Digital Commons Network^™

Feminism, Domestic Abuse And The Singer-Songwriter, Kathryn Ferguson

School of Art, Design and Architecture Theses

This project explores how feminism and domestic abuse can be articulatedthrough songwriting. Research in music therapy, sociology and popular musicincreasingly speaks to the value of songwriting as a tool for personal andcommunity empowerment, but there is space to actively use songwriting toexplore feminist issues independently of the traditional commercial context ofpopular music. Existing feminist music has been deemed as at its mostsuccessful when it is linked clearly to social change in our communities(Greene, 2017, p.8). Modern popular feminist songwriting has been criticised fornot going far enough in deconstructing systemic patterns of patriarchy (Tong,2024, p.9). Considering this, engaging with academic research …

Endogenous Processes Underlying Clock-Like Mutational Signatures, Teresa Druck, Rami I Aqeilan, C Marcelo Aldaz, Nicola Zanesi, Kay Huebner

Faculty, Staff and Student Publications

Wellcome Trust scientists have shown that “mutational signatures” in specific nucleotide contexts accumulate in genomes of mammalian tissues, providing clues to underlying causes of specific signatures. Analysis of cancer genomes has identified more than 50 single‐base substitution (SBS) signatures, with SBS1, SBS5, and SBS40 linked to aging and present in normal tissues. SBS1 results from cytosine demethylation, whereas SBS5 and SBS40 arise from unknown endogenous mechanisms. We hypothesized that loss of fragile‐site genes drives these two signatures. FHIT, located at FRA3B, is frequently deleted in cancers, and Fhit‐deficient mouse tissues exhibit a mutation profile resembling human SBS5. Data mining of …

Reply To: Late Nonrelapse Mortality: A Hidden Risk In Triplet Therapy For Idh-Mutated Aml?, Jennifer Marvin-Peek, Courtney D Dinardo

Faculty, Staff and Student Publications

No abstract provided.

Grading Melanocytic Dysplasia: Updated Histopathologic Criteria, Christopher R Shea, Victor G Prieto, Catherine M Shachaf, Scott R Florell

Faculty, Staff and Student Publications

Dr. Martin C. Mihm, Jr.'s innovative work on the dysplastic nevus achieved a milestone in his chapter in the World Health Organisation Classification of Skin Tumours (WHO-C). WHO-C presents a dichotomous classification (high-grade versus low-grade dysplastic nevi) and a quantitative metric to assess melanocytic nuclear enlargement. The Duke classification is a related approach that provides mostly quantitative histopathologic criteria for dysplastic nevi and gives due weight to architectural features as well as cytology. This paper proposes and illustrates updated criteria for scoring and grading melanocytic dysplasia, incorporating some of the definitions and categories of WHO-C, while refining the quantitative and …

Case Report: Management Of A Challenging Case Presenting With Dysphagia After Thyroidectomy Requiring Administration Of Liquid 131i Via Mic-Key Low-Profile Tube—A Multidisciplinary Approach, Ahmed Ebada Salem, Sandra Ramirez, Brian R Weston, Akram Hussein, Simone Krebs

Faculty, Staff and Student Publications

Radioactive iodine (RAI) therapy with 131-iodine (131I) remains a cornerstone in the postoperative management of differentiated thyroid carcinoma (DTC). The standard route of administration is oral, typically in capsule form and less commonly as a liquid. However, in patients with severe dysphagia and compromised airway, traditional oral 131I delivery may be contraindicated due to the risk of aspiration and radioactivity contamination. These scenarios present unique clinical challenges that necessitate deviation from conventional protocols. While liquid 131I may be administered through the mouth or via nasogastric or percutaneous gastrostomy tubes, there is currently no standardized approach, and potential risks, such as …

Evolving Molecular Subtypes Of Gastric Cancer: From Past Classifications To Present Consensus And Future Directions For Precision Therapy, Ju-Seog Lee

Faculty, Staff and Student Publications

Gastric cancer is a biologically heterogeneous disease. The advent of high-throughput multi-omic technologies has revolutionized our understanding of gastric cancer by deconstructing this heterogeneous entity into distinct and more homogeneous molecular subtypes. Early classifications based on gene expression, methylation, and histology have laid the groundwork for multi-omic frameworks proposed by The Cancer Genome Atlas and Asian Cancer Research Group, which established the foundation of modern molecular taxonomy. Subsequent integrative efforts, particularly the Consensus Genomic Subtypes (Super 6) model, have unified this collected information into clinically relevant subtypes that bridge prognostic stratification with treatment strategies. Established biomarkers such as human epidermal …

Bop2-Te: Bayesian Optimal Phase 2 Design For Jointly Monitoring Efficacy And Toxicity With Application To Dose Optimization, Kai Chen, Heng Zhou, J Jack Lee, Ying Yuan

Faculty, Staff and Student Publications

We propose a Bayesian optimal phase 2 design for jointly monitoring efficacy and toxicity, referred to as BOP2-TE, to improve the operating characteristics of the BOP2 design proposed by Zhou et al. (2017). BOP2-TE utilizes a Dirichlet-multinomial model to jointly model the distribution of toxicity and efficacy endpoints, making go/no-go decisions based on the posterior probability of toxicity and futility. In comparison to the original BOP2 and other existing designs, BOP2-TE offers the advantage of providing rigorous type I error control in cases where the treatment is toxic and futile, effective but toxic, or safe but futile, while optimizing …

Bop2-Comb: Bayesian Optimal Phase Ii Design For Optimizing Doses And Assessing Contribution Of Components In Drug Combinations, Xiaohan Chi, Ying Yuan, Ruitao Lin

Faculty, Staff and Student Publications

Background: Personalized cancer treatment using combination therapies offers substantial therapeutic benefits over single-agent treatments in most cancers. However, unmet clinical needs and increasing market competition pressure drug developers to quickly optimize combination doses and clearly demonstrate the contribution of each component when developing and evaluating new combination treatments.

Methods: We propose a Bayesian optimal phase II drug-combination (BOP2-Comb) design that optimizes the combination dose and evaluates the proof-of-concept as well as the contribution of each component in two seamless stages. Our optimal calibration scheme minimizes the total trial sample size while controlling incorrect decision rates at nominal levels. This calibration …

Respiratory Motion Effects And Plan Robustness For Lattice Radiation Therapy, Rachael M Martin-Paulpeter, Peter A Balter, Luis A Perles, Ethan B Ludmir, Joshua S Niedzielski

Faculty, Staff and Student Publications

Introduction: Lattice radiation therapy (LRT), a form of spatially fractionated radiation therapy (SFRT), has shown promise in treating bulky tumors. It consists of hot and cold spots within the tumor, and the ratio between these doses is thought to be important in clinical outcomes. Respiratory motion is expected to degrade these peak-to-valley dose ratios (PVDRs) but has largely been ignored in LRT literature and clinical practice. This work aims to quantify the response of LRT dose distributions to motion to better inform motion management decisions and improve clinical outcomes.

Methods: Respiratory motion of peak-to-peak amplitudes from 0.3 to 2 cm …

Single-Cell Lineage Trajectory Defines Cyclin-Dependent Kinase Inhibitor-Sensitive Cells-Of-Origin In Esophageal Squamous Cell Carcinoma, Kyung-Pil Ko, Jie Zhang, Sohee Jun, Jae-Il Park

Faculty, Staff and Student Publications

Background and aims: Understanding the cells of origin is essential for overcoming therapy resistance and improving early intervention strategies in esophageal squamous cell carcinoma (ESCC). Despite recent advances in genomic profiling, the precise cellular hierarchies and molecular programs driving ESCC initiation remain poorly defined.

Methods: We utilized machine learning-based single-cell trajectory analysis on 4-nitroquinoline 1-oxide-induced murine models and genetically engineered organoids to identify cellular lineages during tumorigenesis. Combined with gene regulatory network analysis, we identified transcriptional drivers of tumor initiation and employed transcriptome-based drug repurposing to predict compounds targeting these initiating populations.

Results: Our analyses revealed multiple distinct epithelial clusters …

Peripheral Cd200r Signaling: A Critical Regulator Of Post-Stroke Inflammation In Aged Mice, Conelius Ngwa, Afzal Misrani, Yan Xu, Jingjing Wang, Rodney Ritzel

Faculty, Staff and Student Publications

The immune responses to ischemic stroke are subjected to endogenous inhibitory pathways that delimitate the post-stroke inflammation. Among them, the interaction between CD200 and its receptor (CD200R) is increasingly recognized for its role in regulating neuroinflammation across various central nervous system (CNS) disorders. In the present study, we have examined the role of central (brain) vs. peripheral CD200R signaling in acute ischemic stroke using aged bone marrow chimeric (BMC) mice (16-19 months old). These chimeras were generated by transplanting bone marrow from CD200R knockout (KO), green fluorescent protein (GFP), or wild-type (WT) donor mice into irradiated recipient mice, and then …

Genomic Determinants Of Response And Resistance To Pirtobrutinib In Relapsed/Refractory Chronic Lymphocytic Leukemia, Jennifer R Brown, Bastien Nguyen, Sai Prasad Desikan, Helen Won, Shady I Tantawy, Narasimha Marella, Lauren M Hanson, Andrew Parker, Salomé Calado Botelho, Jennifer A Woyach, Krish Patel, Constantine S Tam, Toby A Eyre, Chan Y Cheah, Nirav N Shah, Paolo Ghia, Wojciech Jurczak, Minna Balbas, Binoj Nair, Paolo Abada, Chunxiao Wang, Denise Wang, Lindsey E Roeker, Varsha Gandhi, William G Wierda

Faculty, Staff and Student Publications

Pirtobrutinib, a noncovalent, reversible Bruton tyrosine kinase inhibitor (BTKi), demonstrated efficacy in patients with chronic lymphocytic leukemia (CLL), resistant to covalent BTKi (cBTKi). We analyzed genomic correlations with response and resistance to pirtobrutinib in relapsed/refractory (R/R) patients with CLL pretreated with cBTKi enrolled in the phase 1/2 BRUIN trial. DNA sequencing was performed on peripheral blood mononuclear cells at baseline, on treatment, and at progressive disease (PD). Common alterations at baseline included mutations in BTK (43%), TP53 (38%), SF3B1 (25%), NOTCH1 (23%), ATM (19%), XPO1 (11%), PLCG2 (9%), BCL2 (8%), and 17p deletion (28%). Common baseline BTK mutations included C481S …

Management Of Retropharyngeal Lymph Node Metastases In Thyroid Cancer, Isabelle Fournier, Ashwini Venkata Bandi, Sarah Hamidi, Priyanka Iyer, Naifa L Busaidy, Ramona Dadu, Steven G Waguespack, Ugur Nur Basmaci, Michelle D Williams, Mena Mansour, Maria Gule Monroe, Neil D Gross, Ryan P Goepfert, Nancy D Perrier, Victoria Banuchi, Jennifer R Wang, Anastasios Maniakas, Mark E Zafereo

Faculty, Staff and Student Publications

Background: Retropharyngeal lymph node (RPLN) metastases in thyroid cancer are rare, with optimal management underreported.

Methods: Retrospective study of consecutive thyroid cancer patients with RPLN metastases treated at MD Anderson Cancer Center between 2000 and 2024.

Results: One hundred and sixty-seven patients (75% differentiated, 21% medullary, 4% poorly differentiated thyroid cancer) were divided into three groups: active surveillance (AS) (13%), surgery (56%), and nonsurgical treatment (31%). In the AS group (median follow-up 2.3 years), RPLN metastases grew a median 3% (range: 0-56) or 0.02 cm (range: 0-0.7) per year. Surgical therapy included transcervical (73%), transoral robotic (14%), transoral (12%), and …

Preliminary Examination Of Orexin Receptor Antagonism With Suvorexant In Individuals With Methamphetamine Use Disorder: A Case Series Study, Heather Webber, Jessica Badawi, Douglas Calvillo, Jin Yoon, Michael Weaver, Joy Schmitz

Faculty, Staff and Student Publications

No abstract provided.

Preclinical Ischemic Stroke Multicenter Trials (Prism) Collective Statement: Opportunities, Challenges, And Recommendations For A New Era, Cenk Ayata, Philip M Bath, Anna M Planas, Stuart M Allan, Johannes Boltze, Claire L Gibson, Marcio A Diniz, Stefano Fumagalli, Fahmeed Hyder, Raymond C Koehler, Arthur Liesz, Sarah K Mccann, Tim Magnus, Louise D Mccullough, Emily S Sena, Simone Beretta, Jaroslaw Aronowski, Francesca Bosetti, Clinton B Wright, Patrick D Lyden, Lauren H Sansing

Faculty, Staff and Student Publications

Preclinical stroke research faces a critical translational gap, with animal studies failing to reliably predict clinical efficacy. To address this, the field is moving toward rigorous, multicenter preclinical randomized controlled trials (mpRCTs) that mimic phase 3 clinical trials in several key components. This collective statement, derived from experts involved in mpRCTs, outlines considerations for designing and executing such trials. mpRCTs offer advantages such as increased sample sizes, robust statistical design, incorporation of heterogeneity, and standardized protocols, but they face challenges in finding the right balance between standardization and heterogeneity, appropriate stroke model selection, and outcome measures, as well as the …

Engineering Mutation Clones In Mammalian Cells With Crispr/Cas9, Zijun Huo, Jian Tu, Rachel Shoemaker, Dung-Fang Lee, Ruiying Zhao

Faculty, Staff and Student Publications

CRISPR, Clustered Regularly Interspaced Short Palindromic Repeat, as a powerful genome engineering system, has been widely accepted and employed in gene editing of a vast range of cell types. Compared to zinc finger nucleases (ZFNs) or transcription activator-like effector nucleases (TALENs), CRISPR shows a less complicated process and higher efficiency. With the development of different CRISPR systems, it can be used not only to knock out a gene but also to make precise modifications, activate or repress target genes with epigenetic modifications, and even for genome wide screening. Here we will describe the procedure of generating a stable cell line …

T Cells Modulate The Development And Maintenance Of Painful Paclitaxel-Induced Peripheral Neuropathy In Rnu Rats, Ahmed Olalekan Bakare, Gerard Limerick, Vasudha Goel, Ratan K Banik, Lei Zheng, Kristine Glunde, Eellan Sivanesan

Faculty, Staff and Student Publications

The role of T cells in chemotherapy-induced peripheral neuropathy (CIPN) is complex and shaped by biological and experimental factors, including sex, hormonal status, genetic background, and cancer model. This complexity has contributed to inconsistent findings among studies, limiting therapeutic progress. In this study, we investigate how T cells contribute to painful paclitaxel (PTX)-induced peripheral neuropathy (PIPN). Adult male T cell-competent (RNU+/−) and T cell-deficient (RNU−/−) rats were subcutaneously inoculated with tumor cells and subsequently treated with intraperitoneal PTX (8 mg/kg total dose). Reflexive (mechanical, heat, cold) and non-reflexive (burrowing, gait) pain behaviors were assessed from baseline through week 6. Immunohistochemistry …

The Effects Of Measurement Errors On Minimum Ablative Margins After Thermal Ablation Of Liver Tumors: A Simulation Study, Iwan Paolucci, Jessica Albuquerque, Noreen S Siddiqi, A Kyle Jones, Kristy K Brock

Faculty, Staff and Student Publications

Purpose: To develop a mathematical framework to estimate the in silico A0 threshold based on the technical specifications of a specific ablation confirmation software package for thermal ablation of liver tumors that can then be used to identify the impact of different sources of error.

Methods: To estimate in silico A0 thresholds, we developed a simulation framework incorporating technical parameters and biological effects. Technical parameters were segmentation error, registration error, and slice thickness, and biological effects were tissue shrinkage and microscopic satellite lesions; these parameters and effects were all modeled using statistical distributions. For each permutation of parameters, a logistic …

Intratumoral Bacteria Are Immunosuppressive And Promote Immunotherapy Resistance In Head And Neck Squamous Cell Carcinoma, Natalie L Silver, Jin Dai, Travis D Kerr, Jessica Altemus, Rekha Garg, Tyler Alban, Vladimir Makarov, David J H Shih, Shwetha V Kumar, Akeem Santos, Rehan Akbani, Adam Burgener, Mohammed Dwidar, Neil Gross, Andrew G Sikora, Elias J Sayour, Apollo Stacy, Christian Jobin, Timothy A Chan, Renata Ferrarotto, Daniel J Mcgrail

Faculty, Staff and Student Publications

Despite the promise of immune checkpoint blockade (ICB) in head and neck squamous cell carcinoma (HNSCC), mediators of response are poorly understood. To address this, here we analyzed oropharyngeal HNSCCs treated with neoadjuvant durvalumab (anti-PDL1) alone or in combination with tremelimumab (anti-CTLA4) from the CIAO clinical trial ( NCT03144778 ). We found that only the total abundance of intratumoral bacteria predicted ICB response, which was validated in multiple independent cohorts. High intratumoral bacteria abundance was associated with an immunosuppressive tumor microenvironment, characterized by an accumulation of neutrophils coupled with depletion of T cells and other adaptive immune cells. Experimental elevation …

Uncertainty-Guided Test-Time Optimization For Personalizing Segmentation Models In Longitudinal Medical Imaging, Jaehee Chun, Austin Castelo, Mckell Woodland, Caleb O'Connor, Mais Al Taie, Aashish Gupta, Shanli Ding, Jeddy Bennett, Anirban Maitra, Matthew A Firpo, Kimberly Kirkwood, Eugene J Koay, Kristy K Brock

Faculty, Staff and Student Publications

Background: Accurate and consistent image segmentation across longitudinal scans is essential in many clinical applications, including surveillance, treatment monitoring, and adaptive interventions. While personalized model adaptation using patient-specific prior scans has shown promise, current approaches typically rely on fixed training durations and lack mechanisms to determine optimal stopping points on a per-patient basis, particularly in the absence of validation labels.

Purpose: We propose an uncertainty-guided test-time optimization (TTO) framework that dynamically adjusts the personalization duration for each patient using a validation-free stopping criterion based on predictive uncertainty.

Methods: Our framework personalizes a generalized segmentation model using patient-specific prior imaging and …

Key Regulatory Roles Of Prdm1 In Human Nk-Cell Differentiation And Activation, Xuxiang Liu, Yunfei Shi, Jibin Zhang, Kunal Shetty, Krystie Chew, Qiang Gong, Haiqing Li, Ru Chen, Sheng Pan, Katarzyna Dąbrowska, Roger E Moore, Krystine Garcia-Mansfield, Patrick Pirrotte, Jinhui Wang, Yuping Li, Gehong Dong, Logan Lee, Timothy W Mckeithan, Javeed Iqbal, Wing C Chan

Faculty, Staff and Student Publications

PRDM1, encoding a transcription factor (TF), regulates plasma cell and CD8+ T-cell terminal differentiation and Th2 lineage specification, while its role in human NK-cell differentiation and homeostasis is largely unknown. Here, we employed a multi-omics approach to dissect the transcriptional control of PRDM1 on human NK-cells. PRDM1 is important in NK-cell terminal differentiation based on gene expression profiling and its targeting of key regulators in the process. PRDM1-deleted NK-cells displayed a less mature phenotype simulating the CD56bright NK-cell population accompanied by upregulation of stem-like gene signatures. PRDM1-bound genes were enriched in T/NK-cell receptor signaling, activation, and NK-cell effector …

Trial Interviews To Explore Glycogen Storage Disease Type Ia Patient Experiences Following Gene Therapy, Diane M Turner-Bowker, Jessica Butler, Shayna Egan, David A Weinstein, David F Rodriguez-Buritica, María-Luz Couce, John J Mitchell, Christina Theodore-Oklota

Faculty, Staff and Student Publications

Background: Glycogen storage disease type Ia (GSDIa) is a rare, inherited, autosomal recessive deficiency of glucose-6-phosphatase (G6Pase), an enzyme necessary in glycogenolysis and gluconeogenesis. To maintain normal blood glucose levels and ensure survival, individuals living with GSDIa must frequently consume complex carbohydrates (eg, uncooked cornstarch). Dietary management can result in chronic complications and significant patient burden. DTX401 (pariglasgene brecaparvovec) is an investigational adeno-associated virus serotype 8 vector (AAV8)-based gene therapy designed to restore endogenous glucose production.

Objectives: Patient experience interviews were conducted as part of an open-label, phase 1/2 dose-escalation trial (NCT03517085) evaluating the safety and efficacy of …

Integrative Multi-Omics Profiling Identifies Infiltrative Hepatocellular Carcinoma As An Immunotherapy-Resistant Subtype With Distinct Molecular Features, Won Suk Lee, Seonjeong Woo, Sung Hwan Lee, Gae Hoon Jo, Ilhwan Kim, Chansik An, Gwangil Kim, Haeyoun Kang, Beodeul Kang, Jung Sun Kim, Ho Yeong Lim, Incheon Kang, Hannah Yang, So Jung Kong, Dahyeon Son, Dong Jun Shin, Woo Young Kwon, Da-Yeon Lee, Ju-Seog Lee, Junho Park, Youngsoo Kim, Sohyun Hwang, Chan Kim, Hong Jae Chon

Faculty, Staff and Student Publications

Background/aims: Hepatocellular carcinoma (HCC) exhibits substantial morphological and biological heterogeneity. Clinical and molecular relevance of the infiltrative subtype remains poorly defined in the context of cancer immunotherapy. We aimed to evaluate the prognostic impact and molecular features of infiltrative HCC in patients treated with first-line atezolizumab plus bevacizumab (Ate/Bev).

Methods: We included 307 patients with advanced HCC treated with Ate/Bev and classified them into four gross morphological types based on imaging. Multi-omics profiling was conducted on tumor samples. Type IV infiltrative signature was derived and externally validated using five independent HCC cohorts, including IMbrave150.

Results: Infiltrative morphology, encompassing pure and …

Digital Communication Strategies For Culinary Medicine In Cancer Prevention And Survivorship: Information-Seeking Habits And Content Preferences Of Online Cooking Media Among Adults Participating In Four Cancer Prevention And Control Cohort Studies, Margaret Raber, Sara Fares, Maria Vazquez, Larkin Strong, Carrie Daniel-Macdougall, Karen Basen-Engquist

Faculty, Staff and Student Publications

Introduction

Poor diet and excess weight have been linked to increased risk for at least 13 types of cancer. Culinary medicine utilizes experiential cooking skill development to improve individuals’ capacity for healthy eating. Digital communication strategies offer pathways for scalable culinary medicine interventions, but little research has explored how online cooking tools could be leveraged for cancer prevention messaging. We conducted a cross-sectional survey study exploring online cooking information-seeking habits and content preferences among participants in four cancer prevention and control cohorts to inform future digital culinary medicine interventions.

Methods

A cross-sectional survey study was conducted with a convenience sample …

Interventional Oncology: A Primer For Clinicians On The Role Of Ablation And Embolization For Solid Tumors, Mohamed E Abdelsalam, Kamran Ahrar, Rahul A Sheth, Ketan Y Shah, Steven Yevich, Bruno C Odisio, Armeen Mahvash, Peiman Habibollahi

Faculty, Staff and Student Publications

Interventional radiology (IR) is a rapidly evolving medical field that combines advanced imaging with minimally invasive techniques for both diagnosis and treatment. Interventional oncology (IO), a subspecialty of IR, focuses on the minimally invasive, image-guided intervention for cancer and cancer-related conditions. IR plays an important and increasingly recognized role within the multidisciplinary care of patients with cancer, contributing meaningfully to diagnosis, therapy, and palliation. IO therapies, particularly tumor ablation and transarterial embolization, aim to target tumors directly while preserving surrounding healthy tissue. These therapies are increasingly supported by clinical guidelines and have shown favorable outcomes in cancers such as hepatocellular …

Infliximab For Grade Iii Or Iv Immune Checkpoint Inhibitor Nephritis Clinical And Translational Evidence, Nada Youssef, Masroor Habeeb, Hong Chen, Zainab Alhamal, Omar Mamlouk, Valda Page, Sreyashi Basu, Adi Diab, Padmanee Sharma, Ala Abudayyeh

Faculty, Staff and Student Publications

Introduction: Acute interstitial nephritis (AIN) is a common presentation of immune checkpoint inhibitor (ICI) toxicity. Increased tumor necrosis factor (TNF)-α expression has been observed in ICI-induced AIN (ICI-AIN). In this study, we compared treatment with glucocorticoids plus infliximab to glucocorticoids only in stage III or IV ICI-AIN. We conducted retrospective NanoString analysis of ICI-exposed kidney samples to identify associated gene signatures and possible association with TNF-α expression.

Methods: We reviewed the records of patients who received ICI, developed acute kidney injury (AKI), and underwent kidney biopsy at MD Anderson Cancer Center from January 2022 to October 2024. Fifty-five patients had …

Evaluation Of Organ-Specific Relative Biological Effectiveness Of Proton Therapy Using Radiation-Induced Pneumonitis As An Endpoint, Li Liao, Ting Xu, Mei Chen, Tingshi Su, Narayan Sahoo, Steven J Frank, Zhongxing Liao, Xiaodong Zhang

Faculty, Staff and Student Publications

Background and purpose: Proton therapy has become widely used for non-small cell lung cancer (NSCLC) due to its ability to spare normal tissue. However, the commonly assumed relative biological effectiveness (RBE) of 1.1 may underestimate the therapy's true biological effects on lung, potentially leading to a higher than expected incidence of radiation-induced pneumonitis (RP). In this retrospective study, we evaluated the variability of organ-specific RBE of proton therapy using RP grade 2 or higher (RP2+) as an endpoint.

Materials and methods: Data from 270 NSCLC patients across two clinical trials were analyzed, with 134 given photon therapy and 136 given …

The Lysine Demethylase Kdm4c Is An Oncogenic Driver And Regulates Erk Activity In Kras-Mutant Pancreatic Ductal Adenocarcinoma, Menna-T-Allah Shaheen, Sarah Dhebat, Kimal I Rajapakshe, Bidyut Ghosh, Benson Chellakkan Selvanesan, Cara L Haymaker, Huamin Wang, Ching-Fei Li, Haoqiang Ying, Anirban Maitra

Faculty, Staff and Student Publications

Deregulation of proteins involved in chromatin regulation is common in pancreatic ductal adenocarcinoma (PDAC). Lysine demethylase 4C (KDM4C) is one of the chromatin-modifying proteins frequently overexpressed across multiple solid cancers and is linked to chromatin instability, increased cell proliferation, and enhanced stem cell–like behavior. We observed upregulation of KDM4C protein in a panel of human PDAC cell lines and patient samples compared with nonneoplastic controls. CRISPR/Cas9-mediated deletion of KDM4C in human and murine PDAC cells reduced proliferation, clonogenicity, and increased survival of orthotopically implanted murine PDAC allografts. Transcriptomic and proteomic analyses revealed that loss of KDM4C in both human and …

A Combinatorial Approach To Synthetic Data Generation For Machine Learning, Krishna Khadka, Jaganmohan Chandrasekaran, Yu Lei, Raghu Kacker, D Richard Kuhn

Faculty, Staff and Student Publications

Datasets used in machine learning often contain sensitive information, including personally identifiable health and financial details. A common challenge faced by organizations and researchers is the risk of privacy breaches when using real-world data. Synthetic data can be used as an alternative to the real-world data. In existing synthetic data generation techniques, an encoder processes the real-world data to map it into a lower-dimensional latent space. Random sampling is then performed in this latent space. Subsequently, a decoder network is utilized to generate synthetic data from these sampled points in the latent space. Such approaches typically require generating a large …

Association Between Three-Dimensional Margin Assessment And Local Tumor Control In Percutaneous Lung Cryoablation Of Colorectal Metastases, Frank Mohn, Koustav Pal, Caleb O'Connor, Iwan Paolucci, Austin Castelo, Steven Yevich, Bruno C Odisio, Alda Lui Tam, Rahul A Sheth, Kristy K Brock

Faculty, Staff and Student Publications

Purpose

To evaluate the association of two minimum ablation margin (MAM) estimation methods: manual three-dimensional segmentation and biomechanical deformable image registration (DIR) with local tumor progression-free survival (LTPFS) after percutaneous lung cryoablation of colorectal pulmonary metastases.

Materials and Methods

This retrospective single-institution study included patients who underwent percutaneous lung cryoablation between May 2012 and March 2023 (median follow-up, 3.6 years; range, 0.8–9.6 years). Manual three-dimensional MAM was calculated for all tumors, and DIR-based MAM was estimated in a subset with intraprocedural full-thorax imaging. Cox proportional hazards regression assessed associations between MAM and LTPFS. The primary outcome was 2-year LTPFS, with …