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Pavic T, LJubicic N, Marout J, Milosevic M, Budimir I, Biscanin A, Duvnjak M. PP063-SUN: Hormonal Dysfunction in Patients with Biliary Obstruction. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50105-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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77
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Chaudary N, Fyles T, Townsley C, Han K, Hill R, Kim S, Levin W, MacKay H, Manchul L, Yeung I, Oza A, Milosevic M. A Phase 1/2 Study of the Angiogenesis Inhibitor Sorafenib in Cervical Cancer Patients Treated With Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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78
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Huang R, Vesprini D, Bayley A, Bristow R, Chung P, Gospodarowicz M, Menard C, Milosevic M, Warde P, Catton C. Long-Term Outcome of Dose Escalated Hypofractionated Intensity Modulated Radiation Therapy (IMRT) for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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79
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Yokoi K, Kojic M, Milosevic M, Tanei T, Ferrari M, Ziemys A. Capillary-wall collagen as a biophysical marker of nanotherapeutic permeability into the tumor microenvironment. Cancer Res 2014; 74:4239-46. [PMID: 24853545 PMCID: PMC4134692 DOI: 10.1158/0008-5472.can-13-3494] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The capillary wall is the chief barrier to tissue entry of therapeutic nanoparticles, thereby dictating their efficacy. Collagen fibers are an important component of capillary walls, affecting leakiness in healthy or tumor vasculature. Using a computational model along with in vivo systems, we compared how collagen structure affects the diffusion flux of a 1-nm chemotherapeutic molecule [doxorubicin (DOX)] and an 80-nm chemotherapy-loaded pegylated liposome (DOX-PLD) in tumor vasculature. We found a direct correlation between the collagen content around a tumor vessel to the permeability of that vessel permeability to DOX-PLD, indicating that collagen content may offer a biophysical marker of extravasation potential of liposomal drug formulations. Our results also suggested that while pharmacokinetics determined the delivery of DOX and DOX-PLD to the same tumor phenotype, collagen content determined the extravasation of DOX-PLD to different tumor phenotypes. Transport physics may provide a deeper view into how nanotherapeutics cross biological barriers, possibly helping explain the balance between biological and physical aspects of drug delivery.
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80
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Milosevic M, Migliore M, Lees B, Treasure T. P-186 * PULMICC INTERNATIONAL: A RANDOMIZED CONTROLLED TRIAL OF PULMONARY METASTASECTOMY IN COLORECTAL CANCER: WORK IN PROGRESS. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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81
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Kojic M, Milosevic M, Kojic N, Kim K, Ferrari M, Ziemys A. A multiscale MD-FE model of diffusion in composite media with internal surface interaction based on numerical homogenization procedure. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 2014; 269:123-138. [PMID: 24578582 PMCID: PMC3933172 DOI: 10.1016/j.cma.2013.11.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Mass transport by diffusion within composite materials may depend not only on internal microstructural geometry, but also on the chemical interactions between the transported substance and the material of the microstructure. Retrospectively, there is a gap in methods and theory to connect material microstructure properties with macroscale continuum diffusion characteristics. Here we present a new hierarchical multiscale model for diffusion within composite materials that couples material microstructural geometry and interactions between diffusing particles and the material matrix. This model, which bridges molecular dynamics (MD) and the finite element (FE) method, is employed to construct a continuum diffusion model based on a novel numerical homogenization procedure. The procedure is general and robust for evaluating constitutive material parameters of the continuum model. These parameters include the traditional bulk diffusion coefficients and, additionally, the distances from the solid surface accounting for surface interaction effects. We implemented our models to glucose diffusion through the following two geometrical/material configurations: tightly packed silica nanospheres, and a complex fibrous structure surrounding nanospheres. Then, rhodamine 6G diffusion analysis through an aga-rose gel network was performed, followed by a model validation using our experimental results. The microstructural model, numerical homogenization and continuum model offer a new platform for modeling and predicting mass diffusion through complex biological environment and within composite materials that are used in a wide range of applications, like drug delivery and nanoporous catalysts.
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82
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Rosewall T, Wheat J, Currie G, Xie J, Moseley J, Bayley A, Catton C, Chung P, Kong V, Milosevic M. PD-0553: How many fractions are necessary for an accurate accumulation of bladder wall dose? Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30659-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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83
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Bristow R, Lalonde E, Milosevic M, Sykes J, Van der Kwast T, Fraser M, Fotouhi-Ghiam A, Boutros P. OC-0139: Complementarity of genomic instability & hypoxia indices for predicting prostate cancer recurrence. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30244-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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84
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Matejic S, Miletic M, Milosevic M, Jaksic V, Filipovic T, Saranovic M, Deletic N. DNA identification of war and mass catastrophies victims. PRAXIS MEDICA 2014. [DOI: 10.5937/pramed1401019m] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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85
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Berlin A, Lalonde E, Zafarana G, Sykes J, Lam W, Meng A, Milosevic M, Van der Kwast T, Boutros P, Bristow R. PD-0300: NBN gain is predictive for adverse outcome following image-guided radiotherapy for localized prostate cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30405-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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86
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Jaksic V, Matejic S, Atanasijevic T, Milosevic M. Comparative analysis of suicidal poisoning autopsied at the Institute of forensic medicine in Belgrade. PRAXIS MEDICA 2014. [DOI: 10.5937/pramed1403019j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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87
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Boutros P, Lalonde E, Ishkanian A, Sykes J, Moon N, Zafarana G, Thoms J, Have L, Malloff C, Ramnarine V, Meng A, Mak D, Squire J, Jurisica I, Pintilie M, Dal Pra A, Lam W, Milosevic M, Bristow R. MC13-0009 A prognostic CNA signature sub-stratifies intermediate-risk prostate cancer. Eur J Cancer 2013. [DOI: 10.1016/s0959-8049(13)70127-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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88
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Leung E, Pintilie M, Yap M, Cuartero J, MacKay H, Clarke B, Wouters B, Hill R, Fyles A, Milosevic M. Neutrophils Modulate Vascular Function in Locally-Advanced Cervical Cancer and Impair Response to Radiation Therapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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89
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Nielsen M, Bissonnette J, Milosevic M. SU-E-P-02: Canadian Technical Quality Control Guidelines - National Document Review. Med Phys 2013. [DOI: 10.1118/1.4814076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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90
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Van Dyk J, Bentzen S, Milosevic M, Followill D. TU-C-WAB-01: Accuracy Requirements and Uncertainty Considerations in Radiation Therapy. Med Phys 2013. [DOI: 10.1118/1.4815377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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91
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Chan K, Di Tomasso A, Jezioranski J, Fyles A, Milosevic M. MR-Guided Interstitial Brachytherapy Using Customized Vaginal Applicator: An Innovative Yet Cautious Step to Personalized Medicine. J Med Imaging Radiat Sci 2013. [DOI: 10.1016/j.jmir.2012.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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92
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Lam C, Muraj Z, Man K, Milosevic M. EP-1306: Near misses reflect different failure modes than actual incidents in the field of radiation therapy. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33612-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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93
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Leung E, Chaudary N, Kalliomaki T, Mujcic H, Moriyama E, Wouters B, Wilson B, Hill R, Milosevic M. PD-0465: The effects of glycolysis targeting on the radiation response of hypoxic cervix xenograft tumours. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)32771-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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94
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Kong V, Wenz J, Craig T, Milosevic M. Image-Guided Adaptive Radiotherapy – Delivering Personalized Radiation Medicine to Improve Treatment Quality and Patients’ Outcome. J Med Imaging Radiat Sci 2013. [DOI: 10.1016/j.jmir.2012.12.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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95
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Han K, Leung E, Cho C, Knox J, Jewett M, Xie J, Breen S, Milosevic M. OC-0049: Phase I/II study of palliative radiation and sorafenib for metastatic enal cell carcinoma and bone metastases. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)32355-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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96
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Oh S, Moseley J, Jezioranski J, Xie J, Brock K, Cuartero J, Yap M, Fyles A, Milosevic M, Cho Y. Adaptive MRI Guided Brachytherapy of Cervix Cancer: Impact of Reference Image Selection on Dose Accumulation. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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97
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Yap M, Cuartero J, Allo G, Pintilie M, Opfermann K, Fyles A, Murphy J, Kamel-Reid S, Clarke B, Milosevic M. The Prognostic Significance of Human Papilloma Virus and P16 in Patients With Vulvar Squamous Cell Carcinoma Treated With Radiation Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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98
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Van der Kwast T, Al Daoud N, Collette L, Sykes J, Thoms J, Milosevic M, Bristow R, Van Tienhoven G, Warde P, Mirimanoff RO, Bolla M. Corrigendum to: “Biopsy diagnosis of intraductal carcinoma is prognostic in intermediate and high risk prostate cancer patients treated by radiotherapy” [Eur J Cancer 2012;48(9): 1318–25]. Eur J Cancer 2012. [DOI: 10.1016/j.ejca.2012.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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99
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Thoms JW, Dal Pra A, Anborgh PH, Christensen E, Fleshner N, Menard C, Chadwick K, Milosevic M, Catton C, Pintilie M, Chambers AF, Bristow RG. Plasma osteopontin as a biomarker of prostate cancer aggression: relationship to risk category and treatment response. Br J Cancer 2012; 107:840-6. [PMID: 22871886 PMCID: PMC3425969 DOI: 10.1038/bjc.2012.345] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND High plasma osteopontin (OPN) has been linked to tumour hypoxia, metastasis, and poor prognosis. This study aims to assess whether plasma osteopontin was a biomarker of increasing progression within prostate cancer (PCa) prognostic groups and whether it reflected treatment response to local and systemic therapies. METHODS Baseline OPN was determined in men with localised (n=199), locally recurrent (n=9) and castrate-resistant, metastatic PCa (CRPC-MET; n=37). Receiver-operating curves (ROC) were generated to describe the accuracy of OPN for distinguishing between localised risk groups or localised vs metastatic disease. We also measured OPN pre- and posttreatment, following radical prostatectomy, external beam radiotherapy (EBRT), androgen deprivation (AD) or taxane-based chemotherapy. RESULTS The CRPC-MET patients had increased baseline values (mean 219; 56-513 ng ml(-1); P<0.0001) compared with the localised, non-metastatic group (mean 72; 12-438 ng ml(-1)). The area under the ROC to differentiate localised vs metastatic disease was improved when OPN was added to prostate-specific antigen (PSA) (0.943-0.969). Osteopontin neither distinguished high-risk PCa from other localised PCa nor correlated with serum PSA at baseline. Osteopontin levels reduced in low-risk patients after radical prostatectomy (P=0.005) and in CRPC-MET patients after chemotherapy (P=0.027), but not after EBRT or AD. CONCLUSION Plasma OPN is as good as PSA at predicting treatment response in CRPC-MET patients after chemotherapy. Our data do not support the use of plasma OPN as a biomarker of increasing tumour burden within localised PCa.
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Ziemys A, Kojic M, Milosevic M, Ferrari M. Interfacial effects on nanoconfined diffusive mass transport regimes. PHYSICAL REVIEW LETTERS 2012; 108:236102. [PMID: 23003974 PMCID: PMC3842168 DOI: 10.1103/physrevlett.108.236102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Indexed: 05/24/2023]
Abstract
A hierarchical multiscale modeling approach, incorporating molecular dynamics and finite element techniques, is used to study parametrically diffusion regimes through nanoconfined fluid. Novel parameters that determine the character of the diffusion regime and diffusion kinetics within the nanoscale confined fluids is established by exploring diffusion where the interface effects at the solid surface are important. New diffusion transport characteristics are established when nanochannel confining dimension approaches 3-4 sizes of diffusing molecules, which also marks peripheries of the non-fickian transport regime.
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