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https://www.readbyqxmd.com/read/28811071/biological-evaluation-of-2-pyrazolinyl-1-carbothioamide-derivatives-against-hct116-human-colorectal-cancer-cell-lines-and-elucidation-on-qsar-and-molecular-binding-modes
#1
Beom Soo Kim, Soon Young Shin, Seunghyun Ahn, Dongsoo Koh, Young Han Lee, Yoongho Lim
In the search of compounds exhibiting anticancer activity, 37 derivatives of 2-pyrazolinyl-1-carbothioamide were designed and synthesized. Clonogenic cell survival assays were adapted to measure the cytotoxicities of the synthetic derivatives against HCT116 human colon cancer cell lines. Half-maximal cell growth inhibitory concentrations (GI50) ranged from 0.49 to 41.22µM. The compound with the lowest GI50 value, 3-(2-hydroxy-4,5-dimethoxyphenyl)-5-(naphthalen-1-yl)-N-(3,4,5-trimethoxyphenyl)-pyrazolinyl-1-carbothioamide, was subjected to further biological studies, including cell viability and apoptosis assays to examine levels of annexin-V in the outer plasma membrane layer and poly ADP-ribose polymerase cleavage...
August 4, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28797508/hematopoietic-tumors-primarily-presenting-in-bone
#2
REVIEW
Arjen H G Cleven, Pancras C W Hogendoorn
Hematologic neoplasms that primarily present in bone are rare; this article describes the most common examples of hematologic tumors primarily presenting in bone, including plasma cell myeloma, solitary plasmacytoma of bone, primary non-Hodgkin lymphoma of bone, acute lymphoblastic leukemia/lymphoma, and Langerhans cell histiocytosis. The macroscopic and microscopic features, differential diagnosis, diagnostic workup, and prognosis of all these different entities are discussed, with special emphasis on common differential diagnosis...
September 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/28760306/high-risk-multiple-myeloma-definition-and-management
#3
REVIEW
Nisha S Joseph, Silvia Gentili, Jonathan L Kaufman, Sagar Lonial, Ajay K Nooka
The prognosis of patients with multiple myeloma has significantly improved after the introduction of novel concepts of immunomodulation and proteasome inhibition in myeloma therapies. In conjunction with the use of high-dose therapy and autologous stem cell transplantation, these newer antimyeloma agents facilitated the augmentation of deeper responses and as a result, enhanced survival outcomes. Despite mounting clinical evidence that novel therapies may mitigate the poor prognostic impact of some predictors historically considered "harbingers of doom" in myeloma such as t(4;14), the benefit of these advances is less evident in patients who present with genetically defined high-risk features such as presence of chromosomal abnormalities del17p, t(14;16), or t(14;20), or among patients presenting with plasma cell leukemia...
July 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28758008/bilateral-extramedullary-adrenal-plasmacytoma-case-report-and-review-of-the-literature
#4
REVIEW
Philip J Townend, Gabriel Kraus, Luke Coyle, David Nevell, Anton Engelsman, Stan B Sidhu
Extramedullary plasmacytoma (EMP) accounts for only 3% of plasma cell malignancies; others include multiple myeloma, plasma cell leukemia and solitary plasmacytoma of bone. The majority of EMPs are found in the upper respiratory tract. Other sites include the GI tract, bladder, CNS, thyroid, breast, testes, parotid gland, lymph nodes and skin. There are eight cases in the literature of adrenal plasmacytoma, however, only two were bilateral. We describe our recent experience of bilateral adrenal plasmacytoma and review of the literature...
May 2017: International Journal of Endocrine Oncology
https://www.readbyqxmd.com/read/28754746/tumor-derived-exosomes-modulate-pd-l1-expression-in-monocytes
#5
Franziska Haderk, Ralph Schulz, Murat Iskar, Laura Llaó Cid, Thomas Worst, Karolin V Willmund, Angela Schulz, Uwe Warnken, Jana Seiler, Axel Benner, Michelle Nessling, Thorsten Zenz, Maria Göbel, Jan Dürig, Sven Diederichs, Jérôme Paggetti, Etienne Moussay, Stephan Stilgenbauer, Marc Zapatka, Peter Lichter, Martina Seiffert
In chronic lymphocytic leukemia (CLL), monocytes and macrophages are skewed toward protumorigenic phenotypes, including the release of tumor-supportive cytokines and the expression of immunosuppressive molecules such as programmed cell death 1 ligand 1 (PD-L1). To understand the mechanism driving protumorigenic skewing in CLL, we evaluated the role of tumor cell-derived exosomes in the cross-talk with monocytes. We carried out RNA sequencing and proteome analyses of CLL-derived exosomes and identified noncoding Y RNA hY4 as a highly abundant RNA species that is enriched in exosomes from plasma of CLL patients compared with healthy donor samples...
July 28, 2017: Science Immunology
https://www.readbyqxmd.com/read/28751289/a-new-case-of-ige-multiple-myeloma-with-review-of-literature
#6
Guillaume Vignon, Anne Sophie Cognée, François Carrere, Isabelle Masson, Florence Borde, Pierre Frédéric Augereau, Philippe Aucher, Franck Lellouche
IgE myeloma is an extremely rare disease characterized by frequent plasma cell leukemia, little monoclonal-spike on electrophoresis, an high incidence of t(11;14) translocation and a worse survival than those with common myelomas. We report here a new case of IgE myeloma and discuss clinical presentation, biological features and therapeutic option.
August 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28745329/involvement-of-maf-spp1-axis-in-the-development-of-bone-marrow-fibrosis-in-pmf-patients
#7
S Ruberti, E Bianchi, P Guglielmelli, S Rontauroli, G Barbieri, L Tavernari, T Fanelli, R Norfo, V Pennucci, G C Fattori, C Mannarelli, N Bartalucci, B Mora, L Elli, M A Avanzini, C Rossi, S Salmoiraghi, R Zini, S Salati, Z Prudente, V Rosti, F Passamonti, A Rambaldi, S Ferrari, E Tagliafico, A M Vannucchi, R Manfredini
Primary Myelofibrosis (PMF) is a myeloproliferative neoplasm characterized by hyperplastic megakaryopoiesis and myelofibrosis. We recently described the upregulation of MAF in PMF CD34+ hematopoietic progenitor cells (HPCs) compared to healthy donor. Here we demonstrated that MAF is also upregulated in PMF compared to Essential Thrombocytemia (ET) and Polycytemia Vera (PV) HPCs. MAF overexpression and knockdown experiments shed some light into the role of MAF in PMF pathogenesis, by demonstrating that MAF favours the megakaryocyte and monocyte/macrophage commitment of HPCs and leads to the increased expression of proinflammatory and profibrotic mediators...
July 12, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28744022/granulocyte-colony-stimulating-factor-gcsf-fused-with-fc-domain-produced-from-e-coli-is-less-effective-than-polyethylene-glycol-conjugated-gcsf
#8
Bich Hang Do, Hyo Jeong Kang, Jung-A Song, Minh Tan Nguyen, Sangsu Park, Jiwon Yoo, Anh Ngoc Nguyen, Grace G Kwon, Jaepyeong Jang, Mihee Jang, Sunju Lee, Seoungjun So, Seongrak Sim, Kyung Jin Lee, Mark J Osborn, Han Choe
Human granulocyte colony-stimulating factor (GCSF) is a well-known cytokine for neutropenia treatment. However, daily injections are required due to the short circulating half-life of the protein. To overcome this bottleneck, we fused GCSF with the Fc domain of IgG1 at the C terminus (GCSF-Fc) and with the maltose binding protein (MBP) tag at the N-terminus and expressed it as a soluble protein in the cytoplasm of E. coli. We also conjugated PEG aldehyde to GCSF to make PEG-GCSF. The bioactivities of GCSF-Fc and PEG-GCSF were similar to native GCSF using the mouse M-NFS-60 myelogenous leukemia cell line...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28742650/reliable-and-easy-to-use-liquid-chromatography-tandem-mass-spectrometry-method-for-simultaneous-analysis-of-fluconazole-isavuconazole-itraconazole-hydroxy-itraconazole-posaconazole-and-voriconazole-in-human-plasma-and-serum
#9
Carsten Müller, David Gehlen, Cornelia Blaich, Domenik Prozeller, Blasius Liss, Thomas Streichert, Martin H J Wiesen
BACKGROUND: A fast and easy-to-use liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the determination and quantification of six triazoles (fluconazole (FLZ), isavuconazole (ISZ), itraconazole (ITZ), hydroxy-itraconazole (OH-ITZ), posaconazole (PSZ), voriconazole (VRZ)) in human plasma and serum was developed and validated for therapeutic drug monitoring (TDM). METHODS: Sample preparation was based on protein precipitation with acetonitrile and subsequent centrifugation...
July 24, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28716148/prevalence-of-plasma-autoantibody-against-cancer-testis-antigen-ny-eso-1-in-htlv-1-infected-individuals-with-different-clinical-status
#10
Yasuo Shiohama, Tadasuke Naito, Toshio Matsuzaki, Reiko Tanaka, Takeaki Tomoyose, Hiroshi Takashima, Takuya Fukushima, Yuetsu Tanaka, Mineki Saito
BACKGROUND: Detection of specific immune responses against cancer/testis antigen NY-ESO-1 was recently reported in patients with adult T-cell leukemia/lymphoma (ATL) and human T-cell leukemia virus type 1 (HTLV-1)-infected asymptomatic carriers (ACs). However, the relationship of the responses with the HTLV-1 proviral load (PVL) and the levels of viral gene expression remain unclear. FINDINGS: We measured plasma levels of autoantibodies to NY-ESO-1 immunogenic tumor antigen in HTLV-1-infected individuals with different clinical status, and in healthy controls...
July 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/28711674/hplc-hg-afs-determination-of-arsenic-species-in-acute-promyelocytic-leukemia-apl-plasma-and-blood-cells
#11
Meihua Guo, Wenjing Wang, Xin Hai, Jin Zhou
Arsenic trioxide (ATO) has been successfully used in the treatment of acute promyelocytic leukemia (APL). To clarify the arsenic species in APL patients, high performance liquid chromatography-hydride generation-atomic fluorescence spectrometry (HPLC-HG-AFS) and HG-AFS methods were developed and validated to quantify the plasma concentrations of inorganic arsenic (As(III) and As(V)) and methylated metabolites (MMA and DMA), and the total amounts of arsenic in blood cells and plasma. Blood cells and plasma were digested with mixtures of HNO3H2O2 and analyzed by HG-AFS...
July 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28705862/diagnosing-therapy-related-acute-myeloid-leukemia-with-8-blasts-in-bone-marrow-with-concomitant-plasma-cell-myeloma
#12
Beenu Thakral, Tariq Muzzafar
No abstract text is available yet for this article.
July 13, 2017: Blood
https://www.readbyqxmd.com/read/28702160/bk-virus-associated-hemorrhagic-cystitis-in-patients-with-allogeneic-hematopoietic-cell-transplantation-report-of-three-cases
#13
Duygu Mert, Hikmetullah Batgi, Alparslan Merdin, Sabahat Çeken, Mehmet Sinan Dal, Emre Tekgündüz, Fevzi Altuntaş, Mustafa Ertek
BK viras is a human polyoma viras. It is acquired in early childhood and remains life-long latent in the genitourinary system. BK virus replication is more common in receiving immunosuppressive therapy receiving patients and transplant patients. BK virus could cause hemorrhagic cystitis in patients with allogeneic stem cell transplantation. Hemorrhagic cystitis is a serious complication of hematopoietic stem cell transplantation. Hemorrhagic cystitis could cause morbidity and long stay in the hospital. Diagnosis is more frequently determined by the presence of BK virus DNA detected with quantitative or real-time PCR testing in serum or plasma and less often in urine...
June 1, 2017: Hematology Reports
https://www.readbyqxmd.com/read/28700330/translocation-of-heme-oxygenase-1-contributes-to-imatinib-resistance-in-chronic-myelogenous-leukemia
#14
Bianca Schaefer, Soenke Behrends
Heme oxygenase-1 (HO-1) degrades heme to bilirubin. In addition, it is upregulated in malignant disease and has been described as an important factor for cancer prognosis and therapy. Under physiological conditions HO-1 is anchored to the endoplasmic reticulum (ER). Under stress conditions HO-1 can be cleaved and subsequently translocates to the cytosol and nucleus.In this study we systematically investigated the influence of HO-1's catabolic activity and subcellular localization on resistance against the tyrosine kinase inhibitor imatinib in leukemia cells by confocal laser scanning microscopy, hemoglobin synthesis experiments and cell viability assays...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28693180/soluble-urokinase-type-plasminogen-activator-receptor-and-urokinase-type-plasminogen-activator-receptor-contribute-to-chemoresistance-in-leukemia
#15
Hong Guo, Lan-Xia Zhou, Haizhen Ma, Bei Liu, Juan Cheng, Yun-Yun Ma, Li Zhao
The soluble urokinase-type plasminogen activator receptor (suPAR) and the urokinase-type plasminogen activator receptor (uPAR) have been proposed as useful biomarkers of tumor progression. Recently, suPAR was associated with chemoresistance in lung cancer. However, its clinical significance in leukemia has not previously been investigated. The present study examined the plasma levels of suPAR and the expression of the uPAR on bone marrow (BM) cells in 86 patients with leukemia at diagnosis prior to chemotherapy and 26 normal subjects (control group)...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28676669/carfilzomib-resistance-due-to-abcb1-mdr1-overexpression-is-overcome-by-nelfinavir-and-lopinavir-in-multiple-myeloma
#16
A Besse, S C Stolze, L Rasche, N Weinhold, G J Morgan, M Kraus, J Bader, H S Overkleeft, L Besse, C Driessen
Proteasome inhibitor carfilzomib has activity superior to bortezomib and is increasingly incorporated in multiple myeloma (MM) frontline therapy and relapsed settings. Most MM patients ultimately experience proteasome inhibitor-refractory disease, an unmet medical need with poorly understood biology and dismal outcome. Pharmacologic targeting of ABCB1 improved patient outcomes, including MM, but suffered from adverse drug effects and insufficient plasma concentrations. Proteomics analysis identified ABCB1 overexpression as the most significant change in carfilzomib-resistant MM cells...
July 5, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28674892/surface-profiling-of-extracellular-vesicles-from-plasma-or-ascites-fluid-using-dotscan-antibody-microarrays
#17
Larissa Belov, Susannah Hallal, Kieran Matic, Jerry Zhou, Sandra Wissmueller, Nuzhat Ahmed, Sumaiya Tanjil, Stephen P Mulligan, O Giles Best, Richard J Simpson, Richard I Christopherson
DotScan antibody microarrays were initially developed for the extensive surface profiling of live leukemia and lymphoma cells. DotScan's diagnostic capability was validated with an extensive clinical trial using mononuclear cells from the blood or bone marrow of leukemia or lymphoma patients. DotScan has also been used for the profiling of surface proteins on peripheral blood mononuclear cells (PBMC) from patients with HIV, liver disease, and stable and progressive B-cell chronic lymphocytic leukemia (CLL)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28668490/co-infections-by-double-stranded-dna-viruses-after-ex-vivo-t-cell-depleted-cd34-selected-hematopoietic-cell-transplantation
#18
Yao-Ting Huang, Seong Jin Kim, Yeon Joo Lee, Daniel Burack, Paige Nichols, Molly Maloy, Miguel-Angel Perales, Sergio A Giralt, Ann A Jakubowski, Genovefa A Papanicolaou
Recipients of ex vivo T cell-depleted (TCD) hematopoietic cell transplantation (HCT) are at risk of infection by double-stranded (ds) DNA viruses. We report rates of dsDNA viremia, end-organ disease (EOD), infection-related mortality, and overall survival (OS) in a contemporary cohort of adult TCD HCT recipients routinely monitored for cytomegalovirus (CMV), adenovirus (ADV), human herpesvirus 6 (HHV6), and Epstein-Barr virus (EBV). Healthcare utilization in the first 6 months post-HCT was compared between patients with dsDNA viremia versus no viremia...
June 28, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28655925/natural-history-of-t-11-14-multiple-myeloma
#19
A Lakshman, M A Moustafa, S V Rajkumar, A Dispenzieri, M A Gertz, F K Buadi, M Q Lacy, D Dingli, A L Fonder, S R Hayman, M A Hobbs, W I Gonsalves, Y L Hwa, P Kapoor, N Leung, R S Go, Y Lin, T V Kourelis, J A Lust, S J Russell, S R Zeldenrust, R A Kyle, S K Kumar
Translocation (11;14) on interphase FISH in plasma cells is regarded as a standard risk prognostic marker in multiple myeloma (MM) based on studies conducted before introduction of current therapies. We identified 365 patients with t(11;14), and 730 matched controls:132 patients with non-(11;14) translocations and 598 with no chromosomal translocation. The median progression-free survival (PFS) for the three groups were 23.0 (95% CI, 20.8-27.6), 19.0 (95% CI, 15.8-22.7) and 28.3 (95% CI, 25.7-30.6) months respectively [P<0...
June 27, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28650467/genome-wide-loss-of-function-genetic-screening-identifies-opioid-receptor-%C3%AE-1-as-a-key-regulator-of-l-asparaginase-resistance-in-pediatric-acute-lymphoblastic-leukemia
#20
S M Kang, J L Rosales, V Meier-Stephenson, S Kim, K Y Lee, A Narendran
L-asparaginase is a critical chemotherapeutic agent for acute lymphoblastic leukemia (ALL). It hydrolyzes plasma asparagine into aspartate and NH3, causing asparagine deficit and inhibition of protein synthesis and eventually, leukemic cell death. However, patient relapse often occurs due to development of resistance. The molecular mechanism by which ALL cells acquire resistance to L-asparaginase is unknown. Therefore, we sought to identify genes that are involved in L-asparaginase resistance in primary leukemic cells...
June 26, 2017: Oncogene
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