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Archive for the ‘bioengineering’ category: Page 202

Jul 29, 2016

Promising Cancer-Fighting Gene Immunotherapy Could Be Used Against HIV, UCLA Research Suggests

Posted by in categories: bioengineering, biotech/medical

AWESOME.


New UCLA research suggests that a gene-based immunotherapy that has shown promising results against cancer could also be used against HIV, the virus that causes AIDS.

In a study to be published in an August issue of the bi-monthly peer-reviewed Journal of Virology, researchers with the UCLA AIDS Institute and Center for AIDS Research found that recently discovered potent antibodies can be used to generate chimeric antigen receptors, or CARs, that can be used to kill cells infected with HIV-1.

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Jul 28, 2016

Yale team designs gene modification system

Posted by in categories: bioengineering, biotech/medical, genetics

A Yale research team has designed a system to modify multiple genes in the genome simultaneously, while also minimizing unintended effects. The gene-editing “toolbox” provides a user-friendly solution that scientists can apply to research on cancer and other disciplines, according to a news release from Yale.

The study was published on July 26 in Nucleic Acids Research.

The news release states that, with modern genetic engineering techniques, researchers can edit genes in experiments. This allows researchers to study important disease-related genes and may ultimately allow them to treat genetic diseases by making edits in specific sites of the human genome. However, progress has been hampered by several challenges, including the editing of unintended sites — referred to as off-target effects.

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Jul 28, 2016

U.S. wary on biotech advances; gene editing, CRISPR ‘raising urgency’

Posted by in categories: bioengineering, biotech/medical, ethics

Hmmm.


We can rebuild him; we have the technology—but Americans question if we should in a new survey designed to assess attitudes to modern biotechnology advances.

A new report, based on a survey of 4,700 U.S. adults coming out of the Pew Research Center, looked at a range of views on certain advances in biology, with opinions split on the ethics and long-term problems associated with enhancing human capacity.

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Jul 26, 2016

Most people are too scared to use brain chips and synthetic blood to improve performance

Posted by in categories: bioengineering, biotech/medical, computing, military, neuroscience, singularity

On the path towards Singularity — I believe that this is an individual choice. However, to remain relevant and competitive in industry we may see a day when folks will require this type of enhancement to compete, perform in military operations, etc.


The researchers carried out a survey of more than 4,700 US adults.

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Jul 26, 2016

Building a Better Human With Science? The Public Says, No Thanks

Posted by in categories: bioengineering, biotech/medical, computing, neuroscience, science

The public was unenthusiastic on all counts, even about protecting babies from disease.


Americans aren’t very enthusiastic about using science to enhance the human species. Instead, many find it rather creepy.

A new survey by the Pew Research Center shows a profound distrust of scientists, a suspicion about claims of progress and a real discomfort with the idea of meddling with human abilities. The survey also opens a window into the public’s views on what it means to be a human being and what values are important.

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Jul 25, 2016

How MIT’s new biological ‘computer’ works, and what it could do in the future

Posted by in categories: bioengineering, biotech/medical, computing, singularity

As I and others have shared for a while, Bio/ DNA Computing will be a major key piece of the Singularity picture.


MIT has taken a big step toward the ability to use engineered life-forms as a means of sensing, tracking, and even doing basic computing of information.

Read more

Jul 24, 2016

Engineered bacteria deliver an anti cancer tumor toxin in mice before self-destructing

Posted by in categories: bioengineering, biotech/medical, genetics

I never get tired of hearing more information on this research.


A synthetic genetic circuit programmed into an attenuated Salmonella enterica subspecies can be used to systemically deliver an anti-tumor toxin into mice with cancer. The circuit allows the bacterial cells inside a tumor to synchronously self-destruct by lysis, releasing the toxin directly in the tumor.

Researchers at the University of California San Diego and the Massachusetts Institute of Technology (MIT) have come up with a strategy for using synthetic biology in therapeutics. The approach enables continual production and release of drugs at disease sites in mice while simultaneously limiting the size, over time, of the populations of bacteria engineered to produce the drugs.

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Jul 22, 2016

Chinese team to pioneer first human CRISPR trial

Posted by in categories: bioengineering, biotech/medical, health

(Medical Xpress)—A team of researchers at Sichuan University’s West China Hospital has announced plans to begin a clinical trial where cells modified using the CRISPR gene editing technique will be used on human beings for the very first time. They plan to edit genes in such a way as to turn off a gene that encodes for a protein that has been shown by prior research to slow an immune response and by so doing treat patients with lung cancer.

The CRISPR has been in the news a lot of late as scientists creep ever closer to using it as a means to treat diseases or to change the very nature of biological beings. China has been a leader in promoting such research on human beings—they were the first to use the technique to on human embryos.

This new effort is seen as far less controversial—a team in the U.S. is planning a similar study as soon as they can get regulators to greenlight their project. The Chinese team plans to retrieve T cells from patients that have incurable and then edit the genes in those cells. More specifically, they will be looking to disable a gene that encodes for a protein called PD-1—prior research has shown that it acts as a brake on an to help prevent attacks on healthy cells. Once the cells have been edited and inspected very carefully to make sure there were no editing errors they will be allowed to multiply and then all of the cells will be injected back into the same patient’s bloodstream. It is hoped that the edited cells will cause the immune system to mount a more aggressive attack on , killing them and curing the patient.

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Jul 20, 2016

Proteins that move DNA around in a bacterium are surprisingly similar to those in our own cells

Posted by in categories: bioengineering, biotech/medical, evolution, singularity

Perfecting Synthetic biology — this definitely is advancement forward in the larger Singularity story.


In both higher organisms and bacteria, DNA must be segregated when cells divide, ensuring that the requisite share of duplicated DNA goes into each new cell. While previous studies indicated that bacteria and higher organisms use quite different systems to perform this task, A*STAR researchers have now found a bacterium that uses filaments with key similarities to those in multicellular organisms, including humans.

Robert Robinson from the A*STAR Institute of Molecular and Cell Biology has a long-standing interest in what he calls the “biological machines” that move DNA around when cells divide. He and his co-workers had gleaned from gene sequencing analysis that there was something distinctive about the DNA-moving machinery in the bacterium Bacillus thuringiensis.

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Jul 20, 2016

Synthetic biology used to limit bacterial growth and coordinate drug release

Posted by in categories: bioengineering, biotech/medical, genetics

Beautiful.


Researchers at the University of California San Diego and the Massachusetts Institute of Technology (MIT) have come up with a strategy for using synthetic biology in therapeutics. The approach enables continual production and release of drugs at disease sites in mice while simultaneously limiting the size, over time, of the populations of bacteria engineered to produce the drugs. The findings are published in the July 20 online issue of Nature.

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