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Continue reading “Blood Test #6 in 2022: Diet Composition (Part I)” »

Cancer research – and its impact on patient care – has made some significant strides in just the last 10 years. For example, the availability and affordability of sequencing genetic information has improved greatly – meaning researchers and doctors are now better able to get information about a person’s risk for certain cancers as well as what drugs might work best for cancer patients. Another major leap forward came with the approval of vaccines that help prevent infections from the human papilloma virus (HPV) that cause cervical cancers. Many other advances have occurred in the areas of targeted therapy, immunotherapy, and cancer screening technology.

Still, cancer remains a massive health problem that researchers across the United States and elsewhere are working tirelessly to solve. Many experts are hopeful that they can build on decades of learning and recent advances to move even more rapidly toward reducing the cancer burden.

We invited 10 American Cancer Society Research Professors to share their perspectives and predictions for how cancer research will evolve over the next 10 years – and what this might mean for patients. These 10 experts are among the very best in their field; the Society’s Research Professor grants are awards that go to a select group – researchers and doctors who have made seminal contributions that have changed the direction of basic, clinical, psychosocial, behavioral, health policy or epidemiologic cancer research.

She worked in top labs at Stanford and Harvard. Now she wants to disrupt a 100-Billion-Dollar market by rejuvenating your skin using genetic engineering.

The lone volunteer in a unique study involving a gene-editing technique has died, and those behind the trial are now trying to figure out what killed him.

Terry Horgan, a 27-year-old who had Duchenne muscular dystrophy, died last month, according to Cure Rare Disease, a Connecticut-based nonprofit founded by his brother, Rich, to try and save him from the fatal condition.

Although little is known about how he died, his death occurred during one of the first studies to test a gene editing treatment built for one person. It’s raising questions about the overall prospect of such therapies, which have buoyed hopes among many families facing rare and devastating diseases.

The controversial scientist freed this year from jail for illegal medical practices has relocated to Beijing for his proposed US$7.2 million project.

With inherited gene mutations from both parents, a woman in Spain is battling with 12 tumors in her body.

As stated by the Spanish National Cancer Research Centre (CNIO), the woman first developed a tumor when still a baby and other tumors followed it within five years. 36 year-old-patient has developed twelve tumors, at least five of them malignant in her life. Each one has been of a unique kind and has affected a different area of the body.

“We still don’t understand how this individual could have formed during the embryonic stage, nor could have overcome all these pathologies,” says Marcos Malumbres, director of the Cell Division and Cancer Group at the Spanish National Cancer Research Centre (CNIO).

Genetic engineering is a rapidly progressing scientific discipline, with tremendous current application and future potential. It’s a bit dizzying for a science communicator who is not directly involved in genetics research to keep up. I do have some graduate level training in genetics so at least I understand the language enough to try to translate the latest research for a general audience.

Many readers have by now heard of CRISPR – a powerful method of altering or silencing genes that brings down the cost and complexity so that almost any genetics lab can use this technique. CRISPR is actually just the latest of several powerful gene-altering techniques, such as TALEN. CRISPR is essentially a way to target a specific sequence of the DNA, and then deliver a package which does something, like splice the DNA. But you also need to target the correct cells. In a petri dish, this is simple. But in living organism, this is a huge challenge. We have developed several viral vectors that can be targeted to specific cell types in order to deliver the CRIPR (or TALEN), which then targets the specific DNA.

Continue reading “Alternative Gene Splicing — Another Method of Bioengineering” »

A Ludwig Cancer Research study has developed a novel nanotechnology that triggers potent therapeutic anti-tumor immune responses and demonstrated its efficacy in mouse models of multiple cancers. Led by Co-director Ralph Weichselbaum, investigator Wenbin Lin and postdoctoral researcher Kaiting Yang at the Ludwig Center at Chicago, the study describes the synthesis, mechanism of action and preclinical assessment of the nanoparticle, which is loaded with a drug that activates a protein central to the efficient induction of anti-cancer immunity. The study, which overcomes significant technical barriers to targeting that protein-;stimulator of interferon genes, or STING-;for cancer therapy, appears in the current issue of Nature Nanotechnology.

“The nanoparticles developed by the Lin lab release a drug that targets macrophages and can activate potent antitumor immune responses that extend the survival of mice bearing a variety of tumors,” said Chicago Center Co-director Weichselbaum. “When used in combination with radiotherapy and immunotherapy, they even help control ‘cold tumors’ that are otherwise almost completely impervious to immune attack.”

STING is part of cellular sensing system for DNA fragments, which are generated by infection or cancer treatments that damage DNA, like radiotherapy and some chemotherapies. Its activation promotes inflammation and drives immune cells like macrophages and dendritic cells to process and present cancer antigens to T cells, helping to stimulate and direct the immune assault on tumors. Though STING is a prized target for drug development, the drug-like molecules that can activate the molecular sensor-;known as cyclic dinucleotides (CDNs)-;have been plagued by issues of poor bioavailability, low stability and high toxicity in the absence of any means to target them specifically to tumors.

Circa 1999 this can lead to genetic editing that allows people to handle even a nuclear fallout level of radiation and even allow them to handle outer space better.

Rockville, MD — No, it’s not the cockroach, but rather a strain of pink bacteria that can survive 1.5 million rads of gamma irradiation — a dose 3,000 times the amount that would kill a human. This dose of radiation shreds the bacteria’s genome into hundreds of pieces. The organism’s remarkable ability to repair this DNA damage completely in a day and go on living offers researchers tantalizing clues to better understanding the mechanism of cellular repair. Advances in this area could in turn improve our understanding of cancer which is frequently caused by unrepaired DNA damage. Genetically engineering the microbe could lead to improved ways to cleanup pollution and to new industrial processes.

U.S. Department of Energy-funded researchers at The Institute for Genomic Research (TIGR) describe the complete genetic sequence of the bacteria Deinococcus radiodurans in the November 19 issue of Science.

“This is a significant accomplishment,” Secretary of Energy Bill Richardson said. “The Department of Energy began microbial genome work to support bold science and to help meet our unique environment and energy mission needs. Besides the insights into the way cells work, this new research may help provide a new safe and inexpensive tool for some of the nation’s most difficult cleanup challenges.”