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Telomerase in Medical News

RevGenetics Releases Its New Science-Based Telomere Health Supplement Formulation for DNA and Chromosome Health

... What Astral Fruit does is activate the enzyme telomerase by using a natural herbal extract. telomerase is a naturally occurring activity that the immune ... when preparing to combat infection. However, telomerase also repairs cellular damage in the cells' ...

Also in the March 24 JNCI

... Human Cytomegalovirus Stimulates telomerase Activity in Tissue Culture Cells Infection ... cytomegalovirus (HCMV) triggers expression of the telomerase reverse transcriptase (hTERT) gene in both normal ... Several other cancer-related viruses stimulate telomerase activity, which promotes cell proliferation and ...

Immune cells from patients with rheumatoid arthritis have prematurely aged chromosomes

... information after repeated cell division. telomerase adds short repeated DNA sequences to the ends of ... of the very few cells in adults that can turn on telomerase when stimulated, probably because they have to ... with rheumatoid arthritis make 40 percent less telomerase enzyme when stimulated. The cells came from 69 ...

Secrets of Telomerase Revealed

... an enzyme involved in both cancer and aging. telomerase works by adding repeats of a short DNA sequence ... loss of genetic information during cell division. telomerase works in embryonic stem cells and other cells ... In cancer cells, the ability to activate telomerase is often ....

Stanford researchers unmask proteins in telomerase, a substance that enables cancer

... keeping stem cells healthy. With such a resume, telomerase has been the subject of avid interest by basic ... know is what other proteins make up the massive telomerase complex. Until now, that is. Researchers at ... have identified two new proteins that make up the telomerase complex and have a lead on several more. This is ...

JCI table of contents: Nov. 15, 2007

... pathologic accumulation of fibrous scar tissue. telomerase is a protein most notable for its connections to ... School, Ann Arbor, has identified a role for telomerase in the progression of this disease in mice. telomerase activity is dependent on the presence of a ...

Telomerase enzyme structure provides significant new target for anti-cancer therapies

... all of human cancers. Since the mid-1990s, when telomerase was first identified in human tumors, scientists ... structure of a domain, or region, of the telomerase molecule essential for the activity of the ... the first direct inhibitors of telomerase. telomerase also has been shown to play a central role in ...

New telomere discovery could help explain why cancer cells never stop dividing

... cells (and some stem cells), an enzyme called telomerase rebuilds the telomere so that the cells can keep dividing. Over time, this telomerase dwindles and eventually the telomere shortens and the cell becomes inactive. In cancer cells, the telomerase enzyme keeps rebuilding telomeres long past the ...

Chronic stress can steal years from caregivers' lifetimes

... shorten, losing genetic instructions. An enzyme telomerase normally works to repair that damage to the ... the telomeres shorten and the activity of the telomerase enzyme lessens, he said. It's part of the aging ... those of the controls, and that the level of the telomerase repair enzyme among caregivers was also lower. ...

AIDS Drug Slows Spread of Deadly Childhood Brain Cancer

... of Cancer reports that ABC (Abacavir) suppresses the enzyme telomerase. telomerase activity appears to be essential for certain tumor survival and growth, ... appeared better tolerated by patients than other drugs used to target telomerase in trials, and ABC's safety record in long-term AIDS treatment would make ...

Discovery of widespread tumor growth gene holds promise for effective anti-cancer treatment

... board. These figures are high, explains Professor Alberti. In comparison, telomerase over-expression, possibly the most fundamental mechanism for cell immortalisation, is observed in 80% of all tumours. telomerase is an enzyme that adds specific DNA repeats to the ends of chromosomes, so ...

Testes stem cell can change into other body tissues, Stanford/UCSF study shows

... with pluripotency. The cells could also be induced to differentiate into decidedly non-testicular neural cell precursors and they expressed the telomerase enzyme essential to keep pluripotent cells young and unspecialized. However, when the researchers examined the cells' patterns of methylation a ...

The 2009 Leibniz Prize: Eleven new scientific discoverers

... was able to show that telomere shortening ultimately leads to a shorter lifespan and that the occurrence of liver cirrhosis depends on the level of telomerase activity, for example. Rudolph's finding that telomere shortening has two contradictory effects on the occurrence of cancer is especially important: ...

Experts to share how research is tackling cancer

... people in recognition of her research, which has revealed why cancer cells keep growing. "Professor Blackburn's discovery of a protein called telomerase is considered the holy grail of cancer research. Her research has allowed us to understand how cancer cells keep growing over time, which has opened ...

Breast Cancer Vaccines Look Promising

... antigens to trigger an immune response against cancer cells already in the body. In her study, Domchek used pieces of a protein called human telomerase reverse transcriptase (hTERT) peptide to vaccinate 19 women with breast cancer that had spread. The peptide is nearly universally overexpressed in ...

Targeted Anticancer Drugs - In Vitro Assessment and Non-Invasive Imaging of Patient and Tumor Status Will Determine Clinical and Commercial Success

... sphingosine kinase (SPHK); spingomyelin synthase; Src pathway; stromal derived factor 1 (SDF-1); superoxide dismutase 1, soluble (SOD1); survivin; telomerase reverse transcriptase (TERT, hTERT); telomerase; tenascin-C (TN-C); TGF-beta; TGF- beta2; thioredoxin-1 (trx-1); tie-2; toll-like receptor 7 (TLr7); ...

Other highlights in the Jan. 8 JNCI

... shorten, giving normal cells a finite lifespan. Tumor cells are able to achieve cellular immortality by increasing the production of enzymes known as telomerase that can lengthen the telomeres. In a review, Christophe Nicot, Ph.D., and graduate student Marcia Bellon and of the University of Kansas Medical ...

Investigators uncover intriguing clues to why persistent acid reflux sometimes turns into cancer

... how and why the cells change in some cases and not others has been a major challenge for investigators. Researchers compared telomere length and telomerase activity in biopsy specimens from 38 patients with GERD and 16 control patients. This new line of research suggests that the continuous acid bath ...

Telomerase Expression Linked To Body Mass

... telomerase is an enzyme that is known to have healing ... the lifespan of an organism and the amount of telomerase expressed were// related but it is now been ... study to discover why some animals express telomerase while others, like humans, don't. The findings ...

Revelation Of Cancer Agent Could Help In Developing Effective Cancer Drugs

... drugs. The over-activity of an enzyme called telomerase is believed to contribute to the unchecked growth ... However, cancer cells find a way to activate telomerase - triggering uncontrolled cell division. Developing therapies that block the action of telomerase could be the key to treat many types of cancer. ...

Urine testing for telomerase enzyme for bladder cancer diagnosis

... is used to measure the level of the enzyme telomerase in urine of patients. The results of the study ... bladder cancer and tested for the presence of telomerase enzyme in their urine, which is present in most ... perform; and permits a quantitative evaluation of telomerase activity in cellular extracts from urine, but the ...

Telomerase Vital In Maintaining Ability of Stem Cell to Multiply

... in the stem cell and preventing further division. But a protein called telomerase prevents this from happening and thus cells can divide "n" number of ... mice develop disease only because their telomeres are short, and having telomerase doesn't lengthen them right away." The condition in these altered mice ...

Salk Scientists - Links Between Cancer and Aging

... growth arrest.' However, the most interesting finding was what the scientists observed in cells supplied with added telomerase. 'When we put telomerase into cells, we suppressed accumulation of mutations to the same degree as when we put the WRN protein back,' reports Karlseder. 'It fixed the defect ...

Wear and Tear of Stress: The Psychoneurobiology of Aging

... constant stress, like those in caregiver situations or those who suffer from obesity and/or diabetes. These people are more likely to have decreased telomerase activity. Telomeres are enzymes that regulate how many times an individual cell can divide. Telomeric sequences shorten each time the DNA replicates, ...

Studying the psycho neurobiology of aging

... constant stress, like those in caregiver situations or those who suffer from obesity and/or diabetes. These people are more likely to have decreased telomerase activity. Telomeres are enzymes that regulate how many times an individual cell can divide. Telomeric sequences shorten each time the DNA ...

Inactivation of Rad9 in Tumor Cells Would Be Advantageous In Cancer Therapy

... The findings were published in the journal Molecular and Cellular Biology. It was found that Rad9 proteins interact with chromosomes telomeres. telomerase are structures at the ends of chromosomes which protects the chromosome from fusion or degradation. Rad9 proteins interact with proteins called ...

Researchers Gather Stem Cells From Discarded Placenta

... these are not stem cells totally, as they will not be able to regenerate indefinitely. This is because some of these cells do not express the gene telomerase that is associated with normal replication of DNA and chromosomes associated with cell divisions. Source: EurekAlert Medindia on Stem ...
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