Navigation Links
From the dust -- mixing stem cells with clay to regenerate human tissue
Date:5/2/2014

Gels made from clay could provide an environment that would stimulate stem cells to regenerate damaged tissues such as bone, skin, heart, spinal cord, liver, pancreas and cornea.

Researchers at the University of Southampton believe that clay particles' ability to bind to biological molecules could be used to stimulate the stem cell regeneration process.

Dr Jon Dawson, who is leading the research, explains: "Clay particles encourage molecules to bind to them. This interaction is now routinely harnessed in the design of tablets to carefully control the release and action of a drug. We will use this mechanism to see if we can encourage stem cells to grow new tissue."

The project, funded by a 1.4m grant from the Engineering and Physical Sciences Research Council (EPSRC), aims to create tailormade micro-environments to foster stem cell regeneration. The team will use clay gels both to explore the biological signals necessary to successfully control stem cell behaviour for regeneration and also to provide stem cells with signals to stimulate regeneration in the body.

The approach will first be applied to regenerate bone lost to cancer or hip replacement failure. If successful the same technology may be applied to harness stem cells for the treatment of a whole host of different scenarios, from burn victims to those suffering with diabetes or Parkinson's.

Dr Dawson will be working with Professor Richard Oreffo of the Bone and Joint Research Group at the University of Southampton to explore the application of this technology in orthopaedics. "Fractures and bone loss due to trauma or disease are a significant clinical and socioeconomic problem," Dr Dawson comments. "Clay particles could offer an improved way of stimulating stem cells at the point of injury, which will be better for the patient's recovery."

Dr Dawson believes that the rich electrostatic properties of nano scale clay particles, which are one millionth of a millimetre, could overcome two challenges in the development of stem-cell based regenerative therapies.

The first challenge to deliver and hold stem cells at the right location in the body would be met by the ability of clay to self-organise into gels via the electrostatic interactions of the particles with each other. Cells mixed with a low concentration of clay particles gelled in water, can be injected into the body and held in the right place by the gel, eliminating, in many situations, the need for surgery.

Clay particles can also interact with large structural molecules (polymers) which are frequently used in the development of scaffolds, which stem cells grow on. These interactions can greatly improve the scaffold's strength and could be applied to preserve their stability at the site of injury until regeneration is complete.

While several gels and scaffold materials have been designed to deliver and hold stem cells at the site of regeneration, the ability of clay nanoparticles to overcome a second critical hurdle facing stem-cell therapy is what makes them especially exciting.

Dr Dawson says: "The carefully controlled provision of key biological signalling molecules is essential to directing the activity of stem-cells. However, conventional injectable gel materials are often poor at retaining these biological signals at the site of injury they can hold and deliver cells, but the molecules that stimulate the cells diffuse away when placed in the body. The ability of clay nanoparticles to bind biological molecules presents a unique opportunity to control the local environment at a site of injury or disease to stimulate and control stem-cell driven repair. This is something we are very excited about."


'/>"/>

Contact: Becky Attwood
r.attwood@soton.ac.uk
44-023-805-92116
University of Southampton
Source:Eurekalert  

Related medicine news :

1. Water-based engine propels tumor cells through tight spaces in the body
2. UNC researchers discover master regulator role for little-known protein in cancer cells
3. Brain tumor cells penetrated by tiny, degradable particles carrying genetic instructions
4. A civil war inside our cells: Scientists show how our bodies fight off jumping genes
5. Scientists find way to target cells resistant to chemo
6. Boring cells could hold the key to heart disease
7. Following a proteins travel inside cells is key to improving patient monitoring, drug development
8. Dustman protein helps bin cancer cells
9. Efficient analysis of small quantity of cells improves chances to understand disease
10. New human trial shows stem cells are effective for failing hearts
11. Plasma tool for destroying cancer cells
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
From the dust -- mixing stem cells with clay to regenerate human tissue
(Date:12/2/2016)... ... December 02, 2016 , ... With the number of pain management programs ... patients must find the one that works for them. When an inventor from Suisun ... that worked and decided to share it with others. , He developed a prototype ...
(Date:12/2/2016)... ... December 02, 2016 , ... Dr. Raffi Hovsepian, a leading ... the 2016 “Guide to America’s Top Plastic Surgeons” for seven consecutive years. The ... education, experience, and professional associations. , One the most frequently honored surgeons ...
(Date:12/2/2016)... ... 2016 , ... Mediaplanet is proud to announce the launch ... innovative treatments, therapeutic technologies, and revolutionized nutrition that are helping patients and physicians ... years in the last 3 decades,” says Dr. Valentine Fuster, a world-renowned cardiologist. ...
(Date:12/2/2016)... ... December 02, 2016 , ... The PAINWeekEnd Regional Conference will ... Spa in Honolulu, offering local frontline clinicians the opportunity to extend their certified ... demand for supplemental training related to pain management has surged dramatically in recent ...
(Date:12/2/2016)... ... December 02, 2016 , ... Sourced from the Isbre Springs beneath the 5,000 ... unmatched natural purity of just 6 ppm TDS (Total Dissolved Solids) in addition to ... been available in several ShopRite and FoodTown stores in NJ and received rave comments ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... -- Lianluo Smart Limited (Nasdaq: LLIT ... markets and sells medical devices and wearable sleep ... and international markets, recently attended the 2016 Guangdong ... Forum, co-hosted by the Institute of Interventional Cardiology ... Provincial People,s Hospital and Cardiology Department of Guangdong ...
(Date:12/2/2016)... Dec. 1, 2016 The concept of rare diseases ... given to this sector has been taking shape in ... the political aspects and initiatives related to orphan medicinal products ... the level of member states individually. Many member states in ... the space of orphan medicinal products, the result of which ...
(Date:12/2/2016)... Dec. 2, 2016 Allergan plc (NYSE: ... information on its previously announced Accelerated Share Repurchase (ASR) Program. ... ... As previously announced, the Company entered into a ... the Company will repurchase $10 billion of its ordinary shares. ...
Breaking Medicine Technology: