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Beerepoot S, Boelens JJ, Lindemans C, de Witte MA, Nierkens S, Vrancken AFJE, van der Knaap MS, Bugiani M, Wolf NI. Progressive demyelinating polyneuropathy after hematopoietic cell transplantation in metachromatic leukodystrophy: a case series. J Neurol 2024; 271:4028-4038. [PMID: 38564053 PMCID: PMC11233286 DOI: 10.1007/s00415-024-12322-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/05/2024] [Accepted: 03/10/2024] [Indexed: 04/04/2024]
Abstract
Metachromatic leukodystrophy (MLD) is a neuro-metabolic disorder due to arylsulfatase A deficiency, causing demyelination of the central and peripheral nervous system. Hematopoietic cell transplantation (HCT) can provide a symptomatic and survival benefit for pre-symptomatic and early symptomatic patients by stabilizing CNS disease. This case series, however, illustrates the occurrence of severely progressive polyneuropathy shortly after HCT in two patients with late-infantile, one with late-juvenile, and one with adult MLD, leading to the inability to walk or sit without support. The patients had demyelinating polyneuropathy before HCT, performed at the ages of 2 years in the first two patients and at 14 and 23 years in the other two patients. The myeloablative conditioning regimen consisted of busulfan, fludarabine and, in one case, rituximab, with anti-thymocyte globulin, cyclosporine, steroids, and/or mycophenolate mofetil for GvHD prophylaxis. Polyneuropathy after HCT progressed parallel with tapering immunosuppression and paralleled bouts of infection and graft-versus-host disease (GvHD). Differential diagnoses included MLD progression, neurological GvHD or another (auto)inflammatory cause. Laboratory, electroneurography and pathology investigations were inconclusive. In two patients, treatment with immunomodulatory drugs led to temporary improvement, but not sustained stabilization of polyneuropathy. One patient showed recovery to pre-HCT functioning, except for a Holmes-like tremor, for which a peripheral origin cannot be excluded. One patient showed marginal response to immunosuppressive treatment and died ten months after HCT due to respiratory failure. The extensive diagnostic and therapeutic attempts highlight the challenge of characterizing and treating progressive polyneuropathy in patients with MLD shortly after HCT. We advise to consider repeat electro-neurography and possibly peripheral nerve biopsy in such patients. Nerve conduction blocks, evidence of the presence of T lymphocytes and macrophages in the neuronal and surrounding nerve tissue, and beneficial effects of immunomodulatory drugs may indicate a partially (auto)immune-mediated pathology. Polyneuropathy may cause major residual disease burden after HCT. MLD patients with progressive polyneuropathy could potentially benefit from a more intensified immunomodulatory drug regime following HCT, especially at times of immune activation.
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Affiliation(s)
- Shanice Beerepoot
- Amsterdam UMC, Department of Child Neurology, Amsterdam Leukodystrophy Center, Emma's Children's Hospital, VU University, Amsterdam, The Netherlands
- Neuroscience, Cellular & Molecular Mechanisms, VU University, Amsterdam, The Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Jaap Jan Boelens
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Pediatrics, Stem Cell Transplant and Cellular Therapies, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Caroline Lindemans
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Regenerative Medicine Institute, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Moniek A de Witte
- Department of Hematology, University Medical Center, Utrecht, The Netherlands
| | - Stefan Nierkens
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Alexander F J E Vrancken
- Department of Neurology, Brain Centre University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Marjo S van der Knaap
- Amsterdam UMC, Department of Child Neurology, Amsterdam Leukodystrophy Center, Emma's Children's Hospital, VU University, Amsterdam, The Netherlands
- Neuroscience, Cellular & Molecular Mechanisms, VU University, Amsterdam, The Netherlands
- Department of Functional Genomics, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, The Netherlands
| | - Marianna Bugiani
- Neuroscience, Cellular & Molecular Mechanisms, VU University, Amsterdam, The Netherlands
- Amsterdam UMC, Department of Pathology, VU University Amsterdam, Amsterdam, The Netherlands
| | - Nicole I Wolf
- Amsterdam UMC, Department of Child Neurology, Amsterdam Leukodystrophy Center, Emma's Children's Hospital, VU University, Amsterdam, The Netherlands.
- Neuroscience, Cellular & Molecular Mechanisms, VU University, Amsterdam, The Netherlands.
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Yap TA, Daver N, Mahendra M, Zhang J, Kamiya-Matsuoka C, Meric-Bernstam F, Kantarjian HM, Ravandi F, Collins ME, Francesco MED, Dumbrava EE, Fu S, Gao S, Gay JP, Gera S, Han J, Hong DS, Jabbour EJ, Ju Z, Karp DD, Lodi A, Molina JR, Baran N, Naing A, Ohanian M, Pant S, Pemmaraju N, Bose P, Piha-Paul SA, Rodon J, Salguero C, Sasaki K, Singh AK, Subbiah V, Tsimberidou AM, Xu QA, Yilmaz M, Zhang Q, Li Y, Bristow CA, Bhattacharjee MB, Tiziani S, Heffernan TP, Vellano CP, Jones P, Heijnen CJ, Kavelaars A, Marszalek JR, Konopleva M. Complex I inhibitor of oxidative phosphorylation in advanced solid tumors and acute myeloid leukemia: phase I trials. Nat Med 2023; 29:115-126. [PMID: 36658425 DOI: 10.1038/s41591-022-02103-8] [Citation(s) in RCA: 112] [Impact Index Per Article: 112.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 10/21/2022] [Indexed: 01/21/2023]
Abstract
Although targeting oxidative phosphorylation (OXPHOS) is a rational anticancer strategy, clinical benefit with OXPHOS inhibitors has yet to be achieved. Here we advanced IACS-010759, a highly potent and selective small-molecule complex I inhibitor, into two dose-escalation phase I trials in patients with relapsed/refractory acute myeloid leukemia (NCT02882321, n = 17) and advanced solid tumors (NCT03291938, n = 23). The primary endpoints were safety, tolerability, maximum tolerated dose and recommended phase 2 dose (RP2D) of IACS-010759. The PK, PD, and preliminary antitumor activities of IACS-010759 in patients were also evaluated as secondary endpoints in both clinical trials. IACS-010759 had a narrow therapeutic index with emergent dose-limiting toxicities, including elevated blood lactate and neurotoxicity, which obstructed efforts to maintain target exposure. Consequently no RP2D was established, only modest target inhibition and limited antitumor activity were observed at tolerated doses, and both trials were discontinued. Reverse translational studies in mice demonstrated that IACS-010759 induced behavioral and physiological changes indicative of peripheral neuropathy, which were minimized with the coadministration of a histone deacetylase 6 inhibitor. Additional studies are needed to elucidate the association between OXPHOS inhibition and neurotoxicity, and caution is warranted in the continued development of complex I inhibitors as antitumor agents.
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Affiliation(s)
- Timothy A Yap
- Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Naval Daver
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mikhila Mahendra
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jixiang Zhang
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Carlos Kamiya-Matsuoka
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hagop M Kantarjian
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Farhad Ravandi
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Meghan E Collins
- Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX, USA
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Maria Emilia Di Francesco
- Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ecaterina E Dumbrava
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Siqing Fu
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sisi Gao
- Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jason P Gay
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sonal Gera
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jing Han
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - David S Hong
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Elias J Jabbour
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Zhenlin Ju
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Daniel D Karp
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alessia Lodi
- Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX, USA
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Jennifer R Molina
- Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Natalia Baran
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Aung Naing
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Maro Ohanian
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Shubham Pant
- Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Naveen Pemmaraju
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Prithviraj Bose
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sarina A Piha-Paul
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jordi Rodon
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Carolina Salguero
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Koji Sasaki
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Anand K Singh
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Vivek Subbiah
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Apostolia M Tsimberidou
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Quanyun A Xu
- Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Musa Yilmaz
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Qi Zhang
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yuan Li
- Department of Biostatistics and Data Science, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Christopher A Bristow
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Meenakshi B Bhattacharjee
- Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Stefano Tiziani
- Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX, USA
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
- Department of Oncology, Dell Medical School, Livestrong Cancer Institutes, The University of Texas at Austin, Austin, TX, USA
| | - Timothy P Heffernan
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Christopher P Vellano
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Philip Jones
- Institute for Applied Cancer Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Cobi J Heijnen
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Psychological Sciences, Rice University, Houston, TX, USA
| | - Annemieke Kavelaars
- Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Joseph R Marszalek
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Marina Konopleva
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Lehky T, Fernandez IP, Krakow EF, Connelly-Smith L, Salit RB, Vo P, Oshima MU, Onstad L, Carpenter PA, Flowers ME, Lee SJ. Neuropathy and Muscle Cramps in Autologous and Allogeneic Hematopoietic Cell Transplantation Survivors. Transplant Cell Ther 2022; 28:608.e1-608.e9. [PMID: 35718343 PMCID: PMC9427724 DOI: 10.1016/j.jtct.2022.06.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/15/2022]
Abstract
Although autologous and allogeneic hematopoietic cell transplantation are used to treat hematologic diseases, they are associated with high morbidity and mortality. The goal of this cross-sectional study was to describe the incidence, characteristics, severity and clinical correlates of neuropathy and muscle cramps, as self-reported by hematopoietic cell transplantation survivors. We included all respondents to a survey conducted July 1, 2020, to June 30, 2021. Surveys were completed online or on-paper according to participants' preferences; they received one reminder if no survey was received 1 month after distribution. Statistics are primarily descriptive comparing subgroups of patients. Of 4641 potentially eligible patients, 1745 responded and are included in the analysis. Participants (615 [35%] autologous, 1130 [65%] allogeneic) were a median age of 64.1 years (interquartile range [IQR] 55.2-70.8) and surveyed at a median of 11 years (IQR 4-21) after their most recent transplantation. Neuropathy symptoms were reported by 65% of autologous recipients, 66% of allogeneic transplant recipients with current chronic graft versus host disease (GVHD), and 45% of allogeneic recipients who never developed chronic GVHD. Muscle cramps were reported by 56% of autologous recipients, and 52% of allogeneic recipients and were rated as "very painful" by nearly half of patients who experienced them. These results suggest that neuropathy symptoms and muscle cramps are much more prevalent among survivors after hematopoietic cell transplantation than previously recognized. Better approaches for prevention and treatment of these bothersome complications are needed.
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Affiliation(s)
- Tanya Lehky
- Electromyography Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
| | - Iago Pinal Fernandez
- Muscle Disease Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health. Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Elizabeth F Krakow
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Laura Connelly-Smith
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Rachel B Salit
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Phuong Vo
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Masumi Ueda Oshima
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Lynn Onstad
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Paul A Carpenter
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Mary E Flowers
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington
| | - Stephanie J Lee
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Medical Oncology, University of Washington, Seattle, Washington.
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Faraci M, Dell'Orso G, Giardino S, Pierri F. Autoimmune diseases after allogeneic stem cell transplantation: a clinician's guide and future outlook. Expert Rev Clin Immunol 2022; 18:1-14. [PMID: 35500169 DOI: 10.1080/1744666x.2022.2072299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/27/2022] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Autoimmune disease (AD) may occur after allogeneic hematopoietic stem cell transplantation (HSCT). The autoimmune mechanism seems to be related to an imbalance of the immune regulation effect of T-regulatory lymphocytes on autoreactive T-lymphocytes. AREAS COVERED ADs include hematological ADs (HADs) and nonhematologic ADs (NHADs) involving organs such as thyroid, peripheral and central nervous system, skin, liver, connective tissue, gastrointestinal tract, and kidney. To identify the risk factors for ADs, to report their clinical characteristics, and to discuss new approaches represent the areas covered in this review. EXPERT OPINION Some risk factors for HAD and NHAD are common and include nonmalignant diseases, young age, cord blood as a stem cell source, conditioning regimens without total body irradiation, alemtuzumab, antithymocyte globulin, T-cell-depleted transplant, some viral infection, mixed chimerism, and chronic Graft versus Host Disease. In NHADs, the detection of autoantibodies is more frequent and the transfer of autoimmunity from the donor to the recipient represents the pathogenetic mechanism responsible for these complications. New therapeutic approaches such as bortezomib, daratumumab, sirolimus, eculizumab, and eltrombopag appear to be promising in terms of better efficacy and reduced toxicity compared to traditional therapies. New horizons based on personalized therapies will allow us to improve the prognosis of AD.
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Affiliation(s)
- Maura Faraci
- Hematopoietic Stem Cell Unit, Department of Hematology-Oncology, IRCSS Istituto G. Gaslini I Istituto GGaslini, Genova, Italy
| | - Gianluca Dell'Orso
- Hematopoietic Stem Cell Unit, Department of Hematology-Oncology, IRCSS Istituto G. Gaslini I Istituto GGaslini, Genova, Italy
| | - Stefano Giardino
- Hematopoietic Stem Cell Unit, Department of Hematology-Oncology, IRCSS Istituto G. Gaslini I Istituto GGaslini, Genova, Italy
| | - Filomena Pierri
- Hematopoietic Stem Cell Unit, Department of Hematology-Oncology, IRCSS Istituto G. Gaslini I Istituto GGaslini, Genova, Italy
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Wilkinson M, Yeung D, Limaye V. A case of inflammatory myopathy in graft vs host disease - A potential role for ibrutinib. Neuromuscul Disord 2021; 31:865-869. [PMID: 34334272 DOI: 10.1016/j.nmd.2021.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/19/2021] [Accepted: 06/29/2021] [Indexed: 11/30/2022]
Abstract
Myositis is a known complication of chronic graft-vs-host disease (cGVHD) following allogeneic haematopoietic stem cell transplantation, but can be difficult to diagnose and manage. We present the case of a 57 year old man with cGVHD in whom the full manifestations of myositis were suppressed for some time, likely due to partial treatment of his condition with immunosuppression including ibrutinib. Though initial muscle biopsy showed necrotising myopathy without significant inflammation, on cessation of ibrutinib he developed increasing weakness and creatine kinase levels, with repeat muscle biopsy showing histological changes more in keeping with dermatomyositis. The close temporal correlation of his clinical course with commencement and cessation of ibrutinib suggests a potential role for ibrutinib in treating inflammatory myopathy in cGVHD.
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Affiliation(s)
- Michael Wilkinson
- Advanced Trainee, General and Acute Care Medicine, Royal Adelaide Hospital, Associate Clinical Lecturer, University of Adelaide, Australia.
| | - David Yeung
- Consultant Haematologist, Royal Adelaide Hospital, Postdoctoral Research Fellow, University of Adelaide, Australia
| | - Vidya Limaye
- Consultant Rheumatologist, Royal Adelaide Hospital, Associate Professor of Rheumatology, Discipline of Medicine, University of Adelaide, Australia
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Limaye S, Limaye V. Clinical Characteristics of Myositis Associated with Graft-Versus-Host Disease. Curr Rheumatol Rep 2021; 23:30. [PMID: 33893887 DOI: 10.1007/s11926-021-00996-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW Recipients of allogeneic hematopoietic stem cell transplantation (HSCT) are at increased risk for inflammatory myositis; histological subsets reported include dermatomyositis, necrotising myopathy and chronic graft-versus-host disease (cGVHD)-related myositis. Though corticosteroids and various immunosuppressive therapies have been used, there is a lack of consensus guidelines dictating therapy. RECENT FINDINGS Recent evidence suggests the fascia as a preferential target in cGVHD myositis, with conditioning regimens promoting fascial microtrauma. Positron emission tomography (PET) can be a useful diagnostic tool, and case reports suggest that the Bruton's tyrosine kinase inhibitor ibrutinib may have therapeutic potential. Emerging therapies include targeted B cell depletion with rituximab, and extracorporeal photophoresis. Clinicians need to be vigilant for the development of inflammatory myositis post-allogeneic HSCT as most patients respond to treatment. Advances in immunohistochemistry to determine the dominant cell type and cytokine profile may enable targeted and individualised therapies.
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Affiliation(s)
- Sandhya Limaye
- Department of Immunology, Concord Hospital, Hospital Road, Concord, NSW, 2139, Australia.,Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Vidya Limaye
- Department of Rheumatology, Royal Adelaide Hospital, Port Road, Adelaide, SA, 5000, Australia. .,Discipline of Medicine, University of Adelaide, Adelaide, Australia.
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Saw JL, Sidiqi MH, Mauermann ML, Alkhateeb H, Naddaf E. Immune-mediated neuromuscular complications of graft-versus-host disease. Muscle Nerve 2021; 63:852-860. [PMID: 33651380 DOI: 10.1002/mus.27214] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 02/20/2021] [Accepted: 02/27/2021] [Indexed: 12/11/2022]
Abstract
INTRODUCTION/AIMS We aimed to describe the clinical phenotype, histopathological findings and overall survival (OS) of the immune-mediated neuromuscular complications of graft-versus-host disease (GVHD). METHODS We conducted a retrospective chart review of adult patients presenting with immune-mediated neuromuscular complications of GVHD to Mayo Clinic, between April 2013 and July 2018.We collected clinical and laboratory characteristics, histopathological findings, response to treatment and survival data. RESULTS We identified 20 patients with a mean age at presentation of 55 y. Mean time from transplant to neurological presentation was 14 mo. Myositis was the most common complication seen in 17 patients, manifesting with predominantly axial and/or proximal weakness. Eleven patients had a muscle biopsy showing diffuse perimysial, predominantly macrophagic infiltration in 10, 3 of them with perimysial perivascular lymphocytic collections, and endomysial and perimysial lymphocytic infiltration in 1. Only two patients had a neuropathic complication: one each with acute inflammatory demyelinating polyradiculoneuropathy and neuralgic amyotrophy. A single patient had a myasthenic syndrome presenting with fluctuating foot drop. Nineteen patients were treated and all responded to immunosuppressive agents; however, 11 had further GVHD flares requiring escalation of therapy. After a median follow-up of 83 mo, seven (35%) patients died: five from progressive GVHD and two from infections. The 5-y OS from time of transplant was 68%. DISCUSSION Myositis is the most common immune-mediated neuromuscular complication of GVHD while peripheral neuropathy and myasthenic syndromes appear less common. The macrophage-predominant infiltration on muscle biopsy deserves further study to better clarify the role of macrophages in GVHD pathogenesis.
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Affiliation(s)
- Jacqui-Lyn Saw
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - M Hasib Sidiqi
- Department of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Hassan Alkhateeb
- Department of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Elie Naddaf
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
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Chronic Graft-Versus-Host-Disease-Related Polymyositis: a 17-Months-Old Child with a Rare and Late Complication of Haematopoietic Stem Cell Transplantation. Mediterr J Hematol Infect Dis 2020; 12:e2020002. [PMID: 31934312 PMCID: PMC6951354 DOI: 10.4084/mjhid.2020.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/14/2019] [Indexed: 12/03/2022] Open
Abstract
Background Chronic graft versus host disease (cGVHD) occurs in 20–30% of paediatric patients receiving haemopoietic stem cell transplantation (HSCT). Neuromuscular disorders such as polymyositis are considered a rare and distinctive but non-diagnostic manifestation of cGVHD and, in the absence of other characteristic signs and symptoms, biopsy is highly recommended to exclude other causes. Case report We report a case of a 17-months-old child affected by hemophagocytic lymphohistiocytosis who underwent a matched unrelated donor haematopoietic stem cell transplantation (HSCT). She developed severe cGVHD-related polymyositis that was successfully treated with high-dose steroid therapy, rituximab and sirolimus. Conclusions This is the first case of cGVHD-related-polymyositis described in a pediatric patient which was successfully treated with rituximab.
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9
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Gavriilaki M, Mainou M, Gavriilaki E, Haidich AB, Papagiannopoulos S, Sakellari I, Anagnostopoulos A, Kimiskidis V. Neurologic complications after allogeneic transplantation: a meta-analysis. Ann Clin Transl Neurol 2019; 6:2037-2047. [PMID: 31560177 PMCID: PMC6801165 DOI: 10.1002/acn3.50909] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 09/09/2019] [Indexed: 12/29/2022] Open
Abstract
Objective Neurologic adverse events remain challenging complications with poor morbidity and mortality post adult allogeneic hematopoietic cell transplantation (allo‐HCT) for hematologic diseases. We conducted a systematic review and meta‐analysis to determine their spectrum, incidence, and impact on survival. Methods We searched MEDLINE, COCHRANE, EMBASE through March 2019 for all types of primary studies. Two independent reviewers screened, extracted data, and assessed risk of bias (RoB). Results We identified 552 eligible studies describing 57.972 patients; one randomized controlled trial, two case–control, 17 prospective, 86 retrospective cohort studies, 21 case series, and 425 case reports. RoB ranged from fair to high although case series were low‐risk. The majority of studies traced infectious or drug‐related neurologic manifestations. Infectious complications were present in 2.7% (95% CI 1.9–3.6) and 3.3% (95% CI 0.8–7.1) of patients in retrospective and prospective cohort studies, respectively. In retrospective studies, 3.4% (95% CI 2.1–4.9) of patients suffered from drug‐related neurologic events. In prospective cohorts the equivalent incidence was 13% (95% CI 4.2–24.8). Neurologic complications had a detrimental impact on survival. Interpretation Our study highlights the wide spectrum and significant impact of neurologic complications on survival post allo‐HCT. This systematic review summarizes existing data and provides the necessary background information for every physician involved in the management of these patients.
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Affiliation(s)
- Maria Gavriilaki
- Laboratory of Clinical Neurophysiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria Mainou
- Clinical Research and Evidence-Based Medicine Unit, Second Medical Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Gavriilaki
- Hematology Department-BMT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | - Anna-Bettina Haidich
- Department of Hygiene, Social and Preventive Medicine and Medical Statistics, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Ioanna Sakellari
- Hematology Department-BMT Unit, G. Papanicolaou Hospital, Thessaloniki, Greece
| | | | - Vasilis Kimiskidis
- Laboratory of Clinical Neurophysiology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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10
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Xiao Z, Acuna-Villaorduna A, Mantzaris I. Brachial plexopathy following autologous hematopoietic stem cell transplant: an unrecognized complication of autologous transplantation. Leuk Lymphoma 2019; 61:243-245. [PMID: 31429613 DOI: 10.1080/10428194.2019.1654094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Zhengrui Xiao
- Department of Internal Medicine, Jacobi Medical Center, Bronx, NY, USA
| | - Ana Acuna-Villaorduna
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, USA
| | - Ioannis Mantzaris
- Department of Hematology-Oncology, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, USA
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11
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Briani C, Visentin A, Campagnolo M, Salvalaggio A, Ferrari S, Cavallaro T, Manara R, Gasparotti R, Piazza F. Peripheral nervous system involvement in lymphomas. J Peripher Nerv Syst 2019; 24:5-18. [PMID: 30556258 DOI: 10.1111/jns.12295] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/01/2018] [Accepted: 12/08/2018] [Indexed: 12/11/2022]
Abstract
The peripheral nervous system may be involved at any stage in the course of lymphoproliferative diseases. The different underlying mechanisms include neurotoxicity secondary to chemotherapy, direct nerve infiltration (neurolymphomatosis), infections, immune-mediated, paraneoplastic or metabolic processes and nutritional deficiencies. Accordingly, the clinical features are heterogeneous and depend on the localization of the damage (ganglia, roots, plexi, and peripheral nerves) and on the involved structures (myelin, axon, and cell body). Some clinical findings, such a focal or diffuse involvement, symmetric or asymmetric pattern, presence of pain may point to the correct diagnosis. Besides a thorough medical history and neurological examination, neurophysiological studies, cerebrospinal fluid analysis, nerve biopsy (in selected patients with suspected lymphomatous infiltration) and neuroimaging techniques (magnetic resonance neurography and nerve ultrasound) may be crucial for a proper diagnostic workup.
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Affiliation(s)
- Chiara Briani
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Andrea Visentin
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padova, Padova, Italy
| | | | | | - Sergio Ferrari
- Department of Neurology, Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona, Italy
| | - Tiziana Cavallaro
- Department of Neurology, Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona, Italy
| | - Renzo Manara
- Neuroradiology, Department of Medicine and Surgery, University of Salerno, Fisciano, Italy
| | - Roberto Gasparotti
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy
| | - Francesco Piazza
- Hematology and Clinical Immunology Unit, Department of Medicine, University of Padova, Padova, Italy
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12
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New-Tolley J, Smith C, Koszyca B, Otto S, Maundrell A, Bardy P, Hiwase D, Yong ASM, Lewis I, Limaye V. Inflammatory myopathies after allogeneic stem cell transplantation. Muscle Nerve 2018; 58:790-795. [DOI: 10.1002/mus.26341] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 08/27/2018] [Accepted: 09/01/2018] [Indexed: 01/29/2023]
Affiliation(s)
- Julia New-Tolley
- University of Adelaide, North Terrace; Adelaide South Australia 5000 Australia
| | | | | | - Sophia Otto
- SA Pathology; Adelaide South Australia Australia
| | - Adam Maundrell
- Department of Rheumatology; Royal Adelaide Hospital; Adelaide South Australia Australia
| | - Peter Bardy
- Department of Haematology; Royal Adelaide Hospital; Adelaide South Australia Australia
| | - Devendra Hiwase
- Department of Haematology; Royal Adelaide Hospital; Adelaide South Australia Australia
| | - Agnes S. M. Yong
- University of Adelaide, North Terrace; Adelaide South Australia 5000 Australia
| | - Ian Lewis
- University of Adelaide, North Terrace; Adelaide South Australia 5000 Australia
| | - Vidya Limaye
- Department of Rheumatology; Royal Adelaide Hospital; Adelaide South Australia Australia
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13
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John S, Antonia SJ, Rose TA, Seifert RP, Centeno BA, Wagner AS, Creelan BC. Progressive hypoventilation due to mixed CD8 + and CD4 + lymphocytic polymyositis following tremelimumab - durvalumab treatment. J Immunother Cancer 2017; 5:54. [PMID: 28716137 PMCID: PMC5514517 DOI: 10.1186/s40425-017-0258-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 06/14/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The combination of CTLA-4 and PD-L1 inhibitors has a manageable adverse effect profile, although rare immune-related adverse events (irAE) can occur. CASE PRESENTATION We describe an autoimmune polymyositis following a partial response to combination tremelimumab and durvalumab for the treatment of recurrent lung adenocarcinoma. Radiography revealed significant reduction in all metastases; however, the patient developed progressive neuromuscular hypoventilation due to lymphocytic destruction of the diaphragmatic musculature. Serologic testing revealed a low level of de novo circulating antibodies against striated muscle fiber. Immunohistochemistry revealed type II muscle fiber atrophy with a mixed CD8+ and CD4+ lymphocyte infiltrate, indicative of inflammatory myopathy. CONCLUSIONS This case supports the hypothesis that muscle tissue is a target for lymphocytic infiltration in immune checkpoint inhibitor-associated polymyositis. Further insights into the autoimmune mechanism of PM will hopefully contribute to the prevention and treatment of this phenomenon.
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Affiliation(s)
- Sooraj John
- Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Tampa, FL 33612 USA
| | - Scott J. Antonia
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL 33612 USA
| | - Trevor A. Rose
- Department of Diagnostic Radiology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL 33612 USA
| | - Robert P. Seifert
- Department of Pathology and Cell Biology, University of South Florida, 12901 Bruce B. Downs Blvd., MDC 11, Tampa, FL 33612 USA
| | - Barbara A. Centeno
- Department of Pathology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL 33612 USA
| | - Aaron S. Wagner
- Orlando Health Pathology, 1414 Kuhl Ave., MP 44, Orlando, FL 32806 USA
| | - Ben C. Creelan
- Department of Thoracic Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612 USA
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14
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Cheng YF, Huang XJ. [Paraplegia after hematopoietic stem cell transplantation]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2017; 38:357-360. [PMID: 28468104 PMCID: PMC7342721 DOI: 10.3760/cma.j.issn.0253-2727.2017.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Finsterer J, Zarrouk-Mahjoub S. Treatment of muscle weakness in neuromuscular disorders. Expert Rev Neurother 2016; 16:1383-1395. [PMID: 27376189 DOI: 10.1080/14737175.2016.1206471] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Weakness is one of the predominant clinical manifestations of neuromuscular disorders (NMDs), which strongly influences daily life, prognosis, and outcome of affected patients. One of the major therapeutic goals in NMD-patients is to completely resolve muscle weakness. Various treatment options are available and include physical therapy, electrotherapy, diet, drugs, avoidance or withdrawal of muscle-toxic and weakness-inducing agents, detoxification, stem-cell-therapy, plasma-exchange, respiratory therapy, or surgery. Most accessible to treatment is weakness from immune-mediated neuropathies, immune-mediated transmission-disorders, and idiopathic immune myopathies. Areas covered: This manuscript aims to summarize and discuss recent findings and future perspectives concerning the treatment of muscle weakness in NMDs. Data were obtained by a literature search in databases such as PubMed and Current-Contents. Expert commentary: Weakness is most easily treatable in acquired NMDs and in hereditary myopathies and neuropathies beneficial treatment options are also available. Research needs to be encouraged and intensified to further expand the spectrum of treatment options for weakness.
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16
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Bilic E, Delimar V, Desnica L, Pulanic D, Bilic E, Bakovic M, Curtis LM, Seiwerth RS, Stipetic MM, Ceovic R, Pulanic TK, Aleric I, Milos O, Vrhovac R, Nemet D, Pavletic SZ. High prevalence of small- and large-fiber neuropathy in a prospective cohort of patients with moderate to severe chronic GvHD. Bone Marrow Transplant 2016; 51:1513-1517. [PMID: 27272447 DOI: 10.1038/bmt.2016.158] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- E Bilic
- Department of Neurology, University Hospital Centre Zagreb, Zagreb, Croatia.,University of Zagreb School of Medicine, Zagreb, Croatia
| | - V Delimar
- Department of Neurology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - L Desnica
- Division of Haematology, Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - D Pulanic
- University of Zagreb School of Medicine, Zagreb, Croatia.,Division of Haematology, Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia.,Faculty of Medicine Osijek, JJ Strossmayer University of Osijek, Osijek, Croatia
| | - E Bilic
- University of Zagreb School of Medicine, Zagreb, Croatia.,Department of Pediatric Haematology and Oncology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - M Bakovic
- Institute of Forensic Medicine and Criminalistics, University of Zagreb School of Medicine, Zagreb, Croatia
| | - L M Curtis
- Experimental Transplantation & Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - R S Seiwerth
- Division of Haematology, Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - M M Stipetic
- University of Zagreb, School of Dental Medicine, Zagreb, Croatia.,University Dental Clinic, Clinical Department of Oral Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - R Ceovic
- University of Zagreb School of Medicine, Zagreb, Croatia.,Department of Dermatology and Venerology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - T K Pulanic
- Gynecology Department, Community Health Center Zagreb East, Zagreb, Croatia
| | - I Aleric
- Faculty of Medicine Osijek, JJ Strossmayer University of Osijek, Osijek, Croatia.,Department of Pulmology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - O Milos
- Department of Neurology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - R Vrhovac
- University of Zagreb School of Medicine, Zagreb, Croatia.,Division of Haematology, Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - D Nemet
- University of Zagreb School of Medicine, Zagreb, Croatia.,Division of Haematology, Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia.,Faculty of Medicine Osijek, JJ Strossmayer University of Osijek, Osijek, Croatia
| | - S Z Pavletic
- Experimental Transplantation & Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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17
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Grisold W, Grisold A, Löscher WN. Neuromuscular complications in cancer. J Neurol Sci 2016; 367:184-202. [PMID: 27423586 DOI: 10.1016/j.jns.2016.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 05/08/2016] [Accepted: 06/01/2016] [Indexed: 12/11/2022]
Abstract
Cancer is becoming a treatable and even often curable disease. The neuromuscular system can be affected by direct tumor invasion or metastasis, neuroendocrine, metabolic, dysimmune/inflammatory, infections and toxic as well as paraneoplastic conditions. Due to the nature of cancer treatment, which frequently is based on a DNA damaging mechanism, treatment related toxic side effects are frequent and the correct identification of the causative mechanism is necessary to initiate the proper treatment. The peripheral nervous system is conventionally divided into nerve roots, the proximal nerves and plexus, the peripheral nerves (mono- and polyneuropathies), the site of neuromuscular transmission and muscle. This review is based on the anatomic distribution of the peripheral nervous system, divided into cranial nerves (CN), motor neuron (MND), nerve roots, plexus, peripheral nerve, the neuromuscular junction and muscle. The various etiologies of neuromuscular complications - neoplastic, surgical and mechanic, toxic, metabolic, endocrine, and paraneoplastic/immune - are discussed separately for each part of the peripheral nervous system.
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Affiliation(s)
- W Grisold
- Department of Neurology, Kaiser Franz Josef Hospital, Vienna, Austria.
| | - A Grisold
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - W N Löscher
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
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18
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Ruzhansky KM, Brannagan TH. Neuromuscular complications of hematopoietic stem cell transplantation. Muscle Nerve 2015; 52:480-7. [DOI: 10.1002/mus.24724] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Katherine M. Ruzhansky
- Medical University of South Carolina, Department of Neurology and Neurosurgery; Neuromuscular Division; 96 Jonathan Lucas Street, CSB 301 Charleston South Carolina 29425 USA
| | - Thomas H Brannagan
- Columbia University Medical Center, Peripheral Neuropathy Center; Neurological Institute; New York New York USA
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