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UCF Researchers Develop Nano-based Technology to Fight Osteoporosis – UCF

December 7, 2022 by Technology

University of Central Florida scientists have actually developed special innovation for treating osteoporosis that uses nanobubbles to deliver treatment to targeted locations of a person’s body.

The brand-new technology was developed by Mehdi Razavi, an assistant teacher in UCF’s College of Medicine and a member of the Biionix Cluster at UCF, and UCF biomedical sciences student Angela Shar at the Biomaterials and Nanomedicine Laboratory, as part of the lab’s concentrate on establishing tools for diagnostics and therapeutics.

Osteoporosis is an illness marked by an imbalance between the body’s ability to form brand-new bone tissue, or ossification, and break down, or remove, old bone, known as resorption.

According to the Bone Health & & Osteoporosis Structure (BHOF), research studies recommend that a person in 2 ladies and up to one in 4 males aged 50 and older will break a bone due to osteoporosis. Also, experts forecast that by 2025, osteoporosis will be responsible for about 3 million fractures and $25.3 billion in expenses yearly.

Mehdi Razavi is an assistant professor in UCF’s College of Medication and a member of the Biionix Cluster at UCF.

Razavi states that a healthy body continually changes old or broken bone tissue at a steady rate to guarantee good bone quality and mass.

“But when the rate of bone resorption becomes greater than bone development, then it leads to osteoporosis, a systemic illness of the skeletal system,” he states.

Numerous osteoporosis treatments today use drugs such as bisphosphonates to inhibit bone resorption. Adverse effects can consist of jaw osteonecrosis (postponed recovery of the jawbone) and intestinal problems.

The UCF innovation, however, utilizes ultrasound-responsive nanobubbles to provide treatment to targeted areas of an individual’s body.

“There are a great deal of nanoplatforms out there for osteoporosis treatment,” Razavi states. “However the advantage of ultrasound-responsive nanobubbles is that they require ultrasound for bubble disruption and gene delivery. Ultrasound itself can really assist in bone development.”

A viable, safe alternative, the UCF development both treats and avoids the effects of osteoporosis.

“It is a dual-acting innovation,” Razavi states. “On one side, you are reducing bone resorption, and on the other side, you are increasing bone development utilizing ultrasound.”

In one example application, the nanobubbles bring the osteoporosis-related silencing or knockdown gene, cathepsin K little interfering ribonucleic acid (CTSK siRNA).

Razavi says that the nanobubbles both protect the siRNA from directly interacting with its environments and targets osteoclast cells, which are the bone cells that bring the CTSK gene. CTSK is a key player in the bone resorption procedure.

“So, we downregulate, decrease high expression of those [bone resorption] genes using the siRNA,” he says.

He added that the shipment system also helps to slow the release of the treatment and prolong the gene silencing system’s effectiveness.

Each nanobubble encapsulates the treatment in a gas core and liquid shell made from perfluorocarbon.

“The gas core assists us to image and track the nanobubbles,” Razavi says. “It’s likewise embedded with molecules that can target bone.”

“The bubbles enter into the bone cells, search and discover those genes that cause osteoporosis, and they bury the CTSK siRNA which then creates a complex,” he states. “That complex is thermodynamically unsteady, and that will result in a sort of downregulation or silencing of those genes. When you measure for cathepsin K expression, you get a lower expression of that.”

For managed, consecutive release and customized treatment (for instance, low strength for shallow fractures versus high intensity for deep lesions) the ultrasound criteria can be customized, including direct exposure time, intensity, frequency, and waveform.

Razavi mentioned other uses for the innovation.

“You can utilize this for cancer and other applications, like neurodegenerative diseases such as Alzheimer’s,” he says.

One advantage of nanobubbles over microbubbles is their capability to go through the cell membrane to provide therapies.

“Ultrasound can really open the blood-brain barrier to assist in the migration of the nanobubbles into the neural cells for gene shipment,” he says.

Chemo-therapeutic drugs can be encapsulated into the bubbles and after that injected to target growths. Likewise, because these bubbles have a gas core, they can deliver oxygen.

“One option here is to deliver oxygen into the tissue to assist in regeneration,” he says. “We are looking for approaches that might be internationally deployed, are non-invasive, extensively offered, portable, and inexpensive.”

The technology is available for license. For more information about the creation, see the UCF nanobubble technology sheet.

Publications

A novel ultrasound-mediated nanodroplet-based gene delivery system for osteoporosis treatment, Nanomedicine. 2022 Apr; 41:102530. doi: 10.1016/ j.nano.2022.102530. Epub 2022 Jan 30. PMID: 35104672.

Source: https://news.google.com/__i/rss/rd/articles/CBMiXWh0dHBzOi8vd3d3LnVjZi5lZHUvbmV3cy91Y2YtcmVzZWFyY2hlcnMtZGV2ZWxvcC1uYW5vLWJhc2VkLXRlY2hub2xvZ3ktdG8tZmlnaHQtb3N0ZW9wb3Jvc2lzL9IBYWh0dHBzOi8vd3d3LnVjZi5lZHUvbmV3cy91Y2YtcmVzZWFyY2hlcnMtZGV2ZWxvcC1uYW5vLWJhc2VkLXRlY2hub2xvZ3ktdG8tZmlnaHQtb3N0ZW9wb3Jvc2lzLz9hbXA?oc=5

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