Department of Neuromuscular Research, National Center of Neurology and Psychiatry (NCNP), National Institute of Neuroscience, 4-1-1 Ogawahigashi, Tokyo 187-8502, Japan; Medical Genome Center, NCNP, Tokyo, Kodaira, Japan. Electronic address: nishino@ncnp.go.jp.
INSERM, GIN-U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, University Grenoble Alpes, Bat EJ Safra, Chemin Fortuné Ferrini, La Tronche, Grenoble, France.
INSERM, GIN-U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, University Grenoble Alpes, Bat EJ Safra, Chemin Fortuné Ferrini, La Tronche, Grenoble, France.
Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 187-8502 Tokyo, Japan; Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry, 187-8551 Tokyo, Japan.
From the Department of Learning, Informatics and Medical Education, Karolinska Institutet; Function Area Occupational Therapy and Physical Therapy, Allied Health Professionals Function, Karolinska University Hospital, Department of Neurobiology, Care Science and Society, Division of Physiotherapy and Department of Medicine, Karolinska Institutet; Division of Rheumatology, Rheumatology Unit, Department of Medicine, Karolinska Institutet, Solna, Sweden; Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA; Division of Rheumatology, Department of Internal Medicine, Medical Research Center, College of Medicine, Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, Korea; Division of Rheumatology, Fiona Stanley Hospital, Institute for Immunology and Infectious Diseases, Murdoch University, Perth; The Notre Dame University Fremantle, Fremantle, Australia; Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam, the Netherlands; Center for Global Health, University of Ottawa, Ottawa, Ontario, Canada.
M. Regardt, PhD, Occupational Therapist, Department of Learning, Informatics and Medical Education, Karolinska Institutet, and Function Area Occupational Therapy and Physical Therapy, Allied Health Professionals Function, Karolinska University Hospital; C.A. Mecoli, MD, Division of Rheumatology, Department of Medicine, Johns Hopkins University; J.K. Park, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital; I. de Groot, Patient Research Partner; C. Sarver, Patient Research Partner; M. Needham, MD, Division of Rheumatology, Fiona Stanley Hospital, Institute for Immunology and Infectious Diseases, Murdoch University, and The Notre Dame University; M. de Visser, MD, PhD, Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience; B. Shea, MSN, Center for Global Health, University of Ottawa; C.O. Bingham III, MD, Division of Rheumatology, Department of Medicine, Johns Hopkins University; I.E. Lundberg, MD, PhD, Division of Rheumatology, Rheumatology Unit, Department of Medicine, Karolinska Institutet; Y.W. Song, MD, PhD, Division of Rheumatology, Department of Internal Medicine, Medical Research Center, College of Medicine, Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University; L. Christopher-Stine, MD, Division of Rheumatology, Department of Medicine, Johns Hopkins University; H. Alexanderson, PhD, Physiotherapist, Department of Neurobiology, Care Science and Society, Division of Physiotherapy and Department of Medicine Solna, Karolinska Institutet, and Function Area Occupational Therapy and Physical Therapy, Allied Health Professionals Function, Karolinska University Hospital. M. Regardt and Dr. C. Mecoli are co-first authors.
Department of Neuromuscular Research, National Center of Neurology and Psychiatry (NCNP), National Institute of Neuroscience, 4-1-1 Ogawahigashi, Tokyo 187-8502, Japan; Medical Genome Center, NCNP, Tokyo, Kodaira, Japan; Department of Pediatrics, Showa General Hospital, Tokyo, Kodaira, Japan.
INSERM, GIN-U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, University Grenoble Alpes, Bat EJ Safra, Chemin Fortuné Ferrini, La Tronche, Grenoble, France.
INSERM, GIN-U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, University Grenoble Alpes, Bat EJ Safra, Chemin Fortuné Ferrini, La Tronche, Grenoble, France. isabelle.marty@univ-grenoble-alpes.fr.
Neuromuscular Morphology Unit, Myology Institute, Groupe Hospitalier Universitaire La Pitié-Salpêtrière, Paris, France. matteo.garibaldi@uniroma1.it.
Unit of Neuromuscular Diseases, Neuromuscular Disease Centre, Department of Neurology Mental Health and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, SAPIENZA University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1035-1039, 00189, Rome, Italy. matteo.garibaldi@uniroma1.it.
Service Neurologie Médicale, Centre de Référence Maladies Neuromusculaire Paris-Est-Ile de France, CHU Raymond-Poincaré Paris Ouest, Garches, France.
U1179 UVSQ-INSERM Handicap Neuromusculaire: Physiologie, Biothérapie et Pharmacologie appliquées, UFR des sciences de la santé Simone Veil, Université Versailles-Saint-Quentin-en-Yvelines, Versailles, France.
Unit of Neuromuscular Diseases, Neuromuscular Disease Centre, Department of Neurology Mental Health and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, SAPIENZA University of Rome, Sant'Andrea Hospital, Via di Grottarossa 1035-1039, 00189, Rome, Italy.
To compare the ability of immunohistochemistry (IHC), multiparameter flow cytometry (MFC) and fluorescence in situ hybridisation (FISH) to detect clonal plasma cells. We also attempted to outline a te...
A retrospective review was performed on 278 CD138+sorted FISH studies from November 2019 to December 2020 along with their concurrent IHC and MFC results. A p value was computed using McNemar's test f...
Using the Mc Nemar's test for paired data, CD138+sorted FISH studies achieved the highest proportion of positive results and was significantly greater than MFC (63% vs 53%, p=0.01). FISH had more posi...
While CD138+sorted FISH is primarily used for prognostication, it may be employed as a single test for detection and monitoring clonality in certain scenarios. Further studies are needed to monitor th...
Plasma cell vulvitis is a rare inflammatory disorder of the vulva with an unknown aetiology, characterised by mucosal inflammation. It commonly manifests as pain, itching, dyspareunia, and dysuria and...
case report; immunosuppressant; platelet-rich plasma; vulvitis....
The evaluation of plasma cell (PC) compartment is influenced by the quality of bone marrow aspirate (BMA). Herein, we evaluated the impact of sequence of pull on quality of clinical assessment in plas...
Histomorphology along with smears from first pull and second pull BMA and flow cytometric immunophenotyping (FCMI) data from second pull aspirate were evaluated for cellularity and PC%....
Of the 484 samples, BMA smears were adequate in 87.4% of first pull (median PC = 7%; IQR = 2-25%) and 51.2% of second pull samples (median PC = 2%; IQR = 0.5-12%; p < 0.001). Recovery of PC was least ...
First pull BMA smears were of superior quality but inadequate in one-tenth of samples. Second pull smears underreported PC% and recovery of PC compartment was poorest on FCMI. Concurrent bone marrow b...
Next-generation sequencing (NGS) detects somatic mutations in a high proportion of plasma cell dyscrasias (PCD), but is currently not integrated into diagnostic routine. We correlated NGS data with de...
Of the 90 patients the diagnoses comprised multiple myeloma (n = 77), MGUS (n = 7), AL-amyloidosis (n = 4) or solitary plasmocytoma (n = 2). The NGS panel included eight genes CCND1, DIS3, EGR1, FAM46...
Mutations were detected in 64/90 (71%) of cases. KRAS (29%), NRAS (16%) and DIS3 (16%) were most frequently mutated. At least one mutation/sample corresponded to a higher degree of BM involvement with...
The probability of detecting a mutation by NGS in the BM was highest in samples with > 10% clonal PC by MFC, or > 20% PC by BMC/ BMH. We propose further evaluation of these thresholds as a practical c...
Plasma cells (PCs) are essential for the quality and longevity of protective immunity. The canonical humoral response to vaccination involves induction of germinal centers in lymph nodes followed by m...
Plasma cell gingivitis (PCG) is an inflammatory condition that affects the gingival mucosa of the oral cavity. It is characterized by polyclonal dense plasma cell infiltrate in the connective tissue. ...
Primary plasma cell leukemia (PCL) is the most aggressive monoclonal gammopathy. It was formerly characterized by ≥ 20% circulating plasma cells (CTCs) until 2021, when this threshold was decreased to...
We assessed the levels of CTCs by multiparameter flow cytometry in 395 patients with newly diagnosed transplant-ineligible MM to establish a cutoff for CTCs that identifies the patients with ultra-hig...
Newly diagnosed transplant-ineligible patients with MM with 2%-20% CTCs had significantly shorter progression-free survival (3.1...
Our study uncovers that ≥ 2% CTCs is a biomarker of hidden primary PCL and supports the assessment of CTCs by flow cytometry during the diagnostic workup of MM....
Autoantibody (autoAbs) production in osteoarthritis (OA), coupled with evidence of disturbed B-cell homoeostasis, suggest a potential role for B-cells in OA. B-cells can differentiate with T-cell help...
B-cells were isolated from OA and HC. Standardised in vitro models of B-cell differentiation were used comparing T-dep (CD40 (cluster of differentiation-40/BCR (B-cell receptor)-ligation) versus TLR-d...
Compared to HC, circulating OA B-cells showed an overall more mature phenotype. The gene expression profile of synovial OA B-cells resembled that of PCs. Circulating B-cells differentiated under both ...
Our findings suggest that OA B-cells present an altered capacity for proliferation and differentiation while remaining able to produce antibodies, notably in synovium. These findings may partly contri...
A recent study shows that the SNARE protein Sec22b plays a key role in antibody-secreting plasma cell accrual. Without Sec22b, antibody titres were diminished, and plasma cells rare to undetectable. T...
In recent decades, our understanding of periodontitis has evolved from that based on a gross/histologic level to one on a cellular/molecular level. Previous landscape studies have explored molecular s...
