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https://www.readbyqxmd.com/read/29780462/fluorescent-dyes-and-probes-for-super-resolution-microscopy-of-microtubules-and-tracheoles-in-living-cells-and-tissues
#1
Gražvydas Lukinavičius, Gyuzel Y Mitronova, Sebastian Schnorrenberg, Alexey N Butkevich, Hannah Barthel, Vladimir N Belov, Stefan W Hell
We introduce fluorogenic tubulin probes based on the recently reported fluorescent dyes (510R, 580CP, GeR and SiR) and chemotherapy agents - taxanes (docetaxel, cabazitaxel and larotaxel). The cytotoxicity of the final probe, its staining performance and specificity strongly depend on both components. We found correlation between the aggregation efficiency (related to the spirolactonization of fluorophore) and cytotoxicity. Probe optimization allowed us to reach 29 ± 11 nm resolution in stimulated emission depletion (STED) microscopy images of the microtubule network in living human fibroblasts...
April 7, 2018: Chemical Science
https://www.readbyqxmd.com/read/29777112/micrornas-as-potential-therapeutics-to-enhance-chemosensitivity-in-advanced-prostate-cancer
#2
Hui-Ming Lin, Iva Nikolic, Jessica Yang, Lesley Castillo, Niantao Deng, Chia-Ling Chan, Nicole K Yeung, Eoin Dodson, Benjamin Elsworth, Calan Spielman, Brian Y Lee, Zoe Boyer, Kaylene J Simpson, Roger J Daly, Lisa G Horvath, Alexander Swarbrick
Docetaxel and cabazitaxel are taxane chemotherapy treatments for metastatic castration-resistant prostate cancer (CRPC). However, therapeutic resistance remains a major issue. MicroRNAs are short non-coding RNAs that can silence multiple genes, regulating several signalling pathways simultaneously. Therefore, synthetic microRNAs may have therapeutic potential in CRPC by regulating genes involved in taxane response and minimise compensatory mechanisms that cause taxane resistance. To identify microRNAs that can improve the efficacy of taxanes in CRPC, we performed a genome-wide screen of 1280 microRNAs in the CRPC cell lines PC3 and DU145 in combination with docetaxel or cabazitaxel treatment...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29752180/-177-lu-psma-617-radionuclide-treatment-in-patients-with-metastatic-castration-resistant-prostate-cancer-lupsma-trial-a-single-centre-single-arm-phase-2-study
#3
Michael S Hofman, John Violet, Rodney J Hicks, Justin Ferdinandus, Sue Ping Thang, Tim Akhurst, Amir Iravani, Grace Kong, Aravind Ravi Kumar, Declan G Murphy, Peter Eu, Price Jackson, Mark Scalzo, Scott G Williams, Shahneen Sandhu
BACKGROUND: Progressive metastatic castration-resistant prostate cancer is a highly lethal disorder and new effective therapeutic agents that improve patient outcomes are urgently needed. Lutetium-177 [177 Lu]-PSMA-617, a radiolabelled small molecule, binds with high affinity to prostate-specific membrane antigen (PSMA) enabling beta particle therapy targeted to metastatic castration-resistant prostate cancer. We aimed to investigate the safety, efficacy, and effect on quality of life of [177 Lu]-PSMA-617 in men with metastatic castration-resistant prostate cancer who progressed after standard treatments...
May 7, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29750396/a-phase-1-2-dose-finding-safety-and-activity-study-of-cabazitaxel-in-pediatric-patients-with-refractory-solid-tumors-including-tumors-of-the-central-nervous-system
#4
Peter E Manley, Tanya Trippett, Amy A Smith, Margaret E Macy, Sarah E S Leary, Jessica Boklan, Kenneth J Cohen, Stewart Goldman, Lindsay B Kilburn, Girish Dhall, Jeanne Devin, Cynthia E Herzog, Sonia Partap, Floris Fauchet, Emmy Badreddine, John P Bernard, Susan N Chi
BACKGROUND: This phase 1/2 study (NCT01751308) evaluated cabazitaxel in pediatric patients. Phase 1 determined the maximum tolerated dose (MTD) in patients with recurrent/refractory solid tumors, including central nervous system (CNS) tumors. Phase 2 evaluated activity in pediatric recurrent high-grade glioma (HGG) or diffuse intrinsic pontine glioma (DIPG). PROCEDURE: In phase 1, a 3 + 3 dose-escalation study design was followed. Cabazitaxel was administered at a starting dose of 20 mg/m2 ...
May 11, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29749077/cabazitaxel-regimens-inhibit-the-growth-of-prostate-cancer-cells-and-enhances-the-anti-tumor-properties-of-pedf-with-various-efficacy-and-toxicity
#5
Courtney Jarvis, Thomas Nelius, Dalia Martinez-Marin, Souad R Sennoune, Stéphanie Filleur
BACKGROUND: Taxanes chemotherapies represent the major therapeutic alternative for symptomatic mCRPC. While docetaxel is the most commonly prescribed Taxane for mCRPC; cabazitaxel has been approved for patients unresponsive to docetaxel. Still mCRPC remains incurable and patients often experience severe side effects. Recently, the FIRSTANA trial first demonstrated the absence of superiority in overall survival between cabazitaxel and docetaxel in mCRPC patients. Inversely, different toxicity were reported suggesting that cabazitaxel may provide a first line treatment option for some patients urging for a deeper characterization of cabazitaxel mechanisms of action as well as a re-evaluation of cabazitaxel conventional dose and schedule...
May 10, 2018: Prostate
https://www.readbyqxmd.com/read/29734804/a-novel-nanoparticle-formulation-derived-from-carboxymethyl-cellulose-polyethylene-glycol-and-cabazitaxel-for-chemotherapy-delivery-to-the-brain
#6
Joseph Bteich, Mark J Ernsting, Mohammed Z Mohammed, Taira Kiyota, Trevor McKee, Mohit Trikha, Henry Lowman, Kenneth K Sokoll
Nanoparticles provide a unique opportunity to explore the benefits of selective distribution and release of cancer therapeutics at sites of disease through varying particle sizes and compositions that exploit the enhanced permeability of tumor-associated blood vessels. Though delivery of larger-as opposed to smaller and/or actively transported-molecules to the brain is prime face a challenging endeavor, we wondered whether nanoparticles could improve the therapeutic index of existing drugs for use in treating brain tumors via these vascular effects...
May 7, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29731227/refining-the-use-of-cabazitaxel-in-metastatic-castrate-resistant-prostate-cancer
#7
Stéphane Culine
No abstract text is available yet for this article.
May 3, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29716525/prognostic-value-of-an-automated-bone-scan-index-for-men-with-metastatic-castration-resistant-prostate-cancer-treated-with-cabazitaxel
#8
Koichi Uemura, Yasuhide Miyoshi, Takashi Kawahara, Jikuya Ryosuke, Daisuke Yamashita, Shuko Yoneyama, Yumiko Yokomizo, Kazuki Kobayashi, Takeshi Kishida, Masahiro Yao, Hiroji Uemura
BACKGROUND: A computer-assisted diagnostic system for analyzing bone scans (BONENAVI) calculates the automated bone scan index (aBSI). Here we evaluated the aBSI as a prognostic imaging biomarker for men with metastatic castration-resistant prostate cancer (mCRPC) treated with cabazitaxel. METHODS: We retrospectively analyzed 48 patients who received cabazitaxel for mCRPC and evaluated the ability of the aBSI to predict overall survival (OS). The Cox proportional hazards model was used to investigate the associations between baseline aBSI at cabazitaxel treatment and OS with the clinical variables as follows: age, number of cycles of docetaxel, serum prostate-specific antigen, hemoglobin (Hb), lactate dehydrogenase (LDH), and alkaline phosphatase...
May 2, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29688882/withdrawn-disparity-in-public-funding-of-therapies-for-metastatic-castrate-resistant-prostate-cancer-across-canadian-provinces
#9
Dixon T S Woon, Thenappan Chandrasekar, Lorne Aaron, Naveen S Basappa, Kim N Chi, Henry J Conter, Brita Danielson, Sebastien J Hotte, Shawn Malone, Fred Saad, Bobby Shayegan, Laura Park-Wyllie, Robert J Hamilton
Ahead of print article withdrawn by publisher.
April 12, 2018: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29685343/weekly-versus-3-weekly-cabazitaxel-for-the-treatment-of-castration-resistant-prostate-cancer-a-randomised-phase-ii-trial-concab
#10
Jeffrey Yachnin, Bjørnar Gilje, Kristian Thon, Hemming Johansson, Yvonne Brandberg, Theocharis Panaretakis, Anders Ullén
AIM: Patients treated with cabazitaxel for metastatic castration-resistant prostate cancer (mCRPC) may experience dose delays and reductions or terminate treatment because of toxicity. A lower and more frequent dose of cabazitaxel could improve dose intensity. PATIENTS AND METHODS: This prospective, multi-center, phase II study randomly assigned 101 patients to Arm A, cabazitaxel Q3W, 25 mg/m2 or Arm B, Q1W, 10 mg/m2 5 of 6 weeks. The primary end-point was dose intensity, and we hypothesised that the experimental arm (Arm B) would result in a 20% absolute increase in the relative cumulative dose by week 18...
April 20, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29678476/cabazitaxel-plus-lapatinib-as-therapy-for-her2-metastatic-breast-cancer-with-intracranial-metastases-results-of-a-dose-finding-study
#11
Denise A Yardley, Lowell L Hart, Patrick J Ward, Gail L Wright, Mythili Shastry, Lindsey Finney, Laura M DeBusk, John D Hainsworth
BACKGROUND: Lapatinib is an oral small molecule tyrosine kinase epidermal growth factor receptor-1/HER2 inhibitor that crosses the blood-brain barrier and is active against central nervous system (CNS) metastases. Cabazitaxel is a taxoid that is effective against taxane-resistant metastatic breast cancer (MBC) and has distinguished itself by its ability to cross the blood-brain barrier. The present phase II study (ClinicalTrials.gov identifier, NCT01934894) evaluated the combination of these agents to treat HER2+ MBC patients with CNS metastases...
March 8, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29675746/cabazitaxel-is-more-active-than-first-generation-taxanes-in-abcb1-cell-lines-due-to-its-reduced-affinity-for-p-glycoprotein
#12
George E Duran, Volker Derdau, Dietmar Weitz, Nicolas Philippe, Jörg Blankenstein, Jens Atzrodt, Dorothée Sémiond, Diego A Gianolio, Sandrine Macé, Branimir I Sikic
PURPOSE: The primary aim of this study was to determine cabazitaxel's affinity for the ABCB1/P-glycoprotein (P-gp) transporter compared to first-generation taxanes. METHODS: We determined the kinetics of drug accumulation and retention using [14 C]-labeled taxanes in multidrug-resistant (MDR) cells. In addition, membrane-enriched fractions isolated from doxorubicin-selected MES-SA/Dx5 cells were used to determine sodium orthovanadate-sensitive ATPase stimulation after exposure to taxanes...
April 19, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29673712/update-on-systemic-prostate-cancer-therapies-management-of-metastatic-castration-resistant-prostate-cancer-in-the-era-of-precision-oncology
#13
REVIEW
Philipp Nuhn, Johann S De Bono, Karim Fizazi, Stephen J Freedland, Maurizio Grilli, Philip W Kantoff, Guru Sonpavde, Cora N Sternberg, Srinivasan Yegnasubramanian, Emmanuel S Antonarakis
CONTEXT: Introduction of novel agents for the management of advanced prostate cancer provides a range of treatment options with notable benefits for men with metastatic castration-resistant prostate cancer (mCRPC). At the same time, understanding of optimal patient selection, effective sequential use, and development of resistance patterns remains incomplete. OBJECTIVE: To review current systemic therapies and recent advances in drug development for mCRPC and strategies to aid in patient selection and optimal sequencing...
April 16, 2018: European Urology
https://www.readbyqxmd.com/read/29662635/establishment-and-characterization-of-two-cabazitaxel-resistant-prostate-cancer-cell-lines
#14
Kazuaki Machioka, Kouji Izumi, Yoshifumi Kadono, Hiroaki Iwamoto, Renato Naito, Tomoyuki Makino, Suguru Kadomoto, Ariunbold Natsagdorj, Evan T Keller, Jian Zhang, Atsushi Mizokami
Once castration-resistant prostate cancer (CRPC) become resistant for cabazitaxel treatment, the patients are obliged to best supportive care. Therefore, the elucidation of the mechanism of the cabazitaxel-resistance and the conquest are important themes to improve the prognosis of the patients. Then we tried to establish cabazitaxel-resistant CRPC cell lines and characterized them. We established two cabazitaxel-resistant cell lines, PC-3-TxR/CxR and DU145-TxR/CxR from PC-3-TxR and DU145-TxR cell lines previously we established...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29642359/re-cabazitaxel-versus-docetaxel-as-first-line-therapy-for-patients-with-metastatic-castration-resistant-prostate-cancer-a-randomized-phase-iii-trial-firstana
#15
https://www.readbyqxmd.com/read/29629866/prognostic-and-predictive-clinical-factors-in-patients-with-metastatic-castration-resistant-prostate-cancer-treated-with-cabazitaxel
#16
Daniel W Yokom, John Stewart, Nimira S Alimohamed, Eric Winquist, Scott Berry, Stacey Hubay, Jean-Baptiste Lattouf, Helene Leonard, Carla Girolametto, Fred Saad, Srikala S Sridhar
INTRODUCTION: Cabazitaxel is one of several treatment options available for patients with metastatic castration-resistant prostate cancer who have progressed on docetaxel. Little is known about clinical factors that influence prognosis or treatment response for patients receiving cabazitaxel. Identifying prognostic and predictive factors could contribute to the optimal selection of patients for treatment after docetaxel. METHODS: A retrospective review of patients enrolled on the cabazitaxel Canadian Early Access Program (C-EAP) was performed...
April 6, 2018: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29623850/treatment-of-metastatic-castration-resistant-docetaxel-resistant-prostate-cancer-a-systematic-review-of-literature-with-a-network-meta-analysis-of-randomized-clinical-trials
#17
Davide Tassinari, Chiara Cherubini, Britt Roudnas, Emiliano Tamburini, Fabrizio Drudi, Emanuela Bianchi, Manuela Fantini, Francesco Montanari, Sergio Sartori
INTRODUCTION: To compare the efficacy of abiraterone acetate, enzalutamide, cabazitaxel and Radium-223 in the treatment of castration-resistant, docetaxel-resistant metastatic prostate cancer. METHODS: An indirect comparison of overall survival (OS) and time to PSA progression among abiraterone acetate, enzalutamide, cabazitaxel and Radium-223 was performed with a network meta-analysis. OS in the entire population of patients was the primary end point. OS in ECOG 0-1/2, BPI-SF≤4/>4, pretreated with 1 or 2 courses of chemotherapy, age≤65/>65 patients, patients with only bone metastases or bone and visceral metastases, and time to PSA progression were the secondary end points...
April 4, 2018: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/29575112/the-what-when-and-why-of-human-prostate-cancer-xenografts
#18
REVIEW
W Nathaniel Brennen, John T Isaacs
BACKGROUND: Presently, ∼85 serially transplantable human prostate cancer xenografts spanning the phenotypic, epigenetic, and genetic heterogeneity seen clinically are available in a variety of laboratories throughout the world. If distributed to the prostate cancer research community, these can provide an experimental platform for resolving the specificity versus generalizability of basic cancer biology principles (eg, credentialing of therapeutic molecular targets) and for validating translational approaches for prevention, diagnosis, and therapy...
March 24, 2018: Prostate
https://www.readbyqxmd.com/read/29556327/efficacy-and-safety-of-different-interventions-in-castration-resistant-prostate-cancer-progressing-after-docetaxel-based-chemotherapy-bayesian-network-analysis-of-randomized-controlled-trials
#19
Yue Zhao, Hao Huang, Changhao Chen, Hao Liu, Hongwei Liu, Feng Su, Junming Bi, Thomas B Lam, Jiaping Li, Tianxin Lin, Jian Huang
Background : Most patients receiving docetaxel-based chemotherapy for castration resistant prostate cancer (CRPC) will eventually progress, and the optimal interventions for these patients are controversial. The objective of our study is to evaluate the clinical efficacy and safety of pharmacological interventions for CRPC patients progressing after docetaxel-based chemotherapy. Methods : A systematic review and Bayesian network meta-analysis of the literature was carried out according to standard methods. Major electronic databases including PubMed, Web of Science and Embase were searched until Jan 2017...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29550200/results-of-the-flac-european-database-of-metastatic-castration-resistant-prostate-cancer-patients-treated-with-docetaxel-cabazitaxel-and-androgen-receptor-targeted-agents
#20
Antoine Angelergues, Eleni Efstathiou, Revekka Gyftaki, Piotr Jan Wysocki, Nuria Lainez, Iria Gonzalez, Daniel E Castellano, Mustafa Ozguroglu, Iciar Garcia Carbonero, Aude Flechon, Pablo Borrega, Aline Guillot, Begona Campos Balea, Sylvestre Le Moulec, Emilio Esteban, Javier Munarriz, Gustavo Rubio, Alison J Birtle, Nicolas Delanoy, Joaquim Bellmunt, Stéphane Oudard
BACKGROUND: Several agents have demonstrated an overall survival (OS) benefit in patients with metastatic castration-resistant prostate cancer (mCRPC); however, the optimal sequencing of these therapies is unknown as a result of a lack of prospective randomized controlled trials. This retrospective study aimed to identify clinical factors influencing outcomes and to determine optimal treatment sequencing in patients with mCRPC treated with cabazitaxel (CABA) and/or androgen receptor-targeted agents (ART) after androgen-deprivation therapy (ADT) and docetaxel (DOC)...
February 23, 2018: Clinical Genitourinary Cancer
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