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Therapy: Gene Therapy
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Total 474 results found since Jan 2013.
Senolytic Drugs Fail to Kill Cancerous Cells with Senescent Gene Expression Signatures, but a Gene Therapy Succeeds
Some cancerous cells express signatures normally associated with senescent cells, so why not try senolytic compounds against them? This is something of a full circle, given that most of the current senolytic drug candidates were originally characterized and tested as potential chemotherapeutics. The open access paper here is interesting for two points: firstly, that senolytic drugs didn't kill cancerous cells with a senescent signature, and secondly that a suicide gene therapy targeting that signature does work against both normal senescent cells and cancerous cells with a senescent signature. The gene therapy approach rep...
Source: Fight Aging! - March 7, 2018 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Tetramethylpyrazine is Senolytic in Bone Marrow: Reduces Inflammation and Improves Stem Cell Function in Mice
In this study, we aimed to investigate the local effect of TMP on the bone marrow of aging mice and to determine whether the senescent phenotype of MSCs could be eliminated. Our findings revealed that local delivery of TMP eliminates the senescent phenotype of LepR+ MSCs via epigenetically modulating
Source: Fight Aging! - March 3, 2018 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
The Possibility of Telomerase Therapy without Adding More Telomerase
Telomerase gene therapy as a treatment for aging is a popular topic these days, given the results in mice from past years, though I still think that more work needs to be done in mammals other than mice to address concerns related to cancer risk and effectiveness. Mice have telomere and telomerase dynamics that are quite different from those in humans, and the details of those differences might turn out to be important in the balance between greater stem cell activity and greater risk of cancer resulting from the activity of age-damaged cells. It is not unreasonable to think that adding a given amount of telomerase to cell...
Source: Fight Aging! - March 1, 2018 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Acoustic Shear Poration Technique to Deliver Genetic Material into Cells
Researchers at Washington University in St. Louis have developed a new technique to deliver genetic material into cells. Called Acoustic Shear Poration (ASP), the method combines ultrasound waves and focused mechanical force to create pores in the ce...
Source: Medgadget - February 28, 2018 Category: Medical Devices Authors: Conn Hastings Tags: Genetics Medicine Oncology Source Type: blogs
Fight Aging! Newsletter, February 26th 2018
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more.
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Source: Fight Aging! - February 25, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
An Energetic Exploration of the Biochemistry of Cellular Senescence is Underway
In 2011 a research group published the results from an animal study that demonstrated, in a way that couldn't be ignored, that the accumulation of senescent cells is a significant cause of aging and age-related disease. In fact, the evidence for this to be the case had been compelling for a very long time - this demonstration came nearly a decade after Aubrey de Grey, on the basis of the existing evidence at the time, included cellular senescence as one of the causes of aging in the first published version of his SENS research proposals. Yet nothing had been done to move ahead and achieve something with this knowledge. Tha...
Source: Fight Aging! - February 20, 2018 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Towards Lasting Therapeutic Manufactories that Operate Inside the Body
Gene therapies involve delivering instructions into cells to ensure that specific proteins are manufactured, either temporarily or permanently. This is effectively a hijacking or programming of cellular mechanisms. There is another approach, which is to deliver suitable DNA machinery into the body, capable of manufacturing the desired proteins outside cells. This isn't helpful for all types of protein, but in many cases it is. That machinery needs protection, however: naked, it would be quickly removed by the immune system or otherwise broken down. One possibility is to employ engineered bacteria, which removes the need to...
Source: Fight Aging! - February 19, 2018 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, February 19th 2018
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more.
This content is...
Source: Fight Aging! - February 18, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Weaponizing the Biochemistry of Huntington ' s Disease as a General Cancer Therapy
An interesting observation that has arisen over the years of epidemiological study of human age-related disease is that there are a number of distinct inverse relationships between incidence of cancer and incidence of some forms of neurodegeneration. This was in the news a few years ago in the case of Alzheimer's disease for example. Why would people with a higher risk of cancer suffer lower rates of Alzheimer's disease, however? We can only speculate at this point, but the more recent discovery I'll point out here adds fuel for that speculation. The Alzheimer's-cancer relationship is modest in size and somewhat complex in...
Source: Fight Aging! - February 14, 2018 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, February 12th 2018
In conclusion, most experimental data on immune changes with aging show a decline in many immune parameters when compared to young healthy subjects. The bulk of these changes is termed immunosenescence. Immunosenescence has been considered for some time as detrimental because it often leads to subclinical accumulation of pro-inflammatory factors and inflammaging. Together, immunosenescence and inflammaging are suggested to stand at the origin of most of the diseases of the elderly, such as infections, cancer, autoimmune disorders, and chronic inflammatory diseases. However, an increasing number of gerontologists have chall...
Source: Fight Aging! - February 11, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
The Longest-Lived Bats Have Unusual Telomere Biology
Researchers here find that the longest lived bats have unusual telomere biochemistry, and in fact unusual enough that the new knowledge may turn out to be of little relevance to the understanding of telomeres, telomerase, and aging in other mammals. It appears that they rely upon alternative lengthening of telomeres (ALT) to maintain telomere length, a process that doesn't operate in any normal adult human cell. Given that loss of telomere length appears to be a marker of aging rather than a cause, and a fairly loosely coupled marker at that, the real relevance of this area of biochemistry probably lies in the relationship...
Source: Fight Aging! - February 8, 2018 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, February 5th 2018
In this study, we tested the hypothesis that Gbp1 plays a role in regulating immunometabolism and senescence of macrophages. We found that Gbp1 was mainly expressed in macrophages, but not adipocytes in response to IFNγ/LPS stimulation; Gbp1 expression was significantly decreased in inguinal white adipose tissue (iWAT) of high-fat diet (HFD)-fed and aged mice. We also observed that downregulation of Gbp1 in macrophages resulted in M1 polarization and impairment of mitochondrial respiratory function possibly via disrupting mitophagy activity. Moreover, macrophages with downregulated Gbp1 displayed dampened glycolysis and e...
Source: Fight Aging! - February 4, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 29th 2018
In conclusion, the present study demonstrated that TIGIT is a prominent negative immune regulator involved in immunosenescence. This novel finding is highly significant, as targeting TIGIT might be an effective strategy to improve the immune response and decrease age-related comorbidities.
Delivery of Extracellular Vesicles as a Potential Basis for Therapies
https://www.fightaging.org/archives/2018/01/delivery-of-extracellular-vesicles-as-a-potential-basis-for-therapies/
Here I'll point out a readable open access review paper on the potential use of extracellular vesicles as a basis for therapy: harveste...
Source: Fight Aging! - January 28, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
TIGIT as a Therapeutic Target and Marker of T Cell Senescence and Exhaustion
In conclusion, the present study demonstrated that TIGIT is a prominent negative immune regulator involved in immunosenescence. This novel finding is highly significant, as targeting TIGIT might be an effective strategy to improve the immune response and decrease age-related comorbidities.
Source: Fight Aging! - January 24, 2018 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, January 22nd 2018
In conclusion, death is a natural part of human existence, but human progress is essentially a story of overcoming undesirable natural limits. In the near future, technological progress might make it possible to stop natural biological death. Should humankind embrace such technology? Yes: Even though such technology would not be without risks, the risks are almost certainly manageable. The benefits of ending natural death, on the other hand, are immense. Death is an obstacle that is slowing down human progress. If we remove that obstacle, humankind could increase the speed of both its moral and its epistemic progress.
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Source: Fight Aging! - January 21, 2018 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
