Wednesday November 20, 2019

Blood Cancer: Stem Cell Protein Play An Important Role in Cure

The stem cell protein Asrij is misexpressed in several human hematological malignancies and implicated in the p53 pathway and DNA damage response, the team said.

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cancer
According to the study, published in the journal Blood, inactivation of the tumour suppressor p53 is essential for unrestrained growth of cancers. But only 11 per cent of hematological malignancies have mutant p53. VOA

Researchers have identified a stem cell protein that may help in finding cure for blood cancer.

The study, done on mice, suggests a stem cell protein called Asrij is a novel regulator of wild type tumour suppressor p53 stability in hematopoietic stem cells (HSCs).

cancer
According to the study, published in the journal Blood, inactivation of the tumour suppressor p53 is essential for unrestrained growth of cancers. But only 11 per cent of hematological malignancies have mutant p53. Pixabay

It could help design targeted therapies for myeloproliferative disease, a group of slow-growing blood cancers, according to researchers, including Maneesha S. Inamdar from the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) in Bengaluru.

“We provide a new mouse model resembling myeloproliferative disease and identify a post-translational regulator of wild type p53 essential for maintaining HSC quiescence that could be a potential target for pharmacological intervention,” the team said.

According to the study, published in the journal Blood, inactivation of the tumour suppressor p53 is essential for unrestrained growth of cancers. But only 11 per cent of hematological malignancies have mutant p53.

microscope
The study, done on mice, suggests a stem cell protein called Asrij is a novel regulator of wild type tumour suppressor p53 stability in hematopoietic stem cells (HSCs). Pixabay

Mechanisms that cause wild type p53 dysfunction and promote leukemia are inadequately deciphered, suggests the study.

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The stem cell protein Asrij is misexpressed in several human hematological malignancies and implicated in the p53 pathway and DNA damage response, the team said.

For the study, the team generated the first Asrij null (knockout, KO) in mice and showed they are viable and fertile with no gross abnormalities. However, by six months, they exhibited increased peripheral blood cell counts, splenomegaly and an expansion of bone marrow HSCs with higher myeloid output. (IANS)

 

 

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A Molecule in Immune System Can Target and Kill Cancer Cells: Study

Crucially, there is a need to induce the immune system to ensure long-term protection against the recurrence of cancer

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Immune
Current approaches to achieve this involve killing Cancer cells by using chemotherapeutics and other agents which could be harmful and have uncertain outcomes other than Immune Bacteria. Pixabay

Researchers have found a naturally occurring molecule and a component of the Immune system that could successfully target and kill Cancer cells, according to a study.

The study, published in British Journal of Cancer, discovered that beta-galactoside-binding protein, a naturally occurring molecule produced by immune cells can non-specifically target cancer cells, make them undergo cell death and through a stress response pathway make the cancer cells visible to the immune system to prompt an anti-cancer immune response that would secure protection against recurrences.

“By contrast, the anti-tumour property of the molecule is selective and not harmful to normal cells. It is effective against the most aggressive colorectal cancer cells and a wide range of other cancer cells equally unresponsive to current therapies,” said study lead author Professor Livio Mallucci from King’s College London.

“This research presents experimental evidence for a strategy where the targeting of cancer cells and the stimulation of immunity combine to prompt immediate and long-term responses against aggressive cancer,” he said.

According to the researchers, major developments in anti-cancer therapies have taken place over the last decade, but as only a subset of patients respond to treatments, there is a need for further development.

Crucially, there is a need to induce the immune system to ensure long-term protection against the recurrence of cancer.

Immune
Researchers have found a naturally occurring molecule and a component of the Immune system that could successfully target and kill Cancer cells, according to a study. Pixabay

Current approaches to achieve this involve killing cells by using chemotherapeutics and other agents which could be harmful and have uncertain outcomes, the study said.

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“Translation of the molecule to the clinic could open a new therapeutic opportunity which safely combines direct killing of cancer cells and the stimulation of the immune system against recurrences, a significant step forward in the management of cancer,” he added. (IANS)