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Elie Dolgin
In the version of this article initially published, Betalutin was described as directing a radioisotope to CD45-expressing B cells; in fact, it directs it to CD37-expressing B cells. The error has been corrected in the HTML and PDF versions of the article.
January 18, 2019: Nature Biotechnology
(no author information available yet)
No abstract text is available yet for this article.
December 6, 2018: Blood
Héctor Rodríguez Bustos, Omar Espinoza-Navarro, María Eugenia Castro
Classical conditioning (CC) with a sweet flavored is useful for experimental models of immune response. The objective this work was analyze spleen cell response on the differentiation of B-lymphocytes associated with the CC with sweet flavored in adult rats. Twelve adult male rats were divided (n = 3) in Group 1 (control); Group 2 without conditioned stimulus (WCS) received only water; Group 3 receiving only water with salt; Group 4 (experimental) with CS of sweet flavored and salty flavored afterwards. In every work group, all animals were subjected to the unconditioned stimulus (US) treated by 10 mg/kg body weight of cyclophosphamide injected intraperitoneally (i...
October 26, 2018: Microscopy Research and Technique
Zahra Payandeh, Effat Noori, Bahman Khalesi, Maysam Mard-Soltani, Jalal Abdolalizadeh, Saeed Khalili
CD37 is a member of tetra-spanning superfamily (characterized by their four transmembrane domains). It is one of the specific proteins for normal and malignant mature B cells. Anti CD37 monoclonal antibodies are reported to improve the overall survival in CLL. These therapeutics will increase the efficacy and reduce the toxicity in patients with both newly diagnosed and relapsed and refractory disease. Recent clinical trials have shown promising outcomes for these agents, administered both as monotherapy and in combination with standard chemotherapeutics...
December 2018: Biotechnology Letters
(no author information available yet)
First Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping early-career researchers promote themselves alongside their papers. Lotte de Winde is the first author on 'C-type lectin-like receptor 2 (CLEC-2)-dependent dendritic cell migration is controlled by tetraspanin CD37', published in Journal of Cell Science. Lotte conducted the research in this article while a PhD student at the Radboud Institute for Molecular Life Sciences, The Netherlands, under the supervision of Prof...
October 2, 2018: Journal of Cell Science
Charlotte M de Winde, Alexandra L Matthews, Sjoerd van Deventer, Alie van der Schaaf, Neil D Tomlinson, Erik Jansen, Johannes A Eble, Bernhard Nieswandt, Helen M McGettrick, Carl G Figdor, Michael G Tomlinson, Sophie E Acton, Annemiek B van Spriel
Cell migration is central to evoking a potent immune response. Dendritic cell (DC) migration to lymph nodes is dependent on the interaction of C-type lectin-like receptor 2 (CLEC-2; encoded by the gene Clec1b ), expressed by DCs, with podoplanin, expressed by lymph node stromal cells, although the underlying molecular mechanisms remain elusive. Here, we show that CLEC-2-dependent DC migration is controlled by tetraspanin CD37, a membrane-organizing protein. We identified a specific interaction between CLEC-2 and CD37, and myeloid cells lacking CD37 ( Cd37 -/- ) expressed reduced surface CLEC-2...
October 2, 2018: Journal of Cell Science
Irene Scarfò, Maria Ormhøj, Matthew J Frigault, Ana P Castano, Selena Lorrey, Amanda A Bouffard, Alexandria van Scoyk, Scott J Rodig, Alexandra J Shay, Jon C Aster, Frederic I Preffer, David M Weinstock, Marcela V Maus
Chimeric antigen receptor (CAR) T cells have emerged as a novel form of treatment of patients with B-cell malignancies. In particular, anti-CD19 CAR T-cell therapy has effected impressive clinical responses in B-cell acute lymphoblastic leukemia and diffuse large B-cell lymphoma. However, not all patients respond, and relapse with antigen loss has been observed in all patient subsets. Here, we report on the design and optimization of a novel CAR directed to the surface antigen CD37, which is expressed in B-cell non-Hodgkin lymphomas, in chronic lymphocytic leukemia, and in some cases of cutaneous and peripheral T-cell lymphomas...
October 4, 2018: Blood
Louisa Yeung, Michael J Hickey, Mark D Wright
Immune cell recruitment and migration is central to the normal functioning of the immune system in health and disease. Numerous adhesion molecules on immune cells and the parenchymal cells they interact with are well recognized for their roles in facilitating the movements of immune cells throughout the body. A growing body of evidence now indicates that tetraspanins, proteins known for their capacity to organize partner molecules within the cell membrane, also have significant impacts on the ability of immune cells to migrate around the body...
2018: Frontiers in Immunology
Ada H V Repetto-Llamazares, Marion M Malenge, Adam O'Shea, Bergthóra Eiríksdóttir, Trond Stokke, Roy H Larsen, Jostein Dahle
OBJECTIVES: To investigate the therapeutic potential of the next-generation anti-CD37 radioimmunoconjugate 177 Lu-lilotomab satetraxetan (177 Lu-lilotomab) in combination with the anti-CD20 antibody rituximab for treatment of mice with non-Hodgkin's lymphoma (NHL) xenografts. METHODS: Nude mice with subcutaneous (s.c.) Burkitt's lymphoma Daudi xenografts and SCID mice intravenously (i.v.) injected with Mantle cell lymphoma Rec-1 cells were treated with either 177 Lu-lilotomab or rituximab alone or with the combination of both treatments...
October 2018: European Journal of Haematology
Fleur Schaper, Annemiek B van Spriel
Antitumor immunity is shaped by the different types of immune cells that are present in the tumor microenvironment (TME). In particular, environmental signals (for instance, soluble factors or cell-cell contact) transmitted through the plasma membrane determine whether immune cells are activated or inhibited. Tetraspanin proteins are emerging as central building blocks of the plasma membrane by their capacity to cluster immune receptors, enzymes, and signaling molecules into the tetraspanin web. Whereas some tetraspanins (CD81, CD151, CD9) are widely and broadly expressed, others (CD53, CD37, Tssc6) have an expression pattern restricted to hematopoietic cells...
2018: Frontiers in Immunology
Brian M Kennedy, Randall E Harris
We examined the expression of major inflammatory genes, cyclooxygenase-1 and 2 (COX1, COX2) and arachidonate 5-lipoxygenase (ALOX5) in 1090 tumor samples of invasive breast cancer from The Cancer Genome Atlas (TCGA). Mean cyclooxygenase expression (COX1 + COX2) ranked in the upper 99th percentile of all 20,531 genes and surprisingly, the mean expression of COX1 was more than tenfold higher than COX2. Highly significant correlations were observed between COX2 with eight tumor-promoting genes (EGR2, IL6, RGS2, B3GNT5, SGK1, SLC2A3, SFRP1 and ETS2) and between ALOX5 and ten tumor promoter genes (CD33, MYOF1, NLRP1, GAB3, CD4, IFR8, CYTH4, BTK, FGR, CD37)...
May 7, 2018: Inflammopharmacology
Angelique L W M M Rops, Erik Jansen, Alie van der Schaaf, Elmar Pieterse, Nils Rother, Julia Hofstra, Henry B P M Dijkman, Anne-Els van de Logt, Jack Wetzels, Johan van der Vlag, Annemiek B van Spriel
Immunoglobulin A (IgA) nephropathy (IgAN), the most common glomerulonephritis worldwide, is characterized by IgA depositions in the kidney. Deficiency of CD37, a leukocyte-specific tetraspanin, leads to spontaneous development of renal pathology resembling IgAN. However, the underlying molecular mechanism has not been resolved. Here we found that CD37 expression on B cells of patients with IgAN was significantly decreased compared to B cells of healthy donors. Circulating interleukin (IL)-6 levels, but not tumor necrosis factor-α or IL-10, were elevated in Cd37-/- mice compared to wild-type mice after lipopolysaccharide treatment...
June 2018: Kidney International
Caroline Stokke, Johan Blakkisrud, Ayca Løndalen, Jostein Dahle, Anne C T Martinsen, Harald Holte, Arne Kolstad
PURPOSE: 177 Lu-lilotomab satetraxetan is a novel anti-CD37 antibody radionuclide conjugate for the treatment of non-Hodgkin lymphoma (NHL). Four arms with different combinations of pre-dosing and pre-treatment have been investigated in a first-in-human phase 1/2a study for relapsed CD37+ indolent NHL. The aim of this work was to determine the tumor and normal tissue absorbed doses for all four arms, and investigate possible variations in the ratios of tumor to organs-at-risk absorbed doses...
July 2018: European Journal of Nuclear Medicine and Molecular Imaging
Anastasios Stathis, Ian W Flinn, Sumit Madan, Kami Maddocks, Arnold Freedman, Steven Weitman, Emanuele Zucca, Mihaela C Munteanu, M Lia Palomba
Background CD37 is expressed on B-cell lymphoid malignancies, thus making it an attractive candidate for targeted therapy in non-Hodgkin lymphoma (NHL). IMGN529 is an antibody-drug conjugate comprising a CD37-binding antibody linked to the maytansinoid DM1, a potent anti-mitotic agent. Methods This first-in-human, phase 1 trial recruited adult patients with relapsed or refractory B-cell NHL. The primary objective was to determine the maximum tolerated dose (MTD) and recommended phase 2 dose. Secondary objectives were to evaluate safety, pharmacokinetics, and preliminary clinical activity...
October 2018: Investigational New Drugs
Magdalena Witkowska, Piotr Smolewski, Tadeusz Robak
While chemotherapy still remains a cornerstone of oncologic therapy, immunotherapy with monoclonal antibodies has steadily improved the treatment strategy for several hematologic malignancies. New treatment options need to be developed for relapsed and refractory non-Hodgkin lymphoma (NHL) patients. Currently, novel agents targeting specific molecules on the surface of lymphoma cells, such as anti-CD37 antibodies, are under considerable investigation. Here we report on anti-CD37 targeting for the treatment of patients with B-cell NHL...
February 2018: Expert Opinion on Investigational Drugs
Fen Lin, Liye Yang, Min Lin, Xiangbian Zheng, Min Lu, Meilan Qiu, Liejun Li, Longxu Xie
OBJECTIVE: To detect rare types of thalassemia mutations among southern Chinese population. METHODS: Peripheral blood samples from 327 patients from various regions of southern China were collected. The patients were suspected as rare-type thalassemia for their inconsistency between hematological phenotypes and results of routine mutation screening. The samples were further analyzed with GAP-PCR and DNA sequencing. RESULTS: One hundred and eight cases were diagnosed as rare types of thalassemia...
December 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
Chun-Chi Chen, Shiow-Her Chiou, Cheng-Lin Yang, Kuan-Chih Chow, Tze-Yi Lin, Hui-Wen Chang, Weir-Chiang You, Hisu-Wen Huang, Chien-Min Chen, Nien-Cheng Chen, Fen-Pi Chou, Ming-Chih Chou
Loss of immunosurveillance is a major cause of cancer progression. Here, we demonstrate that gelsolin, a constituent of ejaculate, induces apoptosis of activated lymphocytes in prostate cancer. Gelsolin was highly expressed in prostate cancer cells, and was associated with tumor progression, recurrence, metastasis, and poor prognosis. In vitro , secreted gelsolin inactivated CD4+ T cells by binding to CD37, and induced apoptosis of activated CD8+ T lymphocytes by binding to Fas ligand during cell contact dependent on major histocompatibility complex I...
September 29, 2017: Oncotarget
Ladan Khodadoost, Haitham Hussain, Peter Mullany
Broad host range conjugative plasmids that replicate in Escherichia coli have been widely used to mobilise smaller replicons, bearing their cognate origin of transfer (oriT) into a variety of organisms that are less tractable genetically, such as Clostridium (Clostridioides) difficile. In this work we demonstrated that the oriT region of pMTL9301 (derived from RK2) is not required for transfer between E. coli and C. difficile strains 630Δerm and CD37 and that this oriT-independent transfer is abolished in the presence of DNase when CD37 is the recipient...
November 15, 2017: FEMS Microbiology Letters
Malou Zuidscherwoude, Kuntal Worah, Alie van der Schaaf, Sonja I Buschow, Annemiek B van Spriel
Dendritic cells (DCs), which are essential for initiating immune responses, are comprised of different subsets. Tetraspanins organize dendritic cell membranes by facilitating protein-protein interactions within the so called tetraspanin web. In this study we analyzed expression of the complete tetraspanin superfamily in primary murine (CD4+, CD8+, pDC) and human DC subsets (CD1c+, CD141+, pDC) at the transcriptome and proteome level. Different RNA and protein expression profiles for the tetraspanin genes across human and murine DC subsets were identified...
2017: PloS One
Stuart W Hicks, Katharine C Lai, L Cristina Gavrilescu, Yong Yi, Surina Sikka, Prerak Shah, Meghan E Kelly, Jenny Lee, Leanne Lanieri, Jose F Ponte, Callum M Sloss, Angela Romanelli
Naratuximab emtansine (IMGN529) is an investigational antibody-drug conjugate consisting of a CD37-targeting antibody conjugated to the maytansine-derived microtuble disruptor, DM1. IMGN529 has shown promising preclinical and clinical activity in non-Hodgkin lymphoma, including diffuse large B-cell lymphoma (DLBCL). Due to the aggressive nature of the disease, DLBCL is often treated with combination therapies to maximize clinical outcomes; therefore, we investigated the potential of combining IMGN529 with both standard-of-care and emerging therapies against multiple oncology-relevant targets and pathways...
September 2017: Neoplasia: An International Journal for Oncology Research
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