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https://www.readbyqxmd.com/read/29779321/-the-value-of-serum-heavy-light-chain-immunoassay-to-assess-therapeutic-response-in-patients-with-multiple-myeloma
#1
X C Yu, W Su, J L Zhuang
Objective: To assess the value of immunoglobulin heavy/light chain (HLC) immunoassay on therapeutic response in patients with multiple myeloma(MM). Methods: A total of 45 newly diagnosed MM patients were retrospectively enrolled in Peking Union Medical College Hospital from 2013 to 2016, whose 115 serum samples were consecutively collected. HLC was tested to evaluate response and compare with other methods for M protein detection. Results: ①There were 30 males and 15 females in total of whom the monoclonal immunoglobulin was IgG in 27 (IgGκ∶IgGλ 12∶15) and IgA (IgAκ∶IgAλ 9∶9) in 18...
April 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29743398/-achievement-of-a-stringent-complete-response-with-low-dose-pomalidomide-monotherapy-in-a-multiple-myeloma-patient
#2
Toshihide Endo, Takashi Hamada, Shimon Otake, Masaru Nakagawa, Yshihito Uchino, Hiromichi Takahashi, Katsuhiro Miura, Noriyoshi Iriyama, Takashi Koike, Kazuya Kurihara, Hiroko Sato, Yoshihiro Hatta, Msamai Takei
An 80-year-old man presented to our hospital with a thoracic vertebrae compression fracture. He was diagnosed with IgG-λ myeloma (International Staging System stage II, Durie-Salmon stage IIIA). Since melphalan-prednisolone (MP) was not effective, we treated him with lenalidomide and low-dose dexamethasone (DEX) (Ld), achieving a partial response. As DEX provoked edema and psychiatric symptoms, the patient disagreed with its use, and pomalidomide (POM) monotherapy was initiated. Although the POM dosage was reduced to 1-2 mg/day due to somnolence, which was reported as an adverse event, stringent complete response (sCR) was achieved and sustained for 10 months following 11 cycles of low-dose POM monotherapy...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29739081/subclasses-of-monoclonal-type-i-immunoglobulin-g-cryoglobulins-report-on-two-distinct-cases-with-myeloma
#3
Tania Petersen, Sebastien Riviere, Stephanie Malbos, Yannick Chantran, Aicha Abbas, Francois Chasset, Arsene Mekinian, Jeremie Sellam, Laurent Garderet, Pierre Aucouturier
BACKGROUND: While different clinical manifestations of IgM and IgG monoclonal cryoglobulins have been demonstrated, little is known about the roles of IgG subclasses in the pathophysiology of these conditions. METHODS: In two cases of myeloma-associated monoclonal (type I) cryoglobulinemia with quite distinct clinical and biological features, serum samples were analyzed using an original IgG subclass-specific immunoblotting technique. RESULTS: The first case had painful arthritis of hands and feet, with skin purpura and a sharp decrease of complement C4 level, and the cryoglobulin was of IgG1 subclass...
April 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29669959/evaluation-of-the-fusion-partner-cell-line-spymeg-for-obtaining-human-monoclonal-antibodies-against-influenza-b-virus
#4
Priyanka Soni, Atsuhiro Yasuhara, Toru Takenaga, Kiyoko Iwatsuki-Horimoto, Ryuta Uraki, Mutsumi Ito, Tadahiro Sasaki, Kazuyoshi Ikuta, Seiya Yamayoshi, Yoshihiro Kawaoka
Influenza B virus has been known to infect humans and other animals, including seals. Vaccination efficacy varies across seasons. Human monoclonal antibodies (mAbs) can be useful for developing novel vaccines, guided by epitope analysis, and can be used therapeutically. Hybridoma technology has been used to make mAbs. Here we evaluated SPYMEG as a fusion partner cell line for human mAb generation specific to influenza B hemagglutinin (HA). SPYMEG is a human/murine myeloma partner cell line that has previously been used to generate human mAbs that recognize the HA of influenza A and B viruses...
April 17, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29622867/autologous-stem-cell-transplantation-for-multiple-myeloma-single-centre-experience-from-north-india
#5
Pankaj Malhotra, Uday Yanamandra, Alka Khadwal, Gaurav Prakash, Deepesh Lad, Arjun D Law, Harshit Khurana, M U S Sachdeva, Praveen Bose, Reena Das, Neelam Varma, Subhash Varma
Autologous stem cell transplantation (ASCT) is considered as standard of care in patients with multiple myeloma (MM) patients aged 65 years or younger. We analyzed data of 94 patients of plasma cell dyscrasias who underwent 95 autologous transplants at our institute from October 2003 to Aug 2016. Other than 76 patients of newly diagnosed multiple myeloma, we also transplanted two patients of POEMS syndrome, two patients of plasma cell leukemia, three patients of concurrent light chain deposition disease, three patients of multifocal plasmacytomas, and eight patients of isolated light chain myeloma...
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29616649/description-of-48-cases-of-multiple-myeloma-seen-in-the-hematology-laboratory-of-the-chu-joseph-ravoahangy-andrianavalona-antananarivo-madagascar
#6
M O M Harioly Nirina, A S Rasolonjatovo, B G Tsifanesy, Z H Rakotoarivelo, T M Raheritiana, A O Rakoto Alson, A Rasamindrakotroka
Monoclonal gammopathies are common abnormalities and their incidence increases with age. They are detected in roughly 3 % of people older over 50 years and up to 7 % of those over 70 years. Multiple myeloma (MM) is characterized by the proliferation of plasma cells within the bone marrow and excess secretion of monoclonal immunoglobulins. In Madagascar, late performance of biological examinations such as serum protein electrophoresis overestimates MM rates. We studied 54 patient records between March 2009 and January 2015 in the biology laboratory of the Joseph Ravoahangy Andrianavalona university hospital in Antananarivo (Madagascar)...
February 1, 2018: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/29568990/necrobiotic-xanthogranuloma-a-30-year-single-center-experience
#7
Talal Hilal, David J DiCaudo, Suzanne M Connolly, Craig B Reeder
To characterize the clinical features, associated disorders, and treatment of necrobiotic xanthogranuloma (NXG), a rare non-Langerhans cell histiocytosis, we conducted a retrospective review of pathologically confirmed NXG at Mayo Clinic Arizona from 1987 to June 2017. Data on clinical findings, laboratory findings, associated disorders, therapy, and response to therapy were extracted. Nineteen patients were identified. Mean age was 54 years (range, 17-84) with equal gender distribution. Median follow-up was 5...
March 22, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29532268/monoclonal-gammopathy-in-rheumatic-diseases
#8
Yue Yang, Long Chen, Yuan Jia, Yang Liu, Lei Wen, Yaoxian Liang, Yuan An, Shi Chen, Yin Su, Zhanguo Li
To analyze the clinical spectrum, laboratory characteristics, and outcomes of monoclonal gammopathy (MG) in patients with rheumatic diseases. Screening for the presence of MG was performed in 872 inpatients with rheumatic diseases from January 2010 to July 2017. A total of 41 patients were enrolled. Their clinical and biological features in addition to outcomes were described. For each patient with primary Sjögren syndrome (pSS), 2 age- and sex-matched pSS patients without MG were selected as controls. Risk factors for the presence of MG and malignant hematological neoplasias were assessed...
March 13, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29523615/treatment-of-relapsed-multiple-myeloma-complicated-by-cardiac-extramedullary-plasmacytoma-with-d-pace-chemotherapy
#9
Corey Toocheck, Daniel Pinkhas
Cardiac extramedullary plasmacytomas (EMPs) are rare and may be a seen as a complication of multiple myeloma (MM) or in isolation. Here, we describe a case of cardiac EMP that presented clinically as a congestive heart failure exacerbation in a patient with relapsed and refractory IgG lambda MM. We highlight radiographic imaging in conjunction with laboratory biomarkers at presentation and in response to D-PACE (dexamethasone, cisplatin (Platinol), doxorubicin (Adriamycin), cyclophosphamide and etoposide) systemic chemotherapy...
March 9, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29512797/epidemiological-clinical-and-pronostic-aspects-of-multiple-myeloma-eligible-for-therapeutic-intensification-followed-by-autologous-hematopoietic-stem-cell-in-the-algerian-west-report-of-147-cases
#10
Latifa Mohammadi, Noria Harir, Mohamed Brahimi, Soraya Moulessehoul, Mohamed Amine Bekadja
BACKGROUND: Multiple Myeloma (MM) represent about 1 to 2% of cancers and 15% of all hematological malignancies. It is characterized by malignant proliferation of plasmocytes in bone marrow and an excess of secreted monoclonal immunoglobulins (Ig) Objective: Describe the epidemiological, clinical, biological and prognosis of patients with MM treated with autologous peripheral hematopoietic stem cell transplantation (APHSCT) in the Algerian West. METHODS: It is a retrospective descriptive study covering all MM patients treated with APHSCT over a period of 7 years (2008-2015) at service of Haematology and Cell Therapy of the EHU "1er November 1954 of Oran, Algeria...
June 2017: La Tunisie Médicale
https://www.readbyqxmd.com/read/29507674/comparison-of-immuno-pet-of-cd138-and-pet-imaging-with-64-cucl-2-and-18-f-fdg-in-a-preclinical-syngeneic-model-of-multiple-myeloma
#11
Clément Bailly, Sébastien Gouard, Marie Lacombe, Patricia Remaud-Le Saëc, Benjamin Chalopin, Mickaël Bourgeois, Nicolas Chouin, Raphaël Tripier, Zakaria Halime, Ferid Haddad, Alain Faivre-Chauvet, Françoise Kraeber-Bodéré, Michel Chérel, Caroline Bodet-Milin
Purpose: Although recent data from the literature suggest that PET imaging with [18]-Fluorodeoxyglucose (18 F-FDG) is a promising technique in multiple myeloma (MM), the development of other radiopharmaceuticals seems relevant. CD138 is currently used as a standard marker in many laboratories for the identification and purification of myeloma cells, and could be used in phenotype tumor imaging. In this study, we evaluated a 64 Cu-labeled anti-CD138 murine antibody (64 Cu-TE2A-9E7.4) and a metabolic tracer (64 CuCl2 ) for PET imaging in a MM syngeneic mouse model...
February 6, 2018: Oncotarget
https://www.readbyqxmd.com/read/29477943/the-use-of-emergency-apheresis-in-the-management-of-plasma-cell-disorders
#12
REVIEW
Sevgi Kalayoglu-Besisik
Hyperviscosity syndrome (HVS) develops most commonly in Waldenström's macroglobulinemia (WM) and multiple myeloma (MM). Plasmapheresis is the immediate therapy and very effective at relieving symptoms by removing paraprotein. The most commonly used replacement fluid is 4%-5% human albumin in physiologic saline. FFP may be used in patients with coagulation abnormalities. Plasmapheresis should be continued until acute symptoms abate. Hyperviscosity impairs the circulation in the retina and causes hemorrhages around the small retinal vessels...
February 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29450576/immunopet-imaging-of-cd38-in-murine-lymphoma-models-using-89-zr-labeled-daratumumab
#13
Lei Kang, Dawei Jiang, Christopher G England, Todd E Barnhart, Bo Yu, Zachary T Rosenkrans, Rongfu Wang, Jonathan W Engle, Xiaojie Xu, Peng Huang, Weibo Cai
PURPOSE: CD38 is considered a potential biomarker for multiple myeloma (MM) and has shown a strong link with chronic lymphocytic leukemia due to high and uniform expression on plasma cells. In vivo evaluation of CD38 expression may provide useful information about lesion detection and prognosis of treatment in MM. In this study, immunoPET imaging with 89 Zr-labeled daratumumab was used for differentiation of CD38 expression in murine lymphoma models to provide a potential non-invasive method for monitoring CD38 in the clinic...
February 15, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29415936/-recurrent-invasive-pneumococcal-disease-in-a-patient-with-igg-%C3%AE%C2%BA-smoldering-multiple-myeloma
#14
Masahiro Chiba, Kazuo Oshimi, Toshihiro Matsukawa, Kouhei Okada, Takuto Miyagishima
A 68-year-old female with smoldering multiple myeloma (IgG-κ type) was admitted to the hospital owing to general fatigue, fever, and pain in the right leg. On the day following admission, she developed shock, and a blood culture revealed Streptococcus pneumoniae. She was diagnosed with septic shock and invasive pneumococcal disease (IPD). She received antibiotics and intravenous immunoglobulin and improved after several days. She had a history of recurrent IPD and had received the pneumococcal polysaccharide vaccine 23 (PPSV23) 2 years earlier...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29393843/successful-treatment-of-nephrotic-syndrome-induced-by-lambda-light-chain-deposition-disease-using-lenalidomide-a-case-report-and-review-of-the-literature
#15
Akira Mima, Dai Nagahara, Kosuke Tansho
BACKGROUND: Light chain deposition disease (LCDD) is a monoclonal immunoglobulin deposition disease (MIDD) that is characterized by the deposition of monoclonal light chains in multiple organs, including the kidney. It is a rare disorder caused by an underlying monoclonal plasma cell dyscrasia. LCDD with renal involvement causes proteinuria, which sometimes can lead to nephrotic syndrome. The monoclonal light chains are mostly in the κ form. Treatment of LCDD is the same as that for multiple myeloma (MM); however, some conventional anticancer drugs show substantial toxicity and therefore cannot be administered to older patients or those with renal impairment...
February 2, 2018: Clinical Nephrology
https://www.readbyqxmd.com/read/29380179/pomalidomide-with-or-without-dexamethasone-for-relapsed-refractory-multiple-myeloma-in-japan-a-retrospective-analysis-by-the-kansai-myeloma-forum
#16
Yayoi Matsumura-Kimoto, Junya Kuroda, Hitomi Kaneko, Yuri Kamitsuji, Shin-Ichi Fuchida, Aya Nakaya, Hirohiko Shibayama, Nobuhiko Uoshima, Isao Yokota, Hitoji Uchiyama, Hideo Yagi, Satoru Kosugi, Toshimitsu Matsui, Jun Ishikawa, Mitsuhiro Matsuda, Kensuke Ohta, Masato Iida, Hirokazu Tanaka, Masayuki Kobayashi, Katsuya Wada, Chihiro Shimazaki, Shosaku Nomura, Kazunori Imada, Masayuki Hino, Itaru Matsumura, Yuzuru Kanakura, Akifumi Takaori-Kondo
Determinants of the efficacy and safety of pomalidomide (POM) monotherapy or POM plus dexamethasone (DEX) (POM/DEX) for relapsed and refractory multiple myeloma (RRMM) were examined retrospectively in a real-world clinical practice setting in Japan. The subjects were 108 patients registered with the Kansai Myeloma Forum, who were treated with either POM or POM/DEX. Of these, 79 (73%), 73 (68%), and 58 (54%) were resistant to bortezomib (BTZ), lenalidomide (LEN), and both BTZ and LEN, respectively. The median overall survival (OS) was not reached...
May 2018: International Journal of Hematology
https://www.readbyqxmd.com/read/29375846/the-clinical-utility-of-serum-free-light-chain-and-heavy-light-chain-assays-in-monitoring-disease-activity-in-patients-with-igg-myeloma-after-achieving-a-deep-response
#17
Kazuyuki Shimizu, Yoshikazu Kamiya, Junji Itoh, Jun Okada, Merrell Lim, Satoru Sugiyama
Heavy/light chain (HLC) assay will enable us to evaluate the changes in the concentrations of iHLC and uHLC separately and to better identify whether the change observed is clonal or reactive. It would therefore aid in decision making for earlier implementation or discontinuation of treatment for patients with intact immunoglobulin multiple myeloma (MM).
January 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29326807/heavy-chain-diseases-and-myeloma-associated-fanconi-syndrome-an-update
#18
REVIEW
Roberto Ria, Franco Dammacco, Angelo Vacca
The heavy chain diseases (HCDs) are rare B-cell malignancies characterized by the production of a monoclonal immunoglobulin heavy chain without an associated light chain. There are three types of HCD, defined by the class of immunoglobulin heavy chain produced: IgA (α-HCD), IgG (γ-HCD), and IgM (μ-HCD). Alpha-HCD is the most common and usually occurs as intestinal malabsorption in a young adult from a country of the Mediterranean area. Gamma- and μ-HCDs are rarer and associated with a B-cell non-Hodgkin lymphoma that produces an abnormal Ig heavy chain...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29324245/heavy-light-chain-assay-as-a-biomarker-for-diagnosis-and-follow-up-of-multiple-myeloma
#19
Hyojin Chae, Eunhee Han, Jaeeun Yoo, Jaewoong Lee, Jeong Joong Lee, Kyoungho Cha, Myungshin Kim, Yonggoo Kim, Sung-Eun Lee, Chang-Ki Min
BACKGROUND: The heavy-light chain (HLC) assay enables the accurate measurement of each isotype-specific heavy and light chain (i.e., IgGĸ, IgGλ, IgAĸ, and IgAλ) and the derivation of an HLC-pair ratio. However, to date, only limited data have validated the usefulness of serial HLC measurements in the routine follow-up of intact immunoglobulin multiple myeloma (MM) patients. METHODS: A total of 36 diagnostic and 671 post-treatment sera from 115 IgG and 61 IgA MM patients were assessed with capillary zone electrophoresis, immunosubtraction electrophoresis, total immunoglobulin measurement, free light chain, and HLC assay...
April 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29306413/relative-quantitation-of-neutral-and-sialylated-n-glycans-using-stable-isotopic-labeled-d0-d5-benzoyl-chloride-by-maldi-ms
#20
Chang Wang, Yike Wu, Liang Zhang, Bi-Feng Liu, Yawei Lin, Xin Liu
Quantitative analysis of glycans is an emerging field in glycomic research. Herein we present a rapid and effective dual-labeling strategy, in the combination of isotopic derivatization of N-glycosylamine-based glycans by d0/d5-benzoyl chloride and methylamidation of sialic acids, to relatively quantify both neutral and sialylated N-glycans simultaneously by MALDI-MS. The derivatization efficiencies were increased by microwave-accelerated deglycosylation which not only largely reduce the time of glycoprotein deglycosylation but also inhibit the hydrolysis of intermediate glycosylamines produced by PNGase F digestion...
March 9, 2018: Analytica Chimica Acta
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