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Category Archives: Gene therapy
Novel gene therapy enables persistent anti-tumor immune response
Posted: October 9, 2013 at 12:44 pm
Public release date: 9-Oct-2013 [ | E-mail | Share ]
Contact: Vicki Cohn vcohn@liebertpub.com 914-740-2100 x2156 Mary Ann Liebert, Inc./Genetic Engineering News
New Rochelle, NY, October 9, 2013Cancer immunotherapy can successfully use the body's own immune system to kill tumor cells. But some current approaches to stimulate an antitumor immune response are short-lived, with limited clinical effectiveness. A new gene transfer strategy that introduces modified, immune-stimulating human stem cells is both feasible and effective for achieving persistent immunotherapy to treat leukemias and lymophomas, according to a study published in Human Gene Therapy, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available on the Human Gene Therapy website.
Satiro Nakamura De Oliveira and coauthors from the David Geffen School of Medicine, University of California, Los Angeles and University of Texas MD Anderson Cancer Center, Houston, describe the gene transfer method they developed to deliver chimeric antigen receptors, or CARS, that direct the immune system to target tumor cells derived from B-lymphocytes.
In the article "Modification of Hematopoietic Stem/Progenitor Cells with CD19-specific Chimeric Antigen Receptors as a Novel Approach for Cancer Immunotherapy" the authors show that by packaging the CARS in human hematopoietic stem cells, the immunotherapeutic receptors will be produced in the bloodstream for a long period of time. This persistent expression should improve their effectiveness in the treatment of blood cancers such as leukemia and lymphoma.
"This study represents an interesting new direction for an approach that has generated substantial interest," says Dr. Wilson, Director of the Gene Therapy Program, Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia.
###
About the Journal
Human Gene Therapy, the official journal of the European Society of Gene and Cell Therapy, British Society for Gene and Cell Therapy, French Society of Cell and Gene Therapy, German Society of Gene Therapy, and five other gene therapy societies, is an authoritative peer-reviewed journal published monthly in print and online. Human Gene Therapy presents reports on the transfer and expression of genes in mammals, including humans. Related topics include improvements in vector development, delivery systems, and animal models, particularly in the areas of cancer, heart disease, viral disease, genetic disease, and neurological disease, as well as ethical, legal, and regulatory issues related to the gene transfer in humans. Its sister journal, Human Gene Therapy Methods, published bimonthly, focuses on the application of gene therapy to product testing and development, and Human Gene Therapy Clinical Development, new in 2013, publishes data relevant to the regulatory review and commercial development of cell and gene therapy products. Complete tables of content for all three publications and a free sample issue may be viewed on the Human Gene Therapy website.
About the Publisher
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Novel gene therapy enables persistent anti-tumor immune response
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Newborns Could Soon Be Screened for Rare Pompe Enzyme Deficiency Disorder
Posted: September 1, 2013 at 2:54 am
Shortly after a baby’s first wail at birth she or he receives a tiny prick on the heel. A few drops of blood are caught on special filter paper to screen for myriad diseases. [More]
-- Read more on ScientificAmerican.com
Source:
http://rss.sciam.com/~r/sciam/topic/gene-therapy/~3/qJICV6zfIAo/article.cfm
Posted in Gene therapy
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Four UCLA stem cell researchers receive CIRM Early Translational grants
Posted: September 1, 2013 at 2:54 am
Four researchers from UCLA’s Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research have received Early Translational Research Awards totaling approximately $13 million from the California Institute for Regenerative Medicine, the state's stem cell agency. The UCLA researchers received four of the 12 total awards; no other institution received more than one.
The Independent Citizens Oversight Committee, CIRM’s governing body, announced at its Aug. 28 meeting in La Jolla, Calif., that grant recipients included Dr. Jerome Zack, professor of medicine and microbiology, immunology and molecular genetics; Dr. Robert Reiter, Bing Professor of Urologic Research; Dr. Donald Kohn, professor of pediatrics and microbiology, immunology and molecular genetics in th...
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Four UCLA stem cell researchers receive CIRM Early Translational grants
Posted: August 30, 2013 at 4:07 pm
Four researchers from UCLA’s Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research have received Early Translational Research Awards totaling approximately $13 million from the California Institute for Regenerative Medicine, the state's stem cell agency. The UCLA researchers received four of the 12 total awards; no other institution received more than one.
The Independent Citizens Oversight Committee, CIRM’s governing body, announced at its Aug. 28 meeting in La Jolla, Calif., that grant recipients included Dr. Jerome Zack, professor of medicine and microbiology, immunology and molecular genetics; Dr. Robert Reiter, Bing Professor of Urologic Research; Dr. Donald Kohn, professor of pediatrics and microbiology, immunology and molecular genetics in th...
MedWorm Sponsor Message: Find the best Christmas presents and January Sales in the UK with this simple shopping directory.
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Scientists use gene therapy to repair muscles damaged in heart attacks
Posted: August 23, 2013 at 7:44 pm
Scientists have come a step closer to being able to repair the damage done by heart attacks, using a cocktail of genes to transform scar tissue into working heart muscles.
Novel techniques to mend broken hearts using gene therapy and stem cells represent a major new frontier in the treatment of heart disease.
In the latest breakthrough, achieved by researchers at the Gladstone Institute of Cardiovascular Disease in California, researchers were able to re-programme scar-forming cells into heart muscle cells, some of which were capable of transmitting the kind of electrical signals that make the heart beat, according to the latest issue of the Stem Cell Reports journal.
The same team demonstrated their technique last year in live mice, transforming scar-forming cells, called fibroblasts, into beating heart muscle cells, but this is the first time that human fibroblasts have been re-programmed in this way.
So far, the work with human fibroblasts has only been done in the lab, but it paves the way for new treatments for heart attack victims. Researchers said that the cocktail of genes used to regenerate cells could one day be replaced with small drug-like molecules that would offer safer and easier delivery.
We've now laid a solid foundation for developing a way to reverse the damage [done by a heart attack] something previously thought impossible and changing the way that doctors may treat heart attacks in the future, said Dr Deepak Srivastava, director of cardiovascular disease at the Gladstone Institutes. Our findings here serve as a proof of concept that human fibroblasts can be re-programmed successfully into beating heart cells.
In 2012, Dr Srivastava and his team reported in the journal Nature that, by injecting three genes into the hearts of live mice that had been damaged by heart attack, fibroblasts could be turned into working heart cells.
The scientists attempted the same technique using human fibroblasts from foetal heart cells, embryonic stem cells and neonatal skin cells, injected with genes in petri dishes in the lab. An increased number of genes was required to transform the human cells, and the efficiency of the transformed cells was low, but the team were encouraged by the results.
While almost all the cells in our study exhibited at least a partial transformation, about 20 per cent of them were capable of transmitting electrical signals a key feature of beating hearts, said Gladstone staff scientist Ji-dong Fu, the studys lead author.
The number of people who survive heart attacks has increased considerably in recent decades. The British Heart Foundation (BHF) said earlier this year that 70 per cent of women and 68 per cent of men were now surviving. However, success in keeping people alive after a heart attack has led to a rise in the number of people suffering from the long-term after-effects, which include debilitating heart failure.
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Scientists use gene therapy to repair muscles damaged in heart attacks
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Scientists come closer to 'mending broken hearts' by using gene therapy to repair muscles damaged in heart attacks
Posted: August 22, 2013 at 4:42 pm
Scientists have come a step closer to being able to repair the damage done by heart attacks, using a cocktail of genes to transform scar tissue into working heart muscles.
Novel techniques to mend broken hearts using gene therapy and stem cells represent a major new frontier in the treatment of heart disease.
In the latest breakthrough, achieved by researchers at the Gladstone Institute of Cardiovascular Disease in California, researchers were able to re-programme scar-forming cells into heart muscle cells, some of which were capable of transmitting the kind of electrical signals that make the heart beat, according to the latest issue of the Stem Cell Reports journal.
The same team demonstrated their technique last year in live mice, transforming scar-forming cells, called fibroblasts, into beating heart muscle cells, but this is the first time that human fibroblasts have been re-programmed in this way.
So far, the work with human fibroblasts has only been done in the lab, but it paves the way for new treatments for heart attack victims. Researchers said that the cocktail of genes used to regenerate cells could one day be replaced with small drug-like molecules that would offer safer and easier delivery.
We've now laid a solid foundation for developing a way to reverse the damage [done by a heart attack] something previously thought impossible and changing the way that doctors may treat heart attacks in the future, said Dr Deepak Srivastava, director of cardiovascular disease at the Gladstone Institutes. Our findings here serve as a proof of concept that human fibroblasts can be re-programmed successfully into beating heart cells.
In 2012, Dr Srivastava and his team reported in the journal Nature that, by injecting three genes into the hearts of live mice that had been damaged by heart attack, fibroblasts could be turned into working heart cells.
The scientists attempted the same technique using human fibroblasts from foetal heart cells, embryonic stem cells and neonatal skin cells, injected with genes in petri dishes in the lab. An increased number of genes was required to transform the human cells, and the efficiency of the transformed cells was low, but the team were encouraged by the results.
While almost all the cells in our study exhibited at least a partial transformation, about 20 per cent of them were capable of transmitting electrical signals a key feature of beating hearts, said Gladstone staff scientist Ji-dong Fu, the studys lead author.
The number of people who survive heart attacks has increased considerably in recent decades. The British Heart Foundation (BHF) said earlier this year that 70 per cent of women and 68 per cent of men were now surviving. However, success in keeping people alive after a heart attack has led to a rise in the number of people suffering from the long-term after-effects, which include debilitating heart failure.
Posted in Gene therapy
Comments Off on Scientists come closer to 'mending broken hearts' by using gene therapy to repair muscles damaged in heart attacks
Scientists come closer to ‘mending broken hearts’ by using gene therapy to repair muscles damaged in heart attacks
Posted: August 22, 2013 at 4:42 pm
Scientists have come a step closer to being able to repair the damage done by heart attacks, using a cocktail of genes to transform scar tissue into working heart muscles.
Novel techniques to mend broken hearts using gene therapy and stem cells represent a major new frontier in the treatment of heart disease.
In the latest breakthrough, achieved by researchers at the Gladstone Institute of Cardiovascular Disease in California, researchers were able to re-programme scar-forming cells into heart muscle cells, some of which were capable of transmitting the kind of electrical signals that make the heart beat, according to the latest issue of the Stem Cell Reports journal.
The same team demonstrated their technique last year in live mice, transforming scar-forming cells, called fibroblasts, into beating heart muscle cells, but this is the first time that human fibroblasts have been re-programmed in this way.
So far, the work with human fibroblasts has only been done in the lab, but it paves the way for new treatments for heart attack victims. Researchers said that the cocktail of genes used to regenerate cells could one day be replaced with small drug-like molecules that would offer safer and easier delivery.
We've now laid a solid foundation for developing a way to reverse the damage [done by a heart attack] something previously thought impossible and changing the way that doctors may treat heart attacks in the future, said Dr Deepak Srivastava, director of cardiovascular disease at the Gladstone Institutes. Our findings here serve as a proof of concept that human fibroblasts can be re-programmed successfully into beating heart cells.
In 2012, Dr Srivastava and his team reported in the journal Nature that, by injecting three genes into the hearts of live mice that had been damaged by heart attack, fibroblasts could be turned into working heart cells.
The scientists attempted the same technique using human fibroblasts from foetal heart cells, embryonic stem cells and neonatal skin cells, injected with genes in petri dishes in the lab. An increased number of genes was required to transform the human cells, and the efficiency of the transformed cells was low, but the team were encouraged by the results.
While almost all the cells in our study exhibited at least a partial transformation, about 20 per cent of them were capable of transmitting electrical signals a key feature of beating hearts, said Gladstone staff scientist Ji-dong Fu, the studys lead author.
The number of people who survive heart attacks has increased considerably in recent decades. The British Heart Foundation (BHF) said earlier this year that 70 per cent of women and 68 per cent of men were now surviving. However, success in keeping people alive after a heart attack has led to a rise in the number of people suffering from the long-term after-effects, which include debilitating heart failure.
Posted in Gene therapy
Comments Off on Scientists come closer to ‘mending broken hearts’ by using gene therapy to repair muscles damaged in heart attacks
Newborns Could Soon Be Screened for Rare Pompe Enzyme Deficiency Disorder
Posted: August 19, 2013 at 9:00 am
Shortly after a baby’s first wail at birth she or he receives a tiny prick on the heel. A few drops of blood are caught on special filter paper to screen for myriad diseases. [More]
-- Read more on ScientificAmerican.com
Source:
http://rss.sciam.com/~r/sciam/topic/gene-therapy/~3/qJICV6zfIAo/article.cfm
Posted in Gene therapy
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Unhidden Traits: Genomic Data Privacy Debates Heat Up
Posted: August 18, 2013 at 3:02 am
Earlier this year Yaniv Erlich of the Whitehead Institute for Biomedical Research at M.I.T. sent bioethicists into a frenzy when he and his team uncovered the names of people whose anonymous genome...
-- Read more on ScientificAmerican.com
Source:
http://rss.sciam.com/~r/sciam/topic/gene-therapy/~3/c3dvzwuFAUI/article.cfm
Posted in Gene therapy
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Stem Cell and Gene Therapy for CV Disease: Lessons learned and future directions – Video
Posted: August 15, 2013 at 5:46 pm
Stem Cell and Gene Therapy for CV Disease: Lessons learned and future directions
Les Miller, MD Director of the USF Heart Institute Professor of Cardiovascular Sciences at the USF Health Morsani College of Medicine Cardiology Grand Rounds...
By: DukeClinicalResearch
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Stem Cell and Gene Therapy for CV Disease: Lessons learned and future directions - Video
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