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BIOBOARD - ASIA-PACIFIC
Protein might be key to speeding up development of regenerative medicine
The discovery on cellular reprogramming could lead to a faster and easier way of converting skin cells into other cell types to enhance cell-based therapies

Scientists from A*STAR鈥檚 Institute of Molecular & Cell Biology (IMCB) have discovered a key epigenetic protein H3.3 that would facilitate the engineering and conversion of skin cells to other types of cells with different functions. This cellular reprogramming could have major implications for the development of new therapies for diseases.

Epigenetics affect how genes are read by cells, and subsequently, how they produce proteins that help to carry out life functions. Epigenetic modifications, or changes in gene expression arising from the chemical variations in genes, can lead to cancer and other degenerative diseases. Environmental and lifestyle factors such as diet, pollution, stress and ageing can induce chemical changes in genes. This would cause genes to be switched off or on over time, often resulting in the switching of one cell state to another.

Together with the Mayo Clinic, the IMCB research team has discovered that it is possible to engineer cells for regenerative medicine in the laboratory using methods such as differentiation, reprogramming and transdifferentiation; all of which are tightly controlled by epigenetic regulators. They have found that H3.3 is a major epigenetic regulator, and can act as a master switch for gene expression to turn them off or on, thus reprogramming cell types in the process.

With these findings, the research team is currently re-engineering skin cells to induce pluripotent stem cells for use in clinical trials to treat retinal degeneration in patients. The skin cells can also be easily converted to blood stem cells with approximately three times greater efficiency. This holds great potential for treating conditions that require the transplantation of matching bone marrow, such as leukaemia.

This understanding of the role of H3.3 can help manage chronic diseases such as diabetes, heart failure, and neurodegenerative diseases and accelerate the use of stem cells in cell therapy and regenerative medicine.

This is the first study in the world on H3.3 in regards to defined factor cellular reprogramming and transdifferentiation. The study was built on previous studies focused on identifying both the effectors and roadblocks of reprogramming. The findings were published in Nature Communications on 18 April 2018.

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APBN Editorial Calendar 2018
January:
Obesity / Outlook for 2018
February:
Searching for the fountain of youth
March:
Women in Science - Making a difference
April:
Digestive health in the 21st century - Trust your guts
May:
Dental health - The root to good health
June:
Cancer - Therapies and strategies for better patient outcomes
July:
Water management - Technologies for biotech and pharmaceutical industries
August:
Regenerative technology - Meat of the future
September:
Digital healthcare / 3D printing
October:
Bones / Breast cancer
November:
Liver health / Top science research nations & institutions
December:
AIDS / Breakthrough of the year/Emerging trends
Editorial calendar is subjected to changes.
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