نتایج جستجو برای: e7

تعداد نتایج: 3670  

Journal: :Microorganisms 2023

Cervical cancer is associated with persistent infections by high-risk Human Papillomavirus (HPV) types that may have nucleotide polymorphisms and, consequently, different oncogenic potentials. Therefore, this study aimed to evaluate the genetic variability and structural effects of E7 oncogene HPV58 in cervical scraping samples from Brazilian women. The was developed patients hospitals metropol...

Journal: :Journal of the National Cancer Institute 2004
Koji Matsumoto Graham R Leggatt Jie Zhong Xiaosong Liu Rachel L de Kluyver Tania Peters Germain J P Fernando Amy Liem Paul F Lambert Ian H Frazer

BACKGROUND Although immunization with tumor antigens can eliminate many transplantable tumors in animal models, immune effector mechanisms associated with successful immunotherapy of epithelial cancers remain undefined. METHODS Skin from transgenic mice expressing the cervical cancer-associated tumor antigen human papillomavirus type 16 (HPV16) E6 or E7 proteins from a keratin 14 promoter was...

Journal: :Journal of virology 2009
Susan A Heilman Joshua J Nordberg Yingwang Liu Greenfield Sluder Jason J Chen

High-risk types of human papillomavirus (HPV) are considered the major causative agents of cervical carcinoma. The transforming ability of HPV resides in the E6 and E7 oncogenes, yet the pathway to transformation is not well understood. Cells expressing the oncogene E7 from high-risk HPVs have a high incidence of polyploidy, which has been shown to occur as an early event in cervical carcinogen...

Journal: :Cancer research 1998
M L De Bruijn D H Schuurhuis M P Vierboom H Vermeulen K A de Cock M E Ooms M E Ressing M Toebes K L Franken J W Drijfhout T H Ottenhoff R Offringa C J Melief

Human papillomavirus (HPV) E6 and E7 oncoproteins are attractive targets for T-cell-based immunotherapy of cervical cancer. In this study, we demonstrate that dendritic cells (DCs) pulsed with HPV16 E7 protein are not only recognized in vitro by E7-specific CTLs but also elicit E7-specific CTL responses in vivo, associated with protection against a challenge with syngeneic HPV16-induced tumor c...

2017
Sunghoon Kim Hye Won Chung Hoon Young Kong Jong-Baeck Lim

PURPOSE To identify new immunogenic HLA-A*33;03-restricted epitopes from the human papillomavirus (HPV) 16 E7 protein for immunotherapy against cervical cancer. MATERIALS AND METHODS We synthesized fourteen overlapping 15-amino acid peptides and measured intracellular interferon-γ (IFN-γ) production in PBMC and CD8+ cytotoxic T lymphocytes (CTLs) after sensitization with these peptides using ...

Journal: : 2021

Tavuk koryoallantoik membran (CAM) modeli, anjiyogenez çal??malar?nda geli?imsel süreçleri takip etmek için yayg?n olarak kullan?lan bir modeldir. Bu çal??mada, CAM kullan?larak, embriyonik geli?imin 7. ve 20. günleri (E7 E20) aras?nda görülen süreci ???k transmisyon elektron mikroskop analizleri ile edilmi?tir. Ayr?ca, ayn? günlerde al?nan örnekleri meka-nizmalar?nda görevli [Vasküler Endotely...

Journal: :Carcinogenesis 1998
X F Pei L Sherman Y H Sun R Schlegel

The E6 and E7 genes of HPV-16 or HPV-18 both are necessary for effective immortalization of primary human genital keratinocytes. To analyse the individual role of E6 and E7 genes in dysregulating cell growth, we cloned the HPV-16 E6, E7 and E6/E7 genes into retroviruses. Primary human keratinocytes (PHK) were then infected with these retroviruses and selected in differentiation-inducing medium ...

2006
Scott Balsitis Fred Dick Nicholas Dyson Paul F. Lambert

High-risk human papillomaviruses (HPV) encode two oncogenes, E6 and E7, expressed in nearly all cervical cancers. In vivo , HPV-16 E7 has been shown to induce multiple phenotypes in the context of transgenic mice, including cervical cancer. E7 is a multifunctional protein known best for its ability to inactivate the tumor suppressor pRb. To determine the importance of pRb inactivation by E7 in ...

2009
Anna M. Mileo Claudia Abbruzzese Stefano Mattarocci Emanuele Bellacchio Paola Pisano Antonio Federico Vittoria Maresca Mauro Picardo Alessandra Giorgi Bruno Maras M. Eugenia Schininà Marco G. Paggi

BACKGROUND Human Papillomavirus (HPV)-16 is a paradigm for "high-risk" HPVs, the causative agents of virtually all cervical carcinomas. HPV E6 and E7 viral genes are usually expressed in these tumors, suggesting key roles for their gene products, the E6 and E7 oncoproteins, in inducing malignant transformation. METHODOLOGY/PRINCIPAL FINDINGS By protein-protein interaction analysis, using mass...

2011
Joanna Laurson Kenneth Raj

E7 is one of the best studied proteins of human papillomavirus type 16, largely because of its oncogenic potential linked to cervical cancer. Yet the sub-cellular location of E7 remains confounding, even though it has been shown to be able to shuttle between the nucleus and the cytoplasm. Here we show with immunocytochemistry that E7 proteins are located in the nucleus and cytoplasm in sub-conf...

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