Wednesday March 20, 2019

Combination of Drugs for Diabetes and Hypertension may offer an effective new way to combat Cancer

the researchers found that the combination of the diabetes drug metformin and the antihypertensive drug syrosingopine drives cancer cells to programmed "suicide".

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Suicide for cancer cells via a combination drug
A combination drug of diabeties and hypertension to cure cancer,pixabay

London, December 28, 2016: A combination of drugs for diabetes and hypertension may offer an effective new way to combat cancer, suggests a new research.

In their experiments, the researchers found that the combination of the diabetes drug metformin and the antihypertensive drug syrosingopine drives cancer cells to programmed “suicide”.

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 “We have been able to show that the two known drugs lead to more profound effects on cancer cell proliferation than each drug alone,” said study first author Don Benjamin from the University of Basel in Switzerland.

“The data from this study support the development of combination approaches for the treatment of cancer patients,” Benjamin noted.

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Metformin is a widely prescribed drug for the treatment of Type-2 diabetes.

Besides its blood sugar lowering effect, it also displays anti-cancer properties. The usual therapeutic dose, however, is too low to effectively fight cancer.

At higher doses, the antidiabetic drug inhibits the growth of cancer cells but could also induce unwanted side effects.

The new research published in the journal Science Advances showed that the antihypertensive drug syrosingopine enhances the anti-cancer efficacy of metformin.

The study showed the cocktail of these two drugs is effective in a wide range of cancers.

“For example, in samples from leukemia patients, we demonstrated that almost all tumour cells were killed by this cocktail and at doses that are actually not toxic to normal cells”, Benjamin said.

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“And the effect was exclusively confined to cancer cells, as the blood cells from healthy donors were insensitive to the treatment,” Benjamin noted.

In mice with malignant liver cancer, enlargement of the liver was reduced after the therapy. Also the number of tumor nodules was less — in some animals the tumours disappeared completely.

The researchers found that the drugs interrupt the vital processes which provide energy for the cancer cell. (IANS)

  • Ruth

    I don’t like drink cocktail.

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New Finding! Scientists Have Developed Robotic Tool To Detect And Kill Cancer Cells in Humans

The researchers used their robotic system to study early-stage and later-stage bladder cancer cells. Previously, they had to extract the cell nuclei to examine it.

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The study, published in the journal Science Robotics, described the design in which a magnetic iron bead about 100 times smaller than the thickness of a human hair can be coaxed into any desired position within the cell, the Xinhua reported. Pixabay

Canadian scientists have developed a kind of magnetic tweezer that can precisely insert a minuscule bead robot into a live human cancer cell, pointing to a new option for diagnosing and killing cancer.

The study, published in the journal Science Robotics, described the design in which a magnetic iron bead about 100 times smaller than the thickness of a human hair can be coaxed into any desired position within the cell, the Xinhua reported.

The bead, about 700 nanometres in diameter, is placed on the microscope coverslip surrounded by six magnetic coils in different planes, and the cancer cell can swallow the bead into its membrane.

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They were able to measure how much stiffer the nucleus got when prodded repeatedly, and thus find out which cell protein or proteins might play a role in controlling this response, which could work as a new method of detecting cancer in early stage. Pixabay

Then, the researchers from University of Toronto controlled the bead’s position under a microscope, using a computer-controlled algorithm to vary the electrical current through coils and shaping the magnetic field in three dimensions.

The researchers used their robotic system to study early-stage and later-stage bladder cancer cells. Previously, they had to extract the cell nuclei to examine it.

The team measured cell nuclei in intact cells instead of breaking apart the cell membrane, showing that the nucleus is not equally stiff in all directions.

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In the later-stage cells, the stiffening response is not as strong as they are in the early stage, though both are seemingly similar, the researchers said. VOA

“It’s a bit like a football in shape. Mechanically, it’s stiffer along one axis than the other,” said Professor Sun Yu.

“We wouldn’t have known that without this new technique.”

They were able to measure how much stiffer the nucleus got when prodded repeatedly, and thus find out which cell protein or proteins might play a role in controlling this response, which could work as a new method of detecting cancer in early stage.

Also Read: Google Maps Rolling Out All New Features For Speed Traps And Accidents
In the later-stage cells, the stiffening response is not as strong as they are in the early stage, though both are seemingly similar, the researchers said.

Also, the team visualised using the tiny robots to either starve a tumour by blocking its blood vessels, or destroy it directly through mechanical ablation, although those applications are still a long way from clinical uses. (IANS)