Navigation Links
Spinal cord mass arising from neural stem cell therapy

Charlottesville, VA (July 8, 2014). A spinal mass was identified in a young woman with complete spinal cord injury 8 years after she had undergone implantation of olfactory mucosal cells in the hopes of regaining sensory and motor function. The case is reported and discussed in "Autograft-derived spinal cord mass following olfactory mucosal cell transplantation in a spinal cord injury patient. Case report," by Brian J. Dlouhy, MD, Olatilewa Awe, MD, Rajesh C. Rao, MD, Patricia A. Kirby, MD, and Patrick W. Hitchon, MD, published today online, ahead of print, in the Journal of Neurosurgery: Spine. The authors state that this is the first report of a spinal cord mass arising from spinal cord cell transplantation and neural stem cell therapy, and they caution that physicians should be vigilant in their follow-up of patients who undergo stem cell interventions.

In its natural state, the olfactory mucosa lines the roof of the nasal cavity, adjacent to the respiratory mucosa that lines the lower nasal cavity. In addition to smell receptor neurons, the olfactory mucosa contains progenitor cells (also known as adult stem cells) and olfactory ensheathing cellsboth of which have been shown to aid in the repair of the injured spinal cord in laboratory studies and in humans. The respiratory mucosa, on the other hand contains mucus-secreting goblet cells and mucus and serous fluidproducing cells.

The patient was 18 years old when she sustained a fracture dislocation at the 10th and 11th thoracic vertebral level in a motor vehicle accident. Despite surgery to stabilize the spine, the injury rendered the patient paraplegic. Three years later, in the hopes of regaining sensory and motor function in her lower limbs, the young woman underwent additional surgery at an institution outside the United States, during which an autograft of olfactory mucosa was placed in her spinal canal at the site of injury. Eight years after the experimental therapy, the woman sought medical care for mid- to lower-back pain at the University of Iowa Hospitals and Clinics. On neurological examination, she showed no sign of clinical improvement from the olfactory mucosal cell implantation, and imaging studies revealed a mass in her spinal canal pressing against the spinal cord. This mass was the source of the patient's pain.

Following surgery to remove the symptom-producing mass at the University of Iowa, a tissue analysis showed that the mass contained a small proportion of nonfunctional tiny nerve branches, whose appearance led the authors to suspect the nerve branches developed from transplanted neural stem-like cells. The tissue analysis also demonstrated that most of the mass consisted of multiple cysts lined with respiratory mucosa and underlying submucosal glands and goblet cells. Abundant mucus-like material was also found in the mass. Accumulation of this material over time produced the patient's symptoms.

The authors describe various ways of extracting olfactory mucosa cells for implantation. In this particular case, a portion of olfactory mucosa was transplanted; in other trials, olfactory ensheathing cells have been extracted from olfactory mucosa and purified prior to implantation. The authors suggest that the choice of bulk olfactory mucosa rather than purified olfactory ensheathing cells or stem cells as an autograft may lead to the development of a mass containing functional respiratory mucosal cells.

The authors point out that a rare case of spinal cord complication such as this should not discourage stem cell research and/or the transition of promising research to the clinical setting. However, the authors indicate the need for a better understanding of what can occur and urge clinicians to extend the monitoring period in patients treated with neural stem cell therapy for many years in case an adverse event such as this should arise. In summarizing the take-away message of the paper, Dr. Brian Dlouhy stated: "Exhaustive research on how transplanted cells divide, differentiate, and organize in animal models of disease, especially spinal cord injury, is critical to providing safe and effective treatments in humans."


Contact: Jo Ann Eliason
Journal of Neurosurgery Publishing Group

Related medicine news :

1. Gene therapy extends survival in large animal models of spinal muscular atrophy
2. How to increase the survival rate of motor neurons after spinal root avulsion
3. Journal of Spinal Cord Medicine names Dr. Hwang winner of Ernest Bors, M.D., Award
4. Johns Hopkins study: Traumatic spinal cord injuries on the rise in US
5. Kessler Foundation to improve home care for spinal cord injury with Department of Defense grant
6. North American Seminars Spinal Cord Injury Physical Therapy Continuing Education Course Online Receives California Approval for Physical Therapists and PTA's
7. InventHelp Inventor Designs SPINAL RECOVERY to Reduce Discomfort and Pain (DLL-2636)
8. Research Recommends Chiropractic Care for Spinal Disk Herniations Rather Than Surgery
9. Families of SMA Releases Newsletter Describing the Scientific Strategy Behind Antisense Drugs for Spinal Muscular Atrophy
10. New Residential Post-Acute Facility Specializing in Traumatic Brain Injury and Spinal Cord Injury Opens in Mount Dora; Expected to Employ 175
11. Neuro-Oncology Pioneer Who Defined Standard of Care for Brain and Spinal Tumors Joins Capital Institute for Neurosciences
Post Your Comments:
(Date:11/25/2015)... ... November 25, 2015 , ... As ... Water For Empowerment ™ attracts volunteers together who want to combine talents and ... as key stakeholders in the process. The non-profit launched its first major fundraiser ...
(Date:11/25/2015)... ... November 25, 2015 , ... Dr. John Pierce, Medical Director at the Ageless ... treatment with the Capillus272™ Pro laser therapy cap. FDA cleared for safety and efficacy, ... without the need for surgery, prescription pills, or topical foams. , “Capillus272™ Pro ...
(Date:11/25/2015)... ... November 25, 2015 , ... Lakeview Health, a Jacksonville-based drug ... their sobriety and show through pictures what a positive difference it makes. The ... with the hashtag #FacesOfGratitude on their Facebook, Twitter, and Instagram accounts. Short ...
(Date:11/25/2015)... ... ... On November 23rd 2015 Cozy Products, a division of Bird-X ... Products explains what this means for business moving forward. , The Tri Lite heater ... model: to sell personal heaters that reduce energy consumption, are economical and keep people ...
(Date:11/25/2015)... ... 2015 , ... In an ongoing Clinical Study conducted by an independent physician, ... Angel is evaluating the efficacy of its product and its disinfection protocol. This study ... from May 2014 through October 2015 at a 360-bed, acute-care, academic medical center located ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... , Nov. 25, 2015  Today AVACEN Medical announced the issue of United ... Energy Including Blood Viscosity Adjustment ". This patent shields the company,s AVACEN 100 dry heat therapy ... Method. Photo - ... ... ...
(Date:11/25/2015)... Endo International plc (NASDAQ: ENDP ) (TSX: ENL) today ... will discuss corporate updates at the 27 th Annual ... on Wednesday, December 2, 2015 at 1 p.m. ET. ... then the link to the event. Participants should allow approximately ... the site and download any streaming media software needed to ...
(Date:11/25/2015)... NEW YORK , November 25, 2015 ... global market of self-monitoring blood glucose devices was valued ... to grow with a CAGR of 5.7% during 2015 ... increasing geriatric population and increasing prevalence of diabetes. In ... about diabetes care is also contributing to the growth ...
Breaking Medicine Technology: