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Turmeric compound helps grow engineered blood vessels and tissues

A finding by UC Riverside bioengineers could hasten development of lab-grown blood vessels and other tissues to replace and regenerate damaged tissues in human patients. The results are published in ACS Applied Materials and Interfaces. Curcumin, a compound found in turmeric, has anti-inflammatory and antioxidant properties and is known to suppress angiogenesis in malignant tumors....
A finding by UC Riverside bioengineers could hasten development of lab-grown blood vessels and other tissues to replace and regenerate damaged tissues in human patients. The results are published in ACS Applied Materials and Interfaces.
Curcumin, a compound found in turmeric, has anti-inflammatory and antioxidant properties and is known to suppress angiogenesis in malignant tumors. Bioengineers at UC Riverside have now discovered that when delivered through magnetic hydrogels into stem cell cultures this versatile compound paradoxically also promotes the secretion of vascular endothelial growth factor, or VEGF, that helps vascular tissues grow.
Curcumin's possible use for vascular regeneration has been suspected for some time but has not been well studied. Huinan Liu, a bioengineering professor in UCR's Marlan and Rosemary Bourns College of Engineering, led a project to investigate curcumin's regenerative properties by coating magnetic iron oxide nanoparticles with the compound and mixing them into a biocompatible hydrogel.
When cultured with stem cells derived from bone marrow, the magnetic hydrogel gradually released the curcumin without injuring the cells. Compared to hydrogels embedded with bare nanoparticles, the group of hydrogels loaded with curcumin-coated nanoparticles showed a higher amount of VEGF secretion.
"Our study shows that curcumin released from magnetic hydrogels promotes the cells to secrete VEGF, which is one of the most critical growth factors to enhance the formation of new blood vessels," said co-author Changlu Xu, a doctoral candidate in Liu's group who focused on hydrogel research.
The researchers also took advantage of the nanoparticles' magnetism to see if they could direct the nanoparticles to desired locations in the body. They placed some of the curcumin-coated nanoparticles in a tube behind pieces of fresh pig tissue and used a magnet to successfully direct movement of the nanoparticles.
The achievement suggests the method could eventually be used to deliver curcumin to help heal or regenerate injured tissue.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as an Editor-in-Chief for the Speciality Medical Dialogues section. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Before Joining Medical Dialogues, he has served at important positions in the medical industry in India including as the Hony. Secretary of the Delhi Medical Association as well as the chairman of Anti-Quackery Committee in Delhi and worked with other Medical Councils in India. Email: editorial@medicaldialogues.in. Contact no. 011-43720751