Biomaterials-enabled cornea regeneration in patients at high risk for rejection of donor tissue transplantation

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Biomaterials-enabled cornea regeneration in patients at high risk for rejection of donor tissue transplantation

Islam, Mohammad Mirazul, 1984- (author): Linköpings universitet,Avdelningen för cellbiologi,Medicinska fakulteten,Harvard Medical School, Boston, MA USA

Buznyk, Oleksiy, 1978- (author): Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Filatov Institute of Eye Diseases and Tissue Therapy of the NAMS of Ukraine, Odessa, Ukraine

Reddy, Jagadesh C (author): Tej Kohli Cornea Institute, LV Prasad Eye Institute, Hyderabad, India

Pasyechnikova, Nataliya (author): Filatov Institute of Eye Diseases and Tissue Therapy of the NAMS of Ukraine, Odessa, Ukraine

Alarcon, Emilio I (author): Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, ON Canada

Hayes, Sally (author): School of Optometry and Vision Sciences College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK; 7Cardiff Institute for Tissue Engineering and Repair (CITER), Cardiff University, Cardiff, UK

Lewis, Philip (author): School of Optometry and Vision Sciences College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK; 7Cardiff Institute for Tissue Engineering and Repair (CITER), Cardiff University, Cardiff, UK

Fagerholm, Per, 1948- (author): Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Ögonkliniken US

He, Chaoliang (author): Key Laboratory of Polymer Eco-materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China

Iakymenko, Stanislav (author): Filatov Institute of Eye Diseases and Tissue Therapy of the NAMS of Ukraine, Odessa, Ukraine

Liu, Wenguang (author): School of Materials Science and Engineering, Tianjin University, Tianjin, China

Meek, Keith M (author): School of Optometry and Vision Sciences College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK; 7Cardiff Institute for Tissue Engineering and Repair (CITER), Cardiff University, Cardiff, UK

Sangwan, Virender S (author): Tej Kohli Cornea Institute, LV Prasad Eye Institute, Hyderabad, India

Griffith, May, 1961- (author): Linköpings universitet,Avdelningen för cellbiologi,Medicinska fakulteten,University of Montreal, Montreal, Canada

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2018-01-31
2018
English.
In: NPJ Regenerative medicine. - : Springer Science and Business Media LLC. - 2057-3995. ; 3

Related links:: https://liu.diva-por... (primary) (Raw object); show more...; https://www.nature.c...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

The severe worldwide shortage of donor organs, and severe pathologies placing patients at high risk for rejecting conventional cornea transplantation, have left many corneal blind patients untreated. Following successful pre-clinical evaluation in mini-pigs, we tested a biomaterials-enabled pro-regeneration strategy to restore corneal integrity in an open-label observational study of six patients. Cell-free corneal implants comprising recombinant human collagen and phosphorylcholine were grafted by anterior lamellar keratoplasty into corneas of unilaterally blind patients diagnosed at high-risk for rejecting donor allografts. They were followed-up for a mean of 24 months. Patients with acute disease (ulceration) were relieved of pain and discomfort within 1-2 weeks post-operation. Patients with scarred or ulcerated corneas from severe infection showed better vision improvement, followed by corneas with burns. Corneas with immune or degenerative conditions transplanted for symptom relief only showed no vision improvement overall. However, grafting promoted nerve regeneration as observed by improved touch sensitivity to near normal levels in all patients tested, even for those with little/no sensitivity before treatment. Overall, three out of six patients showed significant vision improvement. Others were sufficiently stabilized to allow follow-on surgery to restore vision. Grafting outcomes in mini-pig corneas were superior to those in human subjects, emphasizing that animal models are only predictive for patients with non-severely pathological corneas; however, for establishing parameters such as stable corneal tissue and nerve regeneration, our pig model is satisfactory. While further testing is merited, we have nevertheless shown that cell-free implants are potentially safe, efficacious options for treating high-risk patients.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kirurgi (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Surgery (hsv//eng)

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By the author/editor: Islam, Mohammad ...; Buznyk, Oleksiy, ...; Reddy, Jagadesh ...; Pasyechnikova, N ...; Alarcon, Emilio ...; Hayes, Sally; show more...; Lewis, Philip; Fagerholm, Per, ...; He, Chaoliang; Iakymenko, Stani ...; Liu, Wenguang; Meek, Keith M; Sangwan, Virende ...; Griffith, May, 1 ...; show less...

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MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Surgery

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By the university: Linköping University

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