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Shaji K Kumar, Betsy R LaPlant, Craig B Reeder, Vivek Roy, Alese E Halvorson, Francis Buadi, Morie A Gertz, P Leif Bergsagel, Angela Dispenzieri, Melanie A Thompson, Jamie Crawley, Prashant Kapoor, Joseph Mikhael, Keith Stewart, Suzanne R Hayman, Yi L Hwa, Wilson Gonsalves, Thomas E Witzig, Sikander Ailawadhi, David Dingli, Ronald S Go, Yi Lin, Candido E Rivera, S Vincent Rajkumar, Martha Q Lacy
Proteasome inhibitors have become an integral part of myeloma therapy. Considerable efforts have gone into optimizing this therapeutic approach in order to obtain maximal proteasome inhibition with least toxicity. Ixazomib is the first oral proteasome inhibitor to enter the clinic and has been studied as a single agent as well as in various combinations. The current trial was designed to examine the efficacy and toxicity of combining two different doses of ixazomib (4 mg and 5.5mg given weekly for 3 of 4 weeks) with 40 mg weekly of dexamethasone, in relapsed myeloma...
October 4, 2016: Blood
Haoyu Li, Zhenghu Chen, Ting Hu, Long Wang, Yang Yu, Yanling Zhao, Wenijing Sun, Shan Guan, Jonathan C Pang, Sarah E Woodfield, Qing Liu, Jianhua Yang
Neuroblastoma (NB) is the most common extracranial malignant solid tumor seen in children and continues to lead to the death of many pediatric cancer patients. The poor outcome in high risk NB is largely attributed to the development of chemoresistant tumor cells. Doxorubicin (dox) has been widely employed as a potent anti-cancer agent in chemotherapeutic regimens; however, it also leads to chemoresistance in many cancer types including NB. Thus, developing novel small molecules that can overcome dox-induced chemoresistance is a promising strategy in cancer therapy...
September 30, 2016: Scientific Reports
L Yang
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Peter M Voorhees, Saad Z Usmani
The advent of the immunomodulatory drugs thalido-mide, lenalidomide, and pomalidomide; the proteasome inhib-itors bortezomib, carfilzomib, and ixazomib; the histone deacet-ylase inhibitor panobinostat; and the monoclonal antibodies elotuzumab and daratumumab has led to dramatic improvements in outcomes for patients with multiple myeloma. Along with progress in nontransplant therapy have come questions regarding the continued role of high-dose melphalan (HDM) supported by autologous stem cell transplant (ASCT) in the treatment of multiple myeloma...
September 2016: Clinical Advances in Hematology & Oncology: H&O
Lisa A Raedler
No abstract text is available yet for this article.
March 2016: American Health & Drug Benefits
Massimo Offidani, Silvia Gentili, Francesca Gay, Elena Aghemo, Laura Maracci, Laura Corvatta, Antonio Palumbo
High-dose therapy (HDT) followed by autologous stem cell transplantation (ASCT) remains the standard of care for patients younger than 65 years of age with multiple myeloma (MM). However, this therapeutic approach has undergone substantial advances in this last decade, mainly due to the introduction of new drugs such as thalidomide, lenalidomide and bortezomib. These new drugs, in different combinations, have shown to significantly increase response rates after induction therapy and ASCT. Moreover, the positive results obtained with these agents in consolidation and maintenance strategies after ASCT strongly support the concept of continuous therapy, whose ultimate goal is the long-term control of the disease and the improvement of outcome...
September 19, 2016: Current Cancer Drug Targets
Laurent Garderet, Gordon Cook, Holger W Auner, Benedetto Bruno, Henk Lokhorst, Jose Antonio Perez-Simon, Firoozeh Sahebi, Christof Scheid, Curly Morris, Anja van Biezen, Mohamad Sobh, Mauricette Michallet, Gösta Gahrton, Stefan Schönland, Nicolaus Kröger
Major improvements have been made in the treatment of myeloma. However, all patients, perhaps with some exceptions, eventually relapse, even after autologous stem cell transplantation (ASCT). In that setting, the combinations of new drugs, namely the IMiDs and the proteasome inhibitors along with steroids, give encouraging results in relapsed patients. The median progression-free survival (PFS) is 20 months with lenalidomide plus dexamethasone plus ixazomib and 26 months with lenalidomide plus dexamethasone plus carfilzomib...
September 21, 2016: Leukemia & Lymphoma
T Jelinek, E Kryukova, Z Kufova, F Kryukov, R Hajek
Proteasome inhibitors are the backbone in the treatment of multiple myeloma with 3 of its representatives (bortezomib, carfilzomib, and ixazomib) having already been approved. There is a different situation altogether in the treatment of amyloid light chain (AL) amyloidosis where owing to the rarity of this entity neither of these drugs has currently gained approval. Amyloid light chain plasma cells are possibly more vulnerable to bortezomib than myeloma plasmocytes because of a slightly distinct mechanism of action, which is described in depth in this manuscript...
September 20, 2016: Hematological Oncology
Junshik Hong, Jae Hoon Lee
Epidemiologically, multiple myeloma (MM) is a malignant disorder of plasma cells with a higher incidence among Western populations than among Asians. However, there is growing evidence of a recent increase in the age-standardized incidence rate (ASR) of MM in Asian countries, particularly Korea. Application of novel agents has resulted in significant improvement of treatment outcomes, and the advances are ongoing with the recent introduction and U.S. Food and Drug Administration's approval of newer agents, including carfilzomib, ixazomib, elotuzumab, and daratumumab...
September 2016: Korean Journal of Internal Medicine
Gina Sanchez, Daniela Berrios, Ivonne Olmedo, Javier Pezoa, Jaime A Riquelme, Luis Montecinos, Zully Pedrozo, Paulina Donoso
Inhibitors of the ubiquitin-proteasome system improve hemodynamic parameters and decrease the infarct size after ischemia reperfusion. The molecular basis of this protection is not fully understood since most available data report inhibition of the 26 proteasome after ischemia reperfusion. The decrease in cellular ATP levels during ischemia leads to the dissociation of the 26S proteasome into the 19S regulatory complex and the 20S catalytic core, which results in protein degradation independently of ubiquitination...
2016: PloS One
A M Rajan, S Kumar
The treatment of multiple myeloma (MM) is rapidly evolving. In the United States, four drugs (panobinostat, ixazomib, daratumumab and elotuzumab) were approved for the treatment of MM in 2015. As a result of improved diagnosis and therapy, there has been a dramatic improvement in the outcome of MM in the last decade, probably more than any other malignancy. Numerous agents continue to be studied in preclinical models and in clinical trials, with many demonstrating clinical efficacy that appears promising enough to have a trajectory for regulatory approval...
2016: Blood Cancer Journal
Romina A Guedes, Patrícia Serra, Jorge A R Salvador, Rita C Guedes
Proteasome emerged as an important target in recent pharmacological research due to its pivotal role in degrading proteins in the cytoplasm and nucleus of eukaryotic cells, regulating a wide variety of cellular pathways, including cell growth and proliferation, apoptosis, DNA repair, transcription, immune response, and signaling processes. The last two decades witnessed intensive efforts to discover 20S proteasome inhibitors with significant chemical diversity and efficacy. To date, the US FDA approved to market three proteasome inhibitors: bortezomib, carfilzomib, and ixazomib...
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Lifeng Yang, Juefeng Wan, Sheng Xiao, Darryll Barkhouse, Ji Zhu, Guichao Li, Bo Lu, Zhen Zhang
The proteasome inhibitor MLN9708 is an orally administered drug that is hydrolyzed into its active form, MLN2238 (ixazomib). Compared with Bortezomib, MLN2238 has a shorter proteasome dissociation half-life and a lower incidence and severity of peripheral neuropathy, which makes it an attractive candidate for colorectal cancer treatment. In the present study, we observed that MLN2238 induced autophagy, as evidenced by conversion of the autophagosomal marker LC3 from LC3I to LC3II, in colorectal cancer cell lines...
2016: American Journal of Cancer Research
Leonard Naymagon, Maher Abdul-Hay
Multiple myeloma (MM) is a disease that affects plasma cells and can lead to devastating clinical features such as anemia, lytic bone lesions, hypercalcemia, and renal disease. An enhanced understanding of MM disease mechanisms has led to new more targeted treatments. There is now a plethora of treatments available for MM. In this review article, our aim is to discuss many of the novel agents that are being studied or have recently been approved for the treatment of MM. These agents include the following: immunomodulators (pomalidomide), proteasome inhibitors (carfilzomib, marizomib, ixazomib, oprozomib), alkylating agents (bendamustine), AKT inhibitors (afuresertib), BTK inhibitors (ibrutinib), CDK inhibitors (dinaciclib), histone deacetylase inhibitors (panobinostat, rocilinostat, vorinostat), IL-6 inhibitors (siltuximab), kinesin spindle protein inhibitors (filanesib), monoclonal antibodies (daratumumab, elotuzumab, indatuximab, SAR650984), and phosphoinositide 3-kinase (PI3K) inhibitors...
2016: Journal of Hematology & Oncology
Jonas Philipp Becker, Jannick Robert Clemens, Dirk Theile, Johanna Weiss
Firefly luciferase-based reporter gene assays are the most commonly used assays to investigate the transcriptional regulation of gene expression. However, direct interaction of tested compounds with the firefly luciferase leading to altered enzymatic activity may lead to misinterpretation of experimental data. When investigating the proteasome inhibitors bortezomib, carfilzomib, and ixazomib, we observed increased luminescence for bortezomib and ixazomib, but not for carfilzomib, in a pregnane-X-receptor (PXR) reporter gene assay, which was inconsistent with the mRNA expression levels of the main PXR target gene CYP3A4...
September 15, 2016: Analytical Biochemistry
Fern E Lawson, J Aubrey Waddell, Dominic A Solimando
The complexity of cancer chemotherapy requires pharmacists be familiar with the complicated regimens and highly toxic agents used. This column reviews various issues related to preparation, dispensing, and administration of antineoplastic therapy, and the agents, both commercially available and investigational, used to treat malignant diseases. Questions or suggestions for topics should be addressed to Dominic A. Solimando, Jr, President, Oncology Pharmacy Services, Inc., 4201 Wilson Blvd #110-545, Arlington, VA 22203, e-mail: OncRxSvc@comcast...
May 2016: Hospital Pharmacy
Dennis J Cada, Jessica Dang, Danial E Baker
Each month, subscribers to The Formulary Monograph Service receive 5 to 6 well-documented monographs on drugs that are newly released or are in late phase 3 trials. The monographs are targeted to Pharmacy & Therapeutics Committees. Subscribers also receive monthly 1-page summary monographs on agents that are useful for agendas and pharmacy/nursing in-services. A comprehensive target drug utilization evaluation/medication use evaluation (DUE/MUE) is also provided each month. With a subscription, the monographs are sent in print and are also available on-line...
April 2016: Hospital Pharmacy
Zsolt Nagy
Multiple myeloma is the most common primary malignant disease of bone marrow. It mainly occurs among elderly people and, according to international databases, it is twice as frequent in men, however in our country this fact cannot be observed because of the high male mortality rate. The presence of this disease increased by more than one and the half times during the last 60 years. The five year survival for multiple myeloma has increased from 25% to 40% since the seventies due to high-dose chemotherapy followed by autologous stem cell transplantation and the new anti-myeloma drugs which were introduced in the last decade, such as immunomodulators (IMiD) like thalidomide, lenalidomide, pomalidomide and proteasome inhibitors (PI) like bortezomib, carfilzomib, ixazomib...
June 6, 2016: Magyar Onkologia
Nagaraju Anreddy, Lori A Hazlehurst
Multiple myeloma (MM) is a malignant plasma cell disorder, clinically characterized by osteolytic lesions, immunodeficiency, and renal disease. Over the past decade, MM therapy is significantly improved by the introduction of novel therapeutics such as immunomodulatory agents (thalidomide, lenalidomide, and pomalidomide), proteasome inhibitors (bortezomib, carfilzomib, and ixazomib), monoclonal antibodies (daratumumab and elotuzumab), histone deacetylase (HDAC) inhibitors (Panobinostat). The clinical success of these agents has clearly identified vulnerabilities intrinsic to the MM cell- as well as targets that emanate from the tumor microenvironment...
June 4, 2016: Journal of Cellular Biochemistry
Hao Wang, Yang Yu, Zheng Jiang, Wen-Ming Cao, Zhenyu Wang, Jun Dou, Yanling Zhao, Yunfu Cui, Hong Zhang
Doxorubicin (Dox), one of the most effective chemotherapy drug for cancer treatment, is limited by its severe side effects and chemoresistance. Dox induces DNA damage and leads to significant proteomic changes in the cancer cells, which makes the ubiquitin-proteasome system a potential target to enhance the efficacy of Dox therapy. The unsuccessful clinical trials of proteasome inhibitor PS-341 (bortezomib) in solid tumors led to the invention of MLN9708 (ixazomib), an orally bioavailable next-generation proteasome inhibitor with improved pharmacokinetic and pharmacodynamic features...
2016: Scientific Reports
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