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Study to help develop better treatment for blood-related disorders

WebdeskSep 22, 2021, 01:35 PM IST

Study to help develop better treatment for blood-related disorders

Studies have established Drosophila or fruit fly as the ideal model system to study how blood cells develop in human beings.

 

New Delhi: Newer and better treatments could soon be on the anvil for leukaemia and other blood-related disorders, with researchers developing a new model that could give a better insight into the molecular mechanism behind their development.

Every cell in the human body and other mammals originates from stem cells and progenitor cells. Studies have established Drosophila or fruit fly as the ideal model system to study how blood cells develop in human beings.

The blood-forming organ of the fruit fly larvae is a specialized multi-lobed system called the lymph gland. Spanning from the thoracic to the abdominal segment of the larvae, this organ comprises a pair of primary, secondary, and tertiary lobes. Studies so far have mainly been confined to understanding the happenings in the primary lobe. Secondary and tertiary lobes have remained mostly unexplored. Some studies have inferred that they are composed of progenitor cells that differentiate during pupation. However, the mechanistic basis of this extended progenitor state has remained unclear.

The new study conducted by researchers at the Indian Institute of Science Education and Research (IISER) - Mohali has now filled the gap. It has shown that a local signalling system defined by two genes called Ultrabithorax (Ubx) and Collier in the tertiary lobe regulated the activities of the progenitors in the tertiary as also secondary lobes system shared several biomarkers with the local environment of the primary lobe.

Speaking to India Science Wire, the study team leader, Professor Lolitika Mandal, said, “Our study establishes the lymph gland as a model to tease out how the progenitors interface with the dual niches within an organ during development and disorders. Our work provides a model that can be used to understand how multiple niches interact with progenitors during development and disease. This will be particularly important since the blood stem cell “niche” in mammalian bone marrow has multiple niches. How diverse signals coming from multiple niches interact during development and blood-related disorders could be addressed in this testable model.”

The study team included Aditya Kanwal, Pranav Vijay Joshi, and Sudip Mandal. They have published a report on their findings in the journal `PLOS Genetics’.

Common blood disorders include anaemia, bleeding disorders such as haemophilia, blood clots, and blood cancers such as leukaemia, lymphoma, and myeloma. The new study would particularly help in dealing with blood cancers.

Courtesy: India Science Wire

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