Radiation Medicine Commons^™

Improving Radiotherapy In Immunosuppressive Microenvironments By Targeting Complement Receptor C5ar1, Callum Beach, David Maclean, Dominika Majorova, Stavros Melemenidis, Dhanya K Nambiar, Ryan K Kim, Gabriel N Valbuena, Silvia Guglietta, Carsten Krieg, Mahnaz Darvish-Damavandi, Tatsuya Suwa, Alistair Easton, Lily Vs Hillson, Ashley K Mcculloch, Ross K Mcmahon, Kathryn Pennel, Joanne Edwards, Sean M O'Cathail, Campbell S Roxburgh, Enric Domingo, Eui Jung Moon, Dadi Jiang, Yanyan Jiang, Qingyang Zhang, Albert C Koong, Trent M Woodruff, Edward E Graves, Tim Maughan, Simon Ja Buczacki, Manuel Stucki, Quynh-Thu Le, Simon J Leedham, Amato J Giaccia, Monica M Olcina

Faculty, Staff and Student Publications

An immunosuppressive microenvironment causes poor tumor T cell infiltration and is associated with reduced patient overall survival in colorectal cancer. How to improve treatment responses in these tumors is still a challenge. Using an integrated screening approach to identify cancer-specific vulnerabilities, we identified complement receptor C5aR1 as a druggable target, which when inhibited improved radiotherapy, even in tumors displaying immunosuppressive features and poor CD8+ T cell infiltration. While C5aR1 is well-known for its role in the immune compartment, we found that C5aR1 is also robustly expressed on malignant epithelial cells, highlighting potential tumor cell-specific functions. C5aR1 targeting resulted in increased …

Avoid, Delay, Shorten. Results Of Radiation Oncology’S Covid19 Patient Exposure Risk Mitigation Guidelines, Alex Kubli, Ms, Lilya Babinski, Bs, Angelia Landers, Phd, Christian Fernandez, Md, Amy Harrison, Phd

Health Equity and Quality Improvement (HEQI) Summit

We implemented evidence-based COVID19 guidelines on 3/16/20 to minimize patient exposure risks by avoiding, delaying, and shortening patient treatments when possible.

We analyzed the effectiveness of our COVID guidelines by comparing the number of new patient starts and number of treatments before and after implementation.

Our department successfully decreased patient exposure risk by reducing new prescription starts, rates of longer treatment courses, and overall number of treatment encounters in an evidence-based approach.

Retrospective Evaluation Of Weight Loss In Maine Medical Center Cancer Institute (Mmcci) Patients Receiving Radiation Treatment For Head And Neck Cancer, Julian Johnson, David Debartolo-Stone, Jessica Moore, Ruth Hanselman, Stephen Tyzik, Suneela Nayak, Amy Sparks

Operations Transformation

Treatment for head and neck cancer often results in weight loss as a side effect. One option to mitigate this weight loss is placement of a percutaneous endoscopic gastrostomy (PEG) tube placement. Radiation oncologists at a academic tertiary medical center discuss the option of PEG placement during patient consultation.

A retrospective evaluation of weight loss in patients receiving radiation was conducted over a two-year period. The goal of this data collection was to create a standard for oncology consultations regarding PEG tube placement.

Baseline metrics and a root cause analysis drove subsequent data collection steps. After analyzing the raw data, …

The Oncology Care Model: Oncology's First Foray Away From Volume And Toward Value-Based Care., Andrew Song, Valerie P. Csik, Amy Leader, Vittorio Maio

Department of Radiation Oncology Faculty Papers

No abstract provided.

Quality Of Life Outcomes Following Organ-Sparing Sbrt In Previously Irradiated Recurrent Head And Neck Cancer, E. Gogineni, I. Zhang, Z. Rana, M. Marrero, G. Gill, A. Sharma, A. C. Riegel, S. Teckie, M. Ghaly

Journal Articles

No abstract provided.

Local Radiation Therapy For Palliation In Patients With Multiple Myeloma Of The Spine, D. Mark, P. Gilbo, R. Meshrekey, M. Ghaly

Journal Articles

No abstract provided.

Intermediate-Risk Meningioma: Initial Outcomes From Nrg Oncology Rtog 0539, L. Rogers, P. Zhang, M. A. Vogelbaum, A. Perry, L. S. Ashby, J. M. Modi, A. M. Alleman, J. Galvin, J. P. S. Knisely, M. P. Mehta, +5 Additional Authors

Journal Articles

No abstract provided.

Screening For Depression In Cancer Patients Receiving Radiotherapy: Feasibility And Identification Of Effective Tools In The Nrg Oncology Rtog 0841 Trial, L. I. Wagner, S. L. Pugh, W. Small, J. Kirshner, K. Sidhu, M. J. Bury, A. S. Denittis, T. E. Alpert, B. F. Bloom, D. W. Bruner, +6 Additional Authors

Journal Articles

No abstract provided.

Microtubule-Targeting Agents Can Sensitize Cancer Cells To Ionizing Radiation By An Interphase-Based Mechanism, D. Markowitz, G. Ha, R. Ruggieri, M. Symons

Journal Articles

No abstract provided.

Long-Term Outcome Of 487 Patients With Early-Stage Extra-Nodal Marginal Zone Lymphoma, S. Teckie, S. Qi, M. Chelius, S. Lovie, M. Hsu, A. Noy, C. Portlock, J. Yahalom

Journal Articles

No abstract provided.

High-Dose Hypofractionated Radiotherapy Is Effective And Safe For Tumors In The Head-And-Neck, S. Teckie, B. H. Lok, S. Rao, S. I. Gutiontov, Y. Yamada, S. L. Berry, M. J. Zelefsky, N. Y. Lee

Journal Articles

No abstract provided.

Defining The Value Framework For Prostate Brachytherapy Using Patient-Centered Outcome Metrics And Time-Driven Activity-Based Costing, N. G. Thaker, T. J. Pugh, U. Mahmood, S. Choi, T. E. Spinks, N. E. Martin, T. T. Sio, B. W. Cox, L. Potters, S. J. Frank, +8 Additional Authors

Journal Articles

No abstract provided.

Cytoplasmic, Full Length And Novel Cleaved Variant, Tblr1 Reduces Apoptosis In Prostate Cancer Under Androgen Deprivation, G. Daniels, X. Zhang, X. Zhong, L. Santiago, L. H. Wang, X. Wu, J. Y. Zhang, F. Liang, X. Li, P. Lee, +6 Additional Authors

Journal Articles

No abstract provided.