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Mato AR, Hill BT, Lamanna N, Barr PM, Ujjani CS, Brander DM, Howlett C, Skarbnik AP, Cheson BD, Zent CS, Pu JJ, Kiselev P, Foon K, Lenhart J, Henick Bachow S, Winter AM, Cruz AL, Claxton DF, Goy A, Daniel C, Isaac K, Kennard KH, Timlin C, Fanning M, Gashonia L, Yacur M, Svoboda J, Schuster SJ, Nabhan C. Optimal sequencing of ibrutinib, idelalisib, and venetoclax in chronic lymphocytic leukemia: results from a multicenter study of 683 patients. Ann Oncol 2018; 28:1050-1056. [PMID: 28453705 DOI: 10.1093/annonc/mdx031] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background Ibrutinib, idelalisib, and venetoclax are approved for treating CLL patients in the United States. However, there is no guidance as to their optimal sequence. Patients and methods We conducted a multicenter, retrospective analysis of CLL patients treated with kinase inhibitors (KIs) or venetoclax. We examined demographics, discontinuation reasons, overall response rates (ORR), survival, and post-KI salvage strategies. Primary endpoint was progression-free survival (PFS). Results A total of 683 patients were identified. Baseline characteristics were similar in the ibrutinib and idelalisib groups. ORR to ibrutinib and idelalisib as first KI was 69% and 81%, respectively. With a median follow-up of 17 months (range 1-60), median PFS and OS for the entire cohort were 35 months and not reached. Patients treated with ibrutinib (versus idelalisib) as first KI had a significantly better PFS in all settings; front-line [hazard ratios (HR) 2.8, CI 1.3-6.3, P = 0.01], relapsed-refractory (HR 2.8, CI 1.9-4.1, P < 0.001), del17p (HR 2.0, CI 1.2-3.4, P = 0.008), and complex karyotype (HR 2.5, CI 1.2-5.2, P = 0.02). At the time of initial KI failure, use of an alternate KI or venetoclax had a superior PFS when compared with chemoimmunotherapy. Furthermore, patients who discontinued ibrutinib due to progression or toxicity had marginally improved outcomes if they received venetoclax (ORR 79%) versus idelalisib (ORR 46%) (PFS HR .6, CI.3-1.0, P = 0.06). Conclusions In the largest real-world experience of novel agents in CLL, ibrutinib appears superior to idelalisib as first KI. Furthermore, in the setting of KI failure, alternate KI or venetoclax therapy appear superior to chemoimmunotherapy combinations. The use of venetoclax upon ibrutinib failure might be superior to idelalisib. These data support the need for trials testing sequencing strategies to optimize treatment algorithms.
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Affiliation(s)
- A R Mato
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - B T Hill
- Taussig Cancer Institute, Cleveland Clinic, Cleveland, USA
| | - N Lamanna
- Division of Hematology and Oncology, New York Presbyterian/Columbia University Medical Center, New York, USA
| | - P M Barr
- Wilmot Cancer Institute, University of Rochester, Rochester, USA
| | - C S Ujjani
- Lombardi Comprehensive Cancer Center, Georgetown University Hospital, Washington, USA
| | | | - C Howlett
- Department of Pharmacy and Clinical Services, John Theurer Cancer Center at Hackensack University Medical Center, Hackensack, USA.,Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, USA
| | - A P Skarbnik
- John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, USA
| | - B D Cheson
- Lombardi Comprehensive Cancer Center, Georgetown University Hospital, Washington, USA
| | - C S Zent
- Wilmot Cancer Institute, University of Rochester, Rochester, USA
| | - J J Pu
- Penn State Hershey Cancer Institute, Penn State University College of Medicine, Hershey, USA
| | | | - K Foon
- Celgene Corporation, Summit, USA
| | | | - S Henick Bachow
- Division of Hematology and Oncology, New York Presbyterian/Columbia University Medical Center, New York, USA
| | - A M Winter
- Taussig Cancer Institute, Cleveland Clinic, Cleveland, USA
| | - A-L Cruz
- Medstar Washington Hospital Center, Washington, USA
| | - D F Claxton
- Penn State Hershey Cancer Institute, Penn State University College of Medicine, Hershey, USA
| | - A Goy
- John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, USA
| | - C Daniel
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - K Isaac
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - K H Kennard
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - C Timlin
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - M Fanning
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - L Gashonia
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - M Yacur
- Penn State Hershey Cancer Institute, Penn State University College of Medicine, Hershey, USA
| | - J Svoboda
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - S J Schuster
- Center for CLL, Abramson Cancer Center, University of Pennsylvania, Philadelphia, USA
| | - C Nabhan
- Cardinal Health Specialty Solutions, Waukegan, USA
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Lu Y, Qi YX, Zhang H, Zhang HQ, Pu JJ, Xie YX. Separation and identification of Musa acuminate Colla (banana) leaf proteins by two-dimensional gel electrophoresis and mass spectrometry. Genet Mol Res 2013; 12:6871-81. [PMID: 24391035 DOI: 10.4238/2013.december.19.6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To establish a proteomic reference map of Musa acuminate Colla (banana) leaf, we separated and identified leaf proteins using two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and mass spectrometry (MS). Tryptic digests of 44 spots were subjected to peptide mass fingerprinting (PMF) by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) MS. Three spots that were not identified by MALDI-TOF MS analysis were identified by searching against the NCBInr, SwissProt, and expressed sequence tag (EST) databases. We identified 41 unique proteins. The majority of the identified leaf proteins were found to be involved in energy metabolism. The results indicate that 2D-PAGE is a sensitive and powerful technique for the separation and identification of Musa leaf proteins. A summary of the identified proteins and their putative functions is discussed.
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Affiliation(s)
- Y Lu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan, China
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Lu Y, Xu WH, Xie YX, Zhang X, Pu JJ, Qi YX, Li HP. Isolation and characterization of nucleotide-binding site and C-terminal leucine-rich repeat-resistance gene candidates in bananas. Genet Mol Res 2011; 10:3098-108. [PMID: 22194165 DOI: 10.4238/2011.december.15.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Commercial banana varieties are highly susceptible to fungal pathogens, as well as bacterial pathogens, nematodes, viruses, and insect pests. The largest known family of plant resistance genes encodes proteins with nucleotide-binding site (NBS) and C-terminal leucine-rich repeat (LRR) domains. Conserved motifs in such genes in diverse plant species offer a means for the isolation of candidate genes in banana that may be involved in plant defense. Six degenerate PCR primers were designed to target NBS and additional domains were tested on commercial banana species Musa acuminata subsp malaccensis and the Musa AAB Group propagated in vitro and plants maintained in a greenhouse. Total DNA was isolated by a modified CTAB extraction technique. Four resistance gene analogs were amplified and deposited in GenBank and assigned numbers HQ199833-HQ199836. The predicted amino acid sequences compared to the amino acid sequences of known resistance genes (MRGL1, MRGL2, MRGL3, and MRGL4) revealed significant sequence similarity. The presence of consensus domains, namely kinase-1a, kinase-2 and hydrophobic domain, provided evidence that the cloned sequences belong to the typical non-Toll/interleukin-1 receptor-like domain NBS-LRR gene family.
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Affiliation(s)
- Y Lu
- College of Natural Resources and Environment, South China Agriculture University, Wushan, China
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Pu JJ, Li C, Rodriguez M, Banerjee D. Cloning and structural characterization of ECTACC, a new member of the transforming acidic coiled coil (TACC) gene family: cDNA sequence and expression analysis in human microvascular endothelial cells. Cytokine 2001; 13:129-37. [PMID: 11161455 DOI: 10.1006/cyto.2000.0812] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Erythropoietin (Epo) transduces mitogenic and chemoattractant signals to human endothelial cells. Identifications of Epo-responsive genes are important for understanding the molecular nature of Epo signaling in endothelial cells. The effects of Epo on differential expression of various genes were examined in human microvascular endothelial cells (HMVEC) by differential display reverse transcriptase polymerase chain reaction (RT-PCR). In the current study we obtained from Epo-treated HMVEC a cDNA fragment with characteristics of the 3' end of mRNA. Using the cDNA fragment, we then selectively isolated a full-length clone by screening an unamplified endothelial cell cDNA library followed by 5' rapid amplification of cDNA ends by polymerase chain reaction (RACE-PCR). The nucleotide sequence of the longest cDNA revealed an open reading frame of 3311 nucleotides that encodes a protein consisting of approximately 906 amino acids with a predicted MW of approximately 100 kDa. The nucleotide sequence of the cDNA is nearly identical to that of transforming acidic coiled coil-containing (TACC2) and anti-zuai-1 (AZU-1) cDNA clones except at the 5'- and 3'-ends. Northern blot analysis showed an increase in endothelial-TACC-related mRNA levels in Epo-treated cells in comparison to that of the control cells. Endothelial-TACC-related mRNA was highly expressed in heart and skeletal muscle tissue. Placenta and brain tissue exhibited low levels of expression of endothelial-TACC-related gene. Southern blot analysis of genomic DNA from somatic cell hybrids showed that endothelial-TACC-related cDNA maps to chromosome 10. Immunofluorescence microscopy and the occurrence of several putative phosphorylation and SH3 binding sites on the deduced protein suggest that endothelial-TACC-related protein may be involved in Epo signaling cascades in endothelial cells.
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MESH Headings
- Amino Acid Sequence
- Animals
- Base Sequence
- Carrier Proteins
- Cells, Cultured
- Chromosome Mapping
- Chromosomes, Human, Pair 10/genetics
- Cloning, Molecular
- Cricetinae
- DNA, Complementary/biosynthesis
- DNA, Complementary/isolation & purification
- Endothelium, Vascular/chemistry
- Endothelium, Vascular/cytology
- Endothelium, Vascular/metabolism
- Fetal Proteins
- Fluorescent Antibody Technique, Indirect
- Gene Amplification
- Gene Expression Profiling
- Gene Library
- Humans
- Mice
- Microcirculation/chemistry
- Microcirculation/cytology
- Microcirculation/metabolism
- Microtubule-Associated Proteins/chemistry
- Microtubule-Associated Proteins/genetics
- Microtubule-Associated Proteins/isolation & purification
- Microtubule-Associated Proteins/metabolism
- Molecular Sequence Data
- Multigene Family
- Nuclear Proteins
- RNA, Messenger/biosynthesis
- Sequence Analysis, DNA
- Tumor Suppressor Proteins
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Affiliation(s)
- J J Pu
- Department of Membrane Biochemistry II, The Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY 10021, USA
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