How Ovarian Tumors Evade Immune System Science Daily (press release) - Known as NKTs for short, these special T cells must be activated to do their job of jump-starting the immune response and signaling other kinds of white ...
Researchers find how ovarian tumor affects immune system Baltimore Examiner, MD - The cancer tumors shut down these T cells, which are critical for an immune response, said Dr. Jonathan Schneck, co-investigator of a study being published ...
Key To Keeping Killer T Cells In Prime Shape For Fighting ... Science Daily (press release) - Chronic over-stimulation of the immune system can lead to poor control of infections and cancer, so the results explain why it is that these key immune...
Celebrating 20th anniversary of World Aids Day IPPmedia, United Republic of Tanzania - According to UNAIDS information, HIV is a virus that infects the Human Immune System and destroys or impairs their functions. The virus is very active and ...
Cell Receptor Identified As Target For Anti-inflammatory Immune... Science Daily (press release) - Nov 29, 2008 ... studied mechanisms evolved by the immune system to avoid these accidents by shutting off the immune response once the invaders have been eliminated. ...
Towards improved immunotherapy EurekAlert (press release), DC - Immunotherapy refers to a collection of treatments based upon the concept of modulating the immune system to achieve a prophylactic and/or therapeutic goal. ...
UW System suggests cuts in lieu of budget deficit UW Badger Herald, WI - Our university is not immune from that pressure.? Board of Regents Vice President Chuck Pruitt said he supports Reilly?s actions, adding a proactive state ...
FAQs and answers on AIDS MyNews.in, India - Over time, infection with HIV (Human Immunodeficiency Virus) can weaken the immune system to the point that the system has difficulty fighting off certain ...
AIDS denial condemns S. Africans to avoidable death ABC Science Online, Australia - Aug 4, 2008 But on the other hand, the virus is slowly and surreptitiously overwhelming the person's immune system. For the vast majority of people, this period lasts ...
Herbal Topical Gels for Genital Warts Best Syndication, CA - Holistic medical practitioners claim that these herbal topical gels can improve our immune system. As a consequence, many skin conditions can be treated ...
Rooney Down As United Rue Africa Trip Goal.com, Switzerland - Aug 6, 2008 Thats not to say Nigeria is a dump, it just means that Rooneys came in contact with something HIS immune system wasn't able to handle. Stop being so silly, ...
HIV Expert Says 1 Step Down, 2 More To Go In Quest To Cure AIDS Science Daily (press release) - Indeed, it was Siliciano's team at Hopkins in 1995 that confirmed the existence of these reservoirs in immune system CD4 memory T-cells - those left behind, ...
Viral Subversion of the Immune System - D Tortorella, BE Gewurz, MH Furman, DJ Schust, HL … - Annual Reviews in Immunology, 2000 - Annual Reviews ...Viral Subversion of the ImmuneSystem. Domenico Tortorella 1 ? Benjamin E. Gewurz
1 ? Margo H. Furman 1 ? Danny J. Schust 1 and ? Hidde L. Ploegh 1 ? ...
Epstein-Barr virus: exploiting the immune system. DA Thorley-Lawson - Nat Rev Immunol, 2001 - ncbi.nlm.nih.gov Nat Rev Immunol. 2001 Oct;1(1):75-82. Click here to read Epstein-Barr virus:
exploiting the immunesystem. Thorley-Lawson DA. Department ...
[PDF]CD95's deadly mission in the immune system - PH Krammer - Nature, 2000 - uwcvb.org ... one such family member and has a significant role in the immunesystem and outside ...
so-called cytotoxic T lym- phocytes) remove, for example, virus-infected cells ... -
MODELLING VIRAL AND IMMUNE SYSTEM DYNAMICS - AS Perelson - Nature Reviews Immunology, 2002 - engg.upd.edu.ph ... hepatitis B virus (HBV),cytomegalovirus (CMV) and lymphocytic choriomeningitis virus
(LCMV) dynamics and interactions with the immunesystem,highlighting the ...
Superantigens: Bacterial and Viral Proteins that Manipulate the Immune System - MT Scherer, L Ignatowicz, GM Winslow, JW Kappler, … - Annual Reviews in Cell Biology, 1993 - Annual Reviews ... of the invading organism, and it is often suggested that the immunesystem has
developed ... by B cells and antibodies by mutation of the major viral coat proteins ...
RNA Silencing: The Genome's Immune System - RHA Plasterk - Science, 2002 - sciencemag.org ... and very likely acts as the "immunesystem" of the ... This system was initially
independently discovered and studied ... as well as RNA-mediated virus resistance in ...
[BOOK]Virus Dynamics: Mathematical Principles of Immunology and Virology - M Nowak, MA Nowak - 2001 - nature.com ... Now, try some realpolitik: HIV invading the immunesystem with antigen-specific immune responses kicking in within days, the virus preying on the very T helper ...
Source: Google Scholar
Immune system response to viral DNA is unique
The human body has a unique immune system response to foreign DNA, suggesting that DNA viruses and RNA viruses are detected by different mechanisms.
Yale School of Medicine researchers also found that DNA recognition might be used to detect invasive bacteria in addition to viruses, according to Daniel Stetson, lead author of the study.
Although there are countless types of viruses, they can all be placed in two categories based on the type of nucleic acids that comprise their genome: viruses made of RNA and viruses made of DNA. Infected cells sense the presence of foreign nucleic acids as viruses replicate inside them and distill the problem of recognizing a dizzying array of viruses into a relatively simple mechanism for turning on the immune response.
" It is well established that such a pathway exists for detection of viral RNA inside infected cells," Stetson said. " In contrast, very little is known about whether cells can detect foreign intracellular DNA or how this system might function."
Stetson and Ruslan Medshitov, a Howard Hughes Institute investigator, and senior author of the study, compared the innate immune response to intracellular DNA with other virus recognition pathways.
" We found that this novel pathway seems to function differently from all other known nucleic acid sensors," Stetson said. " The unique immune response activated by foreign DNA suggests that DNA viruses and RNA viruses are detected by different mechanisms."
Stetson said one important question raised by these findings is how this newly described system avoids responding to genomic DNA that is contained within all cells.
" If this 'tolerance' to self DNA were to break down, cells might mount an antiviral response against their own DNA," he said. " Further characterization of this pathway will shed light on the mechanisms of antiviral responses and how cells discern viral and self-DNA."
