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https://www.readbyqxmd.com/read/28811973/nk-cell-dysfunction-in-chronic-lymphocytic-leukemia-is-associated-with-loss-of-the-mature-cells-expressing-inhibitory-killer-cell-ig-like-receptors
#1
Alexander W MacFarlane, Mowafaq Jillab, Mitchell R Smith, R Katherine Alpaugh, Marion E Cole, Samuel Litwin, Michael M Millenson, Tahseen Al-Saleem, Adam D Cohen, Kerry S Campbell
A prospective analysis of natural killer (NK) cell phenotype and function was performed on fresh peripheral blood samples from untreated patients with B-cell chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). Compared to healthy controls, CD56(dim) NK cells in CLL patients displayed reduced expression of the NKG2D activating receptor and increased CD27 expression, which indicates declines in mature cells. In addition, NK cells from CLL patients showed reduced degranulation responses toward transformed B cells alone or with rituximab and were more sensitive to activation-induced cell death...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28802891/time-to-second-line-treatment-and-subsequent-relative-survival-in-older-patients-with-relapsed-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma
#2
Eric M Ammann, Tait D Shanafelt, Melissa C Larson, Kara B Wright, Bradley D McDowell, Brian K Link, Elizabeth A Chrischilles
BACKGROUND: Novel targeted therapies offer excellent short-term outcomes in patients with chronic lymphocytic leukemia and small lymphocytic lymphoma (CLL/SLL). However, there is disagreement over how widely these therapies should be used in place of standard chemo-immunotherapy (CIT). We investigated whether stratification on the length of the interval between first-line (T1) and second-line (T2) treatments could identify a subgroup of older patients with relapsed CLL/SLL with an expectation of normal overall survival, and for whom CIT could be an acceptable treatment choice...
July 19, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28797620/extended-follow-up-of-patients-treated-with-bendamustine-for-lymphoid-malignancies
#3
Mara Penne, Maryam Sarraf Yazdy, Kruti Sheth Nair, Bruce D Cheson
INTRODUCTION: Bendamustine, typically in combination with rituximab, is an effective treatment for chronic lymphocytic leukemia (CLL) and B-cell non-Hodgkin lymphoma. Despite its acceptable short-term toxicity profile, long-term toxicities are less well established. This study investigated the long-term adverse effects of bendamustine and responses to subsequent treatments. PATIENTS AND METHODS: Charts of 194 patients were retrospectively reviewed; 54% had received prior treatment (76% attained complete response [CR] or partial response [PR])...
June 30, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28783166/anti-leukemic-activity-of-microrna-26a-in-a-chronic-lymphocytic-leukemia-mouse-model
#4
L D'Abundo, E Callegari, A Bresin, A Chillemi, B K Elamin, P Guerriero, X Huang, E Saccenti, E M A A Hussein, F Casciano, P Secchiero, G Zauli, G A Calin, G Russo, L J Lee, C M Croce, G Marcucci, S Sabbioni, F Malavasi, M Negrini
Dysregulation of microRNAs (miRNAs) plays an important role in the pathogenesis of chronic lymphocytic leukemia (CLL). The Eμ-TCL1 transgenic mouse develops a form of leukemia that is similar to the aggressive type of human B-CLL, and this valuable model has been widely used for testing novel therapeutic approaches. Here, we adopted this model to investigate the potential effects of miR-26a, miR-130an and antimiR-155 in CLL therapy. Improved delivery of miRNA molecules into CLL cells was obtained by developing a novel system based on lipid nanoparticles conjugated with an anti-CD38 monoclonal antibody...
August 7, 2017: Oncogene
https://www.readbyqxmd.com/read/28782884/chronic-lymphocytic-leukemia-2017-update-on-diagnosis-risk-stratification-and-treatment
#5
REVIEW
Michael Hallek
DISEASE OVERVIEW: Chronic lymphocytic leukemia (CLL) is the commonest leukemia in western countries. The disease typically occurs in elderly patients and has a highly variable clinical course. Leukemic transformation is initiated by specific genomic alterations that impair apoptosis of clonal B cells. DIAGNOSIS: The diagnosis is established by blood counts, blood smears, and immunophenotyping of circulating B lymphocytes, which identify a clonal B-cell population carrying the CD5 antigen and B-cell markers...
September 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28780376/retinoic-acid-induction-of-cd1d-expression-primes-chronic-lymphocytic-leukemia-b-cells-for-killing-by-cd8-invariant-natural-killer-t-cells
#6
Yasmeen G Ghnewa, Vincent P O'Reilly, Elisabeth Vandenberghe, Paul V Browne, Anthony M McElligott, Derek G Doherty
Invariant natural killer T (iNKT) cells are cytotoxic T cells that respond to glycolipid antigens presented by CD1d. Therapeutic activation of iNKT cells with α-galactosylceramide (α-GalCer) can prevent and reverse tumor growth in mice and clinical trials involving α-GalCer-stimulated iNKT cells are ongoing in humans. B cells express CD1d, however, we show that CD1d expression is reduced on B cells from patients with chronic lymphocytic leukemia (CLL). B cells from CLL patients pulsed with α-GalCer failed to stimulate cytolytic degranulation by iNKT cell lines, but could present the more potent glycolipid analogue, 7DW8-5...
August 3, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28776453/new-drug-discovery-approaches-targeting-recurrent-mutations-in-chronic-lymphocytic-leukemia
#7
Rupal Tripathi, Eriong Lee-Verges, Morihiro Higashi, Neus Gimenez, Laia Rosich, Monica Lopez-Guerra, Dolors Colomer
Next generation sequencing has provided a comprehensive understanding of the mutational landscape in chronic lymphocytic leukemia (CLL), and new drivers have been identified. Some of these drivers could be pharmacologically targeted to choose the most effective personalized therapy in each CLL patient. Areas covered: In this article, the authors uncover the potential role of new targeted therapies against the most recurrent mutations in CLL as well as the recently approved therapies. The authors also provide their expert opinion and give their perspectives for the future...
August 4, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28766542/-efficacy-of-a-bendamustine-and-rituximab-combination-in-first-line-therapy-for-chronic-lymphocytic-leukemia-results-of-the-ben-001-study
#8
E A Stadnik, V V Strugov, T O Andreeva, Yu V Virts, A M Rumyantsev, Yu V Mirolyubova, P A Butylin, A Yu Zaritsky
AIM: To evaluate the efficacy and safety of the BR regimen containing bendamustine in patients with chronic lymphocytic leukemia (CLL) who have not previously received specific therapy. SUBJECTS AND METHODS: The results of the Russian prospective observational multicenter study BEN-001 (2012-2015) covering 196 CLL patients from 34 centers of the Russian Federation were analyzed. The diagnosis was confirmed by the results of peripheral blood lymphocyte immunophenotyping...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28766389/pharmacokinetics-efficacy-and-safety-of-the-rituximab-biosimilar-ct-p10
#9
Bertrand Coiffier
Rituximab, an anti-CD20 monoclonal antibody, is a key therapeutic in the treatment of B cell lymphomas and rheumatoid arthritis (RA). Global rates of non-Hodgkin's lymphoma (NHL), chronic lymphocytic leukemia (CLL) and RA are increasing, with a concomitant rise in individual and overall treatment costs. As such, biosimilar development may help facilitate greater access to treatment. The rituximab biosimilar CT-P10 (Truxima®) has recently received approval in Europe and South Korea for all indications held by reference rituximab (RTX)...
August 2, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28762081/ibrutinib-versus-previous-standard-of-care-an-adjusted-comparison-in-patients-with-relapsed-refractory-chronic-lymphocytic-leukaemia
#10
Lotta Hansson, Anna Asklid, Joris Diels, Sandra Eketorp-Sylvan, Johanna Repits, Frans Søltoft, Ulrich Jäger, Anders Österborg
This study explored the relative efficacy of ibrutinib versus previous standard-of-care treatments in relapsed/refractory patients with chronic lymphocytic leukaemia (CLL), using multivariate regression modelling to adjust for baseline prognostic factors. Individual patient data were collected from an observational Stockholm cohort of consecutive patients (n = 144) diagnosed with CLL between 2002 and 2013 who had received at least second-line treatment. Data were compared with results of the RESONATE clinical trial...
July 31, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28751992/prostatic-like-syndrome-in-a-woman-with-chronic-lymphocytic-leukemia-sequential-kinase-inhibitor-therapy
#11
Diego Velasco-Rodríguez, Miguel Piris-Villaespesa, Carmen Soteras, Ana Vallés, José Antonio García-Marco, José Antonio García-Vela
Chronic lymphocytic leukemia (CLL) is an incurable lymphoproliferative disorder with a heterogeneous genetic and clinical course. Two kinase inhibitors, ibrutinib and idelalisib, have demonstrated achievement of complete and durable remissions in relapse/refractory genetically unselected CLL patients. We present a case of relapsed CLL with extensive disease and hourglass deformity of urinary bladder as a result of the compression of two extraperitoneal paravesical soft tissue bulky masses, with excellent response to sequential kinase inhibitor therapy...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28751718/two-mouse-models-reveal-an-actionable-parp1-dependence-in-aggressive-chronic-lymphocytic-leukemia
#12
Gero Knittel, Tim Rehkämper, Darya Korovkina, Paul Liedgens, Christian Fritz, Alessandro Torgovnick, Yussor Al-Baldawi, Mona Al-Maarri, Yupeng Cun, Oleg Fedorchenko, Arina Riabinska, Filippo Beleggia, Phuong-Hien Nguyen, F Thomas Wunderlich, Monika Ortmann, Manuel Montesinos-Rongen, Eugen Tausch, Stephan Stilgenbauer, Lukas P Frenzel, Marco Herling, Carmen Herling, Jasmin Bahlo, Michael Hallek, Martin Peifer, Reinhard Buettner, Thorsten Persigehl, H Christian Reinhardt
Chronic lymphocytic leukemia (CLL) remains an incurable disease. Two recurrent cytogenetic aberrations, namely del(17p), affecting TP53, and del(11q), affecting ATM, are associated with resistance against genotoxic chemotherapy (del17p) and poor outcome (del11q and del17p). Both del(17p) and del(11q) are also associated with inferior outcome to the novel targeted agents, such as the BTK inhibitor ibrutinib. Thus, even in the era of targeted therapies, CLL with alterations in the ATM/p53 pathway remains a clinical challenge...
July 28, 2017: Nature Communications
https://www.readbyqxmd.com/read/28750119/minimal-residual-disease-in-chronic-lymphocytic-leukemia-in-the-era-of-novel-agents-a-review
#13
Meghan Thompson, Danielle Brander, Chadi Nabhan, Anthony Mato
Importance: The landscape of chronic lymphocytic leukemia (CLL) treatment has changed considerably since the first reported assessment of minimal residual disease (MRD) by flow cytometry in 1992. Chemoimmunotherapy (CIT) combinations have become the standard of care for most patients, and novel targeted agents are rapidly being incorporated into the front-line and relapsed settings. Minimal residual disease status has been shown to be a predictor of both progression-free survival (PFS) and overall survival (OS) at the time of response assessment following CIT, but less is known about the relationship between MRD and outcomes after novel oral therapeutics...
July 27, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28747208/ga101-obinutuzumab-monoclonal-antibody-as-consolidation-therapy-in-cll-galactic-trial-study-protocol-for-a-phase-ii-iii-randomised-controlled-trial
#14
Jamie B Oughton, Laura Collett, Dena R Howard, Anna Hockaday, Talha Munir, Kathryn McMahon, Lucy McParland, Claire Dimbleby, David Phillips, Andy C Rawstron, Peter Hillmen
BACKGROUND: Chronic lymphocytic leukaemia (CLL) is the most common adult leukaemia. Achieving minimal residual disease (MRD) negativity in CLL is an independent predictor of survival even with a variety of different treatment approaches and regardless of the line of therapy. METHODS/DESIGN: GA101 (obinutuzumab) monocLonal Antibody as Consolidation Therapy In CLL (GALACTIC) is a seamless phase II/III, multi-centre, randomised, controlled, open, parallel-group trial for patients with CLL who have recently responded to chemotherapy...
July 26, 2017: Trials
https://www.readbyqxmd.com/read/28744752/radiotherapy-for-ductal-carcinoma-in-situ-and-risk-of-second-non-breast-cancers
#15
Diana R Withrow, Lindsay M Morton, Rochelle E Curtis, Sara J Schonfeld, Amy Berrington de González
PURPOSE: Radiotherapy for ductal carcinoma (DCIS) is increasing, but the risks and benefits of the treatment remain uncertain. We aimed to investigate the relationship between radiotherapy for DCIS and risk of second non-breast cancers in a large US cohort. METHODS: We conducted a retrospective cohort study of 52,556 women in 12 U.S. population-based cancer registries diagnosed with first primary DCIS during 1992-2008 at age 25-79 years. We estimated relative risks (RRs), attributable risks (AR), and excess absolute risks (EAR) of second non-breast cancers associated with radiotherapy using Poisson regression adjusted for age at year of diagnosis, grade, hormonal therapy (yes/no or unknown), and time since diagnosis...
July 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28737232/chlorinated-adenosine-analogue-induces-ampk-and-autophagy-in-chronic-lymphocytic-leukaemia-cells-during-therapy
#16
Christine M Stellrecht, Lisa S Chen, Mary L Ayres, Jennifer B Dennison, Shujun Shentu, Yuling Chen, Michael J Keating, William G Wierda, Varsha Gandhi
8-chloro-adenosine (8-Cl-Ado) is currently in phase-I clinical trials for acute myeloid leukaemia and chronic lymphocytic leukaemia (CLL). Previously, we demonstrated that treatment with 8-Cl-Ado leads to diminished ATP levels. We hypothesized that AMP-activated protein kinase (AMPK) signalling would be initiated in these cells, leading to induction of autophagy. AMPK activation and induction of autophagy were demonstrated during preclinical incubations in CLL cells with the analogues. Importantly, we extended similar observations in CLL lymphocytes during an 8-Cl-Ado phase-I trial...
July 24, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28728469/characterizing-patients-with-multiple-chromosomal-aberrations-detected-by-fish-in-chronic-lymphocytic-leukemia
#17
Isabel González-Gascón Y Marín, María Hernández-Sanchez, Ana Eugenia Rodríguez-Vicente, Anna Puiggros, Rosa Collado, Elisa Luño, Teresa González, Neus Ruiz-Xivillé, Margarita Ortega, Eva Gimeno, Carolina Muñoz, Maria Stefania Infante, Julio Delgado, María Teresa Vargas, Marcos González, Francesc Bosch, Blanca Espinet, Jesús María Hernández-Rivas, José Ángel Hernández
We analyzed the features of chronic lymphocytic leukemia (CLL) with multiple abnormalities (MA) detected by FISH. A local database including 2095 CLL cases was used and 323 with MA (15.4%) were selected. MA was defined by the presence of two or more alterations (deletions of 13q14 (13q-), 11q22 (11q-), 17p13 (17p-) or trisomy 12 (+12)). The combination of 13q- with 11q- and 13q- with 17p-, accounted for 58.2% of the series, in contrast to 11q- with 17p- (3.7%). Patients carrying MA since diagnosis presented a short time to first therapy(TTFT) (27 months) and overall survival (OS) (76 months)...
July 21, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28726646/the-prognostic-significance-of-combaind-expression-of-zap-70-and-cd38-in-chronic-lymphocytic-leukemia
#18
T Kirtava, T Vatsadze, E Azrmaiparashili, D Ghirdaladze
Our aim was to assess the inter links of the markers CD38 and ZAP-70 based on our materials, the attitude according to the disease stage, and to document which of them had leading meaning for prognosis and treatmend of the disease. In our study we have used flow cytometry for detection CD38 and ZAP-70+ markers expression. (58 patients to assessments their prognostic value in сhronic lymphocytic leukemia (CLL), Correlation to Rai stages and relationships between this markers and outcome of therapy). We divided all patients in two groups based on level of ZAP-70+ cell and CD38+cells,(I group-patients) ZAP-70+ cells <20% CD38+<30% and ZAP-70+ cells >20% and CD38>30%,(II group) becaus our in investigation shows, that ZAP -70+ is very importance independent prognoctic marker as why in ZAP-70+ cases when its number was <20%, patients had favorable prognosis - the big part of them (13(40...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28724540/targeting-bcl-2-in-b-cell-lymphomas
#19
Matthew S Davids
The B-cell leukemia/lymphoma-2 (BCL-2) family of proteins governs the intrinsic pathway of mitochondrial apoptosis. Dysregulation of BCL-2 has long been known to be a crucial part of the pathophysiology of B-cell lymphomas, yet several early attempts to target this pathway therapeutically were unsuccessful due to toxicity, lack of efficacy, or both. Recently, a highly potent and selective oral BCL-2 antagonist, venetoclax, was approved in chronic lymphocytic leukemia (CLL), where it has proven to be highly active, even in patients with high risk del(17p) disease...
July 19, 2017: Blood
https://www.readbyqxmd.com/read/28720054/impact-of-novel-agents-on-patient-relevant-outcomes-in-patients-with-previously-untreated-cll-who-are-not-eligible-for-fludarabine-based-therapy
#20
Moushmi Singh, Stuart Mealing, Simona Baculea, Sarah Cote, Jo Whelan
BACKGROUND: Chronic lymphocytic leukemia (CLL) is an orphan disease that primarily affects the elderly. The majority of symptomatic patients eligible for frontline treatment are unfit for fludarabine based chemoimmunotherapy. Historical treatment includes chlorambucil (Chl), bendamustine/rituximab (BR), and chlorambucil/rituximab/ChlR combination. Clinical guidelines now recommend the use of novel agents, such as ibrutinib (Ibr), in both frontline and relapse settings and other novel agents, such as idelalisib (with rituximab), in relapse settings...
July 19, 2017: Journal of Medical Economics
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