DNA Damage News and Research

RSS

Women who carry a mutation in PALB2 gene more likely to be diagnosed with breast cancer

Most of us have heard about the BRCA1 and BRCA2 genes. Men and women with a personal and/or family history of breast cancer have been offered testing for mutations in these two genes for a number of years to determine if they are at greater risk for breast and other cancers.

12 Oct 2021

Common gut bacteria can fuel prostate cancer growth and treatment resistance

Common gut bacteria can fuel the growth of prostate cancers and allow them to evade the effects of treatment, a new study finds.

7 Oct 2021

Researchers compare transcriptomic and cytokine responses of colorectal cancer cells

Oncotarget published "Pan-drug and drug-specific mechanisms of 5-FU, irinotecan (CPT-11), oxaliplatin, and cisplatin identified by comparison of transcriptomic and cytokine responses of colorectal cancer cells" which reported that there was an increase in IL-8 by oxaliplatin and increase in ferritin by cisplatin which may contribute to cancer cell survival.

29 Sep 2021

Researchers describe a novel role for hnRNP E1 protein in binding DNA in the nucleus

Cancer is a devastating disease and is the second leading cause of death in the U.S. One of the hallmarks of cancer is genomic instability, or the tendency to accumulate mutations and damage to the DNA that leads to genome alterations during cell division.

25 Sep 2021

R37 MERIT Award supports innovative ovarian cancer research

One of the most impactful advancements during the past decade in treating ovarian cancer is the use of PARP inhibitors (short for poly adenosine diphosphate-ribose polymerase). PARP inhibitors are a type of cancer drug that blocks the PARP enzyme from helping to repair DNA damage in cancer cells.

18 Sep 2021

GIST researchers unravel coordination mechanism of base excision repair

A new study by researchers from the Gwangju Institute of Science and Technology in the Republic of Korea has revealed the mechanism of DNA repair by enzymes exonuclease III and polymerase I by utilizing single molecule fluorescence resonance energy transfer (smFRET)-enabled dynamic observation.

14 Sep 2021

SARS-CoV-2 may have consequences to host cells beyond evoking an immune response

A recent study examined the ability of SARS-CoV-2 to impact DNA damage response and telomere stability in Vero E6 cells.

13 Sep 2021

HKBU scientists find significant link between PM2.5 exposure and neurological disorders

A comprehensive, systematic meta-analysis conducted by HKBU scientists found a significant association between exposure to PM2.5, i.e., fine particulates with equivalent diameters of less than 2.5 microns suspended in the air, and neurological disorders.

7 Sep 2021

Cancer treatment with terpyridine platinum compounds induces telomere dysfunction, chromosome instability

Oncotarget published "Terpyridine platinum compounds induce telomere dysfunction and chromosome instability in cancer cells" which reported that this assay is based on the use of two isogenic HT1080 cell lines, one carrying a linear HAC and the other carrying a circular HAC.

6 Sep 2021

Uppsala researchers find solution to long-standing biological search enigma

How the cell can mend broken DNA using another DNA copy as template has puzzled researchers for years. How is it possible to find the correct sequences in the busy interior of the cell? Researchers from Uppsala university have now discovered the solution; it is easier to find a rope than a ball if you are blindfolded.

1 Sep 2021

DNMT2/TRDMT1 gene knockout may potentiate adverse effects related to drug-induced senescence

Aging-US published "The lack of functional DNMT2/TRDMT1 gene modulates cancer cell responses during drug-induced senescence" which reported that cellular senescence may be a side effect of chemotherapy and other anti-cancer treatments that may promote inflammation and paracrine secondary senescence in healthy tissues.

31 Aug 2021

Combination therapy disables PI3K/Akt/mTOR pathway and induces apoptosis in carcinoid syndrome

Oncotarget published "Next-generation multimodality of nutrigenomic cancer therapy: sulforaphane in combination with acetazolamide actively target bronchial carcinoid cancer in disabling the PI3K/Akt/mTOR survival pathway and inducing apoptosis" which reported that microscopic imaging, immunocytochemistry, wound healing assay, caspase-cleaved cytokeratin 18 CytoDeath ELISA assay, immunofluorescence labeling assays for apoptosis, hypoxia, Western Blotting, Tunnel assay, measurement of 5-HT secretion by carbon fiber amperometry assay, quantitative methylation-specific PCR, morphologic changes, cell viability, apoptosis activity and the expression levels of phospho-Akt1, Akt1, HIF-1α, PI3K, p21, CAIX, 5-HT, phospho-mTOR, and mTOR in xenografts derived from typical H727 and atypical H720 BC cell lines.

28 Aug 2021

Adding berzosertib to standard treatment for metastatic urothelial cancer does not extend patient survival

A Phase 2 trial led by City of Hope, a world-renowned research and treatment center for cancer and diabetes, suggests that adding the novel ataxia telangiectasia and Rad3-related (ATR) inhibitor drug berzosertib to standard-of-care chemotherapy for patients with metastatic urothelial cancer does not extend progression-free survival.

27 Aug 2021

Study offers hope for an era of safer chemotherapy in breast cancer

Breast cancer is the deadliest and most common type of cancer in women. The treatment options often require administration of anti-cancer drugs in high doses, as the cells develop resistance towards chemotherapy, leading to painful side effects in patients.

23 Aug 2021

Researchers report potential of a berry-producing vine against lung cancer in mice

Lung cancer is known to be the most fatal form of cancer. Chemicals like 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) found in tobacco are usually the main culprits behind smoking-related lung cancer causing cancer biologists to actively explore targeted treatments.

17 Aug 2021

Specific leukemia gene mutations exert divergent effects on DNA repair and sensitivity to PARP Inhibitors

In a recent study published in Cancer Research, researchers from Fels Cancer Institute for Personalized Medicine at the Lewis Katz School of Medicine at Temple University and Fox Chase Cancer Center identified specific leukemia gene mutations and the mechanisms by which they regulate DNA repair and respond to PARP inhibitors.

13 Aug 2021

PTEN nuclear translocation plays a key role in neuronal injury following hypoxia-ischemia

Aging-US published "PTEN nuclear translocation enhances neuronal injury after hypoxia-ischemia via modulation of the nuclear factor-κB signaling pathway" which reported that this study was designed to investigate phosphatase and tensin homolog nuclear translocation and its possible role in rat cortical neuronal damage following oxygen-glucose deprivation in vitro.

9 Aug 2021

New study offers insight into how high-risk form of blood cancer can develop in children

In some children with acute myeloid leukemia, cancer cells have the same amount of DNA changes as healthy blood stem cells.

6 Aug 2021

Melanoma mutations result from a chemical conversion in DNA fueled by sunlight, study reports

The mutations that give rise to melanoma result from a chemical conversion in DNA fueled by sunlight - not just a DNA copying error as previously believed, reports a study by Van Andel Institute scientists published today in Science Advances.

30 Jul 2021

SARS-CoV-2 reprograms host chromatic network to induce immune dysfunction

A recent study conducted at the University of Texas Science Center, Houston, in the USA, has revealed that upon infection, SARS-CoV-2 alters the host chromatin architecture to suppress antiviral interferon-responsive genes and augment inflammatory genes. The study is currently available on the bioRxiv* preprint server.

22 Jul 2021