ten Natural Compounds Targeting E6 HPV High Risk Oncoproteins Using Microsecond Molecular Dynamics Simulations.

CONCLUSIONS: Our results suggest that crocetin, ergosterol peroxide and κ-carrageenan natural products binds strongly to both HPV-16 and HPV-18 and could potentially serve as a scaffolding for further drug development. PMID: 31995016 [PubMed - as supplied by publisher]
Source: Medicinal Chemistry - Category: Chemistry Authors: Tags: Med Chem Source Type: research

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New evidence published in the Cochrane Library today provides further information on the benefits and harms of different human papillomavirus (HPV) vaccines and vaccine schedules in young women and men.HPV is the most common viral infection of the reproductive tract in both women and men globally (WHO 2017). Most people who have sexual contact will be exposed to HPV at some point in their life. In most people, their own immune system will clear the HPV infection.HPV infection can sometimes persist if the immune system does not clear the virus. Persistent infection with some ‘high-risk’ strains of HPV can lead t...
Source: Cochrane News and Events - Category: Information Technology Authors: Source Type: news
Santosh K. Ghosh1*, Thomas S. McCormick1,2 and Aaron Weinberg1* 1Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States 2Dermatology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States Human beta-defensins (hBDs, −1, 2, 3) are a family of epithelial cell derived antimicrobial peptides (AMPs) that protect mucosal membranes from microbial challenges. In addition to their antimicrobial activities, they possess other functions; e.g., cell activation, proliferation, regulation of cytokine/chemokine production, migration, diffe...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
ConclusionAccording to current evidence, combined testing for human papillomavirus andPAX1 methylation analysis represents an efficacious cervical cancer ‐screening protocol.
Source: Molecular Genetics & Genomic Medicine - Category: Genetics & Stem Cells Authors: Tags: REVIEW ARTICLE Source Type: research
Conclusions: Tumor regression can occur following treatment of an epithelial cancer with gene-engineered T cells. These findings support continued study of E7 T cells and possibly other types of gene-engineered T cells in epithelial cancers.DisclosuresAdhikary: Kite Pharma: Employment. Schweitzer: Kite Pharma: Employment. Astrow: Kite Pharma: Employment. Hinrichs: Kite Pharma: Research Funding; NIH: Patents &Royalties: NIH patents related to cell therapy.
Source: Blood - Category: Hematology Authors: Tags: 801. Gene Therapy and Transfer: Clinical Trials for Hemophilia and Using CAR T Cells Source Type: research
Infection with high oncogenic risk human papillomavirus types is the etiological factor of cervical cancer and a major cause of other epithelial malignancies, including vulvar, vaginal, anal, penile and head and neck carcinomas. These agents affect epithelial homeostasis through the expression of specific proteins that deregulate important cellular signaling pathways to achieve efficient viral replication. Among the major targets of viral proteins are components of the DNA damage detection and repair machinery. The activation of many of these cellular factors is critical to process viral genome replication intermediates an...
Source: Clinics - Category: General Medicine Source Type: research
This study evaluated the integration and methlyation of human papillomavirus type 16 (HPV16) in head and neck squamous cell carcinoma (HNSCC) and its oral precursor, high-grade oral epithelial dysplasia (hgOED). Archival samples of HPV16-positive hgOED (N = 19) and HNSCC (N = 15) were evaluated, along with three HNSCC (UMSCC-1, -47 and -104) and two cervical cancer (SiHa and CaSki) cell lines. HgOED cases were stratified into three groups with increasing degrees of cytologic changes (mitosis, karyorrhexis and apoptosis). The viral load was higher and the E2/E6 ratio lower (indicating a greater tendency toward viral integra...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
This study looks at a collection of studies looking at the benefit of HPV vaccines in reducing pre cervical cancer lesions.  HPV also causes many other serious cancers (especially head and neck).  In time, as more people have been vaccinated, we will see a reduction in all HPV cancers.  The HP V vaccine is one of a number of vaccines using virus like particles (VLPS) which have been shown to be very safe over the last 35 years. “The Cochrane library of reviews has a very rigorous assessment process of all their reviews. “The review only looked at cervical precancer (in women and girls),...
Source: Cochrane News and Events - Category: Information Technology Authors: Source Type: news
Human papillomavirus oncogenic E6 protein regulates human β-defensin 3 (hBD3) expression via the tumor suppressor protein p53. Oncotarget. 2016 Mar 28; Authors: DasGupta T, Nweze EI, Yue H, Wang L, Jin J, Ghosh SK, Kawsar HI, Zender C, Androphy EJ, Weinberg A, McCormick TS, Jin G Abstract Human β-defensin-3 (hBD3) is an epithelial cell-derived innate immune regulatory molecule overexpressed in oral dysplastic lesions and fosters a tumor-promoting microenvironment. Expression of hBD3 is induced by the epidermal growth factor receptor signaling pathway. Here we describe a novel pathway through ...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
Human papillomavirus type 16 (HPV16) causes a range of cancers including cervical and head and neck cancers. HPV E6 oncoprotein binds the cell polarity regulator hDlg (human homologue of Drosophila Discs Large). Previously we showed in vitro, and now in vivo, that hDlg also binds Connexin 43 (Cx43), a major component of gap junctions that mediate intercellular transfer of small molecules. In HPV16-positive non-tumour cervical epithelial cells (W12G) Cx43 localised to the plasma membrane, while in W12T tumour cells derived from these, it relocated with hDlg into the cytoplasm. We now provide evidence that E6 regulates this ...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
CONCLUSIONS: The maternal and neonatal HPV colonization mechanism is essentially, but not exclusively, transvaginal. PMID: 26275464 [PubMed - as supplied by publisher]
Source: Acta Otorrinolaringologica Espanola - Category: ENT & OMF Authors: Tags: Acta Otorrinolaringol Esp Source Type: research
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