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Biological role of the tumor suppres...

El-Kalla, Mohamed.

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Biological role of the tumor suppressor protein, RASSF1A in inflammation and cancer.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Biological role of the tumor suppressor protein, RASSF1A in inflammation and cancer./
作者:	El-Kalla, Mohamed.
面頁冊數:	139 p.
附註:	Source: Masters Abstracts International, Volume: 48-04, page: 2217.
Contained By:	Masters Abstracts International48-04.
標題:	Health Sciences, Immunology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR56639
ISBN:	9780494566398

Biological role of the tumor suppressor protein, RASSF1A in inflammation and cancer.
El-Kalla, Mohamed.

Biological role of the tumor suppressor protein, RASSF1A in inflammation and cancer. - 139 p.

Source: Masters Abstracts International, Volume: 48-04, page: 2217.

Thesis (M.Sc.)--University of Alberta (Canada), 2010.

Inflammatory bowel disease (IBD) such as Crohn's disease (CD) and ulcerative colitis (UC) are chronic intestinal diseases characterized by inflammation of the gastrointestinal area resulting in abdominal pain, chronic diarrhoea, and weight loss. IBD affects 1 in 1000 individuals and between 10% and 15% of CD patients are children (with northern Alberta having one of the highest rates of CD in the world). Molecularly, it is characterized by hyperactivation of the transcription factor, nuclear factor kappa B (NFkappaB), and elevated production of pro-inflammatory cytokines. RASSF1A is a tumor suppressor protein required for death receptor dependent cell death (apoptosis) originating from the tumor necrosis factor alpha (TNFalpha) receptor (TNF-R1). It is one of the most methylated genes identified in human cancers and one of the earliest detectable loss in cancer. Loss of RASSF1A expression arises by methylation of the promoter for exon 1Aalpha (encoding the N-terminal 119 amino acids) without epigenetic loss of the other isoforms of RASSF1, suggesting selective pressure to silence isoform RASSF1A. We have defined apoptotic regulation by RASSF1A involving death receptors (such as TNF-R1) and its downstream target modulator of apoptosis, MOAP-1. We now define a novel role for RASSF1A in modulating innate immunity. Rassf1a-/- mice rapidly become sick following challenge with LPS or dextran sulphate in comparison to wild type animals and cytokine analysis of the peripheral blood reveal an elevated production of NFkappaB regulated cytokines (IL-6, IL-12, IL-8 and IL-10) Rassf1a-/- mice when compared to wild type animals. We propose that RASSF1A is an emerging novel negative regulator of inflammation and maybe a new susceptibility gene for inflammatory diseases.

ISBN: 9780494566398Subjects--Topical Terms:

1017716
Health Sciences, Immunology.

Biological role of the tumor suppressor protein, RASSF1A in inflammation and cancer.
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