cancer Archives | What is Epigenetics?

Reversing Fate: Exploiting Epigenetics to Treat Drug Resistance in Cancer

June 27, 2023 Pamela A. Harvey

All cancerous tumors exhibit these reversible epigenetic changes that could represent novel reprogrammable targets to address drug resistance (1). Recent research published in Communications Biology provides essential information about the specific epigenetic alterations that may be responsible for chemotherapy resistance (2). Drug Resistance in Cancer More than 90% of the mortality caused by cancer can be linked to drug resistance (3). The molecular mechanisms mediating drug resistance in cancerous cells include increased function of enzymes that render drugs ineffective, mutations [more…]

Epigenetic Study Identifies Potential Drug Targets for a Rare Type of Bone Marrow Cancer

April 12, 2022 Natalie Crowley

There are many treatment options for cancer today, yet it continues to be a major health problem, killing hundreds of thousands of people in the US each year. While conventional therapies like chemo and radiation have successfully extended survival rates, they don’t necessarily work for all patients, especially those with late-stage or rare cancers. As a result, more advanced treatments and diagnostic methods are being sought after to stem the cancer death toll. One research area that shows great promise [more…]

How Inflammation Epigenetically Primes Epithelial Cells to Promote Pancreatic Cancer

September 28, 2021 Natalie Crowley

Pancreatic cancer may not be as common as some cancers, but it has a bad reputation for being highly fatal, especially since it’s difficult to detect early. Smoking, diabetes, family history, and alcohol abuse are among the top risk factors associated with this disease. While it’s difficult to determine the exact causes of pancreatic cancer, a key mediator in its development is inflammation. Understanding why inflammation might lead to tumor growth in the pancreas has scientists examining the underlying mechanisms [more…]

Epigenetic Switches May Leave DNA Vulnerable

November 26, 2019 Andrea P

The field of epigenetic research has been making huge strides in identifying the mechanisms involved in controlling how genes are expressed. A lot of effort is put into studying the importance of the genetic code documented in cells, but also of the structure of the chromatin supporting it. As the protein-based infrastructure surrounding DNA, chromatin controls how exposed the DNA is. No matter how critical the genetic sequence may be, it won’t be properly transcribed into RNA and then into functional proteins [more…]

Epigenetic Computer Program ‘CancerLocator’ Detects and Pinpoints Cancer

April 11, 2017 Bailey Kirkpatrick

What if instead of invasive cancer tests, scientists could run a blood sample through a computer program and not only detect whether cancer is present or not, but pinpoint where in the body it’s located? This technology, harnessed by a program called CancerLocator, could potentially be ready in a year. In a recent study published in Genome Biology, researchers from the University of California at Los Angeles (UCLA) developed a computer program that identifies specific epigenetic patterns, or a combination [more…]

Demethylating Agent May Boost Chemotherapy Effectiveness for Specific Type of Childhood Leukemia

January 16, 2017 Natalie Crowley

Fifty years ago, a child diagnosed with acute lymphoblastic leukemia (ALL), the most common type of pediatric cancer, had little to no chance of survival. Today, those odds have increased dramatically thanks to tremendous advances in chemotherapy and other treatments. Cure rates for this type of leukemia can reach as high as 90 percent. Yet, there is one subgroup of pediatric ALL that is still very therapy resistant, T-Acute Lymphoblastic Leukemia (T-ALL). T-ALL is an uncommon, though aggressive, subclass of [more…]

Researchers Reveal Why Some Cancers Override HDAC Inhibitor Drugs

November 10, 2015 Bailey Kirkpatrick

UK scientists from The University of Birmingham have discovered how certain cancer cells can adapt and render cancer drugs ineffective. These drugs, known as histone deacetylase (HDAC) inhibitors, are designed to disrupt cancer cells’ genetic controls. Their research, published in Epigenetics and Chromatin, may help create new therapies focused on preventing tumors from overcoming HDAC inhibitors (HDACi). Genes can be switched on or off via molecular tags that attach to DNA and transfer signals to tell the cell how to [more…]

DNA damage and histone modifications on DNA

Epigenetic Study of Histone Modifications and DNA Damage Could Lead to New Cancer Treatments

October 13, 2015 Bailey Kirkpatrick

DNA damage occurs frequently to cells as a result of normal cellular processes, but one of the worst genetic malfunctions that can occur is DNA double-strand breaks, or DSBs. This can lead to cancer and increased resistance to cancer therapy. New research from scientists at The University of Texas MD Anderson Cancer Center reported their findings regarding histone modifications, the cause of DNA double-strand breaks, and possible ways they can be fixed. Their research was published in Nature Cell Biology. [more…]

DNa methylation and glucocorticoid resistance helps fight cancer

DNA Methylation and Glucocorticoid Resistance Offers Clues to Improve Cancer Drugs

May 12, 2015 Bailey Kirkpatrick

Scientists from St. Jude Children’s Research Hospital conducted a study that illuminates a mechanism by which leukemia cells resist steroids, a key factor detrimental to the success of chemotherapy. This discovery could help create more effective cancer drugs and improve the treatment of many autoimmune related diseases. The researchers looked at a certain type of steroid hormones involved in the immune system, known as glucocorticoids. These hormones are crucial components to the chemotherapy drug cocktail that has helped increase long-term [more…]

natural killer cells manipulated epigenetics histones

New Study Shows Epigenetic Process Controls Cancer-Killing Cells

October 1, 2013 WhatIsEpigenetics

A new study from the scientists at the University of Southern California (USC) describes for the first time how natural killer (NK) cells, which are able to kill and contain viruses and cancerous tumors in the human body, can be manipulated by epigenetics. Through a series of experiments in mice, these scientists found that MYSM1, an enzyme in the body’s immune system that turns genes on and off by modifying proteins called histones embedded in DNA, is required for natural [more…]

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