|Year : 2015 | Volume
| Issue : 11 | Page : 1841-1845
Autologous mesenchymal stem cells applied on the pressure ulcers had produced a surprising outcome in a severe case of neuromyelitis optica
Adriana Octaviana Dulamea1, Mirela-Patricia Sirbu-Boeti1, Coralia Bleotu2, Denisa Dragu2, Lucia Moldovan3, Ioana Lupescu1, Giancarlo Comi4
1 U.M.F. Carol Davila, 8 Bulevardul Eroii Sanitari, Bucharest, Sector 2; Department of Neurology, Fundeni Clinical Institute, 258 Soseaua Fundeni, Bucharest, Sector 5, Romania
2 National Virology Institute Stefan S. Nicolau, 285 Mihai Bravu Avenue, Bucharest, Sector 3, PO 77, PO Box 201, Romania
3 National Institute of Research and Development for Biological Sciences, 296 Splaiul Independen?ei, Bucharest, Sector 6, PO Box 17-16, Romania
4 Universita Vita-Salute San Raffaele, 58 Via Olgettina, Milan, Italy
|Date of Acceptance||26-Aug-2015|
|Date of Web Publication||8-Dec-2015|
Adriana Octaviana Dulamea
U.M.F. Carol Davila, 8 Bulevardul Eroii Sanitari, Bucharest, Sector 2; Department of Neurology, Fundeni Clinical Institute, 258 Soseaua Fundeni, Bucharest, Sector 5
Source of Support: This work was supported by the Romanian Ministry of Education and Research (Research project: Alternative therapies for major tissue defects 42136/01.10.2008), Conflict of Interest: None
Recent studies provided evidence that mesenchymal stem cells (MSCs) have regenerative potential in cutaneous repair and profound immunomodulatory properties making them a candidate for therapy of neuroimmunologic diseases. Neuromyelitis optica (NMO) is an autoimmune, demyelinating central nervous system disorder characterized by a longitudinally extensive spinal cord lesion. A 46-year-old male diagnosed with NMO had relapses with paraplegia despite treatment and developed two stage IV pressure ulcers (PUs) on his legs. The patient consented for local application of autologous MSCs on PUs. MSCs isolated from the patient's bone marrow aspirate were multiplied in vitro during three passages and embedded in a tridimensional collagen-rich matrix which was applied on the PUs. Eight days after MSCs application the patient showed a progressive healing of PUs and improvement of disability. Two months later the patient was able to walk 20 m with bilateral assistance and one year later he started to walk without assistance. For 76 months the patient had no relapse and no adverse event was reported. The original method of local application of autologous BM-MSCs contributed to healing of PUs. For 6 years the patient was free of relapses and showed an improvement of disability. The association of cutaneous repair, sustained remission of NMO and improvement of disability might be explained by a promotion/optimization of recovery mechanisms in the central nervous system even if alternative hypothesis should be considered. Further studies are needed to assess the safety and efficacy of mesenchymal stem cells in NMO treatment.
Keywords: neuromyelitis optica; Devic′s syndrome; mesenchymal stem cells; multiple sclerosis; pressure ulcers
|How to cite this article:|
Dulamea AO, Sirbu-Boeti MP, Bleotu C, Dragu D, Moldovan L, Lupescu I, Comi G. Autologous mesenchymal stem cells applied on the pressure ulcers had produced a surprising outcome in a severe case of neuromyelitis optica. Neural Regen Res 2015;10:1841-5
|How to cite this URL:|
Dulamea AO, Sirbu-Boeti MP, Bleotu C, Dragu D, Moldovan L, Lupescu I, Comi G. Autologous mesenchymal stem cells applied on the pressure ulcers had produced a surprising outcome in a severe case of neuromyelitis optica. Neural Regen Res [serial online] 2015 [cited 2020 Feb 17];10:1841-5. Available from: http://www.nrronline.org/text.asp?2015/10/11/1841/165325
Adriana Octaviana Dulamea, Mirela-Patricia Sirbu-Boeti
These authors contributed equally to this work
| Introduction|| |
Mesenchymal stem cells (MSCs) are a subset of adult progenitor cells isolated from hematogenous bone marrow and tissues derived from mesoderm (Dominici et al., 2006). Experimental studies provided evidence about the effect of bone marrow mesenchymal stem cells (BMMSCs) on epidermal regeneration (McFarlin et al., 2006; Dash et al., 2009; Wu et al., 2010). Evidence from preclinical studies suggested the capacity of MSCs to inhibit pathogenic immune responses and release neuroprotective and pro-oligodendrogenic molecules favouring tissue repair (Di Nicola et al., 2002; Zhang et al., 2005, 2006; Gerdoni et al., 2007). Small clinical studies showed safety and tolerability of MSCs and stabilization or mild improvement in patients with multiple sclerosis (Karussis et al., 2010; Yamout et al., 2010; Bonab et al., 2012; Lalu et al., 2012; Llufriu et al., 2014). Neuromyelitis optica (NMO, Devic's syndrome) is an inflammatory, demyelinating central nervous system disorder characterized by concurrence of optic neuritis and myelitis in a relapsing course. A humoral autoimmune mechanism is involved, targeting aquaporin 4 channels on astrocytes resulting in demyelination and axonal injury (Wingerchuk and Weinshenker, 2008). We report the suprising outcome of local application, on pressure ulcers, of autologous BMMSCs in a case of severe NMO.
| Case Report|| |
In March 2003, a 46-year-old male without previous medical and family history presented paraesthesia and pain in both legs followed by progressive paraparesis (left leg 2/5 BMRC, right leg 3/5 BMRC). Spinal cord magnetic resonance imaging (MRI) revealed a lesion with edematous component (T2 and FLAIR hyperintensity and T1 hypointensity) at T 2-4 level, producing an increase in volume of the spinal cord and a reduction of the peri-spinal spaces, with central, ring-shape contrast enhancement corresponding to a demyelinating lesion. Brain MRI showed three small demyelinating lesions, with hyperintensity in T2 sequences, localized in the subcortical white matter of the left frontal lobe and right parietal lobe [Figure 1]. The patient tested negative for Borrelia Burgdorferi, human immunodeficiency virus, hepatitis B and C viruses. Serum angiotensin converting enzyme, antinuclear antibodies, antineutrophil cytoplasmic antibodies, anti Sm antibodies, and anti-double stranded DNA antibodies were negative. The patient refused lumbar puncture. A diagnosis of transverse myelitis was formulated. Until April 2008 the patient had three relapses: on September 2006 with paraplegia, on May 2007 with diminished visual acuity of the right eye, paraparesis (2/5 BMRC) and in November 2007 with paraplegia. After recovery from the last relapse the patient's Expanded Disability Status Scale (EDSS) score was 6.5. Visual evoked potentials (VEPs) revealed right optic neuritis. The relapses have been treated with methylprednisolone 1 g intravenously once daily for 5 days and as chronic treatment: methylprednisolone oral, followed by pulse therapy with intravenous cyclophosphamide and then oral azathioprine associated to methylprednisolone. In April 2008, the patient presented a new relapse with decreased visual acuity of the right eye and paraplegia. At the admission into the Department of Neurology of Fundeni Clinical Institute, the neurologic examination showed in the right eye disc pallor and visual accuity (corrected) 20/40 and in the left eye visual accuity corrected 20/20, paraplegia, bilateral pyramidal syndrome, superficial, vibratory and position sense hypoesthesia in right leg, anesthesia of left leg, urinary retention, with frequent urinary infections, sexual dysfunction, fatigue, anxiety, helpless bedridden patient, with no self-care (EDSS 9, Hauser Ambulation Index AI 9) and three PUs: two stage IV PUs on the lateral left malleolus (8/7 cm) and on lateral side of thigh (3 cm) respectively and a stage III PU on right calcaneum. Brain and spinal cord MRI showed hypotrophy of the spinal cord at T 2-4 level, the three subcortical lesions were still present and no new demyelinating lesions appeared [Figure 2]A-C). VEPs showed a P100 latency of 115 ms and amplitude N7-P100 of 4 µV in the right eye and a P100 latency of 112 ms and an amplitude N7-P100 of 12 µV in the left eye. Cerebrospinal fluid analysis showed 30 mg/dl protein, 52 mg/dl glucose, no oligoclonal bands and no cells. Immunofluorescence on monkey tissue (Laboraf Diagnostica e Ricerca San Raffaele Milano, Italy) disclosed the presence of NMO IgG anti-aquaporin-4 antibodies in serum sample. NMO was diagnosed based on clinical signs and course with relapses, the presence of a spinal cord MRI lesion on three vertebral segments and NMO-IgG seropositive status (Wingerchuk and Weinshenker, 2008).
|Figure 1 Magnetic resonance imaging (MRI) evaluation in 2003. |
(A-D) Intramedullary T2 weighted hyperintense expansive lesion extended between T2 and T4, with small central nodular enhancement (arrows). Rare and small demyelinating subcortical left parietal lesions (arrow)
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|Figure 2 Magnetic resonance imaging (MRI) evaluation in 2008 (A - C) and 2009 (D - F). |
(A-C) Rare and small demyelinating subcortical bilateral frontal and right parietal lesions (arrows). Hypotrophy of thoracic medulla at the level of the former lesion (arrows). (D-F) Discrete progression of the demyelinating lesions in the frontal regions (arrows). Unchanged aspect at the thoracic spinal cord (arrow)
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| Methods|| |
In order to treat the PUs, the patient was referred to the Department of General Surgery and Liver Transplantation. Cultures of wound secretions came positive for Proteus and Stafilococcus aureus. Systemic antibiotic therapy and local treatment with Sorbalgon, Atrauman Ag, and TenderWet were conducted to clean the wounds. The patient was offered a plastic surgery consultation and the possibility to choose between skin graft and local application of autologous MSCs for the treatment of PUs. He opted for the last choice.
The approval by the Ethics Committee of Fundeni Clinical Institute was obtained for application of biological dressing with autologous BMMSCs. The patient signed the written informed consent for the treatment of PUs with autologous BMMSCs. The patient was investigated to exclude any ongoing malignant disease with the standard check-up procedure used for transplanted patients. The serum tests checked for viral and oncologic status were negative.
The bone marrow aspirate was obtained from the right posterior superior iliac spina for BMMSCs isolation. Mononuclear cells were separated by centrifugation over a Biocoll gradient (Biochrom, Germany) and suspended in alpha-MEM containing 10% autologous serum and penicillin-streptomycin mixture (Biochrom, Germany), followed by plating at an initial seeding density of 1 × 10 6 /cm 2 . After 3 days, the nonadherent cells were removed and monolayers of adherent cells were cultured until confluence. Cells were trypsinized with 0.25% trypsin and subcultured at densities of 5,000-6,000 cells/cm 2 . After the first passage, the culture of MSCs became homogenous and demonstrated a high proliferation potential. The cell surface marker identification was performed by Epics XL FACS analyzer (Beckman Coulter) using fluorescein isothiocyanate (FITC) or phycoerythin (PE)-labeled monoclonal antibodies. Phenotypic characterization confirmed MSCs: CD105 + , CD90 + , CD34 - , CD45 - , CD3 - , CD14 - [Figure 3]. A normal karyotype of MSCs was confirmed. The biological dressing was made of 8 × 10 6 BM-MSCs seeded into a 30 cm 2 collagen-agarose sponge placed on a decellularized human arterial fragment using a previous protocol (Sirbu-Boeti et al., 2009).
|Figure 3 Microscopy and phenotypic characterization of the bone marrow mesenchymal stem cells culture. |
(A) Culture of bone marrow mesenchymal stem cells (BMMSCs), phase contrast × 100; (B) collagen scaffold (green autofluorescence) embedded with BMMSCs stained with propidium iodide (orange), fluorescence microscopy × 400; (C) MSCs enriched collagen-agarose sponge laid on aortic wall fragment, hematoxylin-eosin × 40; (D) phenotype of cultured undifferentiated BMMSCs; CD3- CD14- CD34- CD45- CD90+ CD105+
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Stage IV PUs were completely covered with the biological dressing.
| Results and Discussion|| |
The evolution of the wounds was followed daily for the first 2 weeks and then every 2 days for other 2 weeks. Two months later the left lateral femoral PU was completely epithelized. The healing of the left malleolar PU was completed 5 months later with normal function of ankle joint. The right calcanean PU healed with dry dressing [Figure 4].
|Figure 4 Macroscopic aspect of pressure ulcers (PUs) of the patient. |
Left lateral malleolar PU at the admission in the Department of Neurolgy before (A, B) and after the application of the biological dressing embedded with autologous bone marrow mesenchymal stem cells (BMMSCs) (C-H). Left antero-lateral thigh PU at the admission in the Department of Neurology, before (I, J) and after the application of the biological dressing embedded with autologous BMMSCs (K-P)
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Concomitent with pressure ulcers' healing the authors noticed a progressive improvement in the neurological status of the patient. Since this change was not anticipated before the procedure, topical application of MSCs being made with the intention to treat the pressure ulcers, the authors had not planned to assess the immunological status of the patient before and after the procedure.
However the neurostatus was daily recorded by the neurologist and noticed in a dairy by the patient's spouse and later by the patient himself. First a recovery of sensitivity at the treated leg occurred. Two weeks later the movements of the fingers of both legs improved. One month later the patient recovered his sensitivity for both legs, was able to move in bed by himself and to sit, the paraparesis was 3/5 BMRC for the left and right legs, but spasticity of both legs occurred. EDSS improved from 9.0 to 8.0, AI 9. At 2 months, patient's examination revealed: in the right eye disc pallor and visual acuity 20/40, in the left leg BMRC 3 for hip flexors, knee flexors and extensors, plantar flexion and extension, in the right leg BMRC 3 for hip flexors, BMRC 2 for knee flexors and extensors, BMRC 2 for plantar flexion and extension, spasticity of both legs, moderate limb ataxia of both legs, moderate decrease of superficial and mild decrease of vibration sense of left leg, urinary retention, fatigue and the patient was able to walk 5 meters with constant bilateral assistance (EDSS 7.0, AI 7). At four months neurologic examination showed: in the right eye disc pallor and visual acuity 20/40, superficial hypoesthesia on left leg, paraparesis (left leg BMRC 3/5, right leg BMRC 4/5), spasticity on flexors of the left inferior limb, no ataxia, 40 meters ambulation with constant bilateral assistance (EDSS 6.5, AI 6). Eight months later the patient was ambulatory with unilateral assistance (cane) for 150 m without rest (EDSS 6.0, AI 4). In May 2009, at 11 months, brain and spinal cord MRI showed some new T2 lesions in the frontal regions and unchanged aspect at thoracic spinal cord [Figure 2]D-F). VEPs and optic nerve MRI were not performed. At 12 months the patient was ambulatory without aid or rest for more than 300 m, EDSS 4.5, AI 3. At 32 months the patient was able to ride bicycle and to shovel snow (EDSS 3.5, AI 2). At 76 months after MSCs therapy the patient was free of relapse, with EDSS 3.5, AI 2, needs only 4 mg methylprednisolone every other day and had negative malignancy screening. [Figure 5] and Supplementary Video online illustrate the neurological evolution of the patient.
|Figure 5 Neurological evolution of the patient after local biological dressing with mesenchymal stem cells (MSCs) culture. |
(A) and (B) neurostatus after 2 months: EDSS = 7, AI = 7, (C) neurostatus after 5 months: EDSS = 6.0, AI = 4, (D) neurostatus after 12 months: EDSS = 4.5, AI = 3. AI: Hauser Ambulation Index; EDSS: Expanded Disability Status Scale
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The successful healing of both PUs was expected. Other studies reported rapid wound healing with reduced scarring after administration of mesenchymal stem cells. They showed that MSCs stimulate angiogenesis and induce fibroblast migration due to a paracrine effect (Rodriguez-Menocal et al., 2015). The innovation consisted in the application of BM-MSCs embedded in a collagen-agarose sponge that has the advantage of alleviating the cell damage which is associated with injection barotrauma and avoiding the side effects secondary to other administration routes (e.g., intravenous, intra-arterial).
However the spectacular and long-term improvement of disability cannot be explained only by healing of PUs since the patient was paraplegic long before the development of PUs.
Several studies showed that mesenchymal stem cells modulate the innate and adaptive immunity mostly through the secretion of paracrine factors ("bystander effect") (Krampera et al., 2006; Karussis et al., 2008; Uccelli et al., 2011; Keating, 2012).
In our case, a possible explanation of the improvement of disability secondary to the local application of BMMSCs on PUs might be that local inflammation facilitated the migration of BMMSCs into the peripheral lymph nodes producing a peripheral immunomodulation since the recovery lasted. An alternative explanation for the partial remission could be the absence of further relapses. However the interpretation of the outcome must be made with caution since, appart from the neurological evolution of the patient, we do not have other arguments to sustain that the long term remission was a consequence of the local application of mesenchymal stem cells.
| Conclusions|| |
This is the first report of topical application of a biological dressing embedded with autologous in vitro expanded BMMSCs in an NMO patient with stage IV PUs that accelerated the healing of PUs and was associated with a spectacular and long term improvement of patient's disability (from EDSS 9 to EDSS 3.5). This curious association could be explained by a promotion / optimization of recovery mechanisms in the central nervous system even if alternative hypothesis should be considered. Further studies are needed in order to assess the safety and efficacy of mesenchymal stem cells in NMO treatment.
Acknowledgments: We thank Mr. Stefan Constantinescu and Mrs. Melania Dulamea for preparing the movie and figures of the paper and Mrs. Monica Marinescu for the proofreading of the English version of the paper.
Conflicts of interest: None declared.
Supplementary data: Supplementary information is available at http://www.nrronline.org.
Plagiarism check: This paper was screened twice using CrossCheck to verify originality before publication.
Peer review: This paper was double-blinded, stringently reviewed by international expert reviewers.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5]