Results 111 to 120 of about 47,513 (307)

Carcinoma gástrico e gastrite crónica: regulação epigenética por metilação dos genes CDH1 (Caderina-E), CDKN2A (p16INK4A), PTGS2 (COX2) e EGFR.

open access: yesActa Médica Portuguesa, 2010
The genetic and epigenetic alterations are being studied as one of the causes of gastric cancer (GC) progression and development. DNA methylation is an epigenetic alteration which leads to suppressor gene silencing and proto-oncogene activation, playing ...
Maria Silva   +7 more
doaj   +1 more source

Cloning and characterization of murine p16(INK4a) and p15(INK4b) genes

open access: yes, 1995
Progression through the G1 phase of the cell cycle is regulated in part by the D-type cyclin-dependent kinases, cdk4 and cdk6. Genes encoding two specific inhibitors of these kinases, human p16((INK4a/MTS1)) and p15((INK4b/MTS2)) map to a region of ...
Quelle, D. E.   +9 more
core  

Multi-gene epigenetic silencing of tumor suppressor genes in T-cell lymphoma cells; delayed expression of the p16 protein upon reversal of the silencing

open access: yes, 2006
Udgivelsesdato: 2006-MarTo understand better T-cell lymphomagenesis, we examined promoter CpG methylation and mRNA expression of closely related genes encoding p16, p15, and p14 tumor suppressor genes in cultured malignant T-cells that were derived from ...
Nagasawa, T   +11 more
core   +1 more source

Elaborating the Motivations and Attitudes Driving Interest in Voluntary Biodiversity Credits

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Global biodiversity loss has prompted the search for new sources of conservation finance, such as voluntary biodiversity credits (VBCs). However, despite optimistic market projections, current uptake of VBCs is limited. Adopting an interpretive approach, we analyse 21 semistructured interviews with early market actors (buyers, sellers ...
Gamze Yakar‐Pritchard   +5 more
wiley   +1 more source

Promoter methylation of p16, Runx3, DAPK and CHFR genes is frequent in gastric carcinoma

open access: yes, 2010
Aims and background Transcriptional silencing induced by hypermethylation of CpG islands in the promoter regions of genes is believed to be an important mechanism of carcinogenesis in human cancers including gastric cancer.
Yu-Bei Sun   +9 more
core   +1 more source

KRAS, BRAF oncogene mutations and tissue specific promoter hypermethylation of tumor suppressor SFRP2, DAPK1, MGMT, HIC1 and p16 genes in colorectal cancer patients [PDF]

open access: yes, 2016
BACKGROUND: Colorectal cancer is a serious disease that causes significant morbidity and mortality in developed countries. Genetic changes, such as mutations in proto-oncogenes and DNA repair genes, and loss of function in the tumor suppressor genes ...
Sari, Musa   +5 more
core   +1 more source

A Survival Epidemiology Framework for Oral and Oropharyngeal Cancer

open access: yesCancer Nexus, EarlyView.
ABSTRACT Oral and oropharyngeal cancer remains a major global public health burden, but the literature addressing this disease is still organized predominantly around who develops it rather than around what determines life after diagnosis. That imbalance is consequential because diagnosis initiates a new scientific problem.
Raphael E. Cuomo
wiley   +1 more source

Antitumour effects of artesunate via cell cycle checkpoint controls in human oesophageal squamous carcinoma cells

open access: yesEuropean Journal of Medical Research
Artesunate (ART), an effective antimalarial semisynthetic derivative of artemisinin, exhibits antitumour properties, but the mechanism(s) involved remain elusive.
Linlin Mao   +5 more
doaj   +1 more source

Helicobacter pylori Eradication Modulates Aberrant CpG Island Hypermethylation in Gastric Carcinogenesis

open access: yesThe Korean Journal of Gastroenterology, 2016
Background : /Aims: Helicobacter pylori infection induces aberrant DNA methylation in gastric mucosa. We evaluated the long-term effect of H. pylori eradication on promotor CpG island hypermethylation in gastric carcinogenesis. Methods : : H.
Jeongmin Choi   +5 more
doaj   +1 more source

MultNAT HPV16/18 Assay: A Simple, Rapid, and Low‐Cost Polymerase Chain Reaction Method for the Detection of HPV16 and HPV18 Suitable for Point‐of‐Care Testing

open access: yesCancer Nexus, EarlyView.
ABSTRACT Aim Persistent high‐risk HPV infection can lead to the development of precancerous lesions, potentially progressing to invasive cancer. HPV status serves not only as a prognostic marker for squamous cell carcinoma (HNSCC) like oropharyngeal squamous cell carcinomas (OPSCC) but also significantly influences clinical management and treatment ...
Min Wang   +9 more
wiley   +1 more source

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