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Yeboa D, Yu J, Liao K, Huse J, Penas-Prado M, Kann B, Sulman E, Grosshans D, Contessa J. OC-0165 Patterns of treatment and outcomes for 1p19q co-deleted gliomas. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30585-7] [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: 11/16/2022]
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McTyre E, Ayala-Peacock D, Contessa J, Corso C, Chiang V, Chung C, Fiveash J, Ahluwalia M, Kotecha R, Chao S, Attia A, Henson A, Hepel J, Braunstein S, Chan M. Multi-institutional competing risks analysis of distant brain failure and salvage patterns after upfront radiosurgery without whole brain radiotherapy for brain metastasis. Ann Oncol 2019; 29:497-503. [PMID: 29161348 DOI: 10.1093/annonc/mdx740] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background In this study, we use a competing risks analysis to assess factors predictive of early-salvage whole brain radiotherapy (WBRT) and early death after upfront stereotactic radiosurgery (SRS) alone for brain metastases in an attempt to identify populations that benefit less from upfront SRS. Patients and methods Patients from eight academic centers were treated with SRS for brain metastasis. Competing risks analysis was carried out for distant brain failure (DBF) versus death prior to DBF as well as for salvage SRS versus salvage WBRT versus death prior to salvage. Linear regression was used to determine predictors of the number of brain metastases at initial DBF (nDBF). Results A total of 2657 patients were treated with upfront SRS alone. Multivariate analysis (MVA) identified an increased hazard of DBF associated with increasing number of brain metastases (P < 0.001), lowest SRS dose received (P < 0.001), and melanoma histology (P < 0.001), while there was a decreased hazard of DBF associated with increasing age (P < 0.001), KPS < 70 (P < 0.001), and progressive systemic disease (P = 0.004). MVA for first salvage SRS versus WBRT versus death prior to salvage revealed an increased hazard of first salvage WBRT seen with increasing number of brain metastases (P < 0.001) and a decreased hazard with widespread systemic disease (P = 0.002) and increasing age (P < 0.001). Variables associated with nDBF included age (P = 0.02), systemic disease status (P = 0.03), melanoma histology (P = 0.05), and initial number of brain metastases (P < 0.001). Conclusions Patients with a higher initial number of brain metastases were more likely to experience DBF, have a higher nDBF, and receive early-salvage WBRT, while patients who were older, had lower KPS, or had more systemic disease were more likely to experience death prior to DBF or salvage WBRT.
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Affiliation(s)
- E McTyre
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, USA.
| | - D Ayala-Peacock
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, USA; Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, USA
| | - J Contessa
- Department of Therapeutic Radiology/Southeast Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, USA
| | - C Corso
- Department of Therapeutic Radiology/Southeast Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, USA
| | - V Chiang
- Department of Therapeutic Radiology/Southeast Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, USA; Department of Neurosurgery, Yale University School of Medicine, New Haven, USA
| | - C Chung
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, USA; Department of Radiation Oncology, Princess Margaret Cancer Center, Toronto, Canada, USA
| | - J Fiveash
- Department of Radiation Oncology, University of Alabama-Birmingham, Birmingham, USA
| | - M Ahluwalia
- Brain Tumor and Neuro-Oncology Center, Neurological Institute, Cleveland Clinic Foundation, Cleveland, USA
| | - R Kotecha
- Brain Tumor and Neuro-Oncology Center, Neurological Institute, Cleveland Clinic Foundation, Cleveland, USA
| | - S Chao
- Brain Tumor and Neuro-Oncology Center, Neurological Institute, Cleveland Clinic Foundation, Cleveland, USA
| | - A Attia
- Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, USA
| | - A Henson
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, USA
| | - J Hepel
- Department of Radiation Oncology, Brown University Alpert Medical School, Providence, USA
| | - S Braunstein
- Department of Radiation Oncology, University of California San Francisco, San Francisco, USA
| | - M Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, USA
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Bahar N, Roberts K, Stabile F, Mongillo N, Decker RD, Wilson LD, Husain Z, Contessa J, Williams BB, Flood AB, Swartz HM, Carlson DJ. SU-C-BRD-05: Non-Invasive in Vivo Biodosimetry in Radiotherapy Patients Using Electron Paramagnetic Resonance (EPR) Spectroscopy. Med Phys 2015. [DOI: 10.1118/1.4923800] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Dosoretz A, Aneja S, Contessa J, Bindra R, Chiang V, Yu J. Long-term Survivors After Treatment of Intracranial Metastases With Radiosurgery. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.721] [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: 10/26/2022]
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Rewari A, Wu H, Contessa J, Haffty B, Decker R. Prognostic Value of p16 Expression in Laryngeal Cancer Patients Treated with Radiation. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.181] [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]
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Auer KL, Contessa J, Brenz-Verca S, Pirola L, Rusconi S, Cooper G, Abo A, Wymann MP, Davis RJ, Birrer M, Dent P. The Ras/Rac1/Cdc42/SEK/JNK/c-Jun cascade is a key pathway by which agonists stimulate DNA synthesis in primary cultures of rat hepatocytes. Mol Biol Cell 1998; 9:561-73. [PMID: 9487126 PMCID: PMC25285 DOI: 10.1091/mbc.9.3.561] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The ability of signaling via the JNK (c-Jun NH2-terminal kinase)/stress-activated protein kinase cascade to stimulate or inhibit DNA synthesis in primary cultures of adult rat hepatocytes was examined. Treatment of hepatocytes with media containing hyperosmotic glucose (75 mM final), tumor necrosis factor alpha (TNFalpha, 1 ng/ml final), and hepatocyte growth factor (HGF, 1 ng/ml final) caused activation of JNK1. Glucose, TNFalpha, or HGF treatments increased phosphorylation of c-Jun at serine 63 in the transactivation domain and stimulated hepatocyte DNA synthesis. Infection of hepatocytes with poly-L-lysine-coated adenoviruses coupled to constructs to express either dominant negatives Ras N17, Rac1 (N17), Cdc42 (N17), SEK1-, or JNK1- blunted the abilities of glucose, TNFalpha, or HGF to increase JNK1 activity, to increase phosphorylation of c-Jun at serine 63, and to stimulate DNA synthesis. Furthermore, infection of hepatocytes by a recombinant adenovirus expressing a dominant-negative c-Jun mutant (TAM67) also blunted the abilities of glucose, TNFalpha, and HGF to stimulate DNA synthesis. These data demonstrate that multiple agonists stimulate DNA synthesis in primary cultures of hepatocytes via a Ras/Rac1/Cdc42/SEK/JNK/c-Jun pathway. Glucose and HGF treatments reduced glycogen synthase kinase 3 (GSK3) activity and increased c-Jun DNA binding. Co-infection of hepatocytes with recombinant adenoviruses to express dominant- negative forms of PI3 kinase (p110alpha/p110gamma) increased basal GSK3 activity, blocked the abilities of glucose and HGF treatments to inhibit GSK3 activity, and reduced basal c-Jun DNA binding. However, expression of dominant-negative PI3 kinase (p110alpha/p110gamma) neither significantly blunted the abilities of glucose and HGF treatments to increase c-Jun DNA binding, nor inhibited the ability of these agonists to stimulate DNA synthesis. These data suggest that signaling by the JNK/stress-activated protein kinase cascade, rather than by the PI3 kinase cascade, plays the pivotal role in the ability of agonists to stimulate DNA synthesis in primary cultures of rat hepatocytes.
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Affiliation(s)
- K L Auer
- Department of Radiation Oncology, Medical College of Virginia, Richmond, Virginia 23298-0058, USA
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Schmidt-Ullrich R, Mikkelsen R, Valerie K, Todd D, Kavanagh B, Contessa J, Rorrer K, Chen P. 134 Molecular mechanisms of radiation-induced cell proliferation in human carcinoma cells. Int J Radiat Oncol Biol Phys 1996. [DOI: 10.1016/s0360-3016(97)85475-2] [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: 11/25/2022]
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