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Bhattacharya E, Hazra A, Dutta M, Bose R, Dutta A, Dandapat M, Guha T, Mandal Biswas S. Novel report of Acinetobacter johnsonii as an indole-producing seed endophyte in Tamarindus indica L. Arch Microbiol 2024; 206:144. [PMID: 38460008 DOI: 10.1007/s00203-024-03865-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 03/11/2024]
Abstract
Plant-microbe associations have been regarded as an exciting topic of research due to their potential as environment friendly alternatives for stimulating crop growth and development. Seeds of Tamarindus indica L. have been chosen for the present study as seed endophytes prefer larger or nutritive cotyledon and hard seed coats for their colonization. The main objectives of our study were to isolate and identify the seed endophytes, their bioefficacy, and responsible chemical compounds. In a dose-dependent experiment, tamarind seed exudates (TSE) showed plant growth-promoting properties on Oryza sativa (53-81%), Daucus carota (10-31%), and Raphanus sativa (21-42%). Identification of the bacterial load in TSE through 16S rRNA sequencing revealed the existence of two bacterial species, Acinetobacter johnsonii and Niallia nealsonii. This is the first report of these two bacteria as seed endophytes of Tamarindus indica L. HRLC-MS analysis of TSE confirmed the presence of indole derivatives, primarily indole-3-lactic acid (ILA). The quantitative phytochemical estimation of bacterial culture filtrates revealed that indole-like substances were present in the extracts only in A. johnsonii at a concentration of 0.005 mg/ml of indole acetic acid equivalent. Experimental results suggested that the stimulatory activity of TSE was caused by the presence of A. johnsonii, a potential plant growth-promoting bacteria that produced indole-like compounds. This study suggests tamarind seed exudates with its endophytic microbiota as a potent plant growth-promoting agent that may find use as a cheap and sustainable source of metabolites useful in the agro-industries.
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Affiliation(s)
- Ekta Bhattacharya
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India.
| | - Anjan Hazra
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Madhurima Dutta
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Rahul Bose
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Anisha Dutta
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Moumita Dandapat
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Titir Guha
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Suparna Mandal Biswas
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India.
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Bose R, Paul A, Dutta R, Hazra A, Pramanik A, Mandal Biswas S. Synthesis, antimicrobial, anticancer evaluation and molecular docking with Bax and MDM2 of dibromosterculic acid. Nat Prod Res 2023:1-8. [PMID: 38148119 DOI: 10.1080/14786419.2023.2294107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 12/04/2023] [Indexed: 12/28/2023]
Abstract
Dibromosterculic acid [8-(1,2-dibromo-2-octylcyclopropyl)-octanoic acid], a new synthetic derivative was prepared by bromination of sterculic acid. This synthetic derivative showed strong fungicidal activity against two pathogenic fungal species namely Penicillium chrysogenum and Aspergillus niger with minimum inhibitory concentration (MIC) value of 0.007 mg/ml and good bactericidal activity against Bacillus subtilis and Xanthomonas sp. with MIC value of 0.015 mg/ml. Cytotoxic activity on both normal (MCF-10A) and cancerous (MDA-MB-468) cell lines revealed that the survivability percentage of normal cells was unaffected, whereas cancerous cells were decreased greatly by dibromosterculic acid with 50% survivability at 9 µg/ml concentration. Molecular-docking using AutoDock 4.2 with Bax exhibited strong pi-sigma interaction with PHE-93, pi-alkyl and alkyl interaction with TRP-139, ARG-89 and PHE-92 whereas MDM2 revealed strong hydrogen bond interaction with GLN-59 and pi-alkyl interaction with PHE-55. All experimental parameters suggested that this synthetic derivative would be valuable for target-specific drug development with nominal side effects.
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Affiliation(s)
- Rahul Bose
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, India
| | - Ayan Paul
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, India
| | - Rajashree Dutta
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, India
| | - Anjan Hazra
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, India
| | - Arindam Pramanik
- School of Medicine, University of Leeds, United Kingdom
- Amity Institute of Biotechnology, Amity University, Uttar Pradesh, India
| | - Suparna Mandal Biswas
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, India
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Elias M, Guan X, Hudson D, Bose R, Kwak J, Petrounia I, Touah K, Mansour S, Yue P, Errasti G, Delacroix T, Ghosh A, Chakrabarti R. Evolution of Organic Solvent-Resistant DNA Polymerases. ACS Synth Biol 2023; 12:3170-3188. [PMID: 37611245 DOI: 10.1021/acssynbio.2c00515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
The introduction of thermostable polymerases revolutionized the polymerase chain reaction (PCR) and biotechnology. However, many GC-rich genes cannot be PCR-amplified with high efficiency in water, irrespective of temperature. Although polar organic cosolvents can enhance nucleic acid polymerization and amplification by destabilizing duplex DNA and secondary structures, nature has not selected for the evolution of solvent-tolerant polymerase enzymes. Here, we used ultrahigh-throughput droplet-based selection and deep sequencing along with computational free-energy and binding affinity calculations to evolve Taq polymerase to generate enzymes that are both stable and highly active in the presence of organic cosolvents, resulting in up to 10% solvent resistance and over 100-fold increase in stability at 97.5 °C in the presence of 1,4-butanediol, as well as tolerance to up to 10 times higher concentrations of the potent cosolvents sulfolane and 2-pyrrolidone. Using these polymerases, we successfully amplified a broad spectrum of GC-rich templates containing regions with over 90% GC content, including templates recalcitrant to amplification with existing polymerases, even in the presence of cosolvents. We also demonstrated dramatically reduced GC bias in the amplification of genes with widely varying GC content in quantitative polymerase chain reaction (qPCR). By expanding the scope of solvent systems compatible with nucleic acid polymerization, these organic solvent-resistant polymerases enable a dramatic reduction of sequence bias not achievable through thermal resistance alone, with significant implications for a wide range of applications including sequencing and synthetic biology in mixed aqueous-organic media.
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Affiliation(s)
- Mohammed Elias
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Xiangying Guan
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Devin Hudson
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Rahul Bose
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Joon Kwak
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Ioanna Petrounia
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Kenza Touah
- Center for Protein Engineering & Drug Discovery, PMC Isochem SAS, 32 Rue Lavoisier, Vert-Le-Petit 91710, France
| | - Sourour Mansour
- Center for Protein Engineering & Drug Discovery, PMC Isochem SAS, 32 Rue Lavoisier, Vert-Le-Petit 91710, France
| | - Peng Yue
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
| | - Gauthier Errasti
- Center for Protein Engineering & Drug Discovery, PMC Isochem SAS, 32 Rue Lavoisier, Vert-Le-Petit 91710, France
| | - Thomas Delacroix
- Center for Protein Engineering & Drug Discovery, PMC Isochem SAS, 32 Rue Lavoisier, Vert-Le-Petit 91710, France
| | - Anisha Ghosh
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
- McGill University, 845 Rue Sherbrooke Ouest, Montreal, QC H3A 0G4, Canada
| | - Raj Chakrabarti
- Chakrabarti Advanced Technology, LLC, PMC Group Building, 1288 Route 73, Suite 110, Mount Laurel, New Jersey 08054, United States
- Center for Protein Engineering & Drug Discovery, PMC Isochem SAS, 32 Rue Lavoisier, Vert-Le-Petit 91710, France
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Jhaveri K, Eli LD, Wildiers H, Hurvitz SA, Guerrero-Zotano A, Unni N, Brufsky A, Park H, Waisman J, Yang ES, Spanggaard I, Reid S, Burkard ME, Vinayak S, Prat A, Arnedos M, Bidard FC, Loi S, Crown J, Bhave M, Piha-Paul SA, Suga JM, Chia S, Saura C, Garcia-Saenz JÁ, Gambardella V, de Miguel MJ, Gal-Yam EN, Rapael A, Stemmer SM, Ma C, Hanker AB, Ye D, Goldman JW, Bose R, Peterson L, Bell JSK, Frazier A, DiPrimeo D, Wong A, Arteaga CL, Solit DB. Neratinib + fulvestrant + trastuzumab for HR-positive, HER2-negative, HER2-mutant metastatic breast cancer: outcomes and biomarker analysis from the SUMMIT trial. Ann Oncol 2023; 34:885-898. [PMID: 37597578 DOI: 10.1016/j.annonc.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/21/2023] Open
Abstract
BACKGROUND HER2 mutations are targetable alterations in patients with hormone receptor-positive (HR+) metastatic breast cancer (MBC). In the SUMMIT basket study, patients with HER2-mutant MBC received neratinib monotherapy, neratinib + fulvestrant, or neratinib + fulvestrant + trastuzumab (N + F + T). We report results from 71 patients with HR+, HER2-mutant MBC, including 21 (seven in each arm) from a randomized substudy of fulvestrant versus fulvestrant + trastuzumab (F + T) versus N + F + T. PATIENTS AND METHODS Patients with HR+ HER2-negative MBC with activating HER2 mutation(s) and prior cyclin-dependent kinase 4/6 inhibitor (CDK4/6i) therapy received N + F + T (oral neratinib 240 mg/day with loperamide prophylaxis, intramuscular fulvestrant 500 mg on days 1, 15, and 29 of cycle 1 then q4w, intravenous trastuzumab 8 mg/kg then 6 mg/kg q3w) or F + T or fulvestrant alone. Those whose disease progressed on F + T or fulvestrant could cross-over to N + F + T. Efficacy endpoints included investigator-assessed objective response rate (ORR), clinical benefit rate (RECIST v1.1), duration of response, and progression-free survival (PFS). Plasma and/or formalin-fixed paraffin-embedded tissue samples were collected at baseline; plasma was collected during and at end of treatment. Extracted DNA was analyzed by next-generation sequencing. RESULTS ORR for 57 N + F + T-treated patients was 39% [95% confidence interval (CI) 26% to 52%); median PFS was 8.3 months (95% CI 6.0-15.1 months). No responses occurred in fulvestrant- or F + T-treated patients; responses in patients crossing over to N + F + T supported the requirement for neratinib in the triplet. Responses were observed in patients with ductal and lobular histology, 1 or ≥1 HER2 mutations, and co-occurring HER3 mutations. Longitudinal circulating tumor DNA sequencing revealed acquisition of additional HER2 alterations, and mutations in genes including PIK3CA, enabling further precision targeting and possible re-response. CONCLUSIONS The benefit of N + F + T for HR+ HER2-mutant MBC after progression on CDK4/6is is clinically meaningful and, based on this study, N + F + T has been included in the National Comprehensive Cancer Network treatment guidelines. SUMMIT has improved our understanding of the translational implications of targeting HER2 mutations with neratinib-based therapy.
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Affiliation(s)
- K Jhaveri
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York; Weill Cornell Medical College, New York.
| | - L D Eli
- Clinical Development, Puma Biotechnology, Los Angeles, USA
| | - H Wildiers
- University Hospitals Leuven, Leuven, Belgium
| | - S A Hurvitz
- David Geffen School of Medicine, UCLA, Los Angeles, Santa Monica, USA
| | - A Guerrero-Zotano
- Medical Oncology Department, Fundación Instituto Valenciano de Oncología, Valencia, Spain
| | - N Unni
- UT Southwestern Medical Center, Dallas
| | - A Brufsky
- Magee-Womens Hospital of UPMC, Pittsburgh
| | - H Park
- Washington University School of Medicine, St. Louis
| | - J Waisman
- City of Hope Comprehensive Cancer Center, Duarte
| | - E S Yang
- University of Alabama at Birmingham, Birmingham, USA
| | - I Spanggaard
- Department of Oncology, Rigshospitalet - Copenhagen University Hospital, Copenhagen, Denmark
| | - S Reid
- Division of Hematology/Oncology (Breast Oncology), The Vanderbilt-Ingram Cancer Center, Nashville
| | - M E Burkard
- Division of Hematology/Oncology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison
| | - S Vinayak
- Seattle Cancer Care Alliance, Seattle, USA
| | - A Prat
- Hospital Clínic de Barcelona, Barcelona, Spain
| | - M Arnedos
- Department of Medical Oncology, Gustave Roussy, Villejuif
| | - F-C Bidard
- Department of Medical Oncology, UVSQ/Paris-Saclay University, Institut Curie, Saint Cloud, France
| | - S Loi
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne; The Sir Peter MacCallum Department of Medical Oncology, The University of Melbourne, Parkville, Australia
| | - J Crown
- St. Vincent's University Hospital, Dublin, Ireland
| | - M Bhave
- Department of Hematology/Oncology, Emory University, Winship Cancer Institute, Atlanta
| | - S A Piha-Paul
- Department of Investigational Cancer Therapeutics, University of Texas MD Anderson Cancer Center, Houston
| | - J M Suga
- Kaiser Permanente, Department of Medical Oncology, Vallejo, USA
| | - S Chia
- Department of Medical Oncology, British Columbia Cancer Agency, Vancouver, Canada
| | - C Saura
- Medical Oncology Service, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona
| | - J Á Garcia-Saenz
- Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), CIBERONC, Madrid
| | - V Gambardella
- Hospital Clínico de Valencia, Instituto de Investigación Sanitaria INCLIVA, Valencia
| | - M J de Miguel
- START Madrid - Hospital Universitario Madrid Sanchinarro, Madrid, Spain
| | - E N Gal-Yam
- Institute of Breast Oncology, Sheba Medical Center, Ramat Gan
| | - A Rapael
- Sourasky Medical Center, Tel Aviv
| | - S M Stemmer
- Davidoff Cancer Center, Rabin Medical Center, Petah Tikva; Tel Aviv University, Tel Aviv, Israel
| | - C Ma
- Division of Medical Oncology, Department of Medicine and Siteman Cancer Center, Washington University, St. Louis
| | - A B Hanker
- UT Southwestern Simmons Comprehensive Cancer Center, Dallas
| | - D Ye
- UT Southwestern Simmons Comprehensive Cancer Center, Dallas
| | | | - R Bose
- Division of Medical Oncology, Department of Medicine and Siteman Cancer Center, Washington University, St. Louis
| | - L Peterson
- Division of Medical Oncology, Department of Medicine and Siteman Cancer Center, Washington University, St. Louis
| | | | - A Frazier
- Clinical Development, Puma Biotechnology, Los Angeles, USA
| | - D DiPrimeo
- Clinical Development, Puma Biotechnology, Los Angeles, USA
| | - A Wong
- Clinical Development, Puma Biotechnology, Los Angeles, USA
| | - C L Arteaga
- UT Southwestern Simmons Comprehensive Cancer Center, Dallas
| | - D B Solit
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York
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Dutta M, Hazra A, Bhattacharya E, Bose R, Mandal Biswas S. Characterization and metabolomic profiling of two pigment producing fungi from infected fruits of Indian Gooseberry. Arch Microbiol 2023; 205:141. [PMID: 36964798 DOI: 10.1007/s00203-023-03483-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/01/2023] [Accepted: 03/12/2023] [Indexed: 03/26/2023]
Abstract
Two pigment producing fungi, Talaromyces atroroseus and Penicillium choerospondiatis, were isolated and identified from infected fruits of Phyllanthus emblica L. based on amplification and sequencing of internal transcribed spacer region and beta-tubulin gene. This is the first occurrence report of these two fungi from fruits of P. emblica. Culture extract containing metabolites of T. atroroseus and P. choerospondiatis contained phenolics of 26.35 mg and 30.89 mg GAE/g dry extract respectively; whereas no significant amount of flavonoids and tannins were detected. P. choerospondiatis metabolites extract showed higher DPPH and ABTS activity with IC50 values of 21.94 mg/ml and 27.03 mg/ml respectively than T. atroroseus. LC-HRMS analysis of metabolites extract of T. atroroseus revealed presence of trimethyl-isopropyl-butanamide, perlolyrine, N-hexadecanoylpyrrolidine etc. whereas P. choerospondiatis displayed presence of tangeraxanthin, ugaxanthone, daphniphylline, etc. Therefore, fungal metabolites are rich natural sources of diversified compounds that can be utilized in dyeing industries, cosmetics and novel drug development.
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Affiliation(s)
- Madhurima Dutta
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India.
| | - Anjan Hazra
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Ekta Bhattacharya
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Rahul Bose
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India
| | - Suparna Mandal Biswas
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B.T. Road, Kolkata, 700108, India.
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Roychoudhury P, Bose R, Dąbek P, Witkowski A. Photonic Nano-/Microstructured Diatom Based Biosilica in Metal Modification and Removal-A Review. Materials (Basel) 2022; 15:ma15196597. [PMID: 36233939 PMCID: PMC9572592 DOI: 10.3390/ma15196597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/11/2022] [Accepted: 09/19/2022] [Indexed: 05/30/2023]
Abstract
The siliceous exoskeletal shells of diatoms, commonly known as frustules, have drawn attention because of their photoluminescence property and high volume to surface area. Photonic biosilica can also enhance the plasmonic sensitivity of nanoparticles. Because of this, researchers have studied the effectiveness of various metal particles after combining with biosilica. Additionally, naturally occurring diatom-based biosilica has excellent adsorption and absorption capabilities, which have already been exploited for wastewater treatment. Moreover, the nanoporous, ultra-hydrophilic frustules can easily accumulate more molecules on their surfaces. As a consequence, it becomes easier to conjugate noble metals with silica, making them more stable and effective. The main focus of this review is to agglomerate the utility of biocompatible diatom frustules, which is a no-cost natural resource of biosilica, in metal modification and removal.
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Affiliation(s)
- Piya Roychoudhury
- Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16a, 70-383 Szczecin, Poland
| | - Rahul Bose
- Department of Botany, University of Calcutta, Ballygunge Circular Road 35, Kolkata 700019, India
| | - Przemysław Dąbek
- Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16a, 70-383 Szczecin, Poland
| | - Andrzej Witkowski
- Institute of Marine and Environmental Sciences, University of Szczecin, Mickiewicza 16a, 70-383 Szczecin, Poland
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Deshmukh P, De Kouchkovsky I, Zhang L, Jindal T, Reyes K, Hernandez Romero E, Chan E, Desai A, Borno H, Kwon D, Wong A, Bose R, Aggarwal R, Porten S, Fong L, Small E, Chou J, Friedlander T, Koshkin V. 1751P Impact of squamous histology on clinical outcomes and molecular profiling in metastatic urothelial carcinoma (mUC) patients (pts) treated with newer therapies. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Jindal T, Han H, Deshmukh P, De Kouchkovsky I, Kwon D, Borno H, Koshkin V, Desai A, Bose R, Chou J, Friedlander T, Small E, Angelidakis A, Johnson M, Feng S, Patnaik A, Fong L, Alumkal J, Aggarwal R. 1404P A phase II study of ZEN-3694 (ZEN), enzalutamide (ENZ), and pembrolizumab (P) in metastatic castration resistant prostate cancer (mCRPC): Interim safety results. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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9
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Friedman C, Swanton C, Spigel D, Bose R, Burris H, Yu W, Wang Y, Malato J, Price R, Darbonne W, Szado T, Schulze K, Sweeney C, Hainsworth J, Meric-Bernstam F, Kurzrock R. 66O MyPathway: A multiple target, multiple basket study of targeted treatments in tissue-agnostic cohorts of patients (pts) with advanced solid tumors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Aggarwal R, Trihy L, Hernandez Romero E, Luch Sam S, Rastogi M, De Kouchkovsky I, Small E, Feng F, Kwon D, Friedlander T, Borno H, Bose R, Chou J, Koshkin V, Desai A, Feng S, Angelidakis A, Johnson M, Fong L, Hope T. 1379P A phase Ib study of a single priming dose of 177Lu-PSMA-617 coupled with pembrolizumab in metastatic castration resistant prostate cancer (mCRPC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1511] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Bose R, Sengupta M, Basu D, Jha S. The rolB-transgenic Nicotiana tabacum plants exhibit upregulated ARF7 and ARF19 gene expression. Plant Direct 2022; 6:e414. [PMID: 35774625 PMCID: PMC9219009 DOI: 10.1002/pld3.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 05/08/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Agrobacterium rhizogenes root oncogenic locus B (rolB) is known to induce hairy roots along with triggering several physiological and morphological changes when present as a transgene. However, it is still unknown how this gene triggers these changes within the plant system. In this study, the effect of rolB in-planta, when present as a transgene, was assessed on the gene expression levels of auxin response factors (ARFs)-transcription factors which are key players in auxin-mediated responses. The goal was to uncover Auxin/ARF-driven transcriptional networks potentially active and working selectively, if any, in rolB transgenic background, which might potentially be associated with hairy root development. Hence, the approach involved establishing rolB-transgenic Nicotiana tabacum plants, selecting ARFs (NtARFs) for context-relevance using bioinformatics followed by gene expression profiling. It was observed that out of the chosen NtARFs, NtARF7 and NtARF19 exhibited a consistent pattern of gene upregulation across organ types. In order to understand the significance of these selective gene upregulation, ontology-based transcriptional network maps of the differentially and nondifferentially expressed ARFs were constructed, guided by co-expression databases. The network maps suggested that NtARF7-NtARF19 might have major deterministic, underappreciated roles to play in root development in a rolB-transgenic background-as observed by higher number of "root-related" biological processes present as nodes compared to network maps for similarly constructed other non-differentially expressed ARFs. Based on the inferences drawn, it is hypothesized that rolB, when present as a transgene, might drive hairy root development by selective induction of NtARF7 and NtARF19, suggesting a functional link between the two, leading to the specialized and characteristic rolB-associated traits.
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Affiliation(s)
- Rahul Bose
- Department of GeneticsUniversity of CalcuttaKolkataWest BengalIndia
| | - Mainak Sengupta
- Department of GeneticsUniversity of CalcuttaKolkataWest BengalIndia
| | - Debabrata Basu
- Division of Plant BiologyBose InstituteKolkataWest BengalIndia
| | - Sumita Jha
- Department of BotanyUniversity of CalcuttaKolkataWest BengalIndia
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Lees B, Bose R, Donahue EE, Johnson SL, Naumann RW. COVID19 Pandemic Impact on Same-Day Discharge Rates after Minimally Invasive Surgery for Endometrial Cancer. J Minim Invasive Gynecol 2021. [PMCID: PMC8518356 DOI: 10.1016/j.jmig.2021.09.504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Study Objective To determine if the COVID19 pandemic increased the rate of same-day discharge (SDD) after minimally invasive surgery (MIS) for endometrial cancer. Design Retrospective cohort study of patients undergoing MIS hysterectomy for endometrial cancer for the six months before and after the COVID19 restrictions went into place on March 17, 2020. Setting Robotic or laparoscopic procedure in the low dorsal lithotomy position. Arms were tucked and padded at their sides. Patients or Participants 166 patients underwent a MIS procedure for the indication of endometrial cancer at a large, academic institution from September 1, 2019, through October 1, 2020. 80 patients prior to the implementation of the COVID19 restrictions and 86 patients after. Interventions COVID19 pandemic with visitor restrictions and hospital policy changes placed on March 17, 2020. Measurements and Main Results SDD rate was increased following the start of the COVID19 pandemic (40% vs 58%, p= 0.02). There were no differences between the two groups in regard to operative time (p= 0.07), estimated blood loss (EBL) (p= 0.21), uterine weight (p= 0.12), age (p= 0.06), BMI (p=0.42), or surgery start time (p= 0.15). In a multivariable logistic regression model, subjects in the post COVID19 group had a 3.08 (95% CI: 1.40, 6.74, p= 0.01) higher odds of SDD than those in the pre COVID19 group. There was no difference in 30-day readmission rates (7.5% vs 5.8%, p=0.66). Conclusion With no additional interventions from a surgical standpoint, the start of the COVID19 pandemic improved SDD rates. The reason for this is speculative but may be related to patient and physician desire to keep patients out of the hospital and may provide further evidence that subjective reasons lead to an increase in hospital length of stay.
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SATPATI GOURGOPAL, Bose R, Pal R. TAXONOMIC INVESTIGATION OF EUPLANKTONIC DIATOM COMMUNITIES AS INDICATOR OF COPPER IN THE BANK OF THE SUBARNAREKHA RIVER, GHATSHILA, JHARKHAND, INDIA. J microb biotech food sci 2021. [DOI: 10.15414/jmbfs.2827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The aim of this study was to demonstrate and evaluate the diatom communities in the copper infected areas readily associated with the Hindustan Copper Limited (HCL) at the bank of the Subarnarekha River. This study was based on three sampling sites commonly designated as high copper (>100 μg.L-1), medium copper (≤100 μg.L-1) and low copper (≤50 μg.L-1) contaminated area. Results indicated the detailed taxonomic description of 31 species that are dominant or less dominant over these contaminated area. Among the identified taxa, 10 were recorded as new to the Jharkhand state. Water analysis has suggested the presence of 17 species in the high copper contaminated area adjacent to HCL. Nine species was less dominant in the outlet of HCL that belonged to the medium contaminated and only 5 species were dominant over the low copper contaminated area. Physico-chemical parameters like pH, air and water temperature, salinity, conductivity, light extinction coefficient, turbidity, dissolved inorganic salts, dissolved oxygen and carbon-di-oxide, biological oxygen demand and total hardness were also estimated in the copper contaminated sites. Relatively all the species of Cymbella and Navicula were associated with high copper accumulation. Most interestingly, one harmful species Halamphora coffeiformis, which was recorded as most dominant species in high copper exposed area, has shown to be the best copper tolerant and copper indicator species.
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Dey I, Banerjee S, Bose R, Pal R. Spatiotemporal variations in the composition of algal mats in wastewater treatment ponds of tannery industry. Environ Monit Assess 2021; 193:359. [PMID: 34037860 DOI: 10.1007/s10661-021-09144-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Wastewater Treatment Pond (WTP) is an effective remediation technology for economically developing nations. Although it's excessive organic and nutrient loads with higher water logging time triggers mixed and unprofitable microalgal mats. This may serve as a seeding source for Cyanobacterial bloom in receiving waterbodies. Since, to maintain the growth of desirable algal species in WTPs, understanding towards environmental regulation and algal mat composition is important, especially for tropical countries, like India. In this study, biological treatment pond (BTP) and outlet pond (OP), of a tannery effluent treatment plant in eastern coast of India, were chosen for surveying the algal community composition concerning ecological parameters. Nearly, both the ponds were polluted, but the diversity was lower in BTP due to its elevated nutrient content (Ammonia 173 mg L-1) and higher persistent organic matters (COD 301.7 mg L-1) than OP. Using canonical correspondence analysis, seasonal variations showed higher species abundance during early summer compared to other seasons. A total of 37 taxa forming thick algal mats were recorded. The matrix of mats was mainly composed of Cyanobacterial members such as Phormidium, Leptolyngbya, Spirulina, and Pseudanabaena, followed by diatoms, especially Amphora and Nitzschia. Diatoms commonly occurred as embedded component in the entangled matrix of blue-green algal filaments. Hierarchical cluster analysis was employed to group all these taxa based on their seasonal appearance and abundance. This year-long intensive study revealing seasonal algal mat composition patterns in these WTPs will ultimately safeguard the livelihood and security of adjoining localities through proper site-specific pollution control.
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Affiliation(s)
- Iman Dey
- Phycology Laboratory, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Sreemanti Banerjee
- Phycology Laboratory, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Rahul Bose
- Phycology Laboratory, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Ruma Pal
- Phycology Laboratory, Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, West Bengal, India.
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Naumann R, Trufan S, Aneralla A, Bose R, Crane E, Tait D, Higgins R, Brown J. The (f)utility of therapy in ovarian cancer after the development of platinum resistance. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Barcenas CH, Hurvitz SA, Di Palma JA, Bose R, Chien AJ, Iannotti N, Marx G, Brufsky A, Litvak A, Ibrahim E, Alvarez RH, Ruiz-Borrego M, Chan N, Manalo Y, Kellum A, Trudeau M, Thirlwell M, Garcia Saenz J, Hunt D, Bryce R, McCulloch L, Rugo HS, Tripathy D, Chan A. Improved tolerability of neratinib in patients with HER2-positive early-stage breast cancer: the CONTROL trial. Ann Oncol 2020; 31:1223-1230. [PMID: 32464281 DOI: 10.1016/j.annonc.2020.05.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/27/2020] [Accepted: 05/07/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Neratinib is an irreversible pan-HER tyrosine kinase inhibitor approved for extended adjuvant treatment in early-stage HER2-positive breast cancer based on the phase III ExteNET study. In that trial, in which no antidiarrheal prophylaxis was mandated, grade 3 diarrhea was observed in 40% of patients and 17% discontinued due to diarrhea. The international, open-label, sequential-cohort, phase II CONTROL study is investigating several strategies to improve tolerability. PATIENTS AND METHODS Patients who completed trastuzumab-based adjuvant therapy received neratinib 240 mg/day for 1 year plus loperamide prophylaxis (days 1-28 or 1-56). Sequential cohorts evaluated additional budesonide or colestipol prophylaxis (days 1-28) and neratinib dose escalation (DE; ongoing). The primary end point was the incidence of grade ≥3 diarrhea. RESULTS Final data for loperamide (L; n = 137), budesonide + loperamide (BL; n = 64), colestipol + loperamide (CL; n = 136), and colestipol + as-needed loperamide (CL-PRN; n = 104) cohorts, and interim data for DE (n = 60; completed ≥six cycles or discontinued; median duration 11 months) are available. No grade 4 diarrhea was observed. Grade 3 diarrhea rates were lower than ExteNET in all cohorts and lowest in DE (L 31%, BL 28%, CL 21%, CL-PRN 32%, DE 15%). Median number of grade 3 diarrhea episodes was one; median duration per grade 3 episode was 1.0-2.0 days across cohorts. Most grade 3 diarrhea and diarrhea-related discontinuations occurred in month 1. Diarrhea-related discontinuations were lowest in DE (L 20%, BL 8%, CL 4%, CL-PRN 8%, DE 3%). Decreases in health-related quality of life did not cross the clinically important threshold. CONCLUSIONS Neratinib tolerability was improved with preemptive prophylaxis or DE, which reduced the rate, severity, and duration of neratinib-associated grade ≥3 diarrhea compared with ExteNET. Lower diarrhea-related treatment discontinuations in multiple cohorts indicate that proactive management can allow patients to stay on neratinib for the recommended time period. CLINICALTRIALS.GOV: NCT02400476.
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Affiliation(s)
- C H Barcenas
- The University of Texas MD Anderson Cancer Center, Houston, USA.
| | - S A Hurvitz
- University of California Los Angeles, Jonsson Comprehensive Cancer Center, Los Angeles, USA
| | - J A Di Palma
- University of South Alabama College of Medicine, Mobile, USA
| | - R Bose
- Washington University School of Medicine, St Louis, USA
| | - A J Chien
- University of California San Francisco Comprehensive Cancer Center, San Francisco, USA
| | - N Iannotti
- Hematology Oncology Associates of the Treasure Coast, Port St. Lucie, USA
| | - G Marx
- Adventist Health Care, Wahroonga, Australia
| | - A Brufsky
- Magee-Womens Hospital of UPMC, Pittsburgh, USA
| | - A Litvak
- Saint Barnabas Medical Center, Livingston, USA
| | - E Ibrahim
- Redlands Community Hospital, Redlands, USA
| | - R H Alvarez
- Southeastern Regional Medical Center, Inc., Newnan, USA
| | | | - N Chan
- Rutger Cancer Institute of New Jersey, New Brunswick, USA
| | - Y Manalo
- Coastal Bend Cancer Center, Corpus Christi, USA
| | - A Kellum
- North Mississippi Medical Center Hematology and Oncology Clinic, Tupelo, USA
| | - M Trudeau
- Sunnybrook Research Institute, Toronto, Canada
| | - M Thirlwell
- McGill University Health Centre, Montreal, Canada
| | | | - D Hunt
- Puma Biotechnology Inc., Los Angeles, USA
| | - R Bryce
- Puma Biotechnology Inc., Los Angeles, USA
| | | | - H S Rugo
- University of California San Francisco Comprehensive Cancer Center, San Francisco, USA
| | - D Tripathy
- The University of Texas MD Anderson Cancer Center, Houston, USA
| | - A Chan
- Breast Cancer Research Centre-WA & Curtin University, Perth, WA, Australia
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Bose R, Ioannidis K, Foschi F, Bakhsh A, Kelly RD, Deb S, Mannocci F, Niazi SA. Antimicrobial Effectiveness of Calcium Silicate Sealers against a Nutrient-Stressed Multispecies Biofilm. J Clin Med 2020; 9:jcm9092722. [PMID: 32846942 PMCID: PMC7563851 DOI: 10.3390/jcm9092722] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/16/2020] [Accepted: 08/21/2020] [Indexed: 12/21/2022] Open
Abstract
Purpose: This study compared the antimicrobial efficacy of calcium silicate sealers (BioRoot RCS and Total Fill BC) and conventional sealers (AH Plus and Tubli-seal) against planktonic bacteria and a nutrient-stressed multispecies biofilm. Methods: Antimicrobial properties of freshly mixed sealers were investigated using the direct contact test (DCT) and a nutrient-stressed multispecies biofilm comprised of five endodontic strains. Antimicrobial activity was determined using quantitative viable counts and confocal laser scanning microscopy (CLSM) analysis with live/dead staining. The pH of the sealers was analysed over a period of 28 days in Hanks Balanced Salt Solution (HBSS). Analysis of variance (ANOVA) with Tukey tests and the Kruskal–Wallis test were used for data analysis with a significance of 5%. Results: All endodontic sealers exhibited significant antimicrobial activity against planktonic bacteria (p < 0.05). BioRoot RCS caused a significant reduction in viable counts of the biofilms compared to AH Plus and the control (p < 0.05), while no significant difference could be observed compared to TotalFill BC and Tubli-seal (p > 0.05). CLSM analysis showed that BioRoot RCS and TotalFill BC exhibited significant biofilm inhibition compared to Tubli-seal, AH Plus and the control (p < 0.05). BioRoot RCS presented with the highest microbial killing, followed by TotalFill BC and Tubli-seal. Alkalizing activity was seen from the onset by BioRoot RCS, TotalFill BC and AH Plus. After 28 days, BioRoot RCS demonstrated the highest pH in HBSS (pH > 12). Conclusions: Calcium silicate sealers exhibited effective antimicrobial properties. This was demonstrated by superior biofilm inhibition capacity and microbial killing, with strong alkalizing activity compared to epoxy-based and zinc oxide-eugenol-based sealers.
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Affiliation(s)
- Rahul Bose
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
| | - Konstantinos Ioannidis
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
| | - Federico Foschi
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
- Department of Therapeutic Dentistry I. M., Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Abdulaziz Bakhsh
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
- Department of Restorative Dentistry, Faculty of Dentistry, Umm Al-Qura University, Makkah 24381, Saudi Arabia
| | - Robert D. Kelly
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
| | - Sanjukta Deb
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
| | - Francesco Mannocci
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
| | - Sadia Ambreen Niazi
- Centre for Host Microbiome Interactions, King’s College London Dental Institute, Floor 17, Tower Wing, Guy’s Dental Hospital, London Bridge, London SE1 9RT, UK; (R.B.); (K.I.); (F.F.); (A.B.); (R.D.K.); (S.D.); (F.M.)
- Correspondence: ; Tel.: +44-(0)207188-1573
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Kurzrock R, Bowles DW, Kang H, Meric-Bernstam F, Hainsworth J, Spigel DR, Bose R, Burris H, Sweeney CJ, Beattie MS, Blotner S, Schulze K, Cuchelkar V, Swanton C. Targeted therapy for advanced salivary gland carcinoma based on molecular profiling: results from MyPathway, a phase IIa multiple basket study. Ann Oncol 2020; 31:412-421. [PMID: 32067683 PMCID: PMC9743163 DOI: 10.1016/j.annonc.2019.11.018] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/08/2019] [Accepted: 11/28/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Systemic therapy options for salivary cancers are limited. MyPathway (NCT02091141), a phase IIa study, evaluates targeted therapies in non-indicated tumor types with actionable molecular alterations. Here, we present the efficacy and safety results for a subgroup of MyPathway patients with advanced salivary gland cancer (SGC) matched to targeted therapies based on tumor molecular characteristics. PATIENTS AND METHODS MyPathway is an ongoing, multiple basket, open-label, non-randomized, multi-center study. Patients with advanced SGC received pertuzumab + trastuzumab (HER2 alteration), vismodegib (PTCH-1/SMO mutation), vemurafenib (BRAF V600 mutation), or atezolizumab [high tumor mutational burden (TMB)]. The primary endpoint is the objective response rate (ORR). RESULTS As of January 15, 2018, 19 patients with SGC were enrolled and treated in MyPathway (15 with HER2 amplification and/or overexpression and one each with a HER2 mutation without amplification or overexpression, PTCH-1 mutation, BRAF mutation, and high TMB). In the 15 patients with HER2 amplification/overexpression (with or without mutations) who were treated with pertuzumab + trastuzumab, 9 had an objective response (1 complete response, 8 partial responses) for an ORR of 60% (9.2 months median response duration). The clinical benefit rate (defined by patients with objective responses or stable disease >4 months) was 67% (10/15), median progression-free survival (PFS) was 8.6 months, and median overall survival was 20.4 months. Stable disease was observed in the patient with a HER2 mutation (pertuzumab + trastuzumab, n = 1/1, PFS 11.0 months), and partial responses in patients with the PTCH-1 mutation (vismodegib, n = 1/1, PFS 14.3 months), BRAF mutation (vemurafenib, n = 1/1, PFS 18.5 months), and high TMB (atezolizumab, n = 1/1, PFS 5.5+ months). No unexpected toxicity occurred. CONCLUSIONS Overall, 12 of 19 patients (63%) with advanced SGC, treated with chemotherapy-free regimens matched to specific molecular alterations, experienced an objective response. Data from MyPathway suggest that matched targeted therapy for SGC has promising efficacy, supporting molecular profiling in treatment determination.
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Affiliation(s)
- R. Kurzrock
- Moores Cancer Center, UC San Diego, San Diego,Correspondence to: Dr Razelle Kurzrock, Moores Cancer Center, UC San Diego, 3855 Health Sciences Dr. #1503, La Jolla, CA 92093, USA. Tel: +1-858-246-1102; Fax: +1-858-246-1915, (R. Kurzrock)
| | - D. W. Bowles
- Department of Medicine, University of Colorado Denver, Aurora
| | - H. Kang
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore
| | - F. Meric-Bernstam
- Department of Investigational Cancer Therapeutics, University of Texas MD Anderson Cancer Center, Houston
| | - J. Hainsworth
- Oncology Department, Sarah Cannon Research Institute, Nashville,Tennessee Oncology, PLLC, Nashville
| | - D. R. Spigel
- Oncology Department, Sarah Cannon Research Institute, Nashville,Tennessee Oncology, PLLC, Nashville
| | - R. Bose
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis
| | - H. Burris
- Oncology Department, Sarah Cannon Research Institute, Nashville,Tennessee Oncology, PLLC, Nashville
| | - C. J. Sweeney
- Dana-Farber Cancer Institute, Harvard Medical School, Boston
| | - M. S. Beattie
- Department of Product Development, Medical Affairs, F. Hoffmann-La Roche, South San Francisco, USA
| | - S. Blotner
- Department of Biostatistics, South San Francisco, USA
| | - K. Schulze
- Department of Oncology Biomarker Development, South San Francisco, USA
| | - V. Cuchelkar
- Department of BioOncology, Genentech, Inc., South San Francisco, USA
| | - C. Swanton
- Department of Tumour Biology, Francis Crick Institute, London, UK
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Mukherjee A, Mazumder M, Jana J, Srivastava AK, Mondal B, De A, Ghosh S, Saha U, Bose R, Chatterjee S, Dey N, Basu D. Enhancement of ABA Sensitivity Through Conditional Expression of the ARF10 Gene in Brassica juncea Reveals Fertile Plants with Tolerance Against Alternaria brassicicola. Mol Plant Microbe Interact 2019; 32:1429-1447. [PMID: 31184524 DOI: 10.1094/mpmi-05-19-0132-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Concomitant increase of auxin-responsive factors ARF16 and ARF17, along with enhanced expression of ARF10 in resistant Sinapis alba compared with that in susceptible Brassica juncea upon challenge with Alternaria brassicicola, revealed that abscisic acid (ABA)-auxin crosstalk is a critical factor for resistance response. Here, we induced the ABA response through conditional expression of ARF10 in B. juncea using the A. brassicicola-inducible GH3.3 promoter. Induced ABA sensitivity caused by conditional expression of ARF10 in transgenic B. juncea resulted in tolerance against A. brassicicola and led to enhanced expression of several ABA-responsive genes without affecting the auxin biosynthetic gene expression. Compared with ABI3 and ABI4, ABI5 showed maximum upregulation in the most tolerant transgenic lines upon pathogen challenge. Moreover, elevated expression of ARF10 by different means revealed a direct correlation between ARF10 expression and the induction of ABI5 protein in B. juncea. Through in vitro DNA-protein experiments and chromosome immunoprecipitation using the ARF10 antibody, we demonstrated that ARF10 interacts with the auxin-responsive elements of the ABI5 promoter. This suggests that ARF10 may function as a modulator of ABI5 to induce ABA sensitivity and mediate the resistance response against A. brassicicola.
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Affiliation(s)
- Amrita Mukherjee
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
| | - Mrinmoy Mazumder
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
| | - Jagannath Jana
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
- Institut Curie, CNRS UMR 3348, Orsay, France
| | - Archana Kumari Srivastava
- Plant and Microbial biotechnology, Institute of Life Sciences (ILS), NALCO Square, Bhubaneswar, 751023, Odisha, India
| | - Banani Mondal
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
| | - Aishee De
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
| | - Swagata Ghosh
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
| | - Upala Saha
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
- Department of Botany, Sister Nivedita Government General Degree College for Girls, 20B Judge's Court Road, Hastings House, Alipore, Kolkata, 700027, West Bengal, India
| | - Rahul Bose
- Department of Genetics, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Subhrangsu Chatterjee
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
| | - Nrisingha Dey
- Plant and Microbial biotechnology, Institute of Life Sciences (ILS), NALCO Square, Bhubaneswar, 751023, Odisha, India
| | - Debabrata Basu
- Division of Plant Biology, Bose Institute, Centenary Campus P-1/12 C.I.T., Scheme-VIIM Kolkata, 700054, West Bengal, India
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Bahramnejad B, Naji M, Bose R, Jha S. A critical review on use of Agrobacterium rhizogenes and their associated binary vectors for plant transformation. Biotechnol Adv 2019; 37:107405. [PMID: 31185263 DOI: 10.1016/j.biotechadv.2019.06.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/27/2019] [Accepted: 06/04/2019] [Indexed: 12/21/2022]
Abstract
Agrobacterium rhizogenes, along with A. tumefaciens, has been used to affect genetic transformation in plants for many years. Detailed studies conducted in the past have uncovered the basic mechanism of foreign gene transfer and the implication of Ri/Ti plasmids in this process. A number of reviews exist describing the usage of binary vectors with A. tumefaciens, but no comprehensive account of the numerous binary vectors employed with A. rhizogenes and their successful applications has been published till date. In this review, we recollect a brief history of development of Ri-plasmid/Ri-T-DNA based binary vectors systems and their successful implementation with A. rhizogenes for different applications. The modification of native Ri plasmid to introduce foreign genes followed by development of binary vector using Ri plasmid and how it facilitated rapid and feasible genetic manipulation, earlier impossible with native Ri plasmid, have been discussed. An important milestone was the development of inducible plant expressing promoter systems which made expression of toxic genes in plant systems possible. The successful application of binary vectors in conjunction with A. rhizogenes in gene silencing and genome editing studies which are relatively newer developments, demonstrating the amenability and adaptability of hairy roots systems to make possible studying previously intractable research areas have been summarized in the present review.
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Affiliation(s)
- Bahman Bahramnejad
- Department of Agronomy and Plant Breeding, University of Kurdistan, Sanandaj, Kurdistan 66177-15175, Iran.
| | - Mohammad Naji
- Department of Agronomy and Plant Breeding, University of Kurdistan, Sanandaj, Kurdistan 66177-15175, Iran
| | - Rahul Bose
- Department of Genetics, University of Calcutta, Kolkata 700019, India
| | - Sumita Jha
- Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India
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Chen I, Guo F, Summa T, Luo J, Ellis MJ, Ma CX, Weilbaecher KN, Naughton MJ, Suresh R, Peterson LL, Cherian MA, Bose R, Frith AE, Hernandez-Aya LF, Gillanders WE, Ademuyiwa FO. Abstract P1-15-05: Is absolute lymphocyte count associated with platinum-sensitivity? A phase II single arm study evaluating the efficacy of neoadjuvant carboplatin and docetaxel in triple negative breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-15-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Platinum-based chemotherapy is still considered investigational for the treatment of sporadic triple negative breast cancer (TNBC). Since patients with TNBC have a high rate of chemotherapy resistance, it is critical to identify platinum-sensitive individuals prior to initiating therapy. Higher absolute lymphocyte count (ALC) is associated with improved clinical response to anthracycline-based chemotherapy, the current standard of care in TNBC. We report the initial results of a phase II single arm study evaluating the efficacy of neoadjuvant carboplatin and docetaxel in TNBC. We also report results of an exploratory analysis assessing whether ALC can be used to predict pathologic complete response (pCR) after treatment with platinum-based chemotherapy.
Patients and Methods: 78 patients with clinical stage II or III TNBC have been enrolled in this ongoing study evaluating the efficacy of neoadjuvant carboplatin and docetaxel (NCT201404107). Patients received docetaxel 75 mg/m2 and carboplatin AUC 6 every three weeks for a total of 6 cycles. Blood samples were collected prior to each cycle, and a posttreatment sample was collected > 3 weeks after completing cycle 6. pCR was defined as no residual invasive disease in the breast, with or without ductal carcinoma in situ, and no tumor deposits in sampled lymph nodes. Baseline characteristics of patients were summarized with descriptive statistics. Univariate and multivariate logistic regression analyses were used to identify factors associated with pCR.
Results: Out of the 78 enrolled patients, 60 have completed all 6 treatment cycles and surgery. The preliminary pCR rate is 46.7%. Age, race, clinical stage, and tumor grade determined at time of diagnosis were not significantly different between pCR patients and non-pCR patients. In univariate analyses, patients with higher ALCs at the posttreatment time point were more likely to have pCR than those who had lower ALCs (OR 5.5, 95% CI 1.5-20.7, p=0.011). Additionally, patients who had higher minimum ALCs were also more likely to have pCR (OR 9.1, 95% CI 1.5-54.9, p=0.016). Baseline ALC values were not associated with pCR. The associations of posttreatment and minimum ALCs to pCR remained statistically significant even after controlling for age and clinical stage at time of diagnosis (posttreatment ALC OR 7.6, 95% CI 1.7-34.8, p=0.009; minimum ALC OR 9.0, 95% CI 1.5-55.2, p=0.018).
Conclusion: The pCR rate of our cohort is similar to that of other trials evaluating neoadjuvant platinum-based chemotherapy in TNBC. Baseline ALC did not predict which patients would achieve pCR. However, the associations of posttreatment and minimum ALCs with pCR indicate patients who are able to maintain a robust population of circulating lymphocytes throughout treatment with platinum-based chemotherapy are more likely to respond favorably. The link between patient immunity and platinum-based chemotherapy suggests addition of immunotherapy agents to neoadjuvant chemotherapy may improve patient outcomes.
Citation Format: Chen I, Guo F, Summa T, Luo J, Ellis MJ, Ma CX, Weilbaecher KN, Naughton MJ, Suresh R, Peterson LL, Cherian MA, Bose R, Frith AE, Hernandez-Aya LF, Gillanders WE, Ademuyiwa FO. Is absolute lymphocyte count associated with platinum-sensitivity? A phase II single arm study evaluating the efficacy of neoadjuvant carboplatin and docetaxel in triple negative breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-15-05.
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Affiliation(s)
- I Chen
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - F Guo
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - T Summa
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - J Luo
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - MJ Ellis
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - CX Ma
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - KN Weilbaecher
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - MJ Naughton
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - R Suresh
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - LL Peterson
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - MA Cherian
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - R Bose
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - AE Frith
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - LF Hernandez-Aya
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - WE Gillanders
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
| | - FO Ademuyiwa
- Washington University School of Medicine in St Louis, Saint Louis, MO; Baylor College of Medicine, Houston, TX
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Delaloge S, Hurvitz S, Chan N, Bose R, Jankowitz RC, Thirlwell M, Láng I, ten Tije A, Trudeau M, Osborne CR, Shen ZZ, Lalla D, Xu F, Hunt D, Olek E, Tripathy D, Rugo HS, Chien J, Chan A, Barcenas CH. Abstract P2-13-03: The impact of neratinib with or without anti-diarrheal prophylaxis on health-related quality of life in HER2+ early-stage breast cancer: Analyses from the ExteNET and CONTROL trials. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-13-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Neratinib is an irreversible pan-HER tyrosine kinase inhibitor. ExteNET, a randomized placebo-controlled phase III study, showed that neratinib given for 12 months after trastuzumab-based adjuvant therapy significantly improved 2-year (HR 0.67; 95% CI 0.50–0.91; p=0.0091) and 5-year (HR 0.73; 95% CI 0.57-0.92; p=0.008) iDFS in pts with early-stage HER2+ breast cancer. Anti-diarrheal prophylaxis was not mandated by protocol; grade 3/4 diarrhea occurred in 40% of pts with a median cumulative duration of 5 days. The phase II CONTROL study was initiated to investigate the effectiveness of various prophylactic regimens in the prevention of neratinib-associated diarrhea. Loperamide (L) alone or in combination with add-on agents targeting underlying inflammation [i.e. budesonide (BUD)] or bile acid malabsorption [i.e. colestipol (COL)] were tested. We report longitudinal HRQoL findings from both ExteNET and CONTROL.
Methods: Pts with early-stage HER2+ breast cancer who had received trastuzumab-based adjuvant therapy were eligible for both studies. In ExteNET, pts received neratinib or placebo for 12 months. In CONTROL, pts received neratinib for 13 x 28-day cycles combined with L, L + BUD or L + COL for 1 or 2 cycles (see table for schedules). HRQoL was assessed using Functional Assessment of Cancer Therapy–Breast (FACT-B), v4.0, at baseline, months 1, 3, 6, 9, 12 (ExteNET) or baseline, cycles 2, 4, 7, 10, 13 (CONTROL). Changes in scores from baseline were considered to be clinically meaningful if greater than the lowest estimate for an 'important difference' (ID) reported in the literature. Evaluable pts were required to have HRQoL assessments at baseline and at least 1 post-baseline. ClinicalTrials.gov: NCT00878709 (ExteNET); NCT02400476 (CONTROL).
Results: HRQoL findings are summarized in the table. Hospitalization rates due to diarrhea: 1.5% (neratinib + L), 0% (other cohorts) in CONTROL; and 1.4% (neratinib), 0.1% (placebo) in ExteNET.
Mean change from baselineStudyCohort/GroupM1M3M6M9M12 FACT-B TOTAL (ID range: 7–8 points)CONTROLN + La,b (N=40)–3.8–4.5–1.5–2.5–3.3 N + L + BUDa,b,c (N=62)–6.0–4.9–1.6–3.6–4.5 N + L + COLa,b,d (N=125)–3.8–2.0–4.0–4.6–3.6 N + L prn + COLa,d (N=85)–1.8–1.54.0e––ExteNETN + L prna (N=1124)–4.6–3.4–3.5–3.3–3.7 P (N=1188)–1.7–3.5–2.9–2.9–2.8 FACT-B PWB (ID range: 2–3 points)CONTROLN + La,b (N=40)–4.0–2.3–1.9–2.4–2.3 N + L + BUDa,b,c (N=62)–3.2–2.1–1.4–1.7–1.7 N + L + COLa,b,d (N=125)–2.8–2.0–2.4–2.5–2.4 N + L prn + COLa,d (N=85)–2.8–1.80.0e––ExteNETN + L prna (N=1124)–2.9–1.9–1.7–1.6–1.5 P (N=1188)–0.6–0.8–0.7–0.6–0.4C, cycle; L, loperamide; M, month; N, neratinib; prn, as needed; PWB, physical well-being. CONTROL cut-off: 1 May 2018. aN 240 mg qd for 13 x 28d cycles or 12 months; bL 4 mg, then 4 mg tid d1-14, then 4 mg bid d15-28 or d15-56, then prn; cBUD 9 mg qd d1-28; dCOL 2 g qd d1-28; en=1.
Conclusions: Adjuvant neratinib with or without anti-diarrheal prophylaxis was associated with small decreases in HRQoL. With the exception of the FACT-B PWB subscale, HRQoL changes did not reach clinically meaningful thresholds. Follow-up in CONTROL is ongoing.
Citation Format: Delaloge S, Hurvitz S, Chan N, Bose R, Jankowitz RC, Thirlwell M, Láng I, ten Tije A, Trudeau M, Osborne CR, Shen Z-Z, Lalla D, Xu F, Hunt D, Olek E, Tripathy D, Rugo HS, Chien J, Chan A, Barcenas CH. The impact of neratinib with or without anti-diarrheal prophylaxis on health-related quality of life in HER2+ early-stage breast cancer: Analyses from the ExteNET and CONTROL trials [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-13-03.
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Affiliation(s)
- S Delaloge
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - S Hurvitz
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - N Chan
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - R Bose
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - RC Jankowitz
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - M Thirlwell
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - I Láng
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - A ten Tije
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - M Trudeau
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - CR Osborne
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - Z-Z Shen
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - D Lalla
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - F Xu
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - D Hunt
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - E Olek
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - D Tripathy
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - HS Rugo
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - J Chien
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - A Chan
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
| | - CH Barcenas
- Institut Gustave Roussy, Villejuif, France; UCLA Hematology / Oncology Clinical Research Unit, Los Angeles, CA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; Washington University School of Medicine, St. Louis, MO; UPMC Magee-Womens Hospital, Breast Center, Pittsburgh, PA; McGill University Health Centre Cedars Cancer Centre, Montreál, Canada; Orszagos Onkologiai Intezet "B" Belgyogyaszati Osztaly, Budapest, Hungary; Amphia Ziekenhuis, Breda, Netherlands; Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada; Texas Oncology, PA and US Oncology, Dallas, TX; Shanghai Cancer Center, Fudan University, Shanghai, China; Puma Biotechnology Inc., Los Angeles, CA; MD Anderson Cancer Center, Houston, TX; UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA; Breast Cancer Research Centre-Western Australia and Curtin University, Nedlands, Australia
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Exman P, Garrido-Castro A, Hughes ME, Freedman RA, Ma C, Bose R, Cerami E, Wagle N, Barroso-Sousa R, Fitz CD, Lindeman NI, MacConaill L, Bychkovsky BL, Lloyd MR, Mackichan CR, Kumari P, Tolaney SM, Krop IE, Winer EP, Dillon DA, Lin NU. Abstract P4-04-02: Identifying ERBB-2 activating mutations (mts) in HER2 negative tumors for clinical trials – Impact of institute-wide genomic testing and trial matching on trial enrollment in clinical practice. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-04-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction
Tailored treatment trials with biomarker-driven hypotheses are becoming an important strategy in drug development. Umbrella, basket and enrichment trials with eligibility predicated upon results of tumor sequencing are increasingly common. Several institutional and commercial genomic assays have been developed. However, the value of broad-based testing in recruiting patients (pts) to molecular-based clinical trials designed for small subgroups has not been fully evaluated and has been challenging to assess in a real-world setting. We evaluated the likelihood of trial enrollment based upon an institute-wide genomic test.
Methods
Since 2013, all pts with metastatic breast cancer (MBC) seen at least once at Dana-Farber Cancer Institute have been offered the option of tumor sequencing using multiplexed copy number variation (CNV) and mts detection across the full coding regions of a total of 447 cancer genes and 191 regions across 60 genes for rearrangement detection (Oncopanel; OP). For our primary analysis, we selected the ongoing multi-center phase II trial (NCT01670877) activated at our site on Sep 30, 2013, evaluating neratinib in ERBB-2 mutated pts, as the study provided a clear delineation of eligible mts, and timing of slot availability was retrievable retrospectively over an extended time frame. Our primary aim was to describe the proportion of pts with a qualifying ERBB-2 mt detected by OP who enrolled on the selected trial. Secondary objectives included median time from OP result to trial registration and description of ERBB-2 mts spectrum within each subtype. Associations were calculated by Fisher's test.
Results
We identified a total of 1,046 pts with HER-2 negative MBC and who had OP results between Sep 1, 2013 and Jun 1, 2017. A total of 43 pts (4.1%) were found to have ERBB-2 mts. Of these, 20 (1.9%) had activating eligible mts. The proportion of these pts who enrolled in the trial was 30% (6/20). Of the remaining 14 pts, 5 screen-failed and 2 were enrolled with known ERBB-2 mt through other testing modalities. Seven of 20 (35%) molecularly eligible pts were not approached (3 pts lost to follow-up, 3 enrolled in other clinical trials and 1 pt chose standard treatment). The median time from OP result to trial enrollment was 85 days (34-554). A significantly higher frequency of ERBB2 activating mts was found in ER+ compared to ER- primary tumors (2.5% vs. 0.3%, p =0.036), and in lobular tumors compared with ductal (5.5% vs. 1.25%, p=0.003). Frequency of eligible mts in primary tumors were similar to metastatic site (1.9% and 1.8%, respectively p=1.0)
Discussion
In this cohort, activating ERBB-2 mts were present in 20 of 1046 (1.9%) pts tested. Although over half of pts with eligible mts on OP testing were approached for NCT01670877, only 0.5% of the total tested population were enrolled (6/1046). Our data illustrate the substantial challenges in screening and enrolling to trials of rare subsets, even within a large academic institution, and point to the need for creative and novel approaches to leverage pts and community- and academic-based providers to more effectively support the success of such studies.
Citation Format: Exman P, Garrido-Castro A, Hughes ME, Freedman RA, Ma C, Bose R, Cerami E, Wagle N, Barroso-Sousa R, Fitz CD, Lindeman NI, MacConaill L, Bychkovsky BL, Lloyd MR, Mackichan CR, Kumari P, Tolaney SM, Krop IE, Winer EP, Dillon DA, Lin NU. Identifying ERBB-2 activating mutations (mts) in HER2 negative tumors for clinical trials – Impact of institute-wide genomic testing and trial matching on trial enrollment in clinical practice [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-04-02.
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Affiliation(s)
- P Exman
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - A Garrido-Castro
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - ME Hughes
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - RA Freedman
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - C Ma
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - R Bose
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - E Cerami
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - N Wagle
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - R Barroso-Sousa
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - CD Fitz
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - NI Lindeman
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - L MacConaill
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - BL Bychkovsky
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - MR Lloyd
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - CR Mackichan
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - P Kumari
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - SM Tolaney
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - IE Krop
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - EP Winer
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - DA Dillon
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
| | - NU Lin
- Dana Farber Cancer Institute, Boston, MA; Washington University School of Medicine in St Louis, St. Louis, MO; Brigham and Women's Hospital, Boston, MA
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McLean K, Glasbey J, Borakati A, Brooks T, Chang H, Choi S, Goodson R, Nielsen M, Pronin S, Salloum N, Sewart E, Vanniasegaram D, Drake T, Gillies M, Harrison E, Chapman S, Khatri C, Kong C, Claireaux H, Bath M, Mohan M, McNamee L, Kelly M, Mitchell H, Fitzgerald J, Bhangu A, Nepogodiev D, Antoniou I, Dean R, Davies N, Trecarten S, Henderson I, Holmes C, Wylie J, Shuttleworth R, Jindal A, Hughes F, Gouda P, Fleck R, Hanrahan M, Karunakaran P, Chen J, Sykes M, Sethi R, Suresh S, Patel P, Patel M, Varma R, Mushtaq J, Gundogan B, Bolton W, Khan T, Burke J, Morley R, Favero N, Adams R, Thirumal V, Kennedy E, Ong K, Tan Y, Gabriel J, Bakhsh A, Low J, Yener A, Paraoan V, Preece R, Tilston T, Cumber E, Dean S, Ross T, McCance E, Amin H, Satterthwaite L, Clement K, Gratton R, Mills E, Chiu S, Hung G, Rafiq N, Hayes J, Robertson K, Dynes K, Huang H, Assadullah S, Duncumb J, Moon R, Poo S, Mehta J, Joshi K, Callan R, Norris J, Chilvers N, Keevil H, Jull P, Mallick S, Elf D, Carr L, Player C, Barton E, Martin A, Ratu S, Roberts E, Phan P, Dyal A, Rogers J, Henson A, Reid N, Burke D, Culleton G, Lynne S, Mansoor S, Brennan C, Blessed R, Holloway C, Hill A, Goldsmith T, Mackin S, Kim S, Woin E, Brent G, Coffin J, Ziff O, Momoh Z, Debenham R, Ahmed M, Yong C, Wan J, Copley H, Raut P, Chaudhry F, Nixon G, Dorman C, Tan R, Kanabar S, Canning N, Dolaghan M, Bell N, McMenamin M, Chhabra A, Duke K, Turner L, Patel T, Chew L, Mirza M, Lunawat S, Oremule B, Ward N, Khan M, Tan E, Maclennan D, McGregor R, Chisholm E, Griffin E, Bell L, Hughes B, Davies J, Haq H, Ahmed H, Ungcharoen N, Whacha C, Thethi R, Markham R, Lee A, Batt E, Bullock N, Francescon C, Davies J, Shafiq N, Zhao J, Vivekanantham S, Barai I, Allen J, Marshall D, McIntyre C, Wilson H, Ashton A, Lek C, Behar N, Davis-Hall M, Seneviratne N, Esteve L, Sirakaya M, Ali S, Pope S, Ahn J, Craig-McQuaide A, Gatfield W, Leong S, Demetri A, Kerr A, Rees C, Loveday J, Liu S, Wijesekera M, Maru D, Attalla M, Smith N, Brown D, Sritharan P, Shah A, Charavanamuttu V, Heppenstall-Harris G, Ng K, Raghvani T, Rajan N, Hulley K, Moody N, Williams M, Cotton A, Sharifpour M, Lwin K, Bright M, Chitnis A, Abdelhadi M, Semana A, Morgan F, Reid R, Dickson J, Anderson L, McMullan R, Ahern N, Asmadi A, Anderson L, Boon Xuan JL, Crozier L, McAleer S, Lees D, Adebayo A, Das M, Amphlett A, Al-Robeye A, Valli A, Khangura J, Winarski A, Ali A, Woodward H, Gouldthrope C, Turner M, Sasapu K, Tonkins M, Wild J, Robinson M, Hardie J, Heminway R, Narramore R, Ramjeeawon N, Hibberd A, Winslow F, Ho W, Chong B, Lim K, Ho S, Crewdson J, Singagireson S, Kalra N, Koumpa F, Jhala H, Soon W, Karia M, Rasiah M, Xylas D, Gilbert H, Sundar-Singh M, Wills J, Akhtar S, Patel S, Hu L, Brathwaite-Shirley C, Nayee H, Amin O, Rangan T, Turner E, McCrann C, Shepherd R, Patel N, Prest-Smith J, Auyoung E, Murtaza A, Coates A, Prys-Jones O, King M, Gaffney S, Dewdney C, Nehikhare I, Lavery J, Bassett J, Davies K, Ahmad K, Collins A, Acres M, Egerton C, Cheng K, Chen X, Chan N, Sheldon A, Khan S, Empey J, Ingram E, Malik A, Johnstone M, Goodier R, Shah J, Giles J, Sanders J, McLure S, Pal S, Rangedara A, Baker A, Asbjoernsen C, Girling C, Gray L, Gauntlett L, Joyner C, Qureshi S, Mogan Y, Ng J, Kumar A, Park J, Tan D, Choo K, Raman K, Buakuma P, Xiao C, Govinden S, Thompson O, Charalambos M, Brown E, Karsan R, Dogra T, Bullman L, Dawson P, Frank A, Abid H, Tung L, Qureshi U, Tahmina A, Matthews B, Harris R, O'Connor A, Mazan K, Iqbal S, Stanger S, Thompson J, Sullivan J, Uppal E, MacAskill A, Bamgbose F, Neophytou C, Carroll A, Rookes C, Datta U, Dhutia A, Rashid S, Ahmed N, Lo T, Bhanderi S, Blore C, Ahmed S, Shaheen H, Abburu S, Majid S, Abbas Z, Talukdar S, Burney L, Patel J, Al-Obaedi O, Roberts A, Mahboob S, Singh B, Sheth S, Karia P, Prabhudesai A, Kow K, Koysombat K, Wang S, Morrison P, Maheswaran Y, Keane P, Copley P, Brewster O, Xu G, Harries P, Wall C, Al-Mousawi A, Bonsu S, Cunha P, Ward T, Paul J, Nadanakumaran K, Tayeh S, Holyoak H, Remedios J, Theodoropoulou K, Luhishi A, Jacob L, Long F, Atayi A, Sarwar S, Parker O, Harvey J, Ross H, Rampal R, Thomas G, Vanmali P, McGowan C, Stein J, Robertson V, Carthew L, Teng V, Fong J, Street A, Thakker C, O'Reilly D, Bravo M, Pizzolato A, Khokhar H, Ryan M, Cheskes L, Carr R, Salih A, Bassiony S, Yuen R, Chrastek D, Rosen O'Sullivan H, Amajuoyi A, Wang A, Sitta O, Wye J, Qamar M, Major C, Kaushal A, Morgan C, Petrarca M, Allot R, Verma K, Dutt S, Chilima C, Peroos S, Kosasih S, Chin H, Ashken L, Pearse R, O'Loughlin R, Menon A, Singh K, Norton J, Sagar R, Jathanna N, Rothwell L, Watson N, Harding F, Dube P, Khalid H, Punjabi N, Sagmeister M, Gill P, Shahid S, Hudson-Phillips S, George D, Ashwood J, Lewis T, Dhar M, Sangal P, Rhema I, Kotecha D, Afzal Z, Syeed J, Prakash E, Jalota P, Herron J, Kimani L, Delport A, Shukla A, Agarwal V, Parthiban S, Thakur H, Cymes W, Rinkoff S, Turnbull J, Hayat M, Darr S, Khan U, Lim J, Higgins A, Lakshmipathy G, Forte B, Canning E, Jaitley A, Lamont J, Toner E, Ghaffar A, McDowell M, Salmon D, O'Carroll O, Khan A, Kelly M, Clesham K, Palmer C, Lyons R, Bell A, Chin R, Waldron R, Trimble A, Cox S, Ashfaq U, Campbell J, Holliday R, McCabe G, Morris F, Priestland R, Vernon O, Ledsam A, Vaughan R, Lim D, Bakewell Z, Hughes R, Koshy R, Jackson H, Narayan P, Cardwell A, Jubainville C, Arif T, Elliott L, Gupta V, Bhaskaran G, Odeleye A, Ahmed F, Shah R, Pickard J, Suleman Y, North A, McClymont L, Hussain N, Ibrahim I, Ng G, Wong V, Lim A, Harris L, Tharmachandirar T, Mittapalli D, Patel V, Lakhani M, Bazeer H, Narwani V, Sandhu K, Wingfield L, Gentry S, Adjei H, Bhatti M, Braganza L, Barnes J, Mistry S, Chillarge G, Stokes S, Cleere J, Wadanamby S, Bucko A, Meek J, Boxall N, Heywood E, Wiltshire J, Toh C, Ward A, Shurovi B, Horth D, Patel B, Ali B, Spencer T, Axelson T, Kretzmer L, Chhina C, Anandarajah C, Fautz T, Horst C, Thevathasan A, Ng J, Hirst F, Brewer C, Logan A, Lockey J, Forrest P, Keelty N, Wood A, Springford L, Avery P, Schulz T, Bemand T, Howells L, Collier H, Khajuria A, Tharakan R, Parsons S, Buchan A, McGalliard R, Mason J, Cundy O, Li N, Redgrave N, Watson R, Pezas T, Dennis Y, Segall E, Hameed M, Lynch A, Chamberlain M, Peck F, Neo Y, Russell G, Elseedawy M, Lee S, Foster N, Soo Y, Puan L, Dennis R, Goradia H, Qureshi A, Osman S, Reeves T, Dinsmore L, Marsden M, Lu Q, Pitts-Tucker T, Dunn C, Walford R, Heathcote E, Martin R, Pericleous A, Brzyska K, Reid K, Williams M, Wetherall N, McAleer E, Thomas D, Kiff R, Milne S, Holmes M, Bartlett J, Lucas de Carvalho J, Bloomfield T, Tongo F, Bremner R, Yong N, Atraszkiewicz B, Mehdi A, Tahir M, Sherliker G, Tear A, Pandey A, Broyd A, Omer H, Raphael M, Chaudhry W, Shahidi S, Jawad A, Gill C, Fisher IH, Adeleja I, Clark I, Aidoo-Micah G, Stather P, Salam G, Glover T, Deas G, Sim N, Obute R, Wynell-Mayow W, Sait M, Mitha N, de Bernier G, Siddiqui M, Shaunak R, Wali A, Cuthbert G, Bhudia R, Webb E, Shah S, Ansari N, Perera M, Kelly N, McAllister R, Stanley G, Keane C, Shatkar V, Maxwell-Armstrong C, Henderson L, Maple N, Manson R, Adams R, Semple E, Mills M, Daoub A, Marsh A, Ramnarine A, Hartley J, Malaj M, Jewell P, Whatling E, Hitchen N, Chen M, Goh B, Fern J, Rogers S, Derbyshire L, Robertson D, Abuhussein N, Deekonda P, Abid A, Harrison P, Aildasani L, Turley H, Sherif M, Pandey G, Filby J, Johnston A, Burke E, Mohamud M, Gohil K, Tsui A, Singh R, Lim S, O'Sullivan K, McKelvey L, O'Neill S, Roberts H, Brown F, Cao Y, Buckle R, Liew Y, Sii S, Ventre C, Graham C, Filipescu T, Yousif A, Dawar R, Wright A, Peters M, Varley R, Owczarek S, Hartley S, Khattak M, Iqbal A, Ali M, Durrani B, Narang Y, Bethell G, Horne L, Pinto R, Nicholls K, Kisyov I, Torrance H, English W, Lakhani S, Ashraf S, Venn M, Elangovan V, Kazmi Z, Brecher J, Sukumar S, Mastan A, Mortimer A, Parker J, Boyle J, Elkawafi M, Beckett J, Mohite A, Narain A, Mazumdar E, Sreh A, Hague A, Weinberg D, Fletcher L, Steel M, Shufflebotham H, Masood M, Sinha Y, Jenvey C, Kitt H, Slade R, Craig A, Deall C, Reakes T, Chervenkoff J, Strange E, O'Bryan M, Murkin C, Joshi D, Bergara T, Naqib S, Wylam D, Scotcher S, Hewitt C, Stoddart M, Kerai A, Trist A, Cole S, Knight C, Stevens S, Cooper G, Ingham R, Dobson J, O'Kane A, Moradzadeh J, Duffy A, Henderson C, Ashraf S, McLaughin C, Hoskins T, Reehal R, Bookless L, McLean R, Stone E, Wright E, Abdikadir H, Roberts C, Spence O, Srikantharajah M, Ruiz E, Matthews J, Gardner E, Hester E, Naran P, Simpson R, Minhas M, Cornish E, Semnani S, Rojoa D, Radotra A, Eraifej J, Eparh K, Smith D, Mistry B, Hickling S, Din W, Liu C, Mithrakumar P, Mirdavoudi V, Rashid M, Mcgenity C, Hussain O, Kadicheeni M, Gardner H, Anim-Addo N, Pearce J, Aslanyan A, Ntala C, Sorah T, Parkin J, Alizadeh M, White A, Edozie F, Johnston J, Kahar A, Navayogaarajah V, Patel B, Carter D, Khonsari P, Burgess A, Kong C, Ponweera A, Cody A, Tan Y, Ng A, Croall A, Allan C, Ng S, Raghuvir V, Telfer R, Greenhalgh A, McKerr C, Edison M, Patel B, Dear K, Hardy M, Williams P, Hassan S, Sajjad U, O'Neill E, Lopes S, Healy L, Jamal N, Tan S, Lazenby D, Husnoo S, Beecroft S, Sarvanandan T, Weston C, Bassam N, Rabinthiran S, Hayat U, Ng L, Varma D, Sukkari M, Mian A, Omar A, Kim J, Sellathurai J, Mahmood J, O'Connell C, Bose R, Heneghan H, Lalor P, Matheson J, Doherty C, Cullen C, Cooper D, Angelov S, Drislane C, Smith A, Kreibich A, Palkhi E, Durr A, Lotfallah A, Gold D, Mckean E, Dhanji A, Anilkumar A, Thacoor A, Siddiqui Z, Lim S, Piquet A, Anderson S, McCormack D, Gulati J, Ibrahim A, Murray S, Walsh S, McGrath A, Ziprin P, Chua E, Lou C, Bloomer J, Paine H, Osei-Kuffour D, White C, Szczap A, Gokani S, Patel K, Malys M, Reed A, Torlot G, Cumber E, Charania A, Ahmad S, Varma N, Cheema H, Austreng L, Petra H, Chaudhary M, Zegeye M, Cheung F, Coffey D, Heer R, Singh S, Seager E, Cumming S, Suresh R, Verma S, Ptacek I, Gwozdz A, Yang T, Khetarpal A, Shumon S, Fung T, Leung W, Kwang P, Chew L, Loke W, Curran A, Chan C, McGarrigle C, Mohan K, Cullen S, Wong E, Toale C, Collins D, Keane N, Traynor B, Shanahan D, Yan A, Jafree D, Topham C, Mitrasinovic S, Omara S, Bingham G, Lykoudis P, Miranda B, Whitehurst K, Kumaran G, Devabalan Y, Aziz H, Shoa M, Dindyal S, Yates J, Bernstein I, Rattan G, Coulson R, Stezaker S, Isaac A, Salem M, McBride A, McFarlane H, Yow L, MacDonald J, Bartlett R, Turaga S, White U, Liew W, Yim N, Ang A, Simpson A, McAuley D, Craig E, Murphy L, Shepherd P, Kee J, Abdulmajid A, Chung A, Warwick H, Livesey A, Holton P, Theodoreson M, Jenkin S, Turner J, Entwisle J, Marchal S, O'Connor S, Blege H, Aithie J, Sabine L, Stewart G, Jackson S, Kishore A, Lankage C, Acquaah F, Joyce H, McKevitt K, Coffey C, Fawaz A, Dolbec K, O'Sullivan D, Geraghty J, Lim E, Bolton L, FitzPatrick D, Robinson C, Ramtoola T, Collinson S, Grundy L, McEnhill P, Harbhajan Singh G, Loughran D, Golding D, Keeling R, Williams R, Whitham R, Yoganathan S, Nachiappan R, Egan R, Owasil R, Kwan M, He A, Goh R, Bhome R, Wilson H, Teoh P, Raji K, Jayakody N, Matthams J, Chong J, Luk C, Greig R, Trail M, Charalambous G, Rocke A, Gardiner N, Bulley F, Warren N, Brennan E, Fergurson P, Wilson R, Whittingham H, Brown E, Khanijau R, Gandhi K, Morris S, Boulton A, Chandan N, Barthorpe A, Maamari R, Sandhu S, McCann M, Higgs L, Balian V, Reeder C, Diaper C, Sale T, Ali H, Archer C, Clarke A, Heskin J, Hurst P, Farmer J, O'Flynn L, Doan L, Shuker B, Stott G, Vithanage N, Hoban K, Nesargikar P, Kennedy H, Grossart C, Tan E, Roy C, Sim P, Leslie K, Sim D, Abul M, Cody N, Tay A, Woon E, Sng S, Mah J, Robson J, Shakweh E, Wing V, Mills H, Li M, Barrow T, Balaji S, Jordan H, Phillips C, Naveed H, Hirani S, Tai A, Ratnakumaran R, Sahathevan A, Shafi A, Seedat M, Weaver R, Batho A, Punj R, Selvachandran H, Bhatt N, Botchey S, Khonat Z, Brennan K, Morrison C, Devlin E, Linton A, Galloway E, McGarvie S, Ramsay N, McRobbie H, Whewell H, Dean W, Nelaj S, Eragat M, Mishra A, Kane T, Zuhair M, Wells M, Wilkinson D, Woodcock N, Sun E, Aziz N, Ghaffar MKA. Critical care usage after major gastrointestinal and liver surgery: a prospective, multicentre observational study. Br J Anaesth 2019; 122:42-50. [PMID: 30579405 DOI: 10.1016/j.bja.2018.07.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Patient selection for critical care admission must balance patient safety with optimal resource allocation. This study aimed to determine the relationship between critical care admission, and postoperative mortality after abdominal surgery. METHODS This prespecified secondary analysis of a multicentre, prospective, observational study included consecutive patients enrolled in the DISCOVER study from UK and Republic of Ireland undergoing major gastrointestinal and liver surgery between October and December 2014. The primary outcome was 30-day mortality. Multivariate logistic regression was used to explore associations between critical care admission (planned and unplanned) and mortality, and inter-centre variation in critical care admission after emergency laparotomy. RESULTS Of 4529 patients included, 37.8% (n=1713) underwent planned critical care admissions from theatre. Some 3.1% (n=86/2816) admitted to ward-level care subsequently underwent unplanned critical care admission. Overall 30-day mortality was 2.9% (n=133/4519), and the risk-adjusted association between 30-day mortality and critical care admission was higher in unplanned [odds ratio (OR): 8.65, 95% confidence interval (CI): 3.51-19.97) than planned admissions (OR: 2.32, 95% CI: 1.43-3.85). Some 26.7% of patients (n=1210/4529) underwent emergency laparotomies. After adjustment, 49.3% (95% CI: 46.8-51.9%, P<0.001) were predicted to have planned critical care admissions, with 7% (n=10/145) of centres outside the 95% CI. CONCLUSIONS After risk adjustment, no 30-day survival benefit was identified for either planned or unplanned postoperative admissions to critical care within this cohort. This likely represents appropriate admission of the highest-risk patients. Planned admissions in selected, intermediate-risk patients may present a strategy to mitigate the risk of unplanned admission. Substantial inter-centre variation exists in planned critical care admissions after emergency laparotomies.
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Texier N, Deblauwe V, Stévart T, Sonké B, Simo-Droissart M, Azandi L, Bose R, Djuikouo MN, Kamdem G, Kamdem N, Mayogo S, Zemagho L, Droissart V. Spatio-temporal patterns of orchids flowering in Cameroonian rainforests. Int J Biometeorol 2018; 62:1931-1944. [PMID: 30215186 DOI: 10.1007/s00484-018-1594-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 07/23/2018] [Accepted: 07/24/2018] [Indexed: 06/08/2023]
Abstract
We characterized the flowering patterns of 45 epiphytic orchid species occurring in Cameroonian rainforests to explore the environmental and evolutionary forces driving their phenology. We used a dataset of 3470 flowering events recorded over a period of 11 years in the Yaoundé living collection (82% of the flowering events) and from in situ observations (18% of the flowering events) to (i) describe flowering frequency and timing and synchronization among taxa; (ii) test flowering patterns for phylogenetic relatedness at the generic level; and (iii) investigate the spatial patterns of phenology. An annual flowering pattern prevailed among the species selected for this study. The species-rich African genera Angraecum and Polystachya are characterized by subannual and annual frequency patterns, respectively. However, in terms of flowering time, no phylogenetic signal was detected for the four most diverse genera (Ancistrorhynchus, Angraecum, Bulbophyllum, and Polystachya). Results suggest also an important role of photoperiod and precipitation as climatic triggers of flowering patterns. Moreover, 16% of the taxa cultivated ex situ, mostly Polystachya, showed significant differences in flowering time between individuals originating from distinct climatic regions, pointing toward the existence of phenological ecotypes. Phenological plasticity, suggested by the lack of synchronized flowering in spatially disjunct populations of Polystachya, could explain the widespread radiation of this genus throughout tropical Africa. Our study highlights the need to take the spatial pattern of flowering time into account when interpreting phylogeographic patterns in central African rainforests.
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Affiliation(s)
- N Texier
- Faculty of Sciences, Evolutionary Biology and Ecology, Université Libre de Bruxelles, CP160/12, 50 Av. F. Roosevelt, 1050, Brussels, Belgium.
- Herbarium et Bibliothèque de Botanique africaine, Université Libre de Bruxelles, CP 265, Boulevard du Triomphe, B-1050, Brussels, Belgium.
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon.
- Africa & Madagascar Department, Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA.
| | - V Deblauwe
- Herbarium et Bibliothèque de Botanique africaine, Université Libre de Bruxelles, CP 265, Boulevard du Triomphe, B-1050, Brussels, Belgium
- Center for Tropical Research, Institute of the Environment and Sustainability, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- International Institute of Tropical Agriculture, Yaoundé, Cameroon
| | - T Stévart
- Herbarium et Bibliothèque de Botanique africaine, Université Libre de Bruxelles, CP 265, Boulevard du Triomphe, B-1050, Brussels, Belgium
- Africa & Madagascar Department, Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA
- Agentschap Plantentuin Meise, Domein van Bouchout, Nieuwelaan 38, BE-1860, Meise, Belgium
| | - B Sonké
- Herbarium et Bibliothèque de Botanique africaine, Université Libre de Bruxelles, CP 265, Boulevard du Triomphe, B-1050, Brussels, Belgium
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
- Africa & Madagascar Department, Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA
| | - M Simo-Droissart
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - L Azandi
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - R Bose
- AMAP, IRD, CIRAD, CNRS, INRA, Univ Montpellier, Montpellier, France
| | - M-N Djuikouo
- Department of Botany and Plant Physiology, University of Buea, Buea, Cameroon
| | - G Kamdem
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - N Kamdem
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - S Mayogo
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - L Zemagho
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
| | - V Droissart
- Herbarium et Bibliothèque de Botanique africaine, Université Libre de Bruxelles, CP 265, Boulevard du Triomphe, B-1050, Brussels, Belgium
- Plant Systematics and Ecology Laboratory, Higher Teachers' Training College, University of Yaoundé I, Yaoundé, Cameroon
- Africa & Madagascar Department, Missouri Botanical Garden, P.O. Box 299, St. Louis, MO, 63166-0299, USA
- AMAP, IRD, CIRAD, CNRS, INRA, Univ Montpellier, Montpellier, France
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Xi J, Oza A, Thomas S, Naughton M, Ademuyiwa F, Weilbaecher KN, Suresh R, Bose R, Cherian MA, Hernandez-Aya L, Frith A, Peterson LL, Krishnamurthy J, Ma CX. Abstract P5-21-30: Retrospective review of palbociclib (Pal) efficacy and benefit from subsequent treatments following Pal progression in patients (pts) with hormone receptor positive (HR+) and HER2 negative (HER2-) metastatic breast cancer (MBC). Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p5-21-30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
The cyclin-dependent kinase (CDK) 4/6 inhibitor Pal is approved for HR+ HER2- MBC. However, the optimal therapy following Pal progression is unknown. Therefore we conducted this retrospective study to review Pal efficacy and summarize the practice pattern and responses to subsequent treatments post Pal progression.
Methods
We performed a chart review of pts with HR+ HER2- MBC who began Pal treatment at Washington University Siteman Cancer Center between Feb 16, 2015 and July 13, 2016 and collected information on pts demographics, diagnosis, and treatment history. Duration of therapy was used to calculate the progression free survival (PFS) for each regimen. Treatment was considered first-line if administered without any prior systemic therapy or at least 1 year from completion of adjuvant hormonal therapy (HT). Treatments received after progression on 1st line therapy or upon relapse during or within 1 year from the completion of adjuvant HT were considered second-line regimens.
Statistical analyses were performed on SAS software, version 9.4. The Kaplan-Meier method was used to generate time-to-event curves, from which median PFS was calculated. A stratified log-rank test was used for all comparisons, and the P value derived from the comparison was reported.
Results
We completed a chart review for 81 pts (78 female and 3 male; 63 Caucasian, 14 African American, and 4 other races) with HR+ HER2- MBC (68 were ER+PR+, 13 were ER+PR-) who received Pal plus letrozole (n=65) or fulvestrant (n=15) or anastrozole (n=1), with a median age of 62.0 years (range 28.1 - 85.6) at the start of Pal.
The median follow up was 20.0 months (mos) (range 10.8 – 27.9). 25 pts were still on Pal treatment. The median PFS on Pal was 19.9 mos in the first-line setting (n=20), compared to 12.1 mos and 4.4 mos in the second-line (n=14) and subsequent lines (n=47), respectively (p=0.0287). Among the 54 pts who progressed on Pal, 38 moved on to the next treatment. 20 pts received chemotherapy and 16 pts received HT or a HT combination. 2 pts received fulvestrant plus Pal upon progression on letrozole plus Pal, and treatment was still ongoing at 4 mos and 7 mos of follow up, respectively. The most common treatments post Pal were single-agent capecitabine (Cape) (n=9) and the combination of exemestane (Exe) and everolimus (Eve) (n=8). The median PFS was 4.7 mos with Cape compared to 8.4 mos with Exe and Eve (p=0.60). The median PFS was 4.7 mos for the 20 pts who received chemo, whereas the median PFS was 4.9 mos with subsequent HT (n=16) (p=0.75).
Conclusion
Pal plus letrozole or fulvestrant is effective for the treatment of HR+ HER2- MBC, with activity observed beyond the 1st and 2nd line treatment settings. The PFS of Pal observed in this single center retrospective study is consistent with that of published data. Single-agent cape or the Exe and Eve combination were common treatment choices following progression on Pal. Although the study is limited by its small sample size, the median PFS of 8.4 mos with Exe and Eve indicates its potential efficacy in the setting of Pal progression. Additional pts and followup data will be presented.
Citation Format: Xi J, Oza A, Thomas S, Naughton M, Ademuyiwa F, Weilbaecher KN, Suresh R, Bose R, Cherian MA, Hernandez-Aya L, Frith A, Peterson LL, Krishnamurthy J, Ma CX. Retrospective review of palbociclib (Pal) efficacy and benefit from subsequent treatments following Pal progression in patients (pts) with hormone receptor positive (HR+) and HER2 negative (HER2-) metastatic breast cancer (MBC) [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P5-21-30.
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Affiliation(s)
- J Xi
- Washington University School of Medicine, St. Louis, MO
| | - A Oza
- Washington University School of Medicine, St. Louis, MO
| | - S Thomas
- Washington University School of Medicine, St. Louis, MO
| | - M Naughton
- Washington University School of Medicine, St. Louis, MO
| | - F Ademuyiwa
- Washington University School of Medicine, St. Louis, MO
| | | | - R Suresh
- Washington University School of Medicine, St. Louis, MO
| | - R Bose
- Washington University School of Medicine, St. Louis, MO
| | - MA Cherian
- Washington University School of Medicine, St. Louis, MO
| | | | - A Frith
- Washington University School of Medicine, St. Louis, MO
| | - LL Peterson
- Washington University School of Medicine, St. Louis, MO
| | | | - CX Ma
- Washington University School of Medicine, St. Louis, MO
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Khasnobish A, Datta S, Bose R, Tibarewala DN, Konar A. Analyzing text recognition from tactually evoked EEG. Cogn Neurodyn 2017; 11:501-513. [PMID: 29147143 DOI: 10.1007/s11571-017-9452-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 08/12/2017] [Accepted: 08/23/2017] [Indexed: 10/18/2022] Open
Abstract
Tactual exploration of objects produce specific patterns in the human brain and hence objects can be recognized by analyzing brain signals during tactile exploration. The present work aims at analyzing EEG signals online for recognition of embossed texts by tactual exploration. EEG signals are acquired from the parietal region over the somatosensory cortex of blindfolded healthy subjects while they tactually explored embossed texts, including symbols, numbers, and alphabets. Classifiers based on the principle of supervised learning are trained on the extracted EEG feature space, comprising three features, namely, adaptive autoregressive parameters, Hurst exponents, and power spectral density, to recognize the respective texts. The pre-trained classifiers are used to classify the EEG data to identify the texts online and the recognized text is displayed on the computer screen for communication. Online classifications of two, four, and six classes of embossed texts are achieved with overall average recognition rates of 76.62, 72.31, and 67.62% respectively and the computational time is less than 2 s in each case. The maximum information transfer rate and utility of the system performance over all experiments are 0.7187 and 2.0529 bits/s respectively. This work presents a study that shows the possibility to classify 3D letters using tactually evoked EEG. In future, it will help the BCI community to design stimuli for better tactile augmentation n also opens new directions of research to facilitate 3D letters for visually impaired persons. Further, 3D maps can be generated for aiding tactual BCI in teleoperation.
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Affiliation(s)
- A Khasnobish
- TCS Innovation Labs, New Town, Kolkata, 700156 India
| | - S Datta
- TCS Innovation Labs, New Town, Kolkata, 700156 India
| | - R Bose
- Electrical Engineering Department, Calcutta Institute of Engineering and Management, 24/1A, Chandi Ghosh Road, Kolkata, 700040 India
| | - D N Tibarewala
- School of Bioscience and Engineering, Jadavpur University, Kolkata, 700032 India
| | - A Konar
- Department of Electronics and Telecommunication Engineering, Jadavpur University, Kolkata, 700032 India
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Ramakrishnan N, Bose R. Analysis of distribution of DNA methylation in kidney-renal-clear-cell-carcinoma specific genes using entropy. Genom Data 2016; 10:109-113. [PMID: 27818943 PMCID: PMC5080556 DOI: 10.1016/j.gdata.2016.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/14/2016] [Accepted: 10/17/2016] [Indexed: 12/20/2022]
Abstract
DNA Methylation is an epigenetic phenomenon in which methyl groups are added to the cytosines, thereby altering the physio-chemical properties of the DNA region and influencing gene expression. Aberrant DNA methylation in a set of genes or across the genome results in many epigenetic diseases including cancer. In this paper, we use entropy to analyze the extent and distribution of DNA methylation in Tumor Suppressor Genes (TSG's) and Oncogenes related to a specific type of cancer (viz.) KIRC (Kidney-renal-clear-cell-carcinoma). We apply various mathematical transformations to enhance the different regions in DNA methylation distribution and compare the resultant entropies for healthy and tumor samples. We also obtain the sensitivity and specificity of classification for the different mathematical transformations. Our findings show that it is not just the measure of methylation, but the distribution of the methylation levels in the genes that are significant in cancer.
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Affiliation(s)
- Nithya Ramakrishnan
- Department of Electrical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110015, India
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29
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Gullo G, Bose R, Walsh N, Maltese M, Fennelly D, Walshe J, Ballot J, Crown J. Delayed initiation of HER2-targeted therapy (HER2Tx) is associated with a higher risk of relapse for early stage (ES) HER2-positive (HER2+) breast cancer (BrCa). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw364.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Tandon A, Bose R, Yoon AD, Schussler JM. Isolated Congenitally Corrected Transposition of the Great Arteries with Dextroversion Discovered Incidentally in a Patient with Cocaine-Induced Acute Myocardial Infarction. Proc (Bayl Univ Med Cent) 2016; 29:171-3. [DOI: 10.1080/08998280.2016.11929404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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31
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Zoppoli G, Gundem G, Pruneri G, Larsimon D, Fornili M, Fumagalli D, Brown D, Salgado R, Van Brussel T, Lambrechts D, Bose R, Metzger O, Galant C, Bertucci F, Piccart M, Biganzoli E, Viale G, Campbell P, Sotiriou C, Desmedt C. Genomic hallmarks of invasive lobular breast carcinoma and their clinical relevance. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv336.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Gullo G, Kennedy J, Breathnach O, McCaffrey J, Keane M, Martin M, Gupta R, Leonard G, Calvert P, Donnellan P, Walshe J, Mc Dermott E, Cairney S, Bose R, Scott K, Hernando A, Parker I, Tryfonopoulos D, Moulton B, Crown J. 1964 Pilot study of bevacizumab (Bev) in combination with docetaxel (T) and cyclophosphamide (C) as adjuvant treatment (AdjRx) for patients (pts) with early stage (ES) HER-2 normal breast cancer (BrCa) ICORG 08-10. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30912-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Spulber S, Conti M, DuPont C, Raciti M, Bose R, Onishchenko N, Ceccatelli S. Alterations in circadian entrainment precede the onset of depression-like behavior that does not respond to fluoxetine. Transl Psychiatry 2015; 5:e603. [PMID: 26171984 PMCID: PMC5068723 DOI: 10.1038/tp.2015.94] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 06/03/2015] [Accepted: 06/04/2015] [Indexed: 12/17/2022] Open
Abstract
Growing evidence links adverse prenatal conditions to mood disorders. We investigated the long-term behavioral alterations induced by prenatal exposure to excess glucocorticoids (dexamethasone--DEX). At 12 months, but not earlier, DEX-exposed mice displayed depression-like behavior and impaired hippocampal neurogenesis, not reversible by the antidepressant fluoxetine (FLX). Concomitantly, we observed arrhythmic glucocorticoid secretion and absent circadian oscillations in hippocampal clock gene expression. Analysis of spontaneous activity showed progressive alterations in circadian entrainment preceding depression. Circadian oscillations in clock gene expression (measured by means of quantitative PCR) were also attenuated in skin fibroblasts before the appearance of depression. Interestingly, circadian entrainment is not altered in a model of depression (induced by methylmercury prenatal exposure) that responds to FLX. Altogether, our results suggest that alterations in circadian entrainment of spontaneous activity, and possibly clock gene expression in fibroblasts, may predict the onset of depression and the response to FLX in patients.
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Affiliation(s)
- S Spulber
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden,Department of Neuroscience, Karolinska Institutet, Retzius väg 8, 17177 Stockholm, Sweden. E-mail: or
| | - M Conti
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - C DuPont
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - M Raciti
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - R Bose
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - N Onishchenko
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - S Ceccatelli
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden,Department of Neuroscience, Karolinska Institutet, Retzius väg 8, 17177 Stockholm, Sweden. E-mail: or
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Bose R, Spulber S, Kilian P, Heldring N, Lönnerberg P, Johnsson A, Conti M, Hermanson O, Ceccatelli S. Tet3 mediates stable glucocorticoid-induced alterations in DNA methylation and Dnmt3a/Dkk1 expression in neural progenitors. Cell Death Dis 2015; 6:e1793. [PMID: 26086966 PMCID: PMC4669838 DOI: 10.1038/cddis.2015.159] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/28/2015] [Accepted: 05/13/2015] [Indexed: 12/15/2022]
Abstract
Developmental exposure to excess glucocorticoids (GCs) has harmful neurodevelopmental effects, which include persistent alterations in the differentiation potential of embryonic neural stem cells (NSCs). The mechanisms, however, are largely unknown. Here, we investigated the effects of dexamethasone (Dex, a synthetic GC analog) by MeDIP-like genome-wide analysis of differentially methylated DNA regions (DMRs) in NSCs isolated from embryonic rat cortices. We found that Dex-induced genome-wide DNA hypomethylation in the NSCs in vitro. Similarly, in utero exposure to Dex resulted in global DNA hypomethylation in the cerebral cortex of 3-day-old mouse pups. Dex-exposed NSCs displayed stable changes in the expression of the DNA methyltransferase Dnmt3a, and Dkk1, an essential factor for neuronal differentiation. These alterations were dependent on Tet3 upregulation. In conclusion, we propose that GCs elicit strong and persistent effects on DNA methylation in NSCs with Tet3 playing an essential role in the regulation of Dnmt3a and Dkk1. Noteworthy is the occurrence of similar changes in Dnmt3a and Dkk1 gene expression after exposure to excess GC in vivo.
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Affiliation(s)
- R Bose
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - S Spulber
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - P Kilian
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - N Heldring
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - P Lönnerberg
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - A Johnsson
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - M Conti
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - O Hermanson
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - S Ceccatelli
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Lath C, Sen S, Mondal M, Maiti D, Singh R, Bose R. Atypical presentation of Goldenher syndrome- a rare scenario. J Coll Med Sci-Nepal 2014. [DOI: 10.3126/jcmsn.v9i4.10239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In 1952 Goldenher described a case with triad of pre auricular tags, mandibular hypoplasia and ocular (epibulbar) dermoid and described the case as Goldenger Syndrome. Exact etiology of this disease is not known. Here we present a case of Goldenher syndrome in a 5 days old newborn who presented with all the classical features except ocular involvement. Gorlin et.al named this syndrome as oculoauriculovertebral dysplasia due to presence of additional vertebral anomalies .2 Exact etiology of this disease is not known. Most of the cases are sporadic, though autosomal recessive, autosomal dominant and multifactorial inheritance has also been suggested.2.Chromosomal analysis shows no abnormalities.3 In this report we presented a case of Goldenger Syndrome in a 5 days old newborn who presented with all the classical features except occular involvement. Journal of College of Medical Sciences-Nepal, 2013, Vol-9, No-4, 59-62 DOI: http://dx.doi.org/10.3126/jcmsn.v9i4.10239
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Bose R, Nandagopal K. Genetic and biochemical consequences of adenosine deaminase deficiency in humans. Indian J Biochem Biophys 2013; 50:345-356. [PMID: 24772956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Adenosine deaminase deficiency accounts for approximately 15-20% of severe combined immunodeficiency in humans. The gene for adenosine deaminase is located on chromosome 20q12-q13.11 and codes for an aminohydrolase that catalyzes the deamination of adenosine and deoxyadenosine to inosine and deoxyinosine, respectively. Absence of the enzyme causes a build-up of the substrates in addition to excess deoxyadenosine triphosphate, thereby compromising the regenerative capacity of the immune system. Due to underlying allelic heterogeneity, the disorder manifests as a spectrum, ranging from neonatal onset severe combined immunodeficiency to apparently normal partial adenosine deaminase deficiency. Tandem mass spectrometry coupled with high efficiency separation systems enables postnatal diagnosis of the disorder, while prenatal diagnosis relies on assaying enzyme activity in cultured amniotic fibroblasts or chorionic villi sampling. Screening of adenosine deaminase deficiency for relatives-at-risk may reduce costs of treatment and ensure timely medical intervention as applicable. This article reviews the genetic, biochemical and clinical aspects of adenosine deaminase deficiency.
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Abstract
Amongst environmental chemical contaminants, methylmercury (MeHg) remains a major concern because of its detrimental effects on developing organisms, which appear to be particularly susceptible to its toxicity. Here, we investigated the effects of low MeHg levels on the development of the nervous system using both in vitro and in vivo experimental models. In neural stem cells (NSCs), MeHg decreased proliferation and neuronal differentiation and induced cellular senescence associated with impairment in mitochondrial function and a concomitant decrease in global DNA methylation. Interestingly, the effects were heritable and could be observed in daughter NSCs never directly exposed to MeHg. By chronically exposing pregnant/lactating mice to MeHg, we found persistent behavioural changes in the male offspring, which exhibited depression-like behaviour that could be reversed by chronic treatment with the antidepressant fluoxetine. The behavioural alterations were associated with a decreased number of proliferating cells and lower expression of brain-derived neurotrophic factor (Bdnf) mRNA in the hippocampal dentate gyrus. MeHg exposure also induced long-lasting DNA hypermethylation, increased histone H3-K27 tri-methylation and decreased H3 acetylation at the Bdnf promoter IV, indicating that epigenetic mechanisms play a critical role in mediating the long-lasting effects of perinatal exposure to MeHg. Fluoxetine treatment restored the Bdnf mRNA expression levels, as well as the number of proliferating cells in the granule cell layer of the dentate gyrus, which further supports the hypothesis that links depression to impaired neurogenesis. Altogether, our findings have shown that low concentrations of MeHg induce long-lasting effects in NSCs that can potentially predispose individuals to depression, which we have reported earlier to occur in experimental animals exposed to MeHg during prenatal and early postnatal development.
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Affiliation(s)
- S Ceccatelli
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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Bose R, Kavuri SM, Searleman AC, Shen W, Shen D, Koboldt DC, Monsey J, Li S, Ding L, Mardis ER, Ellis MJ. Abstract S5-6: Activating HER2 mutations in HER2 gene amplification negative breast cancers. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-s5-6] [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: 11/16/2022]
Abstract
Abstract
Background: Breast cancer genome sequencing projects, performed by the genome sequencing centers in the U.S., Canada, and the U.K., are elucidating the somatic mutations and other genomic alterations that occur in human breast cancer. These studies recently identified somatic HER2 mutations in breast cancers lacking HER2 gene amplification.
Results: Compilation of data from seven sequencing studies documented 22 patients with somatic HER2 mutations. These mutations clustered in three regions. The first cluster was at amino acid (aa) 309–310 (exon 8), located in the extracellular domain. These aa residues form part of the HER2 dimerization interface. The second cluster was at aa 755–781, located in the kinase domain (exons 19–20). This was the most common location for HER2 mutations, with 17 out of 22 patients having somatic mutations here. The third region was at aa 835–896, also in the kinase domain (exons 21–22). Using multiple experimental approaches (cell line experiments, in vitro kinase assays, protein structure modeling, and xenograft experiments), we tested seven of these HER2 mutations and showed that 4 of them are activating mutations that are sensitive to lapatinib and trastuzumab. Another 2 mutations were found to be lapatinib resistant and we determined their sensitivity to neratinib, canertinib, and gefitinib.
Conclusions: These findings biologically validate somatic HER2 mutations as good targets for breast cancer treatment, but the appropriate choice of targeted drug is dependent on the precise mutation present. This study is among the first to functionally characterize mutations identified by breast cancer genome sequencing. A prospective, multi-institutional clinical trial has been launched to screen for HER2 mutation positive patients and determine the clinical outcome of treatment with HER2 targeted drugs.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr S5-6.
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Affiliation(s)
- R Bose
- Washington University School of Medicine, St. Louis, MO
| | - SM Kavuri
- Washington University School of Medicine, St. Louis, MO
| | - AC Searleman
- Washington University School of Medicine, St. Louis, MO
| | - W Shen
- Washington University School of Medicine, St. Louis, MO
| | - D Shen
- Washington University School of Medicine, St. Louis, MO
| | - DC Koboldt
- Washington University School of Medicine, St. Louis, MO
| | - J Monsey
- Washington University School of Medicine, St. Louis, MO
| | - S Li
- Washington University School of Medicine, St. Louis, MO
| | - L Ding
- Washington University School of Medicine, St. Louis, MO
| | - ER Mardis
- Washington University School of Medicine, St. Louis, MO
| | - MJ Ellis
- Washington University School of Medicine, St. Louis, MO
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Bose R, De A, Sen G, Mukherjee AD. Comparative study of the physico-chemical parameters of the coastal waters in rivers Matla and Saptamukhi: Impacts of coastal water coastal pollution. J WATER CHEM TECHNO+ 2012. [DOI: 10.3103/s1063455x12050062] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bose R, Schussler JM. Use of Angio-Seal closure device when the arteriotomy is above or below the common femoral artery. Clin Cardiol 2011; 34:700-2. [PMID: 22057835 DOI: 10.1002/clc.20961] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 08/09/2011] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The majority of vascular complications during diagnostic coronary angiography occur while accessing the femoral artery. Angio-Seal vascular closure devices are indicated for closure of arteriotomies of the femoral artery, but not when the puncture site is above or below the femoral artery. HYPOTHESIS Under certain circumstances, use of the Angio-Seal closure device above or below the common femoral artery may be safe and effective. METHODS Consecutive patients at a single high-volume medical center having documented high or low arteriotomies were closed using an Angio-Seal closure device. Patients were chosen when they received a single arterial puncture, the arteriotomy was away from branch vessels, and the diameter of the artery at the site of sheath entry was of large enough caliber to suggest placement would be successful. Patients were then followed longitudinally for complications. RESULTS Sixty-two patients had non-femoral artery sheath placement. Twenty-two patients had "high" puncture sites, and 40 patients had "low" puncture sites. All were successfully closed using the Angio-Seal vascular closure device and had no complications. CONCLUSIONS Although not approved for placement in areas above or below the femoral artery, off-label use of the Angio-Seal arteriotomy closure may be safely performed when patient characteristics are favorable.
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Affiliation(s)
- Rahul Bose
- Division of Cardiology, Baylor University Medical Center/Jack and Jane Hamilton Heart and Vascular Hospital, Dallas, Texas, USA
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Falcone AM, Bose R, Stoler RC, Kim M, Laible E, Kang L, Waters K, Dunkerley J, Choi JW. The AmBulatory Closure Device Percutaneous Intervention (ABCD-PCI) study: a single-center experience. Proc (Bayl Univ Med Cent) 2011; 24:192-4. [PMID: 21738289 DOI: 10.1080/08998280.2011.11928713] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The AmBulatory Closure Device Percutaneous Intervention (ABCD-PCI) study is a multicenter randomized prospective controlled trial evaluating the safety of and patient satisfaction with same-day discharge following ambulatory percutaneous intervention with a closure device. This article reviews the findings from a single center, Baylor Jack and Jane Hamilton Heart and Vascular Hospital, from October 2008 through April 2010, with 23 patients in the same-day discharge group and 21 patients in the next-day discharge group. There were no differences between the groups in demographic or procedure characteristics. Outcomes were measured by a questionnaire and 7-day and 30-day follow-up phone calls. Results showed that same-day discharge after percutaneous intervention with a closure device is as safe as next-day discharge. However, there was a trend for a higher comfort level among patients in the next-day discharge group.
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Affiliation(s)
- Adam M Falcone
- Department of Internal Medicine (Falcone) and Division of Cardiology (Bose, Choi, Stoler, Laible, Kang, Waters, Dunkerley), Baylor University Medical Center at Dallas; and Mount Sinai Medical Center, New York, New York (Kim)
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Bose R, Sridharan D, Solomon GS, Waks E. Observation of strong coupling through transmission modification of a cavity-coupled photonic crystal waveguide. Opt Express 2011; 19:5398-5409. [PMID: 21445179 DOI: 10.1364/oe.19.005398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We investigate strong coupling between a single quantum dot (QD) and photonic crystal cavity through transmission modification of an evanescently coupled waveguide. Strong coupling is observed through modification of both the cavity scattering spectrum and waveguide transmission. We achieve an overall Q of 5800 and an exciton-photon coupling strength of 21 GHz for this integrated cavity-waveguide structure. The transmission contrast for the bare cavity mode is measured to be 24%. These results represent important progress towards integrated cavity quantum electrodynamics using a planar photonic architecture.
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Affiliation(s)
- R Bose
- Department of Electrical Engineering and Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
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Bose R, Choi JW. Successful percutaneous retrieval of methyl methacrylate orthopedic cement embolism from the pulmonary artery. Catheter Cardiovasc Interv 2010; 76:198-201. [DOI: 10.1002/ccd.22496] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Zimmerman H, Bose R, Smith R, Copeland J. 17: The Treatment of Postpartum Cardiomyopathy with the Use of Mechanical Assist Devices and Cardiac Transplantation. J Heart Lung Transplant 2010. [DOI: 10.1016/j.healun.2009.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Wilson MS, Deans GT, Williams JP, Bose R, Brough WA. A method of objective measurement of rehabilitation after inguinal hernia repair. MINIM INVASIV THER 2009. [DOI: 10.3109/13645709509152769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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van Sark WGJHM, Barnham KWJ, Slooff LH, Chatten AJ, Büchtemann A, Meyer A, McCormack SJ, Koole R, Farrell DJ, Bose R, Bende EE, Burgers AR, Budel T, Quilitz J, Kennedy M, Meyer T, Donegá CDM, Meijerink A, Vanmaekelbergh D. Luminescent Solar Concentrators--a review of recent results. Opt Express 2008; 16:21773-92. [PMID: 19104611 DOI: 10.1364/oe.16.021773] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Luminescent solar concentrators (LSCs) generally consist of transparent polymer sheets doped with luminescent species. Incident sunlight is absorbed by the luminescent species and emitted with high quantum efficiency, such that emitted light is trapped in the sheet and travels to the edges where it can be collected by solar cells. LSCs offer potentially lower cost per Wp. This paper reviews results mainly obtained within the framework of the Full-spectrum project. Two modeling approaches are presented, i.e., a thermodynamic and a ray-trace one, as well as experimental results, with a focus on LSC stability.
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Affiliation(s)
- Wilfried G J H M van Sark
- Science, Technology and Society, Copernicus Institute of Sustainable Development and Innovation, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht, the Netherlands.
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Affiliation(s)
- J.S.C. McKee
- a Cyclotron Laboratory, Department of Physics , University of Manitoba , Winnipeg, Manitoba, R3T 2N2
| | - C. Lapointe
- a Cyclotron Laboratory, Department of Physics , University of Manitoba , Winnipeg, Manitoba, R3T 2N2
| | - J. Birchall
- a Cyclotron Laboratory, Department of Physics , University of Manitoba , Winnipeg, Manitoba, R3T 2N2
| | - C. Pinsky
- b Dept. of Pharmacology and Therapeutics , University of Manitoba , Winnipeg, Manitoba, R3E 0W3
| | - R. Bose
- b Dept. of Pharmacology and Therapeutics , University of Manitoba , Winnipeg, Manitoba, R3E 0W3
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Bose R, Gupta G, Grayburn PA, Laible EA, Kang MJ, Choi JW. Safety of drug-eluting stents in the coronary artery in ST-elevation myocardial infarction at a single high-volume medical center. Am J Cardiol 2007; 100:949-52. [PMID: 17826375 DOI: 10.1016/j.amjcard.2007.04.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2007] [Revised: 04/10/2007] [Accepted: 04/10/2007] [Indexed: 11/26/2022]
Abstract
Several trials have shown the effectiveness of drug-eluting stents (DES) in reducing restenosis. Acute ST-elevation myocardial infarction (STEMI) has been an exclusion criterion in most trials evaluating the safety and efficacy of DES. There is recent randomized trial data evaluating the use and safety of DES for acute myocardial infarction. However, there is a need for "real world" data on the efficacy and safety of DES in STEMI. A single-center retrospective analysis was performed on 188 consecutive patients with STEMI treated with primary or rescue coronary angioplasty between March 2004 and July 2005. The study consisted of 3 groups: 115 patients treated with paclitaxel-eluting stents, 55 with sirolimus-eluting stents, and 18 with bare metal stents. Outcomes were assessed from 12 to 28 months (mean 20, median 19) for major adverse cardiac events (MACEs) including myocardial infarction, in-stent thrombosis, clinical restenosis, and death. There were 4 in-stent thromboses in the paclitaxel group (3.4%) and 2 in-stent thromboses in the sirolimus group (3.6%). The thromboses ranged from acute (within 24 hours) to as late as 8 months. Clinical restenosis occurred in 4 patients (3.4%) in the paclitaxel group and in 2 patients (3.6%) in the sirolimus. None of the 18 patients with bare metal stents had thrombosis or clinical restenosis. There were 7 total deaths, all related to complications from the index STEMI: 1 in the bare metal group, 1 in the sirolimus group, and 5 in the paclitaxel group. The postdischarge MACE rate was 7% with no deaths. In conclusion, the use of DES in acute STEMI is associated with a low postdischarge MACE rate and a 3.5% in-stent thrombosis rate, which is similar to reported rates in earlier randomized trials.
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Affiliation(s)
- Rahul Bose
- Baylor University Medical Center, Dallas, Texas, USA
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Slepian M, Smith R, Nolan P, McClellan D, Tsau P, Bose R, Sethi G, Copeland J. 85: Use of the total artificial heart for salvage of patients with refractory cardiogenic shock complicating acute myocardial infarction. J Heart Lung Transplant 2007. [DOI: 10.1016/j.healun.2006.11.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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