Guest guest Posted July 16, 2011 Report Share Posted July 16, 2011 Reference: *Infectious XMLV in Human Cultures from Mouse Xenografts* - Help ME circle, 9 July 2011 - Co-Cure: http://bit.ly/ncSEon ~jvr ```` http://bit.ly/nCVJUH Age of Autism Daily Web Newspaper of the Autism Epidemic When Science Journals are Scarier than Science Fiction By Kent Heckenlively, Esq. My choice for the scariest reading of the year was recently published in the journal Cancer Biology and Therapy and has the unwieldly title of *Frequent Detection of Infectious Xenotropic Leukemia Virus (XMLV) in Human Cultures Established from Mouse Xenografts* (http://bit.ly/oONQ5N). For those of you who may be confused by the idea of a " xenograft " I'll provide you with the definition given by the U. S. Public Health Service: *Any procedure that involves the transplantation, implantation, or infusion into a human recipient of either (a) live cells, tissues, or organs from a non-human animal source or ( human body fluids, cells, tissues or organs that have had ex vivio contact with live non-human animal cells, tissues, or organs.* This covers vaccines as well as other surgical procedures in which human tissue is manipulated prior to transplantation. In the scientific community mouse xenografting is often used to manipulate cancer cells for research purposes, among other things. With research that has linked XMRV (which is a xenotropic murine leukemia virus) to prostate cancer, chronic fatigue syndrome/ME, and to a lesser extent autism, scientists from s Hopkins University and the University of Texas Southwestern Medical Center as well as a few other institutions thought it made sense to investigate the frequency of XMLVs in human cell lines *established from mouse xenografts and to search for the evidence of horizontal spread to other cell lines.* In layman's terms the question they were asking was, *when we do xenografting with mouse biological products how often do we get XMLVs popping up in our samples?* The answer they found is that six out of twenty three (26%) mouse DNA free xenografts *were strongly positive for MLV and their sequences had greater than 99% homology to known MLV strains.* These samples were obtained from seven independent laboratories. Further on the authors wrote: *Of the 78 non-xenograft derived cell lines maintained in the xenograft culture containing facilities, 13 (17%) were positive for MLV, including XMRV, a virus strain first identified in human tissues.* (My daughter with autism has tested positive for XMRV.) In scientific terms this is an absolute train wreck. This means that every surgical patient receiving any biological product which used mouse tissue in any way has a one in four chance of being exposed to an XMLV. And that also means that any biological sample which is maintained in a facility containing xenograft cultures has a 17% chance of becoming infected. On the question of vaccines, let's just say that only 10% of the nearly 40 vaccines children are expected to receive prior to the age of five contain mouse biological products. This translates into roughly a 100% chance that our current generation of children will be exposed to an XMLV through a vaccination. Are you scared yet? It gets worse. From the article is the following passage: *In one case XMRV virus infection to a non-xenograft colorectal carcinoma cell line RKO was demonstrated from an XMRV containing prostate xenograft derived cell line 221 Rv1 even though the two cell lines had been maintained in the same culture facility for only a few days.* The translation for a non-medical person is this: XMRV is highly infectious and spreads easily. How about this for scary? *Provirus integration into the genome is not random, and occurs preferentially at transcription start sites, CpG islands, DNase-hypersensitive sites and gene dense regions, suggesting that provirus integration may influence transcription in the host cell.* For those of you keeping score at home, the CpG islands are responsible for methylation. Is any of this starting to sound familiar? And the transcription start sites of genes? Pretty damned important. I know there are those who question the role of viruses in conditions like autism and state correctly that a well-functioning immune system will deal with any such pathogens. I agree. The problem is that we don't know the immune status of people in the population. For example, the discovery of XMRV itself was preceded by the finding that men with the most aggressive forms of prostate cancer had a deficiency in their RNasel gene, lowering the amount of an anti-viral defense enzyme their body produced. How widely is that RNasel mutation spread throughout the population? Do you know the RNasel status of your genes? Of your children? And that's just what we know about. And can toxic chemicals and heavy metals interfere with your body's immune system response to pathogens, regardless of your genetic make-up? You betcha. The closest example I can make is that of what happened to the native population in the Americas when Europeans crossed the ocean. A natural barrier was breached and the native population had no immunity to our pathogens. Some experts speculate that the diesases Europeans brough to the New World killed 90% of the native population. While we have shared the Earth with mice and other creatures from the dawn of history, we haven't been culturing their cells, then injecting those cells into our bloodstream. We have breached a natural barrier and we need to ask the question of what consequences have been wrought from this decision. In the conclusion the authors write: *Thus laboratories handling or culturing human xenografts should monitor for the presence of MLV, and should consider monitoring personnel for viral antigens or antibodies to them. Laboratories working with xenograft cultures should have full knowledge and understanding of the potential biological and biohazardous risks and should not distribute or publish their findings without full disclosure of the virus status of their xenograft-derived materials.* I've heard some commentators lament what it will take for the medical authorities to deal with this issue seriously. They've noted with the despair the finding of XMRV in men with prostate cancer, those with chronic fatigue syndrome/ME and children with autism and how it has failed to provoke action. They've said to me: " These people have no problem screwing over the old men, those with CFS/ME, and even the children. " With this recent finding regarding the dangers of XMLV and XMRV transmission in labs, the question becomes, *Will these same medical authorities screw the very people who work for them?* Kent Heckenlively is a Contributing Editor to Age of Autism Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 21, 2011 Report Share Posted July 21, 2011 I really appreciate you putting it in way that make it easier for me to understand. Thank you. I don't want to assume anything but would like to repost, may I? In a message dated 7/19/2011 6:17:13 P.M. Pacific Daylight Time, j.van.roijen@... writes: Reference: *Infectious XMLV in Human Cultures from Mouse Xenografts* - Help ME circle, 9 July 2011 - Co-Cure: _http://bit.ly/ncSEon_ (http://bit.ly/ncSEon) ~jvr ```` _http://bit.ly/nCVJUH_ (http://bit.ly/nCVJUH) Age of Autism Daily Web Newspaper of the Autism Epidemic When Science Journals are Scarier than Science Fiction By Kent Heckenlively, Esq. My choice for the scariest reading of the year was recently published in the journal Cancer Biology and Therapy and has the unwieldly title of *Frequent Detection of Infectious Xenotropic Leukemia Virus (XMLV) in Human Cultures Established from Mouse Xenografts* (_http://bit.ly/oONQ5N_ (http://bit.ly/oONQ5N) ). For those of you who may be confused by the idea of a " xenograft " I'll provide you with the definition given by the U. S. Public Health Service: *Any procedure that involves the transplantation, implantation, or infusion into a human recipient of either (a) live cells, tissues, or organs from a non-human animal source or ( human body fluids, cells, tissues or organs that have had ex vivio contact with live non-human animal cells, tissues, or organs.* This covers vaccines as well as other surgical procedures in which human tissue is manipulated prior to transplantation. In the scientific community mouse xenografting is often used to manipulate cancer cells for research purposes, among other things. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.